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1. (WO2018119908) DATA TRANSMISSION METHOD AND DEVICE

Pub. No.:    WO/2018/119908    International Application No.:    PCT/CN2016/113103
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Fri Dec 30 00:59:59 CET 2016
IPC: H04L 27/26
Applicants: SHENZHEN TINNO WIRELESS TECHNOLOGY CO., LTD
深圳天珑无线科技有限公司
Inventors: LI, Ming
李明
LIU, Wenfei
刘雯菲
Title: DATA TRANSMISSION METHOD AND DEVICE
Abstract:
The embodiments of the present application provide an information transmission method and device. The information transmission method provided in the embodiments of the present application, comprising: a transmitting end converting a modulated, to-be-sent signal, which is a frequency domain signal, into a time domain signal by means of inverse fast Fourier transform (IFFT); using a filter to process the converted time domain signal, the filter enabling the numerical value of a minimum mean squared error (MSE) to reach the minimum value after a valid receiving end demodulates the received signal; and the transmitting end transmitting, by means of a channel, the processed to-be-sent signal to the valid receiving end. The technical solution provided in the present application destructs the orthogonality of an invalid receiving end receiving a signal, and interferes with the restoration of signals at the invalid receiving end restoring the signal, whilst not impacting the communication of a valid receiving end, thereby achieving the effect of ensuring the communication security.