KPI in LTE Radio Network
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Transcript of KPI in LTE Radio Network
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7/25/2019 KPI in LTE Radio Network
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http://www.linkedin.com/pub/ray-khastur/36/965/b7a
KPI in LTE Radio Network
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4G LTE - RF Optimization Objects and Tar
KPI System Overview
LTE KPIs
Accessability Retainability Mobility Laten
RRC
SETUP SR
ERAB
Setup SR
(VoIP/ALL)
Call Setup
SR
(VoIP/ALL)
Call Drop
Rate
(VoIP/ALL)
Call Setup
Complete
Rate(VoIP/ALL)
HHO SR
( Intra/Inter
Frequency)
HO in SR
Inter-RATHHO SR
Acces
Laten
Servic
Laten
InterruLaten
Radio
Network
Unavailabil
ity Rate
Availability
Cell UL/DL
Traffic
Volume
Radio
Bearer
Number
Utilization
Radio Network KPI :
Focus on the radio network performance
Ser
Focus on t
UL/DL
RB
Utility
Rate
Traffic
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Accessibility (1) RRC Setup Success Rate
RRC Setup Success Rate (service)
The RRC setup procedure is trigged by different reasons as identified by the establishmentCa
the RRCConnctionRequest message: emergency, highPriorityAccess, mt-Access, mo-Signalling
delayTolerantAccess-v1020 .The UE sets the establishmentCauseand received by eNodeB. Causes except mo-Signalling a
categorized as service related ones, and the cause of mo-Signalling is categorized as signal re
This KPI evaluates the RRC setup success rate with service related causes in a cell or cluster.
%100_
__ Service
service
service
AttemptConnectionRRC
SuccessConnectionRRCSSRRRC
RRC Setup Success Rate (Signal)
This KPI evaluates the RRC setup success rate with signal related
causes (mo-Signalling)in a cell or cluster.
%100_
__ Signal
Signal
Signal
AttemptConnectionRRC
SuccessConnectionRRCSSRRRC
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Accessibility (2) Counter Mapping for RRC SSR
L.RRC.ConnReq.Att
L.RRC.ConnReq.Succ
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Accessibility (3) QCI Definition
LTE-SAE QoS Class Identifier
There are 9 QCIs defined in 3GPP TS 23.203. Each of QCI has its QoS requirements, and each
has the attribute of QCI.
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Accessibility (4) ERAB Setup Success Rate
VoIP ERAB Setup Success Rate
This KPI can be used to evaluate the ERAB setup success
rate of VoIP service (QCI 1 service) in a cell or cluster.
_ __ _ 100%
_ _
VoIP ERAB SetupSuccessVoIP ERAB SSR
VoIP ERAB SetupAttempt
ERAB Setup Success Rate (All)
This KPI can be used to evaluate the ERAB setup successrate of all services including the VoIP service in a cell or
a cluster.
__ ( ) 100%
_
ERAB SetupSuccessERAB SSR ALL
ERAB SetupAttempt
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Accessibility (5) Counter Mapping for ERAB SSR
ERAB Se
Counte
ERAB Se
ERAB SeCounte
ERAB
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Accessibility (6) Call Setup Success Rate
_ 1 _( ) * *
_ 1 _
Service
Service
RRC ConnectionSuccess S SIGConnectionEstablishSuccess ERAB SetupSucCSSR ALL
RRC ConnectionAttempt S SIGConnectionEstablishAttempt ERAB SetupAtte
VoIP Call Setup Success Rate (VoIP CSSR)
This KPI evaluates the success rate of the whole setup procedure for VoIP service (QCI 1
service) in a cell or cluster, which mainlyincludes three phases : RRC setup phase, S1
Signaling connection establishment phase and VoIP E-RAB setup phase:
_ 1 _ __ * *
_ 1 _ _
Service
Service
RRC ConnectionSuccess S SIGConnectionEstablishSuccess VoIP ERAB SVoIP CSSR
RRC ConnectionAttempt S SIGConnectionEstablishAttempt VoIP ERAB S
Call Setup Success Rate (ALL)
This KPI can be used to evaluate the call setup success rate of all services including the VoIPservice in a cell or a cluster. This KPI mainlyincludes three phases : RRC setup phase, S1 Signa
connection establishment phase and service E-RAB setup phase:
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Accessibility (7) Counter Mapping for CSSR
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Retainability (1) Call Drop Rate
VoIP Call Drop Rate
This KPI can be used to evaluate the call drop rate of VoIP service (QCI 1 service) in a cell or clus
happen when eNode initiate active ERAB (with data in buffer) release process by E-RAB Release
Context Release Requestmessage with Cause field with abnormal reasons (the cause other tha
Detach,User Inactivity, cs fallback triggered, UE Not Available For PS Service,or Inter-RAT redire
other E-RAB releases are consider as normal E-RAB release.
Call Drop Rate(ALL)
This KPI can be used to evaluate the call drop rate of all services in
a cell or a cluster, including VoIP service.
_
___
ERABVoIP
AbERABVoIPCDRVoIP
_ Re( ) 100%
_ Re
ERAB Abnormal leaseCDR ALL
ERAB lease
Call Drop Rate(Always Online)
This KPI can be used to evaluate the call drop rate of all the services, including the VoIP service
online state is active. In always online state, the E-RAB number of UE entering the un-synchron
synchronous state will be considered for the KPI calculating.
_ 100%Re
ERABAbnormalReleaseOfAlwaysOnlineAlwaysOnline CDR
ERAB leaseOfAlwaysOnline
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Retainability (2) Counter Mapping for Call Drop Rate
Normal and Abnormal
release Counters based on
the cause
No
re
th
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Retainability (3) - Call Setup Complete Rate
_ 1 _ ( ) * * *
_ 1 _
Service
Service
RRC ConnectionSuccess S SIGConnectionEstablishSuccess ERAB SetupSuccess ERABCSTR ALL
RRC ConnectionAttempt S SIGConnectionEstablishAttempt ERAB SetupAttempt E
_ 1 _ _ _ __ * * *
_ 1 _ _
Service
Service
RRC ConnectionSuccess S SIGConnectionEstablishSuccess VoIP ERAB SetupSuccess VoIP ERAB NVoIP CSTR
RRC ConnectionAttempt S SIGConnectionEstablishAttempt VoIP ERAB SetupAttempt Vo
_ IP ERAB
VoIP Call Setup Complete Rate (VoIP CSTR)This KPI evaluates the call Setup Complete Rate for VoIP service (QCI 1 service) in a cell or clus
which means the rate of the VoIP service can be normally terminated once user do the attemp
setup the service. And it can include4 phases: RRC setup phase, S1 Signaling connection
establishment phase, VoIP E-RAB setup phase and VoIP service E-RAB release phase;
Call Setup Complete Rate (ALL)The similar as upper KPI, this KPI will evaluate the success rate in totally for 4 phases: RRC setu
S1 Signaling connection establishment phase, service E-RAB setup phase and service E-RAB rele
phase;
Call Setup Complete Rate (Always Online)
The similar as upper KPI, this KPI will evaluate the success rate in totally for 4 phases: RRC setu
S1 Signaling connection establishment phase, service E-RAB setup phase and service E-RAB re
phase (when the always online state is active);_ 1 _
( ) * * *_ 1 _
Service
Service
RRC ConnectionSuccess S SIGConnectionEstablishSuccess ERAB SetupSuccess ERABAbnormalReleaseOCSTR AlwaysOnline
RRC ConnectionAttempt S SIGConnectionEstablishAttempt ERAB SetupAttempt
ReERAB leaseOfAlw
b l ( ) f
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Retainability (4) - Counter Mapping for CSCR
b l ( ) d ( )
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Mobility (1) Intra-LTE Handover (Out) Success RateIntra-frequency Handover Out Success Rate
This KPI can be used to evaluate the intra-frequency handover
out success rate in a cell or cluster.
%100_
_
__
ptHOOutAttemIntraF
ssHOOutSucceIntraF
SRHOOutIntraF
Inter-frequency Handover Out Success RateThis KPI can be used to evaluate the inter-frequency handover
out success rate in a cell or cluster.
%100_
___
ptHOOutAttemInterF
ssHOOutSucceInterFSRHOOutInterF
M bili (2) C M i f I LTE HO SR
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Mobility (2) Counter Mapping for Intra-LTE HO SR
Handover Attempt Counters
Handover Success Counters
M bilit (3) I t LTE H d I S R t
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Mobility (3) - Intra-LTE Handover In Success Rate
Handover In Success Rate
This KPI can be used to evaluate the handover in success
rate in a cell or cluster.
%100_ tHOInAttemp
sHOInSuccesSRHOIn
M bilit (4) C t M i f I t LTE HO I SR
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Mobility (4) - Counter Mapping for Intra-LTE HO In SR
HO in Attempt Counters
HO in Success Counters
M bilit (5) I t RAT H d S R t
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Mobility (5) Inter-RAT Handover Success Rate
%100_2_
_2__2_
AttemptOutGLIRATHO
SuccessOutGLIRATHOSRGLIRATHO out
Inter-RAT Handover Success Rate (LTE to WCDMA)
This KPI can be used to evaluate the inter-RAT handover success rate
from LTE to WCDMA in a cluster.
%100_2_
_2__2_
AttemptOutWLIRATHO
SuccessOutWLIRATHOSRWLIRATHO out
Inter-RAT Handover Success Rate (LTE to GERAN)
This KPI can be used to evaluate the inter-RAT handover success rate from LTE to GERAN in a cl
Mobility (6) Inter RAT Handover Success Rate
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Mobility (6) Inter-RAT Handover Success Rate
Inter-RAT Handover Success Rate (LTE to CDMA2000)
This KPI can be used to evaluate the inter-RAT handover success rate from
LTE to CDMA2000 in a cluster.
_ 2 __ 2 _ 100%
_ 2 _out
IRATHO L C SuccessOutIRATHO L C SR
IRATHO L C AttemptOut
Mobility (7) Counter Mapping for Inter RAT HO SR
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Mobility (7) Counter Mapping for Inter-RAT HO SR
B point , HO attempt, and
distinguish the target system by anelement targetRAT-Type in the
message
C point, HO
Success
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