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    METHOD AND SYSTEM FOR OPTIMIZING AKMA KEY REFRESH MECHANISM IN WIRELESS NETWORK
    21.
    发明申请
    METHOD AND SYSTEM FOR OPTIMIZING AKMA KEY REFRESH MECHANISM IN WIRELESS NETWORK 有权

    公开(公告)号：US20240397317A1

    公开(公告)日：2024-11-28

    申请号：US18794590

    申请日：2024-08-05

    Applicant: Samsung Electronics Co., Ltd.

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

    IPC: H04W12/06 ,  H04W12/0433 ,  H04W12/37

    Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). A method performed by a user equipment (UE) in a wireless network, the method comprising: establishing a communication with an application function (AF) server using a first authentication and key management for applications (AKMA) application key (KAF); receiving a message over the established communication from the AF server, the message indicating that a lifetime of the first KAF has expired; and configuring a back-off flag in the UE to optimize an AKMA key refresh mechanism in the wireless network in response to receiving the message, wherein the back-off flag prevents a request for a first AKMA anchor key (KAKMA) until a fresh primary authentication is performed.

    APPARATUS AND METHOD FOR COMMUNICATION ESTABLISHMENT IN AUTHENTICATION AND KEY MANAGEMENT FOR APPLICATIONS (AKMA)
    23.
    发明公开
    APPARATUS AND METHOD FOR COMMUNICATION ESTABLISHMENT IN AUTHENTICATION AND KEY MANAGEMENT FOR APPLICATIONS (AKMA) 审中-公开

    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.

    METHODS AND SYSTEMS FOR RESTRICTED SERVICE ACCESS BETWEEN NETWORK FUNCTIONS IN WIRELESS NETWORK
    24.
    发明公开
    METHODS AND SYSTEMS FOR RESTRICTED SERVICE ACCESS BETWEEN NETWORK FUNCTIONS IN WIRELESS NETWORK 审中-公开

    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.

    A METHOD FOR MANAGING AN AUTHENTICATION AND KEY MANAGEMENT FOR APPLICATIONS SERVICE FOR A USER EQUIPMENT
    26.
    发明公开
    A METHOD FOR MANAGING AN AUTHENTICATION AND KEY MANAGEMENT FOR APPLICATIONS SERVICE FOR A USER EQUIPMENT 审中-公开

    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.

    APPARATUS AND METHOD FOR VERIFYING AUTHENTICITY OF A BACKHAUL-RADIO LINK FAILURE
    28.
    发明申请
    APPARATUS AND METHOD FOR VERIFYING AUTHENTICITY OF A BACKHAUL-RADIO LINK FAILURE 有权

    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.

    SYSTEM AND METHOD FOR LIMITING A SCOPE OF AUTHORIZATION PROVIDED TO NFC DEVICE
    29.
    发明申请
    SYSTEM AND METHOD FOR LIMITING A SCOPE OF AUTHORIZATION PROVIDED TO NFC DEVICE 有权

    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.

    METHOD AND APPARATUS FOR MULTI-USIM OPERATIONS
    30.
    发明申请
    METHOD AND APPARATUS FOR MULTI-USIM OPERATIONS 有权

    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.

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