ATE448607T1 - Verfahren und vorrichtung in einem auf mimo basierenden kommunikationssystem - Google Patents

Verfahren und vorrichtung in einem auf mimo basierenden kommunikationssystem

Info

Publication number
ATE448607T1
ATE448607T1 AT04775460T AT04775460T ATE448607T1 AT E448607 T1 ATE448607 T1 AT E448607T1 AT 04775460 T AT04775460 T AT 04775460T AT 04775460 T AT04775460 T AT 04775460T AT E448607 T1 ATE448607 T1 AT E448607T1
Authority
AT
Austria
Prior art keywords
users
mimo
communication parameters
communication
communications system
Prior art date
Application number
AT04775460T
Other languages
English (en)
Inventor
Peter Larsson
Svante Signell
David Astely
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Application granted granted Critical
Publication of ATE448607T1 publication Critical patent/ATE448607T1/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
    • H04B7/0413—MIMO systems
    • H04B7/0417—Feedback systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0028—Formatting
    • 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
    • H04B7/0621—Feedback content
    • H04B7/0628—Diversity capabilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/38—TPC being performed in particular situations
    • H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
AT04775460T 2003-12-19 2004-09-22 Verfahren und vorrichtung in einem auf mimo basierenden kommunikationssystem ATE448607T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0302058 2003-12-19
PCT/SE2004/001358 WO2005060123A1 (en) 2003-12-19 2004-09-22 Method and apparatus in a mimo based communication system

Publications (1)

Publication Number Publication Date
ATE448607T1 true ATE448607T1 (de) 2009-11-15

Family

ID=34699243

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04775460T ATE448607T1 (de) 2003-12-19 2004-09-22 Verfahren und vorrichtung in einem auf mimo basierenden kommunikationssystem

Country Status (9)

Country Link
US (1) US7778342B2 (de)
EP (1) EP1695456B1 (de)
KR (1) KR101084831B1 (de)
CN (1) CN100555906C (de)
AT (1) ATE448607T1 (de)
DE (1) DE602004024116D1 (de)
ES (1) ES2336115T3 (de)
TW (1) TWI354462B (de)
WO (1) WO2005060123A1 (de)

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KR20060096365A (ko) * 2005-03-04 2006-09-11 삼성전자주식회사 다중 사용자 다중입력 다중출력（ｍｕ－ｍｉｍｏ）통신시스템의 사용자 스케줄링 방법
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US7917101B2 (en) 2005-09-21 2011-03-29 Broadcom Corporation Method and system for a greedy user group selection with range reduction in TDD multiuser MIMO downlink transmission
US7899421B2 (en) * 2005-09-21 2011-03-01 Broadcom Corporation Double search algorithm of user group selection for multiuser MIMO downlink transmission
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US8351530B2 (en) * 2007-02-16 2013-01-08 Interdigital Technology Corporation Method and apparatus for transmitting control signaling for MIMO transmission
KR20090113898A (ko) * 2007-02-28 2009-11-02 가부시키가이샤 엔티티 도코모 이동통신시스템에 있어서의 유저장치, 기지국장치 및 통신제어방법
US8054837B2 (en) 2007-04-30 2011-11-08 Yim Tu Investments Ltd., Llc Multiuser scheduling for MIMO broadcast channels with finite rate feedback
US8547986B2 (en) 2007-04-30 2013-10-01 Apple Inc. System and method for resource block-specific control signaling
US20080268785A1 (en) * 2007-04-30 2008-10-30 Mccoy James W UE-autonomous CFI reporting
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US8098755B2 (en) 2007-09-07 2012-01-17 Broadcom Corporation Method and system for beamforming in a multiple user multiple input multiple output (MIMO) communication system using a codebook
US7978623B1 (en) 2008-03-22 2011-07-12 Freescale Semiconductor, Inc. Channel rank updates in multiple-input multiple-output communication systems
US8155063B2 (en) 2008-04-28 2012-04-10 Apple Inc. Apparatus and methods for transmission and reception of data in multi-antenna systems
WO2009135983A1 (en) * 2008-05-07 2009-11-12 Elektrobit Wireless Communications Ltd. Method and system for reducing feedback load in mobile wireless systems
EP2141825A1 (de) * 2008-06-30 2010-01-06 Alcatel, Lucent Verfahren zur Verringerung der räumlichen Interferenz innerhalb einer Zelle in einem mobilen zellularen Netzwerk
JP4605266B2 (ja) * 2008-07-23 2011-01-05 ソニー株式会社 無線通信システム、無線通信装置及び無線通信方法、エンコード装置及びエンコード方法、並びにコンピュータ・プログラム
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JP5473131B2 (ja) * 2010-01-15 2014-04-16 シャープ株式会社 通信システム、通信装置、通信方法およびそのプロセッサ
KR20120007345A (ko) * 2010-07-14 2012-01-20 아주대학교산학협력단 통신 시스템에서의 신호 전송장치 및 방법
US9184810B2 (en) 2012-04-13 2015-11-10 Qualcomm Incorporated Scheduling algorithms for multi-user (MU) multiple-input multiple-output (MIMO) communication systems
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Also Published As

Publication number Publication date
TWI354462B (en) 2011-12-11
CN100555906C (zh) 2009-10-28
DE602004024116D1 (de) 2009-12-24
ES2336115T3 (es) 2010-04-08
US7778342B2 (en) 2010-08-17
KR101084831B1 (ko) 2011-11-21
EP1695456B1 (de) 2009-11-11
EP1695456A1 (de) 2006-08-30
CN1918815A (zh) 2007-02-21
WO2005060123A1 (en) 2005-06-30
TW200529589A (en) 2005-09-01
US20070258392A1 (en) 2007-11-08
KR20060123283A (ko) 2006-12-01

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