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:
May. 19, 2026
Filed:
Mar. 31, 2023
T-mobile Usa, Inc., Bellevue, WA (US);
Muhammad Tawhidur Rahman, Bellevue, WA (US);
T-Mobile USA, Inc., Bellevue, WA (US);
Abstract
Solutions for improved network core handling of dual stack internet protocol (IP), such as IPv4v6, include receiving, by a first wireless network node, from a user equipment (UE), a request for a packet data session, the request identifying a dual stack IP type having a first IP type and a second IP type; based on at least the first IP type of the dual stack IP type not matching a supported IP type of a second wireless network node, receiving, by the first wireless network node, from the second wireless network node, a deregistration request for the UE; and transmitting, by the first wireless network node, to the UE, a message that triggers the UE to request a new packet data session without exiting the current radio access technology (RAT). In some examples, the first network node comprises an access mobility function (AMF) or a mobility management entity (MME).