Alexander Resources Mobile Phone Experts and Consultants
Product and Technology Analysis, Expert Witness,

Patent Infringement and Validity,
and Litigation Support Services

Mobile Phones

Our work in mobile phone technologies, devices, networks and standards began in 1990. This work has included technical analysis, expert witness engagements, patent analysis projects, seminars and research reports. As a result, we have developed an in-depth knowledge and understanding of nearly every facet of mobile phones. This includes:

  • 2G, 3G and 4G mobile phones, feature phones, smartphones, iPhones & Android mobile phones
  • Mobile phone 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
  • Mobile Phone Network Technologies, Architectures, & Standards
    • Including functions, protocols, interfaces, signalling and messages for:
      • 3GPP, GPRS & EDGE, GSM, GSM MAP, HSPA (HSDPA, HSUPA & HSPA+), LTE, OFDM, OFDMA, UMTS, WCDMA, 3GPP2, 1xRTT, CDMA, CDMA2000, EV-DO, IS-95, IMT-Advanced,  IMT-2000, FDMA, TDMA, TDD, FDD, IS-41C & WIN, IS-54 & IS-136
  • Mobile Phone Radio Signaling (modulation and encoding)
    • Analog (Amplitude, Frequency and Phase); Digital Amplitude (ASK), Frequency (FSK), and Phase (PSK)
  • European Telecommunications Standards Institute (ETSI), Third Generation Partnership Project (3GPP) and Third Generation Partnership Project 2 (3GPP2) standards
  • Mobile phone Billing and Charging Systems including usage information (Charging/Call Data Records - CDR), usage collection, rating, charging, call event, accounting and billing
  • Mobile Phone triangulation and location determination
    • LoCation Services (LCS) and Positioning methods (/locating methods) and technologies
    • Cell Phone tracking data/cell site data
    • Sender and receiver identity and location
  • Mobile Phone and Smart Phone Applications & Services
    • Messaging: Email, text/instant messaging, SMS, EMS, MMS, voice mail, picture/video messages, ringtones, answer tones, and ringback tones
    • Systems, methods, practices, standards and technologies used to manage, store, generate, send, and receive voice, text, MMS and SMS messages
  • Mobile phone and Smartphone Spectrum Use, Management and Availability

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

  • System, standards, network, product and technology analysis (from a technical, functional, & market/industry and competitive perspective)
  • Mobile patent analysis & research
    • Technical review and analysis of patent claims, preparation of claims charts and validity and infringement opinions
    • Identify infringing patents and products
    • Defend and counter claims of infringement
    • Identify infringing technical standards and the systems that incorporate these standards
    • Patentability Evaluations
    • Portfolio Analysis
    • Product value apportionment analysis
    • Entire market value rule (EMVR) 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
  • Mobile Phone 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

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