GSM-to-UMTS Training Series 19 - Introduction To UMTS RAN KPI - V1.0
GSM-to-UMTS Training Series 19 - Introduction To UMTS RAN KPI - V1.0
GSM-to-UMTS Training Series 19 - Introduction To UMTS RAN KPI - V1.0
HUAWEI Confidential
Introduction LTE
There are at least three major key drivers for LTE mobile broa
dband networks:
Demand for higher data-rates
increasing device capabilities, growing mobile data consumption
Huawei Confidential
Page2
DL: ~141Mbps
UL: ~50Mbps
~~150
150
ms
ms
~~100
100
ms
ms
LTE in R8
DL: ~42Mbps
UL: ~11Mbps
HSPA+ in R7/R8
DL: ~14.4Mbps
UL: ~5.76Mbps
HSPA in R5/R6
~70
~70
ms
ms
DL: ~384Kbps
UL: ~384Kbps
DL: ~144-360Kbps
UL: ~144-360Kbps
~45
~45
ms
ms
3G-WCDMA in
R99/R4
~20m
~20m
ss
GPRS/EDGE
Year 2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012 or later
LTE is the next step in the evolution of 3GPP Radio Interfaces to deliver
Global Mobile Broadband.
HUAWEI TECHNOLOGIES CO., LTD.
Huawei Confidential
Page3
Huawei Confidential
Page4
Gb
GPRS
BTS
BSC/PCU
Iu
S3
S6d
NodeB
MME
RNC
HSS
S12
S1-MME
S11
S9
S4
eNodeB
Serving GW
A10/A11
SGi
Corporate
Internet
BTS
BSC
PDSN
Huawei Confidential
Internet
PDN GW
S2a
cdma2000
Operator Service
Network
Gx
S5/8
S1-U
E-UTRAN
PCRF
S6a
S10
UMTS
SAE
Page5
ions and spectrum availability. To this end the specifications include variable cha
nnel bandwidths selectable from 1.4 to 20 MHz, with subcarrier spacing of 15 kH
z.
Channel bandwidth
BWChannel [MHz]
1.4
10
15
20
Transmission
bandwidth
configuration NRB
15
25
50
75
100
Huawei Confidential
Page6
Huawei Confidential
Page 7
Huawei Confidential
Page 8
Accessibility KPIs
Accessibility is the ability of a user to obtain the requested service from the system.
RRC connection and RAB setup are the main procedures of accessibility. These items can
be calculated per cell and per RNC, and the RNC level KPI is calculated by aggregating a
ll the cell counters that belong to the RNC.
Huawei Confidential
Page 9
RRC SR
RRC SR
The RRC setup procedure is trigged by different reasons which are divided into two classes:
This KPI can be used to evaluate the RRC setup success ratio for service causes in a cluster.
Huawei Confidential
Page 10
Troubleshooting RRC SR
Number of RRC Connection Rejects for Cell (UL Power Congestion)
VS.RRC.Rej.ULPower.Cong
Number of RRC Connection Rejects for Cell (DL Power Congestion)
VS.RRC.Rej.DLPower.Cong
Number of RRC Connection Rejects Due to Network Congestion for Cell Number of RR
VS.RRC.Rej.DLIUBBand.Cong
Number of RRC Connection Rejects for Cell (UL CE Resource Congestion)
VS.RRC.Rej.ULCE.Cong
Number of RRC Connection Rejects for Cell (DL CE Resource Congestion)
VS.RRC.Rej.DLCE.Cong
Huawei Confidential
Page 11
Troubleshooting RRC SR
Number of RRC Connection Rejects for Cell (Code Resource Congestion)
VS.RRC.Rej.Code.Cong
Number of RRC Connection Rejects Due to Timeout of RRC CONNECT SETUP COMP
VS.RRC.Rej.RL.Fail
Number of RRC Connection Rejects for Cell (Transmission Setup Failure on Iub Interfa
ce )
VS.RRC.Rej.TNL.Fail
Huawei Confidential
Page 12
RAB SR
AMR RAB SR
This KPI can be used to evaluate the RAB setup success ratio of the AMR service in a cluster.
This KPI cannot be used to evaluate the AMR call setup success ratio unless the related RRC
procedures of all AMR services are successful.
CS RAB SR
This KPI can be used to evaluate the RAB setup success ratio of all CS services in a cluster.
Huawei Confidential
Page 13
RAB SR
PS RAB SR
This KPI can be used to evaluate the RAB setup success ratio of all PS services.
HSDPA RAB SR
This KPI can be used to evaluate the RAB setup success ratio of the PS service carried by HSDPA.
Huawei Confidential
Page 14
RAB SR
HSUPA RAB SR
This KPI can be used to evaluate the RAB setup success ratio of the HSUPA service in a RNC
or a cluster.
Huawei Confidential
Page 15
Troubleshooting RAB SR
Number of Failed CS RAB Establishments for Cell (Radio Network Layer Cause)
VS.RAB.FailEstabCS.RNL
Number of Failed CS RAB Establishments for Cell (Transmission Network Layer Cause)
VS.RAB.FailEstabCS.TNL
Number of Failed CS RAB Establishments for Cell (DL Iub Bandwidth Congestion)
VS.RAB.FailEstabCS.DLIUBBand.Cong
Number of Failed CS RAB Establishments for Cell (UL Iub Bandwidth Congestion)
VS.RAB.FailEstabCS.ULIUBBand.Cong
Number of Failed CS RAB Establishments for Cell (UL CE Congestion)
VS.RAB.FailEstabCS.ULCE.Cong
Number of Failed CS RAB Establishments for Cell (DL CE Congestion)
VS.RAB.FailEstabCS.DLCE.Cong
Number of Failed CS RAB Establishments for Cell (Code Congestion)
VS.RAB.FailEstabCS.Code.Cong
Huawei Confidential
Page 16
Troubleshooting RAB SR
Number of Failed CS RAB Establishments for Cell (UL Power Congestion)
VS.RAB.FailEstabCS.ULPower.Cong
Number of Failed CS RAB Establishments for Cell (DL Power Congestion)
VS.RAB.FailEstabCS.DLPower.Cong
Number of Failed CS RAB Establishments for Cell (Invalid configuration of UE during t
he RB setup procedure)
VS.RAB.FailEstabCS.RBIncCfg
Number of Failed CS RAB Establishments for Cell (Configuration unsupported of UE d
procedure)
VS.RAB.FailEstabCS.UuNoReply
Huawei Confidential
Page 17
Troubleshooting RAB SR
Number of Failed CS RAB Establishments for Cell (Physical channel failure of UE durin
VS.RAB.FailEstabCS.IubFail
Number of Failed CS RAB Establishments for cell (Uu Interface Configuration Failure)
VS.RAB.FailEstabCS.UuFail
Number of Failed CS RAB Establishments for Cell (Unsupported Capabilities)
VS.RAB.FailEstabCS.Unsp
Same for PS.
Huawei Confidential
Page 18
Retainability KPIs
Retainability is defined as the ability of a user to retain its requested service for the desire
d duration once connected. These items can be calculated per cell and per RNC.
The RNC level KPIs can be calculated by aggregating all the cell counters and Iur counter
s.
Huawei Confidential
Page 19
CDR
AMR CDR
This KPI can be used to evaluate the call drop ratio of the AMR service in one RNC or a cluster.
The call drop occurs due to RNC abnormal release trigged by RAB RELEASE REQUEST or
IU RELEASE REQUEST messages.
CS CDR
This KPI can be used to evaluate the call drop ratio of the CS service.
Huawei Confidential
Page 20
CDR
PS CDR
This KPI can be used to evaluate the call drop ratio of all PS services in one RNC or a cluster.
The call drop occurs due to RNC abnormal release trigged by RAB RELEASE REQUEST or
IU RELEASE REQUEST messages.
HSDPA CDR
This KPI can be used to evaluate the call drop ratio of the PS service carried by HSDPA.
Huawei Confidential
Page 21
CDR
HSUPA CDR
This KPI can be used to evaluate the call drop ratio of the PS service carried by HSUPA.
Huawei Confidential
Page 22
CDR
Number of CS RABs Abnormally Released Due to RF for Cell (UL Synchronization Fail)
VS.RAB.AbnormRel.CS.RF.ULSync
Number of CS RABs Abnormally Released Due to RF for Cell (Failure in the Radio Interface
Procedure)
VS.RAB.AbnormRel.CS.RF.UuNoReply
Number of CS RAB Release Requests for Cell (O&M Intervention)
VS.RAB.AbnormRel.CS.OM
Number of CS RAB Release Attempts for Cell (RAB Preemption)
VS.RAB.AbnormRel.CS.Preempt
Number of CS RABs Abnormally Released for Cell (Signaling RLC Reset)
VS.RAB.AbnormRel.CS.RF.SRBReset
Number of CS RABs Abnormally Released for Cell (Iu Interface AAL2 Link Failure)
VS.RAB.AbnormRel.CS.IuAAL2
Same for PS.
Huawei Confidential
Page 23
Mobility KPIs
Mobility KPIs are used to monitoring the successful ratio for several kinds of handover fe
Huawei Confidential
Page 24
HO
SHO SR
This KPI can be used to evaluate the soft handover success ratio in a cluster, including softer
handover.
IRAT HO SR
This KPI can be used to evaluate the CS inter-RAT handover out success ratio.
Huawei Confidential
Page 25
HO
PS IRAT HO SR
This KPI can be used to evaluate the PS inter-RAT handover out success ratio in one RNC or a
cluster.
Huawei Confidential
Page 26
Mobility
Number of Failed Radio Link Additions in Soft Handover for Cell (Configuration Unsupport
ed)
VS.SHO.FailRLAdd.CfgUnsupp
Number of Failed Radio Link Additions in Soft Handover for Cell (Incompatible Simultaneo
us Reconfiguration)
VS.SHO.FailRLAdd.ISR
Number of Failed Radio Link Additions in Soft Handover for Cell (Invalid Configuration)
VS.SHO.FailRLAdd.InvCfg
Number of Failed Radio Link Additions in Soft Handover due to UE No Response for Cell
VS.SHO.FailRLAdd.NoReply
Number of Failed Soft Handovers Between Neighboring Cells Due to Waiting Active Set Up
Huawei Confidential
Page 27
Mobility
Number of Failed CS Outgoing Inter-RAT Handovers for Cell (Configuration Unsupported)
IRATHO.FailOutCS.CfgUnsupp
Number of Failed CS Outgoing Inter-RAT Handovers for Cell (Physical Channel Failure)
IRATHO.FailOutCS.PhyChFail
Number of Times that the Timer Waiting for Iu Release Command Expires in CS Outgoing In
VS.IRATHO.FailOutCS.Abort
Number of Failed CS Inter-RAT HandoversBetween Neighboring Cells Due to UE Fault
VS.IRATHO.FailOutCS.UEFail.GCell
Huawei Confidential
Page 28
Huawei Confidential
Page 29
Huawei Confidential
Page 30
Accessibility KPIs
Accessibility is the ability of a user to obtain the requested service from the system.
RRC connection and RAB setup are the main procedures of accessibility. These items can
be calculated per cell and per RNC, and the RNC level KPI is calculated by aggregating a
ll the cell counters that belong to the RNC.
Huawei Confidential
Page 31
Retainability KPIs
Retainability is defined as the ability of a user to retain its requested service for the desire
d duration once connected. These items can be calculated per cell and per RNC.
The RNC level KPIs can be calculated by aggregating all the cell counters and Iur counter
s.
Huawei Confidential
Page 32
Mobility KPIs
Mobility KPIs are used to monitoring the successful ratio for several kinds of handover fe
Huawei Confidential
Page 33
Conclusion
Understand the KPI
Huawei Confidential
Page 34
Thank You
www.huawei.com
Huawei Confidential