System architecture for the MOSTRAIN project (mobile services for high speed trains)

High speed trains are becoming an increasingly common mode of transport, and one of the advantages of this mode of transport is the range of services which can be offered on board. The aim of the ACTS MOSTRAIN project is to further the development of UMTS by addressing the challenges of providing the full range of UMTS services to high speed trains, both for the travelling public, as well as allowing for train control and signalling applications. This paper describes the design requirements and the architecture which is being developed for the system.