Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a first decoding result for a plurality of downlink control channels of a diversity enhancement based non-coherent joint transmission communication and a second decoding result for a plurality of data channels corresponding to the plurality of downlink control channels; and selectively provide feedback regarding the first decoding result and feedback regarding the second decoding result, the feedback regarding the first decoding result indicating whether reception of one or more downlink control channels, of the plurality of downlink control channels, is successful, and the feedback regarding the second decoding result indicating whether decoding of a codeword of the plurality of data channels is successful. Numerous other aspects are provided.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may transmit, in a first part of two-part channel state information (CSI), a rank indication (RI) and an indication of one or more numbers of first transfer domain coefficients to be used to characterize compressed CSI for one or more layers; and transmit, in a second part of the two-part CSI, an indication of one or more numbers of second transfer domain coefficients to be used to characterize compressed CSI for one or more beams for the one or more layers. 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, from a base station (BS), a first signaling communication that configures a plurality of transmit precoder matrix indicator (TPMI) and sounding reference signal (SRS) resource indicator (SRI) pairs. The plurality of TPMI and SRI pairs may be for transmitting respective physical uplink shared channel (PUSCH) communications to the BS. The UE may receive, from the BS, a second signaling communication that indicates an update to a TPMI and SRI pair of the plurality of TPMI and SRI pairs. The UE may transmit, to the BS, a PUSCH communication, of the respective PUSCH communications, based at least in part on the update to the TPMI and SRI pair. 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, from a base station, an indication of an air-to-ground (ATG) dedicated random access channel (RACH) configuration. The UE may communicate with the base station based at least in part on the ATG dedicated RACH configuration. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communication are described. Neural networks may assist user equipments (UEs) and base stations in performing various operations related to wireless communications. For example, neural networks may be used to generate non-orthogonal cover codes for transmitting reference signals such as channel state information-reference signals (CSI-RSs). A base station may transmit, to a UE, a CSI-RS associated with a non-orthogonal cover code of a set of non-orthogonal cover codes. Using the CSI-RS, the UE may perform a channel estimation procedure that corresponds to the non-orthogonal cover code. Based on the channel estimation procedure, the UE may transmit a feedback message to the base station that indicates a channel quality parameter. Additionally, or alternatively, a UE may receive a CSI-RS, determine a precoding matrix using the CSI-RS and neural network, and transmit an indication of the pre-coding matrix to a base station.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, one or more communications associated with accessing a cell associated with the base station. The UE may selectively access the cell associated with the base station based at least in part on a determination of whether the one or more communications provide an indication that the cell is dedicated for air-to-ground communications. Numerous other aspects are described.

Abstract: Certain aspects of the present disclosure provide techniques for sounding and precoding uplink transmissions using one or more machine learning models. An example method generally includes generating a sounding reference signal (SRS) using an SRS deep neural network (DNN); transmitting, to a network entity, the generated SRS in one or more resource elements (REs); receiving, from the network entity, information identifying a precoding matrix to use for uplink transmissions on a shared channel; precoding uplink transmissions based on the identified precoding matrix; and transmitting, to the network entity, the precoded uplink transmissions on the shared channel.

Abstract: A method of wireless communication by a user equipment (UE) in a non-terrestrial network (NTN) includes transmitting a first small data transmission to a base station during a first transmission occasion associated with a first NTN beam, while the UE remains in an inactive mode or idle mode. The method further includes identifying a switch from the first NTN beam to a second NTN beam. The method still further includes transmitting a subsequent small data transmission to the base station during a second transmission occasion associated with the second NTN beam.

Abstract: Certain aspects of the present disclosure provide techniques for allocating channel state information (CSI) processing unit (CPU) for user equipment (UE) initiated CSI. For example, the UE may receive an indication from a network entity (e.g., a base station or gNB) configuring the UE with a number of one or more CPUs allowed to be occupied for UE-initiated CSI feedback. The UE uses the at least one of the CPUs to calculate UE-initiated CSI feedback. The UE transmits at least one report including the UE-initiated CSI feedback if one or more conditions are met, such as when a mismatch between a CSI metric for a scheduled physical downlink shared channel (PDSCH) and a CSI metric calculated as part of the UE-initiated CSI feedback is equal to or exceeding a threshold value.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, a configuration that defines a quantity of additional guard resource elements (REs) in a frequency domain between different frequency division multiplexed demodulation reference signal (DMRS) code division multiplexing (CDM) groups. The additional guard REs in the frequency domain may not be associated with signal transmissions. The UE may perform a channel estimation based at least in part on the quantity of additional guard REs in the frequency domain between the different frequency division multiplexed DMRS CDM groups. 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 a synchronization signal block (SSB) associated with a first numerology. The UE may receive, from a base station and based at least in part on the SSB associated with the first numerology, information identifying time domain and frequency domain locations of one or more SSBs associated with a second numerology. Numerous other aspects are described.

Abstract: A method performed by a user equipment (UE) includes: determining to operate using a numerology comprising at least one item from a list consisting of: a subcarrier spacing of 60 kHz or greater, a cyclic prefix greater than 8 ?s, and ten symbols per slot; and detecting and processing a first synchronization signal block (SSB), the first SSB associated with a burst set, wherein the burst set includes a plurality of SSBs having time domain (TD) locations fitting into 1 ms duration or 2 ms duration, the plurality of SSBs including 4, 5, 6, or 8 SSBs.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, a channel state information (CSI) report configuration including configuration information that identifies a channel measurement resource associated with a first numerology and configuration information that identifies an interference measurement resource associated with a second numerology that is different from the first numerology. The UE may perform a channel measurement on the channel measurement resource associated with the first numerology and an interference measurement on the interference measurement resource associated with the second numerology. The UE may transmit, to the base station, a CSI report based at least in part on the channel measurement and the interference measurement. Numerous other aspects are described.

Abstract: A method includes: receiving, by a first user equipment (UE) from a base station, an indication of interference associated with an uplink signal of a second UE wherein the interference comprises a first numerology different from a second numerology used by the first UE; receiving a downlink communication from the base station; cancelling the interference from the downlink communication according to the indication; and decoding the downlink communication.

Abstract: The first UE may transmit to the second UE, via an SCI-2 message in a PSSCH, an indication of at least one of a 3D zone ID associated with the first UE or a 3D communication range associated with the first UE. The second UE may determine whether the second UE is in a communication range based on the received indication of the at least one of the 3D zone ID associated with the at least one first UE or the 3D communication range associated with the at least one first UE. The second UE may determine whether to transmit an ACK or a NACK based on whether the second UE is in the communication range. The second UE may transmit to the first UE an ACK or a NACK based on whether the at least one second UE is in a communication range.

Abstract: A method includes: communicating with a base station using a first waveform; receiving configuration information specifying an interference measurement resource associated with a second waveform different from a channel measurement resource associated with the first waveform; performing channel measurement associated with the first waveform and interference measurement associated with the second waveform, according to the configuration information; and providing channel state information (CSI) feedback to the base station, the CSI feedback based at least in part on the channel measurement and the interference measurement.

Abstract: Aspects of the present disclosure include methods, apparatuses, and computer readable media for receiving at the aircraft UE in an airspace, at least one of global navigation satellite system (GNSS) information of the aircraft UE, flight level (FL) information of the aircraft UE, a projected trajectory of the aircraft UE, GNSS information of a plurality of base stations (BSs) in a heterogeneous network (HetNet), or coverage preferences of the plurality of BSs, selecting a first BS of the plurality of BSs or a second BS of the plurality of BSs based on the GNSS information of the aircraft UE, the FL information of the aircraft UE, the projected trajectory of the aircraft UE, respective GNSS information of the selected BS, or a respective coverage preference of the selected BS, and establishing a wireless connection with the selected BS.

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may receive a message indicating geographic location information related to beamforming an air-to-air sidelink message via a sidelink channel. In some examples, a second UE may transmit the message or different as a message scheduling the sidelink message. The geographic directions to avoid when beamforming the sidelink message, or a combination thereof. The first UE may identify one or more precoding parameters based on the geographic location information. The first UE may transmit the air-to-air sidelink message to the second UE. The sidelink message may be precoded for transmission via a transmission beam using the one or more precoding parameters.

Abstract: A configuration for reporting OOD samples for neural network optimization. The apparatus receives, from a base station, a configuration to report an OOD dataset for a machine learning model. The apparatus detects an occurrence of one or more OOD events. The apparatus reports the OOD dataset comprising the one or more OOD events based on the configuration to report OOD dataset. The apparatus receives, from the base station, an update to the machine learning model. The OOD dataset may comprise raw data related to the one or more OOD events, or may comprise extracted latent data corresponding to features of raw data related to the one or more OOD events.

Abstract: Aspects of the present disclosure include methods, apparatuses, and computer readable media for receiving a synchronization signal block (SSB) burst set having a plurality of SSBs that are time division multiplexed, wherein a first SSB of the plurality of SSBs and a second SSB of the plurality of SSBs have different numerologies or different waveforms, selecting a SSB of the plurality of SSBs, identifying cell information associated with a cell based on the SSB of the plurality of SSBs, and establishing a connection with the cell based on the cell information.