ZTE in partnership with Ansaldo STS has completed a communication-based train control (CBTC) over LTE test. Ansaldo STS, which specialises in the global signalling and integrated transport systems markets for both passengers (railway/mass transit) and freight, provided the CBTC signalling equipment, while ZTE provided the LTE equipment and devices required for the test.
The test result shows that ZTE’s LTE technology met the requirement of CBTC. The test covered scenarios such as static condition, handover, failover and load with static and dynamic configuration.
The key performance indicators (for example, packet loss, latency, maximal number of users, system start-up and shutdown time) fully comply with the requirement of CBTC transmission, ZTE said.
Prior to the lab test, ZTE and Ansaldo STS had already verified CBTC over LTE in the Hangzhou Metro (pictured) using the automatic train operation (ATO) mode. This field verification confirmed that key performance indicators, such as packet loss and latency, fully met the requirement of CBTC.
LTE is being touted as a possible successor to the widely used GSM-R communication-based train control system used on European railways. However, with new GSM-R systems still being deployed, LTE is not expected to be widely used in Europe for at least a decade if not longer.