| 摘要 |
PROBLEM TO BE SOLVED: To provide an iteration decoding system in which power consumption can be reduced. SOLUTION: The iteration decoding system is provided with first and second soft input and soft output decoders 2 and 3 for performing soft input and soft output decoding, an interleaver/deinterleaver for interleaving/deinterleaving reliability information likelihoods respectively outputted from the first and second soft input and soft output decoders and respectively supplying them to the second and first soft input and soft output decoders, a detection means for detecting the quality of a received signal, and a weighting means for multiplying a coefficient in which the value is high when the quality of the received signal is high and the value is low when the quality of the received signal is low, to at least one of the reliability information likelihood supplied from the first soft input and soft output decoder to the second soft input and soft output decoder and the reliability information likelihood supplied from the second soft input and soft output decoder to the first soft input and soft output decoder. COPYRIGHT: (C)2003,JPO
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