Back to results
US 11,387,846 B2Granted
Low density parity check encoder having length of 16200 and code rate of 3/15, 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
Estimating the term…
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 16200 and a code rate of 3/15. 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 low density parity check (LDPC) decoder, comprising:
- a receiving unit configured to receive a signal corresponding to an LDPC codeword having a length of 16200 and a code rate of 3/15, the LDPC codeword encoded using a sequence corresponding to a parity check matrix (PCM);
- and
- a decoding unit configured to perform decoding corresponding to the received signal,
- wherein the LDPC codeword includes a systematic part corresponding to information bits, a first parity part and a second parity part, and the LDPC codeword is stored in first memory (λi, i=0, 1, . . . , 16200-1) of a transmitter,
- wherein the LDPC codeword is generated by performing accumulation with respect to second memory (pj, j=0, 1, . . . M1=M2−1) using the sequence,
- where M1 is the size of the first parity part, and M2 is the size of the second parity part, and
- wherein the sequence is represented by the following Sequence Table:
- Sequence Table
- 1st row:
- 8 372 841 4522 5253 7430 8542 9822 10550 11896 11988
- 2nd row:
- 80 255 667 1511 3549 5239 5422 5497 7157 7854 11267
- 3rd row:
- 257 406 792 2916 3072 3214 3638 4090 8175 8892 9003
- 4th row:
- 80 150 346 1883 6838 7818 9482 10366 10514 11468 12341
- 5th row:
- 32 100 978 3493 6751 7787 8496 10170 10318 10451 12561
- 6th row:
- 504 803 856 2048 6775 7631 8110 8221 8371 9443 10990
- 7th row:
- 152 283 696 1164 4514 4649 7260 7370 11925 11986 12092
- 8th row:
- 127 1034 1044 1842 3184 3397 5931 7577 11898 12339 12689
- 9th row:
- 107 513 979 3934 4374 4658 7286 7809 8830 10804 10893
- 10th row:
- 2045 2499 7197 8887 9420 9922 10132 10540 10816 11876
- 11st row:
- 2932 6241 7136 7835 8541 9403 9817 11679 12377 12810
- 12nd row:
- 2211 2288 3937 4310 5952 6597 9692 10445 11064 11272
29 more elements
A low density parity check (LDPC) decoding method, comprising:
- receiving a signal corresponding to an LDPC codeword having a length of 16200 and a code rate of 3/15, the LDPC codeword encoded using a sequence corresponding to a parity check matrix (PCM);
- and
- performing decoding corresponding to the received signal,
- wherein the LDPC codeword includes a systematic part corresponding to information bits, a first parity part and a second parity part, and the LDPC codeword is stored in first memory (λi, i=0, 1, . . . , 16200-1) of a transmitter,
- wherein the LDPC codeword is generated by performing accumulation with respect to second memory (pj, j=0, 1, . . . M1+M2−1) using the sequence,
- where M1 is the size of the first parity part, and M2 is the size of the second parity part, and
- wherein the sequence is represented by the following Sequence Table:
- Sequence Table
- 1st row:
- 8 372 841 4522 5253 7430 8542 9822 10550 11896 11988
- 2nd row:
- 80 255 667 1511 3549 5239 5422 5497 7157 7854 11267
- 3rd row:
- 257 406 792 2916 3072 3214 3638 4090 8175 8892 9003
- 4th row:
- 80 150 346 1883 6838 7818 9482 10366 10514 11468 12341
- 5th row:
- 32 100 978 3493 6751 7787 8496 10170 10318 10451 12561
- 6th row:
- 504 803 856 2048 6775 7631 8110 8221 8371 9443 10990
- 7th row:
- 152 283 696 1164 4514 4649 7260 7370 11925 11986 12092
- 8th row:
- 127 1034 1044 1842 3184 3397 5931 7577 11898 12339 12689
- 9th row:
- 107 513 979 3934 4374 4658 7286 7809 8830 10804 10893
- 10th row:
- 2045 2499 7197 8887 9420 9922 10132 10540 10816 11876
- 11st row:
- 2932 6241 7136 7835 8541 9403 9817 11679 12377 12810
- 12nd row:
- 2211 2288 3937 4310 5952 6597 9692 10445 11064 11272
29 more elements
Dependencies are inferred from the claim text.