Invention Application
- Patent Title: PRE-DISTORTION IN A WIRELESS TRANSMITTER
- Patent Title (中): 无线发射机中的预失真
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Application No.: PCT/US2014/065453Application Date: 2014-11-13
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Publication No.: WO2015073670A1Publication Date: 2015-05-21
- Inventor: ASURI, Bhushan Shanti , MARRA, Thomas Domenick , FARAZIAN, Mohammad , SAHOTA, Gurkanwal Singh
- Applicant: QUALCOMM INCORPORATED
- Applicant Address: ATTN: International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714 US
- Assignee: QUALCOMM INCORPORATED
- Current Assignee: QUALCOMM INCORPORATED
- Current Assignee Address: ATTN: International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714 US
- Agency: GELFOUND, Craig A. et al.
- Priority: US14/083,240 20131118
- Main IPC: H04L27/36
- IPC: H04L27/36
Abstract:
Exemplary embodiments are related to digital pre-distortion in envelope tracking systems. A device may include an amplitude modulation-to-phase modulation (AM-PM) distortion unit configured to generate an AM-PM distortion component in response to receipt of phase data of an input transmit signal. The device may also include a local oscillator (LO) path coupled to the distortion unit and configured to convey a local oscillator (LO) signal that varies based on the AM-PM distortion component.
Information query
