摘要
从通信传输网络的分层结构出发,结合近、远期城市轨道交通通信业务的特点,分别对规划设计阶段传输系统的网络化组网方案和既有线路非网络化传输系统的改造升级方案进行了探讨,并对骨干层新增以太网业务提出了网络接入建议。
In rccent years, many cities in China have con- structed urban mass transit （UMT）, and planned to build supplementary rail transit lines. Conventional construction method for communication system follows the rail construction in time sequence, meaning each rail transit line has only one independent transmission system, but this single line management mode can＇t meet the needs of networking transmission in UMT. Only after interconnection among communication transmission systems of rail transit lines, the backbone transmission network will interconnect all transit lines. In this paper, starting from the layered struc- ture of transmission network, and combined with short and long terms of UMT communication service, the network construction on the design stage of UMT transmission sys- tem and the transformation upgrading for existing stand-a- lone transmission system are put forward respectively, some suggestions on new Ethernet service access in backbone layer are proposed as well.
出处
《城市轨道交通研究》
北大核心
2013年第10期90-93,共4页
Urban Mass Transit
基金
中央高校基本科研业务费专项资金资助(SWJTU2011BR013EM)
关键词
城市轨道交通
通信传输系统
组网方案
多业务
传输平台
urban mass transit
transmission system
networking plan
multi-service transmission platform （MSTP） ddress
