A user equipment (2) comprises a wireless interface (20) for communication with a cellular communication network. The wireless interface (20) is operative for a device-to-device transmission and/or a device-to-device reception in a position determining procedure in which a relative position of the user equipment (2) and at least one further user equipment (3, 4) is determined. The user equipment (2) is operative to communicate with a radio access network node (11) of the cellular communication network for network assistance in the position determining procedure.