发明名称 |
CODEBOOK SUB-SAMPLING FOR CSI FEEDBACK ON PUCCH FOR 4TX MIMO |
摘要 |
Channel state information (CSI) feedback in a wireless communication system is disclosed. User equipment transmits a CSI feedback signal via a Physical Uplink Control CHannel (PUCCH). If the UE is configured in a first feedback mode, the CSI comprises a first report jointly coding a Rank Indicator (RI) and a first precoding matrix indicator (PMI1), and a second report coding Channel Quality Indicator (CQI) and a second precoding matrix indicator (PMI2). If the UE is configured in a second feedback mode, the CSI comprises a first report coding RI, and a second report coding CQI, PMI1 and PMI2. The jointly coded RI and PMI1 employs codebook sub-sampling, and the jointly coding PMI1, PMI2 and CQI employs codebook sub-sampling. |
申请公布号 |
EP3033892(A1) |
申请公布日期 |
2016.06.22 |
申请号 |
EP20140753707 |
申请日期 |
2014.02.25 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
CHEN, Runhua;ONGGOSANUSI, Eko, N.;BENDLIN, Ralf, M. |
分类号 |
H04W4/00;H04J13/10;H04W24/00 |
主分类号 |
H04W4/00 |
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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