| 发明名称 |
USER EQUIPMENT APPARATUS AND METHOD FOR FEEDING BACK CHANNEL STATE INFORMATION IN A WIRELESS COMMUNICATION SYSTEM |
| 摘要 |
A method and apparatus are described for transmitting a channel state information (CSI) reporting at a user equipment (UE) in a wireless communication system. A rank indicator (RI) and a first type precoding matrix indicator (PMI) are transmitted to a base station (BS) according to a first CSI feedback type. A second type PMI and a channel quality information (CQI) are transmitted to the BS according to a second CSI feedback type. The RI and the first type PMI are jointly coded, and transmitted through a physical uplink control channel (PUCCH). A reporting period of the first type PMI is longer than a reporting period of the second type PMI. The first type PMI is a wideband PMI, and the second type PMI is a subband PMI. The reporting period of the first type PMI is equal to a reporting period of the RI. |
| 申请公布号 |
US2015063282(A1) |
申请公布日期 |
2015.03.05 |
| 申请号 |
US201414537743 |
申请日期 |
2014.11.10 |
| 申请人 |
LG ELECTRONICS INC. |
发明人 |
KIM Hyung Tae;SEO Han Byul;KIM Ki Jun;LEE Dae Won |
| 分类号 |
H04L5/00;H04B7/06;H04W72/04 |
主分类号 |
H04L5/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for transmitting a channel state information (CSI) reporting at a user equipment (UE) in a wireless communication system, the method comprising:
transmitting a rank indicator (RI) and a first type precoding matrix indicator (PMI) to a base station (BS) according to a first CSI feedback type; and transmitting a second type PMI and channel quality information (CQI) to the BS according to a second CSI feedback type, wherein the RI and the first type PMI are jointly coded, and transmitted through a physical uplink control channel (PUCCH), and wherein a reporting period of the first type PMI is longer than a reporting period of the second type PMI. |
| 地址 |
Seoul KR |
