Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device may encode a set of bits to transmit to a receiving device based on a repetition factor. The transmitting device may map, based on the repetition factor, the set of encoded bits to a subset of subcarriers such as adjacent subcarriers of a set of subcarriers. The transmitting device may generate a signal including the set of encoded bits based on the mapping, and transmit the generated signal to the receiving device. The receiving device may receive a modulated signal from the transmitting device, and identify, based on a repetition factor, a subset of subcarriers including adjacent subcarriers of a set of subcarriers associated with the modulated signal. The receiving device may average the subset of subcarriers including the adjacent subcarriers, and demodulate the modulated signal in accordance with the averaged subset of subcarriers including the adjacent subcarriers.

Abstract: Certain aspects of the present disclosure provide techniques for digital pre-distortion (DPD). An apparatus for wireless communication generally includes a power amplifier (PA); a first DPD circuit, a second DPD circuit, and a transmitter. The first DPD circuit is generally configured to: obtain an input signal; apply a first DPD to the input signal to generate a first resulting signal; and output the first resulting signal to the second DPD circuit. The second DPD circuit is generally configured to: obtain the first resulting signal from the first DPD circuit; apply a second DPD to the first resulting signal to generate a second resulting signal; and output the second resulting signal to the PA. The PA is generally configured to amplify the second resulting signal to generate an amplified second resulting signal. The transmitter is generally configured to transmit the amplified second resulting signal to a second apparatus.

Abstract: Methods, systems, and devices for wireless communications are described. A network entity may transmit via a first time slot, a first set of demodulation reference signals (DMRSs) and a second set of DMRSs that may be associated with a set of user equipments (UEs). The network entity may receive from the set of UEs, respective feedback messages indicating respective channel estimation information based on the first set of DMRSs and the second set of DMRSs. The network entity may generate a multi-user multi-input and multi-output (MU-MIMO) channel prediction for a second slot subsequent the first slot, based on the respective feedback messages and generate a MU-MIMO channel precoder associated with the set of UEs based on the MU-MIMO channel prediction. The network entity may transmit, during the second slot, one or more messages to the UEs based on the MU-MIMO channel prediction and the MU-MIMO channel precoder.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a transmitter, a reference signal block provided based at least in part on an orthogonal frequency division multiplexing (OFDM) waveform. The UE may perform an estimation operation based at least in part on the reference signal block. The UE may receive a data transmission via a single carrier waveform based at least in part on the estimation operation. 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 a communication with a received power that satisfies a threshold. The UE may transmit an indication indication to reduce a transmission power based at least in part on the received power satisfying the threshold. Numerous other aspects are described.

Abstract: Ultra-wide band frequencies used for extended reality (XR) services operate as unlicensed spectrum, which can result in unexpected interference. Although some link adaptation procedures can be used, uncertain link quality can result in sub-optimal utilization of spectrum resources, which may result in poor performance of an XR service. Some aspects described herein enable use of a fixed quantity of re-transmissions of data for an XR frame, with each of the re-transmissions having different XR frame qualities or different quantities of parity bits. The XR device may transmit a feedback message indicating whether the first transmission was successful and may receive a second transmission with additional data for the XR frame. In this way, the XR device can ensure a more efficient use of network resources.

Abstract: Methods, systems, and devices for wireless communications are described. Techniques described herein provide for a user equipment (UE) with a Modulated Retro Reflector (MRR) to support full duplex Optical Wireless Communications. To achieve full duplex communication, the UE and a network entity may use compatible modulation schemes for downlink communications and uplink communications. The UE and network entity may negotiate and agree upon compatible the uplink and downlink modulation schemes. The UE may receive a downlink OWC transmission using the downlink modulation scheme and transmit an uplink OWC transmission via modulating the downlink transmission in accordance with the uplink modulation scheme.

Abstract: Aspects presented herein may enable a UE to be configured with various types of physical layer TCI configurations based on beam(s), carrier-frequencies, cells, and/or channels used by the UE for communication. In one aspect, a UE receives, from a network entity, an indication of a set of physical layer configurations that is capable of being signaled by a TCI, where the set of physical layer configurations is associated with a set of TCI configurations. The UE receives, from the network entity, the set of TCI configurations associated with the set of physical layer configurations based on the indication, where the set of TCI configurations is associated with a set of beams, a set of carrier frequencies, a set of cells, a set of channels, or a combination thereof.

Abstract: Methods, systems, and devices for wireless communication are described for one or more aspects of dynamically configuring an analog-to-digital converter (ADC). A user equipment (UE) may determine a set of supported ADC resolution sizes including one or more dynamically configurable bit quantities. The UE may transmit a capability message including an indication of the set of ADC resolution sizes to a base station. The UE may indicate, to the base station, a power consumption factor or a table of signal-to-quantization noise ratios (SQNR) per bit quantity supported by the UE's ADC. In some cases, the base station may enable, based on the set of ADC resolution sizes, clipping of a power amplifier and one or more associated precoding parameters, and may indicate the precoding parameters to the UE. The UE may select an ADC resolution size for processing received messages.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a reference signal for estimation of at least one parameter associated with generation of an adapted low density parity check (LDPC) graph. The UE may transmit an indication of an adapted LDPC graph that is based on at least one adaptation metric associated with the at least one parameter. The UE may receive, based on the adapted LDPC graph, a downlink shared channel communication. 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 signal from a network node. The UE may reflect, toward the network node, the signal with a modulation that indicates an identification of the UE. Numerous other aspects are described.

Abstract: A user equipment (UE) may transmit, to a network entity, a capability message that indicates a set of one or more wake-up signal parameters associated with one or more wake-up signal waveform types supported by the UE. The network entity may transmit an indication of a set of wake-up signals to be monitored by the UE based on the capability message. The UE may monitor for the wake-up signals accordingly. In some examples, the network entity may determine a group of UEs based on wake-up signal parameters being common to the UEs in the group. Each of the UEs may monitor, using a first transceiver associated with a first mode of operation, for a group wake-up signal including a request for each UE of the group of UEs to activate a second transceiver associated with a second mode of operation and higher power consumption than the first transceiver.

Abstract: The described techniques may support multi-rank sidelink communications that may be reduced to single rank communications if failure to decode the multi-rank sidelink communications occurs. A user equipment (UE) may transmit a first message including first data using a first precoding vector applied for a first layer and a second precoding vector applied for a second layer. If the first message is not decoded successfully, the UE may transmit a second message including second data using a third precoding vector applied for the first layer and a fourth precoding vector applied for the second layer, where the second data is derived from the first data, the third precoding vector is derived from the second precoding vector, and the fourth precoding vector is derived from the first precoding vector. The second message may effectively reduce a rank of the first message when the channel is rank deficient.

Abstract: Certain aspects of the present disclosure provide techniques for digital pre-distortion (DPD). An apparatus for wireless communication generally includes a power amplifier (PA); a first DPD circuit, a second DPD circuit, and a transmitter. The first DPD circuit is generally configured to: obtain an input signal; apply a first DPD to the input signal to generate a first resulting signal; and output the first resulting signal to the second DPD circuit. The second DPD circuit is generally configured to: obtain the first resulting signal from the first DPD circuit; apply a second DPD to the first resulting signal to generate a second resulting signal; and output the second resulting signal to the PA. The PA is generally configured to amplify the second resulting signal to generate an amplified second resulting signal. The transmitter is generally configured to transmit the amplified second resulting signal to a second apparatus.

Abstract: A user equipment (UE) may transmit, to a network node, an indication of support for a decoder success prediction capability. The network node may obtain the indication of support by the UE for the decoder success prediction probability. The network node may output a transmission for the UE including one or more parameters based on the indication of support by the UE for the decoder success prediction capability. The UE may receive the transmission including one or more code blocks based on the indication of support for the decoder success prediction capability. The network node may optimize a multiple incremental redundancy scheme (MIRS) schedule for at least one of transmitting the transmission or retransmitting the transmission based on the indication of support by the UE for the decoder success prediction capability. The transmission may include the MIRS schedule.

Abstract: A base station may identify one or more signaling messages or pilots usable for identifying a combined PA and ET non-linearity model associated with the base station. The combined PA and ET non-linearity model may be associated with a PA circuitry and an ET circuitry. The PA circuitry and the ET circuitry may be associated with the base station. The base station may transmit, to the UE, and the UE may receive, from the base station, the one or more signaling messages or pilots. The UE may identify a combined PA and ET non-linearity model associated with the base station based on the one or more signaling messages or pilots. The UE may compensate for a distortion in one or more subsequent signals from the base station based on the identified combined PA and ET non-linearity model.

Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device may select a scrambling sequence to use per symbol to reduce variance in a non-linearity parameter for a power amplifier (PA) output between a data symbol and a pilot symbol based on a PA model for at least one pilot symbol or one or more parameters of the model. The receiving device may indicate a capability to blindly estimate the scrambling sequence the transmitting device selected to the transmitting device. If the transmitting device does not receive the capability message from the receiving device or if the capability message indicates the receiving device is not capable of blind estimation, the transmitting device may indicate the selected scrambling sequence to the receiving device. Otherwise, the transmitting device may not indicate the selected scrambling sequence to the receiving device, and the receiving device may blindly estimate the scrambling sequence.

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for mapping coding indices associated with a rateless coding scheme to respective sets of communication resources over which a transmitting device may perform transmissions of portions of a message corresponding to each of the coding indices. In some aspects, for example, different coding indices may correspond to different cumulative portions of the message and the transmitting device may transmit a first cumulative portion of the message corresponding to a first coding index over a first set of communication resources to which the first coding index is mapped. The transmitting device may signal an indication of such a resource mapping scheme to a receiving device and the receiving device may attempt to decode transmissions of one or more cumulative portions of the message using the indicated resource mapping scheme.

Abstract: Wireless communications systems and methods related to beam management configurations for relay devices or repeaters are provided. A network node receives, from a relay node, a first communication indicating one or more beam management parameters associated with a plurality of beam directions. The network node receives, via the relay node, one or more second communications associated with one or more user equipments (UEs) and at least one of the plurality of beam directions. The network node transmits, to the relay node based on the one or more beam management parameters and the one or more second communications, a third communication indicating a beam management configuration associated with the plurality of beam directions.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a mobile station may transmit an indication of supported types of signaling hardware of the mobile station. The mobile station may receive an indication of a selection of a type of signaling hardware, of the supported types of signaling hardware, to use in communication with a network node. Numerous other aspects are described.