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Beam domain optical wireless communication method and system

A technology of wireless communication and beam domain, applied in the field of beam domain optical wireless communication method and system

Active Publication Date: 2019-12-10
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the number of optical transmission unit arrays restricts the number of users served at the same time, which is the bottleneck for further improvement of system performance
On the other hand, existing solutions can only adapt to one-way communication, but practical applications require two-way communication and two-way information interaction capabilities

Method used

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  • Beam domain optical wireless communication method and system
  • Beam domain optical wireless communication method and system
  • Beam domain optical wireless communication method and system

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Embodiment Construction

[0083] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0084] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0085] The invention firstly discloses a sending method and a receiving method of beam domain optical wireless communication. Considering the downlink transmission between a base station or a sending ...

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Abstract

The invention discloses a beam-domain optical wireless communication method and system. The base station is equipped with a port array and a lens for optical transmission or reception or simultaneous transmission and reception. Each optical transceiver port forms an energy-concentrated beam through the lens. The base station uses the optical transceiver port array and the lens. Generate beams in different directions to achieve multi-beam coverage or large-scale beam coverage in the communication area. The base station uses the channel state information of each user terminal to send / receive signals from multiple or a large number of user terminals, and different optical transceiver ports send / receive signals in different directions to realize simultaneous communication and two-way communication between the base station and different user terminals. The present invention removes the limitation of the number of communication user terminals by the number of optical transmission unit arrays and the limitation of one-way communication, makes full use of space resources, greatly improves spectrum efficiency, power efficiency and system capacity, and provides optical wireless communication capabilities with huge capacity, which can be used It is used to construct huge-capacity hotspot coverage, wide-area coverage and cellular optical wireless communication system.

Description

technical field [0001] The invention belongs to the field of optical antenna communication, and in particular relates to a beam domain optical wireless communication method and system. Background technique [0002] Optical wireless communication is a new type of wireless communication that has received widespread attention in recent years. The base station or sending device uses an optical sending unit, such as a light-emitting diode (LED), to load the data to be transmitted on the optical signal for transmission, and the user terminal or receiving The device uses a light receiving unit, such as a photodiode, to receive light signals to obtain information. Compared with traditional radio frequency wireless communication methods, optical wireless communication has the advantages of green environmental protection, no electromagnetic interference, energy saving, wide light source bandwidth, simple communication network, and high security. At the same time, optical wireless comm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/11H04B10/50H04L25/02
CPCH04B10/1123H04B10/616H04L5/0023H04L25/0204H04B7/0617H04B7/0673H04B7/0695H04B10/11H04B10/50H04J14/086H04L5/0005H04W72/046
Inventor 高西奇孙晨王闻今尤力卢安安仲文
Owner SOUTHEAST UNIV
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