Abstract: Systems and methods are disclosed herein that enable protecting a higher priority radio technology (e.g., 3GPP New Radio (NR) or NR in Unlicensed spectrum (NR-U)) when co-existing with an unlicensed radio technology (e.g., the Wi-Fi wireless network technology) operating in the same frequency band. In one embodiment, a method of operation of a radio access node of radio access network of a cellular communications system comprises transmitting a Request to Send (RTS) frame within a Time Division Duplexing (TDD) radio frame on a cell served by the radio access node in an unlicensed frequency band. The method further comprises transmitting a downlink transmission to a wireless communication device or receiving an uplink transmission from the wireless communication device, on the cell served by the radio access node in the unlicensed spectrum during a period of time that corresponds to a duration of time indicated in the RTS frame.

Abstract: There is provided mechanisms for adapting beamformed transmission from a base station. A method is performed by a control node. The control node is configured to control the beamformed transmission. The method comprises obtaining a first piece of information indicative of distance to, and direction towards, a radio communication site relative the base station. The method comprises obtaining a second piece of information indicative of operating radio frequency band of the radio communication site. The method comprises adapting the beamformed transmission so as to keep emission from the base station in the direction towards the radio communication site that contributes within the operating radio frequency band of the radio communication site within a prescribed limit.

Abstract: An aerial vehicle includes a radio transceiver device configured for radio transmission in a set of radiation directions. The aerial vehicle includes a mechanical shield positioned to reduce power of the radio transmission in at least some of the radiation directions in the set of radiation directions. The aerial vehicle further includes a controller configured to control at least one of: movement of the aerial vehicle, movement of the mechanical shield, radio communication of the aerial vehicle via the radio transceiver device.

Abstract: There is provided mechanisms for performance degradation handling between a first radio access network node that operates in a first frequency band and provides network access for subscribers of a first mobile network operator and a second radio access network node that operates in a second frequency band and provides network access for subscribers of a second mobile network operator. A method is performed by the first radio access network node. The method comprises identifying performance degradation impacting the network access for the subscribers of the first mobile network operator. The performance degradation is identified as originating from a particular direction relative the first radio access network node and as caused by the second radio access network node. The method comprises providing, towards the second radio access network node, an indication of the performance degradation.

Abstract: There is provided mechanisms for adapting beamformed transmission from a base station. A method is performed by a control node. The control node is configured to control the beamformed transmission. The method comprises obtaining a first piece of information indicative of distance to, and direction towards, a radio communication site relative the base station. The method comprises obtaining a second piece of information indicative of operating radio frequency band of the radio communication site. The method comprises adapting the beamformed transmission so as to keep emission from the base station in the direction towards the radio communication site that contributes within the operating radio frequency band of the radio communication site within a prescribed limit.