A transmission method based on a Hybrid Automatic Repeat Request (HARQ) scheme for in a communication system. A codeword is generated using a Low Density Parity Check (LDPC) code. Parity bits of the codeword are classified on a basis of a transmission priority. Parity bits with an identical transmission...http://www.google.com/patents/US7934138?utm_source=gb-gplus-sharePatent US7934138 - Low density parity check code-based hybrid automatic repeat request method
