METHOD FOR TRANSMITTING AND RECEIVING DOWNLINK REFERENCE SIGNALS IN A WIRELESS COMMUNICATION SYSTEM HAVING MULTIPLE ANTENNAS

Title:

METHOD FOR TRANSMITTING AND RECEIVING DOWNLINK REFERENCE SIGNALS IN A WIRELESS COMMUNICATION SYSTEM HAVING MULTIPLE ANTENNAS

Document Type and Number:

WIPO Patent Application WO/2010/064854

Kind Code:

A3

Abstract:

A method for transmitting and receiving downlink Reference Signals (RSs) in a wireless communication system using multiple antennas is disclosed. The downlink RS transmission method includes transmitting a first Orthogonal Frequency Division Multiplexing (OFDM) symbol in which RSs for a plurality of antenna port of first group are allocated in a predetermined order along a frequency axis, RSs for a plurality of antenna port of second group are allocated in a predetermined order along the frequency axis, and the RSs for the plurality of antenna port of first group are multiplexed in Code Division Multiplexing (CDM) with the RSs for the plurality of antenna port of second group by pairing each of the plurality of antenna port of first group with one of the plurality of antenna port of second group, and transmitting a second OFDM symbol in which the RSs for the plurality of antenna port of first group and the RSs for the plurality of antenna port of second group are positioned in an RS pattern being a frequency-domain shift of an RS pattern of the first OFDM symbol.

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Inventors:

NOH YU JIN (KR)
YUN YOUNG WOO (KR)
LEE DAE WON (KR)
KIM BONG HOE (KR)
KIM KI JUN (KR)

Application Number:

PCT/KR2009/007182

Publication Date:

July 29, 2010

Filing Date:

December 03, 2009

Export Citation:

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Assignee:

LG ELECTRONICS INC (KR)
NOH YU JIN (KR)
YUN YOUNG WOO (KR)
LEE DAE WON (KR)
KIM BONG HOE (KR)
KIM KI JUN (KR)

International Classes:

H04B7/04; H04L27/26

Foreign References:

US20080260062A1	2008-10-23
KR20000047620A	2000-07-25
KR20030030640A	2003-04-18
KR20000039423A	2000-07-05

Attorney, Agent or Firm:

KIM, Yong In et al. (7th Floor Hyundae Building,175-9, Jamsil-dong, Songpa-ku, Seoul 138-861, KR)

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