Data sequence decoding method for data encoded via binary convolution code uses MaxLogMAP algorithm for calculation of soft output values

摘要

The decoding method has metric values for all trellis segments (TSN) of a trellis diagram (TREL) calculated in a forwards and a backwards direction (FDP,BDP) using a MaxLogMAP algorithm in a first calculation operation, with selected values stored in a memory for use as interpolation points in a subsequent calculation operation, for providing additional interpolated metric values. The calculation operations are repeated to provide accurate soft output values.