5G SA的网络架构和关键技术

The Network Architecture and Key Technologies of 5G SA

SA是5G网络演进的目标架构,当前处于商用准备阶段。由于5GSA采用全新的服务化架构、虚拟化部署,是网络架构的深刻变革,在网络部署、运营、业务模式等多方面存在一系列新的问题和挑战。描述了5G SA的总体网络架构、跨区域漫游架构、4G/5G互操作架构、全国组网架构,分析和探讨了5GC网元实现、虚拟化部署、网络切片与切片管理、边缘计算、语音、智慧运营等方面的架构、方案和关键技术。

SA is the target architecture of 5G network evolution and is in the preparation stage for commercial deployment. Due to the innovative service-oriented architecture and virtualized deployment, 5G SA requires profound changes of network architecture and brings a series of problems and challenges in network deployment, operations and service modes. This paper describes the overall architectures of 5G SA, and cross-region roaming architectures, 4G/5G interoperability architectures, and national networking architectures. Furthermore, it analyzes and discusses the architectures, solutions and key technologies in terms of 5GC network element implementation, virtualized deployment, network slicing and management, edge computing, voice, and intelligent operations.