公开(公告)号：US20240340641A1

公开(公告)日：2024-10-10

申请号：US18627557

申请日：2024-04-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hongjin CHOI ,  Taehyung LIM ,  Seungri JIN ,  June HWANG

IPC: H04W12/041 ,  H04W12/106 ,  H04W76/20

CPC classification number: H04W12/041 ,  H04W12/106 ,  H04W76/20

Abstract: The disclosure relates to a 5G or 6G communication system supporting a higher data transmission rate. A method and an apparatus for managing keys by a UE in dual connectivity in a wireless communication system. A method performed by a MN in a wireless communication system includes generating a first key for a first SN based on a first SN counter and a second key for a second SN based on a second SN counter; transmitting, to the first SN, a first request message including the first key for the first SN; transmitting, to the second SN, a second request message including the second key for the second SN; and transmitting, to a UE, an RRC connection reconfiguration message including the first SN counter and the second SN counter.

公开(公告)号：US20240244427A1

公开(公告)日：2024-07-18

申请号：US18409029

申请日：2024-01-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hongjin CHOI ,  Junhyun PARK

IPC: H04W12/0431 ,  H04W12/06 ,  H04W48/16

CPC classification number: H04W12/0431 ,  H04W12/06 ,  H04W48/16

Abstract: The disclosure relates to a fifth generation (5G) or sixth generation (6G) communication system for supporting a higher data transmission rate. A method performed by a user equipment (UE) in a communication system is provided. The method includes receiving, from an access and mobility management function (AMF), a non-access stratum (NAS) security mode command message including information on a public key of an authentication and key management for applications (AKMA) anchor function (AAnF), encrypting, based on the public key, a combination of an AKMA temporary identifier (A-TID) and an application function identifier (AF_ID) of an application function (AF), and transmitting, to the AF, an application session establishment request including information on the encrypted combination of the A-TID and the AF_ID.

公开(公告)号：US20240155337A1

公开(公告)日：2024-05-09

申请号：US18501215

申请日：2023-11-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kiran Gurudev KAPALE ,  Arunprasath RAMAMOORTHY ,  Hongjin CHOI

IPC: H04W12/04 ,  H04L9/40 ,  H04W12/08

CPC classification number: H04W12/04 ,  H04L63/20 ,  H04W12/08

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method and a first mission critical (MC) server are provided for managing security domain access information of migrated users in a private communication in MC services. A first MC server receives a private call request from an MC service user of a first UE for establishing the private communication with an MC service user of a second UE. It is determined whether the MC service user of the second UE is migrated from the first MC server to at least one secondary MC server. A private call redirection message is generated, and the private call redirection message is transmitted to the MC service user of the first UE to establish the private communication with the MC service user of the second UE based on the private call redirection message.

公开(公告)号：US20240040377A1

公开(公告)日：2024-02-01

申请号：US18361187

申请日：2023-07-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hongjin CHOI ,  Duckey LEE

IPC: H04W12/0431 ,  H04W76/10 ,  H04W48/08 ,  H04L9/14 ,  H04L9/30 ,  H04W12/106

CPC classification number: H04W12/0431 ,  H04W76/10 ,  H04W48/08 ,  H04L9/14 ,  H04L9/30 ,  H04W12/106

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Methods and devices in a wireless communication system are provided. System information is received from a base station. The system information includes information related to a public key of a base station. It is determined whether the public key corresponding to the information related to the public key is stored in the terminal. In case that the public key is stored in the terminal and the system information includes signature information of the base station, a signature of the base station is verified. The base station is connected to or another base station is searched for, based on whether the signature of the base station is verified.

公开(公告)号：US20230388789A1

公开(公告)日：2023-11-30

申请号：US18324908

申请日：2023-05-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hongjin CHOI ,  Duckey LEE

IPC: H04W12/041 ,  H04W12/069

CPC classification number: H04W12/041 ,  H04W12/069

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method of a first terminal in a wireless communication system is provided. The method comprising: generating an AGK for an adhoc group; transmitting an adhoc group communication request message including a list including IDs of a plurality of second terminals included in the adhoc group and connected to the first server; receiving an adhoc group communication return message signed by the first server; performing an encryption and signing operation on the AGK based on first authentication information related to the first terminal and the second authentication information; transmitting an adhoc group communication security material request message including the AGK that is encrypted and signed; receiving an adhoc group communication response message in response to transmitting the adhoc group communication security material request message; and performing a secure communication.