RADIO APPARATUS AND COMMUNICATION METHOD

• Main Authors: HIRANO TATSUMA, NABEYA TOSHIHISA, FURUKAWA TSUYOSHI, OGURA MIYUKI, TANDAI TOMOYA, OBATA HARUKA
• Format: Patent
• Language: English; Japanese
• Published: 10.02.2022
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

To provide a radio apparatus which prevents the deterioration of signal reception quality through a radio link.SOLUTION: According to an embodiment, the radio apparatus includes a radio unit, communicable with a first mobile station and a second mobile station, and a control unit. The control unit estimates the state of a first radio link between the first mobile station and the radio unit and the state of a second radio link between the second mobile station and the radio unit, in a first communication mode in which communication between the first mobile station and the second mobile station is performed by the radio unit, without direct communication between the first mobile station and the second mobile station. According to the states of the first and second radio links, the control unit transmits, to the first mobile station and the second mobile station using the radio unit, a first instruction for changing the first communication mode to a second communication mode, in which communication between the first mobile station and the second mobile station is performed by the radio unit at least partially through direct communication between the first mobile station and the second mobile station.SELECTED DRAWING: Figure 3 【課題】無線リンクを介した信号の受信品質が劣化することを未然に防止する無線装置を提供すること。【解決手段】実施通信形態によれば、無線装置は、第１の移動局及び第２の移動局と通信可能な無線機と、制御部とを具備する。制御部は、第１の移動局と第２の移動局との間の直接の通信を含まずに、第１の移動局と第２の移動局との通信を無線機により行う第１の通信形態のときに、第１の移動局と無線機の間の第１の無線リンクの状態と、第２の移動局と無線機の間の第２の無線リンクの状態を推定する。制御部は、第１の無線リンクの状態と第２の無線リンクの状態に応じて、第１の通信形態を、第１の移動局と第２の移動局との間の直接の通信を少なくとも一部に介して第１の移動局と第２の移動局との通信を無線機により行う第２の通信形態に変更させるための第１の指示を、無線機により、第１の移動局と第２の移動局へ送信する。【選択図】図３