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1. WO2011010904 - METHOD FOR TRANSMITTING/RECEIVING A COMP REFERENCE SIGNAL

Publication Number WO/2011/010904
Publication Date 27.01.2011
International Application No. PCT/KR2010/004880
International Filing Date 26.07.2010
IPC
H04L 27/26 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
CPC
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
H04L 27/2613
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
2601Multicarrier modulation systems
2602Signal structure
261Details of reference signals
2613Structure of the reference signals per se
H04L 5/0035
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
003Arrangements for allocating sub-channels of the transmission path
0032Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
0035Resource allocation in a cooperative multipoint environment
H04L 5/0048
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
003Arrangements for allocating sub-channels of the transmission path
0048Allocation of pilot signals, i.e. of signals known to the receiver
H04W 72/042
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
72Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
04Wireless resource allocation
0406involving control information exchange between nodes
042in downlink direction of a wireless link, i.e. towards terminal
Applicants
  • 엘지전자 주식회사 LG ELECTRONICS INC. [KR]/[KR] (AllExceptUS)
  • 구자호 KOO, Ja Ho [KR]/[KR] (UsOnly)
  • 한승희 HAN, Seung Hee [KR]/[KR] (UsOnly)
  • 고현수 KO, Hyun Soo [KR]/[KR] (UsOnly)
  • 정재훈 CHUNG, Jae Hoon [KR]/[KR] (UsOnly)
  • 임빈철 IHM, Bin Chul [KR]/[KR] (UsOnly)
  • 이문일 LEE, Moon Il [KR]/[KR] (UsOnly)
Inventors
  • 구자호 KOO, Ja Ho
  • 한승희 HAN, Seung Hee
  • 고현수 KO, Hyun Soo
  • 정재훈 CHUNG, Jae Hoon
  • 임빈철 IHM, Bin Chul
  • 이문일 LEE, Moon Il
Agents
  • 김용인 KIM, Yong In
Priority Data
10-2009-012178809.12.2009KR
61/228,16424.07.2009US
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) METHOD FOR TRANSMITTING/RECEIVING A COMP REFERENCE SIGNAL
(FR) PROCÉDÉ POUR TRANSMETTRE/RECEVOIR UN SIGNAL DE RÉFÉRENCE COMP
(KO) CoMP 참조신호 송수신 방법
Abstract
(EN)
Disclosed is a method for transmitting a CoMP reference signal for accurate channel estimation. The CoMP reference signal to be transmitted to a terminal which performs a CoMP operation in a multi-cell environment is a cell-specific reference signal or a CoMP-zone-specific reference signal. A method for transmitting the cell-specific reference signal uses an ID of a CoMP set constituted by cells that perform a CoMP operation, or does not apply a frequency shift value while using the ID of a relevant cell, or uses an ID of a serving cell or a frequency shift value of the serving cell. The cell-specific reference signal is transmitted using a preset specific resource region. A method for transmitting the CoMP-zone-specific reference signal is configured such that the pattern of the sequence of CoMP reference signals varies in each of the CoMP zones, and the pattern can be set in advance. In addition, the reference signal is multiplexed and transmitted using an orthogonal code resource in the event the reference signal is transmitted to a plurality of terminals using the same CoMP zone.
(FR)
La présente invention concerne un procédé pour transmettre un signal de référence CoMP pour une estimation de canal précise. Le signal de référence CoMP destiné à être transmis à un terminal qui réalise une opération CoMP dans un environnement à cellules multiples est un signal de référence spécifique à une cellule ou un signal de référence spécifique à une zone CoMP. Un procédé pour transmettre le signal de référence spécifique à la cellule utilise une ID d'un jeu CoMP constitué par des cellules qui réalisent une opération CoMP, ou n'applique pas de valeur de glissement de fréquence tout en utilisant l'ID d'une cellule pertinente, ou utilise une ID d'une cellule de service ou une valeur de glissement de fréquence de la cellule de service. Le signal de référence spécifique à la cellule est transmis en utilisant une région de ressource spécifique prédéterminée. Un procédé pour transmettre le signal de référence spécifique à la zone CoMP est configuré pour que la configuration de la séquence des signaux de référence CoMP varie dans chacune des zones CoMP, et la configuration peut être réglée d'avance. En outre, le signal de référence est multiplexé et transmis en utilisant une ressource de codes orthogonaux au cas où le signal de référence est transmis à une pluralité de terminaux qui utilisent la même zone CoMP.
(KO)
정확한 채널 추정을 위한 CoMP 참조신호 송수신 방법이 개시된다. 다중 셀 환경에서 CoMP 동작을 수행하는 단말에게 전송할 CoMP 참조신호는 셀-특정 참조신호 또는 CoMP 존-특정 참조신호일 수 있다. 셀-특정 참조신호를 전송하는 방법으로, CoMP 동작을 수행하는 셀의 집합인 CoMP 세트의 ID를 이용하거나, 해당 셀의 ID를 이용하되 주파수 시프트값을 적용하지 않거나, 서빙 셀의 ID 및 서빙 셀의 주파수 시프트값을 이용하는 방법 등이 있다. 이러한 셀-특정 참조신호는 사전에 설정된 특정 자원 영역을 이용하여 전송될 수 있다. CoMP 존-특정 참조신호를 전송하는 방법으로, 각 CoMP 존 별로 CoMP 참조신호의 시퀀스의 패턴은 다를 수 있으며, 이는 사전에 설정될 수 있다. 또한, 동일한 CoMP 존을 이용하여 다수의 단말에게 전송하는 때에는 멀티플렉싱하고 직교 코드 자원을 이용할 수 있다.
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