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: A network node is described. The network node includes a radio interface configured to receive a first resource configuration associated with a first multiplexing capability and a second resource configuration associated with a second multiplexing capability; and receive signaling activating one of a first multiplexing mode and a second multiplexing mode. The network node further includes processing circuitry in communication with the radio interface, where the processing circuitry configured to determine whether to use the activated one of the first multiplexing mode and the second multiplexing mode based at least on one of the first multiplexing mode, the second multiplexing mode, the first resource configuration, the second resource configuration, and a fallback condition; and use one of the first resource configuration and the second resource configuration based on the determination.

Abstract: A method, system and apparatus for resource block (RB) set configuration in an integrated access and backhaul (IAB) network for frequency domain resources are disclosed. According to one aspect, a method in an IAB donor node in communication with a first IAB node includes receiving a resource multiplexing capability from the first IAB node. The method includes determining a resource block, RB, set configuration based at least in part on the resource multiplexing capability. The method further includes determining a DU resource configuration for the first IAB node based at least in part on the RB set configuration; and transmitting the DU resource configuration to the first IAB node.

Abstract: Systems and methods for adaptive simultaneous reception in an Integrated Access and Backhaul (IAB) network are provided. A method performed by an IAB node includes obtaining channel quality or received signal power for each of two or more transmitting nodes at the IAB node and selecting a combination of scheduling configurations for the transmitting nodes based on the channel qualities or received signal powers. The combination of scheduling configurations includes a multiple access scheme for the transmitting nodes selected from a set of multiple access schemes including one or more multiple access schemes that enable simultaneous reception and one or more multiple access schemes that enable non-simultaneous reception. The method further includes transmitting one or more messages to the transmitting nodes that provide information for configuration of or request the transmitting nodes to transmit signals to the IAB node and receiving signals from the transmitting nodes.

Abstract: A method, system and apparatus are provided. In one embodiment, an IAB node is provided. The IAB node includes processing circuitry configured to determine at least one restricted beam for an IAB-distributed unit, IAB-DU, of a child IAB node when operating in spatial division multiplexing, SDM, and indicate the at least one restricted beam for configuring the child IAB node where the indication of the at least one restricted beam corresponds to a deactivation of a Transmission Configuration Indicator, TCI state, which would be available when operating in time division multiplexing, TDM.

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: Methods and apparatus are provided. In an example aspect, a method performed by a first wireless communication device of establishing a connection for wireless communication is provided. The method includes receiving, on a first wireless communications channel, information about a reflective surface. The method also includes establishing, based on the information about the reflective surface, the connection for wireless communication with a second wireless communication device via the reflective surface on a second wireless communications channel, wherein the second wireless communications channel is different to the first wireless communications channel.

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: Embodiments include methods for an integrated access backhaul (IAB) node serving a cell in a wireless network. The IAB node can include an IAB distributed unit (IAB-DU) and an IAB mobile terminal (IAB-MT). Such methods include sending, to an IAB donor centralized unit (CU) in the wireless network, an indication of one or more simultaneous operation capabilities of the IAB-DU and the IAB-MIT and receiving from the IAB donor CU a multiplexing configuration based on the simultaneous operation capabilities. Such methods also include configuring one or more of the following for operation in the cell according to the received multiplexing configuration: one or more child IAB nodes; and one or more user equipment (UEs). Other embodiments include complementary methods for an IAB donor CU and a parent IAB node of the IAB node, as well as IAB nodes and IAB donor CUs configured to perform such methods.

Abstract: Systems and methods for configuring wake-up signals are provided. A network node allocates a first wake-up signal (WUS) at a first frequency location and one or more second WUSs at second frequency location(s). Responsive to receiving a page associated with a wireless device, the network node transmits the appropriate first or second WUS on the configured frequency.

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: According to some embodiments, a method is performed by an integrated access and backhaul (IAB) node in dual connectivity where an IAB-MT is connected to two IAB parents and two IAB donors. The method comprises: obtaining (1212) a semi-static flexible resource configuration from an IAB donor; obtaining (1214) a first uplink/downlink resource indication for a semi-statically configured flexible resource from a first IAB parent and a second uplink/downlink resource indication from a second IAB parent; obtaining (1216) a priority associated with the first IAB parent and a priority associated with the second IAB parent; determining (1218) the first and second uplink/downlink resource indications conflict; selecting (1220) one of the first and second uplink/downlink resource indications based on the priority associated with the first and second IAB parents; and communicating (1222) with the two IAB parents according to the selected uplink/downlink resource indication.

Abstract: Mechanisms for performing a channel information estimation procedure. A method is performed by a network node. The network node serves a user equipment via a meta-surface over a radio propagation channel. The method comprises includes performing the channel information estimation procedure. The channel information estimation procedure involves compensation for configurations used by the meta-surface. The compensation pertains to estimation of channel quality of the radio propagation channel between the user equipment and the network node via the meta-surface. The method comprises includes performing a data transmission over the radio propagation channel. The data transmission is performed with transmission settings as determined by the channel information estimation procedure.

Abstract: A technique for performing neighbor cell measurements for one or more cells of a cellular radio access network, RAN, is provided. As to a method aspect, a method (200) comprises or triggers a step of detecting (202) at least two neighbor cells of the RAN, wherein at least one of the detected neighbor cells is in a neighbor cell list, NCL, of the RAN, and wherein at least one of the detected neighbor cells Is not in the NCL of the RAN. The method (200) further comprises a step of measuring (204), for each of one or more of the detected cells of the RAN, a measurement signal (300) from the respective cell. The method (200) still further comprises a step of estimating (206), for each of the one or more of the detected cells of the RAN, a radio signal value based on the measured measurement signal (300) from the respective cell.

Abstract: There is disclosed a method of operating an Integrated Access and Backhaul, IAB, parent node for a wireless communication network. The method includes transmitting, to an Integrated Access and Backhaul, IAB, child node, an indication of the availability of soft frequency resources. The disclosure also pertains to related methods and devices, e.g. pertaining to an Integrated Access and Backhaul child node, or a program product.

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, system and network node are disclosed. According to one or more embodiments, a parent network node configured to communicate with a network node is provided. The parent network node is configured to, and/or includes a radio interface and/or includes processing circuitry configured to: enable a first timing configuration, wherein the first timing configuration enables downlink transmission timing for the network node to be aligned with the downlink transmission timing of the parent network node; and based on the first timing configuration, switch to a second timing configuration, wherein the second timing configuration enables uplink transmission timing of the network node to be aligned with the downlink transmission timing of the network node.

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: Systems and methods are disclosed herein that relate to a wireless device that intelligently uses different reference crystal oscillators (XOs) for a Phase Locked Loop(s) (PLL(s)) in a transceiver of the wireless device. Embodiments of a method of operation of a wireless device comprising a first XO that operates at a first reference frequency and a second XO that operates at a second reference frequency that is greater than the first reference frequency are disclosed. In some embodiments, the method of operation of the wireless devices comprises deciding whether to configure a receiver of the wireless device to use the first XO or the second XO and configuring the receiver of the wireless device to use the first XO or the second XO in accordance with the decision.