Communication system with controlled talk around mode

Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers

Reexamination Certificate

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Details

C455S518000, C455S519000, C455S522000

Reexamination Certificate

active

07010313

ABSTRACT:
The method provides talk around in the communication system by sending a talk around request from one of the subscriber units101–108to the base unit100. At the subscriber unit a RSSI (received signal strength indication) of a signal received from the base unit is determined and sent back to the base unit100. In the base unit100the RSSI is compared to a predetermined window. If the RSSI is above the window, the request from the subscriber unit is denied. If the RSSI is within the window, a frequency channel and power level are assigned to the subscriber unit, the subscriber unit thereby going into talk around mode. If the RSSI is below the window, the subscriber unit does not respond and the subscriber unit goes into a direct communication mode independent of the communication system.

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patent: EP001063785 (2000-12-01), None

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