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Signal transmitting method and device

A technology for transmitting signals and signals, which is applied in the field of communication and can solve complex problems

Inactive Publication Date: 2019-07-30
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

[0005] Embodiments of the present invention provide a method and device for transmitting signals to solve the defect of high complexity in the method for controlling signal distortion in the prior art

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

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Embodiment Construction

[0051] 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.

[0052] 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.

[0053] As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0054] 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, and the method comprises the steps: determining the power of a multi-carrier modulation signal; judging whether the power reaches a threshold value or not, if yes, adjusting the amplitude of the multi-carrier modulation signal, and transmitting the multi-carrier modulation signal with the adjusted amplitude. According to the scheme, the power of the multi-carrier modulation signal and the threshold value are judged firstly, then the amplitude of the multi-carrier modulation signal with the power reaching the threshold value is adjusted, the power of the multi-carrier modulation signal is adjusted by adjusting the amplitude of the multi-carrier modulation signal, and signal distortion is controlled by adoptinglow complexity.

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] OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) technology divides a channel with a given bandwidth into several mutually orthogonal sub-channels, each sub-channel modulates the signal in a separate way, and then the modulation of each sub-channel The final signals are superimposed together for transmission. [0003] OFDM signals have the characteristics of high spectrum utilization and can be used for frequency selective fading. However, when the phases of multiple sub-channel signals are consistent, the instantaneous signal power will be much higher than the average power, resulting in a large PAPR (Peak- to-Average Power Ratio, peak-to-average power ratio), and larger PAPR signals are prone to signal distortion during transmission, destroyin...

Claims

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Application Information

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IPC IPC(8): H04L27/26H04B1/04
CPCH04L27/2627H04B1/04H04B2001/0416H04B2001/0491
Inventor 智晓欢陶冶刘伟曹咪边林
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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