This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
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
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
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
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
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
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
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
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
Confidential Information of Huawei. No Spreading Without Permission
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
Confidential Information of Huawei. No Spreading Without Permission
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
Confidential Information of Huawei. No Spreading Without Permission
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
Confidential Information of Huawei. No Spreading Without Permission
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.
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
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
Confidential Information of Huawei. No Spreading Without Permission
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
Confidential Information of Huawei. No Spreading Without Permission
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.
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
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.
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
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.
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
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.
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
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.
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
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.
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
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.
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
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.
WCDMA RAN Traffic KPI and Relative Counters
Confidential Information of Huawei. No Spreading Without Permission
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.