Patent ID: 7793194

Claim:
A method for transmitting a signal having a double CRC (cyclic redundancy check) structure using two types of CRCs generated using different reading patterns from each other to a receiver by a transmitter, the method comprising: (a) attaching a first CRC to a first signal block having a first length; (b) segmenting the first data signal block attached with the first CRC into “C” second signal blocks having a second length when the first length is longer than a predetermined length, wherein “C” is an integer number greater than 2; (c) respectively attaching a second CRC to each of the second signal blocks; (d) channel coding the second signal blocks attached with the second CRC; and (e) transmitting the channel coded second signal blocks to the receiver, wherein the first CRC and second CRC are generated by using different reading patterns of the first signal block and the second signal block, respectively, and wherein the “C” is determined as C=┌B /( Z−L )┐, wherein “B” indicates a length corresponding to the first length plus the length of the first CRC, “Z” indicates a maximum length of the second length, and “L” indicates the length of the second CRC.