OFDM Channel Estimation Using FMCW Signals for Wireless Communication
Summary
USPTO published patent application US20260100864A1 for methods and systems enabling wireless devices to estimate orthogonal frequency division multiplexing (OFDM) channels using frequency modulated continuous waveform (FMCW) signals. The invention describes techniques for receiving, generating, combining, filtering, and sampling FMCW signals to estimate frequency domain OFDM channels for wireless communication.
What changed
USPTO published patent application US20260100864A1 for OFDM channel estimation using FMCW signals. The patent covers methods where a first wireless device receives a first FMCW signal from a second device, generates a second FMCW signal based on FMCW parameters, combines and filters the signals, samples in time domain, and estimates the frequency domain OFDM channel for communication.
For manufacturers of wireless communication devices and telecommunications equipment, this patent represents potential intellectual property considerations for OFDM channel estimation technology. Companies developing wireless devices using FMCW signals for channel estimation may need to review this patent for licensing implications or design-around considerations.
What to do next
- Monitor patent portfolio for competitive intelligence
- Review implementation freedom for wireless communication products
Archived snapshot
Apr 14, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
ESTIMATING ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING CHANNELS USING FREQUENCY MODULATED CONTINUOUS WAVEFORMS
Application US20260100864A1 Kind: A1 Apr 09, 2026
Inventors
Kangqi LIU, Jing JIANG, Jing DAI, Weimin DUAN, Roberto RIMINI, Seyedkianoush HOSSEINI
Abstract
Methods, systems, and devices for wireless communication are described. A first wireless device may receive, from a second wireless device, a first frequency modulated continuous waveform (FMCW) signal via an orthogonal frequency division multiplexing (OFDM) channel. The first wireless device may generate a second FMCW signal based on a set of FMCW parameters associated with the first FMCW signal. The first wireless device may combine the first and second FMCW signals and filter the combined FMCW signal. The first wireless device may sample the combined and filtered FMCW signal in a time domain. The first wireless device may estimate the frequency domain OFDM channel based on sampling the combined and filtered FMCW signal. The first and second wireless devices may communicate OFDM signals via the OFDM channel based on the estimation of the frequency domain OFDM channel.
CPC Classifications
H04L 25/0202 H04L 5/0053 H04L 27/0014 H04L 27/2649 H04L 2027/0091
Filing Date
2022-12-05
Application No.
19115656
Named provisions
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