公开(公告)号：US09955354B2

公开(公告)日：2018-04-24

申请号：US15686984

申请日：2017-08-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ki-Hyun Do ,  Jin-Young Oh ,  Tu Nguyen ,  Yong-Duk Cho

IPC: H04W12/10 ,  H04L29/06 ,  H04W12/08 ,  H04W76/06

CPC classification number: H04W12/10 ,  H04L63/102 ,  H04L63/123 ,  H04W12/08 ,  H04W76/30

Abstract: Disclosed is a method for controlling a security mode by a user equipment (UE) in a wireless communication system, including performing a camp-on process and a cell update process with a network when an out-of-service (OOS) situation has occurred, receiving one of a signaling connection release (SCR) message and a first protocol data unit (PDU) which corresponds to the SCR message from the network, receiving a security mode command (SMC) message from the network if the SCR message is received, performing an integrity process on the SCR message using an old security configuration, and performing a rollback process to discard a new security configuration included in the SMC message if a result of the integrity process result an integrity check success, and updating a security configuration to the old security configuration.

公开(公告)号：US09913140B2

公开(公告)日：2018-03-06

申请号：US15205550

申请日：2016-07-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sunny Chang ,  Tu Nguyen

IPC: H04M1/66 ,  H04W12/06 ,  H04W48/20

CPC classification number: H04W12/06 ,  H04W48/20

Abstract: Methods and apparatuses are provided for controlling a user equipment (UE) in a mobile communication system is provided. A first security mode command message for security authentication of the UE is received from a first base station (BS). It is determined whether a cell reselection event between the UE and a second BS is generated before the security authentication with the first BS is completed. The UE is controlled so that security states of the UE and the second BS match, when the cell reselection event is generated before the security authentication with the first BS is completed.

公开(公告)号：US09749868B2

公开(公告)日：2017-08-29

申请号：US14953945

申请日：2015-11-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ki-Hyun Do ,  Jin-Young Oh ,  Tu Nguyen ,  Yong-Duk Cho

IPC: H04W12/08 ,  H04W12/06 ,  H04W12/00 ,  H04W12/10 ,  H04W76/06 ,  H04L29/06

CPC classification number: H04W12/10 ,  H04L63/102 ,  H04L63/123 ,  H04W12/08 ,  H04W76/30

Abstract: Disclosed is a method for controlling a security mode by a user equipment (UE) in a wireless communication system, including performing a camp-on process and a cell update process with a network when an out-of-service (OOS) situation has occurred, receiving one of a signaling connection release (SCR) message and a first protocol data unit (PDU) which corresponds to the SCR message from the network, receiving a security mode command (SMC) message from the network if the SCR message is received, performing an integrity process on the SCR message using an old security configuration, and performing a rollback process to discard a new security configuration included in the SMC message if a result of the integrity process result an integrity check success, and updating a security configuration to the old security configuration.