| 发明名称 |
METHOD AND APPARATUS FOR TRANSMITTING CHANNEL STATE INFORMATION IN WIRELESS COMMUNICATION SYSTEM |
| 摘要 |
The present invention relates to a wireless communication system. According to one embodiment of the present invention, a method for transmitting, by a terminal, channel state information (CSI) in a wireless communication system comprises the steps of: subsampling a code book for four antenna ports; and feeding back the CSI on the basis of the subsampled code book, wherein the CSI includes a rank indicator (RI) reported together with a precoding type indicator (PTI), and if the RI is greater than 2, the PTI is set to one. |
| 申请公布号 |
US2015381253(A1) |
申请公布日期 |
2015.12.31 |
| 申请号 |
US201414767764 |
申请日期 |
2014.04.29 |
| 申请人 |
LG ELECTRONICS INC. |
发明人 |
Kim Hyungtae;Kim Kijun;Lee Hyunho |
| 分类号 |
H04B7/06;H04W72/04;H04B7/04 |
主分类号 |
H04B7/06 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for transmitting channel state information (CSI) by a user equipment in a wireless communication system, the method comprising:
subsampling a codebook for a 4 antenna port; and feeding back CSI based on the subsampled codebook, wherein: the CSI comprises a rank indicator (RI) reported together with a precoding type indicator (PTI); and when the RI is greater than 2, the PTI is set to 1. |
| 地址 |
Seoul KR |
