BRPI0916983A2 - método e equipamento para dar suporte a mimo de multiusuário e de usuário único em um sistema de comunicação sem fio - Google Patents

método e equipamento para dar suporte a mimo de multiusuário e de usuário único em um sistema de comunicação sem fio

Info

Publication number
BRPI0916983A2
BRPI0916983A2 BRPI0916983A BRPI0916983A BRPI0916983A2 BR PI0916983 A2 BRPI0916983 A2 BR PI0916983A2 BR PI0916983 A BRPI0916983 A BR PI0916983A BR PI0916983 A BRPI0916983 A BR PI0916983A BR PI0916983 A2 BRPI0916983 A2 BR PI0916983A2
Authority
BR
Brazil
Prior art keywords
pampering
equipment
wireless communication
communication system
single user
Prior art date
Application number
BRPI0916983A
Other languages
English (en)
Inventor
Prasad Malladi Durga
Hou Jilei
E Smee John
Hassanpour Ghady Navid
Mallik Siddhartha
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of BRPI0916983A2 publication Critical patent/BRPI0916983A2/pt

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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
BRPI0916983A 2008-08-07 2009-08-07 método e equipamento para dar suporte a mimo de multiusuário e de usuário único em um sistema de comunicação sem fio BRPI0916983A2 (pt)

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
BRPI0916983A2 true BRPI0916983A2 (pt) 2018-01-16

Family

ID=41652880

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0916983A BRPI0916983A2 (pt) 2008-08-07 2009-08-07 método e equipamento para dar suporte a mimo de multiusuário e de usuário único em um sistema de comunicação sem fio

Country Status (13)

Country Link
US (1) US9755705B2 (pt)
EP (2) EP2717489B1 (pt)
JP (3) JP5628169B2 (pt)
KR (3) KR101322814B1 (pt)
CN (1) CN102113235B (pt)
AU (1) AU2009279485C1 (pt)
BR (1) BRPI0916983A2 (pt)
CA (1) CA2731510A1 (pt)
IL (1) IL210535A0 (pt)
MX (1) MX2011001436A (pt)
RU (1) RU2480909C2 (pt)
TW (2) TWI448096B (pt)
WO (1) WO2010017482A1 (pt)

Families Citing this family (86)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3093744B2 (ja) 1999-01-22 2000-10-03 日本鋼管株式会社 排煙脱硫装置
US11309943B2 (en) 2004-04-02 2022-04-19 Rearden, Llc System and methods for planned evolution and obsolescence of multiuser spectrum
US11451275B2 (en) 2004-04-02 2022-09-20 Rearden, Llc System and method for distributed antenna wireless communications
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)
US10425134B2 (en) 2004-04-02 2019-09-24 Rearden, Llc System and methods for planned evolution and obsolescence of multiuser spectrum
US8170081B2 (en) 2004-04-02 2012-05-01 Rearden, LLC. System and method for adjusting DIDO interference cancellation based on signal strength measurements
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
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
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
US11394436B2 (en) 2004-04-02 2022-07-19 Rearden, Llc System and method for distributed antenna wireless communications
US10749582B2 (en) 2004-04-02 2020-08-18 Rearden, Llc Systems and methods to coordinate transmissions in distributed wireless systems via user clustering
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
US8654815B1 (en) 2004-04-02 2014-02-18 Rearden, Llc System and method for distributed antenna wireless communications
US10886979B2 (en) 2004-04-02 2021-01-05 Rearden, Llc System and method for link adaptation in DIDO multicarrier systems
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
US8571086B2 (en) 2004-04-02 2013-10-29 Rearden, Llc System and method for DIDO precoding interpolation in multicarrier systems
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
KR101578253B1 (ko) * 2008-08-12 2015-12-16 텔레호낙티에볼라게트 엘엠 에릭슨(피유비엘) 무선 통신 시스템에서의 니어 컴패니언 모드
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
US8582678B2 (en) * 2008-12-12 2013-11-12 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
KR101487073B1 (ko) 2010-04-12 2015-01-28 엘지전자 주식회사 다중 노드 시스템에서 단말의 피드백 정보 전송 방법 및 장치
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
WO2011159072A2 (ko) * 2010-06-14 2011-12-22 엘지전자 주식회사 다중 노드 시스템에서 간섭 제거 방법 및 이러한 방법을 이용하는 단말
KR101931711B1 (ko) 2010-06-14 2018-12-24 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
CN103081371B (zh) * 2010-09-03 2016-02-03 富士通株式会社 Mimo通信网络中的方法和用户设备、无线通信系统
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
EP2664177A1 (en) * 2011-01-10 2013-11-20 Nokia Solutions and Networks Oy Dynamic transmission set indication
CN103703694B (zh) 2011-02-01 2016-09-28 黑莓有限公司 下行链路多用户干扰对齐方案
EP2671333B1 (en) 2011-02-01 2019-04-10 BlackBerry Limited Mixed rank downlink compound multi-user interference alignment scheme
US9331765B2 (en) 2011-02-01 2016-05-03 Blackberry Limited Mixed rank downlink 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
SG10201601953SA (en) * 2011-09-14 2016-04-28 Rearden Llc Systems and methods to exploit areas of coherence in wireless systems
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
US9614599B2 (en) 2012-08-03 2017-04-04 Agency For Science, Technology And Research 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
WO2014046273A1 (en) 2012-09-18 2014-03-27 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
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
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
WO2014088271A1 (ko) * 2012-12-09 2014-06-12 엘지전자 주식회사 다중 셀 협력 통신 시스템에서 신호 송수신하는 방법 및 이를 위한 장치
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
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
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
RU2767777C2 (ru) 2013-03-15 2022-03-21 Риарден, Ллк Системы и способы радиочастотной калибровки с использованием принципа взаимности каналов в беспроводной связи с распределенным входом - распределенным выходом
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
US9735818B2 (en) 2013-10-28 2017-08-15 Lg Electronics Inc. Method and apparatus for cancelling interference and receiving signal in wireless communication system
US11290162B2 (en) 2014-04-16 2022-03-29 Rearden, Llc Systems and methods for mitigating interference within actively used spectrum
CN107210811B (zh) * 2015-01-16 2021-05-11 梁平 用于分布式大规模mimo(dm-mimo)的方法
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
JP7203357B2 (ja) * 2017-07-24 2023-01-13 パナソニックＩｐマネジメント株式会社 送信機および送信方法
US11489559B2 (en) 2018-03-08 2022-11-01 Cohere Technologies, Inc. Scheduling multi-user MIMO transmissions in fixed wireless access 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
CN113169764B (zh) 2018-11-27 2024-11-19 艾斯康实验室公司 非相干协作式多输入多输出通信
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
EP4047978A4 (en) * 2019-11-12 2023-03-08 Huawei Technologies Co., Ltd. METHOD OF OBTAINING CHANNEL INFORMATION
CN115428513A (zh) 2020-04-15 2022-12-02 艾斯康实验室公司 无线网络多点关联性和多路径
CA3178604A1 (en) 2020-05-26 2021-12-02 XCOM Labs, Inc. Interference-aware beamforming
WO2022093988A1 (en) 2020-10-30 2022-05-05 XCOM Labs, Inc. Clustering and/or rate selection in multiple-input multiple-output communication systems
EP4264852A4 (en) 2020-12-16 2025-02-05 Xcom Labs, Inc. WIRELESS COMMUNICATION WITH QUASI-OMNI AND DIRECTED BEAMS
WO2022268297A1 (en) * 2021-06-22 2022-12-29 Huawei Technologies Co., Ltd. Devices and methods for sounding for coordinated beamforming
US12489500B2 (en) 2022-03-17 2025-12-02 Qualcomm Incorporated In-network distributed processing for precoding and linear detection

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
JP2005538574A (ja) * 2001-10-03 2005-12-15 エクストリームスペクトラム，インコーポレイテッド メディア・アクセス・コントローラの動作方法
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
EP1625710B1 (en) * 2003-05-16 2008-02-27 Matsushita Electric Industrial Co., Ltd. Medium access control in master-slave systems
US8705659B2 (en) 2003-11-06 2014-04-22 Apple Inc. Communication channel optimization systems and methods in multi-user communication systems
JP4401390B2 (ja) * 2003-11-07 2010-01-20 シャープ株式会社 ネットワークコーディネートのための方法およびシステム
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
WO2006049415A1 (en) * 2004-11-01 2006-05-11 Electronics And Telecommunications Research Institute Radio communications 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
JP4840608B2 (ja) * 2005-03-28 2011-12-21 日本電気株式会社 Ｍｉｍｏデコーダ及びｍｉｍｏ復号法
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
ATE376728T1 (de) * 2005-07-05 2007-11-15 Alcatel Lucent Basisstation und verfahren zur zuweisung von hs- dsch kanalisierungskodes in einem drahtlosen kommunikationssystem
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
EP1966908A4 (en) 2005-12-08 2011-10-05 Ericsson Telefon Ab L M MIMO WIRELESS COMMUNICATION SYSTEM WITH REPEATERS
US20080096488A1 (en) 2005-12-26 2008-04-24 Samsung Electronics Co., Ltd. Apparatus and method for transmitting and receiving data in a communication system
JP2007228029A (ja) 2006-02-21 2007-09-06 Fujitsu Ltd 無線通信システム及び受信装置
CN101336523A (zh) 2006-03-20 2008-12-31 富士通株式会社 基站及其mimo-ofdm通信方法
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
US20100135366A1 (en) * 2006-12-28 2010-06-03 Nec Corporation Data equalisation in a communication receiver with receive diversity
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
KR100991792B1 (ko) 2007-12-31 2010-11-04 엘지전자 주식회사 협력적 다중 입출력 방식 신호 송수신 방법
KR101402305B1 (ko) * 2008-01-21 2014-06-30 삼성전자주식회사 다중입출력 시스템에서 격자축소행렬을 이용한 송신심볼검출방법 및 그 장치
US8140098B2 (en) 2008-05-15 2012-03-20 Qualcomm Incorporated Spatial interference mitigation 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
EP2717489B1 (en) 2019-12-25
JP5628169B2 (ja) 2014-11-19
KR20120114374A (ko) 2012-10-16
AU2009279485B2 (en) 2013-09-26
US9755705B2 (en) 2017-09-05
AU2009279485C1 (en) 2014-04-10
TWI448096B (zh) 2014-08-01
IL210535A0 (en) 2011-03-31
KR101322814B1 (ko) 2013-10-28
CA2731510A1 (en) 2010-02-11
CN102113235A (zh) 2011-06-29
KR20110039490A (ko) 2011-04-18
JP2011530893A (ja) 2011-12-22
US20100034146A1 (en) 2010-02-11
CN102113235B (zh) 2014-12-17
KR101322812B1 (ko) 2013-10-28
RU2480909C2 (ru) 2013-04-27
WO2010017482A1 (en) 2010-02-11
AU2009279485A1 (en) 2010-02-11
MX2011001436A (es) 2011-03-15
EP2347525A1 (en) 2011-07-27
RU2011108544A (ru) 2012-09-20
TW201012099A (en) 2010-03-16
TWI530110B (zh) 2016-04-11
TW201312957A (zh) 2013-03-16
EP2347525B1 (en) 2014-12-31
KR101259456B1 (ko) 2013-04-30
EP2717489A1 (en) 2014-04-09
JP2014161064A (ja) 2014-09-04
JP2016213861A (ja) 2016-12-15
HK1158843A1 (en) 2012-07-20
KR20120114375A (ko) 2012-10-16

Similar Documents

Publication Publication Date Title
BRPI0917524A2 (pt) método e equipamento para suportar mimo distríbuido em um sistema de comunicação sem fio
BRPI0916584A2 (pt) sistema e método para múltiplas-entradas e múltiplas-saídas (mimo) distribuídas em um sistema de comunicação sem fio
EP2223387A4 (en) METHOD AND DEVICE FOR WIRELESS COMMUNICATION USING MULTIPLE INPUT MULTIPLE OUTPUT TECHNIQUES
EP2494704A4 (en) Methods and apparatus for multi-user mimo transmissions in wireless communication systems
EP2371153A4 (en) METHOD AND SYSTEM FOR PROVIDING WIRELESS COMMUNICATION BETWEEN USER EQUIPMENT
EP2560296A4 (en) METHOD AND DEVICE FOR EFFICIENT FEEDBACK IN A WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE ANTENNAS
IL210535A0 (en) Method and apparatus for supporting multi-user and single-user mimo in a wireless communication system
EP2704471A4 (en) METHOD FOR THE DISPOSAL OF MDT IN A WIRELESS COMMUNICATION SYSTEM AND DEVICE FOR CARRYING OUT THE METHOD
PL3179665T3 (pl) Sposób w systemie komunikacji bezprzewodowej
BRPI0917495A2 (pt) portadora ancora em um sistema de comunicacoa sem fio de multipla portadora
BRPI0821989A2 (pt) método e equipamento para sincronização e detecção em sistemas de comunicação sem fio
BRPI0920389A2 (pt) métodos e equipamento para seleção de sistema em aparelho sem fio multimodo
PL3174221T3 (pl) Sposób i układ w bezprzewodowym systemie komunikacji
BRPI0906977A2 (pt) Operação em tdd em sistemas de comunicação sem fio
EP2346295A4 (en) COMMUNICATION SYSTEM AND MOBILE STATION
IL205532A0 (en) Methods and apparatus for providing an efficient frame structure for wireless communication systems
PT2119030T (pt) Método e configuração num sistema de comunicações sem fios
PT3397009T (pt) Métodos e dispositivos numa rede de comunicações
BRPI0810989A2 (pt) Método e equipamento para sondagem em um sistema de comunicação sem fio
EP2612282A4 (en) ADVERTISING METHOD AND DEVICE FOR A WIRELESS COMMUNICATION SYSTEM
EP2321917A4 (en) METHOD AND SYSTEM FOR COMMUNICATION BETWEEN WIRELESS DEVICES
HUE041539T2 (hu) Eljárás és elrendezés vezeték nélküli kommunikációs hálózatban
PL2294857T3 (pl) Sposób i konfiguracja w systemie telekomunikacyjnym
GB2468800B (en) Wireless network communications system and method
EP2328371A4 (en) WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION SYSTEM

Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]
B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]