KR20080089980A - System and apparatus for providing ubiquitous broadcast multicast services and method for providing services using the same - Google Patents

Abstract

A ubiquitous broadcast multicast service system and a method for offering the service using the same are provided to integrate broadcast and multicast service offered in different types of network environments, thereby offering united broadcast and multicast service. A UBMS(Ubiquitous Broadcast Multicast Server)(110) is composed of an adaptor module and a conversion module. The adaptor module performs network matching according to broadcast type multicast service control nodes and respective different types of networks. The conversion module converts contents to be provided according to the respective different types of networks. A plurality of clients transmits and receives contents and information correspondingly to the adaptor module according to the respective different types of networks. A contents server(130) stores contents data therein when a broadcast multicast is serviced. A UBMS gateway server(160) performs broadcast synchronizing, service interlocking, and contents roaming between the UBMS and another UBMS.

Description

System and apparatus for providing ubiquitous broadcast multicast services and method for providing services using the same

The following drawings attached to this specification are illustrative of preferred embodiments of the present invention, and together with the detailed description of the invention to serve to further understand the technical spirit of the present invention, the present invention is a matter described in such drawings It should not be construed as limited to

1 is a block diagram illustrating an environment of a ubiquitous broadcast multicast service system according to an embodiment of the present invention.

2 is a block diagram illustrating an operation of a ubiquitous broadcast multicast service system according to an embodiment of the present invention.

3 is a flowchart illustrating a ubiquitous broadcast multicast service providing procedure according to an embodiment of the present invention.

4 is a flowchart illustrating an example of an interworking flow with other networks in a ubiquitous broadcast multicast service system according to an embodiment of the present invention.

<Explanation of symbols for main parts of the drawings>

110: Ubiquitous Broadcast Multicast Server (UBMS)

120: interactive data management server (IDMS)

130: content server

140: service protection and billing server (SPAS)

160: UBMS gateway server (UUGS)

The present invention relates to broadcasting and multicast services of multimedia contents in a mobile communication network environment, and more particularly, to a system for providing a unified broadcasting and multicast service by integrating broadcasting and multicast services provided in a heterogeneous network environment. It is about.

With the recent rapid development of electronic engineering and communication engineering, mobile communication terminals have various functions. That is, with the rapid development of wireless communication and data processing technology, people can use not only voice calls but also Internet access, video communication and video message transmission using mobile communication terminals. In addition, due to the rapid dissemination of mobile communication terminals, mobile communication terminals have become an essential means of communication in modern life, such as a considerable amount of communication occurring in human relationships through mobile communication terminals.

Among various additional services other than the voice call service, a broadcast / multicast service that provides multimedia contents to a plurality of mobile communication terminals through a broadcast server of a mobile communication system is in the spotlight.

As one example, the Multimedia Broadcast / Multicast Service (hereinafter referred to as MBMS) is a point-to-multipoint service that is being standardized by the 3rd Generation Partnership Project (3GPP). It is a service support technology that efficiently utilizes radio resources and network resources to deliver increasing multimedia content information to multiple user terminals.

In the MBMS service, multimedia data is broadcast / multicasted from a data source through a mobile communication network and transmitted to a plurality of user terminals. This type of point-to-multipoint service can save network resources because the same service can be delivered to multiple user terminals in one transmission. MBMS services are mainly used in wireless communication network systems such as wideband code division multiple access (WCDMA), European mobile telephone (GSM) networks, and the like. MBMS data transmission basically includes a content transmission step from a data source, a service control network transmission step, a wireless network transmission step for supporting an area where a user terminal exists, and a reception step of the user terminal.

However, broadcasting / multicast technology operates independently of each other according to various network methods such as WCDMA, CDMA, WLAN, WiBro, etc., and also due to the unique method of each network of wired / mobile communication networks, There is a problem that cannot be linked.

The present invention was devised to solve the above problems, and provides a system in which broadcast / multicast services which are operated independently according to various network methods including a wireless network and a wired network are integrated with each other. There is a purpose.

In addition, another purpose is to provide a system that can accommodate various access networks by extending BM-SC, which is a core node of MBMS, which is an existing WCDMA-based broadcast / multicast technology.

Further objects and advantages of the present invention will be described below and will be appreciated by the embodiments of the present invention. Furthermore, the objects and advantages of the present invention can be realized by means and combinations indicated in the appended claims.

In order to achieve the above object, the ubiquitous broadcast multicast service system according to the present invention is a broadcast type multicast service control node (BM) that interoperates with a GGSN of a WCDMA core network to control a multimedia broadcast multicast service (MBMS). A system for providing a broadcast / multicast service interworking with heterogeneous networks by extending a SC, comprising: an adapter module for performing network matching for each broadcast type multicast service control node (BM-SC) and each heterogeneous network; A ubiquitous broadcast multicast server (UBMS) comprising a conversion module for converting content to be provided for each heterogeneous network; A plurality of clients corresponding to the adapter module for each heterogeneous network to transmit / receive contents and information; And a content server storing content data to be provided at the time of broadcast multicast service.

According to another aspect of the present invention, a broadcast multicast service control node (BM-SC) that interoperates with a GGSN of a WCDMA core network to control a multimedia broadcast multicast service (MBMS) is expanded to broadcast to interwork with heterogeneous networks. An apparatus for providing a cast / multicast service, comprising: a broadcast multicast service control module; An adapter module for performing network matching for each heterogeneous network; And a conversion module for converting content to be provided for each heterogeneous network. The ubiquitous broadcast multicast service apparatus is provided.

According to another aspect of the present invention, the broadcast type multicast service control node (BM-SC) for interworking with the GGSN of the WCDMA core network to control the multimedia broadcast multicast service (MBMS) is extended to interwork with heterogeneous networks. A method of providing a broadcast / multicast service, comprising: (a) receiving information from a content server and transmitting content service guide information to each heterogeneous network; (b) receiving information of terminals joined in a multicast group for each heterogeneous network; (c) receiving content data from a content server and converting the content data for each heterogeneous network; (d) instructing to establish a session with a terminal joined for each heterogeneous network and transmitting the converted content data through an adapter for each heterogeneous network; And (e) instructing to terminate the session set to each heterogeneous network when the transmission of the corresponding content data is completed, and confirming the release of the terminals in the multicast group for each heterogeneous network; providing a ubiquitous broadcast multicast service including a A method is provided.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

1 is a block diagram illustrating an environment of a ubiquitous broadcast multicast service system according to an embodiment of the present invention.

Referring to FIG. 1, the ubiquitous broadcast multicast service system 100 according to the present invention includes a ubiquitous broadcast multicast server (UBMS) 110, an interactive data management server (IDMS), and interactive data. management server (120), content server (130), service protection and accounting server (SPAS) 140, bootstrapping server (BS) 150, and UBMS gateway server (UUGS: UBMS to UBMS gateway server) (160).

In addition, the ubiquitous broadcast multicast service system 100 transmits and receives content information in cooperation with other operators or other ubiquitous broadcast multicast service systems 200 and 300 through the UUGS 160, and the content information May transmit to multiple clients via UBMS 110.

In detail, various content information may be broadcast / multicasted to various networks through the UBMS 110. That is, a packet data serving node (PDSN) interface 410 is transmitted to a CDMA terminal based on the CDMA network 400, or a gateway GPRS support node (GGSN) 510 is a wideband code division multiple access (W-CDMA) network. A computer terminal based on a 500-based W-CDMA terminal or an Asymmetric Digital Subscriber Line (ADSL) / very high-data rate digital subscriber line (VDSL) network 600 via an Internet Protocol MUX (610). To a WiBro terminal based on a WiBro (Wireless Broadband Internet) network 700 via an access control router (ACR) 710, or a wireless LAN (WLAN) network 800 through an access point (810) It can be transmitted to the wireless LAN computer terminal based on. Of course, the content information is a terminal based on various networks such as a Bluetooth / ZigBee network in addition to the CDMA network 400, the W-CDMA network 500, the ADSL / VDSL network 600, the WiBro network 700, and the WLAN network 800. May be sent to.

2 is a block diagram illustrating an operation of a ubiquitous broadcast multicast service system according to an embodiment of the present invention.

2, the ubiquitous broadcast multicast service system 100 according to the present invention, the ubiquitous broadcast multicast server 110, interactive data management server 120, content server 130, service protection And a billing server 140, a bootstrapping server (BS) 150, a UBMS gateway server 160, and a plurality of clients 170 corresponding to each network.

The ubiquitous broadcast multicast server 110 may include a broadcast type multicast service control module 111 corresponding to a broadcast type multicast service control node (BM-SC), and a conversion module for converting content to be provided for each heterogeneous network. 112, an adapter module 116 that performs network matching for each heterogeneous network.

As shown in FIG. 2, the ubiquitous broadcast multicast server 110 is connected to the content server 130 and interworked with the IDMS 120 and the SPAS 140 to include content information including over-the-air broadcasting or various additional information. Is provided to a plurality of clients 170, wherein the plurality of clients 170 is a CDMA terminal based on the CDMA network 400, a WCDMA terminal based on the WCDMA network 500, ADSL / xDSL, WiBro, WLAN network ( A terminal based on 600, 700, and 800 corresponds to this. That is, each terminal corresponds to a client 172 of a WCDMA network supporting an MBMS service, a client 174 of a CDMA network supporting a BCMCS service, and a client 176 of an IPTV network supporting an MHP, OCAP, and ACAP service. do.

The broadcast type multicast service control module 111 includes a content download service, a streaming service and a transmission processing unit that performs a reception report function, a data processing unit that is responsible for data compression, encryption, and encoding, and a service that notifies a content program. An announcement broadcasting processor, a subscriber session manager for each service, a QoS processor for improving service quality, and an IMS processor for providing a multicast for IMS group services are included.

Here, the transmission processor uses the FLUTE transmission function for the download transmission optimization, and SRTP transmission function for the streaming transmission optimization, and the reception report is report information for checking the status, such as data transmission success / failure Is used.

In addition, the data processor preferably uses an FEC encoding function to minimize upload traffic during encoding, and the service announcement broadcast processor preferably uses a general-purpose HTTP protocol for notification of a broadcast / multicast service program. Furthermore, the QoS processing unit can improve quality through bit-rate adjustment according to network type and situation (congestion or the like).

The conversion module 112 includes a bearer converter 113 for converting bearer traffic so as to correspond to each of heterogeneous networks, and a service guide converter 114 for converting a service guide format for each network. And a protocol conversion unit 115 for converting a signaling protocol scheme, and provide the content information to the plurality of clients 170 through them.

The adapter module 116 includes adapters for each heterogeneous network to perform network matching for each heterogeneous network. For example, the adapter module 116 may include a WCDMA adapter unit 117 corresponding to a WCDMA network client, a CDMA adapter unit 118 corresponding to a CDMA network client, an IP adapter corresponding to an IP network client of xDSL, WiBro, and WLAN. An adapter such as the unit 119 may be provided.

As such, the ubiquitous broadcast multicast server 110 converts a service guide format according to each network and converts a signaling protocol scheme, for example, using a BCMCS for broadcasting / multicast channel based on the CDMA network 400. (Broadcast Multicast Service) signaling is performed to match the CDMA network, and the interactive data management server (IDMS) 120 is, for example, a CDMA network 400, a W-CDMA network (as shown in FIG. 2). 500) and interworking with the ubiquitous broadcast multicast server 110 to retransmit the content information in case of a transmission error of the content information transmitted to the client based on the ADSL / VDSL network 600, and at the same time, the content server ( 130) to correct the transmission error of the content information.

Specifically, the IDMS 120 provides a file correction process for retransmitting a download file transmission error, an UBMS interworking process for performing subscriber session management and content retransmission, and an interactive supplementary service (eg, T-Commerce). Performs middle service interworking processing for interworking with additional service processing and terminal client platform (MHP / OCAP / ACAP, etc.).

The service protection and billing server (SPAS) 140 stores profile data for each client 170 and bootstrap key to the BS 150 for protection and management of such client information and content information. It requests and receives, encrypts the bootstrap key and distributes the same to the plurality of clients through the UBMS 110. In addition, the SPAS 140 generates billing data for each client and service type, and transmits the billing data to an external billing settlement server (not shown) through the UBMS 110.

The UBMS gateway server (UUGS) 160 transmits and receives various content information by interworking with ubiquitous broadcast multicast service systems 200 and 300 of other operators or other regions, and the other ubiquitous broadcast multicast service system ( In conjunction with the second UUGS 260 and the third UUGS 360 of the 200 and 300, mutual roaming of contents by region of each operator, time synchronization for real-time broadcasting service, and service guide interworking function of different information formats by region of each operator are performed. do.

The content server 130 stores various content data to be provided in a broadcast multicast service, and utilizes security processing using technology such as DRM, content data distribution processing, and content data for various networks for content protection. Database processing is performed to store and manage content data by classifying them into differential quality.

Next, a method of providing the ubiquitous broadcast multicast service using the ubiquitous broadcast multicast service system 100 having the above-described configuration will be described with reference to FIG. 3.

3 is a flowchart illustrating a ubiquitous broadcast multicast service provision procedure according to an embodiment of the present invention.

As shown in FIG. 3, in order to provide a ubiquitous broadcast multicast service according to the present invention, first, the UBMS 110 of the ubiquitous broadcast multicast service system 100 is connected to a broadcast multicast service through each heterogeneous network. Inform the guide information by sending the guide information. In this case, for example, in case of CDMA supporting BCMCS, guide information is transmitted to a BSN (including PDSN), and in case of xDSL / WLAN, the information is transmitted directly to a terminal (including a PC).

In this manner, each heterogeneous network that receives the guide information receives a content request for various contents such as broadcast content or a movie of IPTV from a client included in the network, and joins the multicast group to each multicast group. The information is transmitted by being provided to the UBMS 110. That is, multicast group join processing is processed in each heterogeneous network, and multicast group information as a result of the processing is integratedly managed by the UBMS 110. For example, in the case of BCMCS of a CDMA network, join processing is performed by a BCMCS registration procedure, and in the case of xDSL and WLAN networks, a multicast group join procedure by IGMP is performed.

Next, based on the multicast group join information, the adapter corresponding to the client of each heterogeneous network proceeds to match the network, the scheme, and the client to be optimized.

In this case, an authentication process may be performed. In other words, the UBMS 110 processes the authentication for the multicast group join information in association with the SPAS 140 (S302). That is, the SPAS 140 performs verification on the client based on a predetermined IP address and profile data about the client, requests and receives a bootstrap key from the BS 150, and encrypts the bootstrap key. It can be encrypted and distributed to a plurality of clients through the UBMS 110 to process authentication. After the authentication is processed, the UBMS 110 searches for and collects information about the corresponding content through the content server 130 and the UUGS 160 to prepare for transmission to the corresponding client.

For example, in response to a request for home shopping broadcast content of an IPTV, the UBMS 110 performs a search on the content server 130 to collect corresponding home shopping broadcast content information, or home shopping corresponding to the content server 130. If there is no broadcast content information, the IPTV stored in the ubiquitous broadcast multicast service system 200 or 300 of another service provider or another region is linked to the second UUGS 260 and the third UUGS 360 through the UUGS 160. The home shopping broadcast content information is received and prepared to be transmitted to the IP address of the corresponding client.

After preparing to transmit information about the content to be retrieved and collected and transmitted to the client as described above, the UBMS 110 converts the content data into a packet form suitable for the network method of the client through the conversion module. At this time, a procedure of converting bearer traffic for each heterogeneous network, converting a service guide format, and converting a signaling protocol scheme may be performed.

Next, before the converted content data is transmitted to a client of each heterogeneous network, a process of distinguishing whether the network including the client is a wireless network or a wired network is performed.

In the case of a wireless network, a procedure for requesting radio resource setup to a corresponding network and instructing a session to be established is performed (S 60).

In the case of the wireless network, after the session is established, in the case of the wired network, the corresponding content data converted by the UBMS 110 is converted into the PDSN interface 410, the GGSN 510, the IPMUX 610, the ACR 710, and the like. To the AP 810, to the CDMA terminal via the PDSN interface 410, to the W-CDMA terminal via the GGSN 510, to the computer terminal via the IPMUX 610, and to the WiBro via the ACR 710. The terminal transmits the content data to the wireless LAN computer terminal through the AP 810 so that the corresponding client can receive and use the content.

At this time, if it is determined that the confirmation signal for receiving the content from some of the clients is not transmitted to the UBMS (110), the transmission error, CDMA terminal 430, W-CDMA terminal 530, computer terminal 620, In connection with the WiBro terminal 730 and the IDMS 120, correction of content information having a transmission error is performed. After correcting the content information of the transmission error, the UBMS 110 retransmits the corrected content data to the client where the transmission error occurred. Accordingly, the content is transmitted to a plurality of clients such as the CDMA terminal 430, the W-CDMA terminal 530, the computer terminal 620, the WiBro terminal 730, and the wireless LAN computer terminal 820 through the UBMS 110. Simultaneously transmitting without error, content information can be provided to multiple clients.

As such, when the UBMS 110 transmits the corresponding content data to the corresponding client and the transmission is completed, each client transmits a confirmation signal for receiving the content to the UBMS 110. After receiving the transmission completion signal, the UBMS 110 transmits a session termination instruction to each heterogeneous network, and the multicast group joined to each heterogeneous network is released and the corresponding information is transmitted to the UBMS 110 for confirmation. The provision of the broadcast multicast service to the network is completed. (S80, S90)

4 is a flowchart illustrating an example of an interworking flow with other networks in a ubiquitous broadcast multicast service system according to an embodiment of the present invention.

Referring to FIG. 4, a procedure for accommodating and controlling access to another network (eg, CDMA network xDSL / WLAN network) will be described based on the UBMS that extends BM-SC, which is an MBMS providing node of a WCDMA network.

First, each access network operator receives an individual subscription request to process a subscription. That is, the procedure of receiving an individual subscription to the UBMS from the CDMA network BSN (1-a) and receiving an individual subscription to the UBMS from the xDSL / WLAN network terminal (1-b) is performed. This procedure may be performed offline. (1)

Next, UBMS receives the information from the content server and transmits the service contents (time schedule, etc.) to each access network. Here, the CDMA network transmits from the UBMS to the BSN (including PDSN) (2-a), and the xDSL / WLAN network transmits from the UBMS to the terminal (PC, etc.) (2-b).

Subsequently, after receiving the service content, terminals in each access network join to the multicast group. At this time, UBMS is integrated management of multicast group. In the CDMA network, the join is performed by the BCMCS registration procedure (3-a), and in the xDSL / WLAN network, the join is performed in the multicast group by IGMP (3-b).

Then, the UBMS receives the information from the content server and transmits data after the radio resource setting request to the CDMA network (4-a). Here, the xDLS / WLAN network does not require separate resource configuration. In addition, in a CDMA network, a session is initiated and a transmission proceeds by performing a bearer routing procedure. (4, 5, 6)

When the transmission is completed and terminated as described above, a radio resource release request 7-a is received from the content server to the CDMA network, and the bearer path is released from the CDMA network to terminate the session.

As such, when the transmission ends, the terminals in each access network terminate the connection from the multicast group. That is, in the CDMA network, the connection is terminated by the BCMCS deregistration procedure (8-a), and in the xDSL / WLAN network, the connection of the multicast group is terminated by IGMP (8-b).

The terms or words used in this specification and claims are not to be construed as limiting in their usual or dictionary meanings, and the inventors may appropriately define the concept of terms in order to best explain their invention in the best way possible. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

According to the present invention, a broadcast / multicast service made according to various network schemes is integrated into one system, thereby providing an effect of interworking broadcast / multicast services between end points of each network.

In addition, broadcast / multicast services of multimedia contents can be integrated into one to create mutual synergies such as enjoying various contents of customers and maximizing potential customers.

Claims (14)

Expanding the Broadcast Multicast Service Control Node (BM-SC) that controls the Multimedia Broadcasting Multicast Service (MBMS) in conjunction with the GGSN of the WCDMA core network, providing broadcast / multicast services interworking with heterogeneous networks. As a system, A ubiquitous broadcast multicast server (UBMS) comprising a broadcast multicast service control node (BM-SC), an adapter module for performing network matching for each heterogeneous network, and a conversion module for converting content to be provided for each heterogeneous network; A plurality of clients corresponding to the adapter module for each heterogeneous network to transmit / receive contents and information; And Ubiquitous broadcast multicast service system comprising a; content server that stores content data to be provided at the time of broadcast multicast service. The method of claim 1, A ubiquitous broadcast multicast server further comprises a UBMS gateway server for performing broadcast synchronization, service interworking, and content roaming between the ubiquitous broadcast multicast server (UBMS) and other operators or other ubiquitous broadcast multicast servers. Cast service system. The method according to claim 1 or 2, The conversion module, A bearer converting unit converting bearer traffic for each heterogeneous network; A service guide conversion unit for converting a service guide format for each heterogeneous network; And Ubiquitous broadcast multicast service system comprising a; protocol conversion unit for converting the signaling protocol scheme for each heterogeneous network. The method according to claim 1 or 2, The adapter module, A WCDMA adapter unit corresponding to the WCDMA network client; A CDMA adapter unit corresponding to the CDMA network client; An ubiquitous broadcast multicast service system comprising: an IP adapter unit corresponding to an IP network client of xDSL, WiBro, and WLAN. The method according to claim 1 or 2, The plurality of clients, A ubiquitous broadcast multicast service system comprising a client of a WCDMA network supporting an MBMS service, a client of a CDMA network supporting a BCMCS service, and a client of an IPTV network supporting an MHP, OCAP, and ACAP service. The method according to claim 1 or 2, The ubiquitous broadcast multicast service system further comprises an interactive data management server (IDMS) for providing interactive services from subscriber stations in association with the UBMS, a plurality of clients, and a content server. The method according to claim 1 or 2, Ubiquitous broadcast multicast service system further comprises a service protection and billing server (SPAS) to perform subscriber management and billing processing in conjunction with the UBMS. The method according to claim 1 or 2, The broadcast multicast service control node (BM-SC), Transfer processing to download and stream content, data processing to perform data compression, encryption and encoding, service announcement processing to perform content program notifications, session management processing to perform subscriber session management by service, and service quality adjustment. A ubiquitous broadcast multicast service system, characterized in that it performs a processing consisting of any one or a combination of QoS processing to be performed and IMS service processing to perform multicast for the grouped services of the IMS. Expanding the Broadcast Multicast Service Control Node (BM-SC) that controls the Multimedia Broadcasting Multicast Service (MBMS) in conjunction with the GGSN of the WCDMA core network, providing broadcast / multicast services interworking with heterogeneous networks. As a device, A broadcast multicast service control module; An adapter module for performing network matching for each heterogeneous network; And Ubiquitous broadcast multicast service device including a; conversion module for converting the content to be provided for each heterogeneous network. The method of claim 9, The conversion module, A bearer converting unit converting bearer traffic for each heterogeneous network; A service guide conversion unit for converting a service guide format for each heterogeneous network; And Ubiquitous broadcast multicast service apparatus comprising a; protocol conversion unit for converting the signaling protocol scheme for each heterogeneous network. The method according to claim 9 or 10, The adapter module, A WCDMA adapter unit corresponding to the WCDMA network client; A CDMA adapter unit corresponding to the CDMA network client; An ubiquitous broadcast multicast service apparatus comprising: an IP adapter unit corresponding to an IP network client of xDSL, WiBro, and WLAN. The method according to claim 9 or 10, The broadcast type multicast service control module, Transfer processing to download and stream content, data processing to perform data compression, encryption and encoding, service announcement processing to perform content program notifications, session management processing to perform subscriber session management by service, and service quality adjustment. A ubiquitous broadcast multicast service apparatus, characterized in that performing any one or a combination of QoS processing to be performed and IMS service processing to perform multicast for the grouped services of the IMS. Expanding the Broadcast Multicast Service Control Node (BM-SC) that controls the Multimedia Broadcasting Multicast Service (MBMS) in conjunction with the GGSN of the WCDMA core network, providing broadcast / multicast services interworking with heterogeneous networks. As a method, (a) receiving information from a content server and transmitting content service guide information to each heterogeneous network; (b) receiving information of terminals joined in a multicast group for each heterogeneous network; (c) receiving content data from a content server and converting the content data for each heterogeneous network; (d) instructing to establish a session with a terminal joined for each heterogeneous network and transmitting the converted content data through an adapter for each heterogeneous network; And (e) instructing the end of the session set to each heterogeneous network when the transmission of the corresponding content data is completed, and confirming the release of the terminals in the multicast group for each heterogeneous network; providing a ubiquitous broadcast multicast service including a . The method of claim 13, Step (c) is, A method for providing ubiquitous broadcast multicast service, comprising converting bearer traffic for each heterogeneous network, converting a service guide format, and converting a signaling protocol scheme.

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