As outlined in the 3Gpp Release 16, 5G satellite access is important for 5G network\ndevelopment in the future. A terrestrial-satellite network integrated with 5G has the characteristics\nof low delay, high bandwidth, and ubiquitous coverage. A few researchers have proposed integrated\nschemes for such a network; however, these schemes do not consider the possibility of achieving\noptimization of the delay characteristic by changing the computing mode of the 5G satellite network.\nWe propose a 5G satellite edge computing framework (5GsatEC), which aims to reduce delay and\nexpand network coverage. This framework consists of embedded hardware platforms and edge\ncomputing microservices in satellites. To increase the flexibility of the framework in complex scenarios,\nwe unify the resource management of the central processing unit (CPU), graphics processing unit\n(GPU), and field-programmable gate array (FPGA); we divide the services into three types: system\nservices, basic services, and user services. In order to verify the performance of the framework, we\ncarried out a series of experiments. The results show that 5GsatEC has a broader coverage than the\nground 5G network. The results also show that 5GsatEC has lower delay, a lower packet loss rate,\nand lower bandwidth consumption than the 5G satellite network.
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