Cellular mobile communication system having apparatus for changi

Details Cellular mobile communication system having apparatus for changi Cellular mobile communication system having apparatus for changi

1994-03-09

1996-03-12

Urban, Edward F.

Telecommunications

Transmitter and receiver at separate stations

455 561, 370 74, H04Q 730

Patent

active

054993954

ABSTRACT:
Cellular mobile communication system includes a plurality of base stations connected to a relay station, each base station having adaptability for coping with change in traffic volume within a relevant cell covered thereby. Each base station includes a variable gain power amplifier for amplifying a pilot signal and a power control circuit for controlling the gain of the power amplifier. The power control circuit controls gain of a pilot signal sending power in accordance with a control signal supplied from a device installed in a relay station for monitoring traffic states of the individual base stations. The relay station issues a command for lowering the power gain for the base station which covers a traffic-concentrated cell while raising the power gain for the base stations covering the neighboring cells, to thereby contract the size of the traffic-concentrated cell. With a smaller number of base stations, communication demand can be controlled over a broad area.

REFERENCES:
patent: 4197496 (1980-04-01), Hiyama
patent: 4435840 (1984-03-01), Kojima et al.
patent: 4669107 (1987-05-01), Eriksson-Lennartsson
patent: 4759051 (1988-07-01), Han
patent: 5241685 (1993-08-01), Bodin et al.
patent: 5241686 (1993-08-01), Charbonnier
patent: 5276907 (1994-01-01), Meidan
Basic of Mobile Communication: The Institute of Electronics, Information and Communication Engineers of Japan, Published in May, 1991 pp. 188-217.

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