| 摘要 |
<p>The present invention discloses a communication system between a vehicle network and a wayside network that takes frequently in account the quality of a radio-frequency connection between a plurality of distinct clients in the vehicle and respective access points at the wayside in order to provide a stable connection with permanent high quality. According to the invention, the transmission/reception of a data stream over a first low quality's client based gateway between the vehicle and the wayside network can be re-directed in real-time over a second higher quality's client based gateway. By this solution, the usual slow functionality of roaming between a single client in a train and access points at the wayside can be avoided. Moreover, the re-routing is performed by dedicated routers in the vehicle and at the wayside so that the typical roaming procedure is enhanced even if the access points are linked to different wayside subnets.</p> |
