Patent · US Active

Voice rat selection in multi-SIM devices

US10219132B2 · kind B2 · utility

0Cited by

1References

26Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Ashutosh Gupta · Noida, IN
Amandeep Singh Bedi · Hyderabad, IN
Rajendra Prasad Katakam · Hyderabad, IN
Ankit Banaudha · Hyderabad, IN
Harinath Reddy Patel · Hyderabad, IN

Key dates

Filing date	May 9, 2017
Grant date	Feb 26, 2019
Priority date	—
Expiry date	May 10, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH04W4/80
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Apparatuses and methods for a wireless communication device having multiple Subscriber Identity Modules (SIMs) in which a first SIM is associated with an Internet Protocol (IP) Multimedia Subsystem (IMS) subscription used for IMS services. The method includes but not limited to, attaching the IMS subscription to a first cell of a packet-switched cellular network, determining a cause of IMS voice service being not currently available at the IMS subscription, determining availability of a wireless local area network (WLAN) connection at the IMS subscription, and providing voice service at the IMS subscription based on the cause of IMS voice service being not currently available and the availability of the WLAN connection at the IMS subscription.

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