Invention Grant
- Patent Title: System and method for synchronization, power control, calibration, and modulation in communication transmitters
- Patent Title (中): 通信发射机的同步，功率控制，校准和调制的系统和方法
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Application No.: US12048013Application Date: 2008-03-13
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Publication No.: US07869543B2Publication Date: 2011-01-11
- Inventor: Ajit Kumar Reddy , Qing Li , Walid Khairy Mohamed Ahmed
- Applicant: Ajit Kumar Reddy , Qing Li , Walid Khairy Mohamed Ahmed
- Applicant Address: US NV Las Vegas
- Assignee: Pine Valley Investments, Inc.
- Current Assignee: Pine Valley Investments, Inc.
- Current Assignee Address: US NV Las Vegas
- Agency: Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- Main IPC: H04K1/02
- IPC: H04K1/02 ; H04B1/04 ; H04L25/49
Abstract:
A system is provided for processing a communication signal including a baseband amplitude component and a baseband phase component. The system includes an amplitude predictor configured for closed-loop pre-distortion of a baseband amplitude component, an amplitude lookup table configured for open-loop pre-distortion of the baseband amplitude component, and an amplitude interpolator configured to build up the amplitude lookup table during a closed-loop calibration period. The system also includes a phase predictor configured for closed-loop pre-distortion of a baseband phase component, a phase lookup table configured for open-loop pre-distortion of the baseband phase component, and a phase interpolator configured to build up the phase lookup table during a closed-loop calibration period.
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