wcdma bts ru20 base band dimensioning v1.0
TRANSCRIPT
Internal1 © Nokia Siemens Networks WCDMA BTS PLM
RU20- Baseband dimensioningWCDMA BTS Product Management
05.01.2010
Ver. 1.0
Internal 2 © Nokia Siemens Networks WCDMA BTS PLM
This slide set shall not be considered as a feature description nor HSPA performance document. All references to those details in this document are for your convenience only and shall be double-checked from respective customer documents before any quotations
Examples used in this material are just for clarification purposes. Please check from WCDMA BTS PLM what configurations are supported in practice in each release.
Internal 3 © Nokia Siemens Networks WCDMA BTS PLM
WCDMA/HSPA Flexi BTS Roadmap (7.12.2009 version)
HW itemsFlexi BTS Multimode System Module (1000 CE/1500 CE per BTS)
Flexi RRH 60W 2100
Flexi 3-sector RF Module 2100 (10MHz)
FeaturesSupport for Large BTS Configurations up to 12 Cells
IP based Iub for Flexi WCDMA BTS
Timing over Packet
Dual Iub for Flexi WCDMA BTS
HW itemsFlexi 3-Sector RF Module 800EU
Flexi 3-Sector RF Module 1900
Flexi 3-Sector RF Module 2600
Medium Area BTS
FeaturesHSDPA 84 Mbps (Dual-Cell+ MIMO)
MIMO 42 Mbps (64QAM)
HSUPA 23 Mbps (Dual-Cell)
HSUPA 11 Mbps (16QAM)
High Speed Cell_FACH (DL+UL)
Interference Cancellation
Frequency Domain Equalizer
120W Output Power
Gigabit Baseband for Flexi BTS
4-Way Rx Diversity
HW itemsFlexi 3-Sector RF Module 850*
Flexi 3-Sector RF Module 900*
Flexi 3-Sector RF Module 1500
Flexi 3-Sector RF Module 1800*
Flexi 3-Sector RF Module 1.7/2.1*
Flexi 3-Sector RF Module 2100*
Flexi 1-Sector RF Module 2100*
Flexi RRH 2TX 900*
Flexi RRH 2TX 2100*
Smart Diplexer
FeaturesHSDPA 42 Mbps (Dual Cell + 64QAM)*
HSDPA 21 Mbps (64QAM)
MIMO 28 Mbps
Continuous Packet Connectivity
Power Saving Mode for BTS
RF Sharing WCDMA – GSM*
(* On top feature
HW items1-Column Active Antenna System
Ultra High Capacity BTS
FeaturesHSDPA 168 Mbps (Multi-Cell)
HSUPA 46 Mbps (Multi-Cell)
Dual-Band HSDPA
RF Sharing WCDMA-LTE
System Sharing WCDMA-LTE
Transport Sharing WCDMA-LTE
Vertical Sectorization
Flexi BTS Redundancy
RU20 RU10 RU30 RU40
Available Ready for Contract Under Planning Study Items
New features. Baseband
dimensioning described in
this document
Internal 4 © Nokia Siemens Networks WCDMA BTS PLM
General dimensioning rule changes in RU20
• No changes in dimensioning rules of UltraSite with WSPC
• No changes in dimensioning rules of Flexi Rel1 (FSMB)
• No changes dimensioning rules of DCH traffic
• Baseband efficiency improvement with Fractional DPCH feature (RAN1201):– If RAN1201 feature is activated then 1 CE is not anymore required for signaling with HSPA users– Signaling Radio Bearers (SRB) are always mapped to HSPA– Requires 3gpp release-7 UE
• Up to 160 HSPA users per LCG– 1 * FSMD: 80 HSPA users if SRB on HSPA (72 UE if SRB on DCH)– 1 * FSME: 80 HSPA users if SRB on HSPA (80 UE if SRB on DCH)– 2 * FSMD: 160 HSPA users if SRB on HSPA (144 UE if SRB on DCH)– 2 * FSME: 160 HSPA users if SRB on HSPA (160 UE if SRB on DCH)
RU20
Internal 5 © Nokia Siemens Networks WCDMA BTS PLM
HSDPA schedulers in RU20 main release - Rel2 HW (FSMD/E) and Enhanced UltraSite baseband (EUBB)
Same four HSDPA schedulers are available as in RU10:
1. Minimum baseband - scheduler: 36 CE: Flexi Rel2/EUBB, (32 CE: Flexi Rel1/WSPC)
2. 16 users per cell -scheduler: 36 CE: Flexi Rel2/EUBB, (32 CE: Flexi Rel1/WSPC)
3. Shared HSDPA Scheduler for baseband efficiency: 72 CE: Flexi Rel2/EUBB, (80 CE: Flexi Rel1/ 64 CE: WSPC)
4. Full baseband -scheduler: 72 CE: Flexi Rel2/EUBB, (80 CE: Flexi Rel1/ 64 CE: WSPC)
RU20
See note page
See note page
Internal 6 © Nokia Siemens Networks WCDMA BTS PLM
Minimum baseband -scheduler in RU20 main release - Rel2 HW (FSMD/E) and Enhanced UltraSite baseband (EUBB)
Notes:
• No support for 64 QAM, MIMO, DC-HSDPA
• 36 CE instead of 32 CE if Flexi Rel2 HW or EUBB. No other changes compared to RU10
RU20
1. Minimum baseband allocation • Selected in BTS commissioning• Time Multiplexed -principle• QPSK/16 QAM (LK)• Max 5 codes per cell• 16 Users per scheduler • Up to 3.6 Mbps per BTS• 32 CE/36 CE allocated per scheduler• 1 scheduler supports up to 3 cells• Cells can be on different frequencies (e.g..,
2-omni, 3-omni, 2+1)
8 users
4 users4 users
Example 1:
Minimum baseband
Internal 7 © Nokia Siemens Networks WCDMA BTS PLM
16 Users per cell -scheduler in RU20 main release - Rel2 HW (FSMD/E) and Enhanced UltraSite baseband (EUBB)
Notes:
• No support for 64 QAM, MIMO, DC-HSDPA
• 36 CE instead of 32 CE if Flexi Rel2 HW or EUBB. No other changes compared to RU10
RU20
16 users
16 users16 users
Example 2:
16 users per cell
2. 16 Users per cell
• Selected in BTS commissioning
• QPSK/16QAM (LK)
• Up to 16 users and 3.6 Mbps per cell/scheduler
• Max 5 codes per cell/scheduler
• Each HSDPA scheduler requires 32 CE/36 CE
Internal 8 © Nokia Siemens Networks WCDMA BTS PLM
Shared HSDPA Scheduler for baseband efficiency in RU20 main release- Rel2 HW (FSMD/E) and Enhanced UltraSite baseband (EUBB)
RU20
• Support for 64QAM– Same scheduler supports 16QAM and 64QAM
• Max 72 users per scheduler supported (64 in RU10)
• 16QAM: Max 21 Mbps peak rate (14.4 Mbps in RU10) – Max 14.4 mbps per cell– Enables e.g. 1+1+1 configuration with 7.2 Mbps in each cell simultaneously!
• 64QAM: Max 21 Mbps peak rate – Max 21 mbps per cell
• Max 9 users per TTI (8 in RU10)– Max 4 users per cell per TTI (3 in RU10)
• No support for MIMO. Full baseband scheduler -required– MIMO with Shared scheduler for baseband efficiency in “RU20 on Top” –release
Internal 9 © Nokia Siemens Networks WCDMA BTS PLM
HSDPA Shared Scheduler Evolution
RAS06
(Rel1 SM)
RU10
(Rel2 SM)
Peak throughput (HSDPA 16 QAM) 10.8 Mbps 14 Mbps
Max scheduled users 3 8
Max simultaneous users 48 64
CE required per scheduler 80 72
RU20
(Rel2 SM)
21 Mbps
9
72
72
Max peak throughput (*) 10.8 Mbps 14 Mbps 42 Mbps
* RAS06: 16QAM,
RU10: 16QAM,
RU20: DC-HSDPA (RU20 on top)
RU20
Internal 10 © Nokia Siemens Networks WCDMA BTS PLM
Shared HSDPA Scheduler for baseband efficiency in RU20 main release- Rel2 HW (FSMD/E) and Enhanced UltraSite baseband (EUBB)
RU20
3. Shared HSDPA Scheduler for Baseband Efficiency• Activated by License key
• QPSK/16QAM/64QAM (LK)
• Up to 21 Mbps peak rate per scheduler
• Max 15 codes per cell, 45 codes per scheduler (LK)
• Max 72 Users per cell/scheduler (LK)
• 1 scheduler supports up to 3 cells
• Max 9 users per TTI, max 4 users per cell per TTI
• 72 CE allocated per scheduler
10 users
26 users36 users
Example 3:
Shared HSDPA Scheduler for BB Efficiency
Internal 11 © Nokia Siemens Networks WCDMA BTS PLM
Full baseband -scheduler in RU20 main release- Rel2 HW (FSMD/E) and Enhanced UltraSite baseband (EUBB)
• Support for 64 QAM– Same scheduler supports 16QAM and 64QAM– 64QAM: Max 21 Mbps peak rate
• Support for MIMO with 16QAM– One MIMO cell per scheduler
• Max 72 users per scheduler supported (64 in RU10)
• Max 4 users per TTI (3 in RU10)
RU20
Internal 12 © Nokia Siemens Networks WCDMA BTS PLM
Full baseband -scheduler in RU20 main release - Rel2 HW (FSMD/E) and Enhanced UltraSite baseband (EUBB)
RU20
72 users
72 users72 users
Example 4:
Full Baseband -scheduler
4. Full baseband• Selected in BTS commissioning
• “Cell dedicated” scheduler
• QPSK/16QAM/64QAM (LK)
• MIMO
• Up to 21 Mbps per cell/scheduler (LK)
• Max 72 Users per cell/scheduler (LK)
• Max 15 codes per cell (LK)
• Max 4 users per TTI
• 72 CE allocated per HSDPA scheduler (=per cell)
Internal 13 © Nokia Siemens Networks WCDMA BTS PLM
Example #1- 64QAM
• 2+2+2 configuration. Shared HSDPA scheduler for BB efficiency with 64QAM on both carriers– 72 CE per scheduler totally 144 CE
– Max 21 Mbps per scheduler Max 42 Mbps per BTS
– Max 72 users per scheduler Max 144 users per BTS
TX/RX TX/RX
RF mod
TX/RX
Sector1 Sector2
Sector3
RX RX RX
FSMD
Scheduler#1
Cell1: Tcell=0, Cell3: Tcell=2
Cell2: Tcell=1
Scheduler#2
Cell4: Tcell=3, Cell6: Tcell = 5
Cell5: Tcell=4
RU20
f1 f1f1
f2 f2 f2
Internal 14 © Nokia Siemens Networks WCDMA BTS PLM
Example #2- MIMO
• 1+1+1 configuration. MIMO 16QAM on one frequency layer (3 MIMO cells)– Full baseband scheduler
– 72 CE per scheduler
totally 216 CE
– Max 28 Mbps per scheduler
Max 84 Mbps per BTS
– Max 72 users per scheduler
Max 216 users per BTS
TX/RX TX/RX
RF mod
TX/RX
TX/RX TX/RX
RF Mod
TX/RX
Sector1 Sector2 Sector3
Scheduler#1
Cell1: Tcell=0
Scheduler#2
Cell2: Tcell=1
Scheduler#3
Cell3: Tcell=2
FSMD
RU20
f1
f1
Internal 15 © Nokia Siemens Networks WCDMA BTS PLM
Example #3- MIMO
• 2+2+2 configuration. MIMO 16QAM on both frequency layers, f1 & f2 (6 MIMO cells)– 72 CE per scheduler
totally 432 CE
– Max 28 Mbps per scheduler
Max 168 Mbps per BTS
– Max 72 users per scheduler
Max 432 users per BTS
TX/RX TX/RX
RF mod
TX/RX
TX/RX TX/RX
RF Mod
TX/RX
Sector1 Sector2 Sector3
Scheduler#1
Cell1: Tcell=0
Scheduler#2
Cell2: Tcell=1
Scheduler#3
Cell3: Tcell=2
RU20
Scheduler#4
Cell4: Tcell=3
Scheduler#5
Cell5: Tcell=4
Scheduler#6
Cell6: Tcell=5
FSME
f1 f2
f1 f2
Internal 16 © Nokia Siemens Networks WCDMA BTS PLM
Example #4- MIMO
• 3+3+3 configuration. MIMO 16QAM on one frequency layer, f2 (3 MIMO cells). No HSDPA on f1, f3. FRGF module used– 72 CE per scheduler
totally 216 CE
– Max 28 Mbps per scheduler
Max 84 Mbps per BTS
– Max 72 users per scheduler Max 216 users per BTS
– MIMO needs to be on f2 (FRGF PA with 10 MHz bandwidth)
TX/RX TX/RX
RF mod
TX/RX
TX/RX TX/RX
RF Mod
TX/RX
Sector1 Sector2 Sector3
FSMD
Scheduler#1
Cell1: Tcell=0
Scheduler#2
Cell2: Tcell=1
Scheduler#3
Cell3: Tcell=2
RU20
f1: normal cells
f2: MIMO cells
f3: normal cells
f3 f2
f1 f2
Internal 17 © Nokia Siemens Networks WCDMA BTS PLM
Mixed rel1/rel2 or EUBB/non EUBB cases in RU20 main release
• HSPA+ traffic is handled by Flexi Rel2 or EUBB• DCH/HSPA traffic can be handled by both Flexi Rel1/Rel2 or UltraSite EUBB/Non EUBB
New commissioning parameter:• Defines if the CCH + traffic of the frequency layer is mapped to master System Module /
extension System Module (Flexi) or EUBB / non EUBB HW (UltraSite)– Common channels– HSDPA, HSUPA– DCH traffic (In case of DCH traffic, the selected HW is preferred)
• Example: 2+2+2 configuration with FSMB + FSMD: – f1: rel99 & HSPA (HSDPA 16QAM + HSUPA 2Mbps) allocated to FSMB by commissioning parameter
Common channels allocated to FSMB, 26 CE needed for CCH HSPA schedulers allocated to FSMB. DCH traffic (R99, HSDPA associated uplink, HSPA SRB):
• FSMB is preferred, but FSMD is also used if needed (no more capacity available in FSMB)– f2 rel99 & HSPA+ (HSDPA 64QAM/HSUPA 5.8 Mbps) allocated to FSMD by commissioning parameter
Common channels allocated to FSMD, 0 CE needed for CCH HSPA+ schedulers allocated to FSMD DCH traffic (R99, HSDPA associated uplink, HSPA SRB):
• FSMD is preferred, but FSMB is also used if needed (no more capacity available in FSMD)
RU20
Internal 18 © Nokia Siemens Networks WCDMA BTS PLM
HSUPA improvements in RU20 main release
• Support for HSUPA 5.8 Mbps (2 ms TTI)– Requires Flexi Rel2 System module or EUBB (UltraSite)
• More Resource steps supported by HSUPA 2 Mbps (10 ms TTI)– Increased to 10 steps (8 in RU10) with Flexi Rel2/EUBB
• Baseband efficiency improvement with Fractional DPCH feature (RAN1201):– If RAN1201 feature is activated then 1 CE is not anymore required for
signaling with HSPA users
RU20
Internal 19 © Nokia Siemens Networks WCDMA BTS PLM
2 Mbps (10 ms TTI) and 5.8 Mbps (2 ms TTI) HSUPA resource steps in RU20- Rel2 HW (FSMD/E*) and Enhanced UltraSite baseband (EUBB)
• HSUPA resources are allocated in steps of Channel Elements (CEs)
• Size of each HSUPA resource step in Channel Elements is described below:
HSUPA Resource step Incremental CE value Cumulative CE value
1 18 CE 18 CE
2 18 CE 36 CE
3 18 CE 54 CE
4 18 CE 72 CE
5 18 CE 90 CE
6 18 CE 108 CE
7 18 CE 126 CE
8 18 CE 144 CE
9 18 CE 162 CE
10 18 CE 180 CE
Max 180 CE
RU20
Internal 20 © Nokia Siemens Networks WCDMA BTS PLM
5.8 Mbps (2 ms TTI) HSUPA resource steps in RU20- Rel2 HW (FSMD/E*) and Enhanced UltraSite baseband (EUBB)
RU20
Number of HSUPA UEs per LCG
1,0 Mbps
2,8 Mbps
4,2 Mbps
5,6 Mbps
7 Mbps
8,4 Mbps
9,8 Mbps
11,2 Mbps
12,6 Mbps
14 Mbps
15,4 Mbps
16,8 Mbps
18,2 Mbps
19,6 Mbps
21 Mbps
1- 3 1 1 2 2 3 3 4 4 5 5 6 6 n/a n/a n/a4- 6 1 2 2 2 3 3 4 4 5 6 7 7 8 9 107- 9 2 2 2 3 3 4 4 4 5 6 7 8 9 9 10
10-12 2 2 3 4 4 4 4 5 5 6 7 8 9 9 1013-15 2 3 3 4 5 5 5 5 5 6 7 8 9 10 n/a16-18 3 3 3 4 5 6 6 6 6 7 8 9 10 n/a n/a19-21 3 4 4 4 5 6 7 7 7 8 9 10 n/a n/a n/a22-24 3 4 4 4 5 6 7 8 8 9 10 n/a n/a n/a n/a25-27 4 4 5 5 5 6 7 8 9 10 n/a n/a n/a n/a n/a28-30 4 4 5 5 5 6 7 8 9 10 n/a n/a n/a n/a n/a31-33 5 5 6 6 6 6 7 8 9 10 n/a n/a n/a n/a n/a34-36 5 6 6 6 6 6 7 8 9 10 n/a n/a n/a n/a n/a37-39 5 6 6 7 7 7 7 8 9 10 n/a n/a n/a n/a n/a40-42 6 6 6 7 7 7 7 8 9 10 n/a n/a n/a n/a n/a43-45 6 7 7 8 8 8 8 8 9 10 n/a n/a n/a n/a n/a46-51 7 7 8 8 9 9 9 9 10 n/a n/a n/a n/a n/a n/a51-60 8 8 8 9 10 10 10 10 n/a n/a n/a n/a n/a n/a n/a61-72 9 9 9 10 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a73-80 10 10 10 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a
Combined minimum baseband L1 throughput of all users
Internal 21 © Nokia Siemens Networks WCDMA BTS PLM
5.8 Mbps (2 ms TTI) HSUPA resource steps as CEs- Rel2 HW (FSMD/E*) and Enhanced UltraSite baseband (EUBB)
RU20
Number of HSUPA UEs per LCG
1,0 Mbps
2,8 Mbps
4,2 Mbps
5,6 Mbps
7 Mbps
8,4 Mbps
9,8 Mbps
11,2 Mbps
12,6 Mbps
14 Mbps
15,4 Mbps
16,8 Mbps
18,2 Mbps
19,6 Mbps
21 Mbps
1- 3 18 18 36 36 54 54 72 72 90 90 108 108 n/a n/a n/a4- 6 18 36 36 36 54 54 72 72 90 108 126 126 144 162 1807- 9 36 36 36 54 54 72 72 72 90 108 126 144 162 162 180
10-12 36 36 54 72 72 72 72 90 90 108 126 144 162 162 18013-15 36 54 54 72 90 90 90 90 90 108 126 144 162 180 n/a16-18 54 54 54 72 90 108 108 108 108 126 144 162 180 n/a n/a19-21 54 72 72 72 90 108 126 126 126 144 162 180 n/a n/a n/a22-24 54 72 72 72 90 108 126 144 144 162 180 n/a n/a n/a n/a25-27 72 72 90 90 90 108 126 144 162 180 n/a n/a n/a n/a n/a28-30 72 72 90 90 90 108 126 144 162 180 n/a n/a n/a n/a n/a31-33 90 90 108 108 108 108 126 144 162 180 n/a n/a n/a n/a n/a34-36 90 108 108 108 108 108 126 144 162 180 n/a n/a n/a n/a n/a37-39 90 108 108 126 126 126 126 144 162 180 n/a n/a n/a n/a n/a40-42 108 108 108 126 126 126 126 144 162 180 n/a n/a n/a n/a n/a43-45 108 126 126 144 144 144 144 144 162 180 n/a n/a n/a n/a n/a46-51 126 126 144 144 162 162 162 162 180 n/a n/a n/a n/a n/a n/a51-60 144 144 144 162 180 180 180 180 n/a n/a n/a n/a n/a n/a n/a61-72 162 162 162 180 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a73-80 180 180 180 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a
Combined minimum baseband L1 throughput of all users
Internal 22 © Nokia Siemens Networks WCDMA BTS PLM
2 Mbps (10 ms TTI) HSUPA resource steps in RU20- Rel2 HW (FSMD/E*) and Enhanced UltraSite baseband (EUBB)
RU20
Number of HSUPA UEs per LCG
1,4 Mbps
2,8 Mbps
4,2 Mbps
5,6 Mbps
7 Mbps
8,4 Mbps
9,8 Mbps
11,2 Mbps
12,6 Mbps
14 Mbps
15,4 Mbps
16,8 Mbps
18,2 Mbps
19,6 Mbps
21 Mbps
1- 3 1 1 2 2 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a4- 6 1 2 2 2 3 3 4 4 n/a n/a n/a n/a n/a n/a n/a7- 9 2 2 2 3 3 3 4 4 5 6 6 7 n/a n/a n/a
10-12 2 2 3 4 4 4 4 5 6 6 7 8 8 9 913-15 2 3 3 4 5 5 5 5 6 6 7 8 8 9 916-18 3 3 3 4 5 6 6 6 6 7 8 8 9 10 1019-21 3 4 4 4 5 6 7 7 7 8 8 9 10 10 n/a22-24 4 4 4 4 5 6 7 8 8 9 9 10 10 n/a n/a25-27 4 4 5 5 5 6 7 8 9 9 10 10 n/a n/a n/a28-30 4 4 5 5 5 6 7 8 9 10 10 n/a n/a n/a n/a31-33 5 5 6 6 6 6 7 8 9 10 n/a n/a n/a n/a n/a34-36 5 6 6 6 6 6 7 8 9 10 n/a n/a n/a n/a n/a37-39 6 6 6 7 7 7 7 8 9 10 n/a n/a n/a n/a n/a40-42 6 6 6 7 7 7 7 8 9 10 n/a n/a n/a n/a n/a43-45 6 7 7 8 8 8 8 8 9 10 n/a n/a n/a n/a n/a46-51 7 7 8 8 9 9 9 9 10 10 n/a n/a n/a n/a n/a51-60 8 8 8 8 9 10 10 10 n/a n/a n/a n/a n/a n/a n/a61-72 9 9 9 9 10 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a73-80 10 10 10 10 10 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a
Combined minimum baseband L1 throughput of all users
Internal 23 © Nokia Siemens Networks WCDMA BTS PLM
2 Mbps (10 ms TTI) HSUPA resource steps as CEs- Rel2 HW (FSMD/E*) and Enhanced UltraSite baseband (EUBB)
RU20
Number of HSUPA UEs per LCG
1,4 Mbps
2,8 Mbps
4,2 Mbps
5,6 Mbps
7 Mbps
8,4 Mbps
9,8 Mbps
11,2 Mbps
12,6 Mbps
14 Mbps
15,4 Mbps
16,8 Mbps
18,2 Mbps
19,6 Mbps
21 Mbps
1- 3 18 18 36 36 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a4- 6 18 36 36 36 54 54 72 72 n/a n/a n/a n/a n/a n/a n/a7- 9 36 36 36 54 54 54 72 72 90 108 108 126 n/a n/a n/a
10-12 36 36 54 72 72 72 72 90 108 108 126 144 144 162 16213-15 36 54 54 72 90 90 90 90 108 108 126 144 144 162 16216-18 54 54 54 72 90 108 108 108 108 126 144 144 162 180 18019-21 54 72 72 72 90 108 126 126 126 144 144 162 180 180 n/a22-24 72 72 72 72 90 108 126 144 144 162 162 180 180 n/a n/a25-27 72 72 90 90 90 108 126 144 162 162 180 180 n/a n/a n/a28-30 72 72 90 90 90 108 126 144 162 180 180 n/a n/a n/a n/a31-33 90 90 108 108 108 108 126 144 162 180 n/a n/a n/a n/a n/a34-36 90 108 108 108 108 108 126 144 162 180 n/a n/a n/a n/a n/a37-39 108 108 108 126 126 126 126 144 162 180 n/a n/a n/a n/a n/a40-42 108 108 108 126 126 126 126 144 162 180 n/a n/a n/a n/a n/a43-45 108 126 126 144 144 144 144 144 162 180 n/a n/a n/a n/a n/a46-51 126 126 144 144 162 162 162 162 180 180 n/a n/a n/a n/a n/a51-60 144 144 144 144 162 180 180 180 n/a n/a n/a n/a n/a n/a n/a61-72 162 162 162 162 180 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a73-80 180 180 180 180 180 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a
Combined minimum baseband L1 throughput of all users
Internal24 © Nokia Siemens Networks WCDMA BTS PLM
RU20 “On Top” –release- Baseband dimensioning
Internal 25 © Nokia Siemens Networks WCDMA BTS PLM
HSDPA improvements in RU20 On Top -release - Rel2 HW (FSMD/E*) and Enhanced UltraSite baseband (EUBB)
RU20
On Top
Shared Scheduler for Baseband Efficiency –scheduler1. MIMO 16QAM supported
Max 2 MIMO cells per scheduler
2. DC-HSDPA (64QAM) supported 42 Mbps peak rate Max 2 cells with MIMO or without MIMO
Note: DC-HSDPA (64QAM): Full baseband–scheduler:• not valid since Dual Cell HSDPA requires always joint scheduling for two cells (3gpp
requirement)
Internal 26 © Nokia Siemens Networks WCDMA BTS PLM
HSDPA changes in RU20 On Top -release
16 users per cell –scheduler– Not supported anymore by Flexi Rel2 System Modules/EUBB
– Requires always Flexi Rel1 System Module in configuration (FSMB or FSMB+FSMB or FSMB+FSMD/E) or WSPC unit in UltraSite
RU20
On Top
See note page
See note page
Internal 27 © Nokia Siemens Networks WCDMA BTS PLM
DC-HSDPA and Tcell grouping
- DC-HSDPA requirement: both cells must have same Tcell value defined in RNC
- Same Tcell grouping principles for HSDPA shared scheduler as today:- One scheduler can have values only from one Tcell group
- Rules for grouping (max 4 groups):Group 1: Tcell values 0, 1 and 2
Group 2: Tcell values 3, 4 and 5
Group 3: Tcell values 6, 7 and 8
Group 4: Tcell value 9
RU20
On Top
Internal 28 © Nokia Siemens Networks WCDMA BTS PLM
Example #5- MIMO
TX/RX TX/RX TX/RX
TX/RX TX/RX TX/RX
Sector1 Sector2 Sector3
Scheduler#1
Cell1: Tcell=0, Cell2: Tcell=1
Scheduler#2
Cell3: Tcell=3
FSMD
• 1+1+1 configuration. MIMO 16QAM on one frequency layer (3 MIMO cells)– 72 CE per scheduler
totally 144 CE
– Max 28 Mbps per scheduler
Max 56 Mbps per BTS
– Max 72 users per scheduler Max 144 users per BTS
RU20
On Top
f1
f1 f2
f2 f3
f3
Internal 29 © Nokia Siemens Networks WCDMA BTS PLM
Example #6- MIMO
TX/RX TX/RX
RF mod
TX/RX
TX/RX TX/RX
RF mod
TX/RX
Sector1 Sector2 Sector3
FSMD
• 2+2+2 configuration. MIMO 16QAM on both frequency layers, f1 and f2 (6 MIMO cells). – 72 CE per scheduler
totally 216 CE
– Max 28 Mbps per scheduler
Max 84 Mbps per BTS
– Max 72 users per scheduler Max 216 users per BTS
RU20
On Top
Scheduler#1
Cell1: Tcell=0
Cell2: Tcell=1
Scheduler#2
Cell3: Tcell=3
Cell4: Tcell=4
Scheduler#3
Cell5: Tcell=6
Cell6: Tcell=7
f1 f2
f1 f2
Internal 30 © Nokia Siemens Networks WCDMA BTS PLM
Example #7- DC-HSDPA
• 2+2+2 configuration. DC-HSDPA with 64QAM– 72 CE per scheduler totally 216 CE
– Max 42 Mbps per scheduler Max 126 Mbps per BTS
– Max 72 users per scheduler Max 216 users per BTS
TX/RX TX/RX
RF mod
TX/RX
Sector1 Sector2
Sector3
RX RX RX
FSMD
Scheduler#1
Cell1: Tcell=0
Cell2: Tcell=0
Scheduler#2
Cell3: Tcell=3
Cell4: Tcell=3
Scheduler#3
Cell5: Tcell=6
Cell6: Tcell=6
RU20
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f1 f2