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US 2020/0052723 A1Published application
Parity puncturing device for variable-length signaling information encoding, and parity puncturing method using same
AssigneeElectronics and Telecommunications Research Institute
InventorsSung-Ik PARK, Sun-Hyoung KWON, Jae-Young LEE, Heung-Mook KIM
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Abstract
A parity puncturing apparatus and method for variable length signaling information are disclosed. A parity puncturing apparatus according to an embodiment of the present invention includes memory configured to provide a parity bit string for parity puncturing for the parity bits of an LDPC codeword whose length is 16200 and whose code rate is 3/15, and a processor configured to puncture a number of bits corresponding to a final puncturing size from the rear side of the parity bit string.
Claims7
A parity puncturing method, comprising:
- calculating a temporary puncturing size using a difference between a length of an LDPC information bit string and a length of a BCH-encoded bit string;
- calculating a temporary number of transmission bits using a difference between a sum of the length of the BCH-encoded bit string and 12960, and the temporary puncturing size;
- calculating a number of transmission bits using the temporary number of transmission bits and a modulation order;
- calculating a final puncturing size using the temporary number of transmission bits, the number of transmission bits, and the temporary number of transmission bits;
- and
- puncturing a number of bits corresponding to the final puncturing size on a rear side of a parity bit string for parity puncturing for parity bits of an LDPC codeword whose length is 16200 and whose code rate is 3/15.
3 more elements
Dependencies are inferred from the claim text.