Abstract: According to some embodiments, a method is performed by a wireless device operating in both a first network and a second network wherein the wireless device is in an idle/inactive state in the second network. The method comprises: determining (1112) a periodic pattern for performing a set of idle/inactive mode procedures in the second network; transmitting (1114) a first indication of the determined periodic pattern to the first network; monitoring (1116) an occurrence of at least one idle/inactive event in the second network; and transmitting (1118) a second indication of the occurrence of the at least one idle/inactive event to the first network, thus allowing the first network to adapt the pattern for the wireless device to perform procedures in the second network, or to allow a different unavailability of the wireless device for f{circumflex over (?)} ? performing procedures in the second network.

Abstract: A method performed by a user equipment includes receiving, via a radio access network (RAN), a radio resource control (RRC) message indicating to transition from RRC_CONNECTED to RRC_INACTIVE. The RRC message includes a resume identifier. The user equipment performs a connection resume procedure that includes transmitting, to the RAN, an RRC connection resume request that includes the resume identifier and transmitting, to the RAN, an RRC resume complete message that includes an index of a selected public land mobile network (PLMN) identity.

Abstract: Systems and method are disclosed herein that relate to support for virtual Time-Sensitive Networking (TSN) bridge management, Quality of Service (QoS) mapping, and TSN related scheduling in a cellular communications system. In some embodiments, a method performed by one or more network nodes of a cellular communications system operating as a virtual TSN bridge of a TSN network comprises providing, to a controller associated with the TSN network, parameters that relate to capabilities of the virtual TSN bridge. The parameters that relate to the capabilities of the virtual TSN bridge comprise a first parameter that defines a clock accuracy of an entity in the cellular communications system that operates gating control for the virtual TSN bridge and a second parameter that informs the controller associated with the TSN network that the virtual TSN bridge or a particular egress port of the virtual TSN bridge is restricted to exclusive gating.

Abstract: A method of operation of an OAM node in a 5G system for fulfilling a service level agreement (SLA) for a network slice. The method comprises the OAM node initializing the slice information at a first network entity (NSSF) including the initial number of users allowed for a slice and transmitting information related to KPI for the slice for QoE monitoring; receiving one or more Quality of Experience (QoE) measurements related to one or more users of the slice, using the received one or more QoE measurements to determine whether the KPI for the slice is reached in accordance with the SLA and in response to determining that the KPI for the slice is not in accordance with the SLA, triggering an action in at least one of corresponding Radio Access Network or a Core Network associated with the slice, such as resource reconfiguration or redistribution across different slices.

Abstract: A method performed by a target access node for handling data packets in a handover of a User Equipment, UE, from a source cell served by a source access node, to a target cell, served by the target access node in a wireless communications network is provided. The target access node receives a status report of last received data packet in the UE from the source access node. The target access node performs a data packet duplication check based on the information comprised in the status report. The target access node then sends to the UE, only data packets which have not already been received by the UE from the source access node, based on the outcome of the duplication check.

Abstract: According to some embodiments, a method performed by a wireless device operating in a non-terrestrial network (NTN) comprises receiving a first tracking area identity (TAI) from a first cell. The first cell is an earth moving cell and the first TAI is associated with a first fixed tracking area. The method further comprises receiving a second TAI. The second TAI is associated with a second fixed tracking area. The method further comprises determining whether the wireless device should notify a network node of a tracking area update based at least in part on information related to the second TAI, and upon determining the wireless device should notify the network node of the tracking area update, transmitting a tracking area update.

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: A network node (20) is configured for use in a wireless communication network (10). The network node (20) configures multiple central unit user planes, CU-UPs, (14-1UP) of a disaggregated radio network node (14) to handle different respective data radio bearers (16-1 . . . 16-N) of a wireless device (12) in multi-connectivity operation, with security processing of user plane traffic by different CU-UPs (14-1UP) being based on different respective security keys (18). In some embodiments, the network node (20) configures different distributed units, DUs, of the disaggregated radio network node (14) to serve different respective ones of the data radio bearers (16-1 . . . 16-N).

Abstract: In one aspect, an MME throttles (or otherwise controls) the amount or frequency of UL data that a UE transmits in the control plane, such as by communicating to the UE rate control information (e.g., a throttling factor or throttling delay). For instance, the MME may throttle NAS messages with user data (i.e., NAS Data PDUs) sent using control plane CIoT EPS optimization by adding a throttling factor and/or a throttling delay in a NAS message sent to the UE.

Abstract: A method performed by a serving Access and Mobility Management Function (AMF) serving a wireless communication device. The method includes receiving, from a target AMF, a request for information regarding the wireless communication device. The method also includes submitting, in reply to the request for information, a current user equipment (UE) context of the wireless communication device and an identifier of an ongoing non 3rd Generation Partnership Project (non-3GPP) access Protocol Data Unit (PDU) session for the wireless communication device. The method further includes notifying a Non-3GPP Interworking Function (N3IWF) to remove the current UE context, wherein the N3IWF is configured to enable the wireless communication device to attach to the core network over non-3GPP access.

Abstract: Embodiments include methods for notifying of changes to an access network's (AN) compliance with a QoS requirement for a data flow between an application server and an application associated with a user equipment served by the AN. Such embodiments include receiving, from a core network (CN), a first safeguard time associated with the QoS requirement and representing an amount of time required, prior to AN non-compliance with the QoS requirement, to adapt the application for safe operation during the AN non-compliance. Embodiments also include determining that, at approximately a first instance in the future, the AN is likely to be non-compliant with the QoS requirement; and sending, to the CN, a first notification indicating a likelihood of future AN non-compliance with the QoS requirement. The first notification is sent at least the first safeguard time before the first instance. Embodiments include complementary methods performed by CNs and application servers.

Abstract: Methods and apparatus are provided. In an example aspect, a method in a User Equipment (UE) of performing a RRC re-establishment procedure is provided. The method comprises receiving an instruction from a network node to perform a RRC re-establishment procedure, and transmitting a RRC re-establishment request.

Abstract: Methods supporting a Quality of Service (QoS) update during a Handover (HO) procedure are disclosed herein. More specifically, methods performed by a Radio Access Network (RAN) node and a Core Network (CN) node for supporting a QoS update during an HO are provided. The methods disclosed herein can facilitate flexible New Generation (NG)-RAN (NG-RAN) deployment with a mixture of NG-RAN nodes capable or incapable of supporting additional parameters in an HO procedure. The methods also make it possible to provide smooth NG-RAN software updates between different software releases.

Abstract: According to some embodiments, a method performed by a network node comprises: mapping a first cell identifier associated with the network node to a second cell identifier associated with a first geographical coverage location of a beam transmitted by the non-geostationary satellite; broadcasting the first cell identifier to one or more wireless devices in the first geographical coverage location; and transmitting the second cell identifier to a core network node as part of location information for one of the one or more wireless devices in the first geographical coverage location.

Abstract: Methods and apparatus are provided. In an example aspect, a method in a User Equipment (UE) of providing data in a PDCP message to a layer above a PDCP layer is provided. The method includes receiving an indication that a PDCP message received at the UE should bypass a PDCP reordering process, and providing data in the PDCP message to a layer above a PDCP layer without using the PDCP reordering process.

Abstract: Embodiments herein relate to a method performed by a distributed unit of a network node, for establishing a connection between the distributed unit and a central unit connected to a core part of the wireless network. The network node includes the central unit and at least the distributed unit. The distributed unit performs a Domain Name Server lookup for a proxy central unit, which will act as a temporary or initial central unit with regard to a configuration transfer procedure. The distributed unit further receives an ip address of the proxy central unit and initiates the configuration transfer procedure by sending a configuration transfer message to the ip address of the proxy central unit. The distributed unit further receives an ip address of the central unit and establishes a connection between the distributed unit and the central unit using the received ip address of the central unit.

Abstract: Embodiments include methods performed by a radio access network (RAN) node of a wireless communication system. Such methods include receiving, from a wireless device via a cell, a request to resume an RRC connected state with the wireless communication network. The request includes a cause indicator that indicates mobility signaling as a cause for resuming the RRC connected state. Such methods include, based on the cause indicator, requesting an access and mobility management function (AMF) of the wireless communication system to perform a tracking area update (TAU) for the wireless device. Such methods include receiving from the AMF an indication that the TAU for the wireless device is complete and in response to the received indication, initiating an access-stratum (AS) procedure for the wireless device. Other embodiments include complementary methods for AMFs as well as RAN node and AMFs configured to perform such methods.

Abstract: Embodiments include methods in a wireless device. Such methods include, while the wireless device is in an RRC inactive state with respect to a wireless communication network, determining that updates are needed for the wireless device's access stratum (AS) and non-access stratum (NAS). For example, the AS update can be a RAN notification area update (RNAU) and the NAS update can be a tracking area update (TAU). Such methods include transmitting, to the wireless communication network, a request to resume an RRC connected state with the wireless communication network. The request includes a cause indicator that indicates mobility signaling as a cause for resuming the RRC connected state. Such methods also include receiving, from the wireless communication network, a response to the request to resume the RRC connected state and initiating the NAS update based on the response. Other embodiments include wireless devices configured to perform such methods.

Abstract: The disclosure provides methods in a network node for a telecommunications network. In one method, the network node operates as a primary network node for a wireless terminal configured with dual connectivity, and the method comprises: receiving a message indicating that a secondary network node, which provides user plane connectivity for the wireless terminal, has no data to transmit to the wireless terminal; and based at least in part on the received message, configuring the wireless terminal in an inactive mode.

Abstract: Methods may be provided to operate a wireless terminal in communication with a base station. Such methods may include receiving a Radio Resource Control RRC message from the base station, wherein the RRC message includes information regarding at least one Quality of Service, QoS, flow being reflective and/or non-reflective. Such methods may also include providing communication of a data packet between the wireless terminal and the base station using a non-reflective QoS flow, wherein the data packet includes a data field and a Service Data Application Protocol SDAP header field with a QoS Flow Identity QFI, and wherein the QFI is used for the data packet based on the information from the RRC message. Methods of operating base stations and core network nodes may also be provided. Related wireless terminals, base stations, and core network nodes are also discussed.