Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may provide an indication of the supported sounding reference signal (SRS) transmission capability of the UE to a network entity for early SRS transmission (e.g., SRS transmission after initiation of a random access channel (RACH) procedure with the network entity and prior to reception of the registration accept message from the network entity that corresponds to the RACH procedure). The UE may transmit early SRSs in accordance with an SRS configuration based on the indication of the SRS transmission capability. The network entity may use the SRSs to perform channel estimation and select parameters (such as precoders) for downlink and/or uplink communications with the UE. Indication of an SRS capability for early SRS transmission accordingly may reduce the time to establish data communication between a UE and a network entity.

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may monitor at least a first set of sidelink shared channel resources in a radio frequency spectrum band associated with aircraft communications. The wireless device may select, from the first set of sidelink shared channel resources, a second set of sidelink shared channel resources for sidelink communications by the wireless device. In some examples, selection of the second set of sidelink shared channel resources is based on whether measured signal powers for the first set of sidelink shared channel resources satisfy a threshold and based on whether one or more of the measured signal powers for the first set of sidelink shared channel resources are associated with additional maximum power reductions (AMPRs). The wireless device may perform the sidelink communications via at least a portion of the second set of sidelink shared channel resources.

Abstract: Methods, systems, and devices for wireless communications are described. For instance, a user equipment (UE) may receive, from a network entity, an indication of a set of time resource common to a set of UEs and available for communication of a multicast transmission from the network entity to two or more of the set of UEs, where the two or more of the set of UEs includes the UE, and where the set of time resources are a subset of a plurality of time resources of a carrier configured for the UE. The UE may receive, from the network entity, a grant for the multicast transmission and the multicast transmission over a subset of the set of resources, where the subset of the set of time resources is determined based on scheduling information associated with the grant and the indication of the set of time resources.

Abstract: Methods, systems, and devices for wireless communication are described. A device may receive control signaling indicating a cell configuration associated with a first cell of a set of cells. The cell configuration may indicate a scheduling configuration associated with the first cell and a second cell of the set of cells for multicast communication. The device may monitor for a downlink control channel associated with the multicast communication on one or both of the first cell or the second cell based on the control signaling. The device may monitor for a downlink data channel associated with the multicast communication on one or both of the first cell or the second cell based on the monitoring of the downlink control channel. The device may receive the multicast communication on one or both of the first cell or the second cell based on the monitoring of the downlink data channel.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network node, signaling indicating that the network node supports UE-specific repetitions for a random access channel (RACH) transmission from the network node during a RACH procedure. The UE may receive, from the network node, downlink control information (DCI) scheduling the RACH transmission from the network node, wherein the DCI comprises an indication of a quantity of repetitions for the RACH transmission that is specific to the UE. The UE may perform a decode operation for the RACH transmission based at least in part on monitoring for the quantity of repetitions of the RACH transmission. Numerous other aspects are described.

Abstract: Certain aspects of the present disclosure provide techniques for wireless communications at a network entity. The network entity is configured to transmit a legacy paging message to a user equipment via a first set of resources, and a pre-paging message to a user equipment via a second set of resources. The second set of resources is used if one or more conditions are met. The network entity can also perform one or more actions after transmitting the pre-paging message.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network entity, an uplink grant for a physical uplink shared channel (PUSCH) that is to overlap in time with a physical uplink control channel (PUCCH) used for hybrid automatic repeat request (HARQ) feedback for at least multicast, the uplink grant including a downlink assignment index (UL-DAI) indication that indicates at least one of: whether the HARQ feedback of the PUCCH is to be multiplexed on the PUSCH, or a size for the HARQ feedback. The apparatus may communicate, with the network entity, in accordance with the UL-DAI indication. 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 identify, from a plurality of resource block sets that span a control resource set (CORESET) and that are interleaved within the CORESET, one or more resource block sets that include one or more control channel candidates associated with the UE, wherein each resource block set of the plurality of resource block sets includes a plurality of resource element groups (REGs). The UE may identify a set of frequency resources associated with the one or more resource block sets. The UE may monitor the set of frequency resources for the one or more control channel candidates associated with the UE. Numerous other aspects are described.

Abstract: A user equipment (UE) may be configured for transmission of reference signals in association with cell discontinuous transmission (DTX) and/or discontinuous reception (DRX) (DTX/DRX) configurations. In some aspects, the UE may be configured for transmitting or receiving reference signals or dropping communications during a non-active time of a C-DTX/DRX cycle. In some aspects, a UE may transmit or receive reference signals during a non-active time of a C-DTX/DRX cycle in association with a configured use of the reference signals or a connectivity state of the UE.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive configuration information associated with downlink control channel repetition. The configuration information may include a repetition parameter and a monitoring window duration. The UE may receive first downlink control information in a first occasion of a monitoring window with the monitoring window duration based on the configuration information. The first occasion of the monitoring window may be associated with a first synchronization signal block (SSB). The UE may receive second downlink control information that is a repetition of the first downlink control information in a second occasion of the monitoring window based on the configuration information and in accordance with the repetition parameter, where the second occasion of the monitoring window is associated with the first SSB.

Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a user equipment (UE) may receive configuration information that indicates one or more first paging bandwidth parts (BWPs) associated with a first device type and one or more second paging BWPs associated with a second device type. The UE may monitor for a paging message associated with the one or more first paging BWPs or the one or more second BWPs based on a device type of the UE, wherein the device type is the based on device capabilities. In some cases, the UE may receive a first physical downlink control channel (PDCCH) monitoring configuration associated with the first device type, a second PDCCH monitoring configuration associated with the second device type, or a combination thereof.

Abstract: A method and apparatus for selecting a network function, a communication device and a readable storage medium are provided, which belong to the technical field of communications. The method for selecting the network function according to an embodiment of the present disclosure includes: sending, by a first network function, a registration request to a second network function; wherein the registration request includes first information, and the first information is used to indicate that the first network function supports or does not support initiating reselection of a target first network function, and/or the first information is used by a service consumer to determine whether the reselection of the target first network function is initiated by the first network function.

Abstract: Wireless communications systems and methods related to acknowledgement/negative-acknowledgement (ACK/NACK) feedback operations for multicast communications are provided. A first user equipment (UE) receives, from a base station (BS), a multicast feedback configuration indicating a first resource configuration for a negative-acknowledgement (NACK) feedback mode; and a second resource configuration for an acknowledgement/negative-acknowledgement (ACK/NACK) feedback mode. The first UE receives, from the BS, a first multicast communication. The first UE transmits, to the BS, a NACK feedback for the first multicast communication based on the first resource configuration. The first UE receives, from the BS, a second multicast communication. The first UE transmits, to the BS, an ACK feedback or a NACK feedback for the second multicast communication based on the second resource configuration.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a control configuration that indicates one or more control regions associated with an aggregate control region and that indicates a quantity of the one or more control regions associated with the aggregate control region. The UE may monitor, via the aggregate control region, for a downlink control transmission that is rate-matched over the one or more control regions. Numerous other aspects are described.

Abstract: A user equipment (UE) (e.g., an enhanced machine type communication (EMTC) UE) may identify several narrowbands associated with eMTC protocol based on a system bandwidth of a New Radio (NR) carrier. A base station may transmit an indication of a set of valid narrowbands for eMTC (e.g., based on coexistence considerations between eMTC and NR) to the UE. The base station may further transmit a frequency hopping pattern to the UE (e.g., associated with narrowbands within the set of valid narrowbands), and transmit one or more downlink transmissions according to the frequency hopping pattern. Additionally or alternatively, a base station may identify a subcarrier offset and/or resource block offset between resources (e.g., a resource grid) used for eMTC protocol and resources used for NR. The base station may transmit a frequency alignment parameter to the UE, and the UE may align narrowbands for eMTC accordingly.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a control signal that indicates a subset of sounding reference signals (SRS) of a set of SRS. The UE may transmitting the set of SRS using a set of antenna ports of the UE. The subset of SRS may be transmitted using a subset of antenna ports of the set of antenna ports. The UE may receive, using the subset of antenna ports used to transmit the subset of SRS, a downlink control channel signal that is precoded according to the subset of SRS based on transmitting the set of SRS and the control signal that indicates the subset of SRS.

Abstract: Positioning assistance data is broadcast by Transmission Reception Points (TRPs) that includes information that is specific for aerial user equipment (UEs) and information that is for terrestrial UEs. The positioning assistance data may be included in positioning System Information Blocks (posSIBs), and the information for the aerial UEs and information for the terrestrial UEs may be provided together in the posSIB or may be provided in separate posSIBs. The positioning assistance data, for example, may separately list, e.g., the TRPs, resource sets, or resources to be used for positioning aerial UEs.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network entity may cause a first transmission reception point (TRP) to transmit a first communication using a first time value derived from a first transmission configuration indicator (TCI) state including a set of first quasi co-location (QCL) parameters of the first TRP. The network entity may cause a second TRP to transmit a second communication using a timing pre-compensation value relative to the first time value. Numerous other aspects are described.

Abstract: Embodiments include systems and methods for supporting for supporting retransmission in a multicast session in a Fifth Generation (5G) New Radio (NR) (5G NR) radio access network (RAN). Various embodiments may provide an enhanced multicast radio bearer (MRB) architecture leveraging Packet Data Convergence Protocol (PDCP) status reporting by wireless devices to a base station of a 5G NR RAN. Various embodiments may support multiple Radio Link Control (RLC) entities, also referred to as RLC legs, in a multicast session. One or more multicast RLC legs may be used for multicast and/or unicast transmission to wireless devices and a unicast RLC leg may be used for unicast transmission to a specific wireless device. Various embodiments may enable PDCP level retransmission of PDCP protocol data units (PDUs).

Abstract: A method of wireless communication at a UE is disclosed herein. The method includes receiving, via a satellite and over a first bandwidth and a first beam, at least one of an SSB or a SIB for a cell. The method includes receiving, via the satellite and over a second bandwidth and a second beam, at least one of a CSI-RS or DM-RS for data transmission for a zone within the cell, where the first bandwidth is less than the second bandwidth, and where a first width of the first beam is greater than a second width of the second beam. The method includes communicating via the satellite based on at least one of the SSB, the SIB, the CSI-RS, or the DM-RS.