Wireless communication system for vehicles using both trackside wlan and cellular network communication

A wireless communication system for wireless communication with a mobile router in a moving vehicle, via at least two types of external wireless networks, a first external wireless network type comprising a plurality of trackside base stations for communication in compliance with a Wireless Local Area Network(WLAN), said trackside base stations being arranged in the vicinity of a vehicle path of travel, such as a train route, and a second external wireless network type communicating via cellular network standard(s),

• wherein the mobile router is arranged, at least periodically, to simultaneously communicate with the two types of external wireless networks thereby providing at least two concurrently useable external wireless networks , the system comprising a controller, including a processor, and being connected to the mobile router and/or a remote server connected to said external wireless networks, the controller being arranged to:
• identify for data stream to or from said mobile router a data communication type for said data stream, said data communication type being selected from a set of at least two different data communication types, each data communication type being associated with a specific prioritization;
• determine, the availability of external wireless network(s) of the first of said external wireless network types, and, when good availability of such external wireless network(s) has been determined, allowing communication through this external wireless network(s) for all different data communication types with no or limited restrictions, and when it has been determined that such external wireless network(s) of the first external wireless network type is not available, allowing communication through external wireless network(s) of said second external network type based on prioritization, wherein data streams of highest priority is allowed with no restrictions, whereas data stream of lower priority is restricted or prohibited.