Samsung Electronics Co., Ltd.

Anikethan Ramakrishna Vijaya Kumar

Kundan Tiwari

Lalith Kumar

Rajavelsamy Rajadurai

Narendranath Durga Tangudu

Varini Gupta

Ricky Kumar Kaura

Debabrata Das

Fasil Abdul Latheef

Prasad Basavaraj Dandra

Vijay Ganesh Surisetty

Deepanshu Gautam

Sivasankar Comaravelou

Debashish Deka

Himke Van Der Velde

Embodiments of present disclosure relates to an apparatus and method for managing security context related to a UE. Initially, registration of a UE with a new AMF in a communication network is identified. Further, generation of new security context by new AUSF selected by the new AMF for authentication of the UE is detected. Further, presence of one or more old security contexts elated to the UE and generated by one or more old AUSFs selected by one or more old AMFs for one or more previous authentications of the UE, is detected. Upon the detection, de-registration of the UE with the one or more old AUSFs is initiated for managing security context related to the UE in the communication network. Thus, stale and inactive security context related to the UE may be deleted in the network and security of communication with the UE is enhanced.

Method and apparatus for managing security context related to UE

A method disclosed herein includes registering, by a UE, with a same PLMN over a 3GPP access and a non-3GPP access. The method includes receiving, by the UE, a notification message from a CN of the PLMN over the non-3GPP access, in response to at least one communication service pending to be delivered to the UE over the 3GPP access. The method includes sending, by the UE, a notification response message to the CN over the non-3GPP access, in response to the received notification message. In order to avoid delay in acquiring downlink communication services, the method includes triggering, by the UE, the registration procedure with the CN to receive communication services over the 3GPP access in response to the UE entering the coverage of the 3GPP access.

Method and apparatus for acquiring communication services

The present disclosure relates to a pre-5-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4-Generation (4G) communication system such as Long Term Evolution (LTE). The present disclosure relates to a method and system for steering of roaming (SoR) information based on required services for roaming subscribers. The method includes registering the UE in a visited public land mobile network (VPLMN) by an access and mobility management function (AMF) device. The method comprises requesting a unified data management (UDM) server of a home public land mobile network (HPLMN) to provide subscription data. The method further comprises requesting by the UDM server SoR information from an application function (AF) device, wherein the request includes information related to single-network slice selection assistance information (S-NSSAI) either requested or subscribed by the UE. The method comprises the steps of determining the SoR information to be provided to the UDM server and transmitting the SoR information to the UE. The subscribers can use the SoR information for latching onto a VPLMN that provides the service they are interested in.

Method and system for improving PLMN selection based on required services/ slices for roaming subscribers

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 herein disclose a method for downlink uplink collision handling in a wireless communication network.

Method and apparatus for downlink uplink collision handling in wireless communication network

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. The present disclosure relates to providing at least a method and an apparatus for MDAS assisted paging.

Method and apparatus for management data analytics service (MDAS) assisted paging in a wireless communication system

Disclosed herein are a communication technique for merging, with an IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system; and a system therefor. Embodiments herein disclose a method of protecting sensitive user plane traffic in an User Equipment (UE) (), the method comprising: transmitting, to a network (), by the UE () a first NAS message comprising an indicator indicating that the UE () supports of a secure channel for domain name system (DNS); receiving, from the network (), by the UE () a second NAS message including DNS server security information in response to transmitting the first NAS message; and transmitting, to the network (), by the UE () the DNS over the secure channel based on the DNS server security information.

Method and device for protecting sensitive user plane traffic

This disclosure provides a method for providing user equipment (UE) radio access capabilities in a handover procedure. The method includes identifying, by a source next-generation radio access network (NG-RAN), that a target public land mobile network (PLMN) does not support a UE radio access capabilities identifier (RAC ID) assigned by a source PLMN in an inter-PLMN handover procedure. Further, the method includes providing, by the source NG-RAN, to a target NG-RAN, the UE radio access capabilities instead of the UE RAC ID in response to identifying that the target PLMN does not support the UE RAC ID assigned by the source PLMN.

Method and apparatus for providing UE radio capabilities in handover procedure

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. Methods and systems for handling encoding of radio capability information of UE using RACS. A method disclosed herein includes encoding radio capability information of a user equipment (UE) in formats of multiple radio access technologies (RATs) that have been supported by a public land mobile network (PLMN) in which the UE is registered. The method further includes assigning a radio capability identifier (RAC-ID) to the UE for signalling the radio capability information encoded in the multiple formats across the multiple RATs. The method further includes encoding the radio capability information in a specific format of the indicated RAT and assigning the RAC-ID to the UE for signalling the radio capability information and the associated encoding format.

Methods and systems for handling encoding of radio capability signalling information of UE using RACs

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. A method and apparatus for managing CAG related procedure in a wireless communication network is provided.

Method and apparatus for managing cag related procedure in wireless communication network

The present disclosure relates to a pre-5-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4-Generation (4G) communication system such as Long Term Evolution (LTE). Embodiments herein disclose a method performed by a terminal in a mobile communication system. The method includes performing a registration procedure on a first standalone non-public network (SNPN), selecting a second SNPN based on a predetermined condition, and transmitting, to a network entity, a registration request message on the second SNPN for an initial registration, in case that the second SNPN differs from the first SNPN.

Method and UE for handling mobility procedure for UE

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.

Methods and apparatus for controlling permissions of a UE for accessing a network

Accordingly, embodiments herein disclose a method performed by a user equipment (UE) in a wireless communication system. The method comprises receiving, from an access and mobility management function (AMF), a non-access stratum (NAS) message, wherein the non-access stratum (NAS) message includes information indicating whether the UE is registered for emergency services and determining registering for the emergency services based on the NAS message.

Method and apparatus for handling session in a wireless communication system

A method for managing a Closed Access Group (CAG) feature using an Access and Mobility Management Function (AMF) server. The method includes receiving a registration request message from a User Equipment (UE) for registering for a CAG subscription. The method includes determining that the UE is subscribed to access the network through a CAG cell only. The method includes determining whether the registration request message includes a CAG support indicator. The method includes determining whether the UE supports the CAG feature based on the CAG support indicator. The method includes sending either a registration accept message including a CAG information list to the UE when the UE supports the CAG feature, or a registration reject message including a 5GMM cause value other than a 5GMM cause #to the UE when the UE does not support the CAG feature.

Growing community of inventors

Bengaluru, India

Anikethan Ramakrishna Vijaya Kumar