Patent ID: 8995583
Filing Date: 2015-03-31
Classification: H03M,H04L

Abstract:
1. A method of decoding a signal in a communication network, the method comprising: receiving a signal comprising information, wherein the signal is encoded by a tail-biting convolutional code; identifying a position in the signal related to a known portion of the information, wherein the known portion of the information includes a subset of a bit string of the information, wherein a length of the bit string is equal to or shorter than a memory of the convolutional code; initializing a Viterbi state metric consistent with the known portion of the information by assigning, to initial Viterbi states consistent with the known portion of the information, Viterbi weights that also account for further a-priori knowledge about additional information besides the known portion of the information, the additional information comprising an expected response; and decoding the encoded signal by means of a Wrap-Around Viterbi Algorithm (WAVA) using the initialized Viterbi state metric, wherein the decoding starts at a decoding step following the identified position.