Back again, actually we changed the Inactivity timer on RNC level from 10s to 30s and the RAB PS drop increased by 0.8% to reach 1.8% in average, from probing we see less User inactivity , the MP load was quite stable after the change, the number of SR for upswitch from FACH to HS decreased, any comments regarding this behavior?

The formula for our PS drop is the following: RAB Drop Ps =100*((pmNoSystemRabReleasePacket)/(pmNoRabEstablishSuccessPacketInteractiveHs+pmUpswitchFachHsSuccess+(pmNoNormalRabReleasePacket-pmNoNormalRbReleaseHs)+(pmNoSystemRabReleasePacket-pmNoSystemRbReleaseHs)))