JP2002091770A - Portable terminal and application executing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable terminal and an application executing method for providing a service similar to an SIM adaptable to a SAT even if having an SIM unadaptable to the SAT. SOLUTION: A SAT function and an application are stored in an external storage device detachable from the portable terminal and when an SIM card connected to that terminal does not correspond to the SAT, the SAT function is downloaded from the external storage device. While using the downloaded SAT function, the application is executed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a portable terminal for executing an application provided in a short message format and an application execution method.

[0002]

2. Description of the Related Art In the Pan-European Digital Cellular Telephone System (GSM), its specifications have been upgraded by a term called Phase in order to expand services and improve functions. Currently, a specification called Phase 2 is applied, but then Phase 2+ is applied. Among these, a SIM (Subscriber Identity Module) that manages subscriber authentication, security, and storage of contract contents with an operator is not an exception. In addition, SAT is a newly provided function.
(SIM Application Tool Kit). That is, in the Phase 2+ Specification prepared after the current Phase 2 Specification, the SA
We provide application support software called T.

[0003] The detailed specifications of the SAT are described in ET.
See SI GSM 11.14.

[0004] The conventional method of using the SIM has basically been an operation in a slave mode in which the operation is always controlled from the terminal body except for an initial state at the time of power-on. That is, SIM
When the power of the terminal device is turned on, it provides information necessary for the session with the SIM to the terminal device, except when providing the initial setting information called Answer-To-Rest. Writing or reading is being performed. That is, the terminal device is the master and S
IM is operating as a slave.

According to the new Phase 2+ specification, a function called SAT is set in the SIM as described above,
(Short Message Service) and executes the provided application inside the SIM. The SAT fetches an application sent from an operator or a service provider into the SIM once, and the sent application uses the SAT function, so that the SIM operates as a master and the terminal itself operates as a slave. Is what you do.

[0006] When the transmitted application is started, the terminal first checks how the terminal main body corresponds to the SAT and then executes it. For example, an LCD (liquid crystal display) is provided to the user. ) To display the choices on the display. Then, it becomes possible for the user to use the keys of the terminal body and to give a function of transferring the result selected therefrom to the operator or the service provider again.

That is, an operator or a service provider connected to a network transfers an application to a user, and the user selects, for example, one of options based on information shown when the application is executed. Then, the result can be returned to the operator or the service provider again.

[0008]

However, the number of characters that can be transmitted as a short message is about 176 bytes, which is not a large capacity, and cannot be applied to a long application. In addition, in order to use the above SAT, it is required that the SAT is provided in the SIM and that the terminal device also supports the SAT. Therefore, when an application using the SAT is started, the SIM reads data called a terminal profile (Terminal Profile) in order to know the corresponding state of the terminal device, and checks the difference in the corresponding state between the devices. Recognizing and selecting a usable tool from the SAT and executing it.

However, even if SAT-compatible terminal equipment comes on the market, at present, most subscribers use a conventional SIM that does not support SAT, so that the above-mentioned service can be immediately enjoyed. There is no. That is,
Older SIMs do not have the SAT function and the operator or service
Even if a new service using the T function is started, there is a problem that the owner cannot enjoy these services.

[0010] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a portable terminal for providing a service medium not based on SMS from a communication network and an application execution method. .

[0011] Another object of the present invention is to provide an SAT-unsupported S.
An object of the present invention is to provide a mobile terminal and an application execution method capable of providing a service similar to a SAT-compliant SIM to a subscriber having an IM.

[0012]

To achieve the above object, the present invention provides a SIM (Subscriber Identity Module)
In a portable terminal capable of interfacing with a card, a removable external storage means, a first transfer means for downloading an application of a predetermined format from the external storage means, and a function set for operating the application from the external storage means A portable terminal comprising: a second transfer unit for executing the downloaded application; and an execution unit for executing the downloaded application by using the downloaded function set.

Another invention is a SIM (Subscriber Identit
y module) a portable terminal capable of interfacing with a card, a removable external storage means, a fourth transfer means for downloading an application of a predetermined format sent via a predetermined communication network, and the external storage means A mobile terminal comprising: a fifth transfer unit that downloads a function set for operating an application; and an execution unit that executes the downloaded application by using the downloaded function set.

Another invention relates to a SIM (Subscriber Identit
y Module) In a portable terminal that can interface with a card, a removable external storage means and a seventh application for downloading an application of a predetermined format from the external storage means.
Transfer means, an eighth transfer means for downloading an application of a predetermined format sent via a predetermined communication network, and a ninth transfer means for downloading a function set for operating the application from the external storage means A portable terminal comprising: an execution unit that arbitrarily executes the application downloaded by the seventh and eighth transfer units using the downloaded function set.

In another invention, a SIM (Subscriber I)
(dentity Module) A method for executing an application in a portable terminal capable of interfacing with a card, a first transfer step of downloading an application of a predetermined format from a detachable external storage means, and a function of operating the application from the external storage means An application execution method is provided, comprising: a second transfer step of downloading a set; and a step of executing the downloaded application using the downloaded function set.

Further, another invention relates to a SIM (Subscriber).
An application execution method in a portable terminal capable of interfacing with an Identity Module card, the method comprising: a fourth transfer step of downloading an application of a predetermined format sent via a predetermined communication network; A fifth transfer step of downloading a function set for operating the application;
An execution step of executing the downloaded application by using the downloaded function set.

In another invention, a SIM (Subscriber I)
(dentity Module) A method for executing an application in a portable terminal capable of interfacing with a card, comprising: a seventh transfer step of downloading an application of a predetermined format from a removable external storage means; and a predetermined format sent via a predetermined communication network. An eighth transfer step of downloading the application set, a ninth transfer step of downloading a function set for operating the application from the external storage means, and using the downloaded function set, 8) a step of arbitrarily executing the application downloaded in the transfer step (8).

[0018]

In the portable terminal, the first transfer means downloads the SAT-compatible application from the external storage means, and the second transfer means downloads the SAT, which is a function set for operating the application, from the external storage means. Then, the execution means executes the downloaded application by using the downloaded SAT function, so that even a terminal having a SIM that does not support the SAT functions to execute the SAT-compatible application.

The portable terminal has detachable external storage means, and the fourth transfer means downloads an SAT-compatible application sent via a predetermined communication network, and
Transfer means downloads the SAT, which is a function set for operating the application, from the external storage means, and the execution means executes the downloaded application using the downloaded SAT. Even terminals with unsupported SIM,
The terminal functions to execute an SAT-compliant application distributed from the network on the terminal.

Further, in the portable terminal, the seventh transfer means downloads the SAT-compatible application from the removable external storage means, and the eighth transfer means executes the SAT-compatible application transmitted via the predetermined communication network. The ninth transfer means downloads the function set for operating the application from the external storage means, and the executing means uses the downloaded function set to execute the seventh and eighth functions. Since the application downloaded by the transfer means is arbitrarily executed, a plurality of different applications can be selectively executed or distributed, and even if there is no SIM, the terminal itself can execute the SAT-compatible application.

[0021]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 shows a configuration of a digital cellular system that expresses a general concept of a portable terminal and a communication network (network). In the figure, for example, from a mobile phone A (103) to a mobile phone B
When making a call to (104), the terminal user inputs the other party's telephone number to the mobile phone A (103) and makes a dial call. This calling operation is performed by the mobile phone A (10
It is also possible to carry out automatically with the internal software of 3).

The mobile phone A (103) is provided with a spatial medium (Ai).
r Interface) A (105) is connected to the mobile phone base station A (101). This mobile phone base station A (1
01) via the digital interface 106 (usually an IDSN or the like).
2), the mobile phone B (104) is connected to the Air Inte
rfaceB (107), this mobile phone base station B (10
The location is registered in 2). Therefore, the mobile phone A (103) is finally connected to the mobile phone B (104) via a line, and can communicate with each other.

On the other hand, a PSTN (public telephone line) station 108 is connected to a digital interface 106 for connecting the mobile phone base station A (101) and the mobile phone base station B (102). By connecting a telephone (not shown), a wired telephone and
Mobile phone A (103) or mobile phone B (104)
And are connected.

Internet Services
The provider 109 has a digital interface 11
0, the mobile phone A (101) is connected to the mobile phone base station A (101).
Via (101), the service can be enjoyed according to the contract contents. This service includes, for example, downloading to update data or providing other information. In addition, an application using the SAT is referred to as SMS-PP (Short Message Service Point-To-P).
oint), or SMS-CB (Short Mess
age Service CellBroadcast) and send it to the user, and the provider receives the result selected by the user to execute the application.

Next, the configuration of the digital cellular portable telephone will be described. FIG. 2 is a block diagram showing a configuration of the mobile phone (hereinafter, also appropriately referred to as a terminal) according to the present embodiment. In the figure, a signal received by an antenna 201 is guided to a reception RF section 203 by a selector 202. The reception RF section 203 performs necessary band limiting and processing such as automatic gain control (AGC) so that the reception signal has an appropriate level. Then, the signal from the frequency controlled local oscillator 211 and the output from the RF receiver 203 are mixed by the mixer 204 to convert the received frequency to a constant frequency.

The output from the mixer 204 is input to the reception IF unit 205, where the analog / digital (A
/ D) converted into IQ digital data having a constant bit rate. The IQ digital data is subjected to removal of effects such as fading, discrimination of the type of the received signal, de-interleave (de-interleave), and error correction in the reception demodulation unit 206, and after appropriate decoding, is performed. It is separated into data and communication data.

Normally, audio data is compressed and sent in blocks for each received burst, so it is expanded and decoded by the audio decoding unit 207, and then digital / analog (D / A) according to the audio sampling rate. D /
A) Converted. The D / A converted analog signal is amplified in power by a speaker amplifier 208 and emitted from a speaker 209.

On the other hand, the communication data separated by reception demodulation section 206 is returned to final original data in communication data decoding section 210. The received data is transmitted from the input / output unit (I / O) 220 to the external device via the CPU bus 225 and the data interface (I / F) 220c.

On the transmitting side, the voice of the terminal user or the like is converted into an analog voice signal through the microphone 218. Since the output from the microphone 218 has a low signal level, the output is amplified to a required voltage by the microphone amplifier 217. The audio signal thus amplified is subjected to A / D conversion at an appropriate sampling rate in the audio encoding unit 216 and digitized. Then, after the digitized signal is encoded and compressed, it is collected into blocks that match the burst signal in RF.

The digital data input from the data I / F 220c of the I / O 220 is compiled into an appropriate block in the communication data encoding unit 219. Then, the data from the voice encoding unit 216 and the data from the communication data encoding unit 219 are combined by the transmission modulation unit 215 to become IQ digital data having a constant data rate.

The signal collected in this way is transmitted by the transmission IF
After being D / A-converted by the unit 214 and converted into an analog modulated signal, the signal is mixed by the mixer 213 with a signal for conversion from the local oscillator 211 in order to convert the signal into a desired transmission frequency. Then, the signal converted into the desired frequency is power-amplified in the transmission RF section 212 so as to have a necessary transmission power, and is radiated from the antenna 201 via the selector 202.

The CPU bus 225 is connected to a central processing unit and a memory, which will be described later. That is, in the ROM 221 as a read-only memory, a program executed by the central processing unit (CPU) 224 is stored in advance, and data such as a font for display is also stored. Write / read memory (RAM) 222 as needed
Is stored in the middle of calculation as necessary while the central processing unit (CPU) 224 is executing the program, or temporarily stores the data when data is moved between the receiving unit and the transmitting unit. It is used in such cases.

EEPRO, an electrically erasable memory
M223, for example, even if the power of the mobile phone is turned off,
If the setting conditions immediately before that are stored and the same setting is used when the power is turned on next time, storing these setting parameters will improve the convenience for the user. provide. A real-time clock (RTC) 226 for measuring time is a part that provides date and time data, and is used for, for example, a time stamp, a clock display of a mobile phone, an alarm, and the like.

I / O which is an interface with an external device
Here, 220 mediates the connection of the display 220a, the keyboard 220b, the data I / F 220c, and the like. The external storage I / F 220d stores these data, for example, when using data from a memory stick (Memory Stick) in the main body or when downloading data from the service provider 109 in FIG. Interface used for the purpose of
Note that the SIM I / F 220e interfaces with a SIM described later.

FIG. 3 is a block diagram showing the internal configuration of the memory stick. The operating power supply (VCC) 301 of the memory stick 300 is, for example, 2.7 to 3.6 V
And operation is possible in this range. The bidirectional data signal (DIO) 302 is a transfer protocol command.
This is a signal for writing or reading control data called d (TPC) or data itself. The bus state (BS) 303 includes a bidirectional data signal (DI
O) Indicates the status of the data on the memory 302. For example, the status is changed by TPC or data itself before data access is performed, and processing of the memory stick is executed.

The transfer clock (SCLK) 304 is TP
Occurs when transferring C or data itself. The transfer clock (SCLK) 304 is controlled by the bus state (BS) 303 described above. Insertion and removal detection (IN
S) 305 is used by an external device (here, a mobile phone) to detect a detached state of the memory stick. Therefore, inside the memory stick, it is connected to the ground (VSS) 306, and on the external device side,
Connected to power supply via pull-up resistor. Therefore,
When the memory stick is mounted, INS becomes logic “L”, and when not mounted, it becomes logic “H”. The ground (VSS) 306 is connected to the ground of the external device.

At the time of writing, the serial / parallel converter 307 converts serial data sent in synchronization with a transfer clock (SCLK) 304 through a bidirectional data signal (DIO) 302 into 8-bit parallel data. . Control commands and data are also
It is converted from serial data to parallel data.

On the other hand, at the time of reading, 8-bit data stored in the memory stick is converted from parallel data to serial data and output to an external device via a bidirectional data signal (DIO) 302. .

The register 308 has, for example, a status
Registers, parameter registers, extra data
The TPC controls access to the memory inside the memory stick. The page buffer 309 is used for temporarily storing data when data is exchanged between the serial / parallel converter 307 and the flash memory 313 which is an electrically rewritable nonvolatile memory.

Error detection code generator (ECC) 310
Is to add an error detection code to the data to be transferred using, for example, a cyclic redundancy check (CRC), or
Error detection of the transferred data is performed to ensure the reliability of the data. The attribute ROM 311 stores physical information inside the memory stick, and the external device reads this information immediately after power-on. The external device uses this information to check the correspondence status.

The flash I / F sequencer 312 controls data between the page buffer 309 and the flash memory 313 which is an electrically rewritable nonvolatile memory based on parameters set in the register 308 and the like. I do. Note that the flash memory 313 is
For example, it is composed of NAND-type memory cells, and stores data in units of pages having a certain capacity. Its storage capacity is, for example, about 64 megabytes, and adopts a serial half-duplex synchronous data transfer method, and is 20 Mbps.
Access speed of the order can be secured.

The portable telephone according to the present embodiment provides a SAT compatible service using a portable external storage device such as a memory stick as a medium.
In this case, the user is provided with the SAT function and the application stored in advance in a part of the electrically rewritable nonvolatile memory (flash memory 313).

FIG. 3 shows the memory stick itself.
As can be seen from the internal configuration shown in (1), since the CPU is not built in, the SAT and the application provided by the memory stick are downloaded once into the terminal device main body and then executed. Therefore,
The CPU of the terminal device needs to spend some processing time to execute the application.

FIG. 4 is a block diagram showing the internal configuration of a SIM (IC card with a built-in CPU). SIM400
The operating power supply (VCC) 401 is a power supply supplied from outside, and its voltage is 5V or 3V. A program power supply (VPP) 402 is an EEPROM 410 which is a built-in electrically erasable ROM.
Power supply for programming. The power supply voltage is generally the same as VCC 401, or some are generated inside the SIM. Note that here, the power is supplied from the outside.

The bidirectional data signal line (I / O) 403
When a data signal is not input or output on a signal line used for actual input / output of data, the voltage is maintained at substantially the same voltage as that of the operating power supply (VCC) 401. It is in the receiving state. A clock (CLK) 404 is a clock for operating the central processing unit (CPU) 412 built in the SIM. This clock is appropriately divided by a frequency divider 408 and sent to a serial / parallel converter 407.
It serves as a transfer clock that determines the transfer speed of data exchanged on the bidirectional data signal line (I / O) 403.

A reset (RST) 405 is a reset signal input, and has a built-in central processing unit (CPU).
412 as well as a frequency divider 408 and a serial /
It is provided to initialize the parallel converter 407 and the like. The serial / parallel converter 407 converts data serially transferred from the external device into, for example, parallel 8-bit data.

For data input / output via the bidirectional data signal line (I / O) 403, a start bit "
L "is detected, and thereafter, the LSB first positive logic (or the MSB first negative logic.
(Performed by the C card manufacturer), followed by bit data, and an even parity 1 bit is added. If there is an error in the parity, "L" is transmitted from the receiving side at a specific time between two clocks following the parity bit. As a result, the transmitting side that has noticed the occurrence of the error transmits the same data again.
This method is a half-duplex asynchronous communication protocol of ISO7816. The serial / parallel converter 407 performs a serial / parallel conversion process through these processes.

RA is a memory which can be written and read at any time.
M409 is processed by the central processing unit (CPU) 412.
It is used to temporarily store necessary data or temporarily store data until some data is collected. EEPROM, an electrically erasable ROM
M410 contains data used only internally,
Data and the like used continuously while being updated are stored. For example, in a digital cellular portable terminal, speed dial, contract contents, short message, or control data for starting and maintaining communication is transmitted by EEPR.
Stored in the OM 410.

Although an EEPROM is used here as the electrically erasable ROM, for example, an electrically rewritable nonvolatile memory such as a flash memory may be used.

The ROM 411 serving as a read-only memory mainly stores programs to be processed by the central processing unit (CPU) 412. The processing instruction is input from an external device via a bidirectional data signal (I / O) 403. This processing instruction is used, for example, to operate a public instruction system necessary for manufacturing and using a mobile terminal, and to operate security, for example, a scramble key generation unit, data that cannot be used by anyone other than an issuer or an administrator, and the like. It consists of a secret management command system and a password. The security function of the SIM is further enhanced by this secret management instruction system.

The frequency divider 408 is a central processing unit (CPU)
A clock for transmitting data using a predetermined transmission rate on the bidirectional data signal line (I / O) 403 is obtained from a clock (CLK) 404 for operating the 412. The dividing ratio is 1/37 in GSM.
Although 2 is used, another suitable value may be used.

The central processing unit (CPU) 412 is a SIM
Executes internal processing according to external instructions. At this time, processing is performed by judging an access condition unique to each data group (file) stored therein, that is, whether or not a password verification is necessary, whether or not there is an access right.

CPU bus 413 as data bus
When a central processing unit (CPU) 412 executes an instruction, the instruction is stored in a ROM 411 that is a read-only memory.
To temporarily store data in the RAM 409, which is a write / read memory, or transfer access data to the EEPROM 410, which is an electrically erasable ROM, to an external device. Signal line.

Here, the functions related to the SAT are stored in the ROM 411 as a read-only memory, and generally, the user cannot see it. Applications sent as Short Message Service (SMS) use electrically erasable ROM (EEP).
The program is started after being stored in a predetermined file in the ROM 410). At this time, the terminal profile is read from the terminal device. This profile data is stored in the RAM 409 as a write / read memory as needed.

Hereinafter, the execution process of the predetermined application according to the present embodiment will be described with reference to a flowchart. Here, as a premise of the processing, the short message service (S
MS), or when an external storage device is attached to the mobile phone main body and the user starts the SAT application, this process (subroutine) is called from the main routine and the application is executed. Shall be.

FIG. 5 is a flowchart showing a procedure for executing an application in the mobile phone according to the present embodiment. In the processing procedure shown in the drawing, first, in step S502, it is determined whether or not an SMS, which is one of the conditions of the subroutine call, has been received in order to confirm what caused the subroutine to be called. (T
ext SMS determination).

If it is determined in step S502 that the sent short message is a normal Text statement, the flow advances to step S511 to perform a normal SMS display execution process. After this processing is executed, this subroutine ends, so that the process returns to the main routine again.

However, in step S502, the normal Te
If it is determined that the sentence is not an xt statement, step S50
At 3, it is determined whether it is a SAT-compliant short message (SAT SMS determination). Here, for example, based on a tag or a header attached to the short message, it is determined whether the message is a normal Text statement or a message corresponding to the SAT.

If it is determined in step S503 that the SIM is compatible with the SAT application, the process proceeds to step S504 to check whether the SIM is compatible with the SAT.
Then, 'SAT SIM determination' is performed. If the SIM is SAT-compliant, the process proceeds to step S512, and the sent SAT-compliant short message is downloaded into the SIM.

The application sent in the short message format as described above proceeds to step S513.
Then, the process is executed inside the SIM, and thereafter, the present process ends. The applications executed here include, for example,
Display processing on the terminal, input request processing that prompts the user to select a key based on the display, and the result in the form of a short message in the form of an operator or service
There are processes such as sending back to the provider. Also,
The application includes a process of setting a call to a predetermined telephone number or the like via a portable terminal and transmitting data according to a result of the input request process.

When performing the above-described processing, the SIM reads the terminal profile as described above, recognizes the corresponding status of the main body terminal (mobile phone), and executes the processing. As a result, a predetermined application can be executed even in a terminal having a different user interface.

If it is determined that the SIM does not correspond to the SAT in the “SAT SIM determination” in step S504, an external storage device connected to the terminal (for example, an external memory such as a memory stick) SAT
Function may be included. Therefore, step S5
At 05, it is checked whether or not an external storage device is connected (external memory determination).

When it is determined that the cause of the subroutine call is not the SAT-compliant SMS in the “SAT SMS determination” in step S503, the user of the terminal may be stored in the external storage device. It is considered that the user has selected to start a SAT-compatible application that has potential. Therefore, also in this case, since it is necessary to confirm whether or not the external storage device is connected, the process proceeds to the external memory determination processing in step S505.

If it is determined in step S505 that the external storage device is not attached to the main body terminal, the process proceeds to step S505.
Since the AT-compatible application cannot be executed, the fact is notified to the terminal user. This is the step S514
'Application non-executable display process'. Then, after this processing, the process exits this subroutine.

On the other hand, if it is determined in step S505 that the external storage device is mounted, the process proceeds to step S50.
6, the SAT function and the SAT are stored in the external storage device in the 'SAT application data determination process'.
Determine if there is an application. If it is determined that the external storage device does not have the SAT function (NO in step S506), the S
Since it is not possible to cope with the AT application and the application in the external storage device, in order to inform the user of this, in step S514, the “application execution impossible display process” is executed. Finish the subroutine.

If an SAT-compatible SMS is sent or if it is determined in step S506 that the SAT function and the SAT application are present in the external storage device, as described later, the appropriate information in the terminal body is temporarily set. A process for storing a SAT-compatible short message and a SAT application in a location (in a predetermined memory) is performed.

That is, in the above step S503, S
It is determined that the SMS is compatible with the AT application,
If the SIM does not support the SAT, the SAT-compatible SMS is temporarily downloaded to the main unit in step S507. If there is an SAT application in the external storage device (YES in step S506), the application data is temporarily downloaded to the main body terminal in step S507.

In the next step S508, the SIM is
A determination is made as to whether or not T is supported (SAT SIM determination). This determination process assumes that the external storage device has a SAT application and that the SIM is SAT-compliant. Therefore, if it is determined that the SIM is a SAT-compatible SIM, a process of moving the data of the SAT application downloaded from the external storage device to the main body in step S507 to the SIM is executed.

That is, in step S512, S
The data of the SAT application is downloaded to the IM, and thereafter, the application is executed inside the SIM (step S513). In addition, SAT-compatible SMS may be present in data downloaded from an external storage device. In such a case, step S512
Then, the SAT-compliant SMS is downloaded into the SIM. Then, in step S513, the application is executed inside the SIM, and thereafter, this subroutine ends.

On the other hand, in step S508, the SIM
If it is determined that the SAT function is not SAT-compliant, a process of downloading the SAT function from the external storage device to the terminal body is performed in step S509. And the following step S
At 510, after the application already downloaded from the external storage device at step S507 is executed by the main unit (CPU in the terminal) using the above-mentioned SAT function, the subroutine returns to the main routine.

As described above, even if the external storage device has the SAT function, if there is a SAT-compatible SIM, the execution of the application is entrusted to the SIM. By doing so, it is possible to execute a predetermined process without impairing the processing capability of the CPU of the terminal main body (by reducing the load on the main body side CPU).

However, when the SIM is not SAT-compatible, the external storage device such as a memory stick usually does not have a built-in CPU. ).

If the external storage device has a built-in CPU, it can perform the same processing as a SAT-compatible SIM inside the device.
It goes without saying that the processing performance of the terminal body does not have to be impaired.

As described above, according to the present embodiment, the SAT function is stored in the external storage device detachable from the terminal, and the SIM card connected to the terminal is
If it does not correspond to T, the S stored in the external storage device
By configuring the application to be executed using the AT function, in addition to the conventional short message, the distribution of the application corresponding to the SAT is facilitated, and the subscriber having the old SIM not supporting the SAT can be provided to the subscriber. Also, a service similar to that of a SAT-compliant SIM can be provided.

By storing an application in a removable external storage device having a relatively large storage capacity,
On a terminal, it is possible to easily execute a large-capacity (long) application than an application sent in a short message.

Further, even when the external storage device has the SAT function, if the SIM supports the SAT,
By configuring the execution of the application to be delegated to the SIM side, the processing capability of the CPU of the terminal body is not impaired,
In addition, it is possible to execute a predetermined application process while reducing the load on the main CPU. Further, since the application is downloaded to the SIM and the application is executed, a new function can be added to the terminal.

The external storage device has a large storage capacity,
For example, by adopting a memory stick, a plurality of different applications can be selectively executed or distributed, and a predetermined application can be executed on the terminal body without a SIM.

Further, by making the application itself transmitted from a communication network or the like into a short message format, the application can be executed in a form independent of the language used in the portable terminal. That is, by making the application compliant with the SAT, it is not necessary to use software suitable for the CPU of the terminal, and the application can be executed with a unique instruction set.

The present invention is not limited to the above-described embodiment, but can be variously modified without departing from the gist of the present invention. For example, in the above embodiment, an example is shown in which processing is performed on a short message service (SMS) received from a communication network (network operator or service provider). However, an external storage device (for example, (Short) distributed in a form stored on a memory stick)
The processing shown in FIG. 5 may be performed on the message.

In this way, the terminal user selects, for example, any one of a plurality of unrelated contents stored in a memory stick, and then activates the SAT to execute the application. can do.

[0081]

As described above, according to the present invention,
A mobile terminal, a first transfer unit for downloading an application of a predetermined format from a removable external storage unit,
By providing a second transfer unit that downloads a function set for operating the application from the external storage unit, and an execution unit that executes the downloaded application using the downloaded function set, the SAT is provided. SIMs that are not compatible with SAT while making it easier to distribute applications that support
Can provide the same service as a SAT-compatible SIM.

According to another aspect of the present invention, a portable terminal capable of interfacing with a SIM card is provided with a detachable external storage means and a fourth transfer for downloading an application of a predetermined format sent via a predetermined communication network. Means, a fifth transfer means for downloading a function set for operating the application from the external storage means, and an execution means for executing the downloaded application using the downloaded function set. , SAT-compliant applications distributed from the network can be executed on the terminal even for a subscriber having a SIM that does not support SAT.

Further, according to the portable terminal of another invention, the seventh transfer means for downloading the application of the predetermined format from the removable external storage means, and the predetermined format of the application transmitted via the predetermined communication network. Eighth transfer means for downloading an application, ninth transfer means for downloading a function set for operating the application from the external storage means, and the seventh and eighth functions using the downloaded function set. Executing means for arbitrarily executing the application downloaded by the transfer means can selectively execute and distribute a plurality of different applications. Can be executed.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a digital cellular system expressing a general concept of a mobile terminal and a communication network.

FIG. 2 is a block diagram showing a configuration of the mobile phone according to the present embodiment.

FIG. 3 is a block diagram showing an internal configuration of a memory stick.

FIG. 4 is a block diagram showing an internal configuration of a SIM card.

FIG. 5 is a flowchart showing an application execution processing procedure in the mobile phone according to the embodiment.

[Explanation of symbols]

101, 102: mobile phone base station, 103, 104: mobile phone, 105, 107: air interface, 106,
110: Digital interface, 108: PST
N stations, 109 ... Service provider, 220 ... I /
O, 300: memory stick, 312: flash I / F sequencer, 313: flash memory, 40
0… SIM

Claims (19)

[Claims] 1. SIM (Subscriber Identity Module)
A portable terminal capable of interfacing with a card, detachable external storage means, first transfer means for downloading an application of a predetermined format from the external storage means, and downloading a function set for operating the application from the external storage means A portable terminal comprising: a second transfer unit configured to execute the downloaded application; and an execution unit configured to execute the downloaded application by using the downloaded function set. 2. A means for judging whether or not the SIM card supports the function set, and, when it is determined that the SIM card supports the function set, And a third transfer unit that downloads the downloaded application to the SIM card, wherein the SIM card executes the application downloaded by the third transfer unit. Mobile terminal. 3. SIM (Subscriber Identity Module)
A portable terminal capable of interfacing with a card, detachable external storage means, fourth transfer means for downloading an application of a predetermined format sent via a predetermined communication network, and operating the application from the external storage means A mobile terminal comprising: a fifth transfer unit that downloads a function set to be executed; and an execution unit that executes the downloaded application by using the downloaded function set. 4. A means for judging whether or not the SIM card supports the function set, and when the SIM card is judged to support the function set, the downloaded application is The mobile terminal according to claim 3, further comprising: a sixth transfer unit that downloads the application to the SIM card, wherein the SIM card executes the application downloaded by the sixth transfer unit. 5. The apparatus according to claim 3, wherein the fifth transfer unit downloads the function set from the external storage unit when the application of the predetermined format is an application corresponding to the function set. The mentioned mobile terminal. 6. SIM (Subscriber Identity Module)
A portable terminal capable of interfacing with a card, detachable external storage means, seventh transfer means for downloading a predetermined format application from the external storage means, and a predetermined format application sent via a predetermined communication network. Eighth transfer means for downloading, a ninth transfer means for downloading a function set for operating the application from the external storage means, and the seventh transfer means using the downloaded function set.
And a executing means for arbitrarily executing the application downloaded by the eighth transfer means. 7. A means for determining whether or not the SIM card supports the function set, and when the SIM card is determined to support the function set, the downloaded application is The mobile terminal according to claim 6, further comprising: tenth transfer means for downloading to the SIM card, wherein the SIM card executes the application downloaded by the tenth transfer means. 8. The apparatus according to claim 6, wherein the seventh transfer unit downloads the function set from the external storage unit when the application of the predetermined format is an application corresponding to the function set. The mentioned mobile terminal. 9. When the SIM card does not support the function set, the execution means executes the downloaded application by using the function set downloaded from the external storage means. The portable terminal according to claim 2, 4, or 7, wherein: 10. The first and seventh transfer means selectively downloads the plurality of applications stored in the external storage means, and the execution means executes the plurality of downloaded applications. The mobile terminal according to claim 1 or 6, wherein 11. The third and tenth transfer means,
8. A method according to claim 2, wherein said plurality of applications downloaded from said external storage means are selectively downloaded, and said SIM card executes said plurality of downloaded applications.
The mentioned mobile terminal. 12. The mobile terminal according to claim 1, wherein the application in the predetermined format includes an application in a short message format. 13. The function set includes a SAT (SIM Appl.
The portable terminal according to any one of claims 1 to 11, wherein the portable terminal is a function provided by a communication terminal. 14. A SIM (Subscriber Identity Modul)
e) a method of executing an application in a portable terminal capable of interfacing with a card, wherein a first transfer step of downloading an application of a predetermined format from a removable external storage means, and a function set for operating the application from the external storage means And a step of executing the downloaded application by using the downloaded function set. 15. A step of judging whether the SIM card supports the function set, and, if it is determined that the SIM card supports the function set, the external storage means The method according to claim 14, further comprising: a third transfer step of downloading the downloaded application to the SIM card; and executing the application downloaded in the third transfer step on the SIM card. The application execution method described. 16. SIM (Subscriber Identity Modul)
e) a method of executing an application in a portable terminal capable of interfacing with a card, the method comprising: a fourth transfer step of downloading an application of a predetermined format sent via a predetermined communication network; 5. A method for executing an application, comprising: a fifth transfer step of downloading a function set for operating the function set; and an execution step of executing the downloaded application using the downloaded function set. 17. A method for determining whether the SIM card supports the function set; and determining that the SIM card supports the function set, determining whether the SIM card supports the function set. 17. The application execution method according to claim 16, comprising: a sixth transfer step of downloading to the SIM card; and a step of executing the application downloaded in the sixth transfer step with the SIM card. . 18. A Subscriber Identity Modul (SIM)
e) a method of executing an application in a portable terminal capable of interfacing with a card, comprising: a seventh transfer step of downloading an application of a predetermined format from removable external storage means; An eighth transfer step of downloading the application, a ninth transfer step of downloading a function set for operating the application from the external storage means, and the seventh transfer step using the downloaded function set.
And a step of arbitrarily executing the application downloaded in the eighth transfer step. 19. determining whether the SIM card corresponds to the function set; and determining that the SIM card corresponds to the function set, determining whether the SIM card corresponds to the function set. The method according to claim 18, further comprising: a tenth transfer step of downloading to the SIM card; and a step of executing the application downloaded in the tenth transfer step with the SIM card. .