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IPWireless Shows High Speed 3G Access in Trains
Posted on 22-Sep-2005 10:46. | Tags Filed under: News.

IPWireless is introducing UMTS RailLink, a network solution that allows mobile operators to offer high-speed broadband connectivity and WiFi access on board fast trains. Passengers will be able to use their WiFi-enabled laptops or other devices while they travel, connecting to the service as a regular hotspot.

UMTS RailLink, which is based on IPWireless's commercial UMTS TD-CDMA mobile broadband technology, can provide access to a wireless broadband network even while the train is moving at speeds up to 220 kilometers per hour.

The platform allows mobile operators to work with rail operators to provide passengers with uninterrupted WiFi hotspot access, with low network latencies, which is critical for delivering real time applications, and handover, so the connection is never lost, even at high speeds.

During the demonstration in Europe, uninterrupted megabit-plus access was provided to a train across multiple cell sites over 39 kilometers of track, including a bridge span.

The UMTS RailLink solution can be deployed over the existing unpaired IMT-2000 1900MHz spectrum owned by GSM operators, as well as any of the other commercially available TD-CDMA spectrum bands. Because UMTS RailLink is based on UMTS TD-CDMA the solution integrates seamlessly with a GSM operator's existing network, leveraging existing infrastructure to provide wide area seamless coverage for rail lines.

IPWireless is also working with operators in other European countries that are interested in providing the services enabled by UMTS RailLink. The UMTS RailLink solution is particularly attractive because unpaired IMT-2000 1900MHz spectrum is available across Europe, which would enable mobile operators to seamlessly support the many cross-border rail routes across the continent.

The UMTS RailLink solution is optimized to overcome Doppler shift and can currently support speeds of up to 220 kilometers per hour, including handover between cell sites at that speed, without losing the connection. In the future, IPWireless expects that the solution will support speeds of more than 400 kilometers per hour.

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