	US 11,929,864 B2
	Transmitting apparatus and mapping 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 Aug. 10, 2021, as Appl. No. 17/398,482.
Application 17/398,482 is a continuation of application No. 16/921,201, filed on Jul. 6, 2020, granted, now 11,115,259.
Application 16/921,201 is a continuation of application No. 16/113,186, filed on Aug. 27, 2018, granted, now 10,735,241, issued on Aug. 4, 2020.
Application 16/113,186 is a continuation of application No. 15/700,415, filed on Sep. 11, 2017, granted, now 10,063,345, issued on Aug. 28, 2018.
Application 15/700,415 is a continuation of application No. 14/716,013, filed on May 19, 2015, granted, now 9,780,916, issued on Oct. 3, 2017.
Prior Publication US 2021/0367827 A1, Nov. 25, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 27/34 (2006.01); H04L 27/26 (2006.01); H04L 1/00 (2006.01)

CPC H04L 27/34 (2013.01) [H04L 27/2647 (2013.01); H04L 1/0041 (2013.01); H04L 1/0057 (2013.01)]

4 Claims

1. A transmitting method comprising:

interleaving a codeword comprising input bits and parity bits;

de-multiplexing bits of the interleaved codeword to generate data cells; and

mapping the data cells to constellation points for 1024-quadrature amplitude modulation (QAM),

wherein the parity bits are generated by encoding the input bits based on a low density parity check (LDPC) code, a code rate of the LDPC code being 3/15, and

wherein each of the constellation points is represented in one of A+Bi, -A+Bi, A-Bi and -A-Bi,

where A is a real component, B is an imaginary component, and each of A and B comprises one of values listed below:


		0.2382
		0.2556
		0.2749
		0.2558
		0.2748
		0.2949
		0.2749
		0.2558
		0.9486
		0.8348
		0.7810
		0.8348
		0.9463
		0.8336
		0.9459
		1.4299.