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WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
Page0Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Revision Record
1.00BSC6810V200R011
C00
RNCOWJ40
Course Version ISSUEProduct VersionProductCourse Code
NewMi Jia2009-07-24Guo Yang
New/UpdateApproverTimeDeveloper/Modifier
Don’t Print This Page
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
www.huawei.com
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
WCDMA RAN Traffic KPI and Relative Counters
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
Page2Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Foreword
Traffic KPI is one of the most important KPI in the UMTS
Network. For Huawei KPI system, traffic KPI includes the
following items:
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
Page3Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Objectives
Upon completion of this course, you will be able to:
Describe the Huawei RNC Traffic KPI and Related Counters
Describe the Huawei Cell Traffic KPI and Related Counters
Describe the Huawei Cell Load KPI and Related Counters
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
Page4Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Contents
1. RNC Traffic KPI and Related Counters
2. Cell Traffic KPI and Related Counters
3. Cell Load KPI and Related Counters
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
Page5Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Contents
1. RNC Traffic KPI and Related Counters
1.1 RNC Traffic KPI for AMR 12.2kbps Services
1.2 RNC Traffic KPI for Video Phone 64kbps Services
1.3 RNC Traffic KPI for PS R99 DL Throughput
1.4 RNC Traffic KPI for HSDPA DL Throughput
1.5 RNC Traffic KPI for HSUPA UL Throughput
1.6 RNC Traffic KPI for PS MBMS DL Throughput
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
Page6Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
AMR 12.2kbps Traffic (Erlang)
According to Huawei definition, the AMR 12.2kbps Traffic is
obtained from the following counters:
Number of UE connections allocated in downlink 12.2kbps
AMR RATE
VS.AMR.RB.DL.12.2
There are other counter to measure the AMR service traffic with different rate:
VS.AMR.RB.UL.4.75 VS.AMR.RB.DL.4.75
VS.AMR.RB.UL.5.15 VS.AMR.RB.DL.5.15
VS.AMR.RB.UL.5.9 VS.AMR.RB.DL.5.9
VS.AMR.RB.UL.6.7 VS.AMR.RB.DL.6.7
VS.AMR.RB.UL.7.4 VS.AMR.RB.DL.7.4
VS.AMR.RB.UL.7.95 VS.AMR.RB.DL.7.95
VS.AMR.RB.UL.10.2 VS.AMR.RB.DL.10.2
VS.AMR.RB.UL.12.2 VS.AMR.RB.DL.12.2
For all the above counters:
The measurement items provide the mean number of UEs that use the AMR speech services at different bit rates in both uplink and downlink directions in the RNC.
The RNC periodically takes a sample from the number of AMR speech UEs at each of the eight UL and DL bit rates. At the end of the measurement period, the RNC divides the accumulated number by the number of samples to obtain the mean number of AMR speech UEs at each rate.
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
Page7Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Contents
1. RNC Traffic KPI for All Services and Related Counters
1.1 RNC Traffic KPI for AMR 12.2kbps Services
1.2 RNC Traffic KPI for Video Phone 64kbps Services
1.3 RNC Traffic KPI for PS R99 DL Throughput
1.4 RNC Traffic KPI for HSDPA DL Throughput
1.5 RNC Traffic KPI for HSUPA UL Throughput
1.6 RNC Traffic KPI for PS MBMS DL Throughput
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
Page8Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Video Phone 64kbps Traffic (Erlang)
According to Huawei definition, the Video Phone 64kbps Traffic
is obtained from the following counters:
Number of 64 kbit/s Conversational Service RBs in CS Domain
DL Directions
VS.RB.DLConvCS.64.RNC
VS.RB.DLConvCS.64.RNC
VS.RB.ULConvCS.64.RNC
The measurement items provide the mean number of 64 kbit/s conversational service RBs in the CS domain in the UL and DL directions.
The RNC periodically takes a sample from the number of 64 kbit/s conversational service RBs in the CS domain in the UL and DL directions. At the end of themeasurement period, the RNC divides the accumulated number of RBs at one bit rate by the number of samples to obtain the mean number of such RBs.
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
Page9Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Contents
1. RNC Traffic KPI for All Services and Related Counters
1.1 RNC Traffic KPI for AMR 12.2kbps Services
1.2 RNC Traffic KPI for Video Phone 64kbps Services
1.3 RNC Traffic KPI for PS R99 DL Throughput
1.4 RNC Traffic KPI for HSDPA DL Throughput
1.5 RNC Traffic KPI for HSUPA UL Throughput
1.6 RNC Traffic KPI for PS MBMS DL Throughput
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
Page10Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Traffic KPI for PS R99 DL Throughput (kbps)
According to Huawei definition, the PS R99 DL Throughput is
obtained from the following counters:
DL Traffic of R99 PS Domain in RNC
VS.R99PSLoad.DLThruput.RNC
VS.R99PSLoad.DLThruput.RNC
This measurement item provides the downlink traffic of all the R99 services in the PS domain within the RNC.
The RNC periodically takes a sample from the downlink traffic values of all the R99 services in the PS domain. At the end of the measurement period, the RNC divides the accumulated traffic values by the number of samples to obtain the mean downlink traffic of all the R99 services in the PS domain.The downlink traffic of all the R99 services in the PS domain refers to the traffic measured at the RLC layer. The data does not include the RLC head data.
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
Page11Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Contents
1. RNC Traffic KPI for All Services and Related Counters
1.1 RNC Traffic KPI for AMR 12.2kbps Services
1.2 RNC Traffic KPI for Video Phone 64kbps Services
1.3 RNC Traffic KPI for PS R99 DL Throughput
1.4 RNC Traffic KPI for HSDPA DL Throughput
1.5 RNC Traffic KPI for HSUPA UL Throughput
1.6 RNC Traffic KPI for PS MBMS DL Throughput
WCDMA RAN Traffic KPI and Relative Counters
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Page12Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Traffic KPI for HSDPA DL Throughput (kbps)
According to Huawei definition, the HSDPA DL Throughput is
obtained from the following counters:
DL Traffic of HSDPA PS Domain in RNC
VS.HSDPAPSLoad.DLThruput.RNC
VS.HSDPAPSLoad.DLThruput.RNC
This measurement item provides the downlink traffic of all the HSDPA services in the PS domain within the RNC.
The RNC periodically takes a sample from the downlink traffic values of all the HSDPA services in the PS domain. At the end of the measurement period, the RNC divides the accumulated traffic values by the number of samples to obtain the mean downlink traffic of all the HSDPA services in the PS domain.The downlink traffic of all the HSDPA services in the PS domain refers to the traffic measured at the RLC layer. The data does not include the RLC head data.
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
Page13Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Contents
1. RNC Traffic KPI for All Services and Related Counters
1.1 RNC Traffic KPI for AMR 12.2kbps Services
1.2 RNC Traffic KPI for Video Phone 64kbps Services
1.3 RNC Traffic KPI for PS R99 DL Throughput
1.4 RNC Traffic KPI for HSDPA DL Throughput
1.5 RNC Traffic KPI for HSUPA UL Throughput
1.6 RNC Traffic KPI for PS MBMS DL Throughput
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
Page14Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Traffic KPI for HSUPA UL Throughput (kbps)
According to Huawei definition, the HSUPA UL Throughput is
obtained from the following counters:
UL Traffic of HSUPA PS Domain in RNC
VS.HSUPAPSLoad.ULThruput.RNC
VS.HSUPAPSLoad.ULThruput.RNC
This measurement item provides the uplink traffic of all the HSUPA services in the PS domain within the RNC.
The RNC periodically takes a sample from the uplink traffic values of all the HSUPA services in the PS domain. At the end of the measurement period, the RNC divides the accumulated values by the number of samples to obtain the mean uplink traffic of all the HSUPA services in the PS domain.The uplink traffic of all the HSUPA services in the PS domain refers to the traffic obtained at the RLC layer. The data does not include the RLC head data.
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
Page15Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Contents
1. RNC Traffic KPI for All Services and Related Counters
1.1 RNC Traffic KPI for AMR 12.2kbps Services
1.2 RNC Traffic KPI for Video Phone 64kbps Services
1.3 RNC Traffic KPI for PS R99 DL Throughput
1.4 RNC Traffic KPI for HSDPA DL Throughput
1.5 RNC Traffic KPI for HSUPA UL Throughput
1.6 RNC Traffic KPI for PS MBMS DL Throughput
WCDMA RAN Traffic KPI and Relative Counters
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Page16Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Traffic KPI for PS MBMS DL Throughput (kbps)
According to Huawei definition, the HSUPA UL Throughput is
obtained from the following counters:
DL Traffic of MBMS PS Domain in RNC
VS.MBMSPSLoad.DLThruput.RNC
VS.MBMSPSLoad.DLThruput.RNC
This measurement item provides the downlink traffic of all the MBMS services in the PS domain within the RNC.
The RNC periodically takes a sample from the downlink traffic values of all the MBMS services in the PS domain. At the end of the measurement period, the RNC divides the accumulated traffic values by the number of samples to obtain the mean downlink traffic of all the MBMS services in the PS domain.The downlink traffic of all the MBMS services in the PS domain refers to the traffic measured at the RLC layer. The data does not include the RLC head data.
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
Page17Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Contents
1. RNC Traffic KPI and Related Counters
2. Cell Traffic KPI and Related Counters
3. Cell Load KPI and Related Counters
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
Page18Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Contents
2. Cell Traffic KPI and Related Counters
2.1 Cell Traffic KPI for Common Channels
2.2 Cell Traffic KPI for All Services
2.3 Cell Traffic KPI for HSDPA DL Throughput
2.4 Cell Traffic KPI for HSUPA UL Throughput
WCDMA RAN Traffic KPI and Relative Counters
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Page19Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
FACH Utility Ratio
According to Huawei definition, the FACH Utility Ratio is
calculated by the following formula:
Traffic Volume on IUB_FACH (Cell)
VS.MAC.CRNCIubBytesFACH.TX
CRNC_Iub FACH Bandwidth (Cell)
VS.CRNC.IUB.FACH.Bandwidth
dwidthB.FACH.BanVS.CRNC.IU*3600ACH.TxCIubBytesFVS.MAC.CRN Ratio Utility FACH =
The FACH Utility Ratio should be calculated based on one busy hour.
VS.MAC.CRNCIubBytesFACH.TX
This measurement item provides the number of DL MAC PDU bytes sent by the CRNC on the FACH FP over the Iub interface in a cell.
The measurement is triggered when the CRNC sends DL data on the FACH FP over the Iub interface.
VS.CRNC.IUB.FACH.Bandwidth
The measurement items provide the common channel bandwidth on the Iubinterface in a cell
The measurement is triggered when the CRNC sets up or deletes a common channel on the Iub interface.
WCDMA RAN Traffic KPI and Relative Counters
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Page20Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
RACH Utility Ratio
According to Huawei definition, the RACH Utility Ratio is
calculated by the following formula:
Traffic Volume on IUB_RACH (Cell)
VS.MAC.CRNCIubBytesRACH.Rx
CRNC_Iub RACH Bandwidth (Cell)
VS.CRNC.IUB.RACH.Bandwidth
dwidthB.RACH.BanVS.CRNC.IU*3600ACH.RxCIubBytesRVS.MAC.CRN Ratio Utility RACH =
The RACH Utility Ratio should be calculated based on one busy hour.
VS.MAC.CRNCIubBytesRACH.Rx
This measurement item provides the number of UL MAC PDU bytes sent by the CRNC on the RACH FP over the Iub interface in a cell.
The measurement is triggered when the CRNC sends UL data on the RACH FP over the Iub interface.
VS.CRNC.IUB.RACH.Bandwidth
The measurement items provide the common channel bandwidth on the Iubinterface in a cell
The measurement is triggered when the CRNC sets up or deletes a common channel on the Iub interface.
WCDMA RAN Traffic KPI and Relative Counters
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Page21Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
PCH Utility Ratio
According to Huawei definition, the PCH Utility Ratio is
calculated by the following formula:
Traffic Volume on IUB_PCH (Cell)
VS.MAC.CRNCIubBytesPCH.Tx
CRNC_Iub PCH Bandwidth (Cell)
VS.CRNC.IUB.PCH.Bandwidth
dwidthB.RACH.BanVS.CRNC.IU*3600CH.TxCIubBytesPVS.MAC.CRN Ratio Utility PCH =
The PCH Utility Ratio should be calculated based on one busy hour.
VS.MAC.CRNCIubBytesPCH.Tx
This measurement item provides the number of DL MAC PDU bytes received by the CRNC on the PCH FP over the Iub interface. These bytes include paging data transport blocks and paging indication (PI) data.
The measurement is triggered when the CRNC sends DL data on the PCH FP over the Iub interface.
VS.CRNC.IUB.PCH.Bandwidth
The measurement items provide the common channel bandwidth on the Iubinterface in a cell
The measurement is triggered when the CRNC sets up or deletes a common channel on the Iub interface.
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
Page22Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Contents
2. Cell Traffic KPI and Related Counters
2.1 Cell Traffic KPI for Common Channels
2.2 Cell Traffic KPI for All Services
2.3 Cell Traffic KPI for HSDPA DL Throughput
2.4 Cell Traffic KPI for HSUPA UL Throughput
WCDMA RAN Traffic KPI and Relative Counters
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Page23Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Cell CS Service Traffic Volume
Measurement value for different CS services on Iub interface
UL CS Conversational Traffic Volume on Iub Interface (Cell)
VS.MAC.SRNCIubBytesCSConv.Rx
UL CS Streaming Traffic Volume on Iub Interface (Cell)
VS.MAC.SRNCIubBytesCSStr.Rx
DL CS Conversational Traffic Volume on Iub Interface (Cell)
VS.MAC.SRNCIubBytesCSConv.Tx
DL CS Streaming Traffic Volume on Iub Interface (Cell)
VS.MAC.SRNCIubBytesCSStr.Tx
VS.MAC.SRNCIubBytesCSConv.Rx
This measurement item provides the number of UL MAC PDU bytes sent by the SRNC to the MAC-d on the CS conversational service bearer (DCH FP) over the Iubinterface in a cell.
The measurement is triggered when the SRNC sends UL data on the CS conversational service bearer DCH FP over the Iub interface in a cell.
VS.MAC.SRNCIubBytesCSStr.Rx
This measurement item provides the number of UL MAC PDU bytes sent by the SRNC to the MAC-d on the CS streaming service bearer (DCH FP) over the Iubinterface in a cell.
The measurement is triggered when the SRNC sends UL data on the CS streaming service bearer DCH FP over the Iub interface.
VS.MAC.SRNCIubBytesCSConv.Tx
This measurement item provides the number of DL MAC PDU bytes sent by the SRNC on the CS conversational service bearer DCH FP over the Iub interface in a cell.
The measurement is triggered when the SRNC sends DL data on the CS conversational service bearer DCH FP over the Iub interface.
VS.MAC.SRNCIubBytesCSStr.Tx
This measurement item provides the number of DL MAC PDU bytes sent by the SRNC on the CS streaming service bearer DCH FP over the Iub interface in a cell.
The measurement is triggered when the SRNC sends DL data on the CS streaming service bearer DCH FP over the Iub interface in a cell.
WCDMA RAN Traffic KPI and Relative Counters
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Page24Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Measurement value for different PS services on Iub interface
UL PS Streaming Traffic Volume on Iub Interface (Cell)
VS.MAC.SRNCIubBytesPSStr.Rx
UL PS Interactive Traffic Volume on Iub Interface (Cell)
VS.MAC.SRNCIubBytesPSInt.Rx
UL PS Background Traffic Volume on Iub Interface (Cell)
VS.MAC.SRNCIubBytesPSBkg.Rx
Cell PS Service Traffic Volume
VS.MAC.SRNCIubBytesPSStr.Rx
This measurement item provides the number of UL MAC PDU bytes sent by the SRNC to the MAC-d on the PS streaming service bearer (DCH FP) over the Iubinterface in a cell.
The measurement is triggered when the SRNC sends UL data on the PS streaming service bearer DCH FP over the Iub interface in a cell.
VS.MAC.SRNCIubBytesPSInt.Rx
This measurement item provides the number of UL MAC PDU bytes sent by the SRNC to the MAC-d on the PS interactive service bearer (DCH FP) over the Iubinterface in a cell.
The measurement is triggered when the SRNC sends UL data on the PS interactive service bearer DCH FP over the Iub interface in a cell.
VS.MAC.SRNCIubBytesPSBkg.Rx
This measurement item provides the number of UL MAC PDU bytes sent by the SRNC to the MAC-d on the PS background service bearer (DCH FP) over the Iubinterface in a cell.
The measurement is triggered when the SRNC sends UL data on the PS background service bearer DCH FP over the Iub interface in a cell.
WCDMA RAN Traffic KPI and Relative Counters
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Page25Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Cell PS Service Traffic Volume
Measurement value for different PS services on Iub interface
DL PS Streaming Traffic Volume on Iub Interface (Cell)
VS.MAC.SRNCIubBytesPSStr.Tx
DL PS Interactive Traffic Volume on Iub Interface (Cell)
VS.MAC.SRNCIubBytesPSInt.Tx
DL PS Background Traffic Volume on Iub Interface (Cell)
VS.MAC.SRNCIubBytesPSBkg.Tx
VS.MAC.SRNCIubBytesPSStr.Tx
This measurement item provides the number of DL MAC PDU bytes sent by the SRNC on the PS streaming service bearer DCH FP over the Iub interface in a cell.
The measurement is triggered when the SRNC sends DL data on the PS streaming service bearer DCH FP over the Iub interface in a cell.
VS.MAC.SRNCIubBytesPSInt.Tx
This measurement item provides the number of DL MAC PDU bytes sent by the
SRNC on the PS interactive service bearer DCH FP over the Iub interface in a cell.
The measurement is triggered when the SRNC sends DL data on the PS interactive
service bearer DCH FP over the Iub interface in a cell.
VS.MAC.SRNCIubBytesPSBkg.Tx
This measurement item provides the number of bytes of the DL MAC PDU sent by
the SRNC on the PS background service bearer DCH FP over the Iub interface in a
cell.
The measurement is triggered when the SRNC sends DL data on the PS
background service bearer DCH FP over the Iub interface in a cell.
WCDMA RAN Traffic KPI and Relative Counters
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Cell AMR Service Traffic
Mean Number of AMR Speech UEs at Different UL and DL Bit Rates
(Cell)
VS.AMR.Ctrl.UL4.75 VS.AMR.Ctrl.DL4.75
VS.AMR.Ctrl.UL5.15 VS.AMR.Ctrl.DL5.15
VS.AMR.Ctrl.UL5.9 VS.AMR.Ctrl.DL5.9
VS.AMR.Ctrl.UL6.7 VS.AMR.Ctrl.DL6.7
VS.AMR.Ctrl.UL7.4 VS.AMR.Ctrl.DL7.4
VS.AMR.Ctrl.UL7.95 VS.AMR.Ctrl.DL7.95
VS.AMR.Ctrl.UL10.2 VS.AMR.Ctrl.DL10.2
VS.AMR.Ctrl.UL12.2 VS.AMR.Ctrl.DL12.2
For all the above conters:
The measurement items provide the mean number of UEs that use the AMR speech service at different UL and DL bit rates in the cell.
The RNC periodically takes a sample from the number of UEs that use the AMR speech service at the eight different UL and DL rates in the cell. At the end of the measurement period, the RNC divides the accumulated number by the number of samples to obtain the mean number of UEs that use the AMR speech service at each bit rate.
WCDMA RAN Traffic KPI and Relative Counters
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Page27Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Cell PS Service Traffic
Mean Number of R99 PS Service RBs at Different UL and DL Bit Rates (Cell)
VS.RB.ULStrPS.DifferentServiceRate1
VS.RB.DLStrPS.DifferentServiceRate1
VS.RB.ULInterPS.DifferentServiceRate2
VS.RB.DLInterPS.DifferentServiceRate2
VS.RB.ULBkgPS.DifferentServiceRate2
VS.RB.DLBkgPS.DifferentServiceRate2
Where “DifferentServiceRate1” means the rates are: 8, 16, 32, 64, 128, 144, 256,
256384 (kbps)
Where “DifferentServiceRate2” means the rates are: 8, 16, 32, 64, 128, 144, 256,
384 (kbps)
The measurement items provide the mean number of PS streaming/interactive/background service R99 RBs at the different bit rates in a cell, that is, the mean number of R99 RBsobtained at the sampling points in the cell in the measurement period.
The RNC periodically takes a sample from the number of PS streaming service RBs at different bit rates. At the end of the measurement period, the RNC divides the accumulated number of PS streaming service RBs at different bit rates by the number of samples to obtain the mean number of the PS streaming service RBs. In this case, the RNC measures the item in the specified cell.
DifferentServiceRates1 are 8, 16, 32, 64, 128, 144, 256,256384, DifferentServiceRates2
are 8, 16, 32, 64, 128, 144, 256,384. For example:
VS.RB.ULStrPS.8 : Mean number of PS streaming service RBs at the UL rate of 8 kbit/s
VS.RB.DLStrPS.8 : Mean number of PS streaming service RBs at the DL rate of 8 kbit/s
VS.RB.ULStrPS.256384 : Mean number of PS streaming service RBs at the DL rate of (256,384] kbit/s
VS.RB.ULInterPS.384 : Mean number of PS interactive service RBs at the UL rate of 384 kbit/s
VS.RB.DLInterPS.384 : Mean number of PS interactive service RBs at the DL rate of 384 kbit/s
VS.RB.ULBkgPS.384 : Mean number of PS background service RBs at the UL rate of 384 kbit/s
VS.RB.DLBkgPS.384 : Mean number of PS background service RBs at the DL rate of 384 kbit/s
Etc.
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Page28Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Contents
2. Cell Traffic KPI and Related Counters
2.1 Cell Traffic KPI for Common Channels
2.2 Cell Traffic KPI for All Services
2.3 Cell Traffic KPI for HSDPA DL Throughput
2.4 Cell Traffic KPI for HSUPA UL Throughput
WCDMA RAN Traffic KPI and Relative Counters
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HSDPA RLC Traffic Volume (MBytes)
According to Huawei definition, the HSDPA RLC Traffic Volume
is calculated by the following formula:
Number of Transmitted Downlink Bytes in MAC-d Flow (Cell)
VS.HSDPA.MeanChThroughput.TotalBytes
1024*1024lBytesghput.TotaeanChThrouVS.HSDPA.MlMBytesghput.TotaeanChThrouVS.HSDPA.M =
VS.HSDPA.MeanChThroughput.TotalBytes
This measurement item provides the number of bytes in the transmitted downlink data in the MAC-d flow in a cell.
When data is transmitted in an HSDPA cell, the RNC measures the total number of bytes in the transmitted downlink data at the RLC layer for the MAC-d flow in the cell. The RLC header overheand and the retransfer data are excluded.
WCDMA RAN Traffic KPI and Relative Counters
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HSDPA RLC Throughput (Mbps)
According to Huawei definition, the HSDPA RLC Traffic Volume
is calculated by the following formula:
Where SP means Sampling Period of the counter, the unit is
minute
60*SP*1024*10248*lBytesghput.TotaeanChThrouVS.HSDPA.MlMBpsghput.TotaeanChThrouVS.HSDPA.M =
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HSDPA Mean UE
According to Huawei definition, the HSDPA Mean UE is
calculated by the following counter:
Mean Number of HSDPA UEs in a Cell
VS.HSDPA.UE.Mean.Cell
VS.HSDPA.UE.Mean.Cell
This measurement item provides the mean number of HSDPA UEs in a serving cell. The value of this unit is lower than or equal to that of the VS.CellDCHUEsmeasurement.
The RNC periodically takes a sample from the number of HSDPA UEs in the cell. At the end of the measurement period, the RNC divides the accumulated number of UEs by the number of samples to obtain the mean number of HSDPA UEs in the measurement period.
WCDMA RAN Traffic KPI and Relative Counters
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Page32Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Contents
2. Cell Traffic KPI and Related Counters
2.1 Cell Traffic KPI for Common Channels
2.2 Cell Traffic KPI for All Services
2.3 Cell Traffic KPI for HSDPA DL Throughput
2.4 Cell Traffic KPI for HSUPA UL Throughput
WCDMA RAN Traffic KPI and Relative Counters
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Page33Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
HSUPA RLC Traffic Volume (MBytes)
According to Huawei definition, the HSUPA RLC Traffic Volume
is calculated by the following formula:
Number of Bytes in Received Uplink Data at the RLC Layer of
Mac-d flow (Cell)
VS.HSUPA.MeanChThroughput.TotalBytes
1024*1024lBytesghput.TotaeanChThrouVS.HSUPA.MlMBytesghput.TotaeanChThrouVS.HSUPA.M =
VS.HSUPA.MeanChThroughput.TotalBytes
This measurement item provides the total number of bytes in the received uplink data at the RLC layer for all the MAC-d flows in a cell.
When data is received in an HSUPA active cell, the RNC measures the total number of bytes in the received uplink data at the RLC layer for the MAC-d flow in the cell. The RLC header overhead and the retransfer data are excluded.
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HSUPA RLC Throughput (Kbps)
According to Huawei definition, the HSUPA RLC Traffic Volume
is calculated by the following formula:
Where SP means Sampling Period of the counter, the unit is
minute
60*SP*10248*lBytesghput.TotaeanChThrouVS.HSUPA.M.Throughputbps.MeanChVS.HSUPA.K =
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HSUPA Mean UE
According to Huawei definition, the HSUPA Mean UE is
calculated by the following counter:
Mean Number of HSUPA in a cell
VS.HSUPA.UE.Mean.Cell
VS.HSUPA.UE.Mean.Cell
This measurement item provides the mean number of HSUPA UEs in a cell, which is measured in E-DCH active set. The measurement does not contain the HSUPA UEsunder the DRNC.
The RNC periodically takes a sample from the number of HSUPA UEs in the cell. At the end of the measurement period, the RNC divides the accumulated number of UEs by the number of samples to obtain the mean number of HSUPA UEs in the measurement period.
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Contents
1. RNC Traffic KPI and Related Counters
2. Cell Traffic KPI and Related Counters
3. Cell Load KPI and Related Counters
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Contents
3. Cell Load KPI and Related Counters
3.1 Cell Load KPI for Power
3.2 Cell Load KPI for Channel Element
3.3 Cell Load KPI for DL OVSF Code
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Cell UL Power Load (UL Interference)
According to Huawei definition, the Cell UL Power Load is calculated by the
following counter:
Mean RTWP of a cell
VS.MeanRTWP : mean value of all RTWPs reported in a certain period
Maximum RTWP of a cell
VS.MaxRTWP : maximum value of all RTWPs reported in a certain period
Minimum RTWP of a cell
VS.MinRTWP : minimum value of all RTWPs reported in a certain period
Where PN is the thermal noise which is around -106dBm
10P-RTWP N
10
11 oadUL_Power_L −=
RTWP (Received Total Wideband Power) analysis is used to evaluate the uplink interference and loading status. If actual loading of the network is empty, then the RTWP is the thermal noise plus the noise figure of the NodeB. With the access of more users in the network, RTWP increases accordingly.
The basic principles are:
RTWP at busy hour(BH) in one day should not exceed 1dB over the target loading of the network.
If HSUPA service is not activated, then 50% target loading is suggested, otherwise 75% uplink target loading should be used.
Since RTWP would be also influenced by the external interference, the RTWP result is just for reference, cannot be used for the reason of expansion directly.
The measurement is triggered at point A as shown in figure, when the RNC receives from the NodeB a COMMON MEASUREMENT REPORT message about the RTWP of a cell and obtains the RTWP of the cell. In this case, the RNC measures the items in this cell.
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Cell Total DL Power Load
According to Huawei definition, the Cell Total DL Power Load is calculated by
the following formula:
Mean TCP of a cell
VS.MeanTCP : mean value of all TCP s reported in a certain period
Maximum TCP of a cell
VS.MaxTCP : maximum value of all TCPs reported in a certain period
Minimum TCP of a cell
VS.MinTCP : minimum value of all TCPs reported in a certain period
l_TCP_Total_CelConfiguredTCP tioUtility_RaTotal_TCP_ =
TCP is used to assess the downlink power consumption, which represents the downlink loading status. Evaluation of TCP power is helpful to avoid the congestion due to the insufficient power in downlink.
The basic principles for the TCP utilization are:
1. The mean R99 TCP Utility Ratio should not exceed 70%
2. No service failure is caused by the insufficient TCP power.
If 1) is not met, then more carrier or more sites are suggested, if 2) is not met, then more research are needed together with the actual traffic model.
The measurement is triggered at point A as shown in the figure, when the RNC obtains the TCP of a cell after receiving from the NodeB a COMMON MEASUREMENT REPORT message containing the TCP values of the cell. In this case, the RNC measures the items in this cell.
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Cell Non-HSPA DL Power Load
According to Huawei definition, the Cell Non-HSPA DL Power Load is
calculated by the following formula:
Mean non-HSPA TCP of a cell
VS.MeanTCP.NonHS : mean value of all non-HSPA TCPs reported in a certain period
Maximum non-HSPA TCP of a cell,
VS.MaxTCP.NonHS : maximum value of all non-HSPA TCPs reported in a certain
period
Minimum non-HSPA TCP of a cell
VS.MinTCP.NonHS : minimum value of all non-HSPA TCPs reported in a certain
period
l_TCP_Total_CelConfiguredTCP.NonHS _RatioCP_UtilityNon_HSPA_T =
The basic principles for the TCP utilization are:
1. The mean R99 TCP Utility Ratio should not exceed 70%
2. No service failure is caused by the insufficient TCP power.
If 1) is not met, then more carrier or more sites are suggested, if 2) is not met, then more research are needed together with the actual traffic model.
The measurement is triggered at point A as shown in the figure, when the RNC obtains the non-HSPA TCP of a cell after it receives from the NodeB a COMMON MEASUREMENT REPORT message containing the non-HSPA TCP values of the cell. In this case, the RNC measures the items in this cell.
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Cell HSDPA DL Power Load
According to Huawei definition, the Cell HSDPA DL Power Load
is calculated by the following counters:
Mean HSDPA-required power of an HSDPA cell
VS.HSDPA.MeanRequiredPwr : mean value of all HSDPA-required power
reported in a certain period
Maximum HSDPA-required power of an HSDPA cell
VS.HSDPA.MaxRequiredPwr : maximum value of all HSDAP-required
power reported in a certain period
Minimum HSDPA-required power of an HSDPA cell
VS.HSDPA.MinRequiredPwr : minimum value of all HSDPA-required
power reported in a certain period
The measurement is triggered at point A as shown in the figure, when the RNC obtains the HSDPA-required power of an HSDPA cell after it receives from the NodeB a COMMON MEASUREMENT REPORT message containing the values of the cell. In this case, the RNC measures the items in this cell.
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Contents
3. Cell Load KPI and Related Counters
3.1 Cell Load KPI for Power
3.2 Cell Load KPI for Channel Element
3.3 Cell Load KPI for DL OVSF Code
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Cell Channel Element Load
According to Huawei definition, the Cell Channel Element Load
is calculated by the following counter:
Mean CE Usages (Cell) :
UL_Mean_Used_CE_Number = VS.LC.ULCreditUsed.CELL / 2
DL_Mean_Used_CE_Number = VS.LC.DLCreditUsed.CELL
Note: CE resource are shared by all the cells in one NodeB
ber_UL_CE_NumConfigureder_in_BHed_CE_NumbUL_Mean_Us (NodeB) ity_RatioUL_CE_Util =
ber_DL_CE_NumConfigureder_in_BHed_CE_NumbDL_Mean_Us (NodeB) ity_RatioDL_CE_Util =
CE is the baseband resources for services in NodeB. CE utilization ratio represents the base band resources consumption status of the NodeB. If the CE utilization ratio exceeds one specified threshold of the total CE, that means CE resources are going to be the limitation factor of the network. CE expansion is needed in this case.
The CE utilization ratio should not exceed 70% due to HUAWEI’s experiences.
CE is called NodeB credit on the RNC side and called Channel Element on the NodeB side. It is used to measure the channel demodulation capability of NodeBs.
For each data rate and service, the number of UL credits is equal to the number of UL CEsmultiplied by 2. This is because the RESOURCE STATUS INDICATION message over the Iubinterface supports only integers. For example, a UL 32 kbit/s PS service consumes 1.5 CEs. Then, the number of corresponding UL credits consumed is 3, an integer, which can be carried in the RESOURCE STATUS INDICATION message.
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Related Counter
Mean UL credit usage (cell)
VS.LC.ULCreditUsed.CELL
Mean DL credit usage (cell)
VS.LC.DLCreditUsed.CELL
There are several counters which can show the Credit utilization:
VS.LC.ULCreditUsed.CELLMean : UL credit usage (cell)
VS.LC.ULCreditUsed.CELL.MaxMaximum : UL credit usage (cell)
VS.LC.ULCreditUsed.CELL.MinMinimum : UL credit usage (cell)
VS.LC.DLCreditUsed.CELLMean : DL credit usage (cell)
VS.LC.DLCreditUsed.CELL.MaxMaximum : DL credit usage (cell)
VS.LC.DLCreditUsed.CELL.MinMinimum : DL credit usage (cell)
The measurement items provide the mean, maximum, and minimum credit usages in a cell.
The RNC periodically takes samples from the UL credit usage and DL credit usage in the cell. At the end of the measurement period, the RNC calculates the maximum and minimum usages of CE resources, and divides the accumulated usages by the number of samples to obtain the mean usage of both UL and DL CE resources in the measurement period.
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Contents
3. Cell Load KPI and Related Counters
3.1 Cell Load KPI for Power
3.2 Cell Load KPI for Channel Element
3.3 Cell Load KPI for DL OVSF Code
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Cell DL OVSF Code Load
According to Huawei definition, the Cell DL OVSF Code Load is
calculated by the following formula:
Mean Number of Occupied Codes (Cell)
VS.RAB.SFOccupy
Note:
The code number is normalized to SF = 256
The occupied codes are the codes occupied by the common channel, R99 user,
and HS-DSCH
deailable_CoMax_R99_Avn_BHsed_Code_iR99_Mean_U iotility_RatR99_Code_U =
Codes here are the OVSF codes for both R99 and HSPA services. If the codes utilization ratio exceeds one specified threshold of the total available OVSF codes, that means codes resources are going to be the limitation factor of the network.
The basic principles for the codes utilization are:
1. The codes utilization for R99 services should not exceed 70%.
2. No congestion due to codes in busy hour of the cell.
If 1)is not met, the codes allocation between R99 services and HSDPA services can be adjusted firstly according to the service distribution. If it is still not OK, then more carriers and sites are suggested If 2) is not met for a period of time, the adjustment suggestion is the same to 1).
VS.RAB.SFOccupy
The measurement items provide the mean number and the maximum number of occupied codes in a cell. The occupied codes are the codes occupied by the common channel, R99 user, and HS-DSCH. The code number is normalized to SF = 256, that is, converted to the code number when SF = 256. The way of the normalization to SF = 256 is to multiply the number when SF = k by 256/k.
Max_R99_Available_Code= 256 - Common channels(8 SF=256) - HSPDSCH (5 SF=16)*16 –HsScchCodeNum ( 4 SF=128) * 2 – EAGCHCodeNum( 0 SF=256)–ERGCHEHICHCodeNum(0 SF=128) * 2
R99_Mean_Used_Code_in_BH = VS.RAB.SFOccupy - Common channels(8 SF=256) -HSPDSCH (5 SF=16)*16 – HsScchCodeNum ( 4 SF=128) * 2 – EAGCHCodeNum( 0 SF=256) – ERGCHEHICHCodeNum(0 SF=128) * 2
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Summary
In this course, we learn the Huawei Traffic KPI and Counter
System, including:
RNC Traffic KPI and Related Counters
Cell Traffic KPI and Related Counters
Cell Load KPI and Related Counters
WCDMA RAN Traffic KPI and Relative Counters
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