Invention Grant
US08824981B2 Recalibration of envelope tracking transfer function during active transmission
有权
主动传输过程中包络跟踪传递函数的重新校准
- Patent Title: Recalibration of envelope tracking transfer function during active transmission
- Patent Title (中): 主动传输过程中包络跟踪传递函数的重新校准
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Application No.: US13755569Application Date: 2013-01-31
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Publication No.: US08824981B2Publication Date: 2014-09-02
- Inventor: Andreas Langer , Gunther Kraut , Berndt Pilgram
- Applicant: Intel Mobile Communications GmbH
- Applicant Address: DE Neubiberg
- Assignee: Intel Mobile Communications GmbH
- Current Assignee: Intel Mobile Communications GmbH
- Current Assignee Address: DE Neubiberg
- Agency: Eschweiler & Associates, LLC
- Main IPC: H04B1/04
- IPC: H04B1/04 ; H03G1/00 ; H03F1/02 ; H03F1/32
Abstract:
An envelope tracking system and a method for adjusting a nonlinear transfer function of an envelope tracking power supply for a power amplifier are provided. An output signal of the power amplifier is provided to a feedback receiver for determining an actual performance of the envelope tracking power amplifier. An assumed performance of the envelope tracking power amplifier is determined by evaluating the non-linear transfer function at a value defined by an input signal for a transmitter including the power amplifier. A difference between the assumed performance and the actual performance provides a correctional value for the nonlinear transfer function.
Public/Granted literature
- US20140213196A1 RECALIBRATION OF ENVELOPE TRACKING TRANSFER FUNCTION DURING ACTIVE TRANSMISSION Public/Granted day:2014-07-31
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