CYCLIC REDUNDANCY CHECK (CRC) CALCULATION METHOD AND DEVICE

摘要

The present application relates to the field of data communications, and provides a cyclic redundancy check (CRC) calculation method and device which are applicable to reducing time delay of CRC check calculation. The method comprises: calculating a first CRC of each of a plurality of sub-data blocks comprised in a data block, and calculating a second CRC of a first sequence associated with the each sub-data block, the first sequence associated with any sub-data block consisting of 1 and a full-zero sequence corresponding to the any sub-data block, and the lengths of all-zero sequences corresponding to different sub-data blocks being different; according to the first CRC of each sub-data block and the second CRC of the first sequence associated with the each sub-data block, determining a third CRC of the each sub-data block; and combining the third CRCs of each sub-data block to obtain a CRC of the data block.