Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first integrated access and backhaul (IAB) donor central unit (CU) may transmit, to a second IAB donor CU, a resource configuration of a first cell served by an IAB node to initiate a migration of the IAB node from a first parent node to a second parent node serving a second cell associated with the second IAB donor CU. The first IAB donor CU may receive, from the second IAB donor CU, an indication that communications performed by the IAB node associated with the first cell will not conflict with communications with the second parent node serving the second cell. The first IAB donor CU may migrate the IAB node to the second parent node based at least in part on the indication. Numerous other aspects are described.

Abstract: Aspects described herein relate to providing dynamic frequency division multiplexing (FDM) within a component carrier (CC) for use by integrated access and backhaul (TAB) nodes. A configuration can be communicated for each cell of the IAB node indicating multiple resource availability combinations with each resource availability combination corresponding to resource block (RB) sets over multiple slots. A downlink control information (DCI) indicating one resource availability combination of the multiple resource availability combinations for one or more cells of the IAB node can be communicated as well. The IAB node can communicate, in a slot, over one or more RB sets of the multiple configured RB sets in symbols indicated as available by the one resource availability combination.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an integrated access and backhaul (IAB) node may receive, from a first IAB donor centralized unit (CU) via a first parent distributed unit (DU), a first indication to establish a first connection with a second parent DU associated with a second IAB donor CU. The IAB node may establish the first connection with the second parent DU. The IAB node may establish a second connection with the first IAB donor CU via the second parent DU, the first connection and the second connection forming a target path between the IAB node and the first IAB donor CU. Numerous other aspects are provided.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an integrated access and backhaul (IAB) node may receive at least part of a resource pattern of a child IAB node associated with the IAB node. The resource pattern may indicate one or more configurations of one or more resources of the child IAB node. The IAB node may communicate with the child IAB node based on the at least part of the resource pattern. Numerous other aspects are provided.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station distributed unit (DU) may configure a report that identifies a transmission timing within a radio frame for transmission of one or more cell-defining synchronization signal blocks (CD-SSBs) in a serving cell of the base station DU. The base station DU may transmit the report to a base station control unit. Numerous other aspects are provided.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a radio unit (RU) may transmit, to a controller of the RU, a message including an ordered list of coordinates corresponding to a plurality of antenna elements in an antenna array of the RU. The RU may receive, from the controller, an indication of one or more low-level endpoints associated with one or more activated antenna elements of the plurality of antenna elements. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an integrated access and backhaul (LAB) node may receive, from a first IAB donor centralized unit (CU) via a first parent distributed unit (DU), a first indication to establish a first connection with a second parent DU associated with a second LAB donor CU. The IAB node may establish the first connection with the second parent DU. The LAB node may establish a second connection with the first IAB donor CU via the second parent DU, the first connection and the second connection forming a target path between the IAB node and the first IAB donor CU. Numerous other aspects are provided.

Abstract: Aspects generally relate to wireless communication. In some aspects, an integrated access and backhaul (IAB) node may receive a configuration that indicates multiple resource patterns for one or more slots, wherein each resource pattern corresponds to a different set of one or more resource block (RB) sets within the one or more slots, and wherein each resource pattern includes at least one of: a resource availability pattern that indicates at least one of hard resources, soft resources, or not available resources for one or more RB sets corresponding to that resource pattern, or a resource directionality pattern that indicates at least one of uplink resources, downlink resources, or flexible resources for the one or more RB sets corresponding to that resource pattern. The IAB node may apply a resource pattern, of the multiple resource patterns, based at least in part on the configuration. Numerous other aspects are described.

Abstract: The present disclosure relates to methods and devices for wireless communication at a wireless device or integrated access and backhaul (IAB) node. In one aspect, the wireless device may determine a frequency synchronization accuracy for the wireless device. The wireless device may also transmit an indication of the determined frequency synchronization accuracy for the wireless device. Additionally, the wireless device may determine an absolute frequency based on a combination of measurements from at least one synchronization source and a frequency of the wireless device, where the frequency synchronization accuracy is based on the absolute frequency.

Abstract: Methods, systems, and devices for wireless communications at a first wireless node in a wireless communications system are described. The techniques may enable a first wireless node (e.g., an integrated access and backhaul (IAB) node in an IAB system) to establish a communications link with a second wireless node. The first wireless node may receive, via a reception beam of the first wireless node, an interfering signal from an aggressor wireless node. The first wireless node may perform an interference measurement of the interfering signal at the first reception beam. The first wireless node may transmit a report indicating the interference measurement to the second wireless node. The second wireless node may schedule communications based on the interference measurement. In some examples, the report may indicate one or more parameters of the interfering signal. In some examples, the report may correspond to one or more beams.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless node may transmit, to a second wireless node, a cross-link interference (CLI) management configuration message including a permutation indicator, wherein the permutation indicator indicates that an order of slot formats is an uplink-flexible-downlink order of slot formats or indicates that the order of slot formats is a downlink-flexible-uplink order of slot formats; and communicate with one or more third wireless nodes in accordance with the order of slot formats indicated to the second wireless node. Numerous other aspects are provided.

Abstract: A method, a computer-readable medium, and an apparatus are provided for wireless communication at an integrated access and backhaul (IAB) node. The IAB node receives one or more delay parameters from an IAB donor and determines an access PDB over an air link between the IAB node and a child node or a UE based in part on the one or more delay parameters received from the IAB donor.

Abstract: Aspects of the present disclosure provide techniques for beam and cell selection based on power configuration of a wireless node (e.g., an Integrated Access and Backhaul (IAB) node). In some cases, the node monitors synchronization signal block (SSB) transmissions from one or more network entities, and selects a beam or cell based on the monitoring and one or more metrics designed to limit potential interference caused by uplink transmissions from the first node.

Abstract: An integrated access and backhaul (IAB) node may establish a first connection with a first base station, establish a second connection with a second base station, and receive an indication, from the first base station or the second base station, that indicates at least one of the first base station or the second base station is to serve as an IAB donor for the IAB node. The first base station may indicate to the second base station, based on the second connection being established with the IAB node, that at least one of a first base station or the second base station is to serve as an IAB donor for the IAB node.

Abstract: A method of wireless communication by an integrated access and backhaul network (IAB) donor transmits a configuration message on a source path to a first IAB node via a first distributed unit of the IAB donor. The method also instructs the first IAB node to delay delivery of the configuration message to a second node. The method migrates at least part of communications to the first IAB node from the source path to a target path via a second distributed unit. Another method of wireless communication is executed by a first integrated access and backhaul network (IAB) node. The method receives a first configuration message over a source path to a first IAB donor via a first distributed unit of the first IAB donor. The method also delays delivery of the first configuration message to a second node until a trigger occurs.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first node of a wireless network may transmit, by a first distributed unit (DU) of the first node to a central unit (CU), a second DU of another node in the wireless network, a user equipment in the wireless network, or a child node of the first node, an indication of a suggested resource pattern for the DU. The first node may transmit or receive a communication in the wireless network based at least in part on a resource pattern that is received in connection with transmitting the indication. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an integrated access and backhaul (IAB) node may determine a set of restricted IAB-DU beams that are not to be used by the IAB-DU while a mobile termination function of the IAB node is using one or more IAB-MT beams. The determination is based on measurements related to interference caused by simultaneous operations of the IAB-DU and IAB-MT in multiplexing modes. The IAB node transmits signaling that indicates the restricted IAB-DU beams and associates the set with the IAB-MT beams. Additionally or alternatively, an IAB node can receive such signaling from a parent node, perform operations using the IAB-MT beams, and simultaneously perform operations using certain IAB-DU beams not included in the set of restricted beams. Numerous other aspects are provided.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a node may configure an operation mode associated with releasing soft resources associated with an integrated access backhaul (IAB) network that supports implicit release of soft resources and explicit release of soft resources. The node may provide information that identifies the operation mode. Numerous other aspects are provided.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first integrated access and backhaul (IAB) donor central unit (CU) may receive, from a first IAB node, an indication of a first distributed unit (DU) cell resource configuration for communications corresponding to a first cell that is associated with a second IAB donor CU. The IAB donor CU may transmit, to a second IAB node, an indication of a second DU cell resource configuration for communications corresponding to a second cell, wherein the second DU cell resource configuration is based at least in part on the first DU cell resource configuration and a multiplexing constraint associated with communications corresponding to the first cell and communications corresponding to the second cell. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless node may transmit, to a second wireless node, a cross-link interference (CLI) management configuration message including a permutation indicator, wherein the permutation indicator indicates that an order of slot formats is an uplink-flexible-downlink order of slot formats or indicates that the order of slot formats is a downlink-flexible-uplink order of slot formats; and communicate with one or more third wireless nodes in accordance with the order of slot formats indicated to the second wireless node. Numerous other aspects are provided.