Abstract: Methods, systems, and devices for wireless communications are described. A network entity may transmit one or more reference signals to a user equipment (UE). The network entity may receive, from the UE, channel estimation information based on the reference signals and observed channel conditions for the UE during a first time slot. The network entity may determine, based on the received channel estimation information, a first channel condition prediction associated with a first sub-slot of a second time slot and a second channel condition prediction associated with a second sub-slot of the second time slot. The network entity may determine multiple precoders based on the channel condition predictions. The network entity may communicate with the UE using a first precoder during the first sub-slot of the second time slot and a second precoder during the second sub-slot of the second time slot.

Abstract: Methods, systems, and devices for wireless communications are described. Techniques described herein provide for a user equipment (UE) to determine a channel estimation associated with a downlink channel. In some examples, a network entity may determine a projection matrix and may transmit, to the UE, control signaling indicating the projection matrix. The UE may determine the channel estimation associated with the downlink channel based on the projection matrix. The UE may receive data signaling from the network entity, and the UE may demodulate the data signaling according to the channel estimation that is based at least in part on the projection matrix.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless node may receive a code block. The wireless node may predict a low density parity check (LDPC) decoding result for the code block in accordance with received log likelihood ratio (LLR) histogram information associated with the code block. The wireless node may configure an LDPC decoder in accordance with the predicted LDPC decoding result for the code block. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A first network entity may receive control signaling from a second network entity, the control signaling indicating an image mask representing a color filter array that is used to generate mosaic images at the second network entity. The first network entity may receive a first image from the second network entity over a wireless communications channel and the first image may be a single layer image including a mosaic pattern according to the color filter array. The first network entity may generate a second image based on the first image and the image mask and the second image may include multiple layers associated with colors of the second image.

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a configuration signal indicating that tone reservation is activated on a first set of resource elements of a downlink transmission for out of band transmission reduction, where a second set of resource elements of the downlink transmission is reserved for data transmission. The UE may then receive, from a network entity, the downlink transmission including the first set of resource elements and the second set of resource elements. After receiving the downlink transmission, the UE may decode the downlink transmission in accordance with the configuration signal.

Abstract: Methods, systems, and devices for wireless communications using a singular value decomposition (SVD) combiner precoder are described. The described techniques may enable a network entity to determine which streams of a set of multiple data streams to combine in the SVD combiner precoder to increase a lowest signal-to-noise ratio of the set of multiple data streams, and which streams of the multiple streams to leave separate. The network entity may determine a precoding matrix using a square matrix ?, which may allow the network entity to dynamically combine (e.g., or not combine) data streams. The network entity may transmit an indication to a UE indicating which streams the network entity will combine and which streams the network entity will not combine. The UE may accordingly demodulate the non-combined streams with a relatively less complex demodulator and may demodulate the combined streams with a relatively more complex demodulator.

Abstract: Method and apparatus for reduced signaling overhead in PAPR reduction techniques. The apparatus receives, from a transmitter, a signal comprising a set of overhead bits associated with a PAPR reduction sequence applied to a data signal from the signal, wherein the set of overhead bits are distinct from data symbols corresponding to the data signal. The apparatus decodes the set of overhead bits to identify the PAPR reduction sequence applied to the data signal from the signal. The apparatus removes the PAPR reduction sequence applied to the data signal. The apparatus decodes a remaining set of symbols of the data symbols from the signal, wherein the remaining set of symbols are free of the PAPR reduction sequence.

Abstract: Method and apparatus for HARQ procedures for DVC. The apparatus sorts one or more bits of a payload based on a corresponding priority. The apparatus divides the payload into one or more groups based on the corresponding priority, where each of the one or more groups is encoded separately. The apparatus transmits, to a second wireless device, a video frame over a span of one or more slots based at least on a prioritized transmission of the one or more groups.

Abstract: Methods, systems, and devices for wireless communication are described. A request associated with probabilities of respective points of a constellation for communication of a set of data symbols using a channel may be received. The channel may be between a wireless device and a network entity. The probabilities may indicate respective likelihoods of the respective points being used in the communication of the set of data symbols. Signaling may be communicated in accordance with the set of probabilities of the respective points, where the set of probabilities may be adapted to characteristics of radio frequency impairments associated with the channel. The characteristics of the radio frequency impairments may be measured by a wireless device.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit neural network (NN) capability information to a network entity. The network entity may train the NN model by selecting a NN-based precoder and generating associated coefficients. The network entity may transmit an indication of the precoder coefficients to the UE. The network entity may transmit demodulation reference signals (DMRSs) that have not been precoded and a physical downlink shared channel (PDSCH) signal that has been narrowband-precoded according to the indicated precoder. The UE may then perform and input a channel estimation to the NN model. The NN model may output the narrowband precoder, which the UE may use to generate a narrowband channel estimate and demodulate the narrowband precoded PDSCH signal. In some examples, the network entity may update NN coefficients and may indicate the updated NN coefficients to the UE.

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for a transmitting device and a receiving device to coordinate channel aware tone reservation (CATR) control information using distributed coding. The transmitting device and receiving device may estimate a similar wireless channel and select a set of reserved tone locations and may each independently encode the set of reserved tone locations. In some cases, the receiving device may receive parity information associated with the set of reserved tone locations selected by the transmitting device and may jointly decode the parity information with the set of reserved tone locations predicted by the receiving device to detect and correct one or more errors in the predicted set of reserved tone locations.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration for receiving or calculating an interference parameter based, at least in part, on one or more estimated power delay profiles (PDPs), one or more precoding rules, and one or more kernels, the one or more estimated PDPs being associated with one or more communication channels. The UE may receive a configuration for applying the interference parameter to a transmission having a power near a compression point of a power amplifier to reduce transmission non-linearities. Numerous other aspects are described.

Abstract: Apparatuses and methods for ML based dynamic bit loading and rate control are described. An apparatus obtains NN model coefficient information associated with communication channel information, between a UE and network, and the UE capabilities. The apparatus generates, using the NN model and based on the coefficient information, a communication configuration including a constellation or a CB channel coding rate. The apparatus communicates, with the network and based on the CB of a TB, using the NN-generated channel coding rate or constellation. Another apparatus obtains NN model coefficient information, associated with communication channel information, between a UE and network, and the UE capabilities. The apparatus generates, using the NN model and based on the coefficient information, a communication configuration including a constellation or a CB channel coding rate. The apparatus communicates, with the UE and based on the CB of a TB, using the NN-generated channel coding rate or constellation.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit multiple data segments of a video frame, where each data segment is mapped to respective physical resources. In some examples, the UE may receive a combined channel state feedback (CCSF) message indicating a predicted quantity of physical resources to successfully decode data segments of one or more video frames subsequent to the video frame. The UE may transmit data segments of the subsequent video frames according to the predicted quantity of physical resources. In some other examples, the UE may receive a segment feedback message associated with data segments that were unsuccessfully decoded by a network entity, where the segment feedback message may indicate a predicted quantity of physical resources to successfully decode the data segments. As such, the UE may retransmit the unsuccessfully decoded data segments according to the predicted quantity of physical resources.

Abstract: The apparatus may be a UE configured to identify at least one performance metric associated with a channel estimation operation at the UE. The apparatus may further be configured to calculate at least one uncertainty value associated with the at least one performance metric. The apparatus may also be configured to transmit, to a network node, a first indication of the at least one uncertainty value associated with the at least one performance metric. The apparatus may be a network node, configured to receive, from a UE, the first indication and a second indication of at least one value for the at least one performance metric associated with the at least one uncertainty value and to select a set of parameters for a subsequent communication based on the at least one value for the at least one performance metric and the at least one uncertainty value.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive one or more precoding resource block group (PRG) parameters. The UE may assign one or more PRG partitions to a channel based, at least in part, on the PRG parameters. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a repeater device may transmit a repeater leakage report that indicates one or more signal leakage metrics associated with the repeater device. The repeater device may receive an indication of gain configuration information that is associated with a respective gain configuration for each respective pass-through signal of one or more pass-through signals associated with the repeater device. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. The method may include a user equipment (UE) transmitting a capability message indicating a capability of the UE to support a positioning scheme for one or more reference signals within a precoding resource block group for a channel estimation procedure, receiving, based on the capability message, a control signal indicating a frequency allocation for the one or more reference signals for the channel estimation procedure, the frequency allocation for the one or more reference signals being based on the positioning scheme supported by the UE, receiving the one or more reference signals for the channel estimation procedure in accordance with the frequency allocation, and performing the channel estimation procedure using the one or more reference signals based on the precoding resource block group associated with the channel estimation procedure.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit first control information that is indicative of noise (e.g., phase noise, additive white gaussian noise (AWGN), or both) that impacts a spectral efficiency of a modulation and coding scheme (MCS). The MCS may be associated with a constellation of points that may be each representative of a respective candidate sequence of bit values encoded with a corresponding combination of signal amplitude and carrier phase. The UE may receive, based on transmitting the first control information, second control information that indicates a set of partitioning parameters indicative of a hierarchical partitioning of the constellation into a multiple subsets of points. As such, the UE may decode a message, modulated via the MCS, using the hierarchical partitioning indicated by the set of partitioning parameters.

Abstract: Methods, systems, and devices for wireless communications are described that provide machine-learning models, such as neural network (NN) based precoding functions, that may be used at a user equipment (UE) to determine precoding parameters directly based on channel estimations performed at the UE. A network entity may measure a channel used for communications with the UE and determine coefficients that are to be applied to a machine learning precoding function (e.g., a NN precoding function) at the UE. The network entity may provide the determined coefficients to the UE. The UE may use the indicated coefficients in the NN based precoding function, along with a channel estimation of a channel associated with an uplink transmission, to determine a precoding matrix that is to be applied for the uplink transmission.