KR101040312B1 - A system and method for providing a hybrids IP-TV service - Google Patents

Abstract

Hybrid IP-TV service providing system according to the present invention comprises one or more set-top boxes for controlling the reception of content for IP-TV service; A channel server providing a real-time service of the content; A Video on Demand (VOD) server that provides an on-demand service of the contents; A tracker server that receives a request signal of the content from any one of the set top boxes and detects a location information list of the channel server, the VoD server and the set top boxes where the requested content exists. ; And a relay server which receives the list of the detected location information from the tracker server and determines an optimal path for transmission of the content among the channel server, the VoD server, and the set-top boxes. According to the determined optimal path, by transmitting the requested content to the set-top box requesting the content, efficient distribution processing of the Internet network and P2P IP-TV providing a stable service as in the existing IP-TV service By selectively applying the wireless Ad-hoc network using the function, it is possible to provide efficient and stable IP-TV service.

Description

A system and method for providing a hybrids IP-TV service

The present invention relates to providing an IP-TV service, and more particularly, a method of providing a stable service using the Internet for providing an IP-TV service and a method of performing an efficient distributed processing function using an Ad-hoc network. The present invention relates to a hybrid IP-TV service providing system and a method for applying the same.

IP (Internet Protocol) -TV is defined as a multimedia service such as television, video, audio, document, graphics, and data services provided through an IP network that guarantees quality, security, and reliability. It includes live TV service and stored video service such as VOD which is transmitted by unicasting.

Internet Protocol (IP) -TV services may be provided in a peer-to-peer network (P2P). Peer-to-peer networks or peer-to-peer networks are networks that depend on the computation and bandwidth capabilities of machines participating in the network rather than focusing on relatively few servers. P2P networks are generally used when nodes are connected to each other by large ad hoc. These networks are useful in many ways, and sharing of any digital format file such as audio, video, or data is very common. P2P IP-TV is a method of constructing such a network and providing IP-TV service. In general, two servers are involved, a tracker server having information on nodes participating in a service and a channel server providing a broadcast channel. The node connecting to the broadcast channel first connects to the tracker server to receive the location of the data. If it is the first node to access the broadcast channel, it tells it to receive data directly from the channel server. Then, a part of the broadcast is stored in the storage device of the node. When a new node wants to access the same channel, the tracker server will tell you the IP addresses of the nodes that it previously connected to. Then, the data is directly received from the nodes of the corresponding IP address and reproduced.

IP-TV is being serviced through a wired network capable of high capacity bandwidth. Routers or other devices that can handle large amounts of data are required, and infrastructure investments must be made because large amounts of redundant data are transmitted through the public network. In addition, due to the nature of broadcasting, when a certain time or event occurs, the number of users explodes, and in order to handle explosive traffic, resources must be prepared more than the traffic, so that service can be performed properly. . So service providers have to waste a lot of resources. That's why P2P IP-TV has emerged. In the traditional way, the server has all the data, and every time a user requests all the information, the set-top boxes have pieces of data and the pieces of data from the surrounding set-top boxes, unlike the way the server sends them. It is a method of playing the content by receiving it. Even if the user suddenly increases, the nodes holding the data also increase, so there is no need for additional resources.

However, even in such a P2P IP-TV service method, when there are a small number of users or requests for unpopular data, a considerable delay time is required, and sometimes normal reproduction may not be possible, which may cause a problem in the service. In addition, P2P IP-TV that is currently commercialized is provided in the form of PC applications, and most of them are used free of charge, and thus there is a problem of being vulnerable to copyright protection or security.

The technical problem to be solved by the present invention is to efficiently and effectively apply the Internet network providing a stable service as in the existing IP-TV service and the wireless Ad-hoc network using the efficient distributed processing function of P2P IP-TV, In addition, the present invention provides a hybrid IP-TV service providing system and method for providing a stable IP-TV service.

In order to achieve the above object, the hybrid IP-TV service providing system according to the present invention comprises one or more set-top boxes for controlling the reception of content for IP-TV service; A channel server providing a real-time service of the content; A Video on Demand (VOD) server that provides an on-demand service of the contents; A tracker server that receives a request signal of the content from any one of the set top boxes and detects a location information list of the channel server, the VoD server and the set top boxes where the requested content exists. ; And a relay server which receives the list of the detected location information from the tracker server and determines an optimal path for transmission of the content among the channel server, the VoD server, and the set-top boxes. According to the determined optimal path, characterized in that for transmitting the requested content to the set-top box requesting the content.

In order to achieve the above object, the hybrid IP-TV service providing method according to the present invention, when receiving a request signal of the content, a channel server for providing a real-time service, a VoD (Video on Demand) server for providing on-demand service and a set-top box Detecting a location list of information regarding the location of the requested content; Determining an optimal path for transmission of the content among the channel server, the VoD server, and the set-top boxes by referring to the detected location information list; And transmitting the requested content to the set top box that requested the content according to the determined optimal path.

According to the present invention, the content that the user wants to provide a service can be provided in the Ad-hoc network if it exists in the Ad-hoc network, and if such content is not present in the Ad-hoc network, the content is It can be provided from existing channel server or Video on Demand (VoD) server, so that IP-TV service can be provided efficiently. Accordingly, the IP-TV service can be stably provided to the user, and the traffic load that can occur on the network for providing the IP-TV service can be minimized.

Hereinafter, a hybrid IP-TV service providing system according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of an embodiment for explaining a hybrid IP-TV service providing system according to the present invention, a broadcasting station 100 providing content, an Internet 200 forming a network for providing an IP-TV service, and A plurality of set top boxes 1, 2, 3, ..., N (300, 310, 320, ..., 350).

The broadcasting station 100 includes a channel server 110 for providing a real-time service, a VoD server 120 for a Video on Demand (VoD) service, and a tracker server 130 for managing location information of pieces of content. It includes a relay server 140 for searching the optimal path of the content, the authentication server 150 for data management of IP-TV service subscribers and free / free service.

Channel server 110 is a server that provides a real-time service for the content requested by the user. The channel server 110 provides a service through an over-the-air broadcast channel or a cable broadcast channel, and provides a real-time IP-TV service through the Internet 200.

VoD server 120 is a server that provides on-demand service for the content requested by the user. To this end, the user stores the content requested by the user in a predetermined database, and when the user requests the IP-TV of the requested content, The server that provides the service.

When the tracker server 130 receives a request signal for content from one of the set top boxes, the channel server 110, the VoD server 120, and the set top boxes 300, 310, 320, ..., The location information list for the place where the requested content exists in 350 is detected and the detected result is output to the relay server 140. Here, the location information list refers to an address on a network of the channel server 110, the VoD server 120, and the set top boxes 300, 310, 320,..., 350 having content.

The relay server 140 receives a list of the location information detected from the tracker server 130, and the channel server 110, the VoD server 120, and the set top boxes 300, 310, 320,..., 350. Determine the optimal path for the transmission of content.

When the list of location information is received from the tracker server 130, the relay server 140 requests authentication of the user who requested the content service to the authentication server 150.

According to the authentication request of the relay server 140, the authentication server 150 checks whether the user who requested the content is a user who has permission to use the channel server 110 or the VoD server 120, and checks the result of the relay server. Output to 140. The authentication process first checks whether the user is a valid user who can receive the IP-TV service, and if it is determined that the user is a valid user, whether the user has the authority to use the content provided by the channel server 110 or not, the VoD server 120 Check that you have permission to use the content provided by). The authentication server 150 functions to protect content copyright, hack or set-up a virus on a set-top box, and authenticate a user for a paid service.

Upon receiving the authentication permission result from the authentication server 150, the relay server 140 searches for the optimal path. 2 is a block diagram illustrating an example of the relay server 140 illustrated in FIG. 1, and includes a content analyzer 142 and a path determiner 144.

The content analyzer 142 examines whether the content requested by the user is content provided by the channel server 110 or content provided by the VoD server 120, and outputs the result to the path determiner 144. That is, the content analyzer 142 examines whether the content requested by the user is content provided in real time through the channel server 110 or whether the content is stored in the VoD server 120.

The path determiner 144 determines an optimal path for transmitting the content requested by the user according to the analysis result of the content analyzer 142.

Upon receiving the analysis result of the content analyzer 142 that the requested content is the content provided by the channel server 110, the route determiner 144 determines the requested content in the ad-hoc network including the set-top box that requested the content. It is determined whether there is a set-top box that is provided with the same content service.

Ad-hoc network is an autonomous network in which nodes that can communicate wirelessly are dispersed without an access point (AP). In this structure, since there is no node controlling in the middle, each node should communicate in the network by making the most of the information it can have, and communicate with other nodes through the communication with distant nodes. Accordingly, there is a need for routing to find a path that minimizes communication costs (hop count, power, etc.). Since the ad hoc network forms a topology through communication between nodes, it can overcome the distance limitations of wireless network communication. Compared with the static router, the network topology changes dynamically because the nodes are free to move.

For example, assuming that set-top box 1 300 requests content in FIG. 1, the route determiner 144 is another set-top box 2 belonging to the ad-hoc network 250 including the set-top box 1 300. It is checked whether there is a set-top box which is being serviced for the same content as the content requested by the set-top box 1 (300) among the 3, ..N (310, 320, ..350). If the set-top box 2 310 belonging to the ad-hoc network 250 receives the same content as the content requested by the set-top box 1 300, the route determining unit 144 may determine the ad-hoc network 250. Set-top box 2 310 is determined as an optimal path for providing a service so that P2P IP-TV service can be performed within the service. However, if there is no set-top box provided with the same content as the content requested by the set-top box 1 300 in the ad-hoc network 250, the route determining unit 144 may provide stable IP-TV service. The set-top box 1 300 determines the channel server 110 having the requested content as the optimal path.

On the other hand, upon receiving the analysis result of the content analyzer 142 that the requested content is the content provided by the VoD server 120, the path determiner 144 requests the content in the Ad-hoc network including the set-top box that requested the content. It is determined whether there is a set-top box having pieces of fragmented content. Piece information refers to the partial information constituting the content, the piece information is gathered to form a complete content. This piece of information is scattered and stored in each set-top box provided with the service. This piece of information alone cannot reproduce the image, and the pieces are in order, so that only a certain number of pieces are arranged in order to allow normal reproduction. Assuming that set-top box 1 300 requests content in FIG. 1, the route determining unit 144 may include other set-top boxes 2, 3, and 3 that belong to the ad-hoc network 250 including the set-top box 1 300. It is checked whether there is a set-top box having fragment information of the content requested by the set-top box 1 (300) among the .N (310, 320, ..350). If the set-top box 3 320 belonging to the ad-hoc network 250 has fragment information of the content requested by the set-top box 1 300, the route determining unit 144 may determine whether the set-top box 3 320 is located within the ad-hoc network 250. Set-top box 3 320 is determined as an optimal path for providing fragment information so that P2P IP-TV service can be performed. However, if the set-top box having the remaining piece information of the content requested by the set-top box 1 (300) does not exist in the ad-hoc network 250, the path determiner 144 to receive the remaining piece information, The VoD server 120 having the remaining fragment information is determined as an optimal path for the remaining fragment information.

The relay server 140 transmits the result of the determined optimal path to the set top box requesting the content transmission.

When the optimal path is determined by the relay server 140, the content is transmitted to the set-top box that requested the content through the Internet 200 or the Ad-hoc network 250 according to the determined path. The relay server 140 transmits the group ID of the Ad-hoc network to each set-top box when determining the content transmission through the Ad-hoc network as the optimal path. Then, the set-top boxes receiving the group ID broadcast the group join message to the Ad-hoc network using the group ID. The set top boxes receiving the group join message transmit the contents in the reverse order.

Upon receiving content via the Internet 200 or Ad-hoc network 250, the set-top box controls the storage and playback of the received content.

FIG. 3 is a block diagram illustrating an embodiment of the set-top box shown in FIG. 1, and includes an interface unit 302, a controller 304, a content storage unit 306, and a content playback unit 308.

The interface unit 302 receives the content transmitted through the Internet 200 or the Ad-hoc network 250. In addition, the interface unit 302 is responsible for the interfacing function for data exchange with the broadcast station 100 or other set-top boxes.

The control unit 304 recognizes the path determined by the path determining unit 144 of the relay server 140, and according to the determined path, the control unit 304 may be configured from the channel server 110, the VoD server 120, or the set-top boxes in which the requested content exists. Control the reception of content and control the storage and playback of the received content. The controller 304 controls two communication modes, that is, a communication mode through the Internet or an Ad-hoc network. Other set-top boxes in the near field form ad-hoc networks using wireless communication, control routing services for ad-hoc networking, and selectively perform communication with broadcast stations over the Internet.

The content storage unit 306 stores the received content under the control of the controller 304. The content storage unit 306 is composed of a storage medium (eg, a hard disk) and the like, and information management of content is performed by a content fragment database (not shown). Writing to the database is the content unique ID and the sequence number of the fragment.

The content reproducing unit 308 reproduces the received content under the control of the control unit 304.

The controller 304 lists the received contents or pieces of content in order, and is responsible for providing data streaming so that the contents playback unit 308 can play them as quickly as possible. The controller 304 checks whether the pieces of content received through the Internet 200 or the Ad-hoc network 250 arrive within a delay time limit (for example, about 2 {sec]), and sequentially displays the operation information listed in order. Stream to content playback section 308. If the amount of content pieces that cannot be played back is not received until the delay time has passed, the controller 304 re-requests the content path from the relay server 140 to secure a stable content reception path.

4 is a reference diagram for explaining content transmission through an Ad-hoc network. If all the pieces of content are sent over the Internet to all set-top boxes in a unicast format (single destination), they can be sent reliably and reliably, but the use of servers and Internet networks has exploded, resulting in inefficiency. It becomes the broadcast system. In the wired / wireless hybrid IPTV broadcasting system, in order to reduce such explosive traffic, a multicast type (destination destination) is applied to an ad hoc network. 4 shows a transmission example when both wireless and wired networks operate. First, when the set-top box 1 makes a content request (1), the tracker server requests the relay server to search for an optimal transmission path (2). The relay server goes through an authentication step and checks the location of the content requested by the set-top box 1 to search for an optimal path. As a result, the set-top boxes 2 and 3 transmit content fragments in the Ad-hoc network, and the content fragments of the short portion are transmitted from the VoD server. The relay server transmits the group ID of the Ad-hoc network to the set-top boxes 1, 2, and 3 (3), and the set-top box 1 broadcasts the group join message to the ad-hoc network using the group ID (4). Within the ad-hoc network, other set-top boxes 4 and 5 propagate group join messages (5). When the set-top boxes 2 and 3 receive the group join message, they check with the group ID received from the relay server, and if there is no error, the content is sent in the opposite direction to the path where the group join message came (5). In this case, assuming that set-top box 3 receives the group join message a little earlier, it propagates to set-top box 2 like set-top boxes 4 and 5, but because set-top box 2 has already confirmed the same message from set-top box 4, Instead of transmitting the content to the set-top box 1 through the set-top box 3, the content piece is transmitted through the set-top box 4 (6). Set-top boxes 4 and 5 are set to send content pieces, and set-top box 1 sends content pieces. Since all the content fragments are not present in set-top boxes 2 and 3, the remaining content fragments cause the VoD server to send the set-top box 1 over the Internet.

5 is a reference diagram for describing content transmission according to a type of an optimal path.

Looking at the overall broadcast flow, the user initially selects the desired content using the remote control. Set-top box 1 is to request the tracker server of the broadcaster to the desired content. The tracker server checks the location of the pieces of content, creates a list, and sends the list to the relay server. The relay server checks the location of the set-top box requesting the broadcast and the content pieces of the list received from the relay server, searches for an optimal path, and processes the content pieces to be transmitted to the user's set-top box. The relay server checks whether the requested broadcast is a real-time broadcast channel or a VoD channel, and if it is a real-time broadcast channel, checks whether there is another set-top box watching the same channel in the ad-hoc network to which the set-top box belongs. In order to receive broadcasts in the hoc network, the group IDs that can join the multicast group are transmitted to the other set-top boxes receiving the broadcasts and the set-top boxes requesting the contents. If no other set-top box is receiving the same channel, control the channel server over the Internet to stream to the IP of the set-top box. If the requested broadcast type is a VoD channel, the location of the content fragments of the set top boxes in the ad-hoc network of the region is determined, and if present, the group ID is transmitted to the set top box requesting the broadcast and the set top boxes having the content fragments. By using the multicast transmission method, content fragments are transmitted, and if there are insufficient content fragments, the VoD server is controlled and transmitted directly to the IP of the set-top box. As shown in FIG. 5, since the set-top box 1 is a user who is initially connected to the channel server, the content is directly received from the channel server. At this time, the received content fragment is stored. If the set-top box 2 requests the same content, the relay server transmits the group ID to the set-top boxes 1 and 2 because the set-top box 1 has already received and stored the same content. Set-top box 2 sends a group join message to set-top box 1. When the set-top box 1 receives the group join message, the set top box 1 transmits the requested piece of content in the reverse order of the reception path of the received group join message. When the transmission of the content pieces starts, the set-top box lists the received content pieces to start playback, and the user watches the broadcast.

Hereinafter, a hybrid IP-TV service providing method according to the present invention will be described in detail with reference to the accompanying drawings.

6 is a flowchart of an embodiment for explaining a method for providing a hybrid IP-TV service according to the present invention.

Upon receiving the request signal of the content, a channel server providing a real-time service, a VoD (Video on Demand) server providing an on-demand service, and a location information list of a place where the requested content exists among the set-top boxes is detected. 400 steps). The location information list refers to an address on a network of channel servers, VoD servers, and set-top boxes having content.

After operation 400, an optimal path for transmission of content among the channel server, the VoD server, and the set-top box is determined by referring to the detected location information list (operation 402).

FIG. 7 is a flowchart of an exemplary embodiment for describing operation 402 illustrated in FIG. 6.

First, it is checked whether the user who requested the content is a user who has permission to use the channel server or the VoD server (operation 500).

If the user is authorized to use the service, it is checked whether the requested content is content provided by the channel server (step 502).

If the requested content is content provided by the channel server, it is examined whether there is a set-top box provided with the same content as the requested content in the Ad-hoc network including the set-top box requesting the content ( Step 504).

If there is a set-top box provided with the service for the same content in the Ad-hoc network, the optimal set path is determined as the set-top box provided with the service for the same content (step 608).

However, if there is no set-top box provided with the same content service in the Ad-hoc network, the channel server is determined as an optimal path (step 506).

On the other hand, in step 502, if the requested content is not content provided by the channel server, it is checked whether the content is provided by the VoD server (step 510).

If the requested content is content provided by the VoD server, it is examined whether there is a set-top box having fragment information of the requested content in the Ad-hoc network (step 512).

If there is a set-top box with operation information in the mile, Ad-hoc network, the set-top box having the piece information is determined as the optimal path for the piece information (step 514).

However, if there is no set-top box with the remaining operation information of the requested content in the Ad-hoc network, the VoD server determines the optimal path for the remaining piece information (step 516).

After operation 506, 508, 514, or 516, the result of the determined optimal path is transmitted to the set-top box requesting the content (operation 518). In addition, if authentication fails in operation 500 or if it is determined in step 510 that the content requested by the user does not exist, a message indicating that the path cannot be determined is transmitted to the set-top box.

After step 402, the requested content is transmitted to the set-top box that requested the content according to the determined optimal path (step 404).

FIG. 8 is a flowchart of an embodiment for describing operation 404 illustrated in FIG. 6.

In step 402, if the set-top box provided with the service for the same content is determined as the optimal path, the set-top box requesting the content and the service for the same content are requested for the multicast group ID for multicasting permission in the Ad-hoc network. The method transmits to the provided set-top box (step 600).

After operation 600, the set-top box provided with the service for the same content transmits the content to the set-top box that requested the content (operation 602).

On the other hand, if the channel server is determined to be the optimal path in step 402, the channel server requests the content (step 604).

After step 604, the flow proceeds to step 602, where the channel server transmits the content to the set-top box that requested the content.

On the other hand, in step 402, if the set-top box having fragment information is determined as the optimal path, the multicast group ID for allowing multicasting within the Ad-hoc network is transmitted to the set-top box requesting the content and the set-top box having the fragment information. (Step 606).

After operation 606, the flow proceeds to operation 602, in which the set-top box having the fragment information transmits the fragment information to the set-top box that requested the content.

On the other hand, if the VoD server is determined as the optimal path in step 402, the remaining piece information is requested to the VoD server (step 608).

After step 608, the process proceeds to step 602, where the VoD server transmits the remaining piece information to the set-top box that requested the content.

Meanwhile, the method inventions of the present invention described above can be implemented as computer readable codes / instructions / programs. For example, it may be implemented in a general-purpose digital computer for operating the code / instructions / program using a computer-readable recording medium. The computer-readable recording medium includes storage media such as magnetic storage media (eg, ROM, floppy disk, hard disk, magnetic tape, etc.), optical reading media (eg, CD-ROM, DVD, etc.) .

Such a hybrid IP-TV service providing system and method of the present invention has been described with reference to the embodiments shown in the drawings for clarity, but this is merely illustrative, and those skilled in the art can variously change and It will be appreciated that other equivalent embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the appended claims.

1 is a block diagram of an embodiment for explaining a hybrid IP-TV service providing system according to the present invention.

FIG. 2 is a block diagram illustrating an example of the relay server shown in FIG. 1.

3 is a block diagram illustrating an example of the set-top box shown in FIG. 1.

4 is a reference diagram for explaining content transmission through an Ad-hoc network.

5 is a reference diagram for describing content transmission according to a type of an optimal path.

6 is a flowchart of an embodiment for explaining a method for providing a hybrid IP-TV service according to the present invention.

FIG. 7 is a flowchart of an exemplary embodiment for describing operation 402 illustrated in FIG. 6.

FIG. 8 is a flowchart of an embodiment for describing operation 404 illustrated in FIG. 6.

Claims (18)

One or more set-top boxes that control content reception for IP-TV services; A channel server providing a real-time service of the content; A Video on Demand (VOD) server that provides an on-demand service of the contents; A tracker server that receives a request signal of the content from any one of the set top boxes and detects a location information list of the channel server, the VoD server and the set top boxes where the requested content exists. ; And A relay server which receives the list of the detected location information from the tracker server and determines an optimal path for transmission of the content among the channel server, the VoD server, and the set-top boxes, And transmitting the requested content to the set-top box that requested the content according to the optimal path determined by the relay server. The method of claim 1, wherein the relay server A content analyzer which examines whether the requested content is content provided by the channel server or content provided by the VoD server; And If the requested content is content provided by the channel server, it is determined whether there is a set-top box provided with the same content as the requested content in the Ad-hoc network including the set-top box requesting the content. And a path determiner configured to determine an optimal path for the transmission of the requested content. The method of claim 2, wherein the path determining unit If there is a set-top box provided with the service for the same content in the Ad-hoc network, a hybrid IP-TV service providing system for determining the set-top box provided with the service for the same content as the optimal path. . The method of claim 2, wherein the path determining unit And if there is no set-top box receiving the service for the same content in the ad-hoc network, determining the channel server in which the content exists as the optimal path. The method of claim 2, wherein the path determining unit If the requested content is content provided by the VoD server, it is checked whether a set-top box having fragment information of the requested content exists in the Ad-hoc network, and a set-top having the fragment information in the Ad-hoc network. And if the box exists, determining the set-top box having the piece information as the optimal path for the piece information. The method of claim 5, wherein the path determination unit If there is no set-top box having the remaining fragment information of the requested content in the Ad-hoc network, the hybrid IP-TV service providing system, characterized in that for determining the VoD server as the optimal path for the remaining fragment information. . The method of claim 1, And an authentication server for checking whether the user who requested the content is a user who has permission to use the channel server or the VoD server. Hybrid IP-TV service providing system, characterized in that the authentication server operates in response to a request of the relay server. The method of claim 2, wherein each of the set top boxes A controller for recognizing a path determined by the path determining unit and controlling reception of the requested content from the channel server, the VoD server, or set-top boxes in which the requested content exists according to the determined path; An interface unit for receiving the requested content; A content storage unit for storing the received content; And Hybrid IP-TV service providing system for reproducing the received content. Detecting a location information list of a channel server providing a real-time service, a Video on Demand (VOD) server providing an on-demand service, and a set-top box where the requested content exists when receiving a request signal of content; Determining an optimal path for transmission of the content among the channel server, the VoD server, and the set-top boxes by referring to the detected location information list; And And transmitting the requested content to the set-top box that requested the content according to the determined optimal path. 10. The method of claim 9, wherein determining the optimal path Checking whether the requested content is content provided by the channel server or content provided by the VoD server; If the requested content is content provided by the channel server, it is examined whether there is a set-top box provided with the same content as the requested content in the Ad-hoc network including the set-top box requesting the content. step; And if there is a set-top box provided with the service for the same content in the ad-hoc network, determining the set-top box provided with the service for the same content as the optimal route. How to provide TV service. The method of claim 10, wherein determining the optimal path If there is no set-top box provided with the same content service in the ad-hoc network, determining the channel server as the optimal path. The method of claim 10, wherein determining the optimal path If the requested content is content provided by the VoD server, examining whether there is a set-top box having fragment information of the requested content in the Ad-hoc network; And If there is a set-top box having the fragment information in the ad-hoc network, determining the set-top box having the fragment information as the optimal path for the fragment information. How to Provide. 13. The method of claim 12, wherein determining the optimal path And if there is no set-top box with the remaining fragment information of the requested content in the ad-hoc network, determining the VoD server as the optimal path for the remaining fragment information. -How to provide TV service. The method of claim 10, wherein determining the optimal path Checking whether the user who requested the content is a user who has permission to use the channel server or the VoD server; If the user is authorized to use the hybrid IP-TV service providing method, characterized in that for performing the determination of the optimal path. The method of claim 10, wherein the transmitting of the requested content to the set-top box that requested the content comprises: If the set-top box provided with the service for the same content is determined as the optimal path, the set-top box for requesting the content and the service for the same content are provided with a multicast group ID for allowing multicasting in the Ad-hoc network. Transmitting to a set-top box provided; And And transmitting, by the set-top box provided with the service for the same content, the requested content to the set-top box requesting the content. The method of claim 11, wherein transmitting the requested content to the set-top box that requested the content comprises: If the channel server determines the optimal path, requesting the content from the channel server; And And transmitting, by the channel server, the requested content to the set-top box requesting the content. The method of claim 12, wherein transmitting the requested content to the set-top box that requested the content comprises: If the set-top box having the fragment information is determined as the optimal path, transmitting a multicast group ID for allowing multicasting in the ad-hoc network to the set-top box requesting the content and the set-top box having the fragment information. ; And And transmitting, by the set-top box having the piece information, the piece information to the set-top box that requested the content. The method of claim 13, wherein the transmitting of the requested content to the set-top box that requested the content comprises: If the VoD server is determined to be the optimal path, requesting the remaining fragment information from the VoD server; And And transmitting, by the VoD server, the remaining fragment information to the set-top box requesting the content.

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