KR102284297B1 - 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 is: When a rejection message fed back by a network-side device is received based on a current location update request, whether the network-side device is a pseudo base station detecting; when the network-side device is a pseudo base station, monitoring a target cell corresponding to the network-side device to obtain monitoring information; obtaining location information of a network-side device according to the monitoring information; includes

Description

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

The present invention relates to, but 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 wireless communication device that has not received the network access permission of the communication device and the model number approval of the wireless transmitting device, and is mainly composed of a host computer and a laptop computer. Since the pseudo-base station disguises itself as a neighboring cell of the mobile base station and uses high-power radio signal transmission, the mobile phone user can easily reselect to that cell as long as they are in this area. Based on this, the pseudo base station can search for mobile phone card information within a certain radius, and arbitrarily disguise other people's mobile phone numbers to forcibly send messages such as fraudulent and advertising promotions to the user's mobile phone.

Using pseudo-base stations to send messages has become one of the main means of a new type of telecommunication network fraud, the damage of which is attracting 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 includes: 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; when the network-side device is a pseudo base station, monitoring a target cell corresponding to the network-side device to obtain monitoring information; obtaining location information of a network-side device according to the monitoring information; 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 the text, the 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, the method steps 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;
Combining the embodiments and referring to the drawings, the realization of the object of the present invention, functional features and advantages are further described.

It should be understood that the specific examples described herein are used to illustrate the present invention, and are not intended to limit the present invention.

At present, the usual method for tracking a pseudo base station is as follows: 1. Public security agencies cooperate with local operators and radio management departments, monitor surrounding abnormal signals to find pseudo base stations, and then Positioning is performed on the pseudo base station by using a professional positioning device, and the human cost and hardware cost are very high. 2. Based on big data and cloud computing, the cloud server collects a large number of user data for big data analysis. However, the mobility of the pseudo base station is so strong that the method only detects the activity law of the pseudo base station, and cannot position the location of the pseudo base station in real time.

Accordingly, the present invention provides, inter alia, a pseudo-base station positioning method, a terminal and a computer-readable storage medium, which substantially avoid one or more problems caused by the 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 may be 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 (eg, a central processing unit (CPU)), a network interface 1004 , a user interface 1003 , a memory 1005 and a communication bus 1002 . may include. For example, the 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 a standard wired interface, a wireless interface, and the like. In some embodiments, the network interface 1004 may include a standard wired interface, a wireless interface (eg, a 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 sensor may be, for example, a light sensor, a motion sensor, and other sensors. In some embodiments, the light sensor may 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 the backlight when the mobile terminal moves home. Gravity acceleration sensor, a type of motion sensor, can detect the magnitude of acceleration in each direction (generally 3 axes), and can detect the magnitude and direction of gravity when it is in a stationary state, and is an application ( For example, it can be used for horizontal and vertical screen switching, related games, magnetometer posture correction), vibration recognition related functions (eg pedometer, percussion instrument), and the like. Of course, the mobile terminal may configure other sensors such as gyroscopes, barometers, hygrometers, thermometers and infrared sensors, which will not be repeated herein.

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 shown, combine specific components, or arrange different components. will be able

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 the background server and perform data communication with the background server; The user interface 1003 may be configured to connect to a client (user-side) and perform data communication with the client; The processor 1001 calls the pseudo base station positioning program stored in the memory 1005, and upon receiving a rejection message fed back by the network-side device based on the current location update request, detects whether the network-side device is a pseudo base station, and ; when the network-side device is a pseudo base station, monitoring a target cell corresponding to the network-side device to obtain monitoring information; It may be configured to perform an operation of obtaining location information of the network-side device according to the 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 track 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 operation of generating.

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

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 value; determining the network-side device as a pseudo base station if the number of times is greater than a preset threshold; includes

In some embodiments, after detecting whether the number of times of receiving the rejection message 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 sent by the terminal is accepted detecting whether or not; obtaining first system information for triggering a current location update request and second system information for triggering a historical location update request when the historical 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; determining the network-side device as a pseudo base station if there is only a difference between a location area code (LAC) or a tracking area code (TAC) in the first system information and the second system information; further includes

In some embodiments, the step of monitoring the target cell corresponding to the network-side device to obtain monitoring information includes: obtaining a network standard of the target cell; adjusting the original network mode of the terminal to the network standard, performing monitoring on the target cell, and obtaining monitoring information; 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 original network mode of the terminal to the network standard, the method includes: when a monitoring end command is received, restoring the network mode of the terminal to the original network mode.

In some embodiments, the obtaining of the location information of the network-side device according to the monitoring information includes: obtaining partial monitoring information corresponding to the preset time period for each preset time period; acquiring location information of a plurality of terminals included in the partial monitoring information; acquiring location information of a network-side device according to a plurality of terminal location information and preset constraint conditions; includes

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

As shown in Figure 2, in one embodiment, the pseudo base station positioning method 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, monitoring information is obtained by monitoring a target cell corresponding to the network-side device.

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

Next, the operating 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 different LAC/TAC from the normal base station. After receiving the broadcast message from the pseudo base station, the terminal erroneously recognizes that it has entered a new location area, and triggers a location update request. After receiving the location update request, the pseudo base station issues an identification request message, so that the terminal's TMSI (TMSI: Temporary Mobile Subscriber Identification Code, which is a temporary "representative" of the IMSI), to avoid being transmitted, those assigned to users by the Visitor Location Register (VLR), TMSI is currently unique in the VLR), IMSI (IMSI: International Mobile Subscriber Identification Code, an indication for identifying mobile users; Unique across the entire network and worldwide (of course illegal manufacturers can make the same SIM card with IMSI), used in case network access and TMSI updates fail), IMEI (International Mobile Equipment Identity) Abbreviation for Device ID, International Mobile Device Identification Code, which is a 15-digit "Electronic Serial Number" that corresponds to each mobile phone one-to-one, and is unique in the world. Each mobile phone is assembled After this is completed, a globally unique serial number is assigned, and this number is recorded by the production manufacturer from production to delivery), etc., and returns a location update acceptance message to the terminal, Make sure it's done.

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

Finally, after the pseudo-base station achieves its purpose, it uses the location update mechanism to disconnect from the user. In this process, the pseudo base station issues a new LAC/TAC through system information, triggers the terminal to re-transmit a location update request, and then disconnects from the terminal by rejecting the request.

Based on the operation principle of the above-described 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 the system message broadcast by the network-side device, it triggers a location update request, and when a corresponding rejection message fed back by the network-side device is received based on the current location update request, the corresponding network-side device 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 an embodiment, the step of detecting whether the network-side device is a pseudo base station may include the following steps S101 to S104.

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 acquired.

In step S102, the terminal detects whether the number of rejections in the cell is greater than a preset threshold value, and if it is greater, determines the network-side device as a pseudo base station, otherwise the next step is performed. 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 rejections is added this time, if the number of rejections in the cell is greater than 5, the terminal immediately The network-side device is determined as a pseudo base station.

In step S103, it is detected whether the last location update request made by the terminal is 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, when the current location update request is rejected, but the last location update request is accepted, this situation is consistent with the operation principle of the above-described pseudo base station, so that the network-side device is highly likely to be a pseudo base station. considered, and the next stage of judgment is carried out.

In step S104, it is detected whether there is only the LAC/TAC difference in the system message corresponding to the location update request triggered twice by the terminal, and if so, the network-side device is determined as a pseudo base station, otherwise the network It is determined that the 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 broadcasts a system message for the first time to induce the terminal to access the working cell of the pseudo base station. After the pseudo base station achieves its purpose, it broadcasts a system message a second time, to remove the terminal from the working cell of the pseudo base station, i.e. to disconnect from the terminal, the first broadcast message and two In the second broadcast message, only the difference between LAC/TAC exists. If the current location update request is rejected, but the last location update request is accepted, and there is only LAC/TAC difference in the system message corresponding to the two location update requests, this situation is completely consistent with the operation principle of the pseudo base station. Therefore, it is immediately 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, monitoring the corresponding pseudo-base station is started, that is, the target cell corresponding to the network-side device is monitored to obtain monitoring information.

In an embodiment of the present invention, the network standard of the pseudo base station cell (ie, the target cell) is first 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 the 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 specifies a special radio frequency channel in the GSM wireless system. A numbering system used to identify), RSSI (Received Signal Strength Indication, an optional part of the radio transport layer, used to determine link quality and whether to increase broadcast transmit strength), PCI ( Physical Cell Identifier), 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 every predetermined time, partial monitoring information corresponding to the time is obtained. 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 cell information and terminal location are obtained and recorded every 5S (the corresponding time can be adjusted according to actual needs), the correspondence between 360 groups of cell information and terminal location can be obtained within 30 minutes. In cell information, 360 groups of cell information are arranged according to the order of strength and weakness of signal strength (RSSI), and each cell information corresponds to one location point. Here, the higher the cell information, the closer the terminal location corresponding to the cell information is 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 location of the pseudo base station according to, for example, constraint 1 and constraint 2.

Constraint 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. In the monitoring information, each terminal location information corresponds to one cell information, and the cell information includes RSSI information, that is, each location point corresponds to one RSSI information. The plurality of position points are arranged, and a position point of a preset ratio with a higher rank and a position point with a preset ratio with a lower rank are obtained.

Constraint 2: Average distance from distal to a preset proportion of higher ranked position points<Average distance from distal to a lower ranked preset proportion of position points.

When the above constraint 1 and constraint 2 are simultaneously satisfied, the centrifugal is the location of the pseudo base station.

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

Constraint 1: 90% of the location points (the value can be adjusted according to the actual demand) are contained within a circle with a radius of 800 meters centered on the pseudo base station (the value can be adjusted according to the actual demand).

Constraint 2: Average distance from pseudo base stations to top 20% ranked location points <Average distance from pseudo base stations to bottom 20% ranked location points.

In an embodiment of the present invention, after the terminal sends a 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 it is detected that is 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, there is no need to use an expensive professional position positioning device, and only the terminal is used without the need for additional auxiliary means, so that the pseudo base station can be found immediately under the condition that labor and hardware costs are low, Positioning for the position of the pseudo base station may 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 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 setting the map software in the terminal in advance, and importing the acquired location information of the network-side device into the map software, the map software determines the tracking trajectory according to the current location information of the terminal and the location information of the network-side device and display the tracking trajectory on the screen of the terminal to guide the user to 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 while 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 new monitoring information.

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

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

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), which selects a special radio frequency channel in the GSM radio system. A numbering system used to identify), RSSI (Received Signal Strength Indication, an optional part of the radio transport layer, used to determine link quality and whether to increase broadcast transmit strength), PCI ( Physical Cell Identifier), Cell Identity (CI), Base Station Identification Code (BSIC), Cell ID (CID), Location Area Code/Tracking Area Code (TAC/LAC), etc. not limited By displaying and updating the cell information of the target cell in the terminal in real time, the user can determine whether he or she is moving closer to or further away from the pseudo base station according to a change in the RSSI size. For example, a smaller RSSI means that the pseudo base station is moving away from the terminal, and a larger RSSI means that the pseudo base station is moving closer to the terminal. When the RSSI reaches a certain value and no longer changes significantly, it means that the pseudo base station is near the terminal, and the terminal owner 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 in his or her location and the location of the pseudo base station according to the change in the cell information, 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 value; determining the network-side device as a pseudo base station if the number of times is greater than a preset threshold; 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 rejections is added this time, if the number of rejections in the cell is greater than 5, the terminal 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, when the terminal is rejected several times in 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 detecting whether the number of times of receiving the rejection message 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 sent by the terminal is accepted detecting whether or not; obtaining first system information for triggering a current location update request and second system information for triggering a historical location update request if the historical 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; determining the network-side device as a pseudo base station 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; further includes

In the embodiment of the present invention, when the current location update request is rejected, but the last location update request is accepted, this situation is consistent with the operation principle of the above-described pseudo base station, so that the network-side device is unlikely to be a pseudo base station Think very high, and make the next level of judgment.

According to the working principle of the pseudo base station, the pseudo base station broadcasts a system message for the first time to induce the terminal to access the working cell of the pseudo base station. After the pseudo base station achieves its purpose, it broadcasts a system message a second time, to remove the terminal from the working cell of the pseudo base station, i.e. to disconnect from the terminal, the first broadcast message and two In the second broadcast message, only the difference between LAC/TAC exists. If the current location update request is rejected, but the last location update request is 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 consistent with the operation principle of the pseudo base station, and immediately determines the network-side device as the pseudo base station.

In the embodiment of the present invention, according to the operating principle of the pseudo base station, the current location update request sent by the terminal is rejected, but the historical location update request last transmitted by the terminal is accepted, and the system corresponds to two location update requests If there is only a difference in location area code (LAC) or 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, the step of monitoring the target cell corresponding to the network-side device to obtain monitoring information includes: obtaining a network standard of the target cell; adjusting the original network mode of the terminal to the network standard, performing monitoring on the target cell, and obtaining monitoring information; 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, the network standard of the pseudo base station cell (ie, the target cell) is first 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 the network of another standard and ensuring the monitoring process.

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

In some embodiments, when the monitoring end command is received, 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 and performs cell selection in the original network mode.

In some embodiments, step S30 includes: obtaining partial monitoring information corresponding to the preset time period for each preset time period; acquiring location information of a plurality of terminals included in the partial monitoring information; acquiring location information of a network-side device according to a plurality of terminal location information and preset constraint conditions; 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 every predetermined time, partial monitoring information corresponding to the time is obtained. 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 cell information and terminal location are obtained and recorded every 5S (the corresponding time can be adjusted according to actual needs), the correspondence between 360 groups of cell information and terminal location 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 cell information, and each cell information corresponds to one location point. Here, the higher the cell information, the closer the terminal location corresponding to the cell information is 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 location of the pseudo base station according to, for example, constraint 1 and constraint 2.

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

Constraint 2: Average distance from distal to a preset proportion of higher ranked position points<Average distance from distal to a lower ranked preset proportion of position points.

When the above constraint 1 and constraint 2 are simultaneously satisfied, the centrifugal is the location of the pseudo base station.

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

Constraint 1: 90% of the location points (the value can be adjusted according to the actual demand) are contained within a circle with a radius of 800 meters centered on the pseudo base station (the value can be adjusted according to the actual demand).

Constraint 2: Average distance from pseudo base stations to location points in the top 20% of rank<Average distance from pseudo base stations to location points in the bottom 20% in rank.

In an embodiment of the present invention, after the terminal sends a 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 it is detected that is 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, there is no need to use an expensive professional position positioning device, and only a terminal is used without additional auxiliary means, so that a pseudo base station can be found immediately under conditions where labor and hardware costs are low, A pseudo base station may implement positioning for 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;

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

In some embodiments, the terminal may further include a generating module, configured to obtain the 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 detecting module 10 includes: a first detecting unit, configured to detect whether the number of times of receiving the rejection message is greater than a preset threshold; a first judging unit, configured to judge the network-side apparatus as a pseudo base station if the number of times is greater than a preset threshold value; may include.

In some embodiments, the detection module 10 may include: a second detection unit, configured to detect whether or not the request for history location update last transmitted by the terminal has been accepted if the number of times is less than a preset threshold; If the historical location update request last sent by the terminal is accepted, obtain system information configured to obtain first system information triggering the current location update request and second system information triggering the historical location update request unit; a third detecting unit, configured to detect whether only a difference of 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 of a location area code (LAC) or a tracking area code (TAC) exists in the first system information and the second system information; may further include.

In some embodiments, the monitoring module 20 includes: a network standard obtaining unit, configured to obtain the identity information of the target cell, and obtain 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 to perform monitoring on the target cell; may include.

In some embodiments, the monitoring module 20 may further include a restoring 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 for 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, according to the location information of the plurality of terminals and preset constraint conditions, the location information of the network-side device; may include.

Specific embodiments of the terminal of the present invention are basically the same as the respective embodiments of the above pseudo base station positioning method, and will not be repeated herein.

Further, an embodiment of the present invention provides 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 according to the text is implemented.

Specific embodiments of the computer-readable storage medium of the present invention are basically the same as each embodiment of the above pseudo-base station positioning method, and are not repeated herein.

It should be noted that, in the context of the text, the terms "comprising", "containing" or any other variation thereof mean non-exclusive inclusive, and thus a process, method, thing or system comprising a set of elements includes those elements as well as; It includes other elements not expressly listed, or further includes elements specific to these processes, methods, things, or systems. In the absence of further limitations, an element defined by the sentence "including one..." does not exclude other identical elements in the process, method, thing, or system that includes the element.

The sequence numbers of the above-described embodiments of the present invention are for description only, and do not indicate superiority or inferiority of the embodiments.

Through the description of the above embodiments, those skilled in the art will recognize that the methods of the above embodiments may be implemented by software and a necessary general-purpose hardware platform, of course, may also be implemented by hardware, but in many cases the former is a more preferred embodiment It can be clearly understood that Based on this understanding, the technical solution of the present invention is essentially and the part contributing to the prior art may be implemented in the form of a software product, and the computer software product includes the above-described storage medium (eg, ROM/RAM, magnetic It is stored on a disk, an optical disk) and includes several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, an air conditioner or a network device, etc.) to execute the method according to each embodiment of the present invention.

The above-described content is only an exemplary embodiment of the present invention, not a limitation on the scope of the patent of the present invention, equivalent configuration or process transformation using the content of the specification and drawings of the present invention, or other related technologies directly or indirectly Anything applied to the field is included in the scope of patent protection of the present invention.

Claims (10)

A pseudo-base station positioning method applied to a terminal, comprising:
detecting 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;
when the network-side device is a pseudo base station, monitoring a target cell corresponding to the network-side device to obtain monitoring information;
obtaining location information of a network-side device according to the monitoring information; includes,
The step of obtaining the location information of the network-side device according to the monitoring information,
acquiring 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, wherein the location information of each terminal corresponds to one cell information, and the cell information includes RSSI information;
Sorting the location points corresponding to the location information of the plurality of terminals according to the order of the RSSI from being large to being small, and obtaining a position point of a preset ratio with a higher rank and a position point with a preset ratio with a lower rank step; and
A plurality of location points corresponding to the location information of the plurality of terminals belong to a circle having a value of a preset radius, and the average distance from the centrifugal point of the circle to a location point of a preset ratio higher in the rank is the centrifugal point. determining the centrifugal as the location of the network-side device when the average distance from the lower rank to the lower-ranked preset ratio of location points is less than the average distance; A pseudo-base station positioning method comprising a. According to claim 1,
After the step of obtaining the location information of the network-side device according to the monitoring information,
A pseudo-base station positioning method comprising: acquiring current location information of a terminal; and generating a tracking trajectory according to the current location information of the terminal and location information of a network-side device. 3. The method of claim 2,
After generating the tracking trajectory,
The pseudo-base station positioning method further comprising the step of updating the cell information of the target cell in real time in the display interface of the terminal. According to claim 1,
The step of 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 value;
determining the network-side device as a pseudo base station if the number of times is greater than a preset threshold; A pseudo-base station positioning method comprising a. 5. The method of claim 4,
After the step of detecting whether the number of times of receiving the rejection message is greater than a preset threshold value,
if the number of times is less than a preset threshold, detecting whether the request for updating the history location last transmitted by the terminal is accepted;
obtaining first system information for triggering a current location update request and second system information for triggering a historical location update request if the historical 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;
determining the network-side device as a pseudo base station when there is only a difference between a location area code (LAC) or a tracking area code (TAC) in the first system information and the second system information; A pseudo base station positioning method further comprising a. According to claim 1,
The step of obtaining monitoring information by monitoring a target cell corresponding to the network-side device includes:
acquiring the identity information of the target cell, and acquiring the network standard of the target cell according to the identity information;
adjusting the original network mode of the terminal to the network standard, performing monitoring on the target cell, and obtaining monitoring information; A pseudo-base station positioning method comprising a. 7. The method of claim 6,
After adjusting the original network mode of the terminal to the network standard,
and restoring the network mode of the terminal to the original network mode when a monitoring end command is received. delete A memory, a processor, and a pseudo base station positioning program stored in the memory and executed by the processor, wherein when the pseudo base station positioning program is executed by the processor, any one of claims 1 to 7 A terminal, characterized in that the steps of the pseudo base station positioning method according to the method are implemented. A pseudo base station positioning program is stored, and when the pseudo base station positioning program is executed by the processor, the steps of the pseudo base station positioning method according to any one of claims 1 to 7 are implemented. storage medium.

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