Anti-interference method

A jammed, signaled technology, applied in the information field, that can solve problems such as lack of pertinence and effectiveness

Active Publication Date: 2016-09-21
SHANGHAI RES CENT FOR WIRELESS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide an anti-interference method to solve the problem of lack of pertinence and effectiveness when the existing anti-interference method is applied to the TD-LTE system

Method used

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Embodiment Construction

[0038] The anti-jamming method proposed by the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0039] Please refer to figure 1 , which is a flowchart of the anti-jamming method of the present invention, such as figure 1 As shown, the anti-jamming method includes:

[0040] First, execute step S1 to obtain the optimal decision threshold of the signal;

[0041] Next, step S2 is executed, using the optimal decision threshold value to judge whether there is interference on the frequency domain subcarrier corresponding to the signal received by the receiving end of the TD-LT...

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Abstract

The invention provides an anti-interference method comprising steps of: acquiring the optimal decision threshold value of a signal on the basis of the frequency division characteristic of OFDM technology used by a TD-LTE system; determining, by using the optimal decision threshold value, whether interference exists in a frequency-domain subcarrier corresponding to a signal received by the receiving end of the TD-LTE system, and reassigning, if yes, a signal carried by the subcarrier subjected to interference to the subcarrier without interference, namely reassigning the spectrum resource without interference. Thus, the anti-interference method may avoid interference when signals are transmitted to increase the reliability of signal transmission and achieve an anti-interference purpose.

Description

technical field [0001] The invention relates to the field of information technology, in particular to an anti-jamming method. Background technique [0002] With the continuous and in-depth application of TD-LTE broadband wireless communication technology in smart grids, national defense and military and other special fields, the electromagnetic environment faced by broadband wireless communication private networks has become more and more complex. In the civil field, due to the widespread use of a large number of different communication systems, there are related problems such as the shortage of spectrum resources and the complex electromagnetic environment. In the military field, current communication jamming equipment generally uses high power, has the ability to be programmable and jam multiple targets at the same time. Using multiple receivers, multiple exciters and solid-state power amplifiers with high-power transistors, matched with high-gain antennas, can monitor an...

Claims

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Application Information

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IPC IPC(8): H04L27/26H04W16/10H04W72/04
CPCH04L27/2691H04W16/10H04W72/0453
Inventor 陆犇
Owner SHANGHAI RES CENT FOR WIRELESS TECH
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