O-MC Signal Research, Inc. A Wireless Research Design & Development Company March 24, 2003.

O-MC Signal Research, Inc.

A Wireless Research Design & Development Company

March 24, 2003

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.

WIRELESS TECHNICAL FOCUS

• In-Building Design

• Wireless Network Design

• Wireless Network Optimization

• Frequency Planning

• Site Audits

• Zoning Hearings

• Site Maintenance

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

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

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.

TECHNICAL EXPERIENCE(Wireless Standards)

• GSM

• GPRS

• CDMA 2000

• W-CDMA

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

EXPERIENCE (EQUIPMENT)

• Nortel BTSs• Ericsson BTSs• Siemen’s BTSs• Lucent BTSs• Motorola BTSs

• Low Noise Amplifiers - Theory and Design

• Antenna Design Features

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

ADDITIONAL SERVICES OFFERED

• Rooftop Designs

• Monopole Designs

• Microcell design• RF frequency planning and optimization of

bridges• Site Expansion

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

SITE SURVEY AND REPAIR PROGRAM

• OBJECTIVE: Improve network performance

– Capacity– Coverage– High-speed data enhancements– Frequency verification– Optimization– Interference analysis

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

In-Building

DESIGN AND DEVELOPMENT

In-Building Venues

• Office building

• Apartment building

• Hotels and Conference Centers

• Tunnels

• Subway stations

• Shopping Centers and Malls

• Multiple Building Campus Settings

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?

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?

Competing In-Building Design Technologies

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

RECOMMENDED APPROACH

For 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.

All Passive In-Building Justification

– Increase MTBF

– Reduces maintenance

– Reduced complexity

– Reduced parts count

– Reduced cost

TECHNICAL AND DEVELOPMENTAL DETAILS

FOR IN-BUILDING DESIGN

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

DESIGN CONCEPTS (CON’T)

• 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.

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

Examples of Coverage Area• PL (dB) Radius (ft) Area (SQ FT) No of 10’x10’ 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’

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

•

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

PROPAGATION LOSS

• Place propagation path loss calculations here

OTHER SERVICES