KR20200088437A - Pseudo base station positioning method, terminal and computer readable storage medium - Google Patents

Abstract

The present invention provides a pseudo base station positioning method applied to a terminal, wherein the pseudo base station positioning method comprises: whether a network side device is a pseudo base station when a rejection message fed back by the network side device is received based on the current location update request Detecting the; If the network-side device is a pseudo base station, monitoring target cells corresponding to the network-side device to obtain monitoring information; Obtaining location information of the network-side device according to the monitoring information; It includes.

Description

Pseudo base station positioning method, terminal and computer readable storage medium

The present invention relates to the field of wireless communication, but is not limited thereto.

The "pseudo base station" is a fake base station, and the "pseudo base station" device is an illegal wireless communication device that has not been granted network access permission of the communication device and model number approval of the wireless transmission device, and is mainly composed of a host computer and a notebook computer. Since the pseudo base station is disguised as an adjacent cell of the mobile base station and uses high power wireless signal transmission, the mobile phone user can be easily reselected into the cell as long as they are in this area. The pseudo base station can search for mobile phone card information within a certain radius around it, and forcibly transmits messages such as fraud and advertisement promotion to the user's mobile phone, disguised as other people's mobile phone numbers.

Sending messages using pseudo-base stations has become one of the main means of fraud of a new type of telecommunications network, and the damage has attracted the attention of the entire society.

In one aspect, the present invention provides a pseudo base station positioning method applied to a terminal, wherein the pseudo base station positioning method comprises: When a rejection message fed back by a network side device is received based on a current location update request, the network side device Detecting whether it is a pseudo base station; If the network-side device is a pseudo base station, monitoring target cells corresponding to the network-side device to obtain monitoring information; Obtaining location information of the network-side device according to the monitoring information; It includes.

In another aspect, the present invention further provides a terminal, the terminal comprising: a memory, a processor, and a pseudo base station positioning program stored in the memory and executed by the processor, wherein the pseudo base station positioning program is provided to the processor. When executed by, steps of the method according to the text are implemented.

In another aspect, the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores a pseudo base station positioning program, and when the pseudo base station positioning program is executed by a processor, steps of the method according to the text Are implemented.

1 is a schematic structural diagram of a terminal in a hardware operating environment according to an embodiment of the present invention.
2 is a schematic flowchart of a pseudo base station positioning method according to an embodiment of the present invention.
3 is a flowchart of a method for detecting whether a network-side device is a pseudo base station according to an embodiment of the present invention.
4 is a schematic diagram of a functional module of a terminal according to an embodiment of the present invention.
The embodiments will be combined and reference to the drawings will be made to further illustrate the realization, functional features and advantages of the object of the present invention.

It should be understood that the specific embodiments described herein are only used to describe the invention and are not intended to limit the invention.

Currently, the usual method for tracking a pseudo base station is as follows: 1. Public security agencies associate with local operators and radio management departments, monitor nearby abnormal signals to locate the pseudo base station, and then expensive Positioning is performed on the pseudo base station using a professional positioning device, which is very high in human and hardware costs. 2. Based on big data and cloud computing, cloud server collects a large number of user data and analyzes big data. However, the mobility of the pseudo base station is so strong that the method only detects the pseudo base station's law of action, and cannot position the pseudo base station in real time.

Accordingly, the present invention particularly provides a pseudo base station positioning method, a terminal and a computer readable storage medium, which substantially avoids one or more problems caused by limitations and disadvantages of the related art.

Hereinafter, a terminal in a hardware operating environment according to an embodiment of the present invention will be described.

In an embodiment of the present invention, the terminal may be a PC, or a mobile terminal device having a display function such as a smart phone, a tablet computer, or a portable computer.

1 is a schematic structural diagram of a terminal in a hardware operating environment according to an embodiment of the present invention. As shown in FIG. 1, the terminal includes: a processor 1001 (for example, a central processing unit (CPU)), a network interface 1004, a user interface 1003, a memory 1005, and a communication bus 1002. It may include. For example, communication bus 1002 is configured to implement connection communication between these components. The user interface 1003 may include, for example, a display and an input device (eg, a keyboard). In some embodiments, user interface 1003 may also include standard wired interfaces, wireless interfaces, and the like. In some embodiments, network interface 1004 may include a standard wired interface, a wireless interface (eg, WI-FI interface), and the like. The memory 1005 may be a high-speed RAM memory or a non-volatile memory such as a magnetic disk memory. In some embodiments, the memory 1005 may also be a storage device separate from the processor 1001 described above.

In some embodiments, the terminal may further include a camera, a radio frequency (RF) circuit, a sensor, an audio circuit, a WiFi module, and the like. In some embodiments, the sensors may be, for example, light sensors, motion sensors, and other sensors. In some embodiments, the light sensor can include an ambient light sensor and a proximity sensor. The ambient light sensor may adjust the brightness of the display screen according to the brightness of the ambient light, and the proximity sensor may turn off the display screen and/or backlight when the mobile terminal moves home. Gravity acceleration sensor, which is a kind of motion sensor, can detect the magnitude of acceleration in each direction (usually 3 axes), can detect the magnitude and direction of gravity when stationary, and recognizes the attitude of the mobile terminal ( For example, it can be used for horizontal and vertical screen switching, related games, magnetometer posture correction, and vibration recognition related functions (eg, pedometer, percussion). Of course, the mobile terminal may constitute other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, and will not be repeated here.

Those skilled in the art will understand that the terminal structure shown in FIG. 1 is not limited to the terminal, and may include more or fewer components than those illustrated, or may combine specific components or arrange different components. Will be able to.

As shown in FIG. 1, the memory 1005 as a computer storage medium may include an operating system, a network communication module, a user interface module, and a pseudo base station positioning program.

In the terminal shown in Fig. 1, the network interface 1004 may be configured to connect to a background server and perform data communication with the background server; The user interface 1003 is connected to a client (user side) and can be configured to perform data communication with the client; The processor 1001 calls a pseudo base station positioning program stored in the memory 1005, detects whether the network side device is a pseudo base station when a rejection message fed back by the network side device is received based on the current location update request, and ; If the network-side device is a pseudo base station, monitor target cells corresponding to the network-side device to obtain monitoring information; It may be configured to perform an operation of obtaining location information of a network-side device according to monitoring information.

In some embodiments, the processor 1001 calls the pseudo base station positioning program stored in the memory 1005 to obtain the current location information of the terminal, and tracks the trajectory according to the current location information of the terminal and the location information of the network-side device. It may be configured to further perform the generating operation.

In some embodiments, the processor 1001 may be configured to further perform an operation of updating the cell information of the target cell in real time on a display interface of a terminal by calling a pseudo base station positioning program stored in the memory 1005.

In some embodiments, detecting whether the network-side device is a pseudo base station includes: detecting whether the number of times the rejection message is received is greater than a preset threshold; If the number of times is greater than a preset threshold, determining the network-side device as a pseudo base station; It includes.

In some embodiments, after the step of detecting whether the number of times the rejection message is received is greater than a preset threshold value: if the number of times is less than a preset threshold value, whether the request for updating the history location last transmitted by the terminal is accepted Detecting whether or not; Obtaining a first system information triggering a current location update request and acquiring second system information triggering a history location update request, if the history location update request last transmitted by the terminal is accepted; Detecting whether only a difference between a location area code (LAC) or a tracking area code (TAC) exists in the first system information and the second system information; If only a difference between a location area code (LAC) or a tracking area code (TAC) exists in the first system information and the second system information, determining the network-side device as a pseudo base station; It further includes.

In some embodiments, monitoring target cells corresponding to network-side devices to obtain monitoring information includes: obtaining a network standard of the target cells; Adjusting the original network mode of the terminal to the network standard, and performing monitoring on the target cell to obtain monitoring information; It includes. In one embodiment, the identity information of the target cell is obtained, and the network standard of the target cell is obtained according to the identity information.

In some embodiments, after adjusting the terminal's original network mode to the network standard, the method includes: when a monitoring end command is received, restoring the terminal's network mode to the original network mode.

In some embodiments, obtaining location information of a network-side device according to the monitoring information includes: acquiring partial monitoring information corresponding to the preset time period every preset time period; Obtaining a plurality of terminal location information included in the partial monitoring information; Obtaining location information of a network-side device according to a plurality of terminal location information and preset constraints; It includes.

An embodiment of the present invention provides a method for positioning a pseudo base station. 2 is a schematic flowchart of a pseudo base station positioning method according to an embodiment of the present invention.

As illustrated in FIG. 2, in one embodiment, the method for positioning the pseudo base station may include the following steps (S10) to (S30 ).

In step S10, if a rejection message fed back by the network-side device is received based on the current location update request, it is detected whether the network-side device is a pseudo base station.

In step S20, when the network-side device is a pseudo base station, the target cell corresponding to the network-side device is monitored to obtain monitoring information.

In step S30, location information of the network-side device is obtained according to the monitoring information.

Next, the operation principle of the pseudo base station will be briefly introduced.

First, the pseudo base station sets the same mobile country code (MCC) and mobile network code (MNC) as the normal base station, but sets a different LAC/TAC from the normal base station. After receiving the broadcast message from the pseudo base station, the terminal incorrectly recognizes that it has entered the new location area and triggers a location update request. After receiving the location update request, the pseudo base station issues an identification request message, which is a TMSI (TMSI: temporary mobile subscriber identification code) of the terminal, which is a temporary "representative" of IMSI. In order to avoid the more being transmitted, it is assigned to the user by the visitor location register (VLR), TMSI is currently unique to the VLR), IMSI (IMSI: international mobile subscriber identification code, an indication for identifying the mobile user, Unique across the entire network and around the world (of course, illegal manufacturers can make the same SIM card with IMSI), used when network access and TMSI updates fail, and International Mobile Equipment Identity (IMEI) is an international mobile Abbreviation for device ID, an international mobile device identification code, which is an "electronic serial number" consisting of 15 digits, one to one correspondence with each cell phone, and the code is unique in the world. After this is completed, only one serial number is given worldwide, and this number is recorded by the production manufacturer, from production to delivery), and then the location update is returned by returning the location update acceptance message to the terminal. Confirm that it is completed.

Next, the pseudo base station determines whether a message has been transmitted to the user through IMSI. For a user who has not sent a message, the pseudo base station can send a short message of any content and any call number.

Finally, after achieving the purpose, the pseudo base station disconnects from the user using the location update mechanism. In this process, the pseudo base station issues a new LAC/TAC through the system information, triggers the terminal to send a location update request again, and then disconnects the terminal by rejecting the request.

Based on the above-described principle of operation of the pseudo base station, in this embodiment, when a corresponding rejection message fed back by the network side device is received based on the current location update request, it is detected whether the network side device is a pseudo base station. That is, when the terminal receives a system message broadcast by the network-side device, triggers a location update request, and receives a corresponding rejection message fed back by the network-side device based on the current location update request. It is detected whether or not is a pseudo base station.

3 is a schematic flowchart of a method for detecting whether a network-side device is a pseudo base station according to an embodiment of the present invention. In one embodiment, the step of detecting whether the network-side device is a pseudo base station may include steps S101 to S104 below.

In step S101, when a rejection message fed back by the network-side device is received based on the current location update request, cell information of a cell corresponding to the network-side device is obtained.

In step S102, the terminal detects whether the number of times rejected in the cell is greater than a preset threshold, and if so, determines the network-side device as a pseudo base station, otherwise performs the next step. In some embodiments, the preset threshold may be artificially set, for example, set to 5, that is, in a situation in which the number of times this rejection is added, if the number of times the terminal is rejected in the cell is greater than 5 times, immediately The network-side device is determined as a pseudo base station.

In step S103, it is determined whether or not the terminal's last location update request has been accepted, and if accepted, the next step is performed, otherwise it is determined that the network-side device is not a pseudo base station. In this embodiment, if the request to update the current location is rejected, but the request to update the last location is accepted, this situation is consistent with the operation principle of the above-described pseudo base station, and thus it is very likely that the network-side device is a pseudo base station. Consider it and perform the judgment of the next step.

In step S104, it is detected whether there is only a LAC/TAC difference in the system message corresponding to the location update request triggered twice by the terminal, and if so, determines the network-side device as a pseudo base station, otherwise the network It is determined that the side apparatus is not a pseudo base station. In this embodiment, according to the principle of operation of the pseudo base station, the pseudo base station first broadcasts a system message to induce the terminal to access the pseudo base station's working cell. After achieving the purpose, the pseudo base station broadcasts a system message a second time, in order to remove the terminal from the pseudo base station's working cell, i.e. to disconnect the terminal, from the first broadcast message. The first broadcast message has only the difference between LAC/TAC. If the current location update request is rejected, but one location update request is finally accepted, and there is only a difference between LAC/TAC in the system message corresponding to the two location update requests, this situation is completely consistent with the principle of operation of the pseudo base station. Therefore, it is determined that the network-side device is a pseudo base station.

In some embodiments, when it is detected that the network-side device is a pseudo base station, it starts to monitor the pseudo base station, that is, monitors a target cell corresponding to the network-side device to obtain monitoring information.

In an embodiment of the present invention, first, a network standard of a pseudo base station cell (ie, a target cell) is obtained, and then the network mode of the terminal is changed to the network standard. For example, if the network standard of the pseudo base station cell is a GSM cell, the network mode of the terminal is changed to GSM Only, preventing the terminal from reselecting the cell to access a network of another standard and ensuring the monitoring process. In some embodiments, the monitoring information includes time, cell information, terminal location, etc., where the cell information is: ARFCN (Absolute Radio Frequency Channel Number), which is a special radio frequency channel in a GSM wireless system. It is a numbering system used to identify), RSSI (Received Signal Strength Indication, an optional part of the wireless transport layer, used to determine link quality and increase broadcast transmission strength), PCI ( Physical Cell Identifier (CI), Cell Identity (CI), Base Station Identification Code (BSIC), Cell ID (CID), Location Area Code/Tracking Area Code (TAC/LAC), etc. Does not. As shown in Table 1, Table 1 is a schematic table of one embodiment of monitoring information.

time Cell information Terminal location T1 C1 P1 T2 C2 P2 T3 C3 P3 T4 C4 P4 … … … Tn Cn Pn

In some embodiments, after obtaining the monitoring information, location information of the network-side device may be obtained according to the monitoring information. For example, at predetermined times, partial monitoring information corresponding to the time is acquired. For example, every 30 minutes, partial monitoring information corresponding to the 30 minutes is acquired. As shown in Table 2, Table 2 is a schematic table of one embodiment of partial monitoring information.

time Cell information Terminal location T1 C1 P1 T2 C2 P2 T3 C3 P3 … … … T30 C30 P30

In the monitoring process, if the cell information and the terminal position are obtained and recorded for every 5S (the time can be adjusted according to the actual demand), a correspondence relationship between the cell information of the 360 group and the terminal position can be obtained within 30 minutes. Cell information of 360 groups is arranged according to the order of strength and weakness of signal strength (RSSI) in the cell information, and each cell information corresponds to one location point. Here, the higher the cell information, the closer the location of the corresponding terminal to the pseudo base station. Also, all terminal locations are within the signal coverage range of the pseudo base station. Since the signal coverage of the current pseudo base station is generally between 500 meters and 1000 meters, it is necessary to calculate the position of the pseudo base station according to constraint 1 and constraint 2, for example.

Constraints 1: A plurality of location points corresponding to a plurality of terminal location information included in the partial monitoring information belong to a circle having a preset radius value. In the monitoring information, each terminal location information all corresponds to one cell information, and the cell information includes RSSI information, that is, each location point corresponds to one RSSI information, in order of decreasing RSSI from large to small, The plurality of position points are sorted, and a position point of a preset ratio with a higher rank and a position point of a preset ratio with a lower rank are obtained.

Constraint 2: Average distance from the centrifuge to a position point of a preset ratio with a higher rank <average distance from a centrifuge to a position point of a preset ratio with a lower rank.

When the constraint 1 and constraint 2 are satisfied at the same time, the centrifugal is the position of the pseudo base station.

In one embodiment, the location of the pseudo base station can be calculated according to the following two constraints.

Constraints 1: A 90% (the above value can be adjusted according to actual demand) location point is included in a circle with a radius of 800 meters around the pseudo base station (the above value can be adjusted according to actual demand).

Constraints 2: Average distance from the pseudo base station to the top 20% position point <average distance from the pseudo base station to the bottom 20% position point.

In an embodiment of the present invention, after the terminal transmits the location update request to the network-side device, when rejection information fed back by the network-side device is received, it is detected whether the network-side device is a pseudo base station, and the network-side device When is detected as being a pseudo base station, the target cell corresponding to the network-side device is monitored to obtain monitoring information, and then the location of the network-side device is obtained according to the monitoring information. Through the embodiment of the present invention, since there is no need to use an expensive professional location positioning device, and only a terminal is used without additional auxiliary means, a pseudo base station can be found immediately under low labor and hardware costs. Positioning of the location of the pseudo base station can be implemented.

In some embodiments, after step S30, the method may further include: obtaining current location information of the terminal, and generating a tracking trajectory according to the current location information of the terminal and the location information of the network-side device. .

In some embodiments, after obtaining the location information of the network-side device, the current location information of the terminal is obtained, and a tracking trajectory is generated according to the current location information of the terminal and the location information of the network-side device. In some embodiments, after presetting the map software on the terminal and importing the acquired location information of the network-side device into the map software, the map software tracks the trajectory according to the current location information of the terminal and the location information of the network-side device. It generates and displays a tracking trajectory on the screen of the terminal, thereby informing the user of the location of the network-side device.

In some embodiments, after the tracking trajectory is generated, the user may continue to perform steps S20 to S30 in the process of moving along the tracking trajectory. That is, since the pseudo base station can be continuously monitored, the tracking trajectory can be continuously updated according to the new monitoring information.

In an embodiment of the present invention, after obtaining the location information of the pseudo base station, further, it is possible to obtain a tracking trajectory that moves to the pseudo base station according to the user's current location information and the location information of the pseudo base station, and the terminal traverses the trajectory. By displaying, the user moves to the location of the pseudo base station according to the guidance of the tracking trajectory, thereby realizing monitoring, positioning and tracking of the pseudo base station.

In some embodiments, after generating a tracking trajectory, the method may further include updating the cell information of the target cell in real time on the display interface of the terminal.

In some embodiments, the cell information of the target cell displayed on the terminal interface, that is, the cell information of the pseudo base station cell is: ARFCN (Absolute Radio Frequency Channel Number), a special radio frequency channel in a GSM wireless system. It is a numbering system used to identify), RSSI (Received Signal Strength Indication), an optional part of the wireless transport layer, used to determine link quality and increase broadcast transmission strength), PCI ( Physical Cell Identifier (CI), Cell Identity (CI), Base Station Identification Code (BSIC), Cell ID (CID), Location Area Code/Tracking Area Code (TAC/LAC), etc. It is not limited. By displaying and updating the cell information of the target cell in real time on the terminal, the user can determine whether he is getting closer or farther away from the pseudo base station according to the change in the size of the RSSI. For example, as the RSSI gets smaller, it means that the pseudo base station is getting farther away from the terminal, and as the RSSI gets larger, it means that the pseudo base station is getting closer to the terminal. If the RSSI reaches a certain value and no longer changes significantly, it means that the pseudo base station is near the terminal, where the terminal holder can find the pseudo base station according to experience.

In an embodiment of the present invention, by updating the cell information of the target cell in real time on the display interface of the terminal, the user can recognize the relative change of his position and the position of the pseudo base station according to the change of the cell information, pseudo It is advantageous for the search operation of the base station.

In some embodiments, detecting whether the network-side device is a pseudo base station includes: detecting whether the number of times the rejection message is received is greater than a preset threshold; If the number of times is greater than a preset threshold, determining the network-side device as a pseudo base station; It includes.

In some embodiments, the preset threshold may be artificially set, for example, set to 5, that is, in a situation in which the number of times this rejection is added, if the number of times the terminal is rejected in the cell is greater than 5 times, immediately The network-side device is determined as a pseudo base station.

In an embodiment of the present invention, according to the characteristics of the pseudo base station, if the terminal is rejected multiple times on one cell, the network side device corresponding to the cell is directly determined as the pseudo base station, and subsequent monitoring and tracking are performed accordingly. .

In some embodiments, after the step of detecting whether the number of times the rejection message is received is greater than a preset threshold value: if the number of times is less than a preset threshold value, whether the request for updating the history location last transmitted by the terminal is accepted Detecting whether or not; Obtaining a first system information triggering a current location update request, and acquiring second system information triggering a history location update request if the history location update request last transmitted by the terminal is accepted; Detecting whether only a difference between a location area code (LAC) or a tracking area code (TAC) exists in the first system information and the second system information; If only a difference between a location area code (LAC) or a tracking area code (TAC) exists in the first system information and the second system information, determining the network-side device as a pseudo base station; It further includes.

In the embodiment of the present invention, if the request to update the current location is rejected, but the request to update the last location is accepted, this situation is consistent with the operation principle of the above-described pseudo base station, so it is possible that the network-side device is a pseudo base station. I think it's very high, and I do the next step of judgment.

According to the principle of operation of the pseudo base station, the pseudo base station broadcasts a system message for the first time to induce the terminal to access the pseudo base station's working cell. After achieving the purpose, the pseudo base station broadcasts a system message a second time, in order to remove the terminal from the pseudo base station's working cell, i.e. to disconnect the terminal, from the first broadcast message. The first broadcast message has only the difference between LAC/TAC. If the current location update request is rejected, but the last location update request has been accepted, and there is only a difference in location area code (LAC) or tracking area code (TAC) in the system message corresponding to the two location update requests, this The situation is completely in accordance with the principle of operation of the pseudo base station, so that the network-side device is determined as the pseudo base station.

In an embodiment of the present invention, according to the principle of operation of the pseudo base station, a request for a location update currently transmitted by the terminal is rejected, but a request for a history location update last transmitted by the terminal is accepted and a system corresponding to the two location update requests If there is only a difference between a location area code (LAC) or a tracking area code (TAC) in the message, the network-side device corresponding to the cell is determined as a pseudo base station, and subsequent monitoring and tracking are performed accordingly.

In some embodiments, monitoring target cells corresponding to network-side devices to obtain monitoring information includes: obtaining a network standard of the target cells; Adjusting the original network mode of the terminal to the network standard, and performing monitoring on the target cell to obtain monitoring information; It includes. In one embodiment, the identity information of the target cell is obtained, and the network standard of the target cell is obtained according to the identity information.

In an embodiment of the present invention, first, a network standard of a pseudo base station cell (ie, a target cell) is obtained, and then the network mode of the terminal is changed to the network standard. For example, if the network standard of the pseudo base station cell is a GSM cell, the network mode of the terminal is changed to GSM Only, preventing the terminal from reselecting the cell to access a network of another standard and ensuring the monitoring process.

In some embodiments, after adjusting the terminal's original network mode to the network standard, the method further includes: when a monitoring end command is received, restoring the terminal's network mode to the original network mode.

In some embodiments, upon receiving a command to end monitoring, the network mode of the terminal is restored to the original network mode, that is, when there is no need to monitor the pseudo base station cell using the terminal, the network mode of the terminal is restored to the original network mode. Then, cell selection is performed in the original network mode.

In some embodiments, step S30 includes: acquiring partial monitoring information corresponding to the preset time period every preset time period; Obtaining a plurality of terminal location information included in the partial monitoring information; Obtaining location information of a network-side device according to a plurality of terminal location information and preset constraints; It may include.

In some embodiments, after obtaining the monitoring information, location information of the network-side device may be obtained according to the monitoring information. For example, at predetermined times, partial monitoring information corresponding to the time is acquired. For example, every 30 minutes, partial monitoring information corresponding to the 30 minutes is acquired. As shown in Table 3, Table 3 is a schematic table of one embodiment of partial monitoring information.

time Cell information Terminal location T1 C1 P1 T2 C2 P2 T3 C3 P3 ... ... ... T30 C30 P30

In the monitoring process, if the cell information and the terminal position are obtained and recorded for every 5S (the time can be adjusted according to the actual demand), a correspondence relationship between the cell information of the 360 group and the terminal position can be obtained within 30 minutes. Cell information of 360 groups is arranged according to the order of strength and weakness of signal strength (RSSI) in the cell information, and each cell information corresponds to one location point. Here, the higher the cell information, the closer the location of the corresponding terminal to the pseudo base station. Also, all terminal locations are within the signal coverage range of the pseudo base station. Since the signal coverage of the current pseudo base station is generally between 500 meters and 1000 meters, it is necessary to calculate the position of the pseudo base station according to constraint 1 and constraint 2, for example.

Constraints 1: A plurality of location points corresponding to a plurality of terminal location information included in the partial monitoring information belong to a circle having a preset radius value. In the monitoring information, each terminal location information all corresponds to one cell information, and the cell information includes RSSI information, that is, each location point corresponds to one RSSI information, in order of decreasing RSSI from large to small, The position points of the di-number are arranged, and a position point of a preset ratio with a higher rank and a position point of a preset ratio with a lower rank are obtained.

Constraint 2: Average distance from the centrifuge to a position point of a preset ratio with a higher rank <average distance from a centrifuge to a position point of a preset ratio with a lower rank.

When the constraint 1 and constraint 2 are satisfied at the same time, the centrifugal is the position of the pseudo base station.

In one embodiment, the location of the pseudo base station can be calculated according to the following two constraints.

Constraints 1: A 90% (the above value can be adjusted according to actual demand) location point is included in a circle with a radius of 800 meters around the pseudo base station (the above value can be adjusted according to actual demand).

Constraint 2: Average distance from the pseudo base station to the top 20% position point <average distance from the pseudo base station to the bottom 20% position point.

In an embodiment of the present invention, after the terminal transmits the location update request to the network-side device, when rejection information fed back by the network-side device is received, it is detected whether the network-side device is a pseudo base station, and the network-side device When is detected as being a pseudo base station, the target cell corresponding to the network-side device is monitored to obtain monitoring information, and then the location of the network-side device is obtained according to the monitoring information. Through the embodiment of the present invention, since there is no need to use an expensive professional location positioning device, and only a terminal is used without additional auxiliary means, a pseudo base station can be found immediately in a low labor cost and hardware cost condition. The pseudo base station can implement positioning for the location.

An embodiment of the present invention further provides a terminal. 4 is a schematic diagram of a functional module of a terminal according to an embodiment of the present invention.

Referring to FIG. 4, in some embodiments, the terminal: a detection module 10 configured to detect whether the network-side device is a pseudo base station when a rejection message fed back by the network-side device is received based on the current location update request ; A monitoring module 20 configured to monitor the target cell corresponding to the network-side device to obtain monitoring information when the network-side device is a pseudo base station; An acquisition module 30 configured to obtain location information of the network-side device according to the monitoring information; It may include.

In some embodiments, the terminal may further include a generation module configured to acquire current location information of the terminal, and generate a tracking trajectory according to the current location information of the terminal and the location information of the network-side device.

In some embodiments, the terminal may further include an update module configured to update the cell information of the target cell in real time on the display interface of the terminal.

In some embodiments, the detection module 10 includes a first detection unit configured to detect whether the number of times the rejection message is received is greater than a preset threshold value; A first determination unit, configured to determine the network-side device as a pseudo base station if the number of times is greater than a preset threshold value; It may include.

In some embodiments, the detection module 10 may include a second detection unit configured to detect whether a request for updating a history location last transmitted by the terminal is accepted when the number of times is less than a preset threshold value; If the history location update request last transmitted by the terminal is accepted, obtain system information configured to acquire first system information triggering a current location update request and second system information triggering a history location update request unit; A third detection unit configured to detect whether only a difference between a location area code (LAC) or a tracking area code (TAC) exists in the first system information and the second system information; A second determining unit, configured to determine the network-side device as a pseudo base station when only a difference between a location area code (LAC) or a tracking area code (TAC) exists in the first system information and the second system information; It may further include.

In some embodiments, the monitoring module 20 includes a network standard acquiring unit configured to acquire identity information of the target cell, and acquire a network standard of the target cell according to the identity information; A monitoring unit configured to adjust the original network mode of the terminal to the network standard and perform monitoring for the target cell; It may include.

In some embodiments, the monitoring module 20 may further include a restoration unit configured to restore the network mode of the terminal to the original network mode when a monitoring end command is received.

In some embodiments, the acquiring module 30 includes a first acquiring unit configured to acquire partial monitoring information corresponding to the preset time period every preset time period; A second acquiring unit configured to acquire location information of a plurality of terminals included in the partial monitoring information; A third acquiring unit, configured to acquire location information of a network-side device according to location information of a plurality of terminals and preset constraints; It may include.

The specific embodiment of the terminal of the present invention is basically the same as each embodiment of the pseudo base station positioning method, and will not be repeated here.

In addition, an embodiment of the present invention provides a computer-readable storage medium in which a pseudo base station positioning program is stored, wherein the pseudo base station positioning program is implemented by a pseudo base station positioning method according to a text when executed by a processor.

The specific embodiment of the computer-readable storage medium of the present invention is basically the same as each embodiment of the pseudo base station positioning method, and will not be repeated here.

It should be noted that, in the text, the terms "comprising", "containing" or any other variation thereof means non-exclusive inclusion, and thus a process, method, object or system comprising a series of elements is not only those elements, Other elements not explicitly listed, or further include elements specific to these processes, methods, things or systems. In the absence of further limitations, elements defined by the phrase "including one..." do not exclude the case where there are more other identical elements in the process, method, object, or system containing the element.

The sequence numbers of the above-described embodiments of the present invention are for illustration only, and do not represent the superiority of the embodiments.

Through the description of the above embodiments, those skilled in the art may implement the methods of the above embodiments by software and necessary general purpose hardware platforms, and of course, by hardware, but in many cases, the former is a more preferable embodiment. You can clearly understand that. Based on this understanding, the technical solution of the present invention can be implemented essentially in the form of software products, which also contributes to the prior art, and the computer software products are described in the above-described storage medium (eg ROM/RAM, magnetic Disk, optical disk), and includes various commands to execute a method according to each embodiment of the present invention with a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device).

The above is merely an exemplary embodiment of the present invention, and is not limited to the scope of the patent of the present invention, and equivalent configuration or process conversion using the contents of the specification and drawings of the present invention, or other related technologies directly or indirectly Anything applied to the scope is included in the patent protection scope of the present invention.

Claims (10)

In the pseudo base station positioning method applied to the terminal,
If a rejection message fed back by the network-side device is received based on the current location update request, detecting whether the network-side device is a pseudo base station;
If the network-side device is a pseudo base station, monitoring target cells corresponding to the network-side device to obtain monitoring information;
Obtaining location information of the network-side device according to the monitoring information; Pseudo base station positioning method comprising a According to claim 1,
After obtaining the location information of the network-side device according to the monitoring information,
And acquiring the current location information of the terminal and generating a tracking trajectory according to the current location information of the terminal and the location information of the network-side device. According to claim 2,
After the step of generating the tracking trajectory,
And updating the cell information of the target cell in real time on the display interface of the terminal. According to claim 1,
The step of detecting whether the network-side device is a pseudo base station is:
Detecting whether the number of times the rejection message is received is greater than a preset threshold;
If the number of times is greater than a preset threshold, determining the network-side device as a pseudo base station; Pseudo base station positioning method comprising a. According to claim 4,
After the step of detecting whether the number of times the rejection message is received is greater than a preset threshold,
If the number of times is less than a preset threshold value, detecting whether a request for updating a history location last transmitted by the terminal is accepted;
Obtaining a first system information triggering a current location update request, and acquiring second system information triggering a history location update request, if the history location update request last transmitted by the terminal is accepted;
Detecting whether only a difference between a location area code (LAC) or a tracking area code (TAC) exists in the first system information and the second system information;
If only a difference between a location area code (LAC) or a tracking area code (TAC) exists in the first system information and the second system information, determining the network-side device as a pseudo base station; A pseudo base station positioning method further comprising a. According to claim 1,
Steps to obtain monitoring information by monitoring a target cell corresponding to a network-side device are:
Acquiring identity information of the target cell, and acquiring a network standard of the target cell according to the identity information;
Adjusting the original network mode of the terminal to the network standard, and performing monitoring on the target cell to obtain monitoring information; Pseudo base station positioning method comprising a. The method of claim 6,
After adjusting the original network mode of the terminal to the network standard,
And when the monitoring end command is received, restoring the network mode of the terminal to the original network mode. According to claim 1,
After obtaining the location information of the network-side device according to the monitoring information,
Obtaining partial monitoring information corresponding to the preset time period for each preset time period;
Obtaining location information of a plurality of terminals included in the partial monitoring information;
Obtaining location information of a network-side device according to location information of a plurality of terminals and preset constraints; Pseudo base station positioning method comprising a. A memory, a processor, and a pseudo base station positioning program stored in and executed by the processor, wherein the pseudo base station positioning program is executed by the processor, in any one of claims 1 to 8 A terminal characterized in that the steps of the pseudo base station positioning method are implemented. Computer readable, characterized in that the pseudo base station positioning program is stored and when the pseudo base station positioning program is executed by a processor, the steps of the pseudo base station positioning method according to any one of claims 1 to 8 are implemented. Storage media.

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