KR100667352B1 - International call setting method and mobile communication terminal using same - Google Patents

Abstract

A method for establishing an international call and a mobile terminal using the same are provided to allow a foreigner to establish an international call with a + key in the same manner as a user is in his/her own country. A user inputs a + key by using a 0 key of a mobile terminal for an international call(600). The user inputs the remaining phone number of the international call(602). The user requests establishing of the international call by using a send button of the mobile terminal(604). When inputted numbers start with the + key, the mobile terminal checks whether an international call provider number corresponding to the + key has been previously set(606). When the international call provider number corresponding to the + key has been previously set, the mobile terminal converts the + key into the pre-set international call provider number and transmits it to a base station(608).

Description

Method for setting up international call and mobile terminal using the same}

1 is a diagram illustrating an example of a mobile communication system to which an international call setup method is applied in a preferred embodiment of the present invention.

2 is a diagram illustrating a configuration of a mobile communication terminal to which an international call setup method is applied according to an exemplary embodiment of the present invention.

3 is a diagram illustrating an example in which a user outputs + to a terminal display unit using a button 0;

4 is a diagram illustrating an example of a user interface screen provided by a user terminal for setting an international telephone operator number according to an embodiment of the present invention.

5 is a diagram illustrating an international telephone service provider number setting process according to an embodiment of the present invention.

6 is a flowchart illustrating a method for establishing an international call according to an embodiment of the present invention.

7 is a flowchart illustrating a method for establishing an international call according to another embodiment of the present invention.

The present invention relates to an international call setup method, and more particularly, to an international call setup method for facilitating use of an international call in a mobile communication terminal and a mobile communication terminal using the same.

With the development of mobile communication technology and mobile communication terminal technology, a method for allowing a user to use a mobile communication terminal more conveniently has been continuously developed. For example, methods such as speed dialing and dialing by voice recognition have been used. .

In the case of a domestic phone, a user can make a call even if the user does not need to enter a phone number by the speed dial or voice recognition method described above. Therefore, speed dialing and voice recognition could not be used.

Therefore, the user has to be inconvenient to input the international telephone operator number, country code and the telephone number of the other party.

On the other hand, the WCDMA terminal can output '+' to the terminal by pressing the 0 key for a predetermined time. Overseas, '+' is used as a prefix for international carriers, but in Korea, WCDMA terminal can output '+' and the WCDMA communication system can recognize it. We did not use '+' properly.

In order to solve the problems of the prior art as described above, the present invention proposes a method for easily setting up an international call in the WCDMA terminal and a mobile communication terminal using the same.

Another object of the present invention is to propose a method for establishing an international call using '+' of a WCDMA terminal and a mobile communication terminal using the same.

Another object of the present invention is to propose a method for setting up an international call in the same way that a foreigner who is accustomed to using '+' in Korea, using an international call in his country, and a mobile communication terminal using the same.

According to an aspect of the present invention to achieve the above object, a step (a) of determining whether or not a predetermined special symbol is included in the input telephone number; (B) determining whether an international telephone operator number corresponding to the special symbol is preset when the preset special symbol is included; (C) converting the input telephone number so that the special symbol becomes a preset international telephone operator number when the international telephone operator number is preset; And (d) transmitting a call connection request signal including the converted telephone number information.

The preset special symbol may be output by pressing a specific button of the mobile communication terminal for a predetermined time, and the preset special symbol may be '+'.

The present invention may further include converting the input telephone number so that the special symbol becomes a default international telephone operator number when the international telephone operator number corresponding to the preset special symbol is not set in advance. can do.

In addition, the present invention may further include the step of outputting a message requesting to set the international telephone operator number, if the international telephone operator number corresponding to the preset special symbols is not set in advance.

In addition, the present invention comprises the steps of receiving an international telephone operator number setting request from the user; Providing a list of pre-stored international telephone operator numbers in response to the international telephone operator number setting request; And setting the international telephone operator number selected by the user in the international telephone operator number list to an international telephone operator number corresponding to a preset special symbol.

According to another aspect of the invention, the method comprising the steps of: (a) determining whether a predetermined special symbol is included in the input telephone number; (B) determining whether an international telephone operator number corresponding to the special symbol is preset when the preset special symbol is included; (C) converting the input telephone number so that the special symbol becomes a preset international telephone operator number when the international telephone operator number is preset; (D) transmitting a call establishment request signal including the converted telephone number information; And transmitting a call connection request signal including a telephone number including the special symbol when the international telephone service provider number is not set in advance, wherein the mobile communication system exchange receiving the call connection request signal includes: An international call setting method is provided in a mobile communication terminal that converts the phone number so that a special symbol included in a call connection request signal becomes a preset international telephone operator number and transmits the converted phone number information to an international call roaming gateway.

According to still another aspect of the present invention, an international telephone service provider number setting unit provides a list of prestored international telephone service provider numbers in response to a user's international telephone operator number setting request and receives international telephone operator number selection information from the user; An international telephone operator number storage unit for storing the international telephone operator number information selected by the user in a nonvolatile memory; And determining whether a preset special symbol is included in the input telephone number, and if the preset special symbol is included, the special symbol is an international telephone operator number stored in the international telephone operator number storage. A mobile communication terminal including a conversion unit for converting an input telephone number is provided.

Hereinafter, with reference to the accompanying drawings will be described in detail the preferred embodiment of the international call setup method and a mobile communication terminal using the same in the present invention.

1 is a diagram illustrating an example of a mobile communication system to which an international call setup method is applied to a preferred embodiment of the present invention.

Referring to FIG. 1, the WCDMA mobile communication terminal 150 using the international call setup method of the present invention may communicate with a CDMA network 160 or a WCDMA network 170. The mobile communication terminal 150 accesses the WCDMA network 170 when the WCDMA service is in an area and performs communication. When the mobile communication terminal 150 is in an area where the WCDMA service is not supported, the mobile terminal 150 accesses the general CDMA network 160 to perform communication. Perform.

WCDMA mobile communication terminal 150 using the international call setup method of the present invention is a wireless terminal that can be used in the WCDMA mobile communication system, a multi-mode multi-band terminal, the interface that can input a '+' like a GSM terminal To provide. For example, when the mobile terminal '0' button is pressed for a predetermined time or more, '+' is displayed on the display of the mobile terminal.

The present invention proposes a method for easily inputting a number of an international telephone operator using '+'.

As described above, according to the related art, the user has to inconvenience in that, in order to make an international call, the user must input not only the telephone number in the corresponding country of the other party to make a call, but also the international telephone operator number and the country code.

In the present invention, an international call can be made simply by inputting a '+' without inputting an international telephone number. In the GSM system, + is often designated as the prefix of an international gateway, and foreigners are particularly accustomed to setting up international calls by entering the + key when making international calls. The present invention will be more useful to these foreigners.

In the case of a general CDMA system in Korea, '+' could not be recognized as an international gateway prefix because '+' was not recognized at the exchange in the CDMA network even if the terminal input '+'.

In addition, in the WCDMA system, the WCDMA network exchange recognizes the '+' input from the terminal, but there is a large number of international telephone providers and the international call containing the '+' is selected by one international telephone operator. Since it cannot be connected, there is a problem that it is practically difficult to use '+' as an international gateway prefix in a WCDMA system.

In order to solve this problem, the present invention proposes a method of transmitting an international call setup request signal to a mobile communication network when a user inputs a '+' in a terminal to a preset number of an international telephone operator.

When only the CDMA service is supported, the CDMA network to which the international call setup request signal is transmitted is connected to the base station 100, the base station controller 102, the exchange 104, the home location register 106, and the visitor location register 108. It may include.

The base station 100 transmits an international call setup request received from the mobile communication terminal 150 to the switch 104 under the control of the base station controller 102, and provides additional services (for example, provided by the switch 104). The receiver pre-specified sound source data or guidance message) to the mobile communication terminal 150.

The base station controller 102 controls the operation of the base station 100 and functions to appropriately allocate resources when the user moves from one sector of the base station to another.

The exchange 104 performs the exchange function of the system and controls the calls with other phones and data stems. The exchange 104 determines the type of the call transmitted from the mobile communication terminal, and provides the international call roaming gateway 118 with the international call connection request signal.

The home location register (HLR) 106 is a device that performs a function of recording and storing information of a subscriber located in a subscriber's living area of a mobile communication service.

The visitor location register 108 serves as a database for registering the location of the mobile communication terminal outside the home exchange.

If the WCDMA service is supported, the WCDMA network to which the international call connection request signal is transmitted may include a node 120, a radio network controller (RNC) 110, a WCDMA switch 112, and a visitor location register 114. ), A home location register 116.

The node 120 is a component corresponding to the base station of the CDMA network. The node 120 receives a signal transmitted from the physical layer of the mobile communication terminal 150 and transmits the received WCDMA signal under the control of the radio network controller 110. Transmit to the exchange 112.

The radio network controller 110 is a component corresponding to the base station controller of the CDMA network, and is in charge of allocating and managing radio resources and functions to own and control radio resources.

The WCDMA switch 112 performs the exchange function of the system and controls the calls with other telephone and data systems like the switch of the CDMA network. The WCDMA switch 112 determines the type of call transmitted from the mobile communication terminal and provides the international call connection gateway 118 with the international call connection request signal.

2 is a diagram illustrating a configuration of a mobile communication terminal to which an international call setup method is applied according to an exemplary embodiment of the present invention.

2, a mobile communication terminal according to an embodiment of the present invention includes a memory unit 206 including a duplexer 200, a wireless transceiver 202, a controller 204, and an international call setup storage unit 208. ), An international call conversion unit 210, an international call setting processing unit 212, an interface unit 214, a display unit 216, and an antenna 218.

The duplexer 200 receives a radio signal received from a base station or a node through an antenna 218 and outputs the radio signal to the radio transceiver 202, and outputs a signal provided from the radio transceiver 202 through the antenna 218. Function.

The wireless transceiver 202 performs a predetermined signal processing such as demodulation of a signal provided from the duplexer 200 and then provides the processed signal to the controller 204. In addition, the wireless transceiver 202 performs a predetermined signal processing such as modulation of a signal to be provided to the duplexer 200 and outputs it to the duplexer 200.

The controller 204 analyzes a signal output from the wireless transceiver 202 and performs a preset control process according to the type of the signal. In addition, the controller 204 receives the user's request information through the interface unit 214 such as a keypad of the mobile communication terminal and performs a control process corresponding to the request information.

When the user inputs '+' to the mobile communication terminal for international call connection, the international call setting processing unit 212 processes a procedure of setting an international telephone operator number to which the input '+' is converted. The user may request the international call number setting through a menu of the mobile communication terminal, and the international call setting processor 212 processes the international call number setting according to the user's request.

According to an embodiment of the present invention, the international call setting processor 212 displays the international telephone operator number stored in advance in the user terminal when the user requests to set the international telephone operator number corresponding to '+'.

4 is a diagram illustrating an example of a user interface screen provided by a user terminal for setting an international telephone operator number according to an embodiment of the present invention.

When the user requests to set the international telephone provider number, the mobile communication terminal provides an international telephone operator number list as shown in FIG. The user may select one of the international telephone service provider numbers by using an interface such as a keypad, and the selected international telephone service provider number is set to an international telephone service provider number corresponding to '+'. Of course, the user may set the international telephone operator number by directly inputting the international operator number.

The memory unit 206 may include a ROM for storing control data, a nonvolatile memory for storing information such as a phone number, schedule information, and a RAM for temporarily storing and processing data generated during program control.

The memory unit 206 includes an international call setting storage unit 208 for storing an international telephone operator number set by the international call setting processing unit 212, and the international call setting storage unit 208 is one of the memory units 206. It may be included in the nonvolatile memory area.

The international call converting unit 210 converts the '+' into a preset international telephone operator number when the user inputs '+' to request connection of the international call. For example, when the user sets 00345 as the international telephone operator number, the international call converting unit 210 converts the '+' input by the user at the international call connection request into 00345.

Therefore, when the user inputs a phone number for international call connection, such as + 1-213-345-6789, 00345-1-213-345 converted by the international call converter 210 into the CDMA or WCDMA network. Transmitted in the form of -6789.

The display unit 216 displays various operation states and necessary information of the mobile communication terminal under the control of the controller. The display unit 216 may be implemented through display means such as LEDs and OLEDs.

When the user inputs '+', the display unit 216 displays '+' as it is, and preferably converts it to a preset international business number and does not display it.

FIG. 3 is a diagram illustrating an example in which a user outputs + to a terminal display unit by using a button 0. FIG.

The user can output '+' to the display of the terminal by pressing button 0 of the WCDMA mobile terminal for a certain time, and the output + is maintained even if the user requests the international call setup by entering the remaining phone number. .

5 is a diagram illustrating an international telephone service provider number setting process according to an embodiment of the present invention.

Referring to FIG. 5, the mobile communication terminal receives a user's international telephone operator number setting request (step 500). The user may request to set the international telephone operator number through the menu of the mobile communication terminal, and a separate hotkey for this may be provided in the mobile communication terminal.

In response to the user's request to set the international telephone provider number, the mobile communication terminal displays a menu for selecting a pre-stored international telephone provider number (step 502).

The selection menu may be provided in the form as shown in FIG. 4, and international telephone service provider numbers such as 00345, 001, and 002 are provided.

If the international telephone operator number to be set by the user is on a list provided by the mobile communication terminal, the user selects one of the provided lists (step 504).

If the international telephone provider number to be set by the user is not included in the list provided by the mobile communication terminal, the user may directly input the desired international telephone provider number (step 506).

The international telephone operator number selected or input by the user is stored in the international call setting storage unit (step 508).

6 is a flowchart illustrating a method for establishing an international call according to an exemplary embodiment of the present invention.

Referring to FIG. 6, a user first displays '+' on a display unit of a mobile communication terminal by using a '0' key of the mobile communication terminal (step 600). If the mobile communication terminal has a keypad including a '+' button, the '+' button may be directly displayed by pressing the '+' button.

After '+' is displayed on the terminal display, the user inputs the remaining phone number of the international call using the keypad of the mobile communication terminal, and the controller of the mobile communication terminal recognizes the keypad number pressed by the user so that the number pressed by the user is displayed. Control to be displayed (step 602).

For example, the user enters a '+' and then enters a country code and a phone number of a call counterpart in the corresponding country. Specifically, if the country of the call counterpart is the United States and the telephone number in the United States is 213-345-6789, it may be entered as + 1-213-345-6789.

If all the numbers are entered, the user requests the international call setup using the call button of the mobile communication terminal (step 604). When requesting international call connection, the mobile terminal determines whether the number entered by the user starts with '+', and if it starts with '+', the user presets the international telephone operator number corresponding to '+'. It is determined whether or not (step 606).

When the user presets an international telephone operator number corresponding to '+' according to the procedure of FIG. 5, the mobile communication terminal converts '+' to a preset international telephone operator number and transmits it to the base station (node). (Step 608). For example, if the user sets the international telephone operator number corresponding to '+' to 001, it is converted to 001-1-213-345-6789 and transmitted to the base station (node).

If the user has not previously set an international telephone operator number corresponding to '+', the international telephone operator number set as default may be used (step 610). For example, if the default international telephone operator number is 00345, + 1-213-345-6789 is converted to 00345-1-213-345-6789 and transmitted to the base station (node).

Of course, if the international telephone operator number corresponding to '+; is not set, the default international telephone operator number is not used and the mobile communication terminal may output a message indicating that the international telephone operator number corresponding to' + 'should be set. It may be.

7 is a flowchart illustrating a method for establishing an international call according to another embodiment of the present invention.

Since '+' is not recognized by the CDMA switch, telephone numbers containing the CDMA '+' cannot be processed by the general CDMA switch. However, in the WCDMA system, since the exchange recognizes '+', it can also process a phone number including '+', so that Fig. 7 shows a call connection method in this case.

In FIG. 7, the procedure up to step 706 is the same as in FIG. 6, and thus description thereof will be omitted. If it is a WCDMA system and the user has not previously set a separate international telephone operator number for '+', the number containing the + entered by the user is sent via the node to the WCDMA switch (step 710).

In this case, the telephone number containing '+' is converted by the WCDMA exchange. When the telephone number including '+' is received, the exchange converts '+' into a default international telephone operator number preset in the exchange and transmits it to the international call roaming gateway (step 712). Of course, in contrast, the international telephone number used by the user for each user is stored in a separate database, and the WCDMA exchange may convert '+' to the international telephone number stored in the database by using the information stored in the database. will be.

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art to which the present invention pertains without departing from the spirit and scope of the present invention as set forth in the claims below It will be appreciated that modifications and variations can be made.

As described above, according to the preferred embodiment of the present invention, an international call can be easily set up in a WCDMA terminal, and there is an advantage in that a '+' key is not used. In particular, foreigners who are familiar with the use of '+' will be able to set up international calls in the same way as they used international calls in their own countries.

Claims (13)

Determining whether the input telephone number includes a preset special symbol (a); (B) determining whether an international telephone operator number corresponding to the special symbol is preset when the preset special symbol is included; (C) converting the input telephone number so that the special symbol becomes a preset international telephone operator number when the international telephone operator number is preset; And And (d) transmitting a call connection request signal including the converted telephone number information. The method of claim 1, The preset special symbol is output by pressing a specific button of the mobile communication terminal for a predetermined time. The method of claim 1, The preset special symbol is '+' international call setting method, characterized in that the mobile communication terminal. The method of claim 1, Converting the inputted telephone number so that the special symbol becomes a default international telephone operator number when the international telephone operator number corresponding to the preset special symbol is not set in advance. How to set up international call in mobile communication terminal. The method of claim 1, And if the international telephone operator number corresponding to the preset special symbol is not set in advance, outputting a message requesting the international telephone operator number setting. The method of claim 1, Receiving an international telephone operator number setting request from a user; Providing a list of pre-stored international telephone operator numbers in response to the international telephone operator number setting request; And And setting the international telephone operator number selected by the user in the list of international telephone operator numbers to an international telephone operator number corresponding to a predetermined special symbol. Determining whether the input telephone number includes a preset special symbol (a); (B) determining whether an international telephone operator number corresponding to the special symbol is preset when the preset special symbol is included; (C) converting the input telephone number so that the special symbol becomes a preset international telephone operator number when the international telephone operator number is preset; (D) transmitting a call establishment request signal including the converted telephone number information; And If the international telephone operator number is not set in advance, transmitting a call connection request signal including a telephone number including the special symbol, The mobile communication system exchange receiving the call connection request signal converts the telephone number so that a special symbol included in the call connection request signal becomes a preset international telephone operator number and transmits the converted phone number information to an international call roaming gateway. International call setting method in a mobile communication terminal, characterized in that. The method of claim 7, wherein The preset special symbol is '+' international call setting method, characterized in that the mobile communication terminal. An international telephone service provider number setting unit that provides a list of internationally stored telephone service provider numbers in response to a user's international telephone service provider number setting request and receives international telephone service provider number selection information from the user; An international telephone operator number storage unit for storing the international telephone operator number information selected by the user in a nonvolatile memory; And It is determined whether or not a preset special symbol is included in the input telephone number. If the preset special symbol is included, the special symbol is the international telephone operator number stored in the international telephone operator number storage. And a converting unit for converting the telephone number. The method of claim 9, The preset special symbol is a '+' mobile terminal. The method of claim 9, The preset special symbol is output by pressing a specific button of the mobile terminal for a predetermined time. The method of claim 9, The converting unit converts the input telephone number so that the special symbol becomes the international telephone operator number set as a default when the international telephone operator number set by the user is not stored in the international telephone operator number storage unit. Mobile communication terminal. The method of claim 9, The conversion unit does not perform the conversion when the international telephone service provider number set by the user is not stored in the international telephone service provider number storage unit, and the telephone number including the special symbol is transmitted to a mobile communication system switch, And a communication system exchanger converts the telephone number so that the special symbol becomes a preset international telephone operator number and transmits the converted telephone number information to an international call roaming gateway.

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