Abstract: A technique for forwarding data packets (730) during a handover of a radio device (100) from a source cell to a target cell of a radio network (702) serving as a time-sensitive networking, TSN, bridge (700) is described. As to a method aspect of the technique at the radio device (100), first TSN data packets (730) are forwarded in the source cell using a first PDU session (704) between the radio device (100) and a user plane, UP (300), of a core network, CN (720), of the radio network (702). Prior to releasing the first PDU session (704), a second PDU session (704) is established (404) between the radio device (100) and the UP (300) of the CN (720) in the target cell, wherein the first PDU session (704) uses a first active protocol stack at the radio device (100) and the second PDU session (704) uses a second active protocol stack at the radio device (100). Second TSN data packets (730) are forwarded in the target cell using the second PDU session (704).

Abstract: A vehicle for underground mine shafts includes a body having a cabin located in a front section of a vehicle with an entry to the cabin located at the front of the vehicle, a door at the entry, a sensor for sensing when the door is open and control circuitry which is connected to the sensor. The vehicle also includes vehicle brakes to activate the vehicle brakes when the sensor senses that the door is open, a pair of tracks on either side of the cabin, a driving means for driving the tracks, a steering means for steering the body, and a suspension system including a torsion bar suspension arrangement which permits torsion bars of the vehicle to be located just above the level of track wheels of the vehicle.