First node and methods therein for controlling a transmission power of a second node

A first node configured to control a transmission power of a second node, wherein the first node and the second node are configured to operate in a wireless communications network, the first node being further configured to:

• determine 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 configured to be established between the third node and the second node during a second time period,
• determine a transmission power for the second node, wherein:
• when the measurement report has been received, to determine the transmission power is configured to be 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 configured to be 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, to determine the transmission power is configured to be based on the second type of calculation, and
• configure the second node to use the determined transmission power.