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1. (WO2017156712) CODE DIVISION MULTIPLE ACCESS DEMODULATION METHOD, MODULATION END, DEMODULATION END AND SYSTEM

Pub. No.:    WO/2017/156712    International Application No.:    PCT/CN2016/076408
Publication Date: Fri Sep 22 01:59:59 CEST 2017 International Filing Date: Wed Mar 16 00:59:59 CET 2016
IPC: H04L 27/26
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: SUI, Meng
隋猛
Title: CODE DIVISION MULTIPLE ACCESS DEMODULATION METHOD, MODULATION END, DEMODULATION END AND SYSTEM
Abstract:
Disclosed are a code division multiple access demodulation method, a modulation end, a demodulation end and a system. The method comprises: a demodulation end receiving a code division multiple access modulation signal sent by a modulation end; the demodulation end using a first demodulation codeword corresponding to a target receiving end and pre-stored by the demodulation end to demodulate the code division multiple access modulation signal so as to obtain an original signal, wherein the first demodulation codeword is a demodulation codeword obtained by means of a first modulation codeword, corresponding to the target sending end and sent by the modulation end, passing through a transmission channel between the modulation end and the demodulation end; and the demodulation end sending the original signal to the target receiving end. Using a first demodulation codeword carrying a transmission channel characteristic between the modulation end and the demodulation end to demodulate a code division multiple access modulation signal can restore an original signal more accurately, improve signal transmission efficiency, and have a high signal to noise ratio.