5G信令组网架构增强演进

Enhanced Evolution of 5G Signaling Network Architecture

3GPP 5GC系统架构引入SCP网元,同时将网元间通信区分为直接通信和间接通信,间接通信又分为无代理发现模式(Model C)和代理发现模式(Model D),对5G信令组网架构产生深远的影响。从服务注册、服务发现、NF间通信等多方面对间接通信两种模式进行详细对比分析,并基于无代理发现模式,对5G SA信令初期及演进组网方案提出建议。

The 3 GPP 5GC system architecture has introduced the SCP network element, and inter-element communication is divided into direct and indirect communications, and the indirect communication further is divided into agentless discovery mode(Model C) and agent discovery mode(Model D), which has a profound effect on 5G SA signaling network architecture. This paper deeply analyzes and compares the two indirect communication modes in terms of service registration, service discovery, inter-NF communication, etc. Based on agentless discovery mode, this paper provides suggestions for initial stage and evolution of 5G SA signaling network solutions.