发明名称 |
METHOD AND TERMINAL FOR FEEDING BACK CHANNEL STATE INFORMATION |
摘要 |
The present invention discloses a method and terminal for feeding back channel state information. The method comprises: a UE determining channel state information comprising a first type of PMI and a second type of PMI, wherein the first type of PMI is used for indicating an index of a first precoding matrix in a first precoding codebook, the first precoding matrix is used for mapping channel information of a wideband and/or long-term channel, the second PMI is used for indicating an index of a second precoding matrix in a second precoding codebook, the second precoding matrix is used for mapping channel information of a subband and/or short-term channel; the UE feeding back the channel state information on a PUSCH. The present invention enables a base station to dynamically select SU-MIMO or MU-MIMO transmission according to the practical channel condition so as to effectively improve the system performance. |
申请公布号 |
EP2584727(A1) |
申请公布日期 |
2013.04.24 |
申请号 |
EP20110797482 |
申请日期 |
2011.01.11 |
申请人 |
ZTE CORPORATION |
发明人 |
LI, RUYUE;XU, JUN;CHEN, YIJIAN;CAI, KE |
分类号 |
H04L1/06;H04L1/00;H04L5/00;H04L25/03;H04W72/04 |
主分类号 |
H04L1/06 |
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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