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1. (WO2016062120) MULTI-USER COMMUNICATION METHOD AND APPARATUS OF CODE DIVISION MULTIPLE ACCESS

Pub. No.:    WO/2016/062120    International Application No.:    PCT/CN2015/083479
Publication Date: Fri Apr 29 01:59:59 CEST 2016 International Filing Date: Wed Jul 08 01:59:59 CEST 2015
IPC: H04L 27/26
Applicants: ZTE CORPORATION
中兴通讯股份有限公司
Inventors: YUAN, Zhifeng
袁志锋
LI, Weimin
李卫敏
Title: MULTI-USER COMMUNICATION METHOD AND APPARATUS OF CODE DIVISION MULTIPLE ACCESS
Abstract:
The present invention provides a multi-user communication method and apparatus of a Code Division Multiple Access, and the method includes: obtaining a number N of modulation symbols obtained after modulation of code blocks encoded by a channel encoder, wherein N is a positive integer greater than or equal to 2; extending a number N of modulation symbols according to a number N of the extension sequences with designated lengths, and at least two extension sequences are different in a number N of the extension sequences with designated lengths; and transmitting the extended modulation symbols. By adopting the above technical solution provided by the present invention, the problem that inter-user interferences could not be effectively randomized or equalized due to the fact that one user only uses one extension sequence to extend all the modulation symbols in the related art is solved, and the multi-access performance is improved. Each access user can use multiple types of different extension sequences to extend the modulation symbols thereof, thus inter-user interferences can be validly randomized or equalized.