1results about How to "Avoid communication interruption" patented technology

The application discloses a gateway and a switching method for low-orbit satellite IoT-NTN and 4G cellular network fusion communication, and the gateway comprises a main control module, a 4G communication module, a low-orbit satellite IoT-NTN communication module, a power management module and the like. The 4G module and the satellite module are independent of each other and are uniformly scheduled by the main control module. In the switching mode, the main control module constructs an adaptive switching decision model based on a double-link packet loss rate: when the 4G network packet loss rate exceeds a first threshold value, and the difference between the 4G and satellite network packet loss rates in a plurality of continuous detection periods is greater than a second threshold value, and the minimum switching interval is met, the satellite network is switched to; when the satellite network is working, if the 4G network quality is restored and the minimum network staying time is met, the 4G network is switched back. Through the double-link cooperation and the intelligent switching mechanism based on the packet loss rate difference and the time constraint, the application solves the problem that the communication continuity and the cost control are difficult to be considered in the Internet of Things scene, and realizes the low-power, low-frequency and high-reliable dual-mode communication.