Title:
WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/176147
Kind Code:
A1
Abstract:
The present invention improves a required C/N of a wireless communication system in which a transmission device wirelessly transmits a signal to a receiving device. A BCJR decoder 22 decodes information bits so as to maximize a posteriori probability on the basis of a log-likelihood ratio with respect to encoded bits obtained by a demodulator 21 and prior information on the information bits. A selection unit 2a selects, from among RS decoding results of packets of N patterns, what to output as a decoded result on the basis of a syndrome calculation result of each packet. Interleaving 2b is performed on information based on the selection result from the selection unit 2a, for sorting in the same sequence as that of interleaving 12 of a transmitter. Information after the sorting by the interleaving 2b is fed back to the BCJR decoder 22 as prior information corresponding to the information bits.
Inventors:
NAKADA TATSUHIRO (JP)
Application Number:
PCT/JP2018/036370
Publication Date:
September 19, 2019
Filing Date:
September 28, 2018
Export Citation:
Assignee:
HITACHI INT ELECTRIC INC (JP)
International Classes:
H03M13/39; H03M13/15; H03M13/23; H03M13/27; H03M13/29; H04L1/00
Foreign References:
| JPH10178355A | 1998-06-30 | |||
| JP2017022651A | 2017-01-26 | |||
| JPH06197026A | 1994-07-15 |
Other References:
HENNA, TSUNENORI ET AL.: "Performance improvement by an iterative decoding of Max-Log-MAP -Erasure RS code", IEICE TECHNICAL REPORT, vol. 108, no. 305, 12 November 2008 (2008-11-12), pages 113 - 118, XP008175328
IANCU, D. ET AL.: "Improved spectral efficiency through iterative concatenated convolutional reed-solomon software decoding", JOINT 1ST WORKSHOP ON MOBILE FUTURE, 2006 AND THE SYMPOSIUM ON TRENDS IN COMMUNICATIONS, SYMPO TIC 06, 9 October 2006 (2006-10-09), pages 1 - 5, XP010941808
TAIRA, YOSHINORIRENSO ET AL.: "Performance improvement by an iterative decoding of viterbi-reed-solomon code", IEICE TECHNICAL REPORT, vol. 108, no. 249, 15 October 2008 (2008-10-15), pages 43 - 47
MAEHARA, SHINYA ET AL.: "Study on turbo decoding using error and erasure decoder of RS codes as a hard-in soft-out decoder", IEICE TECHNICAL REPORT, vol. 106, no. 599, 9 March 2007 (2007-03-09), pages 155 - 160
IANCU, D. ET AL.: "Improved spectral efficiency through iterative concatenated convolutional reed-solomon software decoding", JOINT 1ST WORKSHOP ON MOBILE FUTURE, 2006 AND THE SYMPOSIUM ON TRENDS IN COMMUNICATIONS, SYMPO TIC 06, 9 October 2006 (2006-10-09), pages 1 - 5, XP010941808
TAIRA, YOSHINORIRENSO ET AL.: "Performance improvement by an iterative decoding of viterbi-reed-solomon code", IEICE TECHNICAL REPORT, vol. 108, no. 249, 15 October 2008 (2008-10-15), pages 43 - 47
MAEHARA, SHINYA ET AL.: "Study on turbo decoding using error and erasure decoder of RS codes as a hard-in soft-out decoder", IEICE TECHNICAL REPORT, vol. 106, no. 599, 9 March 2007 (2007-03-09), pages 155 - 160
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