KR20060087368A - Broadcast/multicast service system and method for supporting roaming between networks - Google Patents

Abstract

The present invention relates to a broadcast / multicast service system and method for supporting inter-network roaming. When a user of a terminal roaming from a home network to a visited network requests BCAST service of the home network, Providing a service guide of a home network or a new service guide combining the service guide of the home network and its own service guide to the terminal, and confirming the user's authentication from the home network to provide the BCAST service provided by the visited network. Provides the right to execute to the terminal.

Broadcast / Multicast Services, Roaming, Home Networks, Landing Networks

Description

BROADCAST / MULTICAST SERVICE SYSTEM AND METHOD FOR SUPPORTING ROAMING BETWEEN NETWORKS

1 is a block diagram showing the configuration of a BCAST service system for implementing the present invention;

2 is a signal flow diagram illustrating a first embodiment of a BCAST service method when a terminal roams from a home network to a visited network;

3 is a signal flow diagram illustrating a second embodiment of a BCAST service method when a terminal roams from a home network to a visited network;

4 is a signal flow diagram illustrating a third embodiment of a BCAST service method when a terminal roams from a home network to a visited network.

The present invention relates to a mobile communication system, and more particularly, to a broadcast / multicast service system and method for supporting inter-network roaming for providing broadcast / multicast service when a user roams to the same network or different networks. It is about.

The broadcast / multicast service (hereinafter referred to as BCAST service) refers to a type of service for a mobile terminal providing over-the-air broadcasting or other additional information, which is useful for all users who subscribe to their service. It is a new type of service that includes both a broadcast service for providing information and a multicast service for providing information only to a certain group of users who have subscribed to a specific topic or content in advance.

Currently, a simple type of service that provides simple information to a user in a mobile communication network is provided, but a BCAST service of a type of multimedia broadcasting or a variety of contents is not yet provided.

Therefore, when the BCAST service is operated independently for each service provider and a user subscribed to a specific service provider moves to another service provider's area, the user cannot be guaranteed continuity with respect to the BCAST service provided only in a specific area. There is this.

In addition, when a user subscribed to a specific BCAST service moves from a home network and is located in a visited network, there is a problem in that a procedure for continuously receiving content provided by the home network is not defined.

An object of the present invention is to provide a broadcast / multicast service system and method that supports inter-network roaming to guarantee continuity of broadcast / multicast services when a user roams to the same service network or to another service network. .

In addition, another object of the present invention is a broadcast / multicast service supporting roaming between networks so that a user roaming from a home network to a visited network can receive a broadcast / multicast service using a service supported by the visited network. To provide a system and method.

In order to achieve the above object, a broadcast / multicast service system supporting inter-network roaming according to the present invention includes a content provider for providing broadcast / multicast (hereinafter referred to as BCAST) content; When the terminal roams, the first network provides its service guide to a third network requesting a service guide based on the wish list of the terminal and checks and provides service authentication of the terminal; According to the request signal transmitted from the roaming terminal is characterized in that the second network for confirming the service authentication of the terminal from the home network and providing a service guide to the terminal.

In order to achieve the above object, in a system for providing a BCAST service to a terminal roaming from a first network to a second network, a broadcast / multicast service system supporting inter-network roaming according to the present invention includes: A BCAST subscription management unit (BSM) of a visited network for requesting service authentication of the terminal to the first network according to a request of the terminal and providing a right to use the requested content to the corresponding terminal; A BCAST subscription management unit (BSM) of the first network that checks the service certification of the terminal and provides a response to the service authentication request to the BCAST subscription management unit (BSM) of the second network; If there is no wish list for the terminal, the BCAST service distribution / application unit (BSDA) of the second network requesting the service guide of the terminal to the first network and providing the service guide or BCAST content to the terminal. Wow; When a request is received from a BCAST service distribution / application unit (BSDA) of the first network, a first network transmitting a service guide or BCAST content of the terminal to a BCAST service distribution / application unit (BSDA) of the second network. Other features include the BCAST Service Distribution / Application Unit (BSDA).

The broadcast / multicast service method for supporting inter-network roaming according to the present invention includes the steps of: checking service authentication for a terminal roaming from a first network to a second network through the first network; And providing the terminal with predetermined information requested by the terminal.

A broadcast / multicast service method for supporting inter-network roaming according to the present invention includes: receiving a request signal from a terminal roaming from a first network to a second network; Confirming, by the second network, service authentication of the terminal through the first network; When the wish list of the terminal exists in the second network, transmitting the service guide to the terminal by the second network; If the wish list of the terminal does not exist in the second network, obtaining a service guide of the terminal from the first network and transmitting the service guide to the terminal; Another feature is that the terminal receiving the service guide is configured to transmit the requested BCAST content.

The broadcast / multicast service method for supporting inter-network roaming according to the present invention includes the steps of receiving a request signal from a BCAST subscription management unit (BSM) of the second network from a terminal roaming from a first network to a second network; ; Transmitting, by the BCAST subscription management unit (BSM) of the second network, a service authentication request signal to the BCAST subscription management unit (BSM) of the first network; Receiving a service authentication response signal from a BCAST subscription management unit (BSM) of the first network; Requesting, by the second network, the service guide of the terminal from the first network; Transmitting, by the second network, a service guide received from the first network to a corresponding terminal; Receiving, by the second network, a request signal for specific BCAST content from the terminal and transmitting the request signal to the first network; In another aspect, the second network is configured to receive and transmit the BCAST content to the corresponding terminal through the first network.

The broadcast / multicast service method for supporting inter-network roaming according to the present invention includes the steps of receiving a request signal from a BCAST subscription management unit (BSM) of the second network from a terminal roaming from a first network to a second network; ; Transmitting, by the BCAST subscription management unit (BSM) of the second network, a service authentication request signal to the BCAST subscription management unit (BSM) of the first network; Receiving a service authentication response signal from a BCAST subscription management unit (BSM) of the first network; Transmitting, by the second network, a service guide to a corresponding terminal; Receiving, by the second network, a request signal for specific BCAST content from the terminal and transmitting the request signal to the first network; In another aspect, the second network is configured to receive and transmit the BCAST content to the corresponding terminal through the first network.

In the broadcast / multicast service method supporting roaming between networks according to the present invention, a service guide is provided by a BCAST service distribution / application unit (BSDA) of the second network to a terminal roaming from a first network to a second network. Process of doing; Receiving, by the BCAST subscription management unit (BSM) of the second network, a BCAST service request signal from the terminal; Transmitting, by the BCAST subscription management unit (BSM) of the second network, a service authentication request signal to the BCAST subscription management unit (BSM) of the first network; Receiving a service authentication response signal from a BCAST subscription management unit (BSM) of the first network; Transmitting, by the BCAST subscription management unit (BSM) of the second network, the user right to the terminal; Another feature is that the BCAST service distribution / application unit (BSDA) of the second network is configured to transmit BCAST services.

In the method for providing content to a terminal roaming to a visited network for achieving the above object, a broadcast / multicast service method for supporting inter-network roaming according to the present invention, the terminal is provided in a home network When the request for content is requested, the visited network checking a service authentication of the terminal through a home network; In another aspect, the visited network is configured to receive a service guide from the home network and transmit the service guide to the terminal.

In the method for providing content to a terminal roaming to a visited network for achieving the above object, a broadcast / multicast service method for supporting inter-network roaming according to the present invention, the terminal is provided in a home network When the request for content is requested, the visited network checking a service authentication of the terminal through a home network; In another aspect, the visited network may include transmitting a new service guide obtained by merging the service guide received from the home network and its own service guide to the terminal.

Hereinafter, an embodiment of a broadcast / multicast service system and method for supporting inter-network roaming according to the present invention will be described with reference to the accompanying drawings.

According to the present invention, when a user who subscribes to a specific broadcast / multicast service (hereinafter referred to as BCAST) roams from a home network to a visited network, the BCAST service provided by the home network through the visited network is provided. To be provided. In this case, the visited network transmits the service guide of the home network to the user or merges the service guide of the home network with its service guide and transmits the service guide to the user.

In the present invention, when a user who subscribes to a specific BCAST service roams from the home network to the visited network, the visited network may check the authentication of the user from the home network and execute the BCAST service provided by the visited network. Provide an encryption key to the terminal of the user.

1 is a block diagram illustrating a configuration of a BCAST service system for implementing the present invention, which provides a content provider for providing content, and provides a BCAST service to a user and provides content protection or the BCAST service. A broadcast / multicast server (hereinafter referred to as a BCAST server) that performs maintenance / management, and a terminal receiving a BCAST service selected by a user from the BCAST server. The BCAST service system includes a broadcast distribution system (BDS) or an interaction network that distributes the BCAST service and performs an interactive function for bidirectional communication, and the broadcast distribution system. Or BDS Service Distribution for applying the interactive network to the bearer. In this case, the broadcast distribution system or the interactive network unit DVB-H (Digital Video Broadcasting-Handheld), MBMS (Multimedia Broadcast Multicast Service), BCMCS (Broadcast Multicast Service), ISDB-T (Integrated Service Digital Broadcasting-Terrestrial), It is a bearer that provides BCAST services such as T / S-DMB (Terrestrial / Satellite-Digital Multimedia Broadcasting).

The BCAST server broadcasts services using a BCAST service application (BSA) that performs the content protection or maintenance / management function of the BCAST service and a specific bearer (DVB-H, MBMS, BCMCS, etc.). And a broadcast service distribution / application unit for performing an interface, a content scheduling function, and the like, and a service / content protection to manage users who subscribe to the BCAST service. It includes a broadcast subscription management unit (broadcast subscription management, hereinafter referred to as BCAST subscription management unit) that performs management and user subscription information maintenance functions. At this time, the BCAST service application (BSA) in the BCAST server, the BCAST service distribution / application unit, and the BCAST subscription management unit transmit or exchange information and signals with each other through internal communication.

The terminal includes an application that receives the BCAST service, and an application that stores and edits a part of a BCAST service list provided by a BCAST service provider and stores information on a channel preferred by a user. In this case, the BCAST service preference information list edited and generated by the user by reflecting the user's preference based on the BCAST service list provided by the operator is called a wish list, and the wish list The application that manages the Wish List Management Application (Wish List Management Application).

The wish list management application separately manages the wish list, and when a user of a terminal subscribed to a service of a specific operator roams to a service area of another operator and receives another BCAST service list provided by the corresponding operator, the existing wish list Save and edit a portion of the list in the list. In addition, when the provider of the roaming visited network does not provide a service list for BCAST provided by a home network, the wish list management application may receive a service list from the home network in advance and store or receive a user from the provided service list. Must save the selected service to the wish list in advance.

In addition to the services provided by the own network, a service provider providing a specific service may transmit to the user a list of services provided by a network of another service provider that has a roaming agreement. At this time, the operator should specify that the service is provided by other providers than their own. That is, the BCAST server fetches the wish list of the terminal and checks whether it can currently provide the services on the wish list, and if it does not provide the service in the wish list, the other operator or another Includes a Wish List Checking Application that checks if the server can provide it.

The location list checking application exists in all BCAST servers, and even if a BCAST server of another operator has a roaming agreement between operators, the BCAST service provided by each BCAST server by interworking between the location list checking applications in the BCAST server of other providers. It is possible to check whether each user can provide the service required by the user.

The BCAST server may include a server broadcast list (hereinafter referred to as a server BCAST list) which periodically checks and stores the wish list of the terminal, or uses a separate storage means outside the BCAST server. Can be stored.

When the user requests the BCAST service, the server BCAST list facilitates the retrieval of related information, and stores the information about the service provided by the other operator and provided to the user, thereby providing the service to the user later. To facilitate this. In addition, even if a user does not edit and provide a separate wish list, the corresponding information may be stored in the BCAST server to provide a service to the user later.

FIG. 2 is a flowchart illustrating a first embodiment of a BCAST service method when a terminal roams from a home network to a visited network. FIG. 2 illustrates a BCAST service when a wish list for the terminal does not exist in a server BCAST list of a visited network. Way.

When a user of a terminal roaming from a home network to a visited network wants to receive BCAST service at a current location, the user operates the BCAST application in the terminal, and the terminal transmits the BCAST service guide to the BCAST subscription management unit (BSM) of the visited network. The request message or the BCAST service request message is transmitted (S11).

The BCAST subscription management unit (BSM) notifies the BCAST service distribution / application unit (BSDA) of the visited network to receive the BCAST service guide request message or BCAST service request message through internal communication (S13), and the home network of the terminal. Check the service authentication of the terminal user through the BCAST subscription management unit (BSM) (S15). At this time, since the BCAST service subscription information of the terminal user, that is, information on which service or service bundle the user subscribes to, exists in the home network, the BCAST subscription management unit (BSM) of the visited network may subscribe to the BCAST of the home network. Service authentication is performed by requesting subscription information of the user from the management unit (BSM).

The BCSAT subscription management unit (BSM) of the visited network confirming the authentication of the terminal informs the BCAST service distribution / application unit (BSDA) that the service authentication is confirmed through internal communication (S17), and the BCAST service distribution / The application unit (BSDA) checks whether the wish list of the terminal exists in the server BCAST list of the visited network. In this case, the server BCAST list is present in the BCAST server of the network, and may be stored in the BCAST service application (BSA), the BCAST subscription management unit (BSM), or the BCAST service distribution / application unit (BSDA) or stored in a separate storage means. It is managed by the location list confirmation application.

If the wish list of the terminal does not exist in the server BCAST list, the BCAST service distribution / application unit (BSDA) transmits a service guide request message to the BCAST service distribution / application unit (BSDA) of the home network (S19). ), The BCAST service distribution / application unit (BSDA) of the home network that has received the service guide request message receives the service of the terminal from the BCAST subscription management unit (BSM) and the BCAST service application (BSA) of the home network through internal communication. Collect the guide (S21). At this time, the BCAST service distribution / application unit (BSDA) of the home network collects the service guide based on the wish list of the corresponding terminal.

The BCAST service distribution / application unit (BSDA) of the home network transmits the collected service guide to the BCAST service distribution / application unit (BSDA) of the visited network (S23), and the BCAST service distribution / application unit of the visited network. (BSDA) transmits the service guide to the terminal (S25). In this case, the BCAST service distribution / application unit (BSDA) of the visited network transmits only the service guide received from the BCAST service distribution / application unit (BSDA) of the home network to the terminal or the BCAST service distribution / application unit of the home network. A new service guide obtained by merging the service guide of the visited network with the service guide received from (BSDA) may be transmitted to the terminal.

That is, a service guide transmitted from the BCAST service distribution / application unit (BSDA) of the home network to the BCAST service distribution / application unit (BSDA) of the visited network, and from the BCAST service distribution / application unit (BSDA) of the visited network. The service guide transmitted to the terminal may be the same service guide or may be different service guides.

When the user checks the service guide received by the terminal and selects content to be serviced among various programs or services in the service guide, the terminal transmits a BCAST content request message to the BCAST service distribution / application unit (BSDA) of the visited network. Transmit (S27). In this case, when the content desired by the user is a service provided by the home network, the BCAST service distribution / application unit (BSDA) of the visited network transmits the BCAST content request message to the BCAST service distribution / application unit of the home network. Transfer to (BSDA) (S27).

Upon receiving the BCAST content request message, the BCAST service distribution / application unit (BSDA) receives a content requested by a user from a content provider through internal communication with a BCAST service application (S29), and transmits the corresponding content to the BCAST of the visited network. It transmits to the terminal through a service distribution / application unit (BSDA) (S31).

3 is a flowchart illustrating a second embodiment of a BCAST service method when a terminal roams from a home network to a visited network, in which a wish list for the terminal exists in a server BCAST list of a BCAST server of a visited network; BCAST service method.

When a user of a terminal roaming from the home network to the visited network wants to receive BCAST service at the current location, the user operates the BCAST application of the terminal, and the terminal transmits the BCAST service guide to the BCAST subscription management unit (BSM) of the visited network. The request message or the BCAST service request message is transmitted (S41).

The BCAST subscription management unit (BSM) informs the BCAST service distribution / application unit (BSDA) of the visited network to receive the BCAST service guide request message or BCAST service request message through internal communication (S43), and the home network of the terminal. Check the service authentication of the terminal user through the BCAST subscription management unit (BSM) (S45).

The BCAST subscription management unit (BSM) of the visited network confirming the authentication of the terminal informs the BCAST service distribution / application unit (BSDA) that the service authentication of the terminal has been confirmed through internal communication (S47). The BCAST service distribution / application unit (BSDA) of the server checks whether the wish list of the terminal exists in the BCAST list. At this time, the server BCAST list exists in the BCAST server of the network, and exists in the BCAST service application (BSA) or BCAST subscription management unit (BSM) or BCAST service distribution / application unit (BSDA), to the wish list check application. Is managed by.

If there is a wish list of the terminal in the server BCAST list of the visited network, the BCAST service distribution / application unit (BSDA) transmits a service guide to the terminal (S49). At this time, the BCAST service distribution / application unit (BSDA) of the visited network transmits the service guide of the home network based on the wish list of the terminal to the terminal or merges its service guide with the service guide of the home network. One new service guide may be transmitted to the terminal. In addition, the BCAST service distribution / application unit (BSDA) of the visited network may collect a service guide of the terminal from the BCAST subscription management unit (BSM) and BCAST service application (BSA) of the visited network based on the wish list of the terminal. Can be.

When the user checks the service guide received by the terminal and selects content to be serviced among various programs or services in the service guide, the terminal sends a BCAST content request message to the BCAST service distribution / application unit (BSDA) of the visited network. Through the transmission to the BCAST service distribution / application unit (BSDA) of the home network through (S51).

The BCAST service distribution / application unit (BSDA) of the home network that receives the BCAST content request message receives the content requested by the user from a content provider through internal communication with a BCAST service application (S53), and visits the corresponding content. It transmits to the terminal through the BCAST service distribution / application unit (BSDA) of the network (S55).

FIG. 4 is a flowchart illustrating a third embodiment of a method for providing a BCAST service to a terminal roaming from a home network to a visited network, which is a BCAST service method when a terminal is transmitted before requesting a service guide.

The terminal roaming to the visited network receives the service guide from the BCAST service distribution / application unit (BSDA) of the visited network without accessing the home network (S61).

After checking the service guide, the user requests a right to use the BCAST subscription management unit (BSM) of the visited network to access a specific BCAST service (S63), the BCAST subscription management unit (BSM) of the visited network is the home Check the service authentication of the terminal from the BCAST subscription management unit (BSM) of the network. That is, the BCAST subscription management unit (BSM) of the visited network transmits a service authentication request message to the BCAST subscription management unit (BSM) of the home network (S65), and the BCAST subscription management unit (BSM) of the home network is a service of the terminal. The authentication is confirmed and a service authentication response message including the result of the verification is transmitted to the BCAST subscription management unit (BSM) of the visited network (S67). The right object is a right to use or access a BCAST service or a right to use the content requested by the user.

The BCAST subscription management unit (BSM) of the visited network confirming service authentication of the terminal transmits a right object for accessing or using a BCAST service to the user (S69), and distributes the BCAST service of the visited network. The application unit (BSDA) transmits the content requested by the user to the terminal through the BCAST service (S71). Here, the BCAST service distribution / application unit (BSDA) and the BCAST subscription management unit (BSM) transmit or exchange information and signals through internal communication.

The terminal receiving the content decodes the corresponding content using the right to use, and the BCAST subscription management unit (BSM) of the visited network generates charging information according to the use of the corresponding content (S73).

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention should be defined by the technical spirit of the appended patent technology scope.

As described above, the broadcast / multicast service system and method for supporting inter-network roaming according to the present invention can receive the BCAST service used in the home network by the terminal roaming from the home network to the visited network at the current location. It has an effect.

In addition, the broadcast and multicast service system and method for supporting network roaming according to the present invention, by setting the user's preferred BCAST service and by allowing the user to receive the corresponding BCAST service continuously regardless of location It has the effect of improving convenience and service satisfaction.

Claims (31)

A content provider for providing broadcast / multicast (hereinafter referred to as BCAST) content; When the terminal roams, the first network provides its service guide to a third network requesting a service guide based on the wish list of the terminal and checks and provides service authentication of the terminal; A broadcast / multi network supporting roaming between networks comprising a second network for confirming service authentication of a corresponding terminal from a home network according to a request signal transmitted from the roaming terminal and providing a service guide to the corresponding terminal. Cast service system. The method of claim 1, wherein the wish list is And a BCAST service preference information list edited and generated by the corresponding user by reflecting the preference information of the terminal user. The method of claim 1, wherein the request signal A broadcast / multicast service system supporting inter-network roaming, which is a signal for requesting BCAST service or BCAST service guide. The method of claim 1, wherein the first network and the second network is BCAST application (BSA); A BCAST service distribution / application unit (BSDA) for receiving a request for the service guide or the BCAST content and providing the service guide or BCAST content to a corresponding terminal; A BCAST subscription management unit (BSM) for checking service authentication of the terminal and providing a right to use the BCAST content; A broadcast / multicast service system supporting roaming between networks, wherein the BCAST content is configured as an entity that performs mutual functions for distributing the bidirectional communication. The method of claim 4, wherein the subject is A broadcast / multicast service system supporting inter-network roaming, comprising at least one of a broadcast distribution system (BDS) or an interactive network unit (IN) or a BDS service distribution unit (BDS-SD). The method of claim 1, wherein the service guide provided to the terminal And a service guide received from the first network or a service guide in which service guides of the first network and the second network are merged together. In a system for providing a BCAST service to a terminal roaming from a first network to a second network, A BCAST subscription management unit (BSM) of a visited network for requesting service authentication of the terminal to the first network according to a request of the terminal and providing a right to use the requested content to the terminal; A BCAST subscription management unit (BSM) of the first network that checks the service authentication of the terminal and provides a response to the service authentication request to the BCAST subscription management unit (BSM) of the second network; If there is no wish list for the terminal, the BCAST service distribution / application unit (BSDA) of the second network requesting the service guide of the terminal to the first network and providing the service guide or BCAST content to the terminal. Wow; When a request is received from a BCAST service distribution / application unit (BSDA) of the first network, a first network transmitting a service guide or BCAST content of the terminal to a BCAST service distribution / application unit (BSDA) of the second network. A broadcast / multicast service system supporting network roaming, comprising BCAST service distribution / application section (BSDA). The method of claim 7, wherein the wish list is And a BCAST service preference information list edited and generated by the corresponding user by reflecting the preference information of the terminal user. The method of claim 7, wherein the service guide provided to the terminal And a service guide received from the first network or a service guide in which service guides of the first network and the second network are merged together. Checking service authentication for a terminal roaming from a first network to a second network through the first network; And providing the predetermined information requested by the terminal to the corresponding terminal. The broadcast / multicast service method of supporting inter-network roaming. The method of claim 10, wherein the information is A broadcast / multicast service method for supporting inter-network roaming, comprising at least one of a BCAST service guide or BCAST content or right object. The method of claim 11, wherein the right to use When the terminal requests the BCAST service or BCAST content, broadcast / multicast service method for supporting inter-network roaming, characterized in that the right to access or use the BCAST service or BCAST content. Receiving a request signal from a terminal roaming from a first network to a second network; Confirming, by the second network, service authentication of the terminal through the first network; When the wish list of the terminal exists in the second network, transmitting the service guide to the terminal by the second network; If the wish list of the terminal does not exist in the second network, obtaining a service guide of the terminal from the first network and transmitting the service guide to the terminal; The broadcast / multicast service method for supporting roaming between networks, characterized in that the process of transmitting the BCAST content requested by the terminal receiving the service guide. The method of claim 13, wherein the wish list is And a BCAST service preference information list edited and generated by the corresponding user by reflecting the preference information of the terminal user. The method of claim 13, wherein the request signal is A broadcast / multicast service method supporting roaming between networks, which is a signal for requesting a BCAST service or a BCAST service guide. The process of claim 13, wherein the checking of the service authentication of the terminal is performed. Transmitting, by the BCAST subscription management unit (BSM) of the second network, a request signal to the BCAST subscription management unit (BSM) of the first network; And a BCAST subscription management unit (BSM) of the second network, receiving a response signal for the request signal. The service guide of claim 13, wherein the second network transmits to the terminal. And a service guide received from the first network or a service guide in which service guides of the first and second networks are merged. Receiving a request signal from a BCAST subscription management unit (BSM) of the second network from a terminal roaming from a first network to a second network; Transmitting, by the BCAST subscription management unit (BSM) of the second network, a service authentication request signal to the BCAST subscription management unit (BSM) of the first network; Receiving a service authentication response signal from a BCAST subscription management unit (BSM) of the first network; Requesting, by the second network, the service guide of the terminal from the first network; Transmitting, by the second network, a service guide received from the first network to a corresponding terminal; Receiving, by the second network, a request signal for specific BCAST content from the terminal and transmitting the request signal to the first network; And the second network receives the BCAST content through the first network and transmits the BCAST content to the corresponding terminal. The method of claim 18, The service guide received by the second network from the first network and the service guide transmitted by the second network to the terminal are the same. The method of claim 18, The service guide received by the second network from the first network and the service guide transmitted by the second network to the terminal are different from each other, and the network supports roaming. The service guide of claim 20, wherein the second network transmits the service guide to the terminal. And a service guide received from the first network and a service guide of a second network. The service guide is a new service guide generated by the second network. Receiving a request signal from a BCAST subscription management unit (BSM) of the second network from a terminal roaming from a first network to a second network; Transmitting, by the BCAST subscription management unit (BSM) of the second network, a service authentication request signal to the BCAST subscription management unit (BSM) of the first network; Receiving a service authentication response signal from a BCAST subscription management unit (BSM) of the first network; Transmitting, by the second network, a service guide to a corresponding terminal; Receiving, by the second network, a request signal for specific BCAST content from the terminal and transmitting the request signal to the first network; And the second network receives the BCAST content through the first network and transmits the BCAST content to the corresponding terminal. The method of claim 22, wherein the service guide The service guide generated in the first network, the broadcast / multicast service method supporting roaming between networks. The method of claim 22, wherein the service guide And a service guide generated by the second network. The method of claim 24, wherein the service guide The service guide generated by the first network and the service guide of the service guide of the second network merges, characterized in that the broadcast / multicast service method for supporting roaming between networks. Providing a service guide by a BCAST service distribution / application unit (BSDA) of the second network to a terminal roaming from the first network to the second network; Receiving, by the BCAST subscription management unit (BSM) of the second network, a BCAST service request signal from the terminal; Transmitting, by the BCAST subscription management unit (BSM) of the second network, a service authentication request signal to the BCAST subscription management unit (BSM) of the first network; Receiving a service authentication response signal from a BCAST subscription management unit (BSM) of the first network; Transmitting, by the BCAST subscription management unit (BSM) of the second network, the user right to the terminal; The BCAST service distribution / application unit (BSDA) of the second network is configured to transmit BCAST service. 27. The service guide of claim 26, wherein the service guide is Broadcast / multicast service method for supporting inter-network roaming, which is provided to the roaming terminal without a request of the terminal user. 27. The method of claim 26, wherein the right to use Broadcast / multicast service method for supporting roaming between the networks, characterized in that the user right to access or use the BCAST service requested by the terminal. The method of claim 26, And generating, by the BCAST subscription management unit (BSM) of the second network, billing information for the use of the BCAST service of the terminal. In the method for providing content to a terminal roaming to the visited network, When the terminal requests content provided by a home network, the visited network checking a service authentication of the terminal through a home network; And the visited network receives a service guide from the home network, and transmits the service guide to the terminal. In the method for providing content to a terminal roaming to the visited network, When the terminal requests content provided by a home network, the visited network checking a service authentication of the terminal through a home network; And a broadcast / multicast service method for supporting roaming between networks, wherein the visited network transmits a new service guide obtained by merging a service guide received from the home network and its own service guide to the terminal. .

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