Abstract: Aspects relate to communication via multiple network slice services. A user equipment may support multiple network slice services (e.g., defined sets of network services and/or resources). At some point in time, the user equipment may communicate using a first network slice service provided by a first radio network entity (e.g., a first distributed unit, a first cell, a first base station, etc.). In addition, at some point in time, the user equipment may elect to use a second network slice service. In the event the first radio network entity is not available for the second network slice service, the user equipment may switch to a second radio network entity (e.g., a second distributed unit, a second cell, a second base station, etc.) to communicate using the second network slice service.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network, a procedure rejection message for non-cellular access at a non-access stratum (NAS) layer, and provide a first congestion indication from the NAS layer to lower layers for non-cellular access based at least in part on the receiving the procedure rejection message. The UE may refrain, at the lower layers, from initiating establishment of a signaling connection based at least in part on the first congestion indication. Numerous other aspects are provided.

Abstract: Wireless communications systems and methods related to on-demand ultra-reliable, low-latency communication (URLLC) are provided. In one embodiment, a base station (BS) receives, from a user equipment (UE) in a first cell frequency, a request for a protocol data unit (PDU) session over a network slice. The BS receives, from a core network entity, a resource configuration request for the PDU session over the network slice. The BS transmits, to the core network entity, a resource configuration response indicating a cause for rejecting the resource configuration request. In one embodiment, a UE transmits, in a first cell frequency of a network, a network registration request message requesting a network slice of the network that is not provided by the first cell frequency. The UE receives a network registration response message indicating the network slice is allowed based on a second cell frequency of the network providing the network slice requested.

Abstract: Methods, systems, and devices for wireless communications are described. Generally, a network may establish a multiple access (MA) packet data unit (PDU) session for a local area data network (LADN) and may reconfigure a registration area to map to a LADN service area. A network may establish an MA PDU session for an LADN, but may steer traffic to only one of two access links. A network may reject a request for an MA PDU if it is for an LADN. A user equipment (UE) may be configured to trigger a UE registration update or other location information if it leaves an LADN service area while in an idle mode with one access network and a connected mode with the other access network. A UE may request LADN registration, and the network may provide the UE with an indication that MA PDU sessions for the LADN are not supported.

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE), such as an unmanned aerial vehicle (UAV) (e.g., a source UAV), may initiate a unicast link establishment procedure with another UAV (e.g., a target UAV), which may enable the UAVs to communicate according to an air-to-everything (A2X) service type. The source UAV may transmit a direct communication request (DCR) message to the target UAV that includes an application-layer identifier (ID) that is unique to the target UAV. The source UAV may derive the application-layer ID for the target UAV from a UE-specific ID that is unique to the target UAV. Alternatively, the source UAV may transmit a DCR message that excludes target UAV information. Instead, the DCR message may indicate one or more proximity parameters associated with the source UAV. The UAVs may communicate unicast messages via the unicast link according to A2X configurations and communication parameters.

Abstract: Some aspects described herein relate to provisioning aerial vehicles with identifiers, certificates, or other credentials for communicating based on a mobile network. The UAV can transmit a request to register with the mobile network, where the request includes at least a hardware identifier of the UAV. The UAV may receive, from a component of the mobile network, a response to the request, where the response includes a unique UAV identifier, a UAV certificate, and a network certificate generated by at least one of the component of the mobile network or a unmanned aircraft system service supplier (USS).

Abstract: Methods, systems, and devices for wireless communications are described. Specifically, techniques and signaling for configuring and utilizing parameters for unmanned aerial vehicle (UAV)-to-everything (U2X) communications are described, including registration procedures for U2X communications. A user equipment (UE), such as a UAV, may receive control signaling indicating a UE policy configuration including a set of radio parameters usable by the UE to perform sidelink communications to support one or more UAV services. The UE may receive an altitude limitation parameter associated with the one or more UAV services via the control signaling, additional control signaling, or both. The UE may then perform a sidelink message associated with the one or more UAV services in accordance with the UE policy configuration and altitude limitation parameter.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may monitor one or more first conditions pertaining to non-cellular communications between the UE and a non-cellular network while the UE is operating in a dual networking mode for steering, switching, or splitting traffic (e.g., an access traffic steering, switching, and splitting (ATSSS) mode) between the non-cellular network and a cellular network. The UE may predict an availability status of at least the non-cellular network based on at least one of the one or more first conditions. In some cases, the UE may determine whether to change dual networking modes based on the availability status and may communicate in accordance with the same or a different dual networking mode using at least one of the cellular network, the non-cellular network, or a combination thereof based on the prediction.

Abstract: Various aspects of the present disclosure include methods, network servers or components and user equipment devices configured to authorize network slices that are associated with services provided by external providers. Various aspects enable access and use of network slices by user equipment devices connected to a network (e.g., 5G or New Radio network) via network components associated with a service provider by generating an allowed network slice selection assistance information (Allowed NSSAI) and an Unauthorized NSSAI, and sending the Allowed NSSAI and Unauthorized NSSAI to a user equipment device.

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for maximizing the potential of resources dedicated to aerial user equipment (UEs). In one example, a UE may receive signaling indicating that a cell supports communications exclusively with aerial UEs. The signaling may be used to bar non-aerial UEs from accessing the cell and reserve resources for communications with aerial UEs. In another example, a UE may receive signaling identifying one or more frequency bands dedicated to aerial UEs. The UE may then communicate on the one or more frequency bands. In yet another example, a UE may receive signaling indicating a set of aerial access categories supported by a cell. The signaling may be used to reserve resources for high-priority aerial UEs (e.g., aerial UEs used for law enforcement purposes).

Abstract: Methods, systems, and devices for wireless communications are described. Specifically, techniques for performing unmanned aerial vehicle (UAV)-to-everything (U2X) registration procedures and well as techniques for updating U2X subscription data within the network are described. A user equipment (UE) may transmit, as part of a registration procedure between the UE and a network, capability signaling indicating a UAV-related category associated with the UE and a capability for the UE to perform sidelink communications to support UAV services. The UE may receive, as part of the registration procedure and based on the capability signaling, a registration acceptance message in accordance with a subscription associated with the UE. The UE may then communicate a sidelink message associated with the UAV services in accordance with the capability to support the UAV services and the subscription associated with the UE.

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for enhancing location reporting procedures to include height information of a user equipment (UE), such as an aerial UE. The location reporting procedures may be between a core network entity and an access network entity. Due to the differences in coverage regions between areal cells and terrestrial cells, aerial UEs may not fully rely on cell identifiers (IDs) as a primary location indicator due to its ambiguity (e.g., as the aerial UEs may use a side-lobe or up-tilted beam of a far-away cell that provides a cell ID while its conventional geographical location belongs to another, closer cell). Aspects of the present disclosure provides techniques for enhancing the location reporting procedures for the aerial UEs to prevent such potential errors in location reporting.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be aboard an aerial vehicle such that the UE is above ground, and in some cases, moving above ground (e.g., flying). The UE may determine to perform an emergency communication procedure (e.g., an emergency call) while the UE meets one or more flying state conditions, where the one or more flying state conditions may be indicative that the UE is in a flying state. The UE may transmit a message to a base station as part of the emergency communication procedure, where the message may be indicative that the UE meets the one or more flying state conditions. The UE may participate in the emergency communication procedure while the UE is in the flying state.

Abstract: Disclosed are techniques for wireless communication using satellite access to a wireless network, where a wireless cell supported by a satellite is moving or temporarily fixed. In an aspect, a radio access network (RAN) entity or a user equipment (UE) provides, to a core network entity, an enhanced cell global identifier (CGI), where the enhanced CGI includes at least one field representing a location of the UE. Based on the enhanced CGI, the core network entity determines a location of the UE, and may provide a service to the UE based on the location. A core network may also provide an enhanced CGI to a RAN, e.g., to support wireless emergency alerting to UEs.

Abstract: Techniques for managing access combinations for multiple access protocol data unit (PDU) sessions are described. A communication device may receive control signaling indicating a configuration for a multiple access PDU session associated with a plurality of access links. The plurality of access links may be associated with a first type of access, a second type of access, or a combination thereof. The communication device may select a mode for allocation of a data flow associated with the multiple access PDU session to the plurality of access links based at least in part on the received control signaling. The communication device may allocate the data flow associated with the multiple access PDU session to the plurality of access links based at least in part on the selected mode, and transmit the allocated data flow over the plurality of access links associated with the two types of access.

Abstract: A radio access network (RAN) node may transmit, to an access and mobility function (AMF) of a core network, a request associated with a location-based state of a user equipment (UE) served by the RAN node. The location-based state of the UE may be associated with whether the UE is flying or whether the UE is driving, or other location information of the UE. Accordingly, the RAN node may receive a message in response to the request. The RAN node may receive the message in response to the request from the AMF. Alternatively, the AMF may establish a connection between the RAN node and a location management function (LMF) of the core network such that the RAN node receives the message in response to the request from the LMF.

Abstract: Certain aspects of the present disclosure provide techniques for establishing a dual third generation partnership project (3 GPP) access protocol data unit (PDU) session. An example method performed by a user equipment includes selecting a first access link for a protocol data unit (PDU) session, selecting a second access link based on the first access link, and establishing the PDU session based on the selected first access link and the second access link.

Abstract: Exchange of flight path information between a mobile network and an unmanned aerial vehicle (UAV) assumes a particular format for the flight path information, usually a waypoint format. However, there are many circumstances in which the mobile network may prefer flight path information in other formats, such as polygon formats (also referred to as “flight volume formats”). Techniques and apparatuses described herein provide greater flexibility with respect to formatting requests for flight path information and encoding responses to such requests. For example, a base station may transmit a request for flight path information with a format indicator that informs a UAV of a desired format for the requested flight path information. The UAV may then provide the flight path information according to the format indicator.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network device, a UE route selection policy (URSP) rule that indicates a preference for a multi-access protocol data unit (PDU) session and a preferred quantity and preferred types of access links for the multi-access PDU session. The UE may establish the multi-access PDU session using the preferred quantity and the preferred types of access links indicated by the URSP rule. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) at an uncrewed aerial vehicle (UAV) or an aerial UE (AUE) may transmit a request message associated with a mobility management procedure, the request message including a command and control (C2) authorization payload associated with authorizing a direct C2 connection between the UAV and a controller. The UE at the UAV or the AUE may receive a response message, as part of the mobility management procedure, that indicates whether the direct C2 connection between the UAV and the controller is authorized. Numerous other aspects are described.