KR20100046091A - Method and device for controlling for data service offer - Google Patents

Abstract

PURPOSE: A method and a device for controlling for data service providing are provided to analyze data service which is allowed through a service code and subscriber identity, thereby controlling providing of the mobile communication service according to communication business owner. CONSTITUTION: An analyzing unit(220) extracts a service code and subscriber identification information from a data service providing request message. The analyzing unit analyzes permitted data service through the service code and the subscriber identification information. A controller(230) generates the data service providing request message according to the analysis result of the analyze unit. The controller transmits the data service providing request message to the second communications networks through a communication unit(210).

Description

Method and device for controlling data service offer

The present invention relates to a mobile communication network, and more particularly, to a method and apparatus for controlling data service provision for an inbound roaming terminal.

With the rapid development of mobile communication technology, UMTS systems based on WCDMA technology have recently provided various packet communication services as well as existing voice communication services.

In general, the UMTS system is composed of a core network (CN), a universal terrestrial radio access network (UTRAN), and a user equipment (UE). The UTRAN provides a radio access control service and consists of one or more RNSs (Radio Network Sub_Systems). Here, one RNS is composed of one Radio Network Controller (RNC) and at least one base station NodeB.

The CN (Core Network) is composed of a circuit switching domain (Circuit Switching Domain) providing circuit switching service and a packet switching domain (Packet Switching Domain) providing packet switching service.

In particular, a domestic mobile communication service provider can access a network of an overseas mobile communication service provider, that is, an outbound roaming network, through an international circuit network and an international signaling network.

Mobile service providers provide various data services through packet communication channels. Representative data services include interactive services (VOD) and video on demand (VOD), which provide services in response to requests such as web surfing. The service may include a streaming service that provides a unidirectional real-time data service, a background service that is relatively less sensitive to transmission delay, such as an e-mail, a multimedia message, and the like.

In particular, WCDMA, which represents the third generation of telecommunications, provides automatic roaming services around the world, and according to the recent rapid globalization, the number of customers using overseas roaming services has increased significantly.

For example, an overseas roaming mobile terminal user may be provided with various additional services and data services provided in a home network.

However, in the related art, a specification for providing a data roaming service to a subscriber in a mobile communication environment is too complicated and has low implementation possibility, thus making it difficult to actually implement.

An object of the present invention is to provide a data service control method and apparatus capable of controlling a mobile communication service for each communication service provider.

The present invention also relates to a data service control method and apparatus that can allow a communication service within a range that does not affect roaming revenue by allowing only a specific communication service to provide a communication service to an inbound roaming terminal.

According to one aspect of the present invention, an apparatus for controlling data service provision to a roamed terminal is provided.

According to an embodiment of the present invention, a service control device connected to a roamed terminal to control data service provision to the roamed data, the service code and the subscriber identification information from the inbound roaming terminal through a first communication network A communication unit receiving a data service providing request message including; An analysis unit extracting a service code and subscriber identification information from the data service provision request message and analyzing whether the service code and the subscriber identification information are permitted data services using the extracted service code and subscriber identification information; And a controller configured to generate the data service provision request message according to an analysis result of the analysis unit and transmit the generated data service request message to the second communication network through the communication unit.

According to another embodiment of the present invention, a service control device connected to an inbound roaming terminal to control data service provision to the inbound roaming terminal, the data service incoming message including subscriber information from a first communication network is received. Receiving communication unit; An analysis unit extracting subscriber information from the data service incoming message and analyzing whether the data service incoming message is a message received from a communication service provider that is allowed to provide data service using the extracted subscriber information; And a controller configured to determine whether to transmit the data service incoming message to the inbound roaming terminal through a second communication network according to an analysis result of the analysis unit.

According to another aspect of the present invention, a method of controlling data service provision to a roamed terminal is provided.

According to an embodiment of the present invention, in a method for controlling data service provision to a roaming terminal, receiving a data service provision request message including a service code and subscriber identification information from an inbound roaming terminal through a first communication network Receiving step; Extracting the service code and subscriber identification information from the received data service provision request message; Analyzing whether to allow data service to the inbound roaming terminal using the extracted service code and subscriber identification information; And transmitting the data service provision request message to the second communication network when the data service to the inbound roaming terminal is allowed as a result of the analysis.

According to another embodiment of the present invention, a method for controlling a data service provision to an inbound roaming terminal by a service control device connected to an inbound roaming terminal, the method comprising: receiving a data service incoming message through a first communication network; Extracting subscriber information from the data service incoming message; Analyzing whether the communication service provider that has transmitted the data service incoming message is a communication service provider that is allowed to provide data service using the extracted subscriber information; And determining whether to transmit the data service incoming message to the inbound roaming terminal through a second communication network according to an analysis result.

By providing a data service control method and apparatus according to the present invention, it is possible to control the provision of a mobile communication service for each service provider.

In addition, the present invention also has the advantage that allows the communication service within the range that does not affect the roaming revenue by allowing only a specific communication service when providing a communication service to the inbound roaming terminal.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In the following description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

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

1 is a schematic configuration diagram of a system for explaining a procedure for updating a location of an inbound roaming terminal through a roaming service network according to an embodiment of the present invention.

Hereinafter, a procedure for updating the location of the inbound roamed terminal through the roaming first communication network will be described briefly. Hereinafter, in the present specification, it is assumed that the first communication network is a roaming communication network, and the second communication network is assumed to be a communication network corresponding to a communication service provider subscribed to by the subscriber of the inbound roaming terminal. .

The inbound roaming terminal 110 is a device that receives various mobile communication services provided by a mobile communication provider through a communication network. In addition, the inbound roaming terminal 110 is a terminal capable of processing data services (for example, USSD service, etc.) defined in the 3GPP standard, and is a conventional mobile phone, PDA, smart phone, mobile broadcast system (MBS). It can include all phones.

The inbound roaming terminal 110 obtains system information by decoding the broadcast channel of the roaming access base station 112 and obtains the earth station identification information (PLMN ID) from the obtained system information. The inbound roaming terminal 110 analyzes the acquired earth station identification information and analyzes whether the acquired earth station identification information is earth station identification information corresponding to the second communication network.

If the obtained earth station identification information is not the earth station identification information corresponding to the second communication network, the inbound roaming terminal 110 generates a location registration request message including the acquired earth station identification information and generates a second communication network through the first communication network. The home location register 140 is transmitted.

Accordingly, the home location register 140 of the second communication network acquires the earth station identification information from the location registration request message, performs location registration with respect to the inbound roaming terminal 110, generates a location registration response message, and generates a first communication network. Through the inbound roaming terminal 110 through.

In addition, when the service code is input from the user, the inbound roaming terminal 110 generates a data service provision request message and transmits it to the control device 200.

The switch 120 is an apparatus for providing a circuit switching service to a mobile subscriber in association with a circuit network. The exchange 120 performs functions such as circuit switching between subscribers, incoming and outgoing relay management, handoff, and roaming. In addition, the exchange 120 manages a visitor location register (VLR) database.

In addition, when the location update message is received from the inbound roaming terminal 110, the exchange 120 acquires subscriber information for the terminal 110 from the GLR 130 in accordance with the location update message and performs authentication. In addition, the exchange 120 may control the location update message of the terminal 110 according to the authentication result.

A gateway location register (GLR) 130 is a virtual home location register located in a visited network. The GLR stores information of the second network subscriber roamed to the first communication network and performs location management for the corresponding roaming subscriber. The second communication network may not be aware of the presence of the GLR 130. Thus, the interface between the home location register 140 and the GLR follows the interface specification defined between the home location register 140 and the VLR, and the interface between the GLR and the VLR follows the interface specification defined between the VLR and the HLR. The GLR 130 stores the subscriber data acquired from the home location register 140 of the home network during the location update procedure.

For example, when the home location register 140 of the second communication network receives a location registration request message originated by a subscriber terminal roaming on the first communication network, the home location register 140 updates the location information of the corresponding subscriber terminal and updates the subscriber information of the subscriber terminal. The insert subscriber data message including the information is transmitted to the exchange via the GLR. The GLR stores the subscriber information until receiving a location information deletion message from the home location register 140 of the home network. The stored subscriber information is then used for the home location register emulation function.

Here, the home location register emulation function means performing a location management procedure only within the first communication network (ie, the visited network). More specifically, when the location update request received from the terminal can be processed by the location update screening function without interworking with the associated home location register 140, the home location register emulation function is performed. . From this point, the GLR operates like the home location register 140 of the subscriber.

The location update screening function is used to determine whether the home location register 140 needs to be notified of the received location update request message. The GLR 130 may perform a home location register emulation function if there is an IMSI record for the subscriber.

However, even if there is an IMSI record for the subscriber in the GLR 130, in a special case, the GLR 130 may notify the related home location register 140 of the location update request message received. Since this is not an essential element necessary for describing the technical idea disclosed in the present invention, a description thereof will be omitted.

In addition, when the GLR 130 is requested to provide a data service from an inbound roaming terminal, whether the data service is provided to a communication service provider corresponding to the inbound roaming terminal 110, the data service for which the requested data service is registered is provided. Analyze cognition. The GLR 130 determines whether to control data service provision according to the analysis result. This will be described in detail with reference to FIG. 3 below.

In addition, when a data service incoming request from the second communication network to the inbound roaming terminal is received from the second communication network, the GLR 130 analyzes whether the corresponding data service incoming request is received from an allowed communication service provider. The GLR 130 determines whether to control the corresponding data service incoming request according to the analysis result. This will be described in detail with reference to FIG. 4 below.

The home location register 140 stores terminal information, subscriber information, location information, and the like of the mobile communication subscriber. In addition, the home location register 140 performs an authentication function for the subscriber requested through the exchange 120. In addition, the home location register 140 controls the signaling network protocol SS7 along with the switch 120 and the VLR, and performs a transaction for updating subscriber information to complete an incoming call. Here, the home location register 140 is one component included in the second communication network.

In other words, the switch 120 and the service control device 1 are components included in the first communication network, and the home location register 140 is a component included in the second communication network.

2 is a block diagram illustrating a schematic configuration of an apparatus for controlling a data service to an inbound roaming terminal according to an embodiment of the present invention. Hereinafter, in the present specification, it is assumed that the device for controlling the data service to the inbound roaming terminal is a gateway location register. That is, the device for controlling the data service to the inbound roaming terminal may be a separate device independent of the gateway location register, or may be included as one component of the gateway location register. The service control device 200 is connected to an inbound roaming terminal through a first communication network. In addition, the service control apparatus 200 may control a data service that is received or sent to the inbound roaming terminal. This will be described with reference to FIG. 2.

2, the service control apparatus 200 for controlling a data service includes a communication unit 210, an analysis unit 220, and a control unit 230.

The communication unit 210 receives a data service providing request message from the inbound roaming terminal through the first communication network or a data service incoming message through the second communication network.

Here, the first communication network is a communication network in which the inbound roaming terminal is roaming connected, and the second communication network is a communication network corresponding to the communication service provider subscribed to by the subscriber of the inbound roaming terminal.

In addition, the data service provision request message and the data service incoming message are unstructured supplementary service data (USSD) messages.

First, the USSD message will be briefly described for convenience of understanding and explanation.

USSD is an unstructured supplementary service data, which is a means for transmitting data or a specific command such as SMS (Short Message Service). SMS can be up to 80 characters long, while USSD can transmit data up to 160 characters long. In addition, the USSD uses a circuit signaling channel, which is inexpensive because data charges are not charged on a packet basis as in the wireless Internet. In addition, if the SMS is stored in the home location register (HLR, 305) to send a text, the data transmission and reception speed is up to 5 times faster than SMS because the data is transmitted and received without the storage operation. The USSD is a 3GPP standard and the standards are defined in TS 23.90 and TS 22.90.

The data service provision request message may include a service code and subscriber identification information. The data service incoming message includes subscriber identification information.

For example, the service code may be a combination of one or more of one or more letters, numbers, and special symbols. For example, the service code may be in a format such as '* 125 #' or '* 124 *'.

The subscriber identification information may be, for example, IMSI or MSISDN.

The analyzer 220 extracts the service code and the subscriber identification information from the data service provision request message input from the communication unit 210. The analyzer 220 checks whether the service provider is allowed to provide the data service using the extracted subscriber identification information. That is, subscriber identification information is set differently for each communication provider. Therefore, the analyzer 220 may analyze the subscriber identification number to recognize which carrier.

The analyzer 220 analyzes the subscriber identification information and recognizes which carrier the inbound roaming terminal belongs to, and if the service provider is allowed to provide the data service, the extracted service code using the extracted service code (i.e., Whether or not a registered data service) and outputs the analysis result to the controller 230.

For example, service codes are set differently for each data service. In the case of the securities inquiry service, the service code may be set to "* 555 #", and in the case of the data callback service (ie, the USSD callback service), the service code may be set to "* 125 #" and registered. Accordingly, the analyzer 220 may determine whether the data service is registered using the extracted service code.

For another example, when the data service incoming message is input from the communication unit 210, the analyzer 220 extracts subscriber identification information from the data service incoming message. The analysis unit 220 analyzes whether the data service incoming message is received from the communication service provider that is allowed to provide the data service using the extracted subscriber identification information, and outputs the analysis result to the control unit 230.

The control unit 230 transmits a data service provision request message to the second communication network through the communication unit 210 if the data service is permitted according to the analysis result of the analysis unit 220.

However, if the analysis result shows that the data service is not allowed, a data service failure message is generated and transmitted to the inbound roaming terminal through the first communication network.

In addition, the controller 230 may transmit the data service incoming message to the inbound roaming terminal through the first communication network if the communication service provider is allowed to provide the data service.

In addition, the control unit 230 performs a function of controlling the internal components (for example, the communication unit 210 and the analysis unit 220) of the control device 200 according to an embodiment of the present invention.

3 is a flowchart illustrating a method of controlling a data service of an inbound roaming terminal according to an embodiment of the present invention. Hereinafter, a method of controlling a data service requested from an inbound roaming terminal will be described. Hereinafter, it will be described on the assumption that the switch and the control device 220 are components included in the first communication network, and the home location register is a component included in the second communication network. In addition, the procedure of updating the location of the inbound roaming terminal will be described in order to facilitate understanding and explanation.

In step 310, the inbound roaming terminal 110 obtains the earth station identification information (PLMN ID) from the roaming access base station. That is, the inbound roaming terminal may acquire system information by decoding the broadcast channel of the roaming access base station, and obtain the earth station identification information (PLMN ID) from the obtained system information.

In step 315, the inbound roaming terminal 110 compares whether the acquired earth station identification information (PLMN ID) is earth station identification information corresponding to the second communication network. Here, the earth station identification information corresponding to the communication network subscribed to the subscriber of the inbound roaming terminal is stored in a smart card (USIM: universal subscriber identity module) mounted on the inbound roaming terminal. Of course, if the terminal is not equipped with a smart card, the corresponding earth station identification information may be stored in the internal memory of the inbound roaming terminal. Accordingly, the inbound roaming terminal compares the stored earth station identification information with the earth station identification information acquired through the connected base station to determine whether the earth station identification information corresponds to the second communication network.

If it is not the earth station identification information corresponding to the second communication network, the inbound roaming terminal 110 in step 320 sends a location registration request message including the earth station identification information obtained through the switch 120 and the service control device 200. Send to the home location register of the second communication network.

Accordingly, the home location register 140 of the second communication network obtains the earth station identification information from the location registration request message and performs location registration on the inbound roaming terminal.

Here, as described above, the first communication network is a communication network in which the inbound roaming terminal 110 is roamed and connected, and the second communication network is a communication network corresponding to a communication service provider subscribed to by the subscriber of the inbound roaming terminal 110.

In step 325, the home location register 140 of the second communication network acquires the earth station identification information from the received location registration request message, registers the location with respect to the inbound roaming terminal, and generates a location registration response message to service the first communication network. The control device 200 and the switch 120 transmit the inbound roaming terminal 110.

In step 330, the inbound roaming terminal 110 receives a service code from a user, generates a data service provision request message including a corresponding service code and subscriber identification information, and transmits the service code to the service control apparatus 200 through the switch 120. send.

In operation 335, the service control apparatus 200 extracts subscriber identification information from the received data service provision request message.

In operation 340, the service control apparatus 200 analyzes the extracted subscriber identification information to determine whether the service provider is allowed to provide the data service. That is, subscriber identification information is set / registered differently for each communication service provider. Accordingly, the service control apparatus 200 may recognize which communication provider the inbound roaming terminal belongs to by using the subscriber identification information. In addition, the service control apparatus 200 may determine whether data service provision is allowed to the recognized communication service provider.

If the service provider is not allowed to provide the data service, the service control apparatus 200 generates a data service failure message in step 345 and transmits it to the inbound roaming terminal.

However, if the communication service provider is allowed to provide the data service, the service control apparatus 200 obtains the service code from the data service provision request message in operation 350.

In operation 355, the service control apparatus 200 confirms whether the obtained service code is a registered service code.

If the service code is not registered, the service control apparatus 200 generates a preset service code error message and transmits the preset service code error message to the inbound roaming terminal 110.

However, if the registered service code, in step 365, the service control device 200 transmits a data service provision request message to the home location register 140 of the second communication network. Accordingly, the data service corresponding to the service code may be provided through the second communication network.

In operation 370, when the service termination message is received from the home location register of the second communication network, the service control apparatus 200 generates charging information and transmits the charging information to the charging server. In this case, the charging information may include a packet amount according to data service usage, a data service connection valid time, and a type of data service used.

4 is a flowchart illustrating a method of controlling a data service with an inbound roaming terminal according to an embodiment of the present invention. Hereinafter, when a data service incoming message is received from a communication network (that is, a second communication network) corresponding to a telecommunication operator subscribed to by a subscriber of an inbound roaming terminal, a method of controlling the same will be described. In addition, each step described below is performed by each internal component of the service control device 200, but will be collectively described as a control device for the convenience of understanding and explanation.

Hereinafter, as described above, the first communication network is a communication network in which the inbound roaming terminal 110 is roamed and connected, and the second communication network is a communication network corresponding to a communication service provider subscribed to by the subscriber of the inbound roaming terminal 110. It will be explained on the assumption.

In operation 410, the service control apparatus 200 receives a data service incoming message including subscriber identification information from the second communication network.

In operation 415, the service control apparatus 200 extracts subscriber identification information from the data service incoming message.

In operation 420, the service control apparatus 200 analyzes the extracted subscriber identification information to determine whether the service provider is allowed to provide data services. As described above, subscriber identification information is set and registered differently for each service provider. Accordingly, the subscriber identification information may be analyzed to recognize which carrier. In addition, the service control apparatus 200 may determine whether data service provision is provided to the recognized communication service provider by searching a table in which information on the communication service provider is stored.

If the service provider is not allowed to provide the data service, in step 425, the service control apparatus 200 generates a data service failure message and transmits it to the second communication network.

However, if the service provider is allowed to provide the data service, in step 430, the service control device 200 transmits the received data service incoming message to the inbound roaming terminal 110 through the first communication network.

As such, there is an advantage in that the data service is controlled through the service control apparatus 200 so that only the data service allowed by the inbound roaming terminal 110 is provided.

In operation 435, the service control apparatus 200 receives a data service incoming response message from the inbound roaming terminal 110.

In operation 440, the service control apparatus 200 generates charging information.

5 is a diagram illustrating a screen in which an inbound roaming terminal is provided with a service for inquiring a stock according to an embodiment of the present invention. In the following description, it is assumed that the user recognizes a service code to request a data service in advance. Of course, the user may be selected one of the service codes stored in the inbound roaming terminal.

As illustrated at 510 of FIG. 5, an inbound roaming terminal receives a service code (eg, "* 555 #") for a security inquiry service from a user. When the call button is pressed by the user, the inbound roaming terminal generates a data service provision request message including the corresponding service code and transmits the generated data service request message to the service control apparatus 200 through the first communication network. Accordingly, the service control apparatus 200 analyzes the corresponding data service providing request message and transmits the corresponding data service providing request message to the second communication network if it is an allowed data service. The second communication network analyzes the data service provision request message and transmits a guide message such as 520.

The inbound roaming terminal receiving the guide message through the first communication network outputs the guide message as shown in 520 and receives a corresponding item code from the user (see 530). When the inbound roaming terminal transmits the input item code, the second communication network generates various information corresponding to the corresponding item code and transmits it to the inbound roaming terminal through the first communication network. Accordingly, the inbound roaming terminal may output various information corresponding to the item code as shown in 540.

In the present specification, in order to facilitate the understanding and explanation, the description has been focused on the control of the data service provision to the inbound roaming terminal, but it is obvious that the same may be applied to the voice service.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be understood that the invention may be varied and varied without departing from the scope of the invention.

1 is a schematic configuration diagram of a system for explaining a procedure for updating a location of a terminal inbound roaming through a roaming service network according to an embodiment of the present invention;

2 is a block diagram illustrating a schematic configuration of an apparatus for controlling a data service to an inbound roaming terminal according to an embodiment of the present invention;

3 is a flowchart illustrating a method of controlling a data service of an inbound roaming terminal according to an embodiment of the present invention.

4 is a flowchart illustrating a method of controlling a data service with an inbound roaming terminal according to an embodiment of the present invention.

5 is a diagram illustrating a screen in which an inbound roaming terminal is provided with a service for inquiring a stock according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

210: communication unit

220: analysis unit

230: control unit

Claims (17)

A service control device connected to a roaming terminal to control data service provision to the roamed data, A communication unit receiving a data service providing request message including a service code and subscriber identification information from the inbound roaming terminal through a first communication network; An analysis unit extracting a service code and subscriber identification information from the data service provision request message and analyzing whether the service code and the subscriber identification information are permitted data services using the extracted service code and subscriber identification information; And And a controller configured to generate the data service providing request message according to an analysis result of the analysis unit and transmit the generated data service request message to the second communication network through the communication unit. According to claim 1, The first communication network is a communication network roaming the inbound roaming terminal, And the second communication network is a communication network of a communication service provider to which the inbound roaming terminal subscribes to a mobile communication service. The method of claim 2, The analysis unit checks whether the communication service provider is allowed data communication using the extracted subscriber identification information, and if the communication service provider is allowed data communication, checks whether the data service is registered using the extracted service code. Control device characterized in that. The method of claim 3, The analysis unit generates a data service connection failure message if the communication service provider is not allowed data communication, The data service connection failure message is transmitted to the inbound roaming terminal through the first communication network. The method of claim 2, And the subscriber identification information is IMSI or MSISDN. The method of claim 2, The service code is a control device, characterized in that a combination of one or more letters, numbers and special symbols. A method of controlling data service provision to a roaming terminal, the method comprising: Receiving a data service providing request message including a service code and subscriber identification information from the inbound roaming terminal through a first communication network; Extracting the service code and subscriber identification information from the received data service provision request message; Analyzing whether to allow data service to the inbound roaming terminal using the extracted service code and subscriber identification information; And And transmitting the data service provision request message to a second communication network when a data service to the inbound roaming terminal is permitted as a result of the analysis. The method of claim 7, wherein The data service providing request message is an unstructured supplementary service data (USSD) message. The method of claim 8, The first communication network is a communication network roaming the inbound roaming terminal, And the second communication network is a communication network corresponding to a communication service provider subscribed to the inbound roaming terminal. The method of claim 8, Analyzing whether to allow the data service to the inbound roaming terminal by using the extracted service code and subscriber identification information, Confirming whether the service provider is permitted to provide data service using the extracted subscriber identification information; And If the communication service provider is allowed to provide data service, using the extracted service code, checking whether the data service is permitted. The method of claim 8, The subscriber identification information is IMSI or MSISDN, And the service code is a combination of one or more letters, numbers, and special symbols. A service control device connected to an inbound roaming terminal to control data service provision to the inbound roaming terminal, A communication unit receiving a data service incoming message including subscriber information from a first communication network; An analysis unit extracting subscriber information from the data service incoming message and analyzing whether the data service incoming message is a message received from a communication service provider that is allowed to provide data service using the extracted subscriber information; And And a controller configured to determine whether to transmit the data service incoming message to the inbound roaming terminal through a second communication network according to an analysis result of the analysis unit. The method of claim 12, The first communication network is a communication network corresponding to a communication provider subscribed to the subscriber of the inbound roaming terminal, The second communication network includes the service control device, the service control device, characterized in that the inbound roaming terminal is a roaming communication network. The method of claim 12, And the control unit transmits the data service incoming message to the inbound roaming terminal through the second communication network if the message is received from a communication service provider that is allowed to provide the data service according to the analysis result. A method of controlling a data service provided by an inbound roaming terminal to an inbound roaming terminal, the method comprising: Receiving a data service incoming message through a first communication network; Extracting subscriber information from the data service incoming message; Analyzing whether the communication service provider that has transmitted the data service incoming message is a communication service provider that is allowed to provide data service using the extracted subscriber information; And And determining whether to transmit the data service incoming message to the inbound roaming terminal through a second communication network according to an analysis result. The method of claim 15, The first communication network is a communication network corresponding to a communication provider subscribed to the subscriber of the inbound roaming terminal, And the second communication network is a communication network to which the inbound roaming terminal is roaming connected. The method of claim 16, Determining whether to transmit the data service incoming message to the inbound roaming terminal through a second communication network according to an analysis result, If the communication service provider is permitted to provide the data service, transmitting the data service incoming message to the inbound roaming terminal through the second communication network; And And generating a data service failure message and transmitting the generated data service failure message to the first communication network if the data service provider is not allowed.

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