Method for content delivery involving a policy database

A database and content technology, applied in the transmission system, electrical components, etc., can solve the problems of long-time global judgment and complex algorithm, and achieve the effects of eliminating complexity, fast download time, and fast code conversion time

Active Publication Date: 2011-11-23
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dynamic nature of this environment makes the algorithms highly complex and global decisions take a long time to make and implement

Method used

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  • Method for content delivery involving a policy database
  • Method for content delivery involving a policy database
  • Method for content delivery involving a policy database

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0053] figure 1 An example of the content delivery network CDN 100 is illustrated. The CDN 100 includes four content servers 111, 112, 113, and 114 in this example. These content servers 111-114 are interconnected through a network including several routers or switches 121, 122, and 123. In the content server 111, a media file 1111 is stored. The media file 1111 can be accessed by seven different clients 131-135, 520, 620 in this example. Since most clients are located closer to the server 112 than the server 111, it is worth considering moving the content, that is, the media file 1111 from the server 111 to the server 112. Closer here may be a distance based on the network, such as the number of node hops between the server 111, 112 and the client 131. By moving the content closer to the clients 133-135 and 620, the transmission resources in the network 100 will be saved, there will be lower latency, and the response time will be faster.

[0054] In the known prior art, the ...

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PUM

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Abstract

The present invention comprises a content delivery system (510) for delivering content to clients (628, 660). The content delivery system (510) comprises at least one mobile object (512) adapted to be executed on the content delivery system (510) and on other content delivery systems (520) or multimedia devices (620) adapted for mobile objects. Each mobile object (512) comprises a media file (513) and is further adapted to determine the capabilities of the other content delivery systems (520) or multimedia devices (620) and to monitor data related to the clients' (628, 660) access of the media file (513). The content delivery system (510) also comprises a transcoder unit (519) for transcoding the media file (513) to another media file (523) prior sending it to the other content delivery system (520) or multimedia device (620). The invention solves problems that can arise when sending large media files to content delivery systems (520) or multimedia devices (620) having limited capabilities.

Description

Technical field [0001] The present invention relates to a method and system for content delivery. Background technique [0002] A content delivery network (content delivery network) or content delivery network (CDN) is a system of computers (such as content servers) networked together on the Internet and delivers content (especially media content) to clients. Content delivery networks are difficult to control and manage because requests for content come from different locations that sometimes follow certain viewing patterns. In order to optimize performance, you can choose the location of the content server and media content close to the client. Many parameters must be considered to optimize media delivery in the content delivery network, such as: [0003] -Number of content servers [0004] -Location of client and content server [0005] -Location of useful resources (media content) [0006] -Popularity of useful resources [0007] -Available bandwidth in the network [0008] -The co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
CPCH04L29/08459H04L65/602H04L29/08783H04L29/06489H04L29/08756H04L29/06537H04L29/08306H04L67/1076H04L69/24H04L67/104H04L65/762H04L67/565H04L67/5651H04L65/756
Inventor P·卡尔森V·索扎
Owner TELEFON AB LM ERICSSON (PUBL)
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