公开(公告)号：US12052799B2

公开(公告)日：2024-07-30

申请号：US17538233

申请日：2021-11-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyungwon Lee ,  Sanghyun Lee ,  Songkyu Kim ,  Minseok Shin ,  Inhye Yeom ,  Jungmin Oh

IPC: H04W88/06 ,  H04L65/1016 ,  H04L65/1104 ,  H04W8/18 ,  H04W8/24 ,  H04W72/044

CPC classification number: H04W88/06 ,  H04L65/1016 ,  H04L65/1104 ,  H04W8/183 ,  H04W8/24 ,  H04W72/044

Abstract: A user equipment (UE) is provided. The UE includes a first subscriber identity module (SIM) configured to correspond to a first cellular network, a second SIM configured to correspond to a second cellular network, a wireless communication circuit, and a processor configured to determine a SIM to be used for Internet data communication among the first SIM and the second SIM as the first SIM, perform a connection process for Internet data communication and internet protocol (IP) multimedia subsystem (IMS) communication for a voice call with the first cellular network using first identification information about the first SIM, perform a connection process for the IMS communication with the second cellular network using second identification information about the second SIM, configure a parameter for the UE to support a narrow bandwidth for the second cellular network in UE capability information and transmit the UE capability information to the second cellular network.