发明名称 |
Pre-coding for MIMO system |
摘要 |
The present invention discloses a pre-coding method for a MIMO system and an apparatus using the same. In the method, a receiver determines a corresponding codebook from a multi-codebook including multiple codebooks according to a location of a resource block, selects a corresponding codeword index from the determined codebook and transmits the index to a transmitter; the transmitter determines the corresponding codebook from the multi-codebook including multiple codebooks according to the location of the resource block where transmission data is to be transmitted, selects a corresponding codeword from the determined codebook according to the codeword index and performs pre-coding for the transmission data with the selected codeword. The pre-coding is performed with the multi-codebook in the present invention, which increases a diversity of pre-coding matrixes, so dynamic fluctuation range of a equivalent channel is improved and thus the performance of multi-user scheduling is enhanced effectively.
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申请公布号 |
EP1914947(A1) |
申请公布日期 |
2008.04.23 |
申请号 |
EP20070020307 |
申请日期 |
2007.10.17 |
申请人 |
NTT DOCOMO INC. |
发明人 |
SHE, XIAOMING;LIU, JINGXIU;CHEN, LAN;HIGUCHI, KENICHI |
分类号 |
H04J99/00;H04L25/03;H04B7/06;H04L1/06 |
主分类号 |
H04J99/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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