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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 98597. Отображено 102.
29-09-2005 дата публикации

ENHANCED UPLINK DEDICATED CHANNEL - APPLICATION PROTOCOL OVER IUB/IUR

Номер: WO2005089050A3
Автор: HWANG, Woonhee , RANTA-AHO, Karri
Принадлежит:

Parameters are defined for use on an interface (Iub/Iur) between network elements to enable configuration setup of an enhanced radio uplink (UL E-DCH). The basic Information Elements (IEs) are defined to support UL E-DCH functionality in the network on Iub/Iur. Particular parameters are shown for communication over the Iub/Iur. Particular parameters are shown for communication over the Iub/Iur interface between the RNCs and the Node Bs in order to be able to setup and re-configure the UL E-DCH chanel. Flexibility is provided so as not to be restricted to any particular message or information element, but to be applicable to any selected message or messages in a given protocol.

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Номер записи: 1
27-07-1994 дата публикации

Номер: KR0100079007B1
Автор:
Принадлежит:

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Номер записи: 2
05-01-2012 дата публикации

Communication Method, System and Network Nodes in a Low Power Communication Network

Номер: US20120002551A1
Автор: Fang Yan, Jie Tong, JIN Wu, Juan Juan Li, Mattias Lampe
Принадлежит: SIEMENS AG

A method for communicating in a low power communication network, a corresponding low power communication network system and a network node, where the method enables low power consumption by the data transmission node in the low power communication network while ensuring the low power communication network communicates efficiently. The network comprises a first network node and a second network node, where the first network node transmits a beacon frame that is used to indicate the time for data transmission by the first network node, and the second network node detects the beacon frame to synchronize its data transmission with the first network node.

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Номер записи: 3
05-01-2012 дата публикации

User equipment terminal, base station, and channel quality information report method

Номер: US20120002556A1
Автор: Kenichi Higuchi, Mamoru Sawahashi, Yoshihisa Kishiyama
Принадлежит: NTT DOCOMO INC

A user equipment terminal for reporting channel quality information to a base station includes a channel quality information measuring unit configured to measure channel quality information; and a channel quality information generating unit configured to generate, as the channel quality information, a difference value between a first absolute value of the measured channel quality information and a second absolute value of previously measured channel quality information. The present invention also relates to a base station and a channel quality information report method.

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Номер записи: 4
05-01-2012 дата публикации

Radio Base Station, a Network Control Node and Methods therein for Outer Loop Power Control in Dual-Carrier HSUPA

Номер: US20120002610A1
Автор: Ina Widegren, Martin Israelsson
Принадлежит: Telefonaktiebolaget LM Ericsson AB

The invention relates to a radio base station ( 13 ) for handling Outer Loop Power Control of a user equipment ( 12 ) in a radio communications network of a multiple cell ( 10,11 ) High Speed Uplink Packet Access configuration: The user equipment ( 12 ) is connected to at least two cells ( 10,11 ) using at least two carriers, one cell per carrier, wherein the radio base station ( 13 ) reports number of hybrid automatic repeat requests of the two or more carriers to a network control node ( 14 ). The radio base station ( 13 ) and the network control node ( 14 ) are comprised in the radio communications network. The radio base station determines ( 401 ) a number of hybrid automatic repeat requests over a first carrier of the at least two or more carriers, and signals ( 402 ) a user plane frame to the network control node ( 14 ). The user plane frame comprises the determined number of hybrid automatic repeat requests and an identity associated to the first carrier, enabling the network control node ( 14 ) to control an Outer Loop Power Control parameter to be used in an Outer Loop Power Control process for the first carrier.

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Номер записи: 5
05-01-2012 дата публикации

Mobile communication system and operation method in mobile communication

Номер: US20120002705A1
Автор: Yasuaki Ishikawa
Принадлежит: NEC Corp

A mobile communication system includes: a base station configured to form a cell and transmit a downlink signal which has been spread with a downlink scrambling code, toward the cell; a mobile station connected with the base station by radio when the mobile station is in the cell, and configured to communicate with a counter side station through the base station; and a relay station configured to receive the downlink signal, generate a limitation downlink signal showing a limitation area in which a function of the mobile station is limited, based on the downlink signal, and transmit the limitation downlink signal which has been spread with a specific scrambling code different from the downlink scrambling code, toward the limitation area. The downlink signal contains a base station peripheral cell list showing a scrambling code used in another base station on a periphery of the base station. The relay station determines the specific scrambling code based on the base station peripheral cell list when receiving the downlink signal.

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Номер записи: 6
10-03-2013 дата публикации

АНТЕННОЕ УСТРОЙСТВО ДЛЯ СВЯЗИ МОБИЛЬНЫХ УСТРОЙСТВ С БАЗОВОЙ СТАНЦИЕЙ

Номер: RU0000125801U1
Автор: Бондаренко Олег Николаевич, Волошин Аркадий Иосифович, Осипова Елена Викторовна, Солдаткин Андрей Степанович, Титов Александр Викторович
Принадлежит: ОБЩЕСТВО С ОГРАНИЧЕННОЙ ОТВЕТСТВЕННОСТЬЮ "РЭМО"

1. Антенное устройство для связи мобильных устройств с базовой станцией, содержащее активный излучающий элемент и пассивный элемент, отличающееся тем, что активным излучающим элементом является встроенная приемопередающая антенна мобильного устройства, при этом активный излучающий элемент совместно с пассивным элементом формируют одностороннюю диаграмму направленности антенного устройства. 2. Антенное устройство по п.1, отличающееся тем, что активным излучающим элементом является встроенная приемопередающая антенна USB-модема. 3. Антенное устройство по п.1, отличающееся тем, что активным излучающим элементом является встроенная приемопередающая антенна роутера. 4. Антенное устройство по п.1, отличающееся тем, что активным излучающим элементом является встроенная приемопередающая антенна мобильного телефона. 5. Антенное устройство по п.1, отличающееся тем, что активным излучающим элементом является встроенная приемопередающая антенна коммуникатора. 6. Антенное устройство для связи мобильных устройств с базовой станцией в сетях сотовой связи, содержащее активный излучающий элемент и несколько пассивных элементов, отличающееся тем, что активным излучающим элементом является встроенная приемопередающая антенна мобильного устройства, при этом активный излучающий элемент совместно с пассивными элементами формируют одностороннюю диаграмму направленности антенного устройства. 7. Антенное устройство по п.1, отличающееся тем, что активным излучающим элементом является встроенная приемопередающая антенна USB-модема. 8. Антенное устройство по п.1, отличающееся тем, что активным излучающим элементом является встроенная приемопередающая антенна роутера. 9. Антенное устройство по п.1, отличающееся тем, что активным излучающим элементом является встроенная приемопередающая антенна мобильного телефона. 10. Антенное устройство по п.1, отличающееся тем, что активным излучающим элементом является встроенная приемопередающая антенна коммуникатора. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) ...

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Номер записи: 7
05-01-2012 дата публикации

Mobile communication system and mobile communication method

Номер: US20120003971A1
Автор: Yasuaki Ishikawa
Принадлежит: NEC Corp

A mobile communication system includes a mobile station connected with a base station by radio when being in a cell formed by the base station, and configured to communicate with a counter side unit through the base station; and a relay station configured to form a limitation area. The relay station receives a downlink signal from the base station and transmits a limitation downlink signal obtained by adding information showing that it is in the limitation area to the downlink signal to the limitation area. When receiving the limitation downlink signal, the mobile station transmits an uplink signal showing a function limited state to the base station in synchronization with a downlink channel received from the base station.

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Номер записи: 8
05-01-2012 дата публикации

Reverse link power control for wireless communication systems

Номер: US20120003986A1
Автор: Alexei Gorokhov, Naga Bhushan
Принадлежит: Qualcomm Inc

Assigning power spectrum density to access terminals within a wireless network environment is provided. Assignment information that includes assignment of reverse link transmission resources is determined and a power control instruction is created for the assigned reverse link transmission resource. An assignment message that includes both the assignment information and the power control instruction is formatted and communicated to the access terminals. The assignment message includes a Reverse Link Power Control field that indicates a transmit power spectral density assigned by the access point to the reverse-link transmission by the terminal.

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Номер записи: 9
13-08-2020 дата публикации

УСТРОЙСТВО РЕГИСТРАЦИИ МЕТОК ВРЕМЕНИ СОБЫТИЙ СИНХРОНИЗАЦИИ ИНТЕГРИРОВАННОЙ МИКРОСХЕМЫ БЕСПРОВОДНОЙ СВЯЗИ СТАНДАРТА IEEE 802.11

Номер: RU0000199082U1
Автор: Романов Алексей Михайлович
Принадлежит: Федеральное государственное бюджетное образовательное учреждение высшего образования "МИРЭА - Российский технологический университет"

Полезная модель относится к области беспроводных систем связи реального времени и может быть использована в различных областях науки и промышленности при создании устройств управления и распределенных систем ввода/вывода. Предложено устройство регистрации меток времени событий синхронизации интегрированной микросхемы беспроводной связи стандарта IEEE 802.11, которое включает в себя декодер coexistance интерфейса, вход которого подключен к выходу coexistance интерфейса интегрированной микросхемы беспроводной связи стандарта IEEE 802.11, а выход декодера coexistance интерфейса подключен к входу блока сравнения и регистрации метки времени, второй вход которого подключен к выходу встроенного таймера-счетчика устройства управления, а выход блока сравнения и регистрации метки времени подключен к передатчику интерфейса устройства управления, выход которого является выходом устройства регистрации меток времени событий синхронизации интегрированной микросхемы беспроводной связи стандарта IEEE802. 11. Полезная модель обеспечивает исключение случаев регистрации лишних меток времени для пакетов, которые не участвуют в реализации способа синхронизации устройства управления с интегрированной микросхемой беспроводной связи стандарта IEEE 802.11. 1 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 199 082 U1 (51) МПК H04W 56/00 (2009.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК H04W 56/00 (2020.02) (21)(22) Заявка: 2020112656, 27.03.2020 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Федеральное государственное бюджетное образовательное учреждение высшего образования "МИРЭА - Российский технологический университет" (RU) Дата регистрации: 13.08.2020 (45) Опубликовано: 13.08.2020 Бюл. № 23 1 9 9 0 8 2 R U (54) УСТРОЙСТВО РЕГИСТРАЦИИ МЕТОК ВРЕМЕНИ СОБЫТИЙ СИНХРОНИЗАЦИИ ИНТЕГРИРОВАННОЙ МИКРОСХЕМЫ БЕСПРОВОДНОЙ СВЯЗИ СТАНДАРТА IEEE 802.11 (57) Реферат: Полезная модель относится к области времени, второй ...

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Номер записи: 10
12-01-2012 дата публикации

Method, system and device for adaptive modulation and coding

Номер: US20120008574A1
Автор: Deshan Miao, Fei Qin, Guojun Xiao, Shiqiang Suo, Xueming PAN, YU Ding
Принадлежит: Datang Mobile Communications Equipment Co Ltd

An adaptive modulation and coding method is provided by the present invention, comprising: selecting punctured Physical Resource Blocks (PRBs) to transmit the downlink data for the User Equipment (UE); determining the Transport Block Size (TBS) and the number of punctured PRB pairs for transmission to the UE based on the carried service; scheduling the downlink data for the UE based on the determined TBS, and transmitting the number of the used punctured PRB pairs and a Modulation and Coding Scheme (MCS) sequence number to the UE; and the UE converting the number of the punctured PRB pairs to the number of normal PRB pairs, determining the modulation scheme and the TBS sequence number based on the MCS sequence number, and determining the TBS of the downlink data based on the number of the normal PRB pairs and the TBS sequence number. The specific condition when downlink data are transmitted with punctured PRBs may be performed in the present invention on the basis of utilizing the existing resources and adaptive processing of the general subframes by performing conversion between the number of punctured PRBs and the number of normal PRBs in scheduling resource for the UE with the NodeB, which may be implemented simply and efficiently.

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Номер записи: 11
12-01-2012 дата публикации

Method and communication device for feeding back and receiving pre-coding control indication information

Номер: US20120008609A1
Автор: BO Yang, Chongyang Han, Jing Li, Xueli Ma, Zongjie Wang
Принадлежит: Huawei Technologies Co Ltd

The present invention relates to the field of wireless network communications, and provides a method and a device for receiving and sending Pre-coding Control Indication (PCI) information in uplink Multiple-Input Multiple Output (MIMO) transmission or uplink Closed Loop Transmit Diversity (CLTD) transmission, so as to solve a problem that the uplink MIMO communication from a terminal to a Base Station (BS) is unable to be realized in the prior art. A BS transmitting method includes carrying a code sequence, which represents PCI information, in a feedback channel of a BS. The beneficial effect of the present invention is: by feeding back the PCI information, the terminal realizes the maximization of a block length supported by an existing channel condition after the uplink MIMO is introduced, so as to improve an uplink transmission rate.

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Номер записи: 12
12-01-2012 дата публикации

Method for informing user equipment of downlink control message construction information in cellular system

Номер: US20120009934A1
Автор: Bin Chul Ihm, Jeong Ki Kim, Jin Soo Choi, Su Nam Kim
Принадлежит: LG ELECTRONICS INC

A method for transmitting control messages from a base station to a user equipment in a cellular system is disclosed. The method includes grouping a plurality of control messages for at least one user equipment based on at least one criteria of whether or not uplink ACK/NACK channel indexes are allowed to be implicitly used in the control messages, whether or not the user equipment corresponding to the control messages is able to implicitly use the uplink ACK/NACK channel indexes, sizes of Information Elements (IEs) of the control messages, whether or not the control messages are segmented into a predetermined number of subblocks, MCS levels applied to the control messages, sizes of allocated IEs of the control messages after applying the MCS levels, and frequency partitions in which the IEs of the control messages are present, and transmitting the grouped control messages.

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Номер записи: 13
19-01-2012 дата публикации

Power save mechanism for wireless communication devices

Номер: US20120014305A1
Автор: Jakub Majkowski, Naveen Kakani
Принадлежит: Nokia Oyj

Method, apparatus, and computer program product embodiments are disclosed to enable power save modes of operation between mobile wireless devices for direct data transfer in an infrastructure BSS. An example embodiment inserts in a message that is transmitted by the transmitting mobile wireless device, a specified time when a next active direct data transfer period will start so that the devices can remain in power save mode in a direct data transfer link until that time. Then, when the next active direct data transfer period is about to start, the receiving device sends a trigger signal based on the specified time, the trigger signal indicating that the next period is about to start. This confirms to the transmitting device that the receiving device has awakened, so that the transmitting device may start transmitting the data to the receiving device via the direct data transfer link.

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Номер записи: 14
19-01-2012 дата публикации

Radio communication system, relay device, control device, and communication method

Номер: US20120015601A1
Автор: Masafumi Tsutsui
Принадлежит: Fujitsu Ltd

A radio communication system including a first communication device configured to transmit a signal, a relay device which includes a receiver configured to receive the transmitted signal, an amplifier configured to amplify the received signal according to a gain determined by a processor included in a control device, and a transmitter configured to transmit the amplified signal to a second communication device, the second communication device being configured to receive the amplified signal, and the transmitted signal, which is transmitted directly from the first communication device, and the control device being configured to improve a reception quality of the amplified signal and the directly transmitted signal.

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Номер записи: 15
19-01-2012 дата публикации

Methods and apparatus of transmission power control in the presence of interference

Номер: US20120015678A1
Автор: Junyi Li, Sundar Subramanian, Xinzhou Wu
Принадлежит: Qualcomm Inc

A method of operating a wireless device is provided in which an interference level on a resource is determined. In addition, a signal is transmitted on the resource with a first power when the interference level is low. The first power is such that the signal is received with a first SNR. Furthermore, the signal is transmitted on the resource with a second power when the interference level is high. The second power is such that the signal is received with a second SNR less than the first SNR.

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Номер записи: 16
26-01-2012 дата публикации

Methods and apparatus to transmit uplink allocation indicators in wireless communications

Номер: US20120020304A1
Автор: Ayman Ahmed Abdel-Samad, Christopher Harris Snow, David Philip Hole, Dinesh Kumar Arora, Nazih Almalki
Принадлежит: Research in Motion Ltd

Example methods and apparatus to transmit uplink allocation indicators in wireless communications are disclosed. A disclosed example method involves sending a first assignment message indicative of first radio block periods assigned to the mobile station for downlink communications. At least one of the first assigned radio block periods is separated from a next occurring one of the first assigned radio block periods by at least a first non-assigned radio block period. In addition, the example method involves sending a second assignment message indicative of second radio block periods assigned to the mobile station for uplink communications. At least one of the second assigned radio block periods is separated from a next occurring one of the second assigned radio block periods by at least a second non-assigned radio block period. The example method also involves sending an uplink allocation indicator to the mobile station during one of the first radio block periods assigned for downlink communications with the mobile station. The uplink allocation indicator allocates an uplink radio block to the mobile station in at least one of the second radio block periods.

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Номер записи: 17
26-01-2012 дата публикации

Method and apparatus for alarming in a power supply modulated system

Номер: US20120021708A1
Автор: Rizwan Murji
Принадлежит: Motorola Inc

A communication device is presented that has different processors and a power amplifier. One of the processors receives a signal from a monitor and indicates that an alarm exists to a diagnostics module. The other processor uses the envelope signal of the input signal to be amplified and either the signal from the diagnostics module, the monitor or the power amplifier to adjust modulation of the power supply of the power amplifier dependent on the type of alarm. The power supply voltage or headroom is maximized or frozen at the value of the last detection cycle if a fault or impairment, respectively, of the power amplifier is detected.

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Номер записи: 18
02-02-2012 дата публикации

Direct link relay in a wireless network

Номер: US20120026895A1
Автор: Menzo Wentink
Принадлежит: Individual

Disclosed herein are exemplary techniques for power conservation in a wireless network. A wireless device identifies another wireless device suitable to act as a relay node. Uplink information is transmitted to the other wireless device, which is in turn relayed to an access point for transmission to its destination. Downlink information may be transmitted directly from the access point to the wireless device. The use of a relay node may reduce transmit power consumption as the relay node may be closer to, or support a higher transmit rate, than the access point with which the wireless device is associated.

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Номер записи: 19
02-02-2012 дата публикации

Method and apparatus for sending feedback for a downlink shared service and estimating a number of wireless transmit/receive units

Номер: US20120026913A1
Автор: Alexander Reznik, Christopher R. Cave, Eldad M. Zeira, Paul Marinier
Принадлежит: InterDigital Patent Holdings Inc

A method and an apparatus for sending a signal on a contentious feedback channel for a downlink shared service and for estimating a number of wireless transmit/receive units (WTRUs) are disclosed. When a transmission criterion associated with a physical random access feedback channel (P-RAFCH) is satisfied, a physical resource is randomly selected among a plurality of physical resources assigned for the P-RAFCH and a pre-configured signal is sent using the selected physical resource. A Node-B receives the pre-configured signal from a plurality of WTRUs and calculates a number of the WTRUs based on a number of used physical resources. The transmission criterion is at least one of successful reception of a data packet on a downlink physical channel, successful reception of a data block on a data service, reception of a signaling command, occurrence of a measurement event, and failure to receive a transmission after a specified number of times.

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Номер записи: 20
02-02-2012 дата публикации

Power Savings in Access Points

Номер: US20120026925A1
Автор: Ramprasad Vempati
Принадлежит: Aruba Networks Inc

Power savings in Access Points (APs). Legacy 802.11 modes such as 802.11a, b, g use one transmitter/receive chain per radio. High Throughput (HT) 802.11n modes use multiple (2, 3, or more) transmit/receive chains per radio. Power consumed by the AP may be reduced by powering off unused transmit and/or receive chains. Multiple transmit chains are only powered up when HT 802.11n transmissions requiring them are made. Using protected mode signaling, the AP powers up multiple receive chains needed for HT 802.11n reception on receiving an RTS packet indicating that an 802.11n client wishes to send 802.11n HT data. Transmit and/or receive chains may be powered up with minimum on times. Only certain elements of a chain may be powered up and down, with those elements requiring a great deal of settling time left powered on. Transmit chains may be powered p on the reception of an RTS frame indicating arrival of HT 802.11 data.

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Номер записи: 21
02-02-2012 дата публикации

Method and Apparatus for Grant Loss Detection and Related Processing in a Wireless Communication Network

Номер: US20120026985A1
Автор: Hong Ren, Patrick Lie Chin Cheong, Xiao-Dong Li, Xixian Chen
Принадлежит: Telefonaktiebolaget LM Ericsson AB

The present invention provides a method and apparatus for improving wireless communication network performance and efficiency, based on detecting the occurrence of grant loss in relation to the transmission of scheduling grants to mobile terminals over a downlink control channel. Grant loss detection is based on detecting erasure events corresponding to the transmitted scheduling grants, and the incidence of grant loss with respect to a given mobile terminal can be tracked and used to compensate the control value(s) used for link adaptation of the downlink control channel, with respect to that terminal. Additionally, or alternatively, when a given grant is determined to be lost, a new grant is sent and the HARQ redundancy version is reset for the newly scheduled transmission.

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Номер записи: 22
02-02-2012 дата публикации

System-Assisted Wireless Local Area Network Detection

Номер: US20120026993A1
Автор: Assad Radpour
Принадлежит: AT&T MOBILITY II LLC

In one or more embodiments, one or more methods and/or systems described can perform determining a position of a mobile device coupled to a first network; determining that the position of the mobile device is within a communications range of at least one wireless access point coupled to a second network; and transmitting a first signal to the mobile device via the first network, where the first signal indicates to apply power or greater power to a transceiver configured to communicate with the at least one wireless access point. In one or more embodiments, the mobile device can include a first transceiver configured to communicate with the first network and a second transceiver configured to communicate with the second network via the at least one wireless access point and can perform receiving the first signal from the first network and applying power or greater power to the second transceiver.

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Номер записи: 23
02-02-2012 дата публикации

Base station, communication system including base station and transmission method

Номер: US20120027124A1
Автор: Akihiko Matsuoka, Katsuaki Abe, Kiyotaka Kobayashi, Masayuki Orihashi, Yutaka Murakami
Принадлежит: Panasonic Corp

Channel fluctuation values on propagation paths of modulated signals transmitted from a plurality of antennas are estimated, an eigenvalue of a channel fluctuation matrix created with the above-mentioned channel fluctuation values as elements is found in order to relate antenna received signals to modulated signals, and using that eigenvalue, receiving antenna selection, combining of modulated signals, and weighting processing on soft decision decoded values, are performed, and modulated signals are demodulated. By this means, it is possible to perform demodulation processing based on the effective reception power of a modulated signal (that is to say, the essential reception power, of the reception power obtained by a receiving apparatus, that can be effectively used when demodulating a modulated signal), enabling the precision of demodulation of modulated signals to be improved.

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Номер записи: 24
02-02-2012 дата публикации

Method and apparatus for setting a transmit power level

Номер: US20120028629A1
Автор: Akhilesh Pokhariyal, David Neil, John Yearsley Bromell, Yajian Liu
Принадлежит: IP Access Ltd

An access point for supporting communication in a femto cell of a cellular communication network. The access point comprises transceiver circuitry arranged to enable communication with at least one cell subscribed wireless communication unit located within the femto cell, and signal processing logic module. The signal processing logic is arranged to configure a transmit power level of a Common Pilot CHannel (CPICH) for transmission based at least on cell subscribed wireless communication unit information.

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Номер записи: 25
02-02-2012 дата публикации

Method and apparatus for controlling uplink power in wireless communication system

Номер: US20120028673A1
Автор: Su-Ryong Jeong
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A method is provided for controlling an uplink (UL) power by a Mobile Station (MS) in a wireless communication system including an upper-layer Base Station (BS) and a lower-layer BS whose cell coverage is narrower than that of the upper-layer BS. The method also includes measuring a first received signal strength indicating a received signal strength of a first reference signal received from the upper-layer BS, and a second received signal strength indicating a received signal strength of a second reference signal received from the lower-layer BS, acquiring a transmission (TX) power ratio representative of a ratio of a first TX power indicating a TX power of the upper-layer BS to a second TX power indicating a TX power of the lower-layer BS, selecting a first serving BS indicating a UL serving BS to which the MS will transmit a UL signal, from among the upper-layer BS and the lower-layer BS, and determining a UL TX power, based on the first received signal strength, the second received signal strength, and the TX power ratio, and transmitting the UL signal to the first serving BS using the UL TX power.

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Номер записи: 26
09-02-2012 дата публикации

Method and arrangement for power control

Номер: US20120033578A1
Автор: Nicholas William Anderson
Принадлежит: Individual

A method for setting a power control level ( 600 ) in a wireless communication system. The method includes the steps of obtaining ( 620 ) transmission information from a wireless subscriber unit, and modifying a power control level and/or a communication channel format ( 660 ) in response to said transmission information. Preferably, the transmission information is re-transmission requests from a wireless subscriber unit, which are transmitted frequently. In this manner, rapid adjustment of power control can be attained utilising an optimal selection of the available communication channel format, followed by a fine-tuning power control operation.

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Номер записи: 27
09-02-2012 дата публикации

Method for performing a harq operation in a radio communications system, and method and apparatus for allocation of subframes

Номер: US20120033588A1
Автор: Hyun Soo Ko, Jae Hoon Chung, Kyu Jin Park, Moon II Lee, Seung Hee Han, So Yeon Kim, Yeong Hyeon Kwon
Принадлежит: LG ELECTRONICS INC

There is provided a method for allocating subframes in a radio communications system that performs communication by using a radio frame including a plurality of subframes, the method including: selecting a backhaul downlink subframe in which a base station is to transmit a signal to a relay station; and allocating the backhaul downlink subframe to a substitution subframe which is not limitation subframes, when the selected backhaul downlink subframe corresponds to one of the limitation subframes, wherein the limitation subframes are subframes in which the relay station is to transmit essential information to a relay user equipment. Therefore, it is possible to overcome a limitation that is present in a link between the base station and the relay station, perform an HARQ operation, and improve the efficiency of radio resource allocation.

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Номер записи: 28
09-02-2012 дата публикации

Envelope power supply calibration of a multi-mode radio frequency power amplifier

Номер: US20120034893A1
Автор: Brian Baxter, Jason Millard, Roman Zbigniew Arkiszewski, Steven Selby
Принадлежит: RF Micro Devices Inc

The present disclosure relates to envelope power supply calibration of a multi-mode RF power amplifier (PA) to ensure adequate headroom when operating using one of multiple communications modes. The communications modes may include multiple modulation modes, a half-duplex mode, a full-duplex mode, or any combination thereof. As such, each communications mode may have specific peak-to-average power and linearity requirements for the multi-mode RF PA. As a result, each communications mode may have corresponding envelope power supply headroom requirements. The calibration may include determining a saturation operating constraint based on calibration data obtained during saturated operation of the multi-mode RF PA. During operation of the multi-mode RF PA, the envelope power supply may be restricted to provide a minimum allowable magnitude based on an RF signal level of the multi-mode RF PA, the communications mode, and the saturation operating constraint to provide adequate headroom.

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Номер записи: 29
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: 30
09-02-2012 дата публикации

Wireless communications apparatus and methods employing opportunistic frequency band use

Номер: US20120034944A1
Автор: George Ronald Olexa, Rajendra Singh
Принадлежит: TELCOM VENTURES LLC

A base station selectively communicates with terminals using first and second separately allocated frequency bands, e.g., separate cellular/PCS bands, of a government spectrum allocation based on propagation conditions between the base station and the terminals. The base station may transmit in the first frequency band and receive in the second frequency band during a first time slot and transmit in the second frequency band and receive in the first frequency band during a second time slot. The base station may transmit to a terminal in the first frequency band while receiving from the terminal in the second frequency band during the first time slot and may transmit to the first terminal in the second frequency band while receiving from the first terminal in the first frequency band during the second time slot.

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Номер записи: 31
09-02-2012 дата публикации

Transmission power control system, base station, and transmission power control method

Номер: US20120034947A1
Автор: Hiroyuki Hosono, Takahiro Hayashi, Takeshi Terayama
Принадлежит: NTT DOCOMO INC

A transmission power determination system configured to control a transmission power of a radio signal transmitted by a small base station in a mobile communication network including a general base station forming a predetermined cell and the small base station forming a small cell smaller in size than the predetermined cell, the transmission power determination system comprising: a reception power acquisition unit configured to acquire a reception power of a radio signal from one of a different small base station or the general base station, which can be received by the small base station; a determination unit configured to determine one of the different small base station and the general base station which transmits the radio signal acquired by the reception power acquisition unit; a pathloss value calculation unit configured to calculate, when it is determined by the determination unit that the radio signal is transmitted from the different small base station, pathloss value between the different small base station and the small base station based on a difference between a transmission power of the radio signal from the different small base station and the reception power of the radio signal from the different small base station acquired by the reception power acquisition unit; and a transmission power determination unit configured to determine the transmission power of the radio signal transmitted by the small base station, based on the pathloss value calculated by the pathloss value calculation unit.

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Номер записи: 32
16-02-2012 дата публикации

Receiving apparatus

Номер: US20120039206A1
Автор: Akihito Hanaki, Yoshikazu Goto, Yukiko Takagi
Принадлежит: NTT DOCOMO INC

A receiving apparatus ( 10 ) provided with: a management unit ( 13 ) configured to manage a target error rate Pt in a target number of retransmission Nt; a measurement unit ( 14 ) configured to measure the initial transmission rate TPUT init of the data at a transmitting apparatus ( 10 ); and a calculation unit ( 15 ) configured to calculate, with respect to an error rate P(n) in a number of retransmission n, the reception rate TPU of data at a receiving apparatus ( 10 ) by a Equation (2A). TPUT = TPUT init Nt + Pt + 1 . [ Equation   2  A ]

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Номер записи: 33
16-02-2012 дата публикации

Feedback bundling for power-limited devices in wireless communications

Номер: US20120039227A1
Автор: Jelena M. Damnjanovic, Juan Montojo, Wanshi Chen
Принадлежит: Qualcomm Inc

Methods, systems, and devices are described for bundling feedback related to downlink transmissions on a plurality of component carriers (CCs). In some examples, a base station configures a multi-carrier mobile device to use different feedback bundling schemes when it determines that the mobile device is power limited. The bundling scheme configured for the mobile device may be based, in part, on one or more transmission modes of the downlink CCs. Bundling schemes may include combinations of bundling techniques and an order in which these techniques are applied. In particular, the bundling techniques may include CC bundling in combination with spatial bundling and/or feedback repetition. For efficiency and performance, a bundling scheme may require application of CC bundling before resorting to use of feedback repetition.

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Номер записи: 34
16-02-2012 дата публикации

Ack/nack transmission for multi-carrier operation

Номер: US20120039279A1
Автор: Aleksandar Damnjanovic, Jelena M. Damnjanovic, Juan Montojo, Peter Gaal, Tao Luo, Wanshi Chen, Xiaoxia Zhang, Xiliang Luo
Принадлежит: Qualcomm Inc

Techniques for acknowledging data transmissions in a multi-carrier wireless communication network are disclosed. In some aspects, a user equipment (UE) receives a data transmission on at least one component carrier (CC) in a plurality of configured CCs. The UE determines acknowledgement/negative acknowledgement (ACK/NACK) information for the data transmission and determines an uplink channel for sending the ACK/NACK information. When the ACK/NACK information is sent on a PUCCH, the UE may perform power control based on which CCs in the plurality of configured CCs data is received. When the ACK/NACK information is sent on a PUSCH, the UE may determine a number of resource elements based on its CC configuration.

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Номер записи: 35
16-02-2012 дата публикации

Ack/nack transmission for multi-carrier operation with downlink assignment index

Номер: US20120039280A1
Автор: Aleksandar Damnjanovic, Jelena M. Damnjanovic, Juan Montojo, Peter Gaal, Tao Luo, Wanshi Chen, Xiaoxia Zhang, Xiliang Luo
Принадлежит: Qualcomm Inc

Techniques for acknowledging data transmissions in a multi-carrier wireless communication network are disclosed. In one aspect, a UE determines a number of acknowledgement/negative acknowledgement (ACK/NACK) bits for a data transmission on one more component carriers (CCs) based on information obtained from a grant. The grant may be a downlink grant or an uplink grant, and the information obtained may include a number of CCs scheduled for data transmission and/or identifiers of the scheduled CCs. The UE may determine the number of ACK/NACK bits for acknowledging the data transmission based on the number of scheduled CCs and the identifier of each scheduled CC.

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Номер записи: 36
16-02-2012 дата публикации

Method and apparatus for transmitting and receiving reference signal in wireless communication system

Номер: US20120039282A1
Автор: Jin-Kyu Han, Sung Tae Kim, Youn Sun Kim
Принадлежит: SAMSUNG ELECTRONICS CO LTD

Methods and apparatus are provided for transmitting processing reference signals in a mobile communication system. A base station determines a reference signal pattern comprising at least one resource element, generates a bitmap indicator indicating whether zero transmission power is assigned to the at least one resource element of the reference signal pattern, and transmits the reference signal pattern and the bitmap indicator to a terminal. The terminal receives the reference signal pattern and the bitmap indicator, and processes a reference signal extracted according to the reference signal pattern and the bitmap indicator.

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Номер записи: 37
16-02-2012 дата публикации

Method and apparatus for configuring power headroom information in mobile communication system supporting carrier aggregation

Номер: US20120040707A1
Автор: Gert-Jan Van Lieshout, Kyeong In Jeong, Sang Bum Kim, Soeng Hun Kim
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A method and apparatus for configuring Power Headroom Report (PHR) of a User Equipment (UE) efficiently in a mobile communication system supporting carrier aggregation are provided. The method includes generating a header including a LCID for identifying extended PHR and L indicating a length of the extended PHR, and inserting Power Headrooms (PHs) of multiple activated carriers into the extended PHR of one of the carriers.

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Номер записи: 38
23-02-2012 дата публикации

Proximity agent based out of band communication for femtocell operation

Номер: US20120046025A1
Автор: Nishith Chaubey, Samir S. Soliman, Soumya Das
Принадлежит: Qualcomm Inc

Out of band (OOB) communication facilitates femtocell operation. One or more proximity agent provides out of band communication with nodes (e.g., mobile client devices) to provide assistance in or otherwise facilitate femtocell discovery, reselection, and/or interference mitigation. Out of band communication techniques provide for low power discovery, association, and communication as compared to corresponding femtocell or cellular network communication techniques. An OOB proximity agent is provided in association with a femtocell to provide transmit power level control with respect to the femtocell. In operation, if a client device searches for and finds an OOB proximity agent, it will find a femtocell, thereby avoiding a need to aggressively search for femtocells.

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Номер записи: 39
23-02-2012 дата публикации

Apparatus and method for controlling inter-cell interference between femtocells and macrocells

Номер: US20120046028A1
Автор: Aleksandar Damnjanovic, Madhavan S. Vajapeyam
Принадлежит: Qualcomm Inc

An apparatus and method for controlling inter-cell interference comprising detecting and measuring uplink interference; and reporting the level of the uplink interference to an inter cell interference coordination (ICIC) server using a backhaul link. In one example, it may include receiving a measured uplink interference level through a first backhaul link; determining a transmit power level based on the measured uplink interference level; and sending through a second backhaul link the transmit power level for reconfiguring either a user equipment or a femtocell eNodeB. From the downlink perspective, it includes measuring a downlink interference; and reporting the level of the downlink interference to an ICIC server using a backhaul link. In one example, it may include receiving a measured downlink interference through a first backhaul link; determining a transmit power level based on the measured downlink interference; and sending a message comprising the transmit power level to a femtocell eNodeB using a second backhaul link.

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Номер записи: 40
01-03-2012 дата публикации

Mobile communication device and communicative transmission method

Номер: US20120051276A1
Автор: Hsin-Ti Chueh, Ming-Han Tsai
Принадлежит: HTC Corp

The invention discloses a mobile communication device and a communicative transmission method thereof. The mobile communication device includes a communication module and a control unit. The communication module is used for communicatively connecting to a communication server. The control unit is coupled to the communication module. The control unit utilizes the communication module to receive a one-to-one packet from the communication server according to a first period, and ignore a one-to-many packet on the communication server. The control unit utilizes the communication module to transmit a second one-to-many packet to the communication server according to a second period.

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Номер записи: 41
01-03-2012 дата публикации

Method and apparatus for state/mode transitioning

Номер: US20120051289A1
Автор: Johanna Lisa Dwyer, Paul Marcus Carpenter
Принадлежит: Research in Motion Ltd

A user equipment implements a method of processing indication messages, such as SCRI (signaling connection release indication) messages. For at least one RRC (radio resource control) state, if the current RRC state of the UE is a result of a previously sent indication, the UE inhibits itself from sending a further indication message.

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Номер записи: 42
01-03-2012 дата публикации

DC Power Control for Power Amplifiers

Номер: US20120052823A1
Автор: Andreas Langer
Принадлежит: INFINEON TECHNOLOGIES AG

Some embodiments of the present disclosure relate to transmission techniques that result in power savings relative to previous solutions. These techniques often transmit a signal-of-interest by using two paths, namely, a transmission path (which includes a power amplifier) and a control path. The signal-of-interest is evaluated in “fast-track” fashion on the control path, such that the control path can “tune” a DC supply signal provided to the power amplifier. Thus, when a delayed version of the signal-of-interest is provided over the transmission path to the power amplifier, the DC supply signal provided to the power amplifier helps ensure that the power amplifier has “just enough” DC supply to ensure reliable operation without dissipating excess power. In this way, the techniques disclosed herein help to reduce power consumption in transmitters, thereby potentially helping to extend battery life and reduce undesired heating for users.

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Номер записи: 43
01-03-2012 дата публикации

Method of Power Control

Номер: US20120052902A1
Автор: Fredrik Gunnarsson, Mats Blomgren, Zhang Zhang
Принадлежит: Telefonaktiebolaget LM Ericsson AB

In a cellular radio system the power control status of a mobile station is used in the base stations to generate power control commands. Hereby a radio base station can select a power control method that is optimal for the situation at hand. This is obtained by communicating power control status to base stations or deriving power control status in a radio base station. The radio base station is adapted to select power control method based on the power control status. Thus, a base station can select the most suitable power control improvement method, even during soft handover, thereby making make use of the advantages of different types of power control improvement methods.

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Номер записи: 44
08-03-2012 дата публикации

Sleep mode selection employing a semi-markov decision process

Номер: US20120057513A1
Автор: Danny Hin Kwok Tsang, Ka Wai Wong, Lei KONG
Принадлежит: Hong Kong University of Science and Technology HKUST

The disclosed subject matter relates to energy efficiency in mobile devices associated with a wireless communications environment. Power Saving Classes (PSCs) aim to reduce the power consumption of mobile devices based on the different types of traffic. Optimizing sleep mode selection schemes so as to maximize the energy efficiency while providing a QoS guarantee can be accomplished with optimization of a theoretical framework based on the semi-Markov Decision Process along with a performance evaluation on the sleep mode operation. A novel Policy Optimization algorithm is capable of finding optimized policies for a selection of different PSCs.

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Номер записи: 45
08-03-2012 дата публикации

Logical channel prioritization procedure for generating multiple uplink transport blocks

Номер: US20120057547A1
Автор: Joachim Löhr, Martin Feuersänger, Takahisa Aoyama
Принадлежит: Panasonic Corp

The invention relates to methods for scheduling of uplink transmission and generating transport blocks according to multiple received uplink assignments Furthermore, the invention is also related to the implementation of these methods in hardware and software. To propose strategies for generating plural transport blocks within a given time constraint, the invention introduces prioritization of the uplink assignments, so that multiple uplink assignments can be ranked in the mobile terminal in a priority order. The prioritization of the uplink assignments is used to determine the order in which the individual transport blocks corresponding to the uplink assignments are filled, respectively how the data of different logical channels is multiplexed to the transport blocks for transmission in the uplink. Another aspect of the invention is to suggest joint logical channel procedures that operate on virtual transport blocks accumulated from the received uplink assignments. One or more such joint logical channel procedure can be performed in parallel.

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Номер записи: 46
15-03-2012 дата публикации

Controller and method for using a dc-dc converter in a mobile handset

Номер: US20120064953A1
Автор: Dmitriy Rozenblit, Elias Dagher, Kevin Juan, Man H. Ku
Принадлежит: Skyworks Solutions Inc

A controller enables the integration of a DC-DC converter in an amplitude modulation power control loop in a mobile handset. The controller includes an input conditioner and an event sensor. The input conditioner uses a peak detector to track the output of a regulator and responds to available baseband input signals. The event sensor controls a switch that connects the DC-DC converter to a battery in response to a bypass event. The controller bypasses the DC-DC-converter when a transmitter is not enabled. The DC-DC converter is enabled prior to a transmission burst. A target voltage is determined from a series of detected peak voltages from the output of the regulator. The controller commands the DC-DC converter to transition to the target voltage until the end of a transmission burst.

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Номер записи: 47
22-03-2012 дата публикации

Method and Apparatus Providing Signal Metric for Transmitter

Номер: US20120069885A1
Автор: Pei-Shiun Chung, Qian-Zhi Huang
Принадлежит: MediaTek Inc

The present invention provides a method and associated apparatus providing a signal metric for a transmitter of a communication system. While the transmitter transmitting a signal with amplitudes scaled by scaling combinations selected from a plurality of scaling combination alternatives, the method including: providing a plurality of power terms, each power term corresponding to one of the scaling combination alternatives; and calculating the signal metric according to the plurality of power terms.

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Номер записи: 48
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: 49
12-04-2012 дата публикации

Method and apparatus for determining maximum transmission power per carrier in mobile communication system supporting carrier aggregation

Номер: US20120087306A1
Автор: Gert-Jan Van Lieshout, Kyeong In Jeong, Sang Bum Kim, Soeng Hun Kim
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A method and apparatus for determining a maximum transmission power per carrier in a mobile communication system supporting carrier aggregation are provided. The method for determining the maximum transmission power of a terminal in a mobile communication system supporting carrier aggregation includes checking whether a data channel transmission occurs on each of a plurality of carriers of which Power Headrooms (PHs) are reported in an extended PH Report (PHR), and determining the maximum transmission power of each carrier of the plurality of carriers in consideration of whether the data channel transmission occurs on a carrier corresponding to the data channel transmission.

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Номер записи: 50
19-04-2012 дата публикации

Method and apparatus for data transmission based on distributed discrete power control in cooperative multi-user multi-input multi-output system

Номер: US20120093250A1
Автор: Byoung-Hoon Kim, Dong-Uk Lee, Jaewon Chang, Jaewon Kim, Jun-Ho Jo, Ki Jun Kim, Wonjin Sung
Принадлежит: Industry University Cooperation Foundation of Sogang University, LG ELECTRONICS INC

Disclosed are a method and apparatus capable of enhancing a closed loop multi-input multi-output (MIMO) capacity through distributed discrete power control in the case of cooperatively transmitting information to multiple users through a downlink.

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Номер записи: 51
19-04-2012 дата публикации

Independent power consumption management in a mimo transceiver and method for use therewith

Номер: US20120094611A1
Автор: Ahmadreza (Reza) Rofougaran
Принадлежит: Broadcom Corp

An integrated circuit (IC) includes a multi-input multi-output transceiver system that includes a plurality of RF transceivers. Each RF transceiver includes an RF transmitter that transmits a transmit signal at a selected transmit power, based on a transmit power control signal and a corresponding RF receiver for receiving a corresponding one of a plurality of received signals from an external device and for generating a signal strength indication corresponding to each of the plurality of received signals. A processing module generates the transmit power control signal for each RF transmitter based on the signal strength indication of the corresponding RF receiver, and that generates a power mode signal for adjusting a power consumption parameter of each RF transmitter in accordance with the selected transmit power for each RF transmitter.

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Номер записи: 52
26-04-2012 дата публикации

Apparatus and method for updating slpid of a terminal operating in sleep mode in a broadband wireless communication system

Номер: US20120099500A1
Автор: Giwon Park, Kiseon Ryu, Youngsoo Yuk
Принадлежит: LG ELECTRONICS INC

The present disclosure relates to an operation method of a base station for supporting a sleep mode in a broadband mobile communication system, and the method may include transmitting a sleep response message containing sleep identification information to the terminal during a sleep mode entry process; transmitting a traffic indication message containing updated sleep identification information to the terminal during a listening window when the sleep identification information is updated; receiving a traffic indication request message from the terminal subsequent to the listening window; and transmitting a traffic indication response message containing the updated sleep identification information to the terminal.

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Номер записи: 53
03-05-2012 дата публикации

Generation of harq-ack information and power control of harq-ack signals in tdd systems with downlink of carrier aggregation

Номер: US20120106407A1
Автор: Aris Papasakellariou, Joon-Young Cho
Принадлежит: SAMSUNG ELECTRONICS CO LTD

Methods and apparatus are provided for a User Equipment (UE) configured to have multiple cells in a DownLink (DL) of a Time Division Duplex (TDD) communication system so as to determine a power of an acknowledgement signal that the UE transmits in a control channel and to determine a number of acknowledgement information bits that the UE multiplexes with data information bits in a data channel. A transmission power of the control signal is determined based on DL Assignment Index (DAI) Information Elements (IEs) in DL Scheduling Assignments (SAs) that the UE detects through multiple transmission time intervals and through the multiple configured DL cells. The number of acknowledgement information bits in the data channel is determined based on a DAI IE of an UpLink (UL) SA associated with the transmission of the data channel.

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Номер записи: 54
03-05-2012 дата публикации

Client' device power reduction in wireless networks having network-computed client' location

Номер: US20120106418A1
Автор: Ariton E. Xhafa, Deric Wayne Waters, Ramanuja Vedantham
Принадлежит: Texas Instruments Inc

A method of reducing client power consumption in a wireless network including a network server which provides computed client' locations, at least one access point (AP), and a plurality of wireless stations (STAs) including a first wireless station (STA1). The AP periodically sends beacon frames that span a beacon period, wherein at least a first beacon frame is sent during the beacon period. The STA1 sends a location request frame to the AP requesting a STA1 location. During the beacon period the STA1 wakes up from a powersave (PS) mode or a sleep mode and sends a PSPoll frame to the AP. Responsive to the PSPoll frame, the AP replies with a priority response being a data frame including a location response packet including the STA1 location or a Null frame if the STA1 location is not available.

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Номер записи: 55
03-05-2012 дата публикации

Uplink Power Control for Dual and Multi Carrier Radio System

Номер: US20120106422A1
Автор: Johan Bergman, Johan Hultell
Принадлежит: Telefonaktiebolaget LM Ericsson AB

In a method and a device a time-varying back-off value is used whereby differences in cell load can be taken into account for a restricted time-period during which the information is believed to be valid. Also, other time-varying variables of interest for the initial DPCCH power setting of the secondary earner can be taken into account when setting the back-off value.

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Номер записи: 56
03-05-2012 дата публикации

Method and apparatus for transmitting control information in radio communication system

Номер: US20120106478A1
Автор: Hyunwoo Lee, Jinmin Kim, SEUNGHEE HAN
Принадлежит: LG ELECTRONICS INC

A method for transmitting control information using PUCCH format 3 in a radio communication system includes detecting one or more Physical Downlink Control Channels (PDCCHs), receiving one or more Physical Downlink Shared Channel (PDSCH) signals corresponding to the one or more PDCCHs, and determining a PUCCH resource value n PUCCH (3,p) corresponding to a value of a transmit power control (TPC) field of a PDCCH for a PDSCH signal on a secondary cell (SCell) among a plurality of PUCCH resource values configured by a higher layer for the PUCCH format 3. If a single antenna port transmission mode is configured, the PUCCH resource value n PUCCH (3,p) indicated by the TPC field is mapped to one PUCCH resource for a single antenna port, and, if a multi-antenna port transmission mode is configured, the PUCCH resource value n PUCCH (3,p) indicated by the TPC field is mapped to a plurality of PUCCH resources for multiple antenna ports.

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Номер записи: 57
03-05-2012 дата публикации

Wireless lan system, communication device and method of sharing setting information

Номер: US20120106527A1
Автор: Goki ICHIKAWA, Kota Sato
Принадлежит: BUFFALO INC

A communication device configured to enable a setting process, performed with another communication device, for sharing setting information including information for settings of wireless communication to another communication device. The communication device includes a wireless LAN interface, a first wired connector, and an execution module that controls wireless communication with the another communication device and performs the first communication device's operation of the setting process when a second wired connector of the another communication device is connected to the first wired connector.

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Номер записи: 58
03-05-2012 дата публикации

Method and apparatus for indicating destination stations in wlan system supporting multi-user multiple input multiple output

Номер: US20120106531A1
Автор: Byeong Woo Kang, Dae Won Lee, Yong Ho Seok, Yu Jin Noh
Принадлежит: LG ELECTRONICS INC

A method of indicating destination stations, performed by an access point (AP), in a wireless local area network (WLAN) system supporting multi-user multiple input multiple output (MU-MIMO) is provided. The method includes transmitting a sounding request frame to the plurality of destination stations to transmit a sounding frame used for channel estimation between the AP and each destination station, receiving the sounding frame in response to the sounding frame request from each station, and transmitting a first data frame spatially multiplexed with respect to the plurality of destination stations by performing channel estimation on the basis of the sounding frame, wherein the sounding request frame comprises a group identifier (ID) indicating the plurality of destination stations.

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Номер записи: 59
03-05-2012 дата публикации

Methods and apparatus for wireless microphone synchronization

Номер: US20120106751A1
Автор: Frank A. Lane, Junyi Li, Mathew Scott Corson, Thomas J. Richardson
Принадлежит: Qualcomm Inc

Methods and apparatus related to timing synchronization used in a wireless microphone system to reduce and/or minimize interference are described. A wireless microphone receiver in some embodiments performs open loop timing control based on signals from an adjacent wireless microphone receiver and participates in closed loop timing control of wireless microphone transmitters which communicate with the particular wireless microphone receiver. The closed loop timing control includes instructing individual wireless microphone transmitters to advance or retard their symbol timing so that symbols transmitted by different wireless microphone transmitters are received in a synchronized manner at the wireless microphone receiver. The closed loop timing control allows a wireless microphone receiver to control wireless microphone transmitters to take into consideration their different distances to the receiver and the differing transmission times associated with the wireless microphone transmitters at different locations.

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Номер записи: 60
03-05-2012 дата публикации

Controlling Power Consumption In A Radio Tuner

Номер: US20120108191A1
Автор: Matthew Henson
Принадлежит: Silicon Laboratories Inc

According to one aspect of the present invention, a controller is coupled to at least first and second signal processors (at least one of which includes analog demodulation circuitry and another of which includes digital demodulation circuitry). The controller may operate to disable the first signal processor responsive to a control signal that indicates that a second signal (corresponding to a demodulator output) is available from the second signal processor.

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Номер записи: 61
10-05-2012 дата публикации

Method And System For Mobility Management Of A Terminal On A Radio Relay System

Номер: US20120113887A1
Автор: Lifeng Han, Rui Ma, Xiaoqin Shen
Принадлежит: ZTE Corp

A method and system for mobility management of a User Equipment (UE) in a radio relay system is used for resolving the technical problem of performing a UE handover between different relay stations belonging to a same Donor eNodeB (DeNB). The method comprises that: an X2 interface link is established between the relay stations belonging to one DeNB; a source relay station transmits a handover request to a target relay station, and the target relay station performs admission control; when the target relay station permits the UE to access, the source relay station performs forwarding of UE context and cached data; after the UE has successfully accessed the target relay station, the target relay station notifies the DeNB that the path has changed, and the DeNB performs a path handover. In the handover flow of the disclosure, only some control for forwarding data is needed between the source relay station and the target relay station, the forwarding through the DeNB and the processing with a Mobility Management Unit (MME) or a Serving GateWay (GW) are not needed, therefore the handover flow is simplified, and handover delay is decreased to a certain extent.

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Номер записи: 62
10-05-2012 дата публикации

Method of Power Reporting and Communication Device Thereof

Номер: US20120113915A1
Автор: Chun-Chia Chen, Chun-Yen Wang
Принадлежит: Acer Inc

A method of power reporting for a mobile device configured with a plurality of uplink component carriers and/or parallel PUCCH and PUSCH transmission in a wireless communication system is disclosed. The method comprises being configured a maximum output power for at least a uplink component carrier, determining to start or stop a maximum output power reporting for the at least a uplink component carrier according to a characteristic associated to the mobile device or a network of the wireless communication system, and reporting the maximum output power for the at least a uplink component carrier to the network when the maximum output power reporting is triggered and the maximum output power reporting is started.

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Номер записи: 63
10-05-2012 дата публикации

Method of Handling Power Headroom Reporting for Activated Serving Cell with Configured Uplink

Номер: US20120113919A1
Автор: Mamadou Kone
Принадлежит: HTC Corp

A method of handling power headroom reporting for activated serving cell with configured uplink, for a communication device in a wireless communication system is disclosed. The method comprises triggering a power headroom report for each activated serving cell with configured uplink when an activated serving with configured uplink is deactivated or removed.

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Номер записи: 64
10-05-2012 дата публикации

Methods for integrating cell measurement procedures of a communication apparatus and communication apparatuses utilizing the same

Номер: US20120115486A1
Автор: Li-Chi Huang, Ming-Wan Hsu
Принадлежит: MediaTek Inc

A communication apparatus has at least one radio transceiver module, a first subscriber identity card and a second subscriber identity card, where the first subscriber identity card corresponds to a first public land mobile network (PLMN), and the second subscriber identity card corresponds to a second PLMN. The communication apparatus includes processor logic determining whether the first PLMN and the second PLMN are the same, and for suspending a measurement procedure and a cell reselection procedure of one of the first subscriber identity card and the second subscriber identity card to reduce battery power consumption. Processor logic further triggers an unsuspended measurement procedure to tune the radio transceiver module to a plurality of corresponding channel frequency/frequencies of the neighbor cells.

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Номер записи: 65
17-05-2012 дата публикации

Method and UE for setting a Happy bit on an uplink E-DPCCH

Номер: US20120120886A1
Автор: Meifang He, Xiang Cheng, Yu Zhang
Принадлежит: ZTE Corp

A method and UE for setting a Happy bit on an uplink enhanced dedicated control channel are provided. The method includes: a UE transmits an uplink Enhanced Dedicated Channel (E-DCH) on more than one carrier, when criterion 1 and criterion 2 are met, the UE sets the Happy bit which is to be transmitted to a network side as “UNHAPPY” to indicate that the UE doesn't satisfy with the current serving grant. The disclosure optimizes the processing process of power control and resource scheduling, reduces call-drop rate, so that the performances of the UE and the NodeB are optimized.

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Номер записи: 66
17-05-2012 дата публикации

System and method for selectively activating a communication device

Номер: US20120122527A1
Автор: Steven Fyke
Принадлежит: Research in Motion Ltd

The disclosure provides a system and method for managing power and activation of a communication device. The system comprises: a microprocessor controlling the electronic device; an accelerometer; and a power application operating on the microprocessor. The application provides instructions to the microprocessor to place the electronic device in a low power state from a higher power state upon determining from movement data generated by the accelerometer that the electronic device has been returned to around a resting location where the electronic device was previously in a stationary state from a first location that is in a spaced relationship to the resting location.

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Номер записи: 67
24-05-2012 дата публикации

Method and apparatus for estimating a signal-to-interference ratio

Номер: US20120127884A1
Автор: Gregory S. Sternberg, Kiran K. Vanganuru, William E. Lawton
Принадлежит: InterDigital Technology Corp

A method and apparatus for estimating a signal-to-interference ratio (SIR) are disclosed. A received signal includes signal energy on multiple basis functions. Desired signal energy in the received signal is transformed onto a first basis function with constant polarity. The desired signal energy is estimated by coherently averaging signal energy on the first basis function. A noise power is estimated by averaging signal energy on each basis function other than the first basis function and accumulating the averaged signal energy from the basis function other than the first basis function and scaling the accumulated signal energy to account for a noise estimate from the first basis function. An SIR is estimated by dividing the desired signal energy by the noise power.

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Номер записи: 68
24-05-2012 дата публикации

Radio base station apparatus, mobile terminal apparatus and transmission power control method

Номер: US20120127911A1
Автор: Daisuke Nishikawa, Yoshihisa Kishiyama
Принадлежит: NTT DOCOMO INC

To provide a radio base station apparatus, mobile terminal apparatus and transmission power control method for enabling conventional inter-cell interference reduction techniques and ULCoMP to be used together, a radio base station apparatus of the invention is characterized by having a ULCoMP processing section ( 2085 ) that applies ULCoMP to a mobile terminal ( 100 1 ) when a difference (PL 2 −PL 1 ) between a pass loss PL 1 between the mobile terminal ( 100 1 ) and a base station apparatus ( 200 1 ) connected to the mobile terminal ( 100 1 ) and a pass loss PL 2 between the mobile terminal ( 100 1 ) and a base station apparatus ( 200 2 ) with the lowest pass loss for the mobile terminal ( 100 1 ) is within a predetermined range, and a transmission power control section ( 2089 ) that performs transmission power control for application of ULCoMP when the ULCoMP is applied, while performing transmission power control for non-application of the ULCoMP when the ULCoMP is not applied.

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Номер записи: 69
24-05-2012 дата публикации

Methods Of Setting Maximum Output Power For User Equipment And Reporting Power Headroom, And The User Equipment

Номер: US20120127933A1
Автор: Chandrika Worrall, Fang-Chen Cheng, Matthew Baker, Patrick Charriere
Принадлежит: Alcatel Lucent Telecom Ltd, Alcatel Lucent USA Inc

One embodiment of the method includes defining, at the user equipment, a range for the maximum output power. The range includes a maximum value and a minimum value. The minimum value is based on a maximum power signalled by a base station, a power class of the user equipment, a maximum power reduction permitted, an additional maximum power reduction permitted, a reduction term dependent on transmission bandwidth, and a power management term. The method further includes setting, at the user equipment, the maximum output power within the defined range.

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Номер записи: 70
24-05-2012 дата публикации

Method and apparatus for time efficient retransmission using symbol accumulation

Номер: US20120131406A1
Автор: Edward G. Tiedemann, Jr., Joseph P. Odenwalder, Serge Willenegger, Tao Chen
Принадлежит: Qualcomm Inc

A method for communicating data is provided. In the method, an encoder receives an input bit stream. The encoder generates, based on the input bit stream, a first output bit stream based on at least a first polynomial and a second output bit stream based on at least a second polynomial. The first and second polynomials are each different from each other. The encoder forms a first packet of code symbols, having a first code rate, based on bits from the first output bit stream. A transmitter transmits the first packet. A receiver receives a first negative acknowledgment indicating unsuccessful decoding of the first packet after said transmitting of the first packet. The encoder punctures bits from the second output bit stream and forms a second packet of code symbols having a second code rate. The second code rate is different from the first code rate. The transmitter transmits the second packet in response to the receiver receiving the first negative acknowledgment.

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Номер записи: 71
31-05-2012 дата публикации

Apparatus and method for synchronization between scanning interval and multicast interval in broadband wireless access system

Номер: US20120134312A1
Автор: Gyou-Hwan Kim, Han-Seok Kim, Jun-Hwan Oh, Mi-Ae Wi, Sung-kwan Kim
Принадлежит: SAMSUNG ELECTRONICS CO LTD

Scanning cycle synchronization of a multicast service in a broadband wireless access system is provided. Multicast group information of a multicast group to which a Mobile Station (MS) belongs is received at the MS from an application server. A scanning cycle pattern and a scan offset of a multicast service corresponding to the multicast group are determined. A scanning cycle of the multicast is set according to the scanning cycle pattern and the scan offset. Scanning and reception of multicast data are performed according to the scanning cycle.

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Номер записи: 72
31-05-2012 дата публикации

Establishing additional reverse link carriers in multi-carrier wireless systems

Номер: US20120134330A1
Автор: Li-Hsiang Sun, Suk Woo Lee, Young C. Yoon
Принадлежит: LG ELECTRONICS INC

A method and apparatus for reliably and quickly establishing multiple reverse links in multi-carrier wireless networks is provided. Signaling channels are established the on an existing forward link in order to transmit reverse link power control bits and the acknowledgment indications.

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Номер записи: 73
31-05-2012 дата публикации

Radio transmission control method, radio receiver apparatus, and radio transmitter apparatus

Номер: US20120134437A1
Автор: Akinori Taira, Kenji Suto, Tomoaki Otsuki, Yoshitaka Hara
Принадлежит: Mitsubishi Electric Corp

Conventionally, if the number of transmission antennas is greater than that of reception antennas, different signals simultaneously transmitted from the transmission antennas cannot be separated from one another at the receiving end, resulting in a significant degradation of received-signal quality. A transmitter and a receiver each have a plurality of antennas. The transmitter transmits a pilot signal. The receiver receives the pilot signal, calculates transmission-related information corresponding to the pilot signal, selects, based on this calculated information, a transmission signal to be used by the transmitter, and notifies the transmitter of the selected signal. The transmitter selects, from the informed transmission signal, transmission antennas and uses the selected antennas to transmit information signals, so that a signal separation can be easily performed at the receiving end.

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Номер записи: 74
31-05-2012 дата публикации

Air interface synchronization method, apparatus and system

Номер: US20120134455A1
Автор: Chunfeng Cui, Guangyi Liu, Jing Wang
Принадлежит: China Mobile Communications Group Co Ltd

An air interface synchronization method is provided. The method includes that: a home-eNodeB which is not synchronized with an eNodeB, intercepts a synchronization subframe transmitted from the eNodeB and/or the home-eNodeB which was already synchronized with the eNodeB, a synchronization reference base station is selected from the base station which transmits the intercepted synchronization subframe, wherein the synchronization subframe includes a special synchronization channel for broadcasting synchronization sequence; the synchronization sequence is obtained, which is broadcasted in the special synchronization channel of the synchronization subframe transmitted by the synchronization reference station, and the synchronization with the synchronization base station is performed according to the synchronization sequence. Also, an air interface synchronization system, an eNodeB and a home-eNodeB are provided. The problem in prior art that the source is wasted in the process of synchronization is solved according to the method, the system, the eNodeB and the home-eNodeB.

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Номер записи: 75
31-05-2012 дата публикации

Transmit opportunity detection

Номер: US20120135779A1
Автор: Ahmed H. Tewfik, Nikhil Kundargi
Принадлежит: University of Minnesota

The present application discusses, among other things, apparatus and methods for detecting and using a excess capacity on a wireless network medium. A method embodiment includes calculating a differential metric based on a first metric and a second metric for a primary network. The primary network can have a medium shared with a secondary network. The first metric can be based on a first distribution of traffic on the primary network and can correspond to absence of a perturbation of the medium. The second metric can be based on a second distribution of traffic on the primary network and can correspond to a perturbation of the medium from a node of the secondary network. The method can include selecting a transmission power for the node based on the differential metric.

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Номер записи: 76
07-06-2012 дата публикации

Method and apparatus for antenna diversity in multi-input multi-output communication systems

Номер: US20120140798A1
Автор: Aamod Khandekar, Alexei Gorokhov, Dhananjay Ashok Gore, Tamer Kadous
Принадлежит: Qualcomm Inc

Transmission schemes that can flexibly achieve the desired spatial multiplexing order, spatial diversity order, and channel estimation overhead order are described. For data transmission, the assigned subcarriers and spatial multiplexing order (M) for a receiver are determined, where M≧1. For each assigned subcarrier, M virtual antennas are selected from among V virtual antennas formed with V columns of an orthonormal matrix, where V≧M. V may be selected to achieve the desired spatial diversity order and channel estimation overhead order. Output symbols are mapped to the M virtual antennas selected for each assigned subcarrier by applying the orthonormal matrix. Pilot symbols are also mapped to the V virtual antennas. The mapped symbols are provided for transmission from T transmit antennas, where T≧V. Transmission symbols are generated for the mapped symbols, e.g., based on OFDM or SC-FDMA. Different cyclic delays may be applied for the T transmit antennas to improve diversity.

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Номер записи: 77
07-06-2012 дата публикации

Interference control method, macro terminal, macro base station, and femtocell base station

Номер: US20120142339A1
Автор: Jinsong Duan
Принадлежит: Panasonic Corp

Provided is an interference control method that, in the case where a macro terminal does not exist close to the femtocell terminal, improves the coverage performance and bit rate of femtocell terminals, and also prevent deterioration in the performance of femtocell base stations, femtocell terminals, or macro terminals. In this method, the macro terminals ( 102, 103 ) will transmit, when the difference value between the RSRQs of the femtocell base stations ( 104 ) and the RSRQ of a macro base station ( 101 ) is greater than a prescribed threshold value, a request to start an interference control, the difference value, and identification information of the femtocell base station ( 104 ), to the macro base station ( 101 ). The macro base station ( 101 ) will transmit, on the basis of the request, the difference value, and identification information, an interference-control start-up request signaling to the femtocell base station ( 104 ) specified by the identification information. The femtocell base station ( 104 ) will conduct interference control, on the basis of the interference-control start-up request signaling, to femtocell terminals ( 105 ) registered with the femtocell base station ( 104 ).

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Номер записи: 78
14-06-2012 дата публикации

Power Control Loop Stability Monitoring

Номер: US20120147765A1
Автор: Karl Torbjörn WIGREN
Принадлежит: Telefonaktiebolaget LM Ericsson AB

New load measures are provided for a base station in a wireless communication network using interference suppression receivers. The new load measures are based on the estimation of neighbor cell interference and reflect the load after interference suppression. The improved load measures are used to monitor the stability of the uplink power control loops of the user terminals served by the base station.

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Номер записи: 79
14-06-2012 дата публикации

Portable radio-frequency repeater

Номер: US20120149300A1
Автор: Ian J. Forster
Принадлежит: Avery Dennison Corp

A portable radio-frequency repeater includes a housing and a transceiver. The transceiver is disposed at least partially within the housing and configured to alternatively operate in a transmitting mode and a sleep mode. The transceiver includes an antenna and a control unit. The control unit is in electrical communication with the antenna. When the transceiver operates in the transmitting mode, the control unit is configured to receive an RFID signal from the antenna, convert the RFID signal into a converted RFID signal, and transmit the converted RFID signal to the antenna. When the transceiver operates in the sleep mode, the control unit is configured to detect an interrogation signal from the antenna and not to transmit any converted RFID signal to the antenna.

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Номер записи: 80
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: 81
14-06-2012 дата публикации

System and Method for Interference Control in Simultaneous Transmission Systems

Номер: US20120149412A1
Автор: Aydin Nergis, Ping SHI
Принадлежит: FutureWei Technologies Inc

A wireless apparatus comprising a first and second transmitter, a first and second receiver, and a control unit configured to monitor the first and second receivers and the first and second transmitters for dynamically determined information, wherein the control unit is further configured to select/reselect system, handover and adjust a constraint on a maximum allowable power level for each of the first and the second transmitters based at least in part on the dynamically determined information and at least in part on static information to control interference generation.

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Номер записи: 82
21-06-2012 дата публикации

Rach procedures and power level for mtc devices

Номер: US20120155310A1
Автор: David Phillip Hole, Werner Kreuzer
Принадлежит: Research in Motion Deutschland GmbH, Research in Motion Ltd, Research in Motion UK Ltd

The present document relates to a wireless device in a digital cellular telecommunications network. For example, the present document relates to the request of an access channel from a wireless device to a base station of the digital cellular telecommunications network. Example methods for controlling one or more transmissions between a wireless device and a base station are described. The one or more transmissions include at least an initial transmission. One example method comprises determining the quality of a radio uplink between the wireless device and the base station, the quality being based on at least one parameter associated with a previous transmission; setting a control parameter for controlling the transmission between the wireless device and the base station based on the determined quality of the radio uplink; and transmitting the initial transmission.

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Номер записи: 83
21-06-2012 дата публикации

Apparatus and method for communicating user equipment specific information in cellular communication system

Номер: US20120155339A1
Автор: Nicholas William Anderson
Принадлежит: Sony Corp

A cellular communication system includes a base station and a plurality of user equipment (UE). The base station includes a combine processor which combines user equipment specific information, such as power control commands or synchronisation information, for a plurality of user equipment. An encode processor encodes the combined user equipment specific information and a transceiver transmits the combined user equipment specific information in a minimum transmission resource unit of the cellular communication system. The minimum transmission resource unit may be a single channelisation code in a single time slot.

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Номер записи: 84
21-06-2012 дата публикации

Method and apparatus for using a wireless device with multiple radios

Номер: US20120155381A1
Автор: Gustavo D. Leizerovich, Shahab M. Sayeedi, Wayne W. Ballantyne
Принадлежит: MOTOROLA MOBILITY LLC

A method and apparatus for operating a dual-modem wireless device is provided herein. During operation, a mobile unit is allowed to operate in both a single-radio and a dual-radio mode. The mobile unit is allowed to dynamically switch between a single-radio and a dual-radio mode depending on environmental parameters.

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Номер записи: 85
21-06-2012 дата публикации

Wireless communication system, wireless base station, control method, and control device

Номер: US20120156987A1
Автор: Eiji Nakayama
Принадлежит: Kyocera Corp

Each of the plurality of wireless base stations determines whether the accuracy of a synchronizing signal generated at a corresponding synchronizing signal generation unit is below a predetermined level, and when the accuracy of synchronizing signal is below the predetermined level, refers to the management unit to determine whether there is, among other wireless base stations arranged adjacent to its own station, a wireless base station connected to a synchronizing signal generation unit differing from its own connected synchronizing signal generation unit, and when there is a wireless base station connected to a synchronizing signal generation unit differing from its own connected synchronizing signal generation unit, reducing its own transmission power.

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Номер записи: 86
21-06-2012 дата публикации

System and Method For Reducing Power Consumed By A Wireless Communication Device

Номер: US20120157022A1
Автор: David Yach
Принадлежит: Research in Motion Ltd

A system and method are provided for facilitating reduced power consumption when communicating between a wireless communication device and a wireless communication controller. A power management controller comprising a power saving detection unit and a power level controller is provided. The power savings detector detects when power savings can be applied in accordance with whether or data loss between the base state controller and the wireless communication device can be tolerated. The power level controller selects a reduced transmission power level at which to transmit data if a data loss can be tolerated.

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Номер записи: 87
28-06-2012 дата публикации

Method for harq and link adaptation of device to device link in direct communication between user equipments and relaying by user equipment

Номер: US20120163252A1
Автор: Jae Young Ahn, Tae Gyun Noh, Young Jo Ko
Принадлежит: Electronics and Telecommunications Research Institute ETRI

Provided is a method of processing hybrid automatic repeat request (HARQ) and adaptive transmission of a device-to-device (D2D) link. In the method, an operation method of user equipment (UE) includes (a) receiving an initial transmission mode (TM) and transmission power for the D2D link from a base station, and performing data transmission through the D2D link, (b) determining, at the UE, a TM and transmission power of a succeeding subframe, or receiving a TM control value and a transmission power control value from counterpart UE of the D2D link and determining the TM and the transmission power of the succeeding subframe, and (c) performing the data transmission to the counterpart UE using the determined TM and transmission power. Here, (b) and (c) are repeated.

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Номер записи: 88
28-06-2012 дата публикации

Base station, terminal, and operating method thereof

Номер: US20120163263A1
Автор: Byoung Hak Kim, Cheol-Ho Shin, Mi Kyung Oh, Sangjae Lee, Sangsung Choi, Seung Sik LEE, Young Ae Jeon
Принадлежит: Electronics and Telecommunications Research Institute ETRI

A base station and a terminal for supporting a low power mode are provided. The base station transmits a first type of beacon signal for a terminal operating in a normal mode, a second type of beacon signal for a terminal operating in a low power mode, and a charging signal for a terminal in a low power mode. The terminal harvests energy from a charging signal and receives the second type of beacon signal using the harvested energy. The terminal confirms a communication request through the second type of beacon signal, enters into an active period, and communicates with the base station.

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Номер записи: 89
28-06-2012 дата публикации

Sequence generating method for efficient detection and method for transmitting and receiving signals using the same

Номер: US20120163348A1
Автор: Dong Cheol Kim, Hyun Woo Lee, Jin Sam Kwak, Min Seok Noh, Seung Hee Han, Yeong Hyeon Kwon
Принадлежит: LG ELECTRONICS INC

A sequence generation method for allowing a reception end to effectively detect a sequence used for a specific channel of an OFDM communication system, and a signal transmission/reception method using the same are disclosed. During the sequence generation, an index is selected from among the index set having the conjugate symmetry property between indexes, and a specific part corresponding to the frequency “0” is omitted from a transmitted signal. In addition, a reception end can calculate a cross-correlation value between a received (Rx) signal and each sequence using only one cross-correlation calculation based on the conjugate symmetry property.

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Номер записи: 90
28-06-2012 дата публикации

Repeater equipment

Номер: US20120164939A1
Автор: Kazuhiro Kumagai, Yasushi Ito
Принадлежит: NTT DOCOMO INC

A repeater equipment 10 according to the present invention includes a receiving unit 12 configured to receive broadcast information transmitted by the radio base station, and a control unit 13 configured to change a frequency band targeted for amplification of the radio signal, adaptively based on the broadcast information. Frequency range information contained in the broadcast information includes a combination of a center frequency and a bandwidth of each of one or more of frequency bands. The control unit 13 adaptively changes the frequency band targeted for amplification of the radio signal by amplifying a radio signal within a frequency band currently in use and decreasing an amplification gain for a radio signal within a frequency band currently not in use, based on the frequency range information.

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Номер записи: 91
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: 92
05-07-2012 дата публикации

Using a Subframe Time Offset when Scheduling Downlink Data Transmissions

Номер: US20120170498A1
Автор: Jacob ÖSTERLING, Roberth Gustavsson
Принадлежит: Telefonaktiebolaget LM Ericsson AB

The invention relates to a method in a radio base station for scheduling data transmissions to a user equipment in a first cell. The radio base station is comprised in a telecommunications network comprising at least the first cell and a second cell wherein the radio base station serves at least the first cell. A transmission time of the first cell is divided into a first radio frame comprising a first number of subframes synchronised to a clock. A transmission time of the second cell is divided into a second radio frame comprising an equal number of subframes of equal time length as the first radio frame. The second radio frame is being synchronised to the same clock as the first radio frame. The radio base station receives a first data transmission to be transmitted the user equipment in the first cell, schedules the first data transmission to a minimum of subframes of a first radio frame of the first cell, and transmits the first radio frame offset in time in relation to a second radio frame of the second cell for minimizing simultaneously data transmissions within the cells.

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Номер записи: 93
12-07-2012 дата публикации

Method and apparatus for controlling uplink transmission power in wireless communication system

Номер: US20120176915A1
Автор: Jae-Ho Jeon, Nam-Hoon Kim, Neung-Hyung Lee, Seung-Hyun Min, Seung-Joo Maeng, Sung-Soo Hwang
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A method for controlling uplink transmission power in a wireless communication system is provided. The method includes estimating a downlink path loss, determining a target Signal to Noise Ratio (SNR) depending on the downlink path loss, determining an amount of power to compensate for a difference between the target SNR and an estimated SNR, and transmitting a power control message including a Transmit Power Control (TPC) command value to a terminal based on the determined amount of power.

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Номер записи: 94
12-07-2012 дата публикации

Method and apparatus for sending feedback for multi-cell high speed downlink packet access operations

Номер: US20120176947A1
Автор: Fengjun Xi, Janet A. Stern-Berkowitz, Joseph S. Levy, Lujing Cai
Принадлежит: InterDigital Patent Holdings Inc

A method and apparatus for sending feedback for multi-cell high speed downlink packet access (HSDPA) operations are disclosed. A wireless transmit/receive unit (WTRU) may generate and send hybrid automatic repeat request acknowledgement (HARQ-ACK) messages and/or channel quality indication (CQI) or precoding control indication/channel quality indication (PCI/CQI) messages for a plurality of cells via a plurality of high speed dedicated physical control channels (HS-DPCCHs) with a spreading factor of 128. Each HARQ-ACK message may be mapped to two cells and each CQI or PCI/CQI message may be mapped to one cell. The cells may be remapped to an HARQ-ACK message and a CQI or PCI/CQI message within an HS-DPCCH on a condition that any cell is activated or deactivated on that HS-DPCCH.

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Номер записи: 95
12-07-2012 дата публикации

Discontinuous Reception for Multi-Component Carrier System

Номер: US20120178445A1
Автор: Jarkko Koskela, Jorma Kaikkonen, Lars Dalsgaard
Принадлежит: Nokia Oyj

A method includes operating a user equipment to initiate monitoring of a control channel associated with a particular component carrier for determining if the user equipment is scheduled by the control channel associated with the particular component carrier. In response to determining that the user equipment is not scheduled, autonomously terminating the monitoring of the control channel associated with the particular component carrier. A further method includes establishing a set of rules defining how and when a user equipment autonomously deactivates use of component carriers transmitted by a network access node. The network access node assumes, in response to the network access node not scheduling the user equipment in a control channel of a particular component carrier for some period, that the user equipment has autonomously deactivated monitoring of the control channel of the particular component carrier Various apparatus and computer programs are also disclosed that operate in accordance with the methods.

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Номер записи: 96
19-07-2012 дата публикации

Method and system for optimizing power resources in wireless devices

Номер: US20120182941A1
Автор: Steven Jeffrey Goldberg
Принадлежит: InterDigital Technology Corp

A method and system is disclosed for a device to quickly determine if data is being sent to it. If no data is being sent to the device, the device may return to a sleep mode so as to conserve energy. The present invention includes organizing and transmitting, one at a time, all device destination identifiers. If a message listing search indicates that no message is being sent for a device, the device can continue with any other activity that needs servicing, or if no other activity is pending, it may shut down to conserve power until the next wake up period arrives. If the search returns a positive indication, the count value when the identifier is found can be used to determine the location of the pointer to the message.

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Номер записи: 97
19-07-2012 дата публикации

Apparatus and method for using multiple devices

Номер: US20120184212A1
Автор: Jong-Ook Jeong, Jong-Sung Kim
Принадлежит: PANTECH CO LTD

An apparatus and method for providing a communication service to a terminal having a specific identifier (ID), and an apparatus and method for receiving a communication service are disclosed. The method includes recognizing an attribute of a terminal, determining whether the communication service is appropriate for the terminal, and if it is determined that the communication service is appropriate, setting the terminal to an active mode.

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Номер записи: 98
19-07-2012 дата публикации

Mobile communication system, mobile station apparatus, base station apparatus, and setting change method

Номер: US20120184320A1
Автор: Masatomo Inoue, Mitsuhiro Tani
Принадлежит: Fujitsu Ltd

In a mobile communication system, a base station apparatus stores setting change information which includes setup information that is changed in accordance with a prescribed event when the prescribed event occurs, timing information that specifies a timing for making a setting change, and trigger information that specifies an action based on which the base station apparatus and a mobile station apparatus compute the setting change timing for the base station apparatus and the mobile station apparatus, respectively; and transmits, in advance of occurrence of the prescribed event, the setting change information to the mobile station apparatus. When the action specified in the trigger information occurs, the mobile station apparatus and the base station apparatus each determine the setting change timing in accordance with the timing information and effect the setting change at the determined timing in accordance with the setup information.

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Номер записи: 99
26-07-2012 дата публикации

Method for controlling power in wireless ad-hoc network

Номер: US20120188924A1
Автор: Choongil YEH, Dong Hyun AHN
Принадлежит: Electronics and Telecommunications Research Institute ETRI

A node in a wireless network system determines transmission power by performing transmission power control only on a plurality of data subcarriers, other than a plurality of pilot subcarriers, of a PDU slot or ACK slot to be transmitted, and then transmits the data subcarriers of the PDU slot or ACK slot at the determined transmission power and transmits the pilot subcarriers of the PDU slot or ACK slot at a fixed power level. Accordingly, neighboring nodes determine whether or not a channel of the PDU slot or ACK slot is sensed by using the pilot subcarriers of the PDU slot or ACK slot.

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Номер записи: 100
26-07-2012 дата публикации

Syncronizing wireless devices

Номер: US20120188998A1
Автор: Norbert Philips, Steven Mark Thoen, Thierry G C Walrant, Valentin Claessens
Принадлежит: NXP BV

A method of synchronising the reference clock of a first wireless device with a master reference clock of a second wireless device via a wireless network. The method involves transmitting, from the second wireless device to the first wireless device, a dedicated synchronisation frame via a dedicated synchronisation channel; receiving the dedicated synchronisation frame at the first wireless device; and synchronising the reference clock of the first wireless device with the master reference clock of the second wireless device based on the received dedicated synchronisation frame.

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Номер записи: 101
26-07-2012 дата публикации

Method and apparatus for determining timing information for cells

Номер: US20120190373A1
Автор: Nathan E. Tenny
Принадлежит: Qualcomm Inc

Techniques for determining timing information for cells are disclosed. A user equipment (UE) may communicate with a serving cell and may need to make measurements of other cells, e.g., to support positioning of the UE. Each cell may transmit reference signals based on its timing. Different cells may operate asynchronously or with unknown timing. The UE may send a request for measurement gaps to the serving cell and may include timing information in the request. The timing information may (directly or indirectly) convey relative timing between the serving cell and a reference cell. The serving cell may determine measurement gaps at the proper time for other cells based on the timing information from the UE and may avoid scheduling the UE for data transmission during the measurement gaps. The UE may make measurements of other cells during the measurement gaps, without losing any data from the serving cell.

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Номер записи: 102