To provide a system that can increase the capacity of a feeder link in a LoS environment between a relay station mounted on a communication relay device in the sky and a GW station.SOLUTION: A system comprises: a communication relay device in which a relay station using a non-regenerative relay method is mounted on a flying body or floating body located in the sky; and a gateway station which is located on the ground or sea to communicate with the communication relay device via a feeder link. The system relays communication between a user device and a base station device. The gateway station performs wireless communication of the feeder link in the MIMO transmission method using feeder link frequencies in a first frequency band with the relay station via an array antenna for feeder link. The relay station performs wireless communication of the feeder link in the MIMO transmission method using feeder link frequencies in the first frequency band with the gateway station via the array antenna for feeder link.SELECTED DRAWING: Figure 1
【課題】上空の通信中継装置に搭載された中継局とGW局との間のLoS環境でのフィーダリンクの大容量化を図ることができるシステムを提供する。【解決手段】システムは、上空に位置する飛行体又は浮揚体に非再生中継方式の中継局が搭載された通信中継装置と、通信中継装置とフィーダリンクの通信を行う地上又は海上のゲートウェイ局とを備え、ユーザ装置と基地局装置との通信を中継する。ゲートウェイ局は、フィーダリンク用アレイアンテナを介して、中継局との間で、第1周波数帯のフィーダリンク用周波数を用いるMIMO伝送方式でフィーダリンクの無線通信を行う。中継局は、フィーダリンク用アレイアンテナを介して、ゲートウェイ局との間で、第1周波数帯のフィーダリンク用周波数を用いる前記MIMO伝送方式でフィーダリンクの無線通信を行う。【選択図】図1
SYSTEM FOR RELAYING COMMUNICATION
通信を中継するシステム
2025-01-09
Patent
Electronic Resource
Japanese
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