Solution:
There is some public opinion that NSA is a fake 5G, and SA is a true 5G. This is a misinterpretation of the global 5G development trend. 5G development is not completed in one step. At present, the existing and under construction 5G networks in the world are 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 can still enjoy the extremely fast experience brought by 5G.