A method performed by a first node for identifying oscillatory or vibrational movement of a radio antenna in a mechanical structure, said movement causing harmful effects to the mechanical structure, the first node operating in a wireless communications network, the method comprising: - obtaining a first estimation of the movement of the radio antenna, wherein the movement is associated with a displacement of the radio antenna in two or three dimensions, wherein the radio antenna being connected to a second node operating in the wireless communications network, wherein the movement being with respect to at least one wireless device operating in the wireless communications network; - determining, based on the obtained first estimation, whether the movement of the radio antenna is above a threshold over a time period, and the determining being further based on an analysis of one or more properties of radio transmissions to or from the radio antenna over the time period, wherein the one or more properties of radio transmissions comprises an amplitude of a transmission channel and a phase of the transmission channel, and - initiating of providing a message comprising at least an instruction to perform an action that contributes to counteracting harmful effects of the movement, to the second node operating in the wireless communications network, the initiation of the providing of the message being based on a result of the determination, wherein the analysis is a Doppler spectrum analysis, and wherein the analysis is based on: a. obtained measurements of at least the amplitude and the phase of the transmission channel over the time period; b. a division of the obtained measurements in subsets of periods of time comprised in the time period; c. a Fourier transform over each of the subsets of periods of time; and wherein the determining is further based on a set of Doppler spectrum values obtained from the Fourier transform over each of the subsets of periods of time. - obtaining a first estimation of the movement of the radio antenna, wherein the movement is associated with a displacement of the radio antenna in two or three dimensions, wherein the radio antenna being connected to a second node operating in the wireless communications network, wherein the movement being with respect to at least one wireless device operating in the wireless communications network; - determining, based on the obtained first estimation, whether the movement of the radio antenna is above a threshold over a time period, and the determining being further based on an analysis of one or more properties of radio transmissions to or from the radio antenna over the time period, wherein the one or more properties of radio transmissions comprises an amplitude of a transmission channel and a phase of the transmission channel, and - initiating of providing a message comprising at least an instruction to perform an action that contributes to counteracting harmful effects of the movement, to the second node operating in the wireless communications network, the initiation of the providing of the message being based on a result of the determination, wherein the analysis is a Doppler spectrum analysis, and wherein the analysis is based on: a. obtained measurements of at least the amplitude and the phase of the transmission channel over the time period; b. a division of the obtained measurements in subsets of periods of time comprised in the time period; c. a Fourier transform over each of the subsets of periods of time; and wherein the determining is further based on a set of Doppler spectrum values obtained from the Fourier transform over each of the subsets of periods of time. wherein the analysis is a Doppler spectrum analysis, and wherein the analysis is based on: a. obtained measurements of at least the amplitude and the phase of the transmission channel over the time period; b. a division of the obtained measurements in subsets of periods of time comprised in the time period; c. a Fourier transform over each of the subsets of periods of time; and a. obtained measurements of at least the amplitude and the phase of the transmission channel over the time period; b. a division of the obtained measurements in subsets of periods of time comprised in the time period; c. a Fourier transform over each of the subsets of periods of time; and wherein the determining is further based on a set of Doppler spectrum values obtained from the Fourier transform over each of the subsets of periods of time.