Low Earth Orbit Satellite Network:from Satellite-Terrestrial Convergence to the Integration of Communication,Navigation and Sensing
Leveraging vast orbital resources and reducedsatellite manufacturing and launch costs,the low-orbit satellite Internet has entered a stage of vibrant development,In this paper,centered on the two important trends of satellite-terrestrial convergence and the integration of communication,navigation and remote sensing,we propose a satellite-terrestrial converged network architecture from the perspectives of access,transport,and core networks.Subsequently,we carefully analyze solutions of direct-to-handset satellite communication or typical applications of space-ground convergence,and put forth the pivotal technologiesfor direct-to-handset satellite communicationstowards the 6th generation of mobile communication network.Finally,a comprehensive discussion on the network architecture,key technologies,and potential application scenarios regarding with the integration of low-orbit satellite communication,navigation,and remote sensing is presented.
low earth orbit satellite networksatellite-terrestrial convergencethe integration of communication,navigation and sensing
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