Data processing device and data processing method

Abstract

The present technology relates to a data processing device and a data processing method which can ensure high communication quality in data transmission using LDPC codes. In group-wise interleaving, an LDPC code having a code length N of 64800 bits and a coding rate r of 11/15 is interleaved in a unit of a bit group of 360 bits. In group-wise deinterleaving, a sequence of bit groups of the LDPC code which has been subjected to the group-wise interleaving is returned to an original sequence. The present technology can be applied to, for example, a case in which data transmission is performed using LDPC codes.

1 . (canceled) 
     
     
         2 . A data processing method comprising:
 a coding step of performing LDPC coding on the basis of a parity check matrix of an LDPC code having a code length N of 64800 bits and a coding rate r of 11/15;   a group-wise interleaving step of performing group-wise interleaving which interleaves the LDPC code in a unit of a bit group of 360 bits; and   a mapping step of mapping the LDPC code to any one of four signal points which are determined by a modulation method in a unit of 2 bits,   wherein, in the group-wise interleaving, an (i+1)-th bit group from a head of the LDPC code is set as a bit group i and a sequence of bit groups 0 to 179 of the 64800-bit LDPC code is interleaved into a sequence of the following bit groups,   0, 14, 19, 21, 2, 11, 22, 9, 8, 7, 16, 3, 26, 24, 27, 80, 100, 121, 107, 31, 36, 42, 46, 49, 75, 93, 127, 95, 119, 73, 61, 63, 117, 89, 99, 129, 52, 111, 124, 48, 122, 82, 106, 91, 92, 71, 103, 102, 81, 113, 101, 97, 33, 115, 59, 112, 90, 51, 126, 85, 123, 40, 83, 53, 69, 70, 132, 134, 136, 138, 140, 142, 144, 146, 148, 150, 152, 154, 156, 158, 160, 162, 164, 166, 168, 170, 172, 174, 176, 178, 4, 5, 10, 12, 20, 6, 18, 13, 17, 15, 1, 29, 28, 23, 25, 67, 116, 66, 104, 44, 50, 47, 84, 76, 65, 130, 56, 128, 77, 39, 94, 87, 120, 62, 88, 74, 35, 110, 131, 98, 60, 37, 45, 78, 125, 41, 34, 118, 38, 72, 108, 58, 43, 109, 57, 105, 68, 86, 79, 96, 32, 114, 64, 55, 30, 54, 133, 135, 137, 139, 141, 143, 145, 147, 149, 151, 153, 155, 157, 159, 161, 163, 165, 167, 169, 171, 173, 175, 177, 179   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 indicates positions of elements “1” in the information matrix portion for every 360 columns and includes the following,   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.   
     
     
         3 . A data processing device comprising:
 a group-wise deinterleaving unit that returns a sequence of an LDPC code, which has been subjected to group-wise interleaving and is obtained from data transmitted from a transmitting device, to an original sequence,   wherein the transmitting device includes:   a coding unit that performs LDPC coding on the basis of a parity check matrix of the LDPC code having a code length N of 64800 bits and a coding rate r of 11/15;   a group-wise interleaving unit that performs the group-wise interleaving which interleaves the LDPC code in a unit of a bit group of 360 bits; and   a mapping unit that maps the LDPC code to any one of four signal points which are determined by a modulation method in a unit of 2 bits,   in the group-wise interleaving, an (i+1)-th bit group from a head of the LDPC code is set as a bit group i and a sequence of bit groups 0 to 179 of the 64800-bit LDPC code is interleaved into a sequence of the following bit groups,   0, 14, 19, 21, 2, 11, 22, 9, 8, 7, 16, 3, 26, 24, 27, 80, 100, 121, 107, 31, 36, 42, 46, 49, 75, 93, 127, 95, 119, 73, 61, 63, 117, 89, 99, 129, 52, 111, 124, 48, 122, 82, 106, 91, 92, 71, 103, 102, 81, 113, 101, 97, 33, 115, 59, 112, 90, 51, 126, 85, 123, 40, 83, 53, 69, 70, 132, 134, 136, 138, 140, 142, 144, 146, 148, 150, 152, 154, 156, 158, 160, 162, 164, 166, 168, 170, 172, 174, 176, 178, 4, 5, 10, 12, 20, 6, 18, 13, 17, 15, 1, 29, 28, 23, 25, 67, 116, 66, 104, 44, 50, 47, 84, 76, 65, 130, 56, 128, 77, 39, 94, 87, 120, 62, 88, 74, 35, 110, 131, 98, 60, 37, 45, 78, 125, 41, 34, 118, 38, 72, 108, 58, 43, 109, 57, 105, 68, 86, 79, 96, 32, 114, 64, 55, 30, 54, 133, 135, 137, 139, 141, 143, 145, 147, 149, 151, 153, 155, 157, 159, 161, 163, 165, 167, 169, 171, 173, 175, 177, 179   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 indicates positions of elements “1” in the information matrix portion for every 360 columns and includes the following,   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.   
     
     
         4 . A data processing method comprising:
 a group-wise deinterleaving step of returning a sequence of an LDPC code, which has been subjected to group-wise interleaving and is obtained from data transmitted from a transmitting device, to an original sequence,   wherein the transmitting device includes:   a coding unit that performs LDPC coding on the basis of a parity check matrix of the LDPC code having a code length N of 64800 bits and a coding rate r of 11/15;   a group-wise interleaving unit that performs the group-wise interleaving which interleaves the LDPC code in a unit of a bit group of 360 bits; and   a mapping unit that maps the LDPC code to any one of four signal points which are determined by a modulation method in a unit of 2 bits,   in the group-wise interleaving, an (i+1)-th bit group from a head of the LDPC code is set as a bit group i and a sequence of bit groups 0 to 179 of the 64800-bit LDPC code is interleaved into a sequence of the following bit groups,   0, 14, 19, 21, 2, 11, 22, 9, 8, 7, 16, 3, 26, 24, 27, 80, 100, 121, 107, 31, 36, 42, 46, 49, 75, 93, 127, 95, 119, 73, 61, 63, 117, 89, 99, 129, 52, 111, 124, 48, 122, 82, 106, 91, 92, 71, 103, 102, 81, 113, 101, 97, 33, 115, 59, 112, 90, 51, 126, 85, 123, 40, 83, 53, 69, 70, 132, 134, 136, 138, 140, 142, 144, 146, 148, 150, 152, 154, 156, 158, 160, 162, 164, 166, 168, 170, 172, 174, 176, 178, 4, 5, 10, 12, 20, 6, 18, 13, 17, 15, 1, 29, 28, 23, 25, 67, 116, 66, 104, 44, 50, 47, 84, 76, 65, 130, 56, 128, 77, 39, 94, 87, 120, 62, 88, 74, 35, 110, 131, 98, 60, 37, 45, 78, 125, 41, 34, 118, 38, 72, 108, 58, 43, 109, 57, 105, 68, 86, 79, 96, 32, 114, 64, 55, 30, 54, 133, 135, 137, 139, 141, 143, 145, 147, 149, 151, 153, 155, 157, 159, 161, 163, 165, 167, 169, 171, 173, 175, 177, 179   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 indicates positions of elements “1” in the information matrix portion for every 360 columns and includes the following,   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.   
     
     
         5 - 12 . (canceled)