| 发明名称 |
Codebook Construction |
| 摘要 |
A method implemented in a base station used in a wireless communications system is disclosed. The method comprises having 1-layer, 2-layer, 3-layer, and 4-layer codebooks for 4 transmit antenna (4TX) transmission, each codebook including a plurality of precoding matrices, precoding data with one of the plurality of precoding matrices, and transmitting, to a user equipment, the precoded data, wherein each of the 1-layer and 2-layer codebooks comprises a first codebook and a second codebook, and wherein each precoding matrix in the first codebook comprises a first index and a second index. Other apparatuses, systems, and methods also are disclosed. |
| 申请公布号 |
US2014241450(A1) |
申请公布日期 |
2014.08.28 |
| 申请号 |
US201414204838 |
申请日期 |
2014.03.11 |
| 申请人 |
NEC LABORATORIES AMERICA, INC. |
发明人 |
Prasad Narayan;Yue Guosen;Khojastepour Mohammad;Rangarajan Sampath |
| 分类号 |
H04B7/04 |
主分类号 |
H04B7/04 |
| 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:
having 1-layer, 2-layer, 3-layer, and 4-layer codebooks for 4 transmit antenna (4TX) transmission, each codebook including a plurality of precoding matrices; precoding data with one of the plurality of precoding matrices; and transmitting, to a user equipment, the precoded data, wherein each of the 1-layer and 2-layer codebooks comprises a first codebook and a second codebook, and wherein each precoding matrix in the first codebook comprises a first index and a second index. |
| 地址 |
Princeton NJ US |
