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Anti-interference method in receiver, anti-interference receiver and anti-interference device

A receiver and digital intermediate frequency technology, applied in the field of receivers, can solve problems such as interference failure, receiver performance impact, receiver communication interruption, etc., to achieve the effect of improving system performance

Active Publication Date: 2008-02-06
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the process of realizing the present invention, the inventor found the following problems in the prior art: the method of using a bandpass filter to suppress the receiver interference signal in the prior art, although the interference outside the bandwidth of the useful signal is suppressed, the useful signal Interference within the bandwidth is not suppressed
However, when the carrier signal is amplified, the interference signal is also amplified. The amplified interference signal may be greater than the highest point of the analog-to-digital converter and exceed the dynamic range of the analog-to-digital converter, overloading the analog-to-digital converter and affecting the performance of the receiver. Serious will lead to receiver communication interruption

Method used

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Embodiment Construction

[0046] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings.

[0047]In the embodiment of the present invention, cancellation processing is performed on the interference signal within the bandwidth of the useful signal in the signal to be processed in the receiver, and the signal after cancellation processing is obtained. The signal to be processed may be a signal between an antenna and an analog-to-digital converter within the receiver. Here, the module that performs cancellation processing in the receiver is referred to as an interference cancellation module. The location of the interference cancellation module is flexible, and it can be implemented on a radio frequency or an intermediate frequency. The following takes the structure shown in FIG. 7 as an example to specifically describe the anti-interference...

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Abstract

The present invention discloses an antijamming receiver, comprising an antijamming compensation module, which is used for distinctively disposing the antijamming signal inside the useful signal bandwidth amid all the signals and transmitting the disposed signal. The present invention also discloses an antijamming device and an antijamming method for receiver. The antijamming proposal of the receiver restrains the interference signal inside the useful signal bandwidth in unprocessed signal and increases systematic performance.

Description

technical field [0001] The invention relates to receiver technology, in particular to an anti-jamming method in the receiver, an anti-jamming receiver and an anti-jamming device. Background technique [0002] In a mobile communication base station, a receiver is required to receive wireless signals. In order to improve communication capacity, multi-carrier receivers are often used in mobile communication base stations, that is, a single radio frequency channel contains multiple wireless carriers, more specifically, in some links of the radio frequency channel such as a coaxial cable or a pair of differential lines The signal contains multiple carriers. Referring to FIG. 1 , it is a schematic diagram of carrier configuration of a multi-carrier receiver in the prior art. In the figure, fc is the center, and the five carriers within the bandwidth B are all useful signals. [0003] The multi-carrier configuration of the multi-carrier receiver is different according to the spec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/10H04B7/00H04Q7/30
CPCH04B1/123
Inventor 杨刚华叶四清朱尔霓
Owner HUAWEI TECH CO LTD
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