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.

公开(公告)号：US20160014692A1

公开(公告)日：2016-01-14

申请号：US14717420

申请日：2015-05-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jong-Han KIM ,  Jeong-Gyun Yu ,  Yong-Duk Cho

IPC: H04W52/02 ,  H04W36/00 ,  H04W56/00

CPC classification number: H04W52/0216 ,  H04W48/16 ,  H04W52/0229 ,  H04W56/001 ,  Y02D70/24

Abstract: A method of reducing power consumption is provided. The method includes categorizing a plurality of cells including a serving cell into an identified cell set and a non-identified cell set based on received power of the plurality of cells, measuring received power of the plurality of cells including the serving cell based on a first measurement period during a first time interval, determining whether received power of the serving cell is greater than a predefined threshold or whether a number of cells included in the identified cell set or a configuration of the plurality of cells changes, or if one of the received power of the serving cell is greater than the predefined threshold and if the number of cells included in the identified cell set or the configuration of the plurality of cells does not change, changing the first measurement period to a second measurement period.

Abstract translation: 提供了降低功耗的方法。 该方法包括：基于多个小区的接收功率，将包括服务小区的多个小区分类为所识别的小区集和未识别的小区组，基于第一个小区测量包括服务小区的多个小区的接收功率 在第一时间间隔期间，确定服务小区的接收功率是否大于预定阈值，或者包括在所识别的小区组中的小区的数量或多个小区的配置是否发生更改，或者如果所接收的 服务小区的功率大于预定阈值，并且如果包括在所识别的小区组中的小区的数量或多个小区的配置不改变，则将第一测量周期改变为第二测量周期。

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：US09788272B2

公开(公告)日：2017-10-10

申请号：US14717420

申请日：2015-05-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jong-Han Kim ,  Jeong-Gyun Yu ,  Yong-Duk Cho

IPC: H04W52/02 ,  H04W56/00 ,  H04W48/16

CPC classification number: H04W52/0216 ,  H04W48/16 ,  H04W52/0229 ,  H04W56/001 ,  Y02D70/24

Abstract: A method of reducing power consumption is provided. The method includes categorizing a plurality of cells including a serving cell into an identified cell set and a non-identified cell set based on received power of the plurality of cells, measuring received power of the plurality of cells including the serving cell based on a first measurement period during a first time interval, determining whether received power of the serving cell is greater than a predefined threshold or whether a number of cells included in the identified cell set or a configuration of the plurality of cells changes, or if one of the received power of the serving cell is greater than the predefined threshold and if the number of cells included in the identified cell set or the configuration of the plurality of cells does not change, changing the first measurement period to a second measurement period.