Back to results
US 11,310,085 B2Granted
LoRa advanced receiver
AssigneeSemtech Corporation
InventorsOlivier Bernard André Seller, Christophe Jean Jacques Devaucelle
Life of this patent
Estimating the term…
Abstract
A LoRa receiver for processing digital chirp spread-spectrum modulated signals with an advanced module for the determination of the timing error and/or of the frequency error arranged to estimate a position of a frequency discontinuity in each symbol, extract one or more frequency-continuous fragments out of each symbol, dechirp the coherent fragments, determine a timing error, and/or a frequency error, and/or a modulation value, and/or a SNR.
Claims9
Radio receiver device comprising:
- a signal processor configured to process digital chirp spread-spectrum modulated signals that comprise a plurality of symbols constituted by frequency chirps that are cyclically time-shifted replicas of a base chirp profile, said time-shifts being an encoded representation of a transmitted message, wherein the signal processor is further configured to estimate a position of a frequency discontinuity in each symbol, extract one or more frequency-continuous fragments out of each symbol, dechirp the frequency-continuous fragments, determine a timing error, and/or a modulation value, and/or a SNR.
Dependencies are inferred from the claim text.