Samsung patents method to clean up WiFi data for sensing
Samsung has been granted a patent for a method that prepares raw WiFi data for sensing tasks. The system identifies and corrects errors in the signal caused by hardware flaws or timing issues, and filters out unwanted noise or outliers before the data is used.
In the filing’s own words
Methods and apparatuses for WiFi CSI preprocessing for sensing applications are provided. A method of wireless communication performed by a STA comprises: receiving a sequence of frames; obtaining a CSI set, comprising the CSI for each of the frames; determining one or more variations in the CSI set caused by at least one of a device impairment, a synchronization issue, or an unintended signal; performing a preprocessing procedure configured to: correct one or more errors in gain and phase of each CSI of the CSI set caused by at least one of the device impairment or the synchronization issue, and filter at least one variation caused by the unintended signal; and identifying at least one of an outlier or a variation in CSI set that affects a sensing task, and performing at least one preprocessing operation configured to filter the outlier or the variation in CSI set.
What exactly they claim (claim 1)
1. A method of wireless communication performed by a station (STA), the method comprising: receiving a sequence of frames; obtaining a channel state information (CSI) set, comprising CSI for each of the frames; determining one or more variations in the CSI set caused by at least one of a device impairment, a synchronization issue, or an unintended signal; performing a preprocessing procedure configured to: correct one or more errors in gain and phase of each CSI of the CSI set caused by at least one of the device impairment or the synchronization issue, and filter at least one variation caused by the unintended signal; and identifying at least one of an outlier or a variation in the CSI set that affects a sensing task, and performing at least one preprocessing operation configured to filter the outlier or the variation in the CSI set.
Facts
- Company
- Samsung (Samsung Electronics Co., Ltd.)
- Official title
- WiFi CSI preprocessing for sensing applications
- Patent number
- US12763838B2
- Application number
- 18429209
- Filed
- Jan 31, 2024
- Granted
- Oct 13, 2026
- Inventors
- 5
- Claims
- 20
Classified under
H04B 7/0654 Electricity & electronicsH04B 7/0626 Electricity & electronicsMore from Samsung in Networks & wireless
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.