solutions of ping pong h/o failures,drag cell,call drop,missing neighbour

[simmus0300]

hi,

I want to know the solutions of ping pong handover,drag cell ,call drop, missing neighbour,delay handover,oversooting by a site. give the samples(snap shot) of bts sites before faults given above and after the solutions of these faults.
This can be helpful to many rf professionals.