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Iub Throughput
The Iub throughput capability check is divided into two separate calculations:
1. Combined Actual Traffic Load Factor (Erl for AMR and mbps for PS & CS
2. DMCU Reservation Load Factor for PS Data and Total Actual PS DataThroughput
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Iub Throughput Step 1.1
First the actual traffic load needs to be calculated using following formula :
1(Mbps)dataCS(Mbps)dataPS(Erl)AMR
Where the AMR (Erl) is the actual AMR Erlang value measured over the whole
psrou gpuumaxpsroug puumaxrax
OHSHO[s]periodtmeasuremen100
_IN_DRNCMR_12_2_DLDURA_FOR_AIN_SRNCR_12_2_DL_DUR_FOR_AM
Usage(E)AMR_981_
RNCovercellsAll
aRNC
Where SHO OH is can be calculated using formula below (RNC level)
ET RTS IN ACT STHREE CELL+FOR RTIN ACT SETTWO CELLS+FOR RTN ACT SETONE CELL I
RTOHHORNC_980a_S
The Max AMR (Erl) is e.g. for RAN196 RAS05.1 CD2 6800Erl (from previous
1
3
ET_RTS_IN_ACT_STHREE_CELL+
2
_FOR_RTIN_ACT_SETTWO_CELLS_+FOR_RTN_ACT_SET_ONE_CELL_I
__ _ ___ __ __ ___ _ __ _
RNCinCellsAll
RNCinCellsAll
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s e mu p e y n ac or
ypca y .
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Iub Throughput Step 1.2
1Mb sthrouh utIubmax
(Mbps)dataCS
Mb sthrou h utIubmax
(Mbps)dataPS
ErlAMRMax
(Erl)AMR
Where the PS data (Mbps) is the actual PS data throughput over the RNC . .
throughput HAS to be measured using M530 counters excluding the ATM celloverhead (The Iub throughput is the traffic in the downlink direction defined in
the FP level) It should be noted that the formula below includes also CS data
Remove ATM OHs VAF= voice activity factor : typically 0.65
VAFDataCSPS
1000
16.4kbps
[s]periodtmeasuremen
100
_IN_DRNCMR_12_2_DLDURA_FOR_AIN_SRNCR_12_2_DL_DUR_FOR_AM
10001000
8b44B
[s]periodtmeasuremen
M530C1
___&
RNCovercellsAll
RNCinVCCsUPIubAll
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_ _ _This formula is similar to
RNC_983a R99 data thput -but Includes HSDPA
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RNC_983a R99 data throughput
thputDataRaRNC
_IN_DRNCMR_12_2_DLDURA_FOR_A
IN_SRNCR_12_2_DL_DUR_FOR_AM
__99_983_
RNCovercellsAll
R99 Data throughput
aRNCVAF 982_1000
16.4kbps
[s]periodtmeasuremen
100
10001000
8b44B
[s]periodtmeasuremen
RNCinVCCsUPIubAll
05.1[s]period1000
336___
[Mbps]ThrouhgputSDPA_982_
tmeasuremen
TOTPDUDMAC
HaRNC erRNCAllCellsOv
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_ _ _ = _ _
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Iub Throughput - Step 1.2 - without M530
HSDPA throughput can be calculated using formula below
336___ TOTPDUDMAC
NOTE!! In RAS06, the Mac-d PDU size can be also 656, HSDPA formula below can
05.1
[s]period1000
[Mbps]ThrouhgputSDPA_982_
tmeasuremen
HaRNC erRNCAllCellsOv
be used instead RNC_982a
RNC 608b= SS_MACD_BITRECEIVED_HM5000C126_1000
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Iub Throughput- Step 1.2 - without M530
If there are no M530 measurements available then the alternative way is touse duration counters and activity factor for PS part
dataCSPS
___256___
7.136
___128__
___128___
5.69___64__
___64___
__
SRNCINDLBACKGPSDUR
kpbs
DRNCINDLFORDURA
SRNCINDLBACKGPSDUR
kbpsDRNCINDLFORDURA
SRNCINDLBACKGPSDUR
erRNCAllCellsOv
verRNAcllCellsO
05.1[s]period1000
336___
[s]periodtmeasuremen1000100
1.66__64___A
1000[s]period100
7.407___384__
___384___
.___256__
erRNCAllCellsOv
tmeasuremen
TOTPDUDMACkbpsSRNCINCONVDURCSLLO
AFtmeasuremen
kbpsDRNCINDLFORDURA
SRNCINDLBACKGPSDUR
psDRNCINDLFORDURA
erRNCAllCellsOverRNCAllCellsOv
erRNCAllCellsOv
R99 PS load with AFCS Load HSDPA Load
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Iub Throughput- Step 1.2 - without M530
If there are no M530 measurements available then the alternative way is to useduration counters and activity factor for PS part
1000[s]period100
.___________
]64[__1065_
tmeasuremen
ps
DLMbpsLoadPSaRNC erRNCAllCellsOv
7.136___128_____128___
kbpsDRNCINDLFORDURASRNCINDLBACKGPSDURerRNCAllCellsOv
1000[s]period100___
tmeasuremen
1000[s]period100
3.273___256_____256___
]256[__1067_
tmeasuremen
kbpsDRNCINDLFORDURASRNCINDLBACKGPSDUR
DLMbpsLoadPSaRNC erRNCAllCellsOv
1000[s]period100
7.407___384_____384___
]384[__1068_
tmeasuremen
kbpsDRINDLFORDURASRNCINDLBACKGPSDUR
DLMbpsLoadPSaRNC erRNCAllCellsOv
05.1[s]period1000
336___[Mbps]ThrouhgputSDPA_982_
tmeasuremen
TOTPDUDMACHaRNC erRNCAllCellsOv
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1000[s]period100
1.66*__64____
__1064_
tmeasuremen
kbpsSRNCINCONVCSDURALLO
DataCSaRNC erRNCAllCellsOv
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Iub Throughput Step 1.3
UL data (R99+ HSDPA) can be compared with DL data (R99 + HSDPA) byequation presented below
UL PS data R99 (+HSUPA without SHO in RAS06) should be max 30% from DL Iubthroughput (FP level) -> UL throughput > 30% of DL then use RNC dimensioning tool
(RDT) to find new traffic mix
This can be calculated as below
][____986_ MbpsDLinDataPSaRNC
RNC_986a PS data in DL
1000
1.66
[s]periodtmeasuremen
100
__64____A
1000
16.4kbps
[s]periodtmeasuremen
100
_IN_DRNCMR_12_2_DLDURA_FOR_A
IN_SRNCR_12_2_DL_DUR_FOR_AM
10001000
8b44B
[s]periodtmeasuremen
M530C1 RNCovercellsAllRNCovercellsAllRNCinVCCsUPIubAll kbps
SRNCINCONVCSDURLLO
VAF
RNC 985a PS data in UL
1.66100
__64____A
16.4kbps100
_IN_DRNCMR_12_2_ULDURA_FOR_A
IN_SRNCR_12_2_UL_DUR_FOR_AM
8b44BM530C0
][____985_
RNCovercellsAllRNCovercellsAll
RNCinVCCsUPIubAll kbps
SRNCINCONVCSDURLLO
VAF
MbpsULinDataPSaRNC
_
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Iub Throughput Step 1.4
Additional rule for CS data (Mbps):
E.g. for RNC196 the CS data (Mbps) 25% * 196mbps (49Mbps)
CS data throughput but rather estimation based onreservation, assuming 100% activity factor)
[s]periodtmeasuremen1000100
1.66__64__A
DLorUL:[Mbps]_DataS_1064_
kbpsSRNCINCONVCSDURLLO
CaRNC
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