On-site/trunking system frequency sharing

Details On-site/trunking system frequency sharing On-site/trunking system frequency sharing

1990-06-29

1993-09-21

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at separate stations

455 561, 379 60, H04Q 700

Patent

active

052477010

ABSTRACT:
Shown, herein, is a method of allowing use of small, low-power communication systems within the service coverage area of larger trunked systems. The small, low-power systems are constructed to reuse at least some of the communication resources, also used by the larger system. The large system measures signal strength values of large cell communication units and transfers such values to the small systems. A small system compares the transferred values with a threshold and when the threshold is exceeded, reuses the communication resources under a TDM format within the small system.

REFERENCES:
patent: 4144411 (1979-03-01), Frenkiel
patent: 4932049 (1990-06-01), Lee
patent: 5040238 (1991-08-01), Comroe et al.
patent: 5093925 (1992-03-01), Chanroo

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