Abstract: The present disclosure is related to sending of a one time identifier of a UE during the NAS procedure. Specifically, the present disclosure relates to determining whether to use same one time identifier or different one time identifier during registration retry procedure.

Abstract: The method includes sending a registration request message. The registration request message includes first 5G Globally Unique Temporary Identifier (5G-GUTI), a first Non-Access-Stratum (NAS) container, second 5G-GUTI, and a second NAS container. The first NAS container includes a first integrity protected registration request message. The first integrity protected registration request message is the registration request message which is integrity protected based on a first NAS security context. The second NAS container includes a second integrity protected registration request message. The second integrity protected registration request message is the registration request message which is integrity protected based on a second NAS security context.

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.

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. Disclosed is a method of operating a second telecommunication network to manage access of Disaster Inbound Roamers, DIR, from a first telecommunication network, to the second telecommunication network, comprising the step of: the second telecommunication network broadcasting a message indicating to User Equipments, UEs, of the first telecommunications network that they are able to roam on the second telecommunication network.

Abstract: The present disclosure provides a method and system wherein a network indicates to a UE that the UE is allowed to send SMS over NAS in a network initiated procedure in a case for SMS subscription change wherein when the UE has been registered to the 5GS after successful Registration procedure with the status that the UE cannot have the SMS over NAS service, as the UE has subscription data “SMS service is not allowed” in the UDM.

Abstract: Embodiments herein provide a method for managing CAG information. The method includes receiving, by an Access and Mobility Management Function (AMF), a registration request message from a User Equipment (UE) through a cell for registering to a network. Further, the method includes determining, by the AMF, that the UE is one of unauthorized to the cell when the cell is a CAG cell, and authorized to access the network only through a CAG cell when the cell is a non-CAG cell. Further, the method includes sending, by the AMF, a registration reject message to the UE, where the registration reject message includes a CAG information list.

Abstract: The system design disclosed by R2-2108928 works with the basic 5GS network structure. On the other hand, there are many variants of 5GS available according to 3GPP specifications. As the system design disclosed by R2-2108928 does not consider the variants of 5GS available according to 3GPP specifications, there is a case where the system design disclosed by R2-2108928 does not work in the variants. A method of an Access and Mobility Management Function (AMF) apparatus includes sending a first message including a Public Land Mobile Network Identifier (PLMN ID) and Single Network Slice Selection Assistance Information (S-NSSAI), receiving a second message including the PLMN ID and the S-NSSAI associated with an identifier, and sending the S-NSSAI associated with the identifier.

Abstract: [Problem] When AMF changes from one AMF to another AMF, there is a problematic situation or an unclear situation for communication procedure between nodes including the AMF related to the communication procedure. [Solution] A communication apparatus includes means for receiving a message. The message includes information related to an access type. The communication apparatus includes means for using a Non Access Stratum (NAS) security context to perform an integrity check related to a registration request message. The NAS security context corresponds to the information related to the access type.

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

Abstract: [Problem] This disclosure addresses how to define a mechanism for allocating the most suitable network slice to the UE or UE's PDU session in certain scenarios if a requested network slice from the UE is not allowed due to the Network Slice Admission Control. Solution A method of an Access and Mobility management Function (AMF) apparatus includes receiving, from a User Equipment (UE), first information related to a first network slice and second information related to a second network slice, and sending, to a Session Management Function (SMF) apparatus, the second information to establish a Protocol Data Unit (PDU) session on the second network slice in a case where the first network slice is overloaded.

Abstract: This disclosure proposes solutions for providing an optimized User plane handling in 5GS. A method of a communication apparatus includes executing a function of a gNB Centralized Unit User Plane (gNB-CU-UP) apparatus and function of a User Plain Function (UPF) apparatus, communicating with a gNB Distributed Unit (gNB-DU) apparatus, and communicating with a gNB Centralized Unit-Control Plane (gNB-CU-CP) apparatus.

Abstract: This disclosure proposes solutions for providing a resiliency of gNB-CU against possible node failures. The node failure includes unexpected system reset, system rebooting, system stall, system congestion and communication failure with neighboring nodes. A method of a gNB Distributed Unit (gNB-DU) apparatus includes detecting failure of a gNB Centralized Unit User Plane (gNB-CU-UP) apparatus. The method includes sending a UE COTEXT RELEASE REQUEST message to a gNB Centralized Unit Control Plane (gNB-CU-CP) apparatus in a case of detecting the failure of the gNB-CU-UP apparatus. The UE COTEXT RELEASE REQUEST message includes information indicating detection of the failure of the gNB-CU-UP apparatus and information indicating that Radio Resource control (RRC) connection with a User Equipment (UE) needs to be re-established. The method includes receiving a UE CONTEXT RELEASE COMMAND message from the gNB-CU-CP apparatus. The method includes sending a RRC Release message to the UE.

Abstract: The present disclosure is related to sending of a one time identifier of a UE during the NAS procedure. Specifically, the present disclosure relates to determining whether to use same one time identifier or different one time identifier during registration retry procedure.

Abstract: The present disclosure relates to a method for a user equipment, UE, which includes a mobile equipment, ME, and a subscriber identity module, SIM. The method comprises checking whether the ME and the SIM have a 5th generation, 5G, specific parameter or not, and sending, to a network node, a first message containing a first information element, IE, indicating whether the UE has a valid 5G specific parameter or not, so as to fetch a 5G specific parameter value from a unified data management, UDM.

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 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.

Abstract: The present disclosure relates to synchronizing a temporary identity in the UE and the network when the UE is RRC Inactive state over 3GPP access and temporary identity of the UE is changed over a Non-3GPP access in a scenario when the UE is connected to the same AMF via 3GPP and non-3GPP access.

Abstract: One of the outstanding problems is how and in what format the 5GS network (or another network node) provides the network slice priority information and network slice grouping information to the UE and to other network nodes so that the UE can perform cell selection and cell reselection based on the network slice priority and network slice grouping information. This includes the provision of the network slice priority and possible network slice grouping to the 5GS itself in case of network slices owned by external service provider. A method of an Application Function (AF) apparatus includes changing a priority related to Single Network Slice Selection Assistance Information (S-NSSAI), and sending the priority to a Network Exposure Function (NEF) apparatus.

Abstract: A UE is in a connected mode over a non 3GPP access and in an idle mode over a 3GPP access. The UE receives a NOTIFICATION message from a core network node over the non-3GPP access. The UE determines, when performing a service request procedure, MT_acc=0 as an access category to be associated with the service request procedure upon receiving the NOTIFICATION message. The UE checks whether an access attempt for an access category is barred or allowed. When the access category is allowed, the UE sends a RRC connection setup request to a base station and transmits a SERVICE REQUEST message to the core network node after a RRC connection is established.

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.

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