A p2p-based streaming media transmission method, device and system

Abstract

The present application discloses a P2P-based streaming media transmission method, device and system, including: sending a first request message to at least one predetermined service node; receiving and playing the first type of streaming media block sent by at least one service node; When the number of unplayed first-type streaming media blocks is greater than or equal to a preset threshold or the requested first-type streaming media blocks have been received, send a second request message to at least one service node; the requesting node receives at least A second type of streaming chunk sent by a service node. Compared with the prior art, the P2P-based streaming media transmission method, device and system proposed by the present invention can not only reduce the initial time delay for users to watch streaming media, but also not cause excessive signaling overhead.

Description

technical field [0001] The present application relates to mobile communication technology, in particular to a P2P-based streaming media transmission method, device and system. Background technique [0002] In recent years, network applications based on P2P (Peer-to-Peer, peer-to-peer network) technology have developed rapidly, and these applications include file sharing applications, real-time streaming media applications, and distributed file systems. P2P technology is an application mode that shares resources and services through direct exchange between network elements. In the P2P system, each node has the same status and has dual functions of client node and server. Each node can not only provide services to other nodes, but also accept services provided by other nodes. [0003] figure 1 It is a schematic structural diagram of a P2P streaming media system in the prior art. like figure 1 As shown, the existing P2P streaming media system includes: a resource index serv...

AI Technical Summary

Problems solved by technology

[0021] In step 206 of the above-mentioned P2P-based streaming media transmission process, the request message sent by the request node to each service node carries the identifiers of all streaming media blocks corresponding to each service node, because each service node is receiving After the request message sent by the requesting node, all streaming media blocks saved by itself need to be sent to the requesting node, and each streaming media block sent by each service node is independent of each other, so the service node cannot send the requesting node to start playing the streaming media The required streaming media blocks are quickly sent to the requesting node, which will cause the user to watch the initial delay of streaming media; and because the size or duration of each streaming media block is divided in the existing streaming media block method It is fixed. If each streaming media block is divided too large or the duration is too long, it will also cause the user to watch the initial delay of streaming media, seriously affecting user experience; if each streaming media block is divided too much If the duration is too small or the duration is too short, it will cause excessive signaling overhead

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