A method performed by a first node of controlling a transmission power of a second node, wherein the first node and the second node operate in a wireless communications network, the method comprising: determining whether a measurement report has been received by the first node during a first time period from a third node, wherein the measurement report comprises a first type of information, related to a quality of a radio channel, which radio channel is established between the third node and the second node during a second time period, determining a transmission power for the second node, wherein: when the measurement report has been received, the determining the transmission power is based on a first type of calculation for determining the transmission power and a second type of calculation for determining the transmission power, wherein the first type of calculation is based on the received measurement report, and wherein the second type of calculation is based on a second type of information related to the quality of the radio channel established between the third node and the second node during a third time period, wherein the third time period is a shorter time period than the second time period, when the measurement report has not been received, the determining the transmission power is based on the second type of calculation, and configuring the second node to use the determined transmission power, characterized in that the second type of calculation is further based on a last received measurement report, wherein the last received measurement report comprises the first type of information comprising measurement information on the quality of a radio channel established between the third node and the second node during a fourth time period, wherein the fourth time period ends no later than when the third time period ends. determining whether a measurement report has been received by the first node during a first time period from a third node, wherein the measurement report comprises a first type of information, related to a quality of a radio channel, which radio channel is established between the third node and the second node during a second time period, determining a transmission power for the second node, wherein: when the measurement report has been received, the determining the transmission power is based on a first type of calculation for determining the transmission power and a second type of calculation for determining the transmission power, wherein the first type of calculation is based on the received measurement report, and wherein the second type of calculation is based on a second type of information related to the quality of the radio channel established between the third node and the second node during a third time period, wherein the third time period is a shorter time period than the second time period, when the measurement report has not been received, the determining the transmission power is based on the second type of calculation, and configuring the second node to use the determined transmission power, characterized in that the second type of calculation is further based on a last received measurement report, wherein the last received measurement report comprises the first type of information comprising measurement information on the quality of a radio channel established between the third node and the second node during a fourth time period, wherein the fourth time period ends no later than when the third time period ends. when the measurement report has been received, the determining the transmission power is based on a first type of calculation for determining the transmission power and a second type of calculation for determining the transmission power, wherein the first type of calculation is based on the received measurement report, and wherein the second type of calculation is based on a second type of information related to the quality of the radio channel established between the third node and the second node during a third time period, wherein the third time period is a shorter time period than the second time period, when the measurement report has not been received, the determining the transmission power is based on the second type of calculation, and configuring the second node to use the determined transmission power, characterized in that the second type of calculation is further based on a last received measurement report, wherein the last received measurement report comprises the first type of information comprising measurement information on the quality of a radio channel established between the third node and the second node during a fourth time period, wherein the fourth time period ends no later than when the third time period ends.