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: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a relay entity may establish a wireless communication session with a network entity associated with a visited public land mobile network (VPLMN), wherein the relay entity is configured to perform access node functions and user equipment (UE) functions, and wherein establishing the wireless communication session includes enabling wireless communication for both the access node functions and the UE functions via the VPLMN. The relay entity may perform a relay service via the access node functions. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. An access node may establish a signaling connection (e.g., an F1 connection) with a first central unit (CU) and establish a radio resource control (RRC) connection with a second CU, where the signaling connection may be used for backhauling of communications for user equipments (UEs) served by the access node. The first CU may transmit to the access node a first indication associated with suspension of the backhauling of the communications via the signaling connection. Additionally, the first CU may transmit to the second CU a second indication that indicates the suspension of the backhauling of the communications via the signaling connection. As such, the second CU may transmit to the access node, a third indication that indicates for the access node to release backhaul resources for support of the communications associated with the UEs based on receiving the second indication.

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 communication are described. A user equipment (UE) may receive a first set of one or more signals and a second set of one or more signals, the first set of one or more signals indicating a first code value associated with a physical cell identifier (PCI), and the second set of one or more signals indicating a second code value associated with the PCI. The UE may receive, based at least in part on the first code value and the second code value, a third set of one or more signals indicating a third code value associated with the PCI. The UE may communicate one or more wireless communications with a first cell according to a physical cell identity of the first cell, where the physical cell identity is encoded by the first code value, the second code value, and the third code value.

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive, via a cell with a physical cell identity, first signaling that indicates a first physical cell identifier (PCI) value of a PCI sequence and a code value associated with the PCI sequence for the cell. The UE may receive, via the cell with the physical cell identity, second signaling that indicates a second PCI value of the PCI sequence and the code value associated with the PCI sequence for the cell. The UE may perform, via the cell with the physical cell identity, one or more wireless communications in association with determining the physical cell identity of the cell based on the code value and the PCI sequence comprising the first PCI value and the second PCI value (which may be a function of the first PCI value and the code value).

Abstract: Methods, systems, and devices for fast physical cell identifier (PCI) conflict detection are described. A user equipment (UE) may receive, via a serving cell, a first set of one or more signals indicating a first PCI of the serving cell. After receiving the first set of one or more signals, the UE may receive a control message indicating that the first PCI of the serving cell is changing to a second PCI. The UE may monitor for a second set of one or more signals indicating the second PCI based at least in part on the control message. The UE may receive the second set of one or more signals indicating the second PCI based on the control message, and communicate one or more messages with the serving cell based on the second PCI.

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: Methods, systems, and devices for wireless communications are described. A mobile integrated access and backhaul (IAB) node may transmit, to an IAB supported network, an indication of IAB capability. The mobile IAB node may also indicate to the IAB supported network a mobility status associated with the mobile IAB node. The IAB supported network may conditionally determine authorization for the mobile IAB node based on the mobility status, a subscription status, or both. The IAB supported network may transmit, to the mobile IAB node, instruction to operate in an IAB mode and perform the IAB operation. The mobile IAB node may communicate with one or more devices based on the instruction.

Abstract: Methods, systems, and devices for mobile integrated access and backhaul procedures based on interface availability are described. Some examples may provide approaches for blocking at least a portion of mobile Integrated Access and Backhaul (IAB) procedures when Xn connectivity is unavailable. Some aspects of the techniques may be performed in the context of mobile IAB node integration. For example, a second central unit (CU) may determine if Xn connectivity is available with a first CU. In a case that Xn connectivity is unavailable, the second CU may reject an F1 connection setup request or the second CU may accept the F1 connection setup request and trigger a DU migration to a different CU. Some aspects of the techniques may be performed in the context of mobile IAB-mobile termination (MT) migration. Some aspects of the techniques may be performed in the context of mobile IAB-distributed unit (DU) migration.

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive first information indicative of a first internet protocol address. The UE may transmit a non-access stratum (NAS) request to a core network service to establish a protocol data unit session using the first internet protocol address and a user plane protocol stack. The UE may receive, from the core network service using the first internet protocol address and the user plane protocol stack, a NAS response including second information indicative of a second internet protocol address. The UE may transmit NAS information to the core network service using the first internet protocol address and the user plane protocol stack, and first data information associated with the protocol data unit session using the second internet protocol address and the user plane protocol stack.

Abstract: In certain aspects, the disclosure is directed to a user equipment (UE) configured for wireless communications with a network node. The UE may include a memory comprising instructions, and one or more processors configured to execute the instructions. In some examples, the UE may transmit, to a network node, an indication of an expected communication. In some examples, the UE may receive, from the network node, updated scheduling in response to the indication of the expected communication. For example, the UE may predict a future sidelink/uplink communication based on whether the UE expects data for a future uplink transmission. If the UE expects that it will have data for a future uplink transmission, the UE may notify the network node so that the network node can enter into a low power state until the future transmission, then provide the UE with a sidelink/uplink grant for the future uplink transmission.

Abstract: Methods, systems, and devices for wireless communications are described that provide for hop-count indication in an integrated access and backhaul (IAB) network. An IAB-node may adopt and indicate multiple values for hop-count. The hop-count may be conveyed by a number of different reference signals and channels. A resource pattern and/or a slot pattern may also be associated with the hop-count to simply signaling. By associating the patterns with the hop-count, an IAB-node may be able to infer the resource pattern used by another IAB-node.

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: Methods, systems, and devices for wireless communication are described. A base station may transmit a paging indicator message to one or more user equipment (UEs) in a group of UEs. The base station may receive, based at least in part on the paging indicator message, a first response message from the one or more UEs. The first response message may be received using a resource that is shared with a random access channel message for the group of UEs. The base station may transmit, based at least in part on the first response message, a second response message to the one or more UEs.

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: Aspects of the disclosure are directed to a lower layer split for a radio access network (RAN) node. In some examples, the number of tiers for the user plane path may be reduced from three to two, which may include redistribution of functionality of a central unit user plane (CU-UP) between two network entities. In some examples, a first network entity of the two network entities may be configured to receive, from a second network entity of the two network entities, a first user plane protocol data unit (UP-PDU) associated with a user plane (UP) protocol session. In some examples, the first UP-PDU includes a first identifier configured to identify the tunnel, a second identifier configured to identify the first flow of UP-PDUs, a third identifier configured to identify the first UP-PDU within the first flow of UP-PDUs, and a first data for transmission to a user equipment (UE).

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.