Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1998-08-31
2000-12-05
Urban, Edward F.
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455509, 455430, H04G 720
Patent
active
061578401
ABSTRACT:
A satellite (110 FIG. 1) is used to make channel allocations for SUs (120) in communications system (100). Satellite (110) operate within the confines of at least one subset of satellites. Satellites (110) allocate channels using a maximum cost list that is based on a cost function methodology. A list of potentially interfering antennas is determined using a cost function analysis. A list of active channels on each one the potentially interfering antennas is also established. Another list that includes a set of potentially interfering channels for each active channel is established. Cost functions are computed for each pair of active channels and its potentially interfering channels. These cost functions establish interference potentials for the available channels in the maximum cost list (400). Channels are allocated using the maximum cost list and interference potential thresholds. Cost functions are based on spatial isolation, spectral isolation, and temporal isolation.
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Davieau Gerald Joseph
Hogberg Shawn Wesley
Gesesse Tilahun
Klekotka James E.
LeMoine Dana B.
Motorola Inc.
Urban Edward F.
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