Operators collect user data by deploying DPI system at some network node
and combining with the security control system to achieve an operator-level security operation and management system.The new architecture
technologies and services of the 5G network meet the unprecedented demands of connection
but also bring new security risks.The evolution of the data collection scheme of the carrier network was mainly discussed under the background of 5G network
as well as the innovative ideas of content security and network security systems that follow.
ZHANG Y J , WANG Y , XIE J , et al . Analysis on security of 5G network and suggestions for security scheme [J ] . Information and Communication Technology and Policy , 2020 ( 4 ): 4 - 6 .