发明名称 |
EFFICIENT SIGNALING FOR CLOSED-LOOP TRANSMIT DIVERSITY |
摘要 |
Techniques for encoding a phase adjustment for a feedback signal in a closed-loop transmit diversity system. In an aspect, codewords for the phase adjustments are chosen according to a variable-length prefix code. The prefix code aspect allows the codewords to be transmitted in sequence on the feedback channel without being separated by "commas" or demarcation symbols. The variable-length aspect provides a variety of coarse and fine phase adjustment quantization step sizes to accommodate multiple different channel scenarios. In an aspect, the length of the codewords may be further optimized according to the Huffman encoding algorithm. |
申请公布号 |
WO2011044525(A2) |
申请公布日期 |
2011.04.14 |
申请号 |
WO2010US52096 |
申请日期 |
2010.10.08 |
申请人 |
QUALCOMM INCORPORATED;TSAI, MING-CHANG;WU, ANN TSUEY JIUAN;CAI, HAILIANG |
发明人 |
TSAI, MING-CHANG;WU, ANN TSUEY JIUAN;CAI, HAILIANG |
分类号 |
H03M7/40;H04B7/216;H04L27/00 |
主分类号 |
H03M7/40 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|