A-GPS (Assisted-Global Positioning System)
A-GPS (Assisted-Global Positioning System) is a system that often significantly improves the startup performance—i.e., time-to-first-fix (TTFF)—of a...
Definition:
This system is interfaced with the LMR (Land Mobile Radio) system of each agency (there may be several). Its purpose is to connect the ECC with first responders in the field (Fire, EMS, Law Enforcement). It conveys voice, and in modern LMR systems, it can convey the ID of the caller’s (ANI), as well as the caller’s emergency status. In some advanced LMR systems, it can also convey the location of the field units.