Invention Grant
US08457245B2 Method of transmitting precoding information in multiple antenna system
有权
在多天线系统中发送预编码信息的方法
- Patent Title: Method of transmitting precoding information in multiple antenna system
- Patent Title (中): 在多天线系统中发送预编码信息的方法
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Application No.: US12864656Application Date: 2009-01-29
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Publication No.: US08457245B2Publication Date: 2013-06-04
- Inventor: Hyun Soo Ko , Wook Bong Lee , Jae Hoon Chung , Bin Chul Ihm , Moon Il Lee
- Applicant: Hyun Soo Ko , Wook Bong Lee , Jae Hoon Chung , Bin Chul Ihm , Moon Il Lee
- Applicant Address: KR Seoul
- Assignee: LG Electronics Inc.
- Current Assignee: LG Electronics Inc.
- Current Assignee Address: KR Seoul
- Agency: Lee, Hong, Degerman, Kang & Waimey
- Priority: KR10-2008-0049283 20080527
- International Application: PCT/KR2009/000425 WO 20090129
- International Announcement: WO2009/096708 WO 20090806
- Main IPC: H04L27/00
- IPC: H04L27/00

Abstract:
A method of transmitting precoding information in a multiple antenna system includes selecting M subbands from a plurality of subbands constituting a whole frequency band in a descending order of a channel quality indicator (CQI), where M is an integer satisfying M>0, and transmitting a first precoding matrix indicator (PMI) for the M subbands and a second PMI for a remaining band, wherein the first PMI is a PMI of a codebook selected from a first codebook set including a plurality of codebooks and the second PMI is a PMI of a codebook selected from a second codebook set including a part of the plurality of codebooks of the first codebook set. Accordingly, precoding information can be effectively transmitted by separately preparing a codebook for a best band and a codebook for a non-selected band.
Public/Granted literature
- US20100310000A1 METHOD OF TRANSMITTING PRECODING INFORMATION IN MULTIPLE ANTENNA SYSTEM Public/Granted day:2010-12-09
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