HK1158843A1 - Method and apparatus for supporting multi-user and single-user mimo in a wireless communication system - Google Patents

Method and apparatus for supporting multi-user and single-user mimo in a wireless communication system

Info

Publication number
HK1158843A1
HK1158843A1 HK11111035.1A HK11111035A HK1158843A1 HK 1158843 A1 HK1158843 A1 HK 1158843A1 HK 11111035 A HK11111035 A HK 11111035A HK 1158843 A1 HK1158843 A1 HK 1158843A1
Authority
HK
Hong Kong
Prior art keywords
user
wireless communication
communication system
supporting multi
mimo
Prior art date
Application number
HK11111035.1A
Other languages
English (en)
Chinese (zh)
Inventor
侯紀磊
約翰‧
‧斯米
杜爾加‧普拉薩德‧馬拉迪
納維德‧哈桑普爾加迪
西達爾塔‧馬利克
Original Assignee
高通股份有限公司
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 高通股份有限公司 filed Critical 高通股份有限公司
Publication of HK1158843A1 publication Critical patent/HK1158843A1/xx

Links

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
    • H04B7/0413—MIMO systems
    • H04B7/0417—Feedback 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
    • H04B7/0413—MIMO systems
    • H04B7/0452—Multi-user 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
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • 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
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0204—Channel estimation of multiple channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
HK11111035.1A 2008-08-07 2011-10-17 Method and apparatus for supporting multi-user and single-user mimo in a wireless communication system HK1158843A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US8706308P 2008-08-07 2008-08-07
US8706608P 2008-08-07 2008-08-07
US8792208P 2008-08-11 2008-08-11
US12/536,366 US9755705B2 (en) 2008-08-07 2009-08-05 Method and apparatus for supporting multi-user and single-user MIMO in a wireless communication system
PCT/US2009/053162 WO2010017482A1 (en) 2008-08-07 2009-08-07 Method and apparatus for supporting multi-user and single-user mimo in a wireless communication system

Publications (1)

Publication Number Publication Date
HK1158843A1 true HK1158843A1 (en) 2012-07-20

Family

ID=41652880

Family Applications (1)

Application Number Title Priority Date Filing Date
HK11111035.1A HK1158843A1 (en) 2008-08-07 2011-10-17 Method and apparatus for supporting multi-user and single-user mimo in a wireless communication system

Country Status (14)

Country Link
US (1) US9755705B2 (xx)
EP (2) EP2717489B1 (xx)
JP (3) JP5628169B2 (xx)
KR (3) KR101322814B1 (xx)
CN (1) CN102113235B (xx)
AU (1) AU2009279485C1 (xx)
BR (1) BRPI0916983A2 (xx)
CA (1) CA2731510A1 (xx)
HK (1) HK1158843A1 (xx)
IL (1) IL210535A0 (xx)
MX (1) MX2011001436A (xx)
RU (1) RU2480909C2 (xx)
TW (2) TWI530110B (xx)
WO (1) WO2010017482A1 (xx)

Families Citing this family (82)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8654815B1 (en) 2004-04-02 2014-02-18 Rearden, Llc System and method for distributed antenna wireless communications
US10187133B2 (en) 2004-04-02 2019-01-22 Rearden, Llc System and method for power control and antenna grouping in a distributed-input-distributed-output (DIDO) network
US10749582B2 (en) 2004-04-02 2020-08-18 Rearden, Llc Systems and methods to coordinate transmissions in distributed wireless systems via user clustering
US9819403B2 (en) 2004-04-02 2017-11-14 Rearden, Llc System and method for managing handoff of a client between different distributed-input-distributed-output (DIDO) networks based on detected velocity of the client
US11394436B2 (en) 2004-04-02 2022-07-19 Rearden, Llc System and method for distributed antenna wireless communications
US11309943B2 (en) 2004-04-02 2022-04-19 Rearden, Llc System and methods for planned evolution and obsolescence of multiuser spectrum
US10886979B2 (en) 2004-04-02 2021-01-05 Rearden, Llc System and method for link adaptation in DIDO multicarrier systems
US10200094B2 (en) 2004-04-02 2019-02-05 Rearden, Llc Interference management, handoff, power control and link adaptation in distributed-input distributed-output (DIDO) communication systems
US9312929B2 (en) 2004-04-02 2016-04-12 Rearden, Llc System and methods to compensate for Doppler effects in multi-user (MU) multiple antenna systems (MAS)
US10277290B2 (en) 2004-04-02 2019-04-30 Rearden, Llc Systems and methods to exploit areas of coherence in wireless systems
US10985811B2 (en) 2004-04-02 2021-04-20 Rearden, Llc System and method for distributed antenna wireless communications
US8571086B2 (en) 2004-04-02 2013-10-29 Rearden, Llc System and method for DIDO precoding interpolation in multicarrier systems
US11451275B2 (en) 2004-04-02 2022-09-20 Rearden, Llc System and method for distributed antenna wireless communications
US8170081B2 (en) 2004-04-02 2012-05-01 Rearden, LLC. System and method for adjusting DIDO interference cancellation based on signal strength measurements
US10425134B2 (en) 2004-04-02 2019-09-24 Rearden, Llc System and methods for planned evolution and obsolescence of multiuser spectrum
US8542763B2 (en) 2004-04-02 2013-09-24 Rearden, Llc Systems and methods to coordinate transmissions in distributed wireless systems via user clustering
US9826537B2 (en) 2004-04-02 2017-11-21 Rearden, Llc System and method for managing inter-cluster handoff of clients which traverse multiple DIDO clusters
US9685997B2 (en) 2007-08-20 2017-06-20 Rearden, Llc Systems and methods to enhance spatial diversity in distributed-input distributed-output wireless systems
US8989155B2 (en) 2007-08-20 2015-03-24 Rearden, Llc Systems and methods for wireless backhaul in distributed-input distributed-output wireless systems
US9294160B2 (en) * 2008-08-11 2016-03-22 Qualcomm Incorporated Method and apparatus for supporting distributed MIMO in a wireless communication system
CN101651880B (zh) * 2008-08-11 2013-12-25 株式会社Ntt都科摩 多小区协作发送方法
WO2010018437A1 (en) * 2008-08-12 2010-02-18 Telefonaktiebolaget Lm Ericsson (Publ) Near companion mode in a wireless communication system
US8396162B2 (en) * 2008-11-03 2013-03-12 Motorola Mobility Llc Method and apparatus for choosing a modulation and coding rate in a multi-user, MIMO communication system
EP2197125B1 (en) * 2008-12-12 2018-07-25 Electronics and Telecommunications Research Institute Communication system using multi-user multiple input multiple output (mu-mimo) communication scheme
US8199708B2 (en) * 2008-12-30 2012-06-12 Telefonaktiebolaget L M Ericsson (Publ) Allocation of uplink reference signals in a mobile communication system
KR101629325B1 (ko) * 2009-06-03 2016-06-13 엘지전자 주식회사 부분 주파수 재사용 방식을 이용하는 무선 통신 시스템에서 채널 상태를 추정하는 방법 및 이를 이용하는 단말 장치
US9042331B2 (en) * 2009-09-09 2015-05-26 Lg Electronics Inc. Method and apparatus for transmitting control information in WLAN system
US8594688B2 (en) * 2009-12-09 2013-11-26 Qualcomm Incorporated Method and system for rate prediction in coordinated multi-point transmission
BR112012014360A2 (pt) * 2009-12-14 2019-09-24 Thomson Licensing método e aparelho para detecção de transmissores para um dispositivo de espaço branco.
EP2525504A4 (en) * 2010-01-13 2015-07-22 Alcatel Lucent METHOD AND EQUIPMENT FOR MIMO CHANNEL INFORMATION FEEDBACK IN MULTIPLE CELLS
JP5466034B2 (ja) * 2010-02-15 2014-04-09 京セラ株式会社 無線基地局及び通信制御方法
US9048907B2 (en) 2010-03-10 2015-06-02 Alcatel Lucent Methods for reducing interference in communication systems
KR101636029B1 (ko) * 2010-03-23 2016-07-20 삼성전자주식회사 다중 셀 다중 안테나 시스템에서 레이트 스플리팅 기법을 사용하기 위한 빔포밍 방법 및 장치
US9356662B2 (en) 2010-04-12 2016-05-31 Lg Electronics Inc. Method and apparatus for transmitting feedback information of a terminal in a multi-node system
US8995401B2 (en) * 2010-05-14 2015-03-31 Alcatel Lucent Multiple antenna method and apparatus for reducing inter-cell interference in multi-user wireless systems
KR101931711B1 (ko) 2010-06-14 2018-12-24 엘지전자 주식회사 다중 노드 시스템에서 간섭 제거 방법 및 이러한 방법을 이용하는 단말
WO2011159072A2 (ko) * 2010-06-14 2011-12-22 엘지전자 주식회사 다중 노드 시스템에서 간섭 제거 방법 및 이러한 방법을 이용하는 단말
US9025510B2 (en) 2010-06-28 2015-05-05 Lg Electronics Inc. Method for eliminating interference in multi-node system and terminal using method thereof
CN102377528B (zh) * 2010-08-06 2015-07-08 华为技术有限公司 协作通信系统中的数据传输方法、发射端及接收端
EP2612448B1 (en) * 2010-09-03 2016-08-24 Fujitsu Limited Channel state feedback for multi-cell mimo
US9509391B2 (en) 2010-09-08 2016-11-29 Qualcomm Incorporated Sounding feedback schemes for very high throughput wireless systems
JP5487090B2 (ja) * 2010-12-03 2014-05-07 株式会社日立製作所 無線信号処理方法および無線通信装置
US8472550B2 (en) * 2010-12-23 2013-06-25 Mitsubishi Electric Research Laboratories, Inc. Method for reducing interference in multi-cell multi-user wireless networks
US9713126B2 (en) * 2011-01-10 2017-07-18 Nokia Solutions And Networks Oy Dynamic transmission set indication
EP2671332B1 (en) * 2011-02-01 2019-10-23 BlackBerry Limited Mixed rank downlink multi-user interference alignment scheme
CA2826085C (en) 2011-02-01 2017-03-07 Research In Motion Limited Downlink multi-user interference alignment scheme
US8929493B2 (en) 2011-02-01 2015-01-06 Blackberry Limited Mixed rank downlink compound multi-user interference alignment scheme
WO2013036091A2 (en) * 2011-09-09 2013-03-14 Samsung Electronics Co., Ltd. Method and apparatus for opportunistic user scheduling of two-cell multiple user mimo
CN108832971A (zh) * 2011-09-14 2018-11-16 李尔登公司 在无线系统中利用同调性区域的系统及方法
WO2013091148A1 (en) * 2011-12-23 2013-06-27 Telefonaktiebolaget L M Ericsson (Publ) Uplink power control for mu-mimo
US8964871B2 (en) * 2012-05-14 2015-02-24 Blackberry Limited Codebook based downlink multi-user interference alignment scheme
US8812039B2 (en) 2012-07-16 2014-08-19 Telefonaktiebolaget L M Ericsson (Publ) Method and system for reducing inter-cell interference using intra-ENB downlink coordinated multipoint services
SG196763A1 (en) 2012-08-03 2014-02-13 Agency Science Tech & Res A method for determining precoding matrixes for communication and a system therefrom
US9439096B2 (en) * 2012-08-13 2016-09-06 Samsung Electronics Co., Ltd. Method and apparatus to support channel refinement and multi-stream transmission in millimeter wave systems
US9473225B2 (en) 2012-09-18 2016-10-18 Nec Corporation Method for improving transmission capacity in a DL MU-MIMO communications system
KR101927157B1 (ko) 2012-10-15 2018-12-10 현대자동차 주식회사 차량용 조명장치
US11050468B2 (en) 2014-04-16 2021-06-29 Rearden, Llc Systems and methods for mitigating interference within actively used spectrum
US10194346B2 (en) 2012-11-26 2019-01-29 Rearden, Llc Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology
US11190947B2 (en) 2014-04-16 2021-11-30 Rearden, Llc Systems and methods for concurrent spectrum usage within actively used spectrum
US11189917B2 (en) 2014-04-16 2021-11-30 Rearden, Llc Systems and methods for distributing radioheads
US9768940B2 (en) * 2012-12-09 2017-09-19 Lg Electronics Inc. Method and device for transmitting and receiving signal in multi-cell cooperative communication system
US10164698B2 (en) 2013-03-12 2018-12-25 Rearden, Llc Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology
US9973246B2 (en) 2013-03-12 2018-05-15 Rearden, Llc Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology
US9923657B2 (en) 2013-03-12 2018-03-20 Rearden, Llc Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology
US10488535B2 (en) 2013-03-12 2019-11-26 Rearden, Llc Apparatus and method for capturing still images and video using diffraction coded imaging techniques
US10547358B2 (en) 2013-03-15 2020-01-28 Rearden, Llc Systems and methods for radio frequency calibration exploiting channel reciprocity in distributed input distributed output wireless communications
EP2824986B1 (en) * 2013-07-11 2023-03-22 Fujitsu Limited Buffer status reporting in small cell networks
US9214970B2 (en) * 2013-10-15 2015-12-15 Alcatel Lucent Method of receiving a signal in a wireless communication network and associated network elements
WO2015064976A2 (ko) 2013-10-28 2015-05-07 엘지전자 주식회사 무선 통신 시스템에서 간섭을 제거하고 신호를 수신하는 방법 및 장치
US11290162B2 (en) 2014-04-16 2022-03-29 Rearden, Llc Systems and methods for mitigating interference within actively used spectrum
WO2016115546A1 (en) * 2015-01-16 2016-07-21 Ping Liang Beamforming in a mu-mimo wireless communication system
JP2018133700A (ja) 2017-02-15 2018-08-23 株式会社Ｎｔｔドコモ 無線基地局及び無線通信方法
US11438910B2 (en) 2017-07-24 2022-09-06 Panasonic Intellectual Property Management Co., Ltd. Transmitter and transmission method
EP3763050A4 (en) * 2018-03-08 2021-11-24 Cohere Technologies, Inc. PLANNING MULTI-USER MIMO TRANSMISSIONS IN FIXED WIRELESS COMMUNICATION SYSTEMS
KR102118389B1 (ko) * 2018-06-27 2020-06-03 에스케이텔레콤 주식회사 기지국장치 및 기지국장치의 동작 방법
KR102158206B1 (ko) * 2018-11-14 2020-09-22 고려대학교 산학협력단 하이브리드 빔포머 필터 설계 장치 및 방법
EP3888256A4 (en) 2018-11-27 2022-08-31 Xcom Labs, Inc. MULTIPLE INPUT AND INCOHERENT COOPERATIVE MULTIPLE OUTPUT COMMUNICATIONS
US10771128B1 (en) 2019-06-24 2020-09-08 Sprint Communcations Company L.P. Multi-User Multiple Input Multiple Output (MU-MIMO) user equipment (UE) grouping with geographic correlation factors
CN114642019B (zh) * 2019-11-12 2023-12-08 华为技术有限公司 一种信道信息获取的方法
KR20230015932A (ko) 2020-05-26 2023-01-31 엑스콤 랩스 인코퍼레이티드 간섭-인식 빔포밍
WO2022093988A1 (en) 2020-10-30 2022-05-05 XCOM Labs, Inc. Clustering and/or rate selection in multiple-input multiple-output communication systems
EP4197108A1 (en) * 2021-06-22 2023-06-21 Huawei Technologies Co., Ltd. Devices and methods for sounding for coordinated beamforming

Family Cites Families (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3446304A1 (de) * 1984-12-19 1986-07-10 Degussa Ag, 6000 Frankfurt Verfahren zur gewinnung von phenylalanin-dehydrogenase enthaltenden mikroorganismen, mikroorganismen, die in ihnen enthaltene phenylalanin-dehydrogenase und deren verwendung zur herstellung von l-(alpha)-aminosaeuren
RU2209526C2 (ru) 1999-01-14 2003-07-27 Корпорация "Самсунг Электроникс" Способ и устройство когерентного приема в обратном канале cdma по is-95
KR100735402B1 (ko) 2000-11-07 2007-07-04 삼성전자주식회사 비동기 이동통신시스템에서 하향 공유 채널에 사용하는 송신 형식 결합 지시기의 전송 장치 및 방법
JP2002232353A (ja) 2001-01-30 2002-08-16 Ntt Docomo Inc 移動通信システム及び送信電力制御方法、並びに移動局装置及びその受信信号処理方法
US6751187B2 (en) 2001-05-17 2004-06-15 Qualcomm Incorporated Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel transmission
AU2002362420A1 (en) * 2001-10-03 2003-04-14 Xtremespectrum, Inc. Method of operating a media access controller
US20030125040A1 (en) 2001-11-06 2003-07-03 Walton Jay R. Multiple-access multiple-input multiple-output (MIMO) communication system
KR100464014B1 (ko) * 2002-03-21 2004-12-30 엘지전자 주식회사 다중 입출력 이동 통신 시스템에서의 폐루프 신호 처리 방법
JP2003304577A (ja) 2002-04-11 2003-10-24 Hitachi Ltd 無線通信方法、無線基地局装置、および端末装置
US7010644B2 (en) 2002-08-29 2006-03-07 Micron Technology, Inc. Software refreshed memory device and method
US8208364B2 (en) * 2002-10-25 2012-06-26 Qualcomm Incorporated MIMO system with multiple spatial multiplexing modes
US20040176097A1 (en) 2003-02-06 2004-09-09 Fiona Wilson Allocation of sub channels of MIMO channels of a wireless network
CN100456727C (zh) * 2003-05-16 2009-01-28 松下电器产业株式会社 在主从系统中的媒体访问控制
US8705659B2 (en) 2003-11-06 2014-04-22 Apple Inc. Communication channel optimization systems and methods in multi-user communication systems
JP2007516662A (ja) * 2003-11-07 2007-06-21 シャープ株式会社 ネットワークチャンネルの特性値の測定およびネットワーク管理のシステムおよび方法
JP3947166B2 (ja) 2004-01-09 2007-07-18 株式会社東芝 通信システム、通信装置および通信方法
US7664130B2 (en) * 2004-03-01 2010-02-16 Sony Corporation Wireless communication system, wireless communication apparatus, wireless communication method and computer program
US7738423B2 (en) 2004-07-09 2010-06-15 Alcatel-Lucent Usa Inc. Cell switching and packet combining in a wireless communication system
US7064665B2 (en) 2004-07-13 2006-06-20 Raytheon Company Pseudo—random state mechanical switch
US7826475B2 (en) * 2004-11-01 2010-11-02 Electronics And Telecommunications Research Institute Radio communication system, radio communication apparatus and radio communication method for UWB impulse communication
US7428268B2 (en) 2004-12-07 2008-09-23 Adaptix, Inc. Cooperative MIMO in multicell wireless networks
CN100373811C (zh) 2004-12-10 2008-03-05 电子科技大学 一种分布式多入多出系统的信号检测方法
US7830988B2 (en) * 2005-03-28 2010-11-09 Nec Corporation MIMO decoder and MIMO decoding method
US7702355B2 (en) 2005-04-14 2010-04-20 Telefonaktiebolaget L M Ericsson (Publ) Cell selection in broadcast and multicast communication environments
US7768979B2 (en) 2005-05-18 2010-08-03 Qualcomm Incorporated Separating pilot signatures in a frequency hopping OFDM system by selecting pilot symbols at least hop away from an edge of a hop region
EP1742403B1 (en) * 2005-07-05 2007-10-24 Alcatel Lucent Base station and method for allocating HS-DSCH channelisation codes in a wireless communication system
US9184898B2 (en) 2005-08-01 2015-11-10 Google Technology Holdings LLC Channel quality indicator for time, frequency and spatial channel in terrestrial radio access network
KR100973726B1 (ko) 2005-09-22 2010-08-04 캔트릴 텔레콤 코. 엘엘씨 이동 무선 시스템에서 최적화된 수의 가입자 선택 방법
WO2007043459A1 (ja) 2005-10-07 2007-04-19 Nec Corporation 複数の基地局と移動局によるｍｉｍｏ無線通信システム及び方法
US8760994B2 (en) 2005-10-28 2014-06-24 Qualcomm Incorporated Unitary precoding based on randomized FFT matrices
WO2007067107A1 (en) 2005-12-08 2007-06-14 Telefonaktiebolaget Lm Ericsson (Publ) A wireless communication mimo system with repeaters
KR20070068300A (ko) 2005-12-26 2007-06-29 삼성전자주식회사 통신 시스템에서 데이터 송수신 장치 및 방법
JP2007228029A (ja) 2006-02-21 2007-09-06 Fujitsu Ltd 無線通信システム及び受信装置
EP1998484B1 (en) 2006-03-20 2019-01-02 Fujitsu Limited Base station and its mimo-ofdm communication method
KR100951381B1 (ko) 2006-08-10 2010-04-08 삼성전자주식회사 다중 사용자 환경의 다중 입력 다중 출력 시스템에서 낮은복잡도를 가지는 스케쥴링 장치 및 방법
JP4734210B2 (ja) 2006-10-04 2011-07-27 富士通株式会社 無線通信方法
KR100971620B1 (ko) * 2006-11-14 2010-07-22 삼성전자주식회사 다중 사용자 다중 안테나 통신시스템의 송ㆍ수신기,송ㆍ수신방법 및 부반송파 구조
JP2010515288A (ja) * 2006-12-28 2010-05-06 日本電気株式会社 受信ダイバーシチを有する通信受信機におけるデータ等化方法
US8000419B2 (en) * 2007-04-10 2011-08-16 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for cancellation of partially known interference using transmit diversity based interference cancellation
US8213368B2 (en) 2007-07-13 2012-07-03 Telefonaktiebolaget Lm Ericsson (Publ) Adaptive compression of channel feedback based on second order channel statistics
JP2009159585A (ja) 2007-12-07 2009-07-16 Panasonic Corp 異種無線通信システム間における干渉抑圧方法、基地局連携干渉抑圧システム及び移動通信システム
KR100991793B1 (ko) 2007-12-31 2010-11-03 엘지전자 주식회사 셀간 간섭 감소 방법
KR101402305B1 (ko) * 2008-01-21 2014-06-30 삼성전자주식회사 다중입출력 시스템에서 격자축소행렬을 이용한 송신심볼검출방법 및 그 장치
US8447236B2 (en) 2008-05-15 2013-05-21 Qualcomm Incorporated Spatial interference mitigation schemes for wireless communication
WO2010002772A2 (en) 2008-06-30 2010-01-07 Interdigital Patent Holdings, Inc. Method and apparatus for signaling precoding vectors
CN101645729A (zh) 2008-08-08 2010-02-10 夏普株式会社 下行蜂窝系统的多天线多基站合作方法及基站
US9294160B2 (en) 2008-08-11 2016-03-22 Qualcomm Incorporated Method and apparatus for supporting distributed MIMO in a wireless communication system
US8665806B2 (en) 2008-12-09 2014-03-04 Motorola Mobility Llc Passive coordination in a closed loop multiple input multiple out put wireless communication system

Also Published As

Publication number Publication date
KR20120114375A (ko) 2012-10-16
AU2009279485B2 (en) 2013-09-26
RU2011108544A (ru) 2012-09-20
CN102113235B (zh) 2014-12-17
MX2011001436A (es) 2011-03-15
TW201012099A (en) 2010-03-16
AU2009279485C1 (en) 2014-04-10
TWI530110B (zh) 2016-04-11
TWI448096B (zh) 2014-08-01
JP2011530893A (ja) 2011-12-22
EP2347525A1 (en) 2011-07-27
EP2717489B1 (en) 2019-12-25
US20100034146A1 (en) 2010-02-11
CA2731510A1 (en) 2010-02-11
EP2717489A1 (en) 2014-04-09
JP2014161064A (ja) 2014-09-04
KR101322814B1 (ko) 2013-10-28
EP2347525B1 (en) 2014-12-31
TW201312957A (zh) 2013-03-16
KR20120114374A (ko) 2012-10-16
CN102113235A (zh) 2011-06-29
KR20110039490A (ko) 2011-04-18
RU2480909C2 (ru) 2013-04-27
IL210535A0 (en) 2011-03-31
JP5628169B2 (ja) 2014-11-19
JP2016213861A (ja) 2016-12-15
KR101322812B1 (ko) 2013-10-28
BRPI0916983A2 (pt) 2018-01-16
KR101259456B1 (ko) 2013-04-30
WO2010017482A1 (en) 2010-02-11
US9755705B2 (en) 2017-09-05
AU2009279485A1 (en) 2010-02-11

Similar Documents

Publication Publication Date Title
HK1158843A1 (en) Method and apparatus for supporting multi-user and single-user mimo in a wireless communication system
EP2494704A4 (en) Methods and apparatus for multi-user mimo transmissions in wireless communication systems
EP2404389A4 (en) METHOD AND DEVICE FOR ELIMINATING MULTICULTURAL INTERFERENCES IN A MULTI-ANTENNA SYSTEM
EP2297871A4 (en) APPARATUS AND METHOD FOR CANCELING INTERCELLULAR INTERFERENCE IN A MIMO WIRELESS COMMUNICATION SYSTEM
EP2464076A4 (en) METHOD AND APPARATUS FOR TRANSMITTING MULTI-USER MIMO REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM FOR RELAY ASSISTANCE
EP2223387A4 (en) METHOD AND DEVICE FOR WIRELESS COMMUNICATION USING MULTIPLE INPUT MULTIPLE OUTPUT TECHNIQUES
IL233294A (en) A method and system for providing effective pre-coding feedback in a multi-input, multi-input wireless communication system
EP2343838A4 (en) MIMO BASED COLLABORATIVE MULTIPLE BASE STATION COMMUNICATION PROCESS AND DEVICE
EP2622758A4 (en) METHOD AND APPARATUS FOR ASCERTAINING INFORMATION IN MULTIPLE INPUT MULTIPLE OUTPUT MULTI-USER COMMUNICATION SYSTEM (MU-MIMO)
EP2506450A4 (en) METHODS OF TRANSMITTING A FRAME IN A WIRELESS COMMUNICATION SYSTEM ON A MULTI-USER BASIS
IL194793A0 (en) Method and apparatus for implementing h-arq in a mimo wireless communication system
PT2375607E (pt) Método e aparelho para o controlo de retransmissões numa ligação ascendente, num sistema de comunicação sem fios suportando mimo
EP2352305A4 (en) WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION PROCESS
EP2274948A4 (en) DEVICE AND METHOD FOR UPLINK TRANSMISSION IN A WIRELESS COMMUNICATION SYSTEM
EP2506452A4 (en) METHOD FOR TRANSMITTING A REPLY FRAME AND A RESPONSE FRAME IN A WIRELESS MULTI-USER COMMUNICATION SYSTEM
HK1163387A1 (en) Apparatus and method for facilitating transmit diversity for communications
EP2496010A4 (en) METHOD FOR TRANSMITTING CONTROL AND TRAINING SYMBOLS IN A MULTI-USER WIRELESS COMMUNICATION SYSTEM
IL209148A0 (en) Method and apparatus for using virtual noise figure in a wireless communication network
HUE036113T2 (hu) Berendezés és eljárás ciklikus késleltetési diverzitáshoz és elõkódoláshoz vezeték nélküli kommunikációban
EP2443764A4 (en) Communication method and apparatus using codebook in mimo system
ZA201005923B (en) Apparatus and method for composing diversity subchannel in wireless communication system
PL3179665T3 (pl) Sposób w systemie komunikacji bezprzewodowej
EP2330765A4 (en) BASIC STATION, DEVICE, USER PLANT AND PRELIMINARY PROCESSING
GB0807506D0 (en) Communication method and apparatus
EP2374235A4 (en) METHOD AND APPARATUS FOR REALIZING HARQ IN A WIRELESS COMMUNICATION SYSTEM