Signal transmitting method and device

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

Active Publication Date: 2019-08-30
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Signal transmitting method and device
  • Signal transmitting method and device

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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

The embodiment of the invention provides a signal transmitting method and device. According to the scheme, before a transmitting end transmits a signal, whether the spectrum environment where the transmitting end is located is consistent with the spectrum environment where a receiving end is located is judged, and specifically, the correlation coefficient of a spectrum modulation signal and a spectrum demodulation signal is calculated according to parameters representing power; whether the correlation coefficient reaches a first threshold value or not is judged, so that whether the spectrum environment is consistent or not is judged; under the condition that it is judged that the spectrum environment where the transmitting end is located is consistent with the spectrum environment where the receiving end is located, the signal is transmitted to the receiving end, and the error rate caused by inconsistency of the modulation signal transmitted by the transmitting end and the demodulationsignal obtained by the receiving end is avoided.

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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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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