US 12,035,251 B2
System and method for phase noise reduction in very high frequency spectrum
Oghenekome Oteri, San Diego, CA (US); Haitong Sun, Cupertino, CA (US); Chunhai Yao, Beijing (CN); Yushu Zhang, Beijing (CN); Dawei Zhang, Saratoga, CA (US); Chunxuan Ye, San Diego, CA (US); Weidong Yang, San Diego, CA (US); Wei Zeng, Saratoga, CA (US); and Hong He, San Jose, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/441,592
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed May 14, 2020, PCT No. PCT/CN2020/090288
§ 371(c)(1), (2) Date Sep. 21, 2021,
PCT Pub. No. WO2021/226943, PCT Pub. Date Nov. 18, 2021.
Prior Publication US 2023/0076789 A1, Mar. 9, 2023
Int. Cl. G08C 17/00 (2006.01); H04L 5/00 (2006.01); H04W 52/24 (2009.01); H04W 52/32 (2009.01); H04W 52/34 (2009.01)
CPC H04W 52/245 (2013.01) [H04L 5/0048 (2013.01); H04W 52/325 (2013.01); H04W 52/346 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method for phase noise compensation in a wireless system, comprising:
transmitting a phase tracking reference signal (PTRS) according to a first boost configuration;
measuring a power signal density of the PTRS at a first time;
determining a second boost configuration for the PTRS based, at least in part, on the measured power signal density and a maximum mean Equivalent Isotropically Radiated Power (EIRP) density, wherein determining the second boost configuration further comprises determining to use power allocated for one or more resource elements at another frequency range for the PTRS; and
transmitting the PTRS according to the second boost configuration.