发明名称 |
Method of transmitting feedback data in a multiple antenna system |
摘要 |
A method of transmitting feedback data in a multiple antenna system comprises receiving a request message of feedback data on a downlink channel, the request message comprising uplink scheduling information, selecting a set of M (M≧1) subbands within a plurality of subbands, generating the feedback data, the feedback data comprising a frequency selective PMI (precoding matrix indicator), a frequency flat PMI, a best band CQI (channel quality indicator) and a whole band CQI, and transmitting the feedback data on a uplink channel allocated to the uplink scheduling information. |
申请公布号 |
US8804542(B2) |
申请公布日期 |
2014.08.12 |
申请号 |
US201213452020 |
申请日期 |
2012.04.20 |
申请人 |
LG Electronics Inc. |
发明人 |
Ko Hyun Soo;Ihm Bin Chul;Chun Jin Young;Lee Wook Bong;Lee Moon Il |
分类号 |
H04L12/26 |
主分类号 |
H04L12/26 |
代理机构 |
Lee, Hong, Degerman, Kang & Waimey |
代理人 |
Lee, Hong, Degerman, Kang & Waimey |
主权项 |
1. A transmitter for transmitting feedback data in a multiple antenna system, the transmitter comprising:
a processor configured to: receive a request message of feedback data on a downlink channel, the request message comprising uplink scheduling information; select a set of M subbands within a plurality of subbands, wherein M is greater than or equal to 1; generate the feedback data, the feedback data comprising a frequency selective precoding matrix indicator (PMI), a frequency flat PMI, a best band channel quality indicator (CQI) and a whole band CQI, the frequency selective PMI indicating an index of a precoding matrix selected from a codebook over the M selected subbands, the frequency flat PMI indicating an index of a precoding matrix selected from the codebook over the plurality of subbands, the best band CQI indicating a CQI value over the M selected subbands, the whole band CQI indicating a CQI value over the plurality of subbands; and transmit the feedback data on an uplink channel allocated to the uplink scheduling information. |
地址 |
Seoul KR |