Download - Flexi 1Gb BB - Part 4 HSUPA Aspects 4
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Network Engineering Training Session onFlexi 1GB Baseband Step by StepPart 4: HSUPA allocation, dimensioning & licensing
CS Voice dimensioningMulti RAB dimensioning (HSPA + AMR call)
19.09.2012
Bartosz Wrbel
Network Engineering
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General Information
This slide set shall notbe considered as an official 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.
This document is not a RAN Dimensioning Guide. All capacity values
and performance figures in this document shall be verified from WCDMA
RAN documentation.
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Where to find more information about BasebandDimensioning ?
RU30 Baseband Dimensioning internal guideline
RAN_Dim Dimensioning tool
FAQ
https://sharenet-ims.inside.nokiasiemensnetworks.com/Open/424107386https://sharenet-ims.inside.nokiasiemensnetworks.com/Open/318048181https://workspaces.emea.nsn-net.net/sites/NetworkEngineering/Lists/Discussions/AllItems.aspxhttps://workspaces.emea.nsn-net.net/sites/NetworkEngineering/Lists/Discussions/AllItems.aspxhttps://sharenet-ims.inside.nokiasiemensnetworks.com/Open/318048181https://sharenet-ims.inside.nokiasiemensnetworks.com/Open/424107386 -
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Contents
General Introduction
RU30 Licensing aspects
RU30 Baseband dimensioning rules
Technical Details
Flexi System Module rel.2
Local Cell Grouping
HSDPA Dimensioning
HSDPA BTS Processing Set resources allocation
HSUPA Dimensioning
HSUPA BTS Processing Set resources allocation
R99 Dimensioning
Common Control Channels Dimensioning
Network Parameters
CS Voice Over HSPA Dimensioning
Multi RAB dimensioning
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Impact of RAN2123 on BTS dimensioning
New dimensioning
rulesNew baseband dimensioning
rules for System Module rel.2RAN21231 Gigabit Baseband
New licensing
aspectsNew licensing aspects
for System Module rel.2
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Impact of RAN2123 on BTS dimensioning
RAN21231 Gigabit Baseband
New licensing
aspectsNew licensing aspects
for System Module rel.2
New license for HSPA
New licenses describes HSPA performance (throughput and users)
HSDPA/HSUPA schedulers do not consume CE licenses any more.
Same approach for CE licenses
CE licenses are called now Rel99 CE licenses
R99 users consumes Rel99 CE licenses depending on bearer rate
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Impact of RAN2123 on BTS dimensioning
New dimensioning
rulesNew baseband dimensioningrules for System Module rel.2
RAN21231 Gigabit Baseband Processing capability of System Module Rel.2 is significantly
increased comparing to RU10/RU20
Common Control Channels dimensioning is similar as in RU10/RU20Basic configurations (e.g. 3cells/20km or 6cells/10km) are supported with baseband
resources included in System Module Rel.2 capacity
48 Rel99 CE licenses are required per each step
R99 dimensioning same as in RU20 On Top
HSPA dimensioning approach changeNew baseband dimensioning rules, HSPA thr., number of users improvement
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HSUPA Dimensioning
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HW in RU30Flexi WCDMA BTS (1/2)System Module Rel.2 capacityHSUPA activated
HSUPA activation does not consume any baseband resources*.
However for HSUPA users and throughput processing baseband resources (subunits) needs tobe allocated based on current traffic need.
HSUPA baseband resources allocation is performed in stepsso called HSUPA resourcesteps. One step is equal to of System Module rel.2 subunit.
HSUPA baseband capacity reservation is based on HSUPA license (HSUPA BTS processing
sets)
In case if R99 CE licensed baseband resources are overlapping HSUPA licensed basebandresourcesoverlapped resources can be dynamically exchanged between R99 and HSUPA
users
One HSUPA BTS processing set license corresponds to 6HSUPA resource steps (1,5 subunit)(RU30EP1/EP2)
One HSUPA processing set does not correspond to 1 Subunit (RU30EP2) (see details onfurther slides)
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HW in RU30Flexi WCDMA BTS (2/2)Interference cancellation units
In case when Interference Cancellation feature is activated, Interference Cancellation units
(PIC pool) needs to be commissioned in order to perform interference cancellation formapped HSPA cells.
One PIC pool requires one subunit. Number of PIC pool is commissioned by operator
One PIC supports up to 6 cells (interference cancellation can be done simultaneously in 3selected by BTS cells)
Cells from one frequency layer should be mapped to one PIC pool
One PIC pool supports up to 2 frequency layers
Note that HSUPA scheduler cooperates only with PIC pools located in the same SystemModule
With 4 way Rx diversity feature single PIC pool supports up to 3 cells (interferencecancellation can be done simultaneously in 1 cell selected by BTS)
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HSUPA baseband resources allocation in RU30HSUPA Processing Set in RU30EP1 and RU30EP2
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 stepsso called HSUPA resource steps. One
step is equal to of subunit.
1 HSUPA Processing Set corresponds to 1,5subunit
1 HSUPA Processing Set allows to reach 5.8Mbps or 24 users
HSDPA thr.,
users, HSDPA
cells
HSDPA thr.,users, HSDPA
cells
HSUPA
licensed
capacity
HSUPAlicensed
capacity
HSUPA thr.,
usersHSUPA thr.,
users
HSUPA BTS
Processing set licenses
HSUPA BTS
Processing set
Unlicensed BB
capacity
HSUPA licensedcapacity
Users/throughput
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HSUPA baseband resources allocation in RU30SRB processing
HSUPA
Scheduler
(subunits)
UL
In RU30 with System Module rel.2 HSUPA does not consume any Rel99 CE licenses
HSUPA
Scheduler
(subunits)
No-FDPCH capable
UE or
F-DPCH capable UE
(rel.7) but F-DPCH
feature not activated
FDPCH capable UE
(rel.7) and F-DPCH
feature activated
SRB
(1CE UL)
SRB
(1CE DL)DL
UL
DL
RU30 brings SRB
processing
improvement (no
additional 1 CE
(UL/DL) for HSUPA
user (UL:HSUPAbearer, DL:HSDPA
bearer)
Less baseband resources needed for HSUPA
Rel99 CE licenses are not needed for HSUPA
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HSUPA in RU30 EP12 HSUPA schedulers per one LCG
In RU30EP1 with System Module Rel.2, one HSUPA scheduler can support up to 200HSUPA users
from 1 to 12 cells.
Up to one HSUPA scheduler is allocated per single LCG with single System Module Rel.2
Up to two HSUPA schedulers are allocated per single LCG with two System Modules 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 400 HSUPA users supported per LCG (2 x System Module rel.2)
LCG1
f1
f2
400 HSUPA
users per LCG200 HSUPA
users per
Extension
System Module
200 HSUPA
users per
Master System
Module
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HSUPA in RU30 EP22 HSUPA schedulers per one LCG
In RU30EP2 with System Module Rel.2, one HSUPA scheduler can support up to 240HSUPA users
from 1 to 12 cells
Up to one HSUPA scheduler is allocated per single LCG with single System Module Rel.2
Up to two HSUPA schedulers are allocated per single LCG with two System Modules 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)
LCG1
f1
f2
480 HSUPA
users per LCG240 HSUPA
users per
Extension
System Module
240 HSUPA
users per
Master System
Module
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BaseBand resources allocationNon- Overlapping baseband resources
Rel99 CE licensesHSDPA
commissioned
throughput
System Module Rel.2
Free (unlicensed) baseband
resourcesnot available for
R99 users and HSPA data
users
License non- overlapping case
Baseband resources availablefor R99 users
HSUPA BTS
processing
sets
One HSUPA BTS Processing Set (equivalent
of 48 R99 CE) is always available for R99
users and HSUPA users*
* Note: 48 CE in each
LCG is always
dynamic (even without
license overlapping)
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BaseBand resources allocationOverlapping baseband capacity and static resources reservation
Rel99 CE licensesHSUPA BTS
processing
sets
Baseband resources available for HSUPA users
only!
Overlapping baseband capacity can be
dynamically share between HSUPA users and
R99 user*
System Module Rel.2
Rel 99 users
HSDPA
commissioned
throughput
HSUPA users
For overlapping Rel99 CE licenses and licensed HSUPA resources, commissioning can be performed in
order to guarantee resources for HSUPA.
NOTE: Up to four HSUPA resource steps can be statically commissioned for HSUPA
Overlapping scenario
* R99 users have always higher priority
HSUPA BTS
Processing sets
48CE
(dynamic)
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HSUPA resources allocation (1/2)
HSUPA scheduler supports different types of HSUPA users (2msTTI/10ms TTI, F-DPCH/no-FDPCH, CS
Voice over HSPA users) Each type of HSUPA user has different baseband requirements Required Baseband resources for HSUPA scheduler depends on number of CS Voice over HSPA and
HSUPA active users and combined L1 throughput
For HSUPA scheduler baseband resources dimensioning purpose few different tables according to theuser types should be used
In addition for HSUPA users transmitting with 16QAM (F-DPCH or no-FDPCH) additional rule should beapplied. One subunit is required for single 16QAM transmitting user
CS Voice over HSPA users consume Subunits. Max 18 CS Voice over HSPA users are allocated in singleSubunit
# of 16QAM transmitting UE (RU30EP2)
10ms TTI no-FDPCH dimensioning table
10ms TTI FDPCH dimensioning table
2ms TTI FDPCH dimensioning table
2ms TTI no-FDPCH dimensioning table
HSUPA scheduler baseband
resources for CS Voice over HSPA
and HSUPA data users#CS Voice over HSPA users
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HSUPA resources allocation (2/2)HSUPA requirements for simultaneous users and throughput
2ms TTI
FDPCH UEs
2ms TTI no-FDPCH UEs
16QAM 2ms
TTI (FDPCH/ no-FDPCH
UEs)
10ms TTI
FDPCH
UEs
HSUPA scheduler
baseband resources for
HSUPA dataand CS Voice
over HSPA users
10ms TTI no-
FDPCH UEs
1 Subunit for single
16QAM transmitting UE
10ms TTI no-FDPCH
dimensioning table
10ms TTI FDPCH
dimensioning table2ms TTI FDPCH
dimensioning table
2ms TTI no-FDPCH UEs
CS Voice
over HSPA
1 Subunit for 18 CS
Voice over HSPA users
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HSUPA subunits for 2ms TTI UEsFDPCH feature not activated or no-FDPCH capable UEs (SRB on DCH)
Table presents required number of subunits for HSUPA 2ms TTI no-FDPCH UEs
Note: figures are tentative and will be confirmed after final verification in pilot phase
2ms TTI no-
FDPCH UEs
Table assumes typical use case when the majority of the users are downlink data dominatedand the remaining users are UL data dominated.
HSUPA subunits for 2ms TTI UE in RU30 EP1 (without 16QAM)
Number of
HSUPAUEs
per
scheduler
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HSUPA subunits for 2ms TTI UEsFDPCH feature activated and FDPCH capable UEs (SRB on HSPA)
Table presents required number of subunits for HSUPA 2ms TTI FDPCH UEs
2ms TTI
FDPCH UEs
HSUPA subunits for 2ms TTI UE in RU30 EP1 (without 16QAM)
Number of
HSUPA UEs
perscheduler
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HSUPA subunits for 10ms TTI UEsFDPCH feature activated and FDPCH capable UEs (SRB on HSPA)
Table presents required number of subunits for HSUPA 10 ms TTI FDPCH UEs
10ms TTI
FDPCH UEs
HSUPA subunits for 10ms TTI UE in RU30 EP1
Number of
HSUPA UEsper
scheduler
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HSUPA subunits for 10ms TTI UEsFDPCH not feature activated or no-FDPCH capable UEs (SRB on DCH)
Table presents required number of subunits for HSUPA 10 ms TTI no-FDPCH UEs
10ms TTI no-
FDPCH UEs
HSUPA subunits for 10ms TTI UE in RU30 EP1
Number ofHSUPA UEs
perscheduler
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CS Voice over HSPA users consume Subunits. Up to 18 CS Voice over HSPA
users can be allocated in one Subunit
HSUPA subunits for CS Voice over HSPA users
Number of CS Voice over HSPA users Subunit
4 0.25
9 0.5
13 0.75
18 1
Each CS Voice over HSPA user decreases the maximum number of HSPA usersallowed by HSDPA and HSUPA scheduler user pool.
CS Voice over HSPA user does not consume Rel99 CE licenses. Each CS Voiceover HSPA user decreases the throughput and the number of users allowed bythe HSUPA Processing Set and the HSDPA Processing Set.
A CS Voice over HSPA user (as a regular HSPA user) has the same priority asHSPA user
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HSUPA dimensioning (1/2)RU30EP1/EP2 BB resources reservation
To calculate the subunits reservation inside System Module Rel.2 for mixed user type case, (F-DPCH/noFDPCH/2ms TTI/10msTTI users, 16QAM transmitting users and CS Voice over HSPA), the following rule
should be applied:
Where:
F-DPCH_2msTTI_Subunits = subunits required for HSUPA F-DPCH 2ms TTI usersF-DPCH_10msTTI_Subunits = subunits required for HSUPA F-DPCH 10ms TTI users
No-F-DPCH_2msTTI_Subunits = subunits required for HSUPA no-F-DPCH 2ms TTI users
No-F-DPCH_10msTTI_Subunits = subunits required for HSUPA no-F-DPCH 10ms TTI users
16QAM_2msTTI_Subunits = subunits required for HSUPA 16QAM simultaneously transmitting UEs (RU30EP2)
CS_Voice_over_HSPA_Subunitssubunits required for CS Voice over HSPA users.
HSUPA_Subunits = F-DPCH_2msTTI_Subunits + F-DPCH_10msTTI_Subunits +
no-F-DPCH_2msTTI_Subunits + no-F-DPCH_10msTTI_Subunits + 16QAM_2msTTI_Subunits
+ CS_Voice_over _HSPA_Subunits
Note: in some cases presented rule may lead to overestimation of baseband resources
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HSUPA dimensioning (2/2)RU30EP1/EP2 HSUPA Processing Sets requirements
In order to reach simultaneously certain number of HSUPA users (data + CS Voice over HSPA) and certaincombined L1 throughput , the following formula should be used to calculate required number of HSUPA BTS
ProcessingSets
Where:
HSUPA subunitssubunits required for HSUPA purpose (see formula)
Minimum amount of HSUPA BTS Processing Setsnumber of HSUPA BTS Processing Sets calculated for
certain HSUPA throughput or number of HSUPA users (see formula below)
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) )
Where:
Number_of_HSUPA_usersNumber of HSUPA users (data + CS Voice over HSPA)
HSUPA_throughputHSUPA users (data + CS Voice over HSPA) throughput [Mbps]
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HSUPA BTS Processing Set resources allocationHSUPA users/throughput distribution
Available HSUPA BTS processing set resources needs to be distributed among HSUPA schedulers
If Baseband pooling is used then BTS will divide HSUPA licenses between LCGs according tocommissioned share (HSUPA user/throughput license share). Sum of LCG shares is always 100%.
HSUPA licence share is performed with HSUPA BTS processing set licence granularity. If licenses
cannot be share equally between LCGs, in that case BTS will divide higher amount of licenses to
LCG starting from lowest LCG number. E.g.: if commissioned shares are 50% / 50% and there are 5
HSUPA licenses, then LCG1 gets 3 licenses and LCG2 gets 2 licenses.
If HSUPA scheduler is present in both System Modules (same LCG), in this case BTS will allocateHSUPA licenses proportionally to baseband capacity for traffic use of each system module, with
BTS processing set granularity.
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MultiRAB scenario in RU30HSPA + AMR
MiltiRAB call -> HSPA + AMR
R99 HSDPA HSUPA R99
- AMR call is served with HSUPA resources (Rel.99 CE licenses not needed)
- if HSPA user = non-FDPCH user => no impact on baseband consumption
- if HSPA user = FDPCH user => HSPA user should be treated (-> impact onHSUPA resources) as HSPA non-FDPCH user
- AMR call needs to be served at the same System Module as HSDPA scheduler
- Additional R99 resources (UL/DL) needs to be allocated for AMR call
- (1 Rel.99 CE license needed)
HSPA call (UL:HSUPA,
DL: HSDPA)
HSPA call (UL:R99,
DL: HSDPA)
AMR callAMR call
HSPA call(UL:HSUPA,
DL: HSDPA)
HSPA call
(UL:R99,
DL:
HSDPA)
SM rel.2 SM rel.2
Exemplary BTS
configuration:
- SM rel.2 + SM rel.2, 1LCG,
Frequency mapping to HW
not used
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Network ParametersRAN21231 Gigabit Baseband
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New network planning parametersHSUPA BB decoding capacity
Abbreviated name hsupaBbDecodCapacity
Parameter name HSUPA BB decoding capacity
Data type -
Description Defines Minimum HSUPA decoding capacity per LCG in Mbit/s.
Parameter group -
Classification LCELGW
Range and step0 Mbit/s (0), less than 1.4 Mbit/s (1), 1.4 Mbit/s (2),
2.8 Mbit/s (3), 4.2 Mbit/s (4), 5.6 Mbit/s (5)
Default value 0
Parameter used for static HSUPA commissioning (together with HSUPA BB minimum users parameter)
Static HSUPA baseband resources can not be taken by R99 traffic in case of license overlapping (Rel99CE licenses and HSUPA BTS Processing Sets licenses)
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New network planning parametersHSUPA BB minimum users
Abbreviated name hsupaBbMinimumUsers
Parameter name HSUPA BB minimum users
Data type -
Description Defines minimum amount of users allocate to baseband in HSUPA.
Parameter group -
Classification LCELGW
Range and step 0 - 24
Default value 0
Parameter used for static HSUPA commissioning (together with HSUPA BB decoding capacity parameter)
Static HSUPA baseband resources can not be taken by R99 traffic in case of license overlapping (Rel99CE licenses and HSUPA BTS Processing Sets licenses)
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New network planning parametersHSUPA user/throughput licence share
Abbreviated name shareOfHSUPALicences
Parameter name HSUPA user/throughput license share
Data type %
Description Parameter defines how many HSUPA licenses belongs to certain LCG. Sum of LCG
shares must be always 100%. No common pool is available. Granularity is one
license. If there is 50%/50% share and 5 lisences, LCG1 gets 3 licenses while LCG2
gets 2 licenses. Parameter have additionally special value -1 which means that
parameter is not in use. Note: Not applicable for rel1 HW.
Parameter group -
Classification LCELGW
Range and step 0 - 100; 1
Default value
Default value of parameter is 100% divided by number of LCGs (max number LCGs
in WN7.0 Flexi is 4). Following default values will be used: 1 LCG => 100%, 2 LCGs
=> 50%, 3 LCGs => 33, 4 LCGs => 25%
LCG 2LCG 1
HSUPA BTS
Processing set
HSUPA BTS
Processing set
HSUPA BTS
Processing setHSUPA BTS
Processing set
HSUPA BTS
Processing setDefines HSUPA license
distribution among LCGs
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New network planning parametersPIC Pool
Abbreviated name picPool
Parameter name PIC Pool
Data type Number
Description With this parameter operator is able to commission PIC pools in use.
Parameter group
Classification Operation and Maintenance
Range and step 1...4, step 1
Default value -
PIC Pool 1
PIC Pool 2
PIC Pool 3
PIC Pool 4
Parameter value:picPool (1)
Master System
Module
Extension
System Module
Parameter value:picPool (2)Parameter value:
picPool (3)Parameter value:picPool (4)
N k l i
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Network planning parametersHSUPA resource allocation, HSUPA BTS Processing sets
HSUPA BB minimum users
HSUPA BB decoding capacity
HSUPA BTS Processing Set 1one processing set allows to reach 24 HSUPA users and 5,8Mbps
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Thank you