CN109474933B - A kind of positioning method and device of pseudo base station - Google Patents

Abstract

The present invention provides a method and device for locating a pseudo base station, which relate to the field of communications and are used for quickly and accurately locating the position of the pseudo base station. The method for locating a pseudo base station includes: acquiring the handover failure signaling of each base station within a certain period of time; screening the base stations whose number of occurrences of the handover failure signaling exceeds a preset threshold as a first set of base stations with pseudo base stations around; Select one base station in the base station set as the positioning source base station, and select one or more base stations whose linear distance from the positioning source base station is less than the first preset distance from the remaining base stations in the first base station set, as the first base station with the same pseudo base station around. Two base station sets; determine a third base station set with pseudo base stations around according to the second base station set; locate the position of the pseudo base station according to the third base station set. The embodiments of the present application are applied to the positioning of pseudo base stations.

Description

A kind of positioning method and device of pseudo base station

technical field

The present invention relates to the field of communications, and in particular, to a method and device for locating a pseudo base station.

Background technique

The pseudo base station mainly uses the legal frequency band of the telecom operator to transmit signals. When the terminal accesses the coverage area of the pseudo base station, it induces the user terminal to update the tracking area within a certain geographical range, and completes the collection of user information and data in the coverage area during this process. . At the same time, the signal transmitted by the pseudo base station will cause interference to the normal operator's network, which will seriously affect the user experience. Therefore, it is very necessary to quickly and effectively locate the position of the pseudo base station.

At present, the positioning of pseudo base stations is mainly achieved through user complaints or daily network optimization tests, and a few are based on tracking area update signaling. The positioning method of the pseudo base station that passes user complaints or daily network optimization tests not only consumes a lot of test resources, but also finds problems that are point-like and cannot be screened quickly and effectively. The positioning method of the pseudo base station based on the tracking area update signaling is mainly to locate the position of the pseudo base station by obtaining the cell address information in the location update signaling that the terminal re-initiated to the network after it escapes the influence of the pseudo base station. When the pseudo base station of the 4th generation (4G) communication is used, the obtained location update signaling only contains the tracking area information and does not include the location information of the cell, and there are many sites in a tracking area, so it is impossible to locate the specific base station location. The positioning accuracy is obviously insufficient.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a method and device for locating a pseudo base station, which can solve the problems of complex and insufficient accuracy in locating a pseudo base station in the prior art, and can quickly and accurately locate the position of the pseudo base station.

To achieve the above object, the embodiments of the present invention adopt the following technical solutions:

In a first aspect, an embodiment of the present invention provides a method for locating a pseudo base station, where the method includes:

Obtain the handover failure signaling of each base station within a certain period of time;

Screening the base stations where the number of occurrences of the handover failure signaling exceeds a preset threshold, as the first set of base stations with pseudo base stations around;

Select one base station from the first base station set as a positioning source base station, and select one or more base stations whose linear distance from the positioning source base station is less than a first preset distance from the remaining base stations in the first base station set, as a second set of base stations with the same pseudo base station around;

determining, according to the second set of base stations, a third set of base stations around which pseudo base stations exist;

According to the third set of base stations, the positions of the pseudo base stations are located.

In a second aspect, an embodiment of the present invention provides a positioning device for a pseudo base station, including:

a signaling acquisition unit, used for acquiring the handover failure signaling of each base station within a certain period of time;

a signaling screening unit, configured to screen a base station whose number of occurrences of the handover failure signaling obtained by the signaling obtaining unit exceeds a preset threshold, as a first set of base stations with pseudo base stations around;

a first positioning unit, configured to select a base station from the first base station set determined by the signaling screening unit as a positioning source base station, and select a straight line with the positioning source base station from the remaining base stations in the first base station set One or more base stations with a distance less than the first preset distance are used as a second set of base stations around which the same pseudo base station exists;

a second positioning unit, configured to determine, according to the second set of base stations determined by the first positioning unit, a third set of base stations around which pseudo base stations exist;

The third positioning unit is configured to locate the position of the pseudo base station according to the third base station set determined by the second positioning unit.

In a third aspect, a computer-readable storage medium storing one or more programs is provided, wherein the one or more programs include instructions, and the instructions, when executed by a computer, cause the computer to execute as described in Section 1. In one aspect, the method for locating a pseudo base station is described.

In a fourth aspect, a computer program product containing instructions is provided, wherein when the instructions are executed on a computer, the computer is caused to execute the method for locating a pseudo base station according to the first aspect.

A fifth aspect provides a positioning device for a pseudo base station, characterized by comprising: a processor and a memory, the memory is used to store a program, and the processor invokes the program stored in the memory to execute the pseudo base station according to the first aspect positioning method.

The method and device for locating a pseudo base station provided by the present invention acquires the handover failure signaling that may be affected by the pseudo base station to determine the base station that may be affected by the pseudo base station, and then sets a preset threshold for the number of occurrences of the handover failure signaling to filter The base stations that may be affected by environmental factors and generate handover failure signaling are determined, and the base stations affected by the pseudo base stations are determined.

Description of drawings

FIG. 1 is a schematic diagram of a basic structure of a communication system according to an embodiment of the present invention;

FIG. 2 is a schematic flowchart 1 of a method for locating a pseudo base station according to an embodiment of the present invention;

3 is a schematic diagram of a result of locating a single pseudo base station according to an embodiment of the present invention;

4 is a second schematic flowchart of a method for locating a pseudo base station according to an embodiment of the present invention;

5 is a schematic diagram of the result of locating all pseudo base stations in an area by repeating the positioning according to an example of the present invention;

6 is a schematic structural diagram 1 of a positioning apparatus of a pseudo base station according to an embodiment of the present invention;

FIG. 7 is a second schematic structural diagram of a positioning apparatus for a pseudo base station according to an embodiment of the present invention.

Detailed ways

The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

As shown in FIG. 1, an embodiment of the present invention provides a communication system, where the communication system includes a mobility management entity (mobility management entity, MME) 110, a base station (evolved node b, eNodeB) 120 that provides services for user terminals, and The S1-MME interface 130 between the eNodeB 120 and the MME 110, wherein a pseudo base station may exist within the coverage of each eNodeB 120.

The present invention provides a method for locating a pseudo base station, by first determining a set of base stations affected by the pseudo base station, and then accurately locating the position of the pseudo base station according to the affected base station set. The method can quickly and accurately locate the position of the pseudo base station.

Embodiment 1,

This embodiment provides a positioning method for a pseudo base station, which is applied to the above communication system. As shown in FIG. 2 , the positioning method specifically includes:

S101. Acquire handover failure signaling of each base station within a certain period of time.

When the user terminal passes through the coverage area of the pseudo base station, since the pseudo base station transmits a strong signal and uses the same frequency band as the operator, the source base station will initiate a handover request to the pseudo base station. However, the pseudo base station is an illegal site and has not been configured with legal data in the operator's existing network. Therefore, the handover initiated by the source base station to the pseudo base station will fail.

The handover failure signaling of each base station may be the S1 handover failure signaling of the S1-MME interface 130, and the reason value of the handover failure is all signaling of unknown-targetID(11).

Exemplarily, a certain time period may be 7:00-9:00, 11:30-14:30, and 17:30-22:30, which are three busy time periods with high traffic.

By collecting the handover failure signaling of each base station within a certain period of time, the base stations that may be affected by the pseudo base station are determined.

S102. Screen the base stations whose occurrences of the handover failure signaling exceed a preset threshold as the first set of base stations with pseudo base stations around.

In the handover failure signaling of each base station collected in S101, there may be handover failure signaling caused by incomplete signaling or reporting errors caused by unstable transmission environment. Therefore, a preset threshold is set, and a base station whose number of occurrences of handover failure signaling is lower than the preset threshold is determined to be no pseudo base station nearby. The base station with the threshold value is regarded as the base station affected by the pseudo base station.

S103. Select one base station from the first base station set as the positioning source base station, and select one or more base stations whose straight-line distance from the positioning source base station is less than the first preset distance from the remaining base stations in the first base station set, as the existence of the same base station in the surrounding area. A second set of base stations of a pseudo base station.

Exemplarily, the first preset distance may be twice the sum of the coverage radius of the positioning source base station and the influence radius of the pseudo base station.

S104. Determine, according to the second set of base stations, a third set of base stations around which pseudo base stations exist.

That is, the average value of the geographic locations of all base stations in the second base station set is calculated, and the first center point of the geographic locations of all base stations in the second base station set is obtained, and the distance from the first center point in the second base station set is smaller than the second preset The base stations of the distance are used as the third base station set.

The second preset distance may be the sum of the coverage radius of the positioning source base station and the influence radius of the pseudo base station. Wherein, the second preset distance is smaller than the first preset distance.

S105. According to the third base station set, locate the position of the pseudo base station.

That is, calculate the average of the geographic locations of all base stations in the third base station set, and obtain the second center point of the geographic locations of all base stations in the third base station set, where the second center point is the location of the pseudo base station that affects the third base station set. .

Specifically, it can be implemented by the following steps: obtaining the handover failure signaling and filtering the base stations whose occurrence times exceed the preset threshold as the first set of base stations. Choose a base station A from the first base station set as the center of the circle, and draw a circle with the radius as the first preset distance. The base stations A, B, C, D, E, F, and G in the first base station set within the circle are used as the A second set of base stations of the same pseudo base station exists around base station A, and the first center points of all base stations are obtained by calculation. Draw a circle with the first center point as the center, the second preset distance as the radius, and A, B, C, D, and E in the circle as the third set of base stations, and calculate the second center point of all base stations, the second center point is the location of the pseudo base station for positioning.

FIG. 3 is a schematic diagram of a result of positioning a single pseudo base station in this embodiment.

The method for locating the pseudo base station provided by the present invention determines the base station that may be affected by the pseudo base station according to the handover failure signaling that is affected by the pseudo base station, and then sets a preset threshold value of the occurrence times of the handover failure signaling to filter out the possibly affected base station. Environmental factors affect the base station that generates the handover failure signaling, and determine the base station affected by the pseudo base station; by repeatedly determining the center point of the set of base stations affected by the pseudo base station, the geographic location of the pseudo base station can be quickly and accurately positioned.

As shown in FIG. 4 , S106 may also be included after S105 to locate the positions of all pseudo base stations, and the specific contents are as follows:

S106. Remove the positioning source base station and the base stations in the third base station set from the first base station set.

The affected base stations around the located pseudo base station are removed to avoid repeated positioning of the found pseudo base station. S103 to S105 are repeatedly performed until all base stations are removed from the first base station set, and finally the positions of all pseudo base stations are located.

FIG. 5 is a schematic diagram of the result of locating all pseudo base stations in an area by repeating the positioning in this embodiment.

Using signaling data within a day in a certain area, the preset threshold is set to 50 in S102, the first preset distance is set to 1400m in S103, and the second preset distance is set to 700m in S104. There are 19 base stations, and the black marks in FIG. 5 are pseudo base stations located using the positioning method of this embodiment.

Embodiment 2,

This embodiment provides a positioning device for a pseudo base station, which is applied to the above-mentioned positioning method for a pseudo base station. As shown in FIG. 6 , the positioning device specifically includes:

The signaling obtaining unit 201 is configured to obtain the handover failure signaling of each base station within a certain period of time.

The signaling screening unit 202 is configured to screen the base stations whose number of occurrences of the handover failure signaling obtained by the signaling obtaining unit exceeds a preset threshold, as a first set of base stations with pseudo base stations around.

The first positioning unit 203 is configured to select one base station from the first base station set determined by the signaling screening unit as a positioning source base station, and select a base station that is the same as the positioning source base station from the remaining base stations in the first base station set. One or more base stations whose straight-line distance is less than the first preset distance are regarded as a second set of base stations around which the same pseudo base station exists.

The second positioning unit 204 is configured to determine, according to the second set of base stations determined by the first positioning unit, a third set of base stations around which pseudo base stations exist.

That is, the average value of the geographic locations of all base stations in the second base station set is calculated, and the first center point of the geographic locations of all base stations in the second base station set is obtained, and the distance from the first center point in the second base station set is smaller than the second preset The base stations of the distance are used as the third base station set.

The second preset distance may be the sum of the coverage radius of the positioning source base station and the influence radius of the pseudo base station. Wherein, the second preset distance is smaller than the first preset distance.

The third positioning unit 205 is configured to locate the position of the pseudo base station according to the third base station set determined by the second positioning unit.

That is, calculate the average of the geographic locations of all base stations in the third base station set, and obtain the second center point of the geographic locations of all base stations in the third base station set, where the second center point is the location of the pseudo base station that affects the third base station set. .

As shown in FIG. 7 , after the third positioning unit 205, a repeated positioning unit 206 may also be included to locate the positions of all pseudo base stations, and the specific contents are as follows:

The repeating positioning unit 206 is configured to remove the positioning source base station and the base stations in the third base station set from the first base station set.

Embodiments of the present invention provide a computer-readable storage medium storing one or more programs including instructions that, when executed by a computer, cause the computer to perform as shown in FIGS. 2 and 4 . The positioning method of the pseudo base station described above.

Embodiments of the present invention provide a computer program product containing instructions, which, when executed on a computer, cause the computer to execute the method for locating a pseudo base station as described in FIG. 2 and FIG. 4 .

An embodiment of the present invention provides a positioning apparatus for a pseudo base station, including: a processor and a memory, the memory is used to store a program, and the processor calls the program stored in the memory to execute the pseudo base station described in FIG. 2 and FIG. 4 . positioning method.

Since the positioning device, computer-readable storage medium, and computer program product of the pseudo base station in the embodiments of the present invention can be applied to the positioning method of the pseudo base station, the technical effects that can be obtained may also refer to the above method embodiments. The embodiments of the present invention will not be repeated here.

It should be noted that the above-mentioned units may be processors established separately, or may be integrated into a certain processor of the controller to be implemented. In addition, they may also be stored in the memory of the controller in the form of program codes, and the controller A certain processor of the system calls and executes the functions of the above units. The processor described here may be a central processing unit (Central Processing Unit, CPU), or a specific integrated circuit (Application Specific Integrated Circuit, ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention .

It should be understood that, in various embodiments of the present invention, the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, rather than the embodiments of the present invention. implementation constitutes any limitation.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of the present invention.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided by the present invention, it should be understood that the disclosed systems, devices and methods may be implemented in other manners. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

Claims (10)

1. a positioning method of a pseudo base station, is characterized in that, comprises: Obtain the handover failure signaling of each base station within a certain period of time; Screening the base stations where the number of occurrences of the handover failure signaling exceeds a preset threshold, as the first set of base stations with pseudo base stations around; Select one base station from the first base station set as a positioning source base station, and select one or more base stations whose linear distance from the positioning source base station is less than a first preset distance from the remaining base stations in the first base station set, as a second set of base stations with the same pseudo base station around; determining, according to the second set of base stations, a third set of base stations around which pseudo base stations exist; According to the third set of base stations, the positions of the pseudo base stations are located. 2 . The method for locating a pseudo base station according to claim 1 , wherein the determining, according to the second base station set, a third set of base stations around which pseudo base stations exist, comprising: 2 . Taking the average value of the geographic locations of all base stations in the second set of base stations as the first center point; From the second set of base stations, select a base station whose distance from the first center point is less than a second preset distance as the third set of base stations; Wherein, the second preset distance is smaller than the first preset distance. 3. The method for locating a pseudo base station according to claim 2, wherein the locating the position of the pseudo base station according to the third base station set comprises: The average value of the geographic positions of all base stations in the third base station set is taken as the second center point, and the position of the second center point is the position of the pseudo base station. 4 . The method for locating a pseudo base station according to claim 1 , wherein, before selecting a base station from the first base station set as a positioning source base station, the method further comprises: 5 . From the first base station set, the positioning source base station and the base stations in the third base station set are removed. 5. A positioning device for a pseudo base station, comprising: a signaling acquisition unit, used for acquiring the handover failure signaling of each base station within a certain period of time; a signaling screening unit, configured to screen a base station whose number of occurrences of the handover failure signaling obtained by the signaling obtaining unit exceeds a preset threshold, as a first set of base stations with pseudo base stations around; a first positioning unit, configured to select a base station from the first base station set determined by the signaling screening unit as a positioning source base station, and select a straight line with the positioning source base station from the remaining base stations in the first base station set One or more base stations with a distance less than the first preset distance are used as a second set of base stations with the same pseudo base station around; a second positioning unit, configured to determine, according to the second set of base stations determined by the first positioning unit, a third set of base stations around which pseudo base stations exist; The third positioning unit is configured to locate the position of the pseudo base station according to the third base station set determined by the second positioning unit. 6. The positioning device of the pseudo base station according to claim 5, wherein the second positioning unit is specifically used for: Taking the average value of the geographic locations of all base stations in the second set of base stations as the first center point; From the second set of base stations, select a base station whose distance from the first center point is less than a second preset distance as the third set of base stations; Wherein, the second preset distance is smaller than the first preset distance. 7. The positioning device of the pseudo base station according to claim 6, wherein the third positioning unit is specifically used for: The average value of the geographic positions of all base stations in the third base station set is taken as the second center point, and the position of the second center point is the position of the pseudo base station. 8 . The positioning device for a pseudo base station according to claim 5 , wherein before the first positioning unit, it further comprises: The repeating positioning unit is configured to remove the positioning source base station and the base stations in the third base station set from the first base station set. 9. A computer-readable storage medium storing one or more programs, characterized in that the one or more programs comprise instructions that, when executed by a computer, cause the computer to perform as claimed in claims 1-4 The positioning method of any one of the pseudo base stations. 10. A positioning device for a pseudo base station, comprising: a processor and a memory, the memory is used to store a program, and the processor invokes the program stored in the memory to execute the pseudo base station according to any one of claims 1-4. The positioning method of the base station.

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