发展下一代铁路移动通信系统的探讨

Discussion on the development of the next-generation mobile communication system for railways

我国铁路整体技术的不断进步,对铁路沿线的移动通信系统提出了新的发展要求。高速铁路视频、数据、防灾、旅客服务等大颗粒业务的不断增多,对铁路移动通信带宽和速率的需求不断提高,现有的GSM-R移动通信技术愈发难以承载。如果能够发展下一代的移动通信系统,提供更大的网络带宽和更高的网络速率,将对铁路视频的实时回传,旅客服务体验的大幅提升,应急抢险现场的视频、语音、数据实时回传等将大有帮助。在向下一代移动通信系统演进的过程中,选择何种通信制式和接入方式,将决定未来铁路移动通信的发展趋势。

With the progress of China’s whole railway technology,new requirements of development have also been put forward for mobile communications along the railways. With the continuous increase of the large particle businesses such as railway video, data, disaster prevention and passenger service, and the demand for bandwidth and speed of railway mobile communications, the carrying capacity of the existing GSM-R mobile communications technology is more and more insufficient. If the next-generation railway mobile communication system providing greater bandwidth and higher network speeds could be successfully developed, the railway real-time video feedback, the passenger service experience and the real-time feedback of video, voice, data at the emergency rescue scene could be greatly improved. In the evolution progress of the next-generation mobile communication system, the selection of communication system and access method will determine the development trend of the future railway mobile communications.