H - Electricity – 04 – J
Patent
H - Electricity
04
J
363/2
H04J 4/00 (2006.01) H04Q 7/28 (2006.01) H04Q 7/30 (2006.01)
Patent
CA 2006497
FDM INBOUND/TDM OUTBOUND COMMUNICATION SYSTEM Abstract of the Invention An apparatus is provided for arranging an RF trunked communication system into a multiplicity of individual RF trunked communication subsystems. Within each subsystem, the subscriber units utilize Frequency Division Multiplexing (FDM) to communicate with the fixed equipment (inbound). Also, within certain subsystems, the fixed equipment utilizes Time Division Multiplexing (TDM) to communicate with the subscriber units (outbound). One advantage of this arrangement is that the subsystems may be further arranged to share one or more inbound FDM channels and one or more outbound TDM time slots as a duplex (inbound and outbound) control channel.
Kotzin Michael D.
Van Den Heuvel Anthony P.
Gowling Lafleur Henderson Llp
Kotzin Michael D.
Motorola Inc.
Van Den Heuvel Anthony P.
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