TechnoCom WiMAX Planning Support
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Transcript of TechnoCom WiMAX Planning Support
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2009 TechnoCom Corporation. All rights reserved.Confidential
RF Engineering forWiMax
Dr. Khaled Dessouky, [email protected]
Ray Brunet, Director RF [email protected] x139
mailto:[email protected]:[email protected]:[email protected]:[email protected] -
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Page 2Confidential 2009 TechnoCom Corporation. All rights reserved.
TechnoCom is a leading provider of
performance management andwireless design services and solutionsto North American wireless operators
Consistent revenue growth
Technology Fast 50
Founded in 1995
Experienced Management Team
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Page 3Confidential 2009 TechnoCom Corporation. All rights reserved.
Our Customers
http://www.att.com/http://www1.telecomsys.com/index.htmlhttp://www.issworldtraining.com/ISS_MEA/images/logo-TruePosition.gifhttp://images.google.com/imgres?imgurl=http://ww1.prweb.com/prfiles/2007/04/03/516571/logoproximetry.jpg&imgrefurl=http://www.prweb.com/releases/2007/04/prweb516571.htm&usg=__341vpA5m9EAsqSkteA99yZPkRYY=&h=759&w=4574&sz=477&hl=en&start=1&tbnid=i9kv1Gb6Jh7l6M:&tbnh=25&tbnw=150&prev=/images%3Fq%3DProximetry%26gbv%3D2%26hl%3Den%26sa%3DGhttp://images.google.com/imgres?imgurl=http://www.wgrd.com/LinkClick.aspx%3Flink%3Dimages%252Fcentennial%2Blogo700x1002.jpg%26tabid%3D3416%26mid%3D13023&imgrefurl=http://www.wgrd.com/TextTicketThursday/tabid/3416/Default.aspx&usg=__O116kJWlPdpizOlzyc59KVcaEPo=&h=100&w=700&sz=59&hl=en&start=18&tbnid=uHqdTSYe7p_stM:&tbnh=20&tbnw=140&prev=/images%3Fq%3DCentennial%2Bwireless%26gbv%3D2%26hl%3Denhttps://www.mycricket.com/ -
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Our Services
TechnoCom provides expert RF planning,optimization, test, and deployment management
services
Areas of Expertise
Network Planning Network Deployment Network QOS Location Systems/E911
System Design Trade-offs
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TechnoComs Team
TechnoComs professional services team is lead bytelecommunication systems and RF engineering experts withmany years of practical wireless experience
Wireless carrier and broadband wireless technology vendorexperience
Diverse industry experience including large and small wirelesscarriers, service providers, technology vendors, and stategovernments
Designed, developed and patented wireless location predictionsystem
Experienced in latest RF modeling tools and platforms for 3G/4Gwireless
TechnoComs Team offers a best of class, highly responsive,customer intimate professional engineering service that is bothvery competitive and cost effective
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Air Interface Experience
TechnoComs team possesses strong experience in a broadarray of wireless air interfaces Strong hands-on experience with traditional cellular air interfaces
CDMA2000, GSM, ANSI-136, AMPS, NAMPS
RF planning and system experience with 3G technologies WCDMA/UMTS
In depth knowledge of the PHY and MAC of WiFi-class technologies
802.11a/b and adaptation of 802.11a to 802.11p (for high speedvehicular applications)
In depth development and test experience of MMDS and LMDSsystems (802.16)
Hands-on WiMAX planning and design for large enterprise settings
In depth knowledge of mobile and fixed satellite systems andpropagation
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Experience with RF Design Tools
TechnoComs engineers have extensive experience with avariety of RF planning platforms and software tools and haveused them to design, test, optimize and maintain a variety of
networks RF prediction platforms:
CelPlan, PLANET EV, dB Planner, LocatePredict, GRANET
Field testing:
Comarco, IFR, Invex, TechnoComs LocationAssuranceManager (LAM), spectrum and network analyzers
Mapping/GIS:
MapInfo, ArcGIS, TechnoComs LocationAssuranceReporter (LAR), Google Earth
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Team Leadership
Dr. Khaled Dessouky
Co-founder of TechnoCom; 15 years of engineering managementexperience; expert on RF modeling and prediction; co-inventor ofpatented wireless location prediction system; co-inventor of 5 additionalwireless benchmarking related patents; pioneer in the development andadoption of 802.11p; co-inventor of 5 patent applications related to802.11p in mobile systems; expert on mobile and fixed satellite systems
(member NASA Space Technology Hall of Fame)
Ray Brunet
Ray Brunet, Director of RF Engineering at TechnoCom, has over 24years of wireless industry experience and over 18 years of experiencedirectly involved in the RF design and deployment of wireless systems.He has led design and deployment efforts of 802.16 LMDS, CDMA,NAMPS/AMPS, and aftermarket amplifier applications for GSM, TDMA,and CDMA networks.
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Network Planning:Initial Design
Design and network objectives identification andanalysis
Coverage, cost, capacity Spectrum re-use planning
Traffic demand (Morphology, traffic corridors, population,income levels)
Link budget analyses Coverage criteria, building penetration, fixed versus portable
Budgetary considerations (trade-offs)
Zoning considerations (impacts on deployment plan andmitigation)
Cell build-out options, capacity or coverage expansion
System growth considerations
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Sample WiMax Project(Downtown San Diego)
Challenging mixture of dense clutter of varying size and heightcombined with terrain variation
Requirement for solid penetration in a strong potential co-interferenceenvironment
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Detailed WiMax Prediction:e.g.: Modulation Schemes
Indoor/outdoor laptop modem versus fixed indoor terminal uplinkperformance in an urban downtown setting
USB data card versus CPE with 13 dBi directional antenna
Coverage tends to be uplink limited indoor
Laptop High Gain CPE
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Data Rate Prediction for DifferentUser Equipment
Delicate balance of offered service throughputs and interference created
Intelligent use of subcarrier permutation zones to protect more vulnerableusers
Laptop--downstream High Gain CPE--downstream
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Data Rate Planning for DifferentLink Requirements
Careful use of prediction models, scenario characteristics, and WiMAXfeatures to reflect link differences and meet their requirements
Laptop--downstream Laptop--upstream
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Page 14Confidential 2009 TechnoCom Corporation. All rights reserved.
Network Planning:Resource Deployment
Coverage Evaluation Area goals urban, suburban, rural, highway
Services goals Data services for fixed indoor, laptop
Frequency planning and interference analysis Frequency re-use, sub-channel allocation
Localized interference identification and mitigation
Coexistence Interference measurement, modeling andcoordination with adjacent markets
Detailed traffic analysis and capacity planning Individual site analysis and channel requirements
(subchannel utilization, zone and segment planning)
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Page 15Confidential 2009 TechnoCom Corporation. All rights reserved.
Example: WiMax Suburban DeploymentFreq., Segmentation & Bandwidth Planning
South San Diego Mixture of residential and light urban Average clutter heights approximately 12 meters Low customer density; high residential usage
Lighter site deployment to manage costs
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Interference Analysis and Planning
Careful segmentation reuse minimizes interference and improvescoverage in interference limited network
Allows for targeted growth in high capacity areas with segment andspectrum conservation
System with 30 MHz Total Bandwidth and Frequency Reuse of 1 (1/3/3)
Segmentation Scheme # 1 Segmentation Scheme # 2
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Page 17Confidential 2009 TechnoCom Corporation. All rights reserved.
Bandwidth Utilization Optimization
Indoor/Outdoor laptop model data service comparing the two freq re-use 1 segmentation schemes (3x and 6x) suiting different needs
Segmentation Scheme # 1 Segmentation Scheme # 2
Focused hot spot areas with very high data rates Broader coverage with lower but still high data rates
System with 30 MHz Total Bandwidth and Frequency Reuse of 1 (1/3/3)
Network Planning:
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Page 18Confidential 2009 TechnoCom Corporation. All rights reserved.
Network Planning:Campus Environment
Detailed propagationanalysis & model tuning Customized morphologies Quasi-microcell
environments Cost effectivebuilding/obstacle creationover campus areas
Drive testing and candidatesite evaluation
Validation of coverageperformance
Modeling refinement Future cell expansion and
interference/retuning/sub-
channel segmentation Planning adjacent systeminterference or co-existence with identical ordivergent air-interfaces
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Page 19Confidential 2009 TechnoCom Corporation. All rights reserved.
Network Deployment
Project planning and management From inception through conclusion and handover to customer
Provide support to customer as early as real estate acquisition
through negotiation and subsequent network roll out Identify suitable compromises and negotiation driven configurationchanges
Support zoning and permits process
Preliminary and detailed site surveys
Exact location, space for equipment, antennas, cable runs, powerfacilities, backhaul, etc.
BTS or subsystem installation, commissioning and testing Site integration and acceptance Market-wide drive test planning and execution
Perform cell design data management Maintain extensive database of cell configuration
Floor plans, cell locations and parameters, dimensioning, antennas, RFinterconnections, expansion, etc.
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Page 20Confidential 2009 TechnoCom Corporation. All rights reserved.
RF Network Optimization
Pre and post launch system performance analysisand parameter optimization
Maximize coverage, data capacity Verify indoor/outdoor coverage, modulation schemes
Antenna pattern adjustments and evaluations
Identify traffic related interference growth Refine coverage relating to power budget, traffic levels,
sub-channel segmentation, freq re-use
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Optimization ExamplePre-Launch
Careful adjustmentof electrical andmechanical tilts for
key sites 2 and 3rings out toimprove SNIR Balance with
sacrificing theirlocal coverage
and supportedservice
When needed,subcarrier
segmentationreadjustment
Underlying signal to noise plus interference ratio
Modulation scheme (and subsequent data rate)
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Page 22Confidential 2009 TechnoCom Corporation. All rights reserved.
Network QoS
TechnoCom deploys and managesteams which monitor, test, andevaluate market performance
Network performance analysis ofWiMax networks Received signal level Data throughput (average, max,
min)
Effects of Segmentation on datacapacity Effects of PermBase usage on
interference Performance statistics (mapped,
statistics by region, area, customboundary)
Guidance for areas ofimprovement based uponempirical results
Identification or verification of
possible hot spots areas ofhigh profile performance issues
Agilent E6474A
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Page 23Confidential 2009 TechnoCom Corporation. All rights reserved.
Regulatory Support
Regulatory (FAA/FCC)compliance RF Exposure reports and
documentation Interference analysis and
mitigation plans
International Coordination
Adjacent market coordination
Rule interpretation
E911 accuracy compliance
FCC License applications Experimental
Other
Permit renewal Expert testimony
Part101,Fixed
Microwave
Part90,PrivateLand
Mobile
Part 18, ISM
Equipment
Part25,Satellite
Part74
,Fixed&Mobile
Part25,Satellite
Part78,CableTV
Relay
Part101,Fixed
Microwave
Part78,CableTelevisionRelay
Part74,Fixed&Mobile
Part74,Fixed&Mobile
Part78,CableTelevisionRelay
1900
2500
2400
2300
2200
2100
2000
0
-10
-20
-30
-40
-50
-60
-70
Part22,PublicMobile
Part22,PublicMobile
Part101,FixedMicrowave
Part 21, DomesticPublic Fixed
Part 101, FixedMicrowave
Part 22, Fixed
Microwave
Part22,PublicMobile
Part25,Satellite
Part101,FixedMicrowave
Government Space
Research
Government Earth
Exploration Satellite
Government Fixed
Government Mobile
Part15,RFDevices
Part15,RFDevices
Part15,RFDevices
Part97,Amateur
Governm
entFixed,Mobile
See NextChart
Spectrum Occupation
SignalLevel(dBm)
Frequency (MHz)
Steps
Middle Roof
(11 above lower)
Lower
(Main)
Roof
Top
Roof
Steps
*
Lower
(Main)
Roof
*
*
**
*
*
21 ft
18 ft
40 ft
*
2A
2B
2C,D
2E
2F
2G2H
2J
Active Transmitting
Antenna
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Page 24Confidential 2009 TechnoCom Corporation. All rights reserved.
RF Design Tradeoff Studies
Capacity enhancements New sites vs.
increased sub-channelsegmentation
Frequency planexpansion Interference reduction
to increase availablemodulation scheme
Co-existence withadjacent networksand/or divergenttechnologies Coordination versus
additional sites 3.65 GHz licensed band
co-existenceevaluations of non-contention based air-interfaces in non-exclusive deployments
Coordination with FSS
Freq./band segmentation
versus max data rate trade
terrain profile