Abstract: A method by a network node, operating as a target donor CU in an IAB network serving as a candidate donor node for a migrating IAB node and providing connectivity for a UE. A message for IAB handover including contexts of the migrating IAB node and UEs and IAB nodes directly or indirectly served by the migrating IAB node is received. Admission control is performed for the UEs and IAB nodes. A handover command to a mobile termination, MT, of the migrating IAB node, and each UE and MT of the IAB nodes is prepared. A group handover command that recursively contains handover commands of all the UEs and MTs is generated. A handover acknowledge message including a list of admitted and not admitted PDU session resources and containing the group handover command is sent. A RRC Reconfiguration Complete message is received.

Abstract: Embodiments include methods, performed by a mobile terminal (MT) of an integrated access backhaul (IAB) node in a radio access network (RAN), for reporting capabilities of cells in the RAN. Such methods include detecting one or more cells in the RAN and determining whether the one or more cells support IAB (e.g., by receiving information broadcast by the respective cells). Such methods also include sending, to a centralized unit (CU, e.g., of abase station) in the RAN, a measurement report including an indication of whether the one or more cells support IAB. Various techniques can be used to indicated IAB support. In some embodiments, the MT can receive a reconfiguration message, from the CU, for a handover to one of the cells that supports IAB. Other embodiments include complementary methods performed by CUs, as well as MTs and CUs configured to perform such methods.

Abstract: Embodiments include methods for a first radio network node (RNN) in a wireless network to configure quality of experience (QoE) measurements by user equipment (UEs). Such methods include receiving, from a measurement function in the wireless network, a QoE measurement configuration (QMC associated with one or more service types; and configuring one or more UEs with the QMC. Such methods also include sending to a second RNN in the wireless network, a first request for handover of a particular one of the UEs from a first cell served by the first RNN via a first radio access technology (RAT) to a second cell served by the second RNN via a second RAT. The first request includes the QMC. Other embodiments include complementary methods performed by a second RNN or by a UE, as well as first RNNs, second RNNs, and UEs configured to perform such methods.

Abstract: Embodiments herein relate to, for example, a method performed by a user equipment, UE, (10) for handling communication in a wireless communications network. The UE (10) receives from an upper layer an indication relating to a quality of experience, QoE, process; and applies the indication in one or more messages and/or for one or more bearers. The UE (10) applies the indication by selecting a message type and/or a bearer type to send the indication to a radio network node depending on a type of a QoE measurement and/or a criticality of the QoE measurement of the indication.

Abstract: Embodiments herein relate to, for example, a method performed by a source radio network node (140), for handling communication in a wireless communications network, wherein the source radio network node is adapted to relay data packets between a first radio network node and a UE in the wireless communications network. The source radio network node (140) transmits to a target radio network node (150,12,15) a message relating to a cell selection and/or a handover for the UE, wherein the message comprises a first user plane indication, and wherein the first user plane indication is an indication of setting up a user plane communication or not for the UE.

Abstract: A method performed by a user equipment for supporting Quality of Experience (QoE) measurements. The method comprises determining whether a QoE measurement configuration is to be applied to an application session based on an identifier relating to an application running the application session.

Abstract: A method performed by a user equipment for handling Quality of Experience (QoE) configurations is provided. The user equipment receives (VV102), from a network node, a message including a request for full configuration. The user equipment sends (VV104) one or more Attention (AT) commands from the Radio Resource Control, RRC, layer of the user equipment (120) to the application layer of the user equipment. The AT command includes at least one of: an indication to release all QoE configurations in the initial set following a mobility event, an indication to not release any of the initial set of QoE configurations following a mobility event, or an indication to set the initial set of QoE configurations on hold, a list of QoE configuration identifiers corresponding to one or more QoE configurations to be released by the user equipment following a mobility event.

Abstract: Embodiments include methods for distributing quality-of-experience (QoE) measurements performed by user equipment (UEs) in a radio access network (RAN). These methods are performed by a first network node or function (NNF) of the RAN and include receiving one or more fourth messages from a second NNF of the RAN. Each fourth message includes one or more RAN-visible QoE (RVQoE) measurement reports, each RVQoE measurement report includes one or more RVQoE metrics or values, and each RVQoE metric or value is based on QoE measurements performed by a particular UE that is associated with the first NNF. Such methods also include sending to the second NNF a first message including a request to stop sending RVQoE measurement reports to the first NNF. Other embodiments include complementary methods for the second NNF, as well as NNFs configured to perform such methods.

Abstract: Embodiments include methods for an integrated access backhaul (IAB) node in a wireless network to migrate from a first centralized unit (CU) to a second CU. Such methods include receiving a handover command from the first CU via a source parent IAB node. The handover command includes an identifier of a target cell for the handover. Such methods include determining that the handover command is for an inter-CU migration of the IAB node to the second CU and, based on determining that the handover command is for an inter-CU migration, performing modified handling of uplink and/or downlink data buffered at the IAB node until execution of the handover command. Embodiments also include complementary methods for handling migration of a child IAB node from a first CU to a second CU, as well as IAB nodes configured to perform such methods.

Abstract: A method, system and apparatus for determination of compatible resource configurations in integrated access and backhaul (IAB) migration and topological redundancy are disclosed. According to one aspect, a method in a first IAB donor node (16-2) includes receiving a first resource configuration for the first parent IAB node (16-4) from a second IAB donor node (16-1), the first parent IAB node (16-3) being in communication with a child IAB node (16-5). The method includes determining compatibility between the first resource configuration and a second resource configuration for a second parent IAB node (16-4). The method also includes determining whether to accept a request to establish a connection between the second parent IAB node (16-4) and the child IAB node (16-5) based at least in part on the compatibility determination.

Abstract: Embodiments include methods for a user equipment (UE) configured to perform quality-of-experience (QoE) measurements in a radio access network (RAN). Such methods include performing QoE measurements for one or more applications operating on a UE application layer and detecting occurrence of at least one event or condition that triggers a RAN-visible QoE(RVQoE) report. Such methods include, based on detecting the occurrence of the at least one event or condition, sending to a RAN node at least one RVQoE report that includes the following: one or more RVQoE metrics or RVQoE values, each based on the QoE measurements performed; and one or more trigger-related indications associated with the detected event or condition. Other embodiments include complementary methods for a RAN node as well as UEs and RAN nodes configured to perform such methods. FIG. 8 is selected for publication.

Abstract: Methods may be provided to operate radio access network RAN nodes in a wireless communication network. For example, resource coordination information may be transmitted from a first RAN node to a second RAN node, wherein the resource coordination information defines at least one communication resource that is available for a wireless terminal to use for sidelink communication. According to some other embodiments, resource coordination information may be received at a first RAN node from a second RAN node, wherein the resource coordination information defines at least one communication resource that is available for a wireless terminal to use for sidelink communication. Related RAN nodes, computer programs, and computer program products are also discussed.

Abstract: A method (1000) by a user equipment, UE (412), having multi-connectivity to a plurality of network nodes (410) includes receiving (1002), from at least a first network node (410A) of the plurality of network nodes, a Quality of Experience (QoE) measurement configuration comprising an indication to send an application layer indication and/or QoE report. The UE determines (1004) that the application layer indication and/or QoE report cannot be sent to the network node from which the QoE measurement configuration was received. The UE transmits (1006), to another network node (410B) of the plurality of network nodes, the application layer indication and/or QoE report.

Abstract: A performed by a first node (111). The method is for handling migration of a node. The first node (111) operates in a communications network (100). The first node (111) sends (1003) an indication to a second node (112) comprised in the communications network (100). The indication indicates a context of a third node (113). The third node (113) is comprised in the communications network (100) and is to be migrated from the first node (111) to the second node (112). The context is for control of radio resource. A content of the indication is based on whether the migration of the third node (113) is to be partial or full. The sending (1003) of the indication is performed in response to a first indication received from the second node (112). The first indication requests the context of the third node (113) from the first node (111).

Abstract: Embodiments include methods for a RAN node configured to manage configured to manage quality-of-experience (QoE) measurements by user equipment (UEs) operating in the RAN. Such methods include receiving, from a network node or function (NNF), a first number of QoE measurement collection, QMC, configurations and identifying a UE to perform QoE measurements according to the first number of QMC configurations. Such methods include selectively providing the first number of QMC configurations to the UE, based on the first number and one or more of the following: a maximum number of concurrent QMC configurations the UE can retain, respective priority levels of the first number of QMC configurations, and current signaling load in the RAN. Other embodiments include complementary methods for a UE, as well as RAN nodes and UEs configured to perform such methods.

Abstract: Embodiments include methods for a user equipment (UE) configured for application-layer measurements in a radio access network (RAN). Such methods include receiving one or more configurations of application-layer measurements to be performed by the UE while the UE is connected to the RAN and, in response to an interruption in the UE's connection to the RAN while the CE is configured to perform the application-layer measurements, sending to the RAN a request to resume the UE's connection or a request to reestablish the UE's connection. Such methods also include, in response to the request sent to the RAN, receiving from the RAN a command to setup a new connection to the RAN and in response to the command, releasing the received configurations and discarding any stored application-layer measurement reports. Other embodiments include complementary methods for RAN nodes, as well as UEs and RAN nodes configured to perform such methods.

Abstract: A method performed by an integrated access and backhaul (IAB) donor node (102, 802a, 802b) for synchronized activation of a resource configuration. The method includes determining (906), by the IAB-donor node, a synchronized update time for performing a synchronized configuration update in a plurality of parent IAB-nodes (804a, 804b) and/or a child IAB-node (806). The child IAB-node is dual-connected to the plurality of parent IAB-nodes. The method additionally includes transmitting (908), by the IAB-donor node, the synchronized update time to at least each parent IAB-node and/or the child IAB-node.

Abstract: A method (700) by a first Centralized Unit, CU1, (20) in an Integrated Access and Backhaul, IAB, network includes transmitting (702) a first message to a second CU, CU2, (30) or receiving a first message from the CU2. The first message includes information indicating that a portion of offloaded traffic is to be returned to the CU1, and the offloaded traffic was previously offloaded from the CU1 to the CU2.

Abstract: Disclosed herein is a method for interference coordination in a split gNB architecture. The method includes receiving at a central unit gNB one or more messages from one or more distributed units. Each message that is received comprises an identification of the distributed unit that sent the message and an identification of a victim distributed unit that experienced interference. The method further includes merging the one or more messages into single merged message. The method additionally includes sending the merged message to at least the victim distributed unit.

Abstract: Methods and apparatuses are disclosed for a closed-loop remote interference management framework. In one embodiment for a victim node, a method includes determining one of at least two messages corresponding to a closed-loop feedback for remote interference mitigation, the at least two messages comprising a first message and a second message, the first message providing a positive mitigation indication and the second message providing a negative mitigation indication, and transmitting the determined one of the at least two messages to another network node. In another embodiment for an aggressor node, a method includes receiving one of at least two messages corresponding to a closed-loop feedback for remote interference mitigation, and taking a remote interference mitigation action based on the received one of at least two messages.