JP2012105256A5 - - Google Patents

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JP2012105256A5
JP2012105256A5 JP2011221992A JP2011221992A JP2012105256A5 JP 2012105256 A5 JP2012105256 A5 JP 2012105256A5 JP 2011221992 A JP2011221992 A JP 2011221992A JP 2011221992 A JP2011221992 A JP 2011221992A JP 2012105256 A5 JP2012105256 A5 JP 2012105256A5
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feedback
snr
signal
terminal
transmitting
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JP2011221992A 2010-10-06 2011-10-06 マルチユーザーｍｉｍｏのための改良チャネルフィードバック Active JP5880925B2 (ja)

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US39042310P 2010-10-06 2010-10-06
US61/390,423 2010-10-06
US39379710P 2010-10-15 2010-10-15
US61/393,797 2010-10-15
US41184510P 2010-11-09 2010-11-09
US61/411,845 2010-11-09

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JP2012105256A JP2012105256A (ja) 2012-05-31
JP2012105256A5 true JP2012105256A5 (enExample) 2014-11-13
JP5880925B2 JP5880925B2 (ja) 2016-03-09

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US (1) US8615052B2 (enExample)
EP (1) EP2439857A3 (enExample)
JP (1) JP5880925B2 (enExample)
CN (1) CN102546094A (enExample)
DE (1) DE202011111022U1 (enExample)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8391392B2 (en) 2009-01-05 2013-03-05 Marvell World Trade Ltd. Precoding codebooks for MIMO communication systems
US8385441B2 (en) 2009-01-06 2013-02-26 Marvell World Trade Ltd. Efficient MIMO transmission schemes
US8238483B2 (en) * 2009-02-27 2012-08-07 Marvell World Trade Ltd. Signaling of dedicated reference signal (DRS) precoding granularity
EP3512219B1 (en) 2009-04-06 2022-05-04 Marvell Asia Pte, Ltd. Improved feedback strategies for multi-user mimo communication systems
US8675794B1 (en) 2009-10-13 2014-03-18 Marvell International Ltd. Efficient estimation of feedback for modulation and coding scheme (MCS) selection
US8917796B1 (en) 2009-10-19 2014-12-23 Marvell International Ltd. Transmission-mode-aware rate matching in MIMO signal generation
JP5669854B2 (ja) 2009-11-09 2015-02-18 マーベル ワールド トレード リミテッド 調整送信を利用する基地局にフィードバックデータを送信するための方法及び装置、並びに調整送信スキームを利用する基地局及びフィードバックデータを送信する移動通信端末を備えたシステム
CN102783120B (zh) 2009-12-17 2015-07-01 马维尔国际贸易有限公司 用于交叉极化天线的mimo反馈方案
DE202011111016U1 (de) 2010-01-07 2018-05-02 Marvell World Trade Ltd. Signalisierung von dedizierten Referenzsignal (DRS) - Vorcodierungsgranularität
JP5258002B2 (ja) 2010-02-10 2013-08-07 マーベル ワールド トレード リミテッド Ｍｉｍｏ通信システムにおける装置、移動通信端末、チップセット、およびその方法
US8687741B1 (en) 2010-03-29 2014-04-01 Marvell International Ltd. Scoring hypotheses in LTE cell search
US8879490B2 (en) * 2010-07-01 2014-11-04 Lg Electronics Inc. Method and apparatus for transceiving a MIMO packet in a wireless LAN system
JP2012100254A (ja) 2010-10-06 2012-05-24 Marvell World Trade Ltd Ｐｕｃｃｈフィードバックのためのコードブックサブサンプリング
WO2012081843A1 (ko) * 2010-12-16 2012-06-21 엘지전자 주식회사 다중 안테나 무선 통신 시스템에서 채널 상태 정보를 보고하는 방법 및 이를 위한 장치
US9048970B1 (en) 2011-01-14 2015-06-02 Marvell International Ltd. Feedback for cooperative multipoint transmission systems
US8861391B1 (en) 2011-03-02 2014-10-14 Marvell International Ltd. Channel feedback for TDM scheduling in heterogeneous networks having multiple cell classes
CN103548284B (zh) 2011-03-31 2017-07-21 马维尔国际贸易有限公司 用于协作多点传输的信道反馈
CN102752033B (zh) * 2011-04-22 2017-07-04 株式会社Ntt都科摩 移动通信系统中多用户信道质量的确定方法及其用户终端和基站
US9008677B2 (en) * 2011-06-08 2015-04-14 Qualcomm Incorporated Communication devices for multiple group communications
JP5753022B2 (ja) * 2011-08-15 2015-07-22 株式会社Ｎｔｔドコモ 無線通信システム、無線基地局装置、ユーザ端末及び無線通信方法
US8923427B2 (en) 2011-11-07 2014-12-30 Marvell World Trade Ltd. Codebook sub-sampling for frequency-selective precoding feedback
WO2013068915A2 (en) 2011-11-07 2013-05-16 Marvell World Trade Ltd. Precoding feedback for cross-polarized antennas with magnitude information
US9031597B2 (en) 2011-11-10 2015-05-12 Marvell World Trade Ltd. Differential CQI encoding for cooperative multipoint feedback
US9220087B1 (en) 2011-12-08 2015-12-22 Marvell International Ltd. Dynamic point selection with combined PUCCH/PUSCH feedback
US9917629B2 (en) * 2011-12-14 2018-03-13 Qualcomm Incoroporated Multi-hypothesis channel quality indicator feedback
CN103999513B (zh) * 2011-12-23 2018-04-06 爱立信(中国)通信有限公司 用于mu‑mimo的上行链路功率控制
US8902842B1 (en) 2012-01-11 2014-12-02 Marvell International Ltd Control signaling and resource mapping for coordinated transmission
US9143951B2 (en) 2012-04-27 2015-09-22 Marvell World Trade Ltd. Method and system for coordinated multipoint (CoMP) communication between base-stations and mobile communication terminals
EP4199370A1 (en) 2012-05-17 2023-06-21 Marvell Asia Pte, Ltd. Calculating and reporting channel characteristics
JP6224880B2 (ja) * 2012-07-31 2017-11-01 株式会社Ｎｔｔドコモ 基地局装置、ユーザ端末、通信システム及び通信制御方法
US8983002B2 (en) 2012-10-02 2015-03-17 Broadcom Corporation Systems and methods for establishing transmission format parameters between communication devices
CN103023544B (zh) * 2012-12-21 2014-11-19 郑州大学 Mimo干扰信道系统的低复杂度干扰对齐方法
KR102236286B1 (ko) * 2013-04-01 2021-04-05 한국전자통신연구원 Su-mimo 전송에서의 기회적 간섭 정렬 방법 및 장치
KR102164972B1 (ko) * 2013-04-01 2020-10-13 한국전자통신연구원 Mu-mimo 전송에서의 기회적 간섭 정렬 방법 및 장치
CN104243105B (zh) * 2013-06-17 2017-12-15 华为技术有限公司 一种提高单射频多进多出mimo传输可靠性方法及装置
US9787333B2 (en) * 2013-09-13 2017-10-10 Hewlett Packard Enterprise Development Lp Subcarrier power reallocation
US9755802B2 (en) * 2013-09-25 2017-09-05 Collision Communications, Inc. Methods, systems, and computer program products for parameter estimation based on historical context information
CN103607232B (zh) * 2013-12-04 2016-06-29 西安电子科技大学 基于干扰对齐算法的预编码优化选择方法
US9961560B2 (en) * 2014-07-31 2018-05-01 Collision Communications, Inc. Methods, systems, and computer program products for optimizing a predictive model for mobile network communications based on historical context information
CN107466452B (zh) * 2015-04-08 2020-07-03 Lg 电子株式会社 报告信道状态的方法及其装置
US10707931B2 (en) 2018-11-02 2020-07-07 At&T Intellectual Property I, L.P. Linear combination codebook based per layer power allocation feedback for 5G or other next generation network
CN113949471A (zh) * 2020-07-15 2022-01-18 华为技术有限公司 一种测量反馈方法及装置

Family Cites Families (161)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5231629A (en) 1990-10-01 1993-07-27 Motorola, Inc. Full-duplex communication system
US5349567A (en) 1993-08-24 1994-09-20 Hughes Aircraft Company Least mean square (LMS) normalizer for active sonar
CA2302289C (en) 1996-08-29 2005-11-08 Gregory G. Raleigh Spatio-temporal processing for communication
US5940439A (en) 1997-02-26 1999-08-17 Motorola Inc. Method and apparatus for adaptive rate communication system
US6141184A (en) 1998-04-23 2000-10-31 Quantum Corporation Tape drive data storage device having perpendicularly adjusted tape guides
US6139042A (en) 1998-05-07 2000-10-31 Case Corporation Truck hitch mounting frame
US6512750B1 (en) 1999-04-16 2003-01-28 Telefonaktiebolaget Lm Ericsson (Publ) Power setting in CDMA systems employing discontinuous transmission
US6139379A (en) 1999-09-04 2000-10-31 Jamieson; John R. Jet propelled watercraft and a simplified low cost drive therefor
US6757319B1 (en) 1999-11-29 2004-06-29 Golden Bridge Technology Inc. Closed loop power control for common downlink transport channels
US6865237B1 (en) 2000-02-22 2005-03-08 Nokia Mobile Phones Limited Method and system for digital signal transmission
US6466904B1 (en) 2000-07-25 2002-10-15 Conexant Systems, Inc. Method and apparatus using harmonic modeling in an improved speech decoder
US6785341B2 (en) 2001-05-11 2004-08-31 Qualcomm Incorporated Method and apparatus for processing data in a multiple-input multiple-output (MIMO) communication system utilizing channel state information
US7502432B2 (en) 2003-07-09 2009-03-10 Broadcom Corporation Weight generation method for multi-antenna communication systems utilizing RF-based and baseband signal weighting and combining based upon minimum bit error rate
US7336746B2 (en) 2004-12-09 2008-02-26 Qualcomm Incorporated Data transmission with spatial spreading in a MIMO communication system
US7346115B2 (en) 2004-04-22 2008-03-18 Qualcomm Incorporated Iterative eigenvector computation for a MIMO communication system
US20050250544A1 (en) 2004-05-07 2005-11-10 Stephen Grant Base station, mobile terminal device and method for implementing a selective-per-antenna-rate-control (S-PARC) technique in a wireless communications network
US9271221B2 (en) 2004-06-22 2016-02-23 Apple Inc. Closed loop MIMO systems and methods
DE602004022932D1 (de) 2004-07-13 2009-10-15 Alcatel Lucent Verfahren zur endgeräteunterstützen Interferenzkontrolle in einem Mehrträger-Mobilkommunikationssystem
US7978649B2 (en) * 2004-07-15 2011-07-12 Qualcomm, Incorporated Unified MIMO transmission and reception
KR101151130B1 (ko) 2004-08-17 2012-06-04 삼성전자주식회사 완전 다이버시티 완전 데이터 레이트 시공간 블록 부호를 이용한 데이터 송수신 방법 및 장치
KR20060038812A (ko) 2004-11-01 2006-05-04 엘지전자 주식회사 다중입출력 시스템의 선행 코딩 행렬 정보 전송 방법 및이를 이용한 신호 전송 방법
KR20060043035A (ko) 2004-11-02 2006-05-15 삼성전자주식회사 개선된 다중입출력 통신 시스템 및 방법
SI1829262T1 (en) 2004-11-16 2018-05-31 Qualcomm Incorporated Closed-loop speed control for the MIMO communication system
US7428268B2 (en) 2004-12-07 2008-09-23 Adaptix, Inc. Cooperative MIMO in multicell wireless networks
RU2369027C2 (ru) 2005-01-11 2009-09-27 Самсунг Электроникс Ко., Лтд. Способ и система для указания назначения пакета данных в системе беспроводной связи
JP4832087B2 (ja) 2005-01-26 2011-12-07 パナソニック株式会社 無線基地局装置及び端末装置
KR100922958B1 (ko) 2005-03-14 2009-10-22 삼성전자주식회사 다중 사용자 다이버시티를 지원하는 다중 안테나 이동통신시스템에서 사용자 할당장치 및 방법
US9408220B2 (en) 2005-04-19 2016-08-02 Qualcomm Incorporated Channel quality reporting for adaptive sectorization
US8189714B2 (en) 2005-05-04 2012-05-29 Rockstar Bidco, LP Wireless feedback system and method
DE602005027822D1 (de) 2005-05-25 2011-06-16 Mitsubishi Electric Corp Kodierungsmatrix in einem MIMO System
US7428269B2 (en) 2005-06-01 2008-09-23 Qualcomm Incorporated CQI and rank prediction for list sphere decoding and ML MIMO receivers
KR101038477B1 (ko) 2005-09-20 2011-06-03 맥스테크 커뮤니케이션 네트웍스 리미티드 실시간 피어 투 피어 네트워크
US20070076810A1 (en) 2005-09-30 2007-04-05 Herrera Alfonso R System and method for selecting transmission format using effective SNR
US20070165738A1 (en) 2005-10-27 2007-07-19 Barriac Gwendolyn D Method and apparatus for pre-coding for a mimo system
US20070099578A1 (en) 2005-10-28 2007-05-03 Kathryn Adeney Pre-coded diversity forward channel transmission system for wireless communications systems supporting multiple MIMO transmission modes
KR20070108304A (ko) 2005-10-31 2007-11-09 삼성전자주식회사 다중 송수신 안테나 시스템에서의 채널 품질 정보 송수신방법 및 장치
WO2007074376A2 (en) 2005-12-27 2007-07-05 Nokia Corporation Priority based transmission based on channel quality using power sequencing
US9071435B2 (en) * 2005-12-29 2015-06-30 Celeno Communications Ltd. System and method for tuning transmission parameters in multi-user multiple-input-multiple-output systems with aged and noisy channel estimation
US20070153731A1 (en) 2006-01-05 2007-07-05 Nadav Fine Varying size coefficients in a wireless local area network return channel
KR101012553B1 (ko) 2006-02-02 2011-02-07 후지쯔 가부시끼가이샤 무선 전송 방법과 무선 송신기 및 무선 수신기
KR100819285B1 (ko) * 2006-03-16 2008-04-02 삼성전자주식회사 다중 사용자를 지원하는 다중 안테나 시스템에서의 피드 백 정보 송/수신방법 및 그 시스템
US8059609B2 (en) 2006-03-20 2011-11-15 Qualcomm Incorporated Resource allocation to support single-user and multi-user MIMO transmission
US8914015B2 (en) * 2006-03-20 2014-12-16 Qualcomm Incorporated Grouping of users for MIMO transmission in a wireless communication system
US7804800B2 (en) 2006-03-31 2010-09-28 Intel Corporation Efficient training schemes for MIMO based wireless networks
US7751368B2 (en) 2006-05-01 2010-07-06 Intel Corporation Providing CQI feedback to a transmitter station in a closed-loop MIMO system
KR101345868B1 (ko) 2006-05-09 2014-01-15 인터디지탈 테크날러지 코포레이션 범용 지상 무선 액세스를 위한 가변 피드백
TWI406577B (zh) 2006-05-17 2013-08-21 Lg Electronics Inc 在一無線通訊系統中用以實施往前鍊結之超位址編碼的方法
US20150030058A9 (en) 2006-05-17 2015-01-29 Texas Instruments Inc. Cqi feedback for mimo deployments
TWI343200B (en) 2006-05-26 2011-06-01 Lg Electronics Inc Method and apparatus for signal generation using phase-shift based pre-coding
EP2033335B1 (en) 2006-06-20 2009-12-30 Huawei Technologies Co., Ltd. Method for reducing feedback information overhead in precoded mimo-ofdm systems
KR101295576B1 (ko) 2006-06-22 2013-08-09 엘지전자 주식회사 위상천이 기반의 프리코딩을 이용한 데이터 전송 방법 및이를 구현하는 송신 장치
US7593729B2 (en) 2006-07-13 2009-09-22 Designart Networks Ltd Point to point link and communication method
US7941186B2 (en) * 2006-07-25 2011-05-10 Samsung Electronics Co., Ltd. Apparatus and method for scheduling multiuser/single user in multiple input multiple output (MIMO) system
US7450673B2 (en) 2006-08-10 2008-11-11 Cisco Technology, Inc. System and method for improving the robustness of spatial division multiple access via nulling
KR20080022033A (ko) * 2006-09-05 2008-03-10 엘지전자 주식회사 프리코딩 정보 피드백 방법 및 프리코딩 방법
KR20080026019A (ko) 2006-09-19 2008-03-24 엘지전자 주식회사 위상천이 기반의 프리코딩 방법 및 이를 지원하는 송수신기
US8102931B2 (en) 2006-09-29 2012-01-24 Apple Inc. Method and device for operating a precoded MIMO system
US7702029B2 (en) 2006-10-02 2010-04-20 Freescale Semiconductor, Inc. MIMO precoding enabling spatial multiplexing, power allocation and adaptive modulation and coding
US20080080635A1 (en) 2006-10-02 2008-04-03 Nokia Corporation Advanced feedback signaling for multi-antenna transmission systems
US8503560B2 (en) 2006-10-02 2013-08-06 Samsung Electronics Co., Ltd System and method for performing precoding in a wireless communication system
CN101166052B (zh) 2006-10-19 2012-05-23 株式会社Ntt都科摩 一种多输入多输出系统的预编码方法及使用该方法的设备
US7920511B2 (en) 2006-10-31 2011-04-05 Samsung Electronics Co., Ltd. Method and system for managing channels in a wireless communication system
US8305948B2 (en) 2006-11-15 2012-11-06 Qualcomm Incorporated Transmissions to multiple stations in wireless communication systems
KR100961745B1 (ko) 2006-11-27 2010-06-07 삼성전자주식회사 릴레이 방식을 사용하는 무선통신시스템에서 채널정보 통신장치 및 방법
US20080130778A1 (en) 2006-12-04 2008-06-05 Samsung Electronics Co., Ltd. System and method for wireless communication of uncompressed high definition video data using a transfer matrix for beamforming estimation
JP2008147792A (ja) 2006-12-06 2008-06-26 Mitsubishi Electric Corp 無線通信装置、制御装置および無線通信システム
US8073069B2 (en) 2007-01-05 2011-12-06 Apple Inc. Multi-user MIMO-SDMA for finite rate feedback systems
KR20080073624A (ko) 2007-02-06 2008-08-11 삼성전자주식회사 다중 편파 다중 입출력 시스템을 위한 코드북 생성 방법 및그 장치
US8780771B2 (en) 2007-02-06 2014-07-15 Qualcomm Incorporated Cyclic delay diversity and precoding for wireless communication
US20080192852A1 (en) 2007-02-12 2008-08-14 Mark Kent Method and system for an alternating channel delta quantizer for 2x2 mimo pre-coders with finite rate channel state information feedback
US8068555B2 (en) 2007-02-13 2011-11-29 Telefonaktiebolaget L M Ericsson (Publ) Methods and systems for combined cyclic delay diversity and precoding of radio signals
KR100951089B1 (ko) 2007-02-15 2010-04-05 삼성전자주식회사 무선통신 시스템에서 시간 분할 복신 및 주파수 분할복신을 선택적으로 지원하기 위한 장치
FI20075142A0 (fi) 2007-02-26 2007-02-26 Nokia Corp Monipistelähetys
US7809074B2 (en) 2007-03-16 2010-10-05 Freescale Semiconductor, Inc. Generalized reference signaling scheme for multi-user, multiple input, multiple output (MU-MIMO) using arbitrarily precoded reference signals
CN101682909B (zh) * 2007-03-20 2011-07-27 华为技术有限公司 多用户多输入多输出无线系统中的信道质量估计
US8411732B2 (en) 2007-03-21 2013-04-02 Qualcomm Incorporated Fast square root algorithm for MIMO equalization
KR101115246B1 (ko) 2007-03-21 2012-02-16 인터디지탈 테크날러지 코포레이션 전용 기준 신호 모드에 기초하여 리소스 블록 구조를 전송 및 디코딩하는 ｍｉｍｏ 무선 통신 방법 및 장치
EP2130308B1 (en) 2007-03-22 2018-12-19 Marvell World Trade Ltd. Variable codebook for mimo system
US8787469B2 (en) 2007-04-04 2014-07-22 Samsung Electronics Co., Ltd. Method for codebook design and beamforming vector selection in per-user unitary rate control (PU2RC) system
CN101675602B (zh) 2007-04-30 2013-07-17 Lm爱立信电话有限公司 用于自适应进行多天线发送的方法和结构
US7965689B2 (en) 2007-05-14 2011-06-21 Motorola Mobility, Inc. Reference sequence construction for fast cell search
US8259824B2 (en) 2007-05-23 2012-09-04 Texas Instruments Incorporated Nested precoding codebook structures for MIMO systems
US7649831B2 (en) 2007-05-30 2010-01-19 Samsung Electronics Co., Ltd. Multi-user MIMO feedback and transmission in a wireless communication system
US8179775B2 (en) 2007-08-14 2012-05-15 Texas Instruments Incorporated Precoding matrix feedback processes, circuits and systems
KR100938756B1 (ko) 2007-07-06 2010-01-26 엘지전자 주식회사 무선통신 시스템에서 셀 탐색 과정을 수행하는 방법
KR100921769B1 (ko) 2007-07-12 2009-10-15 한국전자통신연구원 하향링크 프레임 생성 방법 및 셀 탐색 방법
WO2009037580A2 (en) 2007-07-16 2009-03-26 Nortel Networks Limited Providing space division multiple access in a wireless network
US8798183B2 (en) 2007-08-13 2014-08-05 Qualcomm Incorporated Feedback and rate adaptation for MIMO transmission in a time division duplexed (TDD) communication system
US8320486B2 (en) 2007-09-28 2012-11-27 Apple Inc. Retransmission method for HARQ in MIMO systems
US8553624B2 (en) 2007-10-10 2013-10-08 Samsung Electronics Co., Ltd. Asynchronous hybrid ARQ process indication in a MIMO wireless communication system
US20090110114A1 (en) 2007-10-26 2009-04-30 Eko Nugroho Onggosanusi Open-Loop MIMO Scheme and Signaling Support for Wireless Networks
WO2009061664A2 (en) 2007-11-09 2009-05-14 Interdigital Patent Holdings, Inc. Method and apparatus for performing rank overriding in long term evolution networks
EP2237460A4 (en) 2007-12-25 2014-05-28 Panasonic Corp Radio communication device, radio communication system and radio communication method
KR101430470B1 (ko) 2008-01-04 2014-08-19 엘지전자 주식회사 Ｈａｒｑ 방식을 이용하는 다중 안테나 시스템에서 신호재전송 방법
US9130612B2 (en) 2008-01-07 2015-09-08 Qualcomm Incorporated Unified uplink control signal formats
WO2009091307A1 (en) 2008-01-14 2009-07-23 Telefonaktiebolaget L M Ericsson (Publ) Open loop precoder cycling in mimo communications
KR101481584B1 (ko) 2008-06-24 2015-01-13 엘지전자 주식회사 전송 블록-코드워드 매핑 관계 규정 방법 및 이를 이용한 하향링크 신호 전송 방법
JP5272075B2 (ja) 2008-07-01 2013-08-28 テレフオンアクチーボラゲット エル エム エリクソン（パブル） Ｍｉｍｏ通信システムにおけるプリコーディング・マトリクスを用いる方法及び装置
GB2464447B (en) 2008-07-01 2011-02-23 Toshiba Res Europ Ltd Wireless communications apparatus
US8098750B2 (en) 2008-07-10 2012-01-17 Infineon Technologies Ag Method and device for transmitting a plurality of data symbols
KR101056614B1 (ko) 2008-07-30 2011-08-11 엘지전자 주식회사 다중안테나 시스템에서 데이터 전송방법
US8204151B2 (en) 2008-08-06 2012-06-19 Samsung Electronics Co., Ltd. Methods and apparatus to generate multiple antennas transmit precoding codebook
US9294160B2 (en) 2008-08-11 2016-03-22 Qualcomm Incorporated Method and apparatus for supporting distributed MIMO in a wireless communication system
US8555145B2 (en) 2008-09-04 2013-10-08 Apple Inc. Systems and methods of encoding using a reduced codebook with adaptive resetting
US8208936B2 (en) 2008-09-04 2012-06-26 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatus for improving cell-edge data throughput in a wireless communications system
US8170592B2 (en) 2008-09-12 2012-05-01 Broadcom Corporation Method and system for frame timing acquisition in evolved universal terrestrial radio access (EUTRA)
US20100067512A1 (en) 2008-09-17 2010-03-18 Samsung Electronics Co., Ltd. Uplink transmit diversity schemes with 4 antenna ports
US8934395B2 (en) 2008-10-24 2015-01-13 Qualcomm Incorporated Method and apparatus for uplink network MIMO in a wireless communication system
EP2182754B1 (en) 2008-10-30 2014-01-15 Telefonaktiebolaget LM Ericsson (publ) Method and receiver for estimating and reporting a channel quality measure
US8737507B2 (en) 2008-11-03 2014-05-27 Telefonaktiebolaget L M Ericsson (Publ) Method for transmitting of reference signals and determination of precoding matrices for multi-antenna transmission
US8780829B2 (en) 2008-12-11 2014-07-15 Lg Electronics Inc. Method for transmitting and receiving a comp reference signal in a multi-cell environment
US8638871B2 (en) 2008-12-22 2014-01-28 Motorola Mobility Llc System and method for combination multiple input, multiple output (MIMO) and beamforming
US8391392B2 (en) 2009-01-05 2013-03-05 Marvell World Trade Ltd. Precoding codebooks for MIMO communication systems
US8385441B2 (en) 2009-01-06 2013-02-26 Marvell World Trade Ltd. Efficient MIMO transmission schemes
US8428177B2 (en) 2009-02-25 2013-04-23 Samsung Electronics Co., Ltd. Method and apparatus for multiple input multiple output (MIMO) transmit beamforming
US8238483B2 (en) 2009-02-27 2012-08-07 Marvell World Trade Ltd. Signaling of dedicated reference signal (DRS) precoding granularity
WO2010101431A2 (en) 2009-03-04 2010-09-10 Lg Electronics Inc. Method for performing comp operation and transmitting feedback information in a wireless communication system
ES2905351T3 (es) 2009-03-17 2022-04-08 Nokia Solutions & Networks Oy Configuración de la transmisión de información de retroalimentación periódica en un canal compartido de enlace ascendente físico (PUSCH)
US20100238984A1 (en) 2009-03-19 2010-09-23 Motorola, Inc. Spatial Information Feedback in Wireless Communication Systems
EP3512219B1 (en) * 2009-04-06 2022-05-04 Marvell Asia Pte, Ltd. Improved feedback strategies for multi-user mimo communication systems
US8325843B2 (en) 2009-04-08 2012-12-04 Lg Electronics Inc. MIMO codebook generation
US20100260234A1 (en) 2009-04-09 2010-10-14 Motorola, Inc. Closed-loop transmission feedback in wireless communication systems
US8543063B2 (en) 2009-04-21 2013-09-24 Marvell World Trade Ltd. Multi-point opportunistic beamforming with selective beam attenuation
US8917707B2 (en) 2009-04-24 2014-12-23 Samsung Electronics Co., Ltd. Techniques for channel state information feedback in wireless communication system
US20100278278A1 (en) 2009-04-30 2010-11-04 Lg Electronics Inc. Method for setting precoder in open loop mimo system
US9178658B2 (en) 2009-05-06 2015-11-03 Futurewei Technologies, Inc. System and method for channel interleaver and layer mapping in a communications system
KR101751995B1 (ko) 2009-06-19 2017-06-28 엘지전자 주식회사 다중 안테나 시스템에서 공간 채널 공분산(ｓｐａｔｉａｌ ｃｈａｎｎｅｌｃｏｖａｒｉａｎｃｅ)를 이용하여 피드백 오버헤드를 최소화 하는 방법
US8462647B2 (en) 2009-07-28 2013-06-11 Broadcom Corporation Method and system for multiple frequency hypothesis testing with full synch acquisition in an E-UTRA/LTE UE receiver
US9014138B2 (en) 2009-08-07 2015-04-21 Blackberry Limited System and method for a virtual carrier for multi-carrier and coordinated multi-point network operation
CN101631004B (zh) 2009-08-10 2014-05-28 中兴通讯股份有限公司 一种预编码方法、系统及预编码码本的构造方法
US8923905B2 (en) 2009-09-30 2014-12-30 Qualcomm Incorporated Scrambling sequence initialization for coordinated multi-point transmissions
US9667378B2 (en) 2009-10-01 2017-05-30 Telefonaktiebolaget Lm Ericsson (Publ) Multi-granular feedback reporting and feedback processing for precoding in telecommunications
US8873650B2 (en) 2009-10-12 2014-10-28 Motorola Mobility Llc Configurable spatial channel information feedback in wireless communication system
US8447005B2 (en) 2009-11-05 2013-05-21 Telefonaktiebolaget L M Ericsson (Publ) Frequency synchronization methods and apparatus
JP5669854B2 (ja) 2009-11-09 2015-02-18 マーベル ワールド トレード リミテッド 調整送信を利用する基地局にフィードバックデータを送信するための方法及び装置、並びに調整送信スキームを利用する基地局及びフィードバックデータを送信する移動通信端末を備えたシステム
EP2333970B1 (en) 2009-12-10 2012-07-18 Telefonaktiebolaget L M Ericsson (publ) Technique for determining a cell-identity
CN102783120B (zh) * 2009-12-17 2015-07-01 马维尔国际贸易有限公司 用于交叉极化天线的mimo反馈方案
DE202011111016U1 (de) 2010-01-07 2018-05-02 Marvell World Trade Ltd. Signalisierung von dedizierten Referenzsignal (DRS) - Vorcodierungsgranularität
CN104301014B (zh) 2010-01-08 2017-11-28 华为技术有限公司 信道状态信息上报方法及装置
KR101754970B1 (ko) 2010-01-12 2017-07-06 삼성전자주식회사 무선 통신 시스템의 채널 상태 측정 기준신호 처리 장치 및 방법
US9148205B2 (en) * 2010-01-25 2015-09-29 Qualcomm Incorporated Feedback for supporting SU-MIMO and MU-MIMO operation in wireless communication
US8614981B2 (en) 2010-01-29 2013-12-24 Qualcomm Incorporated Reporting of channel information to support coordinated multi-point data transmission
KR101567018B1 (ko) 2010-02-09 2015-11-06 삼성전자주식회사 네트워크 백홀 환경 및 기지국 협력 수준 기반 ｍｉｍｏ／ｄｓｍ 동작 모드 결정 시스템
KR101760073B1 (ko) 2010-02-10 2017-07-20 마벨 월드 트레이드 리미티드 무선 통신들을 위한 송신 보호
JP5258002B2 (ja) 2010-02-10 2013-08-07 マーベル ワールド トレード リミテッド Ｍｉｍｏ通信システムにおける装置、移動通信端末、チップセット、およびその方法
KR20110111855A (ko) 2010-04-05 2011-10-12 주식회사 팬택 채널상태정보 피드백 장치와 그 방법, 기지국
CN102725967B (zh) 2010-04-07 2015-08-05 上海贝尔股份有限公司 用于信息反馈以及预编码的方法和装置
US20110250919A1 (en) 2010-04-13 2011-10-13 Qualcomm Incorporated Cqi estimation in a wireless communication network
US8848817B2 (en) 2010-04-30 2014-09-30 Texas Instruments Incorporated Transmission modes and signaling for uplink MIMO support or single TB dual-layer transmission in LTE uplink
KR101843019B1 (ko) 2010-04-30 2018-03-29 삼성전자주식회사 여러 리포팅 모드를 지원하는 다중 입출력 통신 시스템
EP2391081B1 (en) 2010-05-25 2013-01-02 Telefonaktiebolaget L M Ericsson (PUBL) Technique for cell signature determination
US8520576B2 (en) * 2010-08-04 2013-08-27 Broadcom Corporation Explicit feedback format within single user, multiple user, multiple access, and/or MIMO wireless communications
US9509391B2 (en) * 2010-09-08 2016-11-29 Qualcomm Incorporated Sounding feedback schemes for very high throughput wireless systems
US9042841B2 (en) 2010-09-17 2015-05-26 Samsung Electronics Co., Ltd. System and method for PUCCH subband feedback signaling in a wireless network
JP2012100254A (ja) 2010-10-06 2012-05-24 Marvell World Trade Ltd Ｐｕｃｃｈフィードバックのためのコードブックサブサンプリング
US8908600B2 (en) * 2010-10-26 2014-12-09 Qualcomm Incorporated Channel state information feedback frame format and feedback rules for very high throughput wireless systems
US9130631B2 (en) * 2010-11-03 2015-09-08 Qualcomm Incorporated Beamforming feedback format
EP3113567B1 (en) 2011-02-11 2018-04-11 Interdigital Patent Holdings, Inc. Systems and methods for an enhanced control channel
US8750358B2 (en) * 2011-04-06 2014-06-10 Nec Laboratories America, Inc. Method for improving multiuser MIMO downlink transmissions
US8902921B2 (en) * 2011-08-16 2014-12-02 Mediatek Singapore Pte Ltd. Methods for inter-user interference indication feedback and usage in MU-MIMO wireless systems
US8923146B2 (en) * 2011-08-31 2014-12-30 Nokia Corporation Channel reservation procedure

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