KR101128851B1 - Method and System for Subscribing and Cancelling Broadcast Multicast Service for Dynamic Content Delivery - Google Patents

Abstract

The present invention relates to a BCMCS subscription method, a BCMCS termination method, and a DCD / BCMCS interworking system for providing a content transmission service to a mobile terminal through interworking between the DCD system and the BCMCS system.

In the present invention, a mobile terminal, a DCD system including a DCD server, and a BCMCS subscription method for the mobile terminal for receiving content through the DCD system and the BCMCS system in a total system including the BCMCS system, (a) a service subscription request step of receiving, by the DCD server, a service subscription request message for a specific channel including the content from the mobile terminal, and storing subscriber information using the user of the mobile terminal as a subscriber; (b) A service subscription confirmation step of the DCD server confirming whether the service support for the specific channel of the mobile terminal is possible through UAPS, and transmitting a service subscription confirmation message to the mobile terminal, (c) an SMD center from the DCD server; Receiving the subscriber information previously stored in the step (a), by registering the subscriber BCMCS registration step of registering the subscriber's mobile terminal with a BCMCS terminal, (d) Subscriber authentication for receiving and storing the generated RK by requesting generation of RK, which is authentication related information for the subscriber, to the SMD center by AC. And (e) collecting information by the SMD center to transmit program ID information and service detailed information about a specific channel to the mobile terminal. It provides a BCMCS subscription method for providing a transmission service.

According to the present invention, by interworking the DCD system and the BCMCS system and providing a BCMCS subscription method for subscribing the mobile terminal of the user to the BCMCS, the same content can be simultaneously transmitted to a plurality of mobile terminals, thereby transmitting the content. It has the effect of reducing the load on the DCD server or DCD CP and improving the transmission efficiency of the bandwidth-limited network.

DCD, BCMCS, Mobile Terminal, Content

Description

Method of subscribing to the BCMCS to provide content delivery service to the mobile terminal through linking the DCC system with the BCMCS system, the method of canceling the BCMCS, and the DCC / BCMCS interworking system therefor {Method and System for Subscribing and Canceling Broadcast Multicast Service for Dynamic Content Delivery}

The present invention relates to a BCMCS subscription method, a BCMCS termination method, and a DCD / BCMCS interworking system for providing a content transmission service to a mobile terminal through interworking between the DCD system and the BCMCS system. More specifically, by providing a BCMCS subscription method for interworking a DCD system and a BCMCS system and subscribing a mobile terminal of a user to the BCMCS, the same content can be simultaneously transmitted to a plurality of mobile terminals, thereby transmitting content. If the DCD server or DCD CP reduces the load, improves the transmission efficiency of the bandwidth-constrained network, and the BCMCS-subscribed mobile terminal does not need to transfer content by interworking with the BCMCS system and the DCD system, the BCMCS of the mobile terminal By providing a termination method, it is possible to meet the changed needs of the mobile terminal user's content delivery service method, BCMCS subscription method for providing a content delivery service to the mobile terminal by interworking with the DCD system and the BCMCS system, Regarding BCMCS termination method and DCD / BCMCS interworking system therefor will be.

Nowadays, due to the expansion of network infrastructure, there are many content providers that produce and store the contents that users want, and users can receive the contents by visiting the relevant sites operated by these contents providers. .

In order to effectively deliver such contents, Web Syndication is urgently needed to deliver information produced and changed in real time on the Internet, and RSS (Really Simple Syndication) is a kind of Web Syndication. ), And ATOM have been proposed and become a standard, and such a content can be distributed by RSS (Really Simple Syndication), ATOM, etc., and collection of content through a program such as RSS Reader has also become much smoother.

However, in a relatively resource-constrained mobile environment, access to content distributed using RSS / ATOM as in a PC environment is limited. In order to solve this problem, there is a demand for a method for delivering the collected content in an optimized form for mobile terminals, and a representative example is Dynamic Content Delivery (DCD), which is being promoted by the Open Mobile Alliance (OMA). "DCD"). The purpose of the DCD service using the DCD technology is to deliver the contents desired by the user to the terminal user in the most effective manner by reflecting the user's preference. As a content delivery technique, the DCD server updates the contents ( Transmission) A push method using a DCD-2 interface for receiving a content update (transmission) request message from a terminal and transmitting the corresponding content to the terminal by transmitting a notification message to the terminal has been proposed. By the push method using the DCD-2 interface, the user's terminal accesses the site on the wireless Internet in the existing mobile service and goes through the various steps to find the content, thereby making it difficult for the user to visit the content. The purpose of the DCD is to provide the contents desired by the user by maximizing the reflection of the user's preferences without delivering the information to the user's terminal. In other words, the DCD service is a user-customized content transmission service to the user. In addition, the DCD also accepts a pull method using a DCD-1 interface in which a DCD server transmits content to a terminal by a content updater (transmission) request from an existing user's terminal.

Meanwhile, in order to transmit the same information (multimedia including streaming, text message, voice, etc.) to a plurality of user terminals, the same information must be repeatedly transmitted as many as the number of terminals. A broadcast or multicast transmission technology is used to solve the terminal and network inefficiency caused by such repeated transmission, and a broadcaster or a broadcaster may use the broadcast or multicast ( Multicast) Broadcast / Multicast Service (BCMCS, hereinafter referred to as "BCMCS"), a service for transmitting data such as video, voice, and messages to a user using a transmission technology, has been proposed, and 3GPP2 ( Standardization organizations such as 3rd Generation Partnership Project 2), telecommunications companies, and manufacturers in each country are discussing standards for BCMCS.

The conventional DCD service mentioned for transmitting customized content to a mobile terminal is a mobile terminal capable of receiving contents (multimedia data) to DCD service users, managing various transmission methods according to the user's plan, type of content, and receiving the content. There is an advantage in that it can provide a customized service including management of the state of.

However, in order to transmit the same content to a plurality of mobile terminals, the above-mentioned conventional DCD service for transmitting customized content to a mobile terminal has to transmit the same content to each mobile terminal in a unicast manner. have.

In addition, the problem of transmitting the same content to each individual mobile terminal in a unicast manner increases the load on the DCD server or DCD CP that transmits the content and causes a problem of reducing the transmission efficiency of a bandwidth-limited network. Let's do it.

In order to solve this problem, the present invention provides a BCMCS subscription method for interworking a DCD system and a BCMCS system and subscribing a mobile terminal of a user to each BCMCS, thereby simultaneously transmitting the same content to a plurality of mobile terminals. The purpose is to reduce the load on the DCD server or DCD CP for transmitting content and to improve the transmission efficiency of a bandwidth-limited network.

In addition, the present invention provides a method for canceling the BCMCS of the mobile terminal when the mobile terminal subscribed to the BCMCS does not need the content transmission by interworking with the BCMCS system and the DCD system, thereby providing a method for the content transmission service of the user of the mobile terminal. Its purpose is to meet the changing needs.

According to an aspect of the present invention for achieving this object, in the mobile system, a DCD system including a DCD server, and a total system including a BCMCS system, for receiving the content through the interworking of the DCD system and the BCMCS system In the BCMCS subscription method for the mobile terminal, (a) the DCD server receives a service subscription request message for a specific channel including the content from the mobile terminal, subscriber information by using the user of the mobile terminal as a subscriber; A service subscription request step of storing the service subscription; (b) a service subscription confirmation step of confirming whether the DCD server supports the service for the specific channel of the mobile terminal through UAPS, and transmitting a service subscription confirmation message to the mobile terminal; (c) the subscription is previously stored in step (a) by the SMD center from the DCD server; BCMCS registration step of registering the subscriber to the BCMCS terminal by receiving the information, by registering the subscriber, (d) the SMD center requests AC to create RK, authentication-related information for the subscriber, A subscriber authentication step of receiving and storing the generated RK, and (e) an information collection step of transmitting, by the SMD center, program ID information and service detailed information on a specific channel to the mobile terminal. It provides a BCMCS subscription method for providing a content transmission service to a mobile terminal through interworking between the system and the BCMCS system.

According to another aspect of the present invention, in the mobile terminal, the DCD system including the DCD server, and the entire system including the BCMCS system, for the mobile terminal receiving content through the DCD system and the BCMCS system interworking; In the BCMCS termination method, (a) the DCD server receives a service cancellation request message for the particular channel from the subscriber's mobile terminal for the particular channel containing the content, and is stored when the service subscription for the particular channel A service cancellation request step of deleting subscriber information, (b) the DCD server transmits service cancellation information for the specific channel of the mobile terminal to the specific channel by the U-Key via the UAPS to the U-Key; The additional service that was previously subscribed when the service subscription for the service is terminated, the DCD server to the mobile terminal A service termination confirmation step of transmitting a service termination confirmation message for a previous service; (c) a SMD center receives service termination subscriber information for the service from the DCD server, and terminates the mobile terminal of the subscriber at a BCMCS terminal; BCMCS termination step, and (d) the SMD center transmits the service termination information to the mobile terminal via the OTA, the information deletion step of deleting the BAK previously stored when the mobile terminal BCMCS subscription; The BCMCS termination method of a mobile terminal that has been provided with a content transmission service through interworking with a DCD system and a BCMCS system is provided.

According to another aspect of the present invention, in the entire system including a plurality of mobile terminals, a DCD server, and a BCMCS system, DCD / BCMCS interworking for simultaneously transmitting the same content to the plurality of mobile terminals A system comprising: (a) a server to which a plurality of mobile terminals are connected, storing the same content, transmitting the same content to the plurality of mobile terminals, and providing a service for a specific channel from the plurality of mobile terminals. A DCD server receiving a subscription request and storing subscriber information for a plurality of subscribers subscribed to the service for the specific channel, and (b) the plurality of mobile terminals subscribed to the service receive the specific channel. UAPS performing a function of checking whether the terminal can be provided with the service, and (c) the plurality of mobile terminals. A U-KEY which receives a request message for additional service subscription from the DCD server to perform the additional service subscription process, and (d) receives and stores subscriber information for the plurality of subscribers from the DCD server, and stores the plurality of subscribers. Manages BCMCS registration for subscribers, stores RK which is authentication related information for the plurality of subscribers, and provides a program ID information and a specific channel service necessary for the plurality of mobile terminals to receive the service for the specific channel; A SMD center for storing and managing detailed information; and (e) receiving a request for generation of the RK, which is authentication related information of the plurality of subscribers, for the service of the specific channel from the SMD center, and generating AC to perform the function of transmitting the received RK to the SMD center, and (f) the plurality of SMDs from the SMD center. It provides a DCD / BCMCS interlock system now transmits the same contents to a plurality of mobile terminals comprising the OTA performing the SMS transmission function for the program ID information sent by the same terminal at the same time.

As described above, according to the present invention, by interworking the DCD system and the BCMCS system and providing a BCMCS subscription method for subscribing the mobile terminal of the user to the BCMCS, the same content can be simultaneously transmitted to a plurality of mobile terminals. This reduces the load on the DCD server or DCD CP that transmits the content and improves the transmission efficiency of the bandwidth-limited network.

In addition, according to the present invention, when the mobile terminal subscribed to the BCMCS is not required to transfer the content by interworking with the BCMCS system and the DCD system, by providing a method for canceling the BCMCS of the mobile terminal, the content transmission service method of the user of the mobile terminal. It has the effect of satisfying the changed demand for.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function is obvious to those skilled in the art or may obscure the gist of the present invention, the detailed description thereof will be omitted.

FIG. 1 is a diagram illustrating a dynamic content delivery (DCD) system.

1 is a BCMCS subscription for providing a content transmission service to a mobile terminal through interworking with a DCD system and a broadcast / multicast service (BCMCS, hereinafter referred to as "BCMCS") system according to a preferred embodiment of the present invention. A diagram of a method, a BCMCS termination method for stopping a content delivery service, and a DCD system for a DCD / BCMCS interworking system therefor.

Referring to FIG. 1, the DCD system transmits content produced or stored in the DCD CP 140 to the DCD server 150, and the DCD server 150 transmits the received content to the DCD client 110 in the mobile terminal 100. By transmitting to, the DCD application 120 is a system for the DCD service to be represented by the standby screen of the mobile terminal 100.

Referring to FIG. 1, a DCD system for a DCD service for transmitting content to a standby screen of a mobile terminal 100 includes a mobile terminal 100 and a DCD content providing server including a DCD client 110 and an application 120. (DCD Content Provider: DCD CP, hereinafter referred to as "DCD CP") 140, DCD server 150, and the network 130.

Referring to FIG. 1, a DCD service may be described as a client server model. The DCD service may be performed by interworking with a DCD client 110 serving as a client and a DCD server 150 serving as a server. The content is transmitted to the standby screen of the mobile terminal 100 through the DCD CP 140, the DCD server 150, the DCD client 120, and the DCD application 110 in sequence.

The network 130 is a path for transmitting a message or content from the DCD server 150 to the DCD client 110 of the mobile terminal 100. The network 130 includes a CDMA 1x network, an EVDO network, a WCDMA network, an HSDPA network, a HSUPA network, and a Wibro network. It may be configured in at least one or more of a mobile communication network, such as a wireless network, such as a WiFi network, a wired Internet (Wired Internet), and a broadcast (Broadcast) network, the DCD CP 140 and the DCD server 150 One or more of which may include a DCD system.

FIG. 2 is a diagram illustrating a BCMCS (BroadCast MultiCast Service: BCMCS) system.

2 is a BCMCS subscription method for providing a content delivery service to a mobile terminal through interworking of a DCD system and a BCMCS system according to a preferred embodiment of the present invention, a BCMCS termination method for stopping a content delivery service, and a DCD / BCMCS therefor. A diagram of a BCMCS system for an interworking system.

BCMCS provided by the BCMCS system is a service that provides the same information (same multimedia including text messages, streaming, voice, video, images, etc.) to multiple users through a single link, and repeatedly transmits the same information in a wireless section. It is a service to get rid of.

Such a BCMCS can be divided into a broadcast service (BCS, hereinafter referred to as "BCS") and a multicast service (MCS, hereinafter referred to as "MCS"), and the MCS is a user belonging to a restricted multicast group. It is a service in which the same information is transmitted only to a mobile terminal of. In order to belong to a limited multicast group, a user must go through a procedure of subscribing to a multicast service. On the other hand, BCS is a service in which the same information is transmitted to a mobile terminal existing in a specific area on a boundary of a specific area (cell, sector, etc.) that is a broadcast area, and the location information based on the specific area, Traffic information, for example, can be divided into public and private services depending on the nature of the service.

Referring to FIG. 2, the BCMCS system 200 transmits the same information to the plurality of mobile terminals 1, 2, 3, 4, 5, and 6 in the broadcast area 220 through the network 210. Can broadcast (broadcast) at the same time. In addition, the BCMCS system 200 simultaneously transmits (multicast) the same information to the mobile terminals 1, 2, and 3 of users belonging to the multicast group 230 generated by the MCS subscription through the network 210. Can be.

However, if a paid BCS is used, a user's subscription is required, and if only the subscribed users receive the BCS, there is a claim that the entirety of the MCS should be viewed since the distinction from the MCS is ambiguous. Therefore, in the present invention, the BCSCS is unified and described as BCMCS without distinction.

Referring to FIG. 2, the network 210 includes a mobile communication network such as a CDMA 1x network, an EVDO network, a WCDMA network, an HSDPA network, a HSUPA network, a Wibro network, a wireless network such as a WiFi network, a wired Internet, and a broadband network. It may be configured in at least one or more forms of a broadcast (Broadcast) network, it may be configured to include the above-described BCMCS system 200. An internal configuration of the BCMCS system 200 will be described in detail with reference to FIG. 5.

3 is a flowchart illustrating a BCMCS subscription method of a mobile terminal for receiving content through interworking with a DCD system and a BCMCS system according to a preferred embodiment of the present invention.

3 is a flowchart illustrating a method for subscribing a mobile terminal to a BCMCS in order to transfer contents to a mobile terminal by interworking each of the DCD system and the BCMCS system described above with reference to FIGS. 1 and 2.

Referring to FIG. 3, the BCMCS system is referred to as a Web / WAP Gateway (WEB / WAP GW, hereinafter referred to as “WEB / WAP GW”), and a UAPS (User Agent Profile Server: UAPS, hereinafter referred to as “UAPS”). ), U-Key, SMD (Scheduled Multimedia Download (SMD), hereinafter referred to as "SMD") Center, AC (Authentication Center: AC, hereinafter referred to as "AC"), and OTA (Over-The-Air: OTA, hereinafter) "OTA"), and the DCD system includes a DCD server and the like.

The mobile terminal must subscribe to the BCMCS in order to receive the content through the interworking of the BCMCS system and the DCD system having the above-described internal configuration, and the procedure for the BCMCS subscription method is shown in FIG. 3.

UAPS (User Agent Profile Server) is a server that manages the subscriber's mobile terminal, and performs the function of checking whether the user's mobile terminal supports the service desired by the user.

U-Key is a system that performs subscription processing of a subscriber's services and additional services, and performs a function of managing which services or additional services the subscriber subscribes to.

The scheduled multimedia download (SMD) center functions as a center for a broadcast multicast service (BCMCS) system.

The AC (Authentication Center) performs an authentication management function for the subscriber using the BCMCS.

OTA (Over-The-Air) transmits a message (SMS) containing a specific command between devices in a BCMCS system or between a device and a mobile terminal.

Detailed functions performed by the UAPS, U-Key, SMD center, AC, and OTA according to the BCMCS subscription method of another mobile terminal according to the present invention will be described next.

Referring to FIG. 3, in the BCMCS subscription method of a mobile terminal for receiving content through a DCD system and a BCMCS system interworking according to a preferred embodiment of the present invention, the DCD server subscribes to a service for a specific channel including content from the mobile terminal. A service subscription request step of receiving a request message (S 302) and storing subscriber information using the user of the mobile terminal as a subscriber (S 304), whether the DCD server can support service for a specific channel of the mobile terminal through UAPS. The service subscription confirmation step of confirming (S 306) and transmitting a service subscription confirmation message to the mobile terminal (S 308), and the SMD center receives the subscriber information previously stored in the DCD server in step S 304 from the DCD server. By registering (S 310), the BCMCS registration step of registering the subscriber's mobile terminal as a BCMCS capable BCMCS terminal, the SMD center subscribes to AC The subscriber authentication step of requesting generation of RK, which is authentication related information about the service (S 312), receiving (S 314) and storing the generated RK (S 316), and the SMD center provides program ID information and service details for a specific channel. It includes information collecting step (S 318, S 320, 322, 324) for transmitting the information to the mobile terminal.

Before step S300, the mobile terminal may further include performing a connection to the DCD server through the WEB / WAP gateway.

In step S306, when the DCD server receives the subscription request message for the additional service from the mobile terminal in step S302, the DCD server transmits the additional service subscription processing request message for the additional service to the U-Key, and U An additional service subscription step (S 307) of receiving an additional service subscription processing response message from the key may be further included.

The program ID information in the above information collecting step is information necessary for the mobile terminal to request the service details of the specific channel to the SMD center, and is transmitted from the SMD center to the mobile terminal through the OTA (S 318 and S). 320).

The service details of the specific channel in the above information collecting step are information that the mobile terminal must store in order to actually receive the service for the specific channel, and the mobile terminal requests information collection including the program ID information described above. Information that is received by transmitting a message to the SMD center (S 322) (S 324), including the BAK and detailed program information that is necessary information for the mobile terminal to provide a service for a specific channel.

4 is a flowchart illustrating a BCMCS release method of a mobile terminal receiving content through interworking with a DCD system and a BCMCS system according to an exemplary embodiment of the present invention.

According to the BCMCS subscription method described above with reference to FIG. 3, FIG. 4 is a flowchart illustrating a method for canceling BCMCS by a mobile terminal receiving content through BCMCS subscription. That is, FIG. 4 is a flowchart illustrating a method for canceling BCMCS by a mobile terminal subscribed to BCMCS to receive content through a BCMCS and DCD interworking system and receiving a dynamic content delivery service (DCD service).

Referring to FIG. 4, in the BCMCS cancellation method for a mobile terminal receiving content through interworking with the DCD system and the BCMCS system, a service cancellation request for a specific channel from a mobile terminal of a subscriber for a specific channel including the content is performed by the DCD server. Receiving a message (S 402), the service cancellation request step of deleting the stored subscriber information when the service subscription for a particular channel (S 404), DCD server terminates the service for a specific channel of the mobile terminal to the U-Key via UAPS By transmitting the information, the additional service that was previously subscribed when the service is subscribed to the specific channel by the U-Key is terminated (S406), and the DCD server transmits a service termination confirmation message for the service to the mobile terminal (S408). Service termination confirmation step, the SMD center receives the service termination subscriber information for the service from the DCD server (S 410), the subscriber's movement In the BCMCS termination step of canceling the terminal at the BCMCS terminal, the SMD center transmits service termination information to the mobile terminal via the OTA (S 412, S 414), thereby deleting the BAK previously stored at the BCMCS subscription (S 416). Information deletion step is performed.

Before the above-described step S402, the mobile terminal further includes the step of performing a connection (S400) to the DCD server through the WEB / WAP gateway.

5 is a diagram illustrating a DCD / BCMCS interworking system for transmitting content to a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 5, a DCD / BCMC interworking system 500 for providing a dynamic content delivery (DCD) service to a mobile terminal through a BCMCS system includes a UAPS 530, a U-Key 540, and an SMD center 550. , The AC 560, the OTA 570, the DCD server 520, and the like, and further include the WEB / WAP GW 510, and the contents are provided through the network 580. Is sent to the service area where it is located. The above-mentioned service area may be a cell or a sector in a mobile communication network.

UAPS (User Agent Profile Server) 530 is a server that manages the subscriber's mobile terminal, and performs a function of checking whether the user's mobile terminal supports the service desired by the user.

The UAPS 530 for BCMCS subscription of a mobile terminal according to the present invention performs a function of checking whether a plurality of mobile terminals subscribed to a service are terminals capable of receiving a service on a specific channel.

The U-Key 540 is a system that performs subscription processing of a subscriber's services and additional services, and performs a function of managing which services or additional services the subscriber subscribes to, and subscribes to the BCMCS of the mobile terminal according to the present invention. The U-Key 540 for receiving the additional service subscription request message from the plurality of mobile terminals from the DCD server and performs the additional service subscription process.

The scheduled multimedia download (SMD) center 550 functions as a center for the BCMCS system, and the SMD center 550 for the BCMCS subscription of the mobile terminal according to the present invention includes a plurality of DCD servers 520 from the DCD server 520. Receives and stores subscriber information for subscribers, manages BCMCS registration for multiple subscribers, stores RK, which is authentication related information for multiple subscribers, and receives a plurality of mobile terminals from the service for a specific channel. This function stores and manages program ID information and specific channel service detailed information necessary for the purpose.

Authentication Center (AC) 560 performs authentication management function for a subscriber using BCMCS, and AC 560 for BCMCS subscription of a mobile terminal according to the present invention relates to authentication of a plurality of subscribers for a service of a specific channel. A request for generating RK, which is information, is received from the SMD center, and the generated RK is transmitted to the SMD center.

OTA (Over-The-Air) 520 performs a function for transmitting a message (SMS) containing a specific command between devices in the DCD / BCMCS interworking system or between the device and the mobile terminal, the BCMCS of the mobile terminal according to the present invention The OTA 520 for subscription performs an SMS transmission function for transmission of program ID information from a SMD center to a plurality of mobile terminals.

The DCD server 520 is a server that performs a DCD service by interworking with a DCD client in a mobile terminal. The DCD server 520 receives a content from a DCD CP storing the content and transmits the content to the DCD client in the mobile terminal, whereby the content is in the idle screen of the mobile terminal. Or a server to be displayed on the screen display.

In addition, the DCD server 520 is a server connected to a plurality of mobile terminals to subscribe to the BCMCS of the mobile terminal, and receives and stores the same content from the DCD CP, and transmits the same content to the plurality of mobile terminals, a plurality of mobile The mobile station receives a subscription request for a service of a specific channel from a terminal and stores subscriber information of a plurality of subscribers subscribed to the service for a specific channel.

The DCD / BCMCS interworking system 500 further includes a WEB / WAP gateway 510 for accessing the DCD server from the plurality of mobile terminals.

Referring to 5, the above-described DCD / BCMCS interworking system 500 provides a dynamic content transmission service to the mobile terminal (3, 4, 5) of the BCMCS subscriber located in the cell B (600).

In addition, the network 580 may be a mobile communication network such as a CDMA 1x network, an EVDO network, a WCDMA network, an HSDPA network, a HSUPA network, a Wibro network, a wireless network such as a WiFi network, a wired Internet, and a broadcast. It may be configured in at least one form of the network of the scheme, it may be configured to include the above-described DCD / BCMCS interworking system 500.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

As described above, the present invention is applied to the field of dynamic content delivery (DCD) service, by interworking the DCD system and the BCMCS system, by providing a BCMCS subscription method for subscribing each user's mobile terminal to the BCMCS, a plurality of mobile terminals It is possible to transmit the same content at the same time, reducing the load on the DCD server or DCD CP transmitting the content, and improves the transmission efficiency of the bandwidth-limited network, and the mobile terminal subscribed to the BCMCS is the BCMCS system When the content transmission is not necessary by interworking with the DCD system, the BCMCS release method of the mobile terminal is provided, and thus, the present invention has a very useful invention that can satisfy the changed demand for the content transmission service method of the mobile terminal user.

1 is a diagram illustrating a dynamic content delivery (DDC) system;

2 is a diagram illustrating a BroadCast MultiCast Service (BCMCS) system;

3 is a flowchart illustrating a BCMCS subscription method of a mobile terminal for receiving content through interworking with a DCD system and a BCMCS system according to an embodiment of the present invention;

4 is a flowchart illustrating a method for canceling BCMCS of a mobile terminal receiving content through interworking with a DCM system and a BCMCS system according to an embodiment of the present invention;

5 is a diagram illustrating a DCD / BCMCS interworking system for transmitting content to a mobile terminal according to an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

500: DCD / BCMCS interworking system 510: WEB / WAP gateway

520: DCD server 530: UAPS

540: U-Key 550: SMD Center

560: AC 570: OTA

580: network

Claims (9)

In the BCMCS subscription method for the mobile terminal for receiving content through the DCD system and the BCMCS system in a total system including a mobile terminal, a DCD system including a DCD server, and a BCMCS system, (a) a service subscription request step of receiving, by the DCD server, a service subscription request message for a specific channel including the content from the mobile terminal, and storing subscriber information using the user of the mobile terminal as a subscriber; (b) a service subscription confirmation step of the DCD server confirming whether service support for the specific channel of the mobile terminal is possible through UAPS, and transmitting a service subscription confirmation message to the mobile terminal; (c) a BCMCS registration step in which a SMD center registers the mobile terminal of the subscriber with a BCMCS terminal by receiving the subscriber information previously stored in the step (a) from the DCD server and registering the subscriber; (d) subscriber authentication step of requesting generation of authentication related information (hereinafter referred to as RK) for the subscriber from the SMD center to AC, and receiving and storing the generated RK; And (e) an information collecting step of transmitting, by the SMD center, program ID information and service details of a specific channel to the mobile terminal; BCMCS subscription method for providing a content transmission service to the mobile terminal through the DCD system and the BCMCS system interworking, comprising a. The method of claim 1, In step (b), When the DCD server receives the subscription request message for the additional service from the mobile terminal in step (a), the DCD server performs a subscription processing system (hereinafter referred to as U-Key) for the additional service for the additional service. The method further comprises: an additional service subscription step of transmitting a subscription processing request message and receiving an additional service subscription processing response message from the U-Key. How to join BCMCS to provide. The method of claim 1, The program ID information in the step (e), The mobile terminal is information required for requesting the service detailed information on the specific channel to the SMD center, and is transmitted from the SMD center to the mobile terminal through an OTA. BCMCS subscription method for providing a content delivery service to a mobile terminal. The method of claim 1, The service details of the specific channel in the step (e), As the information that the mobile terminal actually needs to store in order to receive the service for the specific channel, the mobile terminal transmits the information collection request message including the program ID information to the SMD center. BCMCS for providing a content transmission service to a mobile terminal through interworking with the DCD system and the BCMCS system, characterized in that the mobile terminal includes information (BAK) and detailed program detailed information necessary for receiving the service for the specific channel. How to join. The method of claim 1, Before step (a), The mobile terminal further comprises the step of performing a connection to the DCD server through the WEB / WAP gateway BCMCS subscription method for providing a content transmission service to the mobile terminal through the interworking of the DCD system and the BCMCS system. In the BCMCS canceling method for the mobile terminal, the DCD system including the DCD server, and the entire system including the BCMCS system, the content is transmitted through the interworking of the DCD system and the BCMCS system, (a) a service in which the DCD server receives a service cancellation request message for the specific channel from the subscriber's mobile terminal for the specific channel including the content and deletes the subscriber information previously stored when subscribing for the specific channel; Termination request step; (b) the DCD server transmits service cancellation information for the specific channel of the mobile terminal to a subscription processing performing system (hereinafter referred to as U-Key) through UAPS, and thus for the specific channel by the U-Key; A service termination confirmation step of terminating a supplementary service previously subscribed when the service is subscribed, and transmitting a service termination confirmation message for the service to the mobile terminal by the DCD server; (c) a BCMCS termination step of receiving, by the SMD center, service termination subscriber information for the service from the DCD server, and terminating the mobile terminal of the subscriber at a BCMCS terminal; And (d) The SMD center transmits the service termination information to the mobile terminal via an OTA, thereby deleting the " information (BAK) necessary for receiving the service for a specific channel " Steps to delete information BCMCS cancellation method of a mobile terminal that was provided with a content transmission service through the interworking of the DCD system and the BCMCS system comprising a. The method of claim 6, Before step (a), And the mobile terminal performs a connection to the DCD server through a WEB / WAP gateway, and the BCMCS release method of the mobile terminal which has been provided with a content transmission service through interworking with the DCD system and the BCMCS system. In a DCD / BCMCS interworking system for simultaneously transmitting the same content to the plurality of mobile terminals in a plurality of mobile terminals, a DCD system including a DCD server, and a total system including a BCMCS system, (a) a server to which the plurality of mobile terminals access, stores the same content, transmits the same content to the plurality of mobile terminals, and transmits a subscription request for a service of a specific channel from the plurality of mobile terminals; A DCD server configured to receive and store subscriber information of a plurality of subscribers subscribed to the service for the specific channel; (b) a UAPS for checking whether the plurality of mobile terminals subscribed to the service is a terminal capable of receiving the service on the specific channel; (c) a subscription processing performing system (U-KEY) for receiving the request message for subscription of additional services from the plurality of mobile terminals from the DCD server to perform the additional service subscription processing; (d) receive and store subscriber information about the plurality of subscribers from the DCD server, manage BCMCS registration for the plurality of subscribers, and store authentication related information (hereinafter referred to as RK) for the plurality of subscribers; And a SMD center configured to store and manage program ID information and specific channel service detailed information necessary for the plurality of mobile terminals to receive the service for the specific channel; (e) an AC performing a function of receiving a request for generation of the RK, which is authentication related information of the plurality of subscribers, for the service of the specific channel from the SMD center and transmitting the generated RK to the SMD center; ; And (f) an OTA performing an SMS transmission function for transmitting the program ID information from the SMD center to the plurality of mobile terminals. DCD / BCMCS interworking system for simultaneously transmitting the same content to a plurality of mobile terminals, characterized in that it comprises a. The method of claim 8, The DCD / BCMCS interworking system, And a WEB / WAP gateway for accessing the DCD server from the plurality of mobile terminals, wherein the same content is simultaneously transmitted to the plurality of mobile terminals.

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