Patent ID: 9231733
Filing Date: 2016-01-05
CPC Classification: H03F,H04L

Claim Text:
1. A method for updating multi-frequency band pre-distortion coefficient lookup table, comprising: collecting a first frequency band reference signal and a first frequency band feedback signal, and a second frequency band reference signal and a second frequency band feedback signal; calculating a first frequency band pre-distortion coefficient and a second frequency band pre-distortion coefficient, according to the first frequency band reference signal and the first frequency band feedback signal, and the second frequency band reference signal and the second frequency band feedback signal; performing phase calibration on the first frequency band pre-distortion coefficient and the second frequency band pre-distortion coefficient, respectively; updating a first lookup table according to the first frequency band pre-distortion coefficient performed the phase calibration, and updating a second lookup table according to the second frequency band pre-distortion coefficient performed the phase calibration; wherein, the first lookup table is a first frequency band pre-distortion coefficient lookup table, and the second lookup table is a second frequency band pre-distortion coefficient lookup table.