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A handover method for a short-distance wireless optical communication system

A wireless optical communication, short-distance technology, applied in the field of wireless optical communication

Active Publication Date: 2020-11-03
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, provide a handover algorithm of a short-distance wireless industrial communication system, and solve the problems of signal handover and guarantee channel transmission quality in mobile communication

Method used

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  • A handover method for a short-distance wireless optical communication system
  • A handover method for a short-distance wireless optical communication system
  • A handover method for a short-distance wireless optical communication system

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Embodiment Construction

[0021] The specific implementation of the present invention will be further described in detail below in conjunction with the accompanying drawings of the embodiments, so as to make the technical solution of the present invention easier to understand and grasp, so as to define and support the protection scope of the present invention more clearly.

[0022] The present invention is suitable for short-distance wireless optical communication scenarios and proposes a switching algorithm based on the visible light communication technology currently researched at home and abroad. It enables continuity of mobile services and guarantees communication quality when moving back and forth between network nodes.

[0023] The transceiver system of the present invention adopts the visible light communication system, but it is not limited to this system in actual implementation, and all communication systems using light intensity modulation can adopt the switching algorithm of the present inve...

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Abstract

The invention discloses a handover algorithm of a short-range wireless optical communication system, which is suitable for short-range wireless optical communication. Based on the visible light communication technology,the communication in conventional visible light communication network is achieved by the LED lighting equipment, and the LED lighting coverage limits the normal communication only in the coverage of a certain light intensity. In general scenarios, users are often in the mobile state, in different LED illumination coverage the continuity of communication is particularly important. The invention realizes the function of keeping communication when the user moves in the visible light communication scene, and the communication quality is reliably ensured based on the user terminal defining the acquisition rate of the acquired energy and setting the judgment rule facing the network access point AP.

Description

technical field [0001] The invention belongs to the field of wireless optical communication, is applicable to short-distance wireless communication scenarios, and relates to an algorithm capable of switching within different network access coverage ranges. Background technique [0002] At present, the research on visible light communication technology has attracted much attention at home and abroad. Among them, the United States, Japan, Germany and other countries are committed to the research of high-speed modulation, and research groups such as Fudan University have also realized Gbps-level high-speed visible light communication systems. With the improvement of system speed, the application of visible light communication technology has more market prospects, and there are already experimental cases of applying visible light communication technology in transportation systems. With the continuous research of this technology, the problems faced are becoming more and more comp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00H04W36/08H04W36/18H04W36/30
CPCH04W36/0055H04W36/0083H04W36/08H04W36/18H04W36/30
Inventor 洪文昕许嘉琪王炯乾宋官泽
Owner NANJING UNIV OF POSTS & TELECOMM
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