Invention Grant
- Patent Title: Systems and methods for frequency domain local oscillator frequency offset compensation
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Application No.: US18082089Application Date: 2022-12-15
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Publication No.: US11863361B1Publication Date: 2024-01-02
- Inventor: Meng Qiu , Xuefeng Tang , Ahmed Mohamed Medra , Hossein Najafi , Ali Bakhshali
- Applicant: HUAWEI TECHNOLOGIES CO., LTD.
- Applicant Address: CN Guangdong
- Assignee: HUAWEI TECHNOLOGIES CO., LTD.
- Current Assignee: HUAWEI TECHNOLOGIES CO., LTD.
- Current Assignee Address: CN Shenzhen
- Agency: BCF LLP
- Main IPC: H04B1/00
- IPC: H04B1/00 ; H04L27/12 ; H04L27/152

Abstract:
The disclosed systems and methods for frequency domain (FD) local oscillator frequency offset (LOFO) compensation. The method comprising: i) compensating, by an integer Fast Fourier Transform (FFT) bins-based oscillator, LOFO in a received signal by an integer number of FFT bins; and ii) compensating, by a fractional FFT bins-based oscillator, LOFO in the compensated signal by the integer FFT bins-based oscillator with a fine compensation resolution of a fractional number of FFT bins.
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