Patent ID: 9043686
Filing Date: 2015-05-26
Classification: H03M,H04L

Abstract:
1. A method for decoding and checking a tail-biting convolutional code by a processor, comprising: re-sorting M routes of log-likelihood ratios r constructing a derivative sequence of a generator polynomial sequence of the tail-biting convolutional code, and performing forward path searching on the performing optimal path backtracking on a path with a largest state metric value in the forward path searching to obtain results of decoding the tail-biting convolutional code, and activating Cyclic Redundancy Check (CRC) checking of the results of decoding the tail-biting convolutional code during the optimal path backtracking; the method further comprising: reporting downlink control information obtained by decoding if the results of decoding the tail-biting convolutional code pass the CRC checking, otherwise discarding the results of decoding.