A content distribution control method and a central controller

A central controller and control method technology, applied in the network field, can solve the problems of increasing the load pressure of the core network, increasing the video delay, etc., and achieve the effect of avoiding load pressure and mutual exchange of information

Active Publication Date: 2018-11-02
BEIJING UNIV OF POSTS & TELECOMM
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  • Description
  • Claims
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Problems solved by technology

[0004] However, when a mobile user terminal requests a network video, it needs to be obtained from the CDN server, and the video must pass through the core network and the access network before reaching the user terminal, which not only increases the video delay, but also increases the load pressure on the core network

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  • A content distribution control method and a central controller
  • A content distribution control method and a central controller
  • A content distribution control method and a central controller

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Embodiment Construction

[0036] The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, technical features and advantages of the present invention more obvious It is easy to understand that the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0037] In order to meet users' requirements for high network bandwidth, seamless coverage, and flexible access, a fiber-wireless (FiWi, Fiber-Wireless) converged network emerges as the times require. FiWi network is a networking solution that integrates optical access and wireless access. It combines the high bandwidth of optical fiber access and the high flexibility of wireless access. It has strong anti-electromagnetic interference capa...

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Abstract

The invention discloses a content distribution control method and a central controller. The method includes: each FiWi node in the optical and wireless FiWi fusion network can transmit content through an optical fiber link; when the current FiWi node does not cache the content requested by the user, the controller finds that the content is cached according to the cache list uploaded by each FiWi node Select a FiWi node from the other two or more FiWi nodes according to the principle of minimum transmission delay and cost, redirect the request sent by the user to the selected FiWi node, and send the corresponding flow table to the selected FiWi node and the current FiWi node , so that the selected FiWi node sends the cached content to the current FiWi node through the optical fiber link, and then the current FiWi node sends it to the terminal device, which avoids the exchange of information between the current node and other nodes, thereby reducing the cost of the node device and minimize the transmission delay.

Description

technical field [0001] The invention relates to the field of network technology, in particular to a content distribution control method and a central controller. Background technique [0002] With the development of broadband networks and mobile Internet and the widespread use of mobile smart terminals, users' demand for content distribution services such as videos has increased dramatically. Explosive global mobile traffic is putting heavy pressure on network capacity. Studies have shown that most of the mobile traffic in the network is the repeated transmission of the same content (especially high-definition video) requested by users, resulting in a large amount of redundant traffic. [0003] Deploying cache at the edge of the network is an effective solution to reduce redundant network traffic and relieve network load pressure. The existing content distribution network CDN (Content Delivery Network) is one of the widely used caching technologies. The CDN caching server ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L29/06H04L29/08
CPCH04L41/0893H04L65/60H04L67/1078H04L67/1001H04L67/568
Inventor 刘晶胡怡红寿国础郭志刚
Owner BEIJING UNIV OF POSTS & TELECOMM
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