Trunked radio system with demand-controlled broadband network expansion

摘要

The trunked radio system (10) consists of a trunked radio network (12) with narrowband transmission channels (17) with high area coverage and a data radio network (13) with broadband transmission channels (27), the data radio network (13) having incomplete area coverage. If a trunk radio terminal (22) requests an expansion of the area coverage of the data radio network (13) via the trunk radio network (12), at least one mobile converter device (55) is positioned so that the location of the requesting trunk radio terminal (22) with the data radio network is extended (13) is reached.