iub_capacity management [compatibility mode]

7/28/2019 Iub_Capacity Management [Compatibility Mode]

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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

Confidential

1 Nokia Siemens Networks 28.2.2008


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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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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


M530C1

___&

RNCovercellsAll

RNCinVCCsUPIubAll

Confidential


_ _ _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


100

10001000

8b44B


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


1000[s]period100

7.407___384_____384___

]384[__1068_

tmeasuremen

kbpsDRINDLFORDURASRNCINDLBACKGPSDUR


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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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


100

__64____A

1000

16.4kbps


100

_IN_DRNCMR_12_2_DLDURA_FOR_A

IN_SRNCR_12_2_DL_DUR_FOR_AM

10001000

8b44B


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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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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