5G终端NAS会话管理机制及协议测试方法研究

Research on 5G terminal NAS session management mechanism and protocol testing method

在SDN、NFV及云计算等技术驱动下,5G网络架构基于服务化、控制与转发分离,未来5G业务、终端及商业模式的多样化对会话管理有新的需求。本文对5G系统架构和协议栈进行了概述,重点研究了终端NASPDU会话管理机制,并举例说明终端协议一致性测试例的设计方法,为5G终端测试标准的制定提供参考。

Driven by technologies such as SDN, NFV and cloud computing, the 5G network architecture is based on service and has features of control and forwarding separation. The diversification of 5Gservices, terminals and business models in the future has new requirements for session management. This paper firstly introduces the 5G system architecture and protocol stack, then focuses on the terminal NAS PDU session management mechanism, and illustrates the design method of the terminal protocol conformance test case to provide reference for the development of 5G terminal test standards.