Samsung patents signal timing fix for wireless devices
Samsung has patented a method for wireless devices to correct timing errors in received signals. The device compares the incoming signal with a known reference signal to calculate a correction factor, adjusting the estimated arrival time of the first signal path.
In the filing’s own words
A first wireless communication apparatus includes: a transceiver configured to: receive a radio frequency (RF) signal via a channel from a second wireless communication apparatus, and downconvert the RF signal to generate a received signal that has a lower frequency than a frequency of the RF signal; and a processing circuit configured to: compare the received signal with a reference signal to generate a compensation index based on a comparison result, and compensate an initial first arrival path (FAP) time index of the received signal based on the compensation index to generate a final FAP time index.
What exactly they claim (claim 1)
1. A first wireless communication apparatus comprising: a transceiver configured to: receive a radio frequency (RF) signal via a channel from a second wireless communication apparatus, and downconvert the RF signal to generate a received signal that has a lower frequency than a frequency of the RF signal; and a processing circuit configured to: compare the received signal with a reference signal to generate a compensation index based on a comparison result, and compensate an initial first arrival path (FAP) time index of the received signal based on the compensation index to generate a final FAP time index, wherein the processing circuit is configured to generate the compensation index based on differences between powers of the received signal and powers of the reference signal at target time indexes selected based on the initial FAP time index, and wherein the reference signal is received via a reference channel comprising a single path.
Facts
- Company
- Samsung (SAMSUNG ELECTRONICS CO., LTD.)
- Official title
- Wireless communication device and operating method for performing an operation of compensating for a first arrival path (FAP) time index by using a reference signal
- Patent number
- US12771389B2
- Application number
- 18397760
- Filed
- Dec 27, 2023
- Granted
- Oct 20, 2026
- Inventors
- 3
- Claims
- 17
Classified under
H04B 1/12 Electricity & electronicsH04B 1/0096 Electricity & electronicsH04B 1/1607 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.