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Adaptive streaming video processing system and method based on sdn and ec technologies

An adaptive streaming and video processing technology, applied in the field of network communication, can solve problems such as large delay and user QoE needs to be improved, and achieve the effect of reducing transmission delay, improving video playback experience, and avoiding redundant buffering and transmission.

Active Publication Date: 2020-10-02
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the existing technology, the CDN server is usually deployed outside the mobile network, and is still far away from the user equipment. During the video data distribution process, the data still needs to pass through the core network, so there is a problem of large delay, and the user's QoE still needs to be improved

Method used

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  • Adaptive streaming video processing system and method based on sdn and ec technologies
  • Adaptive streaming video processing system and method based on sdn and ec technologies
  • Adaptive streaming video processing system and method based on sdn and ec technologies

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Embodiment Construction

[0070] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0071] Such as figure 1 As shown, the embodiment of the present invention provides an adaptive streaming video processing system based on SDN (Software Defined Networking) and EC (Edge Computing) technologies, including multiple EC nodes and SDN controllers, where :

[0072] The EC node is used to receive the video data request message sent by the user equipment, and process the video data request message. Specifically, EC nodes are distr...

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Abstract

The embodiment of the invention provides an adaptive stream video processing system and method based on the SDN and EC technologies, and the system comprises a plurality of EC nodes and an SDN controller. The EC nodes are configured to receive video data request messages sent by user equipment, process the video data request messages, and perform information interaction with the SDN controller. The SDN controller is configured to determine the size relation between the transcoding cost and the cooperation cost based on the information interaction with the EC nodes, and control the EC nodes toreturn a DASH video segment to the user equipment; or control the EC nodes to transmit the video data request messages to the cooperative EC node, so that the cooperative EC node processes the video data request message. The system and method can reduce video transmission delay and improve user QoE.

Description

Technical field [0001] The present invention relates to the field of network communication technology, in particular to an adaptive streaming video processing system and method based on SDN and EC technology. Background technique [0002] With the rapid development of mobile Internet technology, mobile network data traffic has shown an explosive growth trend. By 2021, global mobile data traffic is expected to reach 49 exabytes per month, of which mobile video traffic will account for 78 of global mobile data traffic. %. The explosive growth of data traffic, especially video traffic, has caused huge challenges to mobile networks, requiring mobile networks to provide higher data transmission rates and lower network delays, so as to provide users with better QoE (Quality of Experience) , Service quality experience). [0003] Existing methods for increasing the data transmission rate of a mobile network usually use a DASH (Dynamic Adaptive Streaming) distribution method based on CDN ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/239H04N21/4402H04N21/647H04N21/845
CPCH04N21/2393H04N21/440236H04N21/64792H04N21/8456
Inventor 谢人超李子姝李佳贾庆民黄韬刘江刘韵洁
Owner BEIJING UNIV OF POSTS & TELECOMM