To provide a radio relay system that achieves even in mountains and forests a longer relay distance between a fixed base station and a master unit and between the master unit and a slave unit to ensure a targeted coverage for radio communication in an out of coverage area of the fixed base station.SOLUTION: The system comprises a first radio relay station that can communicate with a fixed base station via radio and is mounted on a floating body capable of staying in midair and a second radio relay station that is mounted on a flying craft capable of staying in midair within a coverage for radio communication with the first radio relay station and relays radio communication between the first radio relay station and a user device.SELECTED DRAWING: Figure 1
【課題】山岳や山林などの場所においても、固定基地局と親機との間の中継距離及び親機と子機との間の中継距離を大きくとることでき、固定基地局の圏外に位置する目標エリアに無線通信エリアを確実に構築することができる無線中継システムを提供する。【解決手段】固定基地局と無線通信可能な空中エリアに滞在可能な浮揚体に搭載された第1無線中継局と、第1無線中継局と無線通信可能な空中エリアに滞在可能な飛行体に搭載され第1無線中継局とユーザ装置との間の無線通信を中継する第2無線中継局と、を備える。【選択図】図1
RADIO RELAY SYSTEM
無線中継システム
2021-03-18
Patent
Electronic Resource
Japanese
IPC: | H04W WIRELESS COMMUNICATION NETWORKS , Drahtlose Kommunikationsnetze / B64B LIGHTER-THAN-AIR AIRCRAFT , Luftfahrzeuge leichter als Luft / B64C AEROPLANES , Flugzeuge / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen / H04B TRANSMISSION , Übertragung |