Patent ID: 8086943
Filing Date: 2011-12-27
Classification: H03M

Abstract:
1. A method, comprising: receiving a set of input information, wherein the set of input information corresponds to a stream of symbols transmitted by an encoder system configured to perform a trellis coded modulation (TCM), wherein the TCM includes an inner encoding and a mapping, wherein the inner encoding encodes a first set of data to generate an intermediate set of data according to a rate 1 recursive code, wherein the mapping generates the stream of symbols from the intermediate set of data according to a first map, wherein the rate 1 recursive code and the first map maximize the effective free Euclidean distance of the inner encoding; performing a first SISO decoding operation on the set of input information to generate a first set of decoded information, wherein the first SISO decoding operation is for reversing the effects of the TCM encoding of the encoder system; generating a deinterleaved version of the first set of decoded information; and performing a second SISO decoding operation on the deinterleaved version of the first set of decoded information to generate a set of output information.