Invention Grant
- Patent Title: Enhancements of VoWi-Fi handover from ePDG to LTE when VoNR is not supported
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Application No.: US17085915Application Date: 2020-10-30
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Publication No.: US12058581B2Publication Date: 2024-08-06
- Inventor: Can Zhao , Suli Zhao , Reza Shahidi , Carlos Marcelo Dias Pazos , Kuo-Chun Lee , Arvind Vardarajan Santhanam
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: The Marbury Law Group, PLLC
- Agent Dalei Dong
- Main IPC: H04W36/14
- IPC: H04W36/14 ; H04L65/1016 ; H04M7/00 ; H04W36/30

Abstract:
Various aspects include methods for supporting handover of a Voice over Internet Protocol (IP) (VoIP) call, such as a Voice over Wi-Fi (VoWi-Fi) call, with a user equipment (UE). Various aspects may enable VoWi-Fi call handover from support via an evolved Packet Data Gateway (ePDG) to support via Long Term Evolution (LTE) when Voice over New Radio (NR) (VoNR) is not supported by a User Equipment (UE) computing device and/or a fifth generation (5G) standalone (SA) (5G SA) network in which the UE is located.
Public/Granted literature
- US20210136645A1 Enhancements of VoWi-Fi Handover From ePDG to LTE When VoNR is Not Supported Public/Granted day:2021-05-06
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