FIELD: data decoding.
SUBSTANCE: soft decision decoding is performed on the first sub-code word in the set of sub-code words to obtain a hard decision result. Whether the decoding iteration should be skipped is determined. When a decoding iteration is not skipped, the first shutdown ID corresponding to the first sub-codeword is set to the first value based on the hard decision result. The first shutdown ID is used to indicate whether soft decision decoding should be performed on the first sub-code word in the next decoding iteration. Soft decision decoding is not performed on the first sub-code word in the next decoding iteration when the value indicated by the first shutdown ID is the first value. The result of a hard decision is preserved.
EFFECT: reduction of energy consumption during decoding.
17 cl, 14 dwg
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