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铁路通信信号工程技术 ›› 2021, Vol. 18 ›› Issue (7): 54-57.DOI: 10.3969/j.issn.1673-4440.2021.07.013

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基于服务化架构的5G核心网消息传递研究

郑 伟   

  1. 中国铁路北京局集团有限公司北京通信段，北京 100038
  • 收稿日期:2020-07-27 修回日期:2021-05-07 出版日期:2021-07-25 发布日期:2021-08-11

Message Transmission Based on SBA in 5G Core Network

Zheng Wei   

  1. Beijing Communication Department, China Railway Beijing Group Co., Ltd., Beijing    100038, China
  • Received:2020-07-27 Revised:2021-05-07 Online:2021-07-25 Published:2021-08-11

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摘要： 对5G核心网中各个功能实体间的消息传递基本协议进行研究和分析。介绍服务化架构（Servise Based Archiecture，SBA）的基本概念以及实现该架构的服务化接口（Servise Based Interface，SBI），并对该接口的基本参考模型进行分析。通过对移动通信网络基本需求的分析，基于SBA给出一个简化的5G网络基本结构，阐述该结构基于SBA的简单运作机制；通过举例，对该架构、接口的实际应用进行描述，印证移动通信网络消息传递发展IT化的大趋势。

关键词: 5G, 核心网, SBA, SBI, 消息, 传输, GSM-R

Abstract: This paper studies and analyzes the message transmission protocol in the core network of 5th Generation mobile communication system. First the basic concept of Service Based Architecture (SBA) is introduced, and then Service Based Interface (SBI) is also introduced and the reference model is analyzed. Then a simplified basic 5G network architecture based on SBA is drawn through the analysis of the basic requirements of mobile communication network, and the simple operation mechanism of the structure based on SBA is described. Finally, the practical application of the framework and interface is described by using an example, which confirms the general trend of IT-based development of message transmission in mobile communication network.

Key words: 5G, core network, SBA, SBI , message, transmission, GSM-R

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