Abstract:
The disclosure relates to a method for managing the triggering of an application in a terminal place in an environment consisting of several access technologies. The disclosure also relates to a mobile telephone type terminal that implements the method. A test mechanism is implemented for at least one application on the basis of information contained in the tested application when a triggering event occurs for an application, thereby making it possible to recognize or deduce the network access technologies supported by the application.

Description:
The disclosure is based upon French Application No. 0302736, filed Mar. 6, 2003, and PCT Application No. PCT/EP2004/050233, filed Feb. 27, 2004, the contents of which are incorporated herein by reference. 
     BACKGROUND OF THE INVENTION 
     The invention concerns a method of managing the triggering of an application in a service terminal and in particular a telecommunication terminal such as a mobile telephone. 
     The invention applies to any terminal and to chip cards able to trigger an application or to execute an application on the arrival of a triggering event. The invention also applies to applications comprising triggering rules as a function of the arrival of at least one predefined event. 
     In the context of a telecommunication terminal of the mobile telephone type, the arrival of an event triggering an application means for example the arrival of a short message (SMS) or the start of a call made on the mobile telephone by the user. 
     The invention applies since applications, for historical reasons, are related to triggering events so that their triggering is related to the arrival of a triggering event, when the terminal must be capable of functioning with different network environments, in other words in a multi-technology network access context. 
     This is because there exists today, in particular in telecommunications, competition between several technologies supported by the various operators. 
     In a practical fashion each telephone network operator offers one or more network access technologies and application programs, hereinafter referred to as applications, compatible with the network access technology of the operator, namely GSM, UMTS, CDMA, IDEN, ANSI-136, etc. 
     Solutions are sought today affording multi-technology accesses, that is to say solutions which make it possible for a service terminal and in particular a mobile telephone defined according to specific standards and technologies to be able to function in a multi-technology context. 
     SUMMARY OF THE INVENTION 
     The present invention is situated precisely in the context of multi-technology network access. 
     The present invention in fact enables a mobile telephone defined according to specific standards and technologies to function in a multi-technology network access context. More precisely, with the solution proposed by the present invention, an application defined for example according to the GSM standard and incompatible with UMTS access will not cause a malfunction of the telephone by being triggered. 
     One object of the invention is more particularly a method of managing the triggering of an application in a terminal placed in an environment composed of several access technologies, characterised in that it comprises:
         on the arrival of an event triggering an application,   the implementation of a mechanism for testing the application from information contained in the application tested, making it possible to know or deduce the network access technology or technologies supported by the application.       

     According to one embodiment, the test mechanism is in the operating system of the terminal and its implementation comprises:
         the verification by the terminal:   of information concerning the current network access technology or technologies,       

     information contained in the application enabling it to know or deduce the technology or technologies supported by the application,
         the triggering of the application solely in the case where this information is compatible.       

     According to another embodiment, the test mechanism is in the application and its implementation comprises:
         the verification by the terminal:   of information concerning the current network access technology or technologies,   of information contained in the application enabling it to know or deduce the technology or technologies supported by the application,   the continuation of the execution of the application solely in the case where this information is compatible.       

     According to another characteristic, the information contained in the application comprises triggering parameters from various operating modes of the application declared, making it possible to determine the abilities of the application, that is to say the network access technology or technologies supported by the application. 
     Advantageously, the mechanism comprises four operating modes, one of which is based on characteristics of the application, another on the identification of the application and the third on attributes of the application, a fourth mode is taken by default when none of the other three modes is declared. 
     Several operating modes can be declared for one and the same application. 
     The default mode corresponds to the case where the application is indifferent to the network access technology. 
     According to another characteristic, the mechanism uses commands designed to enable it to install a new application containing the information making it possible to know or deduce the technology or technologies supported by the said application or to update this information or to read this information. 
     Another object of the present invention concerns a service terminal comprising program storage means for storing a program corresponding to the operating system and one or more applications, principally characterised in that it also comprises means of implementing a method of testing at least one application from information contained in the application tested, this information enabling the operating system to know or deduce the network access technology or technologies supported by the application tested and to verify its compatibility with the current network access used by the terminal. 
     According to a particular application, the terminal is a telecommunication terminal of the mobile telephone type equipped with a chip card and is able to function with a multi-technology network access environment. The application or applications tested and the test mechanism are placed in the chip card of the terminal. 
     Another object of the invention concerns a telecommunication terminal chip card principally characterised in that it comprises means of implementing a mechanism for testing at least one application which, from information contained in the application tested, enables the operating system of the card to know or deduce the network access technology or technologies supported by the application tested and to verify its compatibility with the current network access used by the terminal. 
     The test mechanism is a program loaded in a non-volatile program memory of the card, called up by the operating system of the chip card or integrated in the said system. 
     Another object of the invention also concerns any application able to be executed by a service terminal or a chip card equipping this terminal placed in an environment composed of several network access technologies provided that it comprises triggering rules according to the arrival of at least one predefined event and provided that it also comprises information enabling it to know or deduce the network access technologies that it supports. 
     According to one embodiment, the application can also comprise a test mechanism which will enable it, from information that it contains, to know or deduce itself the network access technology or technologies supported. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Other particularities and advantages of the invention will emerge clearly from a reading of the description given below by way of non-limiting example and with regard to the accompanying drawings, in which: 
         FIG. 1  depicts a functional diagram of a mechanism for implementing the method according to the invention, 
         FIG. 2  depicts schematically a chip card able to implement the method according to the invention. 
     
    
    
     DETAILED DESCRIPTION 
     The following description concerns more particularly the application of the invention to a telecommunication terminal such as a mobile telephone. In such an application, the applications tested and the test mechanism are in the chip card associated with the mobile telephone. 
     For this, according to the method, provision is made for any application installed in a mobile telephone chip card to comprise information which enables the chip card to know directly from this information or to deduce from this information which is or are the access technology or technologies supported by the application. 
     In the example which will be described, provision is made for the information to be in the form of a data item comprising several bytes, one byte of which makes it possible to parameterise the operating mode or modes of the application. Thus the operating system of the card can, knowing the operating mode or modes of the application, know or deduce the abilities of the application to support one or other of the existing access technologies. 
     One or more other bytes make it possible to declare the existing technologies able to be supported by the application and one or more other bytes are provided for defining future technologies able to be supported by this application. 
     By going to read the information contained in a reserved field of the application, the card is given information on the possibilities of this application and will be able, with the mechanism provided, which can be integrated in its operating system, take the decision to activate an application or not. 
     The card will or will not take the decision to trigger the application if the current technology (the technology used by the card) is compatible with the information contained in the application. 
     For this, the operating system of the card and more precisely the             toolkit framework           part dedicated to the processing of the           toolkit           commands will implement the test mechanism illustrated by the diagram in  FIG. 1 , when an event triggering an application arrives.
     In order to know the current technology, there exist three possible solutions, namely:
         a           terminal profile           command, which describes the capabilities of the mobile telephone,   a           provide local information           command sent by the card to the mobile telephone and then to the network,   the operating system of the card possesses the information implicitly. It is in this case capable of implementing a processor that the card receives the information from the network.       

     In the example given, the card deduces the network access technology supported by an application from the triggering parameters contained in the application, these parameters making it possible to declare from one to three operating modes for an application, and a fourth mode being taken by default when none of the other three is declared. The test comprises in the example a succession of tests for the three modes declared, each mode taken individually not necessarily making it possible to give a complete response on the technology supported by the application. The declared modes are as follows: 
     Mode            0         :
     This is the mode that is taken by default by the operating system of the card when no mode is declared in the application. No mode is declared when the fields recording the mode parameters are empty. Mode            0          means that the application is independent of the network access technologies and that it can be activated under any one of the network technologies.
     Mode            1         :
     This mode is used when the mode            1          parameter is declared in the field of the application provided. This mode signifies that the operating system is capable of deducing the abilities of the application from the heritage hierarchy, the derived classes and the implemented interfaces.
     It is a case typically of a Java application. In the case of a Java application, the application is extended from classes or implements a given interface. The Java execution environment is capable of knowing which are these classes and the interface and thus knowing which are the abilities inherited by the application since the classes and the interface involved are normally standard and known. 
     By virtue of this it is possible for the card (the operating system) to determine whether or not the application supports a particular access technology. 
     Mode            2         :
     This mode is used when the parameter of mode            2          is declared in the field of the application provided. This parameter indicates that the operating system is capable of deducing the abilities of the application by means of its identification (name) or other elements that enable it to be recognised.
     The application possesses an identification code (application identifier: AID), in general from 1 to 16 bytes, which makes it possible to identify it uniquely on a card. 
     This identification code (or name) can contain information on its presentation (package), the classes or associations. From this information it is possible for the operating system to deduce the abilities of the application to support or not one or other of the network access technologies. 
     Mode            3         :
     This mode is used when the parameter            3          is declared in the field of the application provided.
     This mode signifies that the operating system of the card is capable of deducing the abilities of the application from attributes that it contains or that are associated with it. Some attributes can be hard coded in the classes, assigned during an extantiation or associated with the application during its installation. From these elements the operating system can deduce the abilities of the application to support a network access technology or not. 
     Thus, for example, when an application is installed, certain installation parameters are supplied in order to identify the access technologies that the application can support, these parameters are stored on the card and associated with the application. 
     When a triggering event occurs, the operating system of the card recovers the parameters and determines whether or not the application can support the access technology of the card (the current access). If the technology supported by the application is compatible with the current technology of the card then the card triggers the application, otherwise the card does not trigger the application. 
     The following tables are given by way of example. They depict an illustration of the information contained in an application to make it possible, as has been seen, to know or deduce the network access technology or technologies supported by the application. 
     This information is in the example in the form of 4 bytes as detailed below: 
     
       
                 
         
             
             
         
      
     
     The following table illustrates an example of information declared in an application and its meaning. The data are in hexadecimal. 
     
       
         
               
               
             
               
               
               
               
               
             
           
               
                   
               
               
                 Selective mode activation 
                   
               
             
          
           
               
                 Byte 1 
                 Byte 2 
                 Byte 3 
                 Byte 4 
                 Description 
               
               
                   
               
               
                 ‘01h’ 
                 ‘XXh’ 
                 ‘XXh’ 
                 ‘XXh’ 
                 The application uses 
               
               
                   
                   
                   
                   
                 mode 1, these abilities 
               
               
                   
                   
                   
                   
                 can be derived from 
               
               
                   
                   
                   
                   
                 these heritages. 
               
               
                 ‘02h’ 
                 ‘XXh’ 
                 ‘XXh’ 
                 ‘XXh’ 
                 The application uses 
               
               
                   
                   
                   
                   
                 mode 2, these abilities 
               
               
                   
                   
                   
                   
                 can be deduced from its 
               
               
                   
                   
                   
                   
                 identification. 
               
               
                 ‘14h’ 
                 ‘OOh’ 
                 ‘OOh’ 
                 ‘OOh’ 
                 The application uses 
               
               
                   
                   
                   
                   
                 mode 3 for indicating 
               
               
                   
                   
                   
                   
                 that it supports only 
               
               
                   
                   
                   
                   
                 GSM access. 
               
               
                 ‘34h’ 
                 ‘OOh’ 
                 ‘OOh’ 
                 ‘OOh’ 
                 The application uses 
               
               
                   
                   
                   
                   
                 mode 3 to indicate that 
               
               
                   
                   
                   
                   
                 it supports GSM and UMTS 
               
               
                   
                   
                   
                   
                 access. 
               
               
                 ‘85h’ 
                 ‘OOh’ 
                 ‘OOh’ 
                 ‘OOh’ 
                 The application uses 
               
               
                   
                   
                   
                   
                 mode 3 for indicating 
               
               
                   
                   
                   
                   
                 that it supports CDMA 
               
               
                   
                   
                   
                   
                 2000, and mode 1 is used 
               
               
                   
                   
                   
                   
                 at the same time to 
               
               
                   
                   
                   
                   
                 indicate its abilities 
               
               
                   
                   
                   
                   
                 in this context. 
               
               
                   
               
             
          
         
       
     
     A description will now be given of the method implemented by the mechanism illustrated by the functional diagram in  FIG. 7 . The steps therein are referenced from  1  to  11 . 
     On the arrival of an activation event  1 , the operating system identifies the application concerned  2  and checks whether this application is in the card  3 . If the application is not in the card the mechanism ends  4 . 
     When the application is in the card, the operating system checks whether mode            1          is declared  5 .
     If this mode is declared, the operating system deduces which is the network access supported by the application and whether this access is compatible with the current access  6 . If there is incompatibility, the mechanism ends and awaits a new activation event for an application. 
     Where there is compatibility  6  or where mode            1          is not declared, the operating system checks whether mode          2          is declared  7 .
     If such is the case, the operating system deduces which is the network access supported by the application and whether this access is compatible with the current access  8 . 
     If there is incompatibility, the mechanism ends and awaits a new activation event for an application. 
     Where there is compatibility  8  or where mode            2          is not declared, the operating system checks whether mode          3          is declared  9 .
     If this mode is declared, the operating system deduces which is the network access supported by the application and whether this access is compatible with the current access  10 . If there is incompatibility, the mechanism ends and awaits a new activation event for an application. 
     Where there is compatibility  10  or where mode            3          is not declared, the operating system activates the application  11 . This is because, as seen previously, if none of the modes is declared, this means that the application is independent of the network access technology, the default mode          0          is applied.
     The use of several commands is also provided with this mechanism. 
     A first command makes it possible to install a new application on a card. This command comprises all the parameters that have just been described and is sent with the new application to be loaded in the card. This command is called            INSTALL          and its status structure is given in Appendix 1 of the description.
     This command            INSTALL          is therefore sent to the card with the application over a radio link in the form of an SMS message for example.
     In the example given the command comprises five header bytes that specify the nature of the said command and 0 to 255 data bytes. The data structure illustrated in the appendix shows that the first data byte specifies the length of the AID application (application identifier) of the load file and the following X bytes specify the value of this AID, the byte X+2 specifies the length of the AID of the application class, the following bytes the value of this AID, etc. 
     A second command is provided, it is a case of the command            PUT DATA         . This command enables the operating system of the card to be able to perform an update of the parameters for triggering an application after its installation. This command is detailed in Appendix 2 of the description.
     A third command is provided, it is a case of the command            GET DATA         . This command makes it possible to read the application triggering parameters. This command is detailed in the appendix of the description.
     A fourth command may be provided, it is a case of the command            GET STATUS          to make it possible to find the triggering parameters of an application. An example of a response in return to this command is illustrated in the appendix to this description.
       FIG. 2  illustrates schematically and in a simplified fashion a memory MEM of a chip card C. This memory represents the program memory or memories of a mobile telephony chip card. The memory illustrated MEM contains programs such as the operating system of the chip card and at least one application program A. 
     According to the invention the program of the operating system OS of the card comprises or uses a mechanism M illustrated by  FIG. 1 . The application A loaded in the card for its part comprises the information, that is to say the triggering parameters previously described which enable the card to know or deduce which are the network access technologies supported by the application. 
     In a variant execution, the testing mechanism can be located within the application itself. In this case the application is triggered and at the start of its execution the test is implemented. If the test reveals that the application is compatible with the current access then the execution continues, otherwise the execution stops. 
     APPENDIX 1 
     Data Structure of the INSTALL Command 
     
       
         
               
               
               
             
               
               
               
               
             
               
               
               
               
             
               
               
               
               
             
               
               
               
             
           
               
                   
               
               
                 M/O 
                 LENGTH 
                 DESCRIPTION (1)   
               
               
                   
               
             
             
               
                 M 
                 1 
                 Load file AID length 
               
               
                 M 
                 5 to 16 
                 Load file AID field 
               
               
                 M 
                 1 
                 Applet Class AID length 
               
               
                 M 
                 5 to 16 
                 Applet Class AID 
               
               
                 M 
                 1 
                 Instance AID length 
               
               
                 M 
                 5 to 16 
                 Instance AID field 
               
               
                 O 
                 1 
                 Privilege length 
               
               
                 O 
                 0 or 1  
                 Privilege field 
               
               
                 M 
                 1 
                 Install Parameter Length 
               
               
                 O 
                 ≧14      
                 Install Parameter field in TLV format: 
               
             
          
           
               
                   
                 M/O 
                 LENGTH 
                 DESCRIPTION 
               
               
                   
                 O 
                 1 
                 Tag of System specific parameters field (= EFh) 
               
               
                   
                 O 
                 1 
                 System specific parameters length 
               
               
                   
                 O 
                 ≧10      
                 System specific parameters field in TLV format: 
               
             
          
           
               
                   
                 M/O 
                 LENGTH 
                 DESCRIPTION 
               
               
                   
                 O 
                 1 
                 Tag C8h 
               
               
                   
                 O 
                 1 
                 Length of next field 
               
               
                   
                 O 
                 2 
                 Non-volatile install memory 
               
               
                   
                   
                   
                 size 
               
               
                   
                 O 
                 1 
                 Tag C7h 
               
               
                   
                 O 
                 1 
                 Length of next field 
               
               
                   
                 O 
                 2 
                 Volatile install memory size 
               
               
                   
                 O 
                 1 
                 Tag Cah 
               
               
                   
                 O 
                 1 
                 Length of next field 
               
               
                   
                 O 
                 0 or 6 + 2n 
                 GSM applet specific parameters 
               
             
          
           
               
                   
                 O 
                 1 
                 Tag C9h 
               
               
                   
                 O 
                 1 
                 Length of next field 
               
               
                   
                 O 
                 0 to 32 
                 Application specific parameters field (unformatted) 
               
               
                   
                 O 
                 1 
                 Tag CBh 
               
               
                   
                 O 
                 1 
                 Length of next field: 4 
               
               
                   
                 O 
                 4 
                 Selective Triggering parameters 
               
             
          
           
               
                 M 
                 1 
                 Length of next field (Not Checked) 
               
               
                 O 
                 0 
                 Reserved for Install token field (delegation not supported) 
               
               
                   
               
             
          
         
       
     
     APPENDIX 2 
     PUT DATA Command 
     
       
         
               
               
             
           
               
                   
               
               
                 FIELD 
                 DESCRIPTION-VALUE 
               
               
                   
               
             
             
               
                 CLA 
                 80h or 84h 
               
               
                 INS 
                 Dah 
               
               
                 P1 
                 Data Object Tag Parameter ‘00h’ 
               
               
                 P2 
                 Data Object Tag Parameter ‘C2h’ 
               
               
                 Lc 
                 Data Length plus Put Data Token Length (if present) and 
               
               
                   
                 MAC Length (if present) 
               
               
                 Data field 
                 Data, Put Data Token (if present), and MAC (if present) 
               
               
                   
               
             
          
         
       
     
     DATA Command for TAG 00C2h 
     
       
         
               
               
               
             
           
               
                   
               
               
                   
                 Length 
                 Description 
               
               
                   
               
             
             
               
                   
                 1 
                 AID Tag: ‘4Fh’ 
               
               
                   
                 1 
                 AID Data Length: ‘05h-10h’ 
               
               
                   
                 5-16 
                 Application AID Data: ‘XX . . . ’ 
               
               
                   
                 1 
                 Selective Triggering Parameter Tag: ‘CBh’ 
               
               
                   
                 1 
                 Selective Triggering Parameter Length: ‘04h’ 
               
               
                   
                 4 
                 Selective Triggering Parameter Data: ‘XXXXXXXX’ 
               
               
                   
               
             
          
         
       
     
                 GET DATA          Command
     
       
         
               
               
               
             
           
               
                   
               
               
                   
                 FIELD 
                 DESCRIPTION-VALUE 
               
               
                   
               
             
             
               
                   
                 CLA 
                 80h or 84h 
               
               
                   
                 INS 
                 Cah 
               
               
                   
                 P1 
                 Data Object Tag Parameter: ‘00h’ 
               
               
                   
                 P2 
                 Data Object Tag Parameter: ‘C2h’ 
               
               
                   
                 Lc 
                 Data Length plus MAC Length (if present) 
               
               
                   
                 Data field 
                 Data and MAC (if present) 
               
               
                   
               
             
          
         
       
     
     DATA Command for TAG 00Ch2 
     
       
         
               
               
             
           
               
                   
               
               
                 Length 
                 Description 
               
               
                   
               
             
             
               
                 1 
                 AID Tag: ‘4Fh’ 
               
               
                 1 
                 AID Data Length: ‘05h-10h’ 
               
               
                 5-16 
                 Application AID Data: ‘XX . . . ’ 
               
               
                 1 
                 Selective Triggering Parameter Tag: ‘XX’ (not analyzed) 
               
               
                 1 
                 Selective Triggering Parameter Length: ‘XX’ (not 
               
               
                   
                 analyzed) 
               
               
                 4 
                 Selective Triggering Parameter Data: ‘XXXXXXXX’ (not 
               
               
                   
                 analyzed) 
               
               
                   
               
             
          
         
       
     
     APPENDIX 3 
     DATA Response for TAG 00C2h 
     
       
         
               
               
               
             
           
               
                   
               
               
                   
                 Length 
                 Description 
               
               
                   
               
             
             
               
                   
                 1 
                 AID Tag: ‘4Fh’ 
               
               
                   
                 1 
                 AID Data Length: ‘05h-10h’ 
               
               
                   
                 5-16 
                 Application AID Data: ‘XX . . . ’ 
               
               
                   
                 1 
                 Selective Triggering Parameter Tag: ‘CBh’ 
               
               
                   
                 1 
                 Selective Triggering Parameter Length: ‘04h’ 
               
               
                   
                 4 
                 Selective Triggering Parameter Data: ‘XXXXXXXX’ 
               
               
                   
               
             
          
         
       
     
                 GET STATUS          Command
     
       
         
               
               
               
               
             
           
               
                   
               
               
                   
                 Length 
                 Value 
                 Meaning 
               
               
                   
               
             
             
               
                   
                 1 
                 ‘xx’ 
                 Length of AID 
               
               
                   
                 1-n 
                 ‘xxxx . . . ’ 
                 AID 
               
               
                   
                 1 
                 ‘xx’ 
                 Life Cycle State 
               
               
                   
                 1 
                 ‘xx’ 
                 Application Privileges 
               
               
                   
                 4 
                 ‘xxxxxxxx’ 
                 Selective Triggering Parameters