Handover method and system for high-speed mobile ground-air broadband communication

Abstract

An aircraft communication apparatus for communication between an airborne aircraft and a ground based station, wherein the aircraft communication apparatus comprises a radio frequency frontend apparatus, a processor connected to the radio frequency frontend apparatus and machine readable instructions executable by the processor to operate the radio frequency frontend apparatus and to cause switching of communication from between the aircraft and a first ground based station to between the aircraft and a second ground based station, wherein the aircraft is in communication with the first ground based station and is preparing to switch to communicate with the second ground bases station in place of the first ground based station; and wherein the processor is to determine whether to switch to communication with the second ground based station depending on the outcome of signal quality measurements on signals received by the aircraft from the second ground based station; and evaluation on change of flight posture of the aircraft.

Description

technical field [0001] The invention relates to the field of wireless broadband ground-air communication and aviation information management, in particular to a system and a handover method for realizing wireless ground-air communication switching and high-bandwidth communication. Background technique [0002] With the development of mobile communication technology, people are not only satisfied with terrestrial communication, but communication services have increasingly prominent requirements for other occasions such as airspace coverage. How to apply the mobile communication technology in the aviation system and realize the broadband ground-air communication business has become the focus of research at home and abroad. And how to solve the handover problem of the high-speed mobile terminal during flight is the key to the broadband service of the ground-air communication system, especially the real-time service quality assurance. However, the existing terrestrial cellular ...

AI Technical Summary

Problems solved by technology

[0004] Furthermore, the terminal used in the current terrestrial communication system needs to continuously measure the signal quality of adjacent cells in the process of communicating with the current base station, so as to generate a list of candidate adjacent cell handover base stations, so that the terminal can switch to the corresponding target cell in the list in time. However, this method requires the terminal to continuously measure the channel of neighboring base stations

This method takes a long time to measure, and the calculation overhead caused by the measurement is large, so it is not suitable for the ground-air communication system with the position information and attitude information of the terminal (aircraft).

Images