One content distribution method and system and a FIWI node device

A node device and content technology, applied in the network field, can solve the problems of increasing core network load pressure, increasing video delay, etc., and achieve the effects of reducing core network traffic, avoiding load pressure, reducing overhead and transmission delay

Active Publication Date: 2019-06-18
BEIJING UNIV OF POSTS & TELECOMM
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  • 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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  • One content distribution method and system and a FIWI node device
  • One content distribution method and system and a FIWI node device
  • One content distribution method and system and a FIWI node device

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Embodiment Construction

[0023] The above content 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 content 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.

[0024] In order to meet users' demands 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 an...

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Abstract

The invention discloses a content distribution method and system and a FiWi node device. The method includes: caching content on each FiWi node in the optical and wireless FiWi fusion network; wherein, the content can be transmitted between each FiWi node through an optical fiber link, reducing core network traffic. When a current FiWi node receives a content request sent by a terminal device that wirelessly accesses the current FiWi node: if the current FiWi node caches the content requested by the user, the current FiWi node sends the content requested by the user cached by itself to all If the content requested by the user is not cached on the current FiWi node, the current FiWi node obtains the content requested by the user from other FiWi nodes through the centralized control scheduling of the controller and sends it to the terminal device, avoiding mutual exchange with other nodes information, thereby reducing the overhead of node equipment and transmission delay.

Description

technical field [0001] The present invention relates to the field of network technology, in particular to a content distribution method, a FiWi node device and a content distribution system. 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 delivery network (CDN, Content Delivery Network) is one of the widely used caching technologie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08
CPCH04L67/56H04L67/60
Inventor 寿国础刘晶胡怡红郭志刚
Owner BEIJING UNIV OF POSTS & TELECOMM
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