KPI Formula

KPI formula -Ericsson Network Wide KPI's (NBH)

Target FORMULAE - ERICSSON

1

Random Access Success Rate % >=98

100 * CNROCNT / (CNROCNT + RAACCFA)

2

SDCCH Blocking %

3

SDCCH Time Congestion/Cell

4

SDCCH Drop % =90 NLAPAG1TOT 26.0

=95

100 * NLALOCSUCC / NLALOCTOT

(NBANS + NABEFA1 + NABEFA2 + NCAWNOA +

28.0 Network Availability (Switch/IN)% >99.99 100 * (No of days * 24 * 60 * Total No of Nodes – Summation of Downtime in minutes of Nodes) / (No of days * 24 * 60 * Total No of Nodes) Where: Nodes are GMSCs, MSCs, SCPs, SDPs Data KPI's 29 Core Network Availability % >99.99 100 * (No of days * 24 * 60 * Total No of Nodes – Summation of Downtime in minutes of Nodes) / (No of days * 24 * 60 * Total No of Nodes) Where: Nodes are GGSNs, SGSNs 30 Attach Success Rate excluding Unregistered Subs. % >=99 100 * [1 ((gprsMmSgsnUnsuccAttReq - gprsMmSgsnUnsuccAttReqCC7/8/14) / gprsMmSgsnAttReq)] 31 PDP context activation success rate (Only NW Cause codes) % >=99 100 * gprsSmSgsnSuccActivations / (gprsSmSgsnSuccActivations + gprsSmSgsnUnsuccActivations) GPRS KPIs 32 Round trip time =12 kbps

ULBGGTHR / ULBGGDATA

34

Average DL throughput per TBF >=25 kbps

DLBGGTHR / DLBGGDATA

EDGE KPIs 35 Round trip time =20 kbps

ULBGEGTHR / ULBGEGDATA

37

Average DL throughput per TBF >=45 kbps

DLBGEGTHR / DLBGEGDATA