GSM takes the high road

17 Mar 2005

The Chinese Ministry of Railways has selected the Canadian equipment vendor Nortel to supply a digital mobile network for the world’s highest train line, which is being built between Qinghai and Tibet. The new cellular network will be based on the GSM for Railways (GSM-R) standard and will incorporate GPRS technology for high speed data services. The network is being installed after a year-long trial and will also be used to transmit train control data. The 700-mile Qinghai-Tibet line reaches altitudes of 15,700 feet above sea level and is due to be completed in 2007.