JP7027675B2 - Pseudo base station positioning method, terminal and computer readable storage medium - Google Patents

Description

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

A "pseudo base station" is a fake base station, and a "pseudo base station" device is an illegal radio communication device that has not obtained network access permission for the telecommunications device and model number approval for the radio transmission device, mainly with the host. Composed of a laptop, pretending to be a cell adjacent to a mobile base station, it employs and transmits high-power wireless signals, making it easy for mobile phone users to reselect this cell as long as they are in this area. Bring. The pseudo base station searches for SIM card information within a certain radius around it, and forcibly sends a shot message such as fraud or advertisement promotion to the user's mobile phone by using another person's mobile phone without permission. do.

Sending short messages using pseudo-base stations has become one of the main means of fraud in new types of telecommunications networks, and its harm has attracted the attention of society as a whole.

On the one hand, the present disclosure is a pseudo base station positioning method applied to a terminal.
When the network side device receives the refusal message fed back to the current position update request, it detects whether or not the network side device is a pseudo base station, and
When the network side device is a pseudo base station, it monitors the target cell corresponding to the network side device and acquires the monitoring information.
Provided is a pseudo base station positioning method including acquisition of position information of a network-side device based on monitoring information.

On the other hand, the present disclosure comprises a memory, a processor, and a pseudo base station positioning program stored in the memory and capable of being executed by the processor, and when the pseudo base station positioning program is executed by the processor. Further provided is a terminal that realizes the steps of the pseudo base station positioning method described in the text.

On the other hand, the present disclosure is a computer-readable storage medium in which a pseudo base station positioning program is stored, and when the pseudo base station positioning program is executed on a processor, the steps of the pseudo base station positioning method described in the text thereof. Further provide a computer-readable storage medium that realizes the above.

It is a structural schematic diagram of the terminal in the hardware operating environment which concerns on this disclosure embodiment. It is a schematic diagram of the flowchart of the pseudo base station positioning method which concerns on this disclosure embodiment. It is a schematic diagram of the flowchart of the method of detecting whether or not the network side apparatus which concerns on this disclosure embodiment is a pseudo base station. It is a schematic diagram of the function module of the terminal which concerns on this disclosure embodiment.

The realization of the objects of the present disclosure, the features and advantages of the functions will be further described with reference to the drawings in connection with the examples.

It should be understood that the specific examples described herein are used only to interpret the present disclosure and not to limit the present disclosure.

Currently, there are two conventional methods for tracking pseudo base stations: First, public security agencies work with local carriers and radio management departments to look for pseudo-base stations by monitoring ambient abnormal signals and use expensive specialized positioning equipment to position the pseudo-base stations. It does, labor costs and hardware costs are high. Second, based on big data and cloud computing, cloud servers collect large amounts of user data and analyze big data. However, because the fluidity of the pseudo base station is too strong, the method can only detect the regularity of the activity of the pseudo base station, and cannot dynamically perform real-time positioning with respect to the position of the pseudo base station.

As such, the present disclosure specifically provides pseudo-base station positioning methods, terminals, and computer-readable storage media that substantially avoid one or more of the problems due to the limitations and shortcomings of related techniques.

Hereinafter, first, the terminal of the hardware operating environment according to the present disclosure embodiment will be described.

The terminal of the present disclosure embodiment may be a PC, or may be a portable terminal device having a display function such as a smartphone, a tablet computer, or a portable computer.

FIG. 1 is a schematic structural diagram of a terminal in the hardware operating environment according to the present disclosure embodiment. As shown in FIG. 1, the terminal may include 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. For example, the communication bus 1002 is configured to provide connection communication between these components. The user interface 1003 may include, for example, a display and an input unit (eg, a keyboard). In some embodiments, the user interface 1003 may include standard wired interfaces, wireless interfaces, and the like. In some embodiments, the network interface 1004 may include standard wired interfaces, wireless interfaces (eg, WI-FI interfaces), 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 be a storage device independent of the processor 1001 described above.

In some embodiments, the terminal may further include a camera, an RF (Radio Frequency) circuit, a sensor, an audio circuit, a WiFi module, and the like. In some embodiments, the sensors are, for example, optical sensors, motion sensors, and other sensors. In some embodiments, the light sensor may include an ambient light sensor and a proximity sensor, the ambient light sensor can adjust the brightness of the display screen according to the brightness of the ambient light, and the proximity sensor is a mobile terminal. When you move closer to your ear, you can turn off the display and / or the backlight. As a type of motion sensor, a gravitational acceleration sensor can detect the magnitude of acceleration in each direction (generally three axes), can detect the magnitude and direction of gravity when stationary, and can move. It can be used for applications that identify the posture of a terminal (for example, vertical / horizontal switching of a screen, related games, attitude calibration of a magnetometer), related functions for vibration identification (for example, pedometer, tap), and the like. Of course, other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor may be arranged on the mobile terminal, but they will not be described repeatedly here.

For those skilled in the art, the terminal structure shown in FIG. 1 is not limited to the terminal, and may include more or less parts than shown, a combination of several parts, or different component arrangements. I understand that it is good.

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 set to connect to a background server to perform data communication with the background server, and the user interface 1003 may be connected to the client side (user side). The processor 1001 may be set to perform data communication with the client side, and may be set to call the pseudo base station positioning program stored in the memory 1005 and execute the following operations.

When the network-side device receives the rejection message fed back in response to the current position update request, it detects whether or not the network-side device is a pseudo base station.
When the network side device is a pseudo base station, the target cell corresponding to the network side device is monitored and the monitoring information is acquired.

Acquires the location information of the network side device based on the monitoring information.

In some embodiments, the processor 1001 may be configured to call the pseudo-base station positioning program stored in memory 1005 and further perform the following operations: The current position information of the terminal is acquired, and the tracking route is generated based on the current position information of the terminal and the position information of the device on the network side.

In some embodiments, the processor 1001 may be configured to call the pseudo-base station positioning program stored in memory 1005 and further perform the following operations: The cell information of the target cell is updated in real time on the display screen of the terminal.

In some embodiments, detecting whether or not the network-side device is a pseudo base station means detecting whether or not the number of times the rejection message is received is greater than a preset threshold value, and the above-mentioned. When the number of times is larger than a preset threshold value, the network-side device is determined to be a pseudo base station.

In some embodiments, after detecting whether the number of times the rejection message has been received is greater than the preset threshold value, if the number of times is less than the preset threshold value, the terminal has previously transmitted a past position update request. Detects whether or not was accepted, and if the terminal has accepted the previous location update request that was previously sent, it acquires the first system information that triggers the current location update request and makes the past location update request. Acquiring the second system information to be triggered, detecting whether or not there is only a difference between the position area code LAC or the tracking area code TAC between the first system information and the second system information, and the first system. The information and the second system information include determining that the network-side device is a pseudo-base station if only the difference in location area code LAC or tracking area code TAC is present.

In some embodiments, monitoring the target cell corresponding to the network-side device and acquiring the monitoring information means acquiring the network standard of the target cell and the original network mode of the terminal. Includes adjusting to network standards, monitoring the target cell, and acquiring monitoring information. In some embodiments, the identity information of the target cell is acquired, and the network standard of the target cell is acquired based on the identity information.

In some embodiments, after adjusting the original network mode of the terminal to the network standard, the pseudo base station positioning method returns the terminal's network mode to the original network mode upon receiving a command to end monitoring. Including returning.

In some embodiments, acquiring the location information of the network-side device based on the monitoring information acquires a part of the monitoring information corresponding to the preset time zone for each preset time zone. To do so, to acquire some terminal position information included in some of the monitoring information, and to acquire the position information of the network side device according to the constraint conditions set in advance based on some terminal position information. Including that.

The present disclosure embodiment provides a pseudo base station positioning method. FIG. 2 is a schematic diagram of a flowchart of the pseudo base station positioning method according to the present disclosure embodiment.

As shown in FIG. 2, in one embodiment, the pseudo base station positioning method may include steps S10 to S30 as follows.

In step S10, when the network-side device receives the refusal message fed back to the current position update request, it detects whether or not 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 and the monitoring information is acquired.

In step S30, the position information of the network side device is acquired based on the monitoring information.

The following is a brief introduction to the operating principle of a pseudo base station.

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. When the terminal receives the broadcast message of the pseudo base station, it mistakenly thinks that it has entered the new location area, and the location update request is triggered. When the pseudo-base station receives the location update request, it sends an identification request message to the terminal's TMSI (TMSI is the temporary mobile subscriber identification code, the temporary "representative" of the IMSI, and the IMSI's. For safety reasons, to avoid transferring the IMSI over the air interface as much as possible, it was assigned to the user by the visitor position register VLR and is a unic in the current VLR), IMSI (IMSI is an international mobile user). It is an identification code, a flag to identify mobile users, is unic all over the network and all over the world (of course, illegal manufacturers can also make SIM cards with the same IMSI) and generally. Is used in the event of network access and TMSI update failure), IMEI (IMEI (International Mobile Equipment Identity) is an abbreviation for International Mobile Device Identity Code, which is an "electronic serial number" consisting of 15 digits. There is a one-to-one correspondence with each mobile phone, and the code is unique worldwide, and when each mobile phone is assembled, it is given one unique number worldwide, and this number is from production. By the time of delivery, the information such as (recorded in the manufacturer) is acquired, and the location update acceptance message is returned to the terminal to confirm that the location update was successful.

Next, the pseudo base station determines whether or not the shot message has been transmitted to the user by the IMSI. The pseudo base station can send a short message of any content and any caller ID to a user who has never sent a short message.

Finally, after achieving its purpose, the pseudo-base station uses the position update mechanism to disconnect from the user. In this process, the pseudo base station triggers the terminal to retransmit the location update request by sending a new LAC / TAC in a system message, and then the pseudo base station rejects the request and the terminal. Disconnect from.

Based on the above-mentioned operating principle of the pseudo base station, in this embodiment, when the corresponding refusal message based on the current position update request fed back by the network side device is received, whether or not the network side device is a pseudo base station. Is detected. That is, when the terminal receives the system message broadcast by the network-side device, the location update request is triggered, and the corresponding rejection message based on the current location update request fed back by the network-side device is received, the network-side device receives the system message. Detects whether or not is a pseudo base station.

FIG. 3 is a schematic diagram of a flowchart of a method for detecting whether or not the network-side device according to the present disclosure embodiment is a pseudo base station. In one embodiment, detecting whether or not the network-side device is a pseudo base station may include steps S101 to S104 as follows.

In step S101, when the network side device receives the corresponding rejection message based on the current position update request fed back, the cell information of the cell corresponding to the network side device is acquired.

In step S102, the terminal detects whether or not the number of times rejected in the cell is more than the preset threshold value, and if it is more than the number of times rejected in the cell, it is determined that the network side device is a pseudo base station, and if not, the next Take steps. In some embodiments, the preset threshold may be set manually, eg, set to 5, i.e., plus the number of times rejected this time, the number of times the terminal is rejected in the cell is 5. If it is more than the number of times, it is directly determined that the network side device is a pseudo base station.

In step S103, it is detected whether or not the previous position update request of the terminal is accepted, and if it is accepted, the next step is performed, and if not, it is determined that the network side device is not a pseudo base station. In this embodiment, the situation in which the current position update request is rejected and the previous position update request is accepted matches the above-mentioned operating principle of the pseudo base station, so that the network side device can be a pseudo base station. Recognize that it is highly probable and make a decision on the next step.

In step S104, the system message corresponding to the position update request triggered twice of the terminal detects whether or not only the difference in LAC / TAC exists, and if only the difference in LAC / TAC exists, the network side device. Is determined to be a pseudo base station, otherwise it is determined that the network-side device is not a pseudo base station. In this embodiment, according to the operating principle of the pseudo base station, the pseudo base station first broadcasts the system message in order to guide the terminal to connect to the operating cell of the pseudo base station. The station broadcasts the second system message after achieving its purpose in order to remove the terminal from the operating cell of the pseudo-base station (ie, disconnect from the terminal), and the first broadcast. The only difference between the message and the second broadcast message is LAC / TAC. If the current location update request is rejected, the previous location update request is accepted, and the system message corresponding to the two location update requests has only a LAC / TAC difference, the operating principle of the pseudo base station is complete. Therefore, it is directly determined that the network-side device is a pseudo base station.

In some embodiments, when it detects that the network-side device is a pseudo-base station, it starts monitoring the pseudo-base station, that is, monitors the target cell corresponding to the network-side device and acquires monitoring information. do.

In the present disclosure embodiment, after acquiring the network standard of the pseudo base station cell (that is, the target cell), 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, change the network mode of the terminal to GSM Only, thereby avoiding the terminal from connecting to the network of another standard by reselecting the cell and monitoring. Guarantee the execution of the process. In some embodiments, the monitoring information includes time, cell information, terminal location, etc., and the cell information is ARFCN (Absolute Radio Frequency Channel Number, ARFCN) specific radio in the GSM radio system. RSSI (Received Signal Strength Information) Receive signal strength indication is an optional part of the radio transmission layer and is used to determine whether to increase link quality and broadcast transmission strength. (Used), PCI (Physical Cell Identity), CI (Cell Identification Cell Identity), BSIC (Base Station Identification Code), CID (Cell Number, CELL IDENTITY), TAC / LAC (Tracking Area Code / Position area code), etc., but not limited to it. As shown in Table 1, Table 1 is a schematic table of one embodiment of the monitoring information.

In some embodiments, when the monitoring information is acquired, the location information of the network side device can be acquired based on the monitoring information. For example, for each preset time zone, a part of monitoring information corresponding to the time zone is acquired. For example, every 30 minutes, a part of the monitoring information corresponding to the 30 minutes is acquired. As shown in Table 2, Table 2 is a schematic table of one embodiment of some monitoring information.

In the monitoring process, if the cell information and the terminal position are acquired and recorded once every 5S (the time may be adjusted according to the actual need), the cell information and 360 sets of cell information can be obtained within 30 minutes. The correspondence with the terminal position can be obtained. 360 sets of cell information are rearranged in descending order of signal strength RSSI in the cell information, and each cell information corresponds to one position point. As for cell information, the higher the ranking, the closer the distance from the corresponding terminal position to the pseudo base station. And all terminal positions are within the signal coverage range of the pseudo base station. Since the signal coverage range of the current pseudo base station is generally between 500 m and 1000 m, it is necessary to calculate the position of the pseudo base station based on, for example, constraint 1 and constraint 2.

In constraint condition 1, some position points corresponding to some terminal position information included in some monitoring information fall into a circle whose radius is a preset radius value. In the monitoring information, each terminal position information corresponds to one cell information, and the cell information includes RSSI information, that is, RSSI information corresponding to each position point. The points are rearranged, the position points of the preset ratio are acquired from the upper rank of the ranking, and the position points of the preset ratio are acquired from the lower rank of the ranking.

In constraint condition 2, the average distance from the center of the circle to the position point of the preset ratio higher in the ranking <the average distance from the center of the circle to the position point of the preset ratio lower in the ranking.

When the above-mentioned constraint condition 1 and constraint condition 2 are satisfied at the same time, the center of the circle is the position of the pseudo base station.

In one embodiment, the location of the pseudo base station may be calculated based on the following two constraints.
Under constraint 1, 90% (the value may be adjusted according to the actual need) position point has a radius of 800 meters around the pseudo base station (the value may be adjusted according to the actual need). You may enter within the circle.

Under constraint condition 2, the average distance from the pseudo base station to the position point of the upper 20% of the ranking <the average distance from the pseudo base station to the position point of the lower 20% of the ranking.

In the present disclosure embodiment, when the terminal sends the location update request to the network side device and then receives the refusal information fed back by the network side device, it detects whether or not the network side device is a pseudo base station.
When it is detected that the network side device is a pseudo base station, the target cell corresponding to the network side device is monitored, and the monitoring information is acquired.
Then, the position of the network side device is acquired based on the monitoring information. According to the present disclosure embodiment, a pseudo base station is provided on the premise of low labor cost and low hardware cost without using expensive specialized positioning equipment, using only a terminal, and requiring no additional auxiliary means. It can be found and the positioning of a pseudo base station can be realized.

In some embodiments, after step S30, the pseudo-base station positioning method acquires current location information and generates a tracking route based on the current location information of the terminal and the location information of the network side device. Further may be included.

In some embodiments, after acquiring the location information of the network-side device, the current location information of the terminal is acquired, and a tracking route is generated based on the current location information of the terminal and the location information of the network-side device. In some embodiments, the map software is pre-arranged in the terminal, the acquired location information of the network side device is taken into the map software, and the map software is used as the current position information of the terminal and the position information of the network side device. It is used to generate a tracking route based on it, display the tracking route on the terminal screen, and guide the user to the location of the network side device.

In some embodiments, after generating the tracking route, steps S20-S30 described above may be continued in the process of the user moving along the tracking route, i.e., continuing to monitor the pseudo base station. Often, it keeps updating tracking routes based on new monitoring information.

In the present disclosure embodiment, after acquiring the position information of the pseudo base station, further, based on the current position information of the user and the position information of the pseudo base station, a tracking route to the pseudo base station is acquired and the terminal is used. By displaying the route, the user can go to the position of the pseudo base station according to the guidance of the tracking route, and the monitoring, positioning and tracking of the pseudo base station are realized.

In some embodiments, the pseudo-base station positioning method may further include updating the cell information of the target cell in real time on the display screen of the terminal after generating the tracking route.

In some embodiments, the cell information of the target cell displayed on the terminal screen, that is, the cell information of the pseudo base station cell, is ARFCN (Absolute Radio Frequency Channel Number, ARFCN) in a GSM radio system. RSSI (Received Signal Strength Information) Receive signal strength indication is an optional part of the radio transmission layer and whether to increase link quality and broadcast transmission strength. (Used for determination of), PCI (Physical Cell Frequency, that is, physical cell identification), CI (cell identification Cell Identity), BSIC (base station identification code), CID (cell number, CELL IDENTITY), TAC / LAC (tracking). Area code / location area code), etc., but not limited to it. It is used to display cell information of the target cell on the terminal, update it in real time, and determine whether the user and the pseudo base station are getting closer or closer based on the change in the size of RSSI. .. For example, if RSSI is getting smaller, the pseudo base station is getting farther from the terminal, and if RSSI is getting bigger, the pseudo base station is getting closer to the terminal, and RSSI is a certain value. If it is higher and does not change significantly, the pseudo base station is near the terminal, in which case the owner of the terminal can search for the pseudo base station based on experience.

In the present disclosure embodiment, the cell information of the target cell is updated in real time on the display screen of the terminal, and the user knows the relative change between his / her own position and the position of the pseudo base station based on the change in the cell information. It is advantageous to search for a pseudo base station.

In some embodiments, detecting whether or not the network-side device is a pseudo base station is to detect whether or not the number of times the refusal message has been received is greater than a preset threshold value, and to detect whether or not the number of times has been received. When is greater than a preset threshold value, the network-side device is determined to be a pseudo base station.

In some embodiments, the preset threshold may be set manually, eg, set to 5, i.e., plus the number of times rejected this time, the number of times the terminal is rejected in the cell is 5. If it is more than the number of times, it is directly determined that the network side device is a pseudo base station.

In the present disclosure embodiment, when the terminal is rejected multiple times in one cell due to the characteristics of the pseudo base station, the network side device corresponding to the cell is directly determined to be the pseudo base station, and then monitoring and tracking are performed. conduct.

In some embodiments, after detecting whether the number of times the refusal message has been received is greater than a preset threshold, the pseudo-base station positioning method is such that if the number of times is less than the preset threshold, the terminal. Detects whether or not the past location update request sent last time was accepted, and if the terminal accepts the past location update request sent last time, acquires the first system information that triggers the current location update request. Then, the acquisition of the second system information that triggers the past position update request, and whether or not the first system information and the second system information differ only in the position area code LAC or the tracking area code TAC. If there is only a difference between the position area code LAC or the tracking area code TAC between the first system information and the second system information, it is determined that the network side device is a pseudo base station. Further included.

In the present disclosure embodiment, the situation in which the current position update request is rejected and the previous position update request is accepted conforms to the above-mentioned operating principle of the pseudo base station, so that the network side device is a pseudo base station. Recognize the possibility and make the next step decision.

According to the operating principle of a pseudo-base station, the pseudo-base station first broadcasts a system message in order to guide the terminal to connect to the operating cell of the pseudo-base station, which is the purpose of the pseudo-base station. The reason for broadcasting the second system message after achieving the above is to remove the terminal from the operating cell of the pseudo base station (that is, to disconnect from the terminal), and the first broadcast message and the second broadcast message. Only the difference between LAC / TAC exists in the broadcast message. The current location update request is rejected, the previous location update request is accepted, and the system message corresponding to the two location update requests is completely if there is only a difference in location area code LAC or tracking area code TAC. Since it matches the operating principle of the pseudo base station, it is directly determined that the network side device is a pseudo base station.

In the present disclosure embodiment, according to the operating principle of the pseudo base station, the position update request currently transmitted by the terminal is rejected, the past position update request transmitted by the terminal last time is accepted, and the position update request is supported twice. If there is only a difference in the position area code LAC or the tracking area code TAC, the system message is directly determined that the network side device corresponding to the cell is a pseudo base station, and then monitoring and tracking are performed.

In some embodiments, monitoring the target cell corresponding to the network-side device and acquiring the monitoring information means acquiring the network standard of the target cell and the original network mode of the terminal. Includes adjusting to network standards, monitoring the target cell, and acquiring monitoring information. In some embodiments, the identity information of the target cell is acquired, and the network standard of the target cell is acquired based on the identity information.

In the present disclosure embodiment, after acquiring the network standard of the pseudo base station cell (that is, the target cell), 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, change the network mode of the terminal to GSM Only, thereby avoiding the terminal from connecting to the network of another standard by reselecting the cell and monitoring. Guarantee the execution of the process.

In some embodiments, after adjusting the terminal's original network mode to the network standard, the pseudo-base station positioning method returns the terminal's network mode to the original network mode upon receiving a command to end monitoring. That further includes.

In some embodiments, when a command to end monitoring is received, the terminal's network mode is returned to its original network mode, i.e., if the terminal does not need to be used to monitor the cells of the pseudo base station, the terminal's network. Return the mode to the original network mode and select the cell in the original network mode.

In some embodiments, step S30 acquires a part of the monitoring information corresponding to the preset time zone for each preset time zone, and some of the monitoring information included in the part of the monitoring information. It may include acquiring the terminal position information of the above, and acquiring the position information of the network-side device according to a preset constraint condition based on some terminal position information.

In some embodiments, when the monitoring information is acquired, the location information of the network side device can be acquired based on the monitoring information. For example, for each preset time zone, a part of monitoring information corresponding to the time zone is acquired. For example, every 30 minutes, a part of the monitoring information corresponding to the 30 minutes is acquired. As shown in Table 3, Table 3 is a schematic table of one embodiment of some monitoring information.

In the monitoring process, if the cell information and the terminal position are acquired and recorded once every 5S (the time may be adjusted according to the actual need), the cell information and 360 sets of cell information can be obtained within 30 minutes. The correspondence with the terminal position can be obtained. 360 sets of cell information are rearranged in descending order of signal strength RSSI in the cell information, and each cell information corresponds to one position point. As for cell information, the higher the ranking, the closer the distance from the corresponding terminal position to the pseudo base station. And all terminal positions are within the signal coverage range of the pseudo base station. Since the signal coverage range of the current pseudo base station is generally between 500 m and 1000 m, it is necessary to calculate the position of the pseudo base station based on, for example, constraint 1 and constraint 2.

In constraint condition 1, some position points corresponding to some terminal position information included in some monitoring information fall into a circle whose radius is a preset radius value. In the monitoring information, each terminal position information corresponds to one cell information, and the cell information includes RSSI information, that is, RSSI information corresponding to each position point. The points are rearranged, the position points of the preset ratio are acquired from the upper rank of the ranking, and the position points of the preset ratio are acquired from the lower rank of the ranking.

In constraint condition 2, the average distance from the center of the circle to the position point of the preset ratio higher in the ranking <the average distance from the center of the circle to the position point of the preset ratio lower in the ranking.

When the above-mentioned constraint condition 1 and constraint condition 2 are satisfied at the same time, the center of the circle is the position of the pseudo base station.

In one embodiment, the location of the pseudo base station may be calculated based on the following two constraints.
Under constraint 1, 90% (the value may be adjusted according to the actual need) position point has a radius of 800 meters around the pseudo base station (the value may be adjusted according to the actual need). You may enter within the circle.

Under constraint condition 2, the average distance from the pseudo base station to the position point of the upper 20% of the ranking <the average distance from the pseudo base station to the position point of the lower 20% of the ranking.

In the present disclosure embodiment, when the terminal sends the location update request to the network side device and then receives the refusal information fed back by the network side device, it detects whether or not the network side device is a pseudo base station.
When it is detected that the network side device is a pseudo base station, the target cell corresponding to the network side device is monitored, and the monitoring information is acquired.
Then, the position of the network side device is acquired based on the monitoring information. According to the present disclosure embodiment, a pseudo base station is provided on the premise of low labor cost and low hardware cost without using expensive specialized positioning equipment, using only a terminal, and requiring no additional auxiliary means. It can be found and the positioning of a pseudo base station can be realized.

The present disclosure embodiment further provides a terminal. FIG. 4 is a schematic diagram of the functional module of the terminal according to the present disclosure embodiment.

As shown in FIG. 4, in some embodiments, the terminal is
When the network-side device receives the rejection message fed back in response to the current position update request, the detection module 10 is set to detect whether the network-side device is a pseudo base station, and the detection module 10.
When the network side device is a pseudo base station, the monitoring module 20 set to monitor the target cell corresponding to the network side device and acquire the monitoring information, and
An acquisition module 30 set to acquire the position information of the network-side device based on the monitoring information may be provided.

In some embodiments, the terminal further comprises a generation module, which is configured to acquire the current location information of the terminal and generate a tracking route based on the current location information of the terminal and the location information of the network side device. You may.

In some embodiments, the terminal may further include an update module, which is set to update the cell information of the target cell in real time on the display screen of the terminal.

In some embodiments, the detection module 10 has a first detection unit set to detect whether or not the number of times the rejection message has been received is greater than a preset threshold value, and a threshold value set to the number of times. If there are more, the network-side device may include a first determination unit that is set to determine that it is a pseudo base station.

In some embodiments, the detection module 10 is configured to detect whether or not the previous position update request previously transmitted by the terminal has been accepted if the number of times is less than a preset threshold. If the unit and the terminal received the past location update request previously transmitted, the first system information that triggers the current location update request is acquired, and the second system information that triggers the past location update request is acquired. The system information acquisition unit set so as to, and the first system information and the second system information are set to detect whether or not there is only a difference between the position area code LAC or the tracking area code TAC. If the detection unit and the first system information and the second system information differ only in the position area code LAC or the tracking area code TAC, the network side device is set to determine that it is a pseudo base station. A second determination unit may be further provided.

In some embodiments, the monitoring module 20 acquires the identity information of the target cell and is set to acquire the network standard of the target cell based on the identity information. The network mode of the device may be adjusted to the network standard, and a monitoring unit configured to monitor the target cell and acquire monitoring information may be further provided.

In some embodiments, the monitoring module 20 may further include a return unit, which is set to return the terminal's network mode to its original network mode upon receiving a command to end monitoring.

In some embodiments, the acquisition module 30 includes a first acquisition unit that is set to acquire a part of monitoring information corresponding to the preset time zone for each preset time zone, and the above-mentioned one. Based on the second acquisition unit set to acquire some terminal position information included in the monitoring information of the unit and some terminal position information, the position information of the network side device is obtained according to the preset constraint conditions. It may further include a third acquisition unit, which is set to acquire.

The specific embodiment of the terminal of the present disclosure is basically the same as each embodiment of the pseudo base station positioning method described above, and the description thereof will be omitted here.

Further, the present disclosure embodiment is a computer-readable storage medium in which a pseudo base station positioning program is stored, and when the pseudo base station positioning program is executed by a processor, the pseudo base station positioning method described in the text thereof. Further provide a computer-readable storage medium that realizes the steps.

Specific examples of the computer-readable storage medium of the present disclosure are basically the same as those of each embodiment of the pseudo base station positioning method described above, and description thereof will be omitted here.

It should be noted that in the text, the terms "preparing", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that any process, method, article or system comprising a set of elements shall be used. Not only those elements, but also other elements not explicitly listed, or specific elements of this process, method, article or system. Without more restrictions, an element limited to the sentence "contains one ..." does not preclude the existence of the same other element in the process, method, article or system containing that element.

The above-mentioned numbers of the disclosed examples are for illustration purposes only and do not represent the superiority or inferiority of the examples.

According to the description of the embodiment, those skilled in the art can realize the method of the above embodiment in the form of software and a general hardware platform required, and of course, by hardware alone, but in many cases the former is more. It can be clearly understood that it is a preferred embodiment. Based on this understanding, the proposed technology of the present disclosure can be embodied in the form of a software product in nature or in parts that can contribute to the prior art, and the computer software product is one storage medium as described above (eg, ROM / RAM, etc.). Each embodiment of the present disclosure is performed on a single terminal device (which may be a mobile phone, computer, server, air conditioner, network device, etc.) that is stored on a porcelain disk, optical disk) and contains several commands. Let me.

The above is merely an exemplary embodiment of the present disclosure, and does not limit the scope of the patents of the present disclosure. , Or directly or indirectly, in any other related art area, are included in the claims of the present disclosure for the same reason.

Claims (9)

It is a pseudo base station positioning method applied to terminals.
When the network side device receives the refusal message fed back to the current position update request, it detects whether or not the network side device is a pseudo base station, and
When the network side device is a pseudo base station, it monitors the target cell corresponding to the network side device and acquires the monitoring information.
Including acquiring the location information of the network side device based on the monitoring information,
Acquiring the location information of the network side device based on the monitoring information is
Acquiring a part of the monitoring information corresponding to the preset time zone for each preset time zone, and
Acquiring some terminal position information included in the part of the monitoring information, each terminal position information corresponds to one cell information, and the cell information includes RSSI information.
The position points corresponding to some of the terminal position information are rearranged in order from the one with the largest RSSI to the one with the smallest RSSI. And to get
Some position points corresponding to some of the terminal position information are within a circle whose radius is a preset radius value, and a preset ratio from the center of the circle to the top of the ranking. The average distance to the position point of is smaller than the average distance from the center of the circle to the position point of the preset ratio lower than the ranking, and the center of the circle is the position of the device on the network side. including,
Pseudo base station positioning method. After acquiring the position information of the network side device based on the monitoring information, the pseudo base station positioning method is performed.
The pseudo base station positioning method according to claim 1, further comprising acquiring the current position information of the terminal and generating a tracking route based on the current position information of the terminal and the position information of the network side device. After generating the tracking route, the pseudo base station positioning method is
The pseudo base station positioning method according to claim 2, further comprising updating the cell information of the target cell in real time on the display screen of the terminal. Detecting whether or not the network-side device is a pseudo base station is
Detecting whether or not the number of times the rejection message is received is greater than the preset threshold value, and
The pseudo base station positioning method according to claim 1, wherein when the number of times is larger than a preset threshold value, it is determined that the network side device is a pseudo base station. After detecting whether or not the number of times the rejection message is received is greater than the preset threshold value, the pseudo base station positioning method determines.
When the number of times is smaller than the preset threshold value, it is detected whether or not the past position update request transmitted by the terminal last time is accepted.
When the past location update request transmitted last time by the terminal is accepted, the first system information that triggers the current location update request is acquired, and the second system information that triggers the past location update request is acquired.
The first system information and the second system information detect whether or not there is only a difference between the position area code LAC or the tracking area code TAC, and
The first system information and the second system information further include determining that the network side device is a pseudo base station when only the difference between the position area code LAC or the tracking area code TAC exists. 4. The pseudo base station positioning method according to 4. It is not possible to monitor the target cell corresponding to the network side device and acquire the monitoring information.
Acquiring the identity information of the target cell and acquiring the network standard of the target cell based on the identity information,
The pseudo base station positioning method according to claim 1, wherein the original network mode of the terminal is adjusted to the network standard, the target cell is monitored, and monitoring information is acquired. After adjusting the original network mode of the terminal to the network standard, the pseudo base station positioning method is
The pseudo base station positioning method according to claim 6, wherein when a command to end monitoring is received, the network mode of the terminal is returned to the original network mode. A 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 executed by the processor, claim 1. A terminal that realizes the step of the pseudo base station positioning method according to any one of claims 7 . The pseudo base station according to any one of claims 1 to 7 , when the pseudo base station positioning program is executed on the processor in a computer-readable storage medium in which the pseudo base station positioning program is stored. A computer-readable storage medium that implements the steps of a positioning method.

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