Title:
TRANSMISSION DEVICE, TRANSMISSION METHOD, RECEPTION DEVICE, AND RECEPTION METHOD
Document Type and Number:
WIPO Patent Application WO/2018/221242
Kind Code:
A1
Abstract:
This technology relates to a transmission device, a transmission method, a reception device, and a reception method that allow good transmission quality to be ensured during data transfer using an LDPC code. An extended LDPC code having parity bits with a parity length M=N+L-K is generated by performing LDPC coding of information bits with an information length K=N×r on the basis of an extended check matrix in which the rows and columns of a check matrix are extended by a puncture length L, said check matrix being for an LDPC code with a code length N of 69120 bits and a code rate r. A punctured LDPC code with a code length N of 69120 bits and a code rate r is generated by puncturing the initial L information bits of the extended LDPC code. The extended check matrix includes an A matrix with M1 rows and K columns, a B matrix with M1 rows and M1 columns, a Z matrix with M1 rows and N+L-K-M1 columns, a C matrix with N+L-K-M1 rows and K+M1 columns, and a D matrix with N+L-K-M1 rows and N+L-K-M1 columns, which are expressed with a prescribed value M1 and the information length K=N×r. This technology can be applied to data transfer using an LDPC code.
Inventors:
YAMAMOTO MAKIKO (JP)
SHINOHARA YUJI (JP)
SHINOHARA YUJI (JP)
Application Number:
PCT/JP2018/019106
Publication Date:
December 06, 2018
Filing Date:
May 17, 2018
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
H03M13/19
Domestic Patent References:
| WO2015178216A1 | 2015-11-26 |
Foreign References:
| JP2012054681A | 2012-03-15 | |||
| US4224777A | 1980-09-30 |
Other References:
XU, Y. ET AL.: "Improved Shortening Algorithm for Irregular QC-LDPC Codes Using Known Bits", IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, vol. 57, no. 3, September 2011 (2011-09-01), pages 1057 - 1063, XP011386541
KIM, K.-J. ET AL.: "Low-Density Parity-Check Codes for ATSC 3.0", IEEE TRANSACTIONS ON BROADCASTING, vol. 62, no. 1, February 2016 (2016-02-01), pages 189 - 196, XP011601490
ANONYMOUS: "Digital Video Broadcasting (DVB); Frame structure channel coding and modulation for a second generation digital terrestrial television", ETSI EN 302 755, vol. Broadcast, no. V1.4.1, 1 July 2015 (2015-07-01), pages 40 - 41 , 76- 82, 129-138, XP014225121
JAYASOORIYA, S. ET AL.: "A New Density Evolution Approximation for LDPC and Multi-Edge Type LDPC Codes", IEEE TRANSACTIONS ON COMMUNICATIONS, vol. 64, no. 10, August 2016 (2016-08-01), pages 4044 - 4056, XP011625809
ZHANG, Y. ET AL.: "Progressive Matrix Growth Algorithm for Constructing Rate-Compatible Length- Scalable Raptor-Like Quasi-Cyclic LDPC Codes", IEEE TRANSACTIONS ON BROADCASTING, January 2018 (2018-01-01), pages 1 - 14, XP011698983
H. JINA. KHANDEKARR. J. MCELIECE: "Irregular Repeat-Accumulate Codes", PROCEEDINGS OF 2ND INTERNATIONAL SYMPOSIUM ON TURBO CODES AND RELATED TOPICS, September 2000 (2000-09-01), pages 1 - 8
S. Y. CHUNGG. D. FORNEYT. J. RICHARDSONR. URBANKE: "On the Design of Low-Density Parity-Check Codes within 0.0045 dB of the Shannon Limit", IEEE COMMUNICATIONS LEGGERS, vol. 5, no. 2, February 2001 (2001-02-01)
See also references of EP 3633860A4
KIM, K.-J. ET AL.: "Low-Density Parity-Check Codes for ATSC 3.0", IEEE TRANSACTIONS ON BROADCASTING, vol. 62, no. 1, February 2016 (2016-02-01), pages 189 - 196, XP011601490
ANONYMOUS: "Digital Video Broadcasting (DVB); Frame structure channel coding and modulation for a second generation digital terrestrial television", ETSI EN 302 755, vol. Broadcast, no. V1.4.1, 1 July 2015 (2015-07-01), pages 40 - 41 , 76- 82, 129-138, XP014225121
JAYASOORIYA, S. ET AL.: "A New Density Evolution Approximation for LDPC and Multi-Edge Type LDPC Codes", IEEE TRANSACTIONS ON COMMUNICATIONS, vol. 64, no. 10, August 2016 (2016-08-01), pages 4044 - 4056, XP011625809
ZHANG, Y. ET AL.: "Progressive Matrix Growth Algorithm for Constructing Rate-Compatible Length- Scalable Raptor-Like Quasi-Cyclic LDPC Codes", IEEE TRANSACTIONS ON BROADCASTING, January 2018 (2018-01-01), pages 1 - 14, XP011698983
H. JINA. KHANDEKARR. J. MCELIECE: "Irregular Repeat-Accumulate Codes", PROCEEDINGS OF 2ND INTERNATIONAL SYMPOSIUM ON TURBO CODES AND RELATED TOPICS, September 2000 (2000-09-01), pages 1 - 8
S. Y. CHUNGG. D. FORNEYT. J. RICHARDSONR. URBANKE: "On the Design of Low-Density Parity-Check Codes within 0.0045 dB of the Shannon Limit", IEEE COMMUNICATIONS LEGGERS, vol. 5, no. 2, February 2001 (2001-02-01)
See also references of EP 3633860A4
Attorney, Agent or Firm:
NISHIKAWA Takashi et al. (JP)
Download PDF:
Previous Patent: DISTANCE MEASUREMENT SYSTEM
Next Patent: TRANSMISSION DEVICE, TRANSMISSION METHOD, RECEPTION DEVICE, AND RECEPTION METHOD
Next Patent: TRANSMISSION DEVICE, TRANSMISSION METHOD, RECEPTION DEVICE, AND RECEPTION METHOD