发明名称 |
METHOD AND APPARATUS FOR CHANNEL ESTIMATION USING MULTIPLE DESCRIPTION CODES |
摘要 |
Techniques for using multiple description codes (MDC) for channel feedback to improve channel estimation accuracy are described. A receiver may obtain an initial/ measured channel vector for a communication channel. The receiver may select a codebook in a set of codebooks for quantizing the initial channel vector. Each codebook may include a different set of channel vectors/codewords. Different codebooks may be selected in different reporting intervals. The receiver may select a channel vector in the selected codebook, and the selected channel vector may have (i) a largest correlation with a normalized channel vector or (ii) a smallest distance to the initial channel vector. The receiver may send the selected channel vector and possibly the selected codebook to a transmitter. The transmitter may receive the selected/ reported channel vectors from the receiver in different reporting intervals and may derive a final channel vector for the communication channel based on the reported channel vectors. |
申请公布号 |
EP2386162(A1) |
申请公布日期 |
2011.11.16 |
申请号 |
EP20090760444 |
申请日期 |
2009.11.29 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
MALLIK, SIDDHARTHA;GOROKHOV, ALEXEI Y. |
分类号 |
H04L25/02;H04B7/02;H04L1/00 |
主分类号 |
H04L25/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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