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. 17, 2026
Filed:
Apr. 04, 2023
T-mobile Usa, Inc., Bellevue, WA (US);
Kameswaran Arunachalam, Redmond, WA (US);
Praveen Singaram Muthukumar, Lawrenceville, NJ (US);
Kunal Prakash Barawkar, Bothell, WA (US);
T-Mobile USA, Inc., Bellevue, WA (US);
Abstract
System and methods for selecting a session management function (SMF) for establishing a communications session for a user device based on the user device's protocol data network (PDN) type are described herein. An access management function (AMF) may query a network function (NF) repository function (NRF) for SMFs that serve an area associated with the user device. The AMF may select an SMF from those indicated by the NRF and determine whether the SMF can support the user device's PDN-Type and/or whether the SMF is included in a block list associated with that PDN-Type. If the SMF appears to support the user device's PDN-Type, the AMF attempts to establish a session for the user device. If that fails, the AMF adds the SMF to a block list for the user device's PDN-Type. Otherwise, the AMF provided session data to the user device's gNodeB for exchanging user data.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile