Huawei and Thales, a world leader in transportation systems, announced today the successful completion of the world’s first live pilot test of 4G LTE service executed on Shanghai Metro Line 6.
For this project, Huawei’s 4G LTE infrastructures, a highly reliable digital wireless train to ground communications system has been integrated with Thales SelTrac CBTC (Communications Based Train Control system) state of the art signaling technology.
Solutions combining LTE and CBTC technologies for metro lines allow operators to benefit from enhanced performance, safety and lower life-cycle costs in their day to day operations while at the same time being in a position to offer advanced voice and data communication services on board their trains.
This CBTC over LTE pilot marks a major step forward in the commercialization of 4G/LTE technology as it is the world’s first demonstration that LTE is perfectly capable to transport mission critical CBTC signalling data on a real world metro network.
The two companies’ LTE pilot project was launched early 2015 with the outlining of high level project targets for static “in-lab” and dynamic “on-track” test runs.
A joint team was created to architect, design and install test sites. After initial completion of joint lab tests together with the help of Shanghai Metro and TST (a joint venture between Thales, Shanghai Electric and Shanghai Automation Instrumentation Co. Ltd.) dynamic test runs with metro trains were performed.
Field tests along Shanghai Metro Line 6 were conducted in the second half of 2015 with final validate of functional and performance criteria in end 2015.
For Shanghai Metro Line 6 test runs CBTC traffic was conveyed between ground-based and on-board CBTC devices using a highly reliable fully redundant LTE network architecture operating on 1.8GHz TDD with a 1.4MHz bandwidth.
The joint solution report was formally released end of November 2015 and is expected to soon lead to awards for LTE train-to-ground infrastructure deployment with CBTC signaling.