The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 2026
Filed:
Oct. 22, 2020
Apple Inc., Cupertino, CA (US);
Chunhai Yao, Beijing, CN;
Chunxuan Ye, San Diego, CA (US);
Dawei Zhang, Saratoga, CA (US);
Haijing Hu, Los Gatos, CA (US);
Haitong Sun, Cupertino, CA (US);
Hong He, San Jose, CA (US);
Huaning Niu, San Jose, CA (US);
Jie Cui, San Jose, CA (US);
Oghenekome Oteri, San Diego, CA (US);
Sarma V. Vangala, Campbell, CA (US);
Sigen Ye, San Diego, CA (US);
Wei Zeng, Saratoga, CA (US);
Weidong Yang, San Diego, CA (US);
Yang Tang, San Jose, CA (US);
Yushu Zhang, Beijing, CN;
Apple Inc., Cupertino, CA (US);
Abstract
Techniques discussed herein may better ensure proper timing and synchronization of transmissions within a wireless communications network that includes a terrestrial network and a non-terrestrial network (NTN). A user equipment (UE) may maintain (e.g., determine and update on an ongoing basis) a timing advance (TA) value that the UE may apply to uplink (UL) transmissions to account for propagation delays, including changes in propagation delays, between the UE, NTN, and terrestrial network. TA maintenance may be based on network broadcasts, random access channel (RACH) procedures, control messages, timing drift rates (e.g., of the UE or NTN satellite), beam switching, and more.