WO2011037427A3 - 무선 통신 시스템에서 참조 신호 전송 방법 및 장치 - Google Patents

무선 통신 시스템에서 참조 신호 전송 방법 및 장치 Download PDF

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Publication number
WO2011037427A3
WO2011037427A3 PCT/KR2010/006543 KR2010006543W WO2011037427A3 WO 2011037427 A3 WO2011037427 A3 WO 2011037427A3 KR 2010006543 W KR2010006543 W KR 2010006543W WO 2011037427 A3 WO2011037427 A3 WO 2011037427A3
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Prior art keywords
reference signal
subframe
csi
wireless communication
communication system
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PCT/KR2010/006543
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English (en)
French (fr)
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WO2011037427A2 (ko
Inventor
노민석
이문일
정재훈
문성호
한승희
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엘지전자 주식회사
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Publication date
Priority to EP10819068.7A priority Critical patent/EP2469738B1/en
Priority to US13/498,273 priority patent/US9083482B2/en
Priority to JP2012530786A priority patent/JP5886747B2/ja
Priority to CN201080051701.8A priority patent/CN102687421B/zh
Priority to CA2775479A priority patent/CA2775479C/en
Priority to AU2010298845A priority patent/AU2010298845B8/en
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Publication of WO2011037427A2 publication Critical patent/WO2011037427A2/ko
Publication of WO2011037427A3 publication Critical patent/WO2011037427A3/ko
Priority to US14/746,479 priority patent/US9572137B2/en
Priority to US15/402,887 priority patent/US10028265B2/en
Priority to US16/023,737 priority patent/US10582483B2/en
Priority to US16/750,590 priority patent/US11395281B2/en

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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
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0023—Interference mitigation or co-ordination
    • H04J11/005—Interference mitigation or co-ordination of intercell interference
    • H04J11/0053—Interference mitigation or co-ordination of intercell interference using co-ordinated multipoint transmission/reception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • 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
    • H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • H04L27/2607—Cyclic extensions
    • 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
    • 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
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2643—Modulators using symbol repetition, e.g. time domain realization of distributed FDMA
    • 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
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057—Physical resource allocation for CQI
    • 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
    • H04L5/0058—Allocation criteria
    • H04L5/0073—Allocation arrangements that take into account other cell interferences
    • 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
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • 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
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03426—Arrangements for removing intersymbol interference characterised by the type of transmission transmission using multiple-input and multiple-output channels
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03777—Arrangements for removing intersymbol interference characterised by the signalling
    • H04L2025/03802—Signalling on the reverse channel
    • 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
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • 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
    • H04L5/0026—Division using four or more dimensions
    • 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
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • 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
    • H04L5/0078—Timing of allocation
    • H04L5/0082—Timing of allocation at predetermined intervals

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)

Abstract

무선 통신 시스템에서 기지국에 의한 참조 신호 전송 방법 및 장치가 제공된다. 기지국은 복수의 레이어 각각에 대한 CSI(Channel State Information) 참조 신호(RS; Reference Signal)를 생성하고, 상기 복수의 CSI-RS를 서브프레임(subframe) 내에 복수의 자원 요소(RE; Resource Element)들로 구성되는 자원 요소 세트에 맵핑하고, 상기 복수의 CSI-RS가 맵핑된 서브프레임을 전송한다. 상기 자원 요소 세트를 구성하는 복수의 자원 요소들은 인접한 2개의 OFDM(Orthogonal Frequency Division Multiplexing) 심벌 내에서 일정한 부반송파 간격으로 배치된 자원 요소들이며, 상기 서브프레임은 12개의 OFDM 심벌을 포함하는 확장(extended) CP(Cyclic Prefix) 구조이다.
PCT/KR2010/006543 2009-09-27 2010-09-27 무선 통신 시스템에서 참조 신호 전송 방법 및 장치 WO2011037427A2 (ko)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US13/498,273 US9083482B2 (en) 2009-09-27 2010-09-27 Method and apparatus for transmitting reference signal in wireless communication system
JP2012530786A JP5886747B2 (ja) 2009-09-27 2010-09-27 無線通信システムにおける参照信号送信方法及び装置
CN201080051701.8A CN102687421B (zh) 2009-09-27 2010-09-27 用于在无线通信系统中传输参考信号的方法和设备
CA2775479A CA2775479C (en) 2009-09-27 2010-09-27 Method and apparatus for transmitting reference signal in wireless communication system
AU2010298845A AU2010298845B8 (en) 2009-09-27 2010-09-27 Method and apparatus for transmitting reference signal in wireless communication system
EP10819068.7A EP2469738B1 (en) 2009-09-27 2010-09-27 Method and apparatus for transmitting reference signal in wireless communication system
US14/746,479 US9572137B2 (en) 2009-09-27 2015-06-22 Method and apparatus for transmitting reference signal in wireless communication system
US15/402,887 US10028265B2 (en) 2009-09-27 2017-01-10 Method and apparatus for transmitting reference signal in wireless communication system
US16/023,737 US10582483B2 (en) 2009-09-27 2018-06-29 Method and apparatus for transmitting reference signal in wireless communication system
US16/750,590 US11395281B2 (en) 2009-09-27 2020-01-23 Method and apparatus for transmitting reference signal in wireless communication system

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US24615409P 2009-09-27 2009-09-27
US61/246,154 2009-09-27
US32388110P 2010-04-14 2010-04-14
US61/323,881 2010-04-14
US36143510P 2010-07-05 2010-07-05
US61/361,435 2010-07-05
KR1020100093216A KR101367570B1 (ko) 2009-09-27 2010-09-27 무선 통신 시스템에서 참조 신호 전송 방법 및 장치
KR10-2010-0093216 2010-09-27

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US13/498,273 A-371-Of-International US9083482B2 (en) 2009-09-27 2010-09-27 Method and apparatus for transmitting reference signal in wireless communication system
US14/746,479 Continuation US9572137B2 (en) 2009-09-27 2015-06-22 Method and apparatus for transmitting reference signal in wireless communication system

Publications (2)

Publication Number Publication Date
WO2011037427A2 WO2011037427A2 (ko) 2011-03-31
WO2011037427A3 true WO2011037427A3 (ko) 2011-10-13

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PCT/KR2010/006543 WO2011037427A2 (ko) 2009-09-27 2010-09-27 무선 통신 시스템에서 참조 신호 전송 방법 및 장치

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US (5) US9083482B2 (ko)
EP (1) EP2469738B1 (ko)
JP (1) JP5886747B2 (ko)
KR (1) KR101367570B1 (ko)
CN (1) CN102687421B (ko)
AU (1) AU2010298845B8 (ko)
CA (1) CA2775479C (ko)
WO (1) WO2011037427A2 (ko)

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