Cellular telephone system capable of reducing IM distortion at p

Details Cellular telephone system capable of reducing IM distortion at p Cellular telephone system capable of reducing IM distortion at p

1990-10-31

1993-08-24

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at separate stations

Distortion, noise, or other interference prevention,...

455 69, 455 88, 455254, 455296, H04B 110

Patent

active

052396835

ABSTRACT:
A cellular telephone system includes a plurality of base stations which cover a plurality of cells. The system also includes a plurality of portable telephones communicable with the base station over radio frequency channels. A base station covering a given cell transmits an IM control signal indicating that there exists IM interference in the given cell. In response to the IM control signal, each of the portable telephones reduces its receiver sensitivity, so that the IM interference can be alleviated.

REFERENCES:
patent: 2844712 (1958-07-01), Noizeux
patent: 4121161 (1978-10-01), Ohsawa
patent: 4890300 (1989-12-01), Andrews
patent: 5093924 (1992-03-01), Toshiyuki et al.
W. C. Jakes, Jr., "Microwave Mobile Communications," published by John Wiley & Sons, 1974, pp. 281-287.

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