Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2009-04-06
2011-10-25
Pham, Brenda H (Department: 2464)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C375S240070
Reexamination Certificate
active
08045528
ABSTRACT:
A feedback method for performing a feedback by using a codebook in Multiple Input Multiple Output (MIMO) system includes receiving, by the mobile station, a MIMO mode type information, generating feedback information by using the codebook selected according to the MIMO mode type information, and transmitting the feedback information to the base station. The codebook includes a SU-MIMO codebook and a MU-MIMO codebook, and the MU-MIMO codebook is formed by extracting codebook elements from the SU-MIMO codebook. As a result, the method maximizes a system throughput simultaneously while effectively reducing an amount of feedback information.
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Chun Jin Young
Ihm Bin Chul
Ko Hyun Soo
Lee Moon Il
Lee Wook Bong
LG Electronics Inc.
McKenna Long & Aldridge LLP
Pham Brenda H
LandOfFree
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