Solution:
At present, the 5G networks currently in the world and under construction are all NSA networks. NSA networks and SA networks will co-exist for a long time to come. By then, NSA networks will continue to provide 5G services for a long time. NSA single-mode mobile phones will still be available. Enjoy the extremely fast experience brought by 5G. If worried about the future usage scenarios of NSA single-mode mobile phones, it is recommended to purchase SA / NSA dual-mode mobile phones to prepare for the future development of 5G.