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

Patent Infringement and Validity,
and Litigation Support Services

(Wideband Code Division Multiple Access)

Our work in WCDMA technologies, networks and standards began in 1998. This work has included technical analysis, patent analysis projects, expert witness engagements, seminars and research reports. As a result, we have developed an in-depth expertise in nearly every facet of WCDMA. This includes:

  • WCDMA Network Technologies, Architectures, and 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
    • Air & Radio interfaces, protocols, stacks, modulation, encoding, signalling and messages for:
      • Direct-Sequence Code Division Multiple Access (DS-CDMA)
      • Frequency Division Duplex (FDD)
      • Frequency Division Multiple Access (FDMA)
      • Time Division Duplex (TDD)
      • Time Division Multiple Access (TDMA)
      • Time Division Synchronous Code Division Multiple Access (TD-SCDMA)
      • UTRA-TDD 3.84 Mcps High Chip Rate (UTRA-TDD HCR)/(TD-CDMA)
      • Wideband Code Division Multiple Access (WCDMA)
  • WCDMA Terminals & Phones
    • Architecture, functions, Operating Systems/OS, SIM cards, USIM cards, UICC smart card, activation, registration, authorization, Graphical User Interfaces (GUI), text input, Web browsers, filters and access control
  • WCDMA Spectrum Use, Management and Availability
  • WCDMA LoCation Services (LCS) and Positioning methods (/locating methods)
  • Applications & Services
    • Systems, methods, practices, standards and technologies used to manage, store, generate, send, and receive voice, text, MMS and SMS messages
    • Multimedia Broadcast/Multicast Services (MBMS)
    • Messaging: Email, SMS, EMS, MMS, voice mail, text/instant messaging, picture/video messages, ringtones, ringback tones, and answer tones
    • Entertainment, Games, Gaming, Gambling, Mobile Video, Location Services
  • WCDMA Billing and Charging Systems including usage information (Charging/Call Data Records - CDR), usage collection, rating, charging, call event, accounting and billing

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

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

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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