US 12,463,787 B2
SRS signaling in 5G new radio wireless communications
Haitong Sun, Cupertino, CA (US); Dawei Zhang, Saratoga, CA (US); Hong He, San Jose, CA (US); Oghenekome Oteri, San Diego, CA (US); Seyed Ali Akbar Fakoorian, San Diego, CA (US); Wei Zeng, Saratoga, CA (US); Weidong Yang, San Diego, CA (US); and Yushu Zhang, Beijing (CN)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Aug. 3, 2022, as Appl. No. 17/817,090.
Application 17/817,090 is a continuation of application No. 17/593,799, granted, now 12,081,495, previously published as PCT/CN2021/110878, filed on Aug. 5, 2021.
Prior Publication US 2023/0045052 A1, Feb. 9, 2023
Int. Cl. H04L 5/00 (2006.01); H04L 27/26 (2006.01)
CPC H04L 5/0094 (2013.01) [H04L 5/0048 (2013.01); H04L 5/0051 (2013.01); H04L 27/2605 (2013.01); H04L 27/2607 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A processor of a base station configured to perform operations comprising:
determining a resource block (RB)-level partial frequency sounding (RPFS) configuration, comprising:
a configured subband size;
an RPFS factor to be applied to the configured subband size;
a reduced subband size based on the configured subband size and the RPFS factor; and
a resulting sounding reference signal (SRS) sequence length based on 12/Pf*KTCmSRS,BSRS where Pf is the RPFS factor, KTC is a comb size, mSRS,BSTS is the configured subband size and 12 is a number of resource elements in a physical resource block (PRB); and generating, for transmission, the RPFS configuration to a user equipment (UE).