US 11,722,243 B2
Signalling coding and modulation method and demodulation and decoding method and device
Wenjun Zhang, Shanghai (CN); Yijun Shi, Shanghai (CN); Dazhi He, Shanghai (CN); Ge Huang, Shanghai (CN); Hongliang Xu, Shanghai (CN); and Yao Wang, Shanghai (CN)
Assigned to Shanghai National Engineering Research Center of Digital Television Co., Ltd., Shanghai (CN)
Filed by Shanghai National Engineering Research Center of Digital Television Co., Ltd., Shanghai (CN)
Filed on Feb. 28, 2022, as Appl. No. 17/652,927.
Application 17/652,927 is a continuation of application No. 16/748,739, filed on Jan. 21, 2020, granted, now 11,296,820.
Application 16/748,739 is a continuation of application No. 15/558,184, granted, now 10,594,435, issued on Mar. 17, 2020, previously published as PCT/CN2016/076129, filed on Mar. 11, 2016.
Claims priority of application No. 201510111992.X (CN), filed on Mar. 13, 2015; and application No. 201510125240.9 (CN), filed on Mar. 20, 2015.
Prior Publication US 2022/0190955 A1, Jun. 16, 2022
Int. Cl. H04L 1/00 (2006.01); H04N 21/438 (2011.01); H04N 21/2383 (2011.01); H03M 13/11 (2006.01); H03M 13/15 (2006.01); H03M 13/00 (2006.01)
CPC H04L 1/0041 (2013.01) [H03M 13/1102 (2013.01); H03M 13/152 (2013.01); H04L 1/0013 (2013.01); H04L 1/0065 (2013.01); H04L 1/0072 (2013.01); H04N 21/2383 (2013.01); H04N 21/438 (2013.01); H03M 13/6552 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A device for signaling coding and modulation, the device comprising:
a signaling coding and modulation device;
a sending end transmitter in communication with the signaling coding and modulation device:
wherein the signaling coding and modulation device is configured to:
scramble signaling and conducting BCH coding on the scrambled signaling to obtain BCH parity bits with a length of 168 bits;
splice the BCH parity bits to the end of the scrambled signaling to obtain a BCH codeword;
extend the BCH codeword according to an extension pattern table to obtain an extended BCH codeword with a length of 6480 bits;
conduct LDPC coding on the extended BCH codeword to generate an LDPC codeword based on a LDPC code with a code rate of 6/15 and a code length of 16200 bits, the LDPC codeword comprises the extended BCH codeword and parity bits;
conduct parity bit permutation on the parity bits in the LDPC codeword and splicing the permutated parity bits to the end of the extended BCH codeword in the LDPC codeword to obtain a permutated LDPC codeword;
according to a length of the signaling, puncture the permutated LDPC codeword according to a predetermined puncturing rule to obtain a punctured LDPC codeword; and
conduct bit rotation on a tuple sequence obtained by conducting predetermined processing based on the punctured LDPC codeword, and then mapping the rotated tuple sequence into signaling symbols according to 256QAM mapping rule.