The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 19, 2018
Filed:
Jan. 11, 2017
Method to remove measurement receiver counter intermodulation distortion for transmitter calibration
Futurewei Technologies, Inc., Plano, TX (US);
Futurewei Technologies, Inc., Plano, TX (US);
Abstract
A system, computer readable medium, and method are provided for calibrating a wireless transmitter. A transceiver that includes a radio frequency transmitter, a measurement receiver, and a local oscillator unit may be calibrated by adjusting the duty cycle of the radio frequency signals generated by the local oscillator unit. The method for calibrating the wireless transmitter includes the steps of collecting measurement data corresponding to a number of pre-defined duty ratio correction factors, calculating estimated optimum duty ratio correction factors based on the measurement data, and determining a final optimum duty ratio correction factor from the estimated optimum duty ratio correction factors. The pre-defined duty ratio correction factors may be selected to simplify the calculations for choosing the final optimum duty ratio correction factor. The wireless transmitter can be calibrated by configuring the local oscillator unit based on the final optimum duty ratio correction factor.