Tetra DMO - 1B DM-REP Frequency Efficient protocol implementation proposal ©
Original Publication Date: 2004-May-21
Included in the Prior Art Database: 2004-May-21
While using Tetra DMO protocol a Direct Mode REPeater device may be used to enable two or more DM-MSs, using either the private call or the group call protocol procedures, to extend their coverage range. This DM-REP may be either a type 1 DM-REP capable of supporting only a single call on the Air Interface or a type 2 DM-REP, capable of supporting two calls simultaneously. A type 1 DM-REP may operate on either a single RF carrier (type 1A DM-REP) or a pair of duplex-spaced RF carriers (type 1B DM-REP).