US2015046766A1PendingUtilityA1
Data processing apparatus and data processing method
Est. expiryFeb 8, 2033(~6.5 yrs left)· nominal 20-yr term from priority
H03M 13/152H03M 13/2707H03M 13/1177H04L 1/0057H03M 13/255H03M 13/356H03M 13/271H03M 13/036H03M 13/1165H04L 1/0071H03M 13/2906H03M 13/1148H03M 13/1105
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Claims
Abstract
A data processing apparatus and a data processing method which enable provision of an LDPC code that achieves good error-rate performance. An LDPC encoding unit performs encoding using an LDPC code having a code length of 64800 bits and a code rate of 18/30, 19/30, 20/30, 21/30, 22/30, or 23/30. The LDPC code includes information bits and parity bits, and a parity check matrix H is composed of an information matrix portion corresponding to the information bits of the LDPC code, and a parity matrix portion corresponding to the parity bits. The information matrix portion of the parity check matrix H is represented by a parity check matrix initial value table that shows positions of elements of 1 in the information matrix portion in units of 360 columns. The apparatus and method may be applied to LDPC encoding and LDPC decoding.
Claims
exact text as granted — not AI-modified1 . A data processing apparatus comprising:
an encoding unit configured to encode information bits into an LDPC (Low Density Parity Check) code having a code length of 64800 bits and a code rate of 18/30 on the basis of a parity check matrix of the LDPC code, wherein the LDPC code includes information bits and parity bits, the parity check matrix includes an information matrix portion corresponding to the information bits and a parity matrix portion corresponding to the parity bits, the information matrix portion is represented by a parity check matrix initial value table, and the parity check matrix initial value table is a table showing positions of elements of 1 in the information matrix portion in units of 360 columns, including 113 1557 3316 5680 6241 10407 13404 13947 14040 14353 15522 15698 16079 17363 19374 19543 20530 22833 24339 271 1361 6236 7006 7307 7333 12768 15441 15568 17923 18341 20321 21502 22023 23938 25351 25590 25876 25910 73 605 872 4008 6279 7653 10346 10799 12482 12935 13604 15909 16526 19782 20506 22804 23629 24859 25600 1445 1690 4304 4851 8919 9176 9252 13783 16076 16675 17274 18806 18882 20819 21958 22451 23869 23999 24177 1290 2337 5661 6371 8996 10102 10941 11360 12242 14918 16808 20571 23374 24046 25045 25060 25662 25783 25913 28 42 1926 3421 3503 8558 9453 10168 15820 17473 19571 19685 22790 23336 23367 23890 24061 25657 25680 0 1709 4041 4932 5968 7123 8430 9564 10596 11026 14761 19484 20762 20858 23803 24016 24795 25853 25863 29 1625 6500 6609 16831 18517 18568 18738 19387 20159 20544 21603 21941 24137 24269 24416 24803 25154 25395 55 66 871 3700 11426 13221 15001 16367 17601 18380 22796 23488 23938 25476 25635 25678 25807 25857 25872 1 19 5958 8548 8860 11489 16845 18450 18469 19496 20190 23173 25262 25566 25668 25679 25858 25888 25915 7520 7690 8855 9183 14654 16695 17121 17854 18083 18428 19633 20470 20736 21720 22335 23273 25083 25293 25403 48 58 410 1299 3786 10668 18523 18963 20864 22106 22308 23033 23107 23128 23990 24286 24409 24595 25802 12 51 3894 6539 8276 10885 11644 12777 13427 14039 15954 17078 19053 20537 22863 24521 25087 25463 25838 3509 8748 9581 11509 15884 16230 17583 19264 20900 21001 21310 22547 22756 22959 24768 24814 25594 25626 25880 21 29 69 1448 2386 4601 6626 6667 10242 13141 13852 14137 18640 19951 22449 23454 24431 25512 25814 18 53 7890 9934 10063 16728 19040 19809 20825 21522 21800 23582 24556 25031 25547 25562 25733 25789 25906 4096 4582 5766 5894 6517 10027 12182 13247 15207 17041 18958 20133 20503 22228 24332 24613 25689 25855 25883 0 25 819 5539 7076 7536 7695 9532 13668 15051 17683 19665 20253 21996 24136 24890 25758 25784 25807 34 40 44 4215 6076 7427 7965 8777 11017 15593 19542 22202 22973 23397 23423 24418 24873 25107 25644 1595 6216 22850 25439 1562 15172 19517 22362 7508 12879 24324 24496 6298 15819 16757 18721 11173 15175 19966 21195 59 13505 16941 23793 2267 4830 12023 20587 8827 9278 13072 16664 14419 17463 23398 25348 6112 16534 20423 22698 493 8914 21103 24799 6896 12761 13206 25873 2 1380 12322 21701 11600 21306 25753 25790 8421 13076 14271 15401 9630 14112 19017 20955 212 13932 21781 25824 5961 9110 16654 19636 58 5434 9936 12770 6575 11433 19798 2731 7338 20926 14253 18463 25404 21791 24805 25869 2 11646 15850 6075 8586 23819 18435 22093 24852 2103 2368 11704 10925 17402 18232 9062 25061 25674 18497 20853 23404 18606 19364 19551 7 1022 25543 6744 15481 25868 9081 17305 25164 8 23701 25883 9680 19955 22848 56 4564 19121 5595 15086 25892 3174 17127 23183 19397 19817 20275 12561 24571 25825 7111 9889 25865 19104 20189 21851 549 9686 25548 6586 20325 25906 3224 20710 21637 641 15215 25754 13484 23729 25818 2043 7493 24246 16860 25230 25768 22047 24200 24902 9391 18040 19499 7855 24336 25069 23834 25570 25852 1977 8800 25756 6671 21772 25859 3279 6710 24444 24099 25117 25820 5553 12306 25915 48 11107 23907 10832 11974 25773 2223 17905 25484 16782 17135 20446 475 2861 3457 16218 22449 24362 11716 22200 25897 8315 15009 22633 13 20480 25852 12352 18658 25687 3681 14794 23703 30 24531 25846 4103 22077 24107 23837 25622 25812 3627 13387 25839 908 5367 19388 0 6894 25795 20322 23546 25181 8178 25260 25437 2449 13244 22565 31 18928 22741 1312 5134 14838 6085 13937 24220 66 14633 25670 47 22512 25472 8867 24704 25279 6742 21623 22745 147 9948 24178 8522 24261 24307 19202 22406 24609.
2 . The data processing apparatus according to claim 1 , wherein
where a row of the parity check matrix initial value table is represented by i and a parity length of the LDPC code is represented by M, a {2+360×(i−1)}-th column of the parity check matrix is a column obtained by cyclically shifting a {1+360×(i−1)}-th column of the parity check matrix, in which positions of elements of 1 are represented in the parity check matrix initial value table, downward by q, where q is equal to M/360.
3 . The data processing apparatus according to claim 2 , wherein
for the {1+360×(i−1)}-th column of the parity check matrix, an i-th row of the parity check matrix initial value table represents a row number of an element of 1 in the {1+360×(i−1)}-th column of the parity check matrix, and for each of the {2+360×(i−1)}-th to (360×i)-th columns, which are columns other than the {1+360×(i−1)}-th column of the parity check matrix, a row number H w-j of an element of 1 in a w-th column of the parity check matrix, which is a column other than the {1+360×(i−1)}-th column of the parity check matrix, is represented by equation H w-j =mod {h i,j +mod((w−1),360)×M/360, M), where h i,j denotes a value in the i-th row and a j-th column of the parity check matrix initial value table, and H w-j denotes a row number of a j-th element of 1 in the w-th column of the parity check matrix H.
4 . The data processing apparatus according to claim 2 , wherein q is 72.
5 . The data processing apparatus according to claim 1 , further comprising:
a parity interleaving unit configured to interleave only parity bits in code bits of the LDPC code.
6 . The data processing apparatus according to claim 1 , further comprising:
a column twist interleaving unit configured to perform column twist interleaving on the LDPC code by shifting code bits of the LDPC code in a column direction and storing the shifted code bits.
7 . The data processing apparatus according to claim 1 , further comprising:
a permutation unit configured to permute code bits of the LDPC code to replace the code bits of the LDPC code with symbol bits of a symbol corresponding to one of a certain number of constellation points defined by a certain digital modulation scheme.
8 . The data processing apparatus according to claim 7 , wherein
the permutation unit permutes the code bits that are stored in a column direction and that are read in a row direction.
9 . The data processing apparatus according to claim 1 , wherein
the parity check matrix is a parity check matrix that does not have cycle 4 .
10 . The data processing apparatus according to claim 1 , wherein
the parity check matrix is a parity check matrix of an LDPC code belonging to an ensemble of LDPC codes having a performance threshold less than or equal to a certain value, the performance threshold being an E b /N 0 at which a BER begins to drop and being detected using multi-edge type density evolution.
11 . A data processing method comprising:
an encoding step of encoding information bits into an LDPC (Low Density Parity Check) code having a code length of 64800 bits and a code rate of 18/30 on the basis of a parity check matrix of the LDPC code, wherein the LDPC code includes information bits and parity bits, the parity check matrix includes an information matrix portion corresponding to the information bits and a parity matrix portion corresponding to the parity bits, the information matrix portion is represented by a parity check matrix initial value table, and the parity check matrix initial value table is a table showing positions of elements of 1 in the information matrix portion in units of 360 columns, including 113 1557 3316 5680 6241 10407 13404 13947 14040 14353 15522 15698 16079 17363 19374 19543 20530 22833 24339 271 1361 6236 7006 7307 7333 12768 15441 15568 17923 18341 20321 21502 22023 23938 25351 25590 25876 25910 73 605 872 4008 6279 7653 10346 10799 12482 12935 13604 15909 16526 19782 20506 22804 23629 24859 25600 1445 1690 4304 4851 8919 9176 9252 13783 16076 16675 17274 18806 18882 20819 21958 22451 23869 23999 24177 1290 2337 5661 6371 8996 10102 10941 11360 12242 14918 16808 20571 23374 24046 25045 25060 25662 25783 25913 28 42 1926 3421 3503 8558 9453 10168 15820 17473 19571 19685 22790 23336 23367 23890 24061 25657 25680 0 1709 4041 4932 5968 7123 8430 9564 10596 11026 14761 19484 20762 20858 23803 24016 24795 25853 25863 29 1625 6500 6609 16831 18517 18568 18738 19387 20159 20544 21603 21941 24137 24269 24416 24803 25154 25395 55 66 871 3700 11426 13221 15001 16367 17601 18380 22796 23488 23938 25476 25635 25678 25807 25857 25872 1 19 5958 8548 8860 11489 16845 18450 18469 19496 20190 23173 25262 25566 25668 25679 25858 25888 25915 7520 7690 8855 9183 14654 16695 17121 17854 18083 18428 19633 20470 20736 21720 22335 23273 25083 25293 25403 48 58 410 1299 3786 10668 18523 18963 20864 22106 22308 23033 23107 23128 23990 24286 24409 24595 25802 12 51 3894 6539 8276 10885 11644 12777 13427 14039 15954 17078 19053 20537 22863 24521 25087 25463 25838 3509 8748 9581 11509 15884 16230 17583 19264 20900 21001 21310 22547 22756 22959 24768 24814 25594 25626 25880 21 29 69 1448 2386 4601 6626 6667 10242 13141 13852 14137 18640 19951 22449 23454 24431 25512 25814 18 53 7890 9934 10063 16728 19040 19809 20825 21522 21800 23582 24556 25031 25547 25562 25733 25789 25906 4096 4582 5766 5894 6517 10027 12182 13247 15207 17041 18958 20133 20503 22228 24332 24613 25689 25855 25883 0 25 819 5539 7076 7536 7695 9532 13668 15051 17683 19665 20253 21996 24136 24890 25758 25784 25807 34 40 44 4215 6076 7427 7965 8777 11017 15593 19542 22202 22973 23397 23423 24418 24873 25107 25644 1595 6216 22850 25439 1562 15172 19517 22362 7508 12879 24324 24496 6298 15819 16757 18721 11173 15175 19966 21195 59 13505 16941 23793 2267 4830 12023 20587 8827 9278 13072 16664 14419 17463 23398 25348 6112 16534 20423 22698 493 8914 21103 24799 6896 12761 13206 25873 2 1380 12322 21701 11600 21306 25753 25790 8421 13076 14271 15401 9630 14112 19017 20955 212 13932 21781 25824 5961 9110 16654 19636 58 5434 9936 12770 6575 11433 19798 2731 7338 20926 14253 18463 25404 21791 24805 25869 2 11646 15850 6075 8586 23819 18435 22093 24852 2103 2368 11704 10925 17402 18232 9062 25061 25674 18497 20853 23404 18606 19364 19551 7 1022 25543 6744 15481 25868 9081 17305 25164 8 23701 25883 9680 19955 22848 56 4564 19121 5595 15086 25892 3174 17127 23183 19397 19817 20275 12561 24571 25825 7111 9889 25865 19104 20189 21851 549 9686 25548 6586 20325 25906 3224 20710 21637 641 15215 25754 13484 23729 25818 2043 7493 24246 16860 25230 25768 22047 24200 24902 9391 18040 19499 7855 24336 25069 23834 25570 25852 1977 8800 25756 6671 21772 25859 3279 6710 24444 24099 25117 25820 5553 12306 25915 48 11107 23907 10832 11974 25773 2223 17905 25484 16782 17135 20446 475 2861 3457 16218 22449 24362 11716 22200 25897 8315 15009 22633 13 20480 25852 12352 18658 25687 3681 14794 23703 30 24531 25846 4103 22077 24107 23837 25622 25812 3627 13387 25839 908 5367 19388 0 6894 25795 20322 23546 25181 8178 25260 25437 2449 13244 22565 31 18928 22741 1312 5134 14838 6085 13937 24220 66 14633 25670 47 22512 25472 8867 24704 25279 6742 21623 22745 147 9948 24178 8522 24261 24307 19202 22406 24609.
12 - 20 . (canceled)
21 . A data processing apparatus comprising:
a decoding unit configured to decode an LDPC (Low Density Parity Check) code having a code length of 64800 bits and a code rate of 18/30 on the basis of a parity check matrix of the LDPC code, wherein the LDPC code includes information bits and parity bits, the parity check matrix includes an information matrix portion corresponding to the information bits and a parity matrix portion corresponding to the parity bits, the information matrix portion is represented by a parity check matrix initial value table, and the parity check matrix initial value table is a table showing positions of elements of 1 in the information matrix portion in units of 360 columns, including 113 1557 3316 5680 6241 10407 13404 13947 14040 14353 15522 15698 16079 17363 19374 19543 20530 22833 24339 271 1361 6236 7006 7307 7333 12768 15441 15568 17923 18341 20321 21502 22023 23938 25351 25590 25876 25910 73 605 872 4008 6279 7653 10346 10799 12482 12935 13604 15909 16526 19782 20506 22804 23629 24859 25600 1445 1690 4304 4851 8919 9176 9252 13783 16076 16675 17274 18806 18882 20819 21958 22451 23869 23999 24177 1290 2337 5661 6371 8996 10102 10941 11360 12242 14918 16808 20571 23374 24046 25045 25060 25662 25783 25913 28 42 1926 3421 3503 8558 9453 10168 15820 17473 19571 19685 22790 23336 23367 23890 24061 25657 25680 0 1709 4041 4932 5968 7123 8430 9564 10596 11026 14761 19484 20762 20858 23803 24016 24795 25853 25863 29 1625 6500 6609 16831 18517 18568 18738 19387 20159 20544 21603 21941 24137 24269 24416 24803 25154 25395 55 66 871 3700 11426 13221 15001 16367 17601 18380 22796 23488 23938 25476 25635 25678 25807 25857 25872 1 19 5958 8548 8860 11489 16845 18450 18469 19496 20190 23173 25262 25566 25668 25679 25858 25888 25915 7520 7690 8855 9183 14654 16695 17121 17854 18083 18428 19633 20470 20736 21720 22335 23273 25083 25293 25403 48 58 410 1299 3786 10668 18523 18963 20864 22106 22308 23033 23107 23128 23990 24286 24409 24595 25802 12 51 3894 6539 8276 10885 11644 12777 13427 14039 15954 17078 19053 20537 22863 24521 25087 25463 25838 3509 8748 9581 11509 15884 16230 17583 19264 20900 21001 21310 22547 22756 22959 24768 24814 25594 25626 25880 21 29 69 1448 2386 4601 6626 6667 10242 13141 13852 14137 18640 19951 22449 23454 24431 25512 25814 18 53 7890 9934 10063 16728 19040 19809 20825 21522 21800 23582 24556 25031 25547 25562 25733 25789 25906 4096 4582 5766 5894 6517 10027 12182 13247 15207 17041 18958 20133 20503 22228 24332 24613 25689 25855 25883 0 25 819 5539 7076 7536 7695 9532 13668 15051 17683 19665 20253 21996 24136 24890 25758 25784 25807 34 40 44 4215 6076 7427 7965 8777 11017 15593 19542 22202 22973 23397 23423 24418 24873 25107 25644 1595 6216 22850 25439 1562 15172 19517 22362 7508 12879 24324 24496 6298 15819 16757 18721 11173 15175 19966 21195 59 13505 16941 23793 2267 4830 12023 20587 8827 9278 13072 16664 14419 17463 23398 25348 6112 16534 20423 22698 493 8914 21103 24799 6896 12761 13206 25873 2 1380 12322 21701 11600 21306 25753 25790 8421 13076 14271 15401 9630 14112 19017 20955 212 13932 21781 25824 5961 9110 16654 19636 58 5434 9936 12770 6575 11433 19798 2731 7338 20926 14253 18463 25404 21791 24805 25869 2 11646 15850 6075 8586 23819 18435 22093 24852 2103 2368 11704 10925 17402 18232 9062 25061 25674 18497 20853 23404 18606 19364 19551 7 1022 25543 6744 15481 25868 9081 17305 25164 8 23701 25883 9680 19955 22848 56 4564 19121 5595 15086 25892 3174 17127 23183 19397 19817 20275 12561 24571 25825 7111 9889 25865 19104 20189 21851 549 9686 25548 6586 20325 25906 3224 20710 21637 641 15215 25754 13484 23729 25818 2043 7493 24246 16860 25230 25768 22047 24200 24902 9391 18040 19499 7855 24336 25069 23834 25570 25852 1977 8800 25756 6671 21772 25859 3279 6710 24444 24099 25117 25820 5553 12306 25915 48 11107 23907 10832 11974 25773 2223 17905 25484 16782 17135 20446 475 2861 3457 16218 22449 24362 11716 22200 25897 8315 15009 22633 13 20480 25852 12352 18658 25687 3681 14794 23703 30 24531 25846 4103 22077 24107 23837 25622 25812 3627 13387 25839 908 5367 19388 0 6894 25795 20322 23546 25181 8178 25260 25437 2449 13244 22565 31 18928 22741 1312 5134 14838 6085 13937 24220 66 14633 25670 47 22512 25472 8867 24704 25279 6742 21623 22745 147 9948 24178 8522 24261 24307 19202 22406 24609.
22 . The data processing apparatus according to claim 21 , wherein
where a row of the parity check matrix initial value table is represented by i and a parity length of the LDPC code is represented by M, a {2+360×(i−1)}-th column of the parity check matrix is a column obtained by cyclically shifting a {1+360×(i−1)}-th column of the parity check matrix, in which positions of elements of 1 are represented in the parity check matrix initial value table, downward by q, where q is equal to M/360.
23 . The data processing apparatus according to claim 22 , wherein
for the {1+360×(i−1)}-th column of the parity check matrix, an i-th row of the parity check matrix initial value table represents a row number of an element of 1 in the {1+360×(i−1)}-th column of the parity check matrix, and for each of the {2+360×(i−1)}-th to (360×i)-th columns, which are columns other than the {1+360×(i−1)}-th column of the parity check matrix, a row number H w-j of an element of 1 in a w-th column of the parity check matrix, which is a column other than the {1+360×(i−1)}-th column of the parity check matrix, is represented by equation H w-j =mod {h i,j +mod((w−1),360)×M/360, M), where h i,j denotes a value in the i-th row and a j-th column of the parity check matrix initial value table, and H w-j denotes a row number of a j-th element of 1 in the w-th column of the parity check matrix H.
24 . The data processing apparatus according to claim 22 , wherein q is 72.
25 . The data processing apparatus according to claim 21 , further comprising:
a column twist deinterleaving unit configured to perform column twist deinterleaving on the LDPC code to restore code bits of the LDPC code to an original order in a case where column twist interleaving has been performed on the LDPC code by shifting the code bits the LDPC code in a column direction and storing the shifted code bits.
26 . The data processing apparatus according to claim 21 , further comprising:
an inverse permutation unit configured to perform inverse permutation processing on the LDPC code, in a case where permutation processing has been performed on the LDPC code to replace code bits of the LDPC code with symbol bits of a symbol corresponding to one of a certain number of constellation points defined by a certain digital modulation scheme, to restore the code bits whose positions have been replaced with the symbol bits to original positions.
27 . The data processing apparatus according to claim 26 , wherein
the inverse permutation unit performs inverse permutation processing to restore the code bits that are stored in a row direction and that are read in a column direction to original positions.
28 . The data processing apparatus according to claim 21 , wherein
the parity check matrix is a parity check matrix that does not have cycle 4 .
29 . The data processing apparatus according to claim 21 , wherein
the parity check matrix is a parity check matrix of an LDPC code belonging to an ensemble of LDPC codes having a performance threshold less than or equal to a certain value, the performance threshold being an E b /N 0 at which a BER begins to drop and being detected using multi-edge type density evolution.
30 . A data processing method comprising:
a decoding step of decoding an LDPC (Low Density Parity Check) code having a code length of 64800 bits and a code rate of 18/30 on the basis of a parity check matrix of the LDPC code, wherein the LDPC code includes information bits and parity bits, the parity check matrix includes an information matrix portion corresponding to the information bits and a parity matrix portion corresponding to the parity bits, the information matrix portion is represented by a parity check matrix initial value table, and the parity check matrix initial value table is a table showing positions of elements of 1 in the information matrix portion in units of 360 columns, including 113 1557 3316 5680 6241 10407 13404 13947 14040 14353 15522 15698 16079 17363 19374 19543 20530 22833 24339 271 1361 6236 7006 7307 7333 12768 15441 15568 17923 18341 20321 21502 22023 23938 25351 25590 25876 25910 73 605 872 4008 6279 7653 10346 10799 12482 12935 13604 15909 16526 19782 20506 22804 23629 24859 25600 1445 1690 4304 4851 8919 9176 9252 13783 16076 16675 17274 18806 18882 20819 21958 22451 23869 23999 24177 1290 2337 5661 6371 8996 10102 10941 11360 12242 14918 16808 20571 23374 24046 25045 25060 25662 25783 25913 28 42 1926 3421 3503 8558 9453 10168 15820 17473 19571 19685 22790 23336 23367 23890 24061 25657 25680 0 1709 4041 4932 5968 7123 8430 9564 10596 11026 14761 19484 20762 20858 23803 24016 24795 25853 25863 29 1625 6500 6609 16831 18517 18568 18738 19387 20159 20544 21603 21941 24137 24269 24416 24803 25154 25395 55 66 871 3700 11426 13221 15001 16367 17601 18380 22796 23488 23938 25476 25635 25678 25807 25857 25872 1 19 5958 8548 8860 11489 16845 18450 18469 19496 20190 23173 25262 25566 25668 25679 25858 25888 25915 7520 7690 8855 9183 14654 16695 17121 17854 18083 18428 19633 20470 20736 21720 22335 23273 25083 25293 25403 48 58 410 1299 3786 10668 18523 18963 20864 22106 22308 23033 23107 23128 23990 24286 24409 24595 25802 12 51 3894 6539 8276 10885 11644 12777 13427 14039 15954 17078 19053 20537 22863 24521 25087 25463 25838 3509 8748 9581 11509 15884 16230 17583 19264 20900 21001 21310 22547 22756 22959 24768 24814 25594 25626 25880 21 29 69 1448 2386 4601 6626 6667 10242 13141 13852 14137 18640 19951 22449 23454 24431 25512 25814 18 53 7890 9934 10063 16728 19040 19809 20825 21522 21800 23582 24556 25031 25547 25562 25733 25789 25906 4096 4582 5766 5894 6517 10027 12182 13247 15207 17041 18958 20133 20503 22228 24332 24613 25689 25855 25883 0 25 819 5539 7076 7536 7695 9532 13668 15051 17683 19665 20253 21996 24136 24890 25758 25784 25807 34 40 44 4215 6076 7427 7965 8777 11017 15593 19542 22202 22973 23397 23423 24418 24873 25107 25644 1595 6216 22850 25439 1562 15172 19517 22362 7508 12879 24324 24496 6298 15819 16757 18721 11173 15175 19966 21195 59 13505 16941 23793 2267 4830 12023 20587 8827 9278 13072 16664 14419 17463 23398 25348 6112 16534 20423 22698 493 8914 21103 24799 6896 12761 13206 25873 2 1380 12322 21701 11600 21306 25753 25790 8421 13076 14271 15401 9630 14112 19017 20955 212 13932 21781 25824 5961 9110 16654 19636 58 5434 9936 12770 6575 11433 19798 2731 7338 20926 14253 18463 25404 21791 24805 25869 2 11646 15850 6075 8586 23819 18435 22093 24852 2103 2368 11704 10925 17402 18232 9062 25061 25674 18497 20853 23404 18606 19364 19551 7 1022 25543 6744 15481 25868 9081 17305 25164 8 23701 25883 9680 19955 22848 56 4564 19121 5595 15086 25892 3174 17127 23183 19397 19817 20275 12561 24571 25825 7111 9889 25865 19104 20189 21851 549 9686 25548 6586 20325 25906 3224 20710 21637 641 15215 25754 13484 23729 25818 2043 7493 24246 16860 25230 25768 22047 24200 24902 9391 18040 19499 7855 24336 25069 23834 25570 25852 1977 8800 25756 6671 21772 25859 3279 6710 24444 24099 25117 25820 5553 12306 25915 48 11107 23907 10832 11974 25773 2223 17905 25484 16782 17135 20446 475 2861 3457 16218 22449 24362 11716 22200 25897 8315 15009 22633 13 20480 25852 12352 18658 25687 3681 14794 23703 30 24531 25846 4103 22077 24107 23837 25622 25812 3627 13387 25839 908 5367 19388 0 6894 25795 20322 23546 25181 8178 25260 25437 2449 13244 22565 31 18928 22741 1312 5134 14838 6085 13937 24220 66 14633 25670 47 22512 25472 8867 24704 25279 6742 21623 22745 147 9948 24178 8522 24261 24307 19202 22406 24609.
31 - 50 . (canceled)
51 . A data processing apparatus comprising:
an encoding unit configured to encode information bits into an LDPC (Low Density Parity Check) code having a code length of 64800 bits and a code rate of 22/30 on the basis of a parity check matrix of the LDPC code, wherein the LDPC code includes information bits and parity bits, the parity check matrix includes an information matrix portion corresponding to the information bits and a parity matrix portion corresponding to the parity bits, the information matrix portion is represented by a parity check matrix initial value table, and the parity check matrix initial value table is a table showing positions of elements of 1 in the information matrix portion in units of 360 columns, including 696 989 1238 3091 3116 3738 4269 6406 7033 8048 9157 10254 12033 16456 16912 444 1488 6541 8626 10735 12447 13111 13706 14135 15195 15947 16453 16916 17137 17268 401 460 992 1145 1576 1678 2238 2320 4280 6770 10027 12486 15363 16714 17157 1161 3108 3727 4508 5092 5348 5582 7727 11793 12515 12917 13362 14247 16717 17205 542 1190 6883 7911 8349 8835 10489 11631 14195 15009 15454 15482 16632 17040 17063 17 487 776 880 5077 6172 9771 11446 12798 16016 16109 16171 17087 17132 17226 1337 3275 3462 4229 9246 10180 10845 10866 12250 13633 14482 16024 16812 17186 17241 15 980 2305 3674 5971 8224 11499 11752 11770 12897 14082 14836 15311 16391 17209 0 3926 5869 8696 9351 9391 11371 14052 14172 14636 14974 16619 16961 17033 17237 3033 5317 6501 8579 10698 12168 12966 14019 15392 15806 15991 16493 16690 17062 17090 981 1205 4400 6410 11003 13319 13405 14695 15846 16297 16492 16563 16616 16862 16953 1725 4276 8869 9588 14062 14486 15474 15548 16300 16432 17042 17050 17060 17175 17273 1807 5921 9960 10011 14305 14490 14872 15852 16054 16061 16306 16799 16833 17136 17262 2826 4752 6017 6540 7016 8201 14245 14419 14716 15983 16569 16652 17171 17179 17247 1662 2516 3345 5229 8086 9686 11456 12210 14595 15808 16011 16421 16825 17112 17195 2890 4821 5987 7226 8823 9869 12468 14694 15352 15805 16075 16462 17102 17251 17263 3751 3890 4382 5720 10281 10411 11350 12721 13121 14127 14980 15202 15335 16735 17123 26 30 2805 5457 6630 7188 7477 7556 11065 16608 16859 16909 16943 17030 17103 40 4524 5043 5566 9645 10204 10282 11696 13080 14837 15607 16274 17034 17225 17266 904 3157 6284 7151 7984 11712 12887 13767 15547 16099 16753 16829 17044 17250 17259 7 311 4876 8334 9249 11267 14072 14559 15003 15235 15686 16331 17177 17238 17253 4410 8066 8596 9631 10369 11249 12610 15769 16791 16960 17018 17037 17062 17165 17204 24 8261 9691 10138 11607 12782 12786 13424 13933 15262 15795 16476 17084 17193 17220 88 11622 14705 15890 304 2026 2638 6018 1163 4268 11620 17232 9701 11785 14463 17260 4118 10952 12224 17006 3647 10823 11521 12060 1717 3753 9199 11642 2187 14280 17220 14787 16903 17061 381 3534 4294 3149 6947 8323 12562 16724 16881 7289 9997 15306 5615 13152 17260 5666 16926 17027 4190 7798 16831 4778 10629 17180 10001 13884 15453 6 2237 8203 7831 15144 15160 9186 17204 17243 9435 17168 17237 42 5701 17159 7812 14259 15715 39 4513 6658 38 9368 11273 1119 4785 17182 5620 16521 16729 16 6685 17242 210 3452 12383 466 14462 16250 10548 12633 13962 1452 6005 16453 22 4120 13684 5195 11563 16522 5518 16705 17201 12233 14552 15471 6067 13440 17248 8660 8967 17061 8673 12176 15051 5959 15767 16541 3244 12109 12414 31 15913 16323 3270 15686 16653 24 7346 14675 12 1531 8740 6228 7565 16667 16936 17122 17162 4868 8451 13183 3714 4451 16919 11313 13801 17132 17070 17191 17242 1911 11201 17186 14 17190 17254 11760 16008 16832 14543 17033 17278 16129 16765 17155 6891 15561 17007 12741 14744 17116 8992 16661 17277 1861 11130 16742 4822 13331 16192 13281 14027 14989 38 14887 17141 10698 13452 15674 4 2539 16877 857 17170 17249 11449 11906 12867 285 14118 16831 15191 17214 17242 39 728 16915 2469 12969 15579 16644 17151 17164 2592 8280 10448 9236 12431 17173 9064 16892 17233 4526 16146 17038 31 2116 16083 15837 16951 17031 5362 8382 16618 6137 13199 17221 2841 15068 17068 24 3620 17003 9880 15718 16764 1784 10240 17209 2731 10293 10846 3121 8723 16598 8563 15662 17088 13 1167 14676 29 13850 15963 3654 7553 8114 23 4362 14865 4434 14741 16688 8362 13901 17244 13687 16736 17232 46 4229 13394 13169 16383 16972 16031 16681 16952 3384 9894 12580 9841 14414 16165 5013 17099 17115 2130 8941 17266 6907 15428 17241 16 1860 17235 2151 16014 16643 14954 15958 17222 3969 8419 15116 31 15593 16984 11514 16605 17255.
52 . A data processing method comprising:
an encoding step of encoding information bits into an LDPC (Low Density Parity Check) code having a code length of 64800 bits and a code rate of 22/30 on the basis of a parity check matrix of the LDPC code, wherein the LDPC code includes information bits and parity bits, the parity check matrix includes an information matrix portion corresponding to the information bits and a parity matrix portion corresponding to the parity bits, the information matrix portion is represented by a parity check matrix initial value table, and the parity check matrix initial value table is a table showing positions of elements of 1 in the information matrix portion in units of 360 columns, including 696 989 1238 3091 3116 3738 4269 6406 7033 8048 9157 10254 12033 16456 16912 444 1488 6541 8626 10735 12447 13111 13706 14135 15195 15947 16453 16916 17137 17268 401 460 992 1145 1576 1678 2238 2320 4280 6770 10027 12486 15363 16714 17157 1161 3108 3727 4508 5092 5348 5582 7727 11793 12515 12917 13362 14247 16717 17205 542 1190 6883 7911 8349 8835 10489 11631 14195 15009 15454 15482 16632 17040 17063 17 487 776 880 5077 6172 9771 11446 12798 16016 16109 16171 17087 17132 17226 1337 3275 3462 4229 9246 10180 10845 10866 12250 13633 14482 16024 16812 17186 17241 15 980 2305 3674 5971 8224 11499 11752 11770 12897 14082 14836 15311 16391 17209 0 3926 5869 8696 9351 9391 11371 14052 14172 14636 14974 16619 16961 17033 17237 3033 5317 6501 8579 10698 12168 12966 14019 15392 15806 15991 16493 16690 17062 17090 981 1205 4400 6410 11003 13319 13405 14695 15846 16297 16492 16563 16616 16862 16953 1725 4276 8869 9588 14062 14486 15474 15548 16300 16432 17042 17050 17060 17175 17273 1807 5921 9960 10011 14305 14490 14872 15852 16054 16061 16306 16799 16833 17136 17262 2826 4752 6017 6540 7016 8201 14245 14419 14716 15983 16569 16652 17171 17179 17247 1662 2516 3345 5229 8086 9686 11456 12210 14595 15808 16011 16421 16825 17112 17195 2890 4821 5987 7226 8823 9869 12468 14694 15352 15805 16075 16462 17102 17251 17263 3751 3890 4382 5720 10281 10411 11350 12721 13121 14127 14980 15202 15335 16735 17123 26 30 2805 5457 6630 7188 7477 7556 11065 16608 16859 16909 16943 17030 17103 40 4524 5043 5566 9645 10204 10282 11696 13080 14837 15607 16274 17034 17225 17266 904 3157 6284 7151 7984 11712 12887 13767 15547 16099 16753 16829 17044 17250 17259 7 311 4876 8334 9249 11267 14072 14559 15003 15235 15686 16331 17177 17238 17253 4410 8066 8596 9631 10369 11249 12610 15769 16791 16960 17018 17037 17062 17165 17204 24 8261 9691 10138 11607 12782 12786 13424 13933 15262 15795 16476 17084 17193 17220 88 11622 14705 15890 304 2026 2638 6018 1163 4268 11620 17232 9701 11785 14463 17260 4118 10952 12224 17006 3647 10823 11521 12060 1717 3753 9199 11642 2187 14280 17220 14787 16903 17061 381 3534 4294 3149 6947 8323 12562 16724 16881 7289 9997 15306 5615 13152 17260 5666 16926 17027 4190 7798 16831 4778 10629 17180 10001 13884 15453 6 2237 8203 7831 15144 15160 9186 17204 17243 9435 17168 17237 42 5701 17159 7812 14259 15715 39 4513 6658 38 9368 11273 1119 4785 17182 5620 16521 16729 16 6685 17242 210 3452 12383 466 14462 16250 10548 12633 13962 1452 6005 16453 22 4120 13684 5195 11563 16522 5518 16705 17201 12233 14552 15471 6067 13440 17248 8660 8967 17061 8673 12176 15051 5959 15767 16541 3244 12109 12414 31 15913 16323 3270 15686 16653 24 7346 14675 12 1531 8740 6228 7565 16667 16936 17122 17162 4868 8451 13183 3714 4451 16919 11313 13801 17132 17070 17191 17242 1911 11201 17186 14 17190 17254 11760 16008 16832 14543 17033 17278 16129 16765 17155 6891 15561 17007 12741 14744 17116 8992 16661 17277 1861 11130 16742 4822 13331 16192 13281 14027 14989 38 14887 17141 10698 13452 15674 4 2539 16877 857 17170 17249 11449 11906 12867 285 14118 16831 15191 17214 17242 39 728 16915 2469 12969 15579 16644 17151 17164 2592 8280 10448 9236 12431 17173 9064 16892 17233 4526 16146 17038 31 2116 16083 15837 16951 17031 5362 8382 16618 6137 13199 17221 2841 15068 17068 24 3620 17003 9880 15718 16764 1784 10240 17209 2731 10293 10846 3121 8723 16598 8563 15662 17088 13 1167 14676 29 13850 15963 3654 7553 8114 23 4362 14865 4434 14741 16688 8362 13901 17244 13687 16736 17232 46 4229 13394 13169 16383 16972 16031 16681 16952 3384 9894 12580 9841 14414 16165 5013 17099 17115 2130 8941 17266 6907 15428 17241 16 1860 17235 2151 16014 16643 14954 15958 17222 3969 8419 15116 31 15593 16984 11514 16605 17255.
53 . A data processing apparatus comprising:
a decoding unit configured to decode an LDPC (Low Density Parity Check) code having a code length of 64800 bits and a code rate of 22/30 on the basis of a parity check matrix of the LDPC code, wherein the LDPC code includes information bits and parity bits, the parity check matrix includes an information matrix portion corresponding to the information bits and a parity matrix portion corresponding to the parity bits, the information matrix portion is represented by a parity check matrix initial value table, and the parity check matrix initial value table is a table showing positions of elements of 1 in the information matrix portion in units of 360 columns, including 696 989 1238 3091 3116 3738 4269 6406 7033 8048 9157 10254 12033 16456 16912 444 1488 6541 8626 10735 12447 13111 13706 14135 15195 15947 16453 16916 17137 17268 401 460 992 1145 1576 1678 2238 2320 4280 6770 10027 12486 15363 16714 17157 1161 3108 3727 4508 5092 5348 5582 7727 11793 12515 12917 13362 14247 16717 17205 542 1190 6883 7911 8349 8835 10489 11631 14195 15009 15454 15482 16632 17040 17063 17 487 776 880 5077 6172 9771 11446 12798 16016 16109 16171 17087 17132 17226 1337 3275 3462 4229 9246 10180 10845 10866 12250 13633 14482 16024 16812 17186 17241 15 980 2305 3674 5971 8224 11499 11752 11770 12897 14082 14836 15311 16391 17209 0 3926 5869 8696 9351 9391 11371 14052 14172 14636 14974 16619 16961 17033 17237 3033 5317 6501 8579 10698 12168 12966 14019 15392 15806 15991 16493 16690 17062 17090 981 1205 4400 6410 11003 13319 13405 14695 15846 16297 16492 16563 16616 16862 16953 1725 4276 8869 9588 14062 14486 15474 15548 16300 16432 17042 17050 17060 17175 17273 1807 5921 9960 10011 14305 14490 14872 15852 16054 16061 16306 16799 16833 17136 17262 2826 4752 6017 6540 7016 8201 14245 14419 14716 15983 16569 16652 17171 17179 17247 1662 2516 3345 5229 8086 9686 11456 12210 14595 15808 16011 16421 16825 17112 17195 2890 4821 5987 7226 8823 9869 12468 14694 15352 15805 16075 16462 17102 17251 17263 3751 3890 4382 5720 10281 10411 11350 12721 13121 14127 14980 15202 15335 16735 17123 26 30 2805 5457 6630 7188 7477 7556 11065 16608 16859 16909 16943 17030 17103 40 4524 5043 5566 9645 10204 10282 11696 13080 14837 15607 16274 17034 17225 17266 904 3157 6284 7151 7984 11712 12887 13767 15547 16099 16753 16829 17044 17250 17259 7 311 4876 8334 9249 11267 14072 14559 15003 15235 15686 16331 17177 17238 17253 4410 8066 8596 9631 10369 11249 12610 15769 16791 16960 17018 17037 17062 17165 17204 24 8261 9691 10138 11607 12782 12786 13424 13933 15262 15795 16476 17084 17193 17220 88 11622 14705 15890 304 2026 2638 6018 1163 4268 11620 17232 9701 11785 14463 17260 4118 10952 12224 17006 3647 10823 11521 12060 1717 3753 9199 11642 2187 14280 17220 14787 16903 17061 381 3534 4294 3149 6947 8323 12562 16724 16881 7289 9997 15306 5615 13152 17260 5666 16926 17027 4190 7798 16831 4778 10629 17180 10001 13884 15453 6 2237 8203 7831 15144 15160 9186 17204 17243 9435 17168 17237 42 5701 17159 7812 14259 15715 39 4513 6658 38 9368 11273 1119 4785 17182 5620 16521 16729 16 6685 17242 210 3452 12383 466 14462 16250 10548 12633 13962 1452 6005 16453 22 4120 13684 5195 11563 16522 5518 16705 17201 12233 14552 15471 6067 13440 17248 8660 8967 17061 8673 12176 15051 5959 15767 16541 3244 12109 12414 31 15913 16323 3270 15686 16653 24 7346 14675 12 1531 8740 6228 7565 16667 16936 17122 17162 4868 8451 13183 3714 4451 16919 11313 13801 17132 17070 17191 17242 1911 11201 17186 14 17190 17254 11760 16008 16832 14543 17033 17278 16129 16765 17155 6891 15561 17007 12741 14744 17116 8992 16661 17277 1861 11130 16742 4822 13331 16192 13281 14027 14989 38 14887 17141 10698 13452 15674 4 2539 16877 857 17170 17249 11449 11906 12867 285 14118 16831 15191 17214 17242 39 728 16915 2469 12969 15579 16644 17151 17164 2592 8280 10448 9236 12431 17173 9064 16892 17233 4526 16146 17038 31 2116 16083 15837 16951 17031 5362 8382 16618 6137 13199 17221 2841 15068 17068 24 3620 17003 9880 15718 16764 1784 10240 17209 2731 10293 10846 3121 8723 16598 8563 15662 17088 13 1167 14676 29 13850 15963 3654 7553 8114 23 4362 14865 4434 14741 16688 8362 13901 17244 13687 16736 17232 46 4229 13394 13169 16383 16972 16031 16681 16952 3384 9894 12580 9841 14414 16165 5013 17099 17115 2130 8941 17266 6907 15428 17241 16 1860 17235 2151 16014 16643 14954 15958 17222 3969 8419 15116 31 15593 16984 11514 16605 17255.
54 . A data processing method comprising:
a decoding step of decoding an LDPC (Low Density Parity Check) code having a code length of 64800 bits and a code rate of 22/30 on the basis of a parity check matrix of the LDPC code, wherein the LDPC code includes information bits and parity bits, the parity check matrix includes an information matrix portion corresponding to the information bits and a parity matrix portion corresponding to the parity bits, the information matrix portion is represented by a parity check matrix initial value table, and the parity check matrix initial value table is a table showing positions of elements of 1 in the information matrix portion in units of 360 columns, including 696 989 1238 3091 3116 3738 4269 6406 7033 8048 9157 10254 12033 16456 16912 444 1488 6541 8626 10735 12447 13111 13706 14135 15195 15947 16453 16916 17137 17268 401 460 992 1145 1576 1678 2238 2320 4280 6770 10027 12486 15363 16714 17157 1161 3108 3727 4508 5092 5348 5582 7727 11793 12515 12917 13362 14247 16717 17205 542 1190 6883 7911 8349 8835 10489 11631 14195 15009 15454 15482 16632 17040 17063 17 487 776 880 5077 6172 9771 11446 12798 16016 16109 16171 17087 17132 17226 1337 3275 3462 4229 9246 10180 10845 10866 12250 13633 14482 16024 16812 17186 17241 15 980 2305 3674 5971 8224 11499 11752 11770 12897 14082 14836 15311 16391 17209 0 3926 5869 8696 9351 9391 11371 14052 14172 14636 14974 16619 16961 17033 17237 3033 5317 6501 8579 10698 12168 12966 14019 15392 15806 15991 16493 16690 17062 17090 981 1205 4400 6410 11003 13319 13405 14695 15846 16297 16492 16563 16616 16862 16953 1725 4276 8869 9588 14062 14486 15474 15548 16300 16432 17042 17050 17060 17175 17273 1807 5921 9960 10011 14305 14490 14872 15852 16054 16061 16306 16799 16833 17136 17262 2826 4752 6017 6540 7016 8201 14245 14419 14716 15983 16569 16652 17171 17179 17247 1662 2516 3345 5229 8086 9686 11456 12210 14595 15808 16011 16421 16825 17112 17195 2890 4821 5987 7226 8823 9869 12468 14694 15352 15805 16075 16462 17102 17251 17263 3751 3890 4382 5720 10281 10411 11350 12721 13121 14127 14980 15202 15335 16735 17123 26 30 2805 5457 6630 7188 7477 7556 11065 16608 16859 16909 16943 17030 17103 40 4524 5043 5566 9645 10204 10282 11696 13080 14837 15607 16274 17034 17225 17266 904 3157 6284 7151 7984 11712 12887 13767 15547 16099 16753 16829 17044 17250 17259 7 311 4876 8334 9249 11267 14072 14559 15003 15235 15686 16331 17177 17238 17253 4410 8066 8596 9631 10369 11249 12610 15769 16791 16960 17018 17037 17062 17165 17204 24 8261 9691 10138 11607 12782 12786 13424 13933 15262 15795 16476 17084 17193 17220 88 11622 14705 15890 304 2026 2638 6018 1163 4268 11620 17232 9701 11785 14463 17260 4118 10952 12224 17006 3647 10823 11521 12060 1717 3753 9199 11642 2187 14280 17220 14787 16903 17061 381 3534 4294 3149 6947 8323 12562 16724 16881 7289 9997 15306 5615 13152 17260 5666 16926 17027 4190 7798 16831 4778 10629 17180 10001 13884 15453 6 2237 8203 7831 15144 15160 9186 17204 17243 9435 17168 17237 42 5701 17159 7812 14259 15715 39 4513 6658 38 9368 11273 1119 4785 17182 5620 16521 16729 16 6685 17242 210 3452 12383 466 14462 16250 10548 12633 13962 1452 6005 16453 22 4120 13684 5195 11563 16522 5518 16705 17201 12233 14552 15471 6067 13440 17248 8660 8967 17061 8673 12176 15051 5959 15767 16541 3244 12109 12414 31 15913 16323 3270 15686 16653 24 7346 14675 12 1531 8740 6228 7565 16667 16936 17122 17162 4868 8451 13183 3714 4451 16919 11313 13801 17132 17070 17191 17242 1911 11201 17186 14 17190 17254 11760 16008 16832 14543 17033 17278 16129 16765 17155 6891 15561 17007 12741 14744 17116 8992 16661 17277 1861 11130 16742 4822 13331 16192 13281 14027 14989 38 14887 17141 10698 13452 15674 4 2539 16877 857 17170 17249 11449 11906 12867 285 14118 16831 15191 17214 17242 39 728 16915 2469 12969 15579 16644 17151 17164 2592 8280 10448 9236 12431 17173 9064 16892 17233 4526 16146 17038 31 2116 16083 15837 16951 17031 5362 8382 16618 6137 13199 17221 2841 15068 17068 24 3620 17003 9880 15718 16764 1784 10240 17209 2731 10293 10846 3121 8723 16598 8563 15662 17088 13 1167 14676 29 13850 15963 3654 7553 8114 23 4362 14865 4434 14741 16688 8362 13901 17244 13687 16736 17232 46 4229 13394 13169 16383 16972 16031 16681 16952 3384 9894 12580 9841 14414 16165 5013 17099 17115 2130 8941 17266 6907 15428 17241 16 1860 17235 2151 16014 16643 14954 15958 17222 3969 8419 15116 31 15593 16984 11514 16605 17255.
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