Invention Grant
- Patent Title: Methods and systems for calibrating a frequency-division duplexing transceiver
- Patent Title (中): 用于校准频分双工收发器的方法和系统
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Application No.: US13747339Application Date: 2013-01-22
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Publication No.: US08908575B2Publication Date: 2014-12-09
- Inventor: Masoud Zargari , Shahram Abdollahi-Alibeik
- 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: H04L5/14
- IPC: H04L5/14 ; H04B1/50 ; H04B17/00
Abstract:
A frequency-division duplexing (FDD) transceiver includes a first mixer to up-convert a transmit signal and a first switch, coupled to the first mixer, to selectively provide a transmit local oscillator signal or a receive local oscillator signal to the first mixer. The transmit local oscillator signal has a first frequency and the receive local oscillator signal has a second frequency distinct from the first frequency. The FDD transceiver also includes a second mixer to down-convert a receive signal and a second switch, coupled to the second mixer, to selectively provide the transmit local oscillator signal or the receive local oscillator signal to the second mixer.
Public/Granted literature
- US20130272175A1 METHODS AND SYSTEMS FOR CALIBRATING A FREQUENCY-DIVISION DUPLEXING TRANSCEIVER Public/Granted day:2013-10-17
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