LTE Call Setup Success Rate

Call Setup Success Rate

Description

The Call Setup Success Rate KPI indicates the call setup success rate for all services, including the VoIP service in a cell or radio network. This KPI is calculated based on the RRC Setup Success Rate (Service) KPI, the S1 Signaling Connection Setup Success Rate KPI, and the E-RAB Setup Success Rate (All) KPI.

Definition

The Call Setup Success Rate KPI is defined in Table 1. The KPI is calculated by multiplying the RRC Setup Success Rate (Service) KPI, the S1 Signaling Connection Setup Success Rate KPI, and the E-RAB Setup Success Rate (All) KPI.

Table 1 Call Setup Success Rate

Name	Call Setup Success Rate
Object	Cell or radio network
Formula	CSSR = (RRCConnectionSuccessservice/RRCConnectionAttemptservice) x (S1SIGConnectionEstablishSuccess/S1SIGConnectionEstablishAttempt) x (ERABSetupSuccess/ERABSetupAttempt) x 100%
Associated Counters	Call Setup Success Rate =((L.RRC.ConnReq.Succ.Emc + L.RRC.ConnReq.Succ.HighPri + L.RRC.ConnReq.Succ.Mt + L.RRC.ConnReq.Succ.MoData + L.RRC.ConnReq.Succ.DelayTol)/(L.RRC.ConnReq.Att.Emc + L.RRC.ConnReq.Att.HighPri + L.RRC.ConnReq.Att.Mt + L.RRC.ConnReq.Att.MoData + L.RRC.ConnReq.Att.DelayTol)) x (L.S1Sig.ConnEst.Succ/L.S1Sig.ConnEst.Att) x (L.E-RAB.SuccEst/L.E-RAB.AttEst) x 100%
Unit/Range	Percentage (%)