CN103200558B - The net locking method and phone-card separated mobile terminal of a kind of phone-card separated mobile terminal - Google Patents

Abstract

The invention discloses a network locking method for a mobile terminal with machine-card separation and a mobile terminal with machine-card separation. The application in a code division multiple access system includes: the mobile terminal reads the mobile terminal from a removable user identification module (RUIM) card Get any one or any combination of the operator name (SPN), home system identification code (SID) and network identification code (NID), compare it with the pre-configured locking conditions, and if the locking conditions are met, Enter the locked state of the phone. Include in the described mobile terminal: read module, be used for reading out any one parameter or the combination of arbitrary parameter in SPN, SID and NID from RUIM card; Compare module, be used for reading out described reading module The parameters are compared with the pre-configured locking conditions, and if the locking conditions are met, the mobile phone enters the locked state. Compared with the prior art, the invention reduces the difficulty of software development and improves the compatibility of the system.

Description

A network locking method for a machine-card separation mobile terminal and a machine-card separation mobile terminal

technical field

The invention relates to mobile phone network locking technology, in particular to a network locking method for a machine-card separation mobile terminal and a machine-card separation mobile terminal.

Background technique

With the popularization of mobile communication, the competition among operators is becoming more and more fierce, and has reached a stage of white-hot. In order to seize more user resources, expand the market scale, and attract users to use the company's network, network operators give users a lot of subsidies at any cost, and sell mobile phones to users at a price lower than cost through various commercial means. , free mobile phones and other promotional activities to attract users, but these preferential means have great risks. Once users buy phones at low prices and switch to other networks, it means that operators have lost a lot of subsidies, so it is necessary to It is technically guaranteed that the mobile phones that are sent or sold to users at a price lower than the cost can only use the operator's own network. Generally speaking, the most effective and direct way is to lock the mobile phone network to prevent users from transferring to other networks.

However, the current way to implement Code Division Multiple Access (CDMA) lock network is generally to lock the MIN (Mobile Identification Number, mobile identity number) segment, that is, to check the RUIM (Removable User Identity Module, removable Subscriber Identity Module) card whether the MIN value is the legal MIN value of the operator (that is, check whether the MIN value of the RUIM card is within the range of the legal MIN value of the operator). If the MIN value of the RUIM card is the legal MIN value of the operator, the mobile phone can work normally after being turned on; Services such as SMS will not work normally.

Since the above-mentioned network locking method itself can only lock the network by judging the legitimacy of the MIN segment value in the RUIM card, this method has the following defects:

First, the complexity of the encryption algorithm is low, the security level is low, and it is easy to be cracked;

Second, the compatibility is poor. Once the bureau upgrades the new MIN section, the mobile phone software must also be upgraded accordingly, otherwise the new MIN section will be judged as illegal by the network lock software, resulting in misoperation of the network lock.

Contents of the invention

The object of the present invention is to provide a network locking method for a machine-card separation mobile terminal and a machine-card separation mobile terminal, so as to overcome the defects that the existing network locking methods are easily cracked and have poor compatibility.

In order to solve the above problems, the present invention provides a network locking method for a mobile terminal with machine-card separation, which is applied to a code division multiple access system, including:

The mobile terminal reads any one or any combination of the operator name (SPN), home system identification code (SID) and network identification code (NID) from the removable subscriber identification module (RUIM) card, and the pre-configured lock The dead conditions are compared, and if the locked conditions are met, the mobile phone enters the locked state.

further,

The locking condition includes: the read SPN value is different from the pre-configured SPN value.

further,

The locking condition includes: the value of the first preset digit in the read SPN is different from the value of the same preceding digit in the preconfigured SPN.

further,

The locking condition further includes: the read attribution SID is different from the pre-configured attribution SID of the local network, and is not equal to the value of the equivalent attribution SID of the local network.

further,

The locking condition further includes: the read home SID is the same as the pre-configured home network equivalent home SID, and the read NID is equal to 0.

Correspondingly, the present invention also provides a mobile terminal with machine-card separation, which is applied in a code division multiple access system, including:

The reading module is used to read any parameter or any parameter in the operator name (SPN), home system identification code (SID) and network identification code (NID) from the removable subscriber identification module (RUIM) card combination;

The comparison module is used to compare the parameters read by the reading module with the pre-configured locking conditions, and enter the mobile phone locked state when the locking conditions are met.

further,

The locking condition for comparison by the comparison module includes: the read SPN value is different from the pre-configured SPN value.

further,

The locking condition for comparison by the comparison module includes: the value of the read-out first preset digit in the SPN is different from the value of the first same digit in the pre-configured SPN.

further,

The locking condition compared by the comparison module further includes: the read attribution SID is different from the pre-configured attribution SID of the local network, and is not equal to the value of the equivalent attribution SID of the local network.

further,

The locking condition compared by the comparison module further includes: the read attribution SID is the same as the pre-configured home network equivalent attribution SID, and the value of the read NID is equal to 0.

Compared with the prior art, the present invention reduces the difficulty of software development, and improves the compatibility of the system, without causing the embarrassment of upgrading the mobile phones delivered in large quantities after the sale due to the upgrading of the MIN section by the bureau.

Description of drawings

Fig. 1 is a flow chart of a method for locking the network of a mobile terminal with machine-card separation in an embodiment of the present invention;

Fig. 2 is a schematic diagram of a network locking process in an embodiment of the present invention;

FIG. 3 is a schematic diagram of another network locking process in an embodiment of the present invention;

Detailed ways

In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

As shown in Figure 1, this embodiment mainly reads the parameters in the RUIM card (including: SPN (Service Provider Name, operator name), SID (System Identification, system identification code), NID ( Network Identification, network identification code) in any one or any combination), and then compare the extracted parameters with the pre-configured locking conditions, and enter the mobile phone locking state when the locking conditions are met, so as to realize Lock network function.

During specific implementation, the above-mentioned deadlock conditions include: the read SPN value is not the same as the pre-configured SPN value; The configured SPNs have different values of the first identical digits; it may further include: the read home SID is different from the pre-configured home SID of this network, and is not equal to the value of the equivalent home SID of this network; it may also include: The read home SID is the same as the pre-configured home network equivalent home SID, and the read NID value is equal to 0.

The parameters that the mobile terminal needs to read from the RUIM card include SPN, SID and NID, but are not limited to these three parameters, and also include IMSI (International Mobile Subscriber Identification Number, International Mobile Subscriber Identification Number), ICCID (Integrate circuit card identity, integrated circuit card identification code), MCC (MobileCountry Code, mobile country code), MNC (Mobile Network Code, mobile network number) and other parameters.

SPN is the name of the operator on the RUIM card. It is written on the card when the card leaves the factory and cannot be changed;

Home SID is the number uniquely identifying a mobile service local network in a CDMA network. SID is allocated by province in the country;

NID is a number uniquely identifying a network in a mobile service local network, and can be used to distinguish different MSCs (Mobile Switching Center, mobile switching center). A mobile station can identify a network by a group (SID NID).

The above method will be further described below in conjunction with the accompanying drawings.

In this embodiment, as shown in FIG. 2, the processing method for implementing network lock specifically includes the following steps:

Step A. The user inserts the RUIM card into the mobile phone;

Step B. The mobile phone reads the SPN value in the EF6F41 file of the RUIM card;

Step C. Compare and judge the SPN value read from the RUIM card with the name of the network to be locked (for example, the name of the network to be locked: MTS). If the two are found to be consistent, then perform step E, otherwise, perform step D;

Step D. The mobile phone stops searching the network and prompts the user "invalid RUIM card" on the interface. In this state, the user is only allowed to make emergency calls, and the user is not allowed to perform other operations, that is, the mobile phone enters the locked state and ends;

Step E. The mobile phone reads the Home SID value in the EF6F28 file of the RUIM card;

Step F. If the mobile phone judges that the Home SID value read is equal to the home SID value of the network (such as 14555), it is allowed to register with the network and execute step J, otherwise execute step G;

Step G. Determine whether the Home SID value is equal to the equivalent Home SID value of this network (such as 14844), if so, perform step H, otherwise perform step D;

Step H. Read the NID value from the EF6F28 file in RUIM;

Step 1. judge whether the read NID value is 0, if it is 0 then execute step D, otherwise execute step J;

Step J. The mobile phone is registered to the network and can be used normally, and the process ends.

Among them, the above steps of verifying SPN and Home SID NID can be reversed, that is, another processing method for implementing network lock, as shown in Figure 3, including the following steps:

Step A. The user inserts the RUIM card into the mobile phone;

Step B. The mobile phone reads the Home SID value in the EF6F28 file of the RUIM card;

Step C. If the mobile phone determines that the Home SID value read is equal to the Home SID value of the network (such as 14555), then execute step F, otherwise execute step D;

Step D. Determine whether the Home SID value is equal to the equivalent Home SID value of this network (such as 14844), if so, perform step E, otherwise perform step H;

Step E. Read the NID value from the EF6F28 file in RUIM;

Step 1. judge whether the read NID value is 0, if it is 0 then execute step H, otherwise execute step F;

Step F. The mobile phone reads the SPN value in the EF6F41 file of the RUIM card;

Step G. Compare and judge the SPN value read from the RUIM card with the name of the network to be locked (for example, the name of the network to be locked: MTS). If the two are found to be consistent, then perform step I, otherwise, perform step H;

Step H. The mobile phone stops searching the network and prompts the user "invalid RUIM card" on the interface. In this state, the user is only allowed to make emergency calls, and the user is not allowed to perform other operations. End;

Step I. The mobile phone is registered to the network and can be used normally, and the process ends.

The network locking method of the present invention will be described below.

After the mobile phone is turned on and the RUIM card is initialized, the mobile phone reads the EF6F41 file in the card through the RUIM card interface function to obtain the SPN (such as "MTS Telecom"), and then only extracts the SPN or the previous preset digits in the SPN ( Such as the first three digits), and compared with the SPN of the locked network (assuming the SPN of the locked network is "MTS"), if the first three letters of the SPN read from the card are different from the SPN of the known locked network , that is, the first three digits of the SPN in the card are not "MTS", then the mobile phone will immediately execute the SIM card locking procedure and enter the locked state, that is, the user can only use the mobile phone to make emergency calls and cannot perform normal operations;

On the contrary, if the two are the same, then the mobile phone will further read the HomeSID and/or NID from the EF6F28 file in the SIM card, and then compare the read Home SID with the Home SID known to be locked, including:

If the read Home SID is the same as the Home SID to lock the network, the phone enters the normal state;

If the read Home SID is not the same as the Home SID to lock the network, then judge whether the read Home SID is equal to 14844, if the Home SID obtained from the SIM card is not equal to 14844, the phone enters the locked state; If it is equal to 14844, read the NID in the EF6F28 file, if the read NID is 0, enter the locked state, otherwise enter the normal state, and the whole process ends.

The above steps of verifying the SPN, Home SID, and NID can be reversed.

Correspondingly, in this embodiment, a machine-card separation mobile terminal is applied to a code division multiple access system, including:

The reading module is used to read any parameter or any parameter in the operator name (SPN), home system identification code (SID) and network identification code (NID) from the removable subscriber identification module (RUIM) card combination;

The comparison module is used to compare the parameters read by the reading module with the pre-configured locking conditions, and enter the mobile phone locked state when the locking conditions are met.

Preferably,

The locking condition for comparison by the comparison module includes: the read SPN value is different from the pre-configured SPN value.

Preferably,

The locking condition for comparison by the comparison module includes: the value of the read-out first preset digit in the SPN is different from the value of the first same digit in the pre-configured SPN.

Preferably,

The locking condition compared by the comparison module further includes: the read attribution SID is different from the pre-configured attribution SID of the local network, and is not equal to the value of the equivalent attribution SID of the local network.

Preferably,

The locking condition compared by the comparison module further includes: the read attribution SID is the same as the pre-configured home network equivalent attribution SID, and the value of the read NID is equal to 0.

Those skilled in the art can understand that all or part of the steps in the above method can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a magnetic disk or an optical disk, and the like. Optionally, all or part of the steps in the foregoing embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the foregoing embodiments may be implemented in the form of hardware, or may be implemented in the form of software function modules. The present invention is not limited to any specific combination of hardware and software.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. According to the content of the present invention, there can also be other various embodiments. Those skilled in the art can make various corresponding changes and deformations according to the present invention without departing from the spirit and essence of the present invention. Within the spirit and principles of the present invention, any modifications, equivalent replacements, improvements, etc., shall be included within the protection scope of the present invention.

Claims (2)

1. A method for locking the network of a machine-card separation mobile terminal, applied in a code division multiple access system, comprising: The mobile terminal reads any one or any combination of the operator name (SPN), home system identification code (SID) and network identification code (NID) from the removable subscriber identification module (RUIM) card, and the pre-configured lock Compare the dead conditions, and enter the locked state of the mobile phone if the locked conditions are met; The locking condition includes: the value of the previous preset digit in the read SPN is different from the value of the same preceding digit in the preconfigured SPN; The locking condition also includes: the read attribution SID is different from the pre-configured attribution SID of the local network, and is not equal to the value of the equivalent attribution SID of the local network; The locking condition further includes: the read home SID is the same as the pre-configured home network equivalent home SID, and the read NID is equal to 0. 2. A machine-card separation mobile terminal, applied in a code division multiple access system, comprising: The reading module is used to read any parameter or any parameter in the operator name (SPN), home system identification code (SID) and network identification code (NID) from the removable subscriber identification module (RUIM) card combination; The comparison module is used to compare the parameters read by the reading module with the pre-configured locking conditions, and enter the mobile phone locking state when the locking conditions are met; The locking condition compared by the comparison module includes: the value of the previous preset digit in the read SPN is different from the value of the same preceding digit in the preconfigured SPN; The locking condition compared by the comparison module also includes: the read attribution SID is different from the pre-configured attribution SID of this network, and is not equal to the value of the equivalent attribution SID of this network; The locking condition compared by the comparison module further includes: the read attribution SID is the same as the pre-configured home network equivalent attribution SID, and the value of the read NID is equal to 0.