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Train passengers get T-Mobile Wi-Fi
Handy when you're delayed just outside a station...

By Graeme Wearden

Published: Thursday 17 February 2005

T-Mobile is using WiMax to underpin a service that will provide high-speed wireless connectivity to passengers on board trains.

The mobile operator has teamed up with Southern Trains and Nomad Systems, it said on Wednesday. Wi-Fi access points have been installed in Southern Trains' rolling stock, letting anyone travelling between Brighton and London with a Wi-Fi-enabled laptop or PDA get internet access on the move.

A free trial of the service is due to begin in early March, ahead of a commercial launch planned for this summer.

Several other companies, such as Broadreach and Icomera, have already been operating train Wi-Fi services in the UK. T-Mobile, though, claims that it is the first 'genuine broadband' service, because it uses WiMax as the uplink to the internet.

WiMax gives T-Mobile a two-way connection of up to 32Mbps, which should be enough to support a large number of individual passengers accessing it at the same time.

Nigel Wallbridge, executive chairman of Nomad Digital, said in a statement: "Although the London to Brighton line presents many challenges we have proved that high-speed wireless access to moving trains is possible without building huge towers or other costly infrastructure. Whether the train travels through tunnels, under bridges or alongside high hedgerows, customers should not experience a drop in service."

Broadreach's system uses a combination of 3G networks and a satellite link to connect back to the internet.

Graeme Wearden writes for ZDNet UK.