3/10/2015 3G KPI guidelines | Tarun M - Academia.edu http://www.academia.edu/4306825/3G_KPI_guidelines 1/36 3G KPI guidelines Log In Sign Up Appendix U12 UMTS Network KPI NOTES: This document can be used as an example of defining KPIs in a contract. It is in Ericsson’s interest that KPIs are well defined, including: a KPI target values (keep as few with targets as possible) b Formula and measurement definitions (for drives and stats) c Where and how KPI will be measured (locations, setup, tools, drive, statistics) d Conditions – prerequisites, exclusions e Statistical considerations As much of this as practical should be defined in the contract, particularly anything that will limit Ericsson’s risks and costs. Some of the material in this document may best be included in other parts of the contract, including the Acceptance Procedure and associated documents. KPI target values have very little meaning until the conditions of measurement are defined as above. Committing to a target without defining how, when and where it will be measured leaves Ericsson at great risk. N.B. The KPIs and their targets included in this document may not be the ones recommended by Ericsson. Refer to the KPI Technical Guidelines and KPI data base for current recommendations. Tarun M top 0.5% 8,030 Download Uploaded by DOC Search...
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3/10/2015 3G KPI guidelines | Tarun M - Academia.edu
This document can be used as an example of defining KPIs in a contract. It is inEricsson’s interest that KPIs are well defined, including:
a KPI target values (keep as few with targets as possible)
b Formula and measurement definitions (for drives and stats)
c Where and how KPI will be measured (locations, setup, tools, drive, statistics)
d Conditions – prerequisites, exclusions
e Statistical considerations
As much of this as practical should be defined in the contract, particularly anythingthat will limit Ericsson’s risks and costs.
Some of the material in this document may best be included in other parts of thecontract, including the Acceptance Procedure and associated documents.
KPI target values have very little meaning until the conditions of measurement aredefined as above. Committing to a target without defining how, when and where it willbe measured leaves Ericsson at great risk.
N.B. The KPIs and their targets included in this document may not be the onesrecommended by Ericsson. Refer to the KPI Technical Guidelines and KPI data basefor current recommendations.
SUMMARY OF LEVEL-1 KPI AND TARGETS..........................................................................................................................3
2 PERFORMANCE COMMITMENTS AND REQUIREMENTS.....................................................................................6
GENERAL R EQUIREMENTS.....................................................................................................................................................6
3.1.3 CSV Access Failure.........................................................................................................................................9In the event that there are several consecutive RRC Connection Request only the first RRC connection request
shall be taken into account for the KPI calculation. .....................................................................................................11
Calls are considered as failed during access when a connection is attempted and the UE does not receive
Alerting/Connect message in case of drive test measurement. For OSS RANAP: RAB Assignment Response message
from the RNC to core Network is considered as a call successful setup........................................................................11
In case there are several consecutive RRC Connection Requests only the first RRC connection request will be
taken into account for the KPI calculation.....................................................................................................................20
PACKET SWITCHED LEVEL-1 K EY PERFORMANCE I NDICATORS.........................................................................................233.1.14 Packet Switched Call Setup.........................................................................................................................23
3.1.27 HSDPA Data Session Setup Time................................................................................................................37
SYSTEM AVAILABILITY ......................................................................................................................................................38
3.1.28 Average Cell Availability.............................................................................................................................383.1.29 Average Cell Non-Maintenance Availability...............................................................................................39
COMPARISON OF UMTS AND GSM NETWORK PERFORMANCE.........................................................................................39
IMPACT OF UMTS ON GSM NETWORK PERFORMANCE.....................................................................................................40
The purpose of this Appendix U12 is to define Network Key Performance Indicators (KPI) for the UMTS
drive test, UTRAN counter based measurements and performance targets and formulas for each of the
KPI. All capitalized terms, acronyms, and definitions used in this Appendix U12 are listed in either the
UMTS Acronyms and Definitions (Appendix U18), or in the Original Agreement.
The UTRAN KPI definition and development effort is performed at the two levels as defined below:
Level-1 KPI: are the high-level metrics used for overall service quality measurement and monitoring
the health of Purchaser’s UTRAN Network. These metric definitions shall be agreed to by Seller,
and Seller‘s implementation of the Level-1 metrics shall be in compliance with Purchaser‘s
definitions defined in this Appendix U12.
Level-2 KPI: are the detailed engineering level metrics that shall be used for engineering,dimensioning the Network, the investigation and troubleshooting of problem areas in the UMTS
Network.
Summary of Level-1 KPI and Targets
NOTE: The selection of KPI and the target values should use theKPI Technical Guidelines and KPI Database. The following is anexample from a real contract and should NOT be seen asEricsson recommendation and must not be used in any contractin this form.