Power Control Scheme For A Power Amplifier
First Claim
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1. A method comprising:
- receiving, during a first mode of operation, a detected power level of a power amplifier in a transceiver coupled to the power amplifier via a feedback path coupled between the power amplifier and the transceiver;
calculating, in the transceiver, a power level of the power amplifier based on the detected power level, and controlling a power output of a radio frequency (RF) signal provided by the transceiver to the power amplifier based on the calculation; and
receiving, during a second mode of operation, the detected power level in a controller of the power amplifier and controlling transmit power from the power amplifier based thereon.
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Abstract
In one embodiment, a method includes detecting a power level of a power amplifier coupled to a transceiver during a current burst of a radio communication and providing the detected power level from the power amplifier to the transceiver and controlling a power level of the power amplifier during a next burst based on the detected power level of the current burst.
42 Citations
18 Claims
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1. A method comprising:
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receiving, during a first mode of operation, a detected power level of a power amplifier in a transceiver coupled to the power amplifier via a feedback path coupled between the power amplifier and the transceiver; calculating, in the transceiver, a power level of the power amplifier based on the detected power level, and controlling a power output of a radio frequency (RF) signal provided by the transceiver to the power amplifier based on the calculation; and receiving, during a second mode of operation, the detected power level in a controller of the power amplifier and controlling transmit power from the power amplifier based thereon. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A transceiver comprising:
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an interface to receive transmit power control information from a baseband processor; a controller coupled to the interface to receive the transmit power control information and to determine parameter information for a first burst of a data transmission based on the transmit power control information, wherein the controller is to receive, in a first mode of operation, power sample information from a power amplifier coupled to the transceiver and determine the parameter information further based on the received power sample information to control transmit power of the power amplifier; circuitry to receive a baseband signal from the baseband processor, modulate the baseband signal, upconvert the modulated baseband signal to an intermediate frequency (IF) signal, and upconvert the IF signal to a radio frequency (RF) signal; and a controllable amplifier controlled by the parameter information to output the RF signal from the transceiver to the power amplifier at a desired power level, wherein in a second mode of operation, the power amplifier is to the control the transmit power. - View Dependent Claims (9, 10, 11, 12)
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13. An article comprising a machine-readable medium including instructions that enable a system to:
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receive, in a first mode of operation, a detected power level of a first communication burst from a power amplifier (PA) in a transceiver coupled to the PA via a feedback path coupled between the PA and the transceiver; determine, in the transceiver, a power level update for a second communication burst based at least in part on the detected power level of the first communication burst; provide the second communication burst to the PA from the transceiver responsive to the power level update in the first mode of operation; and receive, during a second mode of operation, a detected power level of a third communication blast in a controller of the power amplifier and control transmit power from the power amplifier based thereon. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification