公开(公告)号：US11240750B2

公开(公告)日：2022-02-01

申请号：US17054865

申请日：2019-05-22

申请人： NEC Corporation

发明人： Masami Yabe

IPC分类号： H04W52/02 ,  H02J9/06 ,  H04W24/08

摘要： A radio transmission apparatus (1) includes a first radio communication unit (2A) for performing radio communication in accordance with a predetermined radio communication scheme, a second radio communication unit (2B) for performing radio communication by LPWA (Low Power Wide Area) communication, a control unit (3) for controlling a predetermined device provided in a station accommodating the radio transmission apparatus (1) or the radio transmission apparatus (1) based on a signal received by the second radio communication unit (2B), a power supply unit (4) for supplying power to the first radio communication unit (2A), the second radio communication unit (2B), and the control unit (3), and a storage battery (5) for supplying power to the second radio communication unit (2B) and the control unit (3) when an abnormality occurs in the power supply unit (4).