CN102754357B - 在支持多个天线的无线通信系统中发送下行链路基准信号的方法和设备 - Google Patents

在支持多个天线的无线通信系统中发送下行链路基准信号的方法和设备 Download PDF

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Publication number
CN102754357B
CN102754357B CN201180008624.2A CN201180008624A CN102754357B CN 102754357 B CN102754357 B CN 102754357B CN 201180008624 A CN201180008624 A CN 201180008624A CN 102754357 B CN102754357 B CN 102754357B
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csi
antenna ports
set candidates
ofdm symbol
group
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Chinese (zh)
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CN102754357A (zh
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李大远
金学成
金炳勋
金沂濬
金银善
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LG Electronics Inc
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LG Electronics Inc
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Priority claimed from PCT/KR2011/000045 external-priority patent/WO2011096646A2/en
Publication of CN102754357A publication Critical patent/CN102754357A/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • H04B7/0413—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
    • H04B7/0658—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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H04L27/26134—Pilot insertion in the transmitter chain, e.g. pilot overlapping with data, insertion in time or frequency domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
CN201180008624.2A 2010-02-07 2011-01-05 在支持多个天线的无线通信系统中发送下行链路基准信号的方法和设备 Active CN102754357B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510006914.3A CN104485984B (zh) 2010-02-07 2011-01-05 发送csi‑rs、测量信道状态信息的方法和设备

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US30216610P 2010-02-07 2010-02-07
US61/302,166 2010-02-07
US30939010P 2010-03-01 2010-03-01
US61/309,390 2010-03-01
KR10-2010-0104630 2010-10-26
KR1020100104630A KR101241916B1 (ko) 2010-02-07 2010-10-26 다중 안테나를 지원하는 무선 통신 시스템에서 하향링크 참조신호를 전송하는 방법 및 장치
PCT/KR2011/000045 WO2011096646A2 (en) 2010-02-07 2011-01-05 Method and apparatus for transmitting downlink reference signal in wireless communication system supporting multiple antennas

Related Child Applications (1)

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CN201510006914.3A Division CN104485984B (zh) 2010-02-07 2011-01-05 发送csi‑rs、测量信道状态信息的方法和设备

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CN102754357A CN102754357A (zh) 2012-10-24
CN102754357B true CN102754357B (zh) 2015-02-04

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CN201510006914.3A Active CN104485984B (zh) 2010-02-07 2011-01-05 发送csi‑rs、测量信道状态信息的方法和设备

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JP (2) JP5779595B2 (ja)
KR (2) KR101241916B1 (ja)
CN (2) CN102754357B (ja)
AU (1) AU2011211579B2 (ja)
BR (1) BR112012019651B1 (ja)
MX (1) MX2012008309A (ja)
RU (1) RU2518405C2 (ja)

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CN104485984A (zh) 2015-04-01
JP6100843B2 (ja) 2017-03-22
CN102754357A (zh) 2012-10-24
AU2011211579B2 (en) 2013-08-29
RU2518405C2 (ru) 2014-06-10
RU2012138168A (ru) 2014-03-27
JP5779595B2 (ja) 2015-09-16
BR112012019651A2 (pt) 2016-05-03
AU2011211579A1 (en) 2012-07-26
JP2013519287A (ja) 2013-05-23
KR20110091839A (ko) 2011-08-16
KR20120100857A (ko) 2012-09-12
KR101276862B1 (ko) 2013-06-18
BR112012019651B1 (pt) 2021-11-16
CN104485984B (zh) 2018-01-23
KR101241916B1 (ko) 2013-03-11
JP2016001880A (ja) 2016-01-07
MX2012008309A (es) 2012-08-03

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