KR100825866B1 - Mobile communication terminal including usim cards and usim card switching method thereof - Google Patents

Abstract

A mobile terminal having a plurality of USIM(Universal Subscriber Identity Module) cards and a method for changing USIM cards of the mobile terminal are provided to automatically change an authentication target USIM card according to a phone number inputted for call communication to thus prevent an authentication target card from being erroneously set by mistake. The first and second USIM cards(110,120) have their own authentication data and store a phone book. A storage unit(150) stores phone books read from the first and second USIM cards in each different memory region. A controller(170) reads the phone books from the USIM card and, stores them in the storage unit. If a phone number for a call is inputted, the controller searches the phone books of the storage unit to read authentication data of a USIM card storing the inputted phone number among the first and second USIM cards, and receives authentication from a wireless communication network by using the read authentication data.

Description

Mobile communication terminal having a plurality of GB cards and a method for switching the US MB card thereof

The present invention relates to a mobile communication terminal having a plurality of USIM cards and a method for converting the USIM card thereof, and in particular, automatically converts a USIM card to be authenticated according to a phone number input during a call using the phone numbers stored in the USIM cards. The present invention relates to a mobile communication terminal and a method for switching the USIM card thereof.

Modern people live and interact with many people in a culturally, economically and socially diversified society. Such relationships with various peoples widen the range of experiences between people, but make it difficult for them to continue to meet important people for a long time and increase their depth. In particular, in the busy day-to-day work of modern people, there are a lot of people who come into contact with each other and work in private. In order to improve such a problem with the development of information and communication technology and electronic technology, mobile communication terminals such as mobile phones, PDAs (Personal Digital Assistants), and smart phones have emerged.

When the mobile communication terminal receives the wireless communication service, the mobile communication terminal must be authenticated by the wireless communication network with the authentication data of the built-in USIM card. In general, the mobile communication terminal has one socket for mounting the USIM card. If the card is to be replaced, there is an inconvenience that the other USIM card should be mounted in the socket after removing the USIM card mounted in the socket.

In order to solve such inconvenience, a technology for mounting a plurality of USIM cards simultaneously by forming a plurality of sockets in a mobile communication terminal has been developed. In this way, a mobile communication terminal having a plurality of USIM cards is set to a default USIM card to be authenticated when a separate control command is not input from a user. Therefore, if the user wants to switch the USIM card to be authenticated in the mobile terminal, there is still the inconvenience that the user must switch the USIM card to be authenticated by operating keys while the mobile terminal is in use, and the user directly identifies the USIM card. Since the authentication target card has to be set, there is a problem that an unwanted USIM card is set as an authentication target card when a user causes an error in distinguishing USIM cards.

The present invention is to solve the above problems, an object of the present invention is a mobile communication terminal that can automatically switch the authentication target USIM card according to the telephone number entered during the call using the phone numbers stored in the USIM card And a USIM card switching method thereof.

Another object of the present invention is to automatically switch the USIM card to be authenticated according to a telephone number input during a call, so that the mobile terminal can easily select a USIM card to be authenticated among a plurality of USIM cards mounted in the mobile terminal. And a USIM card switching method thereof.

Still another object of the present invention is to automatically switch the USIM card to be authenticated according to the telephone number input during the call, thereby switching the mobile communication terminal and its USIM card which can prevent the authentication target card from being incorrectly set due to a user's error. To provide a way.

Mobile communication terminal of the present invention for achieving the above object, a plurality of USIM cards having their own authentication data and stores the phone book; A storage unit for storing the phone books read from the USIM cards in different memory areas; Reads the phone books stored in the USIM cards and stores them in the storage unit when booting, and when a phone number for a call is inputted, retrieves the phone books of the storage unit and stores the USIM cards stored in the USIM cards. And a controller which reads the authentication data of the card and authenticates the wireless communication network by using the read authentication data.

USIM card switching method of the mobile communication terminal of the present invention, the first step of alternatively storing the input telephone number in a plurality of USIM cards; A second step of reading the telephone books stored in the USIM cards when the mobile communication terminal is booted and storing them in different memory areas of the storage unit; A third step of searching for a phone book of the storage unit to find a USIM card storing a phone number input among the USIM cards, and reading authentication data of the found USIM card when a phone number for a call is input; And a fourth step of authenticating with the wireless communication network by using the read authentication data.

The mobile communication terminal and the USIM card switching method of the present invention having the above-described configuration automatically converts a USIM card to be authenticated according to a telephone number input during a call using the phone numbers stored in the USIM cards, thereby allowing the mobile terminal to switch within the mobile communication terminal. It is possible to easily select a USIM card to be authenticated among a plurality of mounted USIM cards for the convenience of the user, and to prevent the wrong setting of the card to be authenticated due to the user's error.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 is a block diagram of a mobile communication terminal having a plurality of USIM cards according to an embodiment of the present invention.

Referring to FIG. 1, the mobile communication terminal 100 of the present invention includes first and second USIM authentication cards 110 and 120, a user input unit 130, a display unit 140, a storage unit 150, and a radio frequency. It may be configured to include a processor 160, a controller 170 and the like.

The first USIM card 110 may include an authentication module 111 having first authentication data, a memory 112 for storing a telephone number, and the like.

The first authentication data stored in the authentication module 111 is used for the authentication procedure required for the mobile communication terminal 100 to receive a wireless communication service through a wireless communication network, and used for authentication of the first USIM card 110. do.

The memory 112 stores a first phone book consisting of phone numbers transmitted from the control unit 170, and the first phone number is read out by the control unit 170 when the mobile communication terminal 100 is booted and stored. Stored at 150.

The second USIM card 120 may include an authentication module 121 having second authentication data, a memory 122 for storing a telephone number, and the like.

The second authentication data stored in the authentication module 121 is used for the authentication procedure required for the mobile communication terminal 100 to receive a wireless communication service through a wireless communication network (not shown), and the second USIM card 120. Is used for authentication.

The memory 122 stores a second phone book consisting of phone numbers transmitted from the control unit 170, and the second phone number is read out by the control unit 170 when the mobile communication terminal 100 is booted and stored. Stored at 150.

Here, the mobile communication terminal 100 is disclosed as having only two USIM cards 110 and 120, but is not limited thereto. The mobile communication terminal 100 may store two or more USIM cards. .

The first and second USIM cards 110 and 120 are used as an authentication means for receiving a wireless communication service, and are authenticated through the first USIM card 110 and when authenticated through the second USIM card 120. Fees for providing a wireless communication service may be charged differently. For example, when authenticating through the first USIM card 110, the wireless communication service fee is charged directly to the user of the mobile communication terminal 100, otherwise, when authenticating through the second USIM card 120, The wireless communication service fee may be charged to the corporation in which the user of the mobile communication terminal 100 works.

As such, the mobile communication terminal 100 of the present invention may be authenticated using a plurality of USIM cards and alternatively using USIM cards according to the inputted telephone number of the other party. Accordingly, the present invention allows one mobile communication terminal to be used separately for personal and corporate use.

The user input unit 130 includes function keys for inputting various functions, numeric keys for inputting numbers, symbol keys for inputting various symbols, and character keys for inputting characters. That is, the user inputs a phone number to be stored using the user input unit 130, a phone number of the other party to be called, a call instruction command, and a command about selecting a USIM card.

The display unit 140 may be implemented as a display device such as a liquid crystal display (LCD) or an organic light emitting diode display (OLED), and displays a text signal and / or an image signal supplied by the controller 170. The display unit 140 displays a screen requesting selection of a USIM card.

The storage unit 150 may be implemented as a memory device such as an EEPROM, a NAND memory, a flash memory, or the like, and may store text information, image information, and the like transferred from the controller 170. More specifically, the storage unit 150 includes a first phone book read from the memory 112 of the first USIM card 110 and a second phone book read from the memory 122 of the second USIM card 120. Stored. Here, as shown in FIG. 2, the storage unit 150 is divided into a first memory area and a second memory area by the controller 170 so that the first telephone directory is stored in the first memory area and the second memory area is stored in the second memory area. The second phone book is stored.

The radio frequency processor 160 converts a radio frequency signal received through an antenna from a wireless communication network into a baseband signal and transmits the signal to the control unit 170, and converts the baseband signal output from the control unit 170 into a radio frequency signal. Transmit to wireless communication network through antenna. The radio frequency processor 160 transmits the first authentication data of the first USIM card 110 or the second authentication data of the second USIM card 120 transmitted from the control unit 170 to the wireless communication network. The call signal transmitted from 170 is transmitted to the wireless communication network.

The controller 170 registers the telephone number and switches USIM cards as described below.

When the user inputs a phone number to be stored using the keys of the user input unit 130 and selects one USIM card among the first and second USIM cards 110 and 120, the user inputs the phone number into the memory of the selected USIM card. Stores the phone number and simultaneously registers the phone number entered in the phone book read from the memory of the selected SIM card. More specifically, the control unit 170 stores the first phone book in the first USIM card 110 and the second phone book in the second USIM card 120, the structure of the first and second phone book Is as shown in FIG. 3. As shown in FIG. 3, the first and second phone books may comprise a plurality of phone number files, for example, EF _PBR , EF _EXT1 , EF _UID , and the like.

The structure of the telephone number files constituting the first and second telephone books is formed as shown in FIG. 4, wherein the structure of the telephone number files is a file name, components of the file, detailed description of the components, components Size, and remark items describing additional information about the components. Here, the detailed description of the components may include the representative name, representative telephone number, length, index, etc. of the telephone number. The size of the components may be expressed in units of bytes. In addition, the remarks item of the components may include the name of the telephone number user, a telephone number, and the like.

When the mobile communication terminal 100 is booted, the controller 170 stores the first phone book stored in the memory 112 of the first USIM card 110 and the second stored in the memory 122 of the second USIM card 120. The phone book is read, and as shown in FIG. 2, the first phone book is stored in the first memory area of the storage unit 150 and the second phone book is stored in the second memory area of the storage unit 150.

With the phonebooks of the first and second USIM cards 110 and 120 stored in the storage 150 of the mobile communication terminal 100 as described above, the user uses the keys of the user input unit 130 to call the other party's phone number. Inputting a call instruction command, the control unit 170 searches the first and second memory areas of the storage unit 150, reads the authentication data from the authentication module of the USIM card that stores the input telephone number, and After the authentication from the wireless communication network using the authentication data read and transmits the call signal for the call to the input telephone number.

If the input telephone number is a telephone number stored in both the first and second USIM cards 110 and 120, the controller 170 selects one of the first and second USIM cards 110 and 120. A screen to be displayed is displayed on the display unit 140. In this state, when a user selects one of the first and second USIM cards 110 and 120, the control unit 170 uses the authentication data read by reading authentication data from the authentication module of the selected USIM card. After receiving authentication from the wireless communication network, the call signal for the call is transmitted to the input telephone number.

On the other hand, when the power of the mobile communication terminal 100 is turned off, the controller 170 stores the first phone book stored in the first memory area of the storage unit 150 and the second phone stored in the second memory area of the storage unit 150. Delete the book.

5 is a flowchart illustrating a process of registering a telephone number in a USIM card equipped with a mobile communication terminal according to an embodiment of the present invention.

Referring to FIG. 5, first, when a user inputs a phone number to be stored using keys of the user input unit 130 (S101), the controller 170 displays a list of USIM cards mounted as shown in FIG. 6. The display unit 140 displays the display (S102).

In this state, when the user selects the USIM card to store the phone number using the key of the user input unit 130 (S103), the control unit 170 stores the phone number entered in the memory of the selected USIM card and at the same time The telephone number entered in the telephone directory read from the memory of the selected USIM card is registered (S104).

For example, when the user selects the first USIM card 110 while the list of USIM cards is displayed, the controller 170 displays the telephone number input to the memory 112 of the selected first USIM card 110. The telephone number stored and registered at the same time in the first telephone directory read from the memory 112 of the selected first USIM card 110 is registered.

If the user selects the second USIM card 120 while the list of USIM cards is displayed, the controller 170 stores the telephone number entered in the memory 122 of the selected second USIM card 120. At the same time, the telephone number entered in the first telephone directory read from the memory 112 of the selected second USIM card 120 is registered.

7 is a flowchart illustrating a process of switching a USIM card by a mobile communication terminal according to an embodiment of the present invention.

Referring to FIG. 7, first, when a mobile communication terminal 100 is booted by a user (S201), the controller 170 controls the first phone book and the second USIM stored in the memory 112 of the first USIM card 110. Read the second phone book stored in the memory 122 of the card 120 (S202), and store the first and second phone books read by dividing the memory area of the storage unit 150 as shown in FIG. (S203). In the storing process (S203), the controller 170 stores the first phone book read from the first USIM card 110 in the first memory area of the storage 150 and read from the second USIM card 120. The second phone book is stored in the second memory area of the storage unit 150.

As described above, in a state in which phonebooks of the first and second USIM cards 110 and 120 are stored in the storage 150 of the mobile communication terminal 100, the user uses the keys of the user input unit 130 to call the other party's phone. When a number is input and a call instruction command is input (S204), the controller 170 searches the first and second memory areas of the storage unit 150 (S205), and the input telephone number is the first and second USIM. It is determined whether any one of the cards 110 and 120 is stored only in the USIM card or whether the input telephone number is a phone number stored in both the first and second USIM cards 110 and 120 (S206).

If the determined phone number is the phone number stored only in the first USIM card 110, the controller 170 reads the first authentication data from the authentication module 111 of the first USIM card 110 (S207). After authentication from the wireless communication network using the first authentication data of the first USIM card 110 read (S208), the control unit 170 transmits a call signal for a call to the input telephone number (S209).

If the determined phone number is the phone number stored only in the second USIM card 120, the controller 170 reads the second authentication data from the authentication module 121 of the second USIM card 120 (S210), After receiving authentication from the wireless communication network using the second authentication data of the second USIM card 120 read (S211), the control unit 170 transmits a call signal for a call to the input telephone number (S212).

If the determined telephone number is a telephone number stored in both of the first and second USIM cards 110 and 120, the controller 170 determines that the input telephone number is in both the first and second USIM cards 110 and 120. A text message indicating that it is stored is displayed on the display unit 140 and a screen for selecting one of the first and second USIM cards 110 and 120 is selected on the display unit 140 ( S213).

At this time, if the user selects one of the first and second USIM card (110, 120) of the USIM card (S214), the control unit 170 reads the authentication data from the authentication module of the selected USIM card (S215), After authentication from the wireless communication network using the on authentication data (S216), the control unit 170 transmits a call signal for a call to the input telephone number (S217).

When the power of the mobile communication terminal 100 is turned off, the controller 170 controls the first phone book stored in the first memory area of the storage 150 and the second phone stored in the second memory area of the storage 150. Delete the book.

Meanwhile, the mobile communication terminal of the present invention is disclosed as mounting two USIM cards, but the present invention is not limited thereto, and the technical spirit of the present invention as described above may be applied to a mobile communication terminal equipped with two or more USIM cards. It applies.

Although the technical spirit of the present invention has been described in detail according to the above-described preferred embodiment, it should be noted that the above-described embodiment is for the purpose of description and not of limitation. In addition, those skilled in the art will understand that various embodiments are possible within the scope of the technical idea of the present invention.

1 is a block diagram of a mobile communication terminal having a plurality of USIM cards according to an embodiment of the present invention.

FIG. 2 is an exemplary view illustrating a pattern in which first and second telephone directories are stored in a storage unit illustrated in FIG. 1.

3 is a diagram showing the structure of a phone book stored in the first and second USIM cards shown in FIG.

4 is a diagram showing the structure of a phone number file constituting the phone book shown in FIG.

5 is a flowchart illustrating a process of registering a telephone number with a USIM card equipped with a mobile communication terminal according to an embodiment of the present invention.

6 is an exemplary screen illustrating a state in which a mobile communication terminal according to the present invention displays a list of USIM cards.

7 is a flowchart illustrating a process of switching a USIM card by a mobile communication terminal according to an embodiment of the present invention.

Claims (12)

A plurality of USIM cards having their authentication data and storing a phone book; A storage unit for storing the phone books read from the USIM cards in different memory areas; And When booting, the phonebooks stored in the USIM cards are read out and stored in the storage unit. When a phone number for a call is input, the phonebooks of the storage unit are searched and the phone numbers entered among the USIM cards are stored. And a control unit configured to read authentication data and authenticate the wireless communication network using the read authentication data. The method of claim 1, wherein the plurality of USIM cards, respectively, An authentication module having its own authentication data; And And a memory for storing a telephone book. A mobile communication terminal having a plurality of USIM cards. The method of claim 1, wherein the control unit, And dividing a memory area of the storage unit, and storing telephone books read from the USIM cards in different memory areas of the storage unit. 4. The phone book of claim 3, wherein the phonebooks are respectively: It consists of a number of phone number files, The phone number files, respectively, With a plurality of USIM cards, characterized in that it includes a file name, the components of the file, a detailed description of the components, the size of the components, and a remarks item describing additional details for the components. Mobile terminal. The method of claim 1, wherein the control unit, When a phone number to be stored is entered and a USIM card for storing the phone number is selected, the phone number entered in the selected USIM card is stored and simultaneously read from the selected USIM card among the phone books stored in the storage unit. A mobile communication terminal having a plurality of USIM cards, characterized in that the phone number is registered in the phone book. The method of claim 1, wherein the control unit, When the power of the mobile communication terminal is turned off, the mobile communication terminal having a plurality of USIM cards, characterized in that for deleting the phone book stored in the storage. The method of claim 1, wherein the control unit, If the phone number entered for the call is stored in two or more USIM cards, the authentication data of the USIM card selected by the user among the USIM cards in which the entered phone number is stored is read, and the read authentication data is used. The mobile communication terminal having a plurality of USIM cards, characterized in that the authentication by the wireless communication network. A first step of alternatively storing the input telephone number in a plurality of USIM cards; A second step of reading the telephone books stored in the USIM cards when the mobile communication terminal is booted and storing them in different memory areas of the storage unit; A third step of searching for a phone book of the storage unit to find a USIM card storing a phone number input among the USIM cards, and reading authentication data of the found USIM card when a phone number for a call is input; And And a fourth step of authenticating with the wireless communication network by using the read authentication data. The method of claim 8, wherein the first step, A first step of displaying a list of USIM cards mounted in the mobile communication terminal when a phone number to be stored is input; And If a USIM card for storing a phone number is selected, the phone number is stored in the selected USIM card and simultaneously the registered phone number is registered in a phone book read out of the selected USIM card among the phone books of the storage unit. Step 1 to 1-2; USIM card switching method of a mobile communication terminal, characterized in that comprises a. 10. The method of claim 9, wherein each of the telephone books is It consists of a number of phone number files, The phone number files, respectively, USIM card conversion of a mobile communication terminal, comprising a file name, the components of the file, a detailed description of the components, the size of the components, and a remarks item that describes the additional information about the components Way. The method of claim 8, wherein the third step, A third step of finding a USIM card in which the input telephone number is stored among the USIM cards by searching the phone books of the storage unit when a telephone number for a call is input; Step 3-2 of reading the authentication data of the found USIM card if there is only one USIM card found; If the found USIM card is two or more, displaying a screen for selecting one USIM card among the found USIM cards; And And if the one USIM card is selected on the displayed screen, step 3-4 of reading the authentication data of the selected USIM card. The method according to any one of claims 8 to 11, If the power of the mobile communication terminal is turned off, the fifth step of deleting the phone book stored in the storage; USIM card switching method of the mobile communication terminal further comprises.

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