ATE546890T1 - Mimo-kommunikationssystem mit benutzerkoordination nach reduzierten kanalstatusinformationen - Google Patents

Mimo-kommunikationssystem mit benutzerkoordination nach reduzierten kanalstatusinformationen

Info

Publication number
ATE546890T1
ATE546890T1 AT08742281T AT08742281T ATE546890T1 AT E546890 T1 ATE546890 T1 AT E546890T1 AT 08742281 T AT08742281 T AT 08742281T AT 08742281 T AT08742281 T AT 08742281T AT E546890 T1 ATE546890 T1 AT E546890T1
Authority
AT
Austria
Prior art keywords
terminals
channel vector
status information
communications system
channel status
Prior art date
Application number
AT08742281T
Other languages
English (en)
Inventor
Simon Borst
Philip Whiting
Original Assignee
Alcatel Lucent
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 Alcatel Lucent filed Critical Alcatel Lucent
Application granted granted Critical
Publication of ATE546890T1 publication Critical patent/ATE546890T1/de

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
    • H04B7/04—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
    • H04B7/0697—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 spatial multiplexing
    • 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
    • H04B7/0426—Power distribution
    • 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
    • H04B7/0426—Power distribution
    • H04B7/0434—Power distribution using multiple eigenmodes
    • H04B7/0443—Power distribution using multiple eigenmodes utilizing "waterfilling" technique
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
AT08742281T 2007-03-30 2008-03-26 Mimo-kommunikationssystem mit benutzerkoordination nach reduzierten kanalstatusinformationen ATE546890T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/694,443 US7801238B2 (en) 2007-03-30 2007-03-30 MIMO communication system with user scheduling based on reduced channel state information
PCT/US2008/003951 WO2008121283A1 (en) 2007-03-30 2008-03-26 Mimo communication system with user scheduling based on reduced channel state information

Publications (1)

Publication Number Publication Date
ATE546890T1 true ATE546890T1 (de) 2012-03-15

Family

ID=39577546

Family Applications (1)

Application Number Title Priority Date Filing Date
AT08742281T ATE546890T1 (de) 2007-03-30 2008-03-26 Mimo-kommunikationssystem mit benutzerkoordination nach reduzierten kanalstatusinformationen

Country Status (7)

Country Link
US (1) US7801238B2 (de)
EP (1) EP2143212B1 (de)
JP (1) JP4949513B2 (de)
CN (1) CN101657977B (de)
AT (1) ATE546890T1 (de)
TW (1) TW200847671A (de)
WO (1) WO2008121283A1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7035661B1 (en) * 1996-10-11 2006-04-25 Arraycomm, Llc. Power control with signal quality estimation for smart antenna communication systems
US7801238B2 (en) 2007-03-30 2010-09-21 Alcatel-Lucent Usa Inc. MIMO communication system with user scheduling based on reduced channel state information
US20090023467A1 (en) * 2007-07-18 2009-01-22 Kaibin Huang Method and apparatus for performing space division multiple access in a wireless communication network
US7929918B2 (en) 2007-08-13 2011-04-19 Samsung Electronics Co., Ltd. System and method for training the same type of directional antennas that adapts the training sequence length to the number of antennas
US8417191B2 (en) * 2008-03-17 2013-04-09 Samsung Electronics Co., Ltd. Method and system for beamforming communication in high throughput wireless communication systems
US8478204B2 (en) 2008-07-14 2013-07-02 Samsung Electronics Co., Ltd. System and method for antenna training of beamforming vectors having reuse of directional information
US8432821B2 (en) * 2008-10-02 2013-04-30 Qualcomm Incorporated Method and apparatus for cooperation strategy selection in a wireless communication system
KR20130025898A (ko) * 2010-04-02 2013-03-12 인터디지탈 패튼 홀딩스, 인크 Ｈｓｄｐａ 다중 사용자 ｍｉｍｏ 동작을 위한 시스템 및 방법
WO2011131210A1 (en) 2010-04-20 2011-10-27 Telecom Italia S.P.A. Method and system for wireless communications, corresponding network and computer
CN102130709B (zh) * 2011-04-20 2014-02-12 中国科学技术大学 一种多输入多输出多播波束赋形方法
EP2810508B1 (de) * 2012-01-30 2015-08-12 Telefonaktiebolaget LM Ericsson (Publ) Zeitmultiplexierte kanalstatusinformationsmeldung in einem drahtlosen mehrantennen-kommunikationssystem
CN103634079B (zh) * 2012-08-20 2017-02-08 上海贝尔股份有限公司 在无线异构通信网中优化无线链路监视窗口参数的方法
EP2896138B1 (de) * 2012-09-11 2018-10-31 Telefonaktiebolaget LM Ericsson (publ) Auffinden von kanalstatusinformationen mit reduziertem codebuch in einem drahtlosen kommunikationssystem mit mehreren antennen
US20150087237A1 (en) * 2013-09-26 2015-03-26 Alcatel-Lucent Usa Inc. Interference mitigation and signal enhancement in a wireless communication system
US9065498B1 (en) 2013-10-09 2015-06-23 Sprint Communications Company L.P. Dynamic assignment of MIMO modes for a wireless communication device
JP6852341B2 (ja) * 2016-10-06 2021-03-31 富士通株式会社 送信制御装置及び送信制御方法
CN106899338B (zh) * 2017-04-19 2021-03-16 北京工业大学 大规模mimo系统下行链路中基于密度的用户分组方法
US10785744B1 (en) * 2019-04-10 2020-09-22 Cisco Technology, Inc. Offloading location computation from cloud to access point (AP) with projection on base phase vectors

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60021772T2 (de) * 2000-04-07 2006-04-20 Nokia Corp. Verfahren und vorrichtung zur übertragung mit mehreren antennen
US7047016B2 (en) * 2001-05-16 2006-05-16 Qualcomm, Incorporated Method and apparatus for allocating uplink resources in a multiple-input multiple-output (MIMO) communication system
DE10132492A1 (de) * 2001-07-03 2003-01-23 Hertz Inst Heinrich Adaptives Signalverarbeitungsverfahren zur bidirektionalen Funkübertragung in einem MIMO-Kanal und MIMO-System zur Verfahrensdurchführung
US7020110B2 (en) * 2002-01-08 2006-03-28 Qualcomm Incorporated Resource allocation for MIMO-OFDM communication systems
US9049722B2 (en) * 2004-04-23 2015-06-02 Qualcomm Incorporated Methods and apparatus of enhancing performance in wireless communication systems
US20050265290A1 (en) * 2004-05-28 2005-12-01 Hochwald Bertrand M Feedback method for channel state information of a wireless link
US7536205B2 (en) * 2004-06-15 2009-05-19 Samsung Electronics Co., Ltd. Apparatus and method for downlink spatial division multiple access scheduling in a wireless network
EP1856156A2 (de) * 2005-02-08 2007-11-21 ZymoGenetics, Inc. Anti-il-20-, anti-il-22- und anti-il-22ra-antikörper und bindungspartner sowie verwendungsverfahren bei entzündungen
US8363603B2 (en) 2005-06-16 2013-01-29 Qualcomm Incorporated User separation in space division multiple access for a multi-carrier communication system
JP4776292B2 (ja) * 2005-07-14 2011-09-21 パナソニック株式会社 通信装置及び通信方法
US8738053B2 (en) * 2005-09-21 2014-05-27 Broadcom Corporation Method and system for finding a threshold for semi-orthogonal user group selection in multiuser MIMO downlink transmission
US7940640B2 (en) * 2006-01-20 2011-05-10 Nortel Networks Limited Adaptive orthogonal scheduling for virtual MIMO system
WO2007122727A1 (ja) * 2006-04-21 2007-11-01 Panasonic Corporation Ｍｉｍｏ受信装置およびｍｉｍｏ送信装置
US20080132173A1 (en) * 2006-11-30 2008-06-05 Korea Advanced Institute Of Science And Technology Channel estimation apparatus and channel estimation method
US7801238B2 (en) 2007-03-30 2010-09-21 Alcatel-Lucent Usa Inc. MIMO communication system with user scheduling based on reduced channel state information
US7907552B2 (en) * 2008-01-15 2011-03-15 Alcatel-Lucent Usa Inc. MIMO communication system with user scheduling and modified precoding based on channel vector magnitudes
US8249204B2 (en) * 2008-07-11 2012-08-21 Industrial Technology Research Institute Apparatus and method for channel state information feedback

Also Published As

Publication number Publication date
WO2008121283A1 (en) 2008-10-09
JP4949513B2 (ja) 2012-06-13
CN101657977B (zh) 2013-09-18
US20080242309A1 (en) 2008-10-02
JP2010524339A (ja) 2010-07-15
TW200847671A (en) 2008-12-01
EP2143212A1 (de) 2010-01-13
US7801238B2 (en) 2010-09-21
CN101657977A (zh) 2010-02-24
EP2143212B1 (de) 2012-02-22

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