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:
Oct. 20, 2026
Filed:
Jul. 21, 2023
Cisco Technology, Inc., San Jose, CA (US);
Stephen M Orr, Wallkill, NY (US);
Malcolm Muir Smith, Richardson, TX (US);
Indermeet Singh Gandhi, San Jose, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
The present technology provides a mechanism for more efficient make-before-you-break roaming (MMBR) between devices in the same extended service set (ESS) that utilize a common Pairwise Master Key (PMK). Association and key management (AKM) procedures can be time-consuming, and the present technology provides for a more efficient mechanism by which the Pairwise Transient Key (PTK) can be derived in advance so that the STA can directly associate with a new AP. More specifically, the Robust Security Network Information Element (RSNIE) that is exchanged prior to key derivation and association between the STA and the AP can be enhanced to include information about the security protocols used by other APs in the extended service set (ESS), which can be used to derive respective Pairwise Transient Keys (PTKs) in advance for use with other APs.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile