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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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Применить Всего найдено 84048. Отображено 100.
05-01-2012 дата публикации

Wireless base station apparatus, wireless communication system, wireless communication method, and program

Номер: US20120002632A1
Автор: Kenki Takagi
Принадлежит: NEC Corp

A wireless communication system comprises: first wireless base station apparatus that covers first cell; and second wireless base station apparatus that covers second cell that is wider than first cell and overlaps at least a portion of first cell, wherein: in a case of performing communication with mobile station terminal included in first cell, first wireless base station apparatus makes reference to communication quality of the second cell, judges whether or not wireless resource(s) of second wireless base station apparatus is to be reserved, and, when a judgment is made that reservation of wireless resource(s) is necessary, transmits wireless resource allocation request including necessary resource amount to second wireless base station apparatus; and in a case of receiving wireless resource allocation request from first wireless base station apparatus, second wireless base station apparatus allocates wireless resource(s) in accordance with necessary resource amount to first wireless base station apparatus.

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Номер записи: 1
16-10-2019 дата публикации

УСТРОЙСТВО ДЛЯ МОДЕЛИРОВАНИЯ СИСТЕМЫ РАДИОСВЯЗИ

Номер: RU0000193196U1
Автор: Гаврилин Евгений Александрович, Караев Дмитрий Александрович, Ковальков Денис Анатольевич, Крикунов Алексей Александрович, Ломов Павел Сергеевич, Потапов Сергей Евгеньевич, Солнцев Константин Павлович, Тоискин Василий Евгеньевич, Цимбал Владимир Анатольевич, Шиманов Сергей Николаевич
Принадлежит: ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ КАЗЕННОЕ ВОЕННОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ОБРАЗОВАНИЯ Военная академия Ракетных войск стратегического назначения имени Петра Великого МИНИСТЕРСТВА ОБОРОНЫ РОССИЙСКОЙ ФЕДЕРАЦИИ

Полезная модель относится к специализированным средствам вычислительной техники и предназначена для моделирования системы радиосвязи, функционирующей в режиме случайного множественного доступа типа S-ALOHA. Устройство для моделирования системы радиосвязи содержит: генератор заявок, четыре элемента И, элемент НЕ, генератор тактовых импульсов, два RS-триггера, при этом в него введены два элемента НЕ, элемент И, генератор импульсов случайной длительности и четыре суммирующих счетчика. Технический результат заключается в повышении точности определения характеристик информационного обмена в широковещательной радиосети случайного доступа благодаря учету воздействия помех на передаваемую информацию. Изменяя характеристики генератора заявок, генератора тактовых импульсов и генератора импульсов случайной длительности, можно моделировать систему радиосвязи с произвольными параметрами. Ц 193196 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ ВУ” 193 196” 44 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ПОЛЕЗНУЮ МОДЕЛЬ ММ9К Досрочное прекращение действия патента из-за неуплаты в установленный срок пошлины за поддержание патента в силе Дата прекращения действия патента: 22.06.2020 Дата внесения записи в Государственный реестр: 01.04.2021 Дата публикации и номер бюллетеня: 01.04.2021 Бюл. №10 Стр.: 1 па 956156 ЕП

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Номер записи: 2
21-10-2019 дата публикации

УСТРОЙСТВО ДЛЯ ВЗВЕШЕННОГО МУЛЬТИПЛЕКСИРОВАНИЯ СИГНАЛОВ В СИСТЕМЕ БЕСПРОВОДНОЙ СВЯЗИ ПЯТОГО ПОКОЛЕНИЯ

Номер: RU0000193265U1
Автор: Акилдиз Иан Фуат, Как Ахан, Красилов Артем Николаевич, Куреев Алексей Андреевич, Хоров Евгений Михайлович
Принадлежит: Федеральное государственное бюджетное учреждение науки Институт проблем передачи информации им. А.А. Харкевича Российской академии наук (ИППИ РАН)

В полезной модели описано устройство для мультиплексирования аналоговых и цифровых сигналов в системе беспроводной связи. Устройство для мультиплексирования содержит несколько входных интерфейсов, на каждый из которых подается цифровой сигнал и контрольная информация, необходимая для определения частотно-временных ресурсов и последующей передачи, программируемую логической интегральную схему (ПЛИС), память, центральный процессор, выходной интерфейс. В случае пересечения частотно-временных блоков сигналов, поступивших с разных входных интерфейсов, устройство для мультиплексирования может осуществить суперпозицию сигналов, предварительно произведя масштабирование по мощности согласно предварительно определенному весу сигнала. Также в случае, когда суперпозиция сигналов невозможна, устройство для мультиплексирования может произвести замену частотно-временных блоков одного сигнала частотно-временными блоками другого сигнала, имеющего приоритет выше. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 193 265 U1 (51) МПК H04W 72/04 (2009.01) H04W 16/14 (2009.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК H04W 72/0446 (2019.02); H04W 16/14 (2019.02); H04J 4/00 (2019.02) (21)(22) Заявка: 2018146257, 25.12.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: 21.10.2019 (45) Опубликовано: 21.10.2019 Бюл. № 30 1 9 3 2 6 5 R U (56) Список документов, цитированных в отчете о поиске: RU 2548037 C2, 10.04.2015. US 7424268 B2, 09.09.2008. WO 1999043112 A1, 26.08.1999. US 7394753 B2, 01.07.2008. US 8462817 B2, 11.06.2013. (54) УСТРОЙСТВО ДЛЯ ВЗВЕШЕННОГО МУЛЬТИПЛЕКСИРОВАНИЯ СИГНАЛОВ В СИСТЕМЕ БЕСПРОВОДНОЙ СВЯЗИ ПЯТОГО ПОКОЛЕНИЯ (57) Реферат: В полезной модели описано устройство для сигналов, поступивших с разных входных мультиплексирования аналоговых и цифровых интерфейсов, устройство для сигналов в системе беспроводной связи. мультиплексирования может осуществить Устройство для мультиплексирования содержит ...

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Номер записи: 3
16-03-2022 дата публикации

Устройство для моделирования процесса обмена информацией

Номер: RU0000209397U1
Автор: Букшин Николай Анатольевич, Путятина Тамара Дмитриевна
Принадлежит: Федеральное государственное бюджетное учреждение "4 Центральный научно-исследовательский институт" Министерства обороны Российской Федерации

Полезная модель относится к области автоматики и вычислительной техники - устройствам моделирования процесса обмена информацией и может быть использована в научных исследованиях, для проведения оценки вероятностно-временных характеристик процесса обмена информацией. Устройство предназначено для моделирования процесса обмена информацией между источником и получателем по каналам связи различной физической природы. Цель разработки полезной модели - создание технического средства, позволяющего повысить достоверность моделирования процесса обмена информацией между источником и получателем за счет наиболее полного учета параметров каналов связи, передаваемой информации и алгоритма обмена информацией. Поставленная цель достигается тем, что в процессе моделирования: учитываются такие элементы информационного сообщения, как адресная часть и контрольная сумма; учитывается допустимое количество битовых ошибок в элементах сообщения (не влияющих на качество доведения сообщения для используемого протокола); учитываются вероятности доведения элементов сообщения, зависящие от допустимого количества битовых ошибок. Технический результат предложенного технического решения заключается в том, что при создании полезной модели решена техническая проблема создания средства, позволяющего повысить достоверность моделирования процесса обмена информацией между источником и получателем за счет наиболее полного учета параметров каналов связи, передаваемой информации и алгоритма обмена информацией. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 209 397 U1 (51) МПК G06F 17/00 (2006.01) H04W 16/22 (2009.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G06F 17/00 (2021.08); H04W 16/22 (2021.08) (21)(22) Заявка: 2021123000, 29.07.2021 (24) Дата начала отсчета срока действия патента: 16.03.2022 Приоритет(ы): (22) Дата подачи заявки: 29.07.2021 (45) Опубликовано: 16.03.2022 Бюл. № 8 2 0 9 3 9 7 R U (56) Список документов, цитированных в отчете о поиске: ...

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Номер записи: 4
12-01-2012 дата публикации

Approach for Enabling Coexistence for Radio Technologies

Номер: US20120008704A1
Автор: Abhay Karandikar, Punit Rathod, Siddharth Shetty
Принадлежит: TTSL IITB Center for Excellence in Telecom (TICET)

Embodiments disclosed herein relate to wireless communications, and more particularly to reducing interference in wireless communications. The principal object of this invention is to co-ordinate between two or more communication radios, present within the same device or a plurality of devices present close to each other, without interfering with other non-interfering devices. Embodiments disclosed herein disclose a scheme for reducing interference between any licensed and/or unlicensed radio.

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Номер записи: 5
26-01-2012 дата публикации

Method and System for Time Synchronization of WiMAX and LTE-TDD Networks

Номер: US20120020256A1
Автор: Djordje Tujkovic, Louay Jalloul, Paulraj Arogyaswami
Принадлежит: Broadcom Corp

Embodiments of a method and system for supporting co-existence of first and second cellular networks in adjacent channels in the same geographical area are provided. The method and system synchronize the two cellular networks such that their respective uplink transmissions are aligned in time and their respective downlink transmissions are aligned in time. Such synchronization prevents (or substantially prevents) the uplink transmissions from one of the two cellular networks from overlapping with the downlink transmissions of the other cellular network, and vice versa, thereby mitigating interference between the two networks.

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Номер записи: 6
26-01-2012 дата публикации

Orthogonal resource reuse with sdma beams

Номер: US20120020316A1
Автор: Alexei Gorokhov, Min Dong, Tingfang JI
Принадлежит: Qualcomm Inc

A wireless communication system can implement beamforming across multiple omni-directional antennas to create beams at different spatial directions. The communication system can arrange the beams in sets, with each set arranged to provide substantially complete coverage over a predetermined coverage area. The communication system can arrange the multiple SDMA beam sets to support substantially complementary coverage areas, such that a main beam from a first set provides coverage to a weak coverage area of the second beam set. The wireless communication system assigns or otherwise allocates substantially orthogonal resources to each of the beam sets. The wireless communication system allocates resources to a communication link using a combination of beam sets and substantially orthogonal resources in order to provide improved coverage without a corresponding increase in interference.

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Номер записи: 7
26-01-2012 дата публикации

Apparatus and method for providing identification information of small base station in wireless communication system

Номер: US20120021742A1
Автор: Mi-hyun Lee
Принадлежит: SAMSUNG ELECTRONICS CO LTD

An apparatus and method select a segment for providing identification information of a small base station (BS) in a wireless communication system. A signal quality of each of a plurality of segments is determined. When at least one segment is not used by a macro BS, a segment of the worst signal quality is selected among the at least one segment that is not used by a macro BS. And the identification information is transmitted using the selected segment. The selected segment represents a resource for transmitting the identification information.

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Номер записи: 8
26-01-2012 дата публикации

Method and tooling for configuring a network of unattended ground wireless sensors

Номер: US20120022831A1
Автор: GianLuigi Ferrari, Jeremie Leguay, Mario Lopez-Ramos, Paolo Medagliani, Vincent Gay
Принадлежит: Thales SA

The method for configuring a network of deposited wireless sensors. In certain aspects, these methods include defining performance criteria forming constraints, with associated threshold values, and at least one performance criterion to be optimized, for at least one zone to be equipped with nodes, each performance criterion being defined by a model; defining for said or each zone; the allocation to said or each zone to be equipped, a number of nodes; applying an optimization process per zone on said or each zone; increasing the number of nodes or modifying the performance criteria defined in said or each zone where the performance criteria are not met and reproducing in these zones the optimization process per zone with the new number of nodes or the new performance criteria, and applying the configuration determined at each node in said or each zone.

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Номер записи: 9
02-02-2012 дата публикации

Method and apparatus for reporting channel state information of multi-channel in wireless local area network system

Номер: US20120026909A1
Автор: Yong Ho Seok
Принадлежит: LG ELECTRONICS INC

A method for reporting channel state information (CSI), performed by a beamformee, in a wireless local area network system using multi-channels is provided. The method includes receiving, from a beamformer, an NDP announcement (NDPA) frame announcing that a null data packet (NDP) frame follows the NDPA frame, receiving the NDP frame from the beamformer, estimating a channel from a training symbol of the NDP frame and transmitting to the beamformer a CSI report frame containing a result obtained by estimating the channel, wherein the channel is a multi-channel acquired by aggregating first and second channels which are non-contiguous to each other, and wherein the CSI report frame includes an average signal to noise ratio (SNR) for each space-time stream of the first channel and a steering matrix for each subcarrier of the first channel and an average SNR for each space-time stream of the second channel and a steering matrix for each subcarrier of the second channel.

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Номер записи: 10
09-02-2012 дата публикации

Downlink inter-cell interference coordination method and enb

Номер: US20120033570A1
Автор: Chunfeng Yao, Dengkun Xiao, Jian Huang, Yaojun Wang, Yuan He
Принадлежит: Huawei Technologies Co Ltd

Embodiments of the present invention disclose a downlink Inter-Cell Interference Coordination (ICIC) method and relate to the wireless communication field. The method includes: obtaining information about multiple carriers in a current cell; obtaining, according to the information about the multiple carriers, a downlink ICIC parameter corresponding to each carrier of the multiple carriers; and sending the downlink ICIC parameter corresponding to each carrier to a neighboring cell of the current cell so as to enable the neighboring cell to perform, according to the downlink ICIC parameter, downlink interference coordination with the first cell. The embodiments of the present invention are applicable to downlink ICIC in a multi-carrier system.

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Номер записи: 11
09-02-2012 дата публикации

Communication devices, method for data communication, and computer program product

Номер: US20120033621A1
Автор: Markus Dominik Mueck
Принадлежит: INFINEON TECHNOLOGIES AG

A communication device is described comprising a transceiver, a determining circuit configured to determine whether the communication device may use radio resources, which are allocated to be used by a wireless bidirectional communication system in the geographical region in which the communication device is located, for radio data communication without participation by the wireless bidirectional communication system, and a controller configured to control the transceiver to carry out radio data communication using the radio resources if the communication device may use the radio resources.

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Номер записи: 12
09-02-2012 дата публикации

Method and system for achieving enhanced quality and higher throughput for collocated IEEE 802.11B/G and bluetooth devices in coexistent operation

Номер: US20120034870A9
Автор: Brima Ibrahim, Prasanna Desai
Принадлежит: Broadcom Corp

A method and system for achieving enhanced quality and higher throughput for collocated IEEE 802.11b/g and Bluetooth (BT) devices in coexistent operation are provided. A priority signal may be generated by a BT radio in a coexistence station to disable WLAN transmissions in a WLAN radio when a BT HV3 frame is available for transmission. When the priority signal is asserted, an exponentially growing retransmission backoff mechanism in the WLAN radio may be disabled. Moreover, when the BT radio and the WLAN radio are enabled for coexistence operation, a WLAN fragmentation threshold in the WLAN radio may be modified based on a WLAN modulation rate and the BT HV3 frame duration.

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Номер записи: 13
09-02-2012 дата публикации

Telecommunication network

Номер: US20120034915A1
Автор: Antonio Arcidiacono, Daniele Vito Finocchiaro
Принадлежит: EUTELSAT SA

A network for establishing RF links between a main ground station connected to a NOC center and ground terminals via a multispot satellite, the network being composed of a coverage area composed of a plurality of cells in which terminals are located, each cell being associated with at least one link spot beam with the satellite to which a frequency band is allocated, the center including a determination module to determine the transmission parameters characteristic of the position of terminals in the coverage area, the parameters covering the entire coverage area and a transmitter to transmit all parameters to each of the terminals. Each of the terminals includes a storage device to store at least part of all the parameters, a positioning device to determine its geographic position in the coverage area and a processor to determine, from the parameters and its geographic position, the transmission parameters to be utilized.

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Номер записи: 14
01-03-2012 дата публикации

Decision directed antenna diversity in radio frequency receivers

Номер: US20120052827A1
Автор: Ahmed K. Sadek, Raamkumar Balamurthi
Принадлежит: Qualcomm Inc

A white space sensing method includes receiving a signal on each of multiple antennas in an alternating fashion. The method also includes calculating feature metrics for incumbent signals on a given frequency channel for all antennas (e.g., pilot strength, luminance carrier strength (for NTSC)). The strongest of the antennas can be selected, based on the calculated feature metrics, for white space sensing.

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Номер записи: 15
15-03-2012 дата публикации

Methods and apparatus for best-effort radio backhaul among cells on unlicensed or shared spectrum

Номер: US20120063383A1
Автор: Alan Barbieri, Naga Bhushan, Peter Gaal
Принадлежит: Qualcomm Inc

Methods and apparatus for wireless communication are described. A first base station may provide first backhaul information using a shared channel to a second base station. The shared channel may be white space channels, Authorized Shared Multiuser (ASM) channels or an Instrumentation, Scientific, and Measurement (ISM) channels. The first base station may further provide second backhaul information using a legacy backhaul channel.

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Номер записи: 16
15-03-2012 дата публикации

Network Coexistence through Active Superframe Interleaving

Номер: US20120063395A1
Автор: Jin-Meng Ho
Принадлежит: Texas Instruments Inc

Embodiments of the invention provide coexistence among independent networks through active superframe interleaving. Network hubs and devices exchange signals over a selected channel only during active superframes of their network. Network hubs broadcast coexistence information during their active superframes. A hub of network B desiring to use the selected channel first attempts to fit its active superframes within network A's inactive superframes, if available. If network A is not providing inactive superframes, then the network B hub determines whether network A is willing to coexist using active superframe interleaving on the channel. If so, the network B hub sends an interleave request message to the network A hub, which may accept the message and send back an interleave response message. The network A hub then offers new inactive superframes, and the network B hub adapts the transmissions and receptions of network B to fit within these inactive superframes.

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Номер записи: 17
15-03-2012 дата публикации

Method and apparatus for transmitting available radio access possibilities in a communications area

Номер: US20120064930A1
Автор: Jonas Kronander, Yngve SELÉN
Принадлежит: Telefonaktiebolaget LM Ericsson AB

A local radio access information transmitter for use in a communications area serviced by multiple different radio access technologies (RATs) allocated to different radio resources in different locations in the communications area. Each RAT is associated with one or more RAT radio transceivers for serving user equipments (UEs) at least in some portion of the communications area using one of the multiple RATs. The local radio access information transmitter is in addition to the RAT radio transceivers and located near an associated hotspot service area at least partly inside the communications area. The local radio access information transmitter determines local radio access information including one or more different RATs available for UE service in the hotspot service area and a frequency of frequencies of operation allocated to each RAT in the hotspot service area, sends a registration message to a wide area radio access information controller, and based on a response from the wide area radio access information controller, determines what radio resources to use to transmit the local radio access information signals. Radio transmission circuitry transmits the local radio access information signals for receipt by UEs in the hotspot service area using the determined radio resources.

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Номер записи: 18
22-03-2012 дата публикации

Methods of co-existence for wideband transmissions

Номер: US20120069746A1
Автор: Minyoung Park
Принадлежит: Intel Corp

Embodiments of systems and methods for providing wideband transmission co-existence are generally described herein. Other embodiments may be described and claimed.

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Номер записи: 19
22-03-2012 дата публикации

Method and system for the spectrum manager operation in cognitive radio systems

Номер: US20120071189A1
Автор: Apurva N. Mody
Принадлежит: BAE Systems Information and Electronic Systems Integration Inc

A system and method for the operation of a Spectrum Manager (SM) within a cognitive radio system includes two primary states of operation: SM at network initialization and SM at network operation. While in the network Initialization state, the SM's primary responsibility is to find an operating channel. After an operating channel is found, the SM moves from the network initialization state to the network operation state while executing a procedure to establish a network. While in the network operation state, the SM can execute other procedures, a procedure to update list of available channel from the incumbent database of channel and frequency data, a procedure to determine a signal type, a procedure to enter co-existence mode, deciding when to move to a backup channel and issuing calls for the same as well as background procedures such as looking for better backup channels when the SM is otherwise idle.

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Номер записи: 20
29-03-2012 дата публикации

Base station, communication system, mobile terminal, and relay device

Номер: US20120076070A1
Автор: Hiroaki Takano
Принадлежит: Sony Corp

A base station including an allocation unit for allocating the downlink of the relay link or the access link and the downlink of the direct link to a resource block included in a same resource block group, and allocating the uplink of the relay link or the access link and the uplink of the direct link to a resource block included in a same resource block group.

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Номер записи: 21
29-03-2012 дата публикации

Radio Resource Management In Mobile Communication Network Employing Private Base Stations

Номер: US20120077508A1
Автор: Matti Latva-Aho, Mohammad Enam Ur Rahman Khan
Принадлежит: NOKIA SIEMENS NETWORKS OY

There is provided a solution for reusing radio resources opportunistically by private base stations to increase the overall capacity of the network. The solution is based on applying an uplink broadcast in a mobile communication, in which information representing a radio resource allocated by a base station to a user terminal is broadcasted.

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Номер записи: 22
29-03-2012 дата публикации

Autonomous unlicensed band reuse in mixed cellular and device-to-device network

Номер: US20120077510A1
Автор: Qianxi Lu, Tao Chen
Принадлежит: Nokia Oyj

Methods, apparatuses, a system and computer program products are provided for autonomously reusing an unlicensed band in a hybrid cellular and device-to-device network. In accordance with an embodiment of the invention, an apparatus receives a request for resources from a terminal, and identifies available resources on an unlicensed band based on the request. The apparatus further reserves the identified available resources for use by the terminal, and transmits a reservation response to the terminal, wherein the reservation response comprises information relating to the reserved available resources. Further, the apparatus transmits data to the terminal over a licensed band and the available resources reserved on the unlicensed band.

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Номер записи: 23
05-04-2012 дата публикации

Apparatus and method for controlling a wireless feeder network

Номер: US20120082061A1
Автор: Andrew Logothetis, Martin Lysejko
Принадлежит: Airspan Networks Inc

An apparatus and method are provided for controlling a wireless feeder network which connects access base stations to a communications network. The wireless feeder network comprises a plurality of feeder base stations connected to the communications network and a plurality of feeder terminals connected to the plurality of access base stations. A sounding schedule is determined for the wireless feeder network in dependence on a visibility matrix, the visibility matrix indicative of visibility via the wireless feeder network between each of the plurality of feeder base stations and each of the plurality of feeder terminals. Then a sounding procedure within the wireless feeder network is controlled in accordance with the sounding schedule. The visibility matrix enables a coordinated sounding procedure to be carried out, allowing more accurate channel metrics for the wireless channels of the network to be determined which are not adversely affected by interference between elements of the network.

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Номер записи: 24
05-04-2012 дата публикации

Partitioning Resources on a Target Side of a Handover of a User Equipment Based on Data Traffic Indication

Номер: US20120083199A1
Автор: Martin Doettling, Raaf Bernhard, Simone Redana
Принадлежит: NOKIA SIEMENS NETWORKS OY

It is described a method for partitioning radio transmission resources within a telecommunication network. The method includes (a) preparing a handover of a user equipment from a source access point being assigned to a source side of the telecommunication network to a target access point being assigned to a target side of the telecommunication network, (b) transferring a pre-announcement message from the source side to the target side indicating the handover, wherein the pre-announcement message is indicative for the amount of data traffic being associated with the user equipment, and (c) partitioning the radio transmission resources on the target side based on the pre-announcement message. It is further described a source side network element and a target side network element for controlling a partitioning of radio transmission resources within a telecommunication network. Furthermore, a computer program for controlling the above described method is described.

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Номер записи: 25
12-04-2012 дата публикации

Apparatus and method for supporting coverage expansion of compact cell in heterogeneous network system

Номер: US20120087247A1
Автор: Chan-Ho Min, Jong-Hyung Kwun
Принадлежит: SAMSUNG ELECTRONICS CO LTD

An apparatus and method of operating a compact base station for supporting coverage area expansion of a compact cell in a heterogeneous network system are provided. The method includes determining whether an overload takes place in a coverage area where a compact base station and a plurality of terminals communicate using a first Frequency Assignment (FA) in a compact cell, determining whether resources are redistributable using a second FA in a coverage area expanded according to coverage area expansion of the compact cell, and when the resources are redistributable using the second FA in the coverage area expanded according to the coverage area expansion of the compact cell, changing the FA of at least one of the plurality of terminals communicating with the compact base station using the first FA in the compact cell, from the first FA to the second FA.

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Номер записи: 26
12-04-2012 дата публикации

Heterogeneous network (hetnet) user equipment (ue) radio resource management (rrm) measurements

Номер: US20120088516A1
Автор: Aleksandar Damnjanovic, Durga Prasad Malladi, Osok Song, Peter Gaal, Tao Luo, Tingfang JI
Принадлежит: Qualcomm Inc

Methods and apparatus for performing radio resource management (RRM) measurements in a heterogeneous network (HetNet) are provided in an effort to prevent failure of RRM measurement procedures in a dominant interference scenario. Several alternatives are provided for determining particular resources (e.g., subframes) to use for performing the RRM measurements, wherein the particular resources are based on cooperative resource partitioning between cells of the HetNet, wherein the cells may be of different types (e.g., macro, pico, or femto cells). These alternatives include, for example: (1) intra-frequency or intra-RAT (radio access technology) alternatives, which may involve transmitting resource partitioning information (RPI) in or deriving non-serving cell RPI based on the serving cell's RPI, as well as (2) inter-frequency or inter-RAT alternatives, where the RRM measurements may be performed during a measurement gap.

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Номер записи: 27
19-04-2012 дата публикации

Modelling apparatus and method

Номер: US20120093029A1
Автор: Gerard Terence Foster
Принадлежит: AIRCOM INTERNATIONAL LTD

A method of processing a model of a telecommunications system including a plurality of access nodes through which communications terminals can communicate data is described. The method includes dividing the communications terminals, the access nodes and the core network into different groups, for a first of the groups loading the computer program code representing the communications terminals, the access nodes or the core network of the first group into the computer memory and performing the representing with the processor within a first time period, determining an amount of the data communicated between the first group and one or more of the other groups during the first time period, and for a subsequent time period representing the first group by an amount of data corresponding to the amount of the data communicated between the first group and a second of the groups, whilst loading the computer program code into the computer memory and performing the representing of the second group within the subsequent time period. The results produced by the modeling can be used to configure the telecommunications system itself.

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Номер записи: 28
19-04-2012 дата публикации

Mobile communication system, communication control apparatus, communication control method and wireless base station

Номер: US20120094653A1
Автор: Masato Okuda
Принадлежит: Fujitsu Ltd

A mobile communication system including: a first wireless base station; a second wireless base station located within a service area of the first wireless base station and configured to have a service area smaller than the service area of the first wireless base station; a wireless terminal configured to couple to the first or second wireless base stations; and a communication control apparatus; wherein the communication control apparatus controls adjustment of communication parameters of the first wireless base station, instructs the second wireless base station whose communication parameters have been changed to measure a wireless quality of the first wireless base station when changes to the communication parameters of the first wireless base station have occurred, obtains the wireless quality measured by the second wireless base station, and determines whether the communication parameters of the first wireless base station were adjusted based on the wireless quality.

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Номер записи: 29
19-04-2012 дата публикации

Adaptive capacity and quality improvements in cellular radio services by the removal of strong interference sources

Номер: US20120094655A1
Автор: Dan Shklarsky
Принадлежит: Individual

A method for increasing capacity or capacity of a cellular radiotelephone system, in which one cell is a member of more than one reuse group ( 42, 45 ). The potential interference risk due to each calling subscriber is assessed ( 43, 46 ). The subscriber is assigned to an appropriate reuse group in which he will not be an interferer ( 44, 47, 48, 49, 50 ). The method may alternatively be used for the improvement of quality of service ( 44, 48, 50 ), i.e., providing reduced probability of interference.

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Номер записи: 30
26-04-2012 дата публикации

Method and system for obtaining a deployment scheme of wireless local area network access points

Номер: US20120099481A1
Автор: Guanbo Hou, Mingjie Dong, Shen Hu, Shoubao Yang, Wei Zhang, YUAN Zhou, Yun Hu
Принадлежит: Huawei Technologies Co Ltd

A method for obtaining a deployment scheme of Wireless Local Area Network (WLAN) Access Points (APs) is provided. The method includes obtaining coverage information of each AP according to a WLAN competition model and deployment information; and combining a constraint relationship between the coverage information of each AP and cost information of each AP, and obtaining the deployment scheme of the APs through calculation. A device and a system are further provided, so as to automatically obtain a deployment scheme of APs, and control the cost.

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Номер записи: 31
26-04-2012 дата публикации

Method of managing x2 interface, handover method, interference coordination method and apparatus

Номер: US20120100860A1
Автор: Yixue Lei, Yongsheng Zhang
Принадлежит: NTT DOCOMO INC

Disclosed is a method of managing an X2 interface, a handover method, an interference coordination method and an apparatus for LTE and LTE-Advanced system. X2 interface management includes: finding by a first eNB, a new neighboring cell, i.e., a second cell corresponding to a second HeNB; determining by the first eNB, an access mode of the second cell; and establishing a first X2 interface between the first eNB and the second HeNB when the access mode of the second cell is an open mode or a hybrid mode. The X2 interface may be managed dynamically and the mode for establishing the X2 interface, such as direct X2 interface or gateway-proxied X2 interface, may be selected. The expansible problem and system overhead due to the X2 interface in the LTE and LTE-Advanced system may be reduced effectively to better support handover and interference coordination.

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Номер записи: 32
03-05-2012 дата публикации

Method and apparatus for radio coexistence

Номер: US20120106461A1
Автор: Jari Junell, Juha Salokannel, Mika Kasslin, Päivi M. RUUSKA
Принадлежит: Nokia Oyj

In a non-limiting and exemplary embodiment, a method is provided for radio coexistence, comprising: sending, by a first radio coexistence enabler associated with a first device operating in a network mastered by a second device comprising a second radio coexistence enabler of a master type, a request to a radio coexistence manager, the request indicating that the first radio coexistence enabler is of a client type, receiving information on at least one of locally available radio resources, candidate devices for device-to-device connections, and further one or more nearby access networks from the radio coexistence manager, and causing establishment of a connection by the first device to a third device on the basis of the received information without control of the second device.

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Номер записи: 33
03-05-2012 дата публикации

Method and apparatus for transmitting neighbor base station information performed by macro base station in wireless communication system

Номер: US20120106516A1
Автор: Chul Sik Yoon, Eunkyung Kim, Hyun Lee, Jae Sun CHA, Juhee Kim, Kwang Jae Lim, Namgi KIM, Soojung Jung, Sung Kyung Kim, Won-Ik Kim
Принадлежит: Electronics and Telecommunications Research Institute ETRI

Provided is a method for requesting neighbor base station information by user equipment in a wireless communication system. The method includes: searching neighbor base stations targeted for a handover; transmitting a list request message including preamble information about a neighbor base station searched by the user equipment among the neighbor base stations and a neighbor base station list request indicator indicating a request for information about the neighbor base station to a serving base station; and receiving a list response message including an identification information and system information of the neighbor base station from the serving base station.

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Номер записи: 34
03-05-2012 дата публикации

Energy Reduction in Cooperating Radio Access Systems

Номер: US20120108245A1
Автор: Adrian Victor Pais, Haibin Zhang, Job Cornelis Oostveen, Ljupco Jorguseski, Remco Litjens
Принадлежит: Koninklijke KPN NV, Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO

The invention relates to cooperation between first and second wireless access networks that can be used to obtain energy reduction for or traffic routing within the overall telecommunications infrastructure while still enabling acceptable network coverage and satisfactory performance by the telecommunications infrastructure as a whole. The cooperation refers to the fact that the wireless access networks provide duplicate coverage in a particular area when both wireless access networks are active, and that traffic can be switched between the cooperating networks in order to temporarily adjust (e.g. switch off) resources of one or the wireless access networks. In this manner, energy reduction and/or traffic routing can be obtained under the constraint that sufficient service coverage and capacity remains at an acceptable quality.

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Номер записи: 35
03-05-2012 дата публикации

Communication Network and Method

Номер: US20120108283A1
Автор: Klaus Ingemann Pedersen, Luis Garcia
Принадлежит: NOKIA SIEMENS NETWORKS OY

In a communication network including a plurality of base stations, a method including the steps of: sending a signal from said base station indicating that it will enter a period of inactivity, to at least one other base station; storing at that least one current parameter(s) relating to interference between base stations and/or updating said parameter(s) for forward use. The parameter(s) may relate to interference between first base station and at least one operationally neighbouring base station and may be Background Interference Matrix (BIM) data.

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Номер записи: 36
10-05-2012 дата публикации

Base station, communication system, mobile terminal, and relay device

Номер: US20120113888A1
Автор: Hiroaki Takano
Принадлежит: Sony Corp

A base station is provided with a communication unit for communicating with a mobile terminal via a relay link between the base station and a relay device and an access link between the relay device and the mobile terminal, and a selection unit for selecting an allocation pattern of an uplink of the relay link, a downlink of the relay link, an uplink of the access link, and a downlink of the access link to frequency-time blocks from a plurality of allocation patterns that are different in delay occurring between the base station and the mobile terminal.

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Номер записи: 37
10-05-2012 дата публикации

System and method for managing resource in communication system

Номер: US20120115525A1
Автор: Dong-Hun Lee, Hyunduk KANG
Принадлежит: Electronics and Telecommunications Research Institute ETRI

Provided is a resource management system in a communication system including a plurality of systems having no right to use a first frequency band. The resource management system includes: a coexistence manager (CM) configured to manage the plurality of systems for the purpose of coexistence and frequency sharing of the plurality of systems in a frequency band available for the plurality of systems, when the available frequency band is detected in the first frequency band; a coexistence enabler (CE) configured to transmit and receive information of the plurality of systems and information of the CM; and a coexistence discovery and information server (CDIS) configured to support the CM to control the plurality of systems. The CM performs channel classification for the first frequency band based on channel information of the available frequency band, and allocates operating channels to the plurality of systems.

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Номер записи: 38
17-05-2012 дата публикации

System and method for measuring channel state information in a communications system

Номер: US20120120910A1
Автор: David Jean-Marie Mazzarese, YANG Tang
Принадлежит: FutureWei Technologies Inc

A method for operating a communications controller includes partitioning a full band signal selected from a set of orthogonal full band signals into a plurality of subband signals according to special signal frequency resource information of a special signal being transmitted by the communications controller in a manner that reduces or avoids a collision between the full band signal and the special signal, where the plurality of subband signals carries information for estimating a channel between the communications controller and a communications device. The method also includes assigning a subband associated with each subband signal in the plurality of subband signals to a respective subband time resource according to special signal time resource information of the special signal in a manner that reduces or avoids a collision between the subband and the special signal, where the assigned subband is part of a plurality of subbands.

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Номер записи: 39
17-05-2012 дата публикации

Adaptive Beamforming Configuration Methods And Apparatus For Wireless Access Points Serving As Handoff Indication Mechanisms In Wireless Local Area Networks

Номер: US20120120918A1
Автор: Vytautas Robertas Kezys
Принадлежит: Research in Motion Ltd

A mobile communication device includes a processor and a communication subsystem coupled to the processor. The communication subsystem is configured to provide the mobile device with wireless communications via an access point of a wireless network. The mobile device communicates with the access point via the communication subsystem for adjusting boundaries of an RF coverage region of the access point. The mobile device subsequently communicates with the access point via the communication subsystem in the adjusted RF coverage region for handoff to another wireless network, while the access point serves as part of a handoff indication mechanism in the wireless network.

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Номер записи: 40
17-05-2012 дата публикации

Apparatus and method for allocating resources to nodes in a communication system using an update of iteration resource weights

Номер: US20120122505A1
Автор: Andreas Dotzler, Guido Dietl, Maximilian Riemensberger, Wolfgang Utschick
Принадлежит: NTT DOCOMO INC

An apparatus for allocating resources to nodes in a communication system comprises an iteration controller ( 10 ) for performing an iterative processing, the iteration controller being configured for using ( 11 ) iteration resource weights to obtain a resources allocation result for an iteration step, and for updating ( 12 ) the iteration resource weights to obtain updated iteration resource weights for a further iteration step using a weighted combination of the resources allocation results for the iteration step and for at least one earlier iteration step.

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Номер записи: 41
24-05-2012 дата публикации

Systems and methods for polling for dynamic slot reservation

Номер: US20120127972A1
Автор: Assaf Kasher, Solomon Trainin
Принадлежит: Individual

Embodiments include systems and methods for allocating time to a plurality of devices in the network of a piconet controller. Embodiments comprise selectively directing a steerable antenna beam of the piconet controller to a plurality of devices in succession during a polling process to receive time allocation requests from one or more of the devices. Subsequent to the polling process, a grant procedure is performed wherein a device is granted permission to transmit in a subsequent time interval. Also during the grant process, one or more devices are instructed to receive from the device granted permission to transmit. The polling process and the grant process occur in the same superframe.

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Номер записи: 42
24-05-2012 дата публикации

Multi-radio coexistence

Номер: US20120129457A1
Автор: Joel Benjamin Linsky
Принадлежит: Qualcomm Inc

A method of wireless communication includes monitoring coexistence issues among supported radios in a User Equipment (UE). The method includes configuring a UE with first and second filter configurations. The first filter configuration covers a first frequency band, for example a portion of the ISM band. The first filter configuration may be wider than the second filter configuration, which excludes a portion of the first frequency band that is adjacent to a proximate second frequency band, for example LTE Band 7 or LTE Band 40. The UE selects between the first and second filter configurations based on the frequency of a first UE event. If the UE event is in a frequency in the adjacent portion excluded by the second filter configuration, the UE arbitrates depending on event priority. The second filter configuration may be chosen to reduce or minimize arbitration.

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Номер записи: 43
31-05-2012 дата публикации

Method and system enabling use of white space radio spectrum using an out of band control channel

Номер: US20120135767A1
Автор: Rajendra Singh
Принадлежит: TELCOM VENTURES LLC

A system ( 10 ) and method ( 50 ) of dynamic allocation of spectrum for a communication device involves receiving ( 51 ) a user channel map (UCM) on a control channel that is outside the band of interest. The UCM can include at least boundary location information for one or more channel resources. The method can determine ( 52 ) at least an approximate location for the communication device, compare ( 56 ) the approximate location with the boundary location information, and determine ( 57 ) which channels can avoid co-channel and adjacent channel interference with licensed users and other unlicensed users based on the comparison. The method can relax communication parameters for the one or more channel resources if no licensed user signals are found in the user channel map, and tightening the communication parameters if co-channel, adjacent channel, or other interference generating channel use is found within the user channel map.

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Номер записи: 44
07-06-2012 дата публикации

Spectrum sensor for cognitive wireless communication and method for cognitive wireless communication

Номер: US20120140793A1
Автор: Chen Sun, Ha Nguyen Tran, Hiroshi Harada, Yohannes Alemseged Demessie
Принадлежит: National Institute of Information and Communications Technology

Provided is a spectrum sensor for cognitive wireless communication whereby it is possible to improve communication efficiency. In a cognitive wireless communication system, a spectrum sensor senses spectra in multiple frequency bands. A spectrum sensor is configured to be able to operate in one operation mode selected from among a spectrum sensing mode for sensing spectra, and a communication mode for communicating with a wireless communication device. Further, the spectrum sensor is provided with a controller for controlling the operation mode. The controller switches between the above-mentioned operation modes during the symbol period of an ultra-wideband physical layer (UWB PHY).

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Номер записи: 45
14-06-2012 дата публикации

Method and Apparatus for Power Reduction Control in Home Network Environment

Номер: US20120149363A1
Автор: Michael Faerber, Ottmar Aumann
Принадлежит: NOKIA SIEMENS NETWORKS OY

There are provided measures for power reduction control in a home network environment, which may be applicable in an interworking of a home network area and a macro network area. Such measures for power reduction control may for example include, upon receipt of an initial power reduction command from a network element of a macro network area, reducing a transmit power in a home network area by a predetermined power reduction amount and starting a timer with a predetermined time period, and upon receipt of a further power reduction command from a network element of a macro network area as long as the timer is not expired, discarding the further power reduction command.

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Номер записи: 46
14-06-2012 дата публикации

Tiered wireless, multi-modal access sytem and method

Номер: US20120149364A1
Автор: Charles M. Leedom, Jr.
Принадлежит: MLR LLC

A wireless, multi-modal access device and system adapted to integrate a number of communications networks operating in differing communication modes. to facilitate transfer of communication links during a communication session to promote efficient use of the communication networks. The system includes a plurality of Universal Multi-Modal Access. Devices UMMAD that are capable of operating at different frequencies and different protocols (TDMA, AMPS, .CDMA, GSM, PCS etc.) to communicate with any one of a number. of Wide Bandwidth Gateways (WBG), which are each capable of communication using one or more of the protocols. The communication links may be switched from one WBG to another or from one protocol to another during a communication session to continue the session under the control of a Universal System Traffic Controller. Numerous other applications of the UMMADs for unique identification and e-commerce are disclosed.

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Номер записи: 47
14-06-2012 дата публикации

Network elements, integrated circuits and methods for routing control

Номер: US20120151030A1
Автор: ERIK Guttman, Haris Zisimopoulos
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A method for identifying whether a selective internet protocol transport opportunity (SIPTO) route is allowed to be used by at least one wireless communication unit comprises, at a core network element: storing subscription profile data associated with the at least one wireless communication unit in a home subscriber server (HSS) database, where the subscription profile data comprises an indication of whether the wireless communication unit has access rights to use a SIPTO route, and generating a SIPTO indicator for informing at least one network element that the at least one wireless communication unit is allowed to use the SIPTO route.

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Номер записи: 48
21-06-2012 дата публикации

Apparatus for interference cancelling in wireless communication system and method using the same

Номер: US20120157084A1
Автор: Uk Jang
Принадлежит: Electronics and Telecommunications Research Institute ETRI

An interference cancellation method include detecting macro terminals which experience interference between a first signal output from a macro base-station and a second signal delivered from a femto terminal that is greater than a reference value; determining the number of channels of the femto base-station by subtracting the number of the detected macro terminals from the number of antennas of the femto base-station; generating a transmission beamforming weight vector using channel information of a signal interfered by the first signal and the second signal and channel information of the first signal; and providing a service, using the transmission beamforming weight vector, to as many femto terminals as the number obtained by subtracting the number of the detected macro terminals, which experience the interference greater than the reference value, from the number of the antennas of the femto base-station.

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Номер записи: 49
21-06-2012 дата публикации

Optimization of cellular network architecture based on device type-specific traffic dynamics

Номер: US20120157106A1
Автор: Jia Wang, Lusheng Ji, Muhammad Zubair Shafig, Xiang-Yang Alexander Liu
Принадлежит: AT&T INTELLECTUAL PROPERTY I LP

A method, a computer readable medium and an apparatus for optimizing a cellular network architecture are disclosed. For example, the method obtains network traffic data for a plurality of different endpoint device types, wherein the network traffic data comprises network traffic data for each of the plurality of different endpoint device types, and predicts a future traffic pattern for one of the plurality of different endpoint device types based on the network traffic data. The method then adjusts a parameter of the cellular network architecture in response to the future traffic pattern predicted for the one of the plurality of different endpoint device types.

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Номер записи: 50
21-06-2012 дата публикации

Radio communication system, radio terminal, radio base station, controller device and radio communication method

Номер: US20120157138A1
Автор: Mitsuharu Senda
Принадлежит: Kyocera Corp

A controller device receives power information and location information from a first radio base station, the power information indicating, for each frequency, the power of the signal arriving at a radio terminal in the communication area of the first radio base station from a second radio base station, and the location information indicating the location of the radio terminal. The controller device is provided with an identifying unit which, based on the power information and location information received from the first radio base station, identifies an interference location and identifies an interference frequency, the interference location being the location where the power of the signal arriving at the communication area is greater than or equal to a predetermined value, and the interference frequency being the frequency of the signal arriving at the interference location.

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Номер записи: 51
28-06-2012 дата публикации

Dynamic packet scheduling method, apparatus and computer program

Номер: US20120163251A1
Автор: Inbar Anson Bratspiess, Lior Uziel
Принадлежит: Sequans Communications SA

A dynamic packet scheduling method in a cellular OFDMA-TDD network. The method includes the following steps: obtaining at least one PHY based index defining a preferred allocation of a mobile station among at least two frequency reuse zones in a cell of said communication network; and scheduling bursts of packets to transmit to the mobile station, by at least one frequency reuse zone among the at least two frequency reuse zones, in view of transmission requests and the at least one PHY based index.

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Номер записи: 52
28-06-2012 дата публикации

Method of controlling inteference from femto cells in consideration of macrocell

Номер: US20120165032A1
Автор: Pyeong Jung Song, Soon Gi PARK, Yeon Seung Shin, Yeong Jin KIM, Young Jick Bahg
Принадлежит: Electronics and Telecommunications Research Institute ETRI

A method of controlling femtocell interference considering a macrocell is provided. The method of controlling the interference includes a method of setting transmission power of the femtocell and methods of avoiding the interference of the femtocell. The methods of avoiding the interference include a PRB rotation method, a PRB transmission power restriction method, a hybrid method and a UB rotation method. The method of setting the transmission power and the methods of avoiding the interference may be implemented independently or implemented in combination with each other. Hence, according to the present invention, the femtocell itself can control the interference without affecting an interface of an existing macrocell base station and without signaling through the interface with the macrocell.

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Номер записи: 53
28-06-2012 дата публикации

Integrated circuit for controlling sequence assigning method and reference signal generating method

Номер: US20120165054A1
Автор: Daichi Imamura, Sadaki Futagi, Tomofumi Takata, Yoshihiko Ogawa
Принадлежит: Panasonic Corp

Provided is a sequence allocation method capable of reducing inter-cell interference of a reference signal when a ZC sequence is used as the reference signal in a mobile communication system. In the sequence allocation method divides R×M sequences specified by a ZC sequence number r (r=1 to R) and a cyclic shift sequence number m (m=1 to M) into a plurality of sequence groups X (X=1 to R) in accordance with the transmission band width of the reference signal, so that the ZC sequence is allocated to each cell in each sequence group unit. When it is assumed that R=9 and M=6, the number of sequence is 54. Each of the sequence groups is formed by two sequences. Accordingly, the number of sequence groups is 27. The 27 types of sequence groups are allocated to each cell.

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Номер записи: 54
28-06-2012 дата публикации

Method and apparatus for acquiring available channel information in a wireless local area network system

Номер: US20120165056A1
Автор: Eun Sun Kim, Yong Ho Seok
Принадлежит: LG ELECTRONICS INC

Methods and apparatuses for acquiring/providing available channel information using Generic Advertisement Service (GAS) protocol in a wireless local area network (WLAN) are disclosed. AP (Access Point) station has a capability to acquire information for available channels from a database using a specific protocol related to an operation within the White Space (e.g. Access Network Query Protocol (ANQP)). And, non-AP station can retrieve the information for available channels by transmitting a Generic Advertisement Service (GAS) initial request frame to the AP station, wherein the GAS initial request frame comprises an Advertisement Protocol Element whose element ID indicates the specific protocol, and receiving a GAS initial response frame comprising a White Space Map (WSM) the specific protocol. The WSM comprises one or more white space channel units, and each of the white space channel units comprises a channel number field indicating one of the available channels and a power constraint field indicating a maximum allowable power on the indicated channel.

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Номер записи: 55
05-07-2012 дата публикации

Coordinated linear beamforming in downlink multi-cell wireless networks

Номер: US20120170677A1
Автор: Luca Venturino, Narayan Prasad, Xiaodong Wang
Принадлежит: NEC Laboratories America Inc

System and methods are disclosed for optimizing wireless communication for a plurality of mobile wireless devices. The system uses beamforming vectors or precoders having a structure optimal with respect to the weighted sum rate in a multi-cell orthogonal frequency division multiple access (OFDMA) downlink. A plurality of base stations communicate with the mobile devices and all base stations perform a distributed non-convex optimization exploiting the determined structure.

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Номер записи: 56
05-07-2012 дата публикации

Antenna array for supporting multiple beam architectures

Номер: US20120172096A1
Автор: Cuong Tran, Dragan M. SAMARDZIJA, Howard C. Huang, Reinaldo A. Valenzuela, Susan J. Walker
Принадлежит: Alcatel Lucent SAS

The present invention relates to an antenna array for supporting multiple beam architectures. For example, a transceiver may include an antenna array. The antenna array includes a plurality of antenna elements, where the plurality of antenna elements is configured to support at least two beam architectures in a cell site. Each beam architecture is associated with a different configuration of sectors and beamforming signals. According to one embodiment, each beam architecture is associated with a different wireless standard. According to another embodiment, each beam architecture is associated with a different carrier within one wireless standard. The antenna elements may be arranged as a circular array.

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Номер записи: 57
12-07-2012 дата публикации

Method, apparatus and system for establishing path for transmitting wireless signal

Номер: US20120176916A1
Автор: Jun Zhou, Weilong Ouyang
Принадлежит: Huawei Technologies Co Ltd

A method, an apparatus, and a system for establishing a path for transmitting a wireless signal are disclosed. The path involves a wired medium that connects an access device and a distributed node, and the method includes: the access device obtains communication performance parameters of the distributed node; the access device determines frequency used to transmit a wireless signal through the wired medium according to the communication performance parameters and a workable spectrum of the access device; and the access device adjusts parameters of the access device according to the determined frequency, and sends a message that carries the frequency to the distributed node so that the distributed node adjusts parameters of the distributed node according to the frequency to establish a path for transmitting a wireless signal in the wired medium.

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Номер записи: 58
12-07-2012 дата публикации

NETWORK SETUP IN WIDE CHANNEL WIRELESS LOCAL AREA NETWORKS (WLANs)

Номер: US20120176974A1
Автор: Hemanth Sampath, Santosh Paul Abraham, Simone Merlin
Принадлежит: Qualcomm Inc

Methods and apparatus for network setup in wide channel WLANs are provided. Techniques for co-existence of 20 MHz and 40 MHz networks (e.g., as defined by IEEE 802.11n) may be extended to 80 MHz and 160 MHz networks. For example, a primary channel of an existing network may be designated as the primary channel of a new network. Further, a primary channel of the existing network may not be used as a secondary channel in the new network. Intolerance operation between networks may include a first network releasing one or more channels in response to an intolerance indication received from a second network. Furthermore, in response to the intolerance indication from the second network, the first network may utilize one or more channels for communicating in the first network using a first set of access parameters. The access parameters may depend on the intolerance indication.

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Номер записи: 59
19-07-2012 дата публикации

Cognitive multi-user ofdma

Номер: US20120182875A1
Автор: Amer A. Hassan, Christian Huitema
Принадлежит: Microsoft Corp

A computing device operating according to a frequency division multiplexed protocol in which communication occurs over a signal formed from a plurality of sub-channels selected from anywhere in a frequency spectrum. A computing device may select sub-channels cognitively by using information about sub-channels previously deemed suitable or unsuitable by that computing device or other computing devices. A described technique for determining sub-channel suitability includes analyzing radio frequency energy in the sub-channel to detect signals generated by another computing device or high noise levels. Information may also be used to cognitively select sub-channels to be analyzed, such as by first selecting for analysis previously-used sub-channels.

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Номер записи: 60
26-07-2012 дата публикации

Mobile communication system, base station apparatus, mobile station apparatus, control method, and computer readable medium

Номер: US20120190358A1
Автор: Hiroaki Aminaka, Kojiro Hamabe
Принадлежит: NEC Corp

A first transmission controller ( 13 ) causes a second base station ( 7 ) to transmit first configuration information (CFG 1 ) regarding a first cell ( 11 ) using a radio channel capable of being received by at least one first base station ( 1 ). A second transmission controller ( 14 ) selects a base station from among the at least one first base station ( 1 ), and transmits second configuration information (CFG 2 ) regarding the first cell ( 11 ) to the selected base station from a higher-level network ( 15 ) via an access line ( 16 ).

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Номер записи: 61
26-07-2012 дата публикации

Radio base station and antenna weight setting method

Номер: US20120190396A1
Автор: Teppei Oyama
Принадлежит: Fujitsu Ltd

A radio base station which includes an antenna and adjusts directivity of a radio wave to be transmitted and received by antenna weight of the antenna, the radio base station includes a receiver which receives a first reference signal from a first mobile terminal and a second reference signal from a second mobile terminal and a processer which produces antenna weight which is based on the first and the second reference signals, to the antenna for sending a common data to the first and the second mobile terminals.

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Номер записи: 62
09-08-2012 дата публикации

Access control system, access control method, relay station apparatus, terminal station apparatus, transmitting side processing method, receiving side processing system, and receiving side processing method

Номер: US20120201193A1
Автор: Daisuke Umehara, Masaaki Tanaka, Takatoshi Sugiyama
Принадлежит: Nippon Telegraph and Telephone Corp

Provided is a wireless relay system that improves system throughput between terminal stations and flexibly makes system throughput variable with respect to short-term traffic fluctuations. In the wireless relay system, a plurality of relay stations relay communication between two terminal stations that perform random access. The terminal stations and the relay stations include a slot synchronization unit, a time synchronization unit, and a transmission unit. The slot synchronization unit synchronizes slot timing of a time slot indicating a unit time. The time synchronization unit performs time synchronization for synchronization of the slot timing. The transmission unit transmits a transmission packet to a wireless line in synchronization with the slot timing. A transmission right is allocated for at least one time slot to each of a plurality of groups which are configured so that a group of a terminal station or a relay station and a group of an adjacent terminal station or an adjacent relay station are different from each other. The transmission unit transmits the transmission packet to the wireless line only in a time slot in which the transmission right is allocated to the group to which the terminal station or the relay station belongs.

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Номер записи: 63
09-08-2012 дата публикации

System and method of dual network with a shared base

Номер: US20120202484A1
Автор: Eli Fogel, Jochen Kilian, Otmar Rengert, Steven Dickinson
Принадлежит: DSP Group Israel Ltd

An apparatus for enabling operation of a LDC network within a DECT system having a modified protocol, comprising an A-field with an identity of a FP shared by both the DECT system and the LDC network, B-fields with unique sync patterns for the DECT system and the LDC network, respectively; and separate dummy bearers for transmission by the FP for the DECT system and the LDC network, respectively, and a method for using the same.

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Номер записи: 64
09-08-2012 дата публикации

Method for Load Balancing in a Radio Communications System and Apparatus Thereof

Номер: US20120202504A1
Автор: Bernhard Wegmann, Viering Ingo
Принадлежит: NOKIA SIEMENS NETWORKS OY

Method and apparatus thereof for load balancing in a radio communications system having a plurality of access nodes, including the steps of: two access nodes of said plurality exchange cell load information; a first access node having spare capacity and accepting load balancing requests from said second access node modifies a transmit power ratio between a data channel and a control channel such that load balancing is accomplished by handing over at least one user terminal or UE to the access node or cell re-selection of at least one user terminal or UE to the access node.

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Номер записи: 65
09-08-2012 дата публикации

Method and system enabling use of white space radio spectrum using digital broadcast signals

Номер: US20120202510A1
Автор: Rajendra Singh
Принадлежит: TELCOM VENTURES LLC

A system ( 10 ) and method ( 50 or 70 ) of dynamic allocation of spectrum for a communication device where a UHF band is currently unused for licensed television broadcasting involves determining ( 51 ) a location of a user device, determining ( 52 ) which UHF television broadcast channels are available for use by the user device and determining ( 53 ) a maximum allowed transmission power for a given channel based on signal strength for the given channel and on adjacent channels before transmitting ( 54 ) the maximum allowed transmission power and location by the user device to a remote server. The method can receive ( 55 ) polygon endpoints from a television broadcast defining the location of usable reception of the television broadcast.

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Номер записи: 66
16-08-2012 дата публикации

Methods and apparatus for wireless coexistence based on transceiver chain emphasis

Номер: US20120207032A1
Автор: Arthur Lin, Camille Chen, Chris Hartman, Chris Zimmermann, Jaime Tolentino, Lei Li, Michael J. Giles
Принадлежит: Apple Inc

Methods and apparatus for reduction of interference between a plurality of wireless interfaces. In one exemplary embodiment, a device having a first (e.g., Wi-Fi) interface and a second (e.g., Bluetooth) interface monitors interference between its interfaces. A reduction in transmit power of the Wi-Fi module causes a disproportionately larger reduction in undesirable interference experienced at the Bluetooth antennas. For example, when the Bluetooth interface detects interference levels above acceptable thresholds, the Wi-Fi interface adjusts operation of one or more of its transmit chains based on various conditions such as duty cycle, Received Signal Strength Indication (RSSI), etc. Various embodiments of the present invention provide simultaneous operation of WLAN and PAN interfaces, without requiring time division coexistence, by reducing power on a subset of interfering antennas.

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Номер записи: 67
16-08-2012 дата публикации

Frequency allocation method and device for a frequency sharing system in an environment where a primary licensing system is present

Номер: US20120208582A1
Автор: Heon Jin Hong, Hyunduk KANG
Принадлежит: Electronics and Telecommunications Research Institute ETRI

Provided is a method and apparatus for assigning a frequency in an environment where an incumbent system exists. In a frequency environment where the incumbent system exists, a frequency resource management may be smoothly performed using a plurality of frequency sets classified based on a utilization state of each sub-frequency resource. When a frequency sharing system using the same radio access technology (RAT) as a frequency sharing system to be assigned with a frequency resource exists, it is possible to reduce overhead for frequency sharing by priorly assigning a corresponding frequency resource to the frequency sharing system to be assigned with the frequency resource.

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Номер записи: 68
23-08-2012 дата публикации

Interconnected radio network

Номер: US20120213106A1
Автор: Franz Boehm
Принадлежит: Individual

A method for establishing and operating a wireless, packet switching data transmission network can be performed by a network in which: an omnidirectional module sends request information containing the station number of a first radio station to other radio stations in the range of reception thereof after having switched on said first radio station, and in which the radio stations receiving the request information send response information containing their respective station numbers to the first radio station, and in which the first radio station sends connection requests to those radio stations from which it has received response information, and in which the first radio station uses its directional radio module to establish a directional radio link for transmitting data packets in the mesh network to the directional radio module of at least one second radio station which has responded positively to the connection request.

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Номер записи: 69
30-08-2012 дата публикации

Methods for generating radio frequency maps of networks

Номер: US20120220295A1
Автор: Benjamin Cheung, Brahm Parasher, Gopal N. Kumar, Padma Sudarsan, Tracey G. Dwyer, Victor DaSilva
Принадлежит: Alcatel Lucent USA Inc

At least one example embodiment discloses a method of generating a radio frequency (RF) map of a network. The method includes obtaining, by a controller, received signal strengths of at least one user equipment (UE) in a first technology network, determining, by the controller, a back projection of a second technology network based on the received signal strengths, and generating, by the controller, an RF map of the second technology network based on the determining. The back projection represents an attenuation function of a coverage area of the second technology network and the RF map illustrates the attenuation function of the coverage area of second technology network.

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Номер записи: 70
13-09-2012 дата публикации

Method, apparatus and computer program for controlling coexistence between wireless networks

Номер: US20120230250A1
Автор: Jari Junell, Mika Kasslin, Päivi Ruuska
Принадлежит: Nokia Oyj

Method, apparatus, and computer program product embodiments are disclosed for independent wireless resource sharing on a fair basis to enable selecting the most suitable coexistence between wireless networks. Example embodiments of the invention include a method comprising receiving, at a network controller, a coexistence management service request allowing one or more network controllers to make decisions concerning operational parameters of a wireless network originating the request; determining whether control of the wireless network is to be shared with one or more network controllers serving one or more wireless networks neighboring the wireless network originating the request; and in response to determining that control of the wireless network is not to be shared with the one or more network controllers serving the one or more wireless networks neighboring the wireless network originating the request, notifying the one or more network controllers serving the one or more wireless networks neighboring the wireless network originating the request that the wireless network has requested a coexistence information service.

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Номер записи: 71
20-09-2012 дата публикации

Autocorrelation-based spectrum sensing for fm signals

Номер: US20120238227A1
Автор: Hou-Shin Chen, WEN Gao
Принадлежит: Individual

A method and system for detection of available a white space channel in an area of licensed transmitters includes a detector which utilizes the autocorrelation analysis of a channel in an frequency modulated (FM) band. Calculation of the autocorrelation excludes an initial set of correlation delay values such that large values of autocorrelation are removed. The remaining autocorrelation based on higher correlation delay values exposes the sinusoidal nature of an FM transmitter operating in the selected channel. White space becomes available to a user if no transmitter is detected using the autocorrelation detection method.

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Номер записи: 72
20-09-2012 дата публикации

Method for scanning services with a multimode communication device

Номер: US20120238307A1
Автор: Michael Grannan
Принадлежит: AT&T INTELLECTUAL PROPERTY I LP

A system that incorporates teachings of the subject disclosure may include, for example, a method for receiving on a control channel signaling software for scanning portions of a television spectrum, where the control channel operates in a portion of the television spectrum. The method further includes scanning for services operating in the television spectrum according to the received signaling software, detecting one or more services operating in the television spectrum, and selecting a service of the detected one or more services operating in the television spectrum. Other embodiments are disclosed.

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Номер записи: 73
27-09-2012 дата публикации

Adaptive traffic and interference aware radio resource management

Номер: US20120244873A1
Автор: Claire-Sabine Randriamasy, Veronique Capdevielle
Принадлежит: Individual

A method for radio resources management within a set of cells (C 1 , . . . , C N ) covered by base stations (BS 1 , . . . , BSN), comprising:—retrieving traffic demands information including relative Quality of Service (QoS) and radio performance figures on each cell (C i ) from correspondent base station (BS i );—processing the traffic demands information so as to detect at least one periodic traffic pattern;—adjusting allocated radio resources for each cell (C i ) according to the detected at least one periodic traffic pattern; and—reviewing the adjusted allocated radio resources according to base stations (BS 1 , . . . BS N ) feedbacks.

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Номер записи: 74
04-10-2012 дата публикации

Femto parameter profiles based upon nearby access point

Номер: US20120252423A1
Автор: Arthur Brisebois, Thomas Wallace Henderson
Принадлежит: AT&T INTELLECTUAL PROPERTY I LP, AT&T MOBILITY II LLC

A system and methodology that facilitates efficiently and accurately defining operating parameters for a femto access point (FAP) is provided. In particular, during provisioning of the FAP, the system obtains operating parameters utilized by a nearby FAP expected to have a substantially similar radio environment as the provisioning FAP. Moreover, weighting is applied to the nearby FAP to determine which set of operating parameters to utilize at the provisioning FAP. Accordingly, pre-existing operating parameters, optimized by the nearby FAP are employed to augment initial network listen measurements performed at the provisioning FAP, and thus improve speed and accuracy of initial FAP parameter provisioning.

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Номер записи: 75
18-10-2012 дата публикации

Control Channel Coordination in Heterogeneous Networks

Номер: US20120263093A1
Автор: Frank Frederiksen, Klaus Ingemann Pedersen, Risto Juhani Mononen, Sabine ROESSEL, Troels Emil Kolding
Принадлежит: NOKIA SIEMENS NETWORKS OY

An apparatus, method, system and computer program product provide control channel coordination in heterogeneous networks. Parameters are provided indicating the availability of resources, wherein a resource is defined as an available radio frequency per time interval, and parameters indicate configuration of a physical channel configured for downlink control, for a physical control channel configured for format indication, and for a physical channel configured for HARQ indication, for use in both of two different communication cells providing radio communication services for terminals located therein. Further, a first resource allocation set and a second resource allocation set are determined, wherein determinations of the first resource allocation set and the second resource allocation set are made to be as mutually disjoint in resource allocation as possible in consideration of the parameters.

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Номер записи: 76
01-11-2012 дата публикации

Cell reselection process for wireless communications

Номер: US20120275371A1
Автор: Mohammed Sammour, Shankar Somasundaram, Ulises Olvera-Hernandez
Принадлежит: InterDigital Technology Corp

A method of cell reselection in a wireless communications system where parameters are transmitted by the network in system information blocks to WTRU's on the network. Parameters are either added or subtracted from an equation representing the signal level and/or quality of a cell. Parameters may be prioritized. The results of the calculations are used to rank the servicing cell and neighboring cells. If a neighboring cell has a higher quality than the servicing cell, then the WTRU reselects the better cell. The network may transmit a blacklist of cells where the WTRU cannot camp as well as a barring timer for each cell where if the timer expires, the cell can again be considered for reselection. Information germane to the reselection decision may be transmitted and used by the network.

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Номер записи: 77
08-11-2012 дата публикации

Method and device for adjusting service processing resources of a multi-mode base station system

Номер: US20120281587A1
Автор: Hengqiang Yang
Принадлежит: Huawei Technologies Co Ltd

A method and a device for adjusting service processing resources of a multi-mode base station system are provided, which relate to the wireless communication technology, so as to reduce the operation difficulty and the maintenance cost of the multi-mode base station system. The method includes: periodically acquiring traffic model data of each wireless access standard of the multi-mode base station system; determining service processing resources required by each wireless access standard according to the traffic model data; and adjusting service processing resources of each wireless access standard according to the determined service processing resources required by each wireless access standard. The device and method are mainly used in the multi-mode base station system.

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Номер записи: 78
08-11-2012 дата публикации

Controlling mobility in cellular networks

Номер: US20120282931A1
Автор: Andrea Giustina, Housam AI Housami
Принадлежит: Ubiquisys Ltd

A cellular basestation can select its own mobility parameters in order to achieve desirable effects in terms of the overall network performance. When a cellular basestation forms part of a group of such basestations on a single local area network, it can receive information from the other basestations in the group, for example relating to the loading on the other basestations, and can use this information in order to set mobility parameters. Where the basestation receives loading information from other basestations in the group, it can set mobility parameters so that a user equipment device becomes less likely to select a more highly loaded cell, and more likely to select a less highly loaded cell.

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Номер записи: 79
08-11-2012 дата публикации

Methods and arrangements in a wireless communication system

Номер: US20120282934A1
Автор: Arne Simonsson, Bo Hagerman, Per BURSTRÖM, Per Skillermark, Peter De Bruin
Принадлежит: Telefonaktiebolaget LM Ericsson AB

Method and arrangement ( 600 ) in a first network node ( 120 - 1 ), serving a first cell ( 130 - 1 ), for forming a coordination group for coordinating multipoint wireless communication. The method comprising determining ( 502 ) interference within the first cell ( 130 - 1 ). Also, the method comprises identifying ( 503 ) a second network node ( 120 - 2 ), which is either transmitting radio signals causing the interference, serving a user equipment ( 110 - 1 ), which transmits radio signals causing the interference, or being the intended recipient of radio signals causing the interference. Additionally, the method comprises transmitting ( 504 ) a token to the identified second network node ( 120 - 2 ), inviting it to coordinate the wireless communication. Furthermore, in addition, if acceptance is received, the method comprises forming ( 505 ) a coordination group together with the second network node ( 120 - 2 ), and coordinate the wireless communication. Further, a method and arrangement ( 800 ) in a second network node ( 120 - 2 ) is presented.

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Номер записи: 80
15-11-2012 дата публикации

Apparatus and method of managing radio bearer in wireless communication system

Номер: US20120287845A1
Автор: Seung June Yi, Sung Duck Chun, Sung Jun Park
Принадлежит: LG ELECTRONICS INC

A method and apparatus of managing a radio bearer is disclosed. A relay node (RN) sets up at least one UuRB for a Uu interface between a user equipment (UE) and the RN and a UnRB for a Un interface between the RN and a base station (BS). The at least one UuRB is mapped to the UnRB according to quality of service (QoS) guaranteed by the at least one UuRB to setup a RB between the UE and the BS.

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Номер записи: 81
15-11-2012 дата публикации

Cognitive radio base station and communication method thereof in multi-user multiple-input multiple output cognitive radio network system

Номер: US20120289266A1
Автор: Byung Jang Jeong, Hoi Yoon Jung, Jae Hyun Park, Jung Sun Um, Sung Hyun Hwang
Принадлежит: Electronics and Telecommunications Research Institute ETRI

A communication method for a cognitive radio (CR) base station in a multi-user multiple-input multiple-output (MIMO) CR communication system including the CR base station and CR terminals, may include calculating, from an interference channel, an orthogonal projection matrix to be used for removing interference on a primary user through use of a zero forcing (ZF) processing scheme, and obtaining a beamforming weight vector for each of the CR terminals, through use of the orthogonal projection matrix.

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Номер записи: 82
29-11-2012 дата публикации

Zero delay frequency switching with dynamic frequency hopping for cognitive radio based dynamic spectrum access network systems

Номер: US20120300811A1
Автор: Wendong Hu
Принадлежит: STMicroelectronics lnc USA

This invention relates to cognitive radio based wireless communications of dynamic spectrum access networks, and in particular to a method of addressing zero-delay frequency switching for cognitive dynamic frequency hopping. The method combines regular (periodic) channel maintenance with dynamic frequency hopping over a cluster of vacated channels that are initially setup such that the switching delays for channel setup and channel availability check are eliminated.

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Номер записи: 83
06-12-2012 дата публикации

Radio communication device, radio communication method and radio communication system

Номер: US20120307737A1
Автор: Yuichi Morioka
Принадлежит: Sony Corp

To be provided is a radio communication device including a packet generation unit for generating a packet including first decoding information that can be recognized by a radio communication device corresponding to a first communication scheme, second decoding information that can be recognized by a radio communication device corresponding to a second communication scheme and third decoding information that can be recognized by a radio communication device corresponding to a third communication scheme, and a transmission unit for transmitting the packet generated by the packet generation unit.

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Номер записи: 84
06-12-2012 дата публикации

Flyway Generation in Data Centers

Номер: US20120311127A1
Автор: Daniel Halperin, Jitendra Padhye, Paramvir Bahl, Srikanth Kandula
Принадлежит: Microsoft Corp

The subject disclosure is directed towards configuring and controlling wireless flyways (e.g., communication links between server racks provisioned on demand in a data center) to operate efficiently and without interfering with one another. Control and flyway selection may be based upon steered antenna directionality, channel, location in the data center, transmit power, and measured and/or predicted (estimated) network traffic. Flyways also may be used to route indirect traffic to reduce traffic on a bottleneck (e.g., wired) link. A payload may be sent over a over a wireless flyway with acknowledgment via a wired backchannel so that wireless communication is in one direction. The lack of interference and communication in one direction facilitates flyway operation without a backoff function and/or without clear channel assessment.

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Номер записи: 85
13-12-2012 дата публикации

Efficient Transmission for Low Data Rate WLAN

Номер: US20120314653A1
Автор: Yong Liu
Принадлежит: MARVELL WORLD TRADE LTD

A signal field is generated to include (i) a field to indicate that a physical layer (PHY) data unit is a control frame, and (ii) one or more of a frame control field, a receiver address (RA) field, and a cyclic redundancy check (CRC) field. A PHY data payload (i) that includes one or more of a service field, a transmitter address (TA) field, a network ID field, and a CRC field, and (ii) that omits an RA field is generated. The PHY data unit is generated to include (i) a preamble, (ii) a PHY header having the SIG field, and (iii) the PHY data payload. The PHY data unit is transmitted.

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Номер записи: 86
13-12-2012 дата публикации

Station Operation Method and Apparatus in TV Whitespace

Номер: US20120314658A1
Автор: Eunsun Kim, Yongho Seok
Принадлежит: Individual

The present invention relates to a station (hereinafter, ‘STA’) operation method and apparatus in a TV whitespace. In a TVWS band, when an STA operating as an unlicensed device with permission to operate in an available channel not used by a licensed device needs to operate in the TVWS band by acquiring information on the available channel, the STA transmits an available channel information request message to a device having database information; receives, from the device having database information, an ACK message for the available channel information that includes (a) identification information on an available channel, (b) information on the maximum allowable power level in the available channel, and (c) information on valid time of the available channel; and transmits/receives a signal using the information of (a), (b) and (c), i.e., using the maximum allowable power level within the valid time in the available channel.

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Номер записи: 87
13-12-2012 дата публикации

Systems, devices and methods for providing access to a distributed network

Номер: US20120314683A1
Автор: Elad Barkan
Принадлежит: BARKAN WIRELESS IP HOLDINGS LP

Systems and apparatus, and methods relating thereto, can be implemented to include base station having a transceiver adapted to establish a radio-frequency link with a mobile telephone; a first interface, separate from said transceiver, that is adapted for communication over the public Internet; and a controller. The controller can be adapted to obtain, from a server accessed via the public Internet, gateway address information for a remote gateway that provides an interface between the public Internet and a network of a telephone service provider and route data from the mobile telephone, over the public Internet, to the remote gateway.

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Номер записи: 88
13-12-2012 дата публикации

Efficient Transmission for Low Data Rate WLAN

Номер: US20120314695A1
Автор: Yong Liu
Принадлежит: MARVELL WORLD TRADE LTD

A network interface device utilizes a physical layer (PHY) protocol data unit (PPDU) maximum duration such that, (A) when operating in a first mode of operation, a data unit (i) defined by a protocol in a layer above a PHY protocol in a protocol stack and (ii) having a maximum length defined by the protocol above the PHY protocol will fit entirely within a single PPDU at a lowest possible data rate in the first mode of operation, and (B) when operating in a second mode of operation, the data unit (i) defined by the protocol in the layer above the PHY protocol and (ii) having the maximum length defined by the protocol above the PHY protocol will not fit entirely within a single PPDU at a lowest possible data rate in the second mode of operation.

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Номер записи: 89
13-12-2012 дата публикации

System and method for determining the severity of interference in different areas of a cellular radio network and coordinating radio resource management features in response

Номер: US20120315935A1
Автор: Ke Wang Helmersson, Martin HESSLER
Принадлежит: Individual

An interference analysis tool for identifying an interference problem area in a cellular radio network in which at least a first User Equipment (UE 1 ) and a second UE (UE 2 ) operate. The tool receives signal quality measurements and determines uplink or downlink interference severity. For UE 2 uplink interference, the tool determines a first uplink Signal-to-Interference-and-Noise-Ratio (SINR) experienced by UE 2, wherein the first SINR includes uplink interference from UE 1. The tool also determines a second uplink SINR level (SINR 0 ) experienced by UE 2, wherein SINR 0 does not include the uplink interference from UE 1 . The tool calculates a difference (ΔSINR) between SINR and SINR 0 for UE 2, and identifies the area where UE1 is operating as an interference-causing area when the ΔSINR for UE 2 is greater than a threshold value. The tool may present interference severity levels to an operator, and may initiate Radio Resource Management (RRM) procedures to mitigate interference problems in the network.

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Номер записи: 90
13-12-2012 дата публикации

Communication control method, communication system, and management server

Номер: US20120315936A1
Автор: Ryo Sawai, Ryota Kimura
Принадлежит: Sony Corp

A management server in a network including a first transmitting device that communicates with a first receiving device and a second transmitting device that communicates with a second receiving device. The management server includes a network interface that receives a parameter corresponding to a level of improvement of communication quality at the second receiving device, and a processor that calculates an allowable interference amount at the first receiving device based on the parameter.

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Номер записи: 91
13-12-2012 дата публикации

Reducing spectrum interference between wireless networks

Номер: US20120315942A1
Автор: Chao Zhu, Hai Zhan, Jianbin Tang, Jun Song Wang, Qing Wang, RONG Yan, Yonghua Lin, Zhen Bo Zhu
Принадлежит: International Business Machines Corp

A method and apparatus for reducing spectrum interference between wireless networks. This is realized by arranging at least one sub-coordinating apparatus, namely, a monitoring apparatus, in respective wireless network, and by arranging a coordinating apparatus, namely, an allocation apparatus in the whole network. Wherein, the sub-coordinating apparatus monitors the spectrum utilization situation of the wireless network where it is located, reports it to the coordinating apparatus, and requests the coordinating apparatus for spectrum resource when new spectrum resource is needed. The coordinating apparatus maintains the spectrum utilization information of each wireless network, and allocates appropriate spectrum resource to the sub-coordinating apparatus which requests spectrum resource based on the maintained information. Therefore, the interference of inter-wireless networks is reduced or even avoided through such overall management that the coordinating apparatus allocates corresponding spectrum resources to a plurality of wireless networks capable of sharing spectrum resources.

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Номер записи: 92
20-12-2012 дата публикации

Method and Device for Identifying Neighboring Pseudorandom Number Confusion

Номер: US20120320873A1
Автор: Chunxiao Zhou
Принадлежит: ZTE Corp

A method and apparatus for identifying a confusion of neighboring pseudo numbers (PN) are provided. The method includes: obtaining a first location information when a mobile station establishes a call with a reference base station where a reference sector is located, and a second location information after establishing a handover in a process of said call, with a neighboring base station where a valid non-reference sector is located; and when a deviation between said first location information and said second location information is larger than a threshold and said mobile station drops the call after establishing the handover, determining that the confusion of the neighboring PNs exists in said neighboring base station. The present invention is able to fast identify the confusion of the neighboring PNs in the existing CDMA network, and achieve the object of optimizing the network quality and improving the product competitiveness.

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Номер записи: 93
20-12-2012 дата публикации

Communication control method, communication system, and management server

Номер: US20120322388A1
Автор: Ryo Sawai
Принадлежит: Sony Corp

Provided is a communication control method including: determining whether or not reception quality of a second reception device satisfies a predetermined reference in a communication system including a first transmission device, a first reception device, a second transmission device secondarily using a frequency having been assigned to the first transmission device, and the second reception device; and, when it is determined that the reception quality of the second reception device does not satisfy the predetermined reference, additionally performing reception beam steering by the first reception device, beam steering by the first transmission device, reception beam steering by the second reception device, or transmission beam steering by the second transmission device in a predetermined order.

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Номер записи: 94
27-12-2012 дата публикации

Mobile communication system, base station, cell coverage control method

Номер: US20120327909A1
Автор: Hitoshi Koike, Koji Ogawa, Tohru Nakahara
Принадлежит: Fujitsu Ltd

There is provided a mobile communication system, a base station, and a method of controlling cell coverage that is capable of operating a mobile communication system such that the cell coverage is maintained approximately and timely at a target level without requiring much labor. In this mobile communication system, a mobile station reports to the base station the position information of the mobile station and the value of reception power of reference signal from the base station. The base station obtains the measured cell coverage as a result of measurement of cell coverage based on the position information and the value of reception power from the mobile stations, and controls at least one of plural parameters including transmission power to the mobile stations, tilt angle of antenna, etc., so as to minimize deviation of the measured cell coverage from the target cell coverage.

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Номер записи: 95
27-12-2012 дата публикации

Apparatus and method for controlling inter-cell interference

Номер: US20120329498A1
Автор: Bin Chul Ihm, Ja Ho KOO, Ji Won Kang, Jin Young Chun, Su Nam Kim, Sung Ho Park
Принадлежит: LG ELECTRONICS INC

An apparatus and method for controlling inter-cell interference is disclosed. The user equipment for controlling inter-cell interference in a wireless communication system includes an interference level measuring module configured to measure interference levels of neighboring cells using at least one of information about the number of antennas among antennas deployed in the neighboring cells, information about indexes of the effective antennas, and information about reference signal of the neighboring cells, an interference restriction request determination module configured to compare the interference levels of the neighboring cells with a predetermined threshold and to determine whether or not UE requests an interference restriction to the neighboring cells, and a transmitter configured to transmit information about one or more neighboring cells, to which the interference restriction request will be transmitted, to a serving base station.

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Номер записи: 96
03-01-2013 дата публикации

Method and device for transmitting pilot configuration information

Номер: US20130003647A1
Автор: Libo Wang, Wenjian Zhang, Xueming PAN, Zukang Shen
Принадлежит: China Academy of Telecommunications Technology CATT

A method and device for transmitting pilot configuration information are provided for transmitting the pilot configuration information to relay nodes, and enabling the relay nodes to receive pilots according to the pilot configuration information and implement channel demodulation. Said method includes the following steps: a Node B generates a high-level signaling which includes the pilot configuration information configured for the Relay-Physical Downlink Control Channel (R-PDCCH); the Node B transmits said high-level signaling to a relay device.

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Номер записи: 97
03-01-2013 дата публикации

Method and apparatus for allocating reservation resource for relay in wireless communication system using media access control based on reservation

Номер: US20130003689A1
Автор: Hyoung Jin Kwon, Hyun Kyu CHUNG, Kap Seok Chang, Seung Eun Hong, Sung Geun JIN, Woo Yong Lee, Yong Sun Kim
Принадлежит: Electronics and Telecommunications Research Institute ETRI

Provided is a communication method of a coordinator in a wireless networks system that uses a reservation-based media access control (MAC). The communication method includes receiving, from a source device, a frame that requests a reservation resource for a relay device, to enable a frame that the source device transmits to a destination device to be relayed via the relay device, and allocating the reservation resource for the relay device, in response to the request.

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Номер записи: 98
03-01-2013 дата публикации

System and Method for Dynamic Coordination of Radio Resources Usage in a Wireless Network Environment

Номер: US20130005240A1
Автор: David Steer, Dongsheng Yu, Robert Novak
Принадлежит: Research in Motion Ltd

An architecture, system and associated method for dynamic coordination of radio resource usage in a network environment. In one aspect, a relay communication method comprises detecting, by a first wireless mobile device, sensory data associated with multiple radio channels relative to at least one radio element in a sensing area of the first wireless mobile device. If the first wireless mobile device is out of range of a wide area cellular network, a short-range wireless communication path is established with a second wireless mobile device having a wide area cellular communication connection. The sensory data is transmitted by the first wireless mobile device to the second wireless mobile device for reporting to a network element via a wide area cellular network serving the second wireless mobile device.

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Номер записи: 99
03-01-2013 дата публикации

Method and apparatus for mapping operating parameter in coverage area of wireless network

Номер: US20130005297A1
Автор: Susan W. Sanders, Tian Bu
Принадлежит: Alcatel Lucent USA Inc

A method for mapping an operating parameter in a coverage area of a wireless network includes obtaining parameter measurements for an operating parameter associated with mobile stations operating in a select portion of a network coverage area for a wireless network, the network coverage area formed by base stations defining cellular coverage areas, the select portion formed by at least one base station, each at least one base station including multiple sector antennas, each sector antenna defining a sector coverage area within the cellular coverage area; and, for each obtained parameter measurement, estimating an instant geographic location of the mobile station in relation to the at least one base station serving the mobile station, each instant geographic location based on a round trip measurement and a signal strength measurement associated with the mobile station, each round trip measurement associated with the serving base station.

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Номер записи: 100