Invention Grant
- Patent Title: OFDM speed estimation
- Patent Title (中): OFDM速度估计
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Application No.: US13782888Application Date: 2013-03-01
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Publication No.: US09100278B2Publication Date: 2015-08-04
- Inventor: Stephen J. Beauregard
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: Qualcomm Incorporated
- Current Assignee: Qualcomm Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Kilpatrick Townsend & Stockton LLP
- Main IPC: H04L12/26
- IPC: H04L12/26 ; H04W64/00 ; G01S5/02 ; G01S11/10 ; H04L27/26
Abstract:
Techniques are provided for deriving speed estimates by performing a convolution of the output of the Fast Fourier Transform (FFT) stage from different time windows in an orthogonal frequency-division multiplexing (OFDM) modulation scheme. Such techniques enable speed estimation to be performed in the frequency domain, requiring little or no modification to existing OFDM systems.
Public/Granted literature
- US20140050257A1 OFDM Speed Estimation Public/Granted day:2014-02-20
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