Abstract:

User data management has experienced the evolution of 2G/3G and 4G era.At present,as a triple integration HLR/HSS service for mobile 2G/3G/4G/VoLTE users,contract data storage and authentication management,with the advent of 5G,5GC introduces cloud-based micro-service architecture UDM/UDR user data management network element,how to realize the evolution deployment of existing HSS and UDM,and how to realize the timely signing of 5G users to guarantee the 5GC business process urgently need to be studied.How to realize the evolution deployment of 5G user data to the four-fused HSS/UDM architecture based on the strategy of no-change card and no-change trademark commercial 5G market,and how to realize the smooth migration of 2G/4G user data to 5G user data at the same time was mainly researched.Finally,four HSS/UDM evolution schemes were presented and the rhythm of cloud migration was proposed.

Key words: 5GC, UDM, HSS, user data