CN100378663C - Method, system and module for dynamically downloading application program to subscriber identity module - Google Patents

Abstract

The invention discloses a method, a system and a user identification module supporting the method for dynamically downloading an application program to the user identification module, wherein an application service server forms a plurality of data by machine codes of the application program to be downloaded and sends the data to the user identification module; the monitoring module of the user identification module identifies the received application program data and then delivers the application program data to the application program management module, and the module writes the program code in the application program data into a memory in the module and stores the information of the program identification and the program code address; and when the application program is called, the storage address of the program code is obtained according to the program identification, and then the program is executed. The method of the invention can dynamically download the program code to the user identification module in the form of machine code, and call and delete the program on the user identification module.

Description

Method, system and module for dynamically downloading application program to subscriber identity module

technical field

The present invention relates to the program downloading of the smart card, more specifically, to the dynamic program downloading method and system of the user identification module and the user identification module supporting the method.

Background technique

The emergence of over-the-air technology (OTA) enables subscriber identification modules such as SIM cards and UIM cards to dynamically download the latest menus from servers, and has become an important means to provide users with new value-added services. However, the realization of some value-added services also needs to run the corresponding application program on the user identification module, and the dynamic download of the application program to the user identification module cannot be realized at present, which brings inconvenience to the promotion of some value-added services.

Contents of the invention

The technical problem to be solved by the present invention is to provide a method for dynamically downloading the application program to the user identification module, which can dynamically download the program code to the user identification module in the form of machine code, and call and delete the program on the user identification module . The invention also provides a system for realizing the method and a subscriber identification module supporting the method.

In order to solve the above technical problems, the present invention provides a method for dynamically downloading an application program to a subscriber identification module, comprising the following steps:

(a) the application service server forms several pieces of data with the machine code of the application program to be downloaded, and sends it to the user identification module;

(b) After the user identification module receives the data of the application program, write the program code therein into the memory in the module, and save the program identification and the information of the program code address;

(c) When the application program is to be called, first obtain the starting address of the program code according to the program identification, and execute the program.

Further, the above method may also have the following features: it also includes the step: (d) when the application program is to be deleted, delete the saved information related to the program.

Further, the above method may also have the following features: in step (a), the application service server sends the application program code to the subscriber identification module in a wireless manner, or the application service server sends the application program code to the user identification module by writing The terminal processing module sends the application program code to the user identification module by calling the card writing component function.

Further, the above method may also have the following features: the application service server sends the application program code to the user identification module in the form of a data message through a message channel.

Furthermore, the above method may also have the following features: in step (b), after the program code is written, the initialization function entry of the program code is called to register the program in the operating system.

Further, the above method may also have the following features: in step (d), the program to be deleted is de-registered in the operating system first, and then its related information is deleted.

Further, the above method may also have the following features: the address of the application program code is stored in the form of a logical range linked list of the program in the file allocation table, and the corresponding relationship between the first address of the logical range linked list and the program identifier is stored in In the file registry, the user identification module can find the first address of the program's logical range linked list according to the program identification, and then calculate the starting address of the program code and find the program's logical range linked list.

Further, the above method can also have the following characteristics: when downloading and deleting a program, it also records the status information of whether the download and deletion of the program is completed, and the step (b) first clears the programs that have not been successfully downloaded and deleted, and then Judging whether there is enough remaining space, if so, then write the program code into the corresponding storage location, if the space is insufficient, stop the download and end.

Further, the above method may also have the following features: the program code is stored in a dynamically specified logical partition of the memory, and when data is written in the partition, it is set to the data state, and after the download is completed, Make it programmatic so that it can be called directly.

Further, the above method may also have the following characteristics: the program code and the file allocation table are stored in dynamically specified logical partitions, and before each program code is written or the file allocation table is rewritten, its corresponding logical partition Set it to the data state, and after the writing is completed, set its corresponding logical partition to the program state.

Furthermore, the above-mentioned method may also have the following characteristics: in the step (c), before invoking the application program, the environment in which the current program is running is maintained first, and after the invocation ends, the program environment before invocation is restored.

The user identification module supporting the method provided by the present invention includes a monitoring module and a storage module, and is characterized in that it also includes an application program management module, wherein:

The monitoring module is used to monitor the received data to determine whether it is the machine code data of the downloaded application program, and if so, hand it over to the application program management module for processing;

The storage module is divided into several logical partitions, and is used to store the program identification, program code address information and program code data of the downloaded application program;

The application management module further includes:

The download control unit is used to write the program code in the storage module after receiving the downloaded application program data, and save the program identification and the address information of the program code;

The calling control unit is used to obtain the starting address of the program code according to the program identification when the application program is to be called.

Further, the above-mentioned user identification module may also have the following features: the application program management module further includes: a deletion control unit, configured to find the stored program code address information according to its program identification when the application program is to be deleted, and Information related to this program is deleted.

Further, the above-mentioned user identification module can also have the following characteristics: it also includes a storage management module, which is used to control the access rights of the logical partitions on the storage module, and it is necessary to write the program during the downloading, calling and deleting of the application When the code data is used, the partition where it is located is set to the data state, and when the program code is to be executed, the partition where it is located is set to the program state.

Further, the above-mentioned user identification module may also have the following features: the download control unit stores the address information of the program code in the file allocation table in the form of a logical interval linked list, and saves the program identifier and the corresponding first address of the logical interval linked list In the file registration table, the call control unit and the deletion control unit find the first address of the logical interval linked list according to the program identification, and then calculate the starting address of the program code and find the logical interval linked list of the program.

Further, the above-mentioned user identification module may also have the following features: the download control unit also registers the program in the operating system after the program code is written; the deletion control unit, before deleting the information of the program, Complete the anti-registration of the program in the operating system first.

The system provided by the present invention for realizing the dynamic download of programs to the user identification module includes an application service server and a user identification module communicating with it, wherein:

The application service server includes an application service data management module and a communication processing module. The application service data management module is used to save the machine code data of the application program. A communication processing module; the communication processing module is used to receive the user's download application, hand it over to the application business data management module, and send the organized application program code data to the user identification module applying for download;

The user identification module further includes a monitoring module, a storage module and an application program management module, wherein:

The monitoring module is used to monitor the received data to determine whether it is the machine code data of the downloaded application program, and if so, hand it over to the application program management module for processing;

The storage module is divided into several logical partitions for storing the program identification, program code address information and program code data of the downloaded application program;

The application program management module further includes: a download control unit, configured to write the program code in the received application program data into the storage module when the remaining space is sufficient, and save the program identification and the address information of the program code; The calling control unit is used to obtain the starting address of the program code according to the program identification, and executes the application program; the deletion control unit is used to delete the stored relevant information of the application program.

Further, the above-mentioned system can also have the following characteristics: the communication processing module further includes a receiving unit and a sending unit, the receiving unit is used to receive the short message sent from the short message gateway, recognize the application for downloading the application program, and send the user The mobile phone number and the application program information to be downloaded are notified to the application service data management module, and the sending unit is used to add the status word to each piece of data organized, and send it to the user identification module through the short message gateway according to the data short message mode .

Further, the above-mentioned system may also have the following features: it also includes a card writing terminal processing module, which uses a function calling method of the card writing component to transmit the application program code to the user identification module.

Further, the above system can also have the following features: the user identification module also includes a storage management module, which is used to control the access rights of the logical partitions on the storage module. When program code data is written, the partition where it is located is set to the data state, and when the program code is to be executed, the partition where it is located is set to the program state.

To sum up, by adopting the present invention, the machine code of the application program can be dynamically downloaded to the user identification module, and the function of calling and deleting can be realized. Moreover, the content downloaded to the user identification module in the present invention is the machine code data that does not need to be interpreted and executed. When calling, it only needs to find the program entry to call directly, without further explaining work, and the running speed is very fast. Moreover, the downloaded program can not only be used as the data that the system needs to maintain, but also can be used as the expansion of the underlying operating system.

Furthermore, through the dynamic designation of the storage area, the partition where the program code is located can be set to the data state when writing data, and set to the program state when executing, and the download and call of the application program can be realized with a simple hardware design.

Description of drawings

Fig. 1 is a system diagram for realizing the dynamic downloading of programs to the subscriber identification module according to the embodiment of the present invention.

Fig. 2 is a structural block diagram of the user identification module of the embodiment of the present invention.

Fig. 3 is a flowchart of method downloading and program code storage in an embodiment of the present invention.

Fig. 4 is a flowchart of calling a downloaded program by a method according to an embodiment of the present invention.

Fig. 5 is a flowchart of a method for deleting a download program according to an embodiment of the present invention.

Detailed ways

first embodiment

In this embodiment, the system based on the method for dynamically downloading the application program to the subscriber identification module is as shown in Figure 1, and is composed of an application service server and a SIM card interacting with the server through a short message channel (the transparent transmission of the short message is completed by the mobile phone) .

The main related modules on the application business server include:

The application service management module is used for the development and management of new application services, system management, and SIM card information maintenance.

The application business data management module is used to save the machine code data of the application program. After receiving the application from the user, organize the data into several pieces of data according to the specified format and send them to the communication processing module. The content of each piece of data includes: the total size of the data , the total number of data items, the index value of this item of data, the content of this item of data, the length of this item of data, and the offset of this item of data in the total data.

The communication processing module is used to complete functions such as data reception, data distribution and data transmission between the application service server and the short message gateway. It further includes a receiving unit, used to receive the short message sent from the short message gateway, recognize the application for downloading the application program, and notify the application service data management module of the user's mobile phone number and the application program information to be downloaded; and the sending unit, with Add the status word to each piece of organized data, and send it to the SIM card through the short message gateway in the form of a data short message.

The SIM card that this embodiment supports dynamic program downloading adopts a kind of IC smart card (can refer to the applicant's patent application: 03137511.1) that has a plurality of logical partitions and can control access authority, and this SIM card further includes monitoring module, application program management module, a storage module, and a storage management module located between the application program management module and the storage module, as shown in FIG. 2 .

The monitoring module is used to monitor the short message transparently transmitted from the mobile phone, and after identifying the download data of the application program according to the status word in the short message, it is handed over to the application program management module for processing;

The application program management module further includes a download control unit, a call control unit and a deletion control unit, wherein:

The download control unit is used to judge whether there is enough remaining space after receiving the downloaded data in the form of SMS, and if so, write the data to the corresponding storage location one by one, and save information such as the program identification and the starting address of the program code After the writing is completed, the program is registered in the system, and a logical interval linked list of the program code is established.

The calling control unit is used to find the corresponding record in the file registration table according to the program identification, obtain the first address of the logical interval linked list of the program, then calculate the starting address of the program code according to the address, modify the program pointer, and then execute the program.

The deletion control unit is used to perform the anti-registration of the program to be deleted first, find the corresponding record in the file registry according to its program identification, clear the linked list information corresponding to the file allocation area according to the first address of the logical interval linked list specified by the record, and finally delete it from the registration Delete the record from the table.

The storage module contains the operations that can be performed in downloading, calling, and deleting according to the application management module, and controls the access rights of these partitions. When writing data in a certain area, it is necessary to set the area to the data state (readable and writable), while When the program code of a certain area is to be executed, it is converted into a program state (readable).

In order to realize the management of the application program, the file system in the storage module includes a file registry, a file allocation table and program codes. Different from ordinary smart cards, in the process of program download and calling, the logical partition where the file allocation table and program code are located will have a data state and program state conversion, while the logical partition where the file registry area is always used as a data area.

The file allocation table is used to store the logical interval linked list of the application code, and the storage of the program code is saved through the addressing mode of the logical interval linked list, so as to realize the dynamic addition and deletion of code data.

The file registry is used to store information including the corresponding relationship between the program code and the first address of the logical interval linked list, the status of the download and delete process, and the like. Its structure is as follows:

byte describe length 1-3 Program ID 3 4 program status 1 5-6 The first address of the logical interval linked list 2

Among them, the program identification is three bytes, which is a sign to distinguish it from other programs. In the downloading process, a program status of 1 indicates that the download is started, and a status of 2 indicates that the download is completed. In the deletion process, the program status 2 means that the deletion has not started, and the status 1 means that the deletion has started but has not been completed. After the deletion is completed, the corresponding record in the registry will be cleared. The first address of the logical range linked list records the first address of the linked list established by the program data in the file allocation table. Knowing the identification of the program, the logical interval linked list of the program can be found through the registry, that is, the storage address of the program data can be calculated.

The method of this embodiment includes three aspects: downloading and program code storage process, code calling process and program code deletion process. The downloading is realized through the short message channel.

As shown in Figure 3, the process of downloading and program code storage includes the following steps:

Step 110, after receiving the download request, the application service server packs the program code into a data short message according to a prescribed format and adds a status word, and then sends it to the SIM card through the short message channel;

Step 120, after the SIM card receives the data note and recognizes that it is the downloaded program code according to the status word, it is first judged whether the note contains is the first download data (can be judged according to its index value), if yes, Execute the next step, otherwise execute step 170;

Step 130, search for the record in the program registry, if there is a record with status 1, execute step 140, if there is no record with status 1, execute step 150;

Step 140, first set the partition where the file allocation table is in the data state, clear the space of the corresponding program in the file allocation table according to the first address of the logical interval linked list in the record, and then set the partition where the file allocation table is in the program state, and delete said record in the file registry;

Steps 130 and 140 are used to clear programs that have not been successfully downloaded or deleted before searching for space. Because these programs may not be successfully downloaded and deleted due to power failure, but still occupy space in the file allocation table, delete these useless programs before searching for space to make full use of storage space.

Step 150, judging whether the remaining space in the SIM card is greater than the space required for program code storage, if greater, execute the next step, otherwise interrupt the download process and end;

Step 160, set the partition where the program code is located in the data state, write the content of the first piece of data to the start position of the remaining space, add a record in the registry after success, write the program identification of the program and the logical linked list The first address, the program state is recorded as 1, and returns to step 120;

Step 170, before writing data at every turn, the partition where the program code is located is set to the data state, and the content of this piece of data is written to the corresponding position of the data space (i.e. the free cluster found) according to the offset and the length in the short message data, After writing, the partition where the program code is located is set to the program state;

Step 180, judging whether all the data has been downloaded according to the current short message index and the total number of short messages, if not, return to step 120, otherwise, perform the next step;

Step 190, calling the initialization function entry of the program code data, and registering the program, such as registering the files needed for program operation in the system, memory variables, etc., after the call is completed, the partition where the file allocation table is located is set to a data state;

Step 200, search the registry, change the program state from 1 to 2, and create a logical interval linked list of the application program code data in the file allocation table, set the partition where the file allocation table is in the program state, and end.

Among the above steps, step 190 is optional. In addition, the logical partitions where the file allocation table and the program code are located may be the same or different. Just ensure that the partition to be written is changed to the data state when writing, and after the download is completed, the partition where the program code is located is changed to the program state for calling.

Because the program code is placed into the program state after the download is completed. So if you know the starting address of the program data, you can run it directly. As shown in Figure 4, the calling process of the downloaded program includes the following steps:

Step 210, when calling the downloaded program, the SIM first saves the environment in which the program runs (such as stack information, interrupts, etc.);

Step 220, according to the program identifier, find the corresponding record in the record whose state is 2 in the registration form, and obtain the first address of the logical interval linked list of the program;

Step 230, calculate the starting address of the program data area according to the first address of the logical interval linked list, and start executing the downloaded program;

Step 240, after the call ends, restore the saved program running environment.

The process of deleting a program is opposite to that of downloading, as shown in Figure 5, the process of deleting a downloaded program includes the following steps:

Step 310, call the release function entry to delete the program code data, carry out the anti-registration process, and continue to the next step after completion;

Step 320, according to the identification of the program to be deleted, search for the corresponding record in the record whose status is 2 in the registry, and change the status of the program from 2 to 1 after finding it;

Step 330, modifying the partition where the file allocation table is located is set to a data state, and then clearing the linked list information corresponding to the file allocation area according to the first address of the logical interval linked list specified by the record;

Step 340, modify the partition where the file allocation table is located to be a program state, and then delete the record corresponding to the program from the registry.

second embodiment

Different from the downloading from the air channel in the first embodiment, the SIM card in this embodiment downloads data from the application service server through the card writing terminal processing module, as shown in the dotted line in FIG. 1 . In the system, the card writing terminal processing module is connected with the application business data management module of the application business server, and the application business data management module also packs the data of the application program, which can use the format of the first embodiment, and then send it to the card writing terminal for processing module.

The card writing terminal processing module is used to complete the data transmission between the server and the SIM card. It adopts the card writing component function calling method. Data retransmission, timeout and other issues are handled by this module. Parameters are passed to the card writing component. In this way, many security and anti-retransmission mechanisms in the SMS channel can be removed, more program data can be transmitted, and the transmission speed is faster.

The relevant modules in the SIM card in this embodiment also include a monitoring module, an application program management module and a storage module. Compared with the first embodiment, there is no storage management module, that is, no distinction is made between the program area and the data area. As long as the data of the program code can be found, the application program can also be executed. This storage method requires the hardware to be able to run program data at any location or to run programs in memory, so the implementation is more complicated, and the type of operation needs to be distinguished during access, which is relatively expensive.

The function of the monitoring module is the same as that of the first embodiment, and the basic functions to be completed by the application program management module are also the same, except that in this embodiment, the application program is stored in the form of an index file. The index includes: a program identifier and a file identifier, and the file identifier is found in the registry according to the program identifier. Then according to the file identification, the file address is found through the file system, and the file content is read. The content of the file is the program data, that is, the data of each program is stored in different files. Correspondingly, the application program management module of this embodiment includes:

The download control unit is used to judge whether there is enough remaining space after receiving the download data of the card writing component function call mode, and if so, create a file according to the total length of the program data recorded in the data, and write the corresponding data The corresponding position in the file, after the writing is completed, the program is registered in the system, and the program ID and file ID are recorded.

Call the control unit to find the corresponding record in the file registry according to the program identification, obtain the identification of the program data file, and read the content of the file through the file management system according to the identification. At this time, the content of the file is the program data , just execute this program directly.

The deletion control unit is used to unregister the program to be deleted first, find the corresponding record in the file registry according to its program identifier, delete the file saving the program data according to the file identifier specified by the record, and finally delete the record from the registry .

The download and program code storage process of the present embodiment are as follows: After the user identification module receives the download data of the card writing component function call mode, it is judged whether there is enough remaining space, and if there is, it is created according to the total length of the program data recorded in the data file, and write the corresponding data into the corresponding position in the file. After the writing is completed, the program is registered in the system, and the program ID and file ID are recorded.

The code calling process is as follows: when calling a downloaded application program, first save the running environment of the program; find the program data file ID in the file registry according to the program ID; read the content of the file through the file management system according to the ID, That is, the program data, and then modify the program pointer to execute the program; after the call is completed, restore the saved program operating environment.

The program code deletion process is as follows: find the corresponding record in the file registry according to the identifier of the deleted program; delete the file saving the program data according to the file identifier specified by the record; finally delete the record of the program from the registry.

Some technical means of the first embodiment and the second embodiment can be combined. For example, in another embodiment, the cluster chain method can be used to address the application code, but the data status and Program state conversion. As another example, program status information may also be added to the registry in the second embodiment, and programs that have not been successfully downloaded or deleted are cleared before finding the remaining space.

To sum up, by adopting the present invention, the machine code of the application program can be dynamically downloaded to the user identification module, and the function of calling and deleting can be realized. Moreover, the content downloaded to the user identification module in the present invention is machine code data that does not need to be interpreted and executed. When calling, it only needs to find the program entry to call directly, without further explaining work, and the running speed is very fast. Moreover, the downloaded program can not only be used as the data that the system needs to maintain, but also can be used as the expansion of the underlying operating system.

The present invention can be applied to various subscriber identification modules such as SIM and UIM.

Claims (20)

1. one kind with the method for application program dynamic download to subscriber identification module, may further comprise the steps:

(a) machine code of the application program that will download of applied business server is formed some data, sends to subscriber identification module;

(b) subscriber identification module is after receiving described application's data, and with the storer in the program code writing module wherein, and save routine identifies and the information of program code address;

(c) in the time of will calling described application program, obtain the start address of this program code earlier according to program identification, carry out this program.

2. the method for claim 1 is characterized in that, also comprises step: in the time of (d) will deleting described application program, with the described information deletion of preserving relevant with this program.

3. method as claimed in claim 1 or 2, it is characterized in that, in the step (a), described applied business server sends to described subscriber identification module by wireless mode with application code, perhaps, described applied business server is write card assembly function call mode by the employing of card writing terminal processing module application code is sent to described subscriber identification module.

4. method as claimed in claim 3 is characterized in that, described applied business server is in the mode of data SMS application code to be sent to described subscriber identification module by short message channel.

5. method as claimed in claim 1 or 2 is characterized in that, in the step (b), after described program code writes and finishes, goes back the initialization function entrance of calling program code, carries out the registration of program in operating system.

6. method as claimed in claim 2 is characterized in that, in the step (d), wants earlier the anti-registration of delete program in operating system, deletes its relevant information again.

7. method as claimed in claim 1 or 2, it is characterized in that, described application code address is to preserve with the lagic interval chained list mode of this program in the file allocation table, and the corresponding relation of the first location of this lagic interval chained list and this program identification is stored in the system registry, subscriber identification module can find the first location of the lagic interval chained list of program according to program identification, and then calculates the start address of program code and find the lagic interval chained list of this program.

8. method as claimed in claim 1 or 2, it is characterized in that, downloading and during delete program, also writing down the status information that this program is downloaded and whether deletion is finished, described step (b) is removed earlier and is not downloaded successfully and delete successful program, judge whether enough remaining spaces again, if any, again program code is write corresponding memory location, as insufficient space, then end to download, finish.

9. method as claimed in claim 1 or 2 is characterized in that, described program code is to be stored in one of storer dynamically in the logical partition of appointment, when this subregion writes data, it is changed to the data attitude, and after downloading end, it is changed to the program attitude so that directly call.

10. method as claimed in claim 7, it is characterized in that, described program code and file allocation table all are stored in the dynamically logical partition of appointment, at each write-in program code or before rewriting file allocation table, all that it is corresponding logical partition is changed to the data attitude, and write finish after, again that it is corresponding logical partition is changed to the program attitude.

11. method as claimed in claim 1 or 2 is characterized in that, described step (c) kept the environment of present procedure operation earlier before invokes application, and after calling end, the program environment before recovering again to call.

12. a subscriber identification module of supporting that dynamic routine is downloaded comprises monitoring module, memory module, it is characterized in that, also comprises application management module, wherein:

Described monitoring module is used to monitor the data of receiving, judges whether it is the machine code data of the application program of download, if give application management module and handle;

Described memory module is divided into several logical partitions, is used to store the data of program identification, program code address information and program code of the application program of download;

Described application management module further comprises:

The downloading control unit is used for after receiving the application data of download, and wherein program code is write described memory module, and the address information of save routine sign and program code;

Call control module, be used in the time will calling described application program, obtaining the start address of this program code according to program identification.

13. subscriber identification module as claimed in claim 12, it is characterized in that, described application management module further comprises: the deletion control module, be used in the time will deleting described application program, find the program code address information of preservation according to its program identification, the information deletion that this program is relevant.

14. as claim 12 or 13 described subscriber identification modules, it is characterized in that, also comprise a memory management module, be used to control the access rights of logical partition on the described memory module, in the download of application program, call, in the delete procedure, when needing the write-in program code data, its place subregion be changed to the data attitude, and when wanting the executive routine code, its place subregion is changed to the program attitude.

15. subscriber identification module as claimed in claim 12, it is characterized in that, described downloading control unit is that the address information of the program code mode with lagic interval chained list is kept in the file allocation table, program identification and the corresponding first location of lagic interval chained list are kept in the system registry, the described control module that calls finds the first location of its lagic interval chained list with the deletion control module according to program identification, and then calculates the start address and the lagic interval chained list that finds this program of program code.

16. subscriber identification module as claimed in claim 12 is characterized in that, described downloading control unit also program code write finish after, in operating system, carry out the registration of this program; Described deletion control module is finished earlier the anti-registration of this program in operating system before the information of this program of deletion.

17. a system that realizes the program dynamic download to subscriber identification module is characterized in that, comprise the applied business server and with the subscriber identification module of its communication, wherein:

Described applied business server comprises applied business data management module and communication processing module, this applied business data management module is used to preserve the machine code data of application program, when the user need download, program code is formed some data, give described communication processing module; Described communication processing module is used to receive user's download application, gives described applied business data management module, and the application code data of organizing are sent to the described subscriber identification module that application is downloaded;

Described subscriber identification module further comprises monitoring module, memory module and application management module, wherein:

Described monitoring module is used to monitor the data of receiving, judges whether it is the machine code data of the application program of download, if give application management module and handle;

Described memory module is divided into several logical partitions, is used to store the data of program identification, program code address information and program code of the application program of download;

Described application management module further comprises: the downloading control unit, be used for when remaining space is enough, the program code in the application data of receiving being write described memory module, and the address information of save routine sign and program code; Call control module, be used for obtaining the start address of this program code, carry out this application program according to program identification; The deletion control module is used for the relevant information deletion of the application program that will preserve.

18. system as claimed in claim 17, it is characterized in that, described communication processing module further comprises receiving element and transmitting element, described receiving element is used to receive the note of sending from short messaging gateway, identify the application of down load application program, user mobile phone number and the application information that will download are notified to described applied business data management module, every data that described transmitting element is used for organizing add status word, send to subscriber identification module according to the data SMS mode through short messaging gateway.

19. system as claimed in claim 17 is characterized in that, also comprises a card writing terminal processing module, this module employing is write card assembly function call mode application code is sent to described subscriber identification module.

20. system as claimed in claim 17, it is characterized in that, described subscriber identification module also comprises a memory management module, be used to control the access rights of logical partition on the described memory module, the download of application program, call with delete procedure in, when needing the write-in program code data, its place subregion is changed to the data attitude, and when wanting the executive routine code, its place subregion is changed to the program attitude.

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