Abstract: Combined with the existing railway communication system architecture, the development trend of the next generation railway communication network is expounded. This paper puts forward the intelligent vision of railway communication network, points out that the railway communication network will evolve to the direction of ubiquitous interconnection, cloud network collaboration and DOICT technology deep integration. This paper analyzes the emerging technologies and technical systems represented by cloud computing, software defined network (SDN) and artificial intelligence (AI), and puts forward suggestions on ICT technology architecture suitable for railway communication network, which is of guiding significance for the evolution direction and overall architecture of the next generation railway communication system.

Key words: railway, communication, cloud computing, SDN, AI

摘要： 结合现有铁路通信系统构架，阐述下一代铁路通信网的发展趋势。提出铁路通信网的智能愿景，铁路通信网将向泛在互联、云网协同、DOICT技术深度融合等方向演进。分析以云计算、软件定义网络（SDN）、人工智能（AI）等为代表的新兴技术及技术体制，提出适用于铁路通信网的ICT技术体系架构建议，对新一代铁路通信系统演进方向和系统总体架构具有指导意义。

关键词: 铁路, 通信, 云计算, SDN, AI