WO2010087639A3 - 하향링크 다중 안테나 시스템에 있어서, 참조 신호 전송 방법 - Google Patents

하향링크 다중 안테나 시스템에 있어서, 참조 신호 전송 방법 Download PDF

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Publication number
WO2010087639A3
WO2010087639A3 PCT/KR2010/000542 KR2010000542W WO2010087639A3 WO 2010087639 A3 WO2010087639 A3 WO 2010087639A3 KR 2010000542 W KR2010000542 W KR 2010000542W WO 2010087639 A3 WO2010087639 A3 WO 2010087639A3
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WO
WIPO (PCT)
Prior art keywords
antenna port
reference signal
crs
transmitting
output system
Prior art date
Application number
PCT/KR2010/000542
Other languages
English (en)
French (fr)
Other versions
WO2010087639A2 (ko
Inventor
이문일
이욱봉
정재훈
고현수
임빈철
Original Assignee
엘지전자 주식회사
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 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to US13/145,557 priority Critical patent/US8750402B2/en
Publication of WO2010087639A2 publication Critical patent/WO2010087639A2/ko
Publication of WO2010087639A3 publication Critical patent/WO2010087639A3/ko

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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
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • 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
    • 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
    • H04L5/0037—Inter-user or inter-terminal allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels

Landscapes

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

Abstract

총 M개의 송신 안테나 중 N개의 송신 안테나를 지원하는 제1 UE(User Equipment)와 상기 M(단, M>N)개의 송신 안테나를 지원하는 제2 UE를 지원하는 하향링크 MIMO(Multi Input Multi Output) 시스템에 있어서, 참조 신호(Reference Signal; RS)를 전송하는 방법이 제공된다. 상기 방법은 기지국에서, 상기 제1 UE와 상기 제2 UE를 동시에 지원하는 서브프레임을 생성하는 단계; 상기 서브프레임을 전송하는 단계; 상기 서브프레임에서, 안테나 포트 0부터 N-1에 대한 공통 참조 신호(Common Reference Signal; CRS)가 사상(mapping)되고, 안테나 포트 N부터 M-1에 대한 CRS가 사상되며, 상기 안테나 포트 0부터 N-1에 대한 CRS의 전력 레벨(power level)과 상기 안테나 포트 N부터 M-1에 대한 CRS의 전력 레벨을 서로 독립적으로 제어된다.
PCT/KR2010/000542 2009-01-30 2010-01-29 하향링크 다중 안테나 시스템에 있어서, 참조 신호 전송 방법 WO2010087639A2 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/145,557 US8750402B2 (en) 2009-01-30 2010-01-29 Method for transmitting reference signal in downlink multi-input multi-output system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US14840509P 2009-01-30 2009-01-30
US61/148,405 2009-01-30
KR10-2009-0089530 2009-09-22
KR1020090089530A KR20100088518A (ko) 2009-01-30 2009-09-22 하향링크 ｍｉｍｏ 시스템에 있어서, 참조 신호 전송 방법

Publications (2)

Publication Number Publication Date
WO2010087639A2 WO2010087639A2 (ko) 2010-08-05
WO2010087639A3 true WO2010087639A3 (ko) 2010-11-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2010/000542 WO2010087639A2 (ko) 2009-01-30 2010-01-29 하향링크 다중 안테나 시스템에 있어서, 참조 신호 전송 방법

Country Status (3)

Country Link
US (1) US8750402B2 (ko)
KR (1) KR20100088518A (ko)
WO (1) WO2010087639A2 (ko)

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US8750257B2 (en) * 2009-10-12 2014-06-10 Lg Electronics Inc. Method and apparatus for providing downlink reference signal transmission power information in a wireless communication system that supports multiple antennas
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WO2012020963A2 (en) 2010-08-13 2012-02-16 Lg Electronics Inc. Method and base station for transmitting downlink signal and method and equipment for receiving downlink signal
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US9986388B2 (en) 2010-10-06 2018-05-29 Unwired Planet International Limited Method and apparatus for transmitting and receiving data
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CN102413557B (zh) * 2011-11-25 2015-06-17 中国电信股份有限公司 上行参考信号传输方法、终端和多天线通信系统
WO2013103219A1 (ko) * 2012-01-03 2013-07-11 엘지전자 주식회사 무선 접속 시스템에서 하향링크 전송 전력 설정 방법 및 이를 위한 장치
WO2013115708A2 (en) * 2012-01-30 2013-08-08 Telefonaktiebolaget L M Ericsson (Publ) Method, apparatus, and system for using common and demodulation pilot signals in multi-antenna wireless communications
US9516601B2 (en) 2012-07-19 2016-12-06 Lg Electronics Inc. Method and apparatus for determining transmission power of uplink control channel in wireless communication system
US9854571B2 (en) 2012-07-23 2017-12-26 Lg Electronics Inc. Method and apparatus for acquiring diversity gain according to distributed resource allocation for downlink control channel in wireless communication system
KR101361200B1 (ko) * 2012-12-21 2014-02-11 주식회사 케이티 이동 통신 시스템 및 그 시스템에서의 전력 제어 방법
KR102213362B1 (ko) 2014-03-03 2021-02-08 삼성전자 주식회사 Mimo 시스템에서 가상 안테나 매핑 정보를 피드백하는 가상 안테나 매핑 방법 및 장치
EP3195667A4 (en) * 2014-09-18 2018-04-04 Intel IP Corporation Scheme of finite power transmission statuses for low cost wireless broadband communication system
US10341888B2 (en) * 2014-10-07 2019-07-02 Lg Electronics Inc. Method and device for selectively performing DRS measurement or CRS measurement
US9787387B2 (en) 2015-05-15 2017-10-10 Electronics And Telecommunications Research Institute Method and apparatus for virtualizing antenna in multi-antenna system, and method and apparatus for transmitting and receiving signal using the same
CN107302421B (zh) * 2016-04-08 2021-05-18 华为技术有限公司 一种功率配置方法及设备

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Also Published As

Publication number Publication date
US8750402B2 (en) 2014-06-10
WO2010087639A2 (ko) 2010-08-05
US20110274205A1 (en) 2011-11-10
KR20100088518A (ko) 2010-08-09

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