Abstract: A method performed by a first integrated access backhaul, IAB, node (12A). The first IAB node (12A) receives, from an IAB donor (14), signaling (19) that indicates which one or more possible values (18-1 . . . 18-X) of a field (18) are mapped to which one or more possible values (20-1 . . . 20-M) of a multiplexing adaptation parameter (20). In some embodiments, the multiplexing adaptation parameter (20) facilitates or governs adaptation of in which multiplexing mode, if any, a multiplexing IAB node operates for multiplexing communication on a parent IAB link with communication on a child IAB link. The first IAB node (12A) also transmits to, or receives from, a second IAB node (12B) a message (16) that includes the field (18) set to one of the one or more possible values (18-1 . . . 18-X) of the field (18) indicated by the signaling (19). In some embodiments, the multiplexing IAB node is the first IAB node (12A) or the second IAB node (12B).

Abstract: Systems and methods for joint-repeater-UE beam reporting in repeater-assisted networks are provided. In some embodiments, a method performed by a wireless network node for monitoring a connection to a UE through a repeater node includes: configuring the UE with one or more beam reports containing reference signals for evaluating one or more links between one or more of the group consisting of: the wireless network node, the repeater, and the UE; triggering one or more of the configured beam reports; transmitting one or more configured reference signals associated with the triggered beam reports; and receiving the one or more beam reports. In this way, overhead-efficient methods are provided for radio link monitoring in the presence of a repeater node to activate the beam and/or link recovery process.

Abstract: There is provided a method performed by a network node for configuring dynamic behavior of a spatial filter of a repeater node. The method comprises configuring the repeater node with one or more higher layer parameters. The one or more higher layer parameters define one or more beam time states. The method further comprises sending a dynamic indication to the repeater node indicating a beam and an associated beam time state. There is further provided a method performed by a repeater node. The method comprises receiving signaling, from a network node, configuring the repeater node with one or more higher layer parameters. The one or more higher layer parameters define one or more beam time states. The method further comprises receiving, from the network node, a dynamic indication indicating a beam and an associated beam time state.

Abstract: A method and network node having integrated access and backhaul (IAB) functionality are disclosed. According to one aspect, a network node determines information concerning at least one of: (i) an impairment of a first signal from a first integrated access backhaul node that is caused by a second signal from a second IAB node and (ii) an impairment of the second signal that is caused by the first signal. The network node further selects a multiplexing capability for the network node based at least in part on the determined information concerning at least one of the impairments and further multiplexes signals for the first and second IAB nodes using the selected multiplexing capability.

Abstract: A method performed by a network node in a wireless network is provided for configuring periodic behavior of a repeater beam of a repeater node. The method comprises indicating, to the repeater node, a beam to use and indicating, to the repeater node, a beam time-domain state associated with the indicated beam. There is further provided a method in a repeater node. The method comprises receiving an indication, from the network node, of a beam to use and receiving an indication, from the network node, of a beam time-domain state associated with the indicated beam.

Abstract: There is disclosed a method of operating an Integrated Access and Backhaul (IAB) node (200, C, N3) in a radio access network, the IAB node (200, C, N3) being connected to a first parent IAB node (200, N1, P) via a first backhaul link having a first timing, and being connected to a second parent IAB node (200, N2, P) via a second backhaul link having a second timing, the IAB node (200, C, N3) providing a communication link for access or backhaul, the communication link having a communication timing based on the first timing and the second timing. The disclosure also pertains to related methods and devices.

Abstract: Methods and apparatus are provided for determining timing of resources in an integrated access and backhaul, IAB, node (200). In one example, a method (1300), is performed by an integrated access and backhaul, IAB, node (200), the method comprising: determining (s1302) one or more timing offset for a time resource, the offset being in relation to a mobile termination, MT, and a distributed unit, DU, resource of the IAB node, and providing (s1304) to a parent IAB node (300), information related to the one or more timing offset of the IAB node.

Abstract: Embodiments include methods performed by an integrated access backhaul (JAB) node configured for operation in an IAB network. Such methods include receiving, from an upstream node in the IAB network, first timing offset information related to communications between the IAB node and the upstream node. Such methods include transmitting a downlink (DL) signal to one or more downstream nodes in the IAB network. The DL signal is transmitted according to a DL transmission timing determined from the following: the IAB node's DL reception timing of a DL signal received from the upstream node; and a second timing value determined based on a first function of the first timing offset information, when the first function of the first timing offset information is greater than a threshold. Other embodiments also include IAB nodes configured to perform such methods.

Abstract: According to some embodiments, an integrated access and backhaul, IAB, network node comprises an IAB distributed unit, DU, and an IAB mobile termination, MT. A method performed by the IAB network node comprises receiving an availability indication at the IAB-MT, determining an IAB-DU soft resource availability based on the received availability indication, and transmitting or receiving according to the determined IAB-DU soft resource availability.

Abstract: There is disclosed a method of operating an Integrated Access and Backhaul (IAB) node (200, C, N3) in a wireless communication network, the IAB node being in a communication link with a second IAB node using a signaling beam, the IAB node further being scheduled to perform beam sweeping with a plurality of synchronisation beams, one of the synchronisation beams corresponding to the signaling beam; wherein a synchronisation beam is scheduled to carry synchronisation signaling; and wherein the method comprises performing beam sweeping such that the synchronisation beam corresponding to the signaling beam carries information signaling replacing the synchronisation signaling at least in part. The disclosure also pertains to related methods and devices.

Abstract: There is disclosed a method of operating an Integrated Access and Backhaul (IAB) node in a radio access network, the IAB node being connected to a first parent IAB node via a first backhaul link, the method including communicating with one or more child nodes based on a downlink timing, the downlink timing being based on a function of one or more values of a first timing parameter, the values of the first timing parameter being indicated by corresponding first timing indicators received from the first parent IAB node and/or one or more values of a second timing parameter, the values of the second timing parameter being indicated by corresponding second timing indicators received from the first parent IAB node. The disclosure also pertains to related methods and devices.

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: Embodiments include methods for a first network node configured to operate as a child node of a second network node in an integrated access backhaul (IAB) network. Such methods include receiving, from the second network node, an indication (T?-mode) of a timing offset between the second network node's downlink (DL) transmission timing and the second network node's uplink (UL) reception timing. Such methods include determining the following based on the indication: a particular timing mode (Tmode) used for communication between the first and second network nodes, with Tmode being one of a plurality of available timing modes; and a particular timing offset (T?) applicable to Tmode. Such methods include adjusting the first network node's DL transmission timing based on T?. Other embodiments include complementary methods for a second network node configured to operate as a parent node, as well as network nodes configured to perform such methods.

Abstract: Providing uplink (UL) power control in Integrated Access and Backhaul (IAB) nodes is disclosed herein. In one embodiment of a method performed in a network node for signaling a transmission power dynamic range of its IAB Mobile Termination (IAB-MT) to a second network node, the method comprises determining at least one dynamic range between two transmission power values. The method further comprises transmitting a dynamic range report to the second network node, wherein the dynamic range report comprises the at least one dynamic range.

Abstract: Systems and methods are disclosed for spatial domain simultaneous operation in an Integrated Access and Backhaul (IAB) node. In one embodiment, a method performed by an IAB-node for spatial domain simultaneous operation with a parent IAB-node and a child IAB-node or a wireless communication device (WCD) comprises transmitting reference signals in reference transmit beams and receiving, from the parent IAB-node, a beam restriction configuration related to the reference transmit beams, the beam restriction configuration comprising information that indicates a set of restricted beams for simultaneous spatial domain operation. Corresponding embodiments of an IAB-node are also disclosed. Embodiments of a parent IAB-node and embodiments of a method of operation thereof are also disclosed.

Abstract: Systems and methods for configuration of Integrated Access and Backhaul (IAB) frequency-domain resource utilization are disclosed. In one embodiment, a method performed by a network node that implements a centralized network function unit for frequency-domain resource utilization configuration of an IAB node comprises determining a configurable frequency part size(s) for a frequency-domain resource utilization configuration of an IAB node and determining a mode of frequency-domain resource utilization for each of at least some of a plurality of frequency parts of an available bandwidth of the IAB node, the available bandwidth being divided into the plurality of frequency parts in accordance with the configurable frequency part size(s). The method further comprises sending the frequency-domain resource utilization configuration to the IAB node.

Abstract: A method, performed by a first node (111). The method is for handling access to a communications network (100) in a multi-hop deployment. The first node receives (305), from a fourth node (114), information. The information indicates a recommendation on which node within radio range to connect to, out of a plurality of candidate parent nodes (120). The plurality comprises a first set (121) and a second set (122) of candidate parent nodes. A third node (113) is enabled to be a donor node in the first set (121). A sixth node (116) is enabled to be a donor node in the second set (122). The first node also determines (307), out of the plurality, a second node (112) to establish a connection with. The determining (307) is based on the received information. The first node then initiates (308) establishment of a connection or re-connection to the network via the second node (112), as first-hop.

Abstract: Systems and methods for reducing signaling overhead between an Integrated Access and Backhaul (IAB) node and its parent node when switching between timing alignment cases are disclosed. In some embodiments, the method comprises sending one or more sets of desired numbers of guard symbols for two or more timing switching groups, respectively. The method further comprises receiving one or more sets of provided numbers of guard symbols for the two or more timing switching groups, respectively and determining available time resources for uplink transmission and/or downlink reception in two adjacent time units based on one of the one or more sets of provided numbers of guard symbols for one of the two or more timing switching groups that corresponds to timing alignment cases used in the two adjacent time units.

Abstract: A network function unit (e.g., an Integrated Access and Backhaul-donor node Central Unit, IAB-donor-CU 300, an Operations Administration and Maintenance node, OAM node, or a parent node 200) configures space-domain resources in an IAB-node 100 (e.g., an IAB-Distribution Unit DU 110) with different resource sets. Each resource set may restrict certain behavior (e.g., the operation of the access unit) of the IAB-node in terms of transmission and/or reception in a certain spatial radio resource, e.g., the one or more direction units (e.g., a radio beam).

Abstract: A method, system and apparatus are disclosed. In one or more embodiments, a network node configured to communicate with a wireless device (WD) is provided. The network node configured to, and/or including a radio interface and/or including processing circuitry configured to: receive information indicating a timing offset (T??), determine transmission timing for downlink transmission based on the timing offset (T??) and at least one estimated timing value, and perform downlink transmission based on the determine transmission timing.