Modularly clustered radiotelephone system

Details Modularly clustered radiotelephone system Modularly clustered radiotelephone system

1993-09-30

1996-08-13

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 70, 370 953, H04J 400

Patent

active

055463835

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.

REFERENCES:
patent: 4785450 (1988-11-01), Bolgiano et al.
patent: 4811420 (1989-03-01), Avis et al.
patent: 5325396 (1994-06-01), Critchlow et al.
Basic Exchange Telecommunication Radio (BETR) Technology, Robert McGuire, 1988 Proceedings of the National Communications, pp. 1714-1721.

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