Soft decoding of CRC component codes

摘要

Methods and devices are disclosed for encoding and decoding convolutional codes in a communication system. In various embodiments of the disclosure, a codeword comprises message data and parity data. A convolutional codeword is generated by multiplying the message data and the parity data with a convolutional polynomial. The convolutional codeword may be decoded by a convolutional code decoder that uses the convolutional polynomial and a maximum likelihood divisor to obtain a maximum likelihood message from the convolutional codeword.

主权项

1. A method of applying convolutional code decoding in a communication system, the method comprising:
receiving a noisy cyclic redundancy check (CRC) codeword; performing, using a processing device, Viterbi decoding of said noisy cyclic redundancy check codeword configured for decoding a rate 1 convolutional code comprising a generator polynomial, thereby generating a decoded cyclic redundancy check codeword; and processing said decoded cyclic redundancy check code word to generate a maximum likelihood message therefrom.