| 发明名称 |
USER EQUIPMENT AND METHODS FOR CODEBOOK SUBSAMPLING FOR ENHANCED 4TX CODEBOOKS |
| 摘要 |
Embodiments of user equipment (UE) and methods for codebook subsampling for enhanced 4TX codebooks in 3GPP LTE wireless networks are generally described herein. In some embodiments, a physical uplink control channel (PUCCH) is configured for transmission of channel state information (CSI) feedback including a rank indicator (RI) and a precoding matrix (W1). The rank indicator (RI) and a precoding matrix (W1) are jointly encoded and codebook subsampling is performed for the enhanced 4Tx codebook for at least one of: PUCCH report type 5 (RI/1st PMI) in PUCCH 1-1 submode 1; PUCCH report type 2c (CQI/1st PMI/2nd PMI) in PUCCH 1-1 submode 2; and PUCCH report type 1a (subband CQI/2nd PMI) in PUCCH 2-1. |
| 申请公布号 |
US2014355705(A1) |
申请公布日期 |
2014.12.04 |
| 申请号 |
US201314108648 |
申请日期 |
2013.12.17 |
| 申请人 |
Chen Xiaogang;Zhu Yuan;Li Qinghua |
发明人 |
Chen Xiaogang;Zhu Yuan;Li Qinghua |
| 分类号 |
H04B7/04 |
主分类号 |
H04B7/04 |
| 代理机构 |
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代理人 |
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| 主权项 |
1. A method for codebook subsampling for enhanced 4TX codebooks in a 3GPP LTE network performed by user equipment (UE), the method comprising:
configuring a physical uplink control channel (PUCCH) for transmission of channel state information (CSI) feedback including a rank indicator (RI) and a precoding matrix (W1); jointly encoding a rank indicator (RI) and a precoding matrix (W1); and performing codebook subsampling for the enhanced 4Tx codebook for at least one of: PUCCH report type 5 (RI/1st PMI) in PUCCH 1-1 submode 1; PUCCH report type 2c (CQI/1st PMI/2nd PMI) in PUCCH 1-1 submode 2; and PUCCH report type 1a (subband CQI/2nd PMI) in PUCCH 2-1. |
| 地址 |
Beijing CN |
