地铁TD-LTE网络多业务承载技术研究

Multi-service Bearing Technology Based on Metro TD-LTE Network

目前地铁的CBTC(基于通信的列车控制)系统、TETRA(泛欧集群无线电)和PIS(旅客信息系统)等分别承载在WLAN(无线局域网)和集群无线电等物理网络上,基于已经在民用领域得到广泛应用的TD-LTE(时分-长期演进)技术,结合地铁多业务承载的实际需求,提出了基于TDLTE技术的地铁多业务承载方案,并对其中的部分问题进行了研究,提出了相应的解决思路,为地铁多业务承载通信网络设计提供参考。

Currently metro CBTC, TETRA （trans-Europe- an trunked radio system） and PIS（production identity sys- tem） systems are beared on WLAN and trunked radio net- work respectively based on TD - LTE technology, which is widely applied in civilian areas, and combined with the ac- tual needs of multi-service metro hearing works, a multi- service metro bearing program is proposed on the basis of TD - LTE technology, problems related to this program are studied, corresponding solutions are proposed. This re- search will provide some reference for metro multi-service metro bearing network construction in the future.