Wireless base station with near-far gain compensation

Details Wireless base station with near-far gain compensation Wireless base station with near-far gain compensation

1997-03-04

2000-06-13

Chin, Wellington

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

455452, 455561, 370277, H04B 700, H04B 106

Patent

active

060759917

ABSTRACT:
A wireless base station receiver receives weak signals from mobile units at a first position using a first receiver configuration and strong signals from mobile units at a second position using a second receiver configuration. The base station receiver includes an input terminal to receive an inbound signal from each mobile unit. A diplexer is coupled to the input terminal and configured to receive the inbound signal and to pass a first frequency band of the inbound signal as a first signal, and to pass a second frequency band of the inbound signal as a second signal. An attenuator is coupled to the diplexer and configured to attenuate the second signal to create a third signal. A downconverter is coupled to the diplexer and the attenuator and configured to downconvert the first signal and the third signal to provide a downconverted inbound signal. An analog to digital converter coupled to the downconverter and configured to convert the down converted inbound signal to a digital signal. Advantages of the invention include the ability to compensate for the gain required to receive inbound signals from near and far mobile units.

REFERENCES:
patent: 4509206 (1985-04-01), Carpe et al.
patent: 5233626 (1993-08-01), Ames
patent: 5285165 (1994-02-01), Renfors et al.
patent: 5448751 (1995-09-01), Takenaka et al.
patent: 5537680 (1996-07-01), Bruno
patent: 5568158 (1996-10-01), Gould

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