Abstract: Apparatuses and methods for configuration of downlink data measurement at mobile terminating early data transmission (MT-EDT) are provided. In one embodiment, a method implemented at a network node includes determining whether to measure a size of downlink data for a mobile terminating early data transmission, MT-EDT, procedure associated with a user equipment, UE; as a result of the determination, obtaining a measurement of the size of the downlink data; and optionally, sending the measurement of the size of the downlink data to a second network node.

Abstract: A method in a core network of a cellular communications system to enable Data over Non-Access Stratum, DoNAS, data delivery in a roaming scenario, the method comprising: sending from the V-SMF to a Home Session Management Function, H-SMF, a Packet Data Unit, PDU, session create request during PDU session establishment for DoNAS data delivery for a User Equipment, UE, in a roaming scenario; and receiving a response from the H-SMF. In embodiments of the method the PDU session create request comprises an indication that a control plane can be used for data delivery.

Abstract: Disclosed herein is a method for operating a radio access network (RAN) node of a wireless communication network.

Abstract: The present application generally relates to wireless communication technology. More particularly, the present application relates to a method and an apparatus for providing Multicast Broadcast (MB) service in a local service area. The present application also relates to computer program product adapted for the same purpose. The present application also relates to a terminal device adapted to cooperate with the apparatus for providing MB service in a local service area.

Abstract: Methods are provided to operate an SMF node. A request to create a session for a wireless device is received. A communication establishment request is transmitted to an NEF node responsive to receiving the request to create the session for the wireless device, wherein the communication establishment request includes UPF node information for a tunnel between a UPF node and the NEF node to be used for the session for the wireless device. A communication establishment response is received from the NEF node, wherein the communication establishment response includes NEF node information for the tunnel between the UPF node and the NEF node to be used for the session for the wireless device. A tunnel information update is transmitted to the UPF node after receiving the communication establishment response, wherein the tunnel information update includes the NEF node information for the tunnel between the UPF node and the NEF node.

Abstract: Systems and methods for session continuity of Multicast Broadcast (MB) Sessions are provided. In some embodiments, a method performed by a base station for session continuity of MB Sessions includes at least one of: providing at least one MB Session to a wireless device connected in 5G; determining that the wireless device is handed over to a target Next Generation Radio Access Network (NG-RAN); and providing session continuity of the at least one MB Session to the wireless device. In some embodiments, being handed over to the target NG-RAN comprises an Xn handover. In some embodiments, being handed over to the target NG-RAN comprises a N2 handover. Some embodiments of the current disclosure provide support for Multicast Broadcast Session continuity (aka “Handover”) at Inter-gNB Xn Handover and Inter-gNB N2 Handover in the 5G NR radio access.

Abstract: Various embodiments described herein aim to ensure that user data transmissions (e.g., small data transmissions that are sent using control plane messages) do not become excessive and stay infrequent, thereby reducing the likelihood of a network overload situation. In one embodiment, an admission control function (ACF) for regulating the transmission of uplink user data is implemented in a wireless communication device (WCD) (e.g., a CIoT device). Such a WCD device may receive from a core serving node (CSN) admittance information (AI) (e.g., parameters, such as thresholds, used by the ACF to regulate the uplink traffic) that is used in performing the admittance control.

Abstract: Apparatuses and methods for 5G Multicast Broadcast Services (5MBS) individual delivery are disclosed. In one embodiment, a core network node is configured to determine a radio access network, RAN, capability indication; and as a result of a request from a user equipment, UE, to join a multicast/broadcast, MB, session, sending a MB session response based on the RAN capability indication and at least one of a disable individual delivery parameter related to a multicast broadcast service, MBS, and a policy. In one embodiment, an application function, AF, node is configured to determine whether to disable an individual multicast broadcast service, MBS, traffic delivery for a multicast/broadcast, MB, session to at least one user equipment, UE; and send to a network node a disable individual delivery parameter associated with the MB session based at least in part on the determination.

Abstract: A method and apparatus for multicast broadcast service. The method implemented at an access and mobility management function (AMF) entity comprises receiving a message for starting a multicast/broadcast (MB) session from a session management function (SMF) entity. The message comprises first location information. The method further comprises sending an MB session joining accept, reject, or cancel message to at least one terminal device based on the first location information.

Abstract: Methods are provided to operate an SMF node. A request to create a session for a wireless device is received. A communication establishment request is transmitted to an NEF node responsive to receiving the request to create the session for the wireless device, wherein the communication establishment request includes UPF node information for a tunnel between a UPF node and the NEF node to be used for the session for the wireless device. A communication establishment response is received from the NEF node, wherein the communication establishment response includes NEF node information for the tunnel between the UPF node and the NEF node to be used for the session for the wireless device. A tunnel information update is transmitted to the UPF node after receiving the communication establishment response, wherein the tunnel information update includes the NEF node information for the tunnel between the UPF node and the NEF node.

Abstract: Various embodiments described herein aim to ensure that user data transmissions (e.g., small data transmissions that are sent using control plane messages) do not become excessive and stay infrequent, thereby reducing the likelihood of a network overload situation. In one embodiment, an admission control function (ACF) for regulating the transmission of uplink user data is implemented in a wireless communication device (WCD) (e.g., a CIoT device). Such a WCD device may receive from a core serving node (CSN) admittance information (AI) (e.g., parameters, such as thresholds, used by the ACF to regulate the uplink traffic) that is used in performing the admittance control.

Abstract: Systems and methods related to core network and Radio Access Network (RAN) interactions for a Multicast/Broadcast (MB) session are disclosed herein. In one embodiment, a method performed by an Access and Mobility Management Function (AMF) for a MB session join procedure comprises receiving a MB session join request from a User Equipment (UE) via a RAN node, the MB session join request being a request to join a particular MB session. The method further comprises determining that the MB session join request is permitted by a subscription of the UE, selecting a MB Session Management Function (MB-SMF) based on information comprised in the MB session join request, communicating with the MB-SMF to create a MB session context in the AMF and an MB session context in the MB-SMF, and sending a MB session join accept message to the UE.

Abstract: The present disclosure is directed to method in a mobility management node and such a node for delivering data to a wireless communication device (WCD) served by the mobility management node, operating in a communication network comprising a network entity (NE) and a radio access network (RAN) node serving the WCD, the method comprises: obtaining capability information indicating whether the RAN node supports acknowledgement of a successful delivery of data to the WCD; receiving a data message sent by the NE comprising user data intended for the WCD; sending a control plane message comprising the user data to the RAN node for further delivery to the WCD; sending a response to the NE indicating the outcome of the data delivery.

Abstract: Solutions are proposed herein that provide several alternatives for how an AMF can perform discovery of a proper MB-SMF or MB-SMF instance in the network.

Abstract: Embodiments of a method performed by a radio access node for network scheduled User Equipment (UE) transition to connected mode and corresponding embodiments of a radio access node are disclosed. In some embodiments, a method performed by a radio access node comprises receiving: (a) a notification request from an Access and Mobility Management Function (AMF) to retrieve reachability information for a UE or (b) downlink data to be communicated to the UE. The method further comprises, upon receiving either (a) or (b), determining that the UE is in an inactive state and is currently unreachable. The method further comprises sending information to the AMF that notifies the AMF that the UE is currently unreachable. The information comprises information that indicates that RAN paging of the UE is scheduled or scheduling assistance information. Embodiments of method performed by an AMF and corresponding embodiments of an AMF are also disclosed.

Abstract: Techniques are provided for a UE performing neighbor cell measurement prior to entry into a low power mode. Generally, the UE configures a low energy neighbor cell measurement. Responsive to a low power trigger, the UE delays transition to the low power mode to perform the neighbor cell measurement.

Abstract: The embodiments herein relate to a method in a mobility management node (108) for handling overload in a communications network (100). When overload in the communications network (100) has been detected, the mobility management node (108) receives information indicating at least one blocked IP address to which access should be blocked. The mobility management node (108) receives a communication request message from a UE (101) via a RAN node (105). The communication request message is a request for communication by the UE (101). The mobility management node (108) determines that the UE's (101) request for communication should be rejected when the UE (101) is associated with a blocked IP address.

Abstract: Disclosed herein is a method of operation of a wireless device to provide service gap control in a wireless communication system, comprising: receiving a service gap parameter from a network entity in a mobility management sublayer non-access stratum message, the service gap parameter being indicative of a value for a service gap timer for the wireless device; and enforcing the service gap parameter at the wireless device in a non-access stratum layer. Also disclosed herein is a method of operation of a core network entity in a core network of a wireless communication system to provide service gap control, comprising: obtaining a service gap parameter for a wireless device, the service gap parameter being indicative of a value for a service gap timer for the wireless device; and sending by the core network entity the service gap parameter to the wireless device via a mobility management sublayer non-access stratum message.

Abstract: Systems and methods for handling a wireless device in a Configuration Management (CM)-Connected state with Radio Resource Control (RRC) Inactive state are provided. In some embodiments, a method for performing a mobility transfer from a Fifth Generation network to an Evolved Packet System (EPS) network includes a 5G network node: receiving, from an EPS network node, a context request for context associated with a User Equipment (UE); determining data forwarding information associated with the UE; and sending, to the EPS network node, a context response comprising context information associated with the UE and data forwarding information associated with the UE. In this way, packet losses will be minimized leading to improved end user performance.

Abstract: Disclosed herein is a method of operation of a wireless device to provide service gap control in a wireless communication system, comprising: receiving a service gap parameter from a network entity in a mobility management sublayer non-access stratum message, the service gap parameter being indicative of a value for a service gap timer for the wireless device; and enforcing the service gap parameter at the wireless device in a non-access stratum layer. Also disclosed herein is a method of operation of a core network entity in a core network of a wireless communication system to provide service gap control, comprising: obtaining a service gap parameter for a wireless device, the service gap parameter being indicative of a value for a service gap timer for the wireless device; and sending the service gap parameter to the wireless device via a mobility management sublayer non-access stratum message.