Mobility management in 5G and 6G satellite access networks

With the rapid advancement of global satellite communications, the integration of terrestrial and satellite communication has emerged as a focal point in the telecommunications field. The development of integrated space-ground networks represents a significant trend for the future of networking, presenting substantial challenges in mobility management for integrated ground-satellite networks. We propose several scenarios involving mobility management in path switching, approached from three distinct angles: Path Switching Modes, Terminal Communication Methods, and Connection Methods. These scenarios are designed to support seamless connectivity for users moving between different networks, especially in high-speed mobility contexts. The implementation of these schemes not only enhances connectivity in remote areas but also improves the overall reliability and resilience of the network through smooth transitions between terrestrial and satellite networks.