Radiotelephone system for groups of remote subscribers

Details Radiotelephone system for groups of remote subscribers Radiotelephone system for groups of remote subscribers

H - Electricity

04

M

H04M 11/06 (2006.01) H04Q 7/36 (2006.01)

Patent

CA 2350879

A power-conserving time division multiple access (TDMA) radiotelephone 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 time slot-by-time slot basis, the different channel-identifying intermediate 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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