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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 1851. Отображено 198.
10-05-2008 дата публикации

СПОСОБ УПРАВЛЕНИЯ СКОРОСТЬЮ ПЕРЕДАЧИ И МОБИЛЬНАЯ СТАНЦИЯ

Номер: RU2324295C2
Принадлежит: НТТ ДоКоМо, Инк. (JP)

Изобретение относится к технике мобильной связи. Способ управления скоростью передачи заключается в том, что передают из базовой радиостанции в мобильную станцию канал предоставления относительной скорости, который включает в себя команду для управления скоростью передачи в восходящей линии связи, и определяют в мобильной станции, что канал предоставления относительной скорости, который включает в себя команду Поддержания для указания о поддержании скорости передачи, принимают в мобильной станции, когда данные, подлежащие передаче, исчерпаны в буфере передачи, и сигнал приема в канале предоставления относительной скорости определен как «0» или «+1», и поддерживают скорость передачи. Технический результат заключается в обеспечении передачи данных без уменьшения скорости передачи в восходящей линии связи, даже когда возникают новые данные, подлежащие передаче, в буфере передачи. 2 н. и 1 з.п. ф-лы, 14 ил.

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10-12-2016 дата публикации

ОПРЕДЕЛЕНИЕ РАЗМЕРА ШИФРОВАЛЬНОЙ КНИГИ HARQ/ACK

Номер: RU2604432C2
Принадлежит: ИНТЕЛ КОРПОРЕЙШН (US)

Изобретение относится к определению шифровальной книги гибридных автоматических запросов повторения (HARQ)-подтверждения (ACK) в сетях беспроводной связи. Технический результат - эффективное снижение непроизводственных издержек от использования HARQ-ACK. Для этого получают индекс назначения нисходящего канала (DAI); определяют количество нисходящих субкадров в пределах пакетного окна первой обслуживающей соты из множества обслуживающих сот, в котором нисходящие субкадры пакетного окна ассоциированы с восходящим субкадром для передачи соответствующей информации гибридного автоматического запроса HARQ-ACK; определяют количество битов HARQ-ACK, соответствующих первой обслуживающей соте, доступных на физическом восходящем канале совместного использования (PUSCH) восходящего субкадра, основываясь на DAI и определенном количестве нисходящих субкадров; определяют количество битов HARQ-ACK, соответствующих каждой из множества обслуживающих сот, доступных на PUSCH восходящего субкадра; и определяют ...

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10-11-2011 дата публикации

ИСПОЛЬЗОВАНИЕ КОДОВЫХ СЛОВ В СИСТЕМЕ БЕСПРОВОДНОЙ СВЯЗИ

Номер: RU2433569C2

Настоящее изобретение относится к использованию кодовых слов в системе беспроводной связи. Технический результат заявленного изобретения заключается в эффективной по ширине полосы пропускания некогерентной передаче служебных сигналов для передач по каналу управления восходящей линии связи. Устройство связи выполняется с возможностью использовать или формировать набор комплексно-ортогональных кодовых слов для передачи информации канала управления с использованием некогерентной передачи служебных сигналов эффективным по ширине полосы пропускания способом. Набор комплексно-ортогональных кодовых слов содержит первый поднабор кодовых слов, причем эти кодовые слова имеют желательное взаимно-корреляционное свойство, и другой поднабор(ы) кодовых слов, который включает в себя исключенные кодовые слова, при этом исключенные кодовые слова могут включать в себя отброшенные кодовые слова и/или пары кодовых слов, которые формируют взаимно-корреляционное свойство наихудшего случая. Набор и поднаборы кодовых ...

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04-06-2019 дата публикации

СПОСОБ И УСТРОЙСТВО ДЛЯ КООРДИНАЦИИ ФУНКЦИИ САМОСТОЯТЕЛЬНОЙ ОПТИМИЗАЦИИ В БЕСПРОВОДНОЙ СЕТИ

Номер: RU2690505C1
Автор: ЧОУ Джои (US)
Принадлежит: ИНТЕЛ КОРПОРЕЙШН (US)

Изобретение относится к беспроводным системам связи. Сетевой менеджер (NM) включает в себя функцию координации самооптимизируемой сети (SON) для достижения технического результата в виде недопущения конфликта и обеспечения разрешения конфликта, вызванного работой одной функции SON одновременно с тем, когда другая функция SON должна работать на расширенном узле B (eNodeB). Состояние координации SON является одним из следующих состояний: первое состояние, указывающее, что соответствующий eNodeB уже обеспечивает зону обслуживания для других eNodeB, выключенных с целью экономии энергии функцией SON ESM; второе состояние, указывающее, что соответствующий eNodeB уже обеспечивает зону обслуживания для соседнего eNodeB, который находится в состоянии простоя; и третье состояние, указывающее, что соответствующий eNodeB обновляет параметры конфигурации в соответствующей соте. 3 н. и 22 з.п. ф-лы, 5 ил.

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20-03-2011 дата публикации

ИСПОЛЬЗОВАНИЕ КОДОВЫХ СЛОВ В СИСТЕМЕ БЕСПРОВОДНОЙ СВЯЗИ

Номер: RU2009133780A
Принадлежит:

... 1. Способ, который способствует передаче информации, содержащий этапы, на которых: ! - формируют набор кодовых слов, чтобы способствовать передаче информации, содержащей информацию канала управления; и ! - исключают поднабор кодовых слов, по меньшей мере, частично на основе предварительно определенного критерия кодового слова. ! 2. Способ по п.1, в котором предварительно определенный критерий кодового слова относится, по меньшей мере, к одному из доступной ширины полосы пропускания, числа кодовых слов в наборе кодовых слов, числа битов информации канала управления, которая должна быть передана в данное время, значения взаимной корреляции соответствующей пары кодовых слов, типа передачи с ортогональной модуляцией, которая должна быть использована, заданного значения взаимной корреляции для наихудшего случая между кодовыми словами, числа тонов, используемых для того, чтобы способствовать передаче информации канала управления, или числа исключенных кодовых слов, которые должны быть использованы ...

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20-12-2016 дата публикации

СПОСОБ ОБРАБОТКИ ИНФОРМАЦИИ О СОСТОЯНИИ КАНАЛА, БАЗОВАЯ СТАНЦИЯ И ТЕРМИНАЛ

Номер: RU2015120615A
Принадлежит:

... 1. Способ обработки информации о состоянии канала (CSI), включающий:конфигурирование базовой станцией для терминала множества процессов CSI, каждый из которых по меньшей мере включает информацию части измерений канала и информацию части измерений помех;если базовая станция конфигурирует соответствующие эталонные процессы CSI для некоторых или всех процессов CSI, по меньшей мере ограничение индикатора ранга (RI) процессов CSI для вычисления отчета о CSI таким образом, чтобы он был совместим с RI эталонных процессов CSI, путем конфигурирования эталонных процессов CSI; и для процессов CSI, сконфигурированных с использованием эталонных процессов CSI, прием базовой станцией отчета о CSI процессов CSI согласно RI, или RI и индикатору типа предварительного кодирования (PTI), или RI и индикатору матрицы предварительного кодирования (PMI0), соответствующих эталонным процессам CSI.2. Способ по п. 1, включающий также:в том случае если возникает конфликт RI, или RI и PTI, или RI и PMI0, соответствующих ...

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28-02-2018 дата публикации

СПОСОБЫ СВЯЗИ

Номер: RU2645739C1
Принадлежит: АЛЬКАТЕЛЬ ЛЮСЕНТ (FR)

Изобретения относятся к области беспроводных сетей связи, а именно к управлению работой оборудования пользователя в беспроводной сети связи, сконфигурированной для поддержания связи с оборудованием пользователя согласно режиму связи, который использует повторную рассылку сообщений. Техническим результатом является обеспечение возможности реализации участка увеличенного покрытия в пределах сети за счет фиксированных уровней повторений, количество которых соответствует условию радиосвязи, испытываемому в устройстве связи машинного типа, т.е. устройства в более слабых участках покрытия будут выбраны, чтобы принять большее количество повторений, чем те, что на участке сильного покрытия радиосвязи. Для этого осуществляют определение режима модуляции и кодирования, который должен использоваться оборудованием пользователя, идентификацию режима повторения, который должен быть реализован посредством оборудования пользователя в сочетании с режимом модуляции и кодирования, и передачу индикации определенного ...

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20-05-2010 дата публикации

СПОСОБ И УСТРОЙСТВО ДЛЯ ОСУЩЕСТВЛЕНИЯ СВЯЗИ ПО ТЕХНОЛОГИИ ЦИФРОВОЙ АБОНЕНТСКОЙ ЛИНИИ

Номер: RU2008143661A
Принадлежит:

... 1. Способ осуществления связи для цифровой абонентской линии, включающий в себя следующие шаги: ! получение параметра эффективности связи; ! использование первым приемопередатчиком предопределенного правила связи совместно со вторым приемопередатчиком, для осуществлении связи со вторым приемопередатчиком в случае, когда параметр эффективности связи достигает или превышает предопределенное значение. ! 2. Способ по п.1, отличающийся тем, что предопределенное правило связи заранее определяют на первом приемопередатчике или создают в процессе осуществления связи согласно предопределенному способу вычисления правила связи. ! 3. Способ по п.1, отличающийся тем, что шаг получения параметра эффективности связи включает в себя мониторинг параметра эффективности связи, причем параметр эффективности связи включает в себя по меньшей мере один из следующих: отношение сигнал/шум, порог отношения сигнал/шум, частота ошибочных битов. ! 4. Способ по п.3, отличающийся тем, что когда параметр эффективности ...

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28-11-2012 дата публикации

A transceiver operating in a wireless communications network, a system and method for transmission in the network

Номер: GB0201218467D0
Автор:
Принадлежит:

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14-02-2007 дата публикации

Flexible rate split method for mimo transmission

Номер: GB0002422996B
Принадлежит: NOKIA CORP, NOKIA CORPORATION

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15-03-2010 дата публикации

PRECISION MEASURING DEVICE AND PROCEDURE FOR LINE QUALITY REPORT

Номер: AT0000460023T
Принадлежит:

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15-03-2012 дата публикации

NETZWERKSPFADSMETRIKENMESSUNG

Номер: AT0000547865T
Принадлежит:

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15-02-2007 дата публикации

PROCEDURE AND SYSTEM FOR THE ADAPTIVE LANGUAGE BUFFERING

Номер: AT0000353501T
Принадлежит:

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25-10-2007 дата публикации

A method and device for performing communication in digital subscriber line technology

Номер: AU2007240059A1
Автор: SHI QINGQUAN, QINGQUAN SHI
Принадлежит:

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09-11-2006 дата публикации

METHOD FOR CONFIGURING AND MANAGING CHANNELS IN A WIRELESS COMMUNICATION SYSTEM USING AMC CHANNELS AND DIVERSITY CHANNELS, TRANSMISSION/RECEPTION APPARATUS THEREOF, AND SYSTEM THEREOF

Номер: CA0002605845A1
Принадлежит:

ABSTRACT Provided is a method for configuring and managing a channel in a wireless communication system that divides a full frequency band into a plurality of sub-bands. The method comprises selecting at least one sub-band from the plurality of sub-bands and allocating each of Adaptive Modulation and Coding (AMC) channels using the selected at least one sub-band; puncturing sub- carriers of at least one among the AMC channels according to a predetermined pattern; and allocating a diversity channel using the punctured sub-carriers.

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09-10-2007 дата публикации

APPARATUS AND METHOD OF CONTROLLING REVERSE TRANSMISSION IN A MOBILE COMMUNICATION SYSTEM

Номер: CA0002408161C
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A reverse transmission controlling method in a mobile communication system. After receiving forward information commanding a reverse data rate change on a forward channel from a base station, a mobile station increases its reverse data rate to a data rate equal to or lower than a maximum data rate if the forward information commands a reverse data rate increase, determines whether the increased data rate can be further increased for the next frame, and transmits the determination result with information representing the increased data rate to the base station.

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19-09-2013 дата публикации

METHOD AND APPARATUS FOR COORDINATION OF SELF-OPTIMIZATION FUNCTIONS IN A WIRELESS NETWORK

Номер: CA0002866953A1
Автор: CHOU, JOEY, CHOU JOEY
Принадлежит:

A network management device and method for coordination of self- optimization functions in a wireless network. A network management device for coordination of self-optimization functions includes one or more processors and an interface. The interface communicates with a plurality of enhanced node Bs (eNodeBs). The interface is arranged to receive a request to change a coverage or a capacity of an enhanced node B (eNodeB). The interface is further arranged to transmit a query to the eNodeB to obtain a self-optimizing network (SON) coordination state of the eNodeB. The one or more processors are arranged to determine whether to grant or deny the request based on a coordination policy and the SON coordination state.

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30-05-2000 дата публикации

DATA LEVEL SELECTION FOR MULTILEVEL VSB TRANSMISSION SYSTEM

Номер: CA0002186348C

A system for determining the data bits represented by the received symbols of one or more data constellations includes converting the received symbols into multi-bit values (preferably in two's complement form), selecting a number of the most significant bits of each of the multi-bit values and inverting the most significant bit thereof to derive the data bits represented by the respective symbol.

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29-03-2019 дата публикации

Encoding method of Turbo code and decoding method

Номер: CN0109547158A
Автор: WANG YAN
Принадлежит:

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17-10-2007 дата публикации

A method and device for communication in the digital user line technology

Номер: CN0101056342A
Автор: SHI QINGQUAN, QINGQUAN SHI
Принадлежит:

The present invention discloses a method for communication in digital user line techniques. Said method comprises the following steps: obtaining communication performances parameters; a first transmit-receiver device and a second transmit-receiver device performing communications by adopting preconcerted communication rules after the communication performances parameters having reached or exceeding preconcerted values, wherein the preconcerted communication rules are respectively set at the first transmit-receiver device and the second transmit-receiver device. The present invention also discloses a transmit-receiver device for communication in digital user line techniques. According to the present invention, bit tables and gains tables are preconcerted in advance and then stored respectively at the first transmit-receiver device and the second transmit-receiver device. When large broad band noises (such as crosstalk) occur, a quick switching between the bit tables and the gains tables ...

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16-02-2018 дата публикации

PROCEDE ET APPAREIL POUR COORDINATION DE FONCTIONS D'AUTO-OPTIMISATION DANS UN RESEAU SANS FIL

Номер: FR0003055080A1
Автор: CHOU JOEY
Принадлежит: INTEL CORPORATION

La présente invention concerne un dispositif et un procédé de gestion de réseau pour la coordination de fonctions d'auto-optimisation dans un réseau sans fil. Un dispositif de gestion de réseau pour la coordination de fonctions d'auto-optimisation comprend un ou plusieurs processeurs et une interface. L'interface communique avec une pluralité de noeuds B évolués (eNodeB). L'interface est agencée pour recevoir une requête pour changer une couverture ou une capacité d'un noeud B évolué (eNodeB). L'interface est en outre agencée pour transmettre une interrogation à l'eNodeB pour obtenir un état de coordination de réseau d'auto-optimisation (SON) de l'eNodeB. Le ou les processeurs sont agencés pour déterminer s'il faut accorder ou refuser la requête sur la base d'une politique de coordination et de l'état de coordination SON.

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05-07-2010 дата публикации

MEAN SQUARE ESTIMATION OF CHANNEL QUALITY MEASURE

Номер: KR0100967325B1
Автор:
Принадлежит:

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24-03-2010 дата публикации

IMAGE DATA DISTRIBUTION SYSTEM, DEVICE, AND METHOD

Номер: KR0100949402B1
Автор:
Принадлежит:

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17-08-2011 дата публикации

RADIO COMMUNICATION SYSTEM, BASE STATION, MOBILE STATION, RADIO COMMUNICATION METHOD

Номер: KR1020110092331A
Автор:
Принадлежит:

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31-10-2017 дата публикации

광 트랜시버의 원격 디지털 진단 모니터링 정보의 향상된 송신 및 수신

Номер: KR1020170120650A
Принадлежит:

... 광 통신 방법 및 장치가 제공된다. 예로서, 광 트랜시버는, 메모리에 결합된 처리 디바이스, 광 서브어셈블리, 및 프로그래밍 가능한 디바이스를 포함한다. 상기 광 서브어셈블리는, 광 링크를 통해 원격 광 트랜시버로 송신하기 위한 고속 사용자 데이터를 운반하는 제1 신호를 수신하고 변조하도록 구성된다. 상기 프로그래밍 가능한 디바이스는 상기 처리 디바이스에 결합되고, 상기 처리 디바이스로부터 상기 광 트랜시버의 디지털 진단 모니터링 정보(DDMI)와 관련된 데이터를 수신하고, 상기 DDMI 데이터에 순방향 에러 정정 인코딩을 수행하여 원격 디지털 진단 모니터링(RDDM) 신호를 생성하고, 상기 RDDM 신호를, 송신을 위해 변조하기 위해 제2 신호로서 상기 광 서브어셈블리로 송신하도록 구성된다. 상기 광 서브어셈블리는 상기 제2 신호를 상기 제1 신호 상에 전류 변조하여 상기 원격 디바이스로 송신하기 위한 이중 변조된 광 신호를 생성하도록 구성된다.

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14-01-2010 дата публикации

CONTROL CHANNEL COMMUNICATIONS IN A CELLULAR COMMUNICATIONS NETWORK

Номер: KR1020100005232A
Принадлежит:

A communications device in the form of a base station or communications node such as an eNodeB communications node selects one of a plurality of modulation and coding schemes for a control channel for a user communications device on the basis of the range which is specified by the location or channel condition within a cell of the user communications device. The selected modulation and coding scheme are identified to the user communications device separately from the control channel. In one example, the selected modulation and coding scheme is identified to the user communications device by way of a 2-bit code which may be provided within a MAC control block or appended to a MAC Data PDU. COPYRIGHT KIPO & WIPO 2010 ...

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06-11-2017 дата публикации

무선 네트워크에서 자기-최적화 기능들의 조정을 위한 방법 및 장치

Номер: KR1020170122853A
Автор: 초우, 조이
Принадлежит:

... 무선 네트워크에서 자기-최적화 기능들의 조정을 위한 네트워크 관리 장치 및 방법. 자기-최적화 기능들의 조정을 위한 네트워크 관리 장치는 하나 이상의 프로세서 및 인터페이스를 포함한다. 인터페이스는 복수의 eNodeB(enhanced node B)들과 통신한다. 인터페이스는 eNodeB(enhanced node B)의 커버리지 또는 용량을 변경해달라는 요청을 수신하도록 구성되어 있다. 인터페이스는 추가로 eNodeB의 자기-최적화 네트워크(SON) 조정 상태를 얻기 위해 eNodeB에 문의를 송신하도록 구성되어 있다. 하나 이상의 프로세서는 조정 정책 및 SON 조정 상태에 기초하여 요청을 승인할지 거부할지를 결정하도록 구성되어 있다.

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21-11-2013 дата публикации

COGNITIVE USE OF MULTIPLE REGULATORY DOMAINS

Номер: KR1020130126926A
Автор:
Принадлежит:

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18-01-2022 дата публикации

Control field for resource request with multiple formats

Номер: US0011228391B2
Принадлежит: NXP USA, INC.

A first communication device determines an amount of data queued at the first communication device for transmission. When a control field is to be generated according to a first format, the first communication device determines a scaling value (SV) and an unscaled value (UV) corresponding to the determined amount of data queued for transmission such that a result of SV multiplied by BV indicates the determined amount of data queued for transmission, and generates the control field to include i) a scaling factor subfield set to indicate the SV, and ii) an unscaled queue size subfield set to indicate the BV. When the control field is to be generated according to a second format, the first communication generates the control field to include a queue size subfield set to indicate the determined amount of data queued for transmission and such that the control field does not include the scaling factor subfield.

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05-04-2011 дата публикации

System and method of dynamically optimizing a transmission mode of wirelessly transmitted information

Номер: US0007920483B2
Принадлежит: Intel Corporation, INTEL CORP, INTEL CORPORATION

The present invention includes a method of optimizing a transmission mode of wirelessly transmitted data. The method includes selecting a first transmission mode based on a predetermined channel database and a first channel characterization. The first channel characterization can be based upon signals transmitted in an initial mode. An error factor is generated based on a difference between an estimated performance characteristic, and an expected performance characteristic. A subsequent transmission mode is selected based upon the predetermined channel database, the error factor and a subsequent channel characterization. The predetermined channel database can include a predetermined look-up-table that provides transmission mode selections based upon the channel characterizations. The look-up-table generally includes a plurality of quality parameter thresholds that determine the selection of a transmission mode. Another method includes receiving transmission signals that include data encoded ...

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03-09-2009 дата публикации

Information Encoding for a Backward Channel

Номер: US2009219865A1
Принадлежит:

The invention relates to an information encoding method for the backward channel of a base station (BS) of a mobile radio system. The base station (BS) comprises M resources and periodically emits (t), toward user terminals (UT), pilot signals enabling, via the latter, the measurement of quality of transmission of resources values (I). The storage (A) of at least one quality of reception of resources value ensues and the transformation (B) of each quality of reception of resources value (II) ensues by quantization into a quantized index value representative of the quality of reception value and constitutive of a metrix relative to each resource. The invention is for use in SDMA and/or OFDMA.

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03-12-2019 дата публикации

Data transmission method and apparatus

Номер: US0010498491B2

Embodiments of this application provide a data transmission method and apparatus. The method includes: receiving indication information indicating a data distribution manner selected from a first data distribution manner and a second data distribution manner; performing data transmission with the network device according to the data distribution manner indicated by the indication information; wherein the data distribution manner indicating a distribution of modulation symbols of a code block (CB) on one or more orthogonal frequency division multiplexing (OFDM) symbols of at least one resource unit, the one or more OFDM symbols are consecutive in time-domain; and wherein modulation symbols distributed on a same OFDM symbol of the one or more OFDM symbols are interleaved in frequency-domain according to the first data distribution manner and are not interleaved in the frequency-domain according to the second data distribution manner.

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13-05-2010 дата публикации

CONTROL CHANNEL COMMUNICATIONS IN A CELLULAR COMMUNICATIONS NETWORK

Номер: US20100120423A1
Принадлежит:

A communications device in the form of a base station or communications node such as an eNodeB communications node selects one of a plurality of modulation and coding schemes for a control channel for a user communications device on the basis of the range which is specified by the location or channel condition within a cell of the user communications device. The selected modulation and coding scheme are identified to the user communications device separately from the control channel. In one example, the selected modulation and coding scheme is identified to the user communications device by way of a 2-bit code which may be provided within a MAC control block or appended to a MAC Data PDU.

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25-02-2016 дата публикации

APPARATUS AND METHODS FOR CONTROLLING TRANSMIT POWER OF A WIRELESS COMMUNICATION SYSTEM

Номер: US20160056917A1
Принадлежит:

Apparatus and methods for power control in mobile communication devices are provided. In one aspect, a wireless communication device includes a transmit chain that receives a digital in-phase (I) signal and a digital quadrature-phase (Q) signal and that generates a transmit signal. The wireless communication device further includes a power amplifier that amplifies the transmit signal, and a transmit chain controller including a reference generator that combines the digital I signal and the digital Q signal and generates a reference signal corresponding to an instantaneous value of an envelope of the combined signal. The transmit chain controller further includes an error extractor that generates an error signal based on the reference signal and an output power of the power amplifier, and a control signal generator that uses the error signal to generate one or more power control signals for controlling an adjustable power level of the transmit chain. 1. A wireless communication system comprising:a transmit chain that receives a digital in-phase (I) signal and a digital quadrature-phase (Q) signal and that generates a transmit signal, the transmit chain having an adjustable power level controlled by one or more power control signals;a power amplifier that amplifies the transmit signal; anda transmit chain controller including a reference generator that combines the digital I signal and the digital Q signal and generates a reference signal corresponding to an instantaneous value of an envelope of the combined digital I signal and digital Q signal, the transmit chain controller further including an error extractor that generates an error signal based on the reference signal and an output power of the power amplifier, and a control signal generator that generates the one or more power control signals based on the error signal.2. The wireless communication system of wherein the transmit chain controller is operable to control a transmit power of the wireless communication ...

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12-10-2017 дата публикации

FILTERED ORTHOGONAL BINARY PHASE SHIFT KEYING MODULATION WITH LOW PEAK-TO-AVERAGE-POWER RATIO

Номер: US20170295047A1
Принадлежит:

Methods, systems, and devices for wireless communications are described. A transmitting device may modulate a first binary sequence using binary phase shift keying on a first axis of a complex plane. The device may modulate a second binary sequence using binary phase shift keying on a second plane of a complex axis. The first axis and the second axis may be orthogonal. The device may transmit the first binary sequence and the second binary sequence according to the modulation of the first binary sequence and the second binary sequence.

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05-10-2023 дата публикации

ORTHOGONAL FREQUENCY SCHEME FOR NARROWBAND ACOUSTIC SIGNALING

Номер: US20230318889A1
Автор: Wilfred Edwin Booij
Принадлежит: Sonitor Technologies AS

A transmitter is disclosed. The transmitter includes a clock configured to generate one or more output clock signals. The transmitter further includes at least one frequency divider configured to generate a plurality of divided frequencies based on the one or more output clock signals, and a modulator. The transmitter also includes at least one antenna or transducer configured to transmit modulated data. The transmitter includes a memory configured to store instructions, and at least one processor configured to execute instructions performing operations including mapping data to a decimal code value of a plurality of decimal code values, converting the decimal code value to a shrinking base system, and selecting a set of frequencies among the plurality of divided frequencies based on the code value corresponding to the shrinking base system for the decimal code value. The modulator may be configured to modulate the decimal code value using the set of frequencies.

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06-08-2014 дата публикации

TRANSMISSION OF DATA WITHIN A COMMUNICATIONS NETWORK

Номер: EP1419667B1
Принадлежит: Core Wireless Licensing S.à.r.l.

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19-10-2005 дата публикации

LINE QUALITY REPORT ACCURACY MEASUREMENT DEVICE AND ACCURACY MEASUREMENT METHOD

Номер: EP0001587233A1
Принадлежит:

A channel quality report accuracy measurement apparatus and accuracy measurement method are provided that correctly measure the accuracy of channel quality reported from a communication apparatus. A scheme control section (140) stores coding rates and modulation schemes corresponding to CQIs, and specifies the transmission scheme corresponding to a fixed CQI reported from a CQI statistical processing section (230). A CQI decoding section (220) decodes a reported CQI contained in a received signal. The CQI statistical processing section (230) performs statistical processing of reported CQIs corresponding to test data transmitted prior to an accuracy measurement test, and reports the most frequently reported CQI to the scheme control section (140) as a fixed CQI. A PER calculation section (260) calculates the PER in the communication apparatus from the reported CQI and Ack/Nack corresponding to test data transmitted in accordance with the fixed CQI. A determination section (270) performs ...

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20-06-2017 дата публикации

СПОСОБ ОБРАБОТКИ ИНФОРМАЦИИ О СОСТОЯНИИ КАНАЛА, БАЗОВАЯ СТАНЦИЯ И ТЕРМИНАЛ

Номер: RU2622864C2
Принадлежит: ЗетТиИ Корпорейшн (CN)

Изобретение относится к способу обработки информации о состоянии канала (CSI). Технический результат изобретения заключается в реализации гибких процессов конфигурирования и возврата информации о состоянии канала, позволяющих эффективно сократить объем служебных данных обратной связи в восходящем канале и уменьшить вероятность возможного конфликта при формировании информации обратной связи. Способ обработки информации о состоянии канала включает: конфигурирование базовой станцией для терминала множества процессов CSI, каждый из которых содержит информацию части измерений канала и информацию части измерений помех; если базовая станция конфигурирует соответствующие эталонные процессы CSI для некоторых или всех процессов CSI, то ограничение индикатора ранга (RI) процессов CSI для вычисления отчета о CSI выбирается таким образом, чтобы он был совместим с RI эталонных процессов CSI, путем конфигурирования эталонных процессов CSI; и для процессов CSI, сконфигурированных с использованием эталонных ...

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12-05-2017 дата публикации

СПОСОБ, УСТРОЙСТВО И СИСТЕМА АДАПТАЦИИ РАНГА ВОСХОДЯЩЕЙ ЛИНИИ СВЯЗИ

Номер: RU2619201C2

Изобретение относится к способу адаптации ранга восходящей линии связи пользовательского оборудования. Технический результат заключается в обеспечении возможности пользовательскому оборудованию гибко изменять ранг для передачи по восходящей линии связи. Способ содержит этапы, на которых: принимают из базовой станции ранг для передачи по восходящей линии связи; и изменяют ранг для передачи по восходящей линии связи, основываясь на одном или более предварительно определенных порогов, при этом один или более предварительно определенных порогов содержат один или более предварительно определенных порогов буферизованных данных в буфере передачи, доступного запаса мощности восходящей линии связи или предоставления передачи по восходящей линии связи пользовательского оборудования. 3 з.п. ф-лы, 5 ил.

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20-02-2018 дата публикации

ПЛАНИРОВЩИК ВНУТРИ QCI И СПОСОБ ПЛАНИРОВАНИЯ ВНУТРИ QCI В СЕТИ БЕСПРОВОДНОГО ДОСТУПА

Номер: RU2645303C1
Принадлежит: ИНТЕЛ КОРПОРЕЙШН (US)

Изобретение относится к сетям беспроводного доступа. Технический результат заключается в повышении поддержки уровня качества обслуживания (QOS). Заявлен способ планирования, реализуемый планировщиком MAC (150) в eNodeB (104), содержащий этапы, на которых планируют пакеты для передачи по нисходящему каналу на пользовательское устройство (102) на основе идентификатора класса качества обслуживания (QoS) (QCI) и показателя классификации приоритета потока данных; конфигурируют указанный eNodeB (104) для передачи указанных запланированных пакетов посредством радионесущих на указанное пользовательское устройство (102); при этом показатель классификации приоритета потока данных указывает приоритет планирования для пакетов, имеющих одинаковый QCI во время ситуаций перегрузки, а указанное планирование пакетов данных осуществляется на основе указанного QCI без использования показателя классификации приоритета потока данных, когда отсутствует ситуация перегрузки и на основе указанного QCI и показателя ...

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16-01-2019 дата публикации

ЗОНДИРОВАНИЕ ПОВЫШЕННЫХ ХАРАКТЕРИСТИК ПРИ НАДЕЖНОЙ СВЯЗИ С НИЗКОЙ ЗАДЕРЖКОЙ

Номер: RU2677369C1

Изобретение относится к области вычислительной техники. Технический результат заключается в эффективном использовании ресурсов. Способ содержит этапы, на которых: передают первый транспортный блок с использованием набора свойств транспортной передачи на приемный узел; передают зондирующий блок на приемный узел с использованием набора свойств зондирующей передачи, причем зондирующий блок содержит данные полезной нагрузки, также содержащиеся в указанном транспортном блоке; реконфигурируют набор свойств транспортной передачи для дополнительных транспортных блоков на основании информации, переданной приемным узлом и указывающей на успешное декодирование зондирующего блока приемным узлом. 3 н. и 12 з.п. ф-лы, 15 ил., 2 табл.

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20-05-2010 дата публикации

СПОСОБ УПРАВЛЕНИЯ СКОРОСТЬЮ ПЕРЕДАЧИ, МОБИЛЬНАЯ СТАНЦИЯ И КОНТРОЛЛЕР РАДИОСЕТИ

Номер: RU2008144375A
Принадлежит:

... 1. Способ управления скоростью передачи для управления в мобильной станции скоростью передачи пользовательских данных восходящей линии связи на основании значения первой скорости передачи пользовательских данных восходящей линии связи, принятого по первому каналу управления скоростью передачи, которое передается с использованием первого идентификатора для мобильной станции, или значения второй скорости передачи пользовательских данных восходящей линии связи, принятого по второму каналу управления скоростью передачи, которое передается с использованием второго идентификатора для мобильной станции, содержащий этапы, на которых: ! сохраняют в мобильной станции значение второй скорости передачи пользовательских данных восходящей линии связи, принятое по второму каналу управления скоростью передачи, и ! удаляют из мобильной станции сохраненное значение второй скорости передачи пользовательских данных восходящей линии связи при смене обслуживающей соты для мобильной станции. ! 2. Способ управления ...

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20-11-2007 дата публикации

СПОСОБ УПРАВЛЕНИЯ СКОРОСТЬЮ ПЕРЕДАЧИ И МОБИЛЬНАЯ СТАНЦИЯ

Номер: RU2006114655A
Принадлежит:

... 1. Способ управления скоростью передачи, заключающийся в том, что передают из базовой радиостанции в мобильную станцию канал предоставления относительной скорости, который включает в себя команду для управления скоростью передачи в восходящей линии связи; и определяют в мобильной станции, что канал предоставления относительной скорости, который включает в себя команду Поддержания для указания о поддержании скорости передачи, принимают в мобильной станции, когда данные, подлежащие передаче, исчерпаны в буфере передачи, и сигнал приема в канале предоставления относительной скорости определен как "0" или "+1", и поддерживают скорость передачи. 2. Мобильная станция, содержащая блок приема, выполненный с возможностью приема из базовой радиостанции канала предоставления относительной скорости, который включает в себя команду для управления скоростью передачи в восходящей линии связи; и блок управления передачей, выполненный с возможностью определения, что канал предоставления относительной скорости ...

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27-08-2015 дата публикации

СПОСОБ, УСТРОЙСТВО И СИСТЕМА АДАПТАЦИИ РАНГА ВОСХОДЯЩЕЙ ЛИНИИ СВЯЗИ

Номер: RU2014105572A
Принадлежит:

... 1. Способ адаптации ранга восходящей линии связи, содержащий этапы, на которых:оценивают максимальную поддерживаемую скорость передачи данных и информацию канала пользовательского оборудования при передаче по восходящей линии связи;сравнивают максимальную поддерживаемую скорость передачи данных с одним или более предварительно определенных порогов, причем предварительно определенные пороги связаны с соответствующими рангами; иопределяют ранг, используемый пользовательским оборудованием при передаче по восходящей линии связи, основываясь на результате сравнения и оцененной информации канала.2. Способ по п. 1, в котором оценка максимальной поддерживаемой скорости передачи данных содержит оценку максимальной поддерживаемой скорости передачи данных, основанную на оценке запаса мощности восходящей линии связи, статуса буфера передачи и предоставления передачи по восходящей линии связи пользовательского оборудования.3. Способ по п. 2, в котором оценка запаса мощности восходящей линии связи пользовательского ...

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20-04-2016 дата публикации

ОПРЕДЕЛЕНИЕ РАЗМЕРА ШИФРОВАЛЬНОЙ КНИГИ HARQ/ACK

Номер: RU2014139406A
Принадлежит:

... 1. Устройство, содержащее:модуль приемопередатчика, выполненный с возможностью связи посредством множества обслуживающих сот, при этом по меньшей мере две обслуживающие соты имеют различные конфигурации дуплексного канала восходящей-нисходящей связи (UL-DL) с разделением по времени (TDD); иконтроллер обратной связи, соединенный с модулем приемопередатчика и выполнен с возможностью:получения индекса назначения нисходящего канала (DAI);определения количества нисходящих субкадров в пределах пакетного окна первой обслуживающей соты из множества обслуживающих сот, в котором нисходящие субкадры пакетного окна ассоциированы с восходящим субкадром для передачи соответствующей информации гибридного автоматического запроса повторения-подтверждения (HARQ-ACK); иопределения количества битов HARQ-ACK, соответствующих первой обслуживающей соте, доступных на физическом восходящем канале совместного использования (PUSCH) восходящего субкадра, основываясь на DAI и определенном количестве нисходящих субкадров ...

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17-03-2016 дата публикации

Bandbreitensteuerung bei drahtloser Kommunikation

Номер: DE112013007177T5

Es wird allgemein eine Technik für ein Bandbreitensteuerschema beschrieben. Bei einigen Beispielen kann ein Sendergerät, das konfiguriert ist, um Information über eine drahtlose Verbindung zu senden, beinhalten: einen Basisbandsignalprozessor, der konfiguriert ist, um die Information zu verarbeiten, um ein Basisbandsignal mit einer Basisband-Bandbreite zu erzeugen; einen Modulator, der konfiguriert ist, um ein Hochfrequenzsignal (HF-Signal) mit einer HF-Bandbreite basierend auf dem Basisbandsignal zu modulieren; und eine Steuereinrichtung, die konfiguriert ist, um die Basisband-Bandbreite und/oder die HF-Bandbreite basierend auf einer Bewegung des Sendergeräts relativ zu einer Position eines Empfängergeräts anzupassen, das konfiguriert ist, um das HF-Signal zu empfangen.

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09-01-2020 дата публикации

DATENSAMMLUNGSSYSTEM, DATENSAMMLUNGSVERFAHREN UND STEUERUNG

Номер: DE102019208603A1
Принадлежит:

Um ein Datensammlungssystem, ein Datensammlungsverfahren und eine Steuerung bereitzustellen, die zum Senden von Messdaten mit angemessenem Timing in der Lage sind, während die Belastung einer Steuerung und eines Netzwerks reduziert wird. Eine Steuerung 10 umfasst: eine Datenerfassungseinheit 11, die Messdaten über eine Maschine in chronologischer Reihenfolge erfasst; eine Timing-Steuereinheit 13, welche die Messdaten puffert und das Timing des Sendens der Messdaten an einen Server 20 steuert, basierend auf einer Sendebedingung; eine Datensendeeinheit 14, wobei in Reaktion auf die Anweisung durch die Timing-Steuereinheit 13 die Datensendeeinheit 14 die Messdaten an den Server 20 sendet, die gepuffert worden sind, bis die Anweisung gegeben wird; und eine Sendebedingungs-Erfassungseinheit 15, welche die durch den Server 20 entschiedene Sendebedingung empfängt, in Reaktion auf einen Grad von Zustandsabnormalität, die während der Steuerung auftritt, bestimmt basierend auf den gesendeten Messdaten ...

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03-10-2018 дата публикации

Method and apparatus for transmitting signals over wire connections

Номер: GB0002561010A
Принадлежит:

A method and apparatus to transmit data over different channels from a transmitter 16, such as a DSLAM, to one or more receivers 51-53, each of which is connected via a respective wire connection 21-23. For each channel steps (i) to (iii) are iteratively performed until one or more criteria are satisfied and a transmission power determined for that channel. Step (i) comprises, determining values of a function depending on one or more channel attributes selected from: a number of different tones, a frequency spacing of adjacent tones, a maximum transmission power and a channel gain of the channel. Step (ii) comprises, using the determined value of the function of step (i) to determine a transmission power. Step (iii) comprises determining whether or not the determined transmission powers satisfy one or more criteria; and thereafter transmitting data at the current transmission powers. The tones referred to at step (i) may be discrete multi-tones (DMT) as used in Digital Subscriber Line Systems ...

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17-05-2017 дата публикации

Method and apparatus for transmitting signals over wire connections

Номер: GB0201705285D0
Автор:
Принадлежит:

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03-10-2018 дата публикации

Method and apparatus for transmitting signals over wire connections

Номер: GB0002561005A
Принадлежит:

A method and apparatus to transmit data over different channels from a transmitter 16, such as a DSLAM, to one or more receivers 51-53, each of which is connected via a respective wire connection 21-23. For each channel: (i) determine a value that is a function of a power mask, (ii) determine a value that is a function of an upper bound for a channel capacity, (iii) apply a third function to the values previously obtained at (i) and (ii) to determine a value for the transmission power of the channel. The function of (i) may additionally be a function of the ratio of the power coupling coefficient to a noise level on the channel. The method may be used for DSL configurations that utilise direct transmission channels over twisted metallic pairs (TMP) and indirect phantom channels that use different combinations of TMPs. The method provides a fast converging water-filling algorithm for performing equalisation on the communication channels. Transmission of data is optimised and the power budget ...

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15-09-2008 дата публикации

PROCEDURE AND DEVICE FOR THE CONNECTING ADJUSTMENT

Номер: AT0000406010T
Автор: MALM PETER, MALM, PETER
Принадлежит:

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15-01-2012 дата публикации

CONTROL PATH COMMUNICATION IN A MOBILE COMMUNICATIONS NETWORK

Номер: AT0000539510T
Принадлежит:

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15-01-2012 дата публикации

DATA BLOCK LENGTH-ADAPTIVE CONTROL OF THE CONNECTING QUALITY

Номер: AT0000538549T
Принадлежит:

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15-04-2009 дата публикации

KNOT B AND RNC ACTIONS PROTECTING ANDERUNG ONE OF THE SUPPLYING HSDPA CELL

Номер: AT0000426954T
Принадлежит:

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27-09-2018 дата публикации

DATA TRANSMISSION METHOD AND APPARATUS

Номер: CA0003049322A1
Принадлежит: SMART & BIGGAR

Provided are a method and apparatus for carrying out data transmission. The method comprises: a network device 110 determining, according to a service requirement or an application scenario of a terminal device, a data distribution manner for carrying out data transmission with the terminal device, wherein the data distribution manner is used for indicating a distribution condition of data of the same code block on at least one time domain symbol; and the network device 110 carrying out, according the data distribution manner, data transmission with the terminal device. By means of the method and apparatus for carrying out data transmission in the embodiment of the present application, the data distribution manner for carrying out the data transmission between the network device 110 and the terminal device can be flexibly configured, so as to satisfy different service requirements.

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01-04-2004 дата публикации

MEAN SQUARE ESTIMATION OF CHANNEL QUALITY MEASURE

Номер: CA0002497413A1
Автор: HOLTZMAN, JACK M.
Принадлежит:

Methods and apparatus for improving the feedback of channel information to a serving base station, which provides accuracy and reliability of such information. The process determines the received link quality indicators using historical information of the previously received indicators. The method may be applied to full link quality indicators, differential indicators, and/or a combination of both.

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25-03-2010 дата публикации

SPATIAL MULTIPLEXING COMMUNICATION SYSTEM WITH ENHANCED CODEWORD MAPPING WITH FLEXIBLE RATE SELECTION ON EACH SPATIAL LAYER AND WITH SINGLE HARQ PROCESS

Номер: CA0002737418A1
Принадлежит:

A transmission scheme for spatial multiplexing MIMO systems allows use of SIC at the receiver with a single HARQ process or multiple HARQ processes. Error detection bits are added to an information block to generate and transport block (TDB) for a single HARQ instance having information bits and error detection bits. The transport block is then divided into two or more parts referred to herein as sub-blocks. Each sub-block is encoded according to a different modulation and coding scheme (MCS). The sub-blocks are combined to form two or more codewords for transmission to a receiving station.

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19-09-2013 дата публикации

SCHEDULING TIMING DESIGN FOR A TDD SYSTEM

Номер: CA0002861503A1
Принадлежит:

Disclosed is a method of transmitting, from an enhanced Node B (eNB), an indication of an uplink/downlink (UL-DL) subframe configuration of a scheduling cell and a scheduled cell in a wireless time-division duplex (TDD) system. Embodiments include identifying the type of the UL-DL subframe configuration of the scheduling cell and determining a UL-DL subframe configuration to use for UL resource allocation of the scheduled cell. Other embodiments include identifying a reference UL-DL subframe configuration to use for UL resource allocation of the scheduled cell.

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02-04-2015 дата публикации

DATA PROCESSING DEVICE AND DATA PROCESSING METHOD

Номер: CA0002924781A1
Принадлежит:

This technology pertains to a data processing device and a data processing method that make it possible to ensure good communication quality when using an LDPC code to transmit data. In group-wise interleaving, an LDPC code having a code length of 16,200 bits and a code rate of 6/15, 7/15, 8/15, or 9/15 is interleaved on a per-bit-group basis, each bit group being 360 bits long. In group-wise deinterleaving, the interleaved LDPC code is restored to the original ordering thereof. This technology can be applied, for example, to data transmission or the like using an LDPC code.

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19-09-2013 дата публикации

HARQ/ACK CODEBOOK SIZE DETERMINATION

Номер: CA0002866352A1
Принадлежит:

Embodiments of the present disclosure describe devices, methods, computer-readable media and systems configurations for determining a hybrid automatic repeat request (HARQ)-acknowledgment (ACK) codebook in wireless communication networks.

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06-09-2013 дата публикации

METHOD AND A DEVICE FOR INCREASING THE AMOUNT OF INFORMATION BITS COMPRISED IN A SYMBOL

Номер: CA0002865198A1
Принадлежит:

The present invention concerns a method for increasing the amount of information bits comprised in a symbol transferred by a source to at least one receiver, the symbol being representative of a modulated base sequence obtained by encoding a sequence of base bits selected by the source and by modulating the encoded selected sequence, the modulated base sequence having fixed points. The source : - encodes the selected sequence of base bits and a sequence of supplementary bits, - obtains a modulated base sequence by modulating the encoded selected sequence of base bits, - obtains a modulated altering sequence by modulating the sequence of supplementary bits, - alters the modulated base sequence by modifying at least a part of the values of its fixed points using the modulated altering sequence in order to obtain a modulated altered sequence, - transfers the modulated altered sequence under the form of an altered symbol.

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19-09-2013 дата публикации

INTRA-QCI SCHEDULER AND METHOD FOR INTRA-QCI SCHEDULING IN A WIRELESS ACCESS NETWORK

Номер: CA0002867017A1
Принадлежит:

Embodiments of an intra-QCI scheduler and method for assisted intra-QCI scheduling are generally described herein for operating within a wireless access network in which data flows are mapped to bearers using quality-of-service (QoS) class identifiers (QCIs). In some embodiments, the intra-QCI scheduler may classify packets of one or more data flows having a same QCI with a sub-QCI based on intra-QCI classification information received from user equipment (UE). The sub-QCI may indicate a scheduling priority for packets of data flows having the same QCI. The intra-QCI scheduler may schedule packets for downlink transmission over a radio bearer between the eNodeB and the UE based on the sub-QCI. The use of sub-QCIs allows the eNodeB to provide QoS support for data flows of applications that have been mapped to a default bearer.

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20-01-2016 дата публикации

Self-adaptive adjustment of the transmission level of the data of the base station and method

Номер: CN0102299781B
Автор:
Принадлежит:

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19-04-2019 дата публикации

With error correction of the consumption meter

Номер: CN0105765991B
Автор:
Принадлежит:

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18-09-2017 дата публикации

방송 송신 장치, 방송 송신 장치의 데이터 처리 방법, 방송 수신 장치 및 방송 수신 장치의 데이터 처리 방법

Номер: KR0101779434B1
Принадлежит: 엘지전자 주식회사

... 방송 송신 장치 및 방송 송신 장치의 데이터 처리 방법이 개시된다. 본 발명의 일 실시 예에 따른 방송 송신 장치의 데이터 처리 방법은 긴급 경보 정보를 링크 계층 패킷으로 인캡슐레이션하는 단계, 상기 링크 계층 패킷의 데이터에 대해 물리 계층에서 에러 정정 인코딩을 수행하는 단계, 상기 에러 정정 인코드된 데이터를 포함하는 신호 프레임을 빌딩하는 단계, 및 상기 빌트된 신호 프레임을 포함하는 방송 신호를 전송하는 단계를 포함한다. 여기서 상기 링크 계층 패킷은 헤더와 페이로드로 구성되고, 상기 헤더는 상기 페이로드를 시그널링하는 헤더 정보를 포함하고, 상기 페이로드는 상기 긴급 경보 정보를 포함하며, 상기 헤더 정보는 상기 링크 계층 패킷이 긴급 경보를 위한 패킷임을 지시하는 지시 정보와 상기 긴급 경보 정보의 타입을 지시하는 타입 정보를 포함한다.

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29-11-2016 дата публикации

무선 네트워크에서 자기-최적화 기능들의 조정을 위한 방법 및 장치

Номер: KR1020160136457A
Автор: 초우, 조이
Принадлежит:

... 무선 네트워크에서 자기-최적화 기능들의 조정을 위한 네트워크 관리 장치 및 방법. 자기-최적화 기능들의 조정을 위한 네트워크 관리 장치는 하나 이상의 프로세서 및 인터페이스를 포함한다. 인터페이스는 복수의 eNodeB(enhanced node B)들과 통신한다. 인터페이스는 eNodeB(enhanced node B)의 커버리지 또는 용량을 변경해달라는 요청을 수신하도록 구성되어 있다. 인터페이스는 추가로 eNodeB의 자기-최적화 네트워크(SON) 조정 상태를 얻기 위해 eNodeB에 문의를 송신하도록 구성되어 있다. 하나 이상의 프로세서는 조정 정책 및 SON 조정 상태에 기초하여 요청을 승인할지 거부할지를 결정하도록 구성되어 있다.

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16-02-2007 дата публикации

Methods and apparatus for combining and/or transmitting multiple symbol streams

Номер: TW0200708002A
Принадлежит:

A stream of modulation symbols from a zero symbol rate (ZSR) coding/modulation module and a stream of modulation symbols from another type of coding/modulation module are input into an interweaver module. The interweaver module mixes the two input streams when assigning modulation symbols to be communicated in a segment. If a ZSR modulation symbol is non-zero, the ZSR modulation symbol is allocated a transmission position. If the ZSR modulation symbol is a zero modulation symbol, the modulation symbol from the other coding/modulation module is allocated the transmission position. The non-zero modulation symbols from the ZSR module are higher in power than the non-zero modulation symbols from the other module, thus facilitating detection and recovery.

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08-03-2012 дата публикации

METHODS AND APPARATUS OF FREQUENCY INTERLEAVING FOR 80 MHz TRANSMISSIONS

Номер: WO2012031139A1
Принадлежит:

Certain aspects of the present disclosure provide techniques and apparatus for frequency interleaving for use with 80 MHz transmissions, such as those in the IEEE 802.11ac amendment to the IEEE 802.11 standard. According to certain aspects, frequency interleaving spatial streams for transmissions on channels having widths of about 80 MHz may comprise using an interleaving depth of 26. The number of frequency rotations may be 58 (or 29) for up to four (or up to eight) spatial streams. According to certain aspects, frequency interleaving up to eight (or up to four) spatial streams for transmission on channels having widths of about 80 MHz may comprise performing frequency rotation for each of the spatial streams based on a frequency rotation index = [0 4 2 6 1 5 3 7] (or = [0 2 1 3]).

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28-02-2008 дата публикации

RADIO COMMUNICATION APPARATUS AND RADIO COMMUNICATION METHOD

Номер: WO000002008023643A1
Принадлежит:

A radio communication apparatus has a scheduler for allocating one or more resource blocks included in the system band to a user device, an interleaver for rearranging the order of bits in a bit sequence according to an instructed pattern, a means for creating transmission symbols including the bit sequence after the interleave, and an interleave pattern determining means for determining the range of the bit sequence to be rearranged on the basis of the number of resource blocks, a data modulation system, and a channel coding rate, determining the pattern of the rearrangement corresponding to the range, and instructing the determined pattern to the interleaver.

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23-10-2003 дата публикации

NODE B AND RNC ACTIONS DURING A SERVING HSDPA CELL CHANGE

Номер: WO2003088545A3
Принадлежит:

A wireless system and method which suspends data transmission to a node (14) after recognizing a need for a cell change (12), uses scheduling with priority and latency factors (18), and applies modulation and coding based upon a mobile’s feedback (20).

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29-12-2010 дата публикации

METHOD FOR DETERMINING A MODULATION AND CODING SCHEME IN A BROADBAND WIRELESS ACCESS SYSTEM

Номер: WO2010151066A3
Принадлежит:

The present invention relates to a broadband wireless access system, and more particularly, to a method in which a terminal determines a modulation and coding scheme (MCS) of uplink allocation information received from a base station under a condition such as that of a random access process in which both the terminal and the base station do not know each other's channel state. According to one exemplary embodiment of the present invention, a method in which the terminal transmits specific data to the base station under the condition in which the base station does not know the channel state of the terminal, comprises: a step of receiving, from the base station, uplink allocation information for indicating an uplink resource for transmitting the specific data; a step of determining a modulation and coding scheme (MCS) to be applied to the specific data using information on the size and allocation size of the specific data; and a step of transmitting, to the base station via the uplink resource ...

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14-09-2006 дата публикации

TRANSMISSION METHODS AND APPARATUS COMBINING PULSE MODULATION AND HIERARCHICAL MODULATION

Номер: WO2006096678A1
Принадлежит:

A device includes a zero symbol rate (ZSR) coding/modulation module and a second type coding/modulation module. Both modules generate modulation symbols to be conveyed using the same air link resources but with the non-zero ZSR symbols having a higher power level. The ZSR module generates a mixture of zero and non-zero modulation symbols. A ZSR modulation scheme communicates information using both the position of the non-zero modulation symbols and the phase and/or amplitude of the non-zero modulation symbols. Different ZSR schemes, implementing different ratios relating the number of zero symbols to the total number of symbols, can be associated with different low data rates while second module modulation schemes can be associated with different high data rates. Modulation symbols from two modules are in some embodiments, superimposed. In some embodiments, non-zero ZSR modulation symbols punch out second module modulation symbols which occupy the same air link resource, an hybrid system ...

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01-01-2013 дата публикации

Base station and method

Номер: US0008345706B2

A base station (eNodeB) performing a radio communication with a user equipment (UE) includes: a transmission format determining unit (16) configured to determine a transmission format of a downlink data channel not to be associated by a control channel, based on a downlink reception signal quality measured by the user equipment; a notification unit (18) configured to notify, to the user equipment, the transmission format determined by the transmission format determining unit; a transmission power controlling unit (19) configured to control a transmission power of the downlink data channel; and a transmitting unit (18) configured to transmit downlink data to the user equipment via the downlink data channel, by using the transmission format determined by the transmission format determining unit.

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25-08-2020 дата публикации

Low-delay packet erasure coding

Номер: US0010756843B2

Provided is a method for correcting errors in a data transmission network, comprising: transmitting a plurality of uncoded information packets across a network path; transmitting a plurality of coded packets for recovering information packets lost in transmission across said network path, the coded packets being temporally interspersed among said uncoded information packets, wherein the coded packets are encoded based on information packets transmitted prior to a previously transmitted coded packet; and determining the interspersion of the coded packets according to a packet loss rate.

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22-08-2019 дата публикации

BATTERY EFFICIENT WIRELESS NETWORK CONNECTION AND REGISTRATION FOR A LOW-POWER DEVICE

Номер: US20190260661A1
Принадлежит:

A client device is configured to communicate with an access point over a wireless network, exchanging data with the access point over a selected communication channel. The client device stores an identifier of the selected communication channel. After the wireless connection to the access point has ended, the client device initiates a process to reconnect to the access point over the selected communication channel using the stored identifier.

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10-07-2014 дата публикации

RATE ADAPTATION FOR DATA COMMUNICATION

Номер: US20140192847A1
Принадлежит: QUALCOMM INCORPORATED

In some embodiments, a method includes receiving, at a first device via a channel of a communication medium, multiple data transmissions, wherein a code rate of multiple code rates is associated with each data transmission of the multiple data transmissions. The method includes determining, based on signal characteristics of the multiple data transmissions, the data transmission from among the multiple data transmissions having a preferred physical data rate. The method also includes setting a code rate for the channel for communication from a second device to the first device via the communication medium, to the code rate of the data transmission having the preferred physical data rate.

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31-10-2017 дата публикации

Reliability detection of channel quality indicator (CQI) and application to outer loop power control

Номер: US0009807690B2

A method for performing outer loop power control in wireless communications includes initializing a time interval clock to count down a predetermined time interval; receiving and decoding a channel quality indicator (CQI) message; computing a decision metric value for each symbol in the decoded CQI message; determining whether the CQI message is erroneous; counting a number of erroneous CQI messages; and signaling a wireless/transmit receive unit to adjust an uplink transmission power on a condition that the time interval clock has expired and the number of erroneous CQI messages exceeds a threshold.

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30-04-2020 дата публикации

Apparatus, Computer Program, and Method for Timing-Based Restriction of a Data Signaling Direction

Номер: US20200137591A1
Принадлежит: FutureWei Technologies Inc

An apparatus, computer program, and method are provided for timing-based restriction of a data signaling direction. An operating cell is included in at least one of a plurality of groups with one or more other cells. In operation, a time is identified for restricting a direction of data signaling from the cell to a region, based on such time, while at least one of the one or more other cells of the at least one group is permitted to direct a data signaling thereof outside the region.

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01-10-2014 дата публикации

Transmission of data within a communications network

Номер: EP2785132A2
Принадлежит:

The invention relates to methods for providing a network element 5 of a communications network with data, in particular HSDPA related data. In order to enable the transmission of user data, it is proposed that a controller 4 of the network uses a dedicated frame structure for assembling frames with said user data. The frames can then be transmitted from the controller 4 via an interface to the network element 5. In order to enable the transmission of control parameters, it is further proposed that an interface application protocol is employed which allows the controller 4 to add control parameters to control messages transmitted from the controller 4 to a network element 5 via the interface.

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15-07-2002 дата публикации

Номер: JP0003302368B2
Автор:
Принадлежит:

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29-08-2012 дата публикации

Номер: JP0005010643B2
Автор:
Принадлежит:

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20-10-2016 дата публикации

ПЛАНИРОВЩИК ВНУТРИ QCI И СПОСОБ ПЛАНИРОВАНИЯ ВНУТРИ QCI В СЕТИ БЕСПРОВОДНОГО ДОСТУПА

Номер: RU2600451C2
Принадлежит: ИНТЕЛ КОРПОРЕЙШН (US)

Изобретение относится к системам связи. Варианты осуществления планировщика и способа внутри QCI для планирования внутри QCI описаны для работы в пределах сети беспроводного доступа, в которой потоки данных отображают на носитель, с использованием идентификаторов класса (QCI) качества обслуживания (QoS). В некоторых вариантах осуществления планировщик внутри QCI может классифицировать пакеты одного или более потоков данных, имеющих одинаковый QCI со вспомогательным QCI, на основании информации классификации внутри QCI, принятой от оборудования пользователя (UE). Вспомогательный QCI может указывать приоритет планирования для пакетов потоков данных, имеющих одинаковый QCI. Планировщик внутри QCI может планировать пакеты для передачи по нисходящему каналу передачи через радионоситель между eNodeB и UE на основе вспомогательного QCI. Использование вспомогательных QCI позволяет eNodeB предоставлять поддержку QoS для потоков данных в приложениях, которые отображают на принятый по умолчанию носитель ...

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20-10-2012 дата публикации

СПОСОБ УПРАВЛЕНИЯ СКОРОСТЬЮ ПЕРЕДАЧИ, МОБИЛЬНАЯ СТАНЦИЯ И КОНТРОЛЛЕР РАДИОСЕТИ

Номер: RU2464706C2
Принадлежит: НТТ ДоКоМо, Инк. (JP)

Заявленное изобретение относится к беспроводной связи. Технический результат заключается в эффективности использования радиоресурса. Для этого способ управления скоростью передачи для управления, в мобильной станции, скоростью передачи пользовательских данных восходящей линии связи на основании значения первой скорости передачи пользовательских данных восходящей линии связи, принятого по первому каналу управления скоростью передачи, которое передается с использованием первого идентификатора для мобильной станции, или значения второй скорости передачи пользовательских данных восходящей линии связи, принятого по второму каналу управления скоростью передачи, которое передается с использованием второго идентификатора для мобильной станции, содержит этапы, на которых: сохраняют в мобильной станции значение второй скорости передачи пользовательских данных восходящей линии связи, принятое по второму каналу управления скоростью передачи, и удаляют из мобильной станции сохраненное значение второй ...

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27-02-2009 дата публикации

СПОСОБ УПРАВЛЕНИЯ СКОРОСТЬЮ ПЕРЕДАЧИ, МОБИЛЬНАЯ СТАНЦИЯ И КОНТРОЛЛЕР РАДИОСЕТИ

Номер: RU2348106C2
Принадлежит: НТТ ДоКоМо, Инк. (JP)

Изобретение относится к управлению скоростью передачи. Технический результат - эффективное использование радиоресурса. Для этого способ управления скоростью передачи для управления, в мобильной станции, скоростью передачи пользовательских данных восходящей линии связи, на основании значения выделенной абсолютной скорости передачи пользовательских данных восходящей линии связи, принятого по выделенному каналу E-AGCH, который передается с использованием выделенного идентификатора для мобильной станции, или значения общей абсолютной скорости передачи пользовательских данных восходящей линии связи, принятого по общему каналу E-AGCH, который передается с использованием общего идентификатора для мобильных станций, которые удовлетворяют заранее определенному условию, включает в себя этапы, на которых: сохраняют, на мобильной станции, значение общей абсолютной скорости передачи пользовательских данных восходящей линии связи, принятое по общему каналу E-AGCH; и удаляют, с мобильной станции, сохраненное ...

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28-01-2020 дата публикации

СПОСОБ ПЕРЕДАЧИ ДАННЫХ, УСТРОЙСТВО И СИСТЕМА

Номер: RU2712437C1

Изобретение относится к области технологий связи. Технический результат изобретения заключается в повышении эффективности системы связи за счет более высокого требования задержки для передаваемых данных. Более высокое требование надежности передаваемых данных указывает более высокий первый целевой уровень качества передачи. Способ передачи данных содержит этапы: получают с помощью первого устройства связи целевой коэффициент блочной ошибки (BLER), причем целевой BLER составляет 0,1 или 0,00001; принимают с помощью первого устройства связи индикатор качества канала (CQI) от второго устройства связи; определяют с помощью первого устройства связи схему модуляции и кодирования (MCS) подлежащих передаче данных в соответствии с заданной таблицей и CQI; осуществляют кодирование и модуляцию с помощью первого устройства связи подлежащих передаче данных на основании MCS; передают с помощью первого устройства связи MCS и кодированные, и модулированные подлежащие передаче данные на второе устройство ...

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10-09-2008 дата публикации

СПОСОБ ОПТИМИЗАЦИИ ЧАСТЕЙ КАДРА

Номер: RU2007106857A
Принадлежит:

... 1. Способ оптимизации функционирования в системе радиосвязи, заключающийся в том, что передают первый параметр с использованием первого канала перед оптимизацией одного или большего количества выбранных каналов, причем упомянутый первый параметр содержит схему модуляции и первое расписание, при этом для оптимизации функционирования одного или большего количества каналов используют упомянутую схему модуляции. 2. Способ по п.1, в котором дополнительно выбирают один или большее количество каналов из нескольких физических каналов для оптимизации функционирования. 3. Способ по п.1, в котором дополнительно определяют упомянутую схему модуляции, которая должна использоваться для оптимизации функционирования. 4. Способ по п.1, в котором дополнительно выбирают упомянутое первое расписание, причем упомянутый этап выбора содержит этап, на котором выбирают параметр времени, указывающий, когда будет действовать оптимизация, и этап, на котором выбирают параметр продолжительности, указывающий длительность ...

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20-04-2016 дата публикации

ПЛАНИРОВЩИК ВНУТРИ QCI И СПОСОБ ПЛАНИРОВАНИЯ ВНУТРИ QCI В СЕТИ БЕСПРОВОДНОГО ДОСТУПА

Номер: RU2014139284A
Принадлежит:

... 1. Расширенный узел В (eNodeB) для функционирования в сети беспроводного доступа, в которой потоки данных отображают на носители, с использованием идентификаторов (QCI) класса качества обслуживания (QoS), содержащий:планировщик внутри QCI для классификации пакетов одного или более потоков данных, имеющих одинаковый QCI со вспомогательным QCI на основе информации классификации внутри QCI, принятой от оборудования пользователя (UE), при этом вспомогательный QCI указывает приоритет планирования для пакетов потоков данных, имеющих одинаковый QCI, причемпланировщик внутри QCI выполнен с возможностью планирования пакетов для передачи по нисходящему каналу передачи по радионосителю на основе вспомогательного QCI.2. eNodeB по п. 1, дополнительно содержащий планировщик между QCI, при этомпланировщик между QCI и планировщик внутри QCI выполнены с возможностью функционирования на уровне управления доступом к среде (MAC) для eNodeB, причемпланировщик между QCI выполнен с возможностью выделения полосы ...

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10-04-2016 дата публикации

РАЗРАБОТКА ВРЕМЕННЫХ ХАРАКТЕРИСТИК ПЛАНИРОВАНИЯ ДЛЯ СИСТЕМЫ TDD

Номер: RU2014137294A
Принадлежит:

... 1. Способ определения конфигурации временных характеристик соты, содержащий этапы, на которых:передают с помощью улучшенного NodeB (eNB) указатель конфигурации подфрейма восходящего/нисходящего (UL-DL) каналов передачи планирующей соты в беспроводной дуплексной системе (TDD) с разделением по времени, использующей перекрестное планирование несущих;передают указатель конфигурации подфрейма UL-DL планируемой соты в беспроводной системе TDD;идентифицируют тип конфигурации подфрейма UL-DL планирующей соты на основе времени на передачу сигнала в прямом и обратном направлениях восходящего канала передачи (RTT) в процессе гибридного автоматического запроса на повторение (HARQ), с использованием конфигурации подфрейма UL-DL планирующей соты; и определяют конфигурацию временной характеристики HARQ для планируемой соты на основе типа конфигурации подфрейма UL-DL планирующей соты.2. Способ по п. 1, в котором планирующая сота представляет собой первичную обслуживающую соту или вторичную обслуживающую ...

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27-02-2008 дата публикации

СПОСОБ УПРАВЛЕНИЯ СКОРОСТЬЮ ПЕРЕДАЧИ, МОБИЛЬНАЯ СТАНЦИЯ И КОНТРОЛЛЕР РАДИОСЕТИ

Номер: RU2006130352A
Принадлежит:

... 1. Способ управления скоростью передачи для управления в мобильной станции скоростью передачи пользовательских данных восходящей линии связи на основании значения выделенной абсолютной скорости передачи пользовательских данных восходящей линии связи, принятого по выделенному каналу управления абсолютной скоростью передачи, который передается с использованием выделенного идентификатора для мобильной станции, или значения общей абсолютной скорости передачи пользовательских данных восходящей линии связи, принятого по общему каналу управления абсолютной скоростью передачи, который передается с использованием общего идентификатора для мобильных станций, которые удовлетворяют заранее определенному условию, содержащий этапы, на которых сохраняют на мобильной станции значение общей абсолютной скорости передачи пользовательских данных восходящей линии связи, принятое по общему каналу управления абсолютной скоростью передачи, и удаляют с мобильной станции сохраненное значение общей абсолютной скорости ...

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27-03-2005 дата публикации

СПОСОБ И УСТРОЙСТВО ДЛЯ ЭФФЕКТИВНОГО ИСПОЛЬЗОВАНИЯ РЕСУРСОВ СВЯЗИ В СИСТЕМЕ СВЯЗИ МДКР

Номер: RU2004112545A
Автор: ЧЕН Тао (US)
Принадлежит:

... 1. Способ в системе связи, способ, содержащий этапы, на которых: передают пакет данных посредством кадра данных на первой скорости передачи данных и на уровне мощности с передающей стороны, принимают пакет данных на принимающей стороне, если не удается декодировать пакет данных, передают отрицательное квитирование на передающую сторону и повторно передают пакет данных на второй скорости передачи данных посредством, по меньшей мере, двух кадров данных на уровне мощности. 2. Способ по п.1, по которому вторая скорость передачи данных ниже первой скорости передачи данных. 3. Способ по п.1, который также содержит этап, на котором выбирают вторую скорость передачи данных из заранее определенной группы скоростей передачи данных для передачи. 4. Способ по п.1, по которому количество, по меньшей мере, двух кадров данных зависит от отношения первой и второй скоростей передачи данных. 5. Способ по п.1, который также содержит этапы, на которых определяют энергию на бит пакета данных при отношении первой ...

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09-08-2006 дата публикации

Flexible rate split method for mimo transmission

Номер: GB0002422996A
Принадлежит:

A method for transmitting a packet of N input bits includes encoding all of the N bits as a single entity, such as with an interleaver of length N within a turbo coder, outputting M encoded bits, channel interleaving the M bits, splitting the M encoded bits into a parallel first and second portion, and transmitting them over separate channels to achieve spatial diversity. The size of the first and second portion is determined based on a closed feedback loop that provides some knowledge of the channel, preferably a measure of channel capacity. The feedback loop may also provide channel knowledge to a subpacket selector associated with each transmit antenna, which determines an appropriate rate for that channel and selects subpackets to fill a transmission packet for that channel. The subpacket selectors choose a subpacket of systematic bits and fill the remaining transmission packet size with subpackets of parity bits. Eigenvectors maybe employed to transmit each transmission packet over ...

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06-06-2013 дата публикации

MULTICARRIER-SIGNAL RECEIVING APPARATUS AND MULTICARRIER-SIGNAL TRANSMITTING APPARATUS

Номер: US20130142279A1
Принадлежит: SHARP KABUSHIKI KAISHA

A multicarrier-signal transmitting apparatus comprising a rotation-amount setting unit configured to set a phase rotation amount for each subcarrier of a plurality of subcarrier groups, the phase rotation amount being set with a setting selected from a first setting and a second setting, the first setting being such that the phase rotation amount is identical for a plurality of subcarriers within each subcarrier group, and the second setting being such that the phase rotation amount is identical for a plurality of subcarriers within a plurality of subcarrier groups; and a phase rotator configured to add a phase rotation to a data signal of said each subcarrier of said plurality of subcarrier groups based on the phase rotation amount. 1. A multicarrier-signal transmitting apparatus comprising:a rotation-amount setting unit configured to set a phase rotation amount for each subcarrier of a plurality of subcarrier groups, the phase rotation amount being set with a setting selected from a first setting and a second setting, the first setting being such that the phase rotation amount is identical for a plurality of subcarriers within each subcarrier group, and the second setting being such that the phase rotation amount is identical for a plurality of subcarriers within a plurality of subcarrier groups; anda phase rotator configured to add a phase rotation to a data signal of said each subcarrier of said plurality of subcarrier groups based on the phase rotation amount.2. The multicarrier-signal transmitting apparatus according to claim 1 ,wherein the rotation-amount setting unit is further configured to determine the phase rotation amount based on types of physical channels, transport channels or logical channels.3. A multicarrier-signal transmitting method comprising:setting a phase rotation amount for each subcarrier of a plurality of subcarrier groups, the phase rotation amount being set with a setting selected from a first setting and a second setting, the first ...

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15-08-2013 дата публикации

SWITCHED-LOAD RESONATING TRANSMITTER FOR PASSBAND POWER LINE COMMUNICATION

Номер: US20130208830A1
Автор: Rieken David W.
Принадлежит: ACLARA POWER-LINE SYSTEMS INC.

A switched-load, resonant transmitter (T) for inbound signaling in a two-way automatic communications system (TWACS). The load is purely reactive containing both inductive (L) and capacitive (C) elements. When connected in a power transmission network, the transmitter generates signals useful for passband communications. The transmitter consumes, on average, 100 times less power than resistive switched-load transmitters currently in use in TWACS networks. Signal strength is comparable to that produced by the transmitters currently in use at frequencies near 1 kHz, but is very low otherwise. 1. in a two-way automatic communications system , a switched-load transmitter for use in inbound signaling , the transmitter comprising:a resonant transponder having a reactive load including an inductive component and a capacitive component, the values of the inductive and capacitive components being such that a digital signal transmission is formed by the superposition of two sinusoids, a first frequency tone representing the frequency of an electrical waveform generated by a utility with which the communications system is employed, and a high-frequency tone,2. The transmitter of in which the inductive component comprises an inductor and the capacitive component a capacitor.3. The transmitter of in which the inductor and capacitor are connected in series with a load resistor.4. The transmitter of further including a switch for selectively connecting the reactive load with a voltage source claim 1 , the switch being operated so to generate components of a signal transmitted over the communications system.5. The transmitter of in which the switch comprises a MOSFET switching circuit.6. The transmitter of in which the transmitter is operated using on-off keying (OOK).7. The transmitter of in which the transmitter is operated using phase-shift keying (PSK). The present application is related to and claims priority from, U.S. provisional patent application Ser. No. 61/332,406 filed ...

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19-09-2013 дата публикации

User equipment and method for reducing delay in a radio access network

Номер: US20130242726A1
Автор: Jing Zhu, Rath Vannithamby
Принадлежит: Intel Corp

Embodiments of user equipment and methods for reducing delay in a radio-access network (RAN) are generally described herein. Embodiments disclosed herein provide enhancements that may be applicable to a 3GPP LTE RAN for reducing delay that may be particularly beneficial for real-time over-the-top (OTT) applications. Some embodiments provide for an uplink delayed buffer status report. Some embodiments provide for a downlink congestion and buffer report. Some embodiments provide for traffic characteristic based inter-UE prioritization.

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19-09-2013 дата публикации

In enhanced physical downlink control channel (ePDCCH)

Номер: US20130242770A1
Принадлежит: Intel Corp

Technology for transmitting a distributed control channel element (CCE) for an enhanced physical downlink control channel (ePDCCH) and a localized CCE in a physical resource block (PRB) pair from a node and technology for physical downlink shared channel (PDSCH) physical resource block (PRB) allocation with at least one enhanced physical downlink control channel (ePDCCH) at a wireless device is disclosed. One method can include a node precoding at least one distributed CCE and at least one localized CCE for the PRB pair. The node can transmit the at least one distributed CCE for transmit diversity using at least two user equipment-specific reference signal (UERS) ports and transmitting the at least one localized CCE in the PRB pair. The at least two UERS ports can be used to transmit two CCEs.

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26-09-2013 дата публикации

OPTIMIZATION METHOD OF OPTIMALLY SETTING EMPHASIS AND OPTIMIZATION DEVICE FOR OPTIMALLY SETTING EMPHASIS

Номер: US20130251015A1
Принадлежит: ANRITSU CORPORATION

In an emphasis optimization device, a calculating unit calculates an inverse characteristic of an amplitude characteristic based on the amplitude characteristic of a transmission path, and an inverse Fourier transform unit performs an inverse Fourier transform on the inverse characteristic to obtain an impulse response. An extracting unit extracts, from the obtained impulse response, an impulse response corresponding to the number of taps necessary for emphasis to be added to a digital signal to be transmitted on the transmission path. An emphasis amount calculating unit converts the extracted impulse response into a value of the emphasis to calculate an emphasis amount. 1. An emphasis optimization device comprising:an inverse characteristic calculating unit configured to calculate an inverse characteristic of an amplitude characteristic based on the amplitude characteristic of a transmission path;an inverse Fourier transform unit configured to perform an inverse Fourier transform on the inverse characteristic of the amplitude characteristic of the transmission path to obtain an impulse response;an impulse response extracting unit configured to extract, from the obtained impulse response, out an impulse response corresponding to the number of taps necessary for emphasis to be added to a digital signal to be transmitted on the transmission path; andan emphasis amount calculating unit configured to convert the extracted impulse response into a value of the emphasis to calculate an emphasis amount.2. An emphasis optimization method comprising:calculating an inverse characteristic of an amplitude characteristic based on the amplitude characteristic of a transmission path;performing an inverse Fourier transform on the inverse characteristic of the amplitude characteristic of the transmission path to obtain an impulse response;extracting, from the obtained impulse response, out an impulse response corresponding to the number of taps necessary for emphasis to be added to a ...

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21-11-2013 дата публикации

MULTICARRIER-SIGNAL RECEIVING APPARATUS AND MULTICARRIER-SIGNAL TRANSMITTING APPARATUS

Номер: US20130308720A1
Принадлежит: SHARP KABUSHIKI KAISHA

A multicarrier-signal transmitting apparatus comprising a rotation-amount setting unit configured to set a phase rotation amount for each subcarrier of a plurality of subcarrier groups, the phase rotation amount being set with a setting selected from a first setting and a second setting, the first setting being such that the phase rotation amount is identical for a plurality of subcarriers within each subcarrier group, and the second setting being such that the phase rotation amount is identical for a plurality of subcarriers within a plurality of subcarrier groups; and a phase rotator configured to add a phase rotation to a data signal of said each subcarrier of said plurality of subcarrier groups based on the phase rotation amount. 1. A multicarrier-signal transmitting apparatus comprising:a rotation-amount setting unit configured to set a phase rotation amount for each subcarrier of a plurality of subcarrier groups, the phase rotation amount being set with a setting selected from a first setting and a second setting, the first setting being such that the phase rotation amount is capable to be different between a subcarrier group and an adjacent subcarrier group within a plurality of adjacent subcarrier groups, and the second setting being such that the phase rotation amount is identical between a subcarrier group and an adjacent subcarrier group within a plurality of adjacent subcarrier groups; anda phase rotator configured to add a phase rotation to reference signals and a data signal of said each subcarrier of said plurality of subcarrier groups based on the phase rotation amount.2. The multicarrier-signal transmitting apparatus according to claim 1 ,wherein the rotation-amount setting unit is further configured to determine the phase rotation amount based on types of physical channels, transport channels or logical channels.3. A multicarrier-signal transmitting method comprising:setting a phase rotation amount for each subcarrier of a plurality of subcarrier ...

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27-02-2014 дата публикации

Method and trancvier for digital subscriber line system

Номер: US20140056339A1
Автор: Qingquan Shi
Принадлежит: Huawei Technologies Co Ltd

This disclosure provides a method and transceiver for a digital subscriber line (DSL) system. A first transceiver performs a communication with a second transceiver with a bit table including a first parameter of bit load for sub-carriers, and transmits a switch message for requesting a bit load reduction to the second transceiver when the first transceiver determines that an obtained communication performance parameter reaches or exceeds the predetermined value; and in response to the transmission of the switch message, executing a switch to a second parameter of bit load for sub-carriers at a certain symbol of a frame. The first transceiver calculates the second parameter of bit load by subtracting a corresponding bit number from the first parameter of bit load. The corresponding bit number is transmitted by the first transceiver to the second transceiver for calculating a same parameter of bit load as the second parameter of bit load.

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27-03-2014 дата публикации

PULSE SHAPING FOR GENERATING NFC INITIATOR TRANSMIT WAVEFORM

Номер: US20140086301A1
Принадлежит: QUALCOMM INCORPORATED

Systems and methods are disclosed that can shape signals to meet emission mask requirements, current consumption requirements, and overshoot/undershoot requirements relating to the interaction that, for example, occurs when a near field communications (NFC) target comes within range of an NFC initiator, and the initiator generates and transmits an NFC waveform. In some implementations, a pair of bit patterns are defined whose differential output from an amplifier is a shaped pulse width modulated waveform. Varying individual bits of the bit patterns can vary the shaped pulse waveform with predictability. The pulse width modulated waveform may be filtered using a matching network that reduces higher order harmonics, thereby reducing out-of-band emissions. 1. An apparatus for wireless communications comprising:a memory unit configured to store a plurality of bit patterns;a first circuit configured to generate a first signal using a first selected one of the plurality of bit patterns, and configured to generate a second signal corresponding to a second selected one of the plurality of bit patterns; andan amplifier coupled to the first circuit and configured to generate a pulse width modulated signal at a carrier frequency based on the first signal and the second signal.2. The apparatus of claim 1 , further comprising a second circuit configured to filter higher order harmonics of the pulse width modulated signal to generate a near field communications (NFC) transmit signal.3. The apparatus of claim 1 , wherein the plurality of bit patterns comprises bit patterns that that shapes the pulse width modulated signal to reduce higher order harmonics for each protocol claim 1 , modulation index claim 1 , and data rate combination.4. The apparatus of claim 2 , further comprising a transmitter operationally coupled to the second circuit claim 2 , the transmitter configured to transmit the near field communications (NFC) transmit signal.5. The apparatus of claim 1 , wherein the ...

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07-01-2016 дата публикации

METHOD FOR ADJUSTING PARAMETERS OF SENDING DEVICE AND RECEIVING DEVICE, AND TERMINAL DEVICE

Номер: US20160006540A1
Автор: WANG Weiyang, Wang Xiang
Принадлежит:

The present invention discloses a method for adjusting parameters of a sending device and a receiving device, and a terminal device. In the method, a new precoding parameter that needs to be used by a sending device on a line when a precoding matrix in a downlink direction of the line changes, and a new signal recovery parameter that needs to be used by a receiving device and matches the new precoding parameter are first acquired; and then the new precoding parameter, the new signal recovery parameter, and a set moment and/or symbol at which the sending device starts to use the new precoding parameter are sent to the sending device, and the new signal recovery parameter and the set moment and/or symbol are sent to the receiving device by using the sending device. 1. A method for adjusting parameters of a sending device and a receiving device of a line , comprising:acquiring, by a terminal device, a new precoding parameter that needs to be used by the sending device on the line when a precoding matrix in a downlink direction of the line changes, wherein the new precoding parameter comprises at least a new precoding matrix for performing precoding processing on a signal to be sent though the line;acquiring a new signal recovery parameter that needs to be used by the receiving device on the line and matches the new precoding parameter; andsending, to the sending device, the new precoding parameter, the new signal recovery parameter, and a set moment and/or symbol at which the sending device starts to use the new precoding parameter to enable the sending device to send the new signal recovery parameter and the set moment and/or symbol to the receiving device, so that at the set moment and/or symbol, the sending device starts to use the new precoding parameter and the receiving device starts to use the new signal recovery parameter that matches the new precoding parameter.2. The method according to claim 1 , whereinsending the new precoding parameter, the new signal ...

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03-01-2019 дата публикации

Correction data

Номер: US20190007060A1
Принадлежит: Microsoft Technology Licensing LLC

Correction data units for data packets of a data stream are generated. A correction data unit is based on a set of the data packets of the stream. The stream is transmitted over a communication channel. A performance measure to be optimized is selected, which relates to the recovery of lost data packets of the stream. To optimize the performance measure, a plurality of correction data vectors are determined, and a plurality of a plurality of non-recovery probabilities, corresponding to the correction data vectors, are initialized. One or more of the correction data vectors are selected that contribute towards a non-recovery probability of an original data packet. The non-recovery probability associated with the original data packet is then minimized based on the selected one or more correction data vectors. The selected one or more correction data vectors are then used to determine which of the original data packets or data correction units to transmit.

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08-01-2015 дата публикации

METHOD FOR COMPENSATING MISMATCH OF IN-PHASE SIGNAL AND QUADRATURE SIGNAL OF TRANSMITTER/RECEIVER

Номер: US20150010109A1
Принадлежит:

A method for compensating mismatches of an in-phase signal and a quadrature signal of a transmitter/receiver is provided. The method includes: receiving a plurality of test signals to generate two groups of factors, respectively, where each group of factors is applied to two multipliers utilized for compensating a gain mismatch and a phase mismatch of the in-phase signal and the quadrature signal of the transmitter/receiver; then calculating a delay mismatch of the in-phase signal and the quadrature signal according to the two groups of factors. 1. A method for compensating a mismatch of an in-phase signal and a quadrature signal of a transmitter , wherein the transmitter comprises: a first multiplier, for receiving a first signal to generate a first adjusted first signal; and', 'a first mixer, coupled to the first multiplier, for mixing the adjusted first signal with a first local oscillation signal to generate a mixed first signal;, 'a first channel, comprisinga second multiplier, for receiving the first signal to generate a second adjusted first signal; an adder, coupled to the second multiplier, for adding the second adjusted first signal and a second signal to generate an adjusted second signal;', 'an adjustable delay unit, coupled to the adder, for delaying the adjusted second signal to generate a delayed second signal; and', 'a second mixer, coupled to the adjustable delay unit, for mixing the delayed second signal with a second local oscillation signal to generate a mixed second signal;, 'a second channel, comprisingwherein the first adjusted first signal is one of the in-phase signal and the quadrature signal, and the delayed second signal is the other one of the in-phase signal and the quadrature signal; and disabling the adjustable delay unit;', 'transmitting a first test signal and a second test signal to serve as the first signal and the second signal, respectively, to determine a first group of factors of the first multiplier and the second multiplier ...

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15-01-2015 дата публикации

MULTILEVEL SIGNAL TRANSMISSION SYSTEM CAPABLE OF ACCURATELY DETERMINING VOLTAGE LEVELS OF TRANSMITTED MULTILEVEL DATA SIGNAL

Номер: US20150016562A1
Автор: SHIBATA Osamu
Принадлежит:

A multilevel signal transmitting apparatus transmits a multilevel data signal with M voltage levels, and a multilevel clock signal with (M−2) voltage levels, to a multilevel signal receiving apparatus, where M is an even number equal to or more than four. The voltage levels of the multilevel data signal include M/2 first voltage levels larger than a reference voltage level, and M/2 second voltage levels smaller than the reference voltage level. Between each pair of adjacent voltage levels among the first voltage levels, one voltage level of the multilevel clock signal is set. Between each pair of adjacent voltage levels among the second voltage levels, one voltage level of the multilevel clock signal is set. An average of the voltage levels of the multilevel clock signal has a value between a minimum of the first voltage levels, and a maximum of the second voltage levels. 1. A multilevel signal transmitting apparatus comprising: a first driver circuit configured to generate a multilevel data signal with a number M of voltage levels , and a second driver circuit configured to generate a multilevel clock signal with a number (M−2) of voltage levels , where M is an even number equal to or more than four ,wherein the number M of voltage levels of the multilevel data signal include a number M/2 of first voltage levels larger than a predetermined reference voltage level, and a number M/2 of second voltage levels smaller than the reference voltage level,wherein between each pair of adjacent voltage levels selected among the number M/2 of first voltage levels of the multilevel data signal, one of the number (M−2) of voltage levels of the multilevel clock signal is set,wherein between each pair of adjacent voltage levels selected among the number M/2 of second voltage levels of the multilevel data signal, one of the number (M−2) of voltage levels of the multilevel clock signal is set, andwherein an average of the voltage levels of the multilevel clock signal for a ...

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14-01-2021 дата публикации

Uplink Repetition Enhancement

Номер: US20210014002A1
Принадлежит:

Apparatuses, systems, and methods for a wireless device to perform methods for enhancing uplink (UL) repetitions for an associated transport block. A user equipment device (UE) may be configured to transmit an indication of cancellation of remaining UL repetitions to a network, e.g., to a network entity, such as a base station, e.g., based, at least in part, on monitored channel conditions. Additionally, a network, e.g., a network entity such as a base station, may be configured to transmit an indication of cancellation of remaining UL repetitions to a UE, e.g., based on successful reception of the associated transport block. 1. A user equipment device (UE) , comprising:at least one antenna;at least one radio, wherein the at least one radio is configured to perform cellular communication using at least one radio access technology (RAT);one or more processors coupled to the at least one radio, wherein the one or more processors and the at least one radio are configured to perform voice and/or data communications; receive, from a base station, an uplink (UL) repetition configuration associated with a transport block, wherein the UL repetition configuration specifies a number of UL repetitions required for transmission of the transport block;', 'transmit, to the base station, at least a first portion of UL repetitions while monitoring UL channel quality; and', 'transmit, after transmission of the first portion of UL repetitions, an indication that the UE will not transmit additional UL repetitions, wherein the transmission of the first portion of UL repetition does not complete the number of UL repetitions required for transmission of the transport block, and wherein the indication that the UE will not transmit additional UL repetitions is based, at least in part, on the monitored UL channel quality., 'wherein the one or more processors are configured to cause the UE to2. The UE of claim 1 , 'determine, during transmission of the at least first portion of UL ...

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14-01-2021 дата публикации

DETERMINING A TONE SEQUENCE FOR WAKE-UP PROCEDURES

Номер: US20210014792A1
Принадлежит:

This disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, for determining one or more tone sequences (for example, for wake-up procedures). In one aspect, an access point (AP) may wake a mobile station (STA) from a low power mode using a wake-up packet, where an ON symbol of the wake-up packet is modulated using a tone sequence. To reduce the likelihood of a STA falsely identifying the ON symbol as a packet preamble, the AP may implement a tone sequence that satisfies a correlation metric threshold. For example, for a set of candidate tone sequences, each tone sequence may be associated with a correlation metric and peak-to-average-power ratio (PAPR) coordinate pair, and the tone sequence for modulating the ON symbol of the wake-up packet may be selected from a lower convex hull of the coordinate pairs. 1. An apparatus of an access point (AP) for wireless communications , comprising: determine that a station (STA) associated with the AP is to be awakened from a low power mode; and', 'generate a wake-up packet for reception by a wake-up radio of the STA to trigger wake-up of the STA, the wake-up packet including a tone sequence for an ON symbol of the wake-up packet, wherein the tone sequence satisfies a correlation metric threshold; and, 'a processing system configured to 'output the wake-up packet for transmission to the STA.', 'an interface configured to2. The apparatus of claim 1 , wherein:the correlation metric threshold comprises a maximum correlation metric threshold; andthe tone sequence comprises a maximum correlation metric that satisfies the maximum correlation metric threshold by being less than the maximum correlation metric threshold.3. The apparatus of claim 2 , wherein:satisfaction of the maximum correlation metric threshold is based at least in part on each of a plurality of cyclic shifts of the ON symbol satisfying the maximum correlation metric threshold.4. The apparatus of claim 2 , ...

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17-04-2014 дата публикации

METHOD AND APPARATUS FOR PREDICTING SIGNAL CHARACTERISTICS FOR A NONLINEAR POWER AMPLIFIER

Номер: US20140105327A1
Принадлежит: QUALCOMM INCORPORATED

Aspects disclosed herein relate to predicting one or more signal characteristics to improve efficiency for a PA. A wireless communications device may be include a power amplifier and a processor that is associated with a signal prediction module. In an aspect, the processor may be a modem, a RF chip, etc. In one example, the wireless communications device may be configured to buffer one or more values associated with an input signal. The signal prediction module may be configured to predict a system response to at least a portion of the one or more buffered values, and generate a switcher control signal based on the system response. The signal prediction module may also generate a predicted supply voltage from the values associated with the input signal. 1. A method of communications , comprising:buffering one or more values associated with an input signal;predicting a system response to at least a portion of the one or more buffered values; andgenerating a switcher control signal based on the system response.2. The method of claim 1 , wherein the predicting the system response further comprises:using a response function based on a system configuration to generate one or more projected supply voltage values, wherein the system includes a low pass filter and a PA;comparing each of the one or more projected supply voltage values with a corresponding bound value based at least in part on the buffered one or more values associated with the input signal; anddetermining whether any projected supply voltage value of the one or more projected supply voltage values is within a tolerance threshold of the corresponding bound value.3. The method of claim 2 , wherein the generating further comprises generating the switcher control signal with a digital bit value prompting a power amplifier switcher to use a voltage source path upon a determination that any of the one or more projected supply voltage values is within the tolerance threshold of the corresponding bound value.4. The ...

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16-01-2020 дата публикации

Data Sending Method and Apparatus and Data Receiving Method and Apparatus

Номер: US20200021388A1
Автор: LYU Yongxia, Ma Ruixiang
Принадлежит:

This application discloses a data sending method. The method includes: determining, by a transmit end, a first resource based on a first parameter n, where n represents a quantity of transmissions of a first information block, the first resource is used for a current transmission of the first information block, and n is greater than or equal to 0; and transmitting, by the transmit end, first data by using the first resource, where the first data is data that is obtained by processing the first information block and that is used for the current transmission, where the first resource is included in K preconfigured resources. According to the data sending method, data transmission reliability is improved. 1. A data sending method , wherein the method comprises:determining, by a transmit end, a first resource based on a first parameter n, wherein n represents a quantity of transmissions of a first information block, the first resource is used for a current transmission of the first information block, and n is greater than or equal to 0; andtransmitting, by the transmit end, first data by using the first resource, wherein the first data is data that is obtained by processing the first information block and that is used for the current transmission, whereinthe first resource is comprised in K preconfigured resources, and K is an integer greater than or equal to 1.2. The method according to claim 1 , wherein the K preconfigured resources have different resource start positions.3. The method according to claim 1 , wherein the quantity of transmissions of the first information block is in a one-to-one correspondence with at least one of the K resources.4. The method according claim 1 , wherein the determining claim 1 , by a transmit end claim 1 , a first resource based on a first parameter n comprises:determining, by the transmit end, the first resource based on n and at least one of the following parameters:{'sub': '1', 'a reference position, a first time unit t, or a ...

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16-01-2020 дата публикации

INFORMATION TRANSMISSION METHOD AND APPARATUS

Номер: US20200021389A1
Автор: Guan Peng
Принадлежит:

Embodiments of this application disclose an information transmission method and apparatus, and relate to the field of communications technologies. In this technical solution, impact of a beam on information transmission is taken into account, thereby improving robustness of a control channel. The method may include: performing rate matching on a first bit sequence based on beam indication information, to obtain a second bit sequence, where the first bit sequence is a bit sequence obtained by performing channel coding on an original bit sequence; mapping the second bit sequence onto a time-frequency resource; and sending, to a receive end by using a beam indicated by the beam indication information, the second bit sequence that is mapped onto the time-frequency resource. 1. An information transmission method , comprising:performing, by a transmit end, rate matching on a first bit sequence based on beam indication information, to obtain a second bit sequence, wherein the first bit sequence is a bit sequence obtained by performing channel coding on an original bit sequence;mapping, by the transmit end, the second bit sequence onto a time-frequency resource; andsending, by the transmit end, to a receive end by using a beam indicated by the beam indication information, the second bit sequence that is mapped onto the time-frequency resource.2. The method according to claim 1 , wherein the performing rate matching on a first bit sequence based on beam indication information claim 1 , to obtain a second bit sequence comprises:determining, by the transmit end, an initial bit of the second bit sequence based on the beam indication information; andperforming, by the transmit end, rate matching on the first bit sequence based on the initial bit of the second bit sequence, to determine the second bit sequence.3. The method according to claim 1 , wherein the performing rate matching on a first bit sequence based on beam indication information claim 1 , to obtain a second bit ...

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25-01-2018 дата публикации

MIMO RANK REDUCTION TO IMPROVE DOWNLINK THROUGHPUT

Номер: US20180026688A1
Принадлежит:

Systems and methods for Multiple-Input and Multiple-Output (MIMO) rank reduction to improve downlink throughput are disclosed. A method of operation of a radio access node includes determining that an imbalance between parallel channels of a spatial multiplexing downlink transmission to a wireless device is greater than an imbalance threshold and/or that a Negative Acknowledgement (NACK) rate over time for the parallel channels of a spatial multiplexing downlink transmission reported by the wireless device is greater than a NACK rate threshold. The method also includes, in response to determining that the imbalance between the parallel channels is greater than the imbalance threshold and/or that the NACK rate is greater than the NACK rate threshold, performing a fast rank reduction for a next downlink transmission whereby a rank is reduced from a rank indicator reported by the wireless device to some lower rank. Reducing the rank may improve downlink throughput. 1. A method of operation of a radio access node in a cellular communications network comprising:determining at least one of that an imbalance between a plurality of parallel channels of a spatial multiplexing downlink transmission to a wireless device based on a plurality of measurements where each measurement is indicative of a signal quality for a corresponding one of the parallel channels is greater than an imbalance threshold and that a Negative Acknowledgement (NACK) rate over time for the plurality of parallel channels of a spatial multiplexing downlink transmission reported by the wireless device is greater than a NACK rate threshold; andin response to determining at least one of that the imbalance between the plurality of parallel channels is greater than the imbalance threshold and that the NACK rate is greater than the NACK rate threshold, performing a fast rank reduction for a next downlink transmission whereby a rank is reduced from a rank indicator reported by the wireless device to some lower ...

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02-02-2017 дата публикации

APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING POLARIZED SIGNALS

Номер: US20170033890A1
Принадлежит: Huawei Technologies Co., Ltd.

Provided is an apparatus and method for transmitting and receiving polarized signals. Wireless communication with multiple polarized signals may experience greater attenuation on one polarized signal than another polarized signal. The polarized signal that is more attenuated limits overall throughput for the wireless communication. According to an embodiment of the invention, signals undergo rotation processing with a transformation involving a rotation matrix prior to transmission. Each polarized signal that is transmitted is based on a different weighted combination of the signals. The rotation processing can be performed with an objective that signals recovered at a receiver have comparable signal quality, which can increase overall throughput. In some implementations, the rotation processing is performed based on feedback to dynamically adjust the rotation processing. 1. An apparatus comprising:a signal processor configured to process a first signal and a second signal with a rotation matrix to produce a first processed signal and a second processed signal such that each of the first and second processed signals is a respective different weighted combination of the first and second signals; anda transmitter configured to wirelessly transmit the first processed signal with a first polarization, and to wirelessly transmit the second processed signal with a second polarization that is substantially orthogonal to the first polarization;wherein the rotation matrix is a real matrix used to rotate the first signal and the second signal.2. The apparatus of claim 1 , wherein:the signal processor is configured to, based on received feedback, adjust an angle of rotation of the rotation matrix.4. The method of claim 3 , wherein:the rotation matrix comprises additional processing to produce the first processed signal and the second processed signal.5. The method of claim 4 , wherein the additional processing comprises a gain.6. The method of claim 4 , wherein:the rotation ...

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17-02-2022 дата публикации

Communication method and apparatus

Номер: US20220052798A1
Принадлежит: Huawei Technologies Co Ltd

Embodiments of this application disclose communication methods and apparatuses related to the field of communication technologies. One method comprises: obtaining, by a first device, first indication information; and sending, by the first device, the first indication information and first data to a second device, wherein the first indication information comprises first information indicating the second device to feed back hybrid automatic repeat request (HARQ) information for the first data based on information about a distance or a signal quality.

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17-02-2022 дата публикации

LATENCY REDUCTION

Номер: US20220053599A1
Принадлежит:

Reduced Advanced Audio Distribution Profile (A2DP) latency on a link between a source and a pair of headphones may be achieved by improving the quality of the link between secondary and primary and establishing a direct link between the source and secondary to mitigate the link quality issues of the source and primary link. In one example, this involves receiving, via a first receiver, packets from a source on a first wireless connection, determining, by the first receiver, that a first packet received via the first wireless connection has an error, establishing a second connection between the first receiver and a second receiver, and establishing a third connection between the second receiver and the source. In particular, the first receiver may be configured as a primary True Wireless Stereo (TWS) Bluetooth device and the second receiver may be configured as a secondary TWS Bluetooth device. 1. An apparatus comprising:a first receiver wirelessly coupled to a source configured to output packets, the first receiver configured as a primary True Wireless Stereo (TWS) Bluetooth device; anda second receiver wirelessly coupled to the first receiver, the second receiver configured as a secondary TWS Bluetooth device;wherein the first receiver is configured to establish a first connection with the source and a second connection with the second receiver, receive a first packet from the source on the first connection, and determine if the received first packet has an error;wherein the second receiver is configured to establish a third connection with the source.2. The apparatus of claim 1 , wherein the first packet is an Advanced Audio Distribution Profile (A2DP) packet.3. The apparatus of claim 1 , wherein the second receiver is further configured to receive the first packet from the source.4. The apparatus of claim 3 , wherein the first receiver is further configured to determine if the second receiver received the first packet in response to the determination the first ...

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30-01-2020 дата публикации

COMMON CONTROL CHANNEL AND REFERENCE SYMBOL FOR MULTIPLE WAVEFORM DATA TRANSMISSION

Номер: US20200036470A1
Принадлежит: IDAC HOLDINGS, INC.

Systems, methods, and instrumentalities are disclosed for determining an uplink (UL) waveform type associated with a data symbol in an UL transmission, wherein the UL waveform type is determined based on a predefined condition, indicating the determined UL waveform type using symbols in a slot, and wherein the symbols comprise a reference signal of a first type, and wherein the symbols are prior to the data symbol in the slot, and transmitting, using the determined UL waveform type, the symbols comprising the reference signal of the first type and a data symbol. 1. A wireless transmit/receive unit (WTRU) , comprising:a memory; determine a waveform type associated with a data symbol, wherein the waveform type is determined based on a predefined condition, and', 'indicate the determined waveform type using a plurality of symbols in a slot, wherein the plurality of symbols carries a set of reference signals of a first type; and, 'a processor configured to 'wherein the data symbol is transmitted in the slot, using the determined waveform type and after the plurality of symbols is transmitted.', 'a transceiver configured to transmit the plurality of symbols and the data symbol,'}2. The WTRU of claim 1 , wherein the predefined condition is any of a power limited condition or a mobility condition.3. The WTRU of claim 1 , wherein the processor is configured to apply one or more a-time domain orthogonal cover codes to the set of reference signals.4. The WTRU of claim 3 , wherein the set of reference signals includes two reference signals claim 3 , wherein the one or more time domain orthogonal cover codes include a time domain orthogonal cover code being [1 1] or [1 −1] claim 3 , wherein [1 1] indicates a first waveform type and [1 −1] indicates a second waveform type.5. The WTRU of claim 1 , wherein the determined waveform type is any of: an Orthogonal Frequency Division Multiplexing (OFDM) waveform claim 1 , or a Discrete Fourier Transform (DFT)-spread OFDM (DFT-s-OFDM) ...

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30-01-2020 дата публикации

RESOURCE MAPPING METHOD AND APPARATUS THEREOF

Номер: US20200036474A1
Принадлежит:

Embodiments of this application disclose a resource mapping method and an apparatus. The method includes: network device performs nested-structure mapping on a modulated symbol set to obtain a first resource block, where the modulated symbol set carries downlink control information corresponding to each of at least one user equipment, and modulated symbols of same user equipment that are carried on the first resource block are consecutive; then reconstructs, the first resource block to obtain a second resource block, where modulated symbols of same user equipment that are carried on the second resource block are non-consecutive; and maps the second resource block to a time-frequency resource, so that the user equipment obtains the modulated symbol set based on the time-frequency resource. 1. A resource mapping method , comprising:performing nested-structure mapping on a modulated symbol set to obtain a first resource block, wherein the modulated symbol set carries downlink control information corresponding to each of at least one user equipment, and modulated symbols of same user equipment that are carried on the first resource block are consecutive;reconstructing the first resource block to obtain a second resource block, wherein modulated symbols of same user equipment that are carried on the second resource block are non-consecutive; andmapping the second resource block to a time-frequency resource.2. The method according to claim 1 , wherein the reconstructing claim 1 , by the network device claim 1 , of the first resource block to obtain a second resource block comprises:performing one time of row-column interleaving on the first resource block to obtain the second resource block, wherein a column width of the one time of row-column interleaving is 2n, and n is a positive integer.3. The method according to claim 1 , wherein the reconstructing of the first resource block to obtain a second resource block comprises:performing at least two times of row-column ...

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04-02-2021 дата публикации

MINIMIZING BLOCK ERROR RATE (BLER) ASSOCIATED WITH A BEAM SWITCH

Номер: US20210036800A1
Принадлежит:

Aspects of the disclosure relate to minimizing the block error rate (BLER) experienced by a user equipment (UE) upon a downlink beam switch at the base station. The base station may mitigate the link adaptation convergence transient upon performing a beam switch by modifying the modulation and coding scheme (MCS) according to a difference in reference signal received power (RSRP) between the old beam and the new beam. The base station may further adjust the MCS utilizing an outer-loop link adaptation process or channel state feedback (CSF) provided by the UE after the beam switch. Other aspects, features, and embodiments are also claimed and described. 1. A method for wireless communication at a base station in a wireless communication network , the method comprising:communicating with a user equipment (UE) utilizing a first downlink beam of a plurality of downlink beams;switching from the first downlink beam to a second downlink beam of the plurality of downlink beams to communicate with the UE based on a difference between a first reference signal received power (RSRP) associated with the first downlink beam and a second RSRP associated with the second downlink beam; andmodifying a modulation and coding scheme (MCS) utilized for communication with the UE based on the difference between the first RSRP and the second RSRP.2. The method of claim 1 , further comprising:receiving at least one beam measurement report from the UE, wherein the first RSRP and the second RSRP are each included in one of the at least one beam measurement report; andcalculating the difference between the first RSRP and the second RSRP based on the at least one beam measurement report.3. The method of claim 1 , further comprising:estimating the difference between the first RSRP and the second RSRP based on respective signal quality measurements of a first uplink beam corresponding to the first downlink beam and a second uplink beam corresponding to the second downlink beam.4. The method of ...

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07-02-2019 дата публикации

TRANSMITTER, RECEIVER, AND SIGNAL PROCESSING METHOD THEREOF

Номер: US20190044652A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A transmitter and receiver of a broadcasting signal and a method of processing the broadcasting signal are provided. The transmitter includes: a segmenter configured to segment an L signaling of a frame into a plurality of segmented L signalings such that each of the segmented L signalings has bits a number of which is equal to or smaller than a predetermined number; and an encoder configured to perform a Bose, Chaudhuri, Hocquenghem (BCH) and a low density parity check (LDPC) encoding, or the LDPC encoding without the BCH encoding, with respect to the segmented L signalings. 1. A signal generation and transmitting apparatus comprising:a segmenter configured to segment input bits into a plurality of segmented blocks according to a segmentation value, if a size of the input bits is greater than the segmentation value;a zero padder configured to fill a bit space of a predetermined size with bits and one or more zero padding bits, if a size of the bits is less than the predetermined size, the bits comprising bits of each of the plurality of segmented blocks;an encoder configured to encode bits included in the bit space to generate parity bits based on a code;a puncturer configured to puncture one or more parity bits from among the generated parity bits;a zero remover configured to remove the one or more zero padding bits from the encoded bits included in the bit space;a mapper configured to map remaining encoded bits after removing and remaining parity bits after the puncturing onto constellation points; anda transmitter configured to transmit a signal which is generated based on the constellation points,wherein the segmentation value is based on the code, a zero padding parameter and a puncturing parameter.2. The signal generation and transmitting as claimed in claim 1 , further comprising:an encoder configured to encode the plurality of segmented blocks based on a first code to generate a codeword respectively, the codeword comprising bits of a segmented block and ...

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18-02-2021 дата публикации

Method and device for adjusting neural-network-based wireless modem

Номер: US20210050932A1
Автор: Lin Xuan, Yang Guo
Принадлежит: Beijing Xiaomi Mobile Software Co Ltd

A method for adjusting a wireless modem includes: a channel parameter of a wireless modem at a present moment is acquired; a target clock frequency and a target working voltage of the wireless modem are generated, according to the channel parameter, with a neural network that is pre-trained; and a working voltage and a clock frequency of the wireless modem are adjusted to the target working voltage and the target clock frequency, respectively.

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23-02-2017 дата публикации

NON-LINEAR PRECODER WITH SEPARATE TRACKING

Номер: US20170054473A1
Принадлежит: ALCATEL LUCENT

A network unit includes a non-linear precoder for jointly pre-processing transmit samples to be transmitted over respective communication channels for crosstalk mitigation. The non-linear precoder includes a first non-linear precoding stage configured to operate according to a first triangular precoding matrix and including a modulo function, followed by a second linear precoding stage configured to operate according to a second precoding matrix. The network unit further includes a first pilot signal generator configured to generate first pilot signals for pre-processing by the second precoding stage only to yield partially-precoded pilot signals for further transmission over the respective communication channels, and a controller configured to update the second precoding matrix based on first error measurements performed during the transmission of the partially-precoded pilot signals over the respective communication channels while keeping the first precoding matrix unaltered. 1. A network unit comprising a non-linear precoder for jointly pre-processing transmit samples to be transmitted over respective communication channels for crosstalk mitigation , the non-linear precoder comprising a first non-linear precoding stage configured to operate according to a first triangular precoding matrix and including a modulo function , followed by a second linear precoding stage configured to operate according to a second precoding matrix ,wherein the network unit further comprises a first pilot signal generator configured to generate first pilot signals for pre-processing by the second precoding stage only to yield partially-precoded pilot signals for further transmission over the respective communication channels, and a controller configured to update the second precoding matrix based on first error measurements performed during the transmission of the partially-precoded pilot signals over the respective communication channels while keeping the first precoding matrix ...

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23-02-2017 дата публикации

Low-Delay Packet Erasure Coding

Номер: US20170054526A1

Provided is a method for correcting errors in a data transmission network, comprising: transmitting a plurality of uncoded information packets across a network path; transmitting a plurality of coded packets for recovering information packets lost in transmission across said network path, the coded packets being temporally interspersed among said uncoded information packets, wherein the coded packets are encoded based on information packets transmitted prior to a previously transmitted coded packet; and determining the interspersion of the coded packets according to a packet loss rate.

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05-03-2015 дата публикации

TRANSMISSION APPARATUS AND TRANSMISSION METHOD

Номер: US20150063127A1
Принадлежит: FUJITSU LIMITED

There is provided a transmission apparatus which includes a transmission unit configured to transmit a control data to an opposite transmission apparatus at a transmission interval, a first determination unit configured to determine a communication quality of a network connected with the opposite transmission apparatus, and an adjustment unit configured to adjust the transmission interval, at which the control data is transmitted, to be longer than a reference transmission interval when the communication quality is equal to or greater than a predetermined value. 1. A transmission apparatus comprising:a transmission unit configured to transmit a control data to an opposite transmission apparatus at a transmission interval;a first determination unit configured to determine a communication quality of a network connected with the opposite transmission apparatus; andan adjustment unit configured to adjust the transmission interval, at which the control data is transmitted, to be longer than a reference transmission interval when the communication quality is equal to or greater than a predetermined value.2. The transmission apparatus according to claim 1 , further comprising;a second determination unit configured to determine whether the number of maintenance end points that transmit and receive the control data exceeds a predetermined number,wherein the adjustment unit is configured to adjust the transmission interval to be longer than the reference transmission interval when the number of maintenance end points exceeds the predetermined number.3. The transmission apparatus according to claim 1 , wherein the adjustment unit is configured to adjust the transmission interval to make the transmission interval longer than the reference transmission interval based on information corresponding to the communication quality level claim 1 , when the communication quality level is larger than the predetermined value.4. A transmission method comprising:transmitting a control data ...

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10-03-2022 дата публикации

Data transmission method and related device

Номер: US20220078041A1
Автор: Haitao Hu, Weiguo LI
Принадлежит: Huawei Technologies Co Ltd

A data transmission method and a related device. The method includes: an OLT obtains a data template; then the OLT may obtain corresponding ONT data based on one or more data types defined in the data template; and then the OLT encodes the ONT data according to an XDR format and sends encoded ONT data to a management server; and the management server stores and manages the ONT data. According to the foregoing description, the OLT collects the corresponding ONT data based on the data template, and encodes and reports the ONT data according to the uniform XDR format. The embodiments define a unified statistics collecting and reporting manner of ONT data and uses standardly-defined ONT data, to help the management server store and manage the ONT data.

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22-05-2014 дата публикации

Method and apparatus for coordination of self-optimization functions in a wireless network

Номер: US20140140278A1
Автор: Joey Chou
Принадлежит: Intel Corp

A network management device and method for coordination of self-optimization functions in a wireless network. A network management device for coordination of self-optimization functions includes one or more processors and an interface. The interface communicates with a plurality of enhanced node Bs (eNodeBs). The interface is arranged to receive a request to change a coverage or a capacity of an enhanced node B (eNodeB). The interface is further arranged to transmit a query to the eNodeB to obtain a self-optimizing network (SON) coordination state of the eNodeB. The one or more processors are arranged to determine whether to grant or deny the request based on a coordination policy and the SON coordination state.

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02-03-2017 дата публикации

RATE ADAPTATION METHOD USING BIT ERROR RATE FOR MULTIMEDIA SERVICE AND APPARATUS THEREFOR

Номер: US20170063488A1
Автор: CHA Ji Hun, CHO Yong Ju
Принадлежит:

Rate adaptation is carried out using bit error rate (BER) to enable effective multimedia transmission. The BER can be estimated using signal strength in a MAC layer and modulation information (FIGS. -), and can be compatibly used in different wireless networks by means of message standardization. 1. An apparatus of receiving multimedia , the apparatus comprising:a message generator configured to generate a message including an indicator indicating a layer where a bit error rate is generated among a plurality of different layers including at least one of a physical (PHY) layer and an MAC (Media Access Control) layer.2. The apparatus of claim 1 ,wherein the message further includes a parameter indicating the bit error rate, andwherein the indicator indicating the layer where the bit error rate is generated belongs to part of the parameter indicating the bit error rate.3. The apparatus of claim 1 , further comprising:a transmitter configured to transmit the indicator indicating the layer where the bit error rate is generated and the generated bit error rate to a transmitting apparatus or to transmit a channel condition to the transmitting apparatus,wherein the channel condition is generated using the indicator indicating the layer where the bit error rate is generated and the bit error rate.4. The apparatus of claim 1 , wherein the indicator indicating the layer where the bit error rate is generated is delivered between layers of a receiving apparatus through a cross layer interface (CLI).5. An apparatus of transmitting multimedia claim 1 , the apparatus comprising:a message receiver configured to receive a message including an indicator indicating a layer where a bit error rate is generated among a plurality of different layers including at least one of a physical (PHY) layer and an MAC (Media Access Control) layer.6. The apparatus of claim 5 , wherein the bit error rate is estimated and generated using side information in the plurality of different layers including ...

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01-03-2018 дата публикации

RELIABILITY DETECTION OF CHANNEL QUALITY INDICATOR (CQI) AND APPLICATION TO OUTER LOOP POWER CONTROL

Номер: US20180063787A1
Принадлежит: Signal Trust for Wireless Innovation

A method for performing outer loop power control in wireless communications includes initializing a time interval clock to count down a predetermined time interval; receiving and decoding a channel quality indicator (CQI) message; computing a decision metric value for each symbol in the decoded CQI message; determining whether the CQI message is erroneous; counting a number of erroneous CQI messages; and signaling a wireless/transmit receive unit to adjust an uplink transmission power on a condition that the time interval clock has expired and the number of erroneous CQI messages exceeds a threshold. 1. A method comprising:counting a number of erroneously received control channel transmissions during a time interval;counting a number of missed control channel transmissions during the time interval; andreporting the number of erroneously received control channel transmissions and the number of missed control channel transmissions.2. The method of claim 1 , wherein the time interval is a fixed time interval.3. The method of claim 1 , wherein the method is performed repeatedly.4. The method of claim 1 , further comprising:decoding the received control channel transmissions, the decoded control channel transmissions include one or more symbols; andcomputing a decision metric value for each of the one or more symbols of the decoded control channel transmissions,wherein whether a received control channel transmission is deemed erroneous is based on the decision metric values.5. The method of claim 4 , wherein the control channel transmissions include channel quality index messages.6. The method of claim 1 , wherein the control channel is a physical uplink control channel.7. The method of claim 1 , wherein the control channel is a high speed dedicated control channel.8. The method of claim 1 , wherein the method is performed by a base station and the control channel transmissions are received from a wireless transmit and receive unit.9. An apparatus comprising:a counter ...

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17-03-2022 дата публикации

TRANSCEIVER FOR TRANSMISSION OF BMC DATA THROUGH CONFIGURABLE CHANNEL OF A USB TYPE-C PORT

Номер: US20220085911A1
Принадлежит:

The present disclosure provides a transceiver for transmission of data coded according to a Bi-phase Mark Coding (BMC) protocol through a configurable channel (CC) of a USB type-C port. The transceiver includes: a transmitter configured to receive the coded BMC data and transmit the coded BMC data through the CC line. The transmitter includes: a low dropout (LDO) regulator configured to receive a reference voltage (VREF) and generate a local programmable supply voltage; a delay control logic configured to receive the BMC data, and including flipflops connected in series, wherein, output from each flipflop is delayed with respect to input received by the flipflop; and a transmitter driver configured to receive output from each flipflop of the delay control logic, the transmitter driver including a NMOS switches and a PMOS switches. The transceiver includes an eye correction receiver configured to receive output from the transmitter driver of the transmitter. 1. A transceiver for transmission of data coded according to a Bi-phase Mark Coding (BMC) protocol through a configurable channel (CC) of a USB type-C port , said transceiver comprising:{'claim-text': ['a low dropout (LDO) regulator configured to receive a reference voltage (VREF) and generate a local programmable supply voltage;', 'a delay control logic configured to receive the BMC data, and comprising a plurality of flipflops connected in series, wherein, output from each of the plurality of flipflops is delayed with respect to input received by said each of the plurality of flipflops; and', 'a transmitter driver configured to receive the output from said each of the plurality of flipflops of the delay control logic, the transmitter driver comprising a plurality of NMOS switches and a plurality of PMOS switches,'], '#text': 'a transmitter configured to receive coded BMC data and transmit the coded BMC data through the CC, the transmitter comprising:'}wherein the plurality of NMOS switches and the plurality of ...

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28-02-2019 дата публикации

METHOD AND APPARATUS FOR DETERMINING A MODULATION SCHEME IN DIRECT LINK-BASED COMMUNICATION

Номер: US20190068312A1
Принадлежит:

Method and apparatus for determining a modulation scheme in direct link-based communication. A method implemented in a transmitting (TX) terminal device is provided. According to the method, a link quality of a direct link for transmission of information from the TX terminal device to one or more receiving (RX) terminal devices is determined based on one or more of the following: a context of the TX terminal device, or one or more reference signal received qualities (RSRQS) from the one or more RX terminal devices. A modulation scheme for modulating the information is determined based on the link quality. The information is modulated with the determined modulation scheme and the modulated information is transmitted to the one or more RX terminal devices via the direct link. 1. A method implemented in a transmitting (TX) terminal device , comprising:determining a link quality of a direct link for transmission of information from the TX terminal device to one or more receiving (RX) terminal devices, based on one or more of the following: a context of the TX terminal device, and one or more reference signal received qualities (RSRQs) from the one or more RX terminal devices;determining, based on the link quality, a modulation scheme for modulating the information;modulating the information with the determined modulation scheme; andtransmitting the modulated information to the one or more RX terminal devices via the direct link.2. The method of claim 1 , wherein the determining the modulation scheme comprises:in response to the link quality exceeding a threshold quality, determining a modulation scheme having an order higher than an order of 16 Quadrature Amplitude Modulation, 16QAM, scheme for modulating the information; orin response to the link quality exceeding a threshold quality, determining a modulation scheme having an order equal to or higher than an order of a 64QAM scheme for modulating the information.3. (canceled)4. The method of claim 2 , wherein the ...

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27-02-2020 дата публикации

Polar code encoding and decoding method and apparatus

Номер: US20200067531A1
Принадлежит: Huawei Technologies Co Ltd

Embodiments of this application provide a polar code encoding and decoding method and apparatus. The method includes: obtaining an information bit set from a polar code construction sequence table based on an information bit length and a target code length of to-be-encoded information, where the polar code construction sequence table stores a mapping relationship between an encoding parameter and a construction sequence corresponding to the encoding parameter, the construction sequence is a sequence representing an order of reliability of polarized channels, and the encoding parameter includes at least one of an aggregation level, the target code length, and a mother code length, or the encoding parameter is a maximum mother code length; and performing polarization encoding on the to-be-encoded information based on the to-be-encoded information and the information bit set.

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11-03-2021 дата публикации

METHOD AND APPARATUS FOR TRANSMITTING INFORMATION, AND METHOD AND APPARATUS FOR RECEIVING INFORMATION

Номер: US20210075538A1
Автор: Kim Bonghoe, NOH Kwangseok
Принадлежит:

A transmission method or a transmission apparatus maps input information of K+n bits to a polar code, encodes the input information on the basis of the polar code, and transmits the encoded input information. The input information includes n parity check bits. n1 bits of the n parity check bits are mapped to least reliable bit positions of K+n bit positions of the polar code, and n−n1 parity check bits (where n−n1>0) are mapped to n−n1 bit positions having a minimum row weight among K+n−n1 bit positions excluding the n1 least reliable bit positions among the K+n bit positions. 1. A method of transmitting information by a transmitting device in a wireless communication system , the method comprising:mapping input information of K+n bits to a Polar code;encoding the input information based on the Polar code; andtransmitting the encoded input information,wherein the input information includes n parity check bits,among the n parity check bits, n1 parity check bits are mapped to least reliable bit positions among K+n bit positions of the Polar code, and n−n1 parity check bits are mapped to n−n1 bit positions with a minimum row weight among K+n−n1 bit positions except for the n1 least reliable bit positions among the K+n bit positions, where n−n1>0.2. The method of claim 1 ,wherein the n−n1 parity check bits are mapped to n−n1 most reliable bit positions among bit positions with an equal minimum row weight when there is more than n−n1 bit positions with the equal minimum row weight.3. The method of claim 1 ,wherein the K+n bit positions among a total of N bit positions of the Polar code are determined based on a predefined Polar sequence.4. The method of claim 1 ,wherein the predefined Polar sequence includes a sequence ordering bit indices 0 to N-1 corresponding one by one to bit positions 0 to N-1 of the Polar code in ascending order of reliability.5. A method of receiving information by a receiving device in a wireless communication system claim 1 , the method ...

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24-03-2022 дата публикации

Ethernet Data Transmission Method and Communications Device

Номер: US20220094463A1
Принадлежит: Huawei Technologies Co Ltd

A method includes: sending, by a first device, a first bit stream to a second device, where the first bit stream is sent over N logical lanes of a physical layer of the first device; sending, by the first device, a first trigger marker group to the second device, where the first trigger marker group is used to indicate that the sending of the first bit stream ends; and sending, by the first device, a second bit stream to the second device in response to the sending of the first trigger marker group, where the second bit stream is sent over P logical lanes of the physical layer of the first device, and both N and P are positive integers.

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16-03-2017 дата публикации

METHOD, APPARATUS AND SYSTEM FOR UPLINK RANK ADAPTATION

Номер: US20170079058A1
Автор: Liu Jinhua, Miao Qingyu
Принадлежит:

A method, an apparatus and a system for uplink rank adaptation are provided in the present invention, wherein the method comprises: estimating the maximum supportable data rate and channel information of a user equipment in uplink transmission; comparing the maximum supportable data rate with one or more predetermined thresholds, wherein the predetermined thresholds are associated with corresponding ranks; and determining a rank used by the user equipment in the uplink transmission based on a result of the comparison and the estimated channel information. With the present invention, a base station can quickly determine a rank for uplink MIMO transmission, decrease the rank estimating error, and lower the computation complexity for estimating the rank and the subsequent pre-coding vector. 1. A method for uplink rank adaptation , comprising:receiving, by a user equipment (UE) from a base station, a rank for uplink transmission;changing, by the UE, the rank for uplink transmission to be different from the rank received from the base station based on one or more predetermined thresholds; andusing, by the UE, the changed rank for wireless communication of the user equipment in the uplink transmission.2. The method of claim 1 , wherein the one or more predetermined thresholds comprise one or more predetermined thresholds about buffered data in a transmit buffer and available uplink power headroom of the UE.3. The method of claim 1 , wherein changing the rank for uplink transmission based on one or more predetermined thresholds comprising:changing the rank for uplink transmission in response to determining that at least one of buffered data and available uplink power headroom is less than the one or more predetermined thresholds.4. The method of claim 3 , wherein the determination of the buffered data being less than the one or more predetermined thresholds is based on an enhanced transport format combination indicator (E-TFCI) of the UE.5. The method of claim 1 , wherein ...

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12-06-2014 дата публикации

DIGITAL PRE-DISTORTION SYSTEM FOR RADIO FREQUENCY TRANSMITTERS WITH REDUCED SAMPLING RATE IN OBSERVATION LOOP

Номер: US20140161207A1
Автор: Teterwak Jerzy Antoni
Принадлежит:

A system includes a digital to analog converter, a power amplifier, an analog-to-digital converter, a filter, and a pre-distortion module. The digital to analog converter generates analog data based on digital data. The power amplifier generates output data based on the analog data. The analog-to-digital converter generates samples based on the output data at a sampling rate less than a Nyquist sampling rate. The filter filters the digital data and generates filtered data. The pre-distortion module distorts the digital data based on the samples and the filtered data to compensate for distortion generated by the power amplifier. 1. A system comprising:a digital to analog converter that generates analog data based on digital data;a power amplifier that generates output data based on the analog data;an analog-to-digital converter that generates samples based on the output data at a sampling rate less than a Nyquist sampling rate;a filter that filters the digital data and that generates filtered data; anda pre-distortion module that distorts the digital data based on the samples and the filtered data to compensate for distortion generated by the power amplifier.2. The system of further comprising:an adaptation module that includes a distortion model of the power amplifier that is used to generate weights based on the samples and the filtered data,wherein the pre-distortion module distorts the digital data based on the weights.3. The system of further comprising an adaptation module that includes:a distortion model of the power amplifier that is used to distort the filtered data to generate distortion components; anda correlator that correlates the distortion components with nonlinear components of an error signal generated based on the samples and the filtered data and that generates weights,wherein the pre-distortion module distorts the digital data based on the weights.4. The system of further comprising:a downsampling module that downsamples the filtered data and ...

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22-03-2018 дата публикации

ACOUSTIC COMMUNICATION METHOD AND ACOUSTIC COMMUNICATION SYSTEM

Номер: US20180083731A1
Принадлежит:

An acoustic communication system includes a first acoustic communication apparatus and a second acoustic communication apparatus. The first acoustic communication apparatus transmits a first acoustic wave to the second acoustic communication apparatus. The second acoustic communication apparatus transmits, as a response, a second acoustic wave to the first acoustic communication apparatus continuously in constant cycles until a next first acoustic wave is received. Each cycle includes a transmission period and a pause period. The first acoustic communication apparatus, which has received the second acoustic wave, determines a transmission timing that allows the next first acoustic wave to be received by the second acoustic communication apparatus based on a time period required from transmission of the first acoustic wave till reception of the second acoustic wave and the length of the transmission period, and transmits the next first acoustic wave to the second acoustic communication apparatus at the determined transmission timing. 1. An acoustic communication method of performing acoustic communications without causing collision of acoustic waves between a first acoustic communication apparatus and a second acoustic communication apparatus , the method comprising:the first acoustic communication apparatus transmitting a first acoustic wave to the second acoustic communication apparatus;the second acoustic communication apparatus transmitting, upon receipt of the first acoustic wave, a second acoustic wave to the first acoustic communication apparatus continuously in constant cycles until a next first acoustic wave is received, each cycle including a transmission period and a pause period; andthe first acoustic communication apparatus which has received the second acoustic wave determining, based on a time period required from transmission of the first acoustic wave till reception of the second acoustic wave and a length of the transmission period, a transmission ...

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14-03-2019 дата публикации

Data Transmission Method, Device, and System

Номер: US20190081727A1
Автор: Feng Shulan
Принадлежит:

A first communications device obtains a first transmission quality target and first channel quality information, determines a modulation and coding scheme (MCS) of to-be-transmitted data based on the first transmission quality target and the first channel quality information, codes and modulates the to-be-transmitted data based on the MCS of the to-be-transmitted data, and sends the MCS of the to-be-transmitted data and the coded and modulated to-be-transmitted data to a second communications device. 1. A data transmission method , comprising:obtaining, by a first communications device, a first transmission quality target;obtaining, by the first communications device, first channel quality information, wherein the first channel quality information is used to indicate quality of a channel between the first communications device and a second communications device, and the first channel quality information is obtained based on the first transmission quality target;determining, by the first communications device, a modulation and coding scheme (MCS) of to-be-transmitted data based on the first transmission quality target and the first channel quality information, and coding and modulating the to-be-transmitted data based on the MCS of the to-be-transmitted data; andsending, by the first communications device, the MCS of the to-be-transmitted data and the coded and modulated to-be-transmitted data to the second communications device.2. The method according to claim 1 , wherein the obtaining claim 1 , by a first communications device claim 1 , a first transmission quality target comprises:determining, by the first communications device, the first transmission quality target from a plurality of transmission quality targets based on a delay requirement and a reliability requirement of the to-be-transmitted data.3. The method according to claim 2 , wherein the method further comprises:sending, by the first communications device, the first transmission quality target to the ...

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21-03-2019 дата публикации

VEHICLE DEVICE

Номер: US20190084563A1
Автор: SOGABE Haruhiko
Принадлежит:

A vehicle device is used for a vehicle and includes a data acquisition unit, a compensation unit, and an output unit. The data acquisition unit acquires data successively transmitted from outside a subject vehicle via communication. The compensation unit compensates a data loss resulting from unsuccessfully acquiring of data in the data acquisition unit by using data already acquired by the data acquisition unit and generates assistive data used for travel assistance of the subject vehicle. The compensation unit associates with the assistive data a compensation implementation value indicating an implementation of the compensation. The output unit outputs the assistive data associated with the compensation implementation value to a travel assistance device for performing the travel assistance when the compensation unit generates the assistive data by compensating the data loss. Accordingly, decrease of driver's reliability for travel assistance using data acquired through communication is restricted. 1. A vehicle device used for a vehicle , comprising:a data acquisition unit configured to acquire data successively transmitted from outside a subject vehicle via communication;a compensation unit configured to perform a compensation of a data loss resulting from unsuccessfully acquiring of data in the data acquisition unit by using data already acquired by the data acquisition unit, generate assistive data used for travel assistance of the subject vehicle, and associate with the assistive data a compensation implementation value indicating an implementation of the compensation; andan output unit configured to output the assistive data associated with the compensation implementation value to a travel assistance device for performing the travel assistance when the compensation unit generates the assistive data by compensating the data loss.2. The vehicle device according to claim 1 ,wherein the compensation unit is configured to associate with the assistive data a ...

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25-03-2021 дата публикации

Orthogonal Frequency Scheme for Narrowband Acoustic Signaling

Номер: US20210091986A1
Автор: BOOIJ Wilfred Edwin
Принадлежит: Forkbeard Technologies AS

A transmitter is disclosed. The transmitter includes a clock configured to generate one or more output clock signals. The transmitter further includes at least one frequency divider configured to generate a plurality of divided frequencies based on the one or more output clock signals, and a modulator. The transmitter also includes at least one antenna or transducer configured to transmit modulated data. The transmitter includes a memory configured to store instructions, and at least one processor configured to execute instructions performing operations including mapping data to a decimal code value of a plurality of decimal code values, converting the decimal code value to a shrinking base system, and selecting a set of frequencies among the plurality of divided frequencies based on the code value corresponding to the shrinking base system for the decimal code value. The modulator may be configured to modulate the decimal code value using the set of frequencies. 1. A transmitter comprising:a clock configured to generate one or more output clock signals;at least one frequency divider configured to generate a plurality of divided frequencies based on the one or more output clock signals;a modulator;at least one antenna or transducer configured to transmit modulated data;a memory configured to store instructions; and mapping data to a decimal code value of a plurality of decimal code values;', 'converting the decimal code value to a shrinking base system; and', 'selecting a set of frequencies among the plurality of divided frequencies based on the code value corresponding to the shrinking base system for the decimal code value;, 'at least one processor configured to execute instructions performing operations comprisingwherein the modulator is configured to modulate the decimal code value using the set of frequencies.2. The transmitter of claim 1 , wherein the modulator is further configured to modulate using frequency shift key (FSK) modulation scheme.3. The ...

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21-03-2019 дата публикации

ELECTRONIC APPARATUS WITH POWER OVER COAXIAL CABLE FUNCTION

Номер: US20190089561A1
Автор: Chen Chien-Ming
Принадлежит: REC Technology Corporation

An electronic apparatus with power over coaxial cable (PoC) function including a transmission port, a low-pass filter, a dynamic impedance circuit and a switching power converter is provided. The transmission port is coupled to a coaxial cable. The low-pass filter is coupled to the transmission port to receive a mixed signal from the coaxial cable and filter the mixed signal to obtain a first power. The dynamic impedance circuit is coupled to the low-pass filter to receive and store the first power and provide a second power accordingly. The switching power converter is coupled to the dynamic impedance circuit to receive the second power and convert the second power to an operation power. The dynamic impedance circuit changes an impedance thereof dynamically in response to a current change of the second power, so as to prevent a noise of the switching power converter from being feedback to the transmission port. 1. An electronic apparatus with power over coaxial cable function , comprising:a transmission port, coupled to a coaxial cable to perform power and data transmission;a low-pass filter, coupled to the transmission port to receive a mixed signal from the coaxial cable, and filtering the mixed signal to obtain a first power;a dynamic impedance circuit, coupled to the low-pass filter to receive and store the first power and provide a second power accordingly; anda switching power converter, coupled to the dynamic impedance circuit to receive the second power, and converting a voltage of the second power to generate an operation power required for operation of the electronic apparatus,wherein the dynamic impedance circuit changes an impedance of the dynamic impedance circuit dynamically in response to a current change of the second power, so as to prevent a noise of the switching power converter from being feedback to the transmission port,wherein when a current of the second power is larger than or equal to a reference current value in response to a switching ...

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30-03-2017 дата публикации

APPARATUS AND METHODS FOR TRANSMIT POWER CONTROL IN WIRELESS COMMUNICATION SYSTEMS

Номер: US20170093524A1
Принадлежит:

Apparatus and methods for transmit power control in wireless communication systems are provided. In one aspect, a wireless communication system includes a transmit chain that generates a transmit signal based on a data signal having a time-varying signal envelope, a power amplifier that amplifies the transmit signal, and a transmit chain controller that generates a first power control signal and a second power control signal that control an adjustable power level of the transmit chain. The transmit chain controller includes an error extractor that generates an error signal based on comparing an output signal power of the power amplifier to the time-varying signal envelope. The transmit chain controller further includes a control signal generator that generates the first power control signal and an adjustment signal based on estimating the error signal, and that generates the second power control signal based on the error signal and the adjustment signal. 1. A wireless communication system comprising:a transmit chain configured to generate a transmit signal based on a data signal having a time-varying signal envelope, the transmit chain having an adjustable power level controlled by a plurality of power control signals including a first power control signal and a second power control signal;a power amplifier including an input configured to receive the transmit signal and an output configured to provide an amplified signal; anda transmit chain controller including an error extractor configured to generate an error signal based on comparing a power signal indicating a signal power at the output of the power amplifier to an envelope signal indicating the time-varying signal envelope of the data signal, and a control signal generator configured to generate the first power control signal and an adjustment signal based on estimating the error signal, and to generate the second power control signal based on the error signal and the adjustment signal.2. The wireless ...

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19-03-2020 дата публикации

CODING AND DECODING METHOD AND APPARATUS

Номер: US20200092039A1
Принадлежит:

This application provides a coding and decoding method and apparatus. The method includes: performing polarization coding on first to-be-coded information, to obtain first coded information with a bit sequence length of M, where M is a positive integer; sending the first coded information on a first channel corresponding to the first to-be-coded information; performing polarization coding on second to-be-coded information, to obtain second coded information with a bit sequence length of 2M, where the second to-be-coded information includes the first to-be-coded information, and differences between sequence numbers of information bits corresponding to the first to-be-coded information and sequence numbers of information bits at (M+1)to 2Mbit positions in information bits corresponding to the second to-be-coded information are sequentially M in ascending order of sequence numbers. 1. A coding method , comprising:performing, by a transmit end, polarization coding on first to-be-coded information, to obtain first coded information with a bit sequence length of M, wherein M is a positive integer;sending, by the transmit end, the first coded information on a first channel corresponding to the first to-be-coded information;{'sup': th', 'th, 'performing, by the transmit end, polarization coding on second to-be-coded information, to obtain second coded information with a bit sequence length of 2M, wherein the second to-be-coded information comprises the first to-be-coded information, and differences between sequence numbers of information bits corresponding to the first to-be-coded information and sequence numbers of information bits at (M+1)to 2Mbit positions in information bits corresponding to the second to-be-coded information are sequentially M in ascending order of sequence numbers; and'}sending, by the transmit end, the second coded information on a second channel corresponding to the second to-be-coded information.2. The method according to claim 1 , wherein the ...

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01-04-2021 дата публикации

Joint Encoding Schemes With Interleaver And Tone Mapper For Multi-RU Operation

Номер: US20210099248A1
Принадлежит:

A method of joint encoding schemes with interleaver and tone mapper for multiple-resource unit (multi-RU) operation involves performing joint encoding of a plurality of information bits to generate a plurality of encoded bit sequences. The method also involves processing the plurality of encoded bit sequences by interleaving and tone mapping the encoded bit sequences with respect to a plurality of resource units (RUs) on either or both of an aggregate-RU basis and an individual-RU basis to generate a plurality of processed bit sequences. The method further involves transmitting the plurality of processed bit sequences over the plurality of RUs. 1. A method , comprising:performing joint encoding of a plurality of information bits to generate a plurality of encoded bit sequences;processing the plurality of encoded bit sequences by interleaving and tone mapping the encoded bit sequences with respect to a plurality of resource units (RUs) on either or both of an aggregate-RU basis and an individual-RU basis to generate a plurality of processed bit sequences; andtransmitting the plurality of processed bit sequences over the plurality of RUs.2. The method of claim 1 , wherein the processing of the plurality of encoded bit sequences comprises interleaving and tone mapping the encoded bit sequences on the aggregate-RU basis by:interleaving the plurality of encoded bit sequences with respect to an aggregate of the plurality of RUs to provide a plurality of interleaved bit sequences;tone mapping the plurality of interleaved bit sequences with respect to the aggregate of the plurality of RUs to provide the plurality of processed bit sequences; andparsing the plurality of processed bit sequences.3. The method of claim 2 , wherein the interleaving of the plurality of encoded bit sequences comprises interleaving claim 2 , by a binary convolutional coding (BCC) interleaver claim 2 , the plurality of encoded bit sequences with respect to one or more sizes of RUs with corresponding ...

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06-04-2017 дата публикации

SUPPORT FOR ASYNCHRONOUS ADAPTATION TO UPLINK AND DOWNLINK TRAFFIC DEMANDS FOR WIRELESS COMMUNICATION

Номер: US20170099130A9
Принадлежит:

Technology is discussed to allow transmission points within a Wireless Wide Area Network (WWAN) to adapt to Up Link (UL) and Down Link (DL) traffic demands independently. To mitigate potential interference arising from transmission points scheduled for conflicting UL and DL transmissions, measurements between transmission points can be made to indicate a level of coupling. Based on the various levels of coupling between transmission points, clusters can be formed. Where a high level of coupling is present, transmission points can be included in a common cluster. Where a low level of coupling is present, they can be isolated. Transmission points within the same cluster are scheduled with a common pattern of UL and DL transmissions to avoid interference. Transmission points in different clusters can have different patterns of UL and DL transmission to independently adapt to the relative demands for UL and DL transmissions experienced within these different clusters. 1. A method for interference management and traffic adaptation in a wireless network with different Up Link and Down Link time slots and adaptive , asynchronous directional traffic resource allocation comprising:measuring, at a first eNodeB, a unit of coupling information between the first eNodeB and an adjacent eNodeB;making a clustering determination based on the unit of coupling information, wherein the clustering determination comprises one of a first determination that the first eNodeB and the adjacent eNodeB belong in a common cluster and a second determination that the first eNodeB and the adjacent eNodeB are isolated; andconfiguring the first eNodeB and the adjacent eNodeB with a common Up Link-Down Link (UL-DL) configuration where the first determination has been made and configuring the first eNodeB with a first UL-DL configuration independently from a potentially differing UL-DL configuration pertaining to the adjacent eNodeB where the second determination has been made.2. The method of claim 1 ...

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28-03-2019 дата публикации

RATE ADAPTATION METHOD USING BIT ERROR RATE FOR MULTIMEDIA SERVICE AND APPARATUS THEREFOR

Номер: US20190097752A1
Автор: CHA Ji Hun, CHO Yong Ju

Rate adaptation is carried out using bit error rate (BER) to enable effective multimedia transmission. The BER can be estimated using signal strength in a MAC layer and modulation information (FIGS. -), and can be compatibly used in different wireless networks by means of message standardization. 1. An apparatus of receiving multimedia , the apparatus comprising:a message generator configured to generate a message including an indicator indicating a layer where a bit error rate is generated among a plurality of different layers including at least one of a physical (PHY) layer and an MAC (Media Access Control) layer,wherein the message generator is implemented in a processor.2. The apparatus of claim 1 ,wherein the message further includes a parameter indicating the bit error rate, andwherein the indicator indicating the layer where the bit error rate is generated belongs to part of the parameter indicating the bit error rate.3. The apparatus of claim 1 , further comprising:a transmitter configured to transmit the indicator indicating the layer where the bit error rate is generated and the generated bit error rate to a transmitting apparatus or to transmit a channel condition to the transmitting apparatus,wherein the channel condition is generated using the indicator indicating the layer where the bit error rate is generated and the bit error rate.4. The apparatus of claim 1 , wherein the indicator indicating the layer where the bit error rate is generated is delivered between layers of a receiving apparatus through a cross layer interface (CLI).5. An apparatus of transmitting multimedia claim 1 , the apparatus comprising:a message receiver configured to receive a message including an indicator indicating a layer where a bit error rate is generated among a plurality of different layers including at least one of a physical (PHY) layer and an MAC (Media Access Control) layer.6. The apparatus of claim 5 , wherein the bit error rate is estimated and generated using side ...

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12-05-2022 дата публикации

Packet transmission method and apparatus, and system

Номер: US20220150176A1
Автор: Chuang WANG, Delei Yu, Rui Meng
Принадлежит: Huawei Technologies Co Ltd

A packet transmission method and apparatus, and a system. The method includes: after receiving a first packet, a first device determines, based on a condition met by a first number carried in the first packet, a manner of sending the first packet. When the first number of the first packet meets a first condition, a second device determines a second cycle label corresponding to a first cycle label and sends the first packet to a third device in a cycle corresponding to the second cycle label. When the first number of the first packet meets a second condition, the second device determines a third cycle label corresponding to the first cycle label and sends the first packet to the third device in a cycle corresponding to the third cycle label.

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28-03-2019 дата публикации

INFORMATION TRANSMISSION METHOD AND DEVICE

Номер: US20190098650A1
Автор: Tang Hai

Embodiments of the present application provide an information transmission method and device, capable of transmitting reference signals and data by using different sub-carrier intervals, so as to support data having different sub-carrier intervals to use reference signals having the same sub-carrier intervals, thereby inhibiting the interference between reference signals, reducing the channel estimation complexity, and improving the communication performance. The method comprises: a first transmitting end transmits, on a first symbol in a first time-frequency region, a first signal by using a first sub-carrier interval, the first signal being a reference signal; the first transmitting end transmits, on a second symbol in the first time-frequency region, a second signal by using a second sub-carrier interval, the second signal being a data signal or control signal, wherein the first sub-carrier interval is different from the second sub-carrier interval, and the size of the first time-frequency region is the size of the minimum time-frequency scheduling unit of the data signal. 1. A method for transmitting information , comprising:transmitting, by a first sender, first signals via a first symbol, with a first subcarrier spacing, of a first time-frequency region, the first signals being reference signals; andtransmitting, by a first sender, first signals via a second symbol, with a second subcarrier spacing, of a first time-frequency region, the second signals being data signals or control signals, whereinthe first subcarrier spacing is different from the second subcarrier spacing, and a size of the first time-frequency region is a size of a minimum time-frequency scheduling unit of data signals.2. The method of claim 1 , wherein the first signals are configured for a receiver to demodulate the second signals.3. The method of claim 2 , whereintransmitting, by the first sender, the first signals via the first symbol, with the first subcarrier spacing, of the first time- ...

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12-04-2018 дата публикации

DYNAMICALLY PARTITIONING MEDIA STREAMS

Номер: US20180102870A1
Автор: Hassan Amer
Принадлежит:

Systems, methods, and software technology for partitioning media streams is disclosed herein. In an implementation, an application partitions an encoded media stream into multiple sub-streams having different code rates relative to each other. The sub-streams may then be transmitted to different wireless access points. A change in a monitored performance of at least one of the wireless access points may drive a modification to the partitioning of the media stream such that the code rates change relative to each other. 1. A computing apparatus comprising:one or more computer readable storage media;a processing system operatively coupled with the one or more computer readable storage media; anda media application comprising program instructions stored on the one or more computer readable storage media that, when read and executed by the processing system, direct the processing system to at least:during a multimedia session, partition a media stream for the multimedia session into a plurality of sub-streams having different code rates relative to each other;transmit the plurality of sub-streams to a plurality of wireless access points during the multimedia session; andat times during the multimedia session, implement a modification to the different code rates in response to a change in a monitored performance of at least one of the wireless access points.2. The computing apparatus of wherein the program instructions further direct the processing system to report the monitored performance of each of the plurality of wireless access points to a partition control service that determines a schema by which to partition the media stream based at least in part on the monitored performance.3. The computing apparatus of wherein the program instructions further direct the processing system to receive an update to the schema from the partition control service that identifies the modification to implement with respect to the different code rates.4. The computing apparatus of ...

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04-04-2019 дата публикации

Communicating uci in autonomous uplink transmissions

Номер: US20190104535A1
Принадлежит: Lenovo Singapore Pte Ltd

Apparatuses, methods, and systems are disclosed for communicating uplink control information (“UCI”) with cyclic redundancy check (“CRC”) in an autonomous uplink (“AUL”) transmission. One apparatus includes a processor and a transceiver that receives a control signal to enable AUL transmission. The processor determines to transmit data in an AUL transmission and generates UCI for the AUL transmission, wherein the UCI comprises a CRC, wherein the UCI further indicates an identifier of the apparatus. The processor transmits, via the transceiver, the UCI with the AUL transmission, wherein the AUL transmission comprises the UCI.

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21-04-2016 дата публикации

Method and apparatus for determining and reporting channel quality indicator for temporally uncorrelated channels

Номер: US20160112163A1
Принадлежит: Qualcomm Inc

Various aspects of the disclosure provide a method of operating a user equipment (UE) to determine and report a throughput enhancing channel quality indicator (CQI) value when a physical channel between the UE and a base station is temporally uncorrelated. Reporting such CQI value may maximize the throughput of the channel when it remains temporally uncorrelated. In one aspect of the disclosure, the UE communicates with a base station utilizing a channel and determines that the channel is temporally uncorrelated. The UE further determines a plurality of CQIs in a first CQI reporting mode and computes the respective throughputs of the channel based on the plurality of CQIs. In addition, the UE selects a CQI of the plurality of CQIs corresponding to the highest throughput among the plurality of throughputs, and reports the selected CQI to the base station in a second CQI reporting mode while the channel remains temporally uncorrelated.

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02-06-2022 дата публикации

Radio (nr) short and long duration physical uplink control channel (pucch) design

Номер: US20220174663A1
Принадлежит: Apple Inc

Technology for a user equipment (UE) operable to encode a New Radio (NR) short duration physical uplink control channel (PUCCH) for transmission to a Next Generation NodeB (gNB) is disclosed. The UE can identify uplink control information (UCI) for the UE. The UE can multiplex, using frequency division multiplexing (FDM) at the UE, the UCI and a pseudo-random sequence associated with a demodulation reference signal (DMRS) onto a plurality of subcarriers in one or more physical resource blocks (PRBs) of one or more orthogonal frequency division multiplexing (OFDM) symbols. The UE can encode the UCI and the pseudo-random sequence associated with the DMRS multiplexed onto the plurality of subcarriers of the one or more OFDM symbols for transmission on the NR short duration PUCCH to the gNB.

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10-07-2014 дата публикации

PHASED ARRAY TRANSMISSION DEVICE

Номер: US20140192923A1
Принадлежит: Panasonic Corporation

Transmission outputs of a plurality of transmission branches () are extracted by coupler sections (). Branch detectors () respectively detect the levels of the extracted signals of the respective transmission branches and a combination detector () detects an output obtained by combining two extracted outputs from the transmission branches by a signal combining section (). An amplitude error is detected and corrected by comparing output levels of the branch detectors (), and a phase error is detected and corrected by an output level of the combination detector (). 1. A phased array transmission device comprising:a first transmission branch and a second transmission branch, each including:a transmitter, configured to transmit a transmission signal in a wireless frequency;a phase adjuster, configured to adjust a phase of the transmission signal;an amplitude adjuster, configured to adjust an amplitude of the transmission signal;an antenna section, configured to radiate an output signal from the transmitter into a space; anda coupler section, configured to extract a part of an output from the transmitter;a first branch detector and a second branch detector, configured to detect levels of outputs from the coupler sections of the first and second transmission branches, respectively;a signal combining section, configured to combine outputs from the coupler sections of the first and second transmission branches;a combination detector, configured to detect a level of an output from the signal combining section;an amplitude controller, configured to control the amplitude adjuster according to the outputs detected by the first and second branch detectors; anda phase controller, configured to control the phase adjuster according to the output detected by the combination detector.2. A phased array transmission device comprising:a first transmission branch and a second transmission branch, each including:a transmitter, configured to transmit a transmission signal in a wireless ...

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02-04-2020 дата публикации

Noise tracking within transmission time intervals in wireless communications

Номер: US20200106588A1
Принадлежит: Qualcomm Inc

Methods, systems, and devices for wireless communications are described that support noise tracking within transmission time intervals (TTIs) in wireless communications. A transmitting user equipment (UE) in direct communications with a receiving UE may transmit one or more reference signals that allow the receiving UE to estimate noise during different portions of a TTI and compensate for varying noise levels within the TTI. The transmitting UE may identify different sets of symbols within the TTI that are expected to have different noise levels, and may transmit one or more reference signals that allow for noise estimation at the receiving UE for each of the different sets of symbols.

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13-05-2021 дата публикации

Methods, apparatuses, and computer programs for link adaptation

Номер: US20210143931A1
Принадлежит: Telefonaktiebolaget LM Ericsson AB

Apparatus and methods for link adaptation for downlink transmissions in which the quality of the downlink radio channel is predicted with improved accuracy. For example, predicted channel gains are determined based on uplink transmissions on a per frequency sub-band basis and these predicated channel gains are then used in a link adaptation process for a downlink transmission.

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13-05-2021 дата публикации

METHOD FOR TRANSMITTING ANALYSIS-RELEVANT DATA, TRANSMITTER AND SYSTEM

Номер: US20210143935A1
Принадлежит:

The invention relates to a method for transmitting analysis-relevant data from a transmitter (), in which the analysis-relevant data is present, to a receiver (), in which data analyses can be performed. In order to improve the method for transmitting analysis-relevant data from the transmitter () to the receiver (), according to the invention one selection rule () to be applied to the analysis-relevant data is selected for a data transmission from a plurality of predefinable selection rules () for the selection of data to be transmitted from the analysis-relevant data, wherein the selection of the selection rule () to be applied for this data transmission is dependent on a data analysis applied to the data to be transmitted and on a state of the data link () between the transmitter () and the receiver (). Moreover, the data to be transmitted is selected from the analysis-relevant data according to the selection rule () selected and the data to be transmitted is transmitted from the transmitter () to the receiver (). 124. A method for transferring analysis-relevant data from a transmitter () , at which the analysis-relevant data is available , to a receiver () , at which data analyses are able to be performed , [{'b': 30', '26', '30', '6', '2', '4, 'for a data transfer, a selection rule () to be applied to the analysis-relevant data is selected from a plurality of predefinable selection rules () for the selection of data to be transferred from the analysis-relevant data, wherein the selection of the selection rule () to be applied for this data transfer is dependent upon a data analysis provided on the data to be transferred and upon a status of the data connection () between the transmitter () and the receiver (),'}, {'b': '30', 'the data to be transferred is selected from the analysis-relevant data according to the selected selection rule () and'}, {'b': 2', '4, 'the data to be transferred is transferred from the transmitter () to the receiver ().'}], ' ...

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03-05-2018 дата публикации

Probing for Increased Capacity in Reliable Low-Latency Communication

Номер: US20180123732A1
Принадлежит:

A method is proposed for adjusting transmission properties associated with data transfer in time slots of predetermined length, the method comprises transmitting a first transport block S using a set of transport transmission properties to a receiving node. A probing block S is transmitted to the receiving node using a set of probing transmission properties comprising a reduced robustness in relation to the set of transport transmission properties. The set of transport transmission properties is reconfigured for further transport blocks based on information communicated by the receiving node indicative of success of decoding of the probing block by the receiving node. 147-. (canceled)48. A method performed in a transmitting node of a radio network for adjusting transmission properties for data transfer , the method comprising:transmitting a first transport block to a receiving node using a set of transport transmission properties;transmitting a probing block to the receiving node using a set of probing transmission properties resulting in a reduced transmission robustness in relation to the set of transport transmission properties used for the first transport block;reconfiguring the set of transport transmission properties for further transport blocks based on information communicated by the receiving node indicative of success of decoding of the probing block by the receiving node.49. The method according to claim 48 , further comprising at least one of:transmitting a second transport block using the set of transport transmission properties reconfigured after transmitting the probing block andreceiving information indicative of successful decoding of the first transport block.50. The method according to claim 48 , wherein reconfiguring comprises adjusting at least a part of the set of transport transmission properties to match a respective part of the set of probing transmission properties.51. The method according to claim 48 , wherein reconfiguring comprises ...

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07-08-2014 дата публикации

HIGH DYNAMIC RANGE AMAM PREDISTORTION

Номер: US20140219391A1
Принадлежит:

A predistortion function is evaluated with in-phase (I) and quadrature (Q) data words as arguments, while additive I and Q data words are generated in accordance with a comparison of the I and Q data words with a full scale value that generates maximum current in a digital power amplifier. The additive I and Q data words are added to the computed I and Q data words to produce predistorted I and Q data words. The predistorted I and Q data words are provided in a sequence to the digital power amplifier, which generates a corresponding radio-frequency (RF) analog signal. 1. An apparatus to receive a plurality of input in-phase (I) and quadrature (Q) data words provided from respective I and Q data channels , the apparatus comprising:a digital power amplifier generating a radio-frequency (RF) analog signal in accordance with a sequence of predistorted digital I and Q data words generated from the respective input I and Q data words and generating maximum current when an input data word provided thereto is a full scale value; and a multiplicative stage to evaluate a predetermined predistortion function with each of the input I and Q data words as arguments to generate computed I and Q data words;', 'an additive stage to respectively generate additive I and Q data words in accordance with a comparison of the respective values of the input I and Q data words and the full scale value; and', 'an adder to add the additive I and Q data words to the respective computed I and Q data words to produce the corresponding predistorted I and Q data words., 'a predistortion processor, comprising2. The apparatus of claim 1 , wherein the multiplicative stage generates the computed I and Q data words to be substantially equal to the predistorted I and Q data words when the input I and Q data words are less than a predetermined threshold.3. The apparatus of claim 2 , wherein the additive stage generates the additive I and Q data words as non-zero values when the respective values of the ...

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02-05-2019 дата публикации

Dynamically partitioning media streams

Номер: US20190132078A1
Автор: Amer Hassan
Принадлежит: Microsoft Technology Licensing LLC

Systems, methods, and software technology for partitioning media streams is disclosed herein. In an implementation, an application partitions an encoded media stream into multiple sub-streams having different code rates relative to each other. The sub-streams may then be transmitted to different wireless access points. A change in a monitored performance of at least one of the wireless access points may drive a modification to the partitioning of the media stream such that the code rates change relative to each other.

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28-05-2015 дата публикации

CHANNEL ACCESS DEFERRAL MECHANISM

Номер: US20150146700A1
Принадлежит:

A method for confirming receipt of an aggregated data frame containing one or more decoding errors is disclosed. A wireless device receives the aggregated data frame from another device over a wireless channel, determines a transmit duration of the aggregated data frame, and defers access to the channel for a time period selected as either an EIFS duration or a DIFS duration based, at least in part, on the transmit duration, and then transmits a block acknowledgement frame to the other device after the time period. 1. A method , performed by a wireless device , for confirming receipt of aggregated data containing one or more decoding errors , the method comprising:determining a transmit duration of an aggregated data frame received from another device over a wireless channel; anddeferring access to the channel for a time period selected as either an extended interframe space (EIFS) duration or a distributed coordination function (DCF) interframe space (DIFS) duration based, at least in part, on the transmit duration.2. The method of claim 1 , wherein:the time period is selected as the EIFS duration when the transmit duration is less than or equal to a specified duration; andthe time period is selected as the DIFS duration when the transmit duration is greater than the specified duration.3. The method of claim 1 , wherein the deferring comprises:preventing the wireless device from selecting the EIFS duration when the transmit duration is less than or equal to a specified duration; andallowing the wireless device to select the EIFS duration when the transmit duration is greater than the specified duration.4. The method of claim 1 , wherein the transmit duration is determined using a number of data symbols used to transmit the aggregated data frame to the wireless device.5. The method of claim 4 , wherein:the time period is selected as the EIFS duration when the number of data symbols is less than or equal to a specified number; andthe time period is selected as the ...

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08-09-2022 дата публикации

METHOD AND APPARATUS FOR DETERMINING TRANSPORT BLOCK SIZE IN COMMUNICATION OR BROADCASTING SYSTEM

Номер: US20220286223A1
Принадлежит:

The present disclosure relates to a communication technique that combines, with IoT technology, 5G communication system for supporting a higher data transfer rate than a 4G system, and a system therefor. The present disclosure can be applied to intelligent services, such as smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail businesses, security and safety related services, etc. on the basis of 5G communication technologies and IoT related technologies. Disclosed, in the present invention, are a method and an apparatus for determining the size of a transport block in a communication or broadcasting system. 1. A method performed by a terminal in a wireless communication system , the method comprising:receiving, from a base station, control information for scheduling downlink data;identifying a number of temporary information bits based on a modulation order and a code rate of the downlink data, the modulation order and the code rate being associated with the control information;identifying a transport block size (TBS) based on the code rate and the number of temporary information bits; anddecoding the downlink data based on the identified TBS,wherein the TBS is a number identified by subtracting 24 from a multiple of both 8 and a number of code blocks (CBs) for identifying the TBS, andwherein the number of CBs for identifying the TBS is identified based on a first determination whether the code rate is smaller than or equal to 1/4, followed by a second determination associated with the number of temporary information bits based on the first determination.4. The method of claim 1 , wherein claim 1 , in case that the code rate for the downlink data is larger than 1/4 and the number of temporary information bits is equal to or smaller than 8424 claim 1 , the number of CBs for identifying the TBS is 1.5. The method of claim 1 , wherein the number of temporary information bits is identified based on N×Q×R×v ...

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10-06-2021 дата публикации

Transmitter, receiver, and signal processing method thereof

Номер: US20210176004A1
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A transmitter and receiver of a broadcasting signal and a method of processing the broadcasting signal are provided. The transmitter includes: a segmenter configured to segment an L1 signaling of a frame into a plurality of segmented L1 signalings such that each of the segmented L1 signalings has bits a number of which is equal to or smaller than a predetermined number; and an encoder configured to perform a Bose, Chaudhuri, Hocquenghem (BCH) and a low density parity check (LDPC) encoding, or the LDPC encoding without the BCH encoding, with respect to the segmented L1 signalings.

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25-05-2017 дата публикации

METHODS AND ARRANGEMENTS RELATING TO TRANSMISSION OF ADDITIONAL INFORMATION FROM A TRANSMITTING DEVICE TO A RECEIVING DEVICE IN A WIRELESS COMMUNICATIONS NETWORK

Номер: US20170149534A1
Принадлежит: Telefonaktiebolaget lM Ericsson (publ)

A transmitting device () and a receiving device () in a wireless communications network (). The transmitting device () determines () additional information to transmit to the receiving device (). The transmitting device () determined () an order of different circular shifts of repeated blocks of data as a set of transmission parameters indicating the additional information, each circular shift shifting bits differently. The transmitting device () then transmits () information to the receiving device (), which receives the information, using the determined set of transmission parameters, thereby indicating the additional information to the receiving device (). 1. A method , performed in a transmitting device , for transmitting additional information to a receiving device in a wireless communications network , wherein the method comprises:determining additional information to transmit to the receiving device;determining an order of different circular shifts of repeated blocks of data as a set of transmission parameters indicating the additional information, each circular shift shifting bits differently; andtransmitting information to the receiving device using the determined set of transmission parameters, thereby indicating the additional information to the receiving device.2. The method of claim 1 , wherein the transmitting device determines to send one or more information bits as said additional information to the receiving device claim 1 , said one or more information bits being mapped to a certain order of said different circular shifts claim 1 , which certain order indicates said one or more information bits implicitly at the receiving device claim 1 , said determined order being determined as said certain order.3. The method of claim 1 , wherein the different circular shifts are used during different intervals claim 1 , respectively claim 1 , when transmitting the information claim 1 , each interval comprising a sub-set of transmissions over a longer claim 1 , ...

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21-08-2014 дата публикации

Adjustable transmitter power for high speed links with constant bit error rate

Номер: US20140233622A1
Автор: Andrew Martwick
Принадлежит: Individual

A method and apparatus for dynamically adjusting power of a transmitter is herein described. A transmitter transmits a pattern to a receiver at a differential voltage. The length of the pattern, in one embodiment, is selected to be a reasonable length training pattern, as not to incur an extremely long training phase. If errors are detected at the receiver in the pattern, the transmitter steps the differential voltage until errors are not detected in the pattern at the receiver. The differential voltage, where no errors are detected, is scaled by a proportion of a target confidence level to a measured confidence level associated with the reasonable length training pattern. As a result, a training phase is potentially reduced and power is saved while not sacrificing confidence levels in error rates in the data exchange between the transmitter and receiver.

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21-08-2014 дата публикации

GENERAL PHASE PERTURBATION METHOD

Номер: US20140233674A1
Автор: ABREU Eduardo, Harel Haim
Принадлежит: GOOGLE INC.

A method for modifying a signal transmitted from a mobile communication device comprising perturbing a transmit diversity parameter from its nominal value by modulating the parameter with respect to the nominal value in alternating directions, receiving a feedback signal including feedback information relating to the modified signal as received at a feedback device, and based at least on the feedback information, adjusting the nominal value of the transmit diversity parameter by increasing, decreasing, or preserving the nominal value. The perturbations are selected to minimize phase discontinuities. 1. A method of modifying a signal transmitted from a modifying communication device in communication with a feedback communication device , comprising:perturbing a transmit diversity parameter from its nominal value at a perturbation rate;receiving a feedback signal at a feedback rate from the feedback communication device, the feedback signal including feedback information relating to the receipt of the perturbed signal at said feedback communication device; andbased on said feedback communication, adjusting the nominal value of said transmitted diversity parameter by a differential value, wherein said differential value is a fraction less than one of said nominal value.2. A method of transmitting a signal from a transmitter to a receiver over a communication channel , the transmitter having a first and a second antenna transmitting respective first and second components of the signal , the method comprising the steps of:receiving by said transmitter of a nominal phase difference between said first and second component as perceived at the receiver; andperturbing at least one of said first and second components by differential phase, wherein said differential phase being a fractional value of said nominal phase difference.3. The method of wherein the transmitter transmits to the receiver a transmit diversity parameter claim 2 , and wherein the transmitter receives from a ...

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31-05-2018 дата публикации

MULTICARRIER ON-OFF KEYING WAVEFORM CODING

Номер: US20180152333A1
Принадлежит:

Methods, systems, and devices for wireless communication are described that provide for generating a multicarrier wakeup signal that is modulated using multiple on-off keying (OOK) patterns. In some cases, the OOK pattern may be constructed using one or more of the following techniques: forward error correction (FEC) coding, spreading, encoding (e.g., DC balance encoding such as Manchester encoding), and orthogonal frequency division multiplexing (OFDM) overlay mapping. The resulting signal may serve to increase the sensitivity of the receiver. The OOK patterns may include on portions and off portions that are indicative of different bit values, such as a one bit or a zero bit. The multicarrier wakeup signal may be decoded by a first radio of a wireless device that compares the energy of the signal over different time periods to determine the bit value. Once determined, the wireless device may choose to activate a second radio for communication. 1. An apparatus for wireless communications , in a system comprising:a memory that stores instructions; and generate a multicarrier waveform based at least in part on a first plurality of subcarriers;', 'modulate the multicarrier waveform with a plurality of on-off keying (OOK) patterns to generate a multicarrier wakeup signal, each of the plurality of OOK patterns including one or more on portions and one or more off portions, a first OOK pattern to generate a first waveform representing a first bit value, and a second OOK pattern to generate a second waveform representing a second bit value; and', 'transmit the generated multicarrier wakeup signal to a wakeup radio of the wireless device., 'a processor coupled with the memory, wherein the processor and the memory are configured to2. The apparatus of claim 1 , wherein the multicarrier waveform comprises a fixed sequence of tones for the first plurality of subcarriers in symbol periods of the one or more on portions.3. The apparatus of claim 2 , wherein the fixed sequence of ...

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28-08-2014 дата публикации

METHOD OF CONTROLLING REVERSE TRANSMISSION IN A MOBILE COMMUNICATION SYSTEM

Номер: US20140241288A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

An apparatus and method for controlling a reverse data rate in a mobile station. The method including determining a bit of a multi-bit control channel information based on at least two of a current data rate, transmission power, and an amount of data stored in a buffer of the mobile station; and transmitting the multi-bit control channel information to a base station. The bit of the multi-bit control channel information is determined based on whether the mobile station has power available to transmit at a higher reverse data rate. 1determining a bit of a multi-bit control channel information based on at least two of a current data rate, transmission power, and an amount of data stored in a buffer of the mobile station; andtransmitting the multi-bit control channel information to a base station,wherein the bit of the multi-bit control channel information is determined based on whether the mobile station has power available to transmit at a higher reverse data rate.. A method of controlling a data transmission of a mobile station, the method comprising: This application is a Continuation of U.S. application Ser. No. 12/559,901, which was filed in the U.S. Patent and Trademark Office on Sep. 15, 2009, which was a Continuation of U.S. application Ser. No. 10/109,740, which was filed in the U.S. Patent and Trademark Office on Mar. 29, 2002, and issued as U.S. Pat. No. 7,609,635, and claims priority to an application filed in the Korean Industrial Property Office on Mar. 29, 2001 and assigned Serial No. 10-2001-0016660, the content of each of which is incorporated herein by reference.1. Field of the InventionThe present invention relates generally to a transmission controlling method in a mobile communication system, and in particular, to a method of controlling reverse transmission.2. Description of the Related ArtWith the phenomenal growth of mobile communication technology, many different mobile communication systems have been proposed and are currently being field- ...

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09-06-2016 дата публикации

SUPPORT FOR ASYNCHRONOUS ADAPTATION TO UPLINK AND DOWNLINK TRAFFIC DEMANDS FOR WIRELESS COMMUNICATION

Номер: US20160164656A1
Принадлежит:

Technology is discussed to allow transmission points within a Wireless Wide Area Network (WWAN) to adapt to Up Link (UL) and Down Link (DL) traffic demands independently. To mitigate potential interference arising from transmission points scheduled for conflicting UL and DL transmissions, measurements between transmission points can be made to indicate a level of coupling. Based on the various levels of coupling between transmission points, clusters can be formed. Where a high level of coupling is present, transmission points can be included in a common cluster. Where a low level of coupling is present, they can be isolated. Transmission points within the same cluster are scheduled with a common pattern of UL and DL transmissions to avoid interference. Transmission points in different clusters can have different patterns of UL and DL transmission to independently adapt to the relative demands for UL and DL transmissions experienced within these different clusters. 1. A method for interference management and traffic adaptation in a wireless network with different Up Link and Down Link time slots and adaptive , asynchronous directional traffic resource allocation comprising:measuring, at a first eNodeB, a unit of coupling information between the first eNodeB and an adjacent eNodeB;making a clustering determination based on the unit of coupling information, wherein the clustering determination comprises one of a first determination that the first eNodeB and the adjacent eNodeB belong in a common cluster and a second determination that the first eNodeB and the adjacent eNodeB are isolated; andconfiguring the first eNodeB and the adjacent eNodeB with a common Up Link-Down Link (UL-DL) configuration where the first determination has been made and configuring the first eNodeB with a first UL-DL configuration independently from a potentially differing UL-DL configuration pertaining to the adjacent eNodeB where the second determination has been made.2. The method of claim 1 ...

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08-06-2017 дата публикации

METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING PACKETS IN BROADCAST AND COMMUNICATION SYSTEM

Номер: US20170163373A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

The present invention provides a method and an apparatus for transmitting and receiving packets in a broadcast and communication system. The present invention comprises: generating a repair packet by encoding a source packet with an error correction code; and transmitting the source packet to a first network and transmitting the repair packet to a second network, wherein the number of repair packets is determined according to the maximum transmission delay values of the first and second networks. 1. A method for transmitting packets in a broadcast and communication system , the method comprises:generating repair packets by encoding source packets with error correction codes, andtransmitting the source packets over a first network and transmitting the repair packets over a second network,wherein the number of repair packets is determined according to a maximum transmission delay of the first network.2. The method of claim 1 , further comprising: transmitting maximum transmission delays and error correction configuration information of the source packets and repair packets before transmitting the source packets and the repair packets.3. The method of claim 1 , wherein the maximum delay of the second network is smaller than the maximum delay of the first network4. The method of claim 1 , wherein the first network is a communication network claim 1 , and the second network is a broadcasting network.5. The method of claim 1 , wherein for the source packets and the repair packets claim 1 , an MPEG Media Transport (MMT) protocol is applied claim 1 , andwherein the maximum transmission delays of the source packet and the repair packet are transmitted in a hypothetical receiver buffer model (HRBM) message, andwherein the error correction configuration information is transmitted in an Application Layer Forward Error Correction (AL-FEC) message.6. A method for receiving packets in a broadcast and communication system claim 1 , the method comprises:receiving service signaling, ...

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08-06-2017 дата публикации

METHOD AND APPARATUS FOR INDICATING A FRAME TYPE USING A PREAMBLE

Номер: US20170163776A1
Принадлежит:

Disclosed are a method and an apparatus for indicating a frame type using a physical layer convergence protocol header. A method for determining a frame type using a PLCP header may comprise: a step of demodulating a frame type contained in an SIG of the PLCP header so as to acquire information indicating a physical service data unit (PSDU) of a frame; and a step of acquiring frame information required for demodulating the frame contained in the SIG dependently on the information indicating PSDU. Thus, unnecessary information may not be additionally demodulated to thereby improve demodulation efficiency and reduce unnecessary power consumption. 114-. (canceled)15. A method for transmitting a data block in a wireless local area network , the method comprising:configuring, by a transmitter, a physical layer protocol data unit (PPDU) that includes a short training field, a long training field and a signal field, wherein information fields included in the signal field are determined by a frame type of the PPDU; andtransmitting, by the transmitter, the PPDU to a receiver,wherein the signal field indicates whether the PPDU is used to carry a null data packet (NDP) frame that does not have a data field,wherein when signal field does not indicate the PPDU is used to carry the NDP frame, the signal field includes a modulation and coding scheme (MCS) field indicating an MCS index used for the PPDU,wherein when signal field indicates the PPDU is used to carry the NDP frame, the signal field indicates a type of the NDP frame and does not include the MCS field.16. The method of claim 15 , wherein when signal field does not indicate the PPDU is used to carry the NDP frame claim 15 , the signal field further includes a bandwidth field claim 15 , a stream field claim 15 , and a coding type field claim 15 , the bandwidth field indicating a bandwidth used for the PPDU claim 15 , the stream field indicating a number of spatial streams used for the PPDU claim 15 , the coding type field ...

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08-06-2017 дата публикации

APPARATUS FOR TRANSMITTING BROADCAST SIGNALS, APPARATUS FOR RECEIVING BROADCAST SIGNALS, METHOD FOR TRANSMITTING BROADCAST SIGNALS AND METHOD FOR RECEIVING BROADCAST SIGNALS

Номер: US20170164328A1
Принадлежит:

A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals comprises an input formatter to format at least one input stream to output DP (Data Pipe) data corresponding to each of a plurality of DPs, wherein the each of a plurality of DPs carries at least one service or at least one service component, an encoder to encode the DP data, a mapper to map the encoded DP data onto constellations, a time interleaver to time interleave the mapped DP data, a frame builder to build at least one signal frame including the time interleaved DP data, a modulator to modulate data in the built at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme and a transmitter to transmit the broadcast signals having the modulated data. 124-. (canceled)25. A method for transmitting broadcast signals , the method comprising:formatting input stream to output PLP (Physical Layer Pipe) data, wherein the input stream includes at least one null packet and input packets, wherein the formatting further includes:removing sync byte from each input packet,selectively compressing the input packets by transmitting common information of first headers of the input packets once in a data packet, andinserting a second header ahead of at least one input packet, the second header being a header of the data packet, wherein the second header includes mode information indicating whether the compressing of the input packet is applied;FEC (Forward Error Correction) encoding the PLP data;bit interleaving the FEC encoded PLP data;mapping the bit interleaved PLP data onto constellations;time interleaving the mapped PLP data;building at least one signal frame including the time interleaved PLP data;modulating data in the built at least one signal frame by OFDM (Orthogonal Frequency Division Multiplex) scheme; andtransmitting the broadcast signals having the modulated data.26. The method of claim 25 , wherein the ...

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24-06-2021 дата публикации

Block generation method and apparatus, and block receiving method and apparatus

Номер: US20210194624A1
Принадлежит: Huawei Technologies Co Ltd

A block generation method and apparatus, and a block receiving method and apparatus are disclosed. The block generation method includes: generating a first block and a second block, where the first block includes a first block unit, the second block includes a second block unit, a first indicator is configured in the first block unit, and the first indicator is used to indicate whether the second block unit is a control code; and sending the first block and the second block. According to this method, an indicator is configured in a block unit in the first block to indicate whether an adjacent block is a control code, so that a boundary between a control code and a data code is determined, thereby avoiding extra indication information for an indication and reducing overheads of the indication information.

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24-06-2021 дата публикации

Method and apparatus for configuring guard period

Номер: US20210195580A1
Автор: Yuanyuan Li
Принадлежит: Beijing Xiaomi Mobile Software Co Ltd

A method for configuring a guard period includes: determining a target guard duration value corresponding to a guard period; and when data burst transmission is to be performed, sending target data of the data burst transmission to a receiver in the Internet of Vehicles starting from a first time point, where the first time point is a time point having an interval of the target guard duration value from a start time point, and the start time point is a time point at which the data burst transmission is determined to be performed. A guard period can be placed before sending target data, and a number of valid symbols in a subframe for data transmission can be increased by controlling a target guard duration value corresponding to the guard period, reducing performance loss of a terminal and improving performance in the Internet of Vehicles.

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21-05-2020 дата публикации

SYSTEMS AND METHODS TO GENERATE COPIES OF DATA FOR TRANSMISSION OVER MULTIPLE COMMUNICATION CHANNELS

Номер: US20200162191A1
Принадлежит:

Systems and methods to transmit data over multiple communication channels in parallel with forward error correction. Original packets are evenly distributed to the channels as the initial systematically channel-encoded packets. Subsequent channel-encoded packets are configured to be linearly independent of their base sets of channel-encoded packets, where a base set for a subsequent channel-encoded packet includes those scheduled to be transmitted before the subsequent packet in the same channel as the subsequent packet, and optionally one or more initial packets from other channels. The compositions of the sequences of the encoded packets can be predetermined without the content of the packets; and the channel-encoded packets can be generated from the original packets on-the-fly by the transmitters of the channels during transmission. When a sufficient number of packets have been received via the channels, a recipient may terminate their transmissions. 1. A method implemented in a computing apparatus , the method comprising:identifying a data segment to be transmitted via a plurality of parallel communication channels;generating a plurality of original packets of a same length, by partitioning the data segment;generating a plurality of channel-encoded packets using a predetermined function of a random subset of the original packets;for each of the plurality of parallel communication channels, generating a transmission schedule by allocating a respective first subset of the plurality of original packets based on a transmission speed of the corresponding parallel communication channel and by allocating a respective second subset of the plurality of channel-encoded packets;after generating the transmission schedule, transmitting the plurality of original packets and the plurality of channel-encoded packets according to the transmission schedule; andin response to a determination by a recipient device coupled to the plurality of parallel communication channels that a ...

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21-05-2020 дата публикации

Controlling forward error correction and modulation coding scheme for multicast broadcast multimedia services

Номер: US20200163053A1
Автор: Haogang Xu
Принадлежит: Telefonaktiebolaget LM Ericsson AB

A network node initiates a MBMS session providing a multimedia service through a RAN to UEs using a FEC operation providing an initial FEC level, where the multimedia service is concurrently provided through unicast sessions. Feedback reports received from the UEs identify UEs consuming the multimedia service through the MBMS session and identify UEs consuming the multimedia service through the unicast sessions. A ratio is determined of a number of the UEs identified as consuming the multimedia service through the MBMS session to a number of the UEs identified as consuming the multimedia service through the unicast sessions. Responsive to determining that the ratio is less than a target ratio, the FEC level provided by the FEC operation is increased. Responsive to determining that the ratio is greater than the target ratio by a defined margin value, the FEC level provided by the FEC operation is decreased.

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23-06-2016 дата публикации

Wireless Communication System

Номер: US20160182185A1
Автор: TAKEI Ken
Принадлежит:

[Object] 1. A wireless communication system comprising a transmitter that transmits electromagnetic waves in which a polarization direction rotates according to a signal in which data is loaded on a carrier , and a receiver that receives the electromagnetic waves and demodulates the data ,wherein the transmitter imparts angle information indicating a polarization direction for transferring the data to the signal, and sets a rotation frequency of the polarization direction to a frequency lower than a frequency of the carrier, andthe receiver changes the polarization direction of the received electromagnetic waves based on the angle information transferred by the electromagnetic waves.2. The wireless communication system according to claim 1 ,wherein the receiver detects a temporal change in the polarization direction of the received electromagnetic waves, based on the angle information, and changes the polarization direction of the received electromagnetic waves according to the temporal change.3. The wireless communication system according to claim 2 ,wherein when the receiver determines that the detected temporal change in the polarization direction is abnormal, the receiver calculates a vector difference between a normal polarization direction and the detected polarization direction, and changes the polarization direction of the received electromagnetic waves into a direction perpendicular to a direction of the vector difference.4. The wireless communication system according to claim 1 ,wherein the transmitter includes:a polarization rotation frequency generation circuit that sets the rotation frequency; anda transmission frequency generation circuit that generates the carrier.5. The wireless communication system according to claim 2 ,wherein the receiver includes:a first antenna and a second antenna orthogonal to the first antenna;a first detector that detects an output of the first antenna and a second detector that detects an output of the second antenna;a ...

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18-09-2014 дата публикации

METHODS AND SYSTEMS FOR CREST FACTOR REDUCTION IN MULTI-CARRIER MULTI-CHANNEL ARCHITECTURES

Номер: US20140269984A1
Принадлежит: Futurewei Technologies, Inc.

Crest factor reduction (CFR) can be performed on the various carriers of a multi-carrier multi-channel signal prior to modulation and/or beamforming operations in order to improve signal-to-noise ratios (SNRs) in the resulting wireless communication. More specifically, clipping noise is introduced into each of the individual carrier signals prior to application of the beamforming weight vectors, as well as prior to carrier modulation, thereby causing the beamforming weight vectors to be applied to both the signal and the clipping noise. As a result, variations between the signal antenna pattern and the clipping noise antenna pattern are reduced, which mitigates and/or reduces low SNR spatial locations in which the signal would have been drowned out by the clipping noise under conventional CFR. 1. A method for reducing a peak-to-average (PAR) ratio of a multi-carrier wireless signal , the method comprising:generating a first carrier signal and a second carrier signal;introducing clipping noise into the first carrier signal and the second carrier signal, thereby obtaining a first clipped carrier signal and a second clipped carrier signal; andmodulating the first clipped carrier signal and the second clipped carrier signal to obtain a modulated carrier signal.2. The method of further comprising:applying beamforming weights to the first clipped carrier signal and the second clipped carrier signal prior to modulating the first clipped carrier signal and the second clipped carrier signal, wherein the clipping noise is introduced into both the first carrier signal and the second carrier signal prior to application of the beamforming weights.3. The method of claim 2 , wherein a different set of beamforming weights is applied to the first clipped carrier signal than is applied to the second clipped carrier signal.4. The method of claim 1 , wherein introducing clipping noise into the first carrier signal and the second carrier signal comprises:introducing a first clip noise ...

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22-06-2017 дата публикации

COMMUNICATION TECHNIQUES

Номер: US20170181009A1
Принадлежит: ALCATEL LUCENT

Aspects provide methods for controlling user equipment operation in a wireless communications network configured to support communication with the user equipment according to a communication mode which utilises repetition of messaging; computer program products and network nodes operable to perform those methods. One method comprises: determining a modulation and coding regime to be used by the user equipment; identifying a repetition regime to be implemented by the user equipment in conjunction with the modulation and coding regime; and communicating an indication of the determined modulation and coding regime and identified repetition regime to the user equipment. Aspects recognise that when implementing a coverage enhanced region within a network it is possible that fixed repetition levels can be defined for CE-MTC UE. Those fixed repetition levels can be implemented by a network and recognise differences between the CE-MTC UE radio condition. That is to say, the number of repetitions used may correspond to radio condition being experienced at a machine-type communication device: those in poorer coverage regions will be selected to receive a greater number of repetitions than those in a better radio coverage region. The granularity of such repetition levels may subject to a given operator's implementation of a coverage enhanced region. The first aspect recognises that it is possible to implement varying repetition levels for user equipment operating in the coverage enhanced region supported by a network access node. Those varying repetition levels can be configured at the network access node; for example, an eNodeB. 1. A method of controlling user equipment operation in a wireless communications network configured to support communication with said user equipment according to a communication mode which utilises repetition of messaging;said method comprising:determining a modulation and coding regime to be used by said user equipment;identifying a repetition ...

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05-07-2018 дата публикации

Interface Data Transmission Method, Data Transmission Interface, and Interface System

Номер: US20180191461A1
Автор: Li Xuguang, Zheng Guangwei
Принадлежит:

An interface data transmission method, a data transmission interface, and an interface system, where the method includes encoding, by a transmit end in the interface system, original data to obtain encoded data, where the encoding operation includes grouping the original data, the encoded data includes a termination code block indicating that a transmission process of the original data terminates, and the termination code block includes a first synchronization header, a code block type field indicating that the transmission process terminates, and a termination payload, and the first synchronization header indicates that a payload following the first synchronization header includes a control-type payload, and the termination payload may be used to carry a remaining code block after the original data is grouped, and sending, by the transmit end, the encoded data to a receive end. 1. A method for sending interface data , comprising:encoding original data to obtain encoded data, wherein encoding comprises grouping the original data, wherein the encoded data comprises a termination code block indicating that a transmission process of the original data terminates, wherein the termination code block comprises a first synchronization header, a code block type field indicating that the transmission process terminates, and a termination payload, wherein the first synchronization header indicates that a payload following the first synchronization header comprises a control-type payload, and wherein the termination payload is capable of carrying a remaining code block after the original data is grouped; andsending the encoded data to a receive end in an interface system.2. The method according to claim 1 , wherein the encoded data further comprises at least one data code block claim 1 , wherein the at least one data code block precedes the termination code block claim 1 , wherein each of the at least one data code block comprises a second synchronization header and a data ...

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25-09-2014 дата публикации

DISTORTION COMPENSATION DEVICE AND DISTORTION COMPENSATION DEVICE METHOD

Номер: US20140286454A1
Автор: KAWASAKI Toshio
Принадлежит: FUJITSU LIMITED

A distortion compensation device includes: a memory configured to store a first and second table, different addresses being assigned to the first and second table respectively, each of the addresses being related to a distortion compensation coefficient to compensate for a non-linear distortion, a first address in the first table and a second address in the second table corresponding to respective first and second ranges of power or amplitude of a transmission signal, and parts of the first and second ranges overlapping each other; and a processor coupled to the memory and configured to: update the respective distortion compensation coefficients related to the first address and the second address simultaneously, in accordance with a single value of the power or the amplitude, and compensate for the non-linear distortion generated by an amplifier amplifying the power of the transmission signal, by using at least one of the first and second table. 1. A distortion compensation device comprising:a memory configured to store a first table and a second table, different addresses being assigned to the first table and the second table respectively, each of the addresses being related to a distortion compensation coefficient to compensate for a non-linear distortion, a first address in the first table and a second address in the second table corresponding to respective first and second ranges of power or amplitude of a transmission signal, and parts of the first and second ranges overlapping each other; and update the respective distortion compensation coefficients related to the first address and the second address simultaneously, in accordance with a single value of the power or the amplitude, and', 'compensate for the non-linear distortion generated by an amplifier amplifying the power of the transmission signal, by using at least one of the first table and the second table., 'a processor coupled to the memory and configured to2. The distortion compensation device ...

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30-07-2015 дата публикации

Packet Energy Transfer In-Line Communications

Номер: US20150215001A1
Автор: Eaves Stephen Spencer
Принадлежит:

Data is communicated between a digital power transmitter and one or more digital power receivers over a transmission line comprising positive and negative conductors. If the transmitter is sending data to the receiver, a first transmitter electrical switch is selectively operated to increase electrical charge in the transmission-line capacitance. If the receiver is sending data to the transmitter, a first receiver electrical switch is selectively operated to increase electrical charge in the transmission-line capacitance. 1. A method for communicating data between a digital power transmitter and one or more digital power receivers over a transmission line comprising positive and negative conductors , wherein the transmission line has electrical properties that include at least a finite line-to-line capacitance and at least a finite line-to-line resistance , the method comprising:a) if the transmitter is sending data to the receiver,selectively operating a first transmitter electrical switch to increase electrical charge in the transmission-line capacitance by connecting the transmission-line to a transmitter voltage source through a finite resistance or by operating a second transmitter electrical switch to decrease electrical charge by connecting the positive and negative conductors to each other through a finite resistance such that the rate of change in transmission-line voltage alternates between a first voltage slope value and a second voltage slope value, wherein the change in voltage slope is detected and decoded by the receiver to reproduce the data being sent by the transmitter; andb) if the receiver is sending data to the transmitter,selectively operating a first receiver electrical switch to increase electrical charge in the transmission-line capacitance by connecting the transmission lines to a receiver voltage source through a finite resistance or by operating a second receiver electrical switch to decrease electrical charge by connecting the positive ...

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21-07-2016 дата публикации

System Aware Transmitter Adaptation for High Speed Serial Interfaces

Номер: US20160211992A1
Принадлежит:

A high-speed serial interface includes a transmitter having an output module with settings that select an output impedances of the output module and a tuning value for the output impedance, and a receiver having a plurality of compensation modules each to provide a selectable level of equalization to a data bitstream from the transmitter, and a control module that directs the transmitter to successively select each of the tuning values, that directs the compensation modules, for each tuning value, to successively select each of the levels of equalization, that evaluates an indication of a performance level of the receiver for each of the successively selected levels of equalization and for each of the tuning values, and that selects a particular tuning value based upon the indications of the performance level of the receiver. 1. A receiver for a high-speed serial interface , the receiver comprising:a compensation module that provides a selectable level of equalization to a data bitstream from a transmitter of the high-speed serial interface; andcontrol logic that directs the transmitter to successively select each of a plurality of tuning values for an output impedance of the transmitter, that successively selects each of the levels of equalization for each tuning value, that evaluates an indication of a performance level of the receiver for each level of equalization and each tuning value, and that selects a particular tuning value based upon the indications.2. The receiver of claim 1 , further comprising:an analog-to-digital converter module that provides a receiver eye height level for the data bitstream, wherein the performance level comprises a receiver eye height.3. The receiver of claim 2 , wherein the particular tuning value is selected when a particular indication associated with the particular tuning value includes an equalization level that produced a highest receiver eye height.4. The receiver of claim 2 , wherein the particular tuning value is selected ...

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19-07-2018 дата публикации

SYSTEMS AND METHODS TO GENERATE COPIES OF DATA FOR TRANSMISSION OVER MULTIPLE COMMUNICATION CHANNELS

Номер: US20180205491A1
Принадлежит:

Systems and methods to transmit data over multiple communication channels in parallel with forward error correction. Original packets are evenly distributed to the channels as the initial systematically channel-encoded packets. Subsequent channel-encoded packets are configured to be linearly independent of their base sets of channel-encoded packets, where a base set for a subsequent channel-encoded packet includes those scheduled to be transmitted before the subsequent packet in the same channel as the subsequent packet, and optionally one or more initial packets from other channels. The compositions of the sequences of the encoded packets can be predetermined without the content of the packets; and the channel-encoded packets can be generated from the original packets on-the-fly by the transmitters of the channels during transmission. When a sufficient number of packets have been received via the channels, a recipient may terminate their transmissions. 1. A method implemented in a computing apparatus , the method comprising:generating, by the computing apparatus, a plurality of first data packets of a same length from a data segment to be transmitted via a plurality of parallel communication channels; an initial data packet that is one of the first data packets and that is scheduled to be transmitted before data packets in the respective sequence other than the initial data packet; and', 'a subsequent data packet that is a combination of a subset of the first data packets; and, 'identifying, by the computing apparatus from the first data packets, a plurality of packet sequences for the plurality of parallel communication channels respectively, wherein each respective sequence of the plurality of packet sequences includestransmitting, by the computing apparatus, the plurality of sequences of packets in the plurality of parallel communication channels respectively, wherein during the transmitting, a recipient device coupled to the plurality of parallel communication ...

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25-06-2020 дата публикации

Midamble indication and receiving methods and apparatuses

Номер: US20200204417A1
Принадлежит: Huawei Technologies Co Ltd

This application discloses midamble indication and receiving methods and apparatuses. In the method, a first device sends midamble indication information to a second device, where a duration of a midamble indicated by the midamble indication information is greater than or equal to a threshold, and the threshold is related to a processing capability of the second device; and the second device receives the midamble according to the indication information.

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16-10-2014 дата публикации

COMMUNICATION DEVICE AND METHOD FOR CONFIGURING DATA TRANSMISSION

Номер: US20140307827A1
Принадлежит: Realtek Semiconductor Corp.

A communication device includes a plurality of host control interfaces, an interface detector, and a transmitter. The plurality of host control interfaces selectively connect to a connection interface of a host. The interface detector is coupled to the plurality of host control interfaces and utilized for determine an interface specification of the connection interface to generate a detection result. The transmitter is coupled to the interface detector and supports a plurality of transmission power levels. The transmitter is utilized for determining a plurality of transmission configurations, and selecting one of the transmission configurations to communicating with a receiver, wherein each of the transmission configurations determines a transmission power level configuration of the transmitter. 1. A communication device , comprising:a plurality of host control interfaces, arranged for selectively connecting to a connection interface of a host;an interface detector, coupled to the host control interfaces, the interface detector arranged for determining an interface specification of the connection interface to generate a detection result; anda transmitter, coupled to the interface detector supporting a plurality of transmission power levels, the transmitter arranged for determining a plurality of transmission configurations according to the detection result and selecting one from the transmission configurations for data transmission with a receiver, wherein each transmission configuration determines a transmission power level configuration of the transmitter.2. The communication device of claim 1 , wherein the transmitter supports at least one modulation type claim 1 , at least one encoding rate claim 1 , and at least one spatial stream number; and each transmission configuration further determines a modulation type configuration claim 1 , an encoding rate configuration claim 1 , and a spatial stream number configuration.3. The communication device of claim 1 , ...

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13-08-2015 дата публикации

SYSTEMS AND METHODS TO COMPENSATE FOR MEMORY EFFECTS USING ENHANCED MEMORY POLYNOMIALS

Номер: US20150229498A1
Автор: Sulimarski Avi
Принадлежит:

A system for mitigating non-linearity distortions from a memory effect is disclosed. The system includes an enhanced predistortion component, a power amplifier, and a lookup table. The enhanced predistortion component is configured to receive an input signal, to obtain a plurality of enhanced memory polynomials based on a plurality of samples of the input signal and to generate a pre-distorted signal from the input signal according to the enhanced memory polynomials and the plurality of samples of the input signal. The power amplifier is configured to receive the pre-distorted signal and to generate an output signal. 1. A system for mitigating distortions from a memory effect , the system comprising:an enhanced predistortion component configured to receive an input signal, to obtain a plurality of enhanced memory polynomials based on a plurality of samples of the input signal, and to generate a pre-distorted signal from the input signal according to the plurality of enhanced memory polynomials and the plurality of samples of the input signal; anda power amplifier configured to receive the pre-distorted signal and to generate an output signal.2. The system of claim 1 , further comprising a lookup table configured to provide the plurality of enhanced memory polynomials to the enhanced predistortion component.3. The system of claim 1 , wherein the enhanced memory polynomials include coefficients.4. The system of claim 1 , further comprising a feedback path coupled to the enhanced predistortion component.5. The system of claim 4 , wherein the feedback path generates a comparison signal by applying a pre-distortion to the output signal using the plurality of enhanced memory polynomials.6. The system of claim 5 , wherein the feedback path includes an error estimator configured to determine an error and to verify that the error is within a selected threshold.7. The system of claim 1 , wherein the enhanced predistortion component includes a memory polynomial component ...

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12-08-2021 дата публикации

MULTIPLE RESOURCE UNIT SIGNALING IN A WIRELESS LOCAL AREA NETWORK

Номер: US20210250119A1
Принадлежит: NEWRACOM, Inc.

A method is described for transmitting a frame in a wireless network. The method includes setting, by a wireless device, a first field of the frame according to a first characteristic of the frame; setting, by the wireless device, a second field of the frame according to a second characteristic of the frame; setting, by the wireless device, a puncturing field of the frame in response to the first field of the frame meeting a first criteria and the second field of the frame meeting a second criteria, wherein the puncturing field is associated with puncturing a set of sub-channels of a transmission bandwidth of the frame; and transmitting, by the wireless device, the frame based on the transmission bandwidth and according to the set of sub-channels. 1. A method for transmitting a frame in a wireless network , the method comprising:setting, by a wireless device, a first field of the frame according to a first characteristic of the frame;setting, by the wireless device, a second field of the frame according to a second characteristic of the frame;setting, by the wireless device, a puncturing field of the frame in response to the first field of the frame meeting a first criteria and the second field of the frame meeting a second criteria, wherein the puncturing field is associated with puncturing a set of sub-channels of a transmission bandwidth of the frame; andtransmitting, by the wireless device, the frame based on the transmission bandwidth and according to the set of sub-channels.2. The method of claim 1 , wherein the first field indicates the transmission bandwidth of the frame.3. The method of claim 2 , wherein the second field indicates whether the frame is an uplink frame or a downlink frame.4. The method of claim 3 , wherein the first criteria is that the first field indicates that the transmission bandwidth of the frame is equal to or greater than 80 MHz.5. The method of claim 4 , wherein the second criteria is that the second field of the frame indicates that ...

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02-07-2020 дата публикации

METHOD AND APPARATUS FOR DETERMINING TRANSPORT BLOCK SIZE IN COMMUNICATION OR BROADCASTING SYSTEM

Номер: US20200213032A1
Принадлежит:

The present disclosure relates to a communication technique that combines, with IoT technology, 5G communication system for supporting a higher data transfer rate than a 4G system, and a system therefor. The present disclosure can be applied to intelligent services, such as smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail businesses, security and safety related services, etc. on the basis of 5G communication technologies and IoT related technologies. Disclosed, in the present invention, are a method and an apparatus for determining the size of a transport block in a communication or broadcasting system. 1. A method of identifying a transport block size (TBS) by a terminal in a wireless communication system , the method comprising:receiving control information for scheduling from a base station;identifying a number of temporary information bits, based on the control information for scheduling;identifying the TBS, based on the control information for scheduling and the number of temporary information bits; anddecoding received downlink data, based on the identified TBS,wherein the TBS is a multiple of both 8 and a number of temporary code blocks (CBs) identified based on the control information for scheduling.4. The method of claim 1 , wherein claim 1 , in case that the number of temporary information bits is equal to or smaller than 8424 claim 1 , the number of temporary CBs is 1.5. A method of identifying a transport block size (TBS) by a base station in a wireless communication system claim 1 , the method comprising:identifying control information for scheduling;transmitting the control information for scheduling to a terminal;identifying a number of temporary information bits, based on the control information for scheduling;identifying the TBS, based on the control information for scheduling and the number of temporary information bits; andtransmitting downlink data, based on the identified TBS, ...

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10-08-2017 дата публикации

System Aware Transmitter Adaptation for High Speed Serial Interfaces

Номер: US20170230208A1
Принадлежит:

A high-speed serial interface includes a transmitter having an output module with settings that select an output impedances of the output module and a tuning value for the output impedance, and a receiver having a plurality of compensation modules each to provide a selectable level of equalization to a data bitstream from the transmitter, and a control module that directs the transmitter to successively select each of the tuning values, that directs the compensation modules, for each tuning value, to successively select each of the levels of equalization, that evaluates an indication of a performance level of the receiver for each of the successively selected levels of equalization and for each of the tuning values, and that selects a particular tuning value based upon the indications of the performance level of the receiver. 1. A high-speed serial interface , comprising:a transmitter including an output module with a first setting that selects a tuning value from among a plurality of tuning values for an output impedance of the output module; anda receiver including control logic that directs the transmitter to successively select each of the tuning values, that successively selects for each tuning value a level of equalization from a plurality of levels of equalization, that evaluates an indication of a performance level of the receiver for each of the successively selected levels of equalization and for each of the tuning values, selects a particular tuning value based upon the indications of the performance level of the receiver, and that communicates the particular tuning value to the transmitter;wherein the transmitter sets the first setting to select the particular tuning value.2. The high-speed serial interface of claim 1 , wherein the output module further includes a second setting that selects a target output impedance from among a plurality of target output impedances.3. The high-speed serial interface of claim 2 , wherein the second setting is set based ...

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16-07-2020 дата публикации

Data transmission method, apparatus and storage medium

Номер: US20200228147A1
Принадлежит: NTT DOCOMO INC

The present application provides a data transmission method which includes: obtaining statistical characteristics of interferences; determining a total number of coding layers of multi-layer coding and a code rate and transmitting power of each coding layer according to the statistical characteristics of the interferences; processing to-be-transmitted information bits through data re-organization according to the determined total number of coding layers of the multi-layer coding to obtain information bits of each coding layer; coding the information bits of each coding layer respectively according to the determined code rate of each coding layer to obtain a coded data stream of each coding layer; processing the coded data stream of each coding layer through layer mapping and modulation according to the determined transmitting power of each coding layer to obtain a symbol stream to be transmitted; and transmitting the symbol stream to be transmitted.

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16-07-2020 дата публикации

FLEXIBLE DATA TRANSMISSION SCHEME ADAPTIVE TO COMMUNICATION CHANNEL QUALITY

Номер: US20200228229A1
Принадлежит:

Methods and apparatus for transmitting Ethernet data along an Ethernet link with a BASE-T transceiver are disclosed. One exemplary BASE-T Ethernet transceiver includes an Ethernet data framing module having an input interface to receive Ethernet block data bits at a first data rate. Logic associates the Ethernet block data bits with an auxiliary bit and a number of zero bits. An error encoder is coupled to the logic to encode all of the data bits, auxiliary bit and zero bits into an error encoded transport frame having plural error check bits. A symbol mapper receives the error encoded transport frame and transforms the error encoded transport frame into multiple symbols. A transmitter coupled to the symbol mapper transmits the multiple symbols over an Ethernet link at one of a selection of symbol rates. The data rate of data transmitted over the Ethernet link is based on the number of zero bits. 1 a forward error correction encoder to encode plural 4-bit symbol labels into an error encoded transport frame;', 'a symbol mapper to receive the error encoded transport frame and to modulate the error encoded transport frame into a first group of symbols, the symbol mapper including a PAM-16 encoder, and wherein the symbol mapper transforms the error encoded transport frame into multiple one-dimensional PAM-16 encoded 4-bit symbols, each of the 4-bit symbols corresponding to an analog voltage level; and', 'a BASE-T transmitter coupled to the symbol mapper to transmit the first group of symbols over an Ethernet link at one of a selection of symbol rates., 'a BASE-T Ethernet transmit circuit including'}. A BASE-T Ethernet transceiver comprising: This application is a Continuation of U.S. Ser. No. 16/114,084, filed Aug. 27, 2018, entitled FLEXIBLE DATA TRANSMISSION SCHEME ADAPTIVE TO COMMUNICATION CHANNEL QUALITY, which is a Continuation of U.S. Ser. No. 15/175,516, filed Jun. 7, 2016, entitled A FLEXIBLE DATA TRANSMISSION SCHEME ADAPTIVE TO COMMUNICATION CHANNEL QUALITY, ...

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23-07-2020 дата публикации

Enhanced Information Sequences for Polar Codes

Номер: US20200235852A1
Принадлежит:

According to some embodiments, a method of operation of a transmit node in a wireless communication system comprises performing polar encoding of a set of K information bits to thereby generate a set of polar-encoded information bits. The K information bits are mapped to the first K bit locations in an information sequence S. The information sequence Sis a ranked sequence of N information bit locations among a plurality of input bits for the polar encoding where N is equivalent to a code length. A size of the information sequence Sis greater than or equal to K. The information sequence Sis optimized for the specific value of the code length (N). The method may further comprise transmitting the set of polar-encoded information bits. 1. A method of operation of a transmit node in a wireless communication system , the method comprising:performing polar encoding, of a set of K information bits to thereby generate a set of polar-encoded information bits wherein:{'sub': N', 'N, 'the K information bits are mapped to the first K bit locations in an information sequence S, the information sequence Sbeing a ranked sequence of N information bit locations among a plurality of input bits for the polar encoding where N is equivalent to a code length;'}{'sub': 'N', 'a size of the information sequence Sis greater than or equal to K; and'}{'sub': 'N', 'the Information sequence Sis optimized for the specific value of the code length (N).'}2. The method of claim 1 , further comprising claim 1 , transmitting the set of polar-encoded information bits.22. The method of claim 1 , wherein the transmit node is a radio access node in a wireless communication system.23. The method of claim 1 , wherein the transmit node is a wireless communication device In a wireless communication system.24. A transmit node comprising:a polar encoder operable to perform polar encoding of a set, of K information bits to thereby generate a set of polar-encoded information bits wherein:{'sub': N', 'N, 'the K ...

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09-09-2021 дата публикации

Method, device, transmitter, and receiver for detecting syncwords

Номер: US20210281388A1
Принадлежит: Harbin Hytera Technology Corp ltd

The present application provides a method, a device, a transmitter, and a receiver for detecting syncwords. After inserting syncwords in a data frame to be transmitted, a transmitter transmits the data frame to be transmitted inserted with a preset number of syncwords to a receiver. Because the bit-length of information in the data frame to be transmitted inserted with the preset number of syncwords is a specified multiple of the length of the syncwords, and the symbol components of the preset number of the inserted syncwords are different, or the symbol components are the same but the orders of the symbols are different, the receiver correlates each syncword of the preset number of syncwords with the data frame to be transmitted inserted with the preset number of syncwords after receiving the data frame to be transmitted, so as to ensure that at least one correlation peak can be detected, such that the position of at least one syncword can be confirmed, thereby determining frame alignment information of data and reducing frame loss rate.

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09-09-2021 дата публикации

CAMERA COMMUNICATION CHANNEL SELECTION

Номер: US20210281857A1
Принадлежит:

Adjusting communication channels used by camera to communicate with a base station are described. In one aspect, characteristics of communication channels can be determined and the operation of the camera can be adjusted to use a communication channel based on a comparison of the characteristics of multiple communication channels. 1. A method comprising:adjusting, by a processor, operation of a first camera to switch from a first communication channel to a second communication channel to provide first video data depicting activity occurring within a field of vision of the first camera, the adjusting based on characteristics of the first communication channel and characteristics of the second communication channel;determining that a second camera is providing second video data using the first communication channel while the first camera is providing the first video data using the second communication channel;adjusting operation of the second camera to use the second communication channel; andadjusting operation of the first camera to use the first communication channel responsive to determining that the second camera is providing the second video data.2. The method of claim 1 , wherein the comparison of the characteristics of the first communication channel and the characteristics of the second communication channel includes determining that the second communication channel has a higher bit rate than the first communication channel.3. The method of claim 1 , wherein the first communication channel has a first frequency band claim 1 , and the second communication channel has a second frequency band claim 1 , the first frequency band and the second frequency band including different frequencies.4. The method of claim 3 , wherein the second frequency includes higher frequencies than the first frequency band.5. The method of claim 1 , wherein adjusting the operation of the first camera includes adjusting an encoding of the first video data from a first encoding type to a ...

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