Patent ID: 9729174
Date: 2017-08-08
CPC Classifications: H03M,H04L

Claim:
1. A transmitting apparatus comprising: an encoder configured to encode input bits to generate parity bits based on a low density parity check code according to a code rate of 10/15 and a code length of 64800 bits; an interleaver configured to interleave the parity bits, split a codeword comprising the input bits and the interleaved parity bits into a plurality of bit groups and interleave the plurality of bit groups to provide an interleaved codeword; a mapper configured to generate modulation symbols by modulating the interleaved codeword according to 16-quadrature amplitude modulation; and a transmitter configured to transmit a signal comprising the modulation symbols generated by the mapper to a receiving device, wherein the plurality of bit groups comprise 180 bit groups, wherein each of the plurality of bit groups comprises 360 bits, wherein the plurality of bit groups are interleaved based on a following equation: where X wherein the π(j) is defined as follows: