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

Patent Infringement and Validity,
and Litigation Support Services

CDMA (code division multiple access)
Technologies & Standards

Our work in CDMA technologies, networks and standards began in 1992. This work has included technical analysis, expert witness engagements, patent analysis projects, research reports, and seminars. As a result, we have developed an in-depth knowledge and expertise in nearly every facet of CDMA. This includes:

  • CDMA Network Technologies, Architectures & Standards
    • Including cdmaOne, 1xRTT, CDMA, CDMA2000, EV-DO, & IS-95
    • Third Generation Partnership Project 2 (3GPP2) 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)
      • Handover and handoff
      • Mobility Management
      • Network interconnection and interworking
      • Packet and circuit switching
      • Security
      • Telecom management
    • Air & Radio interfaces, protocols, stacks, modulation, encoding, signalling and messages for:
      • cdmaOne (TIA/EIA/IS-95 and ANSI-J-STD 008)
      • CDMA2000 1X (TIA/EIA/IS-2000) 1X Advanced
      • CDMA2000 1xEV-DO Release 0 (TIA/IS-856)
      • CDMA2000 1xEV-DO Revision A (TIA/EIA/IS-856-A)
      • CDMA2000 1xEV-DO Revision B (TIA/EIA/IS-856-B) DO Advanced
      • Frequency Division Multiple Access (FDMA)
      • Frequency Division Duplex (FDD)
      • Time Division Duplex (TDD)
  • CDMA Spectrum Use, Management and Availability
  • CDMA 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
  • CDMA Applications & Services
    • Systems, methods, practices, standards and technologies used to manage, store, generate, send, and receive voice, text, MMS and SMS messages
  • CDMA LoCation Services (LCS) and Positioning methods (/locating methods)
  • CDMA Market Forecasts and Analysis (subscribers, sales and shipments)
  • Competitive analysis (carriers/operators, manufacturers, developers, distributors, resellers)

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

  • System, standards, network, product and technology analysis (from a technical, functional, & market/industry and competitive perspective)
  • Patent analysis & research
    • Technical review and analysis of patent claims, preparation of claims charts and validity and infringement opinions
    • Defend and counter claims of infringement
    • Identify infringing patents and products
    • Identify infringing technical standards and the systems that incorporate these standards
    • Portfolio Analysis
    • Patentability Evaluations
    • Entire market value rule (EMVR) analysis
    • Product value apportionment analysis
  • 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
  • CDMA product & technology licensing and agreements
    • Joint development agreements
    • Product development agreements
      • Product specifications
  • Confidentiality of trade secrets, customer lists, business plans, new & proprietary products and services
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

Home | About Us | Consulting Services | Seminars | Reports | Clients | Contact Us | Links | News

© 1997 - 2016 Alexander Resources