Direct-to-handset satellite service is one of the important applications for low earth orbiting (LEO) satellite constellation systems. The overview on the main technology routes,application scenarios,and business types of satel-lite communication service for direct-to-handset was provided. The construction cost,capacity and operating income of LEO satellite constellation system were analyzed. The main applications of direct-to-handset satellite in China should focus on wide coverage and massive connections. Furthermore,there was a risk of commercial closed-loop in high traffic and broadband satellite applications. Finally,the technology trend was discussed associated with applica-tion requirements.
维普
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