METHOD AND APPARATUS FOR TRANSMITTING A REFERENCE SIGNAL IN A WIRELESS COMMUNICATION SYSTEM

WIPO Patent Application WO/2013/019016

A2

Provided is a method and apparatus for transmitting a reference signal by a base station in a multi-cell cooperative communication environment. The method for transmitting the reference signal according to the present invention comprises the steps of: transmitting cell ID information of a second cell to a terminal which uses a first cell as a serving cell; generating reference signal sequences in the first cell and the second cell on the basis of the same cell ID; and performing resource element mapping on each of the generated reference signals, generating signals, and transmitting the signals to the terminal, wherein the same cell ID used in generating the reference signal sequences is a cell ID of the first cell or a cell ID of the second cell. According to the present invention, problems of collision may be prevented which may otherwise occur due to different reference signal sequences being based on the respective cell IDs in cases where cell IDs of RRHs that form a coordinated multi-point (CoMP) set with specific cells such as macro cells in a CoMP environment are different from each other.

YOON SUNG JUN (KR)
LI JIAN JUN (KR)
PARK KYOUNG MIN (KR)

PCT/KR2012/005915

February 07, 2013

July 25, 2012

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PANTECH CO LTD (KR)
YOON SUNG JUN (KR)
LI JIAN JUN (KR)
PARK KYOUNG MIN (KR)

H04B7/04; H04J11/00

WO2011031079A2	2011-03-17
WO2011010904A2	2011-01-27
WO2010126316A2	2010-11-04
WO2010081166A2	2010-07-15
WO2011005537A2	2011-01-13

OH, JAE EON (KR)
오재언 (KR)

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