| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide techniques for using multiple description codes (MDC) for channel feedback to improve channel estimation accuracy.SOLUTION: A receiver obtains an initial/measured channel vector for a communication channel. The receiver selects a codebook in a set of codebooks for quantizing the initial channel vector. Each codebook includes a different set of channel vectors/codewords. Different codebooks are selected in different reporting intervals. The receiver selects a channel vector in the selected codebook, and the selected channel vector has (i) a largest correlation with a normalized channel vector or (ii) a smallest distance to the initial channel vector. The receiver sends the selected channel vector and possibly the selected codebook to a transmitter. The transmitter receives the selected/reported channel vectors from the receiver.</p> |
