Abstract: The present disclosure relates to methods and devices for wireless communication of an apparatus, e.g., a wireless device and/or a UE. In one aspect, the apparatus may receive a configuration for inter-RAT or intra-RAT sidelink carrier aggregation including one or more inter-RAT or intra-RAT CA parameters. The apparatus may also determine one or more inter-RAT or intra-RAT carriers for SL CA based on the configuration for inter-RAT or intra-RAT SL CA. The apparatus may also transmit, to at least one second wireless device, an indication of the one or more inter-RAT or intra-RAT carriers for SL CA.

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may be configured to communicate with a first base station, where the first UE is configured to relay wireless communications between a second UE and the first base station via at least a sidelink communication link between the first UE and the second UE. The first UE may receive, from the first base station, an indication for the first UE to perform a first handover procedure from the first base station to a second base station. The first UE may transmit, to the second UE via the sidelink communication link and based on receiving the indication to perform the first handover procedure, a sidelink transmission including a trigger for the second UE to perform a second handover procedure or a reselection procedure. The first UE may then communicate with the second base station based on performing the first handover procedure from the first base station to the second base station.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) and a base station may determine whether the UE is inside or outside of a vehicle with a relay device. Techniques for determining whether the UE is inside or outside of the vehicle are described herein. The UE may determine whether to camp on a cell of the relay device based on whether the UE is inside or outside the vehicle. The base station may perform connected mode mobility for the UE based on whether the UE is inside or outside the vehicle.

Abstract: Apparatus, methods, and computer-readable media for facilitating mobility in sidelink-assisted access link connectivity are disclosed herein. An example method for wireless communication at a user equipment (UE) includes establishing a sidelink connection with a first assistant node (AN) and establishing an access link connection with a first primary node (PN), the first AN and the first PN communicating via a first network interface. The example method also includes determining an occurrence of a node-change triggering event associated with at least one of the first AN and the first PN. The example method also includes performing a node-change procedure based on the occurrence of the node-change triggering event. The example method also includes communicating with at least one of a second AN or a second PN based on the node-change procedure, the second AN and the second PN communicating via a second network interface.

Abstract: Apparatus, methods, and computer-readable media for facilitating a cloud-based vehicle XR user experience are disclosed herein. An example method for wireless communication at a user equipment (UE) includes transmitting a request for a vehicle extended reality (XR) session. The vehicle XR session may be based on a first user XR stream including a vehicle XR component associated with a vehicle and a first user XR component associated with a first user. The first user may have an association with the vehicle. The example method also includes transmitting uplink information associated with the first user XR stream. The example method also includes receiving rendering information associated with the first user XR stream. The rendering information may be based on the uplink information.

Abstract: Techniques disclosed provide for enhanced V2X communications by defining information Elements (IE) for V2X messaging between V2X entities. For a transmitting vehicle that sends a V2X message to a receiving vehicle, these IEs are indicative of a detected vehicle model type detected by the transmitting vehicle of a detected vehicle; a pitch rate of the transmitting vehicle, a detected vehicle, or a detected object; a roll rate of the transmitting vehicle, a detected vehicle, or a detected object; a yaw rate of a detected vehicle, or a detected object; a pitch rate confidence; a roll rate confidence; an indication of whether a rear brake light of a detected vehicle is on; or an indication of whether a turning signal of a detected vehicle is on; or any combination thereof. With this information, the receiving vehicle is able to make more intelligent maneuvers than otherwise available through traditional V2X messaging.

Abstract: The present disclosure provides apparatuses and methods for establishing an initial access. The apparatuses include a terminal which comprises a receiver which, in operation, is configured to receive candidate synchronization signal/physical broadcast channel blocks (SSBs) in a synchronization signal (SS) burst set, the candidate SSBs being transmitted within one or more SSB channel occupancy time (SSB COT) from a base station. The terminal further comprises a transmitter which, in operation, is configured to transmit a physical random access channel (PRACH) preamble on a PRACH occasion (RO) to the base station, the RO being associated with one SSB among the received candidate SSBs.

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a first user equipment (UE) that is out-of-coverage of a base station and a second UE that is in-coverage of the base station may support signaling exchanges for transmitting or receiving a discovery message, an essential system information block (E-SIB), common SIB updates, or on-demand SIBs within a relaying network before and after a relay connection between the first UE and the second UE. The first UE may receive the discovery message and the E-SIB via same or different signaling and may acquire or decode the E-SIB according to various techniques. The first UE may receive common SIB updates via a dedicated logical channel between the first UE and the second UE and the first UE may initiate on-demand SIB acquisition after establishment of the relay connection and based on a connection type of the first UE.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network node may receive, from a second network node, a first sidelink communication comprising second buffer status information associated with the second network node. The first network node may transmit, to a third network node, a sidelink buffer status report (BSR) indicative of the second buffer status information and first buffer status information associated with the first network node. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may receive, from a network node, an indication of first level shared information, that is shared between at least the first UE and a second UE, for deriving a security key from common sidelink information. The first UE may determine second level shared information, that is shared between the first UE and the second UE, for deriving the security key from the common sidelink information. The first UE may communicate with the second UE using the security key derived from the common sidelink information based at least in part on the first level shared information and the second level shared information. 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 transmit, to a network node, a first indication, associated with a sidelink communication, of at least one of whether sidelink carrier aggregation is supported or a first one or more component carriers associated with the sidelink communication. The UE may receive, from the network node based on transmitting the indication, a second indication that a transmission associated with the sidelink communication is to be duplicated for multiple component carriers. The UE may transmit, based on the second indication, the sidelink communication via each of a plurality of component carriers that include at least one component carrier from the first one or more component carriers. Numerous other aspects are provided.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a relay user equipment (UE) may establish a sidelink unicast link with a remote UE via a sidelink signaling interface. The relay UE may identify configuration information for an adaptation layer of the sidelink signaling interface, the configuration information including at least one of: a remote UE identifier associated with the sidelink unicast link for a relay service, bearer identifier information identifying one or more bearers between the remote UE and a network entity for the relay service, a radio link control (RLC) channel mapping between a bearer identifier and one or more RLC channels, or data routing information associated with the relay service. The relay UE may relay communications between the remote UE and the network entity based at least in part on the configuration information. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may establish, with a second UE, a first sidelink associated with a first layer 2 (L2) identifier of the second UE and a second sidelink associated with a second L2 identifier of the second UE, wherein the first L2 identifier is different than the second L2 identifier. The first UE may receive an indication associating the second UE with the first L2 identifier and the second L2 identifier. 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 relay sidelink data between a first remote UE and a second remote UE. The UE may facilitate end-to-end physical layer security for the sidelink data relayed between the first remote UE and the second remote UE based at least in part on a first link key associated with a first link between the first remote UE and the UE and a second link key associated with a second link between the UE and the second remote UE. Numerous other aspects are described.

Abstract: Methods, systems, and devices for identification reinterpretation in sidelink control information (SCI) are described. A first user equipment (UE) may transmit to a second UE or device, on a sidelink channel, SCI. The SCI may include a partial source and destination identifier fields and may indicate to the second UE to apply a first interpretation of multiple different interpretations for the partial source identifier field and the partial destination identifier field. For example, the SCI may indicate to interpret the partial source identifier field and the partial destination identifier field in combination as a source identifier field, as a destination identifier field, or as a partial source identifier and a partial destination identifier. The UE may transmit a medium access control (MAC) packet including a MAC header with identifier fields set to be complementary to the SCI.

Abstract: Methods, systems, and devices for wireless communications are described. A multicast architecture may support flexible change between unicast and multicast operations and may support additional traffic types (e.g., Internet Protocol and Ethernet traffic). For example, the multicast architecture may include transmitting data over a shared multicast radio bearer (MRB) and/or specific data radio bearers (DRBs), a multicast user plane function (UPF) for supplying the multicast data to a base station, multicast data from different radio access networks (RANs), protecting the multicast data through creating a group key, ciphering the multicast data sent on the MRB using the group key, and transitioning the multicast data from a source RAN to a target RAN.

Abstract: Aspects described herein relate to identifying a sidelink priority value of sidelink traffic to be transmitted via a sidelink channel, identifying a type of uplink traffic to be transmitted via an uplink channel, the uplink traffic is scheduled to be transmitted contemporaneously with the sidelink traffic, prioritizing, based at least in part on the identification of the type of uplink traffic being of a first type uplink traffic, the uplink traffic regardless of the sidelink priority value, and transmitting, based on prioritizing the sidelink traffic or prioritizing the uplink traffic, at least one of the sidelink traffic or the uplink traffic.

Abstract: Methods, systems, and devices for wireless communications are described. Multiple transmitting user equipments (UEs) may send sidelink data transmissions. Receiving sidelink UEs may map sidelink feedback interlaces corresponding to detected sidelink data transmissions to sidelink feedback resources of a common sidelink feedback symbol according to an interlace mapping rule (e.g., defining which contiguous or non-contiguous frequency resources the UE is to use for transmitting sidelink feedback for the received sidelink data messages). The receiving UEs may map one or more replicas of initial interlaces of sidelink feedback resources to additional available resources of the sidelink feedback resources in the common feedback symbol.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may identify a first set of resources for an access link communication between the first UE and a base station. The UE may identify a second set of resources for a sidelink communication between the first UE and a second UE. The UE may identify a scheduling conflict between the first set of resources for the access link communication and the second set of resources for the sidelink communication. The UE may drop at least a portion of the first set of resources for the access link communication or the second set of resources for the sidelink communication based at least in part on the identification of the scheduling conflict and a prioritization rule. Numerous other aspects are provided.

Abstract: Aspects relate to location services in a wireless communication network. A first wireless communication device may send capability information to the network indicating that the first wireless communication device supports a location services protocol but does not support location services notifications. Upon receiving this capability information, the network may refrain from performing a privacy check procedure directed to the first wireless communication device. As another example, the network may refrain from performing a privacy check procedure directed to the first wireless communication device based on a determination that the first wireless communication device performs a relay function (or otherwise does not support location services notifications or user interaction). As yet another example, the network may determine, based on a privacy profile of the first wireless communication device, that the first wireless communication device is a type of device that is not associated with privacy checks.