Adjusting transmitter configuration for a base station transmitter of a cell of a wireless network, involves receiving indications of received power measured at user equipments (UE) of customers over a first period of time of service operation of the cell, determining a generic change in the received power over a second period of time at chosen ones of the user equipments in an area, chosen to represent reference points within the area, and chosen based on variability in the received power. Then an adjustment is made to the transmitter configuration based on the determined generic change in the received power. Selecting which UEs to use can enable detection of finer gradations in the generic changes in the received power to be distinguished from the larger changes in individual indications of the received power. This can lead to better control of the transmitter configuration under changing conditions.