KR102017711B1 - Method and apparatus for managing or sharing of peer status information in peer to peer network - Google Patents

Abstract

Disclosed herein is a P2P network system. The peer activity information management server of the P2P network system receives an inquiry from another PAMS about whether it is a PAMS that controls a peer, or receives status information of the peer or service usage or provision of the peer from the peer or another PAMS. do. In addition, the peer activity information management server determines whether it is in charge of the peer based on the inquiry, or updates the peer list based on the status information of the peers or the service use or provision history of the peer. In addition, the peer activity information management server transmits the status information of the peer included in the peer list to the overlay management server, or transmits the service use or provision history of the peer included in the peer list to the user management server.

Description

METHOD AND APPARATUS FOR MANAGING OR SHARING OF PEER STATUS INFORMATION IN PEER TO PEER NETWORK}

The present invention relates to a peer-to-peer (P2P) network system, and more particularly, to collecting, exchanging, and utilizing peer state or activity information in a P2P network.

Peer-to-peer (P2P) networks are distributed networks in which individual participants or users, called peers, can send and receive resources directly without the help of servers or hosts. One peer may act as a client and may act as a server. When a peer acts as a server, it can share resources with other peers.

Since P2P networks are routing based on content, they can be applied dynamically between peers. In addition, the size of the P2P network may be flexible.

However, when the peer-to-peer network selects a peer that transmits content, the state information of the peers may be appropriately used to increase the efficiency of the network and to control a selfish user who self-uses resources or content. In addition, even when the number of peers participating in the P2P network is large, the management server may obtain the status information of all peers.

An object of the present invention is to configure a P2P network based on the state information of the peer.

Another technical problem of the present invention is to charge for a service used by a user or provide a benefit for a service provided by a user based on resource or content sharing status information of a peer.

Another technical problem of the present invention is to provide a method and apparatus for managing a plurality of servers peers.

According to an aspect of the present invention, the peer activity information management server receives an inquiry from another PAMS about whether it is a PAMS for jurisdiction of a peer, or receives status information of the peer or service usage or provision of the peer from the peer or Receive from another PAMS. In addition, the peer activity information management server determines whether it is in charge of the peer based on the inquiry, or updates the peer list based on the status information of the peers or the service use or provision history of the peer. When the peer activity information management server manages the peer, the peer activity information management server transmits the state information of the peer included in the peer list to the overlay management server, or the user uses the service usage or provision history of the peer included in the peer list. Send to management server.

According to the present invention, status information or activity information of peers can be managed regardless of the number of peers participating in the P2P network.

According to the present invention, it is possible to efficiently configure a P2P network by using the collected peer state information.

According to the present invention, the collected activity information of the peer may be used to charge the user or provide a benefit to the user.

1 is a diagram illustrating an example of a method of exchanging or utilizing status information or activity information of a peer in a P2P network according to the present invention.
2 is a diagram illustrating an example of a method in which a peer joining a P2P network searches for a peer activity information management server (PAMS) according to the present invention.
3 is a flowchart illustrating an example of an operation of a peer activity information management server (PAMS) constituting a P2P network according to the present invention.
4 is a flowchart illustrating another example of an operation of a peer activity information management server (PAMS) constituting a P2P network according to the present invention.
5 is a flowchart for explaining another example of the operation of a peer activity information management server (PAMS) constituting a P2P network according to the present invention.
6 is a flowchart for explaining another example of the operation of a peer activity information management server (PAMS) constituting a P2P network according to the present invention.
7 is a flowchart illustrating another example of an operation of a peer activity information management server (PAMS) constituting a P2P network according to the present invention.
8 is a flowchart illustrating an example of an operation of a peer constituting a P2P network according to the present invention.
9 is a flowchart illustrating an example of an operation of a peer constituting a P2P network according to the present invention.
10 is a flowchart illustrating an example of an operation of a peer constituting a P2P network according to the present invention.
11 is a block diagram illustrating an example of a peer activity information management server (PAMS) constituting a P2P network according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In addition, in order to clearly disclose the present invention, parts not related to the present invention are omitted, and the same or similar reference numerals denote the same or similar elements in the drawings.

The objects and effects of the present invention may be naturally understood or more apparent from the following description, and the objects and effects of the present invention are not limited only by the following description.

The objects, features and advantages of the present invention will become more apparent from the following detailed description. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Now, a method and apparatus for managing or sharing status information or activity information of a peer in a peer-to-peer network according to the present invention will be described.

1 is a diagram illustrating an example of a method of exchanging or utilizing status information or activity information of a peer in a P2P network according to the present invention.

Referring to FIG. 1, a P2P network includes an area A 101 and an area B 111 configured based on peers. The P2P network may include a plurality of regions or only one region.

Region A 101 and region B 111 each include at least one peer. The peer may be a personal computer, a smart phone, or a notebook. In FIG. 1, region A 101 includes peer A1 10, peer A2 106, and peer A3 107, and B 101 includes peer B1 115, peer B2 116, and peer B3 ( Inclusion of 117 is one example, and each region may be configured with various types of peers.

P2P network includes a peer activity management server (PAMS), PAMS refers to a peer activity information management server. The P2P network may include a plurality of PAMSs or only one PAMS. In FIG. 1, the P2P network includes the PAMS A 121 and the PAMS B 131. For example, the P2P network may include various types of PAMS.

PAMS A 121 manages peers 105, 106, 107 in region A 101. PAMS B 131 manages peers 115, 116, 117 in region B 111.

The PAMS A 121 manages the peer list 123 included in the area A 101 managed by the PAMS A 121, and records or stores the state information or activity information of the peers.

The PAMS B 131 manages the peer list 133 included in the area B 111 managed by the PAMS B 131, and records or stores the state information or activity information of the peers.

The Overlay Management Server (OMS) 151 maintains or manages the state of the P2P network and provides peer lists with information about other peers that can share resources or content to peers in the P2P network. do. That is, the peer list of the OMS may include information about other peers that may share resources or content with peers in a P2P network.

The OMS 151 may receive the state information of the peers 105, 106 and 107 of the area A 101 from the PAMS A 121, and the state of the peers 115, 116 and 117 of the area B 111 from the PAMS B 131. Information can be received. In this case, the peer list of the OMS 151 may reflect state information of peers received from the PAMS A 121 or the PAMS B 131.

If a new peer joins the P2P network, the OMS 151 may inform the new peer of information about the PAMS that may govern the new peer (also referred to as 'jurisdiction PAMS information'), and the existing peers. You can also let them know. This will be described in detail with reference to FIG. 2.

The user management server (UMS) 171 manages information on a P2P service user and manages or maintains a P2P service user list 173.

The user of the P2P based service may use the P2P based service by creating at least one peer.

The service provider of the P2P based service may regard the activity of the created peer as the activity of the P2P service user who created the peer, and based on this, the P2P service user may charge a service fee or provide a benefit for service contribution. . However, since the actual charging method and the benefit providing method is determined by the operator of the P2P-based service arbitrarily, it does not need to be limited to a specific case.

The PAMS reports the peer's activity information (or service usage status information) to the UMS 171. That is, PAMS A 121 reports activity information of peers 105, 106, and 107 to UMS 171, and PAMS B 131 reports activity information of peers 115, 116, and 117 to UMS 171. Through this, the PAMS may provide information on which the P2P based service provider charges or provides benefits to P2P service users.

PAMS (121, 131) receives, maintains or manages the status information of the peer collected from the peer, the usage history of the service (eg, resource or content) or the provision of the service.

PAMS (121, 131) provides the status information of the peer to the OMS (151). Prior to this, the OMS 151 may first request the PAMS 121 and 131 for status information of the peer. In this case, the PAMS 121 and 131 may provide the OMS 151 with status information of the peer based on the request of the OMS 151.

The PAMS 121 and 131 provide the activity information (or service usage status information) of the peer to the UMS 171. Prior to this, the UMS 171 may first request the activity information (or service usage status information) of the peer to the PAMS. In this case, the PAMS 121 and 131 may provide the activity information (or service usage status information) of the peer to the UMS 171 based on the request of the UMS 171.

For example, the peer A2 106 may provide 'resource or content' to the peer B2 116, and then transmit 'state information' and 'resource or content provision history' to the PAMS A 121. Similarly, peer B2 116 may receive 'resource or content' from peer A2 106 and then transmit its status information and resource or content usage history to PAMS B 131.

Meanwhile, the PAMS A 121 and the PAMS B 131 may exchange resource or content providing status information with each other. Through this, the PAMS A 121 or the PAMS B 131 may check whether there is an error in the reporting information of the peers 106 or 116, respectively, and check the overall activity of the peers.

2 is a diagram illustrating an example of a method in which a peer joining a P2P network searches for a peer activity information management server (PAMS) according to the present invention.

Referring to FIG. 2, PAMS A 201, PAMS B 202, PAMS C 203, PAMS D 204, and PAMS E 205 are composed of a DHT (Distributed Hash Table) of the PAMS network 200. Component. The process by which the PAMSs 201, 202, 203, 204, and 205 discover each other may follow any DHT algorithm. This network is also called a PAMS network composed of DHT.

PAMSs 201, 202, 203, 204, and 205 included in the PAMS network 200 configured as DHT share and maintain the DHT. ID areas of peers managed by the PAMSs 201, 202, 203, 204, and 205 are allocated to the DHT. The PAMSs 201, 202, 203, 204, and 205 may transmit and receive activity information of a peer based on the contents of the DHT.

Table 1 shows an example of DHT.

PAMS Peer identity realm PAMS A PID1 ~ PID50 PAMS B PID51 ~ PID100 PAMS C PID101 ~ PID150 PAMS D PID151 to PID200 PAMS E PID201 to PID250

For example, the PAMS that manages the peer 210 whose ID is 'PID197' is PAMS D.

If the peer 210 whose ID is 'PID197' joins the P2P network, the peer 210 inquires of the OMS 220 about the PAMS (PAMS D according to Table 1) to manage itself. The inquiry may be performed by sending an 'inquiry message', and the inquiry message may include 'PID197' which is an ID of the peer 210.

The OMS 220 may query any PAMS in the PAMS network 200 configured of DHT for information on a PAMS capable of managing 'PID197'. At this time, the 'inquiry message' for inquiring information of the PAMS may be transmitted from the OMS 220 to the PAMS network 200. However, requesting a PAMS query for the peer 210 to the PAMS network is an example, and a virtual PAMS may be queried to any PAMS.

PAMS received the inquiry forwards the inquiry to PAMS (PAMS D according to Table 1 above) managing 'PID197' based on the contents of DHT, or PAMS (PAMS D according to Table 1 above) managing 'PID197' The query can be forwarded to a PAMS adjacent to. Based on this, the PAMS managing the 'PID197' (PAMS D according to Table 1) may recognize the query. Subsequently, the PAMS D 204 may transmit its information (ie, PAMS D information) to the OMS 220, and the OMS 220 sends the received 'PAMS D information' to the peer 210 having the ID 'PID197'. To).

3 is a flowchart illustrating an example of an operation of a peer activity information management server (PAMS) constituting a P2P network according to the present invention.

Referring to FIG. 3, the PAMS receives an inquiry about a PAMS that is in charge of (or assumes) a peer from an OMS or another PAMS (S300). The inquiry may be received via an inquiry message.

Based on the query, the PAMS checks whether it manages (or manages) the peer (S305).

If the peer is a peer managed by the peer, PAMS transmits its information to the OMS (S310). The information of one's own may include a range of IDs under his / her own control or the ID of the peer.

The PAMS receives the connection request from the peer (S315), and based on this, the PAMS further stores the peer's information in its peer list (S320). The own peer list may refer to a peer list owned or managed by the PAMS itself.

The PAMS may transmit the information requested by the peer to the peer (S325). In addition, the PAMS may transmit whether the PAMS connection is successful to the peer.

If the peer is a peer that is not in control (or not managed) by the PAMS, the PAMS transmits the received query to the neighbor PAMS based on the DHT (S330).

4 is a flowchart illustrating another example of an operation of a peer activity information management server (PAMS) constituting a P2P network according to the present invention.

Referring to FIG. 4, the PAMS is requested from the OMS for status information on a specific peer or all peers (S400).

At this time, the PAMS extracts the state information of the requested peer from its peer list (S405), and transmits the state information of the peer to the OMS (S410).

5 is a flowchart for explaining another example of the operation of a peer activity information management server (PAMS) constituting a P2P network according to the present invention.

Referring to FIG. 5, the PAMS receives status information of a peer or a service (eg, content or resource) usage history or a service providing history (S500).

The PAMS updates its peer list based on the status information of the peer, the service usage history, or the service providing history (S505).

In this case, the PAMS may transmit information received by the PAMS to the PAMS of the peer (S510). The peer peer's PAMS may check the service usage history (eg, content or resource) or service provision history (eg, content or resource) for the peer.

6 is a flowchart for explaining another example of the operation of a peer activity information management server (PAMS) constituting a P2P network according to the present invention.

Referring to FIG. 6, the PAMS receives a service (eg, content or resource) usage history or service provision history for its peer from another PAMS (S600).

The PAMS checks whether the received service usage history or service provision history matches the peer list (S605). That is, the PAMS checks whether there is an error in the service usage history or the service provision history.

If the information in its peer list and the received service use history or service provision history match, the PAMS transmits a response indicating 'confirmed information' to another PAMS (S610).

The PAMS receives a response from the peer (S615). Through the response, the PAMS may receive service usage history or service provision history from the peer.

The PAMS analyzes the response and checks whether there is an error in the service provision history (eg, content / resource) (S620).

If the PAMS analyzes the response and there is an error in the service provision history (eg, content / resource), the PAMS transmits the error to the PAMS that has been requested for confirmation (S625).

If the PAMS analyzes the response and there is no error in the service provision history (eg, content / resource), the PAMS updates the information on the peer in the peer list (S630). Subsequently, the PAMS re-checks the content received from the other PAMS (ie, service usage history or service provision history) to the corresponding peer (S635). For example, the PAMS may transmit a message requesting content received from another PAMS to the peer. Alternatively, a response indicating that the information is confirmed may be transmitted to the other PAMS.

If the information in its peer list and the received service usage history or service provision history do not match in step S605, the PAMS checks again the contents (ie, service usage history or service provision history) received from another PAMS to the corresponding peer. (S635). For example, the PAMS may transmit a message requesting content received from another PAMS to the peer. Alternatively, a response indicating that the information is confirmed may be transmitted to the other PAMS.

7 is a flowchart illustrating another example of an operation of a peer activity information management server (PAMS) constituting a P2P network according to the present invention.

Referring to FIG. 7, the PAMS receives a request for service (eg, content / resource) usage status for at least one peer from the UMS (S700).

The PAMS extracts the service usage history of the peer in the peer list (S705). The service usage history of the peer may include a service (eg, content / resource) usage history or a service providing history.

The PAMS organizes the information requested by the UMS (for example, details of peer transmission and reception) and transmits the information to the UMS (S710).

8 is a flowchart illustrating an example of an operation of a peer constituting a P2P network according to the present invention.

Referring to FIG. 8, the peer performs initialization (S800).

The peer asks the OMS for information of a PAMS to manage itself (S805).

The peer receives the information of the PAMS to manage itself from the OMS (S810).

The peer requests subscription to the PAMS based on the information of the PAMS to manage the self (S815).

The peer receives information required for the activity from the PAMS (S820). The information necessary for the activity includes the contents of the information to be notified to the PAMS or a method of notifying.

The peer stores the information received from the PAMS (S825).

The peer then behaves according to the rules specified by the PAMS.

9 is a flowchart illustrating an example of an operation of a peer constituting a P2P network according to the present invention.

Referring to FIG. 9, in a P2P-based service, a peer may use a service (eg, content or resource) from another peer, or provide a service (eg, content or resource) to another peer (S900).

When the peer completes the use or provision of the service (S905), the peer arranges to report to the PAMS information of a predetermined level (for example, the level to be reported to the PAMS), that is, the service history used or provided by the peer. (S910).

The peer reports its status information and service (eg, content or resource) usage information from another peer or service (eg, content or resource) provision information to other peers to the PAMS (S915).

10 is a flowchart illustrating an example of an operation of a peer constituting a P2P network according to the present invention.

Referring to FIG. 10, the peer receives a confirmation request for details of using a service such as specific content or resources or details of providing a service from the PAMS (S1000).

The peer checks usage history or provision history of a service maintained / managed by the peer (S1005).

If there is content for the confirmation request received by the peer from the PAMS (S1010), the peer transmits information held by the peer to the PAMS (S1015).

If there is no content for the confirmation request received by the peer from the PAMS (S1010), the peer transmits an error response to the PAMS (S1020).

11 is a block diagram illustrating an example of a peer activity information management server (PAMS) constituting a P2P network according to the present invention.

Referring to FIG. 11, the PAMS 1100 includes a receiver 1105, a transmitter 1110, or a controller 1115. The controller 1115 may further include a peer list 1120.

Receiving unit 1105 receives an inquiry for a PAMS jurisdiction (or in charge) of a peer from an OMS or another PAMS. The inquiry may be received via an inquiry message.

The controller 1115 determines whether the PAMS 1100 manages (or manages) the peer based on the inquiry.

When the peer is a peer managed by the PAMS 1100, the transmitter 1110 transmits information of the PAMS 1100 to the OMS. The information of the PAMS 1100 may include a range of IDs governed by the PAMS 1100 or an ID of the peer.

The receiver 1105 receives a connection request from a peer.

The controller 1115 stores the information of the peer in the peer list 1120 based on the connection request. The peer list 1120 may refer to the peer list 1120 maintained or managed by the PAMS 1100.

The transmitter 1110 may transmit the information requested by the peer to the peer. In addition, the transmitter 1110 may transmit whether the PAMS connection is successful to the peer.

If the peer is a peer that is not controlled (or not managed) by the PAMS 1100, the transmitter 1110 transmits the received query to the neighbor PAMS based on the DHT.

The receiver 1105 receives a request for status information for a specific peer or all peers from the OMS.

The controller 1115 extracts state information of the requested peer from the peer list 1120.

The transmitter 1110 transmits the extracted state information of the peer to the OMS.

The receiver 1105 receives status information of a peer, or receives a service (eg, content or resource) usage history or a service providing history.

The controller 1115 updates the peer list 1120 based on the status information of the peer, the service usage history, or a service providing history.

The transmitter 1110 may deliver the received information (peer status information, service usage history, or service provision history) to the peer peer's PAMS. Based on this, the peer peer's PAMS can check the service usage history (eg, content or resources) or service provision details (eg, content or resources) for the peer.

The receiver 1105 receives a service (eg, content or resource) usage history or service provision history for a peer of the PAMS 1100 from another PAMS.

The controller 1115 checks whether the received service usage history or service provision history matches the peer list 1120 of the. That is, the controller 1115 checks whether there is an error in the service usage history or the service provision history.

If the information in the peer list 1120 and the received service use history or service offer history match, the transmitter 1110 transmits a response indicating 'verified information' to another PAMS.

The receiver 1105 receives a response from the peer. The reception unit 1105 may receive a service usage history or a service provision history from a peer through the response.

The controller 1115 analyzes the response and checks whether there is an error in the service provision history (eg, content / resource).

The controller 1115 analyzes the response, and if there is an error in the service provision details (eg, content / resource), the transmitter 1110 transmits the error content to the PAMS that has been requested for confirmation.

If there is no error in the service provision details (eg, content / resource), the controller 1115 updates the information on the peers in the peer list 1120.

The controller 1115 checks again the contents (ie, service usage history or service provision history) received from the other PAMS to the corresponding peer. In this case, the transmitter 1110 may transmit a message for requesting the contents received from the other PAMS to the peer, or may transmit a response indicating that the information has been confirmed to the other PAMS.

If the information in the peer list 1120 and the received service usage history or service provision history do not match, the controller 1115 checks again the contents (ie, service usage history or service provision history) received from the other PAMS. do. The transmitter 1110 may transmit a message requesting content received from the other PAMS to the peer, or transmit a response indicating that the information is verified to the other PAMS.

The receiving unit 1105 receives a request for service (eg, content / resource) usage status for at least one peer from the UMS.

The controller 1115 extracts the service usage history of the peer in the peer list 1120. The service usage history of the peer may include a service (eg, content / resource) usage history or a service providing history.

The controller 1115 organizes information (eg, peer transmission / reception details) requested by the UMS, and the transmission unit 1110 transmits the information to the UMS.

As those skilled in the art to which the present invention pertains, various permutations, modifications, and changes are possible without departing from the technical spirit of the present invention. It is not limited by.

In the exemplary system described above, the methods are described based on a flowchart as a series of steps or blocks, but the invention is not limited to the order of steps, and certain steps may occur in a different order or concurrently with other steps than those described above. Can be. In addition, those skilled in the art will appreciate that the steps shown in the flowcharts are not exclusive and that other steps may be included or one or more steps in the flowcharts may be deleted without affecting the scope of the present invention.

Claims (10)

In the Peer Activity Management Server (PAMS), which manages peer information,
A receiving unit for receiving an inquiry about whether the PAMS is in charge of a specific peer from another PAMS, or receiving status information of the peer or service usage or provision of the peer from the peer or from another PAMS;
A controller for determining whether to manage the peer based on the inquiry, or updating a peer list based on the status information of the peers or the service use or provision history of the peer;
A transmission unit which transmits state information of the peer included in the peer list to an overlay management server, or transmits a service use or provision history of the peer included in the peer list to a user management server,
The control unit
And when it is determined that the PAMS manages the peer, the peer activity information management server, wherein the peer list is updated based on the status information of the peers or the service usage or provision history of the peer. In the peer activity information management method using a peer activity management server (PMS) for managing peer information,
Receiving an inquiry from another PAMS as to whether it is a PAMS governing a particular peer;
Receiving status information of the peer or details of service use or provision of the peer from the peer or from another PAMS;
Determining whether to manage the peer based on the query, or updating the peer list based on the status information of the peers or the service usage or provision history of the peer; And
Transmitting status information of the peer included in the peer list to an overlay management server or transmitting a service usage or provision history of the peer included in the peer list to a user management server;
The updating step
And when it is determined that the PAMS manages the peer, updating the peer list based on the status information of the peers or the service usage or provision history of the peer. delete The method according to claim 2,
The updating step
And if it is determined that the PAMS does not manage the peer, transmitting the query to another PAMS based on a distributed hash table (DHT). The method according to claim 4,
The DHT is
PAMSs constituting a PAMS network, and the peer activity information management method characterized in that it comprises an ID or a range of IDs that the PAMS jurisdiction. The method according to claim 2,
The updating step
Peer activity information management method characterized in that the PAMS checks whether the service usage or provision history of the peer received from the peer or the other PAMS matches the peer list. The method according to claim 6,
The updating step
If the service usage or provision of the peer received from the other PAMS matches the peer list, the PAMS requests the peer for an error in the service usage or provision of the peer,
If it does not match the list, peer activity information management method characterized in that the peer to confirm the service usage or provision of the peer. The method according to claim 7,
The updating step
When receiving a response from the peer as an error in the use or provision of the service of the peer, and delivers the error to the other PAMS,
If the response is found to be no error, the peer activity information management method characterized in that for updating the service usage or provision history of the peer to the peer list, and confirm the service usage or provision history of the updated peer to the peer. The method according to claim 2,
The transmitting step
And receiving, by the overlay management server, status information of the peer, updating a peer list of the overlay management server, and transmitting status information of the peer to the peer. The method according to claim 9,
The transmitting step
Peer activity information management method characterized in that the user management server charges a service fee or provides a benefit for service contribution to the user based on the service usage or provision history of the peer.

Images