US 11,924,009 B1
Frequency dependent residual side band correction
Ronen Shaked, Kfar Saba (IL); and Gideon Shlomo Kutz, Ramat Hasharon (IL)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Sep. 7, 2022, as Appl. No. 17/930,403.
Int. Cl. H04L 27/04 (2006.01); H04L 5/00 (2006.01); H04L 25/03 (2006.01)
CPC H04L 27/04 (2013.01) [H04L 5/0098 (2013.01); H04L 25/03006 (2013.01); H04L 2025/03815 (2013.01)] 30 Claims
OG exemplary drawing
 
1. An apparatus for wireless communication at a network node, comprising:
a memory; and
at least one processor coupled to the memory and, based at least in part on information stored in the memory, the at least one processor is configured to:
transmit a training signal for a user equipment (UE) on a plurality of sub-carriers, the training signal transmitted via multiple in-phase (I) and quadrature (Q) (IQ) modulators and multiple radio frequency (RF) antenna panels;
receive a feedback associated with a frequency dependent residual side band (FDRSB) based on the training signal; and
apply an FDRSB correction filter to at least one signal to be transmitted to the UE, the FDRSB correction filter based on the feedback received from the UE.