Abstract: A method is provided by a wireless device for performing reconfiguration and/or resumption of a radio resource control, RRC, connections while operating in a Multi-RAT Dual Connectivity, MR-DC or standalone New Radio, NR, environment. The method includes suspending the wireless device to an inactive mode. The method further includes resuming operation of the wireless device from the inactive mode. The method further includes receiving an indication to perform one of: releasing a master cell group and perform a configuration on at least one of one or more radio bearer configurations and a secondary cell group configuration; or releasing configurations for a master cell group and a secondary cell group and perform the configuration on one or more radio bearer configurations.

Abstract: Embodiments include methods for a target node to establish a connection with a user equipment (UE) operating in dual connectivity (DC) with a PCell utilizing a first radio access technology (RAT) and with a PSCell utilizing a second RAT. Embodiments include receiving, from the UE, a re-establishment request message comprising parameters associated with the PSCell, a first message authentication code (MAC), and an indication of the UE's selection of a target cell served by the target node as a replacement for the PCell. The target cell utilizes the second RAT. Embodiments include verifying the message integrity based on the first MAC, and determining a full UE context based on the plurality of parameters associated with the PSCell and on a successful verification of the message integrity. Embodiments include establishing a connection with the UE based on the full UE context, whereby the target cell serves as a PCell for DC.

Abstract: Methods and apparatus are provided for handover of a UE (100) from a source node (20, 30) connected to a first core network (50, 60) to a target node (20, 30) connected to a second core network (50, 60). The UE (100) receives, from the source node (20, 30), a mobility command including an indication of the radio access technology (RAT) used by the target node (20, 30) and a message container containing configuration information for the target node (20, 30). The UE (100) further determines, based on the indication of the RAT used by the target node (20, 30), whether to treat the handover as an inter-RAT handover or as an intra-RAT handover with a core network change, and performs a radio resource control procedure for one of an inter-RAT handover or an intra-RAT handover with a core network change based on the determination.

Abstract: A method by an integrated access backhaul (IAB) node in a radio network includes generating a delivery status that indicates a status of a data connection, the data connection has a logical interface connection to a central unit (CU) node, the logical interface connection of the data connection is not terminated at the IAB node, and transmitting the delivery status to the CU node. The data connection may be a radio bearer.

Abstract: A radio network equipment central unit (20, 1700) receives a message (15) that indicates an update to a transport layer address of a radio network equipment distributed unit (10, 1600) from an old transport layer address (12A) to a new transport layer address (12B). The message (15) indicates the old transport layer address (12A) and indicates the new transport layer address (12B). The message (15) may be received from the radio network equipment distributed unit (10, 1600), or from a distributed unit of an integrated access backhaul donor. Regardless, for each of multiple user plane bearers or transport layer tunnels that are associated with the old transport layer address (12A), the radio network equipment central unit (20, 1700) may update a transport layer address of that bearer or tunnel from the old transport layer address (12A) to the new transport layer address (12B).

Abstract: Example embodiments presented herein are directed towards a wireless terminal and base station, and corresponding methods therein, for providing a handover for a subset of bearers associated with the wireless terminal. The subset of bearers is less than a total number of bearers associated with the wireless terminal. Thus, upon the completion of the handover procedure, at least one bearer will stay connected with a source base station.

Abstract: A relay node, configured for mapping end-user bearers to backhaul bearers for communications with a distributed unit, DU, of a donor base station, maps (2062) first end-user bearers to a first set of backhaul bearers for communications with the DU via a first mobile termination, MT, entity in the relay node, maps (2604) second end-user bearers to a second set of backhaul bearers for communications with the DU via a second MT entity in the relay node and exchanges (2606) data with the DU over the first and second sets of backhaul bearers, via the first and second MT entities, respectively.

Abstract: Configuring an adaptation layer in a relay node communicates with a central unit of a donor base station through a distributed unit of the donor base station comprises connecting to the donor base station, after establishing the connection, configuring an adaptation layer in a protocol stack for an MT part of the relay node, the adaptation layer providing for routing of incoming packets to one or more further relay nodes or to one or more user equipments, UEs, connected to the relay node and for mapping of those incoming packets to bearers, and, after configuring the adaptation layer for the MT part of the relay node, configuring an adaptation layer for the distributed unit part of the relay node for forwarding packets exchanged between the central unit of the donor base station and the first further relay node downstream of the relay node.

Abstract: A method is performed by a base station centralized unit (CU) node that is in communication, using a packet data convergence protocol (PDCP), with a user equipment (UE) via one or more intermediate integrated access backhaul (IAB) nodes of a radio access network (RAN). The CU node receives one or more PDCP packets over a radio link control (RLC) layer utilizing hop-by-hop automatic repeat request (ARQ) at each intermediate IAB node. In response to a trigger, the CU node sends an uplink (UL) data delivery status report to at least one of the intermediate IAB nodes.

Abstract: Embodiments include methods, performed by a master node (MN) in a radio access network, for establishing radio resources between a secondary node (SN) and a user equipment (UE). Such embodiments include sending, to the SN, a request identifying one or more QoS flows to be setup between the SN and the UE; and receiving, from the SN, a response including identification of one or more radio bearers that were admitted by the SN in association with the requested QoS flows. Such embodiments also include sending, to the SN, identifiers of one or more tunnels for forwarding downlink user-plane (DL UP) data over an interface between the SN and the MN. Each tunnel identifier is associated with a respective admitted radio bearer. Embodiments also include complementary methods performed by a SN, as well as network nodes configured to perform the various methods.

Abstract: According to some embodiments of the invention, a number of hops from a donor node to an integrated access backhaul relay node, IAB node, is determined (3402). The number of hops is stored (3404) for subsequent use in mapping packets to a backhaul bearer between the donor node and the IAB node.

Abstract: Radio network equipment (1700) is configured to implement a radio access network, RAN, central unit (12-C). The radio network equipment (1700) is configured to decide, by the RAN central unit (12-C), which of multiple RAN distributed units (12-D1, 12-D2) is to be responsible for activating duplication of traffic of a radio bearer (16) over multiple paths (16-1, 16-2). Different ones of the RAN distributed units (12-D1, 12-D2) serve different respective ones of the multiple paths (16-1, 16-2). The radio network equipment (1700) is also configured to transmit, from the RAN central unit (12-C), control signalling (20) to each of one or more of the RAN distributed units (12-D1, 12-D2) indicating whether or not the RAN distributed unit is responsible for activating duplication of the traffic of the radio bearer (16) over the multiple paths (16-1, 16-2).

Abstract: A method by a network node is provided for handling a re-establishment request. The method includes receiving, from a wireless device, a first request for re-establishment of a connection with the network node in a first cell. The network node determines that a load on the network node exceeds a threshold amount. In response to determining that the load on the network node exceeds the threshold amount, the network node ignores the first request for re-establishment.

Abstract: According to an example embodiment a method is provided to operate a communication device. A logged MDT measurement configuration is received from a wireless communication network. An early measurement configuration is received from the wireless communication network, wherein the early measurement configuration identifies a plurality of early measurement frequencies including a first early measurement frequency. A plurality of MDT signal measurements are logged in accordance with the logged MDT measurement configuration. Measurements are performed in accordance with the early measurement configuration, wherein a signal measurement for the first early measurement frequency is not provided.

Abstract: A method (1400) is performed by a secondary base station (412, 520) in first connection with a wireless device (110) in a dual connectivity. The wireless device has a second connection with a master base station (412, 520). A first security algorithm is used for communication between the secondary base station and the wireless device in the first connection. The method comprises determining to use a second security algorithm for securing communication between the secondary base station and the wireless device. The method further comprises sending a message to the master base station, the message indicating the second security algorithm and causes the master base station to send a message to the wireless device. The message to the wireless device indicates the second security algorithm. The method further comprises using the second security algorithm to secure communication between the secondary base station and the wireless device.

Abstract: The invention relates to a method for operating an entity of a WLAN network. The method comprises the following steps. First, an access request is received from a subscriber of a mobile communications network, wherein the access request is based on a mobile network identity used in the mobile communications network to authenticate the subscriber. Then, from an authentication entity configured to authenticate a subscriber in the mobile communications network, radio resource information is received for the subscriber which comprises subscriber specific information how radio resources of a radio network part of the mobile communications network should be used. Furthermore, a radio resource usage of the subscriber in the WLAN network is determined taking into account the received radio resource information.

Abstract: Methods, systems and network devices for operating a network node to provide dual connectivity in a handover of a user equipment, UE, in a new radio telecommunications system are provided. Methods include sending, from the network node and to a target secondary node, an addition request message to allocate resources for the UE in the handover. Operations include receiving an addition request acknowledgement message from the target secondary node. The addition request acknowledgement message includes a context indication regarding a full radio resource control, RRC, context or a delta RRC context. The delta RRC context includes data that is updated relative to data in a current UE context. Operations include determining, based on context indication, a type of RRC context to provide to the target secondary node.

Abstract: A node maps end-user bearers to backhaul bearers in an adaptation layer. The node maps a plurality of end-user bearers to backhaul bearers in consideration of QoS classes for the end-user bearers and a distance from the node to a destination relay node for each of the plurality of end-user bearers, such that at least one of the backhaul bearers carries end-user bearers with different QoS classes and different distances to the destination relay node. The distance from the node to the destination relay node for at least one of the end-user bearers may be considered in terms of a number of remaining hops from the node to the destination relay node and/or in terms of an estimated end-to-end delay from the node to the destination relay node.

Abstract: Embodiments of the present disclosure include methods, performed by a first node in an integrated access backhaul (IAB) network, for flow control of data transmission from a base station to a plurality of user equipment (UEs) via the IAB network. Such embodiments can include detecting a reduction in data transmission throughput in the first node, and determining that the reduction in data transmission throughput is due to congestion in one or more particular downstream nodes in the IAB network. Such embodiments can also include sending a flow-control message to an upstream node in the IAB network, wherein the flow-control message identifies one or more nodes, in the IAB network, for which a flow-control operation is requested in relation to data transmitted from the upstream node. Other embodiments include complementary methods performed by a second node (e.g., upstream from the first node) and IAB nodes configured to perform such methods.

Abstract: Embodiments include methods for a target node to establish a connection with a user equipment (UE) operating in dual connectivity (DC) with a primary cell (PCell) served by a master node and with a primary secondary cell (PSCell) served by a secondary node. Such methods include receiving, from the UE, a re-establishment request message comprising parameters associated with the PSCell, a message authentication code, and an indication of the UE's selection of a target cell served by the target node as a replacement for the PCell, which utilizes a first radio access technology (RAT). The PSCell and the target cell utilize a different second RAT. Such methods include, based on the parameters associated with the PSCell, determining a full UE context for the UE, and establishing a connection with the UE based on the full UE context, whereby the target cell will serve as a PCell for DC.