WO2018000787A1 - Terminal, and method and system for identifying pseudo base station - Google Patents

Abstract

Disclosed are a method and system for identifying a pseudo base station applicable to a terminal. The method comprises: upon occurrence of reselection of a base station cell, receiving, by a terminal, system information transmitted by a reselected base station cell; transmitting a location update request to the base station cell; determining, according to the system information, whether the base station cell satisfies a pseudo base station determination criterion, and if so, after receiving identification request information transmitted by the base station cell, transmitting pseudo identification information to the base station cell; determining whether the identification request information is continuously received from the base station cell, and if so, marking an address of the base station cell as a pseudo base station; and reselecting and accessing, by the terminal, another base station cell. The invention can not only identify a pseudo base station but also prevent information of a terminal user from being disclosed during an identification process, thereby greatly ensuring network security for the terminal user. Also provided is a terminal comprising the above system for identifying a pseudo base station. Since the terminal also has the above advantages, no repetitive description is given thereon.

Description

Terminal and pseudo base station identification method and system

This application claims priority to Chinese Patent Application No. 201610486479.3, entitled "A Terminal, Pseudo Base Station Identification Method and System", filed on June 28, 2016, the entire contents of which are incorporated by reference. In this application.

Technical field

The present invention relates to the field of GSM communication technologies, and in particular, to a pseudo base station identification method and system. The invention also relates to a terminal.

Background technique

The pseudo base station is a public mobile operator base station forged by criminals. The pseudo base station absorbs some mobile phone users by forging part of the network parameters and increasing its own transmission power. When the mobile phone user successfully camps on the pseudo base station, the pseudo base station can acquire the mobile phone user. The identity information, followed by large-volume illegal information transmission, and then obtain illegal profits. Referring to Figure 1, Figure 1 is a flow chart of the process of the current pseudo base station operation.

The existing GSM (Global System for Mobile Communication) mobile communication system has the defect of one-way authentication, that is, only the network authenticates the terminal, and the terminal cannot identify the legality of the network identity, because the pseudo is not recognized. The base station has low security when the user connects to the network and is vulnerable to the intrusion of the pseudo base station.

Therefore, how to provide a terminal, a pseudo base station identification method and system capable of improving user network security is a problem that a person skilled in the art needs to solve at present.

Summary of the invention

An object of the present invention is to provide a method and system for identifying a pseudo base station, which not only can identify a pseudo base station, but also avoids information leakage of the terminal user in the identification process, thereby greatly ensuring network security of the terminal user. Another object of the present invention is to provide a terminal having the above effects.

To solve the above technical problem, the present invention provides a pseudo base station identification method for a terminal, including:

Step s101: After the base station cell reselection occurs on the terminal, receive system information sent by the base station cell after reselection;

Step s102: Send a location update request to the base station cell;

Step s103: determining, according to the system information, whether the base station cell satisfies a pseudo base station determination criterion, and if yes, proceeding to step s104;

Step s104: After receiving the identity request information sent by the base station cell, send the fake identity information to the base station cell.

Step s105: Determine whether to continue receiving the identity request information sent by the base station cell, and if yes, mark the address of the base station cell as a pseudo base station; and the terminal reselects into another base station cell.

Preferably, after marking the base station cell as a pseudo base station, the method further includes:

The address of the base station cell is written into the list of forbidden access cells stored in the terminal.

Preferably, the system information includes a location area code and a periodic location update time;

The process of determining, according to the system information, whether the base station cell satisfies a pseudo base station determination criterion is specifically:

When the terminal performs cell reselection of the base station, if the received signal increases within a preset time, the value exceeds a preset signal threshold;

And the location area code of the base station cell exceeds a preset area code range;

And the base station cell satisfies the pseudo base station determining criterion, and the base station cell does not satisfy the pseudo base station determining criterion.

Preferably, after the step s103, the method further includes:

And if the base station cell does not satisfy the pseudo base station determining criterion, after receiving the identity request information sent by the base station cell, sending the real identity information to the base station cell;

After the location update succeeds, the address of the base station cell is marked as a true base station cell, and the terminal is reselected into the base station cell.

Preferably, after the step s105, the method further includes:

If the identity request information sent by the base station cell is not continuously received, determining whether the location update rejection information sent by the base station cell is received, and if yes, resending the location update request to the base station cell;

After receiving the identity request information sent by the base station cell, sending real identity information to the base station cell;

After the location update succeeds, the address of the base station cell is marked as a true base station cell, and the terminal is reselected into the base station cell.

Preferably, after the marking the address of the base station cell as a true base station cell, the method further includes:

The address of the base station cell is written into the list of allowed access cells stored in the terminal.

To solve the above technical problem, the present invention also provides a pseudo base station identification system, which is used for a terminal, and includes:

The base station information receiving module is configured to: after the base station cell reselection occurs in the terminal, receive system information sent by the reselected base station cell, and trigger a location update request sending module;

The location update request sending module is configured to send a location update request to the base station cell;

The first determining module is configured to determine, according to the system information, whether the base station cell satisfies a pseudo base station determining criterion, and if yes, triggering the first identity information sending module;

The first identity information sending module is configured to: after receiving the identity request information sent by the base station cell, send the fake identity information to the base station cell;

The second determining module is configured to determine whether to continue receiving the identity request information sent by the base station cell, and if yes, mark the address of the base station cell as a pseudo base station; and the terminal reselects into another base station cell.

Preferably, the method further comprises:

The pseudo base station write module is configured to, when the address of the base station cell is marked as a pseudo base station, write the address of the base station cell into the list of forbidden access cells stored in the terminal.

Preferably, the first determining module is specifically configured to:

When the system information includes a location area code and a periodic location update time, determining whether the increased value of the received signal within a preset time exceeds a preset signal threshold when the terminal performs cell reselection of the base station, and Whether the location area code of the base station cell exceeds a preset area code range, and whether the periodic location update time of the base station cell is less than a preset period, and if yes, the base station cell satisfies the pseudo base station determination Standard, triggering the first identity information sending module; otherwise, the base station cell does not satisfy the pseudo base station determining criterion.

Preferably, the method further comprises:

The second identity information sending module is configured to: after receiving the identity request information sent by the base station cell, send the real identity information to the base station cell, and after the location update, trigger the true base station marking module; wherein, when the first When the determining module determines that the base station cell does not meet the pseudo base station determining criterion, triggering the second identity information sending module;

The true base station marking module is configured to mark that the address of the base station cell is a true base station cell.

Preferably, the method further comprises:

The third determining module is configured to: when the second determining module determines that the identity request information sent by the base station cell is not continuously received, determine whether the location update rejection information sent by the base station cell is received, and if yes, trigger the location The location update request sending module resends the location update request to the base station cell;

After the location update request sending module resends the location update request and receives the identity request information sent by the base station cell, the second identity information sending module is triggered.

Preferably, the method further comprises:

The real base station write module is configured to, after marking the address of the base station cell as a true base station cell, write the address of the base station cell into the list of allowed access cells stored in the terminal.

In order to solve the above technical problem, the present invention also provides a terminal, comprising the pseudo base station identification system according to any of the above.

Preferably, the terminal specifically includes a processor, an input device and an output device respectively connected to the processor through an interface, and a memory connected to the processor through a bus;

The pseudo base station identification system is stored in the memory;

The processor invokes the pseudo base station identification system in the memory to perform a pseudo base station identification operation through the bus.

The present invention provides a method and system for identifying a pseudo base station. Since the purpose of the pseudo base station is to obtain the identity information of the terminal user for illegal information transmission, in the present invention, after the base station cell reselection occurs in the terminal, the base station is first determined. Whether the cell is a pseudo base station (ie, whether the base station cell satisfies the pseudo base station determination criterion), if possible, the terminal sends the false identity information to test the base station cell, and if the base station cell continues to send the identity request information, it indicates that the base station cell is The pseudo base station (the true base station cell will send location update reject information). Therefore, the present invention can not only identify the pseudo base station, but also avoid the information leakage of the end user in the identification process, thereby greatly ensuring the network security of the end user. The present invention also provides a terminal, which has the above-mentioned beneficial effects, and details are not described herein again.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the prior art and the embodiments will be briefly described below. Obviously, the drawings in the following description are only some of the present invention. For the embodiments, those skilled in the art can obtain other drawings according to the drawings without any creative work.

1 is a flow chart showing the process of the current pseudo base station operation;

2 is a flowchart of a process of a pseudo base station identification method according to the present invention;

3 is a flowchart of a process of another pseudo base station identification method provided by the present invention;

4 is a schematic structural diagram of a pseudo base station identification system according to the present invention;

FIG. 5 is a schematic structural diagram of a terminal provided by the present invention.

detailed description

The core of the present invention is to provide a pseudo base station identification method and system, which can not only identify the pseudo base station, but also avoid the information leakage of the end user in the identification process, thereby greatly ensuring the network security of the end user. Another core of the present invention is to provide a terminal having the above effects.

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Embodiment 1

The present invention provides a pseudo base station identification method for a terminal. Referring to FIG. 2, FIG. 2 is a flowchart of a process for identifying a pseudo base station according to the present invention. The method includes:

Step s101: After the base station cell reselection occurs in the terminal, receive system information sent by the reselected base station cell;

Step s102: Send a location update request to the base station cell;

Step s103: judging whether the base station cell satisfies the pseudo base station determination criterion according to the system information, and if yes, proceeding to step s104;

Step s104: After receiving the identity request information sent by the base station cell, sending the fake identity information to the base station cell;

Step s105: Determine whether to continue receiving the identity request information sent by the base station cell. If yes, the address of the marked base station cell is a pseudo base station; and the terminal reselects the other base station cell.

The present invention provides a pseudo base station identification method. Since the purpose of the pseudo base station is to obtain the identity information of the terminal user for illegal information transmission, in the present invention, after the terminal performs cell reselection of the base station, it is first determined whether the base station cell is It may be a pseudo base station (ie, whether the base station cell satisfies the pseudo base station determination criterion). If possible, the terminal sends the false identity information to test the base station cell. If the base station cell continues to send the identity request information, it indicates that the base station cell is a pseudo base station. (The true base station cell will send location update reject information). Therefore, the present invention can not only identify the pseudo base station, but also avoid the information leakage of the end user in the identification process, thereby greatly ensuring the network security of the end user.

Embodiment 2

Based on the first embodiment, the present invention also provides another pseudo base station identification method. Referring to FIG. 3, FIG. 3 is a flowchart of a process of another pseudo base station identification method according to the present invention; the method includes:

Step s101: After the base station cell reselection occurs in the terminal, receive system information sent by the reselected base station cell;

The terminal here is a mobile phone or a tablet computer, and of course, the present invention does not limit this.

The pseudo base station generally works in the GSM900 frequency band, and has only one GSM frequency point, that is, only one base station cell is included, and the pseudo base station can change its own frequency point to the current network frequency point, and can adjust its own transmission power. Since the terminal always measures the neighboring neighboring cell signal in the idle state, the neighboring cell is reselected when the neighboring cell signal strength is greater than the currently located base station cell. Therefore, when the pseudo base station works, by increasing the transmission power, the terminal in the idle state can be quickly reselected into the pseudo base station.

Step s102: Send a location update request to the base station cell;

The location update request is a request information sent to the network to inform the current location of the network when the terminal finds that the current location area changes.

Step s103: judging whether the base station cell satisfies the pseudo base station determination criterion according to the system information, if yes, proceeding to step s104; if not, proceeding to step s111;

The system information includes a location area code (LAC) and a periodic location update time T3212;

In the present invention, the process of determining whether the base station cell satisfies the pseudo base station determination criterion according to the system information is specifically:

When the base station cell reselection occurs in the terminal, if the received signal increases within a preset time, the value exceeds the preset signal threshold;

And the location area code of the base station cell exceeds the preset area code range;

If the periodic location update time of the base station cell is less than the preset period, the base station cell satisfies the pseudo base station determination criterion. Otherwise, the base station cell does not satisfy the pseudo base station determination criterion.

It can be understood that each base station cell has a separate location area code, but the location area code of the true base station cell is located within a certain range (the range can be set as a preset area code range), and the location of the pseudo base station The area code usually does not belong to the location area code range of the real base station cell. Therefore, it can be determined whether the base station cell is a pseudo base station by determining whether the location area code of the base station cell after the reselection is located in the preset area code range.

In addition, when the pseudo base station starts to work, in order to attract the terminal to reselect the past, the transmission power is suddenly increased, that is, the transmission signal of the pseudo base station is stronger than the transmission signal of the real base station cell, and the transmission signal of the pseudo base station usually appears suddenly, thereby causing The signal received by the terminal will suddenly increase in a short period of time, so a short preset time (for example, a few seconds) can be set, and it is judged whether the signal received by the terminal increases in the preset time. The preset signal threshold is exceeded to initially determine whether the base station cell is a pseudo base station.

Different base station cells are set with different periodic location update times. When the terminal location is updated, the T3212 timer set in the base station cell where the terminal is located is started. If the terminal is always located in the base station cell, the T3212 timer arrives once. The predetermined time will control the terminal to send a location update request to the network side to report the current location, and avoid the network side losing the terminal location and unable to connect with the terminal. Generally, the periodic location update time of the true base station cell is long, for example, 60 minutes or 120 minutes. As the terminal accesses the pseudo base station, the terminal cannot normally use the service provided by the operator, and the terminal user is usually temporarily disconnected from the network. Therefore, in order to prevent the user from discovering an abnormality, the time for the user to access the pseudo base station is generally short, that is, the pseudo base station. The periodic location update time is short (for example, 6 minutes). Once the predetermined time of the T3212 timer arrives, the pseudo base station releases the terminal, and the terminal resends the location update request and re-resident in the real base station cell. Therefore, by determining the periodic location update time of the reselected base station cell, if it is less than the preset period, it may be initially determined whether the base station cell may be a pseudo base station.

In order to improve the accuracy of the pseudo base station determination standard, the present invention determines that the reselected base station cell complies with the pseudo base station determination criterion only when the above three cases occur, and then starts the subsequent process.

In addition, the present invention does not limit the preset time, the preset signal threshold, the preset area code range, and the preset period value, and the staff can set it according to the actual situation.

Step s104: After receiving the identity request information sent by the base station cell, sending the fake identity information to the base station cell;

Here, the identity request information (Identity request) refers to the base station cell used to request the IMSI (International Mobile Subscriber Identification Number), TMSI (Temporary Mobile Subscriber Identity), and IMEI (International). Mobile Equipment Identity, information such as the International Mobile Equipment Identity) is used to authenticate to verify whether the identity of the end user can access the network.

It can be understood that, in the case that the base station cell may be a pseudo base station, the fake identity information is sent to test the base station cell, which further avoids leakage of user identity information and improves network security.

Step s105: determining whether to continue receiving the identity request information sent by the base station cell, if yes, proceeding to step s106; if not, proceeding to step s109;

Step s106: marking the address of the base station cell as a pseudo base station;

Step s107: Write the address of the base station cell into the list of the forbidden access cells stored in the terminal;

The operation enables the terminal to discover and disconnect in time when re-selecting the pseudo base station again, without performing the above operations, thereby improving the recognition efficiency of the pseudo base station.

Step s108: the terminal reselects into another base station cell;

Step s109: determining whether the location update rejection information sent by the base station cell is received, and if yes, proceeding to step s110;

It can be understood that after the real base station cell receives the identity information sent by the terminal, if the information is false identity information, the true base station cell sends a location update reject message (Location update reject); if the information is true identity information, true The base station cell will send a location update accept message (Location update accept) to successfully perform location update.

Step s110: Resending the location update request to the base station cell;

Step s111: After receiving the identity request information sent by the base station cell, sending the real identity information to the base station cell;

Step s112: After the location update succeeds, the address of the marked base station cell is a true base station cell;

Step s113: Write the address of the base station cell into the list of allowed access cells stored in the terminal;

The operation enables the terminal to discover in time when re-selecting the cell into the real base station, and does not need to perform the foregoing determining operation, thereby improving the efficiency of the terminal accessing the base station cell.

Step s114: The terminal reselects into the base station cell.

Compared with the first embodiment, the embodiment further increases the step of transmitting the real identity information to the base station cell when determining that the base station cell is a true base station, so that the terminal normally accesses the real base station cell after the pseudo base station identification process is completed, thereby avoiding The pseudo base station identification process has an impact on the normal networking of the terminal; and in this embodiment, after the identification is completed, the address of the base station cell is correspondingly written into the list of the forbidden access cells stored in the terminal or allowed to access the cell list, so that the terminal is enabled. After reselecting to the base station cell, the type of the base station cell can be known in time without repeating the identification operation, thereby improving the working efficiency of the terminal accessing the base station cell.

It should be noted that the steps in this embodiment may be sequentially adjusted, merged, and deleted according to actual needs.

The present invention also provides a pseudo base station identification system for a terminal. Referring to FIG. 4, FIG. 4 is a schematic structural diagram of a pseudo base station identification system according to the present invention. The system includes:

The base station information receiving module 11 is configured to receive the system information sent by the reselected base station cell after the base station cell reselection occurs, and trigger the location update request sending module 12;

The location update request sending module 12 is configured to send a location update request to the base station cell;

The first determining module 13 is configured to determine, according to the system information, whether the base station cell satisfies the pseudo base station determining criterion, and if so, triggering the identity information sending module 14;

The first identity information sending module 14 is configured to: after receiving the identity request information sent by the base station cell, send the fake identity information to the base station cell;

The second judging module 15 is configured to determine whether to continue receiving the identity request information sent by the base station cell. If yes, the address of the marked base station cell is a pseudo base station; and the terminal reselects the other base station cell.

The first judging module 13 here is specifically set as:

When the system information includes the location area code and the periodic location update time, it is determined whether the increased value of the received signal within the preset time exceeds the preset signal threshold and the location area of the base station cell when the terminal performs cell reselection. Whether the code exceeds the preset area code range, and whether the periodic location update time of the base station cell is less than a preset period. If yes, the base station cell satisfies the pseudo base station determination criterion, triggering the first identity information sending module 14; otherwise, the base station cell does not The pseudo base station decision criterion is met.

Preferably, the system further comprises:

The pseudo base station write module 16 is configured to write the address of the base station cell into the list of forbidden access cells stored in the terminal when the address of the marked base station cell is a pseudo base station.

Preferably, the system further comprises:

The second identity information sending module 18 is configured to: after receiving the identity request information sent by the base station cell, send the real identity information to the base station cell, and after the location update, trigger the true base station marking module 19; wherein, when the first determining module 13 determines When the base station cell does not meet the pseudo base station determination criterion, the second identity information sending module 18 is triggered;

The true base station marking module 19 is configured to mark the address of the base station cell as a true base station cell.

Further, the system further includes:

The third determining module 17 is configured to: when the second determining module 15 determines that the identity request information sent by the base station cell is not continuously received, determine whether the location update rejection information sent by the base station cell is received, and if yes, trigger the location update request sending module. 12 resending the location update request to the base station cell;

After the location update request sending module 12 resends the location update request and receives the identity request information sent by the base station cell, the second identity information sending module 18 is triggered.

Preferably, the system further comprises:

The true base station write module 20 is configured to write the address of the base station cell into the list of allowed access cells stored in the terminal when the address of the marked base station cell is a true base station cell.

The present invention provides a pseudo base station identification system. Since the purpose of the pseudo base station is to obtain the identity information of the terminal user for illegal information transmission, in the present invention, after the base station cell reselection occurs in the terminal, it is first determined whether the base station cell is It may be a pseudo base station (ie, whether the base station cell satisfies the pseudo base station determination criterion). If possible, the terminal sends the false identity information to test the base station cell. If the base station cell continues to send the identity request information, it indicates that the base station cell is a pseudo base station. (The true base station cell will send location update reject information). Therefore, the present invention can not only identify the pseudo base station, but also avoid the information leakage of the end user in the identification process, thereby greatly ensuring the network security of the end user.

It should be noted that each module in the embodiment of the present invention may be combined, divided, and deleted according to actual needs.

The present invention further provides a terminal. Referring to FIG. 5, FIG. 5 is a schematic structural diagram of a terminal according to the present invention; the terminal includes the pseudo base station identification system.

The terminal specifically includes a processor 31, an input device 35 and an output device 36 respectively connected to the processor 31 through the interface 32, and a memory 34 connected to the processor 31 via the bus 33;

The pseudo base station identification system is stored in the memory;

The processor performs a pseudo base station identification operation by calling a pseudo base station identification system in the memory through the bus.

It can be understood that the terminal shown in FIG. 5 can be used to implement the method implemented by the embodiments of the present invention shown in FIG. 2 to FIG. 3, and for the convenience of description, only the parts related to the embodiments of the present invention are shown. For details not disclosed, please refer to the embodiments of the present invention shown in FIGS. 2 to 3.

The memory 34 is used to store a pseudo base station identification system, which is a set of program codes.

The processor 31 is configured to call the program code to perform the following operations:

After the base station cell reselection occurs in the terminal, the system information sent by the reselected base station cell is received by the input device 35;

Sending a location update request to the base station cell by the output device 36;

Determining, according to the system information, whether the base station cell satisfies the pseudo base station determining criterion, and if yes, after receiving the identity request information sent by the base station cell by using the input device 35, sending the false identity information to the base station cell by using the output device 36;

It is judged whether the input device 35 continues to receive the identity request information sent by the base station cell, and if so, the address of the marked base station cell is a pseudo base station; the terminal reselects the other base station cell.

As an optional implementation, the processor 31 is configured to invoke the program code, and is also used to perform the following operations:

After marking the address of the base station cell as a pseudo base station, the address of the base station cell is written into the list of the forbidden access cells stored in the terminal.

As an optional implementation, the processor 31 is configured to invoke the program code, and is also used to perform the following operations:

If it is determined that the base station cell does not satisfy the pseudo base station determination criterion, the input device 35 receives the identity request information sent by the base station cell, and then sends the real identity information to the base station cell;

After the location update succeeds, the address of the marked base station cell is a true base station cell; the terminal is reselected into the base station cell.

As an optional implementation, the processor 31 is configured to invoke the program code, and is also used to perform the following operations:

If the identity request information sent by the base station cell is not continuously received by the input device 35, it is determined whether the location update rejection information sent by the base station cell is received by the input device 35, and if so, the location update request is retransmitted by the output device 36 to the base station cell;

After receiving the identity request information sent by the base station cell by using the input device 35, transmitting the real identity information to the base station cell;

After the location update succeeds, the address of the marked base station cell is a true base station cell; the terminal is reselected into the base station cell.

As an optional implementation, the processor 31 is configured to invoke the program code, and is also used to perform the following operations:

After marking the address of the base station cell as a true base station cell, the address of the base station cell is written into the list of allowed access cells stored in the terminal.

It can be seen that, by implementing the terminal described in FIG. 5, the pseudo base station can be identified to prevent the terminal from accessing the pseudo base station, and the identified pseudo base station address can be stored in the access cell list in the terminal.

The various embodiments in the present specification are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

A person of ordinary skill in the art may understand that all or part of the various methods of the above embodiments may be completed by program instruction related hardware, and the program may be stored in a computer readable storage medium, and the storage medium includes a read only memory ( Read-Only Memory (ROM), Random Access Memory (RAM), Programmable Read-Only Memory (PROM), Erasable Programmable Read Only Memory (EPROM) One-time Programmable Read-Only Memory (OTPROM), Electronically-Erasable Programmable Read-Only Memory (EEPROM), Read-Only Disc (Compact Disc Read- Only Memory (CD-ROM) or other optical disc storage, disk storage, magnetic tape storage, or any other medium readable by a computer that can be used to carry or store data.

It should also be noted that in the present specification, relational terms such as first and second, etc. are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these entities or There is any such actual relationship or order between operations. Furthermore, the term "comprises" or "comprises" or "comprises" or any other variations thereof is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device that comprises a plurality of elements includes not only those elements but also Other elements, or elements that are inherent to such a process, method, item, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments are obvious to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but the scope of the invention is to be accorded

Claims (14)

A pseudo base station identification method, characterized in that it is used for a terminal, including: Step s101: After the base station cell reselection occurs on the terminal, receive system information sent by the base station cell after reselection; Step s102: Send a location update request to the base station cell; Step s103: determining, according to the system information, whether the base station cell satisfies a pseudo base station determination criterion, and if yes, proceeding to step s104; Step s104: After receiving the identity request information sent by the base station cell, send the fake identity information to the base station cell. Step s105: Determine whether to continue receiving the identity request information sent by the base station cell, and if yes, mark the address of the base station cell as a pseudo base station; and the terminal reselects into another base station cell. The method according to claim 1, wherein the marking the base station cell as a pseudo base station further comprises: The address of the base station cell is written into the list of forbidden access cells stored in the terminal. The method according to claim 1, wherein said system information comprises a location area code and a periodic location update time; The process of determining, according to the system information, whether the base station cell satisfies a pseudo base station determination criterion is specifically: When the terminal performs cell reselection of the base station, if the received signal increases within a preset time, the value exceeds a preset signal threshold; And the location area code of the base station cell exceeds a preset area code range; And the base station cell satisfies the pseudo base station determining criterion, and the base station cell does not satisfy the pseudo base station determining criterion. The method according to claim 3, wherein the step s103 further comprises: And if the base station cell does not satisfy the pseudo base station determining criterion, after receiving the identity request information sent by the base station cell, sending the real identity information to the base station cell; After the location update succeeds, the address of the base station cell is marked as a true base station cell, and the terminal is reselected into the base station cell. The method according to claim 4, wherein the step s105 further comprises: If the identity request information sent by the base station cell is not continuously received, determining whether the location update rejection information sent by the base station cell is received, and if yes, resending the location update request to the base station cell; After receiving the identity request information sent by the base station cell, sending real identity information to the base station cell; After the location update succeeds, the address of the base station cell is marked as a true base station cell, and the terminal is reselected into the base station cell. The method according to claim 4 or 5, wherein the marking the address of the base station cell as a true base station cell further comprises: The address of the base station cell is written into the list of allowed access cells stored in the terminal. A pseudo base station identification system, characterized in that it is used for a terminal, including: The base station information receiving module is configured to: after the base station cell reselection occurs in the terminal, receive system information sent by the reselected base station cell, and trigger a location update request sending module; The location update request sending module is configured to send a location update request to the base station cell; The first determining module is configured to determine, according to the system information, whether the base station cell satisfies a pseudo base station determining criterion, and if yes, triggering the first identity information sending module; The first identity information sending module is configured to: after receiving the identity request information sent by the base station cell, send the fake identity information to the base station cell; The second determining module is configured to determine whether to continue receiving the identity request information sent by the base station cell, and if yes, mark the address of the base station cell as a pseudo base station; and the terminal reselects into another base station cell. The system of claim 7 further comprising: The pseudo base station write module is configured to, when the address of the base station cell is marked as a pseudo base station, write the address of the base station cell into the list of forbidden access cells stored in the terminal. The system according to claim 7, wherein the first determining module is specifically configured to: When the system information includes a location area code and a periodic location update time, determining whether the increased value of the received signal within a preset time exceeds a preset signal threshold when the terminal performs cell reselection of the base station, and Whether the location area code of the base station cell exceeds a preset area code range, and whether the periodic location update time of the base station cell is less than a preset period, and if yes, the base station cell satisfies the pseudo base station determination Standard, triggering the first identity information sending module; otherwise, the base station cell does not satisfy the pseudo base station determining criterion. The system of claim 9 further comprising: The second identity information sending module is configured to: after receiving the identity request information sent by the base station cell, send the real identity information to the base station cell, and after the location update, trigger the true base station marking module; wherein, when the first When the determining module determines that the base station cell does not meet the pseudo base station determining criterion, triggering the second identity information sending module; The true base station marking module is configured to mark that the address of the base station cell is a true base station cell. The system of claim 10, further comprising: The third determining module is configured to: when the second determining module determines that the identity request information sent by the base station cell is not continuously received, determine whether the location update rejection information sent by the base station cell is received, and if yes, trigger the location The location update request sending module resends the location update request to the base station cell; After the location update request sending module resends the location update request and receives the identity request information sent by the base station cell, the second identity information sending module is triggered. The system of claim 10 or 11, further comprising: The real base station write module is configured to, after marking the address of the base station cell as a true base station cell, write the address of the base station cell into the list of allowed access cells stored in the terminal. A terminal characterized by comprising the pseudo base station identification system according to any one of claims 7-12. The terminal according to claim 13, wherein the terminal specifically comprises a processor, an input device and an output device respectively connected to the processor through an interface, and a memory connected to the processor through a bus; The pseudo base station identification system is stored in the memory; The processor invokes the pseudo base station identification system in the memory to perform a pseudo base station identification operation through the bus.

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