Transmission device, transmission method, reception device, and reception method

A transmission method comprising

• an encoding step of performing LDPC coding on a basis of a parity check matrix of an LDPC code with a code length N of 1224 bits and a coding rate r of 144/1224,
• wherein the parity check matrix includes:
• an A matrix on an upper left of the parity check matrix, of M1 rows and K columns represented by a predetermined value M1 and an information length K=N×r of the LDPC code;
• a B matrix of a staircase structure adjacent to a right of the A matrix, of M1 rows and M1 columns;
• a Z matrix that is a zero matrix adjacent to a right of the B matrix, of M1 rows and N−K−M1 columns;
• a C matrix adjacent under the A matrix and the B matrix, of N−K−M1 rows and K+M1 columns;
• and
• a D matrix that is an identity matrix adjacent to a right of the C matrix, of N−K−M1 rows and N−K−M1 columns,
• the predetermined value M1 is 108,
• the A matrix and the C matrix are represented by a parity check matrix initial value table,
• the parity check matrix initial value table is a table representing positions of elements of 1 of the A matrix and the C matrix for every 36 columns, and
• 7 36 107 167 173 350 489 510 577 643 716 789 960 979 1061 1076
• 53 75 103 336 349 396 414 480 488 490 513 559 610 622 827 1039
• 13 69 101 108 122 277 483 532 546 587 612 710 713 858 982 1025
• 10 32 72 282 420 441 482 553 784 808 977
• 139 178 778 803 813 1055
• 130 576 709 732 827 991
• 109 125 403 905 998 1068.

A reception device comprising

• a decoding unit that decodes an LDPC code obtained from data transmitted by a transmission method comprising
• an encoding step of performing LDPC coding on a basis of a parity check matrix of the LDPC code with a code length N of 1224 bits and a coding rate r of 144/1224,
• wherein the parity check matrix includes:
• an A matrix on an upper left of the parity check matrix, of M1 rows and K columns represented by a predetermined value M1 and an information length K=N×r of the LDPC code;
• a B matrix of a staircase structure adjacent to a right of the A matrix, of M1 rows and M1 columns;
• a Z matrix that is a zero matrix adjacent to a right of the B matrix, of M1 rows and N−K−M1 columns;
• a C matrix adjacent under the A matrix and the B matrix, of N−K−M1 rows and K+M1 columns;
• and
• a D matrix that is an identity matrix adjacent to a right of the C matrix, of N−K−M1 rows and N−K−M1 columns,
• the predetermined value M1 is 108,
• the A matrix and the C matrix are represented by a parity check matrix initial value table,
• the parity check matrix initial value table is a table representing positions of elements of 1 of the A matrix and the C matrix for every 36 columns, and
• 7 36 107 167 173 350 489 510 577 643 716 789 960 979 1061 1076
• 53 75 103 336 349 396 414 480 488 490 513 559 610 622 827 1039
• 13 69 101 108 122 277 483 532 546 587 612 710 713 858 982 1025
• 10 32 72 282 420 441 482 553 784 808 977
• 139 178 778 803 813 1055
• 130 576 709 732 827 991
• 109 125 403 905 998 1068.

A reception method comprising

• a decoding step of decoding an LDPC code obtained from data transmitted by a transmission method comprising
• an encoding step of performing LDPC coding on a basis of a parity check matrix of the LDPC code with a code length N of 1224 bits and a coding rate r of 144/1224,
• wherein the parity check matrix includes:
• an A matrix on an upper left of the parity check matrix, of M1 rows and K columns represented by a predetermined value M1 and an information length K=N×r of the LDPC code;
• a B matrix of a staircase structure adjacent to a right of the A matrix, of M1 rows and M1 columns;
• a Z matrix that is a zero matrix adjacent to a right of the B matrix, of M1 rows and N−K−M1 columns;
• a C matrix adjacent under the A matrix and the B matrix, of N−K−M1 rows and K+M1 columns;
• and
• a D matrix that is an identity matrix adjacent to a right of the C matrix, of N−K−M1 rows and N−K−M1 columns,
• the predetermined value M1 is 108,
• the A matrix and the C matrix are represented by a parity check matrix initial value table,
• the parity check matrix initial value table is a table representing positions of elements of 1 of the A matrix and the C matrix for every 36 columns, and
• 7 36 107 167 173 350 489 510 577 643 716 789 960 979 1061 1076
• 53 75 103 336 349 396 414 480 488 490 513 559 610 622 827 1039
• 13 69 101 108 122 277 483 532 546 587 612 710 713 858 982 1025
• 10 32 72 282 420 441 482 553 784 808 977
• 139 178 778 803 813 1055
• 130 576 709 732 827 991
• 109 125 403 905 998 1068.

A transmission device comprising

• an encoding unit that performs LDPC coding on a basis of a parity check matrix of an LDPC code with a code length N of 1152 bits and a coding rate r of 144/1152,
• wherein the parity check matrix includes:
• an A matrix on an upper left of the parity check matrix, of M1 rows and K columns represented by a predetermined value M1 and an information length K=N×r of the LDPC code;
• a B matrix of a staircase structure adjacent to a right of the A matrix, of M1 rows and M1 columns;
• a Z matrix that is a zero matrix adjacent to a right of the B matrix, of M1 rows and N−K−M1 columns;
• a C matrix adjacent under the A matrix and the B matrix, of N−K−M1 rows and K+M1 columns;
• and
• a D matrix that is an identity matrix adjacent to a right of the C matrix, of N−K−M1 rows and N−K−M1 columns,
• the predetermined value M1 is 144,
• the A matrix and the C matrix are represented by a parity check matrix initial value table,
• the parity check matrix initial value table is a table representing positions of elements of 1 of the A matrix and the C matrix for every 36 columns, and
• 9 70 143 150 170 202 349 475 620 732 806 1005
• 11 72 77 201 220 258 389 431 680 761 958
• 12 47 142 193 195 279 496 552 587 703 871
• 24 41 66 213 352 427 589 647 738 824 845
• 153 639 860 892 984
• 314 377 470 803 994
• 147 342 721 732 766
• 206 415 670 749 778.

A transmission method comprising

• an encoding step of performing LDPC coding on a basis of a parity check matrix of an LDPC code with a code length N of 1152 bits and a coding rate r of 144/1152,
• wherein the parity check matrix includes:
• an A matrix on an upper left of the parity check matrix, of M1 rows and K columns represented by a predetermined value M1 and an information length K=N×r of the LDPC code;
• a B matrix of a staircase structure adjacent to a right of the A matrix, of M1 rows and M1 columns;
• a Z matrix that is a zero matrix adjacent to a right of the B matrix, of M1 rows and N−K−M1 columns;
• a C matrix adjacent under the A matrix and the B matrix, of N−K−M1 rows and K+M1 columns;
• and
• a D matrix that is an identity matrix adjacent to a right of the C matrix, of N−K−M1 rows and N−K−M1 columns,
• the predetermined value M1 is 144,
• the A matrix and the C matrix are represented by a parity check matrix initial value table,
• the parity check matrix initial value table is a table representing positions of elements of 1 of the A matrix and the C matrix for every 36 columns, and
• 9 70 143 150 170 202 349 475 620 732 806 1005
• 11 72 77 201 220 258 389 431 680 761 958
• 12 47 142 193 195 279 496 552 587 703 871
• 24 41 66 213 352 427 589 647 738 824 845
• 153 639 860 892 984
• 314 377 470 803 994
• 147 342 721 732 766
• 206 415 670 749 778.

A reception device comprising

• a decoding unit that decodes an LDPC code obtained from data transmitted by a transmission method comprising
• an encoding step of performing LDPC coding on a basis of a parity check matrix of the LDPC code with a code length N of 1152 bits and a coding rate r of 144/1152,
• wherein the parity check matrix includes:
• an A matrix on an upper left of the parity check matrix, of M1 rows and K columns represented by a predetermined value M1 and an information length K=N×r of the LDPC code;
• a B matrix of a staircase structure adjacent to a right of the A matrix, of M1 rows and M1 columns;
• a Z matrix that is a zero matrix adjacent to a right of the B matrix, of M1 rows and N−K−M1 columns;
• a C matrix adjacent under the A matrix and the B matrix, of N−K−M1 rows and K+M1 columns;
• and
• a D matrix that is an identity matrix adjacent to a right of the C matrix, of N−K−M1 rows and N−K−M1 columns,
• the predetermined value M1 is 144,
• the A matrix and the C matrix are represented by a parity check matrix initial value table,
• the parity check matrix initial value table is a table representing positions of elements of 1 of the A matrix and the C matrix for every 36 columns, and
• 9 70 143 150 170 202 349 475 620 732 806 1005
• 11 72 77 201 220 258 389 431 680 761 958
• 12 47 142 193 195 279 496 552 587 703 871
• 24 41 66 213 352 427 589 647 738 824 845
• 153 639 860 892 984
• 314 377 470 803 994
• 147 342 721 732 766
• 206 415 670 749 778.

A reception method comprising

• a decoding step of decoding an LDPC code obtained from data transmitted by a transmission method comprising
• an encoding step of performing LDPC coding on a basis of a parity check matrix of the LDPC code with a code length N of 1152 bits and a coding rate r of 144/1152,
• wherein the parity check matrix includes:
• an A matrix on an upper left of the parity check matrix, of M1 rows and K columns represented by a predetermined value M1 and an information length K=N×r of the LDPC code;
• a B matrix of a staircase structure adjacent to a right of the A matrix, of M1 rows and M1 columns;
• a Z matrix that is a zero matrix adjacent to a right of the B matrix, of M1 rows and N−K−M1 columns;
• a C matrix adjacent under the A matrix and the B matrix, of N−K−M1 rows and K+M1 columns;
• and
• a D matrix that is an identity matrix adjacent to a right of the C matrix, of N−K−M1 rows and N−K−M1 columns,
• the predetermined value M1 is 144,
• the A matrix and the C matrix are represented by a parity check matrix initial value table,
• the parity check matrix initial value table is a table representing positions of elements of 1 of the A matrix and the C matrix for every 36 columns, and
• 9 70 143 150 170 202 349 475 620 732 806 1005
• 11 72 77 201 220 258 389 431 680 761 958
• 12 47 142 193 195 279 496 552 587 703 871
• 24 41 66 213 352 427 589 647 738 824 845
• 153 639 860 892 984
• 314 377 470 803 994
• 147 342 721 732 766
• 206 415 670 749 778.