Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for first integrated access and backhaul (IAB) node establishing a signaling connection with an IAB donor node and a sidelink connection with a second IAB node or a user equipment (UE). The first IAB node may include a mobile termination unit and a distributed unit and may support sidelink communications. In some cases, the first IAB node may report an indication of sidelink communications support, receive an indication of sidelink communication authorization, and receive sidelink configuration information. The first IAB node may transmit one or more data messages to the IAB donor on the signaling connection and transmit one or more data messages to the second IAB node or the UE via the sidelink connection.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive downlink assistance information relating to beam-specific paging. The UE may transmit uplink assistance information relating to the beam-specific paging. The UE may monitor for a paging message on one or more beams in accordance with at least one of the downlink assistance information or the uplink assistance information. 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 user equipment (UE) may receive an indication, configuration, or adaptation of a triggering condition. The UE may evaluate a performance effect based, at least in part, on the triggering condition. The UE may initiate a handover procedure from a source cell to a target cell based, at least in part, on the performance effect. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of a network energy saving (NES) conditional handover threshold. The UE may monitor one or more received signals based at least in part on the NES conditional handover threshold. Numerous other aspects are described.

Abstract: Certain aspects of the present disclosure provide techniques for acquiring location information of an assisting node, such as an assisting transmission and reception point (TRP). The location information may include geographical location information as well as spatial information. The location information may be used to facilitate positioning and other purposes, such as beam management, interference management, and sensing between one or more assisting TRPs and one or more network entities (e.g., a gNodeB (gNB), a user equipment (UE), a central unit (CU), or a distributed unit (DU)). To achieve these purposes, accurate locations of the assisting TRPs are needed. The present disclosure provides techniques for acquiring and exchanging the accurate location information of such assisting TRPs.

Abstract: In an aspect, a parent node sends a conditional grant for UL transmission to an IAB MT of IAB node. A triggering event for the conditional grant is based at least in part on a communication status of IAB DU of the IAB node (e.g., whether IAB DU is receiving or transmitting data, depending on IAB node duplex capability). In another aspect, IAB DU of IAB node sends a conditional grant for DL transmission to child node. A triggering event for the conditional grant is based at least in part on a communication status of IAB MT of the IAB node (e.g., whether IAB MT is receiving or transmitting data, depending on IAB node duplex capability).

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: Methods, systems, and devices for wireless communication are described. A wireless device may transmit first control signaling indicating a capability of the wireless device to operate in a plurality of modes of operation. The plurality of modes of operation including a first mode of operation associated with repeater operations and a first energy level and a second mode of operation associated with integrated access and backhaul (IAB) operations and a second energy level higher than the first energy level. The wireless device may receive second control signaling indicating at least one mode of operation of the plurality of modes of operation, and communicate one or more wireless signals according to the at least one mode of operation at the wireless device.

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for a first user equipment (UE) receiving, from an integrated access and backhaul (IAB) node, an indication that the IAB node supports sidelink communications. The indication may be broadcast by the IAB node or indicated via an established connection, such as a radio resource control (RRC) connection. The first UE may select the IAB node to relay communications between the first UE and a second wireless node based at least in part on the indication that the IAB node supports sidelink communications. The UE may communicate one or more data messages with the second wireless node via the IAB node in accordance the selecting of the IAB node to relay the communications.

Abstract: Methods, systems, and devices for wireless communication are described. The method may include a first network entity receiving, from a repeater device, a report that indicates signal measurements associated with a first cell and transmitting, based at least in part on the report, a first signal that indicates to adjust transmission of synchronization signal blocks (SSB) by a second network entity using the first cell. Further, the method may include transmitting, based at least in part on the first signal, a second signal that indicates to perform a handover operation for the repeater device from a second cell to the first cell.

Abstract: Method and apparatus to rewrite BAP headers in IAB networks. The apparatus receives, from a second base station, a routing configuration indicating a mapping between a first routing ID and a second routing ID. The apparatus receives a packet with a packet header indicating the first routing ID. The apparatus determines the second routing ID based on the routing configuration mapping the first routing ID in the packet header to the second routing ID. The apparatus modifies, based on a determination of the second routing ID, the packet header to replace the first routing ID with the second routing ID. The apparatus transmits the packet based on the second routing ID.

Abstract: Methods, systems, and devices for wireless communications are described. For example, a source distributed unit (DU) may receive, from a user equipment (UE), a measurement report indicating at least one transmission configuration indicator state (TCI) state associated with a target DU. The source DU may transmit, to the target DU, an indication of a set of candidate TCI states from the at least one TCI state for a dynamic cell switch of the UE from a source cell of the source DU to a target cell of the target DU. As such, the UE may transmit, to the target DU, a random access message or an uplink message in accordance with a first TCI state from the set of candidate TCI states.

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for a central unit (CU) and a distributed unit (DU) to communicate information for a network energy savings (NES) related conditional handover (CHO). For example, the CU, which may configure one or more user equipments (UEs) for the CHO, may indicate which UEs are configured to the DU, which may serve the UEs via Layer-1 (L1) signaling. The CU may further indicate which of the configured UEs are to perform the NES related CHO, which may be determined according to measurement reports from the configured UEs. In some examples, the DU may trigger the NES related CHO for UEs associated with measurement reports that satisfy an NES-specific threshold value, which may support the CU and the DU transitioning to the NES mode.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network-controlled repeater (NCR) may receive, by an NCR mobile termination (NCR-MT) and via a control link, control information. The NCR may release, by the NCR-MT, a radio resource control (RRC) connection of the NCR-MT with a network node. The NCR may perform, by an NCR forward (NCR-Fwd), a radio frequency (RF) signal forwarding to the network node via a backhaul beam based at least in part on the control information. The NCR may cease the RF signal forwarding on the backhaul beam based at least in part on an evaluation of a condition associated with the backhaul beam for the RF signal forwarding to the network node. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless node may receive an indication of a first periodic resource associated with the wireless node, wherein the first periodic resource is associated with one or more parameters for coordinating periodic resources or a priority flag that indicates that the first periodic resource is available to the wireless node irrespective of a resource type associated with the first periodic resource. The wireless node may communicate, with a child node or another wireless node, a message using a modified first periodic resource, wherein the modified first periodic resource includes a modified resource allocation associated with the first periodic resource or a modified resource type associated with first periodic resource. Numerous other aspects are provided.

Abstract: In an integrated access backhaul (IAB) network, a third network node sends quality of service (QOS) mapping information to a first network node to configure an internet protocol (IP) header for a packet based on a traffic type and to transmit the packet. The third network node sends a mapping configuration to a second network node to map information in the IP header for the packet received in a first routing path from the first network node to a second routing path. The first network node receives the QoS mapping information and generates a packet associated with the traffic type and including an IP header, which is configured based on the received QoS mapping information. The first network node transmits the packet for routing to the second network node.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may initiate a first random access channel (RACH) procedure with a serving cell of the UE. The UE may receive, prior to terminating the first RACH procedure, a trigger for a second RACH procedure with a candidate cell of the UE. The UE may initiate the second RACH procedure with the candidate cell. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a random access channel (RACH) message to a first distributed unit (DU) via a cell supported by the first DU to support acquisition of timing advance (TA) information prior to switching to the cell. A second DU serving the UE may identify and indicate the TA information to the UE based on the UE transmitting the RACH message indicating a RACH preamble allocated to the second DU by a central unit (CU). The RACH preamble may be included in a set of preambles indicated to the CU by the first DU for TA information acquisition. Alternatively, the UE may be identified by the first DU based on a UE-specific RACH preamble, a RACH preamble, RACH occasion (RO) pair, or a request by the second DU to order the UE to transmit the RACH message.

Abstract: Methods, systems, and devices for wireless communications are described. Techniques described herein support transitioning the radio resource control (RRC) state of a network controlled repeater (NCR). A distributed unit (DU) and a central unit (CU) may coordinate the release and resumption of the RRC connection of the NCR. The CU may transmit a control signal to the DU indicating to release the RRC connection of the NCR. The control signal may include a flag, such as an identifier of the NCR, and the DU may retain the identifier of the NCR. The DU may transmit a message indicating a release of the RRC connection to the NCR. The DU may coordinate the resumption of the RRC connection of the NCR by transmitting a second message to the CU. The second message may include a request to initiate a paging of the NCR and may include the identifier of the NCR.