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:
Jan. 20, 2026
Filed:
Aug. 14, 2020
Google Llc, Mountain View, CA (US);
Chih-Hsiang Wu, Taoyuan, TW;
GOOGLE LLC, Mountain View, CA (US);
Abstract
A security key management method can be implemented a user equipment (UE) capable of concurrent communication with a master node (MN) and a secondary node (SN). The method includes transitioning () from a connected state in which the UE communicates with the MN using a first security key and with the SN using a second security key (), to an inactive state in which a radio connection between the UE and a radio access network (RAN) is suspended. The method further includes performing a procedure for transitioning from the inactive state to the connected state, including generating a new RAN key Kcorresponding to the SN () and generating a new security key for communicating with the SN based on at least the new RAN key K().