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)
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:
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)
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:
KR20080033060A | 2008-04-16 | |||
KR20070046976A | 2007-05-03 | |||
KR20080036939A | 2008-04-29 | |||
US20080225960A1 | 2008-09-18 |
Attorney, Agent or Firm:
KIM, Yong In et al. (KR)
김용인 (KR)
김용인 (KR)
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