WO2012026742A3 - 다중 안테나 지원 무선 통신 시스템에서 프리코딩된 신호 송수신 방법 및 장치 - Google Patents

다중 안테나 지원 무선 통신 시스템에서 프리코딩된 신호 송수신 방법 및 장치 Download PDF

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Publication number
WO2012026742A3
WO2012026742A3 PCT/KR2011/006224 KR2011006224W WO2012026742A3 WO 2012026742 A3 WO2012026742 A3 WO 2012026742A3 KR 2011006224 W KR2011006224 W KR 2011006224W WO 2012026742 A3 WO2012026742 A3 WO 2012026742A3
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WO
WIPO (PCT)
Prior art keywords
matrix
wireless communication
communication system
transceiving
precoded signal
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PCT/KR2011/006224
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English (en)
French (fr)
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WO2012026742A2 (ko
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고현수
정재훈
이문일
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엘지전자 주식회사
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Priority to US13/814,493 priority Critical patent/US8982978B2/en
Publication of WO2012026742A2 publication Critical patent/WO2012026742A2/ko
Publication of WO2012026742A3 publication Critical patent/WO2012026742A3/ko

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    • 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
    • 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
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/0478—Special codebook structures directed to feedback optimisation
    • 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
    • H04B7/0636—Feedback format
    • H04B7/0645—Variable feedback
    • H04B7/065—Variable contents, e.g. long-term or short-short
    • 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
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • 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
    • 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
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/046—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
    • H04B7/0465—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account taking power constraints at power amplifier or emission constraints, e.g. constant modulus, into account
    • 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
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/0486—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking channel rank into account
    • 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
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection

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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

본 발명은 무선 통신 시스템에 대한 것으로, 보다 상세하게는 다중 안테나 지원 무선 통신 시스템에서 프리코딩된 신호를 송수신하는 방법 및 장치가 개시된다. 본 발명의 일 실시예에 따른 송신기에서 N (N≥2) 개의 전송 안테나를 통하여 수신기로 신호를 전송하는 방법은, 제 1 프리코딩행렬지시자(PMI)와 관련된 제 1 코드북으로부터 제 1 행렬을 선택하고, 제 2 PMI와 관련된 제 2 코드북으로부터 상기 제 2 행렬을 선택하고, 상기 제 1 행렬 및 제 2 행렬에 기초하여 프리코딩 행렬을 결정하는 단계; 상기 수신기로 전송될 신호가 매핑되는 L (1≤L≤N) 개의 레이어에 대해서 상기 결정된 프리코딩 행렬을 이용하여 프리코딩을 수행하는 단계; 및 상기 프리코딩된 신호를 상기 N 개의 전송 안테나를 통하여 상기 수신기로 전송하는 단계를 포함할 수 있다. 여기서, 상기 제 1 코드북은 N×N 크기의 대각 행렬(diagonal matrix)을 하나 이상 포함하고, 상기 대각 행렬에서 0 이 아닌 요소(element) 는 소정의 위상 값을 가지며, 상기 제 2 코드북은 N×L 크기의 행렬을 하나 이상 포함할 수 있다.
PCT/KR2011/006224 2010-08-23 2011-08-23 다중 안테나 지원 무선 통신 시스템에서 프리코딩된 신호 송수신 방법 및 장치 WO2012026742A2 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/814,493 US8982978B2 (en) 2010-08-23 2011-08-23 Method and apparatus for transceiving a precoded signal in a multiple antenna supported wireless communication system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37588310P 2010-08-23 2010-08-23
US61/375,883 2010-08-23

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WO2012026742A3 true WO2012026742A3 (ko) 2012-05-03

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US (1) US8982978B2 (ko)
WO (1) WO2012026742A2 (ko)

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US8982978B2 (en) 2015-03-17
WO2012026742A2 (ko) 2012-03-01
US20130129018A1 (en) 2013-05-23

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