Abstract: Methods and apparatuses for redirecting a wireless transmit/receive unit (WTRU) to a dedicated core network (CN) node are described. An apparatus is configured to initiate a Service Request with a non-dedicated network node. The apparatus is configured to receive a special identifier in response to the Service Request, which indicates the apparatus should be redirected to a dedicated CN node based on subscription information. Radio access network resources associated with the apparatus may be released and the apparatus may then perform a tracking area update (TAU) request which is then forwarded to the dedicated CN node.

Abstract: There is disclosed a method for a user equipment (UE) in a wireless communication system, receiving pending network slice selection assistance information (NSSAI) including one or more single NSSAIs (S-NSSAIs), and applying the received pending NSSAI to at least one second public land mobile network (PLMN) in a registration area, wherein the UE is assigned to the registration area comprising two or more tracking areas (TAs) including at least a first set of TAs belonging to a first public land mobile network (PLMN) to which the UE is registered.

Abstract: Systems, methods, and instrumentalities are provided for a network control node for connecting a wireless transmit/receive unit (WTRU) to a network slice in a network. The network control node may receive service information associated with a service being requested by the WTRU, wherein the service information comprises one or more of a service class, a quality of service (QoS) requirement, or a mobility characteristic. The network control node may determine slice information associated with a plurality of network slices, wherein the slice information comprises one or more of an identifier of the network slice, priority of the network slice, a service class served by the network slice, a target device class, a QoS target, mobility support, security service, charging information, and/or performance information. The network control node may determine subscriber information for the WTRU.

Abstract: A method and a system are disclosed for providing session continuity in a 5G system. A wireless transmit receive unit (WTRU) may receive, from a session management function (SMF), a first Non-Access Stratum (NAS) message indicating a Packet Data Unit (PDU) session re-establishment. Upon receiving the first NAS message, the WTRU may determine an old PDU session ID based on the NAS message and generate a new PDU session ID. The WTRU may transmit a second NAS message indicating a PDU session establishment request. The second NAS message may include the old and new PDU session IDs. Upon receiving the PDU session establishment request, the SMF may determine that the old PDU session ID is associated with an existing PDU session for which the PDU session re-establishment is requested. The SMF may also determine that the new PDU session ID is associated with a new PDU session to be established.

Abstract: In accordance an embodiment of the disclosure, a method performed by a user equipment (UE) in a wireless communication system is provided. The method may comprise: identifying an inter-system change from a first mode to a second mode, transferring a data session established in the first mode to the second mode from the first mode, determining whether the UE and a network entity in the second mode support a header compression, and initiating, based on a result of the identifying, a procedure for negotiating a header compression configuration in the transferred data session, wherein the first mode is one of N1 an mode or an S1 mode, and the second mode is the other of the N1 mode or the S1 mode.

Abstract: Procedures, systems, and devices for addressing quality of service (QoS) during an inter-system change of a wireless transmit/receive unit (WTRU) are discussed herein. A WTRU may send a packet data unit (PDU) modification request to a network node, such as a session management function (SMF) device, indicating support for reflective quality of services (RQoS). In response to the modification request, the WTRU may then receive an acknowledgement, after which the WTRU may then be able to send data for a PDU of a specific RQoS. The RQoS may be specific to a single PDU or a plurality of PDUs. The modification request may include Session Management (SM) and/or Mobility Management (MM) information. The modification request may be included in an attach procedure or a tracking area update (TAU).

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 a user equipment (UE) is disclosed. The method comprises: transmitting, by the UE to a network entity, a registration request message including a registration type information element (IE) indicating a periodic registration updating or a mobility registration updating; receiving, by the UE from the network entity, a registration accept message including a pending network slice selection assistant information (NSSAI); and determining, by the UE, that a previously received allowed NSSAI as invalid based on the registration accept message.

Abstract: A method performed by a user equipment (UE) in a wireless communication system is provided. The method may include: receiving, from a network entity, information associated with one or more quality of service (QoS) rules; checking the information associated with the one or more QoS rules, for a QoS rule associated with a non-default QoS rule and for the QoS rule with a rule operation different from deleting the QoS rule; in case that the UE is in a narrow band (NB)-N1 mode, the QoS rule is associated with the non-default QoS rule and the rule operation is different from deleting the QoS rule, detecting the QoS rule as an error; and transmitting, to the network entity, a protocol data unit (PDU) session modification request message to delete the detected QoS rule.

Abstract: Various aspects of the present disclosure include methods, network servers or components and user equipment devices configured to authorize network slices that are associated with services provided by external providers. Various aspects enable access and use of network slices by user equipment devices connected to a network (e.g., 5G or New Radio network) via network components associated with a service provider by generating an allowed network slice selection assistance information (Allowed NSSAI) and an Unauthorized NSSAI, and sending the Allowed NSSAI and Unauthorized NSSAI to a user equipment device.

Abstract: Methods, apparatus and systems using Enhanced Dedicated Core Network (DCN) selection are disclosed. One representative method includes receiving, by the core network entity from another core network entity, information indicating that a DCN type is new or has change for a wireless transmit/receive unit (WTRU); and sending a message, by the core network entity to the WTRU, including a new or a changed DCN type.

Abstract: A network control node (Main CTRL or CTRL N) may receive a service request by a WTRU, wherein the service information comprises one or more of a service class, a quality of service (QoS) requirement, or a mobility characteristic. The network control node may determine slice information associated with a plurality of network slices and may select at least a first network slice to serve the WTRU. The network control node may determine whether the network control node or another network control node should service the WTRU for accessing the first network slice. When the network control node determines that the another network control node should service the WTRU for accessing the first network slice, the network control node may send a request to the another network control node that indicates that the another network control node should service the WTRU for accessing the first network slice.

Abstract: Method and apparatus for providing information to a network are disclosed. An eNodeB (eNB) may receive pattern information relating to connection state management behavior of a wireless transmit/receive unit (WTRU). The eNB may receive this information over S1 signaling when a connection is established. The eNB may determine a time factor for connection state management, wherein the time factor may be based on the received information. The determine time factor may be used to adjust connection states of the WTRU.

Abstract: The disclosure relates to a communication method and a 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 disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as a smart home, a smart building, a smart city, a smart car, a connected car, healthcare, digital education, a smart retail, security and safety services. A method for a user equipment (UE) in a network is provided. The UE is using control plane CIoT 5GS optimization and is in a restricted service area. The method includes determining one or more of a mode of the UE, a type of data required, and a service requested, and setting a UE behavior for initiating a NAS procedure based on one or more of the mode of the UE, the type of data required, and the service requested.

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. There is disclosed a method, for a first network entity, for informing a change in coverage enhancement usage in a network comprising the first network entity and a user equipment (UE). The method comprises, in response to determining that a restriction on the use of coverage enhancement has changed for the UE, transmitting, to the UE, a first message including an indication of the change.

Abstract: Methods, apparatus and systems using Enhanced Dedicated Core Network (DCN) selection are disclosed. One representative method includes receiving, by the core network entity from another core network entity, information indicating that a DCN type is new or has change for a wireless transmit/receive unit (WTRU); and sending a message, by the core network entity to the WTRU, including a new or a changed DCN type.

Abstract: Methods and apparatuses are disclosed for a wireless transmit/receive unit (WTRU) to perform a multi-radio access technology (RAT) access (MRA) operation. The apparatus may include a WTRU comprising a transceiver and a processor configured to send a non-access stratum (NAS) access request message to a network node using a first radio access technology (RAT). The message may indicate that the WTRU can connect to both a network node using the first RAT and a network node using a second RAT. The transceiver may be configured to receive a NAS accept message and a message comprising configuration information for the second RAT. The transceiver and the processor may be further configured to connect to a network node using the second RAT based on the received configuration information and communicate with both the network node using the first RAT and the network node using the second RAT.

Abstract: An interworking service entity receives server registration requests including indications of service layer protocols used by each server, maintains a repository of server information, and uses the repository for interworking requests of devices to servers of different protocols based on a server type provided in discovery requests. Other matching information may include, for example, server security protocol, supported services, service territory, availability, capacity, or loading, as device information or preferences, such as supported service, supported interface type, or a supported device type.

Abstract: A fog service layer architecture is disclosed using hierarchical fog node deployment including the co-existence and interactions of the fog node with a cloud node. The architecture also includes a list of functions, capabilities or services that are hosted in each fog node. One or more fog management procedures may be run between fog nodes (or between fogs and the cloud) and may comprise a fog capability discovery procedure, a fog connection verification procedure, and a fog capability status report procedure. In addition, fog nodes may be configured to interact with each other to get particular services using one or more fog service procedures described herein.

Abstract: Techniques for congestion management in a communication network are contemplated. For example, a wireless transmit receive unit (WTRU) may include a Radio Resource Control (RRC) layer and a Non-Access Stratum (NAS) layer. The RRC layer may receive an indication for a service, for example from the NAS. The indication may be interpreted as a request for the particular service indicated. For example, the indicated service may correspond to at least one of: a mobile originated (MO) voice communication, a circuit switched fallback (CSFB) supplementary service (SS), or a MO short message service (SMS). The RRC layer may receive a signal from a network indicating that one or more services provided by the network are allowed. The RRC layer may send a connection request to the network for the service sought by the NAS if that service is one of the one or more services allowed.

Abstract: Methods and systems for Link Binding Management (LBM), including architectural design, detailed procedures, and embodiments to related standards, are described herein. In a first embodiment, an LBM Architecture A is disclosed which includes four logical entities: a Resource Creator (RC), a Source Resource Host (SRH), a Destination Resource Host (DRH), and a Link Binding Coordinator (LBC). Interactions are defined for these four entities to cooperate in order to efficiently manage link bindings (e.g. link binding creation, link binding update, etc) between source and destination resources. In a second embodiment, an LBM Architecture B is also disclosed which includes a Resource Repository (RR), a SRH2, a DRH, and a LBC. Interactions on those actors are developed towards efficient link binding management. Detailed procedures for LBM Architecture B are also disclosed.