摘要
在城市轨道交通乘客信息系统(PIS)车-地无线系统中,目前主要应用为基于IEEE 802.11系列协议的WLAN技术,主要有2.4G及5.8G两种方式。目前欧洲主流应用为5.8G频段,国内主要采用2.4G频段。尽管LTE技术在民用移动通信领域已得到广泛应用,但在城市轨道交通乘客信息系统(PIS)采用LTE技术的车-地无线通信系统目前较少。本文就LTE技术在城市轨道交通乘客信息系统(PIS)中的应用进行研究,设计一种采用LTE技术组网的方式实现城市轨道交通乘客信息系统(PIS)车-地无线通信,通过组网方式的优化,简化设计,更好的实现LTE技术在城市轨道交通领域的应用。
At present, the application of train-trackside wireless systems in passenger information systems (PIS) for urban rail transit is mainly based on the WLAN technology of IEEE 802.11 protocols, with 2.4 G (prevalent in China) and 5.8 G (prevalent in Europe) as the two major choices of frequency bands. Despite of its extensive application in public mobile communication, LTE is not usually applied to train-trackside wireless systems in PIS for urban rail transit. This paper introduces a method of LTE networking for train- trackside wireless communication of PIS through optimized networking and simplified design, in order to improve LTE applications in urban rail transit.
出处
《铁路通信信号工程技术》
2017年第5期54-56,共3页
Railway Signalling & Communication Engineering