Method and apparatus for channel estimation using multiple description codes
AssigneeQUALCOMM Incorporated
InventorsSiddhartha Mallik, Alexei Gorokhov
Life of this patent
Estimating the term…
Loading patent…
AssigneeQUALCOMM Incorporated
InventorsSiddhartha Mallik, Alexei Gorokhov
Estimating the term…
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.
A method of reporting channel feedback information, comprising:
An apparatus for reporting channel feedback information, comprising:
An apparatus for reporting channel feedback information, comprising:
A computer program product, comprising:
Dependencies are inferred from the claim text.