Strategic predistortion function selection

Details Strategic predistortion function selection Strategic predistortion function selection

2006-12-28

2009-12-01

Nguyen, Duc M (Department: 2618)

Telecommunications

Transmitter

Noise or interference elimination

C455S126000, C455S115100, C375S296000, C375S297000, C330S149000

Reexamination Certificate

active

07627293

ABSTRACT:
A corrective predistortion function is applied to a signal to compensate for or cancel out distortion that is introduced by a component that processes the signal. A disclosed example includes applying a corrective predistortion function to a transmitted signal used for wireless communications. A technique for selecting the corrective predistortion function includes determining a current power level of the signal. When the current power level is at or below a lift level between a maximum signal power level and a minimum signal power level, a corrective predistortion function corresponding to the lift level is applied to the signal. When the actual signal power level is above the lift level, a corrective predistortion function corresponding to the actual current power level is applied.

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