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1. (WO2018080642) APPARATUS AND METHOD OF IMPROVING VOLTE/VT CALL SETUP SUCCESSFUL RATE IN A DSDS DEVICE

Pub. No.:    WO/2018/080642    International Application No.:    PCT/US2017/050484
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Fri Sep 08 01:59:59 CEST 2017
IPC: H04W 8/18
H04W 68/12
H04W 88/06
Applicants: QUALCOMM INCORPORATED
Inventors: SHI, Yongsheng
ZHAO, Suli
AGRAWAL, Mona
CHEN, Qingxin
SHAHIDI, Reza
PATTANAYAK, Uttam
Title: APPARATUS AND METHOD OF IMPROVING VOLTE/VT CALL SETUP SUCCESSFUL RATE IN A DSDS DEVICE
Abstract:
A method for call setup for a voice-over-long-term evolution (VoLTE) call on multi-subscriber identity module (SIM) multi-standby (MSMS) mobile communication device includes: receiving a long-term evolution (LTE) page; determining whether a WiFi connection is available; in response to determining that the WiFi connection is not available, determining whether the LTE page was received on a non-dedicated data subscription (DDS) subscription; and in response to determining that the LTE page was received on the non-DDS subscription, granting a highest priority for communication activities to an LTE page response on the non-DDS subscription.