发明名称 |
Method and apparatus for efficient feedback in a wireless communication system supporting multiple antennas |
摘要 |
A method and apparatus for performing effective feedback in a wireless communication system supporting multiple antennas. A method for transmitting CSI of downlink transmission via uplink in a wireless communication system includes transmitting a joint-coded rank indicator (RI) and a first wideband (WB) precoding matrix indicator (PMI) at a first subframe, and transmitting a wideband channel quality indicator (WB CQI) and a second WB PMI at a second subframe. A user equipment (UE) preferred precoding matrix is indicated by a combination of the first PMI and the second PMI. If the RI is Rank-1 or Rank-2, the first PMI indicates one of subsets each having 8 indexes from among 16 indexes of the first PMI of a precoding codebook. |
申请公布号 |
US8611243(B2) |
申请公布日期 |
2013.12.17 |
申请号 |
US201113244210 |
申请日期 |
2011.09.23 |
申请人 |
KO HYUNSOO;KIM SUNAM;LIM DONGGUK;LEE MOONIL;CHUNG JAEHOON;LG ELECTRONICS INC. |
发明人 |
KO HYUNSOO;KIM SUNAM;LIM DONGGUK;LEE MOONIL;CHUNG JAEHOON |
分类号 |
H04L1/00 |
主分类号 |
H04L1/00 |
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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