US 12,278,720 B2
Transmit spur detection and mitigation for wireless communications devices
Suprojit Mukherjee, Nadia (IN); and Ayush Sood, Bengaluru (IN)
Assigned to Cypress Semiconductor Corporation, San Jose, CA (US)
Filed by Cypress Semiconductor Corporation, San Jose, CA (US)
Filed on Oct. 19, 2023, as Appl. No. 18/490,605.
Application 18/490,605 is a continuation of application No. 17/951,626, filed on Sep. 23, 2022, granted, now 11,804,993.
Application 17/951,626 is a continuation of application No. 17/032,991, filed on Sep. 25, 2020, granted, now 11,456,901, issued on Sep. 27, 2022.
Prior Publication US 2024/0113921 A1, Apr. 4, 2024
Int. Cl. H04L 25/03 (2006.01); H04L 25/497 (2006.01)
CPC H04L 25/0328 (2013.01) [H04L 25/03292 (2013.01); H04L 25/03299 (2013.01); H04L 25/03305 (2013.01); H04L 25/497 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
beginning transmission of a portion of a data packet from a baseband layer of a wireless communications device;
determining an estimated magnitude and an estimated phase for each of a plurality of portions of the data packet stored as a plurality of bins;
generating a spur canceling signal based on a spur signal at identified spur frequencies of a frequency band used for the transmission, the generating being further based on the estimated magnitude and the estimated phase for the plurality of portions of the data packet;
subtracting the spur canceling signal from the transmission of the portion of the data packet; and
generating a transmitted signal based on the subtracting such that the spur canceling signal is subtracted during the transmission of the portion of the data packet.