Coding and decoding system using crc check bit

Details Coding and decoding system using crc check bit Coding and decoding system using crc check bit

H - Electricity

04

L

H04L 1/22 (2006.01) H03M 13/29 (2006.01) H04Q 7/22 (2006.01)

Patent

CA 2225574

A coding and decoding system which uses CRC check bits is disclosed. When a coding apparatus performs coding, symbol interleaving is performed after coding by an outer code of a concatenated code, and coding by an inner code is performed after CRC check bits are added. Then, upon decoding by a decoding apparatus, error detection using the CRC check bits is performed after decoding of the inner code. After symbol deinterleaving is performed, decoding of the outer code by erasure decoding or error correction is performed depending upon the number of symbols included in a frame in which an error has been detected.

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