公开(公告)号：US20220377548A1

公开(公告)日：2022-11-24

申请号：US17766105

申请日：2020-09-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Rajavelsamy RAJADURAI ,  Kundan TIWARI ,  Anikethan Ramakrishna Vijaya KUMAR ,  Narendranath Durga TANGUDU ,  Lalith KUMAR

IPC: H04W12/065 ,  H04W8/02

Abstract: Methods and systems for controlling permissions of a UE for accessing a network. A method disclosed herein includes initiating, by a User Equipment (UE), a registration procedure with a serving network for accessing a selected network, wherein the selected network includes one of at least one CAG cell of an NPN and a VPLMN. The registration procedure indicates a network selection mode using which the UE has selected the network and the network selection mode includes one of an automatic mode and a manual mode. The method further incudes determining, by the serving network, a reject mode for rejecting the registration request of the UE based on the network selection mode indicated in the registration request, when the permissions of the UE to access the selected network have not been verified, wherein the reject mode includes a protected reject mode and an unprotected reject mode.

公开(公告)号：US20220174483A1

公开(公告)日：2022-06-02

申请号：US17605549

申请日：2020-04-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kundan TIWARI ,  Rajavelsamy RAJADURAI ,  Narendranath Durga TANGUDU

IPC: H04W12/033 ,  H04W12/06 ,  H04W48/18 ,  H04W60/00

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. Accordingly the embodiments herein provides a method and system for ciphering of initial NAS message protection procedure. A UE is registered to a first PLMN and a first 5G NAS security context has been established. The UE selects a second PLMN. The UE sends Initial Registration procedure with only cleartext IE to the second PLMN. The second PLMN may initiate and perform authentication procedure. The second PLMN initiates NAS Security mode control procedure and sends a Security Mode Command message containing the selected NAS ciphering method to the UE. The UE sends entire the Registration Request message containing both cleartext IE(s) and non-cleartext IE(s) using the NAS ciphering method sent in the Security Mode Complete message. The second PLMN send Registration Accept message.

公开(公告)号：US20220022018A1

公开(公告)日：2022-01-20

申请号：US17292491

申请日：2019-11-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lalith KUMAR ,  Arijit SEN ,  Rajavelsamy RAJADURAI

IPC: H04W4/90 ,  H04W60/04 ,  H04W12/0431

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 a method for transmitting public safety warning messages over a non-3GPP access networks. The method includes receiving, by an Access and Mobility Management Function (AMF) entity of the 3GPP system (100), at least one public safety warning message from Cell Broadcast Entity (CBE) and transmitting, by the AMF entity (160a) of the 3GPP system 3GPP system (100), at least one public safety warning message to a Non-3GPP Interworking Function (N3IWF) interface entity (180a) of the 3GPP system 3GPP system (100), where the N3IWF interface entity (180a) connects the AMF entity (160a) to the non-3GPP access network. Further, the method includes transmitting, by the N3IWF interface entity (180a) of the 3GPP system 3GPP system (100), the at least one public safety warning message to at least one User Equipment (UE) over the non-3gpp access.

公开(公告)号：US20210258793A1

公开(公告)日：2021-08-19

申请号：US17176627

申请日：2021-02-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： R ROHINI ,  Rajavelsamy RAJADURAI ,  Nivedya Parambath SASI

IPC: H04W12/37 ,  H04W4/40 ,  H04W12/50 ,  H04W76/14

Abstract: A method performed by a first terminal performing vehicle-to-everything (V2X) communication with a second terminal via one or more PC5 unicast links in a wireless communication system is provided. The method may include: receiving, from a core network entity, information on one or more security policies respectively corresponding to the one or more PC5 unicast links, wherein each of the one or more PC5 unicast links is associated with one or more V2X services; transmitting, to the second terminal, a direct communication request message including the one or more security policies for initiating the V2X communication; and in case that the transmitted direct communication request message is accepted by the second terminal, activating a security of each of the one or more PC5 unicast links based on the received information on the one or more security policies.

公开(公告)号：US20210211860A1

公开(公告)日：2021-07-08

申请号：US17163708

申请日：2021-02-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Rajavelsamy RAJADURAI ,  Lalith Kumar

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

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 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：US20210176640A1

公开(公告)日：2021-06-10

申请号：US17250574

申请日：2019-08-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Rajavelsamy RAJADURAI

IPC: H04W12/106 ,  H04W76/12

Abstract: The 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). Accordingly, embodiments herein provide a method for integrity protection of user plane (UP) signaling messages in a wireless network. The method includes receiving integrity protection data rate capability of a user equipment (UE) (300). Further, the method includes receiving a dedicated protocol data unit (PDU) session establishment request to establish the dedicated PDU session for exchange of the UP signalling messages. Further, the method includes establishing the dedicated PDU session with integrity protection based on the integrity protection data rate capability of the UE (300). Further, the method includes exchanging the UP signalling message with the UE (300) over the established dedicated PDU session with integrity protection.

公开(公告)号：US20210160692A1

公开(公告)日：2021-05-27

申请号：US16614109

申请日：2018-05-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Himke VANDERVELDE ,  Rajavelsamy RAJADURAI ,  Jaehyuk JANG

IPC: H04W12/0433 ,  H04W12/041 ,  H04L9/08 ,  H04W76/15

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). Disclosed is method of refreshing a security key in a secondary cell group (SCG) controlled by a secondary node (SN) of a wireless communication system, wherein the network is configured to operate in dual connectivity (DC) mode and further comprises a master cell group (MCG) controlled by a master node (MN) the method comprising: the SN indicating in a first message to a user equipment (UE) that security key refresh is to be performed; the UE generating the refreshed security key and transmitting a second message to the SN, wherein the second message indicates that the security key has been refreshed.

公开(公告)号：US20200229263A1

公开(公告)日：2020-07-16

申请号：US16742123

申请日：2020-01-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Rajavelsamy RAJADURAI ,  Mangesh Abhimanyu INGALE ,  Narendranath Durga TANGUDU

IPC: H04W76/27 ,  H04W76/18 ,  H04W12/06 ,  H04W12/12

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). A method for securing unicast message communication is provided. The method includes sending, by a user equipment (UE), a request-message for resuming radio resource control (RRC) connection to a base station, wherein the request message comprises a first-parameter defining “resume cause”. A response pertaining to at least one of network-release or network-resumption is received by the UE, wherein the response comprises a second parameter defining “resume cause”. Based on a successful-mapping between the first parameter and the second parameter, the response is acknowledged by the UE. However, for example, in case of network-rejection of the request due to network congestion, an RRC reject message comprising a first message authentication code is computed by the base station based on a stored network security context and communicated to the UE. Thereafter, a second message authentication code is mapped by the UE with the first message authentication code.

公开(公告)号：US20200178332A1

公开(公告)日：2020-06-04

申请号：US16611207

申请日：2018-05-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Neha SHARMA ,  Hyunjeong KANG ,  Pravjyot Singh DEOGUN ,  Rajavelsamy RAJADURAI

IPC: H04W76/15 ,  H04W88/06 ,  H04W76/19 ,  H04W80/08 ,  H04W36/00 ,  H04W76/27

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). The embodiments herein relate to wireless communication system and more particularly relates to a method for coordination of Radio Resource Control (RRC) configurations between interworking nodes in dual connectivity in wireless communication system. The method includes determining, by a secondary node, whether a signaling radio bearer (SRB) of a secondary node is pre-configured in a secondary cell group (SCG), deciding, by the secondary node, to perform secondary node modification to a user equipment (UE) in response to determining that the SRB of the secondary node is pre-configured, transmitting, by the secondary node, a RRC connection reconfiguration message to the UE without coordinating with a master node and receiving, by the secondary node, a RRC connection reconfiguration complete message from the UE.

公开(公告)号：US20200120504A1

公开(公告)日：2020-04-16

申请号：US16700283

申请日：2019-12-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Rajavelsamy RAJADURAI ,  Basavaraj Jayawant PATTAN ,  Suresh CHITTURI

IPC: H04W12/06 ,  H04W12/08 ,  H04L29/06 ,  H04W76/45 ,  H04W60/00 ,  H04W4/10 ,  H04W4/90

Abstract: Embodiments herein provide a method for performing multiple authentications within a service registration procedure. The method includes sending, by a User Equipment (UE) a REGISTER request message to an IP Multimedia Subsystem (IMS) server. Further, the method includes receiving, an IMS authentication challenge from the IMS server, where the IMS authentication challenge includes an IMS authentication parameter and a MCPTT authentication challenge. Further, the method includes verifying, at the UE, the IMS authentication challenge. Further, the method includes generating, at the UE, a REGISTER response message. Further, the method includes sending, a REGISTER response message to the IMS server, where the REGISTER response message includes an IMS authentication response to authenticate UE at the IMS server and a MCPTT authentication response to authenticate the UE at the MCPTT server.