Patent ID: 9748975
Date: 2017-08-29
CPC Classifications: H03M,H04L

Claim:
1. An interleaving method of a transmitting apparatus, the interleaving method comprising: generating a codeword comprising information bits and parity bits, wherein the parity bits are generated based on a low density parity check code according to a code rate of 9/15 and a code length of 16200; interleaving the parity bits; splitting a codeword comprising the information bits and the interleaved parity bits into a plurality of bit groups; interleaving the plurality of bit groups to provide an interleaved codeword; mapping the interleaved codeword onto constellation points for 256-quadrature amplitude modulation; and transmitting, using a transmitter, a signal carrying the constellation points, wherein the plurality of bit groups are interleaved based on a following equation: where X wherein the π(j) is defined as follows: