EP2481234A4 - X-mimo-systeme mit mehrfachsendern und mehrfachempfängern - Google Patents

X-mimo-systeme mit mehrfachsendern und mehrfachempfängern

Info

Publication number
EP2481234A4
EP2481234A4 EP10818207.2A EP10818207A EP2481234A4 EP 2481234 A4 EP2481234 A4 EP 2481234A4 EP 10818207 A EP10818207 A EP 10818207A EP 2481234 A4 EP2481234 A4 EP 2481234A4
Authority
EP
European Patent Office
Prior art keywords
transmitters
receivers
mimo systems
mimo
systems
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
EP10818207.2A
Other languages
English (en)
French (fr)
Other versions
EP2481234A1 (de
Inventor
Mohammad Maddah-Ali
Seyed Abolfazl Motahari
Amir Khandani
Mohammadhadi Ballgh
Ming Jia
Jianglei Ma
Peiying Zhu
Wen Tong
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BlackBerry Ltd
Original Assignee
BlackBerry Ltd
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 BlackBerry Ltd filed Critical BlackBerry Ltd
Priority to EP20182637.7A priority Critical patent/EP3793094A1/de
Publication of EP2481234A1 publication Critical patent/EP2481234A1/de
Publication of EP2481234A4 publication Critical patent/EP2481234A4/de
Ceased legal-status Critical Current

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
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—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
    • H04B7/14—Relay systems
    • 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

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)
  • Radio Relay Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
EP10818207.2A 2009-09-24 2010-09-24 X-mimo-systeme mit mehrfachsendern und mehrfachempfängern Ceased EP2481234A4 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20182637.7A EP3793094A1 (de) 2009-09-24 2010-09-24 X-mimo-systeme mit mehrfachsendern und mehrfachempfängern

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US24533909P 2009-09-24 2009-09-24
PCT/CA2010/001529 WO2011035439A1 (en) 2009-09-24 2010-09-24 X-mimo systems with multi-transmitters and multi- receivers

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP20182637.7A Division EP3793094A1 (de) 2009-09-24 2010-09-24 X-mimo-systeme mit mehrfachsendern und mehrfachempfängern

Publications (2)

Publication Number Publication Date
EP2481234A1 EP2481234A1 (de) 2012-08-01
EP2481234A4 true EP2481234A4 (de) 2016-06-01

Family

ID=43795264

Family Applications (2)

Application Number Title Priority Date Filing Date
EP10818207.2A Ceased EP2481234A4 (de) 2009-09-24 2010-09-24 X-mimo-systeme mit mehrfachsendern und mehrfachempfängern
EP20182637.7A Withdrawn EP3793094A1 (de) 2009-09-24 2010-09-24 X-mimo-systeme mit mehrfachsendern und mehrfachempfängern

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP20182637.7A Withdrawn EP3793094A1 (de) 2009-09-24 2010-09-24 X-mimo-systeme mit mehrfachsendern und mehrfachempfängern

Country Status (9)

Country Link
EP (2) EP2481234A4 (de)
JP (1) JP2013506319A (de)
KR (1) KR20120086296A (de)
CN (1) CN102812737B (de)
BR (1) BR112012007086A2 (de)
CA (1) CA2775002A1 (de)
IN (1) IN2012DN02386A (de)
RU (1) RU2012116213A (de)
WO (1) WO2011035439A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220393841A1 (en) * 2021-06-03 2022-12-08 Mediatek Inc. Downlink framework for distributed mimo receivers

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090143008A1 (en) * 2007-11-30 2009-06-04 Nokia Corporation Apparatus, method and computer program product for determining transmit weights in relay networks
WO2009082179A2 (en) * 2007-12-26 2009-07-02 Lg Electronics Inc. Method of transmitting feedback information for performing collaborative mimo

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7197084B2 (en) * 2002-03-27 2007-03-27 Qualcomm Incorporated Precoding for a multipath channel in a MIMO system
US8208364B2 (en) * 2002-10-25 2012-06-26 Qualcomm Incorporated MIMO system with multiple spatial multiplexing modes
US7720173B2 (en) * 2005-10-17 2010-05-18 Samsung Electronics Co., Ltd Apparatus and method for transmitting/receiving data in multi-user multi-antenna communication system
US8077686B2 (en) * 2007-07-20 2011-12-13 Marvell World Trade Ltd. Multiple packet data network support over trusted access
KR100995045B1 (ko) * 2007-12-31 2010-11-19 엘지전자 주식회사 협동 다중 입출력 통신 시스템에서, 프리코딩된 신호를송신하는 방법

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090143008A1 (en) * 2007-11-30 2009-06-04 Nokia Corporation Apparatus, method and computer program product for determining transmit weights in relay networks
WO2009082179A2 (en) * 2007-12-26 2009-07-02 Lg Electronics Inc. Method of transmitting feedback information for performing collaborative mimo

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
MUNDARATH J C ET AL: "Multi-User Multi-Input Multi-Output (MU-MIMO) Downlink Beamforming Systems with Limited Feedback", 2008 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE : [IEEE GLOBECOM 2008] ; NEW ORLEANS, LOUISIANA, 30 NOVEMBER 2008 - 04 DECEMBER 2008, IEEE, PISCATAWAY, NJ, USA, 30 November 2008 (2008-11-30), pages 1 - 6, XP031370420, ISBN: 978-1-4244-2324-8 *
See also references of WO2011035439A1 *

Also Published As

Publication number Publication date
CN102812737A (zh) 2012-12-05
IN2012DN02386A (de) 2015-08-21
JP2013506319A (ja) 2013-02-21
EP2481234A1 (de) 2012-08-01
RU2012116213A (ru) 2013-11-10
EP3793094A1 (de) 2021-03-17
CA2775002A1 (en) 2011-03-31
CN102812737B (zh) 2016-01-13
WO2011035439A1 (en) 2011-03-31
KR20120086296A (ko) 2012-08-02
WO2011035439A8 (en) 2012-04-12
BR112012007086A2 (pt) 2019-09-24

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