the Ministry of Industry and Information Technology officially issued a 5G commercial license
which accelerated the deployment of China’s 5G network. The 5G international standards developed by the 3GPP include non-standalone (NSA) and standalone (SA) modes. In view of the differences between the two
the basic concepts of NSA and SA were introduced. The main characteristics of the two networking modes were compared with performance
work difficulties and key points. The two routes from NSA to SA network evolution and two issues that need attention were analyzed
and the rapid growth of China’s 5G industry was pointed out. In particular
the operating companies had implemented recommendations for implementing development strategies and selecting appropriate networking architectures.