Patent ID: 8707128
Filing Date: 2014-04-22
Classification: H03M,H04L

Abstract:
1. An encoding method of a transmission terminal in a broadcasting/communication system using a Low Density Parity Check (LDPC) code, the method comprising: performing a weight-1 position sequence conversion procedure on an initial parity check matrix; shortening an information word; generating a codeword by LDPC encoding the shortened information word using a parity check matrix generated by performing the weight-1 position sequence conversion procedure; and puncturing the codeword, wherein performing the weight-1 position sequence conversion procedure on the initial parity check matrix comprises: generating a weight-1 position sequence from the initial parity check matrix; applying a puncturing rule to a parity check matrix corresponding to the weight-1 position sequence; generating a first weight-1 position sequence using a weight-1 position sequence conversion; applying the puncturing rule to a parity check matrix corresponding to the first weight-1 position sequence; and generating a second weight-1 position sequence using the weight-1 position sequence conversion.