Pilot Pollution, could be improve through some methode. The Drivetest report audit must be performed first.
Through that report we could know which site has overshoot coverage, this site could be downtilt. But if it couldnt (the tilt is already too down) then you could reduce the CPICH power.
This could impact on the coverage, so you must discuss with your customer about this, does he want big coverage but bad on quality or low coverage but good quality…