公开(公告)号：US20190261299A1

公开(公告)日：2019-08-22

申请号：US16398081

申请日：2019-04-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiwu Liu ,  Xinzhu Wang ,  Guanggang Lin

IPC: H04W60/00 ,  H04W12/08 ,  H04W12/06 ,  H04W12/00

Abstract: Embodiments of the present application disclose a dual-card dual-active communication method. A terminal includes a radio frequency circuit, a first modem and a second modem. The first modem includes a first IMS module, and the second modem includes a second IMS module. The method includes: sending, by the first IMS module, a first access request to a first gateway on a network side via the first modem and the radio frequency circuit, to request to access a first IMS network on the network side; and when the first IMS module stably camps on the first IMS network via the first gateway, sending, by the second IMS module, a second access request to a second gateway on the network side via the first modem and the radio frequency circuit, to request to access a second IMS network on the network side.