公开(公告)号：US20150282012A1

公开(公告)日：2015-10-01

申请号：US14662883

申请日：2015-03-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sunggi BAEK ,  Jiyeon Lee ,  Jonghwa Choi ,  Dongwoo Kim ,  Jinhong Seol ,  Changhwan Lee ,  Yonggil Han

IPC: H04W36/00 ,  H04W4/16 ,  H04L29/06

CPC classification number: H04W36/0022 ,  H04L65/1006 ,  H04L65/1016 ,  H04L65/1069 ,  H04L65/1076 ,  H04L65/1096 ,  H04W4/16

Abstract: A method of providing call services for an electronic device is provided. The method may include receiving a call request from the user; determining whether the call request is a request for a call via an Internet Protocol (IP) Multimedia System (IMS) network; making, when it is determined that the call request is a request for a call via an IMS network, an attempt to set up the call via the IMS network; determining whether the attempt for the call setup via the IMS network is successful; and performing Circuit Switched Fallback (CSFB) when it is determined that the attempt for the call setup via the IMS network is unsuccessful.

Abstract translation: 提供了一种为电子设备提供呼叫服务的方法。 该方法可以包括从用户接收呼叫请求; 确定所述呼叫请求是否是经由因特网协议（IP）多媒体系统（IMS）网络的呼叫请求; 当确定呼叫请求是经由IMS网络进行呼叫的请求时，尝试通过IMS网络建立呼叫; 确定通过IMS网络建立呼叫的尝试是否成功; 并且当确定通过IMS网络建立呼叫的尝试不成功时执行电路交换回退（CSFB）。

公开(公告)号：US20190281604A1

公开(公告)日：2019-09-12

申请号：US16296542

申请日：2019-03-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kwanghee KIM ,  Jiyeon LEE ,  Sunggi BAEK ,  Jongphil LEE ,  Gwangho LEE ,  Changhun LEE ,  Janghoon LEE

IPC: H04W72/04 ,  H04W72/12

Abstract: An electronic device including a communication circuitry, a processor, and a memory is provided. The processor of the electronic device receives a user equipment (UE) capability enquiry that includes information indicating the number of carrier aggregation (CA) combinations associated with a network from the network using the communication circuitry and determines UE capability information based on at least one of the number of default CA combinations of the electronic device, the number of CA combinations of a region associated with the network, the number of CA combinations of a country associated with the network, the number of CA combinations corresponding to a supported frequency band of a mobile network operator (MNO) associated with the network, and the number of CA combinations associated with the network.