WO2011042845A3 - Procédé de signalisation d'un précodage dans un mode de transmission à formation de faisceau coopérative - Google Patents

Procédé de signalisation d'un précodage dans un mode de transmission à formation de faisceau coopérative Download PDF

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Publication number
WO2011042845A3
WO2011042845A3 PCT/IB2010/054440 IB2010054440W WO2011042845A3 WO 2011042845 A3 WO2011042845 A3 WO 2011042845A3 IB 2010054440 W IB2010054440 W IB 2010054440W WO 2011042845 A3 WO2011042845 A3 WO 2011042845A3
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WO
WIPO (PCT)
Prior art keywords
cell
precoding
precoding matrix
signalling
transmission mode
Prior art date
Application number
PCT/IB2010/054440
Other languages
English (en)
Other versions
WO2011042845A2 (fr
Inventor
Timothy James Moulsley
Choo Chiap Chiau
Original Assignee
Koninklijke Philips Electronics N.V.
Sharp Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics N.V., Sharp Kabushiki Kaisha filed Critical Koninklijke Philips Electronics N.V.
Priority to JP2012531545A priority Critical patent/JP5675824B2/ja
Priority to RU2012118644/07A priority patent/RU2559292C2/ru
Priority to KR1020127011499A priority patent/KR101731270B1/ko
Priority to EP10771199.6A priority patent/EP2486666B1/fr
Priority to CN201080045545.4A priority patent/CN102577151B/zh
Publication of WO2011042845A2 publication Critical patent/WO2011042845A2/fr
Publication of WO2011042845A3 publication Critical patent/WO2011042845A3/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H04L5/0035—Resource allocation in a cooperative multipoint environment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/0478—Special codebook structures directed to feedback optimisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/0486—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking channel rank into account
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0634—Antenna weights or vector/matrix coefficients
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0641—Differential feedback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0658—Feedback reduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03891—Spatial equalizers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
  • Radio Relay Systems (AREA)

Abstract

La présente invention porte sur un procédé d'exploitation d'une station secondaire dans un réseau, la station secondaire comprenant un émetteur-récepteur conçu pour recevoir simultanément des transmissions provenant d'une station primaire commandant une première cellule et d'au moins une station primaire commandant une seconde cellule, le procédé consistant, pour la station secondaire, à (a) sélectionner une première matrice de précodage pour la première cellule parmi un ensemble primaire de matrices de précodage pour la première cellule, (b) sélectionner un sous-ensemble d'au moins une matrice de précodage pour l'au moins une seconde cellule en fonction de la première matrice de précodage, parmi un ensemble de sous-ensembles de matrices de précodage pour la seconde cellule, (c) sélectionner une seconde matrice de précodage pour l'au moins une seconde cellule dans le sous-ensemble sélectionné de matrices de précodage pour la seconde cellule, (d) envoyer un premier indicateur représentatif de la première matrice de précodage.
PCT/IB2010/054440 2009-10-05 2010-10-01 Procédé de signalisation d'un précodage dans un mode de transmission à formation de faisceau coopérative WO2011042845A2 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2012531545A JP5675824B2 (ja) 2009-10-05 2010-10-01 協調ビーム成形送信モードにおけるプリコーディングを通知するための方法
RU2012118644/07A RU2559292C2 (ru) 2009-10-05 2010-10-01 Способ сигнализации предварительного кодирования в режиме передачи с совместным формированием диаграммы направленности
KR1020127011499A KR101731270B1 (ko) 2009-10-05 2010-10-01 협동 빔포밍 송신 모드에서 프리코딩을 시그널링하기 위한 방법
EP10771199.6A EP2486666B1 (fr) 2009-10-05 2010-10-01 Procédé de signalisation d'un précodage dans un mode de transmission à formation de faisceau coopérative
CN201080045545.4A CN102577151B (zh) 2009-10-05 2010-10-01 一种用于在协作波束赋形传输模式下用信号通知预编码的方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP09172194.4 2009-10-05
EP09172194 2009-10-05

Publications (2)

Publication Number Publication Date
WO2011042845A2 WO2011042845A2 (fr) 2011-04-14
WO2011042845A3 true WO2011042845A3 (fr) 2011-06-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2010/054440 WO2011042845A2 (fr) 2009-10-05 2010-10-01 Procédé de signalisation d'un précodage dans un mode de transmission à formation de faisceau coopérative

Country Status (8)

Country Link
US (3) US8634779B2 (fr)
EP (1) EP2486666B1 (fr)
JP (1) JP5675824B2 (fr)
KR (1) KR101731270B1 (fr)
CN (1) CN102577151B (fr)
RU (1) RU2559292C2 (fr)
TW (1) TWI497936B (fr)
WO (1) WO2011042845A2 (fr)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170045370A (ko) 2008-04-29 2017-04-26 애플 인크. 다중 안테나 빔 형성 셀룰러 네트워크의 성능 향상
JP2012525757A (ja) * 2009-04-30 2012-10-22 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ ネットワークにおいて通信するための方法
WO2011121499A2 (fr) 2010-04-02 2011-10-06 Koninklijke Philips Electronics N.V. Procédé d'exploitation d'une station secondaire
US8599761B2 (en) * 2010-05-14 2013-12-03 Samsung Electronics Co., Ltd. Systems and methods for PUCCH feedback in 3GPP wireless networks
MX355906B (es) 2010-12-10 2018-05-04 Sun Patent Trust Método de precodificación y dispositivo de transmisión.
US9325401B2 (en) * 2011-05-13 2016-04-26 Fujitsu Limited Beamforming from multiple transmission sites
CN102355285B (zh) * 2011-08-09 2017-02-08 中兴通讯股份有限公司 一种基于波束扫描的CoMP实现方法及系统
US9281880B2 (en) * 2011-08-15 2016-03-08 Sharp Kabushiki Kaisha Wireless transmission device and wireless reception device
US9019849B2 (en) 2011-11-07 2015-04-28 Telefonaktiebolaget L M Ericsson (Publ) Dynamic space division duplex (SDD) wireless communications with multiple antennas using self-interference cancellation
US9065494B2 (en) * 2012-01-27 2015-06-23 Telefonaktiebolaget L M Ericsson (Publ) Methods for selecting precoding vectors for multi-point MIMO (multiple-input-multiple-output) communications and related wireless terminals and radio network nodes
WO2013141790A2 (fr) 2012-03-19 2013-09-26 Telefonaktiebolaget L M Ericsson (Publ) Procédés utilisant des livres de codes harq-ack pour exécuter des communications à flux multiples, et terminaux sans fil et nœuds de réseau radio correspondants
US9407343B2 (en) * 2012-08-31 2016-08-02 Google Technology Holdings LLC Method and apparatus for mitigating downlink interference
US9484997B2 (en) 2012-11-21 2016-11-01 Telefonaktiebolaget Lm Ericsson (Publ) Determining a precoder of a codebook
KR20150121003A (ko) * 2013-03-05 2015-10-28 엘지전자 주식회사 다중 셀 기반 무선 통신 시스템에서 수직 빔포밍을 위한 채널 상태 정보의 보고 방법 및 이를 위한 장치
JP5701332B2 (ja) * 2013-05-07 2015-04-15 シャープ株式会社 基地局装置、端末装置、通信システムおよび通信方法
CN104283631A (zh) * 2013-07-05 2015-01-14 株式会社Ntt都科摩 生成用于三维mimo系统的预编码矩阵的方法和装置以及发射机
US10117087B2 (en) 2013-08-01 2018-10-30 Fujitsu Limited Terminal clustering
CA2931885C (fr) * 2013-12-09 2018-02-13 Huawei Technologies Co., Ltd. Procede de traitement de signal et station de base
WO2016021749A1 (fr) * 2014-08-06 2016-02-11 엘지전자 주식회사 Procédé et dispositif de transmission de signal de réaction
CN105703876B (zh) * 2014-11-25 2018-10-19 华为技术有限公司 传输数据的方法、基站和用户设备
WO2016204370A1 (fr) * 2015-06-19 2016-12-22 Lg Electronics Inc. Procédé et appareil permettant de transmettre et recevoir des informations de commande
WO2017074520A1 (fr) * 2015-10-30 2017-05-04 Intel IP Corporation Détection de poinçonnage d'un premier pdsch par un second pdsch ayant un tti plus court
CA3021325A1 (fr) 2016-04-20 2017-10-26 S.C. Johnson & Son, Inc. Compositions antimicrobiennes moussantes
CN107707285B (zh) * 2016-08-05 2021-04-09 华为技术有限公司 信道状态信息的发送方法、接收方法以及装置
CN108075810B (zh) * 2016-11-11 2021-05-07 上海诺基亚贝尔股份有限公司 用于发送和接收数据的方法和设备
WO2018107430A1 (fr) 2016-12-15 2018-06-21 Qualcomm Incorporated Bits de crc pour le décodage et la vérification conjoints d'informations de commande à l'aide de codes polaires
WO2018173163A1 (fr) * 2017-03-22 2018-09-27 株式会社Ｎｔｔドコモ Terminal utilisateur et procédé de communication radio
EP3455960B1 (fr) * 2017-06-28 2021-02-17 Telefonaktiebolaget LM Ericsson (publ) Procédé et premier noeud radio permettant de communiquer des données à l'aide de livres de codes hiérarchiques et d'une sélection de précodeurs multi-étages
CN109361498B (zh) 2017-08-12 2019-09-20 华为技术有限公司 预编码矩阵子集限制的方法和传输装置
DE112017007997T5 (de) * 2017-08-30 2020-06-04 Intel Corporation Verfahren und vorrichtungen zum ermöglichen gemeinsamer strahlformung in einem drahtlosnetzwerk
WO2020073289A1 (fr) * 2018-10-11 2020-04-16 Lenovo (Beijing) Limited Procédé et appareil pour transmissions pusch basées sur un livre de codes à panneaux multiples et/ou à faisceaux multiples
US11757855B2 (en) * 2019-05-02 2023-09-12 Electronics And Telecommunications Research Institute Method and apparatus for communications using secret key in communication system
BR112022008689A2 (pt) * 2019-11-05 2022-07-26 Omnifi Inc Otimização de software de sistema de rede sem fio flexível
CN112260735B (zh) * 2020-10-09 2022-01-28 哲库科技(北京)有限公司 一种码本确定方法、终端及存储介质
CN113364496B (zh) * 2021-05-18 2022-08-09 西安交通大学 一种基于建设性干扰的多小区分布式协作方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009084877A1 (fr) * 2007-12-28 2009-07-09 Samsung Electronics Co., Ltd. Procédé et appareil d'émission/réception de données de liaison descendante dans un réseau de communication sans fil
US20090181708A1 (en) * 2007-12-31 2009-07-16 Jae Wan Kim Method for reducing inter-cell interference

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5710768A (en) * 1994-09-30 1998-01-20 Qualcomm Incorporated Method of searching for a bursty signal
US8023457B2 (en) * 2006-10-02 2011-09-20 Freescale Semiconductor, Inc. Feedback reduction for MIMO precoded system by exploiting channel correlation
WO2008069547A1 (fr) * 2006-12-04 2008-06-12 Samsung Electronics Co., Ltd. Dispositif et procédé de transmission/réception d'information de retour dans un système de communcaitions mobiles à antennes réseau
US20080233902A1 (en) * 2007-03-21 2008-09-25 Interdigital Technology Corporation Method and apparatus for communicating precoding or beamforming information to users in mimo wireless communication systems
GB0800366D0 (en) * 2008-01-09 2008-02-20 Icera Inc System and method of wireless communication
WO2010017101A2 (fr) * 2008-08-05 2010-02-11 Interdigital Patent Holdings, Inc. Procédé et appareil de mise en oeuvre de techniques de coopération multicellule
US8797950B2 (en) * 2009-05-27 2014-08-05 Texas Instruments Incorporated Dual-layer beam forming in cellular networks
US8711716B2 (en) * 2009-06-19 2014-04-29 Texas Instruments Incorporated Multiple CQI feedback for cellular networks

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009084877A1 (fr) * 2007-12-28 2009-07-09 Samsung Electronics Co., Ltd. Procédé et appareil d'émission/réception de données de liaison descendante dans un réseau de communication sans fil
US20090181708A1 (en) * 2007-12-31 2009-07-16 Jae Wan Kim Method for reducing inter-cell interference
US20090207822A1 (en) * 2007-12-31 2009-08-20 Lg Electronics Inc. Method for transmitting and receiving signals using collaborative MIMO scheme

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TEXAS INSTRUMENTS: "Aspects of Coordinated Multi-point Transmission for Advanced E-UTRA", 3GPP DRAFT; R1-083530 TI COOPERATIVE MP V3, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, no. Prague, Czech Republic; 20080924, 24 September 2008 (2008-09-24), XP050316894 *

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Publication number Publication date
US20110081901A1 (en) 2011-04-07
JP5675824B2 (ja) 2015-02-25
RU2012118644A (ru) 2013-11-10
TW201138341A (en) 2011-11-01
CN102577151B (zh) 2015-02-25
KR101731270B1 (ko) 2017-05-11
JP2013507030A (ja) 2013-02-28
EP2486666A2 (fr) 2012-08-15
US20140044209A1 (en) 2014-02-13
TWI497936B (zh) 2015-08-21
EP2486666B1 (fr) 2019-07-03
US9276714B2 (en) 2016-03-01
US8634779B2 (en) 2014-01-21
WO2011042845A2 (fr) 2011-04-14
RU2559292C2 (ru) 2015-08-10
CN102577151A (zh) 2012-07-11
KR20120115218A (ko) 2012-10-17
US20140241291A1 (en) 2014-08-28
US9270428B2 (en) 2016-02-23

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