Abstract:

With the wide deployment and application of 5G technology, the sliced packet network (SPN) that carries 5G base stations has become an important cornerstone to ensure the security of 5G network. Firstly, SPN security technology is elaborated, including SPN security isolation technology and network layer security technology. The security isolation technology mainly focuses on SPN small-grain slicing security isolation, and the network layer security technology includes authentication and encryption, access control, anti-attack, and emergency recovery. Then, the application of security technology in the current SPN network of China Mobile is explained. Finally, the SPN security technology is summarized and prospected.

Key words: small granular slicing, authentication and encryption, access control, attack prevention, emergency recovery