Abstract: Through elaborating the current status of the existing railway mobile communication private network and researching the requirements of railway mobile communication applications, three typical railway application requirements are highlighted. Combined with the practical application of railway, the concept of railway 5G private network is proposed, and the functional architecture of railway 5G private network is focused on. Based on this, three deployment plans of railway 5G private network that meet the requirements of current railway mobile private network construction are proposed. The advantages and disadvantages of the respective solution provide a certain theoretical basis for the future construction of railway mobile communication networks, and also provide the basic support for the rapid landing of "5G + Railways" and the intelligent development of railways.

Key words: railway private network, mobile communication application requirements, 5G communication technology, railway 5G private network deployment

摘要： 通过对既有铁路移动通信专网现状的阐述，以及对于铁路移动通信应用需求的研究，重点提出3类铁路典型应用需求。结合铁路运用实际，提出铁路5G专网的概念，着重讲解铁路5G专网的功能架构，在此基础上，提出3种符合当前铁路移动通信专网建设要求的铁路5G专网部署方案，通过比较各自方案的优劣势，为未来铁路移动通信网络建设提供一定的理论依据，也为“5G+铁路”的快速落地和铁路智能化发展提供了基础支撑。

关键词: 铁路专网, 移动通信应用需求, 5G通信技术, 铁路5G专网部署