DSDS Wi-Fi calling enhancements

US11039297B1 · kind B1 · utility

Assignee

• Apple Inc. · US

Inventors

• Sweta B. Desai · San Jose, US
• Abhishek Walia · New York, US
• Ajoy K. Singh · Round Lake, US
• Bhanu Prasad Pamidi · San Jose, US
• Rohit Thareja · Pacifica, US
• Sharad Garg · San Jose, US
• Vijay Gadde · Kanchinakote, IN
• Vijendrakumar K. Ashiwal · Pittsburgh, US

Key dates

• Filing date: Feb 26, 2020
• Grant date: Jun 15, 2021
• Expiry date: Feb 26, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W84/12
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

Apparatuses, systems, and methods for enhancement of Wi-Fi calling for DSDS user equipment devices (UEs). The UE may register a first connection supported by a first SIM with IMS for VoWiFi based on a determination to prefer VoWiFi for the first SIM. The first SIM may be associated with a first subscription to a first RAN. The UE may include a second SIM that may be associated with a second subscription to a second RAN. The UE may register a second connection associated with the second SIM with the IMS for VoWiFi and/or VoLTE and initiate/receive, via the first connection supported by the first SIM, a VoWiFi call. A recommendation to handover the VoWiFi call from Wi-Fi to cellular data may be received and, based, at least in part, on the recommendation, the UE may register a second connection associated with the second SIM for IWLAN over cellular data.