Iub_Capacity Management [Compatibility Mode]

Iub ThroughputThe Iub throughput capability check is divided into two separate calculations: 1. Combined Actual Traffic Load Factor (Erl for AMR and mbps for PS & CS data) data) 2. DMCU Reservation Load Factor for PS Data and Total Actual PS Data Throughput Combined Actual Traffic Load steps are explained in the following slides Combined Actual Traffic Load steps are explained in the following slides Confidential 1 ©Nokia Siemens Networks 28.2.2008 Iub Throughput – Step 1.1 First the actual traffic load needs to be calculated using following formula : 1 s + + (Mb ) th h t I b (Mbps) data CS (Mb ) th h t I b (Mbps) data PS (E l) AMR M (Erl) AMR • Where the AMR (Erl) is the actual AMR Erlang value measured over the whole RNC and excluding SHO OH, the calculation can be done as below (Mbps) throuhgput Iub max (Mbps) throughput Iub max (Erl) AMR Max RNC and excluding SHO OH, the calculation can be done as below OH SHO [s] period t measuremen 100 _IN_DRNC MR_12_2_DL DURA_FOR_A IN_SRNC R_12_2_DL_ DUR_FOR_AM Usage(E) AMR _ 981 _ RNC over cells All · + = ¿ a RNC – Where SHO OH is can be calculated using formula below (RNC level) ET RT S IN ACT S THREE CELL + FOR RT IN ACT SET TWO CELLS + FOR RT N ACT SET ONE CELL I RT OH HO RNC_980a_S ¿ • The Max AMR (Erl) is e.g. for RAN196 RAS05.1 CD2 6800Erl (from previous lid ) lti li d b fill i f t (t i ll 0 8) 1 3 ET_RT S_IN_ACT_S THREE_CELL + 2 _FOR_RT IN_ACT_SET TWO_CELLS_ + FOR_RT N_ACT_SET_ ONE_CELL_I _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ RNC in Cells All RNC in Cells All + = ¿ ¿ Confidential 2 ©Nokia Siemens Networks 28.2.2008 slide) multiplied by fill in factor (typically 0.8) Iub Throughput – Step 1.2 First the actual traffic load needs to be calculated using following formula : First the actual traffic load needs to be calculated using following formula : 1 s + + (Mbps) throuhgput Iub max (Mbps) data CS (Mbps) throughput Iub max (Mbps) data PS (Erl) AMR Max (Erl) AMR • Where the PS data (Mbps) is the actual PS data throughput over the RNC The throughput is the actual throughput i e not allocated capacity and this ( p ) gp ( p ) g p ( ) – The throughput is the actual throughput i.e. not allocated capacity and this throughput HAS to be measured using M530 counters excluding the ATM cell overhead (The Iub throughput is the traffic in the downlink direction defined in the FP level) The actual throughput can be calculated as below(on FP level) – The actual throughput can be calculated as below (on FP level) – It should be noted that the formula below includes also CS data Remove ATM OHs VAF=voice activity factor : typically 0.65 VAF Data CS PS · · + ÷ · · · = ¿ ¿ 1000 16.4kbps [s] period t measuremen 100 _IN_DRNC MR_12_2_DL DURA_FOR_A IN_SRNC R_12_2_DL_ DUR_FOR_AM 1000 1000 8b 44B [s] period t measuremen M530C1 _ _ _& RNC over cells All RNC in VCCs UP Iub All M530C1EG TOT CELL VC Confidential 3 ©Nokia Siemens Networks 28.2.2008 M530C1 EG_TOT_CELL_VC This formula is similar to RNC_983a R99 data thput - but Includes HSDPA RNC_983a R99 data throughput thput Data R a RNC _IN_DRNC MR_12_2_DL DURA_FOR_A IN_SRNC R_12_2_DL_ DUR_FOR_AM M530C1 _ _ 99 _ 983 _ RNC over cells All + ¿ ¿ R99 Data throughput a RNC VAF 982 _ 1000 16.4kbps [s] period t measuremen 100 _ _ _ _ _ _ _ 1000 1000 8b 44B [s] period t measuremen M530C1 RNC over cells All RNC in VCCs UP Iub All ÷ · · ÷ · · · = ¿ 05 . 1 [s] period 1000 336 _ _ _ [Mbps] Throuhgput SDPA _ 982 _ · · · = ¿ t measuremen TOT PDU D MAC H a RNC erRNC AllCellsOv PS & CS data thput (R99 +HSDPA) =RNC 983a +RNC 982a Confidential 4 ©Nokia Siemens Networks 28.2.2008 PS_&_CS_data thput (R99 + HSDPA) =RNC_983a + RNC_982a Iub Throughput - Step 1.2 - without M530 HSDPA throughput can be calculated using formula below 336 _ _ _ · ¿ TOT PDU D MAC RNC AllC ll O NOTE!! In RAS06, the Mac-d PDU size can be also 656, HSDPA formula below can 05 . 1 [s] period 1000 [Mbps] Throuhgput SDPA _ 982 _ · · = t measuremen H a RNC erRNC AllCellsOv be used instead RNC_982a RNC 608b = | | Mbit S S_MACD_BIT RECEIVED_H M5000C126 ¿ RNC_608b | | Mbit 1000 ¿ Confidential 5 ©Nokia Siemens Networks 28.2.2008 Iub Throughput- Step 1.2 - without M530 •If there are no M530 measurements available then the alternative way is to use duration counters and activity factor for PS part •Activity factor assumptions of 20 %(upper value) = data CS PS •Activity factor assumptions of 20 % (upper value) 3 273 _ _ _ 256 _ _ _ 7 . 136 _ _ _ 128 _ _ _ _ _ 128 _ _ _ 5 . 69 _ _ _ 64 _ _ _ _ _ 64 _ _ _ _ _ + | | | | + · | | . | \ | + + · | | . | \ | + ¿ ¿ ¿ kbps SRNC IN DL BACKG PS DUR kpbs DRNC IN DL FOR DURA SRNC IN DL BACKG PS DUR kbps DRNC IN DL FOR DURA SRNC IN DL BACKG PS DUR data CS S erRNC AllCellsOv verRN AcllCellsO 05 . 1 [s] period 1000 336 _ _ _ [s] period t measuremen 1000 100 1 . 66 _ _ 64 _ _ _ A 1000 [s] period 100 7 . 407 _ _ _ 384 _ _ _ _ _ 384 _ _ _ 3 . 273 _ _ _ 256 _ _ erRNC AllCellsOv · · · + · · · + · · · · | | . | \ | + + · | | . \ + ¿ ¿ ¿ ¿ t measuremen TOT PDU D MAC kbps SRNC IN CONV DURCS LLO AF t measuremen kbps DRNC IN DL FOR DURA SRNC IN DL BACKG PS DUR kbps DRNC IN DL FOR DURA erRNC AllCellsOv erRNC AllCellsOv erRNC AllCellsOv R99 PS load with AF CS Load HSDPA Load Confidential 6 ©Nokia Siemens Networks 28.2.2008 Iub Throughput- Step 1.2 - without M530 If there are no M530 measurements available then the alternative way is to use duration counters and activity factor for PS part ( ) 5 69 64 64 + ¿ kb DRNC IN DL FOR DURA SRNC IN DL BACKG PS DUR ( ) 1000 [s] period 100 5 . 69 _ _ _ 64 _ _ _ _ _ 64 _ _ _ ] 64 [ _ _ 1065 _ · · · + = ¿ t measuremen kbps DRNC IN DL FOR DURA SRNC IN DL BACKG PS DUR DL Mbps Load PS a RNC erRNC AllCellsOv ( ) 7 . 136 _ _ _ 128 _ _ _ _ _ 128 _ _ _ ] 128 [ 1066 · + ¿ = kbps DRNC IN DL FOR DURA SRNC IN DL BACKG PS DUR DL Mbps Load PS a RNC erRNC AllCellsOv 1000 [s] period 100 ] 128 [ _ _ 1066 _ · · = t measuremen DL Mbps Load PS a RNC ( ) 1000 [s] period 100 3 . 273 _ _ _ 256 _ _ _ _ _ 256 _ _ _ ] 256 [ _ _ 1067 _ · · · + = ¿ t measuremen kbps DRNC IN DL FOR DURA SRNC IN DL BACKG PS DUR DL Mbps Load PS a RNC erRNC AllCellsOv ( ) 1000 [s] period 100 7 . 407 _ _ _ 384 _ _ _ _ _ 384 _ _ _ ] 384 [ _ _ 1068 _ · · · + = ¿ t measuremen kbps DR IN DL FOR DURA SRNC IN DL BACKG PS DUR DL Mbps Load PS a RNC erRNC AllCellsOv ¿ ¿ 05 . 1 [s] period 1000 336 _ _ _ [Mbps] Throuhgput SDPA _ 982 _ · · · = ¿ t measuremen TOT PDU D MAC H a RNC erRNC AllCellsOv Confidential 7 ©Nokia Siemens Networks 28.2.2008 1000 [s] period 100 1 . 66 * _ _ 64 _ _ _ _ _ _ 1064 _ · · = ¿ t measuremen kbps SRNC IN CONV CS DUR ALLO Data CS a RNC erRNC AllCellsOv Iub Throughput – Step 1.3 UL data (R99+ HSDPA) can be compared with DL data (R99 + HSDPA) by equation presented below •UL PS data R99 (+HSUPA without SHO in RAS06) should be max 30% from DL Iub ( ) throughput (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 _ Mbps DL in Data PS a RNC = RNC_986a PS data in DL 1000 1 . 66 [s] period t measuremen 100 _ _ 64 _ _ _ _ A 1000 16.4kbps [s] period t measuremen 100 _IN_DRNC MR_12_2_DL DURA_FOR_A IN_SRNC R_12_2_DL_ DUR_FOR_AM 1000 1000 8b 44B [s] period t measuremen M530C1 RNC over cells All RNC over cells All RNC in VCCs UP Iub All kbps SRNC IN CONV CS DUR LLO VAF · ÷ · · + ÷ · · · ¿ ¿ ¿ RNC 985a PS data in UL 1000 1 . 66 [s] period t measuremen 100 _ _ 64 _ _ _ _ A 1000 16.4kbps [s] period t measuremen 100 _IN_DRNC MR_12_2_UL DURA_FOR_A IN_SRNC R_12_2_UL_ DUR_FOR_AM 1000 1000 8b 44B [s] period t measuremen M530C0 ] [ _ _ _ _ 985 _ RNC over cells All RNC over cells All RNC in VCCs UP Iub All kbps SRNC IN CONV CS DUR LLO VAF Mbps UL in Data PS a RNC · ÷ · · + ÷ · · · = ¿ ¿ ¿ _ Confidential 8 ©Nokia Siemens Networks 28.2.2008 1000 [s] period t measuremen 1000 [s] period t measuremen 1000 1000 [s] period t measuremen · Iub Throughput – Step 1.4 •Additional rule for CS data (Mbps): CS data (Mbps) s 25%max Iub Throughput CS data (Mbps) s 25% max Iub Throughput – E.g. for RNC196 the CS data (Mbps) s 25% * 196mbps (49Mbps) – The CS Data can be estimated as below(note that this is not the real – The CS Data can be estimated as below (note that this is not the real CS data throughput but rather estimation based on reservation, assuming 100% activity factor) [s] period t measuremen 1000 100 1 . 66 _ _ 64 _ _ A DL or UL : [Mbps] _Data S _ 1064 _ · · · + + = ¿ kbps SRNC IN CONV CS DUR LLO C a RNC Confidential 9 ©Nokia Siemens Networks 28.2.2008