KR20030056944A - Cdma terminal capable of accepting gsm sim and automatically setting international call phone number, and method thereof, and roaming service system for providing international call phone number - Google Patents

Abstract

PURPOSE: A GSM(Global System for Mobile communication) SIM(Subscriber Identity Module) acceptable CDMA(Code Division Multiple Access) terminal capable of automatically setting an international call recognition number, a method for automatically setting the international call recognition number, and a roaming service system for providing the international call recognition number are provided to allow an IRGS(International Roaming Gateway System) to transmit a data burst message including information on the internal call recognition number to the CDMA terminal, so that a GSM subscriber easily sends an international call in a CDMA service area. CONSTITUTION: An international call recognition number storage(1500) stores an international call recognition number. A controller(1540) receives an internal call recognition number transmitted from an IRGS through a CDMA system to store the received number in the international call recognition number storage(1500). And if a specific key for an international phone call is inputted by a user, the controller(1540) replaces the specific key by the stored international call recognition number to perform an international call connection request. A wireless transceiver(1530) performs wireless communication with the CDMA system under control of the controller(1540). A SIM card interface(1580) provides a user interface under control of the controller(1540). And a memory(1550) includes the international call recognition number storage(1500), and stores data necessary for controlling a CDMA terminal.

Description

CSM TERMINAL CAPABLE OF ACCEPTING GSM SIM AND AUTOMATICALLY SETTING INTERNATIONAL CALL PHONE NUMBER, AND METHOD THEREOF, AND ROAMING SERVICE SYSTEM FOR PROVIDING INTERNATIONAL CALL PHONE NUMBER}

The present invention relates to a Code Division Multiple Access (CDMA) terminal capable of accommodating a Global System for Mobile communications (GSM) subscriber identity module (SIM), and more particularly, a CDMA terminal capable of accommodating a GSM SIM capable of automatically setting an international call identification number, and A method for automatically setting an international call identification number and a roaming service system for providing an international call recognition number.

Recently, with the rapid increase in the demand for mobile communication, the demand for global roaming that can be called with a single number anywhere in the world is increasing.

If a current GSM service subscriber enters Korea and wants to receive CDMA service, he or she should rent a new terminal from an immigration airport lounge or a mobile communication agency and use a new subscriber number instead of his own number.

In particular, in the GSM method, a SIM card containing a subscriber profile is mounted on a terminal. In the mobile communication using the SIM card, any country that provides a GSM type service can borrow a terminal accommodating the SIM and attach its SIM card to the terminal to use its own number. However, in Korea, which provides a CDMA type of service different from the GSM type, there is a problem that GSM subscribers cannot use their own numbers using their SIM cards.

In order to solve this problem, a CDMA terminal capable of roaming, that is, a GSM SIM accommodating CDMA terminal, has been developed by using a GSM SIM card and using a CDMA network.

Therefore, when a GSM service subscriber uses a CDMA terminal capable of accommodating the GSM SIM even in a CDMA service area, a call can be made with a counterpart not only in the CDMA service area but also in the GSM service area by attaching his SIM card.

On the other hand, when making an international call using a GSM terminal in the GSM service method, an international call recognition number or an international call recognition number, for example, "001", "002", "00345", etc. used in a domestic CDMA service area, etc. You can make an international call by directly entering the number of your country, followed by "country code", "area code", "telephone number", or you do not know the international call identification number, or press the "+" You can make an international call by pressing and continuing to enter the form "country code" "region code" "telephone number".

In the latter case, since the GSM service subscriber accesses the international call using the "+" key irrespective of the international call identification number, the GSM service subscriber can provide convenience in terms of the GSM service subscriber.

However, the CDMA service does not automatically set up an international call recognition number using a specific key as described above. There is a problem that international phone calls are possible only when the international call recognition number is provided.

Accordingly, an object of the present invention is to solve the above-mentioned problems, and automatically sets an international call recognition number so that a GSM service subscriber can easily make an international call even in a CDMA service area. The present invention provides a GSM SIM-accepting CDMA terminal, a method for automatically setting an international call recognition number, and a roaming service system for providing an international call recognition number.

1 is a schematic diagram of a roaming service system using a CDMA terminal capable of accommodating GSM SIM according to an embodiment of the present invention.

2 is a block diagram of a CDMA terminal capable of accepting a GSM SIM for automatically setting an international call identification number according to an embodiment of the present invention.

3 is a flowchart of a method for automatically setting an international call recognition number according to an embodiment of the present invention.

4 is a flowchart of an international call recognition number storing step shown in FIG.

GSM SIM accommodating CDMA terminal capable of automatically setting an international call recognition number according to a feature of the present invention for achieving the above object,

It is connected to GSM system through IRGS (International Roaming Gateway System) which converts signals so that signals can be exchanged between systems and interlocks with CDMA system that provides roaming service for GSM service subscribers. CDMA terminal that can accommodate the GSM SIM to set,

An international call recognition number storage unit for storing an international call recognition number; And receives an international call identification number transmitted from the IRGS through the CDMA system, stores the international call identification number in the international call identification number storage unit, and when a specific key for an international telephone call is input from a user, the international call instead of the specific key. And a control unit for performing an international call connection request by substituting the international call recognition number stored in the recognition number storage unit.

The GSM SIM accommodating CDMA terminal capable of automatically setting the international call identification number includes a wireless transceiver for performing wireless communication with the CDMA system; A user interface unit providing an interface with a user; And a data storage unit for storing the data necessary for controlling the CDMA terminal capable of accommodating the GSM SIM.

The international call identification number related data transmission is performed by CDMA data burst message transmission.

According to another aspect of the present invention, a method for automatically setting an international call recognition number in a CDMA terminal capable of accommodating GSM SIM,

A CDMA terminal capable of accommodating GSM SIM is connected to a GSM system through IRGS that performs signal conversion so that signal exchange between systems is possible. As an automatic setting method,

a) receiving an international call identification number sent in the IRGS via the CDMA system; b) storing the received international call identification number in a specific memory; c) determining whether there is a specific key input for an international telephone call from the user; And d) if it is determined in step c) that there is said specific key input, replacing with the specific key an international call recognition number stored in step b).

Before step a), determining whether the SIM card of the GSM service subscriber is mounted; If it is determined in the step that the SIM card is mounted, reading the GSM service subscriber related information stored in the SIM card; And

Transmitting the read GSM service subscriber related information to the IRGS via the CDMA system.

Roaming service system for providing an international call identification number according to another feature of the present invention,

An IRGS that converts signals to enable signal exchange between systems, and includes an international call identification number storage unit for storing international call identification numbers; And a CDMA system connected to a GSM system through the IRGS to provide a roaming service for a CDMA terminal capable of accommodating GSM SIM, wherein the IRGS subscriber information is transmitted from the CDMA terminal capable of accommodating the GSM SIM. When authentication is requested by the, characterized in that for transmitting the authentication request message including the international call identification number stored in the international call identification number storage unit to the CDMA terminal that can accommodate the GSM SIM.

The international call identification number stored in the international call identification number storage unit of the IRGS may be arbitrarily changed by the CDMA system service provider.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic diagram of a roaming service system using a CDMA terminal capable of accommodating GSM SIM according to an embodiment of the present invention.

As shown in FIG. 1, a roaming service system using a CDMA terminal capable of accommodating GSM SIM according to an embodiment of the present invention includes a CDMA system 100, a GSM system 200, and a CMDA system 100 and a GSM system ( 200) includes an IRGS (International Roaming Gateway System, 300) connecting the two.

Here, the CDMA system 100 is connected to the CDMA network 110 and is connected to the Home Location Register (HLR) 120, which stores the subscriber's location information and service information, and the CDMA network 110. (Mobile Switching Center, 130), and the base station system (BSS) 140 connected to the MSC 130 and responsible for the interface function between the wired network and the CMDA terminal 150 that can accommodate the GSM SIM.

In the CDMA system 100, a plurality of HLRs 120 and MSCs 130 are provided, and they are linked to each other to perform subscriber management and call exchange functions.

Several MSCs 130 may be connected to one HLR 120, and a plurality of BSSs 140 may be connected to one MSC 130. In addition, the component may include an authentication center performing an authentication function of the terminal, a VLR (Visit Location Register (not shown)) mainly located inside the MSC 130 and storing the visitor's information.

Meanwhile, the GSM system 200 is connected to the GSM network 210 and is connected to the HLR 220 and the GSM network 210 for storing the location information and service information of the subscriber, and the authentication center for the authentication function of the terminal ( Authentication Center, hereinafter referred to as AuC) 230. Here, the GSM system 200 includes the MSC, the BSS, and the like like the CDMA 100 system, but the detailed description is omitted since it is not used in the embodiment of the present invention.

The IRGS 300 is connected between the CDMA network 110 and the GSM network 210 and performs signal conversion so that signal exchange between the two networks 110 and 210 can be performed.

The IRGS 300 manages the profile of the GSM SIM subscriber by serving as a function of HLR in the CDMA system 100, and serves as a VLR in the GSM system 200, so that the GSM system 200 roams. The location of the GSM SIM subscriber is recognized by the IRGS 300.

The IRGS 300 includes an international call identification number storage unit 310 storing an international call identification number.

The international call identification number may be selected and stored by a network operator, here, one of several international call identification numbers.

In addition, the international call recognition number stored in the international call recognition number storage unit 310 accommodates the GSM SIM from the IRGS 300 when authentication is required at the time of location registration of the CDMA terminal 150 capable of GSM SIM acceptance or other service use. This is included in the transmission of the authentication request message to the possible CDMA terminal 150.

Meanwhile, the CDMA terminal 150 capable of accommodating GSM SIM includes an international call identification number storage unit 1500 for storing the international call identification number included in the authentication request message transmitted from the IRGS 300 at the time of authentication.

A separate additional function is required for the CDMA terminal 150 and the BSS 140 to transmit and receive the GSM SIM.

This additional function has a function of using a CDMA data burst message to pass the data and international call identification number required for authentication of a user to the GSM system 200 when registering a roaming subscriber. The use of message transmission over this CDMA databurst channel can accommodate roaming subscribers while minimizing changes to current networks.

Message transmission over the CDMA databurst channel is currently used as a short message transmission. The CDMA databurst message can use any CDMA radio channel, and any channel can transmit and receive data without changing the network.

2 is a block diagram of a CDMA terminal 150 capable of accepting a GSM SIM for automatically setting an international call identification number according to an embodiment of the present invention.

As shown in FIG. 2, the CDMA terminal 150 capable of accommodating GSM SIM according to an embodiment of the present invention includes a duplexer 1520, a wireless transceiver 1530, a controller 1540, a memory 1550, The display unit 1560 includes a keypad 1570, a SIM interface unit 1580, and a SIM card holder 1590.

The controller 1540 controls the overall operation of the CDMA terminal 150 that can accommodate the GSM SIM according to an embodiment of the present invention.

The duplexer 1520 receives the radio signal received from the BSS 140 through the antenna 1510, outputs the radio signal to the radio transceiver 1530, and outputs the signal output from the radio transceiver 1530 through the antenna 1510. Output

The wireless transceiver 1530 transmits a signal received through the duplexer 1520 to the controller 1540, and outputs a signal output from the controller 1540 to the duplexer 1520.

The controller 1540 analyzes and processes a signal received through the wireless transceiver 1530.

The memory unit 1550 stores a ROM (Read Only Memory: ROM, not shown), various telephone numbers, names, and the like in which a program storing control data necessary for the control unit 1540 to perform overall control. And a non-volatile memory (not shown), and a random access memory (RAM) (not shown) for temporarily storing and processing data generated during the program control.

The memory unit 1550 includes an international call identification number storage unit 1500 for storing an international call recognition number included in an authentication request message transmitted from the IRGS 300 at the time of authentication.

The display unit 1560 outputs a character or an image representing various operating states of the CDMA terminal 150 that can accommodate the GSM SIM under the control of the controller 1540 so that a user can view it, and typically a liquid crystal display device (Liquid Crystal). Display).

The key pad 1570 includes a call key for starting a call to initiate a call, an end key for ending a call, a function key for dialing, and the like, and generates a key input signal corresponding to a key input by a user. Transfer to control unit 1540.

In addition, a specific key of the keys of the keypad 1570, for example, a "+" key, is set as a key corresponding to the international call recognition number according to the embodiment of the present invention.

The controller 1540 is configured to replace the "+" key when the "+" key is input from the keypad 1570, and more specifically, the "+" "country number" "area code" "telephone number" is input to the memory unit 1550. By replacing with the international call recognition number stored in the international call recognition number storage unit 1500 in the) it is possible to produce the same effect as the international call recognition number is directly input from the user.

On the other hand, the SIM card interface 1580 connected to the controller 1540 reads the information stored in the SIM card when the SIM card storing information on the GSM service subscriber is mounted in the SIM card holder 1590, and controls the controller 1540. While transferring the data to the SIM card, the controller 1540 transmits the data output from the controller 1540.

In addition, the control unit 1540 transmits the specific data including the GSM subscriber information stored in the SIM card using the message transmission through the CDMA data burst channel when transmitting specific data through the antenna 1510, and also transmits the CDMA data burst message transmission. It is intended to receive certain data conveyed via, for example, an international call identification number.

Hereinafter, a method for automatically setting an international call recognition number according to an embodiment of the present invention will be described in detail with reference to FIG. 3.

First, the international call identification number is stored in the international call identification number storage unit 1500 in the memory unit 1550 in the CDMA terminal 150 that can accommodate the GSM SIM according to the embodiment of the present invention (S100).

This international call recognition number storage step (S100) will be described in more detail with reference to FIG.

First, when the SIM card of the GSM service subscriber is mounted on the SIM card holder 1590 of the CDMA terminal 150 capable of accommodating GSM SIM, the control unit 1540 recognizes this through the SIM card interface 1580 and stores the international call recognition number. Step S100 is started (S101).

As such, when the SIM card is mounted, the controller 1540 reads necessary information from a subscriber profile stored in the SIM card, for example, information such as an International Mobile Subscriber Identity (IMSI), and transmits and receives the wireless transceiver 1530, the duplexer 1520, and the antenna. The BSS 140 transmits the information to the BSS 140 through the 1510, and the BSS 140 transmits the corresponding information to the MSC 130, and the MSC 130 transmits the received information to the terminal 150 capable of accommodating the corresponding GSM SIM. Knowing that the HLR for the IRGS (300) and forwards the information received back to the IRGS (300) so that the IRGS (300) to know that the authentication required for the CDMA terminal 150 that can accommodate the GSM SIM (S103) ).

Next, the IRGS 300 recognizes that the user of the CDMA terminal 150 capable of accommodating the GSM SIM is a GSM service subscriber, and thus needs to authenticate the subscriber to the GSM system 200, and then the HLR 220 of the GSM system 200 is recognized. Request an authentication parameter, and the international call recognition number previously stored in the international call recognition number storage unit 310 with the authentication parameter obtained from the AuC 230 for the subscriber and transmitted from the HLR 220, eg For example, the authentication summary message including the numbers "001", "002", "00345", etc. is transmitted to the CDMA terminal 150 capable of accommodating the GSM SIM through the CDMA data burst message, and the CDMA capable of accommodating the GSM SIM. In this way, the terminal 150 receives an authentication request message including an authentication parameter and an international call identification number from the IRGS 300 (S105).

Thereafter, the control unit 1540 of the CDMA terminal 150 capable of accommodating GSM SIM receives the international call identification number included in the authentication request message transmitted from the IRGS 300 and stores the international call identification number in the memory unit 1550. It is stored in the unit 1500 (S107).

As such, by using the CDMA data burst message to transmit the international call identification number between the IRGS 300 and the CDMA terminal 150 capable of accepting the GSM SIM, the change of the CDMA system 100 can be minimized.

As such, when the international call identification number transmitted from the IRGS 300 is stored in the international call identification number storage unit 1500 in the memory unit 1550, for example, "001" in step S100, the controller 1540. Determines whether there is a "+" key input from the user through the keypad 1570 for the international telephone call (S110).

If you do not use the international ID number directly to make international calls, you can use the "+" key, "+" "country code" "region code" In the case of inputting "," the control unit 1540 replaces the international call recognition number stored in the international call identification number storage unit 1500 instead of "+", in this example, "001". (S120)

Thereafter, the control unit 1540 transmits the telephone number replaced with the international call recognition number, that is, the "international call recognition number" "country number" "region code" "telephone number" to the CDMA system 100 to request the international call connection. Perform (S130).

On the other hand, the international call identification number stored in the international call recognition number storage unit 310 of the IRGS 300 may be arbitrarily set by the CDMA service provider. That is, the CDMA service provider may change the international call recognition number depending on factors such as service charge and quality of service.

In addition, in the international call recognition number storing step (S100), the SIM card is mounted, and the IRGS 300 transmits the authentication request message including the international call recognition number to the CDMA terminal 150 capable of accommodating GSM SIM. Although it has been described that the identification number is set, in addition to this, the IRGS 300, if necessary, for example, when the CDMA terminal 150 capable of accommodating GSM SIM is idle, the CDMA terminal 150 capable of accommodating GSM SIM 150 The international call recognition number can be transmitted through the authentication request message without a request from.

Although the present invention has been described with reference to the most practical and preferred embodiments, the present invention is not limited to the above disclosed embodiments, but also includes various modifications and equivalents within the scope of the following claims.

According to the present invention, when attempting authentication to a CDMA terminal 150 capable of accommodating GSM SIM, or if necessary, a data burst message including information on an international call identification number in IRGS 300 is capable of accommodating GSM SIM. By being transmitted to the CDMA terminal 150 and the international call recognition number is set, the user roamed to the CDMA system 100 can conveniently use the international phone as the same way as the GSM system 200 used.

In addition, by using the data burst message can be set to minimize the existing network configuration changes.

Claims (12)

It is connected to GSM system through IRGS (International Roaming Gateway System) which converts signals so that signals can be exchanged between systems and interlocks with CDMA system that provides roaming service for GSM service subscribers. In the CDMA terminal that can accommodate the GSM SIM to be set, An international call recognition number storage unit for storing an international call recognition number; And Receives an international call identification number transmitted from the IRGS through the CDMA system and stores the international call recognition number in the international call identification number storage unit. Control unit for performing international call connection request by replacing international call recognition number stored in number storage GSM SIM accommodating CDMA terminal capable of automatically setting an international call recognition number. The method of claim 1, A wireless transceiver for performing wireless communication with the CDMA system under control of the controller; A user interface unit providing an interface with a user under the control of the controller; And A data storage unit including the international call recognition number storage unit and storing data necessary for controlling the CDMA terminal capable of accommodating the GSM SIM; GSM SIM accommodating CDMA terminal that can automatically set the international call recognition number further comprising. The method of claim 1, GSM SIM accommodating CDMA terminal capable of automatically setting an international call recognition number, characterized in that the specific key is a "+" key. The method of claim 1, The international call recognition number transmitted from the IRGS is automatically set in the international call recognition number, characterized in that it is transmitted in the authentication request message together with the authentication parameter when authentication in the GSM system for the GSM SIM accommodating CDMA terminal. GSM SIM accommodating CDMA terminal. The method according to claim 1 or 4, And a CDMA terminal capable of automatically setting an international call identification number, wherein the data transmission related to the international call identification number is performed by CDMA data burst message transmission. CDMA terminal capable of accommodating GSM SIM in conjunction with CDMA system that provides roaming service to GSM service subscribers by accessing GSM system through IRGS (International Roaming Gateway System) that converts signals to enable signal exchange between systems In the method for automatically setting the international call recognition number, a) receiving an international call identification number sent in the IRGS via the CDMA system; b) storing the received international call identification number in a specific memory; c) determining whether there is a specific key input for an international telephone call from the user; And d) if it is determined in step c) that there is the specific key input, substituting the international key recognition number stored in step b) instead of the specific key; International call recognition number automatic setting method in a CDMA terminal that can accommodate the GSM SIM containing. The method of claim 6, And a specific key is a "+" key. The method for automatically setting an international call recognition number in a CDMA terminal capable of accommodating GSM SIM. The method of claim 6, Before step a), Determining whether the SIM card of the GSM service subscriber is mounted; If it is determined in the step that the SIM card is mounted, reading the GSM service subscriber related information stored in the SIM card; And Transmitting the read GSM service subscriber related information to the IRGS via the CDMA system; International call recognition number automatic setting method in a CDMA terminal that can accommodate GSM SIM further comprising a. The method of claim 6, The method of automatically setting an international call recognition number in a CDMA terminal capable of accommodating GSM SIM, characterized in that the data transmission related to the international call identification number is performed by CDMA data burst message transmission. An International Roaming Gateway System (IRGS) including an international call identification number storage unit for converting a signal so as to exchange signals between systems, and storing an international call identification number; And CDMA system that provides roaming service for CDMA terminal that can accommodate GSM SIM by accessing GSM system through IRGS Including; When the IRGS is requested to be authenticated by the GSM service subscriber related information transmitted from the CDMA terminal capable of accepting the GSM SIM, the GSM transmits an authentication request message including an international call identification number stored in the international call identification number storage unit. Characterized in that the transmission to the CDMA terminal that can accommodate SIM Roaming service system providing international call identification number. The method of claim 10, Roaming service system, characterized in that the international call identification number stored in the international call identification number storage unit of the IRGS can be arbitrarily changed by the CDMA system operator. The method according to claim 10 or 11, wherein Roaming service system for providing an international call identification number, characterized in that the data transmission related to the international call identification number is performed by CDMA data burst message transmission.