Title:
COMMUNICATION METHOD, TRANSCEIVER, RELAY DEVICE, COMMUNICATION SYSTEM, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2022/180831
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a communication method, a transceiver, a relay device, a communication system, and a program, which can perform high-speed communication between two distant points underwater even if an obstacle is present between the points. In this communication method, the positions of counterparts are determined using acoustic communication, which uses a sound wave that has a relatively small frequency and large wavelength and is therefore likely to diffract as a wave. Since this communication method uses optical wireless communication that has high straightness but enables high-speed communication, a path is calculated such that communication can be performed via a relay device to avoid an obstacle. In this communication method, a relay device is guided and moved to an appropriate location in accordance with the calculated path, and signals are transmitted and received using optical wireless communication via the relay device moved to the appropriate location.
Inventors:
NARIKAWA SATOSHI (JP)
FUJIWARA TOSHIHITO (JP)
ONO HIROYA (JP)
FUJIWARA TOSHIHITO (JP)
ONO HIROYA (JP)
Application Number:
PCT/JP2021/007515
Publication Date:
September 01, 2022
Filing Date:
February 26, 2021
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04B11/00; H04B10/80; H04B13/02
Domestic Patent References:
| WO2020144858A1 | 2020-07-16 |
Foreign References:
| CN111245523A | 2020-06-05 | |||
| US7688680B1 | 2010-03-30 |
Attorney, Agent or Firm:
OKADA, Kenji et al. (JP)
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