Telecommunications Expert Witness
We provide telecommunications expert witness testimony for litigation involving cellular networks, wireless protocols, broadband systems, and network infrastructure. Telecommunications disputes frequently center on patent infringement, standards essentiality, network performance, or protocol compliance. We analyze system architectures, protocol implementations, standards contributions, and network configurations to provide testimony on infringement, invalidity, standards essentiality, and breach of contract claims.
Common Disputes We Handle
Wireless and Cellular Patent Disputes Infringement and invalidity analysis for patents covering cellular systems (2G through 5G), Wi-Fi protocols, Bluetooth, antenna technologies, and signal processing methods. Source code review, claim chart preparation, standards mapping, and expert reports for district court, ITC, and PTAB proceedings.
Standards-Essential Patent (SEP) Disputes Analysis of standards essentiality, FRAND licensing obligations, and patent portfolio valuation for disputes involving 3GPP, IEEE 802.11, and other telecommunications standards. Technical mapping of patent claims to standard specifications.
Network Infrastructure and Performance Disputes Evaluation of network architecture design, capacity planning, service-level compliance, and performance degradation for breach of contract and warranty claims involving carriers, equipment vendors, and managed service providers.
VoIP and Unified Communications Technical analysis of voice-over-IP systems, SIP protocol implementations, RTP media handling, call routing, and quality-of-service configurations for disputes involving telephony platforms, conferencing systems, and communication service providers.
Representative Engagements
BLE Beacon Patent Infringement Retained in a patent infringement matter involving six patents directed to Bluetooth Low Energy beacon technology used in mobile devices. The patents were challenged at the PTAB and found unpatentable as obvious over prior art.
Mobile Network Virtualization Patent Infringement Retained in a patent infringement case involving distributed mobile architecture patents covering virtualized network functions deployed on off-the-shelf servers at the network edge.
Base Station Patent Infringement Analyzed base station source code of several potential infringers against an established claim chart, identifying potentially infringing features. Assisted with drafting expert declarations.
Our Experts
Cellular Communications and Wi-Fi Expert Witness
Background
This expert holds a PhD in electrical engineering from a top technical university, specializing in signal processing and communications. They have served as a professor in electrical and computer engineering at a major public university, where they lead a center dedicated to wireless technology research. They hold a named chair position endowed by a Fortune 500 company in the defense and telecommunications sector, reflecting recognition for applied research in the field. They have extensive experience as an expert witness in telecommunications-related litigation, spanning over 10 years across numerous cases in U.S. district courts, the International Trade Commission (ITC), and Patent Trial and Appeal Board (PTAB) proceedings such as inter partes reviews (IPRs). They have prepared reports and declarations on topics including infringement, validity, claim construction, standards essentiality, product testing, and technical scope of licenses, and have testified at multiple depositions and trials on behalf of both plaintiffs and defendants.
Expertise
- Cellular: 3G, 4G LTE, 5G, Wi-Fi 802.11, Bluetooth, DSL
- Beamforming, MIMO, adaptive antennas, software-defined radio (SDR), ultra-wideband (UWB) sensing
- Frequency-hopping spread spectrum (FHSS), OFDM, signal processing, channel estimation
- Femtocells, home base stations, location-based services (LBS), cellular & Wi-Fi integration
- Protocol architectures for cellular networks, standards essentiality analysis, patent claim mapping
Wireless Protocols Expert Witness
Background
This expert holds a Ph.D. in computer science from a top university in California, specializing in networking and communications. They have held academic positions as a fellow and lecturer in industrial engineering and operations research, and served as CTO for a company specializing in smartphone wireless telecommunications service integration. They have over 15 years of experience as an expert witness, having been retained in cases involving telecommunications, network communications, mobile wireless, and Internet software technologies. Their litigation support includes preparing reports and testifying in Federal, IPR, and ITC cases, with involvement in over 140 patent-related matters and numerous depositions and courtroom testimonies.
Expertise
- TCP/IP, TCP, UDP, IP, Ethernet, 802.3, packet switching, data center network architecture
- Wi-Fi (802.11), Bluetooth, MAC, PHY, WLAN, cellular systems, SMS, instant messaging, mobile devices
- Routing & switching (LAN, WAN, VPN, RIP, BGP, MPLS, OSPF), multicast, DNS, QoS
- VoIP, SIP, RTP, SS7, SONET, TDM, PSTN, circuit switching, IP telephony, video/audio conferencing, streaming media
Wireless Communications Expert Witness
Background
This expert holds a PhD in telecommunications and networking from a top-ranked university, along with master’s degrees in condensed matter physics and statistical physics. They have served as a professor in computer science and engineering departments at public research universities, with prior positions as a research scientist. Professional experience includes system architecture and embedded system engineering at a telecommunications equipment company specializing in multi-service routers and networking systems.
Expertise
- IP/ATM hybrid switching, MPLS traffic engineering, DiffServ
- QoS, Congestion control, TCP utility functions
- Wireless channel capacity models, multi-user systems, fade statistics, MIMO
- TCAM-based packet classification, range-encoding schemes, web caching, flow caching
- Network processor architectures, layer-4 switching
Telecommunications Expert Witness
Background
This expert holds a Ph.D. in computer science with a specialization in advanced mobile radio networks from a prominent public university, along with a master’s degree in computer engineering emphasizing telecommunications and multimedia from a leading technical university. They have served in senior academic leadership roles, including as a professor, department chair, and school director in electrical engineering, computer science, and computing programs at public universities. Earlier career experience includes research at academic labs focused on high-speed networks and advanced telecommunications systems, and work at major European telecommunications firms involved in signaling protocols, multimedia services, and hardware development for PBX systems.
Expertise
- Mobile radio networks, ad hoc networks, sensor networks, mesh networks, Bluetooth scatternet
- Medium access control (MAC), hybrid MAC, link activation
- Admission control, call degradation, interference-aware routing, QoS schemes
- Location tracking (RSSI, time-of-flight), interferometric ranging
- Distributed multimedia over ATM
- DOCSIS, authentication and access control, routing protocols (OSPF, BGP)
- C, C++, Python, Pascal, assembly, network simulation (NS2, OPNET)
Mobile Communications Expert Witness
Background
This expert holds a Doctor of Science in Electrical Engineering, with a dissertation focused on cell design to maximize capacity in cellular CDMA networks. With over 30 years of combined industry and academic experience, they have served as a tenured associate professor at a major public university, conducting research and teaching in telecommunications and wireless systems. Prior roles include senior systems engineering positions at telecommunications firms specializing in wireless technologies. Over the past ten years, they have provided litigation support and served as a technical expert witness in dozens of patent-related matters involving thousands of hours of research and analysis. They have been qualified as an expert by courts and offered testimony through depositions and trials on issues such as patent infringement, validity, and claim construction, with experience spanning inter partes reviews, ITC investigations, and district court cases.
Expertise
- Cellular (2G, 3G, 4G LTE, 5G NR), CDMA, WCDMA, GSM, UMTS, LTE
- MIMO, massive MIMO, antenna design, adaptive antennas, beamforming, signal detection, channel coding
- Resource allocation, interference management, call admission control, throughput optimization
- Wi-Fi protocols, Bluetooth, ad-hoc networks, wireless sensor networks, vehicular communications (V2X)
- VoIP, telephony, GPS integration
- Software design for CDMA and Wi-Fi systems, quality-of-service (QoS)
Speak with an Expert about Your Case
- Monday – Friday
- 8am – 6pm PT
- 11am – 9pm ET
Discuss your Case
- info@sidespingroup.com
- (800) 510-6844
- Monday – Friday
- 8am – 6pm PT
- 11am – 9pm ET
Lead Expert
