Methods and apparatus to generate multiple CRCs

A method for communication, the method comprising:

• receiving a code block of bit sequence and a code block cyclic redundancy check;
• decoding the code block;
• checking the code block cyclic redundancy check based on a second cyclic redundancy check generator polynomial to determine whether the code block is correctly decoded;
• and
• when the code block contains a portion of a transport block, the transport block including a transport block cyclic redundancy check and having a number of bits of that is more than a maximum code block size,
• concatenating two or more correctly decoded code blocks to generate the transport block, and
• checking the transport block cyclic redundancy check of the transport block based on a first cyclic redundancy check generator polynomial to determine whether the transport block is correctly decoded.

An apparatus in a communication system, the apparatus comprising:

• a transport block generator configured to generate a transport block cyclic redundancy check of a transport block based on a first cyclic redundancy check generator polynomial;
• a code block generator configured to segment the transport block into a plurality of code blocks when a number of bits of the transport block including the transport block cyclic redundancy check is more than a maximum code block size and to generate a plurality of code block cyclic redundancy checks of the plurality of code blocks based on a second cyclic redundancy check generator polynomial, wherein each of the code block cyclic redundancy checks is generated based upon a corresponding code block, wherein one of the plurality of code blocks comprises a portion of the transport block and the transport block cyclic redundancy check;
• and
• at least one antenna configured to transmit at least one code block and at least one code block cyclic redundancy check.

An apparatus in a communication system, the apparatus comprising:

• at least one antenna configured to receive a plurality of code blocks of bit sequence and a plurality of code block cyclic redundancy checks;
• a code block decoding unit configured to decode the plurality of code blocks and to check the plurality of code block cyclic redundancy checks based on a second cyclic redundancy check generator polynomial to determine whether the plurality of code blocks is correctly decoded;
• and
• a transport block decoding unit configured, for each code block containing a portion of a transport block, the transport block including a transport block cyclic redundancy check and having a number of bits of that is more than a maximum code block size,
• to concatenate two or more correctly decoded code blocks to generate the transport block, and
• to check the transport block cyclic redundancy check of the transport block based on a first cyclic redundancy check generator polynomial to determine whether the transport block is correctly decoded,
• wherein one of the plurality of code blocks comprises a portion of the transport block and the transport block cyclic redundancy check.