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Method, device and system for node management and access in peer-to-peer network

A peer-to-peer network and node management technology, which is applied in the field of node management and can solve the problems of unclear management methods, inability to provide streaming media content, and large quantities.

Inactive Publication Date: 2010-01-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned second management node method only proposes to find nodes with adjacent playing time, but does not give a specific method for judging the adjacent time. The specific management method is not clear. When looking for the source node, it is necessary to exchange information with each adjacent node. , resulting in low efficiency and a large number of source nodes, and it takes a long time to establish a connection with the source node
Moreover, in the above method, judging the capabilities (such as uplink bandwidth) of adjacent nodes may cause the nodes establishing a partnership relationship to be unable to provide corresponding streaming media content due to the limitation of node capabilities

Method used

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  • Method, device and system for node management and access in peer-to-peer network
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  • Method, device and system for node management and access in peer-to-peer network

Examples

Experimental program
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Effect test

Embodiment 1

[0049] Such as figure 1 As shown, this embodiment provides a node management method in a peer-to-peer network, including the following steps:

[0050] 101. The scheduling server receives the access request initiated by the requesting node, wherein the requesting node needs to obtain data through a peer-to-peer network;

[0051] 102. After receiving the access request initiated by the requesting node, the scheduling server determines the group to which the requesting node belongs according to the playing time point in the access request, wherein different groups correspond to different playing time periods of the media program;

[0052] 103. The scheduling server provides candidate nodes to the requesting node according to the group to which the requesting node belongs, and sends the candidate node information to the requesting node through a response message; since all nodes in the group to which the requesting node belongs are the same as the requesting node's playing time pe...

Embodiment 2

[0067] This embodiment provides a method for node access in a peer-to-peer network, and a method for managing each node.

[0068] First of all, the scheduling server needs to form a group of nodes with similar viewing points of the program, namely: Session, so a program will be divided into many groups, each group corresponds to a different playing time period of the program, and each group has Identified by SessionID. The following describes the parameters formed by dividing programs into viewing groups:

[0069] ΔT: It is the time interval of the group. Due to the limitation of the cache size in the node, the nodes in a group can only share the cache data of ΔT time at most;

[0070] t: duration of a media program;

[0071] T0: the moment when the scheduling server creates the group;

[0072] Tj: the moment when a new node joins a group;

[0073] ts: The broadcasting time point of the program requested by the node when joining, that is, the time point in the program, so ...

Embodiment 3

[0112] Corresponding to the above-mentioned embodiment 2, this embodiment provides a node management device in a peer-to-peer network and a node access device in a peer-to-peer network.

[0113] Generally, the node management device in the peer-to-peer network is mainly used in the scheduling server, such as Figure 11 As shown, the device includes: a receiving unit 111 , a processing unit 112 , a searching unit 113 , a sending unit 114 , and a first calculating unit 115 .

[0114] First, the node management device needs to divide the media content into multiple groups, and the first calculation unit 115 is used to calculate the number of groups according to the total playing time and the group interval of the current media program, and calculate according to the following formula: Wherein, the t is the total playing time of the current media program; the ΔT is the group interval; the is the round-up function.

[0115] The receiving unit 111 is used to receive the access r...

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Abstract

The invention discloses a method, a device and a system for node management and access in a peer-to-peer network, and solves the problem of low efficiency during searching a source node in the prior peer-to-peer network. The method of the embodiment of the invention comprises the following steps: dividing nodes watching media contents into different groups on a dispatching server according to a watching time period; and when a new node requests for accessing, determining the group through the requested play time point, then searching candidate nodes in the determined group or the adjacent group, and selecting the source node from the candidate nodes by the new node so as to carry out data exchange. The embodiment of the invention is mainly applied to a service system which adopts point-to-point technology in the peer-to-peer network such as live broadcast or request program adopting point-to-point stream media.

Description

technical field [0001] The invention relates to the technical field of computer networks, in particular to a node management method and device in a computer peer-to-peer network, a node access method and device, and a system supporting request node management and access methods. Background technique [0002] Peer-to-peer network technology is a technology that uses terminal computing power and network bandwidth to share files between users, and provides a good technical foundation for the popularization of streaming media services. The provision of streaming media services based on peer-to-peer networks enables nodes (ie, terminals) to share existing data with each other, without all concentrating on the server to obtain data, thereby reducing the burden on the server. [0003] In the prior art, a way of managing nodes in a peer-to-peer network-based streaming media service system is to organize nodes in the system according to a "tree" logical structure. This "tree" logica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/56H04L12/18H04L29/08
Inventor 陈兵艾常权李靖邹子轩
Owner HUAWEI TECH CO LTD