FREQUENCY OFFSET IN NON-TERRESTRIAL NETWORKS

Methods and apparatus for obtaining a frequency offset corresponding to a Doppler shift of transmission and/or reception frequencies between a wireless device and a network node. In one embodiment a method is performed by a wireless device for operating in a non- terrestrial network, NTN, the NTN comprising at least one network node and a communication satellite, wherein the at least one network node is one of a terrestrial base station and a satellite base station or satellite gateway, the method comprises obtaining (600) a frequency offset corresponding to a Doppler shift of transmission and/or reception frequencies between the wireless device and the network node and applying (610) the frequency offset to an uplink transmission to the network node.