US 12,294,534 B2
Frequency selective phase tracking reference signal (PTRS) allocation
Ahmed Abdelaziz Ibrahim Abdelaziz Zewail, San Diego, CA (US); Zhifei Fan, San Diego, CA (US); Xiaoxia Zhang, San Diego, CA (US); Tao Luo, San Diego, CA (US); Jing Sun, San Diego, CA (US); and Wooseok Nam, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Sep. 22, 2021, as Appl. No. 17/482,100.
Claims priority of provisional application 63/087,151, filed on Oct. 2, 2020.
Prior Publication US 2022/0109537 A1, Apr. 7, 2022
Int. Cl. H04L 5/00 (2006.01); H04W 72/0453 (2023.01)
CPC H04L 5/0037 (2013.01) [H04L 5/0053 (2013.01); H04W 72/0453 (2013.01)] 30 Claims
OG exemplary drawing
 
1. An apparatus for wireless communications at a user equipment (UE), comprising:
a first interface configured to:
obtain configuration information indicating frequency resources available for phase tracking reference signal (PTRS) transmissions as a quantity of PTRS tones per resource block (RB) within a set of frequency resources configured for the PTRS transmissions; and
obtain control information indicating that a first PTRS associated with a first communication is using a subset of frequency resources from the set of frequency resources configured for the PTRS transmissions, the first communication spanning the set of frequency resources configured for the PTRS transmissions; and
a processing system configured to:
select a phase noise compensation for the first communication.