Telecommunications – Transmitter and receiver at separate stations
Patent
1995-12-01
1998-01-20
Urban, Edward F.
Telecommunications
Transmitter and receiver at separate stations
455 341, 455 62, 379 59, H04Q 734
Patent
active
057109737
ABSTRACT:
In a microcellular system operated in the same frequency band as a cellular system, an interference-free channel is automatically searched and allocated. The microcellular system which shares the frequency band with the cellular system comprises a control unit, a base station and a multi-channel selecting receiver. The multi-channel selecting receiver monitors a use status of cellular channels of the band by repetitively scanning voice channels for a scanning time period substantially longer than the duration of any single voice communication to detect idling channels and allocates them to its own system. Whenever a communication request is issued, the base station detect a channel not used by its own system from the idling channels and allocates it for communication.
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Ohmori Eiji
Ooyama Kenichi
Terashima Masaki
Yamada Jun
Matsushita Electric - Industrial Co., Ltd.
Urban Edward F.
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