Title:
OVERLAPPED MULTIPLEXING-BASED DECODING METHOD AND DEVICE, AND MODULATION AND DEMODULATION METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/068541
Kind Code:
A1
Abstract:
Provided in the present application are an overlapped multiplexing-based decoding method and device, and modulation and demodulation method and system. By means of sliding block decoding, the correlation between adjacent symbols in an OvXDM system is utilized, and a convolution operation having a head and no tail is divided into block operations having a head and a tail. A corresponding decoding algorithm is employed to decode each sequence, thus improving decoding efficiency, and lowering decoding complexity while ensuring superior system performance. The present invention solves the problem of low decoding efficiency in conventional communications system in which a received sequence is decoded symbol by symbol when Viterbi decoding is employed, and the problem of high decoding complexity caused by an increased number of overlapping operations.
Inventors:
LIU RUOPENG (CN)
JI CHUNLIN (CN)
XU XINGAN (CN)
ZHANG SHASHA (CN)
JI CHUNLIN (CN)
XU XINGAN (CN)
ZHANG SHASHA (CN)
Application Number:
PCT/CN2017/091966
Publication Date:
April 19, 2018
Filing Date:
July 06, 2017
Export Citation:
Assignee:
SHENZHEN SUPER DATA LINK TECH CO LTD (CN)
International Classes:
H04L1/00
Domestic Patent References:
| WO2008006246A1 | 2008-01-17 |
Foreign References:
| CN101471689A | 2009-07-01 | |||
| CN101557364A | 2009-10-14 | |||
| CN105553536A | 2016-05-04 | |||
| CN101262232A | 2008-09-10 | |||
| CN101431393A | 2009-05-13 |
Other References:
WANG, HAO ET AL.: "Time-frequency Overlapped Multiplex System and Fast Detection Approach", JOURNAL OF BEIJING UNIVERSITY OF TECHNOLOGY, vol. 37, no. 1, 31 January 2011 (2011-01-31), pages 53 - 59, XP009514232, ISSN: 0254-0037
JIN, XIN ET AL.: "Decoding OvTDM with Sphere-decoding Algorithm", THE JOURNAL OF CHINA UNIVERSITIES OF POSTS AND TELECOMMUNICATIONS, 31 December 2008 (2008-12-31), pages 35 - 39, XP025803237, DOI: doi:10.1016/S1005-8885(08)60399-4
See also references of EP 3525370A4
JIN, XIN ET AL.: "Decoding OvTDM with Sphere-decoding Algorithm", THE JOURNAL OF CHINA UNIVERSITIES OF POSTS AND TELECOMMUNICATIONS, 31 December 2008 (2008-12-31), pages 35 - 39, XP025803237, DOI: doi:10.1016/S1005-8885(08)60399-4
See also references of EP 3525370A4
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