Patent · US Active

Transparent session migration between user plane functions

US11490318B2 · kind B2 · utility

0Cited by

0References

20Claims

0Family size

Assignee

T-Mobile USA, Inc. · US

Inventors

Suliman Albasheir · Delta, CA
Boris Antsev · Bothell, US
Christopher H. Joul · Bellevue, US
Rahul Pal · Kanchinakote, IN
Suresh Thanneeru · Redmond, US
Karunakalage Viraj Rakitha Silva · Renton, US
Salvador Mendoza · Issaquah, US
Rushabhkumar Patel · Newcastle, US

Key dates

Filing date	Oct 13, 2020
Grant date	Nov 1, 2022
Priority date	—
Expiry date	Oct 13, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH04W76/12
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Systems, devices, and techniques described herein relate to migrating a communication session from a path including a stressed user plane function (UPF) to a path including a replacement UPF. A communication session may traverse a first path including the first UPF. After establishing the communication session, the first UPF may be determined to be stressed. In response, the communication session can be proactively migrated to a second path including a second UPF. According to various implementations, the existing communication session can be maintained during the migration, thereby substantially eliminating interruptions caused by the stressed first UPF.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.