Modulary clustered radiotelephone system
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United States of America Patent
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Mar 27, 2001
Issued Date -
N/A
app pub date -
Dec 21, 1998
filing date -
Sep 30, 1993
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A power-conserving time division multiple access (TDMA) radio telephone system is disclosed in which a cluster of subscriber stations, remote from a base station, employs a common pool of frequency-agile modems each of which digitally synthesizes, on a timeSlot-by-timeSlot basis, the different channel-identifying intermediate frequencies needed to support communications between several of the subscriber stations and the base station. Power conservation is facilitated inter alia by controlling the assignment of modems to calls, maintaining unassigned modems in a powered-down state and by controlling the number of calls using the same time slot. Delay in assigning a powered-down modem to a call is eliminated by making available to all modems the highest quality synchronization information obtained by any of the active modems.
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Family
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Cited Art Landscape
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