Patent ID: 10236911

Abstract:
A transmitting apparatus encodes information bits using a low density parity check (LDPC) encoder, which is configured to encode information bits to generate parity bits based on a parity check matrix. In some embodiments, the code rate is 8/15 and the code length is 64800. The transmitting apparatus also includes an interleaver configured to interleave an LDPC codeword including the information bits and parity bits and a mapper configured to map the interleaved LDPC codeword onto constellation points. In some embodiments, the parity check matrix comprises an information matrix part corresponding to the information bits and a parity matrix part corresponding to the parity bits. In some embodiments, the information matrix part is defined by a specific table indicating indices of rows at which a value “1” is positioned in a 0-th column of an i-th column group in the parity check matrix.