Title:
WIRELESS COMMUNICATION METHOD AND WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/225364
Kind Code:
A1
Abstract:
A demodulator demodulates a wireless signal and outputs first bit information; an interleave processing unit performs de-interleave processing on the first bit information to return bits that were exchanged with interleave processing to their original sequence and outputs second bit information; a decoder decodes the second bit information and outputs third bit information; a de-interleave processing unit performs interleave processing, which is the reverse process to the de-interleave processing, on the third bit information and generates fourth bit information, and performs a decoding process repeatedly by inputting the fourth bit information as advance information to the demodulator; a first code optimization processing unit generates control information for redundant bits on the basis of a combination of two pieces of likelihood information of repeated input and output of the decoding process; and a transmitting device uses at least one code word for which the free distance differs on the basis of the generated control information and transmits additional redundant bits.
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Inventors:
YAMAMOTO KEISUKE (JP)
YANO TAKASHI (JP)
YANO TAKASHI (JP)
Application Number:
PCT/JP2018/014518
Publication Date:
December 13, 2018
Filing Date:
April 05, 2018
Export Citation:
Assignee:
HITACHI INT ELECTRIC INC (JP)
International Classes:
H03M13/23; H03M13/27; H03M13/35; H03M13/37; H04L1/00; H04L1/18
Foreign References:
| JP2010087707A | 2010-04-15 | |||
| JP2014064112A | 2014-04-10 |
Other References:
IBI, SHINSUKE ET AL.: "EXIT chart-aided adaptive coding for multilevel BICM with turbo equalization in frequency-selective MIMO channels", IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol. 56, 6 November 2007 (2007-11-06), pages 3757 - 3769, XP011194731
ASSIMI, A. N. ET AL.: "Packet combining for turbo- diversity in HARQ systems with integrated turbo- equalization", TURBO CODES AND RELATED TOPICS, 2008 5TH INTERNATIONAL SYMPOSIUM, September 2008 (2008-09-01), pages 61 - 65, XP031353663
OTENG-AMOAKO, K. ET AL.: "Asymmetric rate compatible turbo codes in hybrid automatic repeat request schemes", IEE PROCEEDINGS-COMMUNICATIONS, vol. 153, 5 October 2006 (2006-10-05), pages 603 - 610, XP006027340
EL-HAJJAR, M. ET AL.: "EXIT charts for system design and analysis", IEEE COMMUNICATIONS SURVEYS & TUTORIALS, vol. 16, 1 May 2013 (2013-05-01), pages 127 - 153, XP011539563
ASSIMI, A. N. ET AL.: "Packet combining for turbo- diversity in HARQ systems with integrated turbo- equalization", TURBO CODES AND RELATED TOPICS, 2008 5TH INTERNATIONAL SYMPOSIUM, September 2008 (2008-09-01), pages 61 - 65, XP031353663
OTENG-AMOAKO, K. ET AL.: "Asymmetric rate compatible turbo codes in hybrid automatic repeat request schemes", IEE PROCEEDINGS-COMMUNICATIONS, vol. 153, 5 October 2006 (2006-10-05), pages 603 - 610, XP006027340
EL-HAJJAR, M. ET AL.: "EXIT charts for system design and analysis", IEEE COMMUNICATIONS SURVEYS & TUTORIALS, vol. 16, 1 May 2013 (2013-05-01), pages 127 - 153, XP011539563
Attorney, Agent or Firm:
TOU-OU PATENT FIRM (JP)
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