Title:
MULTIPLE ACCESS METHOD AND APPARATUS, AND COMMUNICATION SYSTEM, AND COMPUTER STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2018/130041
Kind Code:
A1
Abstract:
Proposed are a multiple access method and apparatus, and a communication system and a computer storage medium. The method comprises: performing binary domain or multi-domain channel encoding on data streams to obtain a plurality of binary domain or multi-domain encoded data; performing binary domain or multi-domain spread spectrum on each of the binary domain or multi-domain encoded data to obtain a plurality of binary domain or multi-domain spread spectrum data; mapping the binary domain or multi-domain spread spectrum data into modulated signals for sending; if the number of the data streams is singular, sending a modulated signal corresponding to the single data stream; and if the number of the data streams is multiple, performing constellation rotation and power scaling on the modulated signals for each path of data streams and then superimposing same together for sending. In order to increase flexibility and enhance performance, interleaver and scrambling can be further used to distinguish user and randomized multi-user interference. The present invention does not use repeated spread spectrum, but uses binary domain/multi-domain sequence spread spectrum, and uses binary domain/multi-domain channel encoding in channel encoding. The advantages of using multi-domain spread spectrum and multi-domain channel encoding are that extra modulation diversity gain can be obtained and a better performance than that based on the binary domain spread spectrum and the binary domain channel encoding is obtained, so that the overall performance of non-orthogonal multiple addresses is greatly improved. Using multi-stream transmission can effectively improve single-user spectrum efficiency.
Inventors:
YAN CHUNLIN (CN)
YUAN ZHIFENG (CN)
YUAN YIFEI (CN)
LI WEIMIN (CN)
YUAN ZHIFENG (CN)
YUAN YIFEI (CN)
LI WEIMIN (CN)
Application Number:
PCT/CN2017/115996
Publication Date:
July 19, 2018
Filing Date:
December 13, 2017
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
H04B1/69; H04L27/00
Foreign References:
| CN105515608A | 2016-04-20 | |||
| CN105959082A | 2016-09-21 | |||
| CN104202281A | 2014-12-10 |
Other References:
XU, JIN: "Research on Some Key Technologies in Non-Orthogonal Multiple Access", ELECTRONIC TECHNOLOGY & INFORMATION SCIENCE , CHINA DOCTORAL DISSERTATIONS FULL-TEXT DATABASE, 15 March 2016 (2016-03-15), pages 1 - 2
Attorney, Agent or Firm:
CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)
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