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Method, device and system for obtaining media contents

A technology for media content and content identification, which is applied in the field of communication and can solve problems such as business impact

Inactive Publication Date: 2011-08-03
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And if the current connection is congested, all services on the connection will be affected

Method used

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  • Method, device and system for obtaining media contents
  • Method, device and system for obtaining media contents
  • Method, device and system for obtaining media contents

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 2 As shown, the embodiment of the present invention provides a method for obtaining media content, including:

[0038] Step 101: The media content request entity sends a media content request to the central storage or the regional cache node, and the media content request carries a content identifier and a stream index;

[0039] Flow index: X-Flow-Index="X-Flow-Index"": "1*DIGIT

[0040] Meaning: Stream indexes with the same value represent the media content requests initiated by the media content request entity for the access requests sent by the same terminal at the same time.

[0041] In the embodiment of the present invention, network elements such as edge servers and regional cache nodes that need to request media content from upper-level nodes are collectively referred to as media content requesting entities.

[0042] Step 102: The media content request entity receives a response message, the response message carries the media content obtained by...

Embodiment 2

[0048] An embodiment of the present invention provides a method for acquiring media content. When the terminal requests the media content from the edge server, if the media content requested by the terminal is not cached in the edge server, the edge server uses the method provided in this embodiment to obtain the media content requested by the terminal from a nearby regional cache node. see image 3 , the method includes:

[0049] Step 201: the terminal initiates an access request to the edge server;

[0050] Wherein, when a terminal needs to request a certain media content, the terminal sends an access request to the edge server, and the access request carries the content ID of the media content requested by itself; the edge server receives the access request sent by the terminal, and according to the content ID carried by the access request, Find out whether there is corresponding media content in the corresponding relationship between content ID and media content, if not,...

Embodiment 3

[0082] An embodiment of the present invention provides a method for acquiring media content. The edge server receives the access request sent by the terminal, and finds out that it has not cached the media content requested by the access request. The edge server uses the method provided in Embodiment 2 to obtain the media content from the local cache node nearby itself. media content, the edge server uses the method provided in this embodiment to obtain the media content from the central storage server that stores the media content. see Figure 4 , the method includes:

[0083] Step 301: the edge server obtains the address information of the central storage server storing the media content requested by the terminal;

[0084] Specifically, according to the content ID requested by the terminal, the edge server finds the corresponding address information from the correspondence between the content ID and the address information stored in the CDN routing server, wherein the addr...

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PUM

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Abstract

The invention discloses a method, device and system for obtaining media contents, belonging to the field of communication. The method comprises the steps: a media content request entity sends a media content request to a storage server, wherein the media content request carries content identifiers and stream indexes, the stream indexes are used for identifying media content requests initiated by the media content request entity in current; the media content request entity receives a response message from the storage server, wherein the response server carries the stream indexes and media contents obtained by the storage server; the media content request entity determines the media content requests corresponding to the response message according to the stream indexes carried in the response messages; and the media content request entity sends the media contents carried in the response message to a corresponding terminal according to the determined media content requests. According to the invention, time delay of transmitting data is reduced and normal transmission of the data is ensured.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method, device and system for acquiring media content. Background technique [0002] CDN (Content Delivery Network, Content Distribution Network) is to add a new layer of network architecture to the existing IP (Internet Protocol, Internet Protocol) transmission network. In CDN, the media content provided by the website can be released to the network closest to the user. "Edge", users can obtain the required media content from the CDN nearby. [0003] Such as figure 1 In the CDN network architecture shown, the CDN includes a central storage server, an edge server, an area cache node and a CDN routing server. Among them, the service provider publishes the media content in the central storage server, the edge server and the regional cache node in the CDN store the media content in the central storage server, the CDN routing server stores the address information of the central ...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L29/08
CPCH04L65/4084H04L65/1069H04L29/06462H04L29/06326H04L65/612
Inventor 欧雄兵陈寒冰
Owner HUAWEI TECH CO LTD
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