US 12,382,414 B2
Compensation of uplink timing errors for non-terrestrial networks
Syed Hashim Ali Shah, San Diego, CA (US); Ayan Sengupta, San Diego, CA (US); Alberto Rico Alvarino, San Diego, CA (US); and Xiao Feng Wang, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Dec. 2, 2022, as Appl. No. 18/074,308.
Prior Publication US 2024/0188019 A1, Jun. 6, 2024
Int. Cl. H04W 56/00 (2009.01); H04L 27/26 (2006.01); H04W 84/06 (2009.01)
CPC H04W 56/005 (2013.01) [H04L 27/2601 (2013.01); H04W 84/06 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A method of wireless communication by a user equipment (UE), comprising:
modulating a symbol stream onto at least one subcarrier to generate an uplink signal in a frequency domain for transmitting to a receiver in a non-terrestrial network;
applying an amount of phase rotation to the at least one subcarrier in the frequency domain, the amount based on a fast Fourier transform (FFT) size;
transforming the uplink signal from the frequency domain into a time domain uplink signal; and
transmitting the time domain uplink signal to the receiver, after applying the phase rotation to the at least one subcarrier.