Patent ID: 6543021
Filing Date: 2003-04-01
Classification: H03M

Abstract:
Method of transmitting information representing a physical quantity and represented by first binary symbols, having:a coding operation comprising an operation of calculating second binary symbols, referred to as calculated binary symbols, from the information, the calculated binary symbols being provided in order to be disposed in a square table, an operation of transferring the calculated binary symbols, comprising an operation of modulating the calculated binary symbols and an operation of demodulating the modulated symbols into symbols referred to as received symbols, an operation of correcting the received symbols, thus providing corrected symbols, and an operation of decoding the information from the corrected symbols, characterised in that, for each calculated binary symbol, there exist at least three distinct diagonals in the table which contain this calculated binary symbol and which, deprived of this calculated binary symbol, still allow each one on its own to recalculate the calculated binary symbol, the demodulating operation is performed by a soft decision method, and the correcting operation is performed iteratively with respect to each of the distinct diagonals.