Transmitter, encoding apparatus, receiver, and decoding apparatus

摘要

An encoding apparatus includes a dividing unit that divides an input signal bit sequence into data blocks and an encoding unit that applies error correction encoding to the data blocks to generate code blocks decodable by repetitive decoding calculations for estimating the reliability of signal bits for a plurality of times and a generation unit that generates redundant bits by performing bit calculations between data blocks of each set combining the divided data blocks; and an output unit that outputs the generated code blocks and redundant bits.

主权项

1. A decoding apparatus comprising:
an input unit configured to input redundant bits generated between data blocks included in each set combining a plurality of data blocks obtained by dividing a signal bit sequence and code blocks obtained by applying error correction encoding to the data blocks; an in-block repetitive calculation unit configured to repeat a process, by using the code blocks as an input, to calculate reliability information of signal bits in the data blocks that are error-correction-encoded to the code blocks and further, by using the calculated reliability information as an input, to calculate new reliability information of the signal bits in the data blocks that are error-correction-encoded to the code blocks; and an inter-block repetitive calculation unit configured to repeat a process to calculate inter-block reliability information indicating the reliability of signal bits contributing to the generation of the redundant bits between the data blocks included in each set, based on the redundant bits generated between the data blocks included in each set and the reliability information of the signal bits in the data blocks, the reliability information repeatedly calculated by the in-block repetitive calculation unit, and to input the inter-block reliability information as reliability information of the signal bits to the in-block repetitive calculation unit.