Samsung patents method to decode wireless signals using linear approximations
Samsung describes a device component that processes incoming wireless signals to recover the original data. It works by breaking the signal into smaller sections and using simple straight-line math to estimate the bits, rather than complex calculations.
In the filing’s own words
An apparatus for transmitting and receiving signal may include a transceiver configured to receive a reception signal through a channel and demodulate the reception signal into a reception symbol and a channel estimation value corresponding to the reception signal, and a demapper configured to detect a modulation type of the reception signal, calculate a first status data based on a first value obtained by zero-forcing the reception symbol and a second value obtained by squaring the channel estimation value, calculate a second status data based on the second value, and estimate bit information with respect to the reception symbol based on the modulation type, the first status data, and the second status data.
What exactly they claim (claim 1)
1. An apparatus for transmitting and receiving signal, the apparatus comprising: a transceiver configured to receive a reception signal through a channel and demodulate the reception signal into a reception symbol and a channel estimation value corresponding to the reception signal; and a demapper configured to: detect a modulation type of the reception signal, calculate a first status data based on a first value obtained by zero-forcing the reception symbol and a second value obtained by squaring the channel estimation value, calculate a second status data based on the second value, and estimate bit information with respect to the reception symbol based on the modulation type, the first status data, and the second status data, wherein: the bit information comprises a log likelihood ratio (LLR) signal of n bits, the LLR signal comprises a plurality of first bits representing a real part and a plurality of second bits representing an imaginary part, and the demapper comprises an LLR calculator configured to determine the LLR signal by using a piecewise linear function representing the reception symbol as a plurality of linear functions by dividing the reception symbol into a plurality of sections and approximating each of the plurality of sections by a linear function.
Facts
- Company
- Samsung (Samsung Electronics Co., Ltd.)
- Official title
- Apparatus for transmitting and receiving signal
- Patent number
- US12750161B2
- Application number
- 18661632
- Filed
- May 12, 2024
- Granted
- Sep 29, 2026
- Inventors
- 3
- Claims
- 18
Classified under
H04L 1/0045 Electricity & electronicsH03M 13/3927 Electricity & electronicsH04L 25/0258 Electricity & electronicsH04L 27/38 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.