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Method and device for detecting base station interference

A base station and signal technology, which is applied in the direction of safety devices, transmission monitoring, electrical components, etc., can solve the problem of not being able to quickly and accurately output the base station identification of the GPS deviation source directly, and achieve the effect of reducing the interference period and improving the accuracy rate

Active Publication Date: 2019-07-30
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology

[0007] The disadvantage of the above solution is that the PCI of the cell where the GPS deviation source is detected based on the offline data cannot quickly and accurately directly output the base station identification of the GPS deviation source or exclude the behavior of the private network pseudo base station

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  • Method and device for detecting base station interference
  • Method and device for detecting base station interference
  • Method and device for detecting base station interference

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Embodiment Construction

[0051] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0052] refer to figure 1 , shows a flow chart of the steps of an embodiment of a method for detecting base station interference according to the present invention, which may specifically include the following steps:

[0053] Step 101, when the base station detects that the received signal includes a downlink signal, judge whether the downlink signal satisfies a preset condition;

[0054] Generally speaking, the range of GPS deviation is 40 kilometers, so in the embodiment of the present invention, the base station will perform blind detection on the signals of all other base stations within the range, that is, accept the CRS (Cell Reference Signal) sent by all other base stations within the range. , cell reference sig...

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Abstract

The embodiment of the invention provides a method and device for detecting base station interference, and the method comprises the steps of judging whether a downlink signal meets a preset condition or not when the base station detects that the received signal comprises the downlink signal; if yes, extracting a physical cell identifier in the downlink signal; acquiring an uplink signal in the signal received by the base station; detecting whether the physical cell identifier exists in the uplink signal or not; and if yes, determining an interference source base station based on the physical cell identifier. According to the embodiment of the invention, by performing online detection on the signal received by the base station, the base station identification of the GPS deviation interference source is directly outputted or the behavior of the private network pseudo base station is excluded, the interference period of the GPS deviation to the network is reduced, and the accuracy of the GPS deviation detection is also improved.

Description

technical field [0001] The present invention relates to the technical field of base station communication, in particular to a method for detecting base station interference and a device for detecting base station interference. Background technique [0002] In the LTE TDD (Long Term Evolution Time Division Duplexing, Time Division Long Term Evolution Time Division Duplexing) system, since the time division duplex mode is adopted, the clock synchronization requirement of the system is very high. In the same network, if the clocks of a certain base station are not synchronized with those of other surrounding base stations, the downlink signal of this base station will be received by the uplink signals of other surrounding base stations, thereby interfering with the uplink reception of other surrounding base stations. The out-of-synchronization of the clocks of the base station and other surrounding base stations is called GPS deviation, and the base station with GPS deviation i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/04H04W12/12H04W12/122
CPCH04W24/04H04W12/12H04B17/318
Inventor 汪江波
Owner DATANG MOBILE COMM EQUIP CO LTD
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