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:
Mar. 18, 2025
Filed:
Nov. 04, 2019
Apple Inc., Cupertino, CA (US);
Fangli Xu, Beijing, CN;
Chunhai Yao, Beijing, CN;
Clive E. Rodgers, Palo Alto, CA (US);
Dawei Zhang, Saratoga, CA (US);
Haijing Hu, Los Gatos, CA (US);
Haitong Sun, Cupertino, CA (US);
Wei Zeng, Saratoga, CA (US);
Yuqin Chen, Beijing, CN;
Yushu Zhang, Beijing, CN;
Zhibin Wu, Los Altos, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
A user equipment (UE) is connected to a wireless network and operates in a carrier aggregation (CA) state that includes a first connection to a primary cell and a second connection to a secondary cell. The UE determines a beam failure has occurred for one of the first connection or the second connection and initiates a beam failure recovery (BFR) operation. The BFR operation includes transmitting, to the primary cell, a BFR Medium Access Control (MAC) Control Element (CE).