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VLC-WiFi hybrid network user link access and switching method

A hybrid network and user link technology, applied in the field of VLC-WiFi hybrid network user link access and switching, can solve problems such as lack of a relatively complete solution, and achieve the goal of improving capacity and speed, ensuring service quality, and good communication links Effect

Inactive Publication Date: 2017-01-11
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] Considering the locality of the VLC coverage area in the VLC-WiFi network and the mobility of users, a solution is needed to control user access and realize link switching when users move, so as to ensure user access and link stability; however, there is no perfect solution

Method used

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  • VLC-WiFi hybrid network user link access and switching method
  • VLC-WiFi hybrid network user link access and switching method
  • VLC-WiFi hybrid network user link access and switching method

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Embodiment Construction

[0037]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 some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] The embodiment of the present invention provides a method for user link access and switching of a VLC-WiFi hybrid network; the VLC-WiFi hybrid network system model is as follows figure 1 As shown, the system model mainly includes three kinds of areas: 1-non-VLC coverage area, 2-VLC cell coverage area and 3-VLC cell overlapping area.

[0039] The purpose of the present invention is to ensure that the user terminal can accurately access the cor...

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Abstract

The invention discloses a VLC-WiFi hybrid network user link access and switching method. The method comprises the steps that during an initial stage, a user terminal applies a WiFi access uplink for a server; then, the user terminal applies a WiFi access downlink or a VLC downlink for the server according to a region in which the user terminal is located; and, the user terminal judges whether downlink switching is carried out or not according to whether a user terminal carrier can receive VLC data or not when moving among different regions, and / or the accuracy of receiving the VLC data. According to the method, the access of a user in a VLC-WiFi hybrid network is realized and the mobility of the user can be supported, so that the moving user also can obtain a relatively good communication link, the network capacity and speed are expanded and increased, and the service quality of the VLC-WiFi hybrid network is ensured.

Description

technical field [0001] The present invention relates to the technical field of visible light communication, in particular to a method for user link access and switching in a VLC-WiFi hybrid network. Background technique [0002] VLC (Visible Light Communicaiton, visible light communication) technology refers to a communication method that uses light in the visible light band as an information carrier and directly transmits optical signals in the air without transmission media such as optical fibers. As demand for data services continues to grow, wireless networks continue to increase the capacity and spectral efficiency they can deliver. However, due to limited spectrum resources and most of the spectrum has been licensed, wireless frequency bands are becoming more and more crowded. As an emerging wireless communication technology, VLC has high hopes. VLC uses extremely rich unlicensed spectrum resources and can provide very high-speed communication links while providing n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/116H04W84/12H04W36/14
CPCH04B10/116H04W36/14H04W84/12
Inventor 武启尧陈力陈晓辉王卫东
Owner UNIV OF SCI & TECH OF CHINA
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