公开(公告)号：US20220248278A1

公开(公告)日：2022-08-04

申请号：US17629629

申请日：2020-07-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bin HUANG ,  Hai LIAN ,  Li SHEN ,  Bao ZHANG ,  Fengguang QIU

IPC: H04W36/00 ,  H04W8/18

Abstract: This application provides a communication method and a terminal device. The terminal device includes a radio frequency transmit channel, a first SIM card interface, and a second SIM card interface. A method performed by the terminal device can include, when the terminal device needs to perform a first voice service, disconnecting the terminal device from the 5G network, and connecting the terminal device to a first LTE network by using the first SIM card. The method can also include performing the first voice service through the first LTE network, and receiving a first connection request from a second LTE network, where the first connection request is used to request the terminal device to perform a second voice service, and the second voice service is related to the second SIM card. Furthermore, the method can include responding to the first connection request by occupying the radio frequency transmit channel in a time division manner in a process of performing the first voice service.