Method and apparatus that compensates for output power variation

Details Method and apparatus that compensates for output power variation Method and apparatus that compensates for output power variation

1996-09-25

1999-11-09

Chin, Wellington

Telecommunications

Transmitter

Power control, power supply, or bias voltage supply

455126, 455115, 455123, H04B 0104

Patent

active

059830859

ABSTRACT:
In a base transceiver station in a cellular network, a digital signal processor generates a baseband input signal, which is converted to analog and transmitted by a transmitter at radio frequency. In accordance with the present invention, the baseband input signal is scaled by a selected factor from a predetermined table of scaling factors. The scaling factors are determined based on measured output power characteristics of the transmitter and provide frequency compensation caused by filtering ripple and/or attenuation compensation caused by uncertainties in internal attenuators.

REFERENCES:
patent: 5369637 (1994-11-01), Richardson et al.
patent: 5524285 (1996-06-01), Wray et al.
patent: 5740520 (1998-04-01), Cyze et al.

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