发明名称 |
METHOD AND TERMINAL FOR FEEDING BACK CHANNEL STATE INFORMATION |
摘要 |
<p>The present invention discloses method and terminal for feeding back channel state information. The method comprises: UE determining channel state information comprising first-type PMI and/or second-type PMI according to indication information, wherein first-type PMI is used for indicating index of one first precoding matrix in first precoding codebook, each first precoding matrix is used for mapping channel information of one wideband and/or long-term channel; second-type PMI is used for indicating index of one second precoding matrix in second precoding codebook, each second precoding matrix is used for mapping channel information of one subband and/or short-term channel; UE feeding back first-type PMI in PUCCH periodically and feeding back second-type PMI in PUSCH periodically or non-periodically, or, feeding back first-type PMI and second-type PMI in PUCCH. Through the present invention, precision of feeding back channel state information by UE is increased, and base station can dynamically select SU-MIMO or MU-MIMO transmission.</p> |
申请公布号 |
EP2566085(A4) |
申请公布日期 |
2013.09.18 |
申请号 |
EP20110774313 |
申请日期 |
2011.03.10 |
申请人 |
ZTE CORPORATION |
发明人 |
LI, RUYUE;XU, JUN;CHEN, YIJIAN;DAI, BO;ZHANG, JUNFENG |
分类号 |
H04L1/00;H04B7/04;H04B7/06;H04B7/08;H04B17/00;H04L1/16 |
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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