have a look to this thread.
Are you using monoband cc cell, or multiband cc cell ? (cc = concentric)
if monoband, then use
ZONE HO HYST DL = 6dBm
ZONE HO HYST UL = 3dBm
MS_TXPOWER_MAX_INNER = 33dBm – the trx attenuation in the inner zone (ie. if attenuation = 10dB, then mstxpowermaxinner = 23dBm)
The parameter neighbour Rxlev(o,n) is very very very useless, keep it at a default -47dBm for all neighbours. I don’t think it is worth explaining it in details…
If you increase it towards a certain neighbour, you’re going to reduce the number of HO from inner zone to that neighbour.
Please share your current settings.