公开(公告)号：US20240292212A1

公开(公告)日：2024-08-29

申请号：US18573219

申请日：2022-07-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Rajavelsamy RAJADURAI ,  Nivedya Parambath SASI ,  Rohini RAJENDRAN

IPC: H04W12/0433 ,  H04L5/00 ,  H04W12/06 ,  H04W12/106

CPC classification number: H04W12/0433 ,  H04L5/0053 ,  H04W12/06 ,  H04W12/106

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 is used to support a mechanism to address the Key synchronisation issue at a User Equipment (UE) side, an Application Function (AF) side and at an AAnF using a key index included as a part of AKMA key identifier (A-KID). Further the proposed method uses certain mechanisms to provide the refresh parameter to the AUSF, the 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.

公开(公告)号：US20230370840A1

公开(公告)日：2023-11-16

申请号：US18029514

申请日：2021-09-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Rajavelsamy RAJADURAI ,  Varini GUPTA ,  Lalith KUMAR ,  Rohini RAJENDRAN ,  Nivedya Parambath SASI ,  Danish Ehsan HASHMI

IPC: H04W12/06 ,  H04W12/0433

CPC classification number: H04W12/06 ,  H04W12/0433

Abstract: Embodiments herein provide a method for handling synchronization of Home Network (HN) security key(s) in a wireless network. The proposed method includes receiving a Non-access stratum (NAS) authentication request message from a network entity (200A), where the UE (100A) holds a first Home network (HN) security key. Further, the method includes determining an authentication response message for the received NAS authentication request message and generating a second HN security key from a plurality of input parameters received in the NAS authentication request message and sending authentication response message to the network entity (200A). Further, the method includes storing the second HN security key in response to receiving a NAS security mode command message from the network entity (200A) or ignore the second HN security key in response to receiving a NAS reject message from the network entity (200A).

公开(公告)号：US20230068196A1

公开(公告)日：2023-03-02

申请号：US17904456

申请日：2021-02-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Nivedya Parambath SASI ,  Rajavelsamy RAJADURAI ,  Rohini RAJENDRAN

IPC: H04W12/06 ,  H04W12/041 ,  H04W12/0433

Abstract: The present invention discloses a system and method of generating application specific keys using key derived from network access authentication.

公开(公告)号：US20230048891A1

公开(公告)日：2023-02-16

申请号：US17881840

申请日：2022-08-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Rajavelsamy RAJADURAI ,  Rohini RAJENDRAN ,  Nivedya Parambath SASI

IPC: H04W12/06 ,  H04W24/08 ,  H04L1/16 ,  H04W76/19 ,  H04W12/122

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments herein provide an apparatus and method for verifying authenticity of a BH-RLF. A method is provided for using a new message to verify the authenticity of the BH-RLF. A method is provided for using existing and/or message over an F1AP and an RRC to verify the authenticity of the BH-RLF. A method is provided for using a hash based procedure for protection of the BH-RLF indication. A method is provided for generating a unique secret key at an parent IAB node and a child IAB node to protect the BAP control messages. Further, a method is provided for re-using ICMP ping messages to check the destination availability based on a received BH-RLF indication.

公开(公告)号：US20220353802A1

公开(公告)日：2022-11-03

申请号：US17729537

申请日：2022-04-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Varini GUPTA ,  Rohini RAJENDRAN ,  Rajavelsamy RAJADURAI ,  Ashok Kumar NAYAK ,  Nivedya Parambath SASI

IPC: H04W48/18 ,  H04W48/16 ,  H04W60/04

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method for limiting a scope of authorization provided to a network function service consumer (NFC) device in a wireless network by a network repository function (NRF) server is provided. The method includes receiving an NF-registration request message from a network function producer (NFP) device. The NF-registration request message includes at least one of a set of the first information element indicating a single-network slice selection assistance information (S-NSSAI) of the NFC device allowed to access by the NFP device, a corresponding second information element indicating operations allowed on resources of the NFP device belonging to a S-NSSAI of the NFP device, and a third information element indicating a trust-level of the NFC device.

公开(公告)号：US20220132456A1

公开(公告)日：2022-04-28

申请号：US17478650

申请日：2021-09-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Rajavelsamy RAJADURAI ,  Rohini RAJENDRAN ,  Lalith KUMAR ,  Varini GUPTA ,  Nivedya Parambath SASI

IPC: H04W60/00 ,  H04W8/02 ,  H04W8/18 ,  H04W76/30

Abstract: A method performed by a user equipment (UE) in a wireless communication system comprises: identifying whether the UE supports and intends to use at least one multi-universal subscriber identity module (USIM) feature; transmitting, to an access and mobility management function (AMF) entity, a registration request message including information of multi-USIM features supported by the UE, in a case that the at least one multi-USIM feature being supported and intended to use by the UE is identified; receiving, from a base station (BS), a registration accept message including an indication of multi-USIM features for the UE based on the registration request message, and wherein the indication of multi-USIM features for the UE is identified by the AMF based on network information and the information of multi-USIM features; and identifying at least one multi-USIM feature indicated as supported for the UE by the AMF based on the registration accept message.