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1. WO2011037427 - METHOD AND APPARATUS FOR TRANSMITTING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM

Publication Number WO/2011/037427
Publication Date 31.03.2011
International Application No. PCT/KR2010/006543
International Filing Date 27.09.2010
IPC
H04B 7/26 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
24for communication between two or more posts
26at least one of which is mobile
H04J 11/00 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
11Orthogonal multiplex systems
CPC
H04B 7/0626
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
0613using simultaneous transmission
0615of weighted versions of same signal
0619using feedback from receiving side
0621Feedback content
0626Channel coefficients, e.g. channel state information [CSI]
H04J 11/0053
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
11Orthogonal multiplex systems, ; e.g. using WALSH codes
0023Interference mitigation or co-ordination
005of intercell interference
0053using co-ordinated multipoint transmission/reception
H04J 3/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
3Time-division multiplex systems
H04L 2025/03426
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
03006Arrangements for removing intersymbol interference
0335characterised by the type of transmission
03426transmission using multiple-input and multiple-output channels
H04L 2025/03802
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
03006Arrangements for removing intersymbol interference
03777characterised by the signalling
03802Signalling on the reverse channel
H04L 25/0226
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
0202Channel estimation
0224using sounding signals
0226sounding signals per se
Applicants
  • 엘지전자 주식회사 LG ELECTRONICS INC. [KR]/[KR] (AllExceptUS)
  • 노민석 NOH, Min Seok [KR]/[KR] (UsOnly)
  • 이문일 LEE, Moon Il [KR]/[KR] (UsOnly)
  • 정재훈 CHUNG, Jae Hoon [KR]/[KR] (UsOnly)
  • 문성호 MOON, Sung Ho [KR]/[KR] (UsOnly)
  • 한승희 HAN, Seung Hee [KR]/[KR] (UsOnly)
Inventors
  • 노민석 NOH, Min Seok
  • 이문일 LEE, Moon Il
  • 정재훈 CHUNG, Jae Hoon
  • 문성호 MOON, Sung Ho
  • 한승희 HAN, Seung Hee
Agents
  • 양문옥 YANG, Moon Ock
Priority Data
10-2010-009321627.09.2010KR
61/246,15427.09.2009US
61/323,88114.04.2010US
61/361,43505.07.2010US
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) METHOD AND APPARATUS FOR TRANSMITTING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM
(FR) PROCÉDÉ ET APPAREIL DE TRANSMISSION D'UN SIGNAL DE RÉFÉRENCE DANS UN SYSTÈME DE COMMUNICATION SANS FIL
(KO) 무선 통신 시스템에서 참조 신호 전송 방법 및 장치
Abstract
(EN)
The present invention relates to a method and an apparatus for transmitting a reference signal by a base station in a wireless communication system. The base station generates a channel state information (CSI) reference signal (RS) for each of a plurality of layers, performs mapping the plurality of CSI-RSs to a resource element set constituted by a plurality of resource elements (REs) in a subframe and transmits the subframe with the plurality of mapped CSI-RSs. The plurality of resource elements constituting the resource element set are resource elements that are arranged with constant subcarrier spacing in two neighboring orthogonal frequency division multiplexing (OFDM) symbols, and the subframe has an extended cyclic prefix (CP) structure including 12 OFDM symbols.
(FR)
L'invention concerne un procédé et un appareil de transmission d'un signal de référence par une station de base dans un système de communication sans fil. La station de base génère un signal de référence (RS) d'informations d'état de canal (CSI) pour chacune d'une pluralité de couches, réalise le mappage de la pluralité de signaux CSI-RS sur un groupe d'éléments de ressource constitué d'une pluralité d'éléments de ressource (RE) dans une sous-trame et transmet la sous-trame avec la pluralité de signaux CSI-RS mappés. La pluralité d'éléments de ressource constituant le groupe d'éléments de ressource sont des éléments de ressource caractérisés par un espacement constant entre les sous-porteuses dans deux symboles voisins de multiplexage par répartition orthogonale de la fréquence (OFDM), et la sous-trame présente une structure de préfixes cycliques (CP) étendue comportant 12 symboles OFDM.
(KO)
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.
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