US 9,813,191 B2
Transmitting apparatus and modulation method thereof
Se-ho Myung, Yongin-si (KR); Belkacem Mouhouche, Staines (GB); Daniel Ansorregui Lobete, Staines (GB); Kyung-joong Kim, Seoul (KR); and Hong-sil Jeong, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Feb. 5, 2015, as Appl. No. 14/615,148.
Claims priority of provisional application 61/945,868, filed on Feb. 28, 2014.
Claims priority of provisional application 61/936,029, filed on Feb. 5, 2014.
Claims priority of application No. 10-2015-0017971 (KR), filed on Feb. 5, 2015.
Prior Publication US 2015/0222471 A1, Aug. 6, 2015
Int. Cl. H04L 27/34 (2006.01); H04L 1/00 (2006.01)
CPC H04L 1/0043 (2013.01) [H04L 27/34 (2013.01); H04L 27/3411 (2013.01); H04L 27/3438 (2013.01); H04L 1/0058 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A transmitting method comprising:
encoding input bits to generate parity bits based on a low density parity check (LDPC) code;
interleaving a codeword comprising the input bits and the parity bits;
mapping bits of the interleaved codeword onto constellation points for 64-quadrature amplitude modulation (QAM); and
transmitting a signal comprising information regarding the constellation points onto which the bits of the interleaved codeword are mapped,
wherein the constellation points comprise constellation points as defined in a table below:
 
0.5472 + 1.1591i
0.5473 + 1.1573i
0.5467 + 1.1599i
0.5479 + 1.1585i
1.1578 + 0.5478i
1.1576 + 0.5475i
1.1591 + 0.5475i
1.1591 + 0.5475i
0.3163 + 0.5072i
0.3163 + 0.5072i
0.3163 + 0.5072i
0.3163 + 0.5072i
0.5087 + 0.3163i
0.5087 + 0.3163i
0.5087 + 0.3163i
 0.5087 + 0.3163i.