GEO-Mobile Radio Interface Specifications (Release 3); Third Generation Satellite Packet Radio Service; Part 5: Radio interface physical layer specifications; Sub-part 2: Multiplexing and Multiple Access; Stage 2 Service Description; GMR-1 3G 45.002 (V3.2
The present document defines the structure of the physical channels for the radio subsystem in the GMR-1 3G Mobile Satellite System. It describes the GMR-1 3G concept of logical channels and the timing concepts of TDMA frames@ timeslots@ and bursts. It defines the relationship between logical and physical channels@ and defines the logical channels in terms of size@ structure and timing relationships.