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Anti-interference method, circuit and mobile terminal

A circuit and interference source technology, applied in the field of communication, can solve problems such as poor stability, poor reliability, and high defect rate, and achieve the effects of good stability and reliability, reduced dependence, and low defect rate

Active Publication Date: 2017-10-20
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main technical problem to be solved by the present invention is to provide an anti-jamming method, circuit and mobile terminal to solve the problems of poor stability, poor reliability, high defective rate and The problem of poor versatility

Method used

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  • Anti-interference method, circuit and mobile terminal
  • Anti-interference method, circuit and mobile terminal
  • Anti-interference method, circuit and mobile terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Please refer to figure 1 , the anti-jamming method provided in this embodiment includes the following steps:

[0039] Step 101: Deriving the target interference signal to be suppressed from the interference source;

[0040] The interference sources here may be various interference sources in the terminal. In particular, it can be various interference sources in various mobile terminals (such as mobile phones, IPADs, etc.);

[0041] Step 102: performing inversion processing on the extracted target interference signal to obtain a signal whose phase is opposite to that of the target interference signal;

[0042] Step 103: Perform amplitude modulation processing on the signal obtained through inversion processing according to the target amplitude value of the target interference signal, and then obtain an interference suppression signal whose phase is opposite to that of the target interference signal and whose amplitude value is less than or equal to the target amplitude...

Embodiment 2

[0054] This embodiment provides an anti-jamming circuit, please refer to figure 2 shown, which includes:

[0055] Signal extraction circuit 1, which extracts the target interference signal to be suppressed from the interference source; the interference source here can be various interference sources in the terminal;

[0056] An inverting circuit 2, which is used to invert the target interference signal drawn by the signal lead-out circuit 1;

[0057] The amplitude modulation circuit 3 is used to perform amplitude modulation processing on the target interference signal after inversion processing according to the target amplitude value of the target interference signal to obtain an interference suppression signal whose phase is opposite to that of the target interference signal and whose amplitude value is less than or equal to the target amplitude value;

[0058] The suppression circuit 4 is configured to suppress the target interference signal through the interference suppre...

example 1

[0067] In the first way, the signal lead-out circuit 1 can be simply connected to the signal line of the interference source to lead out the target interference signal to be eliminated from the interference source, and the DC blocking circuit 5 can be realized specifically by using a DC blocking capacitor. Then it can be implemented by an inverter and an amplifier respectively, and the controller of the amplifier can be implemented by a baseband processing chip. For details, see Figure 4 shown. After the target interference signal drawn from the interference source is filtered by the DC component contained in it by the DC blocking capacitor 41, the phase adjustment circuit 42 performs a phase adjustment on the target interference signal according to the difference between the radiation path of the directional radiation antenna and the radiation path of the interference signal. Phase compensation debugging process, then it is inverted by the inverter 43, and finally its ampli...

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Abstract

The invention discloses an anti-interference method, circuit and mobile terminal. For an interference source, a target interference signal to be suppressed is led out from the interference source and subjected to anti-phase processing, amplitude modulation is carried out according to the target amplitude value of the target interference signal to further obtain an interference suppression signal, of which the phase is opposite to that of the target interference signal to be suppressed and the amplitude value is smaller than or equal to that of the target amplitude value, and the target interference signal in the interference source is suppressed through the obtained interference suppression signal. The interference is suppressed and eliminated from the root of the interference source. Compared with a conventional shielding cover means, the anti-interference method reduces reliance on a shielding cover, and is high in stability and reliability and low in defect rate. The anti-interference method, circuit and mobile terminal are more suitable for various types of interference sources, including high devices and connectors which can not be shielded through shielding covers.

Description

technical field [0001] The invention relates to the communication field, in particular to an anti-jamming method, circuit and mobile terminal. Background technique [0002] There are many interference sources on the current mobile phone, which seriously interfere with radio frequency reception. The current processing methods are to wrap the interference sources with shielding parts. Some specific methods are to use shielding ribs and shielding covers. The interference is wrapped up, blocking the transmission path of the interference signal, causing it to reflect multiple times in the shielding cavity, and finally weakening the interference. However, this processing method is not suitable for high-end components and connectors that cannot be packaged; and the current processing method is relatively poor in stability and reliability, and probabilistic defects often occur. Therefore, for each interference source on the mobile terminal, it is urgent to find a new, stable and re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/04H04B1/10H04B1/12
CPCH04B1/0475H04B1/10H04B1/126H04B15/02H04B1/525H04B1/04H01Q1/36H03H7/01H04B2001/0408
Inventor 季晓宇
Owner ZTE CORP
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