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Patent Searching and Data


Title:
WIRELESS COMMUNICATION METHOD AND WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/159430
Kind Code:
A1
Abstract:
In this wireless communication system which transmits data from a transmission device to a receiving device, the transmission device has a modulator which outputs DPSK signals in parallel by using OFDM, and the receiving device is composed of: an MLSE demodulator which demodulates a wireless signal and outputs bit information; a decoder which decodes the bit information; an interleave processing unit which exchanges a bit sequence of the bit information; a deinterleaver for differential phase-shift keying; and a deinterleave processing unit which is composed of a deinterleaver for repetitive decoding having a block length smaller than that of the deinterleaver for differential phase-shift keying, and exchanges the bit sequence of the bit information, wherein the deinterleaver for differential phase-shift keying has a function of performing a deinterleave process by exchanging a time sequence of the DPSK signals transmitted in parallel.

Inventors:
YAMAMOTO, Keisuke (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
Application Number:
JP2018/038055
Publication Date:
August 22, 2019
Filing Date:
October 12, 2018
Export Citation:
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Assignee:
HITACHI KOKUSAI ELECTRIC INC. (15-12, Nishi-shimbashi 2-chome Minato-k, Tokyo 39, 〒1058039, JP)
International Classes:
H03M13/27; H03M13/45; H04L27/18; H04L27/26
Domestic Patent References:
WO2017168821A12017-10-05
Foreign References:
JP2013168719A2013-08-29
Other References:
LI, XIAODONG ET AL.: "Bit-interleaved coded modulation with iterative decoding", IEEE COMMUNICATIONS LETTERS, vol. 1, 6 November 1997 (1997-11-06), pages 169 - 171, XP055633768
NISHIMOTO, HIROSHI ET AL.: "Blind Iterative Decoding in Bit-Interleaved Coded DPSK", IEICE TECHNICAL REPORT, vol. 107, 27 February 2008 (2008-02-27), pages 193 - 198, XP008173889
Attorney, Agent or Firm:
TOU-OU PATENT FIRM (Urban Toranomon Bldg, 16-4 Toranomon 1-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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