WO2017166952A1

WO2017166952A1 - Network registration method and device of mobile terminal during startup, and computer storage medium

Info

Publication number: WO2017166952A1
Application number: PCT/CN2017/074184
Authority: WO
Inventors: 罗祖栋; 张建明
Original assignee: 努比亚技术有限公司
Priority date: 2016-03-29
Filing date: 2017-02-20
Publication date: 2017-10-05
Also published as: CN107241781A

Abstract

Disclosed is a network registration method of a mobile terminal during startup, comprising: when a mobile terminal starts up, searching for networks; when a network frequency band where registration is to be performed is a GSM frequency band, determining whether it is the first time that a base station corresponding to the network frequency band where registration is to be performed has sent a position update registration request for registration; if it is the first time that the base station where registration is to be performed has sent the position update registration request, configuring a preset parameter of the position update registration request according to an incorrect subscriber identity and sending the position update registration request to the base station where registration is to be performed; determining whether first registration rejection information is received within a preset time period; if yes, registering at the base station where registration is to be performed again according to a correct subscriber identity; and if not, re-determining a network frequency band where registration is to be performed according to arrangement orders of signal intensities. Also disclosed are a network registration device of a mobile terminal during startup, a computer storage medium, and a mobile terminal.

Description

Method and device for registering network by mobile terminal, computer storage medium

Technical field

The present invention relates to the field of mobile communications technologies, and in particular, to a method and apparatus for a mobile terminal to register a network, a computer storage medium, and a mobile terminal.

Background technique

As is known, since the GSM network does not have a two-way authentication mechanism for the mobile terminal and the base station as in the 3G and 4G networks, a network performs a one-way authentication mechanism for the mobile terminal. Under this authentication mechanism, the pseudo base station can enable the GSM user to access by simulating the base station, and push information to the user through various methods such as short message, telephone, and Internet access, which not only causes interference to the user, but also protects the user's security and privacy. The damage is caused, and the public spectrum resources are greatly depleted; the mobile terminal has a security risk in the state of accessing the GSM network for communication.

Summary of the invention

The embodiment of the invention provides a method and a device for registering a network of a mobile terminal, and a computer storage medium, which aims to improve the security of the mobile terminal in the state of accessing the GSM network for communication during the booting process.

An apparatus for registering a network of a mobile terminal according to an embodiment of the present invention, where the apparatus for registering a network by the mobile terminal includes:

The search network module is configured to search the network when the mobile terminal is powered on, and arrange the networks searched for each frequency band according to the signal strength for network registration;

The first determining module is configured to determine, when determining a network frequency band to be registered, whether the network frequency band to be registered is a GSM frequency band;

The second judging module is configured to determine that the network frequency band to be registered is a GSM frequency band Whether the base station corresponding to the network frequency band is registered for the first time to send a location update registration request;

a control module, configured to: when the base station to be registered is the first time to send a location update registration request, set a preset parameter in the location update registration request with an incorrect user identifier, and send the location update registration request to the Base station to be registered;

The third determining module is configured to determine whether the first refusal registration information sent by the base station to be registered according to the location update registration request is received in the first preset time period;

The processing module is configured to re-register with the to-be-registered base station according to the correct user card identification code when receiving the first rejection registration information within the first preset time period; when in the first preset time period When the first rejection registration information is not received, the network frequency band to be registered is re-determined according to the signal strength ranking order.

In an embodiment of the present invention, the device for starting the registration of the network by the mobile terminal further includes:

a sending module, configured to: when the first deny registration information is not received in the first preset time period, receive the authentication sent by the to-be-registered base station according to the location update registration request When requested, the error authentication verification information obtained according to the first preset algorithm is sent to the base station to be registered;

The fourth determining module is configured to determine whether the second refusal registration information sent by the base station to be registered according to the erroneous authentication verification information is received in the second preset time period;

The processing module is further configured to: when receiving the second refusal registration information in the second preset time period, obtain correct authentication verification information according to the correct user card identification code and the second preset algorithm. The registered base station is re-registered; when the second refusal registration information is not received within the second preset time period, the network frequency band to be registered is re-determined according to the signal strength ranking order.

The fifth determining module is configured to determine whether the network frequency band to be registered is a pseudo base station frequency band; when the network frequency band to be registered is a pseudo base station frequency band, triggering the processing module to perform re-determination of the network frequency band operation to be registered according to the signal strength ranking order When the network frequency band to be registered is the true base station frequency band, the second determining module is configured to perform the registration operation for determining whether the base station corresponding to the network frequency band to be registered is the first sending location update registration request.

In an embodiment of the present invention, the fifth determining module is configured to determine whether the network frequency band to be registered exists in the pre-stored pseudo base station frequency band table; if yes, determine the network to be registered. The frequency band is a pseudo base station frequency band; if not, determining that the network frequency band to be registered is a true base station frequency band;

The processing module is further configured to: when the first deny registration information is not received within the first preset time period, record the frequency band information of the pseudo base station frequency band in the pseudo base station frequency band table.

The search network module, the first determining module, the second determining module, the control module, the third determining module, the processing module, the sending module, the fourth determining module, and the The fifth judging module can be implemented by using a central processing unit (CPU), a digital signal processor (DSP), or a field-programmable gate array (FPGA).

In an embodiment of the present invention, the user identifier includes one of an IMSI, a TMSI, an IMEI, and an IMEISV.

The embodiment of the invention further provides a method for a mobile terminal to register a network, comprising:

When the mobile terminal is powered on, the network is searched, and the networks searching for each frequency band are arranged according to the signal strength for network registration;

When determining the network frequency band to be registered, determining whether the network frequency band to be registered is a GSM frequency band;

When the network frequency band to be registered is the GSM frequency band, it is determined whether the base station corresponding to the network frequency band to be registered is registered for the first time sending location update registration request;

When the base station to be registered is the first time to send a location update registration request, the preset parameter in the location update registration request is set with an incorrect user identifier, and the location update registration request is sent to the base station to be registered;

Determining, by the first preset time period, whether the first refusal registration information sent by the base station to be registered according to the location update registration request is received;

If yes, re-registering with the base station to be registered according to the correct user card identification code;

If not, the network frequency band to be registered is re-determined according to the signal strength ranking order.

In an embodiment of the present invention, before the determining the network frequency band to be registered according to the signal strength ranking order, the method further includes:

When the first rejection registration information is not received within the first preset time period, when receiving the authentication request sent by the to-be-registered base station according to the location update registration request, according to the A preset algorithm obtains incorrect authentication verification information and sends the information to the base station to be registered;

Determining, in the second preset time period, whether the second refusal registration information sent by the base station to be registered according to the erroneous authentication verification information is received;

If yes, re-registering the base station to be registered according to the correct user card identification code and the second preset algorithm to obtain correct authentication verification information;

In an embodiment of the present invention, before determining whether the base station corresponding to the network band to be registered is registered for the first time to send the location update registration request, the method further includes:

Determining whether the network frequency band to be registered is a pseudo base station frequency band;

If yes, performing the determining, according to the signal strength ranking order, the network frequency band to be registered;

If no, the base station corresponding to the network frequency band to be registered is determined to be registered for the first time sending location update registration request.

In an embodiment of the present invention, the determining whether the network frequency band to be registered is a pseudo Base station bands include:

Determining whether the network frequency band to be registered exists in the pre-stored pseudo base station frequency band table; if yes, determining that the network frequency band to be registered is a pseudo base station frequency band; if not, determining that the network frequency band to be registered is True base station band;

Before the determining the network frequency band to be registered according to the signal strength ranking order, the method further includes: recording the frequency band information of the pseudo base station frequency band in the pseudo base station frequency band table.

The embodiment of the present invention provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions include:

In an embodiment of the present invention, the computer executable instructions further include:

Before re-determining the network band to be registered according to the signal strength ranking order, when In the case that the first deny registration information is not received in the first preset time period, when receiving the authentication request sent by the to-be-registered base station according to the location update registration request, according to the first preset The algorithm obtains incorrect authentication verification information and sends the information to the base station to be registered;

Determining whether the network band corresponding to the network band to be registered is registered for the first time to send the location update registration request, and determining whether the network band to be registered is a pseudo base station band;

In the process of determining whether the network frequency band to be registered is a pseudo base station frequency band, determining whether the network frequency band to be registered exists in the pre-stored pseudo base station frequency band table; if yes, determining that the network frequency band to be registered is pseudo a base station frequency band; if not, determining that the network frequency band to be registered is a true base station frequency band;

An embodiment of the present invention provides a mobile terminal, where the mobile terminal includes:

a storage medium configured to store computer executable instructions;

a processor configured to execute computer executable instructions stored on the storage medium, the computer executable instructions comprising: searching for a network when the mobile terminal is powered on, and arranging the networks searched for each frequency band according to signal strength, When the network frequency band to be registered is determined, it is determined whether the network frequency band to be registered is the GSM frequency band; when the network frequency band to be registered is the GSM frequency band, it is determined whether the base station corresponding to the network frequency band to be registered is the first time to send the location update registration. Requesting to register; when the base station to be registered is the first time to send a location update registration request, setting a preset parameter in the location update registration request with an incorrect user identifier, and transmitting the location update registration request to the Determining, by the registered base station, whether the first deny registration information sent by the base station to be registered according to the location update registration request is received in the first preset time period; if yes, according to the correct user card identification code Re-registration of the base station to be registered; if not, re-determine the registration to be registered according to the order of signal strength Network band.

In an embodiment of the present invention, the processor is configured to execute computer executable instructions stored on the storage medium, the computer executable instructions further comprising: determining, according to a sequence of signal strengths, re-determining Before the registered network band, if the first refusal of registration information is not received within the first preset time period, the eNB that receives the registration request to update according to the location update request is received. When the request is made, the erroneous authentication verification information is sent to the base station to be registered according to the first preset algorithm, and it is determined whether the base station to be registered is received according to the error in the second preset time period. The second rejection registration information sent by the verification information; if yes, the correct authentication verification information is obtained according to the correct user card identification code and the second preset algorithm to re-register with the base station to be registered; if not, according to the signal strength The order of the sequences re-determines the network band to be registered.

In an embodiment of the present invention, the processor is configured to execute computer executable instructions stored on the storage medium, the computer executable instructions further comprising: determining, by the network frequency band to be registered, Whether the base station determines whether the network band to be registered is a pseudo base station band before registering the first location update request, and if so, executing the root The network frequency band to be registered is re-determined according to the signal strength sequence; if not, the base station corresponding to the network frequency band to be registered is determined to be registered for the first time location update registration request.

In an embodiment of the present invention, the processor is configured to execute computer executable instructions stored on the storage medium, the computer executable instructions further comprising: determining whether a network frequency band to be registered is In the process of the pseudo base station frequency band, determining whether the network frequency band to be registered exists in the pre-stored pseudo base station frequency band table; if yes, determining that the network frequency band to be registered is a pseudo base station frequency band; if not, determining the The network frequency band to be registered is the true base station frequency band; the re-determining the network frequency band to be registered according to the signal strength ranking order further includes: recording the frequency band information of the pseudo base station frequency band in the pseudo base station frequency band table.

In the embodiment of the present invention, when the mobile terminal is powered on, the network is searched, and the network that searches for each frequency band is arranged according to the signal strength to perform network registration; when determining the network frequency band to be registered, it is determined whether the network frequency band to be registered is GSM. Frequency band; when the network frequency band to be registered is the GSM frequency band, it is determined whether the base station corresponding to the network frequency band to be registered is registered for the first time location update registration request; when the base station to be registered is the first time to send a location update registration request, the wrong user The identifier setting location updates the preset parameter in the registration request, and sends the location update registration request to the base station to be registered; and determines whether the base station to be registered receives the request according to the location update registration request in the first preset time period. The registration information is rejected; if yes, the base station to be registered is re-registered according to the correct user card identification code; if not, the network frequency band to be registered is re-determined according to the signal strength ranking order. Since the network band to be registered is determined to be a pseudo base station band during the startup process of the mobile terminal, the mobile terminal can be prevented from being connected to the pseudo base station after being powered on, thereby improving the state in which the mobile terminal accesses the GSM network for communication during the booting process. The security used below.

DRAWINGS

1 is a schematic structural diagram of hardware of a mobile terminal that implements various embodiments of the present invention;

2 is a schematic structural diagram of a function module of a first embodiment of a device for registering a network of a mobile terminal according to the present invention;

3 is a schematic structural diagram of a function module of a second embodiment of a device for registering a network of a mobile terminal according to the present invention;

4 is a diagram showing an example of registration of a mobile terminal in an embodiment of a device for registering a network of a mobile terminal according to the present invention;

5 is a diagram showing an example of registration of a mobile terminal in another embodiment of a device for booting a network of a mobile terminal according to the present invention;

6 is a schematic structural diagram of a function module of a third embodiment of a device for booting a network of a mobile terminal according to the present invention;

7 is a schematic flowchart of a first embodiment of a method for a mobile terminal to register a network according to the present invention;

8 is a schematic flowchart of a second embodiment of a method for a mobile terminal to register a network according to the present invention;

9 is a schematic flowchart of a third embodiment of a method for a mobile terminal to register a network according to the present invention;

FIG. 10 is a diagram showing an example of a mobile terminal registration process in an embodiment of a method for a mobile terminal to register a network according to an embodiment of the present invention.

The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.

detailed description

It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

A mobile terminal embodying various embodiments of the present invention will now be described with reference to the accompanying drawings. In the following description, the use of suffixes such as "module", "component" or "unit" for indicating an element is merely an explanation for facilitating the present invention, and does not have a specific meaning per se. Therefore, "module" and "component" can be used in combination.

The mobile terminal can be implemented in various forms. For example, the terminal described in the present invention can be packaged Mobile terminals such as mobile phones, smart phones, notebook computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (tablets), PMPs (portable multimedia players), navigation devices, and the like, and such as digital TVs, desktops A fixed terminal such as a computer. In the following, it is assumed that the terminal is a mobile terminal. However, those skilled in the art will appreciate that configurations in accordance with embodiments of the present invention can be applied to fixed type terminals in addition to components that are specifically for mobile purposes.

FIG. 1 is a schematic diagram showing the hardware structure of a mobile terminal embodying various embodiments of the present invention. The mobile terminal 100 of the embodiment of the present invention includes an antenna 101, a transceiver 102, a processor 103, a digital signal processing chip 104, a codec 105, an earpiece 106, a microphone 107, and a subscriber identity card 108.

The subscriber identity card 108 is used for connection and information exchange with the mobile terminal 100, provides related data required for mobile communication services (voice service, data service, etc.), and stores user information, short messages, and execution authentication algorithms therein. Generate encryption keys, etc.

Digital signal processing chip 104 includes suitable hardware, logic, circuitry, and/or code for audio signal processing, such as echo signal suppression, noise suppression, etc. during audio processing.

The codec 105 includes appropriate hardware, logic, circuitry, and/or code for A/D and D/A conversion.

Antenna 101 is used to transmit and receive signals.

Handset 106 includes suitable hardware, logic, circuitry, and/or code for outputting sound signals.

Microphone 107 includes suitable hardware, logic, circuitry, and/or code for acquiring voice signals.

The transceiver 102 is responsible for modulating the signal from the processor to the radio frequency band and transmitting it by the antenna after being processed by power amplification or the like. The transceiver 102 is also responsible for transmitting the signal received by the antenna to the processor 103 after low power noise amplification, mixing, and the like.

The processor 103 is configured to perform baseband processing functions of the physical layer of the communication protocol stack, including digital association Detection, modulation/demodulation, channel coding/decoding, etc., as well as for handling complex logical operations and task assignment, providing an interactive interface for the user, executing an operating system of the mobile terminal, and the like. Further, the mobile terminal 100 further includes a memory, a power supply unit, a positioning unit, a display unit, and the like for performing respective functions.

Based on the hardware structure of the mobile terminal, various embodiments of the method and apparatus for booting the network of the mobile terminal of the present invention are proposed.

As shown in FIG. 2, the first embodiment of the present invention provides an apparatus for registering a network of a mobile terminal, and the apparatus for registering a network by the mobile terminal includes:

The search network module 11 is configured to search the network when the mobile terminal is powered on, and arrange the networks searched for each frequency band according to the signal strength to perform network registration;

The device for registering a network of a mobile terminal according to an embodiment of the present invention is mainly used in a mobile terminal, and is used for selecting a network for communicating with a mobile terminal in a GSM network environment. Specifically, the mobile terminal is preferably a mobile phone. In the following embodiments, the mobile terminal is a mobile phone as an example for detailed description.

In this embodiment, when the mobile phone is powered on, the network in the current environment needs to be searched, and the searched network is arranged according to the signal strength. Therefore, when registering in the network, the network frequency band to be registered is selected according to the order in which the signal strengths are arranged. It can be understood that the above network may include 2G (ie, GSM network), 3G, and 4G.

The first determining module 12 is configured to determine, when determining the network frequency band to be registered, whether the network frequency band to be registered is a GSM frequency band;

After determining the network frequency band to be registered, it is first determined whether the network frequency band to be registered is the GSM frequency band, and if it is the GSM frequency band, the pseudo base station frequency band judgment is required. If it is not the GSM frequency band, the pseudo base station judgment is not required, and the direct base station is directly initiated. Location update registration can be.

Specifically, the pseudo base station usually obtains the BCCH (Broadcast Control Channel) frequency and field strength information of the neighboring cell on the mobile phone through the engineering mobile phone, and the selected signal is the most The weak cell performs masquerading; then, according to the GSM cell selection and reselection algorithm, the pseudo base station cell generates a great C2 value to inhale the surrounding user's mobile phone to camp (ie, the mobile phone accesses the GSM network formed by the pseudo base station). At this time, the pseudo base station can obtain the underlying information of the network such as the user TMSI/IMSI/IMEI, and finally set any caller number to send information (for example, scam message) to the user through the SDCCH channel. Therefore, the pseudo base station is not interconnected with the real mobile network. When the user's mobile phone accesses the pseudo base station, the user cannot dial the real user, and cannot send information and data to the real user and the website.

The second judging module 13 is configured to: when the network frequency band to be registered is the GSM frequency band, determine whether the base station corresponding to the network frequency band to be registered is registered for the first sending location update registration request;

The control module 14 is configured to: when the base station to be registered is the first time to send the location update registration request, set the preset parameter in the location update registration request with the wrong user identifier, and send the location update registration request to the base station to be registered;

Specifically, when performing cell reselection and power-on search, the mobile phone needs to initiate a location update registration to the base station. Data services (network data communication) and voice services (for example, voice calls, text messaging, etc.) can be performed only when the mobile phone is registered on the real base station. In the process of registration, the base station needs to identify the mobile phone to determine whether it is an illegal user. If it is an illegal user, the base station will reject the mobile phone registration. Therefore, the embodiment of the present invention identifies the pseudo base station in the registration process of the power-on network registration and the cell re-selection. When it is selected to confirm that the network band to be registered is the GSM band, it is necessary to identify whether the base station to be registered is a pseudo base station.

In this embodiment, the user identifier is a parameter used by the base station to identify whether the user is an illegal user. It can be understood that the content of the user identifier is different under different protocol codes. Specifically, the subscriber identity code includes an IMSI (International Mobile Subscriber Identification Number), an IMEI (International Mobile Equipment Identity), a TMSI (Temporary Mobile Subscriber Identity), and an IMEISV ( One of the International Mobile Equipment Identity Software Version).

Specifically, after the user determines the base station corresponding to the network band to be registered, the location update registration request is sent to the base station, and it is determined whether the user sends the location update registration request to the base station for the first time, and if yes, the user is identified by the wrong user. The preset parameter in the code setting location update registration request forms a specific location update registration request, and then transmits the specific location update registration request to the base station. It can be understood that the above-mentioned erroneous user identification code is used for identification failure when performing illegal user identification on the base station. Specifically, the setting manner of the erroneous user identification code may be set according to actual needs, for example, the number of digits of the user identification code may be modified or a fixed value (such as 1) may be added to the correct user identification code, etc., specifically The implementation manner is not further limited herein. If the base station to be registered is not the first registration, the location update registration is performed according to the normal registration process, and the normal location update registration process is not further described herein.

The third determining module 15 is configured to determine whether the first refusal registration information sent by the base station to be registered according to the location update registration request is received in the first preset time period;

The processing module 16 is configured to re-register with the base station to be registered according to the correct user card identification code when the first rejection registration information is received within the first preset time period; when not received within the first preset time period When the first registration information is rejected, the network frequency band to be registered is re-determined according to the signal strength ranking order.

In this embodiment, when the base station to be registered receives the location update registration request, the user identifier is obtained according to the preset parameter in the location update registration request. Since the user identification code received at this time is an incorrect identification code, when the base station to be registered performs user identification, it will determine that the currently registered mobile phone is an illegal user, and the mobile phone registration will be rejected at this time, and at the same time, the mobile phone will be notified to the mobile phone. Send the first rejection registration information. Based on the above registration principle, after the mobile phone updates the registration request according to the incorrect user identification code, it is determined whether the result of the first rejection registration information returned by the base station is received within the first preset time period. Pseudo identification. Specifically, if the first refusal registration information sent by the base station to be registered according to the location update registration request is received in the first preset time period, it is determined that the base station to be registered is a true base station; The first deny registration information sent by the base station to be registered according to the location update registration request is not received in the inter-segment, and then the base station to be registered is determined to be a pseudo base station. It can be understood that the length of the first preset time period may be set according to actual needs, which is not further defined herein.

When it is determined that the base station to be registered is a pseudo base station, one base station is re-selected for registration, and when the reselected base station to be registered has been registered before, the registration is performed according to a normal registration procedure; if the base station to be registered is re-selected If it is not registered, it will be registered according to the registration process of this scheme to identify whether the base station is a pseudo base station. After being identified as a true base station by the identification, the registration can be performed on the base station to be registered according to the normal registration procedure. In this embodiment, the base station to be registered can be re-registered according to the correct user card identification code.

In an embodiment of the present invention, referring to FIG. 3, based on the foregoing embodiment, in this embodiment, the apparatus for registering a network by the mobile terminal includes:

The search network module 11 is configured to search the network when the mobile terminal is powered on, and search for each frequency Segment networks are arranged according to signal strength for network registration;

The sending module 17 is configured to: when the first deny registration information is not received within the first preset time period, when receiving the authentication request sent by the to-be-registered base station according to the location update registration request, according to the first pre- The algorithm obtains the wrong authentication verification information and sends the information to the base station to be registered;

The fourth determining module 18 is configured to determine whether the second refusal registration information sent by the base station to be registered according to the erroneous authentication verification information is received in the second preset time period;

The processing module 16 is configured to: according to the correct user card identification code and the first when the first rejection registration information is received within the first preset time period or the second rejection registration information is received within the second preset time period The second preset algorithm obtains the correct authentication verification information to re-register with the base station to be registered; when the second rejection registration information is not received within the second preset time period or when the first reservation period is not received within the first preset time period When the registration request is rejected, the authentication request sent by the base station to be registered according to the location update registration request is not received, and the network frequency band to be registered is re-determined according to the signal strength ranking order.

As shown in FIG. 4 and FIG. 5, when registering on the real base station, if the location update registration request is sent with the wrong user identifier, the base station will send the location update registration request to the core network, where the core network can be located. Sending the first refusal registration information to the mobile phone through the base station; in addition, the core network It is also possible not to refuse registration here, and to refuse registration in the subsequent authentication process. At this time, the core network sends an authentication request to the mobile phone through the base station, where the authentication request carries a preset authentication parameter. When the mobile phone receives the authentication request sent by the base station, the mobile terminal obtains the wrong authentication verification information according to the authentication request and the first preset algorithm, and then sends the error to the base station to be registered. On the real base station, the erroneous authentication verification information may be sent by the base station to the core network for authentication, thereby determining the authentication identification, and the core network sends the second refusal registration information to the mobile phone through the real base station to reject the true Registration of the base station; if the fake base station receives the erroneous authentication verification information, since the authentication cannot be performed, the registration is usually directly accepted to camp the registered mobile phone on the base station. Based on the foregoing principle, whether the mobile phone to be registered receives the second refusal registration information sent by the base station to be registered according to the erroneous authentication verification information may determine whether the base station to be registered is a true base station.

It can be understood that the length of the second preset time period can be set according to actual needs, which is not further defined herein.

Specifically, the content of the first rejection registration information and the second rejection registration information may be set according to actual needs, and details are not described herein.

It should be noted that, in the case that the real base station is different in the time of transmitting the refusal of the registration information, in the embodiment, when the mobile phone is registered on the same base station to be registered for the first time, the authentication is still sent when the authentication is performed. The information is verified so that the accuracy of the base station identification can be guaranteed in both layers. It should be explained here that the calculation method of the incorrect authentication verification information can be set according to actual needs. For example, the authentication parameter in the above authentication request may not be used, and the algorithm expression of the authentication calculation may also be changed. The manner of its specific modification is not further defined herein.

In an embodiment of the present invention, with reference to FIG. 6, based on the foregoing embodiment, in this embodiment, the apparatus for registering a network by the mobile terminal includes:

The first determining module 12 is configured to determine, when determining the network frequency band to be registered, the to-be-registered Whether the network band is the GSM band;

The processing module 16 is configured to re-register with the base station to be registered according to the correct user card identification code when the first rejection registration information is received within the first preset time period; when not received within the first preset time period When the first registration information is rejected, the network frequency band to be registered is re-determined according to the signal strength ranking order;

The fifth determining module 19 is configured to determine whether the network frequency band to be registered is a pseudo base station frequency band. When the network frequency band to be registered is a pseudo base station frequency band, the trigger processing module 16 performs re-determination of the network frequency band operation to be registered according to the signal strength ranking order. When the network frequency band to be registered is the true base station frequency band, the second determining module 13 is configured to determine whether the base station corresponding to the network frequency band to be registered performs the registration operation for the first time sending location update registration request.

When it is selected to confirm that the network frequency band to be registered is the GSM frequency band, it may be determined according to a preset rule whether the network frequency band to be registered is a pseudo base station frequency band. In this embodiment, the preset rule may be in various forms, for example, in the form of a white list, or may be determined in the form of a blacklist. The following will be described in detail in the form of a blacklist. For example, the pseudo base station frequency band of the previous statistics may be marked and built, and stored in the mobile phone to form a pre-stored pseudo base station frequency band table. When the pseudo base station frequency band is determined, the fifth determining module 19 is configured to: determine whether there is a network frequency band to be registered in the pre-stored pseudo base station frequency band table; if yes, determine that the network frequency band to be registered is a pseudo base station frequency band; If not, determine the network band to be registered It is the true base station band.

It can be understood that, because different users have different requirements, in this embodiment, a specific mode may also be set to determine whether the currently registered base station is a pseudo base station after the mobile terminal registers with the base station. Specifically, the method for controlling the booting of the mobile terminal to register the network is different from the method for controlling the booting of the mobile terminal by the mobile terminal. The method further includes: a sixth determining module, determining whether to enter the pseudo base station identification mode; the first determining module 120 Specifically, when the mobile terminal enters the pseudo base station identification mode, and determines the network frequency band to be registered, it is determined whether the network frequency band to be registered is the GSM frequency band.

In this embodiment, a display interface can be output for the user to input whether pseudo base station identification is required. When the user selects to enter the pseudo base station identification, the mobile phone is controlled to enter the pseudo base station identification mode. At this time, whenever the mobile phone switches to the new GSM network, the currently registered base station is identified after the mobile phone registers with the base station. Since the process of authenticating the base station itself has a delay problem, it is not necessary to authenticate the registered base station at all times. After all, the probability of occurrence of the pseudo base station is small, and the user can perform authentication when performing important operations. Therefore, in this embodiment, a proprietary mode is set for authenticating the mobile phone, which can improve the flexibility of the authentication operation.

As shown in FIG. 7, a first embodiment of a method for a mobile terminal to register a network is provided. The method for the mobile terminal to register a network includes:

Step S110, when the mobile terminal is powered on, search the network, and arrange the networks searching for each frequency band according to the signal strength to perform network registration;

The method for the mobile terminal to register the network according to the embodiment of the present invention is mainly applied to the mobile terminal, and is used for selecting a network for communicating with the mobile terminal in a GSM network environment. Specifically, the mobile terminal is preferably a mobile phone. In the following embodiments, the mobile terminal is a mobile phone as an example for detailed description.

In this embodiment, when the mobile phone is powered on, it is necessary to search the network in the current environment. The searched networks are arranged according to the signal strength. Therefore, when registering in the network, the network frequency band to be registered is selected according to the order in which the signal strengths are arranged. It can be understood that the above network may include 2G (ie, GSM network), 3G, and 4G.

Step S120: When determining the network frequency band to be registered, determining whether the network frequency band to be registered is a GSM frequency band;

Specifically, the pseudo base station generally obtains the BCCH (Broadcast Control Channel) frequency and field strength information of the neighboring cell on the mobile phone through the engineering mobile phone, and performs the masquerading of the cell with the weakest selected signal; and then according to the GSM cell selection and reselection algorithm. The pseudo base station cell generates a great C2 value to inhale the surrounding user's mobile phone to camp (ie, the mobile phone accesses the GSM network formed by the pseudo base station). At this time, the pseudo base station can obtain the underlying information of the network such as the user TMSI/IMSI/IMEI, and finally set any caller number to send information (for example, scam message) to the user through the SDCCH channel. Therefore, the pseudo base station is not interconnected with the real mobile network. When the user's mobile phone accesses the pseudo base station, the user cannot dial the real user, and cannot send information and data to the real user and the website.

Step S130: When the network frequency band to be registered is the GSM frequency band, determine whether the base station corresponding to the network frequency band to be registered is registered for the first time sending location update registration request;

Step S140, when the base station to be registered is the first time to send a location update registration request, the preset parameter in the location update registration request is set with the wrong user identification code, and the location update registration request is sent to the base station to be registered;

Specifically, when performing cell reselection and power-on search, the mobile phone needs to initiate a location update registration to the base station. Data services (network data communication) and voice services (for example, voice calls, text messaging, etc.) can be performed only when the mobile phone is registered on the real base station. In the process of registration, the base station needs to identify the mobile phone to determine whether it is an illegal user. If it is an illegal user, Then the base station will reject the phone registration. Therefore, the embodiment of the present invention identifies the pseudo base station in the registration process of the power-on network registration and the cell re-selection. When it is selected to confirm that the network band to be registered is the GSM band, it is necessary to identify whether the base station to be registered is a pseudo base station.

In step S150, it is determined whether the first reject registration information sent by the base station to be registered according to the location update registration request is received in the first preset time period; if yes, step S160 is performed, otherwise step S170 is performed;

Step S160, re-registering with the base station to be registered according to the correct user card identification code;

Step S170, re-determining the network frequency band to be registered according to the signal strength ranking order.

In this embodiment, when the base station to be registered receives the location update registration request, the user identifier is obtained according to the preset parameter in the location update registration request. Since the user identification code received at this time is an incorrect identification code, when the base station to be registered performs user identification, it will determine that the currently registered mobile phone is an illegal user, and the mobile phone registration will be rejected at this time, and at the same time, the mobile phone will be notified to the mobile phone. Send the first rejection registration information. Based on the above registration principle, after the mobile phone updates the registration request according to the incorrect user identification code, it is determined whether the result of the first rejection registration information returned by the base station is received within the first preset time period. Pseudo identification. Specifically, if the first refusal registration information sent by the base station to be registered according to the location update registration request is received in the first preset time period, it is determined that the base station to be registered is a true base station; if the first preset time period is If the first refusal registration information sent by the base station to be registered according to the location update registration request is not received, it is determined that the base station to be registered is a pseudo base station. It can be understood that the length of the first preset time period may be set according to actual needs, which is not further defined herein.

In the embodiment of the present invention, when the mobile terminal is powered on, the network is searched, and the network that searches for each frequency band is arranged according to the signal strength to perform network registration; when determining the network frequency band to be registered, it is determined whether the network frequency band to be registered is GSM. Frequency band; when the network frequency band to be registered is the GSM frequency band, it is determined whether the base station corresponding to the network frequency band to be registered is registered for the first time location update registration request; when the base station to be registered is the first time to send a location update registration request, the wrong user The identifier setting location updates the preset parameter in the registration request, and sends the location update registration request to the base station to be registered; determining whether the base station to be registered is received in the first preset time period according to The first refusal registration information sent by the location update registration request; if yes, re-registering with the base station to be registered according to the correct user card identification code; if not, re-determining the network frequency band to be registered according to the signal strength ranking order. Since the network band to be registered is determined to be a pseudo base station band during the startup process of the mobile terminal, the mobile terminal can be prevented from being connected to the pseudo base station after being powered on, thereby improving the state in which the mobile terminal accesses the GSM network for communication during the booting process. The security used below.

In an embodiment of the present invention, referring to FIG. 8, based on the foregoing embodiment, in the embodiment, the method for the mobile terminal to register the network includes:

In step S150, it is determined whether the first reject registration information sent by the base station to be registered according to the location update registration request is received in the first preset time period; if yes, step S200 is performed; otherwise, step S180 is performed;

In step S180, if the first rejection registration information is not received in the first preset time period, it is determined whether the authentication request sent by the base station to be registered according to the location update registration request is received; if yes, step S190 is performed. Otherwise, step S170 is performed;

Step S190, the error authentication verification information obtained by the first preset algorithm is sent to the base station to be registered;

Step S200, determining whether the second refusal registration information sent by the base station to be registered according to the erroneous authentication verification information is received in the second preset time period; if yes, executing step S210, otherwise performing step S170;

Step S210, obtaining correct authentication verification information according to the correct user card identification code and the second preset algorithm, and re-registering with the base station to be registered;

In this embodiment, the above step S210 replaces the above step S160.

As shown in FIG. 4 and FIG. 5, when registering on the real base station, if the location update registration request is sent with the wrong user identifier, the base station will send the location update registration request to the core network, where the core network can be located. The first reject registration information is sent to the mobile phone through the base station; in addition, the core network may not refuse to register here, and refuses to register in the subsequent authentication process. At this time, the core network sends an authentication request to the mobile phone through the base station, where the authentication request carries a preset authentication parameter. When the mobile phone receives the authentication request sent by the base station, the mobile terminal obtains the wrong authentication verification information according to the authentication request and the first preset algorithm, and then sends the error to the base station to be registered. On the real base station, the erroneous authentication verification information may be sent by the base station to the core network for authentication, thereby determining the authentication identification, and the core network sends the second refusal registration information to the mobile phone through the real base station to reject the true Registration of the base station; if the fake base station receives the erroneous authentication verification information, since the authentication cannot be performed, the registration is usually directly accepted to camp the registered mobile phone on the base station. Based on the foregoing principle, whether the mobile phone to be registered receives the second refusal registration information sent by the base station to be registered according to the erroneous authentication verification information may determine whether the base station to be registered is a true base station.

It should be noted that since the true base station is different at the time of sending the rejection registration information, this is true. In the case where the mobile phone is registered on the same base station to be registered for the first time in the embodiment, when the authentication is performed, the wrong authentication verification information is still sent, so that the accuracy of the base station identification can be guaranteed in both layers. It should be explained here that the calculation method of the incorrect authentication verification information can be set according to actual needs. For example, the authentication parameter in the above authentication request may not be used, and the algorithm expression of the authentication calculation may also be changed. The manner of its specific modification is not further defined herein.

In an embodiment of the present invention, referring to FIG. 9, based on the foregoing embodiment, in the embodiment, the method for the mobile terminal to register the network includes:

In step S220, when the network frequency band to be registered is the GSM frequency band, it is determined whether the network frequency band to be registered is a pseudo base station frequency band; if yes, step S170 is performed; if not, step S130 is performed.

Step S130, determining whether the base station corresponding to the network frequency band to be registered is registered for the first time sending location update registration request;

When it is selected to confirm that the network frequency band to be registered is the GSM frequency band, it may be determined according to a preset rule whether the network frequency band to be registered is a pseudo base station frequency band. In this embodiment, for the preset The rules can be in various forms, such as in the form of a whitelist, or in the form of a blacklist. The following will be described in detail in the form of a blacklist. For example, the pseudo base station frequency band of the previous statistics may be marked and built, and stored in the mobile phone to form a pre-stored pseudo base station frequency band table. When the pseudo base station frequency band determination is performed, the foregoing step S210 includes: determining whether there is a network frequency band to be registered in the pre-stored pseudo base station frequency band table; if yes, determining that the network frequency band to be registered is a pseudo base station frequency band; if not, It is determined that the network frequency band to be registered is a true base station frequency band.

It can be understood that, because different users have different requirements, in this embodiment, a specific mode may also be set to determine whether the currently registered base station is a pseudo base station when the mobile terminal registers with the base station. Specifically, the method for the mobile terminal to start the registration of the network is different from the method for the mobile terminal to register the network. The method further includes: determining whether to enter the pseudo base station identification mode before the step S120; the step S120 is specifically: When the mobile terminal enters the pseudo base station identification mode and determines the network frequency band to be registered, it is determined whether the network frequency band to be registered is the GSM frequency band.

In this embodiment, a display interface can be output for the user to input whether pseudo base station identification is required. When the user selects to enter the pseudo base station identification, the mobile phone is controlled to enter the pseudo base station identification mode. At this time, whenever the mobile phone switches to the new GSM network, the currently registered base station is identified when the mobile phone registers with the base station. Since the process of authenticating the base station itself has a delay problem, it is not necessary to authenticate the registered base station at all times. After all, the probability of occurrence of the pseudo base station is small, and the user can perform authentication when performing important operations. Therefore, in this embodiment, a proprietary mode is set for authenticating the mobile phone, which can improve the flexibility of the authentication operation.

Specifically, the implementation process of the present invention will be described in detail with reference to a specific embodiment. Referring to FIG. 10, after the network is searched, the network signal strength is sorted to confirm the base station to be registered; then, it is determined whether the pseudo base station detection mode is enabled; if yes, it is determined whether the network frequency band corresponding to the base station to be registered is the GSM frequency band; If no, the location update registration request is directly initiated. In pseudo When the base station detection mode is enabled, when the network frequency band corresponding to the base station to be registered is not the GSM frequency band, the location update registration request is directly initiated; when the network frequency band corresponding to the base station to be registered is the GSM frequency band, the base station to be registered is determined. Whether the corresponding network frequency band is a pseudo base station frequency band, and then re-confirming the base station to be registered according to the network signal strength sequence, to restart the registration process, otherwise, whether the base station to be registered is a pseudo base station is identified by means of authentication. When it is identified as a pseudo base station, the frequency band information corresponding to the pseudo base station is stored in the pseudo base station band table, and the base station to be registered is re-confirmed according to the network signal strength order, to restart the registration process; when it is identified as a true base station , restart the registration process with the correct information, initiate a location update registration request to register. After the location update request is initiated, the corresponding operation is performed according to the result of the registration; if the registration is successful, the registration process is ended. If the registration fails, the base station to be registered is re-confirmed according to the network signal strength ranking order to restart the registration process.

An embodiment of the present invention provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions include: when the mobile terminal is powered on, searching for a network, and searching for a network of each frequency band according to The signal strength is arranged for network registration; when determining the network band to be registered, it is determined whether the network band to be registered is the GSM band; when the network band to be registered is the GSM band, determining whether the base station corresponding to the network band to be registered is the first Transmitting a location update registration request for registration; when the base station to be registered is the first to send a location update registration request, setting a preset parameter in the location update registration request with an incorrect user identifier, and updating the location registration request Sending to the base station to be registered; determining whether the first refusal registration information sent by the base station to be registered according to the location update registration request is received within the first preset time period; if yes, according to the correct user card The identification code is re-registered with the base station to be registered; if not, according to the signal strength Column order to be registered to redefine the network band.

In an embodiment of the present invention, the computer executable instructions further include: before the redetermining the network frequency band to be registered according to the signal strength ranking order, when the first preset time period is not received, In the case of the first rejection of the registration information, the receipt of the note is received. When the base station updates the registration request according to the location update request, the error authentication verification information is sent to the base station to be registered according to the first preset algorithm; and it is determined whether the second base station is received in the second preset time period. And the second refusal registration information sent by the base station to be registered according to the erroneous authentication verification information; if yes, obtaining the correct authentication verification information according to the correct user card identification code and the second preset algorithm The registered base station re-registers; if not, the network frequency band to be registered is re-determined according to the signal strength ranking order.

In an embodiment of the present invention, the computer executable instruction further includes: determining, by the base station corresponding to the network frequency band to be registered, whether the network band to be registered is a pseudo before registering the first time location update registration request. The base station frequency band; if yes, performing the determining the network frequency band to be registered according to the signal strength ranking order; if not, performing the determining whether the base station corresponding to the network frequency band to be registered is registered for the first transmission location update registration request.

In an embodiment of the present invention, the computer executable instruction further includes: determining, in the process of determining whether the network frequency band to be registered is a pseudo base station frequency band, determining whether the to-be-registered is present in the pre-stored pseudo base station frequency band table. a network band; if yes, determining that the network band to be registered is a pseudo base station band; if not, determining that the network band to be registered is a true base station band; and determining, to be registered, according to a sequence of signal strengths The network frequency band further includes: recording frequency band information of the pseudo base station frequency band in the pseudo base station frequency band table.

a storage medium configured to store computer executable instructions;

a processor configured to execute computer executable instructions stored on the storage medium, the computer executable instructions comprising: searching for a network when the mobile terminal is powered on, and arranging the networks searched for each frequency band according to signal strength, Network registration; determining the frequency of the network to be registered In the segment, it is determined whether the network band to be registered is the GSM band; when the network band to be registered is the GSM band, it is determined whether the base station corresponding to the network band to be registered is registered for the first-time location update registration request; when the base station to be registered is the first When the location update registration request is sent, the preset parameter in the location update registration request is set with an incorrect user identifier, and the location update registration request is sent to the base station to be registered; Whether the first refusal registration information sent by the base station to be registered according to the location update registration request is received in the time period; if yes, re-registering with the base station to be registered according to the correct user card identification code; The network frequency band to be registered is re-determined according to the signal strength ranking order.

In an embodiment of the present invention, the processor is configured to execute computer executable instructions stored on the storage medium, the computer executable instructions further comprising: determining, by the network frequency band to be registered, Whether the base station determines whether the network frequency band to be registered is a pseudo base station frequency band before registering the first time location update registration request; if yes, performing the determining the network frequency band to be registered according to the signal strength ranking order; if not, executing the Determining whether the base station corresponding to the network frequency band to be registered is registered for the first transmission location update registration request.

It is to be understood that the term "comprises", "comprising", or any other variants thereof, is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes those elements. It also includes other elements that are not explicitly listed, or elements that are inherent to such a process, method, article, 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 serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

For purposes of explanation, the foregoing description has been used in a specific However, it will be apparent to those skilled in the art that <RTIgt; The foregoing description of the specific embodiments of the invention has been presented They are not intended to be exhaustive or to limit the invention to the precise form disclosed. Many modifications and variations are possible in light of the above teachings. The embodiments are shown and described in order to best explain the principles of the invention and the embodiments of the invention Various embodiments. The scope of the invention is intended to be defined by the appended claims and their equivalents.

The above is only a preferred embodiment of the present invention, and thus does not limit the scope of the patent of the present invention. The equivalent structure or equivalent process transformations made by the present specification and the contents of the drawings are directly or indirectly applied to other related technical fields, and are included in the scope of patent protection of the present invention.

Industrial applicability

Claims

A device for a mobile terminal to register a network, comprising:

The search network module is configured to search the network when the mobile terminal is powered on, and arrange the networks searched for each frequency band according to the signal strength for network registration;

The first determining module is configured to determine, when determining a network frequency band to be registered, whether the network frequency band to be registered is a GSM frequency band;

The second determining module is configured to: when the network frequency band to be registered is the GSM frequency band, determine whether the base station corresponding to the network frequency band to be registered is registered for the first sending location update registration request;

a control module, configured to: when the base station to be registered is the first time to send a location update registration request, set a preset parameter in the location update registration request with an incorrect user identifier, and send the location update registration request to the Base station to be registered;

The third determining module is configured to determine whether the first refusal registration information sent by the base station to be registered according to the location update registration request is received in the first preset time period;

The processing module is configured to re-register with the to-be-registered base station according to the correct user card identification code when receiving the first rejection registration information within the first preset time period; when in the first preset time period When the first rejection registration information is not received, the network frequency band to be registered is re-determined according to the signal strength ranking order.
The device for registering a network with a mobile terminal according to claim 1, wherein the device for registering the network by the mobile terminal further comprises:

a sending module, configured to: when the first deny registration information is not received in the first preset time period, receive the authentication sent by the to-be-registered base station according to the location update registration request When requested, the error authentication verification information obtained according to the first preset algorithm is sent to the base station to be registered;

a fourth determining module, configured to determine whether the to-be-received is received within the second preset time period The second refusal registration information sent by the base station of the book according to the erroneous authentication verification information;

The processing module is further configured to: when receiving the second refusal registration information in the second preset time period, obtain correct authentication verification information according to the correct user card identification code and the second preset algorithm. The base station to be registered is re-registered; when the second reject registration information is not received within the second preset time period, the network frequency band to be registered is re-determined according to the signal strength ranking order.
The device for registering a network with a mobile terminal according to claim 1, wherein the device for registering the network by the mobile terminal further comprises:

The fifth determining module is configured to determine whether the network frequency band to be registered is a pseudo base station frequency band; when the network frequency band to be registered is a pseudo base station frequency band, triggering the processing module to perform re-determination of the network frequency band operation to be registered according to the signal strength ranking order When the network frequency band to be registered is the true base station frequency band, the second determining module is configured to perform the registration operation for determining whether the base station corresponding to the network frequency band to be registered is the first sending location update registration request.
The apparatus for registering a network of a mobile terminal according to claim 3, wherein the fifth determining module is configured to determine whether the network frequency band to be registered exists in the pre-stored pseudo base station frequency band table; if yes, Determining that the network frequency band to be registered is a pseudo base station frequency band; if not, determining that the network frequency band to be registered is a true base station frequency band;

The processing module is further configured to: when the first deny registration information is not received within the first preset time period, record the frequency band information of the pseudo base station frequency band in the pseudo base station frequency band table.
The apparatus for registering a network of a mobile terminal according to any one of claims 1 to 4, wherein the subscriber identity code comprises one of an IMSI, a TMSI, an IMEI, and an IMEISV.
A method for a mobile terminal to register a network, comprising:

When the mobile terminal is powered on, the network is searched, and the networks searching for each frequency band are arranged according to the signal strength for network registration;

When determining the network frequency band to be registered, determining whether the network frequency band to be registered is a GSM frequency band;

When the network frequency band to be registered is the GSM frequency band, it is determined whether the base station corresponding to the network frequency band to be registered is registered for the first time sending location update registration request;

When the base station to be registered is the first time to send a location update registration request, the preset parameter in the location update registration request is set with an incorrect user identifier, and the location update registration request is sent to the base station to be registered;

Determining, by the first preset time period, whether the first refusal registration information sent by the base station to be registered according to the location update registration request is received;

If yes, re-registering with the base station to be registered according to the correct user card identification code;

If not, the network frequency band to be registered is re-determined according to the signal strength ranking order.
The method for the mobile terminal to register a network according to claim 6, wherein the re-determining the network frequency band to be registered according to the signal strength ranking order further comprises:

When the first rejection registration information is not received within the first preset time period, when receiving the authentication request sent by the to-be-registered base station according to the location update registration request, according to the A preset algorithm obtains incorrect authentication verification information and sends the information to the base station to be registered;

Determining, in the second preset time period, whether the second refusal registration information sent by the base station to be registered according to the erroneous authentication verification information is received;

If yes, re-registering the base station to be registered according to the correct user card identification code and the second preset algorithm to obtain correct authentication verification information;

If not, the network frequency band to be registered is re-determined according to the signal strength ranking order.
The method of claim 6, wherein the determining whether the base station corresponding to the network band to be registered is registered for the first time to send the location update registration request includes:

Determining whether the network frequency band to be registered is a pseudo base station frequency band;

If yes, performing the determining, according to the signal strength ranking order, the network frequency band to be registered;

If no, the base station corresponding to the network frequency band to be registered is determined to be registered for the first time sending location update registration request.
The method of claim 8, wherein the determining whether the network frequency band to be registered is a pseudo base station frequency band comprises:

Determining whether the network frequency band to be registered exists in the pre-stored pseudo base station frequency band table; if yes, determining that the network frequency band to be registered is a pseudo base station frequency band; if not, determining that the network frequency band to be registered is True base station band;

Before the determining the network frequency band to be registered according to the signal strength ranking order, the method further includes: recording the frequency band information of the pseudo base station frequency band in the pseudo base station frequency band table.
The method for a mobile terminal to register a network according to any one of claims 6 to 9, wherein the subscriber identity code comprises one of IMSI, TMSI, IMEI and IMEISV.
A computer storage medium storing computer executable instructions, the computer executable instructions comprising:

When the mobile terminal is powered on, the network is searched, and the networks searching for each frequency band are arranged according to the signal strength for network registration;

When determining the network frequency band to be registered, determining whether the network frequency band to be registered is a GSM frequency band;

When the network frequency band to be registered is the GSM frequency band, it is determined whether the base station corresponding to the network frequency band to be registered is registered for the first time sending location update registration request;

When the base station to be registered is the first time to send a location update registration request, the preset parameter in the location update registration request is set with an incorrect user identifier, and the location update registration request is sent to the base station to be registered;

Determining, by the first preset time period, whether the first refusal registration information sent by the base station to be registered according to the location update registration request is received;

If yes, re-registering with the base station to be registered according to the correct user card identification code;

If not, the network frequency band to be registered is re-determined according to the signal strength ranking order.
The computer storage medium of claim 11 wherein the computer executable instructions further comprise:

Before the network frequency band to be registered is re-determined according to the signal strength ranking order, if the first refusal registration information is not received within the first preset time period, the base station to be registered is received When the authentication request sent by the location update request is sent, the error authentication verification information obtained according to the first preset algorithm is sent to the base station to be registered;

Determining, in the second preset time period, whether the second refusal registration information sent by the base station to be registered according to the erroneous authentication verification information is received;

If yes, re-registering the base station to be registered according to the correct user card identification code and the second preset algorithm to obtain correct authentication verification information;

If not, the network frequency band to be registered is re-determined according to the signal strength ranking order.
The computer storage medium of claim 11 wherein the computer executable instructions further comprise:

Determining whether the network band corresponding to the network band to be registered is registered for the first time to send the location update registration request, and determining whether the network band to be registered is a pseudo base station band;

If yes, performing the determining, according to the signal strength ranking order, the network frequency band to be registered;

If no, the base station corresponding to the network frequency band to be registered is determined to be registered for the first time sending location update registration request.
The computer storage medium of claim 13 wherein the computer executable instructions further comprise:

In the process of determining whether the network frequency band to be registered is a pseudo base station frequency band, determining whether the network frequency band to be registered exists in the pre-stored pseudo base station frequency band table; if yes, determining that the network frequency band to be registered is pseudo a base station frequency band; if not, determining that the network frequency band to be registered is a true base station frequency band;

Before the determining the network frequency band to be registered according to the signal strength ranking order, the method further includes: recording the frequency band information of the pseudo base station frequency band in the pseudo base station frequency band table.
The computer storage medium of any of claims 11 to 14, wherein the subscriber identity code comprises one of an IMSI, a TMSI, an IMEI, and an IMEISV.
A mobile terminal, the mobile terminal comprising:

a storage medium configured to store computer executable instructions;

a processor configured to execute computer executable instructions stored on the storage medium, the computer executable instructions comprising: searching for a network when the mobile terminal is powered on, and arranging the networks searched for each frequency band according to signal strength, When the network frequency band to be registered is determined, it is determined whether the network frequency band to be registered is the GSM frequency band; when the network frequency band to be registered is the GSM frequency band, it is determined whether the base station corresponding to the network frequency band to be registered is the first time to send the location update registration. Requesting to register; when the base station to be registered is the first time to send a location update registration request, setting a preset parameter in the location update registration request with an incorrect user identifier, and transmitting the location update registration request to the Registered base station; determine whether to receive the first preset time period Determining, by the base station to be registered, the first deny registration information sent according to the location update registration request; if yes, re-registering with the to-be-registered base station according to the correct user card identification code; if not, re-determining according to the signal strength ranking order The network band to be registered.
The mobile terminal of claim 16, wherein the processor is configured to execute computer executable instructions stored on the storage medium, the computer executable instructions further comprising: reordering according to a sequence of signal strengths Before determining the network frequency band to be registered, if the first rejection registration information is not received within the first preset time period, the base station to be registered is received according to the location update registration request. When the authentication request is received, the erroneous authentication verification information is sent to the base station to be registered according to the first preset algorithm; and it is determined whether the base station to be registered is received according to the error in the second preset time period. The second authentication registration information sent by the authentication verification information; if yes, the correct authentication verification information is obtained according to the correct user card identification code and the second preset algorithm to re-register with the base station to be registered; if not, according to The order of signal strengths is re-determined to determine the network band to be registered.
The mobile terminal of claim 16, wherein the processor is configured to execute computer executable instructions stored on the storage medium, the computer executable instructions further comprising: determining the network band to be registered Whether the corresponding base station registers for the first time to send the location update registration request, and determines whether the network frequency band to be registered is a pseudo base station frequency band; if yes, performing the determining the network frequency band to be registered according to the signal strength ranking order; if not, Performing the determining whether the base station corresponding to the network frequency band to be registered is registered for the first time sending location update registration request.
The mobile terminal of claim 18, wherein the processor is configured to execute computer executable instructions stored on the storage medium, the computer executable instructions further comprising: determining the network band to be registered Whether it is a pseudo base station band, the process is judged to be pre-stored Whether the network band to be registered exists in the pseudo base station band table; if yes, determining that the network band to be registered is a pseudo base station band; if not, determining that the network band to be registered is a true base station band Before the determining the network frequency band to be registered according to the signal strength ranking order, the method further includes: recording the frequency band information of the pseudo base station frequency band in the pseudo base station frequency band table.
The mobile terminal according to any one of claims 16 to 19, wherein the subscriber identity code comprises one of IMSI, TMSI, IMEI and IMEISV.