Samsung patents method to improve wireless signal timing and frequency accuracy
This patent describes a method for wireless devices to better align their signal reception with the transmitter. It uses a specific reference signal to correct for timing errors and frequency shifts caused by the wireless channel.
In the filing’s own words
A method of performing synchronization and frequency offset estimation for an input signal includes receiving an input signal through a wireless channel, and performing a frequency compensation operation on the input signal based on a reference signal to generate a compensated input signal. The reference signal corresponds to an access code associated with the input signal. The method includes determining a synchronization timing and a frequency offset for the input signal by comparing the reference signal with the compensated input signal.
What exactly they claim (claim 1)
1. A method of performing synchronization and frequency offset estimation for an input signal, the method comprising: receiving an input signal through a wireless channel; performing a frequency compensation operation on the input signal based on a reference signal to generate a compensated input signal, the reference signal corresponding to an access code associated with the input signal; calculating a symbol error of the input signal by comparing reference signal with the compensated input signal; and determining a synchronization timing and a frequency offset for the input signal based on the symbol error of the input signal.
Facts
- Company
- Samsung (Samsung Electronics Co., Ltd.)
- Official title
- Method of performing synchronization and frequency offset estimation using ISI considered reference signal and receiver performing the same
- Patent number
- US12764687B2
- Application number
- 18532219
- Filed
- Dec 7, 2023
- Granted
- Oct 13, 2026
- Inventors
- 2
- Claims
- 20
Classified under
H04W 56/0015 Electricity & electronicsH04L 5/0051 Electricity & electronicsH04L 27/2017 Electricity & electronicsH04W 56/0035 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.