APPARATUS AND METHOD FOR CYCLIC REDUNDANCY CHECK

摘要

An apparatus and method for cyclic redundancy check device is provided. The apparatus includes a multiplicity of sub-block CRC parts configured to receive a bit sequence from each sub-block of a transport block that is divided into a multiplicity of sub-blocks and to perform CRC, and a Galois field adding part configured to add second codes, which are output from the multiplicity of sub-block CRC parts, in a Galois field, wherein each sub-block CRC part includes a Galois field multiplying part configured to generate a weight bit sequence by multiplying a first code, which is obtained from CRC calculation of a sub-block weight code that represents a weight allocated to each sub-block, and the bit sequence in the Galois field, and a linear feedback shift register including n-numbered registers and configured to output the second code by adding the weight bit sequence to each register in the Galois field.

主权项

1. An apparatus for cyclic redundancy check (CRC) operating with a polynomial having n degrees, the apparatus comprising:
a multiplicity of sub-block CRC parts configured to receive a bit sequence from each sub-block of a transport block that is divided into a multiplicity of sub-blocks and to perform CRC; and a Galois field adding part configured to add second codes, which are output from the multiplicity of sub-block CRC parts, in a Galois field, wherein each sub-block CRC part comprises: a Galois field multiplying part configured to generate a weight bit sequence by multiplying a first code, which is obtained from CRC calculation of a sub-block weight code that represents a weight allocated to each sub-block, and the bit sequence in the Galois field; and a linear feedback shift register including n-numbered registers and configured to output the second code by adding the weight bit sequence to each register in the Galois field.