US 11,057,050 B2Granted

Transmitting apparatus and interleaving method thereof

AssigneeSamsung Electronics Co., Ltd.

InventorsSe-ho Myung, Hong-sil Jeong, Kyung-joong Kim

Life of this patent

Estimating the term…

Abstract

A transmitting apparatus is provided. The transmitting apparatus includes: an encoder configured to generate a low-density parity check (LDPC) codeword by LDPC encoding based on a parity check matrix; an interleaver configured to interleave the LDPC codeword; and a modulator configured to map the interleaved LDPC codeword onto a modulation symbol, wherein the modulator is further configured to map a bit included in a predetermined bit group from among a plurality of bit groups constituting the LDPC codeword onto a predetermined bit of the modulation symbol.

Claims6

Dependent claims

A receiving apparatus comprising:

a receiver configured to receive a signal from a transmitting apparatus;
a demodulator configured to demodulate the signal to generate values based on a 64-quadrature amplitude modulation (QAM);
a deinterleaver configured to split the values into a plurality of groups, and deinterleave the plurality of groups;
and
a decoder configured to decode values of the deinterleaved plurality of groups based on a low density parity check (LDPC) code, a code rate of the LDPC code being 8/15 and a code length of the LDPC code being 64800 bits,
wherein the plurality of groups are deinterleaved based on a following equation:
Yπ(j)=Xj for (0≤j≤Ngroup),
where xj is a jth group among the plurality of groups, Yj is a jth group among the deinterleaved plurality of groups, Ngroup is a number of the plurality of groups, and π(j) denotes a deinterleaving order for the deinterleaving, and
wherein the π(j) is represented as follows:
Order of the deinterleaving
π(j) (0 ≤ j < 180)
Code
0
1
2
3
4
5
6
7
8
9
10
11
Rate
23
24
25
26
27
28
29
30
31
32
33
34
46
47
48
49
50
51
52
53
54
55
56
57
69
70
71
72
73
74
75
76
77
78
79
80
92
93
94
95
96
97
98
99
100
101
102
103
115
116
117
118
119
120
121
122
123
124
125
126
138
139
140
141
142
143
144
145
146
147
148
149
161
162
163
164
165
166
167
168
169
170
171
172
8/15
86
71
51
48
89
94
46
81
67
49
80
37
42
91
62
50
90
40
78
53
58
47
85
70
77
95
66
59
83
73
17
87
3
75
65
88
9
121
108
139
142
24
34
20
157
159
138
143
27
26
16
98
102
103
133
161
21
25
107
153
68
134
41
74
179
2
129
169
101
99
109
127
13
39
7
164
106
172
154
149
10
173
131
167
104
124
177
97
130
118
137
111
126
120
105
115
π(j) (0 ≤ j < 180)
Code
12
13
14
15
16
17
18
19
20
21
22
Rate
35
36
37
38
39
40
41
42
43
44
45
58
59
60
61
62
63
64
65
66
67
68
81
82
83
84
85
86
87
88
89
90
91
104
105
106
107
108
109
110
111
112
113
114
127
128
129
130
131
132
133
134
135
136
137
150
151
152
153
154
155
156
157
158
159
160
173
174
175
176
177
178
179
8/15
55
61
36
57
52
92
60
82
76
72
44
4
69
43
54
84
93
38
8
64
6
18
79
14
151
117
32
22
123
30
33
162
144
29
140
163
150
175
114
31
12
35
145
28
45
156
23
125
141
56
166
5
1
170
119
168
176
11
0
122
110
113
146
132
165
19
63
147
155
100
171
158
160
15
178
148
152
136
112
96
135
116
174
128.

375 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/442,366Filed 14 Jun 2019 · continuation
Priority: 19 May 2015
Published: US 2019/0312595 A110 Oct 2019
Granted: 6 Jul 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification19 codes

H03M 13/1165
Quasi-cyclic LDPC [QC-LDPC] codes, i.e. the parity-check matrix being composed of permutation or circulant sub-matrices: qC-LDPC codes as defined…
H03M 13/1148
Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes: structural properties of the code parity-check or generator matrix
H03M 13/152
Using error location or error correction polynomials: bose-Chaudhuri-Hocquenghem [BCH] codes
H03M 13/255
Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded…: with…

Family

Application14/716,093Parent of this continuation · filed 19 May 2015
Application15/433,176Parent of this continuation · filed 15 Feb 2017
US 9,595,978 B2Parent of this continuation · filed 14 Mar 2017
US 2019/0312595 A1Pre-grant publication · published 10 Oct 2019
US 10,348,330 B2Parent of this continuation
US 2016/0344419 A1Published application
US 2017/0163289 A1Published application
US 11,057,050 B2This patent

From the US filing history. Foreign family members aren’t listed.

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Abstract

A receiving apparatus comprising:

a receiver configured to receive a signal from a transmitting apparatus;
a demodulator configured to demodulate the signal to generate values based on a 64-quadrature amplitude modulation (QAM);
a deinterleaver configured to split the values into a plurality of groups, and deinterleave the plurality of groups;
and
a decoder configured to decode values of the deinterleaved plurality of groups based on a low density parity check (LDPC) code, a code rate of the LDPC code being 8/15 and a code length of the LDPC code being 64800 bits,
wherein the plurality of groups are deinterleaved based on a following equation:
Yπ(j)=Xj for (0≤j≤Ngroup),
where xj is a jth group among the plurality of groups, Yj is a jth group among the deinterleaved plurality of groups, Ngroup is a number of the plurality of groups, and π(j) denotes a deinterleaving order for the deinterleaving, and
wherein the π(j) is represented as follows:
Order of the deinterleaving
π(j) (0 ≤ j < 180)
Code
0
1
2
3
4
5
6
7
8
9
10
11
Rate
23
24
25
26
27
28
29
30
31
32
33
34
46
47
48
49
50
51
52
53
54
55
56
57
69
70
71
72
73
74
75
76
77
78
79
80
92
93
94
95
96
97
98
99
100
101
102
103
115
116
117
118
119
120
121
122
123
124
125
126
138
139
140
141
142
143
144
145
146
147
148
149
161
162
163
164
165
166
167
168
169
170
171
172
8/15
86
71
51
48
89
94
46
81
67
49
80
37
42
91
62
50
90
40
78
53
58
47
85
70
77
95
66
59
83
73
17
87
3
75
65
88
9
121
108
139
142
24
34
20
157
159
138
143
27
26
16
98
102
103
133
161
21
25
107
153
68
134
41
74
179
2
129
169
101
99
109
127
13
39
7
164
106
172
154
149
10
173
131
167
104
124
177
97
130
118
137
111
126
120
105
115
π(j) (0 ≤ j < 180)
Code
12
13
14
15
16
17
18
19
20
21
22
Rate
35
36
37
38
39
40
41
42
43
44
45
58
59
60
61
62
63
64
65
66
67
68
81
82
83
84
85
86
87
88
89
90
91
104
105
106
107
108
109
110
111
112
113
114
127
128
129
130
131
132
133
134
135
136
137
150
151
152
153
154
155
156
157
158
159
160
173
174
175
176
177
178
179
8/15
55
61
36
57
52
92
60
82
76
72
44
4
69
43
54
84
93
38
8
64
6
18
79
14
151
117
32
22
123
30
33
162
144
29
140
163
150
175
114
31
12
35
145
28
45
156
23
125
141
56
166
5
1
170
119
168
176
11
0
122
110
113
146
132
165
19
63
147
155
100
171
158
160
15
178
148
152
136
112
96
135
116
174
128.

375 more elements

Facts

Application

16/442,366Filed 14 Jun 2019 · continuation

Priority

19 May 2015

Published

US 2019/0312595 A110 Oct 2019

Granted

6 Jul 2021

Term ends

Not estimatedThe source records don’t support an estimate.

Classification19 codes

H03M 13/1165
Quasi-cyclic LDPC [QC-LDPC] codes, i.e. the parity-check matrix being composed of permutation or circulant sub-matrices: qC-LDPC codes as defined…
H03M 13/1148
Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes: structural properties of the code parity-check or generator matrix
H03M 13/152
Using error location or error correction polynomials: bose-Chaudhuri-Hocquenghem [BCH] codes
H03M 13/255
Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded…: with…

Family

Application14/716,093Parent of this continuation · filed 19 May 2015

Application15/433,176Parent of this continuation · filed 15 Feb 2017

US 9,595,978 B2Parent of this continuation · filed 14 Mar 2017

US 2019/0312595 A1Pre-grant publication · published 10 Oct 2019

US 10,348,330 B2Parent of this continuation

US 2016/0344419 A1Published application

US 2017/0163289 A1Published application

US 11,057,050 B2This patent

From the US filing history. Foreign family members aren’t listed.