commercial deployment of adaptive antennas - nsma · commercial deployment of adaptive antennas ......
TRANSCRIPT
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ArrayComm Confidential
Commercial Deployment of Adaptive Antennas
Commercial Deployment of Adaptive Antennas
Spectrum Management 2003May 20-21, 2003
Presented byJoanne Wilson
ArrayComm, Inc
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ArrayComm Confidential2
OutlineOutline
• Overview of Adaptive Antenna (AA) technology• Benefits of AA for addressing coexistence issues • Application of AA to existing wireless systems
• PHS• WLL• CDMA• GSM
• Use of AA for Mobile Broadband Wireless Access (i-BURST)
• i-Burst Trials and commercial deployments• US• Korea• Australia
• Conclusion
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ArrayComm Confidential3
Spectral Efficiency BottleneckSpectral Efficiency Bottleneck
• Today’s principal spectral in-efficiency• omnidirectional radiation and reception
• Why?• tiny fraction of power used for communication• the rest: interference for co-channel users
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ArrayComm Confidential4
• Resulting in• Improved coverage and building penetration• Simplified installation• Increased user data rates• Greater capacity, reduced spectrum requirements
Adaptive Antenna FundamentalsAdaptive Antenna Fundamentals
• Combines signal processing hardware and software at base stations• Optimizes transmission and reception (“Personal Cell”)
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ArrayComm Confidential5
Adaptive Antenna FundamentalsAdaptive Antenna Fundamentals
• Systems comprising• multiple antenna elements (antenna arrays)• spatial & temporal processing• algorithms that vary the way in which those elements are
used as a function of operational scenario
• Providing• gain and interference mitigation• improved signal quality and spectral efficiency
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ArrayComm Confidential6
Adaptive Antenna ConceptAdaptive Antenna Concept
as1(t)+bs2(t) as1(t)-bs2(t)
+1+1 +1
-1
User 1,s1(t)ejωt
2as1(t) 2bs2(t)
User 2,s2(t)ejωt
• Users’ signals arrive with different relative phases and amplitudes at array
• Processing provides gain and interference mitigation
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ArrayComm Confidential7
Enhancing Signal QualityEnhancing Signal Quality
NoiseFloor
ActiveInterferenceMitigation
PassiveInterferenceMitigation
Original SignalOriginal Signal
OriginalSignal Level
OriginalInterferenceLevel
IntelliCellIntelliCell EnhancedEnhancedEnhancedSignal Level
(dB)(dB)
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ArrayComm Confidential8
Enhancing Signal QualityEnhancing Signal Quality
• Uplink Processing Gain
• Uplink Interference Rejection
• Downlink Combining Gain
• Downlink Interference Suppression
• Diversity Gain
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ArrayComm Confidential9
Adaptive Antennas Operational BenefitsAdaptive Antennas Operational Benefits
• Increased Capacity & Range• Increased Data Rates• Higher QoS• Self Organizing Systems• Enables Tighter Frequency Reuse• Increased Power Efficiency• Reduced System Wide Noise and Interference
Directly Reduce Costs and Increase Revenues
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ArrayComm Confidential10
Power EfficiencyPower Efficiency
ConventionalConventional1W
1W
1W
1W
1W
1W
1W
1W
1W
1W IntelliCellIntelliCell®®100 W
Same Theoretical Same Theoretical Received PowerReceived Power
Ten 1 Watt Ten 1 Watt TransmittersTransmitters
One 100 Watt transmitter has higher power consumption
than IntelliCell
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ArrayComm Confidential11
Spatial Channels: Supporting 2 Users on the Spatial Channels: Supporting 2 Users on the Same Channel in the Same CellSame Channel in the Same Cell
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ArrayComm Confidential12
OutlineOutline
• Overview of Adaptive Antenna (AA) technology• Benefits of AA for addressing coexistence issues• Application of AA to existing wireless systems
• PHS• WLL• CDMA• GSM
• Use of AA for Mobile Broadband Wireless Access (i-BURST)
• i-Burst Trials and commercial deployments• US• Korea• Australia
• Conclusion
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ArrayComm Confidential13
Side Benefits of AASide Benefits of AA
• AA are mainly used to improve system capacity and coverage
• There are, however, side benefits for coexistence issues due to:
• Energy focused in areas that wanted users are• Energy nulled in directions that unwanted users are• Users move, so does the orientation of the main beam,
thus interference to other systems happens only a fraction of the time
BS with AA Adjacent System(omni or sectored)
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ArrayComm Confidential14
AA Effects on CoexistenceAA Effects on Coexistence
• Standard bodies addressing coexistence have taken AA effects into account
• IEEE 802.16a, Standard for Fixed Broadband Wireless Access systems between 2-11 GHz
• Produced 802.16.2a, Recommended Practice for Coexistence of Point-to-Point and Point-to-Multipoint Fixed Broadband Wireless Access Systems between 2-11 GHz
• ITU-R Working Party 8F, IMT-2000 Systems and Beyond• Producing a report on interference mitigating techniques to
address the coexistence of IMT-2000 TDD and FDD systems in adjacent bands and same geographical areas in the frequency band 2500-2690 MHz.
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ArrayComm Confidential15
802.16.2a802.16.2a
• Simulations and analyses show that the safe coexistence distance between a point-to-multipoint CPE transmitter and a co-channel victim base station could be reduced by almost 75% if victim is using AA
D
ServiceBoundary
Victim
Interferer
R
D’
AABeam
β
φ
α
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ArrayComm Confidential16
ITU-R WP8FITU-R WP8F
• Simulations and analyses show that IMT-2000 TDD and FDD systems in adjacent bands can operate very close to each other in the same area with no or little guardbands if the TDD system uses AA
~75 m
-114
~150 m
~75 m
-114
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ArrayComm Confidential17
OutlineOutline
• Overview of Adaptive Antenna (AA) technology• Benefits of AA for addressing coexistence issues • Application of AA to existing wireless systems
• PHS• WLL• CDMA• GSM
• Use of AA for Mobile Broadband Wireless Access (i-BURST)
• i-Burst Trials and commercial deployments• US• Korea• Australia
• Conclusion
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ArrayComm Confidential18
Real World Performance ImprovementsReal World Performance Improvements
• Performance based upon• Commercial experience from over 130,000 systems • Extensive field trials in live carrier networks• Technology validation with OEMs
• Exhaustive spatial propagation database• Terabytes of data collected in real world propagation
environments• Simultaneous measurements of uplink and downlink channel
characteristics across 80 MHz and 190 MHz FDD split• Great flexibility in array size, geometry, air interface, user
morphology
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ArrayComm Confidential19
PHS - A highly used Wireless Internet Access System
PHS - A highly used Wireless Internet Access System
• PHS- Deployed in Japan in 1990’s
• 14 Million Subs
• Deployed outside Japan in late 1990’s
• Micro cell 1km range
• Has offered solid 64kbps data service for several years, Moving to 128kbps
• Significant % of network traffic is data
• In Taiwan, wireless data, thriving in Taipei market that has 80% GSM penetration
• Enabling technology is Smart Antennas.
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ArrayComm Confidential20
ArrayComm and PHSArrayComm and PHS
• Developed prototype hardware andcommercial software for BTSmodem
• Conducted extensive live networktrials to validate capacityimprovements
• Implemented software successiveupgrades to improve networkperformance
• Over 150 K IntelliCell base stationsin commercial service today
IntelliCell Base Station
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ArrayComm Confidential21
IntelliCell PHS Capacity ImprovementIntelliCell PHS Capacity Improvement
PHS base station w/o smart antenna
G2: Kyocera smartantenna base station
G3: IntelliCell adaptivesmart antenna base station
G3SC: Software upgrade to DDI’s network
0123456789
PHSBaseline
G2 G3 G3SCRel
ativ
e C
apac
ity In
crea
se
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ArrayComm Confidential22
Wireless Local Loop (WLL)Wireless Local Loop (WLL)
• Prototype hardware (reference design) for BTS and Terminals
• Commercial software for BTS, Terminals, OMC, Network Interface
• First commercial system in the world to support a frequency reuse of less than 1
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ArrayComm Confidential23
WLLWLL
• Licensed to Kyocera in 1997
• Limited sales in Middle East and Asia through 2001
• May 2002 - major sale to TOT, Thailand – > 200 Base Stations and 200,000 subscribers
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ArrayComm Confidential24
UMTS (3G) – WCDMA UMTS (3G) – WCDMA
• Licensed to Marconi in 2001
• Development of First Phase completed in 4Q02
• Large-scale FDD spatial-propagation measurement study demonstrating up to 6X capacity and 3X coverage
• Extensive 3GPP based link and network level simulations demonstrate similar improvements
• Fully adaptive phase to be started in 2003
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ArrayComm Confidential25
IntelliCell Downlink Performance ImprovementsIntelliCell Downlink Performance Improvementsfor WCDMAfor WCDMA
3.2x3.2x1.9x1.9x3 sector, 8 antenna per sector3 sector, 8 antenna per sector2.2x2.2x1.7x1.7x3 sector, 4 antenna per sector3 sector, 4 antenna per sector
Cell AreaCell Area7.4x7.4x3.1x3.1x3 sector, 8 antenna per sector3 sector, 8 antenna per sector3.7x3.7x2.7x2.7x3 sector, 4 antenna per sector3 sector, 4 antenna per sector
1.0x1.0x1.0x1.0xBaseline: 3 sector, 1 Tx antenna Baseline: 3 sector, 1 Tx antenna per sector, non IntelliCellper sector, non IntelliCell
CapacityCapacity
Sub Sub UrbanUrban
Dense Dense UrbanUrban
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ArrayComm Confidential26
Example Initial Deployment Example Initial Deployment ––WCDMA in a Typical Metro AreaWCDMA in a Typical Metro Area
Coverage Area 5000 sq. km.- Dense Urban: 700 sq. km.- Suburban: 4300 sq. km.
Voice Subscribers (Initial): 200KData Subscribers (Initial): 140KPeak Hour Voice Traffic/Sub. 50mEPeak Hour Data Usage/Sub 800 k BytesTraffic Profile
- Dense Urban: 40%- Suburban: 60%
Baseline (w/o IntelliCell): 3 sector, 2Rx/1TxIntelliCell 3 sector, 4Tx/4RxSpectrum Allocation 15 MHz + 15 MHz
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ArrayComm Confidential27
Example Initial Deployment Example Initial Deployment ––WCDMA in a Typical Metro AreaWCDMA in a Typical Metro Area
0%10%20%30%40%50%60%70%80%90%
100%
Cell Sites CapEx
Baseline IntelliCell
50% reduction in number of sites25% reduction in CapEx50% reduction in time to deploy
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ArrayComm Confidential28
GSMGSM
• GSM (DCS-1800, PCS-1900) technology validation (prototypes)
• Large-scale FDD spatial-propagation measurement study
• GSM/GPRS/EDGE BTS development program currently in process with AirNet Communications; ArrayComm contributing systems expertise and adaptive antenna software
• Demonstrated 30 dB uplink interference rejection, 5 dB gain in delivered power, and 17 dB less interference
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ArrayComm Confidential29
GSMGSM• Licensed to AirNet in 2000
• Demo for Major GSM Carriers in August 2002
AIRNET ANNOUNCES SUCCESSFUL
COMPLETION OF ADAPTIVE ARRAY
FIELD TRIAL -SuperCapacity
AdaptaCell Base Station Is Revolutionary and
Unparalleled in Performance
For Immediate ReleaseAugust 20, 2002
“In addition, this technology is far more cost-effective than any other solution previously adopted because it reduces by up to six times the number of cell sites needed for high speed data applications. We have now successfully demonstrated to the world a solution that many thought could not be accomplished.” Glenn Ehley CEO
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ArrayComm Confidential30
ComparisonComparison
• Adaptive Antennas can always help.
• To maximize benefits, adaptive antennas must be integratedin protocol design
Application Capacity Increase
WLL, TDD 20xhooks
PHS, TDD 5-9xno hooks
High Mobility 2.5, 3G 2-6x
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ArrayComm Confidential31
OutlineOutline
• Overview of Adaptive Antenna (AA) technology• Benefits of AA for addressing coexistence issues • Application of AA to existing wireless systems
• PHS• WLL• CDMA• GSM
• Use of AA for Mobile Broadband Wireless Access (i-BURST)
• i-Burst Trials and commercial deployments• US• Korea• Australia
• Conclusion
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ArrayComm Confidential32
i-BURST Mobile Broadband Internet Accessi-BURST Mobile Broadband Internet Access
Internet
• High speed -- 1Mbps per user
• Mobile or fixed use• Fixed: Alternative to DSL or
Cable in the home or small business
• Mobile: Untethered, freedom to move
• Always on -- fast and easy access
• Standard IP-enabled devices and applications
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ArrayComm Confidential33
i-BURST – A New Consumer & Business Lifestyle
i-BURST – A New Consumer & Business Lifestyle
• Enable a new consumer and business lifestyle by extending the Internet through an open platform that delivers always-on connectivity, freedom to move and broadband content.
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ArrayComm Confidential34
SatelliteSatellite
BluetoothBluetooth
LMDSLMDS
2.5G2.5G
RicochetRicochet
2G2G
W-LANW-LAN
i-BURSTi-BURST
3G3G
Bro
adba
ndN
arro
wba
nd
Fixed Local Area Wide Area
Typi
cal U
ser D
ata
Rat
e
i-BURST Positioningi-BURST Positioning
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ArrayComm Confidential35
Spectral EfficiencySpectral Efficiency
0.00.51.01.52.02.53.03.54.0
PHS
IS-9
5
Cdm
a200
0
GSM
IS-9
5 H
DR
Inte
lliC
ell
PHS
Inte
lliC
ell
GSM
Inte
lliC
ell
WC
DM
AIn
telli
Cel
lW
LL
i-Bur
st
(Bits
/ Se
cond
/ H
z)(B
its /
Seco
nd /
Hz)
Non-Smart Antenna Systems
Commercial IntelliCell Systems
Future IntelliCell Systems
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ArrayComm Confidential36
40 Simultaneous 1 Mbps Users
3G i-BURST
3G
10 MHzi-BURST
10 MHz
7 Simultaneous 144 kbps Users
i-BURST vs. 3Gi-BURST vs. 3G
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ArrayComm Confidential37
How does i-BURST increase spectral efficiency?
How does i-BURST increase spectral efficiency?
• Adaptive antenna array technology: place RF energy where it needs to be
• Spatial channels: several users simultaneously use the same RF resource within the same cell
• Intra-cell frequency reuse: reuse < 1
• TDD technology: with uplink and downlink transmission in the same band
• spatial processing algorithms are more effective as they take advantage of channel reciprocity
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ArrayComm Confidential38
i-BURST delivers performance to many simultaneous users
i-BURST delivers performance to many simultaneous users
Source: ArrayComm analysis, QUALCOMMNumber of Subscribers per Cell
Dat
a R
ate
per U
ser (
Mbp
s)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0 500 1000 1500 2000 2500 3000
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0 500 1000 1500 2000 2500 3000
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0 500 1000 1500 2000 2500 3000
Per-user data rate trends based on total number of subscribers
i-BURST
1xEv-DO
3G
GPRS
Assumes 30X oversubscription, 10MHz total spectrum
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ArrayComm Confidential39
Some ComparisonsSome Comparisons
40
System Spectral Efficiency
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
IS-9
5 A
IS-9
5B
IS-9
5C
Cdm
a200
0
IS-9
5 H
DR
GSM
GSM
HSC
SD PHS
Inte
lliCel
l®W
LL
i-Bur
st
Spec
tral
Effi
cien
cy in
bits
/sec
/Hz/
cell
250
19 18 12 1
GPRS CDMA2000WCDMA 1xEV-DO i-BURST
Network EfficiencyNumber of cells to deliver the
same information density, Mbps per KM2
0.16 2.1 2.2 3.4
GPRS CDMA2000 WCDMA 1xEV-DO i-BURST
Cell CapacityThroughput in 10 MHz (Mbps)
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ArrayComm Confidential40
OutlineOutline
• Overview of Adaptive Antenna (AA) technology• Benefits of AA for addressing coexistence issues • Application of AA to existing wireless systems
• PHS• WLL• CDMA• GSM
• Use of AA for Mobile Broadband Wireless Access (i-BURST)
• i-Burst Trials and commercial deployments• US• Korea• Australia
• Conclusion
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ArrayComm Confidential41
TDD spectrum is available worldwideTDD spectrum is available worldwide
All have auctioned 1.9 GHz 3G TDD to multiple operators
Currently lying fallow; early deployments of MBWA solutions may influence standards policy
Austria, Belgium, France, Germany, Italy, Netherlands, Spain, Sweden, Switzerland, UK
Europe
PHS reserve spectrumChina, Japan, Taiwan
Spectrum owned by ArrayComm-led consortium
Australia
2.3 GHz decision due this summerKoreaAsia
Fixed wireless deployments in WCS and2.5 GHz could be replaced;1.9 GHz 3G TDD a possibility in European model
Argentina, Brazil, Canada, Mexico
1670 MHz at auction, 700 MHz, WCS and MMDS are possibilities
United StatesAmericas
Spectrum StatusCountriesRegion
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ArrayComm Confidential42
KoreaKorea
• Jan. 2002, Hanaro telecom, Inc.
• Korea Seoul city south area JW Marriott hotel and this area
• Contents of the demonstration
• i-BURST operation in the meeting room • 1Mbps Download demonstration with FTP • transmission and Video streaming
• Driving test• i-BURST operation in a BUS running 30-40km/h• Comparison between cdma2000-1x, Wireless
LAN, and i-BURST• Video streaming• FTP
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ArrayComm Confidential43
KoreaKorea
ii--BURSTBURST BSBSFor Outside demoFor Outside demo
ServerServer
ii--BURST BURST BSBSFor Inside demoFor Inside demo
300kbpsVideo streamingMusic video clip
500kbpsVideo download&displayMovie
FTP transmission
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ArrayComm Confidential44
Australia initiative demonstrating successAustralia initiative demonstrating success
• Coalition engaged
• Pre-commercial trials in progress in Sydney, yielding positive feedback
• Live with customers at end of year
Retail
Wholesale
Integ’n, Infra.
Equipment
Tech, $
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ArrayComm Confidential45
HistoryHistory
• Spectrum purchase• April 2001 auction, 1905-1910• October 2002 license commences.
• Personal Broadband Australia• Formerly CKW Wireless
• Consortium formed• 2Q2002• Vodafone, OzEmail, TCI, Crown & Castle, Commworks,
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ArrayComm Confidential46
The PlanThe Plan
• 2 Base stations, 3-10 User terminals Now
• Clone our Alpha/Demo system
• November 15th kick-off demonstration in Oz
• 2 More BS, 15 more UT in December
• “Friendly Users” trial as soon as practical
• More features to Oz 2003
• Commercial BS in 2003
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ArrayComm Confidential47
Consortium Consortium
• Market profile and credibility
• Network infrastructure
• Distribution, Branding and Customer Service
• Network construction and project management
• Access to existing customer base
• Ready, “plug & play”, network deployment
• A$5 million contribution to Phase I
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ArrayComm Confidential48
Consortium ParticipantsConsortium Participants
NOC
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ArrayComm Confidential49
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ArrayComm Confidential50
OutlineOutline
• Overview of Adaptive Antenna (AA) technology• Benefits of AA for addressing coexistence issues • Application of AA to existing wireless systems
• PHS• WLL• CDMA• GSM
• Use of AA for Mobile Broadband Wireless Access (i-BURST)
• i-Burst Trials and commercial deployments• US• Korea• Australia
• Conclusion
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ArrayComm Confidential51
ConclusionConclusion
• AAs greatly enhance spectrally efficiency, increase system capacity, range and supportable data rates
• Additionally, by reducing unwanted emissions, AAsimprove the ability of adjacent band systems to coexist in the same geographic area
• AAs are commercially proven with >130, 000 deployed base stations in PHS and WLL networks
• AAs are being integrated into new 2.5 and 3G base stations to improve their capacity and coverage
• AAs are an enabling technology for future mobile broadband wireless access systems, with trials and commercial deployments currently underway.
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ArrayComm Confidential52
End of PresentationEnd of Presentation
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ArrayComm Confidential53
BackupBackup
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ArrayComm Confidential54
Air Interface Carrier BW Peak User Data Average Carrier Efficiency CommentsRate (kbps) Throughput (kbps) b/s/Hz/cell
Without Smart Antennas
IS95A 1.25 MHz 14.4 100 0.08 Source: Viterbi
IS95B 1.25 MHz 115 125 0.1 Source: Viterbi
IS95C 1.25 MHz 144 200 0.16 Source: Viterbi
cdma2000 5 MHz 384 800-1000 0.16-0.20 Source: Viterbi
95HDR Forward 1.25 MHz 2456 600 0.48 Source: Viterbi
“No fundamental change
over standard CDMA to
achieve this number”
GSM 200 kHz 13.3 15.2 (13.3*8/7) 0.08 reuse = 7
GSM(HSCSD) 200 kHz 57.6 15.20.08 ”
PHS 300 kHz 32 12.80.04 effective reuse = 20
With IntelliCell™
PHS 300 kHz 32 32 (32*8/4) 0.21 effective reuse = 4
ArrayComm WL 300 kHz 128 640 (128*2*2.5) 2.1 reuse = 1/2.5
i-BURST 625 kHz 1153 2500 4 reuse = 1/2
Comparative Spectral EfficienciesComparative Spectral Efficiencies
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ArrayComm Confidential55
“Other” Smart Antennas“Other” Smart Antennas
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ArrayComm Confidential
PowerComparator
Demodulator
Antennas
Selection DiversitySelection Diversity
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ArrayComm Confidential
PowerComparator
Demodulator
Antenna Elements
StaticCombiningNetwork #1
StaticCombiningNetwork #K
Switched Beam SystemSwitched Beam System
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ArrayComm Confidential58
Switched Beam Smart AntennasSwitched Beam Smart Antennas
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ArrayComm Confidential59
Cell Sector SculptingCell Sector Sculpting
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ArrayComm Confidential60
Fully Adaptive Smart AntennasFully Adaptive Smart Antennas
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ArrayComm Confidential61
Fully Adaptive Smart AntennasFully Adaptive Smart Antennas