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 communications 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:

Telecommunications

ASIC FPGA SoC Chip Design Expert Profile

Electrical engineer and computer scientist with extensive technical skills in both digital electronics and software and a track record of delivering successful silicon and system designs. Has designed and verified a variety of semiconductors including System-on-Chips (SoC), ASICs, and FPGAs. Specialized technical expertise includes memory controllers (SDRAM, DDR), high-speed communication interfaces (PCIe, SATA, USB), wireless devices, and other processor peripherals.

DOCSIS Cable Modem Expert Profile

Distinguished electrical engineer, technology executive and broadband industry pioneer and leader. Named inventor of nearly one hundred U.S. patents in broadband and wireless data communications, mesh networking, digital video technologies and mobile devices. Extensive experience in DOCSIS cable modem communications including numerous product firsts and as well as key standards development in the delivery of triple-play voice, video, and high-speed Internet.

Internet Protocols and IoT Expert Profile

Software and systems engineer with several decades of hands-on experience in the design and implementation of complex embedded systems based on Linux, Windows, and real-time operating systems. Specialist in Internetconnected products such as consumer electronics and IoT devices using WiFi 802.11, GSM/LTE cellular, and other wireless and wired protocols. Also has experience with FPGAs and implementing M2M communications through the use of Microsoft .NET-based web services.

Autonomous Vehicle Navigation Expert Profile

Professor of electrical and computer engineering and robotics with more than a decade of industry experience developing embedded systems for guidance, communications, and data processing for spaceborne and terrestrial applications. Teaches classes and performs research in the areas of navigation, communications, and design of computer systems. Head of a robotics research laboratory that focuses on the integration of computer, communications, and navigation technologies for autonomous robot applications. Has specialized expertise in civilian and military navigation

Smart Grid Electrical Power Expert Profile

Professor of electrical and computer engineering with significant industry experience in telecom, aerospace/defense, security, and healthcare application domains. Director of a university program that supports NASA’s Johnson Space Center and co-director of a connected infrastructure program that prototypes smart grid, smart energy, smart transportation, and other smart city projects. Research relates to those and other topics that touch on embedded computing systems and communication and networking protocols. Has held executive and senior engineering positions

Mechanical Electrical Software Expert Profile

Mechanical engineer with hands-on experience in all phases of product engineering, including system architecture, system engineering, system modeling, system integration, mechanical and electrical design, as well as software and firmware development and testing. Areas of deep technical specialization include electronics design and simulation, digital signal processing (DSP), and software development in a range of programming languages.

Software Process Improvement Expert Profile

Former adjunct professor of computer science and university researcher turned industry consultant and trainer focused on software process improvement and product design. Subject matter expert in software engineering, software quality, data analytics, e-commerce, wireless communications, networking, embedded systems, web technologies, and user interfaces.

Short-Range Wireless Protocols Expert Profile

Professor emeritus of computer science at one university and an associate professor of the same at another. Also a software consultant and a leader with experience in every phase of software product development and management. Visionary, thinker, founder, writer, speaker and mentor experienced in startups, mid-size, and large companies. As an early member and technical leader of an international industry consortium, helped to establish and standardize line-of-sight communication protocols between handheld mobile devices.

Biotech and Pharma Database Expert Profile

Experienced computer engineer and corporate information technology leader with a successful track record in the biotech, pharmaceutical, medical device, and other industries. Specialized expertise in software development and testing in a variety of languages and with a range of database platforms and languages. Experienced trainer and engaging communicator.

Cloud Data Center Expert Profile

A licensed professional engineer in the State of Arizona and in Manitoba, Canada and an engineer with over twenty years of experience in the field of data center design and management. Has worked as an electrical, network, and data center infrastructure engineer, as well as a program and project manager in related areas. As an independent consultant, he has provided data center design and operations consulting or training to clients on six continents and 28 countries.

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Expert M242N

Professor of electrical and computer engineering and robotics with more

Expert H620K

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

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 J520S

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

Expert I220K

A licensed professional engineer in the State of Arizona and in Manitoba, Canada and an engineer...

Expert K642K

Professor of electrical engineering with extensive experience as a technology industry...

Expert S530O

Electrical engineer with extensive electronics and software product development experience...

Expert N120K

Electrical engineer and computer scientist with extensive technical skills in

Expert C656T

Computer scientist and executive with experience managing development of a range of computer...

Expert B620S

<p>Computer engineer with over fifteen years of hands-on experience in all phases of...

Expert L555N

Professor of electrical engineering and an award-winning innovator in the areas of wireless...

Expert S536R

Experienced developer of high-reliability business computing systems and large-scale software...

Expert G650N

Internationally renowned cryptographer and security technologist with two decades of industry...

Expert G615N

Electrical engineer and independent consultant specializing in the design of microcontroller-...

Expert G341F

Electrical engineer with two decades of experience in the design of embedded systems with a...

Expert M320K

Software and systems engineer with several decades of hands-on experience

Expert M260R

Mechanical engineer with hands-on experience in all phases of product

Expert B624L

Adjunct professor of electrical and computer engineering with years of industry experience in...

Expert G524L

Embedded systems industry veteran who built or managed the development of more than one hundred...

Expert F200K

Electrical engineer and embedded computing pioneer with over thirty years of experience...

Expert K532N

Professor emeritus of computer science at one university and an associate professor of the same...

Expert M244N

Professor of electrical and computer engineering with significant industry

Expert K650N

Former adjunct professor of computer science and university researcher turned industry...

Expert B420K

An international leader in software, hardware, and systems testing and a prolific writer in the...

Expert L110F

Electrical engineer and consultant with a practice in telecommunications, information technology...

Expert B320S

Career consultant in the field of telecommunications and information services with extensive...

Expert O600R

Computer networking and wireless technology expert with over thirty years of industry experience...

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