5 KPI Reference About This Chapter This describes the key performance indicators (KPIs). According to the indicated performance, KPIs are classified into CS KPIs and PS KPIs. 5.1 Introduction to KPI This describes the KPI, which is used to monitor the network performance and detect network problems. 5.2 CS Accessibility KPIs This describes the CS accessibility KPIs that mainly indicate the call success rate when a MS accesses the network. Low accessibility KPIs directly lead to low user satisfaction. 5.3 CS Retainability KPIs This describes the CS Retainability KPIs that indicate the ratio of moving MSs to all MSs, the moving frequency, and the success rate of handovers on the move. In addition, these KPIs indicate the capability of providing continuous services. A low handover success rate may lead to a high call drop rate. A low success rate leads to low user satisfaction. 5.4 CS Resource Utilization KPIs This describes the CS Resource Utilization KPIs that are used to monitor the load of hot cells and the network. These KPIs can serve as references for capacity expansion. The traffic volume KPIs help to obtain the ratio of busy-hour traffic to idle-hour traffic, to evaluate the utilization of system resources, and to adjust charges. The equipment availability KPIs help to know the running status of equipment, such as the running status of channels. If these KPIs are low, equipment and transmission may be faulty. 5.5 PS Throughput KPIs This describes the PS Throughput KPIs that are used to monitor the load of hot cells and the network and to obtain service models. These KPIs can serve as references for capacity expansion. The PS Throughput KPIs help to obtain the busy-hour PS traffic and the idle-hour PS traffic, to evaluate the utilization of system resources, and to facilitate service assessment of carriers. 5.6 PS Transmission KPIs This describes the PS Transmission KPIs that indicate the quality of radio transmission links in a cell. If the RLC data block retransmission rate in a cell is high, the quality of the radio transmission links in the cell is poor. Therefore, take corresponding measures, such as RF optimization. HUAWEI BSC6000 Base Station Subsystem BSS Performance Management Guidelines 5 KPI Reference Issue 01 (2007-11-26) Huawei Technologies Proprietary 5-1
Transcript
5 KPI Reference
About This Chapter
This describes the key performance indicators (KPIs). According to the indicated performance,KPIs are classified into CS KPIs and PS KPIs.
5.1 Introduction to KPIThis describes the KPI, which is used to monitor the network performance and detect networkproblems.
5.2 CS Accessibility KPIsThis describes the CS accessibility KPIs that mainly indicate the call success rate when a MSaccesses the network. Low accessibility KPIs directly lead to low user satisfaction.
5.3 CS Retainability KPIsThis describes the CS Retainability KPIs that indicate the ratio of moving MSs to all MSs, themoving frequency, and the success rate of handovers on the move. In addition, these KPIsindicate the capability of providing continuous services. A low handover success rate may leadto a high call drop rate. A low success rate leads to low user satisfaction.
5.4 CS Resource Utilization KPIsThis describes the CS Resource Utilization KPIs that are used to monitor the load of hot cellsand the network. These KPIs can serve as references for capacity expansion. The traffic volumeKPIs help to obtain the ratio of busy-hour traffic to idle-hour traffic, to evaluate the utilizationof system resources, and to adjust charges. The equipment availability KPIs help to know therunning status of equipment, such as the running status of channels. If these KPIs are low,equipment and transmission may be faulty.
5.5 PS Throughput KPIsThis describes the PS Throughput KPIs that are used to monitor the load of hot cells and thenetwork and to obtain service models. These KPIs can serve as references for capacity expansion.The PS Throughput KPIs help to obtain the busy-hour PS traffic and the idle-hour PS traffic, toevaluate the utilization of system resources, and to facilitate service assessment of carriers.
5.6 PS Transmission KPIsThis describes the PS Transmission KPIs that indicate the quality of radio transmission links ina cell. If the RLC data block retransmission rate in a cell is high, the quality of the radiotransmission links in the cell is poor. Therefore, take corresponding measures, such as RFoptimization.
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5.7 PS Accessibility KPIsThis describes the PS Accessibility KPIs that indicate whether MSs can easily access cells. PoorPS Accessibility KPIs directly affect user satisfaction.
5.8 PS Resource Utilization KPIsThis describes the PS Resource Utilization KPIs that indicate the utilization of the networkresource and the busy states of services. Thus, these KPIs can be used to guide networkexpansion.
5.9 PS Retainability KPIsThis describes the PS Retainability KPIs that mainly involve the uplink and downlink TBF calldrop rates. These KPIs indicate the capability of providing continuous services by the networkand are directly related to user satisfaction. Thus, an increase in call drop rate directly leads toa decrease in user satisfaction.
5.10 PS End-to-End Delay KPIsThis describes the PS End-to-End Delay KPIs that indicate the service response speed of thenetwork. Long delay affects user satisfaction.
5.11 PS End-to-End Quality KPIsThis describes the PS end-to-end quality KPIs. They involve the performance factors ofterminals, the radio access network, and the core network. Now, the main performance problemcomes from the radio access network. Therefore, these KPIs indicate the end-to-end service datalink bearing capability of the GPRS network, which are directly related to user satisfaction.
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5.1 Introduction to KPIThis describes the KPI, which is used to monitor the network performance and detect networkproblems.
KPI AttributesEach KPI has the following attributes:
l Measurement object: indicates the measurement scope of a KPI, such as BSC level, PCUlevel, or cell level.
l Measurement set: describes the signaling or algorithm of collecting a KPI, such as callaccess and TBF establishment.
l Measurement service: indicates the service type of a KPI, such as CS service or PS service.
Measurement SetFigure 5-1 shows the measurement set of the CS domain performance counters. Callmeasurement and channel measurement are very important. Most of performance counters aredistributed in the two measurement sets.
l Call measurement: refers to the measurement of call services in a BSC.
l Channel measurement: refers to the measurement of various counters related to channels.
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Figure 5-1 Classification of the measurement set of the performance counters in the CS domain
Performancemeasurement Call measurement
Channelmeasurement
BTS managementmeasurement
System loadmeasurement
Pagingmeasurement
Measurement reportmeasurement
Resourcemeasurement
SCCP measurement
MTP3 measurement
LAPD measurement
PCU measurement
MSC measurement
CBC measurement
BSC overallperformancemeasurement
Figure 5-2 shows the measurement sets of the performance counters in the PS domain. Cellperformance measurement is very important. Most of performance counters are distributed inthis measurement set.
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Collection of KPIsCS KPIs per cell and KPIs per BSC can be viewed and analyzed on the M2000. KPIs can beexported from the M2000 as .csv, .xls, .html, or .txt files. In addition, CS KPIs per BSC can beviewed and analyzed through the BSC6000 intelligent report system. KPIs can be exported fromthe BSC6000 intelligent report system as .csv, .xls, .html, or .txt files.
PS KPIs, such as Throughput KPIs, Transmission KPIs, Accessibility KPIs, Resource utilizationKPIs, and Retainability KPIs can be viewed and analyzed on the M2000. KPIs can be exportedfrom the M2000 as .csv, .xls, .html, or .txt files.
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In addition, PS KPIs can be set and queried through the OMC traffic console.
End-to-end performance KPIs can be queried through Drive Test and Call Quality Test.
NOTE
The measurement object has time spans, and KPIs are collected on schedule; therefore, KPI collection mayspan different periods.
If the KPIs reflect the actual status of the measurement object at a moment, the KPI collection inevitablyspans different periods.
5.2 CS Accessibility KPIsThis describes the CS accessibility KPIs that mainly indicate the call success rate when a MSaccesses the network. Low accessibility KPIs directly lead to low user satisfaction.
5.2.1 Immediate Assignment Success RateThis describes the formula, type, and unit of the Immediate Assignment Success Rate.
5.2.2 SDCCH Congestion Rate (All Channels Busy)This describes the formula, type, and unit of the SDCCH Congestion Rate (All Channels Busy).
5.2.3 Call Drop Rate on SDCCHThis describes the formula, type, and unit of the Call Drop Rate on SDCCH.
5.2.4 TCH Assignment Success RatioThis describes the formula, type, and unit of the TCH Assignment Success Ratio.
5.2.5 TCH Congestion Rate (All Channels Busy)This describes the formula, type, and unit of the TCH Congestion Rate (All Channels Busy).
5.2.6 TCH Overflow RateThis describes the formula, type, unit, and associated original KPIs of the TCH Overflow Rate.
5.2.7 TCH Seizure Success RateThis describes the formula, type, and unit of the TCH Seizure Success Rate.
5.2.8 Success Rate of Call SetupThis describes the formula, type, and unit of the Success Rate of Call Setup.
5.2.9 BSS Call Establishment Success RateThis describes the formula, type, and unit of the BSS Call Establishment Success Rate.
5.2.10 Paging Overload RateThis describes the formula, type, and unit of the Paging Overload Rate.
5.2.1 Immediate Assignment Success RateThis describes the formula, type, and unit of the Immediate Assignment Success Rate.
Description Paging Overload Rate = (PCH Overloads due to CS Service CountedThrough the Indications from the Abis Interface + PCH Overloads dueto PS Service Counted through the Indications from the Abis Interface)/(Paging Requests on the Abis Interface (CS Service) + Paging Requestson the Abis Interface (PS Service)) x 100%
Type Customized KPI
Unit %
5.3 CS Retainability KPIsThis describes the CS Retainability KPIs that indicate the ratio of moving MSs to all MSs, themoving frequency, and the success rate of handovers on the move. In addition, these KPIsindicate the capability of providing continuous services. A low handover success rate may leadto a high call drop rate. A low success rate leads to low user satisfaction.
5.3.1 TCH Call Drop Rate (Including Handover)This describes the formula, type, and unit of the TCH Call Drop Rate (Including Handover).
5.3.2 TCH Call Drop Rate (Excluding Handover)This describes the formula, type, and unit of the TCH Call Drop Rate (Excluding Handover).
5.3.3 Traffic Call Drop RateThis describes the formula, type, and unit of the Traffic Call Drop Rate.
5.3.4 TCH Radio Loss RateThis describes the formula, type, and unit of the TCH Radio Loss Rate.
5.3.5 TCH Handover Loss RateThis describes the formula, type, and unit of the TCH Handover Loss Rate.
5.3.6 Handover Success RateThis describes the formula, type, and unit of the Handover Success Rate.
5.3.7 Radio Handover Success RateThis describes the formula, type, and unit of the Radio Handover Success Rate.
5.3.8 Internal Handover Success Ratio per CellThis describes the formula, type, and unit of the Internal Handover Success Ratio per Cell.
5.3.9 External Incoming Cell Handover Success RateThis describes the formula, type, and unit of the External Incoming Cell Handover Success Rate.
5.3.10 External Outgoing Cell Handover Success RateThis describes the formula, type, and unit of the External Outgoing Cell Handover Success Rate.
5.3.11 Intra-BSC Radio Handover Success RateThis describes the formula, type, and unit of the Intra-BSC Radio Handover Success Rate.
5.3.12 External Incoming Cell Radio Handover Success Rate
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This describes the formula, type, and unit of the External Incoming Cell Radio Handover SuccessRate.
5.3.13 External Outgoing Cell Radio Handover Success RateThis describes the formula, type, and unit of the External Outgoing Cell Radio Handover SuccessRate.
5.3.14 Dual-Band Handover Success Rate (900M/850M-1800M/1900M)This describes the formula, type, and unit of the Dual-Band Handover Success Rate (900M/850M–1800M/1900M).
5.3.15 Dual-Band Handover Success Rate (1800M/1900M-900M/850M)This describes the formula, type, and unit of the Dual-Band Handover Success Rate (1800M/1900M–900M/850M).
5.3.16 Call Complete Success RateThis describes the formula, type, and unit of the Call Complete Success Rate.
5.3.1 TCH Call Drop Rate (Including Handover)This describes the formula, type, and unit of the TCH Call Drop Rate (Including Handover).
Table 5-11 TCH Call Drop Rate (Including Handover)
Counter TCH Call Drop Rate (Including Handover)
Description
TCH Call Drop Rate = Call Drops on TCH/(Successful TCH Seizures(Signaling Channel) + Successful TCH Seizures (Traffic Channel) +Successful TCH Seizures in TCH Handovers (Traffic Channel)) x 100%
Type Customized KPI
Unit %
5.3.2 TCH Call Drop Rate (Excluding Handover)This describes the formula, type, and unit of the TCH Call Drop Rate (Excluding Handover).
Table 5-12 TCH Call Drop Rate (Excluding Handover)
Counter TCH Call Drop Rate (Excluding Handover)
Description TCH Call Drop Rate = Call Drops on TCH in Stable State (TrafficChannel)/Successful TCH Seizures (Traffic Channel)) x 100%
Type Customized KPI
Unit %
5.3.3 Traffic Call Drop RateThis describes the formula, type, and unit of the Traffic Call Drop Rate.
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Description Traffic Call Drop Rate = 60 x Traffic Volume on TCH/Call Drops on TCH
Type Customized KPI
Unit None
5.3.4 TCH Radio Loss RateThis describes the formula, type, and unit of the TCH Radio Loss Rate.
Table 5-14 TCH Radio Loss Rate
Counter TCH Radio Loss Rate
Description
TCH Radio Loss Rate = (Call Drops on Radio Interface in Stable State +Call Drops due to ERR IND Received on TCHF in Stable State (T200Expired) (Signaling Channel) + Call Drops due to ERR IND Received onTCHF in Stable State (Unsolicited DM Response) (Signaling Channel) +Call Drops due to ERR IND Received on TCHF in Stable State (SequenceError) (Signaling Channel) + Call Drops due to ERR IND Received onTCHH in Stable State (T200 Expired) (Signaling Channel) + Call Dropsdue to ERR IND Received on TCHH in Stable State (Unsolicited DMResponse) (Signaling Channel) + Call Drops due to ERR IND Received onTCHH in Stable State (Sequence Error) (Signaling Channel) + Call Dropsdue to CONN FAIL Received on TCHF in Stable State (Radio LinkFailure) (Signaling Channel) + Call Drops due to CONN FAIL Receivedon TCHF in Stable State (HO Access Failure) (Signaling Channel) + CallDrops due to CONN FAIL Received on TCHF in Stable State (OMIntervention) (Signaling Channel) + Call Drops due to CONN FAILReceived on TCHF in Stable State (Radio Resource Unavailable)(Signaling Channel) + Call Drops due to CONN FAIL Received on TCHFin Stable State (Other Causes) (Signaling Channel) + Call Drops due toCONN FAIL Received on TCHH in Stable State (Radio Link Failure)(Signaling Channel) + Call Drops due to CONN FAIL Received on TCHHin Stable State (HO Access Failure) (Signaling Channel) + Call Drops dueto CONN FAIL Received on TCHH in Stable State (OM Intervention)(Signaling Channel) + Call Drops due to CONN FAIL Received on TCHHin Stable State (Radio Resource Unavailable) (Signaling Channel) + CallDrops due to CONN FAIL Received on TCHH in Stable State (OtherCauses) (Signaling Channel) + Call Drops due to REL IND Received onTCHF (Signaling Channel) + Call Drops due to REL IND Received onTCHH (Signaling Channel))/ (Successful TCH Seizures (SignalingChannel) + Successful TCH Seizures (Traffic Channel) + Successful TCHSeizures in TCH handovers (Traffic Channel))*100%
Type Customized KPI
Unit %
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5.3.12 External Incoming Cell Radio Handover Success RateThis describes the formula, type, and unit of the External Incoming Cell Radio Handover SuccessRate.
Table 5-22 External Incoming Cell Radio Handover Success Rate
Counter External Incoming Cell Radio Handover Success Rate
Description External Incoming Cell Radio Handover Success Rate = SuccessfulExternal Incoming Cell Handovers per BSC/Incoming External Inter-Cell Handover Responses per BSC x 100%
Type Customized KPI
Unit %
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5.3.13 External Outgoing Cell Radio Handover Success RateThis describes the formula, type, and unit of the External Outgoing Cell Radio Handover SuccessRate.
Table 5-23 External Outgoing Cell Radio Handover Success Rate
Counter External Outgoing Cell Radio Handover Success Rate
Description External Outgoing Cell Handover Success Rate = Successful ExternalOutgoing Cell Handovers per BSC/External Outgoing Inter-CellHandover Commands x 100%
5.3.16 Call Complete Success RateThis describes the formula, type, and unit of the Call Complete Success Rate.
Table 5-26 Call Complete Success Rate
Counter Call Complete Success Rate
Description Call Complete Success Rate = (1 - SDCCH Congestion Rate) x (1 -SDCCH Call Drop Rate) x (1 - TCH Congestion Rate) x (1 - TCHCall Drop Rate) x 100%
Type Customized KPI
Unit %
5.4 CS Resource Utilization KPIsThis describes the CS Resource Utilization KPIs that are used to monitor the load of hot cellsand the network. These KPIs can serve as references for capacity expansion. The traffic volumeKPIs help to obtain the ratio of busy-hour traffic to idle-hour traffic, to evaluate the utilizationof system resources, and to adjust charges. The equipment availability KPIs help to know therunning status of equipment, such as the running status of channels. If these KPIs are low,equipment and transmission may be faulty.
5.4.1 TCH Traffic VolumeThis describes the meaning, type, and unit of the TCH Traffic Volume.
5.4.2 SDCCH Traffic VolumeThis describes the meaning, type, and unit of the SDCCH Traffic Volume.
5.4.3 TCHH Traffic VolumeThis describes the meaning, type, and unit of the TCHH Traffic Volume.
5.4.4 TCH AvailabilityThis describes the formula, type, and unit of the TCH Availability.
5.4.5 TRX AvailabilityThis describes the formula, type, and unit of the TRX Availability.
5.4.6 SDCCH AvailabilityThis describes the formula, type, and unit of the SDCCH Availability.
5.4.1 TCH Traffic VolumeThis describes the meaning, type, and unit of the TCH Traffic Volume.
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5.4.5 TRX AvailabilityThis describes the formula, type, and unit of the TRX Availability.
Table 5-31 TRX Availability
Counter TRX AvailabilityNOTE
The TRX Availability helps to calculate the number of the available TRXs in theBM.
Description TRX Availability = Available TRXs/Activated TRXs x 100%
Type Analyzed KPI
Unit %
5.4.6 SDCCH AvailabilityThis describes the formula, type, and unit of the SDCCH Availability.
Table 5-32 SDCCH Availability
Counter SDCCH Availability
Description SDCCH Availability = Mean Number of Available Channels (SDCCH)/Mean Number of Dynamically Configured Channels (SDCCH) x 100%
Type Analyzed KPI
Unit %
5.5 PS Throughput KPIsThis describes the PS Throughput KPIs that are used to monitor the load of hot cells and thenetwork and to obtain service models. These KPIs can serve as references for capacity expansion.The PS Throughput KPIs help to obtain the busy-hour PS traffic and the idle-hour PS traffic, toevaluate the utilization of system resources, and to facilitate service assessment of carriers.
5.5.1 Uplink RLC Data Block ThroughputThis describes the formula, type, unit, and associated original KPIs of the Uplink RLC DataBlock Throughput.
5.5.2 Downlink RLC Data Block Throughput
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This describes the formula, type, unit, and associated original KPIs of the Downlink RLC DataBlock Throughput.
5.5.3 Uplink EGPRS RLC Data Block ThroughputThis describes the formula, type, unit, and associated original KPIs of the Uplink EGPRS RLCData Block Throughput.
5.5.4 Downlink EGPRS RLC Data Block ThroughputThis describes the formula, type, unit, and associated original KPIs of the Downlink EGPRSRLC Data Block Throughput.
5.5.5 Uplink LLC PDU ThroughputThis describes the formula, type, and unit of the Uplink LLC PDU Throughput.
5.5.6 Downlink LLC PDU ThroughputThis describes the formula, type, and unit of the Downlink LLC PDU Throughput.
5.5.7 Downlink NS_PDU Mean ThroughputThis describes the formula, type, unit, and associated original KPIs of the Downlink NS_PDUMean Throughput.
5.5.8 Ratio of UL Data Flow to DL Data Flow on the Um InterfaceThis describes the formula, type, unit, and associated original KPIs of the Ratio of UL Data Flowto DL Data Flow on the Um Interface.
5.5.1 Uplink RLC Data Block ThroughputThis describes the formula, type, unit, and associated original KPIs of the Uplink RLC DataBlock Throughput.
Table 5-33 Uplink RLC Data Block Throughput (KB)
Counter Uplink RLC Data Block Throughput (KB)
Description Total bytes of uplink GPRS RLC data blocks x 8/1024
Measurement Object
Cells
AssociatedOriginalKPIs
Uplink GPRS RLC data block bytes =Number of Uplink RLC Data Blocks Using CS1 x 23 + Number ofUplink RLC Data Blocks Using CS2 x 34 + Number of Uplink RLCData Blocks Using CS3 x 40 + Number of Uplink RLC Data BlocksUsing CS4 x 54
Type Calculated KPI
Unit KB
5.5.2 Downlink RLC Data Block ThroughputThis describes the formula, type, unit, and associated original KPIs of the Downlink RLC DataBlock Throughput.
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Table 5-34 Downlink RLC Data Block Throughput (KB)
Counter Downlink RLC Data Block Throughput (KB)
Description
Total bytes of downlink GPRS RLC data blocks x 8/1024
Measurement Object
Cells
AssociatedOriginalKPIs
Downlink GPRS RLC data block bytes =Number of Downlink RLC Data Blocks Using CS1 x 23 + Number ofDownlink RLC Data Blocks Using CS2 x 34 + Number of Downlink RLCData Blocks Using CS3 x 40 + Number of Downlink RLC Data BlocksUsing CS4 x 54
Type Calculated KPI
Unit KB
5.5.3 Uplink EGPRS RLC Data Block ThroughputThis describes the formula, type, unit, and associated original KPIs of the Uplink EGPRS RLCData Block Throughput.
Table 5-35 Uplink EGPRS RLC Data Block Throughput (KB)
Counter Uplink EGPRS RLC Data Block Throughput (KB)
Description
Total bytes of uplink EGPRS RLC data blocks x 8/1024
Measurement Object
Cells
AssociatedOriginalKPIs
Uplink EGPRS RLC data block bytes =Number of Uplink EGPRS RLC Data Blocks Using MSC1 x 22 + Numberof Uplink EGPRS RLC Data Blocks Using MSC2 x 28 + Number ofUplink EGPRS RLC Data Blocks Using MSC3 x 37 + Number of UplinkEGPRS RLC Data Blocks Using MSC4 x 44 + Number of Uplink EGPRSRLC Data Blocks Using MSC5 x 56 + Number of Uplink EGPRS RLCData Blocks Using MSC6 x 74 + Number of Uplink EGPRS RLC DataBlocks Using MSC7 x 56 + Number of Uplink EGPRS RLC Data BlocksUsing MSC8 x 68 + Number of Uplink EGPRS RLC Data Blocks UsingMSC8 x 74
Type Calculated KPI
Unit KB
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5.5.4 Downlink EGPRS RLC Data Block ThroughputThis describes the formula, type, unit, and associated original KPIs of the Downlink EGPRSRLC Data Block Throughput.
Table 5-36 Downlink EGPRS RLC Data Block Throughput (KB)
Counter Downlink EGPRS RLC Data Block Throughput (KB)
Description Total bytes of downlink EGPRS RLC data blocks x 8/1024
Measurement Object
Cells
AssociatedOriginalKPIs
Downlink EGPRS RLC data blocks =Number of Downlink EGPRS RLC Data Blocks Using MSC1 x 22 +Number of Downlink EGPRS RLC Data Blocks Using MSC2 x 28 +Number of Downlink EGPRS RLC Data Blocks Using MSC3 x 37 +Number of Downlink EGPRS RLC Data Blocks Using MSC4 x 44 +Number of Downlink EGPRS RLC Data Blocks Using MSC5 x 56 +Number of Downlink EGPRS RLC Data Blocks Using MSC6 x 74 +Number of Downlink EGPRS RLC Data Blocks Using MSC7 x 56 +Number of Downlink EGPRS RLC Data Blocks Using MSC8 x 68 +Number of Downlink EGPRS RLC Data Blocks Using MSC9 x 74
Type Calculated KPI
Unit KB
5.5.5 Uplink LLC PDU ThroughputThis describes the formula, type, and unit of the Uplink LLC PDU Throughput.
Table 5-37 Uplink LLC PDU Throughput
Counter Uplink LLC PDU Throughput
Description Total Bytes of Uplink LLC_PDUs x 8/1024
MeasurementObject
Cells
Type Calculated KPI
Unit KB
5.5.6 Downlink LLC PDU ThroughputThis describes the formula, type, and unit of the Downlink LLC PDU Throughput.
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5.5.7 Downlink NS_PDU Mean ThroughputThis describes the formula, type, unit, and associated original KPIs of the Downlink NS_PDUMean Throughput.
Table 5-39 Downlink NS_PDU Mean Throughput
Counter Downlink NS_PDU Mean Throughput
Description
Total bytes of downlink NS PDUs x 8/(1024 x measurement period x 60)
MeasurementObject
Cells
Associated OriginalKPIs
Total bytes of NS PDUs sent by NS sublayer
Type Calculated KPI
Unit KB
5.5.8 Ratio of UL Data Flow to DL Data Flow on the Um InterfaceThis describes the formula, type, unit, and associated original KPIs of the Ratio of UL Data Flowto DL Data Flow on the Um Interface.
Table 5-40 Ratio of UL Data Flow to DL Data Flow on the Um Interface (%)
Counter Ratio of UL Data Flow to DL Data Flow on the Um Interface (%)
RLCPayloadUL + EGPRSRLCPayloadUL:Number of Uplink RLC Data Blocks Using CS1Number of Uplink RLC Data Blocks Using CS2Number of Uplink RLC Data Blocks Using CS3Number of Uplink RLC Data Blocks Using CS4Number of Uplink EGPRS RLC Data Blocks Using MCS1Number of Uplink EGPRS RLC Data Blocks Using MCS2Number of Uplink EGPRS RLC Data Blocks Using MCS3Number of Uplink EGPRS RLC Data Blocks Using MCS4Number of Uplink EGPRS RLC Data Blocks Using MCS5Number of Uplink EGPRS RLC Data Blocks Using MCS6Number of Uplink EGPRS RLC Data Blocks Using MCS7Number of Uplink EGPRS RLC Data Blocks Using MCS8Number of Uplink EGPRS RLC Data Blocks Using MCS9RLCPayloadDL + EGPRSRLCPayloadDL:Number of Downlink RLC Data Blocks Using CS1Number of Downlink RLC Data Blocks Using CS2Number of Downlink RLC Data Blocks Using CS3Number of Downlink RLC Data Blocks Using CS4Number of Downlink RLC Data Blocks Using MCS1Number of Downlink RLC Data Blocks Using MCS2Number of Downlink RLC Data Blocks Using MCS3Number of Downlink RLC Data Blocks Using MCS4Number of Downlink RLC Data Blocks Using MCS5Number of Downlink RLC Data Blocks Using MCS6Number of Downlink RLC Data Blocks Using MCS7Number of Downlink RLC Data Blocks Using MCS8Number of Downlink RLC Data Blocks Using MCS9
Type Calculated KPI
Unit KB
5.6 PS Transmission KPIsThis describes the PS Transmission KPIs that indicate the quality of radio transmission links ina cell. If the RLC data block retransmission rate in a cell is high, the quality of the radiotransmission links in the cell is poor. Therefore, take corresponding measures, such as RFoptimization.
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5.6.1 Uplink RLC Data Retransmission RateThis describes the formula, type, unit, and associated original KPIs of the Uplink RLC DataRetransmission Rate.
5.6.2 Downlink RLC Data Retransmission RateThis describes the formula, type, unit, and associated original KPIs of the Downlink RLC DataRetransmission Rate.
5.6.3 Uplink EGPRS RLC Data Retransmission RateThis describes the formula, type, unit, and associated original KPIs of the Uplink EGPRS RLCData Retransmission Rate.
5.6.4 Downlink EGPRS RLC Data Retransmission RateThis describes the formula, type, unit, and associated original KPIs of the Downlink EGPRSRLC Data Retransmission Rate.
5.6.1 Uplink RLC Data Retransmission RateThis describes the formula, type, unit, and associated original KPIs of the Uplink RLC DataRetransmission Rate.
Table 5-41 Uplink RLC Data Retransmission Rate (%)
Counter Uplink RLC Data Retransmission Rate (%)
Description
1 – Number of uplink RLC data blocks received by the BSS/Number of uplinkRLC data blocks sent by the MS
Measurement Object
Cells
AssociatedOriginalKPIs
Number of uplink RLC data blocks received by the BSS =Number of Uplink RLC Data Blocks Using CS1 + Number of Uplink RLCData Blocks Using CS2 + Number of Uplink RLC Data Blocks UsingCS3 + Number of Uplink RLC Data Blocks Using CS4Number of unlink RLC data blocks sent by the MS =Total number of uplink RLC data blocks
Type Calculated KPI
Unit %
5.6.2 Downlink RLC Data Retransmission RateThis describes the formula, type, unit, and associated original KPIs of the Downlink RLC DataRetransmission Rate.
Table 5-42 Downlink RLC Data Retransmission Rate (%)
Counter Downlink RLC Data Retransmission Rate (%)
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Description 1 – Number of Downlink EGPRS RLC Data Blocks received by the MS/Number of Downlink EGPRS RLC Data Blocks sent by the BSS
Measurement Object
Cells
AssociatedOriginalKPIs
Total number of downlink RLC data blocksNumber of Downlink RLC Data Blocks Using CS1 + Number ofDownlink RLC Data Blocks Using CS2 + Number of Downlink RLCData Blocks Using CS3 + Number of Downlink RLC Data Blocks UsingCS4
Type Calculated KPI
Unit %
5.6.3 Uplink EGPRS RLC Data Retransmission RateThis describes the formula, type, unit, and associated original KPIs of the Uplink EGPRS RLCData Retransmission Rate.
Table 5-43 Uplink EGPRS RLC Data Retransmission Rate (%)
Counter Uplink EGPRS RLC Data Retransmission Rate (%)
Description 1 – Number of Uplink EGPRS RLC Data Blocks received by the BSS/Number of Uplink EGPRS RLC Data Blocks sent by the MS
Measurement Object
Cells
AssociatedOriginalKPIs
Total Number of Uplink EGPRS RLC Data BlocksRetransmission Rate of Uplink EGPRS RLC Data Blocks Using MCS1Retransmission Rate of Uplink EGPRS RLC Data Blocks Using MCS2Retransmission Rate of Uplink EGPRS RLC Data Blocks Using MCS3Retransmission Rate of Uplink EGPRS RLC Data Blocks Using MCS4Retransmission Rate of Uplink EGPRS RLC Data Blocks Using MCS5Retransmission Rate of Uplink EGPRS RLC Data Blocks Using MCS6Retransmission Rate of Uplink EGPRS RLC Data Blocks Using MCS7Retransmission Rate of Uplink EGPRS RLC Data Blocks Using MCS8Retransmission Rate of Uplink EGPRS RLC Data Blocks Using MCS9
Type Calculated KPI
Unit KB
5 KPI ReferenceHUAWEI BSC6000 Base Station Subsystem
5.6.4 Downlink EGPRS RLC Data Retransmission RateThis describes the formula, type, unit, and associated original KPIs of the Downlink EGPRSRLC Data Retransmission Rate.
Table 5-44 Downlink EGPRS RLC Data Retransmission Rate (%)
Counter Downlink EGPRS RLC Data Retransmission Rate (%)
Description
1 – Number of Downlink EGPRS RLC Data Blocks received by the MS/Number of Downlink EGPRS RLC Data Blocks sent by the BSS
MeasurementObject
Cells
AssociatedOriginalKPIs
Total number of downlink EGPRS RLC data blocksRetransmission Rate of Downlink EGPRS RLC Data Blocks Using MCS1Retransmission Rate of Downlink EGPRS RLC Data Blocks Using MCS2Retransmission Rate of Downlink EGPRS RLC Data Blocks Using MCS3Retransmission Rate of Downlink EGPRS RLC Data Blocks Using MCS4Retransmission Rate of Downlink EGPRS RLC Data Blocks Using MCS5Retransmission Rate of Downlink EGPRS RLC Data Blocks Using MCS6Retransmission Rate of Downlink EGPRS RLC Data Blocks Using MCS7Retransmission Rate of Downlink EGPRS RLC Data Blocks Using MCS8Retransmission Rate of Downlink EGPRS RLC Data Blocks Using MCS9
Type Calculated KPI
Unit KB
5.7 PS Accessibility KPIsThis describes the PS Accessibility KPIs that indicate whether MSs can easily access cells. PoorPS Accessibility KPIs directly affect user satisfaction.
5.7.1 Uplink Assignment Success RateThis describes the formula, type, and unit of the Uplink Assignment Success Rate.
5.7.2 Downlink Assignment Success RateThis describes the formula, type, and unit of the Downlink Assignment Success Rate.
5.7.3 Mean Interval of Packet Access Requests on CCCHThis describes the formula, type, and unit of the Mean Interval of Packet Access Requests onCCCH.
5.7.4 Uplink TBF Congestion RateThis describes the formula, type, and unit of the Uplink TBF Congestion Rate.
5.7.5 Downlink TBF Congestion RateThis describes the formula, type, and unit of the Downlink TBF Congestion Rate.
HUAWEI BSC6000 Base Station SubsystemBSS Performance Management Guidelines 5 KPI Reference
Measurement period x 60/Packet Access Requests on the CCCH in themeasurement period
MeasurementObject
Cells
Type Calculated KPI
Unit Second
5.7.4 Uplink TBF Congestion RateThis describes the formula, type, and unit of the Uplink TBF Congestion Rate.
Table 5-48 Uplink TBF Congestion Rate (%)
Counter Uplink TBF Congestion Rate (%)
Description ((Number of Uplink TBF Establishment Failures due to No Channel +Number of Uplink TBF Abnormal Release due to No Channel)/Numberof Uplink TBF Establishment Attempts
Measurement Object
Cells
Type Calculated KPI
Unit %
5.7.5 Downlink TBF Congestion RateThis describes the formula, type, and unit of the Downlink TBF Congestion Rate.
Table 5-49 Downlink TBF congestion rate (%)
Counter Downlink TBF congestion rate (%)
Description ((Number of Downlink TBF Establishment Failures due to NoChannel + Number of Downlink TBF Abnormal Release due to NoChannel)/Number of Downlink TBF Establishment Attempts
Measurement Object
Cells
Type Calculated KPI
Unit %
HUAWEI BSC6000 Base Station SubsystemBSS Performance Management Guidelines 5 KPI Reference
5.7.6 Uplink EGPRS TBF Congestion RateThis describes the formula, type, and unit of the Uplink EGPRS TBF Congestion Rate.
Table 5-50 Uplink EGPRS TBF Congestion Rate (%)
Counter Uplink EGPRS TBF Congestion Rate (%)
Description
((Number of Uplink EGPRS TBF Establishment Failures due to NoChannel + Number of Uplink EGPRS TBF Abnormal Release due to NoChannel)/Number of Uplink EGPRS TBF Establishment Attempts
Measurement Object
Cells
Type Calculated KPI
Unit %
5.7.7 Downlink EGPRS TBF Congestion RateThis describes the formula, type, and unit of the Downlink EGPRS TBF Congestion Rate.
Table 5-51 Downlink EGPRS TBF Congestion Rate (%)
Counter Downlink EGPRS TBF Congestion Rate (%)
Description
((Number of Downlink EGPRS TBF Establishment Failures due to NoChannel + Number of Downlink EGPRS TBF Abnormal Release due to NoChannel)/Number of Downlink EGPRS TBF Establishment Attempts
MeasurementObject
Cells
Type Calculated KPI
Unit %
5.8 PS Resource Utilization KPIsThis describes the PS Resource Utilization KPIs that indicate the utilization of the networkresource and the busy states of services. Thus, these KPIs can be used to guide networkexpansion.
5.8.1 Uplink PDTCH/PACCH UtilizationThis describes the formula, type, and unit of the Uplink PDTCH/PACCH Utilization.
5.8.2 Downlink PDTCH/PACCH UtilizationThis describes the formula, type, and unit of the Downlink PDTCH/PACCH Utilization.
5.8.3 PDCH Usage
5 KPI ReferenceHUAWEI BSC6000 Base Station Subsystem
This describes the formula, type, and unit of the PDCH Usage.
5.8.4 Preempted PDCHs Carrying Packet Traffic Success RateThis describes the formula, type, and unit of the Preempted PDCHs Carrying Packet TrafficSuccess Rate.
5.8.5 PDCH Assignment Success RateThis describes the formula, type, and unit of the PDCH Assignment Success Rate.
5.8.6 Mean Downlink Throughput Every PDCHThis describes the formula, type, and unit of the Mean Downlink Throughput Every PDCH.
5.8.7 Mean Uplink Throughput Every PDCHThis describes the formula, type, and unit of the Mean Uplink Throughput Every PDCH.
5.8.1 Uplink PDTCH/PACCH UtilizationThis describes the formula, type, and unit of the Uplink PDTCH/PACCH Utilization.
Table 5-52 Uplink PDTCH/PACCH Utilization
Counter Uplink PDTCH/PACCH Utilization
Description
Number of Uplink Blocks Transmitted on the PDTCH/PACCH/Numberof uplink blocks dispatched by the PDCH
Measurement Object
Cells
Type Calculated KPI
Unit %
5.8.2 Downlink PDTCH/PACCH UtilizationThis describes the formula, type, and unit of the Downlink PDTCH/PACCH Utilization.
Table 5-53 Downlink PDTCH/PACCH Utilization
Counter Downlink PDTCH/PACCH Utilization
Description Number of Downlink Blocks Transmitted on the PDTCH/PACCH/Number of downlink blocks dispatched by the PDCH
Type Calculated KPI
Unit %
5.8.3 PDCH UsageThis describes the formula, type, and unit of the PDCH Usage.
HUAWEI BSC6000 Base Station SubsystemBSS Performance Management Guidelines 5 KPI Reference
Mean Number of Occupied PDCHs/Mean Number of Available PDCHs
Measurement Object
Cells
Type Calculated KPI
Unit %
5.8.4 Preempted PDCHs Carrying Packet Traffic Success RateThis describes the formula, type, and unit of the Preempted PDCHs Carrying Packet TrafficSuccess Rate.
Description Number of Preempted PDCHs Carrying Packet Traffic/Number ofDynamic PDCHs Reclaimed by the BSC
Measurement Object
Cells
Type Calculated KPI
Unit %
5.8.5 PDCH Assignment Success RateThis describes the formula, type, and unit of the PDCH Assignment Success Rate.
Table 5-56 PDCH Assignment Success Rate
Counter PDCH Assignment Success Rate
Description 1-(Number of GRPS TBF Establishment Failures due to MS No Response+ Number of EGRPS TBF Establishment Failures due to MS No Response)/(Number of GPRS TBF Establishment Attempts + Number of EGPRS TBFEstablishment Attempts)
Measurement Object
Cells
Type Calculated KPI
Unit %
5 KPI ReferenceHUAWEI BSC6000 Base Station Subsystem
5.8.6 Mean Downlink Throughput Every PDCHThis describes the formula, type, and unit of the Mean Downlink Throughput Every PDCH.
Table 5-57 Mean Downlink Throughput Every PDCH
Counter Mean Downlink Throughput Every PDCH (kbit/s)
Description (RLCPayloadDL + EGPRSRLCPayloadDL)/(measurement period x 60)/PDCHs occupied by the downlink EGPRS RLC
Measurement Object
None.
Type Calculated KPI
Unit kbit/s
5.8.7 Mean Uplink Throughput Every PDCHThis describes the formula, type, and unit of the Mean Uplink Throughput Every PDCH.
Table 5-58 Mean Uplink Throughput Each PDCH (kbit/s)
Counter Mean Uplink Throughput Each PDCH (kbit/s)
Description (RLCPayloadUL + EGPRSRLCPayloadUL)/(measurement period x 60)/PDCHs occupied by the uplink EGPRS RLC
Measurement Object
None
Type Calculated KPI
Unit kbit/s
5.9 PS Retainability KPIsThis describes the PS Retainability KPIs that mainly involve the uplink and downlink TBF calldrop rates. These KPIs indicate the capability of providing continuous services by the networkand are directly related to user satisfaction. Thus, an increase in call drop rate directly leads toa decrease in user satisfaction.
5.9.1 Uplink GPRS TBF Call Drop RateThis describes the formula, type, and unit of the Uplink GPRS TBF Call Drop Rate.
5.9.2 Downlink GPRS TBF Call Drop RateThis describes the formula, type, and unit of the Downlink GPRS TBF Call Drop Rate.
HUAWEI BSC6000 Base Station SubsystemBSS Performance Management Guidelines 5 KPI Reference
5.9.3 Uplink EGPRS TBF Call Drop RateThis describes the formula, type, and unit of the Uplink EGPRS TBF Call Drop Rate.
5.9.4 Downlink EGPRS TBF Call Drop RateThis describes the formula, type, and unit of the Downlink EGPRS TBF Call Drop Rate.
5.9.1 Uplink GPRS TBF Call Drop RateThis describes the formula, type, and unit of the Uplink GPRS TBF Call Drop Rate.
Table 5-59 Uplink GPRS TBF Call Drop Rate (%)
Counter Uplink GPRS TBF Call Drop Rate (%)
Description ((Number of Uplink GPRS TBF Abnormal Release due to N3101Overflow + Number of Uplink GPRS TBF Abnormal Release due toN3103 Overflow)/Number of Successful Uplink GPRS TBFEstablishment
MeasurementRange
Cell level
Type Calculated KPI
Unit %
5.9.2 Downlink GPRS TBF Call Drop RateThis describes the formula, type, and unit of the Downlink GPRS TBF Call Drop Rate.
Table 5-60 Downlink GPRS TBF Call Drop Rate (%)
Counter Downlink GPRS TBF Call Drop Rate (%)
Description Number of Downlink TBF Abnormal Release due to N3105Overflow/Number of Successful Downlink TBF Establishment
MeasurementObject
Cells
Type Calculated KPI
Unit %
5.9.3 Uplink EGPRS TBF Call Drop RateThis describes the formula, type, and unit of the Uplink EGPRS TBF Call Drop Rate.
Table 5-61 Uplink EGPRS TBF Call Drop Rate
Counter Uplink EGPRS TBF Call Drop Rate (%)
5 KPI ReferenceHUAWEI BSC6000 Base Station Subsystem
Description ((Number of Uplink EGPRS TBF Abnormal Release due to N3101Overflow + Number of Uplink EGPRS TBF Abnormal Release due toN3103 Overflow)/Number of Successful Uplink EGPRS TBFEstablishment
Measurement Object
Cells
Type Calculated KPI
Unit %
5.9.4 Downlink EGPRS TBF Call Drop RateThis describes the formula, type, and unit of the Downlink EGPRS TBF Call Drop Rate.
Table 5-62 Downlink EGPRS TBF Call Drop Rate (%)
Counter Downlink EGPRS TBF Call Drop Rate (%)
Description
Number of Downlink EGPRS TBF Abnormal Release due to N3105Overflow/Number of Successful Downlink EGPRS TBF Establishment
Measurement Object
Cells
Type Calculated KPI
Unit %
5.10 PS End-to-End Delay KPIsThis describes the PS End-to-End Delay KPIs that indicate the service response speed of thenetwork. Long delay affects user satisfaction.
5.10.1 PING DelayThis describes the meaning, type, and unit of the PING Delay.
5.10.2 Mean Delay of PDP ActivationThis describes the meaning, type, and unit of the Mean Delay of PDP Activation.
5.10.3 Mean Delay of AttachmentThis describes the meaning, type, and unit of the Mean Delay of Attachment.
5.10.4 Cell Reselection Time for 2G Packet ServicesThis describes the meaning, type, and unit of the Cell Reselection Time for 2G Packet Services.
5.10.5 Cell Reselection Time for 2G-3G Packet ServicesThis describes the meaning, type, and unit of the Cell Reselection Time for 2G-3G PacketServices.
HUAWEI BSC6000 Base Station SubsystemBSS Performance Management Guidelines 5 KPI Reference
5.10.3 Mean Delay of AttachmentThis describes the meaning, type, and unit of the Mean Delay of Attachment.
Table 5-65 Mean Delay of Attachment
Counter Mean Delay of Attachment
Description This KPI indicates the delay of attachment on the equipment of the corenetwork. Mean delay of attachment between the receipt of the ATTACHREQUEST message sent by the MS and the sending of the ATTACHACCEPT sent by the SGSN = Total delay of GPRS attachment/Numberof GPRS attachment
MeasurementObject
Cells
Type Calculated KPI
Unit Second
NominalReferenceValue
2.3s
5.10.4 Cell Reselection Time for 2G Packet ServicesThis describes the meaning, type, and unit of the Cell Reselection Time for 2G Packet Services.
Table 5-66 Cell Reselection Time for 2G Packet Services
Counter Cell Reselection Time for 2G Packet Services
Description Cell Reselection Time for 2G Packet Services
MeasurementObject
Cells
Type Calculated KPI
Unit Second
NominalReference Value
About 4s (without NACC)
5.10.5 Cell Reselection Time for 2G-3G Packet ServicesThis describes the meaning, type, and unit of the Cell Reselection Time for 2G-3G PacketServices.
HUAWEI BSC6000 Base Station SubsystemBSS Performance Management Guidelines 5 KPI Reference
Table 5-67 Cell Reselection Time for 2G-3G Packet Services
Counter Cell Reselection Time for 2G-3G Packet Services
Description Cell Reselection Time for 2G-3G Packet Services
MeasurementObject
Cells
Type Calculated KPI
Unit Second
NominalReferenceValue
10.39s
5.11 PS End-to-End Quality KPIsThis describes the PS end-to-end quality KPIs. They involve the performance factors ofterminals, the radio access network, and the core network. Now, the main performance problemcomes from the radio access network. Therefore, these KPIs indicate the end-to-end service datalink bearing capability of the GPRS network, which are directly related to user satisfaction.
5.11.1 GRPS Data Transmission RateThis describes the formula, type, and unit of the GRPS Data Transmission Rate.
5.11.2 EDGE Data Transmission RateThis describes the formula, type, and unit of the EDGE Data Transmission Rate.
5.11.1 GRPS Data Transmission RateThis describes the formula, type, and unit of the GRPS Data Transmission Rate.
Table 5-68 GRPS Data Transmission Rate
Counter GRPS Data Transmission Rate
Description Data transmission rate on each PDCH; rate on the application layer
MeasurementObject
Cells
Type Calculated KPI
Unit kbit/s
NominalReferenceValue
Small-size file (about 200 KB)Uplink and downlink transmission rate (18.5 kbit/s)Large-size file (more than 1 MB)Uplink and downlink transmission rate (19.1 kbit/s)
5 KPI ReferenceHUAWEI BSC6000 Base Station Subsystem
