US 2021/0344422 A1 · OPTICAL-RF HYBRID WIRELESS COMMUNICATION SYSTEM AND CONTROL METHOD

Abstract

The purpose of the present invention is to provide an optical/RF wireless hybrid communication system and a control method capable of solving the instability of link conditions of an RF wireless link and an optical wireless link. In the optical/RF wireless hybrid communication system and the control method according to the present invention, links for data transmission are not limited to one of an RF wireless link and an optical wireless link, the quality of link conditions is determined from signal quality received through channels of both the RF wireless link and the optical wireless link, and the distribution of data to be transmitted through the respective links is determined on the basis of the determination result. Thus, the links can be flexibly switched depending on the transmission conditions such as disturbance.

Claims8

Dependent claims

An optical/RF wireless hybrid communication system that transmits frames by using channels of an RF wireless link and an optical wireless link, comprising:

a processor;
and
a storage medium having computer program instructions stored thereon, when executed by the processor, perform to:
that forms blocks of a predetermined number of frames as one piece of data;
measures signal quality of frames transmitted through the channel of the RF wireless link and signal quality of frames transmitted through the channel of the optical wireless link;
determines, on the basis of the signal quality, a distribution ratio of the frames transmitted through the channel of the RF wireless link and the frames transmitted through the channel of the optical wireless link in the data;
and divides the data into two pieces on the basis of the distribution ratio, and distributes one frame group to the channel of the RF wireless link and the other frame group to the channel of the optical wireless link or distributes all frame groups in the data to the channel of the RF wireless link or the channel of the optical wireless link.

4 more elements

A control method for controlling an optical/RF wireless hybrid communication system the transmits data by using channels of an RF wireless link and an optical wireless link, the method executing:

a block formation procedure for forming blocks of a predetermined number of frames as one piece of data;
a signal quality measurement procedure for measuring signal quality of data transmitted through the channel of the RF wireless link and signal quality of data transmitted through the channel of the optical wireless link;
a distribution determination procedure for determining, on the basis of the signal quality measured in the signal quality measurement procedure, a distribution ratio of data transmitted through the channel of the RF wireless link and data transmitted through the channel of the optical wireless link in the data;
and a distribution procedure for dividing the data into two pieces on the basis of the distribution ratio determined by the distribution determination procedure, and distributing one frame group to the channel of the RF wireless link and the other frame group to the channel of the optical wireless link or distributing all frame groups in the data to the channel of the RF wireless link or the channel of the optical wireless link.

1 more element

Dependencies are inferred from the claim text.

Optical-rf hybrid wireless communication system and control method

Life of this patent

Optical-rf hybrid wireless communication system and control method

Life of this patent

Abstract

Claims8