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US 11,689,408 B2Granted
Dynamic trigger compensation in OFDM systems
AssigneeSirius XM Radio Inc.
InventorsEdward Schell, Carl Scarpa
Life of this patent
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Abstract
Systems and methods for enabling pre-compensation of timing offsets in OFDM receivers without invalidating channel estimates are described. Timing offset estimations may be sent along with the received OFDM symbols for FFT computation and generating a de-rotated signal output. The timing offset estimation may provide a reference point for dynamic tracking of timing for an OFDM signal and estimated based on an integral value associated with the OFDM signal.
Claims10
A system for multi-carrier receiving, the system comprising:
- a receiver, wherein the receiver receives a frequency modulated signal;
- at least one processor;
- and
- a memory containing instructions that, when executed, cause the at least one processor to:
- determine a timing reference point associated with the frequency modulated signal;
- determine a timing offset based on the timing reference point;
- and
- generate a demodulated signal based on applying a compliment of the timing offset to a set of samples of the frequency modulated signal after conversion into the frequency domain.
5 more elements
Dependencies are inferred from the claim text.