KR20120080851A - Method of providing a differential contents service according to level in a p2p network - Google Patents

Abstract

PURPOSE: A method for providing a content service by grade in a P2P(Peer to Peer) network are provided to supply a differentiated content service according to each grade of users, thereby satisfying both users who want a premium service and users who want a reasonable service. CONSTITUTION: Information about content is requested from a first peer(S700). The information of a plurality of second peers having the content is collected(S710). The collected information of the second peers is grouped by N groups(S720). Grouping information about the groups is transmitted to the first peer(S730). When the grouping is being operated, the number of groups is changed according to the grade of the first peer. The first peer is classified into a general grade and a premium grade.

Description

METHOD OF PROVIDING A DIFFERENTIAL CONTENTS SERVICE ACCORDING TO LEVEL IN A P2P NETWORK}

The present invention relates to a method for providing a differentiated content service for each user's rating in a P2P network.

Peer-to-peer (P2P) refers to a technology or service that allows users to share information by directly connecting the person looking for information with the person's PC without going through a server computer. Unlike conventional methods that require searching through P2P technology, users can receive information directly from all personal computers connected to the Internet, search and download.

In peer-to-peer networks, peers can either send or receive content. That is, the peers serve as servers for different peers, and the P2P network generally has a structure as shown in FIG. 1 below.

1 is a diagram illustrating a conventional P2P network.

Referring to FIG. 1, a user terminal 100 of a first peer who wants to receive content may receive content from servers 104, 106, and 108 of other peers.

Such a conventional P2P network system provided the same service to all users, that is, did not provide a differentiated service, and thus could not satisfy users who would like to receive more advanced service.

In order to solve the problems of the prior art as described above, the present invention is to provide a P2P network system for providing a differentiated service according to the user's level and a service providing method of a membership server in this.

Other objects of the present invention may be derived by those skilled in the art through the following examples.

According to a preferred embodiment of the present invention to achieve the above object, a content service providing method of a membership server used in a P2P network, the method comprising the steps of: requesting information about content from a first peer; Collecting information of a plurality of second peers having the content; Grouping the collected information of the second peers into groups of n-n is two or more natural numbers; And transmitting the grouping information for the n groups to the first peer, wherein the grouping comprises varying the number of groups according to the grade of the first peer. A method of providing a content service of a server is provided.

A method of providing a content service of a first peer used in a P2P network according to another embodiment of the present invention, the method comprising: requesting content information from a membership server; Receiving grouping information from the membership server according to the request, wherein the grouping information is generated by grouping information of a plurality of second peers owning the content according to the transmission period of the content, n being 2 Group information of the above natural numbers. Selecting at least one second peer from each of the groups included in the grouping information; A method for providing a service of a peer used in a peer-to-peer network, comprising requesting content from second peers selected in advance, wherein the number of groups varies according to the grade of the first peer that requested the content. do.

A method of providing a content service of a membership server used in a P2P network according to another embodiment of the present invention, the method comprising: collecting information on second peers having content according to content information requested from a first peer; Generating grouping information by grouping the second peers into n (natural numbers) groups; And transmitting the generated grouping information to the first peer, wherein the number of groups included in the grouping information is the same regardless of the rank of the first peer, but the first peer is an advanced grade. The service quality of the second server included in the group is superior to the service quality of the second peer included in the group when the first peer is a general grade, the content service providing method of the membership server used in the P2P network. This is provided.

According to the present invention, the P2P network system provides a differentiated service according to the user's grade, and thus can satisfy not only users who want more advanced services but also users who desire low cost services.

1 is a diagram illustrating a conventional P2P network.
2 is a diagram illustrating a P2P network according to an embodiment of the present invention.
3 is a diagram illustrating a communication process between a user terminal and a membership server according to an embodiment of the present invention.
4 is a diagram illustrating a process of receiving content by a user having a general rating according to an embodiment of the present invention.
5 is a diagram illustrating a process of receiving content by a user having a high grade according to an embodiment of the present invention.
FIG. 6 is a diagram illustrating an example of a P2P network in which another service for each grade of a user is provided according to an embodiment of the present invention.
7 is a flowchart illustrating the overall flow of a method of providing a content service of a membership server used in a P2P network according to an embodiment of the present invention.
8 is a flowchart illustrating the overall flow of a service providing method of a peer used in a P2P network according to an embodiment of the present invention.
9 is a block diagram illustrating a detailed configuration of a membership server used in a P2P network according to an embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a diagram illustrating a P2P network according to an embodiment of the present invention.

Referring to FIG. 2, the P2P network according to the present embodiment is a network in which several nodes (peers) participate in a content service, and includes a plurality of peers and a membership server 206.

Hereinafter, although each of the peers may transmit or receive content, for convenience of explanation, it is assumed that the first peer is a user who receives the content, and the second peer to the third peer are referred to as the first peer. Assume the peers to provide. In addition, it is assumed that terminals owned by the first peer, the second peer, and the third peer are the user terminal 200, the first server 202, and the second server 204, respectively.

According to an embodiment of the present invention, the servers 202 and 204 of the second to third peers are divided in parallel by dividing the file interval into the user terminal 200 as shown in FIG. 2 for fast content (file) transmission. Can be sent to. For example, when the capacity of a file to be transmitted to the user terminal 200 is 600 MB (Mbyte), the first server 202 transmits an initial 300 MB section to the user terminal 200, and the second server 204 is a user. The remaining 300MB section may be transmitted to the terminal 200.

The user terminal 200 is a terminal owned by the user (first peer), and may be a laptop, a desktop, a smartphone, an IPTV, a terminal of a cloud computing system, a computer of a contents distribution network, or the like. Can be. The user terminal 200 may also be wirelessly connected to the membership server 206 and the servers 202 and 204, respectively.

According to an embodiment of the present invention, the user terminal 200 includes information for selecting servers 202 and 204 to transmit content from the membership server 206, in particular, a first server 202 to transmit an initial 300MB interval. Grouping information including the grouping information and the second server 204 to transmit the remaining 300MB interval is obtained. The user terminal 200 selects servers to transmit content by using the grouping information. Detailed description thereof will be described later.

In addition, the user terminal 200 receives content (file) from the servers 202 and 204 based on the information transmitted from the membership server 206.

The membership server 206 collects and manages information necessary for operation of the content service, for example, subscriber information (ID, password, user's rating, etc.) and content information (file name, owner, etc.), and the peer requesting the service. Provide the request information.

In particular, when there is a request for the content of the user terminal 200, information of the servers owning the content is collected, and the information on the collected servers is grouped into a plurality of groups according to different transmission intervals for each group. The grouping information of the plurality of groups is transmitted to the user terminal 200.

Here, the transmission section means information on which section of the n sections to transmit the content to the first peer when the content is divided into n sections.

Accordingly, a transmission section of the content is designated differently for each of a plurality of groups, and servers belonging to each group transmit the content to the user terminal 200 by the designated transmission section.

According to an embodiment of the present invention, peers may be classified into various layers such as general grade, advanced grade, and the like, and the membership server 206 may be grouped by varying the number of groups according to the grade of the user terminal 200. .

According to an embodiment of the present invention, the membership server 206 sends a ticket encrypted with the private keys between the server and the membership server 206 together with the information when transmitting information about the servers having the content to a specific peer. Information can be sent together.

Here, each of the servers 204 and 206 transmits all or part of the content to the user terminal 200. However, each of the servers 204 and 206 authenticates the user terminal 200 before the content is transmitted. In this case, each of the servers 204, 206, and 208 authenticates the user terminal 200 by verifying the ticket information transmitted from the user terminal 200 with its private key without requesting authentication information to the membership server 202. can do.

Hereinafter, a process of providing a content service of the present invention will be described with reference to the accompanying drawings.

3 is a diagram illustrating a communication process between a user terminal and a membership server according to an embodiment of the present invention. Here, it is assumed that the first user terminal 301 is a terminal of a user having a general grade, and the second user terminal 303 is assumed to be a terminal of a user having a high grade.

Referring to FIG. 3, when the first user terminal 301 and the second user terminal 303 request content from the membership server 206, the membership server 206 determines the user's grade and thus the terminal of the first user. 301 and the second user terminal 303 transmit the grouped information in different numbers of groups. Here, one group may include the same number of servers. Of course, different groups may include different numbers of servers.

According to another embodiment of the present invention, the membership server 206 transmits the same number of group information irrespective of the grade, but enables fast content delivery to high-grade users, that is, has a good network environment or assigns high-grade peers. In addition, regular users can be assigned normal network environments or general peers.

According to an embodiment of the present invention, when the capacity of the content requested by each server is 600MB, the grouping information transmitted to the first user terminal 301 and the second user terminal 303 may be as follows.

[ Grouping Information Sent to First User Terminal (General Grade User) ]

1st group {Peer1, Peer 2, Peer3, 0 ~ 300MB}

2nd group {Peer4, Peer 5, Peer6,301 ~ 600MB}

[ Grouping Information Sent to Second User Terminal (Advanced User) ]

First group {Peer1, Peer 2, Peer3, 0-150MB}

2nd group {Peer4, Peer 5, Peer6, 151 ~ 300MB}

3rd group {Peer7, Peer 8, Peer9, 301 ~ 450MB}

4th group {Peer10, Peer 11, Peer12, 451 ~ 600MB}

In other words, the first user may be provided with content of 0 to 300MB from one or more peers of the first group, and may be provided with content of 301MB to 600MB from at least one peer of the second group.

In addition, the second user may have content of 0 to 150MB from one or more peers in the first group, content of 151 to 300MB from one or more peers in the second group, and 301 to 450MB from one or more peers in the third group. The content of the 451 ~ 600MB section may be provided from one or more peers of the fourth group.

 4 is a diagram illustrating a process of receiving content by a user having a general rating according to an embodiment of the present invention.

Referring to FIG. 4, when the first user terminal 301 requests the membership server 206 for content having a size of 600 MB, the membership server 206 is grouped into a first group 401 and a second group 403. The received information to the first user terminal 301.

Herein, the transmission information of the first group 401 is 0 to 300 MB, and the transmission information of the second group 403 is 301 MB to 600 MB.

Referring to FIG. 4, the first user terminal 301 selects a first peer 411 by using information of servers belonging to the first group 401, and selects information of servers belonging to the second group 403. To select the fifth peer 413.

According to an embodiment of the present invention, the user terminal may select at least one server for each group by using information of servers belonging to each group.

Subsequently, the first user terminal 301 receives data in the range of 0 to 300MB among the divided data of the content from the first peer 411 and data in the range of 301MB to 600MB from the fifth peer 413.

5 is a diagram illustrating a process of receiving content by a user having a high grade according to an embodiment of the present invention.

Referring to FIG. 5, when the second user terminal 303 requests the membership server 206 for content having a size of 600 MB, the membership server 206 may include the first group 501, the second group 503, and the first group 503. Grouping information of groups grouped into the third group 505 and the fourth group 507 is transmitted to the second user terminal 303.

Here, the second user terminal 303 selects the first peer 511 using the information of the servers belonging to the first group 501, and uses the information of the servers belonging to the second group 503 to receive the fifth user terminal 303. Select peer 513. In addition, the eighth peer 515 is selected using the information of the servers belonging to the third group 505, and the twelfth peer 517 is selected using the information of the servers belonging to the fourth group 507.

Subsequently, the second user terminal 303 receives data in the range of 0 to 150 MB among the divided data of the content from the first peer 511 and data in the range of 151 MB to 300 MB from the fifth peer 513. In addition, the data is transmitted in the range of 301 ~ 450MB from the eighth peer 515 and the data in the range of 451MB ~ 600MB from the twelfth peer 517.

According to an embodiment of the present invention, when the communication state between the second user terminal 303 and the first peer 511 is not good, another peer included in the first group 501 may be selected to select data in the range of 0 to 150 MB. You can continue to receive.

FIG. 6 is a diagram illustrating an example of a P2P network in which another service for each grade of a user is provided according to an embodiment of the present invention.

Referring to FIG. 6, the second user terminal 303 of a user having an advanced grade may have more grouping information (first group 601, second group 603) than the first user terminal 301 of a user having a general grade. ), The third group 605, and the fourth group 607).

Accordingly, since the second user terminal 303 receives 600 MB of content simultaneously from the first peer 511, the fifth peer 513, the eighth peer 515, and the twelfth peer 517, the second user terminal 303 receives the same content. It is possible to receive content faster than the first user terminal 301 that receives 600 MB of content from the peer 411 and the fifth peer 413.

More specifically, the first user terminal 301 of a user with a general rating receives 300 MB of data from one peer, but the second user terminal 303 of a user with a high rating has a size of 150 MB from one peer. Receive data from

As a result, a user with a high grade can receive differentiated services by shortening the time for receiving content compared to a user with a high grade.

Accordingly, the present invention can provide a differentiated service for each user level by adding grouping information to a parallel approach in a P2P network system and can be utilized for providing a large amount of paid real-time content. In addition, P2P-based IPTV, mobile IPTV service, smart TV and cloud computing (Cloud Computing), it can be used to provide differentiated services for each user class in the ad hoc (Ad hoc) network.

7 is a flowchart illustrating the overall flow of a method of providing a content service of a membership server used in a P2P network according to an embodiment of the present invention. Hereinafter, a process performed at each step will be described with reference to FIG. 7.

First, step S700 receives a request for content from the user terminal 200.

Subsequently, step S710 collects information of servers that own content. In this case, the information of the personal servers may be information that is registered and managed in the membership server 206.

Step S720 groups the collected server information into n groups.

According to an embodiment of the present invention, when grouping information of servers, a user grade may be first checked, and the number of groups grouped according to the grade may be varied.

In operation S730, grouping information on the n groups is transmitted to the user terminal 200.

8 is a flowchart illustrating the overall flow of a service providing method of a peer used in a P2P network according to an embodiment of the present invention. Hereinafter, a process performed at each step will be described with reference to FIG. 8.

First, in step S800, the user terminal 200 requests content from the membership server 206.

Subsequently, step S810 receives grouping information from the membership server. The grouping information refers to a plurality of group information generated by grouping information of a plurality of servers owning the content according to the transmission period of the content.

In operation S820, one or more servers are selected for each of a plurality of groups using the grouping information.

In step S830, the content is requested from the selected servers and the content is transmitted from the servers according to the transmission period of the group to which the selected servers belong.

9 is a block diagram illustrating a detailed configuration of a membership server used in a P2P network according to an embodiment of the present invention.

Referring to FIG. 9, the membership server 206 of the present embodiment may include a controller 900, a transceiver 902, a content request receiver 904, a server information collector 906, a grouping unit 908, and grouping information transmission. The unit 910 and the storage unit 912 are included.

The transceiver 902 is a connection path between the user terminal 200, the membership server 206, and servers of peers.

The content request receiver 904 receives a request for content from the user terminal 200.

The server information collecting unit 906 collects servers owning the content.

The grouping unit 908 divides the collected servers into a plurality of groups according to a transmission period to be transmitted by dividing the content to the user terminal 200.

The grouping information transmitter 910 transmits grouping information about the plurality of groups to the user terminal 200.

The storage unit 912 stores various data such as information and content information of servers.

The controller 900 generally controls the operations of the components of the membership server 206.

In the present invention as described above has been described by the specific embodiments, such as specific components and limited embodiments and drawings, but this is provided to help a more general understanding of the present invention, the present invention is not limited to the above embodiments. For those skilled in the art, various modifications and variations are possible from these descriptions. Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

100: user terminal 102: membership server
104,106,108: server 200: user terminal
200: user terminal 202: first server
204: second server 206: membership server
301: first user terminal 303: second user terminal
401: first group 403: second group
411: first peer 413: fifth peer
501: first group 503: second group
505: third group 507: fourth group
511: first peer 513: fifth peer
515: peer eight 517: twelfth peer

Claims (10)

Claimed the operation of the membership server, but claims the scope of rights characterized by grouping the servers holding the content by varying the number of groups according to the level of the first peer.]
In the content service providing method of the membership server used in the P2P network,
Receiving a request for information on content from a first peer;
Collecting information of a plurality of second peers having the content;
Grouping the collected information of the second peers into groups of n-n is two or more natural numbers;
Transmitting grouping information for the n groups to the first peer;
In the grouping, the content service providing method of the membership server used in the P2P network, characterized in that the number of the groups varies according to the grade of the first peer. The method of claim 1,
The first peer is classified into a general grade and an advanced grade, and the number of groups transmitted from the membership server to the first peer when the grade of the first peer is the advanced grade is that the grade of the first peer is the general grade. Is greater than the number of groups transmitted from the membership server to the first peer,
And the groups include information about the same number of second peers. The method of claim 1,
And the content information includes a file name of the content and information on a peer that holds the content. The method of claim 1,
The grouping information is
Method for providing a content service of a membership server used in a P2P network, characterized in that it includes list information of the second peers included in the n groups and information on the transmission interval of the content specified differently for each of the n groups. . The method of claim 1,
Transmitting the encrypted ticket information together with the secret keys between the second peers belonging to the group and the membership server when transmitting the grouping information to the first peer,
And the plurality of second peers verify the ticket information with their private key to authenticate whether the first peer is authorized to receive the content. In the content service providing method of the first peer used in the P2P network,
Requesting content information from the membership server;
Receiving grouping information from the membership server according to the request, wherein the grouping information is generated by grouping information of a plurality of second peers owning the content according to the transmission period of the content, n being 2 Group information of the above natural numbers. And
Selecting at least one second peer from each of the groups included in the grouping information;
And requesting content from the selected second peers, wherein the number of groups varies according to the level of the first peer that requested the content. The method of claim 6,
The grouping information is
At least one of a list of second peers included in each of the n groups and a transmission interval of the content designated differently for each of the n groups,
The transmission section means information on which section of the n sections to transmit the divided content to the first peer when the content is divided into n sections. How to Provide Services. The method of claim 7, wherein
If a second peer selected in the group fails and the content cannot be transmitted, a new second peer is selected from the group to request the content again, wherein the peer is used in a peer-to-peer network. In the content service providing method of the membership server used in the P2P network,
Collecting information about second peers having content according to the content information requested from the first peer;
Generating grouping information by grouping the second peers into n (natural numbers) groups; And
Transmitting the generated grouping information to the first peer,
The number of groups included in the grouping information is the same regardless of the rank of the first peer,
Service quality of a second peer included in the group when the first peer is a high grade is superior to service quality of a second peer included in the group when the first peer is a general grade
Method of providing content service of membership server used in P2P network. 10. The method of claim 9,
If the peer's class is an advanced class, second peers having a network speed greater than or equal to a predetermined value are assigned to the group, and if the peer's class is a general class, the network speed is less than a predetermined value in the group. A method of providing a content service of a membership server used in a P2P network, wherein peers are assigned.

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