Invention Grant
- Patent Title: Dynamic-range reduction of complex-valued baseband signals
- Patent Title (中): 复值基带信号的动态范围减小
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Application No.: US14329563Application Date: 2014-07-11
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Publication No.: US09172574B1Publication Date: 2015-10-27
- Inventor: Peter Zillmann , Christoph Arnold Joetten , Christian Pietsch
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Mahamedi Paradice LLP
- Main IPC: H04K1/02
- IPC: H04K1/02 ; H04L27/26 ; H04L27/36
Abstract:
To reduce the peak-to-average power ratio (PAPR) of a complex-valued digital baseband signal, the signal is mixed to an intermediate frequency and its real components extracted, to generate an intermediate-frequency real-valued digital signal. The intermediate frequency is one-quarter of a sampling rate of the complex-valued digital baseband signal. The intermediate-frequency real-valued digital signal is clipped and down-converted by one-quarter of the sampling rate.
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