OVERLAPPED MULTIPLEXING MODULATION METHOD, APPARATUS AND SYSTEM

WIPO Patent Application WO/2017/107938

A1

The present invention relates to an overlapped multiplexing modulation method, apparatus and system. The method comprises: generating an initial envelope waveform which is smooth in the time domain or frequency domain according to design parameters; shifting the initial envelope waveform in the time domain or frequency domain at a preset spectrum interval according to the number of times of overlapped multiplexing to obtain envelope waveforms of subcarriers; converting an inputted sequence of digital signals into a sequence of sign symbols; multiplying symbols in the sequence of sign symbols by the corresponding envelope waveforms of the subcarriers to obtain modulated envelope waveforms of the subcarriers; performing superposition on the modulated envelope waveforms of the subcarriers in the time domain or frequency domain to obtain a multiplex-modulated envelope waveform in the time domain or the frequency domain; and transforming the multiplex-modulated envelope waveform in the time domain or frequency domain to obtain a multiplex-modulated envelope waveform in the time domain or frequency domain. The obtained multiplex-modulated envelope waveform is smooth and energy-concentrated in the time domain or frequency domain and has a short duration, so that the spectrum utilization rate and signal transmission rate are high, and the transmission power and bit error rate are low.

LIU RUOPENG (CN)
JI CHUNLIN (CN)
ZHANG SHASHA (CN)

PCT/CN2016/111405

June 29, 2017

December 22, 2016

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SHENZHEN SUPER DATA LINK TECH CO LTD (CN)

H04J1/00; H04L5/22; H04J3/00

WO2008006246A1	2008-01-17
WO2008019529A1	2008-02-21

CN104639493A

2015-05-20

See also references of EP 3396891A4

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