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.

Abstract: The present disclosure relates to the field of wireless communication, and in particular to a method and arrangement for improving flow control interaction in a low latency distributed radio access network, RAN, including an upper layer RAN node and at least one lower layer RAN node. The method includes determining a Packet Data Convergence Protocol, PDCP, Protocol Data Unit, PDU, buffer dwell time target, BDTT, and providing the BDTT to the upper layer RAN node and/or the lower layer RAN node.

Abstract: According to certain embodiments, a method is provided for resource allocation between a first network node (160) associated with a first radio access technology (RAT) and a second network node (160) associated with a second RAT where the first RAT and the second RAT use an overlapping spectrum. The method includes determining, by the first network node, one or more resources of a plurality of resources for use by the second network node. The plurality of resources is represented by a bit string. A message is transmitted to the second network node. The message includes the bit string in which the one or more resources for use by the second network node are indicated.

Abstract: There is disclosed a method of operating a transmitting network node in a radio access network, the method comprising transmitting, based on determined presence of BS-to-BS interference, first reference signaling, the first reference signaling indicating that the transmitting network node is a victim node of the BS-to-BS interference. The disclosure also pertains to related devices and methods.

Abstract: There is provided a method performed by a first donor distributed unit (DU) for routing traffic to a second donor DU in an Integrated Access Backhaul (IAB) network. The method may comprise: receiving an uplink (UL) packet, destined to the second donor DU, from an IAB node, which has a communication path to the second donor DU that is unavailable; appending a header pertaining to a tunnel to the UL packet; and sending the UL packet through the tunnel to the second donor DU, the tunnel being established between the first donor DU and the second donor DU.

Abstract: A method for interference coordination comprises receiving, from a first network node, a reference signal indicating that one or more second network nodes are experiencing interference. The reference signal indicates at least one identifier for the first network node and for the second network nodes. The method further comprises preparing a remote interference management (RIM) coordination message based on the reference signal, and sending, to the first network node, the RIM coordination message to be forwarded to the second network nodes. The method provides a communication between a central aggressor network node and a central victim network node to exchange reference signal and RIM coordination information. Furthermore, the central victim network node may pass the RIM coordination message to a group of victim network nodes indicated in the RIM coordination message.

Abstract: A method, system and apparatus are disclosed. A first integrated access and backhaul, IAB, node in communication with a second IAB node, a first network node, and a second network node is provided. The first IAB node receives an instruction from at least one of the first and second network nodes, the instruction being associated with a traffic migration of traffic routed via the first IAB node, the traffic migration being from the first network node to the second network node. The first IAB node receives an uplink, UL, packet from the second IAB node, where the UL packet includes a first address indicator, and modifies the UL packet, including adding a second address indicator associated with the first IAB node to the UL packet, the modifying being based on the instruction. The first IAB node transmits the UL packet to the second network node.

Abstract: It is herein disclosed for example a method performed by a first radio network node (12) for handling communication in the wireless communications network (1). The first radio network node (12) transmits an indication to a second radio network node (16), indicating an obtained delay information for one or more channels associated with a second network node (15) that is conveying traffic that will be transmitted via the second radio network node (16), wherein the delay information indicates a delay between at least a plurality of network nodes. The first radio network node further receives a response from the second radio network node (16) indicating confirmation or rejection to be able to meet a requirement of delay as indicated by said transmitted indication.

Abstract: A method (1800) by a network node (160) operating as a first donor node for a wireless device (110) includes transmitting (1802), to the second donor node (160), a first message requesting a revocation of traffic offloading from the first donor node to the second donor node. Likewise, a network node (160) operating as the second donor node receives the first message requesting the revocation of traffic offloading from the first donor node to the second donor node.

Abstract: Embodiments include methods for a source donor centralized unit (CU) in an integrated access backhaul (IAB) wireless network. Such methods include determining that traffic between the source donor CU and a top-level IAB node in the wireless network needs to be offloaded to a target donor CU in the wireless network. Such methods include sending, to one or more descendant nodes of the source donor CU, a first indication that at least one configuration for traffic between the source donor CU and at least one IAB node is suspended, in association with migration of the top-level IAB node from the source donor CU to the target donor CU. Other embodiments include complementary methods for a target donor CU and for an IAB node, as well as CUs and IAB nodes configured to perform such methods.