A method performed in a network node, the method comprising: the network node determining (402. 500) a first traffic load for a first network cell of a plurality of network cells, said plurality of network cells comprising a second network cell and a third network cell; for each of the plurality of network cells, the network node determining a traffic load value, thereby determining a plurality of traffic load values; the network node determining the average of said plurality of traffic load values, thereby determining an average traffic load of the plurality of network cells; the network node determining (404, 502) whether the traffic load of said first network cell is greater than said determined average traffic load of the plurality of network cells; the network node adjusting (410, 414, 504) a power of a reference signal based on said determining; and wherein in response to determining that the traffic load of said first network cell is greater than the average traffic load of the plurality of network cells, the network node determining whether network performance criteria for said first network cell is satisfied (406, 700); said network criteria specifying at least one of: that a number of user equipments experiencing a degradation in network throughput is below a first predetermined percentage, or that a number of user equipments in the at least one network cell experiencing a packet loss rate that is below a loss rate threshold is above a second predetermined percentage, or in response to determining that the network performance criteria for said first network cell is satisfied, the network node determining a power signal decrement; and in response to determining that the power of the reference signal minus the determined power signal decrement is greater than a minimum power threshold, the network node adjusting the power of the reference signal by decrementing the power of the reference signal in accordance with the determined power signal decrement (410, 704), and the network node transmitting the adjusted reference signal in said first network cell. the network node determining (402. 500) a first traffic load for a first network cell of a plurality of network cells, said plurality of network cells comprising a second network cell and a third network cell; for each of the plurality of network cells, the network node determining a traffic load value, thereby determining a plurality of traffic load values; the network node determining the average of said plurality of traffic load values, thereby determining an average traffic load of the plurality of network cells; the network node determining (404, 502) whether the traffic load of said first network cell is greater than said determined average traffic load of the plurality of network cells; the network node adjusting (410, 414, 504) a power of a reference signal based on said determining; and wherein in response to determining that the traffic load of said first network cell is greater than the average traffic load of the plurality of network cells, the network node determining whether network performance criteria for said first network cell is satisfied (406, 700); said network criteria specifying at least one of: that a number of user equipments experiencing a degradation in network throughput is below a first predetermined percentage, or that a number of user equipments in the at least one network cell experiencing a packet loss rate that is below a loss rate threshold is above a second predetermined percentage, or in response to determining that the network performance criteria for said first network cell is satisfied, the network node determining a power signal decrement; and in response to determining that the power of the reference signal minus the determined power signal decrement is greater than a minimum power threshold, the network node adjusting the power of the reference signal by decrementing the power of the reference signal in accordance with the determined power signal decrement (410, 704), and the network node transmitting the adjusted reference signal in said first network cell. that a number of user equipments experiencing a degradation in network throughput is below a first predetermined percentage, or that a number of user equipments in the at least one network cell experiencing a packet loss rate that is below a loss rate threshold is above a second predetermined percentage, or in response to determining that the network performance criteria for said first network cell is satisfied, the network node determining a power signal decrement; and in response to determining that the power of the reference signal minus the determined power signal decrement is greater than a minimum power threshold, the network node adjusting the power of the reference signal by decrementing the power of the reference signal in accordance with the determined power signal decrement (410, 704), and the network node transmitting the adjusted reference signal in said first network cell.