Wireless frame structure based on indoor visible light networking system

A wireless frame, visible light technology, applied in the field of visible light communication, can solve the problems of inter-cell interference and affecting the quality of service of mobile users

Pending Publication Date: 2022-08-09
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

LED lighting often covers a small area and needs to be deployed densely to ensure uniform lighting and seamless coverage of communication. On the one hand, this improves the communication rate per unit area, but at the same time inevitably leads to interference between cells, and ultimately affects Quality of Service for Mobile Subscribers

Method used

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  • Wireless frame structure based on indoor visible light networking system
  • Wireless frame structure based on indoor visible light networking system
  • Wireless frame structure based on indoor visible light networking system

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Embodiment Construction

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Traditionally, there are generally two schemes for coordinating inter-cell interference. One is the distributed coordination scheme, that is, the visible light access points coordinate the interference through the CSMA / CA protocol, and the other is the centralized control scheme, such as using multiple access such as TDMA. scheme, the access controller coordinates the interference uniformly.

[0023] For the distributed scheme,...

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Abstract

The invention provides a wireless frame structure based on an indoor visible light networking system, the visible light networking wireless frame structure comprises a broadcast period and a data period, each of the broadcast period and the data period comprises a plurality of time slots, and data of the time slots comprises a clock sequence, a synchronization frame header and one or more data fragments. The wireless frame structure is applied to each optical access point in a centralized visible light networking system, and an access controller provides synchronization information for the optical access points and coordinates time slots of the optical access points. The wireless frame structure design provides a parameter determination method, and aims to improve the utilization efficiency of time slot resources and reduce the probability of signal interference between cells.

Description

technical field [0001] The invention relates to the technical field of visible light communication, in particular to a wireless frame structure based on an indoor visible light networking system. Background technique [0002] The current society is in the era of information explosion. With the popularization of virtual augmented reality and Internet of Things technology, limited by limited spectrum resources, the current indoor wireless communication technology faces more and more obvious bottlenecks in communication rate, especially For the situation of dense indoor communication, the traditional wireless communication method is facing enormous pressure. In recent years, visible light communication technology has attracted widespread attention due to its abundant unlicensed spectrum resources. It has low implementation cost and good directionality. It is very suitable for indoor short-distance transmission scenarios, taking into account lighting and communication at the sam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/116H04W72/04H04L25/03
CPCH04B10/116H04W72/0446H04L25/03012Y02D30/70
Inventor 金显庆郭德文金美玉龚晨徐正元
Owner UNIV OF SCI & TECH OF CHINA
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