CONCATENATED BCH CODING METHOD, CODING APPARATUS, AND RELIABILITY BASED DECODING METHOD

摘要

The present invention relates to a concatenated BCH coding method, to a coding apparatus, and to a reliability based decoding method. The present invention concatenates multiple sub symbols in parallel on a row and a column. The present invention includes the following steps: receiving a message from outside; setting total side of the message, the number of matrix sub symbols (krB, kcB), index numbers (mr, mc), and error correction capabilities (tr, tc) in a range which satisfies an equation of {(-1-mrtr)×krB>=N, (-1-mctc)×kcB>=N}; and concatenated-BCH-coding the message by using the set parameters (N, krB, kcB, mr, mc, tr, tc).