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P2P (peer 2 peer) resource downloading method and identification device

A technology for identifying devices and downloading resources, applied in the information field, can solve the problems of wasting network resources and excessive network traffic, and achieve the effect of reducing traffic and interaction

Inactive Publication Date: 2010-07-07
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] The purpose of the present invention is to solve the problem of excessive network traffic between packet domains caused by the prior art P2P download without considering the underlying topology structure, resulting in waste of network resources, and propose a P2P resource download method and identification device to reduce the number of packets traffic, improving the utilization of network resources

Method used

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  • P2P (peer 2 peer) resource downloading method and identification device
  • P2P (peer 2 peer) resource downloading method and identification device
  • P2P (peer 2 peer) resource downloading method and identification device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Figure 4 It is a flow chart of a P2P resource downloading method according to the embodiment of the present invention. Such as Figure 4 As shown, this embodiment includes:

[0048] Step S102: After receiving the query request message for the target resource initiated by the requesting node, obtain a resource list including the information of available nodes, and the available nodes have the target resource;

[0049] Step S104: sort the available nodes in the resource list according to the principle that the nodes in the same grouping domain as the requesting node are prioritized;

[0050] Step S106: Download the target resource according to the sorted resource list.

[0051] This embodiment overcomes the defect in the prior art that only credit values ​​are considered when resource selection is performed, and the underlying topology is not considered, and the available nodes in the same grouping domain as the requesting node are preferentially selected for resource...

Embodiment 2

[0053] Figure 5 It is a flowchart of a P2P resource downloading method according to Embodiment 2 of the present invention. Such as Figure 5 As shown, this embodiment includes:

[0054] Step S202: After receiving the query request message for the target resource initiated by the requesting node, obtain a resource list including available node information;

[0055] Step S204: Whether there is an available node in the same group domain as the requesting node in the resource list, if yes, execute step S206, otherwise, execute step S208;

[0056] Step S206: The available nodes in the same grouping domain as the requesting node have high priority, and sort them according to the credit value from high to low, and execute step S214;

[0057] Step S208: Whether there is an available node in the resource list that is in the adjacent group domain with the requesting node, if yes, execute step S210, otherwise, execute step S212;

[0058] Step S210: The available nodes in the adjacen...

Embodiment 3

[0063] In this embodiment, on the basis of Embodiment 1 and Embodiment 2, the method for downloading P2P resources will be described in detail in combination with specific devices.

[0064] In the 2G / 3G network, GGSN will assign IP addresses to mobile terminals when performing P2P services. Figure 7 It is a flowchart of the GGSN assigning an IP address to a mobile terminal in the third P2P resource downloading method of the present invention. Such as Figure 7 As shown, this flowchart includes:

[0065] Step S302: the mobile terminal sends an activation packet data protocol (PacketData Protocol, PDP for short) context request to the SGSN;

[0066] Step S304: the SGSN and the mobile terminal perform security function negotiation;

[0067] Step S306: SGSN sends a request to create a PDP context to GGSN;

[0068] Step S308: the GGSN sends a PDP context creation response to the SGSN;

[0069] Step S310: the SGSN sends a response to activate the PDP context to the mobile term...

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Abstract

The invention discloses a P2P (peer 2 peer) resource downloading method and an identification device. The method comprises the following steps of: after an inquiry request message initiated by a request node to a target resource, acquiring a resource list containing the information of available nodes of the target resource; sequencing the available nodes in the resource list according to a principle that the available nodes which are in the same grouping domain as the request node are preferential; and downloading the target resource according to the sequenced source list. The invention overcomes the defect that bottom topology is not considered during selecting the resource in the traditional P2P technology, and resource downloading is carried out by preferentially selecting the available nodes in the same grouping domain as the request node. The method can effectively reduce flow rates between grouping domains so as to reduce the operating cost of network operators.

Description

technical field [0001] The invention relates to the field of information technology, in particular to a P2P resource downloading method and an identification device. Background technique [0002] Peer to Peer (P2P for short) technology is an application mode in which resources and services are shared through direct exchange between network elements. In the P2P network structure, each node has the same status, and has the dual functions of client and server at the same time, and can be both a user and a provider of services. [0003] In recent years, P2P applications represented by BT (BitTorrent), Emule, etc. have developed rapidly, and P2P-based instant messaging, streaming media, and Internet IP telephony have also developed rapidly. P2P applications in the fixed Internet have surpassed Web applications. , accounting for more than 50% of fixed Internet traffic. In the current mobile Internet environment, limited by the network and terminals, mobile P2P applications have ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/00H04L12/58
Inventor 王菁魏彬
Owner CHINA MOBILE COMM GRP CO LTD