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1、,WCDMA UTRAN KPI,Introduction,KPI definition Key performance indicator KPI entity RNC level Cell level Clutter/region level (customized) KPI analysis Network performance surveillance Trouble shooting network problems Network trend analysis,UTRAN KPI Overview,The UTRAN KPI can be divided into 5 catal
2、ogs Accessibility：UTRAN Call Setup Retainability：UTRAN Call Drop Mobility：UTRAN Mobility Management Traffic：Resource and Traffic management Algorithm： Radio Resource Management Algorithm Management,Contents,UTRAN Call Setup UTRAN Call Drop UTRAN Mobility Management Traffic Management Algorithm Manag
3、ement,UTRAN Call Setup,UTRAN Call Setup includes the RRC connection setup and the RAB establish procedure. The Successful call setup involves the success RRC and RAB setup. The main indicators are RRC Setup Success Rate RAB Setup Success Rate,RRC Setup Counter,Measurement Point Stat. Number of RRC C
4、onnection Request in Point A1 of Figure1 Stat. Number of RRC Connection Setup in Point B of Figure1 Stat. Number of RRC Connection Setup complete in Point C of Figure1 Stat. Number of RRC Connection Reject in point A of Figure2,F1:successful RRC connection setup procedure F2: RRC connection reject p
5、rocedure,RRC Setup Counter,RRC Setup KPI RRC Connection Setup Success Rate = RRC Connection Setup complete / RRC Connection Request Main counter RRC Connection Request RRC Connection Setup RRC Connection Reject RRC Connection Setup complete,RRC Setup Counter,Request cause counter Originating convers
6、ational call Terminating conversational call Inter-RAT cell re-selection Inter-RAT cell change order Registration Failure cause counter RRC Reject RRC setup no response,RAB Setup Counter,Measurement Point Stat. Number of RAB Setup Request in Point A of Figure1 Stat. Number of RAB Setup Success in Po
7、int B of Figure1 Stat. Number of RAB Setup Failure in Point B of Figure2,F1: Successful RAB setup procedure F2: RAB setup failure procedure,RAB Setup Counter,RAB Setup KPI CS RAB Success rate = CS RAB Setup Success/CS RAB Setup Request PS RAB Success rate = PS RAB Setup Success/CS RAB Setup Request
8、Overall counter CS RAB Setup Request CS RAB Setup Success CS RAB Setup Failure PS RAB Setup Request PS RAB Setup Success PS RAB Setup Failure Traffic class based counter Conversational Streaming Interactive Background,RAB setup counter,Typical bearer based counter AMR speech CS64kbps PS64kbps PS128k
9、bps PS384kbps Failure cause counter Invalid parameters Unavailable Transport Layer failure Other cause,Contents,UTRAN Call Setup UTRAN Call Drop UTRAN Mobility Management Traffic Management Algorithm Management,Call Drop Counter,Measurement Point Stat. Number of Call Drop in Point A of Figure1 and i
10、n Point A of Figure2 Definition of Call Drop : Abnormal RAB release triggered by RNC,F1: RAB release request procedure F2: Iu connection release request procedure,Call Drop Counter,Call Drop KPI AMR Call Drop Rate = AMR Call Drop / AMR RAB Setup Success VP Call Drop Rate = VP Call Drop / VP RAB Setu
11、p Success PS Call Drop Rate = PS Call Drop / PS RAB Setup Success Overall counter CS call drop PS call drop Traffic class based counter Conversational Streaming Interactive Background,Call Drop Counter,Typical bearer based counter AMR speech CS64kbps PS64Kbps PS128Kbps PS384Kbps Call drop cause coun
12、ter RF loss RLC reset AAL2 failure GTPU loss Other cause,Contents,UTRAN Call Setup UTRAN Call Drop UTRAN Mobility Management Traffic Management Algorithm Management,UTRAN Mobile Management,The UTRAN Mobile Management focus on the KPIs of the handover procedures. Soft handover Hard handover InterRAT
13、handover InterRAT cell change order Cell update,SHO counter,Measurement Point Stat. Number of SHO request in Point B of Figure1 Stat. Number of SHO success in Point C of Figure1 Stat. Number of SHO failure in Point C of Figure2 and in Point C of Figure3,F1: Successful SHO procedure F2: SHO failure p
14、rocedure (activeset update failure) F3:SHO failure procedure (time out),SHO counter,Soft handover KPI Soft HO Success rate=Soft HO success / Soft HO request Softer HO Success rate=Softer HO success / Softer HO request Overall counter Soft HO request Soft HO success Softer HO request Softer HO succes
15、s Typical Service based counter AMR speech CS64kbps PS64kbps PS128kbps PS384kbps,SHO counter,Failure cause counter configuration unsupported incompatible simultaneous reconfiguration invalid configuration No response Other cause SHO factor counter (1 radio link, 2 radio links, 3 radio links) active
16、set SHO factor (based on radio link) = active set average link number -1 SHO factor (based on UE) = (2 radio links active set + 3 radio links active set) / (1 radio links active set + 2 radio links active set + 3 radio links active set),HHO counter,Measurement Point Stat. Number of HHO request in Point B of Figure1 Stat. Number of HHO success in Point C of Figure1 Stat. Number of HHO failure in Point A of Figure2 and in Point A of F
