METHOD FOR DIGITAL SIGNAL TRANSMISSION OF ERROR CORRECTION CODING TYPE

摘要

PROBLEM TO BE SOLVED: To provide a digital transmission system especially for a channel including much interference with respect to a method for digital signal transmission of error correction type. SOLUTION: A coding procedure includes a plurality of basic coding steps related to each other in parallel and in series. A decoding procedure is repetitive, every repetition corresponds to the basic coding steps and includes basic decoding steps 50 each at least generating an attached information item. An intrinsic amount decision step 51 calculates an intrinsic amount on the basis of a set of weighted output information items generated in the step 50 processing a decoding sequence. A comparison step 53 is adapted to compare the intrinsic amount with a threshold decided in a threshold decision step 52. An interruption step 54 interrupts a decoding procedure in the step 50 when the intrinsic amount reaches the threshold. Thus, it is advantageous that the threshold value is decided to attain a trade-off between an efficiency allowed by the decoding procedure and the complexity of the decoding procedure in the step 52. Similarly the threshold is decided as a function of a required average transmission time or a function of a proper average energy consumption.