Modularly clustered radiotelephone system
First Claim
1. A radio telephone system having a base station and a modular subscriber cluster, where a plurality of physically adjacent subscribers share a common pool of frequency agile modems, comprising:
- means for defining a repetitive set of time slots for signal transmission;
said cluster tracking and assigning a priority to all available time slots of said common pool modems;
said cluster selecting one of available time slots based on the assigned priority; and
said cluster through a plurality of channel identifying frequencies synchronizing said selected time slot of a selected one of said common pool modems to a selected time slot of a plurality of received time slots.
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Accused Products
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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Citations
7 Claims
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1. A radio telephone system having a base station and a modular subscriber cluster, where a plurality of physically adjacent subscribers share a common pool of frequency agile modems, comprising:
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means for defining a repetitive set of time slots for signal transmission;
said cluster tracking and assigning a priority to all available time slots of said common pool modems;
said cluster selecting one of available time slots based on the assigned priority; and
said cluster through a plurality of channel identifying frequencies synchronizing said selected time slot of a selected one of said common pool modems to a selected time slot of a plurality of received time slots. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification