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Title:
METHOD AND DEVICE FOR TRANSMITTING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2011/132942
Kind Code:
A3
Abstract:
Disclosed are a method and device for transmitting a reference signal in a wireless communication system. A base station: maps each demodulation reference signal (DMRS) of each of a plurality of layers into a first resource element (RE) set and a second resource element set including four resource elements over four orthogonal frequency division multiplexing (OFDM) symbols within a subframe; allocates first orthogonal cover codes (OCCs) having a length of 4 to each DMRS mapped into said first resource element set; allocates second OCCs having a length of 4 to each DMRS mapped into said second resource element set; and transmits each DMRS mapped into said first resource element set and said second resource element set. Said subframe includes two slots, and each slot includes six OFDM symbols. Said second OCCs are formed by respectively swapping positions of bits that constitute said first OCCs.

Inventors:
NOH MIN SEOK (KR)
LEE MOON IL (KR)
HAN SEUNG HEE (KR)
CHUNG JAE HOON (KR)
Application Number:
PCT/KR2011/002842
Publication Date:
January 12, 2012
Filing Date:
April 20, 2011
Export Citation:
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Assignee:
LG ELECTRONICS INC (KR)
NOH MIN SEOK (KR)
LEE MOON IL (KR)
HAN SEUNG HEE (KR)
CHUNG JAE HOON (KR)
International Classes:
H04L27/26; H04B7/26
Foreign References:
KR20100035565A2010-04-05
KR20100002108A2010-01-06
US20090201863A12009-08-13
Attorney, Agent or Firm:
YANG, Moon Ock (2F. Samheung Yeoksam Bldg.735-10 Yeoksam-dong, Gangnam-gu, Seoul 135-080, KR)
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