Parity interleaving apparatus for encoding variable-length signaling information and parity interleaving 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 interleaving apparatus and method for variable length signaling information are disclosed. A parity interleaving apparatus according to an embodiment of the present invention includes a processor configured to generate a parity bit string for parity puncturing by segmenting parity bits of an LDPC codeword whose length is 16200 and whose code rate is 3/15, into a plurality of groups, and group-wise interleaving the groups using an order of group-wise interleaving; and memory configured to provide the parity bit string for parity puncturing to a parity puncturing unit.
Claims4
An inverse parity interleaving apparatus, comprising:
- memory configured to store restored parity values;
- and
- a processor configured to generate deinterleaved parity values corresponding to parity bits of an LDPC codeword whose length is 16200 and whose code rate is 3/15 by grouping the restored parity values into 36 groups, and group-wise de-interleaving the 36 groups, the group-wise de-interleaving corresponding to an inverse operation of group-wise interleaving according to an order of the group-wise interleaving,
- wherein the order of the group-wise interleaving corresponds to a sequence of 36 numbers which indicate the order of the 36 groups, and
- wherein the order of the group-wise interleaving corresponds to a sequence [16 22 27 30 37 44 20 23 25 32 38 41 9 10 17 18 21 33 35 14 28 12 15 19 11 24 29 34 36 13 40 43 31 26 39 42].
An inverse parity interleaving method, comprising:
- storing restored parity values;
- and
- generating deinterleaved parity values corresponding to parity bits of an LDPC codeword whose length is 16200 and whose code rate is 3/15 by grouping the restored parity values into 36 groups, and group-wise de-interleaving the 36 groups, the group-wise de-interleaving corresponding to an inverse operation of group-wise interleaving according to an order of the group-wise interleaving,
- wherein the order of the group-wise interleaving corresponds to a sequence of 36 numbers which indicate the order of the 36 groups, and
- wherein the order of the group-wise interleaving corresponds to a sequence [16 22 27 30 37 44 20 23 25 32 38 41 9 10 17 18 21 33 35 14 28 12 15 19 11 24 29 34 36 13 40 43 31 26 39 42].
Dependencies are inferred from the claim text.