EG25856A - Method and arrangements for communication of channel quality information in a telecommunications system - Google Patents

Method and arrangements for communication of channel quality information in a telecommunications system

Info

Publication number
EG25856A
EG25856A EG2009121936A EG2009121936A EG25856A EG 25856 A EG25856 A EG 25856A EG 2009121936 A EG2009121936 A EG 2009121936A EG 2009121936 A EG2009121936 A EG 2009121936A EG 25856 A EG25856 A EG 25856A
Authority
EG
Egypt
Prior art keywords
arrangements
communication
channel quality
quality information
telecommunications system
Prior art date
Application number
EG2009121936A
Other languages
English (en)
Inventor
Karl J Molnar
David Astely
Tomas Sundin
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 EG25856A publication Critical patent/EG25856A/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
    • H04B7/04—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
    • H04B7/0658—Feedback reduction
    • H04B7/066—Combined feedback for a number of channels, e.g. over several subcarriers like in orthogonal frequency division multiplexing [OFDM]
    • 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
    • H04B7/0602—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 antenna switching
    • H04B7/0608—Antenna selection according to transmission parameters
    • H04B7/061—Antenna selection according to transmission parameters using feedback from receiving side
    • 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
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • 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
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0691—Hybrid systems, i.e. switching and simultaneous transmission using subgroups of transmit antennas
    • 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
    • H04L1/003—Adaptive formatting arrangements particular to signalling, e.g. variable amount of bits
    • 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
    • H04L1/0618—Space-time coding
    • H04L1/0631—Receiver arrangements
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0067—Rate matching
    • H04L1/0068—Rate matching by puncturing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
EG2009121936A 2007-07-06 2009-12-30 Method and arrangements for communication of channel quality information in a telecommunications system EG25856A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE2007/050509 WO2009008787A1 (en) 2007-07-06 2007-07-06 Method and arrangements for communication of channel quality information in a telecommunications system

Publications (1)

Publication Number Publication Date
EG25856A true EG25856A (en) 2012-09-11

Family

ID=40228811

Family Applications (1)

Application Number Title Priority Date Filing Date
EG2009121936A EG25856A (en) 2007-07-06 2009-12-30 Method and arrangements for communication of channel quality information in a telecommunications system

Country Status (15)

Country Link
US (1) US20100222008A1 (xx)
EP (1) EP2165427B1 (xx)
JP (1) JP5044017B2 (xx)
KR (1) KR20100032884A (xx)
CN (1) CN101689958B (xx)
AU (1) AU2007356479B2 (xx)
BR (1) BRPI0721836A2 (xx)
CA (1) CA2693372A1 (xx)
EG (1) EG25856A (xx)
IL (1) IL202587A0 (xx)
MA (1) MA31547B1 (xx)
MX (1) MX2009013556A (xx)
NZ (1) NZ581931A (xx)
WO (1) WO2009008787A1 (xx)
ZA (1) ZA200908717B (xx)

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CN104135313B (zh) 2008-02-28 2019-01-04 苹果公司 基站、移动站和用于操作第一无线节点的方法
JP5386493B2 (ja) * 2008-09-04 2014-01-15 シャープ株式会社 無線通信装置及び無線通信システム
US8301177B2 (en) * 2009-03-03 2012-10-30 Intel Corporation Efficient paging operation for femtocell deployment
KR101606409B1 (ko) * 2009-08-27 2016-04-01 삼성전자주식회사 통신 시스템에서 채널 상태 정보 처리 장치 및 방법
CN102056220B (zh) 2009-10-28 2014-02-19 华为技术有限公司 实现信道测量的方法及装置
CN105959081A (zh) 2010-02-12 2016-09-21 交互数字专利控股公司 发送用于多个服务小区的上行链路反馈信息的wtru及方法
CN105162509B (zh) * 2010-04-01 2018-06-01 Lg电子株式会社 在无线接入系统中发送和接收csi报告的方法及其支持设备
US9654197B2 (en) * 2010-04-15 2017-05-16 Futurewei Technologies, Inc. System and method for feeding back channel information
US9414269B2 (en) * 2010-05-14 2016-08-09 Blackberry Limited Systems and methods of transmitting measurement reports
EP2862286B1 (en) * 2012-06-18 2017-09-13 Empire Technology Development LLC Adaptive mode-switching spatial modulation for mimo wireless communication system
US9686800B2 (en) * 2012-08-03 2017-06-20 Qualcomm Incorporated Methods and apparatus for reporting channel quality indicator (CQI)
KR102067156B1 (ko) * 2012-12-31 2020-02-11 삼성전자주식회사 안테나 모드 스티어링 회로와 장치 및 방법
WO2015143627A1 (zh) * 2014-03-25 2015-10-01 华为技术有限公司 信道状态信息获取方法及设备
US10122406B2 (en) * 2015-06-29 2018-11-06 Qualcomm Incorporated Coexistence over a shared band with dual antenna sharing
US11025338B1 (en) * 2020-03-05 2021-06-01 Wipro Limited Method and system for identifying and mitigating interference caused by rogue Li-Fi access point

Family Cites Families (15)

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US7499709B2 (en) * 2002-02-07 2009-03-03 Alcatel-Lucent Usa Inc. Method and apparatus for closed loop transmit diversity in a wireless communications system
KR100566274B1 (ko) 2003-11-20 2006-03-30 삼성전자주식회사 직교주파수분할다중 시스템에서 부반송파 할당 장치 및방법
EP1698086A2 (en) * 2003-12-27 2006-09-06 Electronics and Telecommunications Research Institute A mimo-ofdm system using eigenbeamforming method
US8249518B2 (en) * 2003-12-29 2012-08-21 Telefonaktiebolaget Lm Ericsson (Publ) Network controlled feedback for MIMO systems
CN1951042A (zh) * 2004-02-07 2007-04-18 桥扬科技有限公司 具有自动重复请求(arq)的多载波通信系统的方法和设备
SE0400370D0 (sv) * 2004-02-13 2004-02-13 Ericsson Telefon Ab L M Adaptive MIMO architecture
CN1954534B (zh) * 2004-03-19 2010-12-22 高通股份有限公司 用于在通信系统中进行灵活频谱分配的方法和装置
EP3447935B1 (en) * 2004-04-02 2022-01-26 Apple Inc. Wireless communication methods, systems, and signal structures
US20050250544A1 (en) * 2004-05-07 2005-11-10 Stephen Grant Base station, mobile terminal device and method for implementing a selective-per-antenna-rate-control (S-PARC) technique in a wireless communications network
US20060034244A1 (en) * 2004-08-11 2006-02-16 Interdigital Technology Corporation Method and system for link adaptation in an orthogonal frequency division multiplexing (OFDM) wireless communication system
JP4567628B2 (ja) * 2005-06-14 2010-10-20 株式会社エヌ・ティ・ティ・ドコモ 移動局、送信方法及び通信システム
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Also Published As

Publication number Publication date
NZ581931A (en) 2012-11-30
CN101689958B (zh) 2013-07-17
BRPI0721836A2 (pt) 2013-03-05
MX2009013556A (es) 2010-03-08
WO2009008787A1 (en) 2009-01-15
EP2165427A1 (en) 2010-03-24
US20100222008A1 (en) 2010-09-02
IL202587A0 (en) 2010-06-30
AU2007356479A1 (en) 2009-01-15
ZA200908717B (en) 2011-03-30
EP2165427A4 (en) 2013-09-25
CA2693372A1 (en) 2009-01-15
MA31547B1 (fr) 2010-07-01
JP2010532950A (ja) 2010-10-14
JP5044017B2 (ja) 2012-10-10
CN101689958A (zh) 2010-03-31
AU2007356479B2 (en) 2012-12-13
KR20100032884A (ko) 2010-03-26
EP2165427B1 (en) 2017-02-15

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