CN101835091B - Judging method for legally using mobile terminal, device and mobile terminal - Google Patents

Abstract

The embodiments of the present invention relate to a judging method, device and mobile terminal for legally using a mobile terminal. The judging method for the legal use of the mobile terminal includes: when the mobile terminal initiates a location update message or a call request message, obtaining the first area code of the mobile terminal from the location update message or the call request message; obtaining the geographical location of the mobile terminal through the global positioning system; The coordinate data of the position; according to the coordinate data, search the corresponding second area code in the mapping table stored in advance in the mobile terminal, and the corresponding relationship between the coordinate data and the area code is stored in the mapping table; the first area code, the second area code The area codes are respectively compared with the legal area codes pre-stored in the mobile terminal to determine whether the mobile terminal is used legally. The judging method, device and mobile terminal for legal use of the mobile terminal in the embodiments of the present invention can determine whether the mobile terminal is used within the range allowed by the seller or manufacturer.

Description

Judgment method, device and mobile terminal for legal use of mobile terminal

technical field

The invention relates to the technical field of mobile communication, in particular to a judging method, device and mobile terminal for legally using a mobile terminal.

Background technique

At present, in the sales of mobile terminals, there are many cross-selling and parallel imports, which refer to sending from one area to another for sale. However, manufacturers of mobile terminals want to control where the mobile terminals are sold, that is, use-limited regions, to better manage the mobile terminals they produce, and to seek to maximize profits.

At present, one solution is that the operator's customized terminal or subsidized terminal can restrict the usage area of the mobile terminal through a SIM card lock. The SIM card lock is to establish a locking relationship between the SIM card and the mobile terminal, and the mobile terminal only allows a specific SIM card to be used. SIM card locks are divided into different lock levels: Network Control Key (NCK for short), Service Provider Control Key (SPCK for short), etc. The basic principle is to establish a link between the SIM card and the mobile terminal. The matching relationship between them, so that the illegal SIM card cannot be used on the mobile terminal through the detection at the time of starting up. However, at present, the SIM card lock is only related to the operator, is only valid for customized terminals, and is relatively easy to crack.

Contents of the invention

The purpose of the embodiment of the present invention is to provide a judging method, device and mobile terminal for legal use of a mobile terminal, so as to determine whether the mobile terminal is used within the range allowed by the seller or manufacturer.

The embodiment of the present invention provides a method for judging the legal use of a mobile terminal, including:

When the mobile terminal initiates a location update message or a call request message, obtain the first area code of the mobile terminal from the location update message or the call request message;

Obtaining the coordinate data of the geographic location of the mobile terminal through a global positioning system;

According to the coordinate data, look up the corresponding second area code in the mapping table stored in advance by the mobile terminal, and the corresponding relationship between the coordinate data and the area code is stored in the mapping table;

Comparing the first area code and the second area code with legal area codes pre-stored in the mobile terminal respectively, judging whether the mobile terminal is legally used.

The embodiment of the present invention also provides a judging device for legal use of a mobile terminal, including:

A first acquiring module, configured to acquire the first area code of the mobile terminal from the location update message or the call request message when the mobile terminal initiates a location update message or a call request message;

The second obtaining module is used to obtain the coordinate data of the geographical location of the mobile terminal through the global positioning system;

A search module, configured to search for a corresponding second area code in a pre-saved mapping table of the mobile terminal according to the coordinate data acquired by the second acquisition module, where coordinate data and area codes are stored in the mapping table corresponding relationship;

A judging module, configured to compare the first area code acquired by the first acquisition module and the second area code found by the search module with legal area codes pre-stored in the mobile terminal, and determine whether legal use of said mobile terminal.

An embodiment of the present invention also provides a mobile terminal, including the judging device for legal use of the mobile terminal as described above.

It can be known from the above technical solutions that the method, device and mobile terminal for judging the legal use of a mobile terminal in the embodiments of the present invention determine the area code acquired by the mobile terminal each time the mobile terminal initiates a location update or call request, thereby determining the area code of the mobile terminal. Whether the mobile terminal is used within the range allowed by the seller or manufacturer, which can avoid the existing SIM card lock that can only be detected when it is turned on and is only related to the operator, only valid for customized terminals, and relatively easy to crack Defects.

Description of drawings

FIG. 1 is a schematic flow diagram of a first embodiment of a method for judging legal use of a mobile terminal according to the present invention;

FIG. 2 is a schematic flowchart of a second embodiment of a method for judging legal use of a mobile terminal according to the present invention;

Fig. 3 is a schematic diagram of rectangular area segmentation in the present invention;

FIG. 4 is a schematic structural diagram of a first embodiment of a judging device for legally using a mobile terminal according to the present invention;

FIG. 5 is a schematic structural diagram of a second embodiment of the apparatus for judging the legal use of a mobile terminal according to the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

With the maturity of the manufacturing technology of mobile terminals, there are more and more mobile terminals supporting Global Positioning System (GPS for short)/Assisted Global Positioning System (AGPS for short). The technical solution is to obtain an area code when the mobile terminal initiates a location update or a call request, and then find another corresponding area code when acquiring coordinate data from GPS, and compare the two area codes with the mobile terminal respectively. The stored legal area codes are compared to determine whether the mobile terminal is legally used, that is, whether it is used in the area allowed by the independent seller or the manufacturer.

FIG. 1 is a schematic flowchart of a first embodiment of a method for judging legal use of a mobile terminal according to the present invention. As shown in Figure 1, it includes the following steps:

Step 101. When a mobile terminal initiates a location update message or a call request message, acquire the first area code of the mobile terminal from the location update message or call request message.

The first area code may be a country code of a different country, or an area code of a country divided into different areas, or other division rules, which are specified according to the requirements of the seller or the manufacturer. For example: the setup message in the call request message contains the International Mobile Subscriber Identity (IMSI) code, and the first 3 digits of the IMSI code are obtained from the message, that is, the country code, such as China is 460 .

Step 102, acquiring the coordinate data of the geographic location of the mobile terminal through the global positioning system.

Through message interaction between the mobile terminal and the Global Positioning System (GPS/AGPS), the coordinate data of the geographic location of the mobile terminal is acquired.

Step 103, according to the coordinate data, look up the corresponding second area code in the mapping table stored in advance by the mobile terminal.

A mapping table is stored in the mobile terminal, wherein the corresponding relationship between the coordinate data and the area code is stored, that is, the second area code corresponding to the coordinate data can be found from the mapping table. The second area code may be a country code of a different country, or an area code of a different area divided in a country, or other division rules, which are specified according to the requirements of the seller or the manufacturer.

Step 104: Compare the first area code and the second area code with legal area codes pre-stored in the mobile terminal, and determine whether the mobile terminal is used legally.

For example, if a seller or manufacturer wants to distinguish the legality of using a mobile terminal according to different countries, then the country code obtained when the mobile terminal initiates a location update or a call request can be used as the first area code, and the country code of the country where the mobile terminal is located can be used as the first area code. The country code is used as the second area code, and as long as one of the first area code and the second area code belongs to the legal area code stored in the mobile terminal, it can be determined that the mobile terminal is legally used.

The method for judging the legal use of a mobile terminal provided in this embodiment is to determine whether the mobile terminal is permitted by the seller or manufacturer by judging the area code acquired by the mobile terminal each time the mobile terminal initiates a location update or call request. Use within the range of mobile terminal use. The method can avoid the defects that the existing SIM card lock can only be detected when starting up, is only related to operators, is only valid for customized terminals, and is relatively easy to crack.

FIG. 2 is a schematic flowchart of a second embodiment of the judging method for legal use of a mobile terminal according to the present invention. As shown in Figure 2, it includes the following steps:

Step 201, write the legal area code in the non-erasable area of the mobile terminal.

The legal region code is written into the non-erasable area of the mobile terminal, and the legal region code may use a country (region) code, for example, a country (region) code defined by E.212 or E.164.

Step 202, when the mobile terminal initiates a location update message or a call request message, obtain the first area code of the mobile terminal from the location update message or the call request message.

The first area code is the same type of area code as the legal area code written in the mobile terminal in the previous step 201 .

Step 203, acquire the coordinate data of the geographic location of the mobile terminal through the global positioning system.

Through message interaction between the mobile terminal and the Global Positioning System (GPS/AGPS), the coordinate data of the geographic location of the mobile terminal is acquired.

Step 204, according to the acquired coordinate data, look up the corresponding second area code in the mapping table stored in advance in the mobile terminal.

A mapping table is stored in the mobile terminal, wherein the corresponding relationship between the coordinate data and the area code is stored, that is, the second area code corresponding to the coordinate data can be found from the mapping table. The second area code is also the same type of area code as the legal area code written in the mobile terminal in step 201 .

For example, the correspondence between the coordinate data and the area code may be realized by using the correspondence between the rectangular area where the coordinate data is located and the area code. Specifically, for example, a rectangle is used to divide the entire area. Fig. 3 is the schematic diagram of rectangular region segmentation of the present invention, as shown in Fig. 3, can use a plurality of rectangles to carry out segmentation on this map region, at first select the region on the map that the largest rectangle covers in the region, for the region that is not covered , you can use a small rectangle to supplement it. It doesn’t need to be too precise, just make sure to cover more than 100% of the area, and it is allowed to exceed the area where the country border is located on the map. The basic principle is: to cover more than 100% of the area, and to make the mobile terminal unusable in more than 90% of the illegal area; because of the rectangular division, some illegal areas are also included in the legal area, so that the mobile terminal can It can't be used in most illegal areas. At this time, only the corresponding relationship between the range of the rectangular area and the area code needs to be saved in the mapping table, which can save the storage space of the mobile terminal. When the coordinate data of the mobile terminal falls within the range of each rectangle, the corresponding area code can be found. Of course, circles or other regular or irregular geometric figures may also be used to divide corresponding regions. Or, by building a map in the mobile terminal, the corresponding relationship between the coordinate data and the area code can be obtained.

Step 205, compare the first area code and the second area code with the legal area codes pre-stored in the mobile terminal respectively, and when the first area code is the same as the legal area code, or the second area code is the same as the legal area code, determine For legal use of mobile terminals.

For example: when the first area code is the same as the legal area code, it means that the operator of the mobile terminal is legal, that is, the mobile terminal designated by the operator; when the second area code is the same as the legal area code, that is Indicates that the mobile terminal is legal to use in the allowed area of use.

The method for judging the legal use of a mobile terminal provided in this embodiment is to determine whether the mobile terminal is permitted by the seller or manufacturer by judging the area code acquired by the mobile terminal each time the mobile terminal initiates a location update or call request. Use within the range of mobile terminal use. The method can avoid the defects that the existing SIM card lock can only be detected when starting up, is only related to operators, is only valid for customized terminals, and is relatively easy to crack.

FIG. 4 is a schematic structural diagram of a first embodiment of a judging device for legal use of a mobile terminal according to the present invention. As shown in FIG. 4 , the device includes: a first obtaining module 41 , a second obtaining module 42 , a searching module 43 and a judging module 44 . Wherein, when the mobile terminal initiates a location update message or a call request message, the first obtaining module 41 obtains the first area code of the mobile terminal from the location update message or the call request message; the second obtaining module 42 obtains the first area code through the global positioning system The coordinate data of the geographical location of the mobile terminal; the search module 43 searches the corresponding second area code in the mapping table stored in advance according to the coordinate data acquired by the second acquisition module 42, and the mapping The corresponding relationship between the coordinate data and the area code is stored in the table; the judgment module 44 compares the first area code obtained by the first acquisition module 41 and the second area code found by the search module 43 with the mobile terminal respectively. Compared with the legal area codes pre-stored in the mobile terminal, it is judged whether the mobile terminal is legally used.

For the judging method for legally using a mobile terminal implemented by the device for judging legally using a mobile terminal provided in this embodiment, please refer to the description in the above-mentioned method embodiment for details. The area code acquired by the mobile terminal is judged to determine whether the mobile terminal is used within the range allowed by the seller or manufacturer. The method can avoid the defects that the existing SIM card lock can only be detected when starting up, is only related to operators, is only valid for customized terminals, and is relatively easy to crack.

FIG. 5 is a schematic structural diagram of a second embodiment of the apparatus for judging the legal use of a mobile terminal according to the present invention. As shown in FIG. 5 , the device includes: a first obtaining module 51 , a second obtaining module 52 , a searching module 53 and a judging module 54 . Wherein, the first acquisition module 51, the second acquisition module 52, the search module 53 and the judgment module 54 are the same as the first acquisition module 41, the second acquisition module 42, the search module in the first embodiment of the judging device for legally using a mobile terminal. 43 has the same function as the judging module 44, and will not be repeated here. The judging device for legal use of the mobile terminal also includes: a writing module 55, configured to write the legal area code in the non-erasable area of the mobile terminal, for the judging module 54 to make a judgment. The judgment module 54 may specifically include: a comparison submodule 541 and a determination submodule 542 . The comparison sub-module 541 compares the first area code and the second area code with the legal area code pre-stored in the mobile terminal respectively; when the comparison result of the comparison sub-module 541 is that the first area code and the legal area code When the area codes are the same, or the second area code is the same as the legal area code, the determining submodule 542 determines that the mobile terminal is legally used.

For the judging method for legally using a mobile terminal implemented by the device for judging legally using a mobile terminal provided in this embodiment, please refer to the description in the above-mentioned method embodiment for details. The area code acquired by the mobile terminal is judged to determine whether the mobile terminal is used within the range allowed by the seller or manufacturer. The method can avoid the defects that the existing SIM card lock can only be detected when starting up, is only related to operators, is only valid for customized terminals, and is relatively easy to crack.

In addition, an embodiment of the present invention also provides a mobile terminal, which includes the above-mentioned first embodiment of the judging device for legal use of a mobile terminal as shown in Figure 4 or the second embodiment of the judging device for legal use of a mobile terminal as shown in Figure 5 The judging means of the legal use of the mobile terminal is described.

The mobile terminal provided in this embodiment determines whether the mobile terminal is within the range allowed by the seller or manufacturer by judging the area code acquired by the mobile terminal each time the mobile terminal initiates a location update or call request used within. The method can avoid the defects that the existing SIM card lock can only be detected when starting up, is only related to operators, is only valid for customized terminals, and is relatively easy to crack.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented through computer programs to instruct related hardware, and the programs can be stored in a computer-accessible storage medium. During execution, it may include the processes of the embodiments of the above-mentioned methods. Wherein, the storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM) or a random access memory (Random Access Memory, RAM), etc.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (5)

1. A judging method for legally using a mobile terminal, characterized in that, comprising: When the mobile terminal initiates a location update message or a call request message, obtain the first area code of the mobile terminal from the location update message or the call request message; Obtaining the coordinate data of the geographic location of the mobile terminal through a global positioning system; According to the coordinate data, look up the corresponding second area code in the mapping table stored in advance by the mobile terminal, and the corresponding relationship between the coordinate data and the area code is stored in the mapping table; Comparing the first area code and the second area code with legal area codes pre-stored in the mobile terminal respectively, and judging whether the mobile terminal is legally used; Wherein, the corresponding relationship between the coordinate data and the area code is: The corresponding relationship between the rectangular area where the coordinate data is located and the area code, the rectangular area is obtained by rectangularly dividing the entire area; or By building a map in the mobile terminal, the corresponding relationship between the coordinate data and the area code is obtained; Comparing the first area code and the second area code with the legal area codes pre-stored in the mobile terminal respectively, and judging whether the mobile terminal is legally used, specifically: Comparing the first area code and the second area code with legal area codes pre-stored in the mobile terminal; When the first area code is the same as the legal area code, or the second area code is the same as the legal area code, it is determined that the mobile terminal is legally used. 2. The method according to claim 1, further comprising: Writing the legal area code in the non-erasable area of the mobile terminal. 3. A judging device for legal use of a mobile terminal, characterized in that it comprises: A first acquiring module, configured to acquire the first area code of the mobile terminal from the location update message or the call request message when the mobile terminal initiates a location update message or a call request message; The second obtaining module is used to obtain the coordinate data of the geographical location of the mobile terminal through the global positioning system; A search module, configured to search for a corresponding second area code in a pre-saved mapping table of the mobile terminal according to the coordinate data acquired by the second acquisition module, where coordinate data and area codes are stored in the mapping table The corresponding relationship between the coordinate data and the area code is: The corresponding relationship between the rectangular area where the coordinate data is located and the area code, the rectangular area is obtained by rectangularly dividing the entire area; or By building a map in the mobile terminal, the corresponding relationship between the coordinate data and the area code is obtained; A judging module, configured to compare the first area code acquired by the first acquisition module and the second area code found by the search module with legal area codes pre-stored in the mobile terminal, and determine whether lawful use of said mobile terminal; The judgment module includes: The comparison submodule is used to compare the first area code and the second area code with legal area codes pre-stored in the mobile terminal respectively; A determination submodule, configured to determine that it is legal to use when the comparison result of the comparison submodule is that the first region code is the same as the legal region code, or the second region code is the same as the legal region code the mobile terminal. 4. The device according to claim 3, further comprising: The writing module is used for writing the legal area code in the non-erasable area of the mobile terminal. 5. A mobile terminal, characterized by comprising the judging device for legal use of the mobile terminal as claimed in claim 3 or 4.

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