Embodiments of the present disclosure provide methods, apparatus, and computer programs for scheduling transmissions. The method implemented at the terminal device comprises: receiving, from a network device, a scheduling configuration for a device-to-device, D2D, transmission for the terminal device; receiving, from the network device, an uplink scheduling grant for a cellular uplink transmission in the same time resource that overlaps with the D2D transmission; determining a scheduling priority of the D2D transmission relative to the cellular uplink transmission based on at least one of: a first comparison between an associated priority of the scheduling configuration and a first priority threshold, and a transmission limit; and performing at least one of the D2D transmission and the cellular uplink transmission based on the determined scheduling priority. With embodiments of the present disclosure, D2D transmissions and cellular uplink transmissions from terminal devices may be well coordinated.