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A method and device for transmitting a signal

A technology for transmitting signals and transmitting terminals, applied in the field of communication, can solve the problem of high signal error rate

Active Publication Date: 2022-03-18
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a method and device for transmitting signals to solve the defect of high bit error rate of transmitted signals in the prior art

Method used

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  • A method and device for transmitting a signal
  • A method and device for transmitting a signal
  • A method and device for transmitting a signal

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Embodiment Construction

[0040] In order for those skilled in the art to better understand the technical solutions of the present invention, the method and device for transmitting signals provided by the present invention will be described in detail below with reference to the accompanying drawings.

[0041] Example embodiments will be described more fully hereinafter with reference to the accompanying drawings, but may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0042] As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0043] The terminology used herein is for describing particular embodiments only and is not intended to limit the present disclosure. As used herein, the singular forms "a" and "the" ar...

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Abstract

Embodiments of the present invention propose a method and device for transmitting signals. In this scheme, before transmitting a signal, the transmitting terminal first judges whether the spectrum environment of the transmitting terminal is consistent with the spectral environment of the receiving terminal. Calculate the correlation coefficient between the spectrum modulation signal and the spectrum demodulation signal according to the parameters representing the power; judge whether the correlation coefficient reaches the first threshold "to realize the judgment of whether the spectrum environment is consistent, and determine the spectrum environment where the transmitter is located The signal is transmitted to the receiving end only when it is in the same spectrum environment as the receiving end, which avoids the bit error rate caused by the inconsistency between the modulated signal transmitted by the transmitting end and the demodulated signal obtained by the receiving end.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for transmitting signals. Background technique [0002] The transmitter of TDCS (Transform Domain Communication System) uses CR (Cognitive Radio) technology to perceive the spectrum environment of the transmission band, constructs a transmission waveform orthogonal to interference, and only allocates signal energy in the available frequency band to avoid interference. Since the TDCS transmitter does not use carrier modulation, but modulates the signal through a baseband waveform with noise-like characteristics, the TDCS signal has the advantages of low detection and low probability of interception, and is generally suitable for transmitting signals in interference environments. [0003] However, since the receiving end and the transmitting end of the system cannot be guaranteed to be in the same spectral environment, when the receiving end and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
CPCH04L1/0015H04L1/0033
Inventor 智晓欢陶冶刘伟于城陈璐
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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