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Registered BIT INTERLEAVER FOR LOW-DENSITY PARITY CHECK CODEWORD HAVING LENGTH OF 64800 AND CODE RATE OF 4/15 AND 256-SYMBOL MAPPING, AND BIT INTERLEAVING METHOD USING SAME
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BIT INTERLEAVER FOR LOW-DENSITY PARITY CHECK CODEWORD HAVING LENGTH OF 64800 AND CODE RATE OF 4/15 AND 256-SYMBOL MAPPING, AND BIT INTERLEAVING METHOD USING SAME
- Inventors
- Sung Ik Park, Kwon Sun Hyoung, Lee Jae-Young, Heung Mook Kim, Namho Hur
- Application No.
- 14636053 (2015.03.02)
- Publication No.
- 20150256202 (2015.09.10)
- Registration No.
- 9602136 (2017.03.21)
- Country
- UNITED STATES
- Project Code
- 13PR3900, Developement of Terrestrial Broadcasting Technology for Next Generation DTV, Heung Mook Kim
- Abstract
- A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 64800 and a code rate of 4/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for 256-symbol mapping.
- Family