Geolocation and wireless multimedia

The FCC mandates locating wireless phones during 911 calls, leading to the development of various geolocation technologies. This paper reviews these techniques, emphasizing geolocation's future role in value-added services. It specifically details Assisted GPS for its accuracy and cost-effectiveness, and introduces SAMPS (System Assisted Mobile Positioning through Satellite), an assisted GPS-based standard for TDMA networks that enables positioning services and enhances GPS receiver performance in handsets.