Embodiments provide devices, methods and computer programs for determining and transmitting in a mobile communication system and a system for time-synchronous sampling. A device (10) is adapted for determining a time base in a mobile transceiver (100) in a mobile communication system (300). The mobile communication system (300) comprises at least one base station transceiver (200) and the mobile transceiver (100) is configured to exchange information in repeating radio frames with the base station transceiver (200). The device (10) includes at least one interface (12) configured to communicate with the at least one base station transceiver (200) of the mobile communication system (300). The device further (10) comprises a control module (14), which is configured to control the at least one interface (12), to establish synchronization with the repeating radio frames, incrementally increment a counter, and receive a message from the at least one base station transceiver (200). The message includes information on a local time reference at the base station transceiver (200). The control module (14) is further configured to adapt the counter based on the information on the local time reference and thus determine the time base.