Smart Urban Rail All-Optical Network

Smart urban rail based on innovative applications such as cloud, big data and the internet of things (IoT) has become the industry trend, greatly improving the efficiency of transportation and improving the travel experience of the public. In addition, smart urban rail brings the following challenges to communication network: very strict requirements on security and reliability of monitoring services of the dispatching system and power supply system, high requirements on the transmission bandwidth due to the surge of advertisement videos and the HD video services, insufficient management mode of the optical fibers laid along the track, etc.

To cope with services development of the industry, Huawei provides the intelligent urban rail all-optical network solution, which is based on the MS-OTN (multi-service optical transport network) platform and features the converged access of PCM (Pulse Code Modulation), SDH (Synchronous Digital Hierarchy), OTN and Ethernet services, and the physical isolation between services based on TDM (Time Division Multiplexing) and WDM (Wavelength Division Multiplexing) technologies to build a future-oriented network with high security, large bandwidth and intelligent O&M.