With the development of inflight internet, satellite communication for aircraft has given growing attention. It leads to the emergence of the terms such as SBB, Ku, 2Ku, Ka, and HTS, with hot news such as “using Weibo and watching Spring Festival Gala in the air“ and “inflight internet access”. Accordingly, aircraft-used satellite communication will cover the last blind spot of mobile internet services – the aircraft cabin. It enables internet access at an altitude of thousands of metres, and relieves the passengers from boredom during the flight with online entertainment, shopping and communication.

The aircraft-used satellite communication system is an important carrier of satellite communications. The system is composed of a sub-satellite system, a space segmentation system for geostationary orbit communication satellites, and a ground gateway system. It applies a star-mesh network and dynamic-on-demand channel allocation. The wireless Wi-Fi communication in the cabin suits IEEE802.11 protocol and applies the VSAT/HTS network technology of geostationary satellite communications and Ku/Ka frequency on the way of achieving a direct network connection between the civil aircraft and the ground.