Systems and methods for adjusting headroom of a power amplifier

Details Systems and methods for adjusting headroom of a power amplifier Systems and methods for adjusting headroom of a power amplifier

2011-08-16

2011-08-16

Mis, David (Department: 2817)

Telecommunications

Transmitter

Power control, power supply, or bias voltage supply

C455S127100, C455S127200, C375S297000, C330S127000

Reexamination Certificate

active

08000665

ABSTRACT:
Systems and methods are provided for controlling headroom of an amplifier (e.g., in a transmitter). A method comprises obtaining a target output power for a current interval and obtaining a target headroom for a subsequent interval. The method continues by adjusting, during the current interval, the power output capability of the amplifier based on the target headroom and adjusting the input power of an input signal based on the target output power, such that the output power of the amplifier is substantially constant during the current interval as the power output capability of the amplifier is adjusted.

REFERENCES:
patent: 6684064 (2004-01-01), Kazakevich et al.
patent: 6968167 (2005-11-01), Wu et al.
patent: 7058369 (2006-06-01), Wright et al.
patent: 2005/0186923 (2005-08-01), Chen et al.

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