| 摘要 |
Apparatus and methods for recovering data from a control channel in wireless communications. A decoded codeword is obtained by convolutional decoding, the decoded codeword containing an estimate of a CRC codeword. A first syndrome for the CRC codeword is computed utilizing a parity check matrix of the CRC code. If the first syndrome is non-zero, the apparatus determines a location S and a length K of an error pattern within the CRC codeword based on a known interference period between transmission and reception, during which an error burst is assumed. A linear equation system is formed based on S, K and the parity check matrix of the CRC. The apparatus determines a solution of the linear system, wherein the solution includes an estimated error pattern. A recovered codeword can be determined by removing the estimated error pattern from the decoded codeword. |
