06_01_rn30086en40gla1_wcdma active antenna system.pdf
TRANSCRIPT
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Selected site solutions: Active Antenna Systems
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Nokia Solutions and Networks Academy
Legal notice
Intellectual Property Rights All copyrights and intellectual property rights for Nokia Solutions and Networks training documentation, productdocumentation and slide presentation material, all of which are forthwith known as Nokia Solutions and Networkstraining material, are the exclusive property of Nokia Solutions and Networks. Nokia Solutions and Networks ownsthe rights to copying, modification, translation, adaptation or derivatives including any improvements ordevelopments. Nokia Solutions and Networks has the sole right to copy, distribute, amend, modify, develop,license, sublicense, sell, transfer and assign the Nokia Solutions and Networks training material. Individuals canuse the Nokia Solutions and Networks training material for their own personal self-development only, those sameindividuals cannot subsequently pass on that same Intellectual Property to others without the prior writtenagreement of Nokia Solutions and Networks. The Nokia Solutions and Networks training material cannot be usedoutside of an agreed Nokia Solutions and Networks training session for development of groups without the priorwritten agreement of Nokia Solutions and Networks.
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IntroductionMotivation and Feature Overview
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Active Antenna System
Flexi Multiradio Antenna System allows to create two cells arranged verticwithin one sector
Inner cell Outer cell
RAN2384 AAS Vertical Sectorization
RAN2383 AAS Active Antenna System 2100/1800 FAGF
Independent TX/RX tilting Independent carr
RAN2579 AAS RX/TX Tilting RAN2569 AAS Tilt
RX
TX
f1RX
TX
RAN 2597 AAS Active Antenna System 2100a/800-900p FAGP
• Active Antenna is a stand-alonefully operational multi-transceiver-antenna module.
• It includes full radio functionality(transmitter, receiver, antennaparts and related digital signalprocessing)
• Active antenna provides also(passive) antenna support for anexternal source (RRH/FRM)
• Power Amplifier (PA) for eachradiator element inside theantenna
• Intelligent beam-forming forcapacity enhancement
• Jumper cable losses eliminated• Less boxes
NEI Complex Introduction
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IntroductionMotivation and Benefits
• WCDMA network capacity enhancements due to trafficforecasts and the traffic evolution process
• Natural evolution step towards simplified sites ( lesselements, less visual impact, less weight, less wind load)
• Ability to provide innovative features like separate RX/TXtilting
• Optimize coverage, capacity, site space and costs
Motivations
T r a
f f i c v o u l u m e
Time
Voice traffic
Data traffic
Benefits
f1 or f2f1
• Integrated package of active RF parts and passive antenna elements are capable to provantenna features like:
• Vertical sectorization, separate rx/tx tilting, beam shaping, tilting per carrier• Active Antenna Vertical sectorization gives up to 65% capacity gain in DL and up to 1
gain in UL (upper bound achievable in case of high network load)
• Inner and Outer cell can operate on same frequency – doubled resour• In-built redundancy – multiple active elements inside active antenna• Compact site layout, improved power efficiency, no cable losses• Active Antenna enables advanced SON capabilities
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IntroductionCompact Site Evolution Steps
• Natural evolution step towards simplified sites: less elements, less visual impact, less weight, less wind load• Very compact Flexi Multiradio BTS Site as the last link in the chain
Radio
Modular siteTraditional site
System(baseband)
Modular site SingleRAN
Modular site w. activeantenna
RF Sharing
GSM WCDMA
GSMWCDMA
System Module Shar
MHA
A c t i v eAn
t enn
a
Software Defined RadioDedicated HW per Technology
2002 2012+20102006
GSM /WCDMA
Dual B Anten
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Technical DetailsFunctionality and Implementation
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Technical DetailsWhy Active Antenna System is Called Active? What is Integrated Antenna System (IAS)?
TRX
TRX
TRX
TRX
TRX
TRX
TRX
TRX
Common
RRH
RRH
• Standard passive antennasolution
• Single Power Amplifier (PA) -external RRH
• No capacity gains, no beam-forming
• Feeder and jumper losses
• Integrated Antenna System(IAS)
• Single Power Amplifier (PA) -RRH integrated to the back ofpassive antenna
• No capacity gains, no beam-forming possibilities
• Has the same functionality aswith standard RRH connected
to antennas withfeeders/jumpers
• Jumper cable losses eliminated• Less boxes• Improved site solution as no
separate RRH visible
• Activfullytrans
• It inc(tranpartsproce
• Activ(passexter
• Fromsolut
• Poweradiaanten
• Intelcapac
• Jump• Less
Passive Antenna + RRH Integrated Antenna System Active Antenna System
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RET port on Commonsub-module has beenremoved according to
CN5213
Technical detailsActive Antenna System datasheet
Optional integratedDC power distributor
Operating bands:• Active 2100 MHz (40MHz bandwidth)• Passive: 1800 MHz (FAGF) and 800-900 MHz (FAGP)
Antenna Gain:
• 18 dBi (active part)• 17,5 dBi (passive part FAGF)• 16,5 dBi (passive part FAGP)
Beam:• Horizontal beam width: 65 ° (3dB loss)
• Three horizontal sectors only• Maximum three horizontal sectors site layout at the
time being• Vertical beam width:
• 6...20 ° adjustable for active part (3dB loss)• 7
°
passive part (3dB loss)
Details:• 8 Power amplifiers (10W each) with total 80W power• 10 passive elements• Fully Electrical Vertical Tilt: +7 ° / -7 ° • +/-45
°
Polarization• MIMO Support (2Tx & 2Rx)• Dual Cell support• Power consumption < 400 W @ 48V (100% RF load)• RET interface for passive part (8P connectors at passive
part)
Flexi System Module Rel.3
Dimmensions (FAGF):• Height: 1480mm• Width: 240mm• Depth: 210mm• Weight: < 36kg
Other details:• Active cooling with long life fans• Operating temperature range:
• -40… +55 ° C (with solar shield)
Installation options:• Mast• Pole• Wall Mounting
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Technical detailsSite evolution steps
GSM
GSM RF
GSM
Common RFWCDMASystem
GSM
Common RFWCDMA
• Losses on the feeder cablescan be even higher than3dB, depending on length,connectors and type.
• Possible use of TMA
Traditional Site Solution:GSM 1800 (20W)
• RF Sharing applied• Separate System Modules• Separate Antenna Systems
per technology
Flexi Multiradio GSM1800 / WCDMA2100Site Solution
• RF Sharing applied• Dual-band antenna system
1800/2100
• Possible feeder-less solution
Flexi Multiradio GSM1800 / WCDMA2100with Dual-band antenna Site Solution
• D• A• G• F
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Technical detailsSelf Optimizing Network SON
• Flexi Multiradio Antenna System will support the Self Optimizing Network approach• Active elements and Common module inside AAS enables advaced Active Antenna features such as vertical beam width, separate TX/RX tilting and tilting per car• Different time of the day brings different traffic distribution within one geographical area• Flexi Multiradio Antenna System may adopt to these states via:
• Adjusting electrical tilts and vrtica beam width for both inner and outer cells• Setting separate RX/TX/carrier tilts• Enabling/disabling vertical sectorization
• These actions brings several benefits like power saving, capacity and coverage improvements
Independent cell/carrier/TX&RX tilting Vertical SectorizationSON
Adjusting tilt settings inresponse to change in
traffic distribution
Disabling verticalsectorization in the night
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Configuration ManagementParameters and Configuration
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Configuration ManagementParameters - Overview
• Flexi Multiradio Antenna System introduces the following set of parameters that can be used to achive desired configuration.Parameters belong to three different Managed Object Classes (MOCs):
Mechanical tilt angle
Vertical TX tilt angle
Vertical sector beamwidth
Vertical RX tilt angle
Vertical sectorization inuse
Tilting per TX/RX in use
Tilting per carrier in use
RMODRadio Module related parameters
LCELWWCDMA BTS Local Cell
configuration related parameters
BTSSCWWCDMA BTS radio specific
configuration related parameters
f1 or f2f1
Mechanical tiltangle
TX
RX
TXRX
Vertical TX tiltangle
Vertical RX tiltangle
Til
Vertical sectorizatin use
Tilting per TX/RX inuse
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Configuration ManagementParameters - Mechanical tilt angle
Mechanical tilt can be up to 10degrees below the horizon level(adjusted with 0.5 degree step)
Total downtilt = Mechanicaltilt + Electrical Tilt
Horizon level
• The Mechanical Tilt iphysically tilting dowantenna via antenna b
Mechanical tilt angle
Abbreviated name tiltAngleMechanical
Description
This parameter is used to define tilt angle. This information i
purposes only (changing the paramdoes not change mechanical tilt a
of the antenna).
MOC RMOD
Data type Number
Parameter group -
Range and step 0...10 deg, step 0,5 deg
Default value 7 deg
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Configuration ManagementParameters - Vertical TX tilt angle
• With AAS it is possible to adjust the tilts separately for downlink directions
• Simulations show that optimal tilts (giving the best netwgains) are distinct for uplink and downlink directions
• Thus, separate RX/TX tilting allows to achive highest g• If RX/TX Tilting License Key is not present, Vertical RX
equals Vertical TX tilt angle regardless of the rxVerticalparameter value
TX
RX
Vertical TX tilt angle
Abbreviated name txVerticalTiltAngle
DescriptionThis parameter is used to define T
tilt angle value.
MOC LCELW
Data type Number
Parameter group -
Range and step -7...7 deg, step 0,5 deg
Default value 0 deg
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Configuration ManagementParameters - Vertical RX tilt angle
Vertical RX tilt angle
Abbreviated name rxVerticalTiltAngle
DescriptionThis parameter is used to de
electrical tilt angle va
MOC LCELW
Data type Number
Parameter group -
Range and step -7...7 deg, step 0,5 deg
Default value 0 deg
• With AAS it is possible to adjust the tilts separately for downlink directions• Simulations show that optimal tilts (giving the best netw
gains) are distinct for uplink and downlink directions
• Thus, separate RX/TX tilting allows to achive highest g• If RX/TX Tilting License Key is not present, Vertical RX
equals Vertical TX tilt angle regardless of the rxparameter value
TX
RX
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Configuration ManagementParameters - Vertical sector beamwidth
• This setting can be used to control the size area that is covered by inner and outer cell.
• It also helps to reduce to the inter-cell inter• It is also a Self Optimizing Network (SON
functionality – network load can be wiselautomatically split between inner and outer
8 deg 14 deg
Vertical sector beamwidth
Abbreviated name sectorVerticalBeamWidth
DescriptionThis parameter is used to defi
vertical beam width (3dB loss pattern).
MOC LCELW
Data type Number
Parameter group -
Range and step 6...20 deg, step 0,5 deg
Default value 7 deg
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Configuration ManagementParameters - Vertical sectorization in use
Vertical sectorization in use
Abbreviated name verticalSectorizationInUse
DescriptionThe parameter is used to enablSectorization for Active Anten
MOC BTSSCW
Data type Boolean
Parameter group -
Range and step True, False
Default value False
f1f1
Two cells per one frequency created from one FlexMultiradio Antenna System.
When both parameters vert icalSector izatand t i l t ingPerCarrierInUse parameters are
True value, it is possible to define separate tilts fothese two cells and achieve vertically sectorizated
site layout.
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Configuration ManagementParameters - Tilting per TX/RX in use
Tilting per TX/RX in use
Abbreviated name tiltingPerTxRxInUse
DescriptionThe parameter is used to enable
TX/RX for Active Antenna
MOC BTSSCW
Data type Boolean
Parameter group -
Range and step True, False
Default value False
• This parameter enables separate tilt setting for RX and T• If tiltingPerTxRxInUse is set to True value, Active
set separate electrical tilt values for uplink and downlink
• If tiltingPerTxRxInUse is set to False value, Verticequals Vertical TX tilt angle regardless of the rxVparameter value
TX
RX
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Configuration ManagementParameters - Tilting per carrier in use
• Tilting per carrier replaces the RETpassive antenna
• It allows to set electrical tilt for onecoming from the Flexi Multiradio A
• If the parameter tiltingPerCarriervalue, the default value of electricalfor all beams coming from the AASapplies then only
tiltingPerCarrierInUseTRUE
tiltingPerCarrierInUseFALSE
Tilting per carrier in use
Abbreviated name tiltingPerCarrierInUse
DescriptionThe parameter is used to enable
Carrier (local cell) for Active Ant
MOC BTSSCW
Data type Boolean
Parameter group -
Range and step True, False
Default value False
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Configuration ManagementTX/RX resource allocation
• Next slides describe the TX and RX resource allocation at Flexi Multiradi
Cell 1
3 sector (horizontal) case3 AAS needed
4 cells (2 x Dual Cell) 10W(1Tx+1Rx)
Inner cell Outer cell
Cell 2
Dual CellMIMO
Dual CellMIMO
Cell 3Cell 3
Tx polarization 1
Rx polarization 1
Active Element 1(20W)
Active Element 2(20W)
Active Element 3(20W)
Active Element 4(20W)
Rx polarization 2
Tx polarization 2
Rx1.1.1 Rx1.1.2 Rx1.1.3 Rx1.1.4
Rx1.2.3 Rx1.2.4Rx1.1.1 Rx1.1.2
Rx2.1.1 Rx2.1.2 Rx2.1.3 Rx2.1.4
Rx2.2.3 Rx2.2.4Rx2.1.1 Rx2.1.2
Rx3.1.1 Rx3.1.2 Rx3.1.3 Rx3.1.4
Rx3.2.3 Rx3.2.4Rx3.1.1 Rx3.1.2
Rx4.1.1 Rx4.1.2 Rx4.1.3 Rx4.1.4
Rx4.2.3 Rx4.2.4Rx4.1.1 Rx4.1.2
Tx1.1.1 Tx1.1.2 Tx1.1.3 Tx1.1.4
Tx1.2.3 Tx1.2.4Tx1.1.1 Tx1.1.2
Tx2.1.1 Tx2.1.2 Tx2.1.3 Tx2.1.4
Tx2.2.3 Tx2.2.4Tx2.1.1 Tx2.1.2
Tx3.1.1 Tx3.1.2 Tx3.1.3 Tx3.1.4
Tx3.2.3 Tx3.2.4Tx3.1.1 Tx3.1.2
Tx4.1.1 Tx4.1.2 Tx4.1.3 Tx4.1.4
Tx4.2.3 Tx4.2.4Tx4.1.1 Tx4.1.2
Window shows the exact cell/sitelayout that can be achieved via the
particular RX/TX resource allocation
Figure describing the TX/RXresource allocation on each Activ
Element belonging to Active AntenSystem. Maximum output power p
Active Element is 20W.
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Configuration ManagementTX/RX resource allocation
3 sector (horizontal) case3 AAS needed
Tx polar
Rx polar
Active Element 1(5W)
Tx1.1.1
Tx1.2.1
Rx1.1.1
Rx1.2.1
Active Element 2(5W)
Tx2.1.1
Tx2.2.1
Rx2.1.1
Rx2.2.1
Active Element 3(5W)
Tx3.1.1
Tx3.2.1
Rx3.1.1
Rx3.2.1
Active Element 4(5W)
Tx4.1.1
Tx4.2.1
Rx4.1.1
Rx4.2.1
5W 5W 5W 5W
1 cell 20W (1Tx+2Rx)
2way RX div
Rx polar
10W 10W 10W 10W
Cell 1
• TX/RX resource allocation is done during the BTS CommisioningProcess
• Each Active Element maximum total output power is 20W(2x10W for example maximum per polarization is 10W).
• The following format is used in the figure below:• Tx. [ActiElementNumber] .[PolarizationNumber] .[CellNumbe• Rx. [ActiElementNumber] .[PolarizationNumber] .[CellNumbe
f
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Configuration ManagementTX/RX resource allocation
3 sector (horizontal) case3 AAS needed
Tx polar
Rx polar
Active Element 1(20W)
Tx1.1.1
Tx1.2.1
Rx1.1.1
Rx1.2.1
Active Element 2(20W)
Tx2.1.1
Tx2.2.1
Rx2.1.1
Rx2.2.1
Active Element 3(20W)
Tx3.1.1
Tx3.2.1
Rx3.1.1
Rx3.2.1
Active Element 4(20W)
Tx4.1.1
Tx4.2.1
Rx4.1.1
Rx4.2.1
10W 10W 10W 10W
1 cell 40W+ 40W MIMO(2Tx+2Rx)
MIMO
Rx polar
10W 10W 10W 10W Tx polar
Cell 1
• TX/RX resource allocation is done during the BTS CommisioningProcess
• Each Active Element maximum total output power is 20W(2x10W for example maximum per polarization is 10W).
• The following format is used in the figure below:• Tx. [ActiElementNumber] .[PolarizationNumber] .[CellNumbe• Rx. [ActiElementNumber] .[PolarizationNumber] .[CellNumbe
C fi i M
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Configuration ManagementTX/RX resource allocation
Cell 1
3 sector (horizontal) case3 AAS needed
2 cells 20W(1Tx+2Rx)
Inner cell Outer cell
Cell 2
2way RX div
2way RX div
Tx polar
Rx polar
Active Element 1(10W)
Tx1.1.1
Tx1.2.2
Rx1.1.1
Active Element 2(10W)
Tx2.1.1
Tx2.2.2
Rx2.1.1
Active Element 3(10W)
Tx3.1.1
Tx3.2.2
Rx3.1.1
Active Element 4(10W)
Tx4.1.1
Tx4.2.2
Rx4.1.1
5W 5W 5W 5W
Rx1.2.2 Rx polar
5W 5W 5W 5W Tx polar
Rx1.1.2
Rx1.2.1
Rx2.1.2 Rx3.1.2 Rx4.1.2
Rx2.2.2Rx2.2.1 Rx3.2.2Rx3.2.1 Rx4.2.2Rx4.2.1
• TX/RX resource allocation is done during the BTS CommisioningProcess
• Each Active Element maximum total output power is 20W(2x10W for example maximum per polarization is 10W).
• The following format is used in the figure below:• Tx. [ActiElementNumber] .[PolarizationNumber] .[CellNumbe• Rx. [ActiElementNumber] .[PolarizationNumber] .[CellNumbe
C fi ti M t
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Configuration ManagementTX/RX resource allocation
Cell 1
3 sector (horizontal) case3 AAS needed
4 cells (2 x Dual Cell) 10W(1Tx+2Rx)
Inner cell Outer cell
Cell 2
Tx polar
Rx polar
Active Element 1(10W)
Tx1.1.1
Active Element 2(10W)
Active Element 3(10W)
Active Element 4(10W)
Rx polar
Tx polar
Dual Cell2way RX div
Dual Cell2way RX div
Cell 3Cell 3
Tx1.1.2
Tx1.2.3 Tx1.2.4
Rx1.1.1 Rx1.1.2
Tx2.1.1 Tx2.1.2
Tx2.2.3 Tx2.2.4
Tx3.1.1 Tx3.1.2
Tx3.2.3 Tx3.2.4
Tx4.1.1 Tx4.1.2
Tx4.2.3 Tx4.2.4
5W
5W
5W
5W
5W
5W
5W
5W
Rx1.1.3 Rx1.1.4
Rx1.2.3 Rx1.2.4Rx1.2.1 Rx1.2.2
Rx2.1.1 Rx2.1.2 Rx2.1.3 Rx2.1.4
Rx2.2.3 Rx2.2.4Rx2.2.1 Rx2.2.2
Rx3.1.1 Rx3.1.2 Rx3.1.3 Rx3.1.4
Rx3.2.3 Rx3.2.4Rx3.2.1 Rx3.2.2
Rx4.1.1 Rx4.1.2 Rx4.1.3 Rx4.1.4
Rx4.2.3 Rx4.2.4Rx4.2.1 Rx4.2.2
• TX/RX resource allocation is done during the BTS CommisioningProcess
• Each Active Element maximum total output power is 20W(2x10W for example maximum per polarization is 10W).
• The following format is used in the figure below:• Tx. [ActiElementNumber] .[PolarizationNumber] .[CellNumbe• Rx. [ActiElementNumber] .[PolarizationNumber] .[CellNumbe
Configuration Management
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Configuration ManagementTX/RX resource allocation
Cell 1
3 sector (horizontal) case3 AAS needed
4 cells (2 x Dual Cell) 10W(2Tx+2Rx)
Inner cell Outer cell
Cell 2
Tx polar
Rx polar
Active Element 1(20W)
Active Element 2(20W)
Active Element 3(20W)
Active Element 4(20W)
Rx polar
Tx polar
Dual CellMIMO
Dual CellMIMO
Cell 3Cell 3
Rx1.1.1 Rx1.1.2 Rx1.1.3 Rx1.1.4
Rx1.2.3 Rx1.2.4Rx1.2.1 Rx1.2.2
Rx2.1.1 Rx2.1.2 Rx2.1.3 Rx2.1.4
Rx2.2.3 Rx2.2.4Rx2.2.1 Rx2.2.2
Rx3.1.1 Rx3.1.2 Rx3.1.3 Rx3.1.4
Rx3.2.3 Rx3.2.4Rx3.2.1 Rx3.2.2
Rx4.1.1 Rx4.1.2 Rx4.1.3 Rx4.1.4
Rx4.2.3 Rx4.2.4Rx4.2.1 Rx4.2.2
Tx1.1.1 Tx1.1.2 Tx1.1.3 Tx1.1.4
Tx1.2.3 Tx1.2.4Tx1.2.1 Tx1.2.2
Tx2.1.1 Tx2.1.2 Tx2.1.3 Tx2.1.4
Tx2.2.3 Tx2.2.4Tx2.2.1 Tx2.2.2
Tx3.1.1 Tx3.1.2 Tx3.1.3 Tx3.1.4
Tx3.2.3 Tx3.2.4Tx3.2.1 Tx3.2.2
Tx4.1.1 Tx4.1.2 Tx4.1.3 Tx4.1.4
Tx4.2.3 Tx4.2.4Tx4.2.1 Tx4.2.2
• TX/RX resource allocation is done during the BTS CommisioningProcess
• Each Active Element maximum total output power is 20W(2x10W for example maximum per polarization is 10W).
• The following format is used in the figure below:• Tx. [ActiElementNumber] .[PolarizationNumber] .[CellNumbe• Rx. [ActiElementNumber] .[PolarizationNumber] .[CellNumbe
Deployment Aspects
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Deployment AspectsLicenses Keys, Activation Processes and Example Confugurations
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Deployment Aspects
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Deployment AspectsExample configurations
• This slide presents AAS License Key combinations with typical order to use them
• 0-10 deg mechanical tilt• 0 deg Electrical Tilt• One cell per frequency
TX
RX
• 0-10 deg mechanical tilt• +/-7 deg Electrical tilt (Rx Tilt is the
same as Tx Tilt). Tilting per carrierreplaces the RET needed with passiveantenna.
• One cell per frequency
F1 or f2f1
• 0-10 deg mechanical tilt• +/-7 deg Electrical tilt (Rx Tilt is the
same as Tx Tilt). Tilting per carrierreplaces the RET needed with passiveantenna.
• Cell specific tilt values (in case morethan one cell configuration). This isnot possible with passive antennaRET.
• Two cells per frequency
RX
• 0-10 de• +/-7 de
Tilt canreplaceantenna
• Cell spethan onnot posRET
• Two ce
AAS Vertical SectorizationAAS Tilting per Carrier
AAS Tilting per CarrierNo license keys
Benefits and Gains
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Benefits and GainsSystem-level simulations both in static and dynamic simulators
Benefits and Gains
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Benefits and GainsSystem-level simulations
• Simulations performed in static and dynamic (NSN product aligned)system-level simulators
• Environment : Live network scenario – investigated area is the part of
the city that has more than one million citizens • Project area : North – South 4870m; West – East 5250m• Network : 55 sites,160 cells (320 cells in scenarios where Vertical
Sectorization has been applied)
• Results gathered from 10 central sites (indicated in black)• Propagation models : Dominant Path Model and 2D Propagation
Model
• Traffic Model : Full Buffer; FTP (dynamic simulator)• Link Level Curve : 256 – 11500 kbps
• Simulated services : HSDPA and HSUPA (dynamic simulator)• Electrical tilt range • Fixed vertical sector beamwidth (7 degrees)• User distribution : In static simulator users were distributed
according to some user distribution CDF. In dynamic simulator fixednumber of users were generated in each sector. During the simulationtime period users walk along the project area via randomly selectedroutes.
Simulation assumptions
Site within mask
Interferer site
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System-level simulations
• Simulation Methodology• On all sites, passive antennas have been replaced with AAS• Electrical and Mechanical Tilt optimization process has been
performed in 3x1 network layout
• The performance of the 3x1 network has been recorded• On each site, an inner cell has been introduced• The performance of the 3x2 network has been recorded• The AAS capacity gain has been calculated according to the
following formula:
Network Layout Tilt offset[inner/outer]
Total TXPower
(inner/outer)CPICH Power[inner/outer]
Cont
3x1 AAS Antennas - 43 dBm 33 dBm
3x2 based on AAS Antennas (Pilot Power Optimized)
+10 +0 40 dBm / 43 dBm 30dBm / Optimized (30-35 dBm) 30dBm / Optimiz
+8 +0 40 dBm / 43 dBm 30dBm / Optimized (30-35 dBm) 30dBm / Optimiz
+6 +0 40 dBm / 43 dBm 30dBm / Optimized (30-35 dBm) 30dBm / Optimiz
+2 -2 40 dBm / 43 dBm 30dBm / Optimized (30-35 dBm) 30dBm / Optimiz
Scenarios
f1
%100* _ 13
_ 13- _ 23 _
e Performanc xe Performanc xe Performanc x
Gain AAS = The reference point for tilt offsets in 3x2 scenarios is an optimized tilt in
Benefits and Gains
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HSDPA System-level simulations
Simulator Network Layout Mean CellTP [kbps] Gain
Static
3x1 AAS Antennas 2062 -3x2 AAS Antennas +10 +0 1805 75%3x2 AAS Antennas +8 +0 1778 72%3x2 AAS Antennas +6 +0 1775 72%
3x2 AAS Antennas +2 -2 1609 56%
Dynamic
3x1 AAS Antennas 3254 -3x2 AAS Antennas +10 +0 2566 58%3x2 AAS Antennas +8 +0 2479 52%3x2 AAS Antennas +6 +0 2257 39%3x2 AAS Antennas +2 -2 2099 29%
2 D P a t
h l o s s
HSDPA Results:
• The best performance (AAS Gain) is observed for „+10 +0” tilt offsets • From sector and site point of view vertical sectorization brings clear benefit
DPM=Dominant Path Model
Benefits and Gains
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HSDPA System-level simulations
SectorTP
[kbps]
UE TP[kbps]
SectorTP
[kbps]
UE TP[kbps]
Now(650 UEs per mask)
2487 128,6 4038 206,3
Future(1100 UEs per mask)
2481 73,3 4204 123,0
Without VerticalSectorization
With VerticalSectorization
• AAS Vertical Sectorization solution brings benefits in current and future network load (static simulator analysis)
AAS VS allows to keep Mean UEthroughput at the same level in thefuture (with higher number of UEs)
AAS VS improves Mean UEthroughput when constant number
of UEs is considered
.00
200.00
400.00
600.00
800.00
1000.00
1200.00
80 160 480 640 800 1120 1600 3199 M e a n
U E T h r o u g
h p u
t [ k b p s
]
# of UEs
UE Throughput
With AAS Vertical SectorizationWithout AAS Vertical Sectorization
0
1000
2000
3000
4000
5000
6000
80 160 480 640 800 1120 M e a n
U E T h r o u g
h p u
t [ k b p s
]
# of UEs
Cell Throughput
With AAS VerticaWithout AAS Ver
Benefits and Gains
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HSUPA System-level simulations
Simulator Network Layout Mean CellTP [kbps] Gain
Dynamic
3x1 AAS Antennas 673.0 -
3x2 AAS Antennas +10 +0 742.0 121%
3x2 AAS Antennas +8 +0 757.0 125%
3x2 AAS Antennas +6 +0 745.0 121%
3x2 AAS Antennas +2 -2 722.0 115%
Dynamic
3x1 AAS Antennas 699.0 -
3x2 AAS Antennas +10 +0 792.0 127%
3x2 AAS Antennas +8 +0 809.0 131%
3x2 AAS Antennas +6 +0 823.0 135%
3x2 AAS Antennas +2 -2 822.0 135% D P M P a t
h l o s s
2 D P a t
h l o s s
HSUPA Results:
• Very good gain (up to 135%) in mean value of site throughput is observed• With AAS VS users are served by 2 cells in one sector – it gives additional space for sum of received signal on BTS• Average UE throughput is significantly increased (even twice) after AAS Vertical Sectorization deployment• Even if one user is served by inner cell then other users have room (in terms of free noise rise level) for increasing UL Tx Power
Benefits and Gains
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Drive test results
Benefits and Gains
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HSUPA System-level simulations
Simulator Network Layout Mean CellTP [kbps] Gain
Dynamic
3x1 AAS Antennas 673.0 -
3x2 AAS Antennas +10 +0 742.0 121%
3x2 AAS Antennas +8 +0 757.0 125%
3x2 AAS Antennas +6 +0 745.0 121%
3x2 AAS Antennas +2 -2 722.0 115%
Dynamic
3x1 AAS Antennas 699.0 -
3x2 AAS Antennas +10 +0 792.0 127%
3x2 AAS Antennas +8 +0 809.0 131%
3x2 AAS Antennas +6 +0 823.0 135%
3x2 AAS Antennas +2 -2 822.0 135% D P M P a t
h l o s s
2 D P a t
h l o s s
HSUPA Results:
• Very good gain (up to 135%) in mean value of site throughput is observed• With AAS VS users are served by 2 cells in one sector – it gives additional space for sum of received signal on BTS• Average UE throughput is significantly increased (even twice) after AAS Vertical Sectorization deployment• Even if one user is served by inner cell then other users have room (in terms of free noise rise level) for increasing UL Tx Power
Trial case: Improvement of office campus coverage and
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p p gcapacity
Route ~
Challenge: high traffic from campus, lack of
capacity at cell edge areaTarget: Create high capacity with new AAS cell
and improved coverage at campus area
Case: One cellCase: Two cell= vertical sectorization
Site introduction
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AAS site:• 1*FSME• 1*power
6-sector site Active antenna• Two sectors
vertical sectorization• Electrical tilting• 8*10W• MIMO
Seamless integratioFlexi BTS site. F
Effortless and fast imwithout separate
antenna lin
Tilt and coverage area example
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Cell 1
Cell 2
Bringing doubled resources in “old” sectorarea with using cell specific tilting
5.5 ° Cell 1
Cell 2
Case example (-3 ° /-8.5 °):Cell 1: tilt -3 ° Cell 2: tilt -8.5 °
AAS4° mechanicaldown tilt (-4 °)
Cell 1 (outer) = 3 ° down tilt (-3 °)
Cell 2 (inner) = 8.5 ° down tilt (-8.5 °)
Inner and outer celltilt angle separation
AAS tilt control is one key develo• NetAct – Manual control• Optimizer/SON – semi or ful
Dominance – Driver for good performance, powered by
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electrical tilting and SONCase 1:Cell 1: tilt -2 ° Cell 2: tilt -7 °
5° Cell 1
Cell 2
RSCP = -86.44 dBm RSCP
Cell 2Cell 1
HSDPA thr. = 2.28 Mbps HSDPA
Cell 2Cell 1
Trial experienced different setting to creategood serving cell dominance area.
AAS provides accurate and efficient dominancecontrol with integrated electrical tilting
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Good dominance with good inner and outer cell signal strength
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leads to high Throughput
Case 3Case 2Case 1 Case 4
Case 3 (-1.5 °/-8.5 °) = 2.61 Mbps
Case 2 (-2 °/-9°) = 2.52 Mbps
Case 1 (-2 °/-7°) = 2.28 Mbps
Case 4 (-3 °/-8.5 °) = 3.43 Mbps
Averagpe(51
Case 1
4
Coverage gain – AAS brings clear coverage increase in uplinkd d l k
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and downlink
Case 2: Single sector(-3 ° /not used)
Case 1: Verticalsectorization (-3 ° /-8.5 ° )
5.5 ° Cell 1
Cell 2n/aCell 1
n/a Case
Case
HSDPA measurements result:4 dB higher RSCP level for verti
Case 2: UE
Case 1: UE
HSDPA measurements result:
~6-9 dB better UE TX power for
Coverage gain – AAS brings clear coverage increase in uplinkd d li k
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− In this measurement case there is no RX diversity used, also in single sectcase uplink doesn’t have softer HO (thus -3dB from gain)
− Additional gains for vertical sectorization are related on two main beamsinstead of one (e.g. tolerance against shadowing)
− Tilting and overlap has high impact on TX power− 3dB can be taken off from vertical sectorization as single cell does not hav
softer HO− Note: RX diversity is turned off for this test, but then we could also see
benefit from AAS so called semi-4way RX diversity
and downlink, cont.
Capacity gain – Loading of inner cell releafs capacity for outerll
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cell users.Mobile user experience
Cell 1: tilt -2 ° Cell 2: tilt -8.5 °
6.5 ° Cell 1Cell 2
Average drive test DL throughput (Mbps):Vertical Sectorization = 1.32 MbpsSingle cell = 1.09 MbpsVertical gain for DT user = ~21%
Full sector users experi
Average DL sector throughput (M- Vertical sectorization = 3.77 M- Single cell = 2.23 MbpVertical gain for full sector = ~70
Drive test user experiencing inaverage +20% higher throughput
Full sector throughincreased by +70%
Doubled resources – Driving ultimate end-user experience alt th ll d
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at the cell edge.
(vertiSingle Cell
Average drive test user +30% higherthroughput for whole drive route
Drive test user throughputpeaks even +200%
Outer cell bringing new resources to cell edge Throughput >2.5 Mbps
Dediccel
Lack of capacity inSingle cell case
• Case AAS, in the inner cell area, resources areshared with three users but when car is locatedat outer cell then sharing is between two users.
• Case single cell three user sharing takes placefor whole area
Focus of Active Antenna is to double resourcesfor users in the existing sector. Creation of newcell to serve campus and at the same timeenabling dedicated resources for cell edge users.
Backup
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IntroductionGeneral Release Information
Table of Conte
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Release Information for:RAN2383 AAS Active Antenna System 2100act/1800pas, FAGFRAN2597 AAS Active Antenna System 2100act/800-900pas, FAGP
Release Information for:RAN2384 AAS Vertical SectorizationRAN2569 AAS Tilting per CarrierRAN2579 AAS RX/TX Tilting
WCDMA Release RU40
I-HSPA System I-HSPA Rel.5
RNC Release support not required
mcRNC Release support not required
BTS (Flexi) WBTS 8.0
BTS HW(one of the following HWelements is required)
RAN2382 Flexi System Module FSMCRAN1016 Flexi System Module FSMDRAN1848 Flexi System Module FSMERAN2262 Flexi Multiradio System Modules (FSMF)
NetAct support not required
BSW/ASW BSW
License control -
WCDMA Release RU40
I-HSPA System I-HSPA Re
RNC Release support not req
mcRNC Release support not req
BTS (Flexi) WBTS 8.
BTS HW(one of the following HWelements is required)
RAN2382 Flexi System Module FRAN1016 Flexi System Module FRAN1848 Flexi System Module FRAN2262 Flexi Multiradio System
NetAct OSS5.4
BSW/ASW ASW
License Control BTS License
IntroductionWith and Without RAN2384 AAS Vertical Sectorization and RAN2569 AAS Tilting per Carrier
Table of Conte
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f1 f1 or f1
RAN2384 Activated
RAN2384Not activated
• Without these features, it is not possible to create two separatecells arranged vertically and using the same frequency
• The operator cannot get capacity gain coming from verticalsectorization
• All users located at antenna azimuth are served by one cell• Cell resources are shared among all users
• With these features, it is possible to form two seone active antenna (one frequency is divided intarranged cells)
• Resources available for the users are doubled• Users located at antenna azimuth are served by i
Cell resources are shared among lower number o
• Capacity gain up to 65% in DL and up to 135%
Only one cell on particular frequency can be created at antenna azimuth Two cell on one frequency created by the Flexi Multiradio An
RAN2569Not activated
RA
IntroductionWith and without RAN2579 AAS RX/TX Tilting
Table of Conte
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RAN2579 Activated
RAN2579Not activated
• With RAN2579, it is possible to adjust the tilts separately foruplink and downlink directions
• Simulations show that optimal tilts (giving the best networkcapacity gains) are distinct for uplink and downlink directions
• Thus, separate RX/TX tilting allows to achive highest gains• Wide range of optimization possibilities• Togehter with Vertical Sectorization and Tilting per Carrier,
Separate RX/TX Tilting brings ultimate solution to WCDMAnetworks based on AAS
TX
TX
RX
• Without this feature, it is not possible to set separate tilts for uplink and downlinktransmission
• The Active Antenna System sets exactly the same electrical tilt value for RX andTX directions
• Coverage and capacity optimization possibilities are limited
HW details
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Technical detailsHW Architecture – Common Module
Table of Conte
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Active Antenna (AA)
Antenna (A)
RF BB & ActiveElementControl
TX
TX
PA
PA
LNA
LNARX
RX
DuplexFilter
DuplexFilter
AA calibration & RF Loop
RF BB & ActiveElementControl
TX
TX
PA
PA
LNA
LNARX
RX
Duplex
Filter
DuplexFilter
AA calibration & RF Loop
RF BB & ActiveElementControl
TX
TX
PA
PA
LNA
LNARX
RX
DuplexFilter
DuplexFilter
AA calibration & RF Loop
Active Element (AE)
Active Element (AE)
Active Element (AE)
• Comon sub-module is an integrated part of Active Antennis to interconnect Active Elements to BTS (System Modu
Active Antenna/RRH in the same RP3-01 chain.
• Common sub-module also manages and handles those fun
common to other blocks inside Active Antenna:• O&M of whole Active Antenna• SW storing and downloading to CM
and also to AEs
• Power supply and distribution to AEs• Clock and timing generation and
distribution to AEs
• Calibration execution and control• Power measurements of radiation
pattern (beams)
• External interfaces (optical RP3-01,External Alarm & Control IF)
• Four internal electrical RP3-01interfaces towards active elements.
• In-built fans controlling
Common(CM)
AA PowerSupply
External IF
AAcalibration
AA control
Power
RP3-01
RP3-01
Technical detailsHW Architecture – Active Elements
Table of Conte
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Active Antenna (AA)
Common(CM)
Antenna (A)
AA PowerSupply
External IF
AAcalibration
AA control
Power
RP3-01
RP3-01
• Active Element (AE) sub-module (4 pcs)• Active Element control (including supervision &
recovery)
• RP3-01 processing• Synchronization• Multiplexing• Demultiplexing• Forwarding
• Air interface timing, phase & amplitude control• RF-BB (Radio Front End BaseBand) processing
(filtering, up- & down conversions, linearizationpower measurements, gain control)
• Analog-to-Digital and Digital-to-Analogconversions
• RF processing (Tx chain, Power amplification,Duplex filtering, Low noise amplification, Rxchain)
• RF interfaces for two cross polarized antennas• Each Power Amplifier (PA) is 10W
RF BB & ActiveElementControl
TX
TX
PA
PA
LNA
LNARX
RX
DuplexFilter
DuplexFilter
AA calibration & RF Loop
RF BB & ActiveElementControl
TX
TX
PA
PA
LNA
LNARX
RX
Duplex
Filter
DuplexFilter
AA calibration & RF Loop
RF BB & ActiveElementControl
TX
TX
PA
PA
LNA
LNARX
RX
DuplexFilter
DuplexFilter
AA calibration & RF Loop
Active Element (AE)
Active Element (AE)
Active Element (AE)
Technical detailsHW Architecture – Antenna
Table of Conte
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Active Antenna (AA)
Common(CM)
RF BB & ActiveElementControl
TX
TX
PA
PA
LNA
LNARX
RX
DuplexFilter
DuplexFilter
AA calibration & RF Loop
RF BB & ActiveElementControl
TX
TX
PA
PA
LNA
LNARX
RX
Duplex
Filter
DuplexFilter
AA calibration & RF Loop
RF BB & ActiveElementControl
TX
TX
PA
PA
LNA
LNARX
RX
DuplexFilter
DuplexFilter
AA calibration & RF Loop
AA PowerSupply
Active Element (AE)
External IF
AAcalibration
AA control
Active Element (AE)
Active Element (AE)
Power
RP3-01
RP3-01
• Antenna (A) sub-module:• Forms an interface between an AE radio transmi
space
• It provides:• High efficient, cross- polarized, antenna
a desired horizontal and vertical pattern
• Feed-back signal for Active Antenna cal• Cross-polarized RF inputs for 1800MHz
array
Calibration
Antenna (A)
InterdependenciesInterdependencies with Other Features or Functions
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InterdependenciesFeature Interdependancies
Table of Conte
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RAN 2383 AAS Active Antenna
System 2100act/1800pasFAGF
RAN 2597 AAS Active Antenna
System 2100a/800-900pFAGP
• RAN2383 AAS Active Antenna System 2100act/1800pas FAGF and RAN2597 AAS Active Antenna System 2100a/800-900p FAGP requires Flexi SysModule Release 2 or 3:
• RAN2382 Flexi System Module FSMC• RAN1016 Flexi System Module FSMD• RAN1848 Flexi System Module FSME• RAN2262 Flexi Multiradio System Modules (FSMF)
RAN2382Flexi System
Module FSMC
RAN2262Flexi Multiradio System
Modules (FSMF)
RAN1016Flexi System
Module FSMD
RAN1848Flexi System
Module FSME
or
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Simulation backup
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Benefits and GainsSystem-level simulations
Table of Conte
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Ground height map
00.1
0.2
0.3
0.4
0.5
0.6
0.70.8
0.9
1
0 20 # of users per
User density CDClutter type map
Benefits and GainsSystem-level simulations
Table of Conte
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• Red points receive the signal in two ways:• Simple geometry (building height is not taken into account)• Prediction model with 3D property (signal received via
diffracted ray)
• The higher masking angle difference impact could appear in somelocations close to a transmitter.
• The masking angle difference for receiver point close to thetransmitter is applicable to both outer (interferer) and inner (serving)antennas. Thus, pathloss difference of inner and outer cells seemsto compensate each other for close locations.
DPM predictions Simple
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Benefits and GainsSystem-level simulations
Table of Conte
3x2 DPM +10 +0 PilotOPT
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• Red, orange and yellowmeans inner cell dominancearea
• Blue, dark blue and purplemeans outer cell dominancearea
3x2 DPM +10 +0 PilotOPT
outer cell dominance cell’s fronti
Pathloss delta map of inner and outer cell
Inner and Outer celldominance area
investigation.
Benefits and GainsSystem-level simulations
Table of Conte
3x2 DPM +8 +0 PilotOPT
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• Red, orange and yellowmeans inner cell dominancearea
• Blue, dark blue and purplemeans outer cell dominancearea
3x2 DPM +8 +0 PilotOPT
outer cell dominance cell’s fronti
Pathloss delta map of inner and outer cell
The bigger beamseparation angle is,the greater inner celldominance area is.
Benefits and GainsSystem-level simulations
Table of Conte
3x2 DPM +6 +0 PilotOPT
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• Red, orange and yellowmeans inner cell dominancearea
• Blue, dark blue and purplemeans outer cell dominancearea
3x2 DPM +6 +0 PilotOPT
outer cell dominance cell’s fronti
Pathloss delta map of inner and outer cell
The bigger beamseparation angle is,the greater inner celldominance area is.
Benefits and GainsSystem-level simulations
Table of Conte
3x2 DPM +2 -2 PilotOPT
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• Red, orange and yellowmeans inner cell dominancearea
• Blue, dark blue and purplemeans outer cell dominancearea
3 otO
outer cell dominance cell’s fronti
Pathloss delta map of inner and outer cell
Beam separation isa trade-off between
the cell’s dominanceclarity (lower
interference) andsize of the inner cell
Benefits and GainsHSDPA System-level simulations
Table of Conte
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Simulator Network Layout Mean CellTP [kbps] Gain
Static
3x1 AAS Antennas 2062 -
3x2 AAS Antennas +10 +0 1805 75%
3x2 AAS Antennas +8 +0 1778 72%
3x2 AAS Antennas +6 +0 1775 72%
3x2 AAS Antennas +2 -2 1609 56%
Dynamic
3x1 AAS Antennas 3254 -
3x2 AAS Antennas +10 +0 2566 58%
3x2 AAS Antennas +8 +0 2479 52%
3x2 AAS Antennas +6 +0 2257 39%
3x2 AAS Antennas +2 -2 2099 29%
Static
3x1 AAS Antennas 2487 -
3x2 AAS Antennas +10 +0 2019 62%
3x2 AAS Antennas +8 +0 2027 63%
3x2 AAS Antennas +6 +0 1975 58%
3x2 AAS Antennas +2 -2 1857 49%
Dynamic
3x1 AAS Antennas 3799 -
3x2 AAS Antennas +10 +0 2790 47%
3x2 AAS Antennas +8 +0 2743 44%
3x2 AAS Antennas +6 +0 2595 37%
3x2 AAS Antennas +2 -2 2340 23%
D P M P a t
h l o s s
2 D P a t
h l o s s
HSDPA Results:
• The best performance (AAS Gain) is observed for „+10 +0” tilt off• From sector and site point of view vertical sectorization brings cle• HSDPA CIR curve has better geometry in 3x1 scenario than 3x2 sc
cell interferences while vertical sectorization is deployed
• In all investigated AAS configurations CIR HSDPA level is lower
0
0.1
0.2
0.30.4
0.5
0.6
0.7
0.8
0.9
1
-10 -8 -6 -4 -2 0 2 4
C D F
HSDPA CIR [dB]
HSDPA CIR (DPM;Static)
DPM 3x1 AAS AntennasDPM 3x2 +10 +0 PilotOPTDPM 3x2 +8 +0 PilotOPTDPM 3x2 +6 +0 PilotOPTDPM 3x2 +2 -2 PilotOPT
DPM=Dominant Path Model
Benefits and GainsSystem-level simulations Summary
Table of Conte
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f1f1 f1f1
f1
3x2 tilt offsets +6 +0 3x2 tilt offsets +10 +0 3x1 scenario 3x2 sc
HSDPA
• Considering DL direction, the strongest source of inter-cellinterference for an inner cell is an outer cell ( and vice versa)
• The higher tilt offset between the inner and outer cell, the betterbeam separation is (in terms of pathloss). Lower level of signal isvisible as interference in outer cell (and vice versa)
• This is a reason why +10+0 tilt offsets combination gives betterresults in downlink than +6+0
• In simulations, a fixed vertical beamwidth has been used due toavailability limitations – flexible vertical beamwidth gives anopportunity to control the size of inner/outer cell dominance area
HSUPA
• Considering UL direction, cell’s do not interfe• Users who are served by one cell in reference
scenario are served by both inner and outer cel
• That means more resources are available (in tebe used. Users can transmit with higher bitrate
• More users are served by the inner cell if smalseparation is applied.
• The capacity gain in uplink is higher when usemore equaly between the outer and inner cells
• In simulations, a fixed vertical beamwidth hasavailability limitations – flexible vertical beopportunity to control the size of inner/outer c
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References and AbbreviationsActive Antenna System NEI References
Table of Conte
https://wah.inside.nokiasiemensnetworks.com/WISites/NSNDEMU01/http://pddb.inside.nokiasiemensnetworks.com/pddb/http://pddb.inside.nokiasiemensnetworks.com/pddb/https://wah.inside.nokiasiemensnetworks.com/WISites/NSNDEMU01/
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• AAS System Feature Specification • FAGF Flexi Multiradio Antenna 2100/1800 HW Architecture Specification • NetEng AAS Vertical Sectorization Capacity Study • PDDB WBTS.WN8.0 1.0-1.0 parameter report • NSN Active Antenna System Executive Summary • Focal Point AAS Feature extract • NSN Flexi Multiradio Antenna System Customer Presentation • NSN Flexi Multiradio Antenna System Datasheet
References and AbbreviationsActive Antenna System NEI Abbreviations
Table of Conte
2D T Di i f1 F #1
https://wah.inside.nokiasiemensnetworks.com/WISites/NSNDEMU01/http://pddb.inside.nokiasiemensnetworks.com/pddb/http://pddb.inside.nokiasiemensnetworks.com/pddb/https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D462638923http://pddb.inside.nokiasiemensnetworks.com/pddb/https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D443475381https://focalpoint-prod.inside.nokiasiemensnetworks.com/fp/servlet/Loginhttps://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D428895151https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D429218795https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D429218795https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D428895151https://focalpoint-prod.inside.nokiasiemensnetworks.com/fp/servlet/Loginhttps://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D443475381https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D443475381https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D443475381https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D443475381https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D443475381https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D443475381https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D443475381https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D443475381https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D443475381https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D443475381https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D443475381http://pddb.inside.nokiasiemensnetworks.com/pddb/http://pddb.inside.nokiasiemensnetworks.com/pddb/http://pddb.inside.nokiasiemensnetworks.com/pddb/http://pddb.inside.nokiasiemensnetworks.com/pddb/http://pddb.inside.nokiasiemensnetworks.com/pddb/http://pddb.inside.nokiasiemensnetworks.com/pddb/http://pddb.inside.nokiasiemensnetworks.com/pddb/http://pddb.inside.nokiasiemensnetworks.com/pddb/http://pddb.inside.nokiasiemensnetworks.com/pddb/http://pddb.inside.nokiasiemensnetworks.com/pddb/https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D462638923http://pddb.inside.nokiasiemensnetworks.com/pddb/http://pddb.inside.nokiasiemensnetworks.com/pddb/https://wah.inside.nokiasiemensnetworks.com/WISites/NSNDEMU01/
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2D Two Dimension f1 Frequency #1
3D Three Dimension f2 Frequency #2
AA Active Antenna GSM Global System for Mobile Com
AAS Active Antenna System HSDPA High-Speed Downlink Packet A
BTS Base Transceiver Station HSUPA High-Speed Uplink Packet Acc
BTSOM Base Transceiver Station Operation and Maintenance IAS Integrated Antenna System
CDF Cumulative Distribution Function LNA Low Noise Amplifier
CIR Carrier-to-Interference ratio MBB Mobile Broadband
CM Common Module MIMO Multiple Inputs Multiple Outp
deg Degree MOC Managed Object Class
div Diversity NEI Network Engineering Info
DL Downlink NSN Nokia Siemens Networks
DPM Dominant Path Model O&M Operation and Maintenance
Q&A
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Question: What is the power of the power amplifier in Active antenna?Single power amplifier is 10W. There are eight power amplifiers inside Active Antenna (two for each Active Element).
Question: What is the total weight of the passive and active part of the AAS?For FAGF HW module, the total weight is less than 36 kilograms. Detailed data related to different HW modules can be found in the HW specification documents.
Question: It is unclear how we can separate UL noise of outer cell from UL noise of inner cell.Splitting one horizontal sector into to two vertically arranged cells gives more resources in terms of noise rise.
Question: Can we switch between active & passive mode (eg change GSM to active & WCDMA to passive)? Will this be also supporting LTE.
Specific Active Antenna HW module is designed to work in a specific frequency configuration. WCDMA can operate on 2100 MHz (in case of FAGF and FAGP). Passive pawhatever operator wants: WCDMA/GSM/LTE. For active frequency band in LTE there are dedicated HW modules.
Question: Isn't it true that beam forming is possible with one PA by placing phase-shifters between PA and antenna element?The beamforming mechanism controls the phase and amplitude of the signal to create a pattern of constructive and destructive interference in the wavefront. In case of Activein RU40, there is no user specific beamforming – only fixed beamforming is supported. That means the electrical tilts of each carriers and transmission direction (UL, DL Additionally, it is possible to shape the beam – make it wider or narrower in vertical plane (via setting Vertical Beam Width parameter).
Question: The tilt parameters belong to WBTS configuration data - do we need to reboot WBTS when we change tilt values?WBTS restart is not required after changing the tilt settings.
Question: How to verify whether ASW features are properly activated? How to deactivate them?There is no simple way to check whether ASW features work properly. The best way to check is to perform measurements in anechoic chamber. It may happen that the BTS sthe parameter values of ASW features but the Common Module inside the Active Antenna will not execute e.g. tilt setting because the license is missing.
Question: Are the amplifiers in the dual band antenna?Power amplifiers inside active antenna work only for active part of the antenna. To operate on passive part, additional RF module is required.
Question: Regarding passive part: What TILT options do we have? (Electrical and Mechanical)?Mechanical tilt is common for active and passive part of Active Antenna HW module. On passive part of the AAS there are 8P connectors to connect RET control for passive
Question: Regarding active part: Do we have option of UPTILT? (in the case we apply MECHANICAL tilt on the PASSIVE), but don't want TILT on active?Yes it is possible. Electrical tilt range for active part is: degrees.
Question: RP3-01 link, is it 6 Gbps or 3 Gbps?Link speed signal for RP3-01 interface is: Low-state 3072 Mbps and high-state 6144 Mbps
Q&A
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Question: If you can have only 3 sector of 65° with Inner and Outer, is it possible to use 4 carriers for an operator which have 20MHz band in 3G with One active antenna, "coupling " passive or is it necessary to have 2 antennas?It is possible to use up to 8 WCDMA carriers with one AAS (40MHz bandwidth).
Question: Question on the Operating bands can we have AAS on UMTS 900?Currently, only two HW modules are going to be available in RU40 – both of them operates on 2100 MHz active frequency band. There are plans to introduce HW morequency bands but no strong statements at the moment.
Question: In this example (slide 42) can we have both TX on same polarization?
Yes, such an allocation is possible as well. This was just an example.Question: Typo on slide 45 second bullet point max power of AE is 10W not 20W.
There is no typo in this slide. Each Active Element is equipped with two power amplifiers. Each power amplifier is 10W.
Question: Can we have also 4 way RX configuration with a single cell with AAS?This configuration (4-way RX div) is not supported at the moment.
Question: In slide 46 we have same polarization numbers with different polarizations!Yes, you are right. My mistake – slide is already corrected. Thank you!
Question: Are all these 3 features are independent (Vertical sectorization, Tilting per carrier , RX/TX tilting?There are no interdependencies between these features (they can work either all together or separately).
Question: Did you compare 3x1 AAS to 3x1 Passive?This comparison is done in the following document: https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D462638923
Question: Do you intent to do simulation with equal power for inner and outer?This scenario has been simulated and results are available in the following document: https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D4626389
Question: In case +10 0 if we increase the beam width for the Inner, is it not going to increase the interferences in the outer cell ?Most probably yes, but my feeling is that even with higher interference level, high capacity gains will be available. Increasing inner cell size will introduce high capacity gainsnetwork load.
Question: Have you simulate the SHO performances Inner/Outer cells ? How do you think would be the strategy to define the neighbors in the Inner Cell? Should we just define neighrelationships to the outer cell and to the cells within the same site (the other sectors)? Answer under verification
Question: Do we have a comparison between 6 s ectors vs. AAS vertical sectorization?Yes we have, results can be found here: https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D431631677
https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D431631677https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D431631677https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D431631677https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D431631677https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D431631677https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D462638923https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D462638923https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D462638923https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D462638923https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D462638923https://sharenet-ims.inside.nokiasiemensnetworks.com/Overview/D462638923