Patent ID: 9716516
Date: 2017-07-25
CPC Classifications: H03M,H04L

Claim:
1. A transmitting apparatus comprising: an encoder configured to encode input bits to generate a codeword comprising the input bits and parity bits, wherein the parity bits are generated based on a low density parity check (LDPC) code according to a code rate of 7/15 and a code length of 16200; an interleaver configured to split the codeword into a plurality of bit groups and interleave the plurality of bit groups to provide an interleaved codeword; a mapper configured to map bits of the interleaved codeword onto constellation points for 256-quadrature amplitude modulation (QAM); and a transmitter configured to transmit a signal based on the constellation points, wherein the interleaver is configured to interleave the plurality of bit groups using a following equation: where X wherein the π(j) is defined as a table below: