公开(公告)号：US20200275279A1

公开(公告)日：2020-08-27

申请号：US16803828

申请日：2020-02-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Narendranath Durga TANGUDU ,  Rajavelsamy RAJADURAI

IPC: H04W12/12 ,  H04W12/06 ,  H04W12/08 ,  H04L29/06 ,  H04W8/06

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). Methods, network entities, and systems for mitigating Denial of Service (DoS) attack in a wireless network (e.g., access network (AN), core network (CN)). Embodiments herein disclose methods and systems for mitigating Denial of Service (DOS) attacks in wireless networks, by performing admission control by verifying a User Equipment's (UE's) registration request via a Closed Access Group (CAG) cell without performing a primary authentication. Embodiments herein disclose methods and system for verifying permissions of the UE to access a CAG cell based on the UE's Subscription identifier, before performing the primary authentication. Methods and systems for mitigating Denial of Service (DoS) attack in a wireless network. A method for mitigating Denial of Service (DOS) attacks in wireless networks includes requesting a public land mobile network (PLMN) for accessing a non-public network (NPN) through a Closed Access Group (CAG) cell, verifying the permissions of a user equipment (UE) to access the requested NPN through the CAG cell, and performing a primary authentication.

公开(公告)号：US20200236532A1

公开(公告)日：2020-07-23

申请号：US16646971

申请日：2018-09-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Rajavelsamy RAJADURAI ,  Pratyush PUSHKAR ,  Mallikarjuna HAMPALI ,  Duckey LEE

IPC: H04W8/20 ,  H04W8/28 ,  H04W8/18 ,  H04W12/00 ,  H04W4/50 ,  H04W4/60 ,  H04W60/06

Abstract: The present invention discloses a system and method of preforming integrated mobile number portability (MNP) and remote SIM provisioning (RSP). The method includes: receiving, by a recipient BSS, a subscription request comprising an MNP request indicator from a user equipment; requesting, by the recipient BSS, the subscription request to a recipient Subscription Manager-Data Preparation (SM-DP) to initiate the RSP, creating, by the recipient SM-DP, a recipient MNO profile comprising a recipient MSISDN upon confirmation receipt of the Download Order by the recipient BSS, registering, by the recipient SM-DP, an MNP event in a Subscription Manager-discovery Server (SM-DS) to initiate the MNP, retrieving, by the UE, RSP event details from the SM-DS to execute profile download, and executing, by the UE, the MNP event and the RSP by transferring an eUICC functioning from a donor MNO profile to the recipient MNO profile at porting date and time.

公开(公告)号：US20200221281A1

公开(公告)日：2020-07-09

申请号：US16632079

申请日：2018-07-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Rajavelsamy RAJADURAI ,  Lalith KUMAR

IPC: H04W8/06 ,  H04W12/04 ,  H04W76/30

Abstract: Accordingly, embodiments herein provide a system for managing anti-steering of roaming in a wireless communication network. The system includes a HPLMN, a VPLMN and a UE. The HPLMN obtains a register request message from the VPLMN and IN derives at least one HPLMN specific security key based on at least one security parameter. Further, the HPLMN protects a preferred PLMN list using the at least one HPLMN specific security key and the security parameter and sends the protected preferred PLMN list to the VPLMN along with necessary security information. Further, the VPLMN is configured to receive the protected preferred PLMN list from the HPLMN and send a message including the protected preferred PLMN list to the UE. The message mandates the VPLMN to send the preferred PLMN list transparently to the UE. Further, the UE is configured to receive the message including the preferred PLMN list from the VPLMN.

公开(公告)号：US20190387398A1

公开(公告)日：2019-12-19

申请号：US16481324

申请日：2018-01-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Rajavelsamy RAJADURAI ,  Nishant GUPTA

IPC: H04W12/00 ,  H04L9/08 ,  H04L29/06 ,  H04W12/10

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 method and system for end-to-end security over signaling plane in a mission critical data (MCData) communication system. The proposed method includes various ways of securing MCData data payload transmitted over signaling plane using short data service (SDS). The proposed method allows usage of multiple security keys to encrypt the MCData SDS message as per the requirements. Various Keys such as, signaling plane key or media plane key or a dedicated MCData data payload signaling key can be used independently or in a combination thereof to achieve the desired security context. The proposed method allows protection of all the application level components with the signaling plane security context.

公开(公告)号：US20170257791A1

公开(公告)日：2017-09-07

申请号：US15600145

申请日：2017-05-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Rajavelsamy RAJADURAI ,  Satish Nanjunda Swamy JAMADAGNI

IPC: H04W28/02 ,  H04W12/08 ,  H04W48/02 ,  H04L12/859

CPC classification number: H04W28/0289 ,  H04L47/2475 ,  H04W4/00 ,  H04W12/08 ,  H04W28/0205 ,  H04W28/0215 ,  H04W48/02

Abstract: A method and system that enhances the existing access barring mechanism as specified in the current 3GPP specification is disclosed. The method disclosed provides enhancing the access barring mechanism to accommodate application level barring between the User equipment (UE) and the network. The method disclosed individually restricts or permits access of network to every requesting application on the UE, based on granular category of the application and priority levels of the application within the granular category. The method disclosed also specifies handling of back-off timers; reject cause values and Access Point Name (APN) configuration by Access Stratum (AS) and Non Access Stratum (NAS) layer to support application level barring of UEs using the enhanced access barring mechanism. The enhanced access barring mechanism enables providing service to applications independent of other barred applications or priorities. The method disclosed provides a mechanism for access control for connected mode UEs.

公开(公告)号：US20250016670A1

公开(公告)日：2025-01-09

申请号：US18886720

申请日：2024-09-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kundan TIWARI ,  Rajavelsamy RAJADURAI ,  Hoyeon LEE

IPC: H04W48/18 ,  H04W8/02 ,  H04W36/06 ,  H04W48/16 ,  H04W60/04 ,  H04W76/11

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). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Embodiments disclose a method and system for handling a network slice specific authentication and authorization (NSSAA) process in a wireless network system.

公开(公告)号：US20240163665A1

公开(公告)日：2024-05-16

申请号：US18282430

申请日：2022-03-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ashok Kumar NAYAK ,  Rajavelsamy RAJADURAI ,  Varini GUPTA ,  Hoyeon LEE

IPC: H04W12/06 ,  H04L9/40 ,  H04W12/088

CPC classification number: H04W12/06 ,  H04L63/0892 ,  H04W12/088

Abstract: A method for performing a Network Slice Specific Authentication Authorization (NSSAA) procedure for a network slice is disclosed. The method includes performing, by a Network Slice Specific Authentication and Authorization Function (NSSAAF), an NSSAA procedure through a first Access and Mobility Management Function (AMF) selected amongst the first AMF and a second AMF. The method includes determining, by the NSSAAF whether the NS SAA procedure through the first AMF is successful or not. The method includes performing by the NSSAAF, one of skipping the NSSAA procedure for the second AMF in response to determining that the NSSAA procedure is successful for the first AMF transmitting a message to the second AMF for deleting Network Slice Selection Assistance Information (NSSAI) related to the network slice from an allowed list of network slices in response to determining that the NSSAA procedure is unsuccessful for the first AMF.

公开(公告)号：US20230354037A1

公开(公告)日：2023-11-02

申请号：US18017002

申请日：2021-07-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： R ROHINI ,  Nivedya PARAMBATH SASI ,  Rajavelsamy RAJADURAI

IPC: H04W12/63 ,  H04W4/02 ,  H04W12/08 ,  H04W12/06 ,  H04W12/0431

CPC classification number: H04W12/63 ,  H04W4/02 ,  H04W12/08 ,  H04W12/06 ,  H04W12/0431 ,  H04W88/04

Abstract: Methods and systems for identifying AUSF and accessing related keys in 5G ProSe. The AUSF corresponding to a remote UE is identified by an AMF based on routing indicator or SKI. The AUSF is capable of key management of ProSe UE-to-Network relay communication. The AUSF authorizes the remote UE to access a 5G core network through one or more UE-to-network relays. The authorization of the remote UE is performed based on a SUPI corresponding to the remote UE. The SUPI is obtained from a UDM. Once the remote UE is authorized, the AUSF can derive keys that enable the remote UE to access the 5G core network through the one or more UE-to-network relays. The keys derived by the AUSF 803 can be referred to as authentication keys. The derived keys include REAR key, KNR_ProSe, KD, and KNRP.

公开(公告)号：US20230328688A1

公开(公告)日：2023-10-12

申请号：US18012800

申请日：2021-07-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lalith KUMAR ,  Kundan TIWARI ,  Rajavelsamy RAJADURAI ,  Varini GUPTA

IPC: H04W68/02 ,  H04W60/00

CPC classification number: H04W68/02 ,  H04W60/00

Abstract: Embodiments herein provide a method and a wireless network device (100) for handing a paging cause of a service. The method includes receiving, by the wireless network device (100), a NAS message includes the paging cause of the service provided by the wireless network device (100) and a first value corresponding to the paging cause from a UE (200). The method includes modifying, by the wireless network device (100), the first value of the paging cause of the service to a second value, and sending a NAS response message to the UE (200), where the NAS response message includes the paging cause of the service and the second value of the paging cause. The second value enables the UE (200) to respond to a paging message based on the second value of the paging cause.

公开(公告)号：US20230300613A1

公开(公告)日：2023-09-21

申请号：US18017222

申请日：2021-07-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Rohini RAJENDRAN ,  Rajavelsamy RAJADURAI ,  Nivedya Parambath SASI

IPC: H04W12/06 ,  H04W12/0431 ,  H04W12/041

CPC classification number: H04W12/06 ,  H04W12/0431 ,  H04W12/041

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 disclose methods for establishing secure communication in a wireless communication network (3000) by an AUSF entity (400). The method includes receiving a key request message from a remote UE (100a) through an AMF entity (500). Further, the method includes acquiring one of the SUPI of the remote UE (100a) and a REAR ID associated with the SUPI of the remote UE (100a). Further, the method includes generating a rear key for remote UE (100a) communication via a UE-to-network relay. The REAR key is used for deriving a first ProSe key. Further, the method includes sending a key response message to the remote UE (100a) for establishing secure communication, where the key response message includes the generated REAR key, the REAR ID and at least one of a relay UE ID and a temporary ID of a relay.