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A method and device for prefetching on-demand program information in a CDN network

A program information and prefetching technology, applied in the computer field, can solve problems such as high bandwidth utilization, idle bandwidth, and insufficient dedicated lines, and achieve the effects of improving bandwidth resource utilization, improving on-demand efficiency, and improving bandwidth utilization

Active Publication Date: 2018-09-18
百视通网络电视技术发展有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the peak period, there will be a large number of back-to-source requests, and the utilization rate of the bandwidth is very high, which may even lead to insufficient dedicated lines; while during the trough period, the bandwidth is basically idle

Method used

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  • A method and device for prefetching on-demand program information in a CDN network
  • A method and device for prefetching on-demand program information in a CDN network

Examples

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0022] In a typical configuration of the present application, the terminal, the device serving the network and the trusted party all include one or more processors (CPUs), input / output interfaces, network interfaces and memory.

[0023] Memory may include non-permanent storage in computer readable media, in the form of random access memory (RAM) and / or nonvolatile memory such as read only memory (ROM) or flash RAM. Memory is an example of computer readable media.

[0024] Computer-readable media, including both permanent and non-permanent, removable and non-removable media, can be implemented by any method or technology for storage of information. Information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static rando...

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Abstract

The invention aims at providing a method and device for pre-fetching requested program information in CDN (Content Delivery Network) network. The method comprises the following steps: determining a corresponding first-level M3U8 document according to the requested program information to be pre-fetched; determining a corresponding second-level M3U8 document according to the first-level M3U8 document; downloading the requested program information from a CDN source node to a CDN service node according to the second-level M3U8 document, so as to meet the requirements on subsequent related programs on demand. Compared with the prior art, the method and device have the advantages that the utilization rate of bandwidth source is raised, the program interviewing experience of a user is improved; as a set top box accesses the last updated program information through the edge CDN service node, the program information appears in the edge CDN service node, returning to the source to reach a central CDN service node is not needed, and thus the efficiency of requesting the broadcasting is improved.

Description

technical field [0001] The invention relates to the computer field, in particular to a technology for prefetching program information on demand in a CDN network. Background technique [0002] Prefetching is based on the fact that when content service providers and network operators build content delivery platforms (CDN, ContentDelivery Network), they integrate prefetch modules through CDN nodes that provide user services and prefetch the content in the source CDN nodes in advance in the way of returning to the source. program content. [0003] The fundamental mechanism of returning to the source is the request and response mode, which is driven by the user's on-demand request. Therefore, how to use the back-to-source bandwidth is driven by human behavior. If there is no on-demand, there will be no back-to-source, and the line will not be used. The current method of returning content to the source without a prefetch strategy does not make full use of line resources. For ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/61H04N21/222H04N21/438H04L29/08
Inventor 章德志肖友能黎文黄思钧
Owner 百视通网络电视技术发展有限责任公司
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