Samsung patents method to reduce signal noise in full-duplex communication
Samsung describes a technique for full-duplex communication systems that allows devices to send and receive data on the same frequency at the same time. The method uses a mathematical process called principal component regression to identify and subtract the device's own outgoing signal from the incoming data, effectively removing self-interference.
In the filing’s own words
A method of self-interference cancellation in a full duplex communication system is provided. The method includes: generating a kernel matrix comprising basis functions representative of self-interference produced by a transmit signal of the full duplex communication system; performing principal component regression (PCR) based on the kernel matrix for self-interference estimation; selecting a subset of principal components based on a metric related to a reconstruction error of a received signal; estimating a coefficient vector using the subset of principal components to generate an estimate of the self-interference; and cancelling the self-interference from the received signal based on the self-interference estimate.
What exactly they claim (claim 1)
1. A method of self-interference cancellation in a full duplex communication system, the method comprising: generating a kernel matrix comprising basis functions representative of self-interference produced by a transmit signal of the full duplex communication system; performing principal component regression (PCR) based on the kernel matrix for self-interference estimation; selecting a subset of principal components based on a metric related to a reconstruction error of a received signal; estimating a coefficient vector using the subset of principal components to generate an estimate of the self-interference; and cancelling the self-interference from the received signal based on the self-interference estimate.
Facts
- Company
- Samsung (Samsung Electronics Co., Ltd.)
- Official title
- METHODS AND SYSTEMS FOR SELF-INTERFERENCE CANCELLATION IN FULL-DUPLEX COMMUNICATION
- Publication number
- US20260332375A1
- Application number
- 19369686
- Filed
- Oct 27, 2025
- Published
- Oct 22, 2026
- Inventors
- 4
- Claims
- 20
Classified under
H04L 5/1461 Electricity & electronicsH04B 7/0634 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.