Title:
送信装置、送信方法、受信装置、及び、受信方法
Document Type and Number:
Japanese Patent JP6911540
Kind Code:
B2
Abstract:
The present technology relates to a transmission device, a transmission method, a reception device, and a reception method for securing good communication quality in data transmission using an LDPC code.LDPC coding for information bits with an information length K = N × r is performed on the basis of an extended parity check matrix having rows and columns extended by a predetermined puncture length L with respect to a parity check matrix of an LDPC code with a code length N of 69120 bits and a coding rate r of 14/16, so that an extended LDPC code having parity bits with a parity length M = N + L - K is generated. A head of the information bits of the extended LDPC code is punctured by L, so that a punctured LDPC code with the code length N of 69120 bits and the coding rate r is generated. The extended parity check matrix includes an A matrix of M1 rows and K columns expressed by a predetermined value M1 and the information length K = N × r, a B matrix of M1 rows and M1 columns, a Z matrix of M1 rows and N + L - K - M1 columns, a C matrix of N + L - K - M1 rows and K + M1 columns, and a D matrix of N + L - K - M1 rows and N + L - K - M1 columns. The present technology can be applied to data transmission and the like using an LDPC code.
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Inventors:
Makiko Yamamoto
Yuji Shinohara
Yuji Shinohara
Application Number:
JP2017107533A
Publication Date:
July 28, 2021
Filing Date:
May 31, 2017
Export Citation:
Assignee:
Sony Group Corporation
International Classes:
H03M13/19
Domestic Patent References:
| JP201254681A |
Foreign References:
| WO2015178216A1 |
Other References:
XU, Y. et al.,Improved Shortening Algorithm for Irregular QC-LDPC Codes Using Known Bits,IEEE Transactions on Consumer Electronics,2011年09月,Vol. 57, No. 3,pp. 1057-1063
KIM, K.-J. et al.,Low-Density Parity-Check Codes for ATSC 3.0,IEEE Transactions on Broadcasting,2016年02月,Vol. 62, No. 1,pp. 189-196
Digital Video Broadcasting (DVB); Frame structure channel coding and modulation for a second generation digital terrestrial television broadcasting system (DVB-T2),ETSI EN 302 755, V1.4.1,2015年07月,pp. 40-41, 76-82, 129-138
JAYASOORIYA, S. et al.,A New Density Evolution Approximation for LDPC and Multi-Edge Type LDPC Codes,IEEE Transactions on Communications,2016年08月,Vol. 64, No. 10,pp. 4044-4056
KIM, K.-J. et al.,Low-Density Parity-Check Codes for ATSC 3.0,IEEE Transactions on Broadcasting,2016年02月,Vol. 62, No. 1,pp. 189-196
Digital Video Broadcasting (DVB); Frame structure channel coding and modulation for a second generation digital terrestrial television broadcasting system (DVB-T2),ETSI EN 302 755, V1.4.1,2015年07月,pp. 40-41, 76-82, 129-138
JAYASOORIYA, S. et al.,A New Density Evolution Approximation for LDPC and Multi-Edge Type LDPC Codes,IEEE Transactions on Communications,2016年08月,Vol. 64, No. 10,pp. 4044-4056
Attorney, Agent or Firm:
Takashi Nishikawa
Yoshio Inamoto
Yoshio Inamoto