Introduction

The System Assisted Mobile Positioning through Satellite (SAMPS) Teleservice defines the procedures and signaling for a handset-based positioning service. SAMPS supports various location-based services. SAMPS addresses subscriber-positioning requirements in TIA/EIA-136 based networks and TIA/EIA-553-A based networks by utilizing the existing Global Positioning System (GPS) infrastructure. SAMPS utilizes the data and signaling capabilities of TIA/EIA-136 and this specification to enhance the performance of GPS-equipped Mobile Stations (MSs) by providing "GPS assistance."

The procedures, signaling and transport for operation of SAMPS on digital channels (DCCH, DTC) are specified in TIA/EIA-136-740. This specification defines the procedures, signaling, and transport for operation of SAMPS on analog channels (ACC, AVC).