Invention Grant
- Patent Title: Selective peak power reduction
- Patent Title (中): 选择性峰值功率降低
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Application No.: US13620743Application Date: 2012-09-15
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Publication No.: US08670502B2Publication Date: 2014-03-11
- Inventor: Bradley John Morris , Arthur Thomas Gerald Fuller
- Applicant: Bradley John Morris , Arthur Thomas Gerald Fuller
- Applicant Address: CA Ontario
- Assignee: BlackBerry Limited
- Current Assignee: BlackBerry Limited
- Current Assignee Address: CA Ontario
- Main IPC: H04K1/02
- IPC: H04K1/02

Abstract:
A communication system comprising signal processing circuitry and up-conversion circuitry. The signal processing circuitry is configured to: i) generate a first signal of a first modulation type and a second signal of a second modulation type; ii) combine the first and second signals to form a combined input signal; iii) generate peak reduction distortion based on the combined input signal; iv) select a portion of the peak reduction distortion that corresponds to a first frequency band; and v) apply the selected portion of the peak reduction distortion in the first frequency band of the combined input signal to provide a combined output signal. The up-conversion circuitry up-converts the combined output signal to an RF signal for transmission.
Public/Granted literature
- US20130010894A1 Selective Peak Power Reduction Public/Granted day:2013-01-10
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