P2P SYSTEM AND A RESOURCE QUERY METHOD FOR THE SAME

• US 20100191855A1
• Filed: 02/01/2010
• Published: 07/29/2010
• Est. Priority Date: 07/30/2007
• Status: Active Grant

• Current Assignee: ZTE Corporation
• Original Assignee: ZTE Corporation
• Inventors: Tian, Hongliang, ZHANG, Xin, DONG, Zhenjiang, HUANG, Zheng, HU, Jie, HONG, Ling, XIAO, Sui
• Granted Patent: US 8,868,747 B2
• Time in Patent Office: Days
• US Class Current: 709/226
• CPC Class Codes: H04L 67/104 Peer-to-peer [P2P] networks
• CPC Class Codes: H04L 67/1063 Discovery through centralising entities
• CPC Class Codes: H04L 67/1093 Some peer nodes performing special functions

Abstract

The present invention discloses a P2P system and a resource query method for this system, wherein the P2P system includes: at least one content management servers, for managing the distribution of content resources in its domain and accepting a resource query request from P2P node in its domain; and at least one resource management servers, for managing the content resources of the P2P nodes in its domain, accepting a resource query request from P2P nodes in its domain and in domains of other resource management servers, and reporting to the at least one content management servers the statistic information of the content resources in its domain.

Claims

1. A P2P system, comprising:

at least one content management servers for managing the distribution of content resources in its domain and accepting a resource query request from P2P nodes in its domain; and

at least one resource management servers for managing the content resources of the P2P nodes in its domain, accepting a resource query request from the P2P nodes in its domain and in the domain of other resource management servers, and reporting to the at least one content management servers the statistic information of the content resources in its domain.

2. The P2P system according to claim 1, wherein the at least one resource management servers serve one or more of the at least one content management servers.

3. The P2P system according to claim 2, wherein the at least one resource management servers are independent of each other, and the at least one content management servers are independent of each other.

4. The P2P system according to claim 3, wherein each of the at least one resource management servers corresponds to one service domain which includes multiple P2P nodes.

5. The P2P system according to claim 4, wherein multiple service domains constitute one management domain, and the multiple resource management servers corresponding to the multiple service domains in a same management domain have identical management domain identifier.

6. The P2P system according to claim 5, wherein the P2P node acquires during registration the information of the resource management server corresponding to the service domain that the P2P node belongs to.

7. The P2P system according to claim 6, wherein the P2P node acquires during logging-in the information of the resource management server corresponding to other service domains which are located in the same management domain as the service domain that the P2P node belongs to.

8. A resource query method for the P2P system according to claim 1, including the following steps:

S302, a P2P node initiates a resource query request to resource management servers of the service domain that the P2P node belongs to;

S304, if the P2P node judges, according to the information returned by the resource management servers of the service domain that the P2P node belongs to, that there is no effective resource or the effective resource is not enough in the service domain that the P2P node belongs to, the P2P node initiates a resource query request to the resource management servers of other service domains;

S306, if the P2P node judges, according to the information returned by the resource management servers of said other service domains, that there is no effective resource or the effective resource is not enough in said other service domains, the P2P node initiates a resource query request to one or more content management servers served by the resource management servers of the service domain that the P2P node belongs to;

S308, in response to the request of the P2P node, said one or more content management servers return a list of the resource management servers having effective resource; and

S310, the P2P node initiates a resource query request to one or more resource management servers in the list of resource management servers.

9. The resource query method according to claim 8, wherein the information returned by the resource management servers of the service domain that the P2P node belongs to is a list of candidate source nodes having effective resource in the service domain that the P2P node belongs to.

10. The resource query method according to claim 9, wherein the information returned by the resource management servers of said other service domains is a list of candidate source nodes having effective resource in said other service domains.

11. The resource query method according to claim 10, wherein in the Step S304, the P2P node sequentially or simultaneously initiates the resource query request to the resource management servers of said other service domains.

12. A resource query method for the P2P system according to claim 1, including the following steps:

S302, the P2P node initiates a resource query request to resource management servers of the service domain that the P2P node belongs to;

S304, after judging that there is no effective resource or the effective resource is not enough in the service domain that the P2P node belongs to, the P2P node initiates a resource query request to resource management servers of other service domains, otherwise the resource query is ended;

S306, after judging that there is no effective resource or the effective resource is not enough in said other service domains, the P2P node initiates a resource query request to one or more content management server served by the resource management servers of the service domain that the P2P node belongs to, otherwise the resource query is ended;

S308, in response to the request of the P2P node, said one or more content management servers return a list of the resource management servers having effective resource; and

S310, the P2P node initiates a resource query request to one or more resource management servers in the list of resource management servers.

13. The resource query method according to claim 12, wherein the information returned by the resource management servers of the service domain that the P2P node belongs to is a list of candidate source nodes having effective resource in the service domain that the P2P node belongs to.

14. The resource query method according to claim 13, wherein the information returned by the resource management servers of said other service domains is a list of candidate source nodes having effective resource in said other service domains.

15. The resource query method according to claim 14, wherein in the Step S304, the P2P node sequentially or simultaneously initiates the resource query request to the resource management servers of said other service domains.