| 发明名称 |
Channel State Information (CSI) Feedback and Subsampling |
| 摘要 |
A method implemented in a base station used in a wireless communications system is disclosed. The method comprises receiving, from a user equipment, rank indication (RI), a first precoding matrix indicator (PMI), and a second PMI, the RI and the first PMI being jointly encoded, wherein 5 bits are used for transmission of the jointly encoded RI and first PMI, and wherein first 8 values of values expressed by the 5 bits are used for RI=1, second 8 values of the values expressed by the 5 bits are used for RI=2, a third value of the values expressed by the 5 bits is used for RI=3, a fourth value of the values expressed by the 5 bits is used for RI=4, and remaining 14 values of the values expressed by the 5 bits are reserved. Other methods, apparatuses, and systems also are disclosed. |
| 申请公布号 |
US2014362783(A1) |
申请公布日期 |
2014.12.11 |
| 申请号 |
US201414295406 |
申请日期 |
2014.06.04 |
| 申请人 |
NEC LABORATORIES AMERICA, INC. |
发明人 |
Yue Guosen;Prasad Narayan;Rangarajan Sampath |
| 分类号 |
H04L5/00;H04B7/04;H04W24/10 |
主分类号 |
H04L5/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method implemented in a base station used in a wireless communications system, the method comprising:
receiving, from a user equipment, rank indication (RI), a first precoding matrix indicator (PMI), and a second PMI, the RI and the first PMI being jointly encoded, wherein 5 bits are used for transmission of the jointly encoded RI and first PMI, and wherein
first 8 values of values expressed by the 5 bits are used for RI=1,second 8 values of the values expressed by the 5 bits are used for RI=2,a third value of the values expressed by the 5 bits is used for RI=3,a fourth value of the values expressed by the 5 bits is used for RI=4, andremaining 14 values of the values expressed by the 5 bits are reserved. |
| 地址 |
Princeton NJ US |
