公开(公告)号：US20230284087A1

公开(公告)日：2023-09-07

申请号：US18317559

申请日：2023-05-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sang Soo JEONG ,  Song Yean CHO ,  Young Kyo BAEK ,  Sung Hwan WON ,  Han Na LIM

IPC: H04W28/02 ,  H04W80/04 ,  H04W36/00 ,  H04W36/12 ,  H04W76/34 ,  H04W76/18 ,  H04W76/50 ,  H04W8/06 ,  H04W8/08 ,  H04W8/02

CPC classification number: H04W28/0289 ,  H04W80/04 ,  H04W36/0079 ,  H04W36/12 ,  H04W76/34 ,  H04W76/18 ,  H04W76/50 ,  H04W8/065 ,  H04W8/082 ,  H04W36/0055 ,  H04W8/02

Abstract: In a user equipment of a wireless communication system, a method for signal transmission and reception may include: sending a request for a Circuit Switched voice network (CS) service to a Gateway Mobile Switching Center (GMSC) to send and receive data to and from a second user equipment; and receiving a call reject response corresponding to the service request from the GMSC, wherein the call reject response is sent by an entity in a core network of the second user equipment. According to an embodiment, it is possible to provide a suitable service to a sender terminal making a CS service request to a receiver terminal having subscribed only to a PS service without increasing network load.

公开(公告)号：US20190387431A1

公开(公告)日：2019-12-19

申请号：US16557741

申请日：2019-08-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sang Soo JEONG ,  Song Yean CHO ,  Young Kyo BAEK ,  Sung Hwan WON ,  Han Na LIM

IPC: H04W28/02 ,  H04W76/18 ,  H04W8/02 ,  H04W8/06 ,  H04W8/08 ,  H04W36/00 ,  H04W36/12 ,  H04W80/04 ,  H04W76/50

Abstract: In a user equipment of a wireless communication system, a method for signal transmission and reception may include: sending a request for a Circuit Switched voice network (CS) service to a Gateway Mobile Switching Center (GMSC) to send and receive data to and from a second user equipment; and receiving a call reject response corresponding to the service request from the GMSC, wherein the call reject response is sent by an entity in a core network of the second user equipment. According to an embodiment, it is possible to provide a suitable service to a sender terminal making a CS service request to a receiver terminal having subscribed only to a PS service without increasing network load.

公开(公告)号：US20160037473A1

公开(公告)日：2016-02-04

申请号：US14879034

申请日：2015-10-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Song Yean CHO ,  Han Na LIM ,  Chae Gwon LIM ,  Sung Ho CHOI ,  Beom Sik BAE

IPC: H04W60/02 ,  H04W76/02 ,  H04W8/18

CPC classification number: H04W60/02 ,  H04W4/70 ,  H04W8/06 ,  H04W8/18 ,  H04W28/24 ,  H04W60/00 ,  H04W60/04 ,  H04W76/18

Abstract: The present invention relates to a wireless communication system and method for establishing connection between a User Equipment (UE) and a Mobility Management Entity (MME) in the wireless communication system in which the data-centric terminal requests the mobility management entity for attachment and checks, when the mobility management entity responds, data-centric features supported by the mobility management entity. According to the present invention, it is possible to connect the data-centric terminal to the mobility management entity supporting the data-centric features of the corresponding data-centric terminal efficiently in the wireless communication system.

公开(公告)号：US20150281935A1

公开(公告)日：2015-10-01

申请号：US14738111

申请日：2015-06-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung Joo SUH ,  Song Yean CHO ,  Beom Sik BAE ,  Han Na LIM

IPC: H04W4/22 ,  H04W76/00 ,  H04W60/04

CPC classification number: H04W4/22 ,  H04M2242/04 ,  H04W4/90 ,  H04W60/04 ,  H04W76/10 ,  H04W76/50 ,  H04W88/005 ,  H04W88/02

Abstract: The present invention relates to a method and a system for managing an emergency call between a terminal and a network by using a non-access stratum protocol in a mobile communication network. A method for providing an emergency call service by a terminal in accordance with one embodiment of the present invention comprises the steps of: enabling the terminal to transmit an access request message including an emergency call identifier to a mobility management entity; enabling the terminal to attempt to authenticate the mobility management entity after the step of transmitting the access request message; enabling the terminal to receive an access grant message including the emergency call identifier from the mobility management entity; and enabling the terminal which receives the access grant message, to provide an emergency call service through the mobility management entity. According to one embodiment of the present invention, the emergency call is enabled.