Radio NETWORK kpi DEFINITIONRADIO NETWORK KEY PERFORMANCE INDICATORS DEFINITION Call Setup Success Rate = (Successful TCH seizures for MOC + Successful TCH seizures for MTC)*100/ (Successful SDCCH seizures for MOC + Successful SDCCH seizures for MTC SDCCH downlink point to point messages)

Call drop rate = (TCH call drop)*100/( Successful TCH seizures for MOC + Successful TCH seizures for MTC + Successful TCH seizures for Intra-BSC incoming cell HO + Successful TCH seizures for inter BSC incoming cell HO)

Intercell Radio HO Success Rate = (Successful incoming internal intercell HOs + Successful incoming inter BSC inter cell HOs + Successful outgoing internal intercell HOs + Successful outgoing)*100/ (Incoming internal intercell HOs + Inter BSC incoming cell HOs + Outgoing internal intercell HOs + Inter BSC outgoing cell HOs)

TCH Congestion Rate = [TCH seizures failures for call (no radio resource) + TCH seizures for very early assignment]*100/ (Attempted TCH seizures for calls + Attempted TCH seizures for very early assignment)SDCCH Congestion Rate (SDCCH overflow) = Attempted SDCCH seizures meeting SDCCH overflow*100/Attempted SDCCH seizures (all).TCH Traffic Volume (excluding very early assignment) (ERL)Meaning:

MOC:Mobile Originated Call

MTC:Mobile Terminated Call

HO: HandoverHOs: Handovers