Alexander Resources LTE Experts and Consultants
Product and Technology Analysis, Expert Witness,

Patent Infringement and Validity,
and Litigation Support Services

LTE (Long Term Evolution of Universal Terrestrial Radio Access Network) Mobile Technologies

Our work in LTE technologies, networks and standards began in 2005. This work has included technical analysis, patent analysis projects, expert witness engagements, research reports, and seminars. As a result, we have developed an in-depth knowledge and understanding of nearly every facet of LTE. This includes:

  • LTE Network Technologies, Architectures & Standards 
    • Network functions, protocols, interfaces, signalling and messages for:
      • Core Network (CN)/Network Subsystem (NSS) network element
      • Radio Access Network (RAN)/Access Network (AN) network elements
      • Authentication, Authorization and Accounting (AAA)
      • Channels: Physical, Logical, Traffic, Control and Transport
      • Handover and handoff
      • Mobility Management
      • Network interconnection and interworking
      • Packet and circuit switching
      • Security
      • Telecom management
      • User, Control and Network planes
    • Radio Technologies - Radio interfaces, protocols, stacks, modulation, encoding, signalling and messages for:
      • LTE - Physical Layer (LTE-PHY)
      • LTE - Radio Interface Layer 2 and 3 Protocol Aspect (LTE-L23)
      • LTE - eUTRAN Interfaces (LTE-interfaces)
      • LTE - RF Radio Transmission/Reception, System Performance Requirements (LTE-RF)
      • LTE FDD repeaters (LTE-Repeaters)
      • OFDM (Orthogonal Frequency Division Multiplexing)
      • OFDMA (Orthogonal Frequency Division Multiple Access) in downlink
      • Single Channel FDMA (SC-FDMA) in uplink
      • MIMO
      • TDD and FDD operation
    • Third Generation Partnership Project (3GPP) standards
    • LTE Terminals & Phones
      • Architecture, functions, Operating Systems/OS, Graphical User Interfaces (GUI), text input, SIM cards, USIM cards, UICC smart card, activation, registration, authorization, Web browsers, filters and access control
    • LTE LoCation Services (LCS) and Positioning methods (/locating methods)
    • LTE Spectrum Use, Management and Availability
    • LTE Applications & Services
      • Multimedia Messaging Service, video chat, mobile TV, High definition TV content, DVB
      • Systems, methods, practices, standards and technologies used to manage, store, generate, send, and receive voice, text, MMS and SMS messages

Our Litigation Support Services in LTE include Product and Technology Analysis, Patent Analysis and Expert Witness Services. Previous LTE engagements have addressed:

  • Network, technology, system, standards, and product analysis (from a technical, functional, & market/industry and competitive perspective)
  • LTE product & technology licensing and agreements
    • Joint development agreements
    • Product development agreements
      • Product specifications
  • Patent analysis & research
    • Technical review and analysis of patent claims, preparation of claims charts and validity and infringement opinions
    • Identify infringing patents and products
    • Identify infringing technical standards and the systems that incorporate these standards
    • Defend and counter claims of infringement
    • Portfolio Analysis
    • Patentability Evaluations
    • Entire market value rule (EMVR) analysis
    • Product value apportionment analysis
  • Business management, practices & operations
    • Contracts
    • Sales, marketing and distribution agreements
      • Dealer and distributor relationships and agreements
    • Supplier agreements
    • Royalty calculations & payments
    • Purchase orders and purchase agreements
  • Confidentiality of trade secrets, customer lists, business plans, new & proprietary products and services
  • Product quality, defects, warranty and repair issues
For additional information see: Patent Analysis and Expert Witness Services

* See also 3G and 4G Networks and Technologies

Other expert and consulting services focus on:
Cell Phones
Cell Phone Records, Billing and Usage
Mobile Phones
Radio Spectrum
Telephone Consumer Protection Act (TCPA)

Our Litigation Support Services are headed by Mr. Jerry Kaufman, the president of Alexander Resources. In addition to managing all engagements, he directly manages the research and production of all expert reports, analysis, and testimony. He personally testifies at trial and depositions.

Please refer to Mr. Kaufman's biography for additional information on his background and capabilities.

For a confidential review of your requirements, please contact Carol Smyth at 972-818-8225 or via e-mail at

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