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:
Nov. 12, 2024
Filed:
May. 11, 2022
Qualcomm Incorporated, San Diego, CA (US);
Dominique Francois Bressanelli, Eschborn, DE;
Osama Lotfallah, San Diego, CA (US);
Cogol Tina, Mission Viejo, CA (US);
Abhishek Bhatnagar, San Diego, CA (US);
Vitaly Drapkin, San Diego, CA (US);
Lenaig Genevieve Chaponniere, La Jolla, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Aspects disclosed herein facilitate security handling of 5GS to EPC reselection are disclosed herein. An example method at a UE includes transmitting a first TAU request, the first TAU request encoded using a first security context associated with a first RAT, the first TAU request being integrity protected using a first uplink count based on the first security context, and the first TAU request including a first set of information including an identifier mapped to a second RAT associated with the first network entity. The example method also includes transmitting a second TAU request, the second TAU request including the first set of information, the second TAU request being integrity protected using a second uplink count. The example method also includes communicating based on a mapped security context based on the first security context and at least one of the first uplink count or the second uplink count.