Mobile & Wireless Expert Witness — Wi-Fi, WLAN & Mobile Device Technologies
Dr. Tal Lavian, Ph.D. is a mobile wireless expert witness retained in patent litigation and technology disputes involving mobile wireless systems, Wi-Fi 802.11 protocols, and wireless network communications.
Dr. Tal Lavian serves as a mobile and wireless technology expert witness in patent litigation, PTAB inter partes review (IPR) proceedings, and ITC Section 337 investigations involving wireless communications. As a telecommunications expert witness and internet technology expert, he applies nearly 20 years of academic research at UC Berkeley and hands-on industry experience to mobile wireless technology analysis, combining deep technical knowledge with 90+ cases of patent litigation expertise.
His background covers mobile wireless systems, devices, and networks. Dr. Lavian has experience with the relationships between wireless applications and their underlying communications service architectures, designs, and implementations.
Background
Dr. Lavian holds a Ph.D. in Computer Science from UC Berkeley, specializing in network communications, and spent nearly 20 years researching, studying, and lecturing at UC Berkeley. He served as Principal Scientist and Principal Architect at Nortel Networks (1996–2007) and as a DARPA Principal Investigator. Dr. Lavian has over 120 patents, over 25 scientific publications, and has been retained in over 90 cases, including 60+ depositions, before U.S. federal courts, PTAB, ITC, and international tribunals, on behalf of over 50 law firms and corporate clients. Dr. Lavian's peer-reviewed publications are indexed on Google Scholar. His mobile and wireless case work includes T-Mobile v. Barkan Wireless Access Technologies (U.S. Patent Nos. 8,559,369 and 9,042,306, involving wireless access technologies), IXI Mobile v. Apple (U.S. Patent Nos. 7,426,398 and 7,295,532, involving mobile device technologies), and Ericsson v. Samsung (ITC) (U.S. Patent Nos. 6,772,215 and 6,519,223, involving wireless communications).
Mobile & Wireless Expert
The following are Dr. Tal Lavian’s areas of expertise in Mobile and Wireless Technologies:
- Wi-Fi, IEEE 802.11, MAC, PHY.
- Bluetooth, IEEE 802.15, short-range wireless protocols.
- Wireless LAN (WLAN), SMS, MMS, Instant Messaging (IM) chat.
- ARQ and HARQ (Automatic Repeat reQuest / Hybrid ARQ) error control protocols.
- Handsets, mobile devices, smartphones.
- Wireless systems, architectures, and standards.
- Standards, systems, and backend infrastructure.
Wireless telecommunications providers are experiencing growth in mobile data transmission, driving demand for mobile devices supporting data-intensive consumer-based applications, such as location-based services and 3D gaming. Mobile and wireless technologies and their associated infrastructure support applications such as defense, emergency response, logistics, smart city, network infrastructure, and supply chain management.
Mobile network infrastructure is based on a software-defined architecture that supports automation, configuration changes, and the addition of new capabilities.
Mobile and Wireless in Patent Litigation
Dr. Lavian’s mobile and wireless expertise covers Wi-Fi, wireless LAN protocols, wireless network access technologies, mobile device architectures, and wireless security. He provides analysis and testimony in patent disputes involving these technologies before U.S. federal courts, PTAB, and the ITC.
Wi-Fi 802.11 Expert Witness
Dr. Lavian provides expert witness services in Wi-Fi 802.11 patent litigation, covering the full IEEE 802.11 protocol stack from the physical layer (PHY) through the medium access control layer (MAC). His Wi-Fi 802.11 expertise includes CSMA/CA channel access mechanisms, RTS/CTS handshaking, ACK frame processing, WLAN architecture (BSS, ESS, and access point association), management frame structures, and Wi-Fi 802.11 security protocols including WPA2, 802.1X, and EAP. Dr. Lavian has been retained in Wi-Fi 802.11 patent cases involving Apple, T-Mobile, and other major wireless technology companies, providing claim construction and infringement analyses on Wi-Fi 802.11 system patents.
Frequently Asked Questions
What wireless technologies is Dr. Lavian expert in?
Dr. Lavian is expert in Wi-Fi (IEEE 802.11), Bluetooth (IEEE 802.15), wireless LAN protocols, ARQ and HARQ error control protocols, mobile wireless network architecture, wireless access technologies, and mobile device networking in the context of patent litigation.
Has Dr. Lavian testified in ITC wireless cases?
Yes. Dr. Lavian has testified in International Trade Commission (ITC) Section 337 investigations involving wireless communications technologies, including smartphones and wireless networking equipment.
What is Dr. Lavian’s background in wireless communications?
Dr. Lavian has a Ph.D. from UC Berkeley and research experience in wireless network protocols. His patent portfolio includes patents covering wireless communication technologies, and he has testified in wireless cases in federal courts, PTAB, and ITC proceedings.
What types of wireless patent disputes has Dr. Lavian handled?
Dr. Lavian has handled patent disputes involving Wi-Fi implementations, wireless network access control, wireless roaming and handoff mechanisms, WLAN security, and mobile device connectivity architectures.
What wireless companies has Dr. Lavian served as an expert for?
Dr. Lavian has been retained in wireless patent cases involving companies including Apple, Samsung, Motorola, T-Mobile, and Ericsson, providing analysis and testimony on Wi-Fi and wireless access technologies.