Communication system that avoids co-channel interference

Details Communication system that avoids co-channel interference Communication system that avoids co-channel interference

1990-12-14

1994-06-07

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at separate stations

455 341, 455 561, 455 63, H04B 726, H04Q 702

Patent

active

053197968

ABSTRACT:
Co-channel user (129) interference on trunked radio communication systems cannot be compensated for in the same way as conventional radio systems because the communication unit does not know what frequency it will be assigned to until it begins transmitting. Placing an additional receiver (119) in the coverage area (125) of the co-channel user (129) and sending information of recent co-channel usage to the controller (101) allows the controller (101) to decide which channel has the least likelihood of co-channel interference so that it may be assigned.

REFERENCES:
patent: 4025853 (1977-05-01), Addeo
patent: 4578815 (1986-03-01), Persinotti
patent: 4612415 (1986-09-01), Zdunek et al.
patent: 4799253 (1989-01-01), Stern et al.
patent: 4831373 (1989-05-01), Hess
patent: 5040238 (1991-08-01), Comroe et al.
patent: 5047762 (1991-09-01), Bruckert
patent: 5093927 (1992-03-01), Shanley
patent: 5095529 (1992-03-01), Comroe et al.
patent: 5148548 (1992-09-01), Meche et al.

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