Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1995-12-05
1998-05-12
Eisenzopf, Reinhard J.
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455452, 455 62, 455 63, 455 673, H04Q 726
Patent
active
057521921
ABSTRACT:
In each cell of a mobile communication system with reuse of a plurality of radio channels by dynamic channel allocation, a base station repeats measuring an interference signal level of each channel of candidate channels during a predetermined interval for storage as a first stored level and then further during the interval for storage as a whole as a second stored level when the first stored level is lower than a predetermined reference level and selects, based on such stored levels, an allocated channel for communication with a mobile station in the cell. If the first stored level is lower than a lower reference level, further measurement is unnecessary. Alternatively, the base station repeats measurement and storage as regards different ones of the candidate channels at a regular and a shorter refresh interval. This invention is applicable to channel reuse in a microcellular mobile communication system with its central base station made to measure interference signal levels of different radio channels at regular and shorter refresh intervals.
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Eisenzopf Reinhard J.
Le Thanh
NEC Corporation
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