DATA PROCESSING DEVICE AND DATA PROCESSING METHOD
First Claim
Patent Images
1. A data processing device, comprising:
- a group-wise interleave unit of performing group-wise interleave of interleaving in a 360-bit group unit an LDPC code whose code length is 16200 bits and code rate is 10/15, 11/15, 12/15 or 13/15,the (i+1)th bit group from the beginning of the LDPC code of the 16200 bits being as a bit group i, and in the group-wise interleave, a sequence of bit group 0 to 44 of the 16200 bits of the LDPC code being interleaved into the following sequence of the bit group;
15, 25, 9, 27, 5, 38, 13, 10, 19, 16, 28, 1, 36, 0, 11, 17, 32, 35, 7, 26, 14, 21, 6, 4, 23, 22, 3, 18, 20, 24, 30, 12, 37, 2, 40, 8, 33, 29, 31, 34, 41, 42, 43, 44, 39.
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Abstract
The present technology relates to a data processing device and a data processing method that make it possible to ensure good communication quality in a data transmission using LDPC codes. In group-wise interleave, an LDPC code whose code length is 16200 bits and code rate is 10/15, 11/15, 12/15, or 13/15 is interleaved in a 360-bit group unit. In group-wise deinterleave, a sequence of the LDPC code after group-wise interleave obtained from data transmitted from a transmitting device to the original sequence. The present technology can be applied, for example, to data transmission or the like using the LDPC codes.
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Citations
14 Claims
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1. A data processing device, comprising:
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a group-wise interleave unit of performing group-wise interleave of interleaving in a 360-bit group unit an LDPC code whose code length is 16200 bits and code rate is 10/15, 11/15, 12/15 or 13/15, the (i+1)th bit group from the beginning of the LDPC code of the 16200 bits being as a bit group i, and in the group-wise interleave, a sequence of bit group 0 to 44 of the 16200 bits of the LDPC code being interleaved into the following sequence of the bit group; 15, 25, 9, 27, 5, 38, 13, 10, 19, 16, 28, 1, 36, 0, 11, 17, 32, 35, 7, 26, 14, 21, 6, 4, 23, 22, 3, 18, 20, 24, 30, 12, 37, 2, 40, 8, 33, 29, 31, 34, 41, 42, 43, 44, 39. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A data processing method, comprising:
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a step of group-wise interleaving, which group-wise interleaves an LDPC code whose code length is 16200 bits and code rate is 10/15, 11/15, 12/15 or 13/15 in a 360-bit group unit, the (i+1)th bit group from the beginning of the LDPC code of the 16200 bits being as a bit group i, and in the group-wise interleave, a sequence of bit group 0 to 44 of the 16200 bits of the LDPC code being interleaved into the following sequence of the bit group; 15, 29, 9, 27, 5, 38, 13, 10, 19, 16, 28, 1, 36, 0, 11, 17, 32, 35, 7, 26, 14, 21, 6, 4, 23, 22, 3, 18, 20, 24, 30, 12, 37, 2, 40, 8, 33, 29, 31, 34, 41, 42, 43, 44, 39.
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8. A data processing device, comprising:
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a group-wise interleave unit of performing group-wise interleave of interleaving in a 360-bit group unit an LDPC code whose code length is 16200 bits and code rate is 10/15, 11/15, 12/15 or 13/15, and of returning a sequence of the LDPC code after the group-wise interleave obtained from data transmitted from a transmitting device to the original sequence, the (i+1)th bit group from the beginning of the LDPC code of the 16200 bits being as a bit group i, and in the group-wise interleave, a sequence of bit group 0 to 44 of the 16200 bits of the LDPC code being interleaved into the following sequence of the bit group; 15, 25, 9, 27, 5, 38, 13, 10, 19, 16, 28, 1, 36, 0, 11, 17, 32, 35, 7, 26, 14, 21, 6, 4, 23, 22, 3, 18, 20, 24, 30, 12, 37, 2, 40, 8, 33, 29, 31, 34, 41, 42, 43, 44, 39. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A data processing method, comprising:
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a step of group-wise deinterleaving of returning a sequence of the LDPC code after group-wise interleave obtained from data transmitted from a transmitting device to the original sequence, the transmitting device comprising; a group-wise interleave unit of performing group-wise interleave of interleaving in a 360-bit group unit an LDPC code whose code length is 16200 bits and code rate is 10/15, 11/15, 12/15 or 13/15, the (i+1)th bit group from the beginning of the LDPC code of the 16200 bits being as a bit group i, and in the group-wise interleave, a sequence of bit group 0 to 44 of the 16200 bits of the LDPC code being interleaved into the following sequence of the bit group; 5, 25, 9, 27, 5, 38, 13, 10, 19, 16, 28, 1, 36, 0, 11, 17, 32, 35, 7, 26, 14, 21, 6, 4, 23, 22, 3, 18, 20, 24, 30, 12, 37, 2, 40, 8, 33, 29, 31, 34, 41, 42, 43, 44, 39.
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Specification