公开(公告)号：US20240323679A1

公开(公告)日：2024-09-26

申请号：US18577645

申请日：2022-07-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Rajavelsamy RAJADURAI ,  Nivedya Parambath SASI ,  Rajendran ROHINI

IPC: H04W12/041 ,  H04W12/06

CPC classification number: H04W12/041 ,  H04W12/06

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments herein provide a system and method for key refresh in Authentication and Key Management for Applications (AKMA). The proposed method is to support KAKMA refresh by requesting the refreshing parameters from the network once the KAF is about to expire. Further, the proposed method is to support KAF refresh by requesting the refreshing parameters from the network once the KAF is about to expire. Further the proposed method uses certain mechanisms to provide the refresh parameter to the AUSF, AAnF and the UE as a part of AKMA Refresh procedure or as a part of UPU procedure. Further, the proposed method supports AKMA key refresh with limited impacts on AKMA services in 5G system. Furthermore, the proposed method is used to support a mechanism to address the Key synchronisation issue at a User Equipment (UE) side, AF and at the network side.

公开(公告)号：US20240314561A1

公开(公告)日：2024-09-19

申请号：US18271595

申请日：2022-01-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Rajendran ROHINI ,  Nivedya Parambath SASI ,  Rajavelsamy RAJADURAI

IPC: H04W12/069 ,  H04W12/084

CPC classification number: H04W12/069 ,  H04W12/084

Abstract: The present disclosure relates to a pre-5th generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th generation (4G) communication system such as long term evolution (LTE). Embodiments herein provide a method of authentication and authorization between a MSGin5G server and a MSGin5G client, the method comprising: receiving, by a MSGin5G interworking function, a pre-shared key request from one of a SEAL server and a MSGin5G Server; deriving, by the MSGin5G interworking function a pre-shared key KMSG-PSK in response to the pre-shared key request; sending, by the MSGin5G interworking function, the pre-shared key KMSG-PSK to one of the SEAL server and the MSGin5G Server; deriving, by a MSGin5G client, the pre-shared key upon receiving either before or after service provisioning procedure; and establishing a TLS session using the pre-shared key KMSG-PSK derived by the MSGin5 interworking function and the MSGin5G client.

公开(公告)号：US20240121610A1

公开(公告)日：2024-04-11

申请号：US18276191

申请日：2022-02-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Rajavelsamy RAJADURAI ,  Rajendran ROHINI ,  Varini GUPTA ,  Nivedya Parambath SASI

IPC: H04W12/084

CPC classification number: H04W12/084

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments herein disclose a method for providing restricted service access in a wireless network by a first network entity (i.e., target AMF entity (400)). The method includes requesting a NRF entity (600) to grant an access-token to access a second network entity (i.e., initial AMF entity (300)). Further, the method includes receiving a message comprising a restricted service access to the second network entity based on the access-token. Further, the method includes sending a restricted UE context transfer request to the second network entity based on the message comprising the restricted service access. Further, the method includes receiving a UE context transfer response from the second network entity based on the restricted UE context transfer request.

公开(公告)号：US20230292112A1

公开(公告)日：2023-09-14

申请号：US18017008

申请日：2021-07-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Varini GUPTA ,  Rajavelsamy RAJADURAI ,  Lalith KUMAR ,  Kundan TIWARI ,  Rajendran ROHINI ,  Nivedya Parambath SASI

IPC: H04W12/04

CPC classification number: H04W12/04

Abstract: The present disclosure realtes to a pre-5th generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as long term evolution (LTE). In an embodiment, a method, for managing an Authentication and Key Management for Applications (AKMA) service for a User Equipment (UE) in a communication system is disclosed. The method includes determining, by a network function, that the UE is not allowed to utilize the AKMA service, in response to detecting at least one condition associated with the UE. The method includes transmitting, by the network function, a request to an AKMA Anchor Function (AAnF) for deleting an AKMA context corresponding to the UE from a memory associated with the AAnF. The method includes deleting, by the AAnF, the AKMA context corresponding to the UE from the memory.