OMC Signal Research, Inc.

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O-MC Signal Research, Inc.

• A Wireless Research Design Development
  Company
• March 24, 2003

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BACKGROUNDO-MC Signal Research, Inc.

• Founded in 1988.
• Headquarters in Bloomfield, New Jersey
• Original business plan focused on the defense
  industry.
• Navy Small Business Innovation Research contract
  lead to a patent on quantum cryptography. This
  business is currently being pursued.
• Wireless program initiated in 1996 with contract
  from Omnipoint.
• Our current business plan has two major areas of
  focus
• Wireless design and development projects.
• Quantum cryptography.

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WIRELESS TECHNICAL FOCUS

• In-Building Design
• Wireless Network Design
• Wireless Network Optimization
• Frequency Planning
• Site Audits
• Zoning Hearings
• Site Maintenance

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WHY ADD WIRELESS IN-BUILDING COVERAGE

• QUALITY WIRELESS COVERAGE FOR TENANTS
• voice
• data
• SAFETY
• PHONE COVERAGE IN UNDERGROUND GARAGES
• PHONE COVERAGE IN PARKING LOTS
• PHONE COVERAGE FOR EMERGENCIES
• PHONE COVERAGE FOR ELDERLY OR HANDICAPPED

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WHAT WE CAN OFFER To YOUR COMPANY

• Well trained senior engineers with extensive
  wireless experience in network design,
  optimization, frequency planning, and maintenance
• Task Specific Project Managers
• Turn-key project managers

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EXPERIENCED ENGINEERING STAFF

• Currently we have twenty senior engineers with
  extensive GSM design and optimization experience
  available for near-term assignments.
• Additional engineers can be made available for
  programs that allow for longer-term planning.
• Other standards (CDMA, iDEN) are familiar to our
  staff.
• This engineering staff was instrumental with the
  original GSM build-out of the New York Major
  Trading Area (NYMTA) under Omnipoint.
• Our staff is thoroughly familiar with several
  software design tools as well as MapInfo.

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TECHNICAL EXPERIENCE(Wireless Standards)

• GSM
• GPRS
• CDMA 2000
• W-CDMA

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EXPERIENCE (GEOGRAPHICAL)

• Entire NYMTA (New York Major Trading Area)
• Canyons of Manhattan
• Suburb On-Street Designs
• Hills and forested rural areas
• Seashore and over-water propagation
• Rural Interstate Highway designs

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EXPERIENCE (EQUIPMENT)

• Nortel BTSs
• Ericsson BTSs
• Siemens BTSs
• Lucent BTSs
• Motorola BTSs

• Low Noise Amplifiers - Theory and Design
• Antenna Design Features

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BUSINESS OBJECTIVES

• OUR BUSINESS MODEL IS TARGETED FOR O-MC SIGNAL
  RESEARCH TO BECOME A LEADER IN IN-BUILDING DESIGN
  AND DEVELOPMENT BY WORKING WITH CONTRACTORS,
  REALTORS, PROPERTY OWNERS, AND WIRELESS CARRIERS

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ADDITIONAL SERVICES OFFERED

• Rooftop Designs
• Monopole Designs
• Microcell design
• RF frequency planning and optimization of bridges
• Site Expansion

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SITE SURVEY ACTIVITIES

• Physical Inventory
• Site configuration documented with As-Built
  Drawings
• Pictures
• Emergency backup power
• BTS performance testing
• Grounding
• Antenna alignments
• Cable sweeps
• Interference analysis
• RF power output testing
• Visual workmanship inspections
• Inspect and repair as needed

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SITE SURVEY AND REPAIR PROGRAM

• OBJECTIVE Improve network performance
• Capacity
• Coverage
• High-speed data enhancements
• Frequency verification
• Optimization
• Interference analysis

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TESTING SERVICES

• In-building signal level evaluations
• In-Fill site testing
• Optimization
• Public safety radio coverage testing
• Interference data collection
• Special test equipment design and testing

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In-Building

• DESIGN AND DEVELOPMENT

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In-Building Venues

• Office building
• Apartment building
• Hotels and Conference Centers
• Tunnels
• Subway stations
• Shopping Centers and Malls
• Multiple Building Campus Settings

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In-Building Questions to be Asked

• What type of coverage is desired?
• A single carrier?
• A selection of carriers?
• All carriers (cellular, PCS, Paging)?
• How many users need to be serviced?
• Over-air or Dedicated Base Station
• Who pays for infrastructure installation?
• Property owner?
• Carriers?
• Neutral host?

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EQUIPMENT DECISIONS

• What is in-building requirement driver?
• Voice?
• Data?
• What equipment best serves this particular
  customer?
• Repeaters/Bi-Directional Amplifiers?
• Microcells?
• Full sized Base Station?

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Competing In-Building Design Technologies

• Distributed Antenna in-building design
• Leaky coax tunnel and subway design
• Fiber optic cable in-building design

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RECOMMENDED APPROACHFor Small to Medium Venues

• Passive coaxial cable and Distributed Antenna
• LNAs will be considered for larger area projects
  or where up-link link imbalance exists
• Fiber Optic System will be used for multiple
  building or campus-like design requirements.
  Large airports are a good example of a proper
  venue for a fiber optic in-building
  infrastructure.

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All Passive In-Building Justification

• Increase MTBF
• Reduces maintenance
• Reduced complexity
• Reduced parts count
• Reduced cost

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TECHNICAL AND DEVELOPMENTAL DETAILS FOR
IN-BUILDING DESIGN
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DESIGN CONCEPT

• NSU at lower floor or rooftop
• Separate Tx Rx paths
• Antennas on every second or third floor
• Four antenna per floor
• Each antenna covers 16,384 SQ FT
• 20 dB directional couplers will be used
• 1/2 or 7/8 coaxial cables will be used

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DESIGN CONCEPTS (CONT)

• Place antennas near all elevator shafts
• Point antennas away from outer walls
• Assume 15 dB attenuation for floors
• Build-out should start at the top of the
  building. Results to be tested using CW test
  equipment after each floor is completed.

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DESIGN CONCEPT RULES

• No power handling limitations to carriers
• Assume a balanced network for GSM with mobile at
  30 dBm BTS at 35 dBm/channel
• Using 20 dB directional couplers the output to
  antenna will be at - 4 dBm
• Each antenna will cover as much as
  205,887 SQ FT assuming a 9 dB per octave loss
  factor

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Examples of Coverage Area

• PL (dB) Radius (ft) Area (SQ FT) No of 10x10
  Offices Dimensions
• 105 298 355,216/1,420,864 3552/14209 1192 x
  1192
• 103 256 262144/1048576 2621/10486 1024 x 1024
• 94 128 65536/262144 655/2621 512 x 512
• 85 64 16384/65536 164/655 256 x 256
• 76 32 4096/16384 41/164 128 x 128

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LINK BUDGETS

• DOWNLINK
• Power Output 35 dBm
• Antenna Gain 3 dB
• Path Loss (NSU) - 10 dB
• Path Loss (SDU) - 20 dB
• Path Loss (Cables) - 2 dB
• Path Loss (4-way Splitter) - 6 dB
• Receiver Sensitivity -104 dBm
• PATH LOSS -104 dB

• UPLINK
• Power Output 30 dBm
• Antenna Gain 3 dB
• Path Loss (NSU) -10 dB
• Path Loss (SDU) - 20 dB
• Path Loss (Cables) - 2 dB
• Path Loss (4-Way Combiner) - 6 dB
• Receiver Sensitivity - 110 dBm
• PATH LOSS - 105 dB

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Path Loss as a Function of Distance from Antenna

• Area covered by each antenna
• A pi
• A1 3.1416 (256) 205,887 sq ft
• A2 3.1416 (128) 51,472 sq ft
• A3 3.1416 (64) 3,217 sq ft

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PROPAGATION LOSS

• Place propagation path loss calculations here

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OTHER SERVICES
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