Cellular and Wireless Network Experts

Barr Group's cellular and wireless network expert witness team provides consulting, code review, reverse engineering, patent portfolio analysis, expert witness reports, and testimony for litigation involving telecommunications technologies, standards, and protocols. Our experts have hands-on experience designing telecom/datacom equipment and the composure and credentials for trial.

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Wired and Wireless Network Equipment

Barr Group is in the business of designing reliable and secure computers and we have software and electrical engineers with a deep understanding of datacom and telecom products and protocols, such as:

  • Cellular GSM and CDMA protocols, including 3G/4G/5G and LTE
  • Cellular handset design, including smartphones and mobile phones
  • Cellular base station equipment and network design
  • Wireless networks and standards from WiFi 802.11 a/b/g/n to WiMax
  • Wired and wireless access points, switches, routers, and repeaters
  • DOCSIS cable modems and "triple-play" broadband access devices
  • All seven layers of the OSI (Open Systems Interconnection) model
  • TCP/IP Internet protocol suite and middleware libraries/stacks
  • Data center infrastructure design and operations
  • Fiber-optic communications and equipment
  • LANs, including IEEE 802.3 Ethernet, Industrial Ethernet, and 1GE/10GE
  • Bluetooth, Zigbee, and other personal area networks (PAN)
  • GPS, E-911 (Emergency 911), and geolocation technologies
  • Satellite telemetry and ground-to-satellite communications
  • Switched telephone networks (PSTN), PBXes, and Signalling System No. 7

Barr Group's cellular and wireless network experts are well acquainted with all of the mobile communications technologies, standards, and protocols as well as the operating systems and programming languages (such as C, C++, and assembly) used to develop datacom and telecom products. We are equally comfortable reviewing chip designs in Verilog and VHDL and, of course, electronic schematics.

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Expert Witness Services

Barr Group's cellular and wireless network experts support plaintiffs and defendants in litigation in U.S. District Courts, at the International Trade Commission (ITC), and before the Patent Trial and Appeal Board (PTAB). Our services include:

  • Technical assistance with drafting of discovery requests
  • Software source code review and analysis
  • Source code comparisons for copyright and trade secret theft
  • Prior art review for patent invalidity
  • Intellectual property portfolio review and analysis
  • Reverse engineering, including of electronics and binary code
  • Data center and network infrastructure audits
  • Analysis of network infrastructure vs industry best practices
  • Root cause analysis for system failures
  • Network traffic analysis, including WireShark sniffing
  • Review of cyber breaches in light of security measures
  • Expert reports, declarations, and witness statements
  • Testimony at deposition, oral hearings, and trials

Barr Group has a demonstrated ability to quickly activate one or more code reviewers to match the size, scope, and complexity of any project.

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The following is a representative subset of Barr Group's experts who have experience designing and/or testifying about these technologies:

Full Title: 
Experts in Wireless and Cellular Networks

Battery Design & Testing Expert Profile

Experienced electrochemist, consultant, and adjunct professor of materials science and engineering. Has extensive experience in research and industry for battery electronics, including new product development, manufacturing and testing, applications engineering, as well as battery system design.

Battery Failure Electrochemistry Expert Profile

Chemist and consultant with four decades of experience in the area of electrochemical energy related devices, including batteries, capacitors, fuel cells, electrolysis and corrosion. Has significant expertise in laptop, cell phone, and e-cigarette batteries, electric vehicles, and other applications of electrochemical energy storage. Expert working knowledge of electronics and laboratory instrumentation as applied to the testing of batteries, chargers, and battery-powered devices.

Satellite & Cellular Base Station Expert Profile

Independent engineering consultant specializing in wireless cellular mobile technology and real-time embedded software development.

Cellular Wireless Air Interface Expert Profile

Professor of electrical engineering and computer science with decades of R&D experience in communications networks and wireless signal detection and estimation.

Deep Learning & A.I. Systems Expert Profile

Former professor of software engineering with over 25 years of hands-on experience in speech recognition, artificial intelligence / machine learning, computer vision, data centers, and blockchain.

Speech-Based Interface & RFID Expert Profile

Consultant and former professor of computer science with decades of hands-on experience in speech recognition, IVR, RFID, streaming multimedia, and data encryption.

Speech & Voice Recognition Expert Profile

Professor of computer science with over two decades of experience at the forefront of the analysis and processing of electronic documents and document images as well as expertise in speech processing and voice input.

Haptic Input & Virtual Reality Expert Profile

Professor of engineering with decades of experience developing novel technologies and expertise in virtual reality, streaming multimedia, image processing and computer vision, artificial intelligence, and robotics.

Aircraft Avionics Software Expert Profile

FAA-certified Designated Engineering Representative (DER), flight instructor, and commercial pilot and former director of engineering and chief software architect for next generation cockpit flight displays.

Drone & UAV Navigation Expert Profile

USAF Academy researcher in image processing and GPS-denied navigation with decades of experience in control systems design and DSP algorithms for applications including drone unmanned aerial vehicles (UAVs). 


Expert W425N

A leader in the field of connected vehicle technologies with three decades of focus on accessing...

Expert S416N

Electronics and computer science expert with more than twenty-five years of hands-on experience...

Expert M242N

Professor of electrical and computer engineering and robotics with more than a decade of...

Expert Z261T

Chemist and consultant with four decades of experience in the area of electrochemical energy...

Expert V534K

Experienced electrochemist, consultant, and adjunct professor of materials science and...

Expert H620K

Technology consultant with more than thirty years of experience in battery, materials, and...

Expert J525N

Experienced computer engineer and corporate information technology leader with a successful...

Expert Q240L

Distinguished electrical engineer, technology executive and broadband industry pioneer and...

Expert M500N

Professor of electrical engineering and computer science with decades of R&D experience in...

Expert J520S

Independent engineering consultant in the design of both electronics and software with a formal...


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