KR20090057558A - Advice of charge method during conversation and therefor portable terminal - Google Patents

Abstract

A method and an apparatus for confirming a reason of a call termination in a call service in a portable terminal are provided to confirm the reason of a call termination when generating a compulsive termination according to charged cost during a call service. An RF(Radio Frequency) unit(210) transmits and receives a message generated according to a communications event during the call service. An input unit(230) receives AOC(Advice Of Charge) information request signal among the conversation service performance with the specific function key. A memory unit(240) stores a guide message informing the termination of the conversation service due to the charged amount shortage, and the announcement received among the conversation service performance and AOC information according to the execution of the call service application. A controller transmits the guide message to a target portable terminal.

Description

Method and device for notification of usage charge during call service in mobile terminal {ADVICE OF CHARGE METHOD DURING CONVERSATION AND THEREFOR PORTABLE TERMINAL}

The present invention relates to a method and apparatus for Advice of Charge (AOC) of a mobile terminal, and more particularly, to a method and apparatus for notifying AOC information of a subscriber identity module (SIM) card during a call service between mobile terminals.

In general, electronic money is a currency composed of digital data to perform the role of coins or banknotes in the virtual space of digital society based on digital data. Specifically, electronic money is a commodity that can be traded through a network such as the Internet or a communication network. it means. The necessity of such electronic money is greatly increased due to the rapid development of the Internet and electronic commerce.

The electronic money includes a network type electronic money and a card type electronic money. The network type electronic money is a value stored in an electronic wallet program installed on a computer, and for security reasons, a transaction is mainly performed online (in a state connected with an electronic money management server). The card-type electronic money can be implemented more safely and conveniently via smart cards, and is expected to be deployed in this direction in the future.

The card-type electronic money is divided into pre-paid and post-paid again. The prepaid is a method in which the user pays the corresponding amount in advance and charges and stores the electronic money value in the card. It is used to collect the usage history and settle it to the user later.

The smart chip used in the card-type electronic money was originally intended to be used in the form of a smart card embedded in a credit card sized plastic card, but it is embedded in a mobile terminal for user convenience and various applications. In this case, the smart chip embedded in the portable terminal is formed in the form of a SIM card inserted into a socket provided on the portable terminal to perform data communication with the portable terminal. All prepaid electronic money used in portable terminals having such a SIM card must be charged with a predetermined value in the SIM card in advance for use thereof.

On the other hand, in the case of a mobile terminal using the prepaid electronic money, the call is forcibly terminated with a warning sound when the value (hereinafter referred to as 'money') of the electronic money charged in the SIM card is exhausted during the call.

Typically, a mobile terminal user who charges and uses a prepaid electronic money in a SIM card cannot know when the call will end during the call. In addition, when the user wants to check the remaining amount deducted by billing of the prepaid electronic money, the user must go through several menu entry steps to check the AOC (Advice of Charge) information in the SIM card. There was a hassle to check. In addition, if the call service is suddenly forcibly terminated during the call, the user of the mobile terminal may know that the amount of money charged to the SIM card is exhausted, but the user of the other mobile terminal may know the cause of the termination of the call service. There was no way. Therefore, there is a problem that causes a misunderstanding such as discomfort in the case of the user of the relative mobile terminal.

Therefore, the present invention was devised to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a call service between mobile terminals when a forced termination of the call service occurs by exhausting the amount of money charged to the SIM card. In addition, the present invention provides a method and apparatus for providing a call service that can notify a counterpart portable terminal of a reason for termination of a call.

Another object of the present invention is to provide a method and apparatus for providing a call service that can more easily notify the current remaining amount of a prepaid electronic money charge amount of a SIM card in response to a user request while providing a call service between mobile terminals.

The method according to an embodiment of the present invention for achieving the above object, in the method of providing a call service in a mobile terminal, the process of checking the charge amount information during the setting of any desired mobile terminal and call service, and the charge amount If the information is greater than or equal to a predetermined reference value, the step of continuing the call service, and if the charge amount information is less than or equal to the predetermined reference value, generating a guide message and transmitting to the portable terminal.

The method according to an embodiment of the present invention for achieving the above object, in the method of providing a call service in a mobile terminal, checking and updating the Advice of Charge (AOC) information during the setting of the call service with any desired mobile terminal And generating a warning message and a guide message upon detecting that the amount of charge based on the updated AOC information is less than or equal to a set reference value, outputting the warning message to a portable terminal, and outputting the guide message to the target portable terminal. Transmitting the data to the mobile terminal; and when the charge amount is exhausted, ending the call service with the target mobile terminal, and extracting the updated AOC information after the call service is terminated to visualize and audit the notification information. And outputting at least one of the methods.

An apparatus according to an embodiment of the present invention for achieving the above object, in the mobile terminal, a radio frequency unit for processing the transmission and reception of a message generated in accordance with a communication event during the provision of a call service with any desired mobile terminal; The input unit receives an AOC (Advice of Charge) information request signal by a specific function key while performing a call service with the target mobile terminal, a guide message indicating that the call service is terminated due to insufficient charge amount, and received during the call service. And a memory unit for storing AOC information according to the execution of the call message and the application related to the call service, and the call service of the mobile terminal based on the AOC information. And a control unit for transmitting the guide message to a target mobile terminal in a call service. The.

As described above, according to the method and apparatus for using charge notification during a call in the mobile terminal proposed by the present invention, it is possible to easily check the charged amount in the SIM card during a call. In addition, when the call service is terminated due to the exhaust of the charge amount in the SIM card while using the call service, it can be sent as a message to the other mobile terminal. Through this, the counterpart mobile terminal user may be provided with a cause when the call service is forcibly terminated.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, only the parts necessary for understanding the operation according to the embodiment of the present invention will be described, it should be noted that the description of other parts will be omitted so as not to distract from the gist of the present invention.

The terms or words used in the specification and claims described below should not be construed as being limited to ordinary or dictionary meanings, but should be construed as meanings and concepts corresponding to the technical spirit of the present invention. And the embodiments described in the specification and the configuration shown in the drawings are only one of the most preferred embodiment of the present invention, not representing all of the technical idea of the present invention. Therefore, it should be understood that there may be various equivalents and modifications that can substitute for them at the time of the present application.

The present invention relates to a method and apparatus for notifying AOC information of a subscriber identity module (SIM) card in a call service between mobile terminals. Particularly, in the embodiment of the present invention, the value of the electronic money charged in the SIM card (hereinafter, referred to as 'amount') during the use of a call service in a mobile terminal in which a prepaid electronic money is charged and used in a subscriber identity module (SIM) card is used. Before the call is exhausted, the reason why the call service is terminated is to send a text message.

Therefore, according to the present invention, while checking the charge amount in the SIM card, when the charge amount is less than a predetermined reference value, the mobile terminal and the target mobile terminal using the call service can inform the reason of the end of the call service through the text message. That is, the mobile terminal checks the AOC (Advice of Charge) information of the SIM card while using the call service, and when the charge amount by the AOC information falls below a certain amount, the call is made before the end of the call service through the message service to the other party. The reason for the service termination is to be informed in advance.

In addition, according to the present invention, the target mobile terminal receiving the text message may display the contents of the text message, and may attempt to connect the call service more conveniently to the mobile terminal where the call service is terminated.

To this end, the present invention may include a mobile terminal equipped with an AOC information management application, and a SIM card having information filled with the value of a prepaid electronic money (hereinafter referred to as 'AOC information'). In the embodiment of the present invention, the AOC information is extracted from the SIM card. That is, the following description will be given as an example of a portable terminal supporting the SIM card and the AOC function. Therefore, in the following description, the remaining amount is notified according to the user's request by using the AOC information of the SIM card while using the call service, and the end user is informed of the termination according to the extent to which the charge amount of the SIM card is exhausted while using the call service. Describe the configuration of sending a message. However, the AOC information may be stored and implemented in the internal memory of the portable terminal. In this case, it is a matter of course that the combined configuration of the SIM card in the embodiment of the present invention can be omitted.

1 is a diagram illustrating a call service providing process in a general mobile terminal.

Referring to FIG. 1, first, a mobile terminal performs a call service with an arbitrary target mobile terminal according to a user's request (step 101). That is, the portable terminal connects a call with the target portable terminal through a wireless network.

The mobile terminal checks billing information using the AOC information of the SIM card after performing the call connection with the target mobile terminal (step 103) and determines whether the call service is sustainable (step 105). That is, the mobile terminal checks the amount of money consumed by the use of the call service, based on the AOC information of the SIM card, and determines whether to continue the call service according to the amount.

At this time, when it is determined that the mobile terminal cannot continue the call service, the mobile terminal forcibly terminates the call service in operation (step 107). On the other hand, when it is determined that the mobile terminal can continue the call service, the mobile terminal continuously provides the call service with the target mobile terminal (step 109).

Next, when detecting the termination of the call service being performed (step 111), the portable terminal outputs the changed AOC information corresponding to the call service execution (step 113). The AOC information has different information from AOC information before providing the call service. That is, the AOC information includes information obtained by subtracting the amount charged according to the call from the charge amount before providing the call service.

Meanwhile, as described above with reference to FIG. 1, conventionally, the call service is forcibly terminated when the charge amount is exhausted using the AOC information of the SIM card. At this time, the user of the mobile terminal can know the cause of the forced termination of the call service by outputting the AOC information of the mobile terminal, but the user of the target mobile terminal can not know the reason of the termination of the call service. In addition, in the related art, there is no function of notifying the user until all the charged amount is used up, which causes inconvenience to the user of the portable terminal.

Therefore, in the embodiment of the present invention, the mobile terminal checks the AOC information of the SIM card while providing the call service, and notifies the user when the amount of charge is exhausted below the set reference value. In addition, by sending a message through the message service to the target mobile terminal, it is possible to notify in advance that the call service is terminated due to the lack of a prepaid charge of the SIM card.

2 is a schematic block diagram of a portable terminal according to an exemplary embodiment of the present invention. In particular, although FIG. 2 illustrates a case in which the mobile terminal of the present invention is a mobile communication terminal, the mobile terminal of the present invention is not necessarily limited to the mobile communication terminal.

As shown in FIG. 2, the mobile terminal 200 according to an embodiment of the present invention includes a radio frequency (hereinafter referred to as RF) unit 210, an audio processor 220, and an input unit 230. , A memory unit 240, a display unit 250, a controller 260, and the like.

Referring to FIG. 2, the RF unit 210 performs communication of the mobile terminal 200. The RF unit 210 forms a communication channel with a wireless network to perform voice communication and data communication. The RF unit 210 may include an RF transmitter for upconverting and amplifying a frequency of a transmitted signal, and an RF receiver for low noise amplifying a received signal and downconverting a frequency of the received signal. In particular, the RF unit 210 processes transmission and reception of messages generated according to a communication event while providing a call service with a target mobile terminal. The communication event may be an event generated when the controller 260 detects that the amount of charge decreases below a predetermined reference value according to AOC information obtained from the SIM card 300.

The audio processor 220 plays an audio signal or transmits an audio signal generated from a microphone MIC to the controller 260. The audio processor 220 converts an audio signal into an audible sound through a speaker SPK, and outputs an audio signal such as a voice received from the microphone MIC. In particular, the audio processor 220 may output the audio signal set at the time of AOC information and alert alarm notification through the speaker SPK.

The input unit 230 receives various text information, and transmits a key signal input in connection with setting various functions and function control of the mobile terminal 200 to the controller 260. The input unit 230 may be formed of any one or a combination of a touch pad, a keypad of a general key arrangement, and a QWERTY keypad according to the form of the portable terminal 200. The input unit 230 may further include function keys such as a direction key, a volume key, and a hot key set to perform a specific function. In particular, the input unit 230 may receive an AOC information request signal by a specific function key and transmit the AOC information request signal to the controller 160 while providing a call service with the target mobile terminal.

The memory unit 240 may include at least one application, user data generated by a user, a message received from a target mobile terminal, and data (AOC information, message) according to execution of the application according to an embodiment of the present invention. Etc.). The application may be an application that extracts the amount of information necessary for setting the call service by referring to the AOC information of the SIM card, and processes billing information generation and transmission of the set message during the call service. The memory unit 240 includes a message storage area 241 for storing a sample of a message to be sent to the target mobile terminal when the remaining amount of money is exhausted according to the use of the call service based on the AOC information falls below the reference value. can do. In addition, the memory unit 240 may include an AOC information storage area 243 for buffering AOC information obtained from the SIM card and providing AOC information at the request of the controller 260. The memory unit 240 may include one or more buffers that temporarily store data generated during the above-described application execution.

The display unit 250 displays screen data generated while the application is executed, and displays a user's key operation status and function setting information. The display unit 250 may be formed of a liquid crystal display (hereinafter, referred to as an LCD). The LCD may be formed as a touch screen. In this case, the display unit 250 may be included in the input means. In particular, the display unit 250 may display the AOC information notification screen data and warning alarm screen data of the present invention.

The controller 260 controls the overall operation of the mobile terminal 200 and the signal flow between internal / external blocks of the mobile terminal 200. The controller 260 may be configured between the components such as the RF unit 210, the audio processor 220, the input unit 230, the memory unit 240, the display unit 250, and the SIM card 300. Control signal flow. The controller 260 may include a data processor consisting of a codec and a modem.

In particular, the control unit 260 generates a communication event for detecting the AOC check unit 261 that checks the AOC information of the SIM card 300 and when the amount of charge is exhausted by a predetermined amount according to the checked AOC information. The AOC notification unit 263 and a message sample set when the communication event occurs to process the message transmission to the target mobile terminal in use of the call service, and when the call service is terminated in response to the message received during the call service provision. Message management unit 265 for processing the display of the message and manages the forced termination of the currently provided call service in response to the AOC information, and the target mobile terminal in response to the information in the message received when the call service forced termination in accordance with the set manner And a call service manager 267 for managing a call service connection to the network.

The controller 260 generates and outputs billing information with reference to AOC information obtained from the SIM card 300 at a user request or at a set cycle according to a set call mode, and then outputs the billing information to the mobile terminal 200 based on the AOC information. Terminate call service performed by). The controller 260 may update the AOC information of the SIM card 300 based on the charging information generated according to the call service. The controller 260 may subtract the information charged according to the performance of the call service from the amount charged according to the AOC information obtained from the SIM card and transfer the information to the SIM card 300 and / or the AOC information storage area 243. Can be. The controller 260 processes the transmission of the set message to the target mobile terminal in the call service during the call service according to the remaining amount information obtained from the AOC information.

In addition, the controller 260 determines a message received while providing a call service, and processes the output of the message through the display unit 250 when the call service is forcibly terminated. In addition, the controller 260 may automatically set up a call service with a target mobile terminal based on the information of the message according to a setting method after outputting the message.

The detailed control operation of the controller 260 as described above will be described later.

On the other hand, the SIM card 300 is a module in the form of a card that can be attached to / detached from the portable terminal 200, may include a microprocessor and a memory chip. In the memory chip of the SIM card 300, the mobile terminal 200 operates to use various subscriber information such as a user's personal telephone number, password, AOC information, and a call service provided through a wireless network. Network properties that are loaded during this time are stored.

On the other hand, the mobile terminal 200 may further include an interface unit that serves as a connector to which the SIM card 300 can be mounted and detached. That is, the SIM card 300 is a card type has a signal pattern for transmitting and receiving arbitrary signals (for example, subscriber information, ICCID, etc.) is formed on one side, the interface unit is connected to the signal pattern to the signal pattern A pattern corresponding to is formed.

Therefore, when the mobile terminal 200 of the present invention is a terminal using the SIM card 300, the SIM card 300 may be mounted through the interface unit.

The configuration of the SIM card 300 and the mobile terminal 200 shown in the description with reference to FIG. 2 is schematically shown for the convenience of operation of the present invention, and the present invention is not limited thereto. Therefore, the shape and the mounting means of the SIM card 300 and the mobile terminal 200 of the present invention can be formed through various combinations, of course.

In addition, FIG. 2 illustrates a schematic configuration example of a mobile terminal 200 according to an embodiment of the present invention for convenience of description. However, the mobile terminal 200 of the present invention is not necessarily limited to this configuration. Therefore, the mobile terminal 200 of the present invention may further include components not mentioned above, such as a camera module, an electronic payment module, a digital broadcasting module, a battery module, and the like, according to a form of provision thereof. In addition, the mobile terminal 200 of the present invention may be excluded from the above-described configuration or replaced by another block according to the form of the present invention. For example, when the portable terminal of the present invention does not use the SIM card 300, the configuration of the SIM card 300 may be omitted. This will be readily understood by those of ordinary skill in the art.

In the above, the configuration and operation of the control means and the portable terminal including the same according to an embodiment of the present invention have been described. Next, the operation of the present invention according to the use of a call service in the mobile terminal will be described. However, the present invention is not limited to the contents described below, it should be noted that it can be applied to various embodiments based on the following embodiments.

3 is a diagram illustrating a call service providing operation of a mobile terminal according to an exemplary embodiment of the present invention.

Referring to FIG. 3, first, the controller of the portable terminal sets a call service with an arbitrary target portable terminal according to a user's request (step 301). That is, the controller connects a call with the target mobile terminal through a wireless network.

Subsequently, the controller checks charging information based on performance of a call service with the target mobile terminal (step 303). The control unit may check the charging information using the AOC information of the SIM card. In operation 305, the controller determines whether the call service is sustainable based on the charging information and the AOC information.

For example, the controller may update the AOC information according to the charging information generated according to the performance of the call service, and determine whether to continue the call service by comparing the amount based on the updated AOC information with a preset reference value.

If it is determined in step 305 that the call service can be continued, the controller continues the call service with the target mobile terminal (step 307). Subsequently, when a request for terminating the current call service is generated (step 309), the controller terminates the current call service (step 311). The controller extracts the updated AOC information (step 313), and outputs the AOC information based on this (step 315). The AOC information may include billing information charged according to the call, remaining amount information after being deducted according to the billing, and the like. The AOC information output may be output in at least one of a visualization through a display unit and an auditory method through a speaker.

On the other hand, if the controller detects the AOC information request from the user during the call service (step 317), the controller extracts the updated AOC information (step 319), and outputs the AOC information based on this (step 321). The AOC information may include billing information charged according to the call service, remaining amount information after being deducted according to the billing, and the like. The AOC information output is preferably displayed in a visualization manner through a display unit as the mobile terminal is in progress of a voice call. However, in the present invention, the speaker SPK may be output in an auditory manner.

The controller may continue the call service after outputting the AOC information (step 323). In this case, the controller may continue to output the output AOC information until the end of the call. In addition, the AOC information may be automatically terminated after a predetermined time, or terminated at the user's request. When continuously outputting the AOC information output until the end of the call service, the AOC information may be continuously updated and output corresponding to the billing information charged based on the performance of the call.

On the other hand, when it is determined that the call service is not continued in step 305, the controller outputs alarm information (step 325). The alarm information may be a warning message indicating that the call service cannot be continued due to lack of charge amount based on the AOC information extracted from the SIM card. The warning message may include current remaining amount information obtained based on the AOC information and warning information indicating a shortage of recharge amount.

In operation 327, the controller determines whether the notification function is activated. The notification function is a function of notifying the user of the mobile terminal of the purpose of terminating the call service due to the insufficient amount of money required to use the call service of the mobile terminal during the call service, and may be preset (activated / deactivated) by the user. .

If the notification function is deactivated, the controller continues the call service for a predetermined time, and forcibly terminates the call service when the charged amount is used up (step 329). The controller extracts AOC information (step 331), and outputs AOC information based on this (step 333). The AOC information may include billing information charged according to the call service, remaining amount information after being deducted according to the billing, and the like. The controller may further include alarm information in the AOC information for requesting charging as all charges are exhausted by performing the call service. The AOC information and alarm information output may be output in at least one of visualization through a display unit and an auditory method through a speaker.

On the other hand, if the notification function is activated, the controller generates a message (step 335), and transmits the message to the target mobile terminal currently connected to the call service (step 337). The message may include information indicating that the call service is terminated when the charge amount of the portable terminal is exhausted, and may include terminal information of the portable terminal. The terminal information may be a phone number of the mobile terminal.

Next, the controller continues the call service for a predetermined time, and when the charge amount is used up, the control unit terminates the call service (step 339). The controller extracts AOC information (step 341), and outputs AOC information based on this (step 343). The AOC information may include billing information charged according to the call, remaining amount information after deduction according to the billing, and the like. The controller may further include alarm information in the AOC information for requesting charging as all charges are exhausted by performing the call service. In addition to the AOC information, the controller may output the message including the message sending information. The AOC information output may be output in at least one of a visualization through a display unit and an auditory method through a speaker.

4 is a diagram illustrating a call service connection process in a mobile terminal according to an embodiment of the present invention. In particular, FIG. 4 illustrates an example in which the mobile terminal of the present invention operates as an outgoing mobile terminal attempting to connect to a call service.

Referring to FIG. 4, first, when a user is requested to connect a call service with an arbitrary target mobile terminal (step 401), the controller extracts AOC information from a SIM card (step 403), and based on the AOC information, The charging amount information of the mobile terminal is checked (step 405).

Next, the controller determines whether the mobile terminal can connect to the call service based on the charge amount information (step 407). For example, the controller compares the charge amount information with a preset reference value, and determines that the call service connection is possible when the charge amount information is higher than the reference value, and connects the call service when the charge amount information is lower than the reference value. It can be determined as impossible.

As a result of the determination in step 407, when the charge amount information is higher than the reference value, that is, when it is determined that the call service connection is possible, the controller performs a call service connection with the target mobile terminal (step 421). As a result of the determination in step 407, when the charge amount information is less than the reference value, that is, when it is determined that the call service connection is impossible, the controller terminates the call service connection requested by the user (step 409). At this time, upon termination of the call service connection, alarm information may be further output. For example, alarm information indicating that the call service connection cannot be made due to insufficient charge amount can be output.

Next, the controller checks whether the charging function is activated after the call service connection is terminated (step 411). The charging function refers to a function set so that a user can more easily charge an amount of money for performing a call service.

If the charging function is inactive, the controller may terminate the procedure or perform a corresponding operation according to a user request. On the other hand, if the charging function is activated, the controller outputs charging information (step 413). The charging information may include current remaining balance information acquired based on the AOC information, guide information for guiding a connection to a server related to charging, and the like. The guide information may include a URL of the server for accessing the server, a phone number for connecting to the server, and the like.

Next, the controller determines whether there is a charge request (step 415). The charging request may be a request by a user or an automatic charging request based on the charging function.

As a result of the determination in step 415, if there is no charge request, the controller may terminate the procedure or perform a corresponding operation according to a user request. On the other hand, if there is a charge request, the controller performs charging based on the set method or the requested method (step 417). For example, the charging may be connected to an arbitrary charging server through a wireless network / Internet network, and charging may be performed according to a set procedure with the server. In this case, charging may be omitted or charged according to the service method when the server is connected.

Next, when the charging procedure is completed, the controller may determine whether there is a call service connection request (step 419). If there is no call service connection request, the controller may terminate the procedure or perform a corresponding operation according to a user request. On the other hand, when the call service connection is requested, the controller may attempt to connect to the target mobile terminal based on the call information or the newly input call information according to the call service connection request in step 401 (step 421).

5 is a diagram illustrating a process of performing a call service in a mobile terminal according to an embodiment of the present invention. In particular, FIG. 5 is a diagram illustrating a call service processing process after a mobile terminal of the present invention receives a message during a call service and terminates the call service compulsory.

Referring to FIG. 5, first, the controller may receive and store a message transmitted by the target mobile terminal while performing a call service with an arbitrary target mobile terminal (step 503). As described above, the message may be a message indicating that the call service is forcibly terminated as the charge amount of the target mobile terminal is exhausted.

Next, when the controller detects that the call service is forcibly terminated for a predetermined time or immediately after storing the message (step 505), the controller outputs the stored message (step 507). The message output may be output including the contents of the message and connection information for connection to the target mobile terminal. The connection information may include selection information for setting a target mobile terminal and a call service, a phone number of the target mobile terminal, and the like.

In operation 509, the controller determines whether there is a call service connection request. The call service connection request may be a request by a user or a request to automatically connect a call based on the connection information according to a setting method. When the call service connection request is made, the controller may attempt to connect the call service to the target mobile terminal based on the connection information (step 511).

As described above, according to an embodiment of the present invention, when the charge amount of the call service reaches a predetermined amount or more based on the charging information generated in response to performing the call service and the update information of the previously charged amount, A message indicating that the call service is to be terminated may be transmitted to the counterpart mobile terminal in the call service.

On the other hand, the above has been described on behalf of the case where the call service connection of the present invention is made of one-to-one communication, the above operation of the present invention can be applied to the case that the call service connection is made of one-to-many communication, that is, multi-party communication, of course to be.

As described above, in the detailed description of the present invention has been described with respect to specific embodiments, various modifications are possible without departing from the scope of the invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below, but also by the equivalents of the claims.

1 is a diagram illustrating a call service providing process in a general mobile terminal;

2 is a schematic block diagram of a portable terminal according to an embodiment of the present invention;

3 is a diagram illustrating a call service providing operation of a mobile terminal according to an embodiment of the present invention;

4 is a diagram illustrating a call service connection process in a mobile terminal according to an embodiment of the present invention;

5 is a diagram illustrating a call service performing process in a mobile terminal according to an exemplary embodiment of the present invention.

Claims (20)

In the method of providing a call service in a mobile terminal, Checking the recharge amount information during the setting of the desired mobile terminal and the call service; If the charge amount information is greater than or equal to a preset reference value, continuing the call service; If the amount of charge information is less than a predetermined reference value, the method comprising the step of generating a guide message and transmitting to the mobile terminal. The method of claim 1, And terminating the call service when the charge amount is exhausted after transmitting the guide message to the portable terminal. The method of claim 2, The guide message is a method for providing a call service in a mobile terminal, characterized in that a message indicating that the call service is terminated due to insufficient charge amount. The method of claim 2, And if the charge amount information is less than or equal to a preset reference value, outputting warning information indicating a lack of charge amount to the user of the mobile terminal. The method of claim 2, The target mobile terminal receives and stores the guide message during the call service setting; And a step of outputting the guide message when the call service is terminated. The method of claim 5, And after the output of the guide message, connecting the call service to the corresponding mobile terminal based on the terminal information included in the guide message. In the method of providing a call service in a mobile terminal, Checking and updating Advice of Charge (AOC) information while setting up a mobile terminal and a call service for any purpose; Generating a warning message and a guide message when detecting that the amount of charge based on the updated AOC information is less than or equal to a set reference value; Outputting the warning message to a portable terminal, and transmitting the guide message to the target portable terminal; Terminating a call service with the target mobile terminal when the charge amount is exhausted; And after the call service is terminated, extracting the updated AOC information and outputting the notification information in at least one of visualization and auditory methods. The method of claim 7, wherein The notification information includes at least one of charging information, charge amount information, and charging information according to the call service setting. The method of claim 8, And outputting the notification information, and charging the prepaid electronic money value from an arbitrary server based on the charging information. The method of claim 8, And checking whether the notification function is activated or deactivated when the charged amount is less than the set reference value. The method of claim 10, And disabling the notification service when the notification function is exhausted when the notification function is deactivated. The method of claim 8, The target mobile terminal receives and stores the guide message during the call service setting; And a step of outputting the guide message when the call service is terminated. The method of claim 12, And after the output of the guide message, connecting the call service to the corresponding mobile terminal based on the terminal information included in the guide message. The method of claim 1, And the AOC information is obtained from a subscriber identity module (SIM) card. In the mobile terminal, A radio frequency unit which processes transmission and reception of a message generated according to a communication event while providing a call service with a mobile terminal of any purpose; An input unit for receiving an AOC (Advice of Charge) information request signal by a specific function key while performing a call service with the target mobile terminal; A memory for storing a guide message indicating that the call service is terminated due to insufficient charges, a guide message received while performing the call service, and AOC information according to execution of the call service related application; And a control unit for controlling the call service of the mobile terminal based on the AOC information, and transmitting the guide message to the target mobile terminal in the call service when the amount of charge is exhausted below the reference value according to the implementation of the call service. Mobile terminal. The method of claim 15, The controller determines the guide message received during the call service, and outputs the guide message when the call service ends. The method of claim 16, And the control unit automatically sets up a call service with a target mobile terminal based on the terminal information of the guide message after outputting the guide message. The method of claim 16, wherein the control unit, An AOC check unit for checking the AOC information; An AOC notification unit for generating the communication event upon detecting that a predetermined amount of money is used up according to the AOC information; A message management unit which processes a message transmission to a target mobile terminal in use of a call service when the communication event occurs, and outputs the message when the call service ends in response to a message received while providing a call service; The call service management unit manages the forced termination of the currently provided call service in response to the AOC information and manages the connection of the call service to the target mobile terminal in response to the information in the message received when the call service is forcibly terminated according to the set method. A mobile terminal comprising a. The method of claim 18, The communication event is a mobile terminal, characterized in that the event occurs when it is detected that the amount of charge decreases below a predetermined reference value according to the AOC information. The method of claim 15, The application is a mobile terminal, characterized in that for extracting the amount of information necessary for setting the call service, with reference to the AOC information, and processing the generation of billing information according to the call service and the transmission of the message set during the call service.

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