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AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsJun Yamada, Masaki Terashima, Kenichi Ooyama, Eiji Ohmori
Estimating the term…
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.
A method by which a microcellular system (MCS) sharing voice channels in a frequency band allocated to a cellular mobile telephone system (CMTS) selects channels therefrom for allocation to said MCS, said MCS operating in the same area as a local cell of said CMTS to which said CMTS has allocated particular ones of said CMTS voice channels, wherein said MCS performs the steps of:
A microcellular system (MCS) which shares the voice channels of a frequency band allocated to a cellular module telephone system (CMTS) and which operates in the same area as a local cell of said CMTS to which said CMTS has allocated particular ones of said CMTS voice channels, comprising:
Dependencies are inferred from the claim text.