Patent ID: 11962520
Assignee: APPLE INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A wireless device comprising:
an antenna;
a radio operably coupled to the antenna; and
a processor operably coupled to the radio,
wherein the wireless device is configured to compensate for noise in a wireless system by performing operations comprising:
obtaining a physical shared channel allocation, wherein the physical shared channel allocation comprises a number of physical resource blocks (PRBs) and one or more phase tracking reference signal (PTRS) frequency bands within the PRBs, wherein the one or more PTRS frequency bands comprise one or more PTRS signals;
receiving a signal based on the physical shared channel allocation;
filtering the received signal to extract the one or more PTRS frequency bands;
processing the one or more PTRS frequency bands to obtain one or more time domain PTRS signals;
estimating a phase noise for each PTRS frequency band of the one or more time domain PTRS signals; and
applying the phase noise estimates to the received signal to create a noise-compensated signal.