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:
Aug. 12, 2025
Filed:
Jul. 28, 2022
T-mobile Usa, Inc., Bellevue, WA (US);
Muhammad Tawhidur Rahman, Bellevue, WA (US);
T-Mobile USA, Inc., Bellevue, WA (US);
Abstract
Systems, methods, and devices that relate to geo-location determination of roaming Wi-Fi calling are disclosed. In one example aspect, a method for wireless communication includes transmitting, by a first network element in a home network, a message to a second network element indicating an establishment of a roaming voice session using a non-cellular network access technology. The message includes an Internet Protocol (IP) address allocated to a terminal device. The method also includes determining, by the first network element in the home network, a geographical location of the roaming voice session based on the IP address allocated to the terminal device.