PPT Slide
Globalstar System Overview
PILOT: unmodulated DS SS signal transmitted by the Gateway (employed to acquire the timing, as phase reference for demodulation and to handoff)
SYNC: channel carrying a repeating message for terminal synchronization
TRAFFIC: communication path between a UT and a Gateway, which implies a Forward and a Reverse Traffic Channel pair; for voice, data, signaling (when in a call)
ACCESS: slotted random access channel for call originations, responses to pages and registrations
Globalstar Air Interface Channels