An information center network system and video transmission method

An information center network and video block technology, which is applied in the field of network video transmission, can solve the problems of incompatibility between routing and caching protocols and the information center network architecture, and increase the complexity of new network architecture design, so as to achieve control and optimization, reduce System overhead, congestion relief effect

Active Publication Date: 2020-05-19
HUAZHONG UNIV OF SCI & TECH
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

This increases the complexity of designing new network architectures
Second, the existing routing and caching protocols are not compatible with the information center network architecture

Method used

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  • An information center network system and video transmission method
  • An information center network system and video transmission method
  • An information center network system and video transmission method

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Embodiment Construction

[0052] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0053] Traditional network streaming media technology is based on IP architecture, that is, the video blocks corresponding to video files are stored in the server or database of the content provider. When users request video content from the network, they need to know the address of the server where the video content is located. Therefore, reasons such as the long physical distance between the c...

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Abstract

The invention discloses an information center network system and a video transmission method. Each node in the system comprises a control layer, a transmission layer and a local cache; each control layer comprises a counting module and a control module which are connected with each other, wherein the counting module is used for counting link states and request information, and the control module is used for determining a pushing path for pushing an actual interest request packet to a downstream node and updating an updating strategy of the local cache of the current node; and each transmissionlayer comprises a video block transmission module, a request packet pushing module and a local cache updating module, wherein the video block transmission module is used for returning a requested video block to an upstream node when the video block hits the local cache or turning a video block reaching the local node to the upstream node, the request packet pushing module is used for pushing theactual interest request packet to the downstream node, and the local cache updating module is used for regularly updating the local cache of the current node. Accordingly, the total user request ratecan be maximized, and the user experience can be improved.

Description

technical field [0001] The invention belongs to the field of network video transmission, and more specifically relates to an information center network system and a video transmission method. Background technique [0002] According to statistics, the amount of data generated by mobile devices increased nearly 25 times between 2011 and 2017, of which video traffic accounted for more than 70%. In addition, the mass video data generated by a large number of network video devices (cameras, monitoring devices, etc.) has had a huge impact on the core network. It means that the core network needs a higher transmission rate to match it. However, simply increasing the link bandwidth cannot fundamentally improve the data carrying capacity of the core network. [0003] Information-centric network (ICN), as a new network architecture based on information content entity (NDO), eliminates the concept of IP address and the client-server information transmission mode, and all nodes in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/2183H04N21/234H04N21/238H04N21/239H04N21/262H04N21/654
CPCH04N21/2183H04N21/23406H04N21/238H04N21/23805H04N21/2393H04N21/26291H04N21/654
Inventor 罗晶晶贾日恒喻莉文朝埻
Owner HUAZHONG UNIV OF SCI & TECH
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