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Patent Searching and Data


Title:
METHOD AND BASE STATION FOR TRANSMITTING DOWNSTREAM LINK DATA, AND METHOD AND USER DEVICE FOR RECEIVING DOWNSTREAM LINK DATA
Document Type and Number:
WIPO Patent Application WO/2011/090282
Kind Code:
A3
Abstract:
The present invention relates to a method and apparatus which transmit/receive at least one demodulation reference signal by using a CDM group and/or a transmission rank of a user device that have been used to transmit the at least one demodulation reference signal for the user device, an OCC that has been used to extend the demodulation reference signal, etc. Also, the present invention relates to a method and apparatus which change an antenna port for transmitting the demodulation reference signal by using NDI for a deactivated transmission block.

Inventors:
LEE MOON IL (KR)
CHUNG JAE HOON (KR)
KO HYUN SOO (KR)
HAN SEUNG HEE (KR)
Application Number:
PCT/KR2011/000072
Publication Date:
November 03, 2011
Filing Date:
January 07, 2011
Export Citation:
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Assignee:
LG ELECTRONICS INC (KR)
LEE MOON IL (KR)
CHUNG JAE HOON (KR)
KO HYUN SOO (KR)
HAN SEUNG HEE (KR)
International Classes:
H04J13/12; H04B7/04
Other References:
"DM-RF Design for rank 5-8", 3GPP TSG RAN WG1 MEETING #58BIS, RL-094784, November 2009 (2009-11-01)
"DM-RF Design on extended CP for Rel-0 Dual-layer Beamforming", 3GPP TSG RAN WG1 MEETING #59, RL-094780, 9 November 2009 (2009-11-09) - 13 November 2009 (2009-11-13)
"Control signal Design for Rel-9 Dual-layer BF Transmission", 3GPP TSG RAN WG1 MEETING #57BIS, RL-092412, 29 June 2009 (2009-06-29) - 3 July 2009 (2009-07-03)
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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Claims: