2. Licensing aspects (1/3)
General information
RU30 Licensing aspects
•
•
•
•
In RU30 for Flexi System Module Rel.2 CE licenses are valid for R99 traffic
HSDPA and HSUPA schedulers (System Module rel.2) do not consume CE licenses
HSDPA/HSUPA will have own capacity licenses that are called respectively ‘HSDPA BTS processing sets 'and
‘HSUPA BTS processing set’
HSUPA and HSDPA schedulers located at System Module rel.1 (FSMB) still requires CE licenses
HSUPA
Processing
sets
Rel99 CE
HSDPA
Processing
sets
HSDPA users / throughput – HSDPA BTS Processing Sets
HSUPA users / throughput – HSUPA BTS Processing Sets
R99 (DCH, A-DCH) traffic – Rel99 CE licenses
SM rel.2
2
3. Licensing aspects (2/3)
HSDPA BTS processing set
HSDPA BTS processing set
HSDPA Processing Set
Max number of HSDPA users per BTS
Max HSDPA throughput per BTS
HSDPA BTS processing set 1
32
7,2 Mbps
HSDPA BTS processing set 2
72
21 Mbps
HSDPA BTS processing set 3
72
84 Mbps
Operator can activate combination of different HSDPA processing sets
e.g. 2 x HSDPA BTS processing set 2 + 1 x HSDPA BTS processing set 3 = 2* 72 UEs / 2* 21Mbps + 1*72 UEs / 1*84Mbps = 216
UEs / 126Mbps
HSDPA BTS
Processing set 2
HSDPA BTS
Processing set 2
HSDPA BTS
Processing set 3
2xPS2+ PS3
216 HSDPA users
and 126Mbps
Note that HSDPA
Processing Set 1 is not
taken into
consideration when
mixed with Processing
Set2 and/or Set 3
HSDPA BTS
Processing set 1
HSDPA BTS
Processing set 1
HSDPA BTS
Processing set 3
PS3
72 HSDPA users
and 84Mbps
3
4. Licensing aspects (3/3)
HSPA BTS processing set (RU30EP1EP2) – summary
HSUPA and HSDPA BTS processing sets
•
•
•
•
HSDPA BTS processing set 1: 32 users and 7.2Mbps
HSDPA BTS processing set 2: 72 users and 21Mbps
HSDPA BTS processing set 3: 72 users and 84Mbps
HSUPA BTS processing set 1: 24 users or 5.8Mbps
One HSUPA BTS processing set license corresponds to 1,5 subunit.
Above HSUPA/HSDPA throughputs are peak air interface throughputs of BTS.
4
5. BaseBand resources allocation
System Module rel.2 logical structure
•
RU20 System Module rel.2 consists of CE
CE
CE
CE
CE
CE
SM capacity
referred in CE
Exemplary figure
•
RU30 System Module rel.2 consists of subunits that provides different functions according to available
licenses
1 subunit
Rel99 CE
licenses
Exemplary figure
HSUPA
Rel99
thr., users
CE
license
s
HSUPA
thr., users
HSDPA thr., users,
HSDPA
HSDPA cells
thr., users, HSDPA
cells
SM capacity can be
referred in:
-Rel99 CE
-HSDPA thr, users
-HSUPA thr and
users
5
6. HW in RU30 – Flexi WCDMA BTS
System Module Rel.2 capacity - number of subunits
•
System Module Rel.2 traffic capacity depends on number of commissioned cells. Table below
presents number of available subunits for traffic use (or CCCH / interference cancellation
processing)
Number of
cells
FSMC
FSMD
FSME
1-3
5
12
19
4–6
4
11
18
7–9
2 + 1*
9 + 1*
16 + 1*
10 – 12
1+1*
8 + 1*
15 + 1*
* Additional subunit for CCCH resources needed if one System Module and more than 6 cells/10km cell range/2way Rx div.
•
Available resources (subunits) can be used for CCCH processing, HSDPA users, thr. and cells processing, HSUPA
users and thr. processing, R99 users processing and interference cancellation processing
•
Please note that each SM Rel.2 contains CCCH processing resources required for ‘Basic Configurations’ (e.g. 6
cells/10km or 3cells/20km) included in the System Module rel.2 capacity
Example:
1)
2)
3)
FSME + FSME / 1 LCG, 12 cells/10km:
Number of subunits = 16 + 16 32 subunits available
FSME (LCG1: 6cells/10km) + FSME (LCG2: 6cells/10km)
Number of subunits = 18 + 18 36 subunits available
FSMD + FSME / 1 LCG, 12 cells/10km:
Number of subunits = 9 + 16 25 subunits available
6
7. HW in RU30 – Flexi WCDMA BTS
System Module Rel.2 capacity – HSDPA activated
In order to achieve certain HSDPA throughput appropriate baseband resources need to be allocated for HSDPA purpose.
Maximum HSDPA throughput for
System Module Rel.2
HSDPA baseband capacity
(HSDPA throughput subunits)
0 Mbps
HSDPA schedulers not
activated
84 Mbps
2
168 Mbps
3
252 Mbps
4
336 Mbps
5
420 Mbps
6
504 Mbps
7
Up to two HSDPA schedulers can be activated at one System Module Rel.2. Note that HSDPA baseband capacity is
common for both schedulers.
HSDPA_subunits = HSDPA_throughput_subunits + Number_of_LCGs * ¼ of_Subunit
Where: Number_of_LCG = number of LCGs covering System Module rel2 BB capacity
7
8. HSDPA scheduler
SM Rel.2 HSDPA scheduler
Operator can activate HSDPA scheduler by HSDPA throughput step commissioning.
• The following HSDPA throughput step values are available: from 0 up to 35
• Each step refers to 7,2Mbps (e.g. 1- 7,2Mbps; 2- 14,4Mbps, etc)
• HSDPA throughput commissioning is optional and if not commissioned, BTS will allocate HSDPA throughput
based on the default rules (please see next slide)
HSDPA throughput steps
Maximum throughput for HSDPA
scheduler
0
HSDPA schedulers not activated
1, 2, 3, 4, 5, 6
42 Mbps
7, 8, 9, 10, 11, 12
84 Mbps
13, 14, 15, 16, 17, 18
126 Mbps
19, 20, 21, 22, 23, 24
168 Mbps
25, 26, 27, 28, 29, 30
210 Mbps
31,32, 33, 34, 35
252 Mbps
* Note that HSDPA licensed
throughput might limit HSDPA
commissioned throughput.
The max HSDPA scheduler BB throughput can be calculated with formula* :
HSDPA_scheduler_throughput =
Min {HSDPA_throughput_step * 7.2 Mbps ; Maximum throughput for HSDPA scheduler}
Where:
HSDPA_throughput_step = commissioned scheduler throughput Maximum throughput for HSDPA=maximum throughput referred in Mbps for
corresponding HSDPA throughput step from above
8
9. HSDPA scheduler
Summary
System Module Rel.2 HSDPA scheduler description
Max. number of Active Users per
HSDPA scheduler
Max number of cells assign to
HSDPA scheduler
Max scheduler throughput
240
(196 DC + MIMO users)
6
252 Mbps
System Module Rel.2 description
Max number of HSDPA Max number of HSDPA
Max number of
Max HSDPA peak
schedulers per System Active Users per System HSDPA cells per
throughput per
Module Rel.2
Module Rel.2
System Module Rel.2 System Module Rel.2 /
2
480 (392 DC + MIMO
users)
12 (6 cell per
scheduler)
504 Mbps (252 Mbps
per scheduler)
Tables above do not consider TUP max HSDPA throughput limitation
9
10. Tcell grouping
General information
•
•
Tcell grouping is used to group cells to the HSDPA scheduler
•
•
The same TCell values can be used by different cells if those are allocated to different frequency layers.
•
One scheduler can handle up to two Tcell groups. If there is only one Tcell group used, six cells can be
supported. If there are two Tcell groups and one scheduler, up to three cells per Tcell group can be
supported (still up to six cells are supported totally).
•
The principles of grouping (maximum four TCell groups per LCG are possible) are as follows:
Tcell groups 1 and 3 are handled by the first scheduler in System Module Rel.2 and Tcell groups 2 and 4 are
handled by the second scheduler System Module Rel.2.
With Dual Cell HSDPA feature both cells from one sector must have the same Tcell value. Note that with the
dual cell feature, two cells from the same sector need to be served by the same scheduler and belong to
the same LCG.
Group 1: Tcell values 0, 1 and 2
Group 3: Tcell values 6, 7 and 8
Scheduler 1
Group 2: Tcell values 3, 4 and 5
Group 4: Tcell value 9
Scheduler 2
10
11. HSUPA baseband resources allocation in
RU30 - HSUPA Processing Set
• HSUPA license is called HSUPA BTS Processing Set
• The HSUPA BTS Processing Set is a HSUPA BB resources reservation inside the Flexi System Module Rel.2, that
allows for a certain number of HSUPA users and HSUPA throughput.
• HSUPA baseband resources allocation is performed in steps – so called HSUPA resource steps. One step is equal
to ¼ of subunit.
Users/throughput
HSUPA licensed
Unlicensed BB
capacity
capacity
HSUPA licensed HSUPA licensed
HSUPA thr., users HSUPA thr., users
capacity
capacity
HSUPA BTS
Processing set
HSUPA BTS
Processing set
HSDPA thr.,
users, HSDPA
cells
HSUPA BTS
Processing set
• 1 HSUPA Processing Set corresponds to 1,5 subunit
• 1 HSUPA Processing Set allows to reach 5.8Mbps or 24 users
HSDPA
thr., users, HSDP
A cells
12. HSUPA dimensioning
HSUPA Processing Sets requirements
In order to reach simultaneously certain number of HSUPA users and certain combined
L1 throughput , the following formula should be used to calculate required number of
HSUPA BTS Processing Sets
Number of HSUPA BTS Processing Sets = max ( HSUPA subunits / 1,5 ; Minimum amount of HSUPA BTS Processing
Sets )
Minimum amount of HSUPA BTS Processing Sets =
max ( Roundup ( Number_of_HSUPA_users / 24) ; Roundup(HSUPA_throughput / 5,8) )
12
13. HSUPA resources allocation (2/2)
HSUPA requirements for simultaneous users and throughput
2ms TTI FDPCH
dimensioning table
10ms TTI FDPCH
dimensioning table
10ms TTI
FDPCH UEs
2ms TTI
FDPCH UEs
2ms TTI no-FDPCH UEs
10ms TTI noFDPCH UEs
10ms TTI no-FDPCH
dimensioning table
HSUPA scheduler baseband
resources for HSUPA data and
CS Voice over HSPA users
16QAM 2ms
TTI (FDPCH /
no-FDPCH
UEs)
2ms TTI noFDPCH UEs
1 Subunit for single 16QAM
transmitting UE
CS Voice over
HSPA
1 Subunit for 18 CS Voice
over HSPA users
13
18. HSUPA in RU30 EP2
2 HSUPA schedulers per one LCG
• In RU30EP2 with System Module Rel.2, one HSUPA scheduler can support up to 240 HSUPA users from 1 to 12
cells.
• Up to two HSUPA schedulers can be allocated per single LCG with two System Module rel.2 and frequency layers
mapping to HW (note that frequency mapping to HW is possible only in one LCG scenario (RU30EP1/EP2))
up to 480 HSUPA users supported per LCG (2 x System Module rel.2)
480 HSUPA users
per LCG
240 HSUPA users
per Extension
System Module
LCG1
f1
f2
240 HSUPA users
per Master
System Module
18
20. Example 1 (1/3)
2+2+2, FSME, RU30EP2
BTS configuration and traffic requirements:
• 2+2+2; HSPA at all cells 6 HSPA cells 1x HSDPA scheduler
• HSUPA:
o 46.4 Mbps per BTS
o One HSUPA 16 QAM active user / frequency layer ( 2x 11.6Mbps
per BTS)
1 SU per frequency layer
o HSUPA Interference Cancellation (PIC) at every cell* 1 SU
• 40 HSPA users per cell 240 HSUPA users 1x HSUPA scheduler
required 1x LCG
• 126 Mbps DL (21Mbps per cell: 64QAM ); DC-HSDPA
Baseband capacity requirement:
HSUPA16QAM: 2 users 2x1 SU
HSUPA: 23.2 Mbps
HSPA: 238 users
9 SU
PIC: 6 cells 1 SU
HSDPA: 126 Mbps (3.25SU)
----------------------------2 + 9 + 1 + 3.25 = 15.25 SU
Total resources required:
15.25 SU
LCG
f1
DC-HSDPA
f2
Fig. 1 Cells grouping to
LCG
LCG
FSM
Fig. 2 System Module with one
LCG
FSME capacity (6 cells):
18 SU
What is left from BB resources after HSPA allocation:
18 SU – 15.25 SU = 2.75 SU
2.75 SU x 48 R99CE = 132 R99CE available
20
21. Example 1 (2/3)
2+2+2, FSME, RU30EP2
Subunits_for_HSDPA = Max {Round up ((2 * MIMO cells + non-MIMO cells) / 6) + 1 ;
Subunits_for_HSDPA_throughput } + number of LCGs * 0.25
where:
Subunits_for_HSDPA_throughput: number of subunits from Table
Number_of_LCGs: number of LCGs covering System Module Rel.2 baseband capacity
HSDPA requirement: 126Mbps / 6 non_MIMO cells
Subunits_for_HSDPA = Max {Round up ((2 * 0 + 6) / 6) + 1 ; 3 } + 1 * 0.25 = 3.25 SU
21