Low density parity check encoder having length of 64800 and code rate of 7/15, and low density parity check encoding method using the same
AssigneeElectronics and Telecommunications Research Institute
InventorsSung-Ik Park, Heung-Mook Kim, Sun-Hyoung Kwon, Nam-Ho Hur
Life of this patent
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Abstract
A low density parity check (LDPC) encoder, an LDPC decoder, and an LDPC encoding method are disclosed. The LDPC encoder includes first memory, second memory, and a processor. The first memory stores an LDPC codeword having a length of 64800 and a code rate of 7/15. The second memory is initialized to 0. The processor generates the LDPC codeword corresponding to information bits by performing accumulation with respect to the second memory using a sequence corresponding to a parity check matrix (PCM).
Claims6
A method of transmitting a broadcast signal, comprising:
- generating an LDPC codeword having a length of 64800 and a code rate of 7/15 by performing accumulation with respect to memory using a sequence corresponding to a parity check matrix (PCM), the LDPC codeword corresponding to information bits;
- generating a modulated signal corresponding to the LDPC codeword;
- and
- transmitting a broadcast signal corresponding to the modulated signal,
- wherein the sequence is represented by the following Sequence Table:
- Sequence Table
- 1st row:
- 460 792 1007 4580 11452 13130 26882 27020 32439
- 2nd row:
- 35 472 1056 7154 12700 13326 13414 16828 19102
- 3rd row:
- 45 440 772 4854 7863 26945 27684 28651 31875
- 4th row:
- 744 812 892 1509 9018 12925 14140 21357 25106
- 5th row:
- 271 474 761 4268 6706 9609 19701 19707 24870
- 6th row:
- 223 477 662 1987 9247 18376 22148 24948 27694
- 7th row:
- 44 379 786 8823 12322 14666 16377 28688 29924
- 8th row:
- 104 219 562 5832 19665 20615 21043 22759 32180
- 9th row:
- 41 43 870 7963 13718 14136 17216 30470 33428
- 10th row:
- 592 744 887 4513 6192 18116 19482 25032 34095
- 11th row:
- 456 821 1078 7162 7443 8774 15567 17243 33085
- 12th row:
- 151 666 977 6946 10358 11172 18129 19777 32234
- 13th row:
- 236 793 870 2001 6805 9047 13877 30131 34252
- 14th row:
- 297 698 772 3449 4204 11608 22950 26071 27512
- 15th row:
- 202 428 474 3205 3726 6223 7708 20214 25283
- 16th row:
- 139 719 915 1447 2938 11864 15932 21748 28598
- 17th row:
- 135 853 902 3239 18590 20579 30578 33374 34045
- 18th row:
- 9 13 971 11834 13642 17628 21669 24741 30965
- 19th row:
- 344 531 730 1880 16895 17587 21901 28620 31957
- 20th row:
- 7 192 380 3168 3729 5518 6827 20372 34168
- 21st row:
- 28 521 681 4313 7465 14209 21501 23364 25980
- 22nd row:
- 269 393 898 3561 11066 11985 17311 26127 30309
- 23rd row:
- 42 82 707 4880 4890 9818 23340 25959 31695
- 24th row:
- 189 262 707 6573 14082 22259 24230 24390 24664
- 25th row:
- 383 568 573 5498 13449 13990 16904 22629 34203
- 26th row:
- 585 596 820 2440 2488 21956 28261 28703 29591
- 27th row:
- 755 763 795 5636 16433 21714 23452 31150 34545
- 28th row:
- 23 343 669 1159 3507 13096 17978 24241 34321
- 29th row:
- 316 384 944 4872 8491 18913 21085 23198 24798
- 30th row:
- 64 314 765 3706 7136 8634 14227 17127 23437
- 31st row:
- 220 693 899 8791 12417 13487 18335 22126 27428
- 32nd row:
- 285 794 1045 8624 8801 9547 19167 21894 32657
- 33rd row:
- 386 621 1045 1634 1882 3172 13686 16027 22448
- 34th row:
- 95 622 693 2827 7098 11452 14112 18831 31308
- 35th row:
- 446 813 928 7976 8935 13146 27117 27766 33111
- 36th row:
- 89 138 241 3218 9283 20458 31484 31538 34216
- 37th row:
- 277 420 704 9281 12576 12788 14496 15357 20585
- 38th row:
- 141 643 758 4894 10264 15144 16357 22478 26461
- 39th row:
- 17 108 160 13183 15424 17939 19276 23714 26655
- 40th row:
- 109 285 608 1682 20223 21791 24615 29622 31983
- 41st row:
- 123 515 622 7037 13946 15292 15606 16262 23742
- 42nd row:
- 264 565 923 6460 13622 13934 23181 25475 26134
- 43rd row:
- 202 548 789 8003 10993 12478 16051 25114 27579
- 44th row:
- 121 450 575 5972 10062 18693 21852 23874 28031
- 45th row:
- 507 560 889 12064 13316 19629 21547 25461 28732
- 46th row:
- 664 786 1043 9137 9294 10163 23389 31436 34297
- 47th row:
- 45 830 907 10730 16541 21232 30354 30605 31847
- 48th row:
- 203 507 1060 6971 12216 13321 17861 22671 29825
- 49th row:
- 369 881 952 3035 12279 12775 17682 17805 34281
- 50th row:
- 683 709 1032 3787 17623 24138 26775 31432 33626
- 51st row:
- 524 792 1042 12249 14765 18601 25811 32422 33163
- 52nd row:
- 137 639 688 7182 8169 10443 22530 24597 29039
- 53rd row:
- 159 643 749 16386 17401 24135 28429 33468 33469
- 54th row:
- 107 481 555 7322 13234 19344 23498 26581 31378
- 55th row:
- 249 389 523 3421 10150 17616 19085 20545 32069
- 56th row:
- 395 738 1045 2415 3005 3820 19541 23543 31068
- 57th row:
- 27 293 703 1717 3460 8326 8501 10290 32625
- 58th row:
- 126 247 515 6031 9549 10643 22067 29490 34450
- 59th row:
- 331 471 1007 3020 3922 7580 23358 28620 30946
- 60th row:
- 222 542 1021 3291 3652 13130 16349 33009 34348
- 61st row:
- 532 719 1038 5891 7528 23252 25472 31395 31774
- 62nd row:
- 145 398 774 7816 13887 14936 23708 31712 33160
- 63rd row:
- 88 536 600 1239 1887 12195 13782 16726 27998
- 64th row:
- 151 269 585 1445 3178 3970 15568 20358 21051
- 65th row:
- 650 819 865 15567 18546 25571 32038 33350 33620
- 66th row:
- 93 469 800 6059 10405 12296 17515 21354 22231
- 67th row:
- 97 206 951 6161 16376 27022 29192 30190 30665
- 68th row:
- 412 549 986 5833 10583 10766 24946 28878 31937
- 69th row:
- 72 604 659 5267 12227 21714 32120 33472 33974
- 70th row:
- 25 902 912 1137 2975 9642 11598 25919 28278
- 71st row:
- 420 976 1055 8473 11512 20198 21662 25443 30119
- 72nd row:
- 1 24 932 6426 11899 13217 13935 16548 29737
- 73rd row:
- 53 618 988 6280 7267 11676 13575 15532 25787
- 74th row:
- 111 739 809 8133 12717 12741 20253 20608 27850
- 75th row:
- 120 683 943 14496 15162 15440 18660 27543 32404
- 76th row:
- 600 754 1055 7873 9679 17351 27268 33508
- 77th row:
- 344 756 1054 7102 7193 22903 24720 27883
- 78th row:
- 582 1003 1046 11344 23756 27497 27977 32853
- 79th row:
- 28 429 509 11106 11767 12729 13100 31792
- 80th row:
- 131 555 907 5113 10259 10300 20580 23029
- 81st row:
- 406 915 977 12244 20259 26616 27899 32228
- 82nd row:
- 46 195 224 1229 4116 10263 13608 17830
- 83rd row:
- 19 819 953 7965 9998 13959 30580 30754
- 84th row:
- 164 1003 1032 12920 15975 16582 22624 27357
- 85th row:
- 8433 11894 13531 17675 25889 31384
- 86th row:
- 3166 3813 8596 10368 25104 29584
- 87th row:
- 2466 8241 12424 13376 24837 32711.
Dependencies are inferred from the claim text.