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System and method for seamless service provision of mobile video live broadcast vehicle in ndn network

A technology of live video and mobile video, applied in the field of computer network, can solve the problem of unable to support the mobility of content source, and achieve the effect of reducing control flow

Active Publication Date: 2017-12-08
COMP NETWORK INFORMATION CENT CHINESE ACADEMY OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This mechanism is a solution for user mobility and cannot support the mobility of content sources

Method used

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  • System and method for seamless service provision of mobile video live broadcast vehicle in ndn network
  • System and method for seamless service provision of mobile video live broadcast vehicle in ndn network
  • System and method for seamless service provision of mobile video live broadcast vehicle in ndn network

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Embodiment Construction

[0038] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described below through specific embodiments and accompanying drawings.

[0039] The purpose of this method is to make the NDNC calculate the position where the TTV will move and update the FIB table of the relevant NDNN in advance, so as to achieve the purpose of TTV seamless switching.

[0040] figure 1 The main structure of the whole scheme is described. Among them, 1 is CO, 2 is NDNN, 3 is AP, 4 is TTV, 5 is NDNC, 6 is the transmission link between CO and NDNN or AP and NDNN or NDNN and NDNN, 7 is the control between NDNN and NDNC Link 8 is the wireless transmission link between TTV and NDNN, and 9 is the moving track of TTV. As shown in the figure, any information sent by CO and TTV will first pass through their connected NDNN, and then be forwarded by NDNN. TTV is mobile, and when it enters the cross-coverag...

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Abstract

The invention relates to a system and method for seamlessly providing services in a mobile video live vehicle in an NDN. The system comprises an NDN controller, NDN nodes, the video live vehicle, a content requester and access points. The video live vehicle walks in the whole network topology range, and is used for receiving Interest packages, sending Data packages and sending MoveInfo packages comprising mobile information to the NDN network controller during access point switching. The content requester sends the Interest packages and receives the Data packages. The NDN controller is used for calculating forwarding outlets of the nodes in the network again according to a new NDN node to be connected when the video live vehicle switches the access points, and the Interest packages in the network are accurately forwarded to the video live vehicle. The round-trip-delay of the request response can be effectively shortened, the control flow is reduced, and the user experience is improved.

Description

technical field [0001] The patent application of the present invention belongs to the field of computer networks, and in particular relates to a system and method for seamlessly providing services by mobile video live broadcast vehicles in a named data network (NDN). Background technique [0002] With the widespread deployment of 3G / 4G / LTE base stations and wireless hotspots and the rapid development of wireless communication technology, mobile devices can not only connect to the Internet anytime and anywhere, but also communicate with other devices on the Internet has become more and more convenient. Therefore, the mobile device can not only serve as a user acquiring content, but also has the ability to provide services as a content provider (ContentProvider, CP). The live video car is a typical mobile CP. [0003] As a CP, the video live broadcast car will have many problems. For example, due to movement, the live broadcast vehicle will switch wireless access points when...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/61H04N21/643H04N21/414
CPCH04N21/41407H04N21/6131H04N21/6181H04N21/643
Inventor 吴玉磊葛敬国鄂跃鹏王绍节弭伟游军玲李佟
Owner COMP NETWORK INFORMATION CENT CHINESE ACADEMY OF SCI
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