KR20070001678A - Method and apparatus for providing broadcasting by using content delivery network and system including thereof - Google Patents

Abstract

A method, a device, and a system for offering a broadcasting service using the CDN(Contents Delivery Network) are provided to offer a localized broadcasting service by efficiently offering broadcasting contents through the CDN. A local information managing module(310) receives and manages group information generated by grouping at least one broadcasting repeater installed to an area to provide the same broadcasting. A broadcasting content managing module(330) receives and manages the broadcasting contents which are differently set according to the group information. A subscriber module(350) authenticates a terminal and a subscribed personalized service for the terminal by receiving a broadcasting content request from the terminal included in the area. A communicating module(370) transmits the broadcasting contents which are differently provided according to an authentication result and subscription for the personalized service to the terminal through a broadcasting repeater.

Description

METHOD AND APPARATUS FOR PROVIDING BROADCASTING BY USING CONTENT DELIVERY NETWORK AND SYSTEM INCLUDING THEREOF}

1 illustrates a broadcast service providing system using a CDN according to an embodiment of the present invention.

2 illustrates a cell partitioned to provide a localized broadcast service according to an embodiment of the present invention.

3 is a block diagram illustrating an internal broadcast service providing apparatus according to an embodiment of the present invention.

4 is a flowchart illustrating a broadcast service providing method using a CDN according to an embodiment of the present invention.

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

100, 150: terminal

200: mobile communication network

220: BTS

240: dedicated line

300: broadcast service providing device (cache server)

400: broadcast relay device

500: satellite DMB broadcasting server

600: terrestrial DMB broadcasting server

700: administrator server

800: satellite

The present invention relates to a method and a system for providing a broadcast service, and more particularly, to a method and apparatus for providing a broadcast service using a CDN for providing differentiated local broadcasting using a mobile communication network, and a system thereof.

Digital multimedia broadcasting (DMB) service, which has recently emerged, is a broadcasting service mainly for mobile services. Satellite or terrestrial broadcasting service that can watch.

However, the existing broadcast has a problem that it cannot provide differentiated services to subscribers because the uniform broadcast content must be transmitted to a large area through satellite or terrestrial transmission equipment.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a broadcast service providing method and apparatus using a CDN for efficiently providing broadcast content using a CDN in providing a localized broadcast service, and a system thereof. To provide.

Broadcast service providing method using a CDN according to a first aspect of the present invention for achieving the above object,

In the cache server connected to the base station and the broadcast relay device of the mobile communication network in order to provide different broadcast content in the unit of time in the same time zone,

A) receiving group information generated by grouping at least one cache server installed in an area to provide the same broadcast;

B) receiving and storing broadcast content set differently according to the group information;

C) determining whether a user of the terminal is a subscriber registered to a personalization service as a message requesting to provide the broadcast content is received from a terminal belonging to the region; And

D) as a result of the determination of step C), if the subscriber is registered to the personalization service, applying the set personalization service to provide the broadcast content.

Broadcast service providing apparatus using a CDN according to a second aspect of the present invention for achieving the above object,

A local information management module configured to receive and manage group information generated by grouping at least one broadcast relay device installed in an area to provide the same broadcast;

A broadcast content management module configured to receive and manage broadcast content set differently according to the group information;

A subscriber module for receiving a request for the broadcast content from a terminal belonging to the region to determine whether the personalized service is authenticated and subscribed to the terminal; And

And a communication module for transmitting differently provided broadcast contents to the terminal through the broadcast relay device according to an authentication result of the terminal and whether to subscribe to the personalization service.

Broadcast service providing system using a CDN according to a third aspect of the present invention for achieving the above object,

A broadcast relay device connected to the satellite DMB broadcast server to receive satellite DMB broadcast content from a cache server;

A BTS for controlling the cache server using a mobile communication network and transmitting and receiving data to and from the terminal receiving the broadcast content and the cache server; And

The satellite DMB broadcasting contents according to the regional information set by an administrator is transmitted to the broadcasting relay device, and the broadcasting relay apparatus provides information for transmitting the broadcasting contents set at a time set to a terminal subscribed to a personalization service among the terminals. It includes a cache server.

Therefore, according to the present invention, it is possible not only to provide different broadcasting contents for each region, but also to receive broadcasting contents of a kind set at an individual time.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

FIG. 1 illustrates a broadcast service providing system using a CDN according to an embodiment of the present invention, and FIG. 2 illustrates a cell partitioned to provide a localized broadcast service according to an embodiment of the present invention.

1, a satellite DMB broadcast server 500 and a terrestrial DMB broadcast server 600 for generating and providing broadcast content, an satellite 800 for transmitting the broadcast content to terminals 100 and 150, A broadcast relay device 400 (hereinafter referred to as a gap filler), a broadcast service providing apparatus according to the present invention (hereinafter referred to as a cache server; 300), an administrator server 700 for providing a personalization service, It comprises a mobile communication network 200, a dedicated line 240, and the BTS (Base Station Transceiver Server) 220.

The satellite DMB broadcasting server 500 transmits the produced broadcast contents to the satellite 800 by transmitting the CDM signal and TDM signal of 13 to 14 GHz (Ku band band), so that the satellite 800 transmits the CDM signal to 2.6 GHz. The TDM signal is converted into an S band band signal and transmitted directly to the terminal 150. The TDM signal is converted into a Ku band band signal of 11 GHz to 12 GHz and transmitted to a gap filler, which is the broadcast relay device 400. .

The manager server 700 selects one of the cache server 300, the broadcast relay device 400, and the BTS 220 through the mobile communication network 200 in order to provide different broadcast contents on a local basis in the same time zone. Grouping is performed (see FIG. 2).

For example, when the grouping is to be performed based on the cache server 300 and the administrative unit, all cache servers 300 installed in each region of Seoul, Incheon, Gyeonggi-do, and Chungcheong-do, that is, the same cache servers installed in the Seoul region, are identical. Set the ID [Region_ID_Seoul] and set [Region_ID_Incheon] to all cache servers installed in Incheon.

In addition, the cache server 300 transmits a broadcast program to the gap filler 400 so that different broadcasting contents are provided for each of the grouped regions using the manager server 700.

The cache server 300 is connected to the gap filler 400 and the BTS 220 by a wired or wireless network, and provides the broadcast contents to the terminals 100 and 150 by using a contents delivery network (CDN) technology. do. The CDN technology is a content networking technology method for a local distributed service that is contrasted with the existing centralized content service method. The satellite DMB broadcasting server 500 generates and provides the broadcast content by the cache server 300, The broadcast content is requested to the terrestrial DMB broadcasting server 600 and the like, stored in a predetermined database, and then transmitted to the terminal through the gap filler 400.

Preferably, the cache server 300 requests broadcast contents from the satellite DMB broadcast server 500, the terrestrial DMB broadcast server 600, or the like periodically or when there is room in the capacity of the network. Store in

More preferably, the gap filler 400 includes a predetermined database (not shown) to store broadcast content received from the cache server 300.

The cache server 300 receives the broadcast content from the web server (not shown) for generating and providing broadcast content through the mobile communication network 200 and transmits the broadcast content to the terminals 100 and 150 through the gap filler 400. It is possible to do

The gap filler 400 is a gap filler for satellite DMB for receiving broadcast content from the satellite 800 and transmitted to the terminal, or for receiving broadcast content from the terrestrial DMB broadcast server 600 and transmitting the broadcast content to the terminal. Gap filler for terrestrial DMB.

The terminals 100 and 150 transmit and receive data by accessing a mobile communication network, and are a DMB terminal having a function of receiving the satellite DMB broadcast content or the terrestrial DMB broadcast content.

3 is a block diagram illustrating an internal broadcast service providing apparatus according to an embodiment of the present invention.

The broadcast service providing apparatus, that is, the cache server 300 according to the present invention includes a regional information management module 310, a broadcast content management module 330, a subscriber module 350, a communication module 370, and a database 390. It is configured by.

All regions that provide broadcast content are grouped by an administrator, and the cache server 300 belonging to the grouped region receives information about which region it belongs to from the manager server 700 through the mobile communication network 200. The information is stored and managed by the local information management module 310.

The broadcast content management module 330 receives a broadcast program to be broadcast according to the region information from the manager server 700 and receives broadcast content to be provided to the terminals 100 and 150 by the satellite DMB broadcast server 500 or the terrestrial DMB. Request and download to the broadcast server 600.

In addition, the cache server 300 may provide a personalization service to the terminals 100 and 150 by using the gap filler 400. The cache server 300 may be a user of the terminals 100 and 150. The subscriber module 350 stores and manages the broadcasting time registered according to the personalization service, the broadcasting time registered according to the personalization service, and the category information of the broadcast content to be provided at the broadcasting time.

Accordingly, the broadcast content management module 330 provides broadcast content for providing broadcast content necessary according to a personalization service through the satellite DMB broadcast server 500, the terrestrial DMB broadcast server 600, and a mobile communication network 200. The broadcast content is downloaded from the generation server (not shown) and stored in the database 390, and the broadcast content required for the registered broadcast time is read and transmitted to the terminals 100 and 150.

The communication module 370 transmits and receives data with the broadcast relay device 400 and the BTS 220 in a wired or wireless manner.

The operating state of the present invention configured as described above will be described.

4 is a flowchart illustrating a broadcast service providing method using a CDN according to an embodiment of the present invention.

In order to transmit the differentiated content to the terminal at the same time, the administrator divides the cache server 300 according to the region (S400).

Among the satellite DMB broadcasting server 500, the terrestrial DMB broadcasting server 600, and a web server (not shown), the cache server 300 receives regional information grouped by an administrator and transmits broadcast contents to be transmitted in the region. Received and stored from at least one server (S410, S420).

When a message requesting to provide broadcast content from a terminal is received by the cache server 300, the cache server 300 determines whether the terminal is registered in a personalization service (S430 and S440).

As a result of the determination in step S440, if the terminal is not registered in the personalization service, the broadcast content is transmitted to the gap filler 400 to read the broadcast content set according to the group information divided by the manager and provide it to the terminal. (S450, S470).

However, when the terminal is registered in the personalization service, the broadcast content according to the result of reviewing the broadcast time and the broadcast content set by the user of the terminal is read and transmitted to the terminal (S460).

In this case, when the terminal receiving the broadcasting content in the first region moves to the second region providing the other broadcasting contents, the cache server 300 provides the terminal with a guide message for changing the region and the terminal. The broadcast content provided in the region selected by the user is transmitted to the gap filler 400 installed in the selected region to be provided to the terminal.

In one application example, when the terminal receiving the broadcasting content in the first region moves to a second region providing other broadcasting contents, the cache server 300 provides a guidance message for changing the region to the terminal. If the terminal is a terminal registered in the personalization service, the terminal transmits the broadcast content corresponding to the category of the set broadcast content that is desired to be provided at the current time to the gap filler 400 installed in the second region. Be sure to

As described in detail above, according to the method and apparatus for providing a broadcast service using the CDN of the present invention and a system thereof, a broadcast service that is uniformly provided by a mobile communication network and a cache server is provided. In addition, when the user is registered in the personalization service, it is possible to provide broadcast content according to the needs or tastes of the users.

In addition, since the cache server downloads the broadcast content and stores it in a database when there is a transmission margin in the mobile communication network, it is possible to prevent the load on the network due to the download of the broadcast content.

Although the present invention has been described in detail with reference to preferred embodiments, the present invention is not limited to the above-described embodiments, and the technical field to which the present invention belongs without departing from the gist of the present invention as claimed in the following claims. Anyone skilled in the art will have the technical idea of the present invention to the extent that various modifications or changes are possible.

Claims (15)

In the cache server connected to the base station and the broadcast relay device of the mobile communication network in order to provide different broadcast content in the unit of time in the same time zone, A) receiving group information generated by grouping at least one cache server installed in an area to provide the same broadcast; B) receiving and storing broadcast content set differently according to the group information; C) determining whether a user of the terminal is a subscriber registered to a personalization service as a message requesting to provide the broadcast content is received from a terminal belonging to the region; And D) when the subscriber is registered in the personalization service as a result of the determination of step C), providing the broadcast content by applying the set personalization service. The method of claim 1, wherein step D) D-1) transmitting, by the cache server, broadcast content according to the group information to the broadcast relay device corresponding to the group information; And D-2) The broadcast relay device providing a broadcast service using a CDN, characterized in that it comprises the step of transmitting the broadcast content to the terminal. The method of claim 1 or 2, wherein the personalization service, A category of broadcast content is set by a user of the terminal, and a broadcast time to be provided to the terminal is set for each category. 4. The method of claim 3, wherein the terminal is a DMB terminal having a function of transmitting and receiving data by accessing the mobile communication network and receiving the broadcast content for satellite DMB. The method of claim 3, wherein the method is E) when the terminal receiving the broadcast content in the first area moves to a second area for providing other broadcast content, providing a guide message for changing the area to the terminal; And F) The broadcast service providing method using a CDN further comprising the step of providing to the terminal the broadcast content provided in the area selected by the user. The method of claim 3, wherein the method is X) when the terminal receiving the broadcast content in the first region moves to a second region that provides the other broadcast content, providing a guide message for the region change to the terminal; And Y) when the terminal is a terminal registered in a personalization service, the method further comprises the step of transmitting the broadcast content corresponding to the category of the set broadcast content that you want to receive at the current time to the terminal broadcasts using a CDN How we deliver the service. A local information management module configured to receive and manage group information generated by grouping at least one broadcast relay device installed in an area to provide the same broadcast; A broadcast content management module configured to receive and manage broadcast content set differently according to the group information; A subscriber module for receiving a request for the broadcast content from a terminal belonging to the region to determine whether the personalized service is authenticated and subscribed to the terminal; And And a communication module for transmitting the broadcast contents differently provided according to the authentication result of the terminal and whether to subscribe to the personalization service to the terminal through the broadcast relay device. Service provision device. The method of claim 7, wherein the broadcast content management module, And a broadcast content corresponding to the area information from among the satellite DMB broadcast contents provided from the satellite DMB broadcast server. The method of claim 7 or 8, wherein the device, And a broadcast content belonging to a category of broadcast content corresponding to a broadcast providing time set according to a personalization service subscribed to by the terminal stored in the subscriber module, to the terminal. The method of claim 9, wherein the device, BTS and a broadcast service providing apparatus using a CDN, characterized in that connected to the broadcast relay device via a wired or wireless network. A broadcast relay device connected to the satellite DMB broadcast server to receive satellite DMB broadcast content from a cache server; A BTS for controlling the cache server using a mobile communication network and transmitting and receiving data to and from the terminal receiving the broadcast content and the cache server; And The satellite DMB broadcasting contents according to the regional information set by an administrator is transmitted to the broadcasting relay device, and the broadcasting relay apparatus provides information for transmitting the broadcasting contents set at a time set to a terminal subscribed to a personalization service among the terminals. Broadcast service providing system using a CDN characterized in that it comprises a cache server (Cache Server). The apparatus of claim 11, wherein the broadcast relay device comprises: Broadcast service providing method system using a CDN, characterized in that the gap filler (Gap Filler) for satellite DMB. The method of claim 11, wherein the terminal, And a DMB terminal having a function of receiving and transmitting data by accessing a mobile communication network and receiving the broadcast contents for the satellite DMB. The method of claim 11, wherein the cache server, The broadcast service providing system using a CDN, characterized in that connected to the broadcast relay device and the BTS in a wired or wireless network. The method of claim 14, wherein the cache server, And a database for storing and managing the broadcast content for the satellite DMB and the broadcast content provided from the content providing server through the mobile communication network.

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