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Patent Searching and Data


Title:
METHOD FOR TRANSMITTING A REFERENCE SIGNAL IN A DOWNLINK MIMO SYSTEM
Document Type and Number:
WIPO Patent Application WO/2010/104321
Kind Code:
A2
Abstract:
The present invention relates to a method for transmitting a CRS (Common Reference Signal) for channel measurement in a downlink MIMO (Multi Input Multi Output) system which supports first user equipment that supports N transmitting antennas from among M transmitting antennas in total, and second user equipment that supports said M (wherein, M>N) transmitting antennas. The method comprises: a step in which a base station maps the CRS (Common Reference Signal) for said M transmitting antennas to a RE (Resource Element) of a subframe; and a step in which the base station transmits the subframe. The position of the RE to which the CRS for said M transmitting antennas is mapped in the subframe falls within the random even-numbered REs which are consecutively arranged in a frequency domain, excluding the RE to which a DRS (dedicated reference signal) for the first user equipment is mapped.

Inventors:
LEE MOON IL (KR)
KOO JA HO (KR)
CHUNG JAE HOON (KR)
IHM BIN CHUL (KR)
KO HYUN SOO (KR)
Application Number:
PCT/KR2010/001474
Publication Date:
September 16, 2010
Filing Date:
March 09, 2010
Export Citation:
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Assignee:
LG ELECTRONICS INC (KR)
LEE MOON IL (KR)
KOO JA HO (KR)
CHUNG JAE HOON (KR)
IHM BIN CHUL (KR)
KO HYUN SOO (KR)
International Classes:
H04B7/06; H04L27/26
Foreign References:
KR20080033060A2008-04-16
KR20070046976A2007-05-03
KR20080036939A2008-04-29
US20080225960A12008-09-18
Attorney, Agent or Firm:
KIM, Yong In et al. (KR)
김용인 (KR)
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