SATELLITE IoT SYSTEM, AIR COMMUNICATION NODE, AND METHOD FOR PROCESSING DATA IN SATELLITE IoT SYSTEM

An air communication node, comprising:

• a communication module;
• a memory;
• and
• a processor connected to the communication module and the memory,
• wherein the processor receives an echo signal through the communication module, estimates terrestrial-air channel state information based on the echo signal, collects sensor data based on the estimated channel state information, classifies processable sensor data and unprocessable sensor data based on the collected sensor data, offloads the unprocessable sensor data to a satellite through the communication module, processes the processable sensor data, and receives data processed by the satellite.

A method of processing data in a satellite Internet on things (IoT) system, comprising:

• transmitting, by each of a plurality of IoT terminals, pilot data and sensor data;
• receiving, by an air communication node, an echo signal for the pilot data and estimating terrestrial-air channel state information based on the echo signal;
• collecting, by the air communication node, sensor data based on the estimated channel state information;
• classifying, by the air communication node, the collected sensor data into processable sensor data and unprocessable sensor data;
• and
• offloading, by the air communication node, the unprocessable sensor data to a satellite.