Automatic transmit power control loop with modulation averaging
AssigneeSiemens Information and Communication Mobile, LLC
InventorAntoine J. Rouphael
Life of this patent
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AssigneeSiemens Information and Communication Mobile, LLC
InventorAntoine J. Rouphael
Estimating the term…
A telecommunications device includes an improved transmit power control loop. The transmit power control loop receives an output power measurement from a power amplifier (316) at a transmitter output. The transmit power control loop also averages and samples an input power. The sampled power is provided to a calibration table (405), which produces a corresponding corrected instantaneous output power. The instantaneous output power is then compared with the sampled output power. A difference between the instantaneous output power and the measured output power is the summed with the averaged power to provide a correction figure, used to adjust the set power. A running sum filter (416) may be used to filter the resulting corrected power signal. The resulting average power adjustment is then used to adjust the gain of various power amplifiers (304, 312, 316) in the transmit path.
A system, comprising:
A method for use in a telecommunications transmitter, comprising:
A radio transmitter system, comprising:
A method, comprising:
A power control loop adapted to receive a coupler measurement of a power level at a power amplifier, said power control loop including a sampler to sample power and further including a power adjustment unit adapted to adjust a power level based on a sampler output of power at an output of one or more transmit filters and said coupler measurement.
Dependencies are inferred from the claim text.