JP4049638B2 - Dual communication system portable terminal device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a dual communication system portable terminal device that can use two communication systems as a 2G (PDC) terminal and a 3G (W-CDMA) terminal.
[0002]
[Prior art]
In recent years, dual portable terminals have been developed that include 2G (PDC: Personal Digital Cellular) and 3G (W-CDMA: Wideband-Code Division Multiple Access) functions in the same terminal. This is to allow the user to select which one of the two functions is determined to be optimal and to select a function that can be transmitted and received depending on the region.
[0003]
This dual mobile terminal is being developed by using a common phone number for 2G and 3G. In this case, the ID information of 2G and 3G should be designed so that it cannot be separated.
[0004]
[Problems to be solved by the invention]
However, since 3G (W-CDMA) ID information, telephone number information, and the like are recorded on the USIM card, assuming that the USIM card can be separated, when this USIM is attached to another 3G terminal or the like, An inconvenient situation occurs in which there are terminals having the same number as the dual terminal and the 3G terminal.
[0005]
For this reason, in order to make it impossible to separate the ID information of 2G & 3G Dual terminals, a method has been considered in which the USIM card is completely fixedly mounted inside the terminal so that it cannot be physically removed. However, this method does not comply with the 3GPP specifications, and there is a problem that reuse of the USIM card itself and diversion of data held in the USIM such as telephone directory data cannot be easily performed.
[0006]
Accordingly, an object of the present invention is to provide a dual communication system portable terminal device that prevents the same authentication data from operating simultaneously with other terminals in two communication systems.
[0007]
[Means for Solving the Problems]
The present invention provides a dual communication system portable terminal device that can access two communication systems, an input unit through which a user inputs personal authentication data, a storage unit that stores personal authentication data of the communication system, and the input unit. When a user inputs personal authentication data of one communication system, a unique conversion process using the personal authentication data of another communication system recorded in the storage unit is performed on the input arbitrary personal authentication data. And a control unit for generating unique personal authentication data.
[0008]
The present invention further includes removable storage means for storing the unique personal authentication data, and the control unit records the unique personal authentication data in the storage means for new registration or change registration, or the storage means. The unique personal authentication data recorded on the personal information is compared with the unique personal authentication data obtained from the personal authentication data input by the user, and the communication system can be used only when they match.
[0009]
Here, the communication system is PDC and W-CDMA, the storage means is a USIM card, and the personal authentication data is ID data in the case of PDC, and a PIN code in the case of W-CDMA. Yes, the USIM card stores a PIN code.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing a schematic structure of a 2G & 3G dual portable terminal according to an embodiment of the present invention. FIG. 2 is a flowchart showing operation control when the PIN code is changed in the dual portable terminal. FIG. 3 is a flowchart showing operation control when a PIN code is input and authentication of a USIM card is performed in the dual mobile terminal.
[0011]
The 2G & 3G dual mobile terminal is a dual communication system mobile terminal capable of transmitting and receiving two communication systems of 2G (PDC) and 3G (W-CDMA) as described in the related art.
[0012]
In FIG. 1, 1 is a display device such as an LCD for displaying each information, 2 is a key input unit for inputting a PIN code (personal authentication number), and 3 is a USIM card. USIM interface unit for performing communication between USIM and control unit, 4 is a control unit for controlling each device unit of Dual mobile terminal, PIN code conversion processing, etc., 5 is a 2G ID A storage unit for storing information used in the terminal such as data (personal authentication data), 6 is ID data for 2G used for PIN code unique conversion processing, and 7 performs wireless communication control and the like. It is a radio control part for this. The USIM card is a detachable portable storage unit that stores unique personal authentication data called a unique PIN code, which will be described later.
[0013]
The PIN code change processing operation in the 2G & 3GDual portable terminal configured as described above will be described with reference to the flowchart of FIG.
In step A-1, the user inputs the PIN code to be changed from the input unit 2. This PIN code to be changed is assumed to be a user PIN. When the input process ends, the process proceeds to step A-2. The 2G ID data 6 is recorded in the storage unit 5 as unique information that is different for each terminal. In step A-2, the control unit 4 performs a unique conversion process using the 2G ID data 6. To the user PIN. Here, the unique conversion process is assumed to be f (x). The unique personal authentication data generated by f (x) using 2G ID data for the user PIN is assumed to be a card PIN.
[0014]
In step A-3, the control unit 4 transmits the card PIN generated in step A-2 to the USIM card via the USIM interface 3 instead of the user PIN input by the user in step A-1.
In step A-4, if the PIN code change is successful according to the response from the USIM card, the card PIN is recorded in the USIM card, and the process changes to step A-5 due to some problem such as a transmission error or a USIM card error If it fails, the process proceeds to step A-6.
[0015]
In step A-5, the fact that the PIN code has been successfully changed is displayed on the display unit 1, and the process proceeds to step A-7. In step A-6, the fact that the PIN code change has failed is displayed, and the process proceeds to step A-7.
In step A-7, the PIN code changing operation is completed, the process returns to the normal operation, and the process is terminated.
[0016]
According to this embodiment, when the user changes the PIN code, unique information using unique information that is different for each terminal recorded in the terminal, such as 2G ID information, is used for the PIN code input by the user. By performing the conversion process, a unique PIN code is generated, and the generated unique PIN code is recorded on the USIM card. Thus, by changing the PIN code, the PIN code used by the user and the PIN code recorded on the USIM card can be made different.
[0017]
In this way, by making the PIN code used by the user different from the PIN code actually recorded on the USIM card, the USIM card used in the dual terminal is removed, and the other dual terminal or 3G terminal Even if a USIM card is attached and an attempt is made to authenticate the USIM card, the PIN code generated by performing the unique conversion process using the unique information that differs depending on the terminal is different for each terminal. Accordingly, since authentication of the USIM card fails, it is possible to prevent terminals having the same number from operating simultaneously.
[0018]
FIG. 3 illustrates an operation when a user inputs a PIN code and performs a PIN code authentication process in the dual portable terminal having the above configuration.
[0019]
In step B-1, the user inputs the user PIN as the PIN code to be authenticated. When the input process ends, the process proceeds to step B-2.
Since the 2G ID data 6 is recorded in the storage unit 5 which is unique information different for each terminal for the input user PIN, in step B-2, the control unit 4 causes the 2G ID data 6 to be recorded. A unique conversion process f (x) using the ID data 6 is performed. Card PIN data is generated by performing the f (x) process.
[0020]
In step B-3, a PIN code authentication request by the card PIN generated by the unique conversion process f (x) in step B-2 is transmitted to the USIM card, and the process proceeds to step B-4.
In step B-4, if the PIN code matches according to the response of the USIM card, the authentication of the PIN code by the control unit 4 is successful, and the process proceeds to step B-5. If the card is used for another 3G terminal or Dual terminal, an error occurs because the PIN code obtained by f (x) is different from the expected value, and the process proceeds to Step B-6.
[0021]
In step B-5, the control unit 4 enables use in the normal mode in which the normal transmission operation is possible if the PIN code authentication is successful, and the process proceeds to step B-9.
In step B-6, the number of errors that failed to authenticate the PIN code is increased by 1, and the process proceeds to step B-7.
[0022]
In step B-7, if the number of PIN code authentication errors is less than 3, the process proceeds to step B-1, and the PIN code authentication process is continued. If the number of errors is 3, authentication fails and the process proceeds to step B-8.
In step B-8, since the PIN code authentication process has failed, the emergency call mode in which only an emergency call can be made is made available, and the process proceeds to step B-9.
In step B-9, the process returns to the normal operation in the normal mode and the emergency call mode according to the result of the PIN code authentication process, and the process is completed.
[0023]
In this way, the PIN code input by the user at the time of authentication is subjected to unique conversion processing using 2G ID data, which is unique information recorded in the terminal, and transmitted to the card. By generating the PIN code, the USIM card can be authenticated in the dual terminal that has generated the PIN code. Furthermore, when another card is used, the PIN code sent to the card generated by performing the unique conversion process using the unique data of the input PIN code and the unique data of the Dual terminal will be different. When different cards are installed, it is possible to avoid the problem that two different telephone numbers exist in the same terminal.
[0024]
【The invention's effect】
According to the present invention, by performing unique conversion processing using personal authentication data stored in another communication system for personal authentication data input by the user, terminal-specific personal authentication data is generated. For example, even if the user inputs the same data as that of another terminal, it is possible to prevent the same authentication data from being used by forming data unique to the terminal.
In addition, by storing this unique personal authentication data in a removable storage means such as a card type, even if the user uses the same personal authentication data for each terminal, the unique personal authentication can be used only on a specific terminal. Data will be used. Therefore, even if you try to authenticate by attaching this storage means to another terminal, it is unique personal authentication data that is unique information that differs depending on the terminal, so authentication fails and it is possible that terminals with the same data do not operate simultaneously Can be.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an embodiment of a dual communication system mobile phone of the present invention.
FIG. 2 is a flowchart illustrating operation control when a control unit changes a PIN code.
FIG. 3 is a flowchart showing operation control when a control unit authenticates a USIM card with a PIN code input.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Display part 2 Input part 3 USIM interface part 4 Control part 5 Memory | storage part 6 ID data 7 Wireless control part

Claims (4)

In a dual communication system portable terminal device accessible to two communication systems,
An input unit for a user to input personal authentication data;
A storage unit for storing personal authentication data of the communication system;
When the user inputs the personal authentication data of one communication system by the input unit, the input unit uses the personal authentication data of another communication system recorded in the storage unit for any input personal authentication data. A dual communication system portable terminal device comprising: a control unit that performs conversion processing and generates unique personal authentication data. Furthermore, it has a removable storage means for storing the unique personal authentication data,
The dual communication system portable terminal device according to claim 1, wherein the control unit records the unique personal authentication data in the storage unit and performs new registration or change registration. Furthermore, it has a removable storage means for storing the unique personal authentication data,
The control unit compares the unique personal authentication data recorded in the storage unit with the unique personal authentication data obtained from the personal authentication data input by the user, and enables the use of the communication system only when they match. The dual communication system portable terminal device according to claim 1, wherein: The communication system is PDC and W-CDMA,
The storage means is a USIM card,
The personal authentication data is ID data in the case of PDC, PIN code in the case of W-CDMA,
4. The dual communication system portable terminal device according to claim 1, wherein a PIN code is stored in the USIM card.

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