Technique for Performing Power Level Control of Beams Transmitted by a Wireless Transmission Device

A technique for performing power level control of one or more beams transmitted by a wireless transmission device to a wireless reception device is disclosed. A method implementation of the technique is performed by the wireless transmission device and comprises transmitting (S) each of the one or more beams at a default power level of the respective beam, detecting (S) an obstacle entering the one or more beams based on a change in an electromagnetic environment associated with the one or more beams, the obstacle, once entered, at least partially blocking the one or more beams with respect to the wireless reception device, and decreasing (S), for each of the one or more beams, an output power of the respective beam from the default power level of the respective beam to a predetermined threshold power level of the respective beam.