Radio resource selection and sensing for V2X transmissions

An integrated circuit, which is configured to control a process of a transmitting device to transmit data via a sidelink interface to one or more receiving devices, wherein the process includes:

• performing a resource sensing procedure to acquire information about radio resources usable by the transmitting device to transmit data at a later point in time, and
• after data becomes available for transmission, performing an autonomous radio resource allocation to select radio resources within a transmission window to be used to transmit the data, based on the information acquired in the resource sensing procedure during a sensing window before the data became available for transmission,
• wherein the autonomous radio resource allocation includes selecting radio resources in primary subframes of the transmission window preferably over radio resources in secondary subframes of the transmission window, and
• wherein the secondary subframes in the transmission window correspond to those subframes in the sensing window during which the transmitting device did not perform the resource sensing procedure, and the primary subframes in the transmission window correspond to those subframes in the sensing window during which the transmitting device did perform the resource sensing procedure.