5G通信技术在城市轨道交通中的应用研究

Research on Application of 5G Communication Technology in Urban Rail Transit

5G技术是构建智慧地铁的重要基础,在地铁运营管理中具有丰富的应用场景。重点对5G技术在地铁中的建设、应用和未来发展进行探讨。首先,简要阐述5G通信技术发展的关键历程及在地铁中的主要应用情况;其次,提出5G公网建设的需求,重点从地铁既有设备对5G频段的支持、传播的损耗、电源的要求、设计标准的统一、既有线路5G改造难度和施工工作量等6个方面,研究5G公网建设的难点;然后,从地铁新线和既有线改造2个方面,提出5G公网建设的整体思路;最后,对5G技术在面向乘客服务和面向运营维护2个方面的实际应用情况进行说明,提出5G通信技术在未来城市轨道交通中的应用,不仅要在面向乘客服务上继续深挖,更应在面向运营维护上拓展思维,为进一步探索5G通信技术在城市轨道交通中的应用提供参考。

5G technology is an important foundation for building smart subways and has broad application scenarios in subway operation and management.The construction,application and future development of 5G communication technology in subway are focused on exploration.Firstly,the key process of the development of 5G communication technology and its main application in the subway are briefly expounded.Secondly,the requirements for 5G public network construction are put forward and the difficulties of 5G public network construction are studied including six aspects:the support of existing subway equipment for 5G frequency bands,transmission loss,power supply requirements,unification of design standards,construction difficulty and workload of 5G transformation of existing lines.Then,from the two aspects of new subway lines and existing line renovation,the overall thinking of 5G public network construction is proposed.Finally,the practical application of 5G technology in both aspects including passenger service oriented and operation maintenance oriented is explained,and it is proposed that the application of 5G communication technology in future urban rail transit should not only continue to deepen the application of 5G technology in passenger service,but also expand thinking on the application of 5G technology in operation and maintenance,providing reference for further exploration of the application of 5G communication technology in urban rail transit.