KR20100040233A - Method and apparatus for transmitting/receiving broadcasting data through peer-to-peer network - Google Patents

Abstract

PURPOSE: A method and an apparatus for transmitting and receiving broadcasting data through a peer-to-peer network are provided to make a peer transmit a plurality of contents through one channel. CONSTITUTION: A broadcasting information generator(610) generates information on a broadcasting channel. A broadcasting information transmission unit(620) transmits information on the broadcasting channel to a server of a peer-to-peer network. A broadcasting data transmission unit(630) transmits broadcasting data to peers of the peer-to-peer network according to the information on the broadcasting channel. The information on the broadcasting channel includes information on a list of a plurality of broadcasting contents through the broadcasting channel.

Description

Method and apparatus for transmitting / receiving broadcasting data through peer-to-peer network

The present invention relates to a method and apparatus for transmitting and receiving broadcast data, and more particularly, to a method and apparatus for a peer of a peer-to-peer network to transmit broadcast data to another peer.

With the development of IP (internet protocol) based wired and wireless networks, technologies for transmitting and receiving broadcast data through an IP network such as IPTV (internet protocol television) have been developed.

In particular, as a client connected to an IP network, such as an Internet personal broadcasting station, transmits broadcast data to other clients as a server, it is increasing interest in a method and apparatus for transmitting and receiving broadcast data by an individual.

Clients with limited hardware and network resources use a peer-to-peer network to smoothly send and receive broadcast data. Peer-to-peer network is an overlay network logically existing on an IP network. Nodes participating in a peer-to-peer network, that is, peers, are clients of each other as equivalent network entities without the concept of a client / server. It means a network that performs both server and server roles. Peers participating in the peer-to-peer network transmit their received data back to other peers in the peer-to-peer network, which is suitable for personal broadcasting because one peer does not have excessive load.

The present invention has been made in an effort to provide a method and apparatus for transmitting and receiving broadcast data through a peer-to-peer network, and to provide a computer-readable recording medium having recorded thereon a program for executing the method. .

According to an aspect of the present invention, a method for transmitting broadcast data through a peer-to-peer network by a peer includes: generating information about the broadcast channel; Transmitting information about the created broadcast channel to a server of the peer-to-peer network; And transmitting broadcast data to peers of the peer-to-peer network according to the transmitted broadcast channel information, wherein the broadcast channel information includes a plurality of broadcast content broadcasted through the broadcast channel. Contains information about the list.

According to a more preferred embodiment of the present invention, the information on the list of the plurality of broadcast content includes information on the broadcast schedule of the plurality of broadcast content.

According to a more preferred embodiment of the present invention, the broadcast schedule information is characterized in that the broadcast data transmission method comprising the metadata of the plurality of broadcast content.

According to a more preferred embodiment of the present invention, the metadata includes information on the representative image of the broadcast content and information on the length of the broadcast content.

According to a more preferred embodiment of the present invention, the information on the broadcast channel is information on the name of the broadcast channel, information on the type of broadcast, information on the broadcast start time and for the peer that created the broadcast channel. At least one of the information.

According to a preferred embodiment of the present invention, the broadcast data transmission method comprises the steps of: changing information on the broadcast channel during transmission of the broadcast data; Transmitting information about the changed broadcast channel to a server of the peer-to-peer network; And transmitting broadcast data to peers of the peer-to-peer network according to the information on the changed broadcast channel, wherein the server transmits information about the changed broadcast channel to the second peer. It is characterized by.

According to an aspect of the present invention, a method for receiving broadcast data through a peer-to-peer network by a first peer includes a broadcast channel of a second peer from a server of the peer-to-peer network. Receiving information about; And receiving broadcast data of the broadcast channel from peers of the peer-to-peer network according to the received broadcast channel information, wherein the broadcast channel information is broadcasted through the broadcast channel. It includes information about a list of a plurality of broadcast content.

According to a more preferred embodiment of the present invention, the method for receiving broadcast data includes receiving information on a broadcast channel changed during the reception of the broadcast data from the server; And receiving broadcast data of the broadcast channel from peers of the peer-to-peer network according to the information on the changed broadcast channel, wherein the information on the changed broadcast channel is determined by the first peer. It is characterized in that the information sent to the server.

According to a more preferred embodiment of the present invention, the step of receiving broadcast data comprises: reserving reception of broadcast data according to the information on the received broadcast channel; And receiving broadcast data according to the reservation.

According to an aspect of the present invention, there is provided a broadcast data transmission apparatus of a peer for transmitting broadcast data through a peer-to-peer network, including: a broadcast information generation unit generating information on the broadcast channel; A broadcast information transmitter for transmitting the information on the generated broadcast channel to a server of the peer-to-peer network; And a broadcast data transmission unit configured to transmit broadcast data to peers of the peer-to-peer network according to the information on the transmitted broadcast channel, wherein the information on the broadcast channel is broadcasted through the broadcast channel. Contains information about a list of broadcast content.

The broadcast data receiving apparatus of a first peer for receiving broadcast data through a peer-to-peer network according to an embodiment of the present invention for solving the technical problem is a second peer from a server of the peer-to-peer network. A broadcast information receiver for receiving information on a broadcast channel of the broadcast receiver; And a broadcast data receiver configured to receive broadcast data of the broadcast channel from peers of the peer-to-peer network according to the received broadcast channel information, wherein the broadcast channel information is received through the broadcast channel. It includes information about a list of a plurality of broadcast content to be broadcast.

In order to solve the above technical problem, an embodiment of the present invention provides a computer-readable recording medium having recorded thereon a program for executing the above-described broadcast data transmission method or broadcast data reception method.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 illustrates a broadcast data transmission and reception system through a peer-to-peer network according to an embodiment of the present invention.

Referring to FIG. 1, the first peer 110 is a peer that transmits broadcast data to other peers of the peer-to-peer network 120, and the second peer 140 is a broadcast of the first peer 110. A peer that receives data through peer-to-peer network 120. In the following, the peers of a peer-to-peer network may be consumer electronics (CE).

In a broadcast through a peer-to-peer network according to the prior art, the first peer 110 creates a broadcast channel and unilaterally transmits broadcast data to other peers, and does not inform other peers of the information about the broadcast channel. Other peers receiving the broadcast data did not know what broadcast data the first peer 110 transmitted.

However, the first peer 110 according to an embodiment of the present invention provides the server 130 with information about the broadcast channel of the first peer 110, and the server 130 peers with the information about the broadcast channel. Peers receiving broadcast data may first check the information on the broadcast channel and receive the broadcast data because it transmits to other peers of the to-peer network 120.

In other words, the first peer 110 notifies the server 130 of the list of at least one content broadcast through its broadcast channel, and the second peer 140 indicates that the first peer 110 is connected to the server 130. After checking the list of at least one content provided to the, the broadcast data of the first peer 110 may be selectively received. This will be described in detail with reference to FIG. 2.

2 is a flowchart illustrating a broadcast data transmission and reception method according to an embodiment of the present invention.

Referring to FIG. 2, in operation 210, the first peer 110 generates information about a broadcast channel of the first peer 110. The information about the broadcast channel may include information for identifying a broadcast channel of the first peer 110 and information about a list of content broadcast through the broadcast channel. This will be described in detail with reference to FIG. 3A.

3A illustrates a user interface 300 including information about a broadcast channel according to an embodiment of the present invention.

Referring to FIG. 3A, the information 310 for identifying a broadcast channel includes at least one of information on a name of a broadcast channel, information on a broadcast genre, information on a broadcast start time, and information on a broadcaster that generated the broadcast channel. It may include one.

According to an embodiment of the present invention, the server 130 manages information on all broadcast channels of the peer-to-peer network. Therefore, information about a channel name for identifying the broadcast channel of the first peer 110 from the broadcast channels of other peers is included in the information about the broadcast channel of the first peer 110.

In addition, the information on the broadcast channel includes a list 320 of at least one content broadcasted through the broadcast channel of the first peer 110. According to an embodiment of the present invention, the first peer 110 may provide a plurality of contents through one broadcast channel, and the peers receiving the broadcast data attempt to view and view information on the plurality of contents. Content can be selectively received at a predetermined broadcast time.

Accordingly, the first peer 110 transmits information about the list of the plurality of contents to the server 130. Rather than simply transmitting information on a list of a plurality of contents, a schedule in which a plurality of contents are broadcast may be arranged and transmitted to the server 130 according to time slots as illustrated in FIG. 3B.

The information on the list of the plurality of content may include metadata of each content. Information about a content name, a length of content, etc. of each of the plurality of contents is included in the metadata. In addition, the metadata may include information about the representative image of each content for more intuitively delivering the information about the content to the peer. A representative image of each content is included in the metadata so that a peer receiving the broadcast data can display the plurality of contents in the form of a thumbnail.

Referring back to FIG. 2, in step 220, the first peer 110 transmits information about a broadcast channel of the first peer 110 generated in step 210 to the server 130. As described above, the server 130 is a server 130 that manages information on all broadcast channels of the peer-to-peer network.

4 illustrates an eXtensible Markup Language (XML) document including information on a broadcast channel according to an embodiment of the present invention.

Referring to FIG. 4, in operation 220, information about a broadcast channel transmitted to the server 130 may be included in an XML document and transmitted. Referring to FIG. 4, the information transmitted to the server 130 as information about a broadcast channel includes information for identifying a broadcast channel and information about a list of content broadcast through the broadcast channel, as described above.

The information included in the "channel id", "title", "genre", "description", "publisher", "category", and "starttime" tags are information for identifying a broadcast channel, and included in the tag in "programList". The received information is information on a list of content broadcast through a broadcast channel.

"channel id" includes information about a channel identifier, "title" indicates information about a broadcast channel name, "genre" indicates information about the genre of content broadcasted through the broadcast channel, and "description" indicates the broadcast channel. In the detailed description, "publisher" includes information about a broadcaster, "category" includes information about a category to which a broadcast channel belongs, and "starttime" includes information about a broadcast start time.

The information on the list of content broadcast through the broadcast channel includes metadata of each content, and the metadata includes "title", "description", "duration", and "thumbnail" tags.

"title" includes information about the name of the content, "description" includes a detailed description related to the content, "duration" includes information about the length of the content, and "thumbnail" includes information about the representative image of the content.

In operation 230, the server 130 transmits information on the broadcast channel of the first peer 110, received from the first peer 110, to the second peer 140 in operation 220. The server 130 shares information about the broadcast channel of the first peer 110 with other peers of the peer-to-peer network. Upon receiving the information on the broadcast channel of the first peer 110 from the first peer 110, the information on the broadcast channel may be shared by broadcasting to other peers of the peer-to-peer network. In addition, information on the broadcast channel of the peer-to-peer network that periodically broadcasts to peers of the peer-to-peer network includes the information on the broadcast channel of the first peer 110 and broadcasts it together. Share information. This will be described in detail with reference to FIG. 3B.

3B illustrates a user interface 340 that includes information about broadcast channels of peer-to-peer network 120 in accordance with one embodiment of the present invention.

Referring to FIG. 3B, the server 130 provides information on at least one broadcast channel that a peer of the peer-to-peer network 120 can watch. As shown in the user interface 340 of FIG. 3B, at least one broadcast channel that a peer of the peer-to-peer network 120 can watch and information about a broadcast schedule of each broadcast channel is transmitted to the server 130. Provided by

Since the information on the broadcast time of the plurality of contents broadcast in each broadcast channel is provided to the second peer 140, the second peer 140 is at least one of the broadcast channels generated by the first peer 110 among them. The content of the can be selected and viewed. In addition, the viewing schedule of only the second peer 140 may be generated by combining the contents of the plurality of broadcast channels. For example, you can watch MOVIE # 1 from 10:00 to 11:00, DRAMA # 2 and DRAMA # 3 from 11:00 to 13:00, and select the content to reserve MUSIC # 3 from 13:00 to schedule viewing. can do.

In operation 240, the first peer 110 transmits broadcast data to peers of the peer-to-peer network according to the information on the broadcast channel transmitted to the server 130 in operation 220. Broadcast data of a plurality of contents is transmitted to peers at a predetermined time. The second peer 120 may receive broadcast data directly transmitted by the first peer 110 or may receive broadcast data retransmitted by peers of a peer-to-peer mesh network that receives the broadcast data. It may be.

The second peer 120 may also reserve the reception of the broadcast data according to the information on the broadcast channel as described above with reference to FIG. 3B, and receive the broadcast data according to the reservation. In other words, the second peer 120 may reserve in advance to receive broadcast data of content which has not yet started broadcasting so as to receive broadcast data at the same time that the broadcast starts.

A method of transmitting and receiving broadcast data based on information on a broadcast channel generated by the first peer 110 through steps 220 through 240 has been described. Hereinafter, steps 250 to 280 describe a method of transmitting and receiving broadcast data when information on a broadcast channel is changed after the start of the broadcast.

In operation 250, the first peer 110 changes the information on the broadcasting channel while transmitting the broadcasting data according to the information on the broadcasting channel generated in operation 220. The broadcast schedule is changed such as deleting or changing the broadcasted content or changing the broadcast order of the content. By adding new broadcast content to the broadcast schedule, it is assumed that the information on the broadcast channel is changed even if there is no change in the initial broadcast schedule. However, if the first peer 110 suddenly changes the broadcast schedule, the second peer 140 watching the broadcast may not be able to suddenly watch the content being viewed. Therefore, it is preferable to limit the broadcast schedule. This will be described in detail with reference to FIG. 5.

5 illustrates a change in a broadcast schedule according to an embodiment of the present invention.

Referring to FIG. 5, when the first peer 110 generates information on a broadcast channel in step 210, it is assumed that a broadcast schedule is generated as in the initial schedule of FIG. 5. According to the initial schedule, content # 1 510 is already transmitting broadcast data so that other peers in the peer-to-peer network are playing the content, and content # 2 520 is not playing the other peers, but the next play is performed. Is buffering.

The first peer 110 deletes all the content # 1 510, the content # 2 520, the content # 3 530, and the content # 4 540 from the broadcast schedule, and the content # 5 550, the content. When the broadcast schedule is changed by adding the # 6 560 and the content # 7 570 to the broadcast schedule, the content # 1 510 and the content # 2 520 that are already being played or buffered are not deleted. Accordingly, the changed broadcast schedule includes content # 1 510, content # 2 520, content # 5 550, content # 6 560, and content # 7 570 in that order.

According to another embodiment of the present invention, when attempting to delete a mode from content schedule # 1 510, content # 2 520, content # 3 530, and content # 4 540, the content is already played. Instead of deleting only the content # 1 510 that is being used in the broadcast schedule, the content # 2 520 that is buffering may be deleted.

Referring back to FIG. 2, when the information on the broadcast channel is changed as shown in FIG. 5 in step 250, the first peer 110 transmits the information on the changed broadcast channel to the server 130 in step 260. . As described above with reference to FIG. 4, information about the changed broadcast channel may be included in the XML document and transmitted to the server 130.

In operation 270, the server 130 transmits information on the changed broadcast channel received in operation 260 to the second peer 140. As described above with reference to step 230, upon receiving the information on the changed broadcast channel from the first peer 110, the information on the changed broadcast channel may be shared by broadcasting to other peers of the peer-to-peer network. . In addition, when periodically broadcasting the information on the broadcast channel of the peer-to-peer network, the information on the changed broadcast channel of the first peer 110 may be broadcast together.

In step 280, the first peer 110 transmits broadcast data to peers of the peer-to-peer network according to the information on the changed broadcast channel transmitted to the server 130 in step 260.

6 illustrates a peer for transmitting broadcast data according to an embodiment of the present invention.

6 illustrates the first peer 110 of FIG. 1 in more detail. Referring to FIG. 6, the first peer 110 according to an embodiment of the present invention includes a broadcast information generator 610, a broadcast information transmitter 620, and a broadcast data transmitter 630.

The broadcast information generator 610 generates information about a broadcast channel of the first peer 110. The information on the broadcast channel of the first peer 110 may include information for identifying a broadcast channel of the first peer 110 and information about a list of content broadcast through the broadcast channel.

In addition, the broadcast information generation unit 610 may generate information on the changed broadcast channel when the information on the broadcast channel is changed according to a user input during transmission of the broadcast data.

The broadcast information transmitter 620 transmits the information on the broadcast channel generated by the broadcast information generator 610 to the server 130 of the peer-to-peer network. As described above with reference to FIG. 4, information about a broadcast channel may be included in an XML document and transmitted to the server 130.

In addition, the broadcast information generator 620 transmits the information on the changed broadcast channel to the server 130 when the information on the changed broadcast channel is generated during the transmission of the broadcast data by the broadcast information generator 610.

The broadcast data transmitter 630 transmits broadcast data to peers of the peer-to-peer network according to the information on the broadcast channel of the first peer 110 generated by the broadcast information generator 610. Broadcast data of a plurality of contents is transmitted according to a broadcast schedule defined in information on a broadcast channel.

In addition, the broadcast data transmitter 630 transmits broadcast data according to the information on the changed broadcast channel when the information on the broadcast channel is changed during the transmission of the broadcast data.

7 illustrates a server managing a broadcast of a peer-to-peer network according to an embodiment of the present invention.

7 illustrates the server 130 of FIG. 1 in more detail. Referring to FIG. 7, the server 130 according to an embodiment of the present invention includes a broadcast information DB 710 and a broadcast information transmitter / receiver 720.

The broadcast information DB 710 stores information about a broadcast channel of a peer-to-peer network. As described above with reference to FIG. 2, information about all broadcast channels of a peer-to-peer network including a broadcast channel of the first peer 110 is received and stored from peers, and information about the received broadcast channel is stored. Share with other peers in the peer-to-peer network.

In addition, the broadcast information DB 710 may receive and store the broadcast information transmitter / receiver 720 from peers for information on peers connected to each broadcast channel. By collecting information on peers connected to a predetermined broadcast channel and sharing the collected information with peers connected to a predetermined broadcast channel as necessary, transmission and reception of broadcast data can be made smoother.

The broadcast information DB 710 may also receive and store information about peers from the peers via the broadcast information transport bride 720 in order to monitor all peers transmitting or receiving broadcast data in the peer-to-peer network. have. IP addresses of peers that transmit or receive broadcast data may be stored in the broadcast information DB 710 as information about peers.

The broadcast information transmitter / receiver 720 receives information on all broadcast channels of the peer-to-peer network and stores the information on all broadcast channels in the broadcast information DB 710. Information about the received broadcast channel is broadcasted to the peer-to-peer network for sharing with peers watching the broadcast.

If the information on the broadcast channel is changed after the broadcast of the predetermined broadcast channel is started, the information on the changed broadcast channel is received from the peer transmitting the broadcast data and retransmitted to the peer watching the broadcast.

In addition, the broadcast information transmitter / receiver 720 transmits or receives information on peers connected to each broadcast channel and / or broadcast data in a peer-to-peer network as described above with respect to the broadcast information DB 710. Receive information about all peers to be stored in the broadcast information DB (710).

8 illustrates a peer receiving broadcast data according to an embodiment of the present invention.

8 illustrates the second peer 140 of FIG. 1 in more detail. Referring to FIG. 8, the second peer 140 according to an embodiment of the present invention includes a broadcast information receiver 810 and a broadcast data receiver 820.

The broadcast information receiver 810 receives information about a broadcast channel of a peer-to-peer network from the server 130. The received information about the broadcast channel also includes information about the broadcast channel of the first peer 110. If the information on the broadcast channel is changed during the transmission of the broadcast data, the server 130 also receives the information about the changed broadcast channel.

The broadcast data receiver 820 receives broadcast data based on the information on the broadcast channel received by the broadcast information receiver 810. Receive broadcast data from peers of a peer-to-peer network. On the basis of the information on the broadcast channel received by the broadcast information receiver 810, the reception of broadcast data may be reserved before the start of the broadcast, and the broadcast data may be received according to the reservation. In addition, when information on a broadcast channel is changed during transmission of broadcast data, broadcast data is received according to the information on the changed broadcast channel.

According to the present invention, a peer for transmitting broadcast data can transmit a plurality of contents through one channel, so that a broadcast channel can be configured more consistently and efficiently. In addition, the peer receiving the broadcast data enables the broadcast viewing reservation and the dynamic configuration of the broadcast viewing through the information on the broadcast channel, thereby enabling a variety of broadcast viewing.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited to the above-described embodiments, which can be variously modified and modified by those skilled in the art to which the present invention pertains. Modifications are possible. Accordingly, the spirit of the invention should be understood only by the claims set forth below, and all equivalent or equivalent modifications will fall within the scope of the invention. In addition, the system according to the present invention can be embodied as computer readable codes on a computer readable recording medium.

For example, a server, a broadcast data transmission device, and a broadcast data reception device according to an exemplary embodiment of the present invention may include a bus coupled to respective units of the device as shown in FIGS. It may include at least one processor coupled to. It may also include a memory coupled to the bus for storing instructions, received messages or generated messages and coupled to at least one processor for performing instructions as described above.

The computer-readable recording medium also includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of the recording medium include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and also include a carrier wave (for example, transmission through the Internet). The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.

1 illustrates a broadcast data transmission and reception system through a peer-to-peer network according to an embodiment of the present invention.

2 is a flowchart illustrating a broadcast data transmission and reception method according to an embodiment of the present invention.

3A illustrates a user interface including information on a broadcast channel according to an embodiment of the present invention.

3B illustrates a user interface that includes information about broadcast channels of a peer-to-peer network, according to an embodiment of the invention.

4 illustrates an eXtensible Markup Language (XML) document including information on a broadcast channel according to an embodiment of the present invention.

5 illustrates a change in a broadcast schedule according to an embodiment of the present invention.

6 illustrates a peer for transmitting broadcast data according to an embodiment of the present invention.

7 illustrates a server managing a broadcast of a peer-to-peer network according to an embodiment of the present invention.

8 illustrates a peer receiving broadcast data according to an embodiment of the present invention.

Claims (23)

A method for a peer to transmit broadcast data via a peer-to-peer network, Generating information on the broadcast channel; Transmitting information about the created broadcast channel to a server of the peer-to-peer network; And Transmitting broadcast data to peers of the peer-to-peer network according to the information about the transmitted broadcast channel; And the information on the broadcast channel comprises information on a list of a plurality of broadcast content broadcasted through the broadcast channel. The method of claim 1, wherein the information on the list of the plurality of broadcast contents is Broadcast data transmission method comprising information on a broadcast schedule of the plurality of broadcast contents. The method of claim 2, wherein the information about the broadcast schedule Broadcast data transmission method comprising the metadata of the plurality of broadcast content. The method of claim 3, wherein the metadata is And information on the representative image of the broadcast content and the length of the broadcast content. The method of claim 1, wherein the information about the broadcast channel is And at least one of information on a name of the broadcast channel, information on a type of broadcast, information on a broadcast start time, and information on a peer that has created the broadcast channel. The method of claim 1, Changing information on the broadcast channel during transmission of the broadcast data; Transmitting information about the changed broadcast channel to a server of the peer-to-peer network; And Transmitting broadcast data to peers of the peer-to-peer network according to the information on the changed broadcast channel; And the server transmits the information on the changed broadcast channel to the second peer. A method for a first peer to receive broadcast data via a peer-to-peer network, the method comprising: Receiving information on a broadcast channel of a second peer from a server of the peer-to-peer network; And Receiving broadcast data of the broadcast channel from peers of the peer-to-peer network according to the information about the received broadcast channel, And the information on the broadcast channel includes information on a list of a plurality of broadcast content broadcasted through the broadcast channel. The method of claim 7, wherein the information on the list of the plurality of broadcast content is Broadcast data receiving method comprising the information on the broadcast schedule of the plurality of broadcast content. The method of claim 8, wherein the information about the broadcast schedule Broadcast data reception method comprising the metadata of the plurality of broadcast content. The method of claim 9, wherein the metadata is And information on the representative image of the broadcast content and the length of the broadcast content. The method of claim 7, wherein the information on the broadcast channel And at least one of information on a name of the broadcast channel, information on a type of broadcast, information on a broadcast start time, and information on a peer that has created the broadcast channel. The method of claim 7, wherein Receiving information on the changed broadcast channel from the server during the reception of the broadcast data; And Receiving broadcast data of the broadcast channel from peers of the peer-to-peer network according to the information on the changed broadcast channel, And the information on the changed broadcast channel is information transmitted by the first peer to the server. The method of claim 7, wherein receiving the broadcast data Reserving broadcast data according to the received broadcast channel information; And And receiving broadcast data according to the reservation. In the broadcast data transmission apparatus of a peer for transmitting broadcast data through a peer-to-peer network, A broadcast information generator for generating information on the broadcast channel; A broadcast information transmitter for transmitting the information on the generated broadcast channel to a server of the peer-to-peer network; And A broadcast data transmitter for transmitting broadcast data to peers of the peer-to-peer network according to the information on the transmitted broadcast channel; And the information on the broadcast channel includes information on a list of a plurality of broadcast content broadcasted through the broadcast channel. The method of claim 14, wherein the information on the list of the plurality of broadcast content is And a broadcast schedule of the plurality of broadcast contents. The method of claim 15, Information about the broadcast schedule Including information on metadata of the plurality of broadcast contents, The information about the metadata And a representative image of the broadcast content and information on the length of the broadcast content. The method of claim 14, The broadcast information generation unit changes the information on the broadcast channel during the transmission of the broadcast data, The broadcast information transmitter transmits the information on the changed broadcast channel to the server of the peer-to-peer network, The broadcast data transmitter transmits broadcast data to peers of the peer-to-peer network according to the information on the changed broadcast channel. And the server transmits the information on the changed broadcast channel to the second peer. An apparatus for receiving broadcast data of a first peer for receiving broadcast data via a peer-to-peer network, the apparatus comprising: A broadcast information receiver configured to receive information on a broadcast channel of a second peer from a server of the peer-to-peer network; And A broadcast data receiver configured to receive broadcast data of the broadcast channel from peers of the peer-to-peer network according to the received broadcast channel information; And the broadcast channel information includes information on a list of a plurality of broadcast content broadcasted through the broadcast channel. The method of claim 18, wherein the information on the list of the plurality of broadcast content is And a broadcast schedule of the plurality of broadcast contents. The method of claim 19, Information about the broadcast schedule Including information on metadata of the plurality of broadcast contents, The information about the metadata And a representative image of the broadcast content and information on the length of the broadcast content. The method of claim 18, The broadcast information receiver receives information on the broadcast channel changed during the reception of the broadcast data from the server, The broadcast data receiver receives broadcast data of the broadcast channel from peers of the peer-to-peer network according to the information about the changed broadcast channel. And the information on the changed broadcast channel is information transmitted by the first peer to the server. The broadcast data receiving unit according to claim 18, wherein the broadcast data receiving unit And receiving broadcast data according to the reservation, and receiving broadcast data according to the reservation. A computer-readable recording medium having recorded thereon a program for executing the method of any one of claims 1 to 11.

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