WO 2026/068108 A1: Method for achieving relative decoding of an ofdm frame

Abstract

The invention relates to a method for decoding a coded frame at the output of a transmission channel, said coded frame comprising coded symbols including encoding on data relating to relative offsets between initial variables, the method comprising the following steps: - obtaining, from the coded frame, a tensor of relative distributions (P) comprising a plurality of relative distributions (Pi/i') representing probabilities of relative deviations between two given coded symbols (i, i'), - obtaining coding relationships (S) linking the coded symbols and translating relative relationships between the coded symbols, and supplementing them based on at least one symmetry and/or transitivity relationship between the relative distributions, - based on the coding relationships thus supplemented, expressing relative relationships between the relative distributions, - determining an estimate of decoded symbols via a probabilistic decoding processing operation using the coding relationships (S).