Key technologies and applications of satellite Internet of Things

With the completion of the construction of the TT-1 satellite mobile communication system and the formal commercial, China's satellite mobile communication system has opened a new chapter of independent construction and operation. TT-1 satellite mobile communication system has been transformed and upgraded on the basis of basic services such as voice, SMS, fax, and low-speed packet data, and has increased satellite Internet of Things(IoT) business capabilities. This paper focuses on the introduction of the application characteristics, key technologies and application prospects of the TT-1 satellite IoT system.