Hi thanks! Our network is huge consists of 0.3M eNodeBs with 3.5M cells so we save drive test cost as much as possible.
Currently as no sector swap is detected from system so we have started using periodic measurements data. If for sector alpha, 850 band to 2300 band measurements are lesser than 850 alpha to 2300 beta/gamma I.e. inter sector ho attempts are more than intra sector and sector orientation gap is more than 60 degrees then we suspect sector swap