Mobile Core Network User Data Management System Research And Application

With the rapid development of mobile communication, the number of core network users growing fast, communication system for each network element data access rates have become increasingly demanding. UDM is short for the user data management system in mobile core network, it is the core network common data center of mobile which involved in the circuit switching core network domain (CS domain), packet switched domain (PS domain), IP Multimedia Core Network Subsystem (IMS) network, and its main function is to help Operators manage all user-related data, reduce operating costs, and in accordance with the user information to develop new value-added services and business models. User data management system is to parse out user data from the core network element, sending these data to a logical network directory server for applications of the network elements.This paper give an outline of the core network for mobile communication systems, elaborated important position and role of user data management system in mobile communication networks, describes the hardware architecture platform, and analyzes the system software design and architecture. This paper introduces the designation and performance analysis of platform middleware subsystem, proposed the subsystems adaptation method, give a designation of structure and function of each module, followed by udmcom module implementation platform middleware adaptation layer adaptation methods of analysis and design. This paper shows the user interaction module functional designation, and sub-block data structure and function of the design and its implementation. On this basis, the paper do command module innovation, achieve a dynamic library to add and delete commands, allowing users to dynamically adding and deleting commands during normal system operations, and enhanced dynamic debugging analysis capabilities of the system.Focus on the UDM common problems, the paper propose solutions maintainability, gives ways to solve the problem from the device running track, field exception information, the system running snapshot, etc., and finally to solve the problem of system efficiency improved. Moreover, the paper do user interaction function module test, and do the system stability and reliability test.