AU2011211579B2 - Method and apparatus for transmitting downlink reference signal in wireless communication system supporting multiple antennas - Google Patents

Method and apparatus for transmitting downlink reference signal in wireless communication system supporting multiple antennas

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Publication number
AU2011211579B2
AU2011211579B2 AU2011211579A AU2011211579A AU2011211579B2 AU 2011211579 B2 AU2011211579 B2 AU 2011211579B2 AU 2011211579 A AU2011211579 A AU 2011211579A AU 2011211579 A AU2011211579 A AU 2011211579A AU 2011211579 B2 AU2011211579 B2 AU 2011211579B2
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AU
Australia
Prior art keywords
csi
rss
group
antenna ports
groups
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AU2011211579A
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English (en)
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AU2011211579A1 (en
Inventor
Byoung Hoon Kim
Eun Sun Kim
Hak Seong Kim
Ki Jun Kim
Dae Won Lee
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LG Electronics Inc
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LG Electronics Inc
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Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Priority claimed from PCT/KR2011/000045 external-priority patent/WO2011096646A2/en
Publication of AU2011211579A1 publication Critical patent/AU2011211579A1/en
Application granted granted Critical
Publication of AU2011211579B2 publication Critical patent/AU2011211579B2/en
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Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
AU2011211579A 2010-02-07 2011-01-05 Method and apparatus for transmitting downlink reference signal in wireless communication system supporting multiple antennas Active AU2011211579B2 (en)

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
KR1020100104630A KR101241916B1 (ko) 2010-02-07 2010-10-26 다중 안테나를 지원하는 무선 통신 시스템에서 하향링크 참조신호를 전송하는 방법 및 장치
KR10-2010-0104630 2010-10-26
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

Publications (2)

Publication Number Publication Date
AU2011211579A1 AU2011211579A1 (en) 2012-07-26
AU2011211579B2 true AU2011211579B2 (en) 2013-08-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
AU2011211579A Active AU2011211579B2 (en) 2010-02-07 2011-01-05 Method and apparatus for transmitting downlink reference signal in wireless communication system supporting multiple antennas

Country Status (7)

Country Link
JP (2) JP5779595B2 (ru)
KR (2) KR101241916B1 (ru)
CN (2) CN104485984B (ru)
AU (1) AU2011211579B2 (ru)
BR (1) BR112012019651B1 (ru)
MX (1) MX2012008309A (ru)
RU (1) RU2518405C2 (ru)

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Also Published As

Publication number Publication date
CN102754357A (zh) 2012-10-24
BR112012019651B1 (pt) 2021-11-16
JP6100843B2 (ja) 2017-03-22
KR101241916B1 (ko) 2013-03-11
MX2012008309A (es) 2012-08-03
AU2011211579A1 (en) 2012-07-26
CN104485984B (zh) 2018-01-23
RU2518405C2 (ru) 2014-06-10
JP5779595B2 (ja) 2015-09-16
CN104485984A (zh) 2015-04-01
KR20110091839A (ko) 2011-08-16
JP2016001880A (ja) 2016-01-07
KR20120100857A (ko) 2012-09-12
JP2013519287A (ja) 2013-05-23
BR112012019651A2 (pt) 2016-05-03
KR101276862B1 (ko) 2013-06-18
RU2012138168A (ru) 2014-03-27
CN102754357B (zh) 2015-02-04

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