Abstract: Certain aspects of the present disclosure provide techniques for wireless communications. An example method includes receiving a first transmission comprising a first reference signal and a second transmission comprising a second reference signal, wherein at least one of: the first transmission comprises a first physical resource block group (PRG) and the second transmission comprises a second PRG, or the first transmission is in a first time resource and the second transmission is in a second time resource; estimating, using the first reference signal and the second reference signal, a precoding misalignment between the first transmission and the second transmission; and estimating, based on the precoding misalignment, a first channel for the first transmission and a second channel for the second transmission.

Abstract: Certain aspects of the present disclosure provide a method for wireless communication, including: receiving a capability report from a user equipment defining at least a first processing timeline and a second processing timeline for the user equipment; transmitting data to the user equipment for processing by the user equipment; and processing an acknowledgement from the user equipment in accordance with one of the first processing timeline or second processing timeline for the user equipment defined in the capability report.

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may support mobility between a non-terrestrial network (NTN) cell and a terrestrial network (TN) cell. If the UE is connected to an NTN cell, the UE may determine timing for a neighboring TN cell using a reference timestamp. A first network entity supporting the NTN cell may request the reference timestamp from a second network entity supporting the TN cell. The second network entity may output the timestamp in response to the request. The first network entity may obtain the timestamp and output an indication of the timestamp to the UE in a measurement gap configuration. The UE may use the reference timestamp to determine timing for a measurement gap and may monitor for a signal (e.g., a synchronization signal) from the second network entity supporting the TN cell during the measurement gap.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive ephemeris information associated with a satellite and a timing advance parameter associated with the satellite. The UE may modify, based at least in part on the ephemeris information, at least one of: a downlink frequency tracking loop (FTL), or a downlink time tracking loop (TTL). The UE may receive a downlink signal from the satellite based at least in part on modifying the downlink FTL or the downlink TTL. 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, from a network node associated with a first carrier, a downlink control information (DCI) transmission indicative of synchronization information corresponding to a second carrier, wherein the second carrier comprises a synchronization-signal-block-less (SSB-less) carrier. The UE may communicate via the second carrier based on the synchronization information. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications at a user equipment (UE) are described. The UE may transmit an indication of a hybrid automatic repeat request (HARQ) memory capability of the wireless device to support a variable limited buffer rate matching (LBRM) coding rate parameter that is inversely proportional to a scaling factor associated with a HARQ memory capacity of the wireless device. The UE may receive, based on the indication of the HARQ memory capability, control signaling configuring a first value for the variable LBRM coding rate parameter. The UE may communicate in accordance with the variable LBRM coding rate parameter.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit an indication of a capability of the UE to receive downlink transmissions over a plurality of component carriers with a first quantity of antennas. The UE may receive, in accordance with the indication of the capability of the UE, the downlink transmissions with at least a subset of the first quantity of antennas and over at least a subset of the plurality of component carriers.

Abstract: Interference mitigation in SSB and/or TRS processing is described. An apparatus is configured to receive, from a network node, a reference signal associated with the network node and at least one neighboring network node. The apparatus is configured to obtain Rnn information from at least one noise tap of a CIR of the reference signal. The apparatus is also configured to apply a noise whitening to the CIR based on the Rnn information.

Abstract: Aspects presented herein may enable a base station to perform demodulation reference signal (DMRS)-based channel sounding for a channel between the base station and a UE, such that the base station may configure a more suitable precoding for coherent UL multiple input multiple output (MIMO) transmission(s) of the UE without increasing communication overhead significantly or at all. In one aspect, a base station performs channel sounding for a channel based on a set of physical uplink shared channel (PUSCH) DMRS received from a UE via the channel. The base station selects a precoding to be used by the UE for a subsequent PUSCH transmission via the channel based on the channel sounding. The base station transmits, for the UE via a physical downlink control channel (PDCCH), a transmit precoder matrix indicator (TPMI) indicating the selected precoding, where the PDCCH schedules the subsequent PUSCH transmission for the UE.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. A UE capability for a multiple physical downlink shared channel (PDSCH) scheduling may be signaled from a UE to a network entity. A UE capability signaling may indicate whether the UE supports a multiple PDSCH scheduling being associated with a same time domain resource allocation (TDRA) and/or a same frequency domain resource allocation (FDRA). The network node may schedule the multiple PDSCHs, via a multiple user multiple-input multiple-output (MU-MIMO) PDSCH scheduling or a multiple downlink control information (multi-DCI) multiple transmission reception point (mTRP) PDSCH scheduling, based at least in part on the UE capability signaling. The network entity may guarantee that co-scheduled PDSCHs have the same TDRA and/or the same FDRA, which may be based at least in part on the UE capability signaling.

Abstract: An apparatus and method of wireless communications includes transmitting, by a user equipment (UE), a mid-amble position indication and/or a UE capability information, wherein at least one of the mid-amble position indication or the UE capability information facilitate identification of a mid-amble position within a slot. Additionally, the aspects include receiving, by the UE, a transmission including a transmitted slot having a preamble and a mid-amble, wherein the mid-amble is at the mid-amble position within the slot as determined based at least in part on the at least one of the mid-amble position indication or the UE capability information. For example, the preamble and the mid-amble include pilot signals, such as Demodulation Reference Signals (DMRSs).

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network node may receive second phase tracking reference signal (PTRS) configuration information for a second PTRS that is associated with a second network node. The first network node may transmit a physical downlink shared channel (PDSCH) that includes a first PTRS that is based at least in part on first PTRS configuration information, the PDSCH being based at least in part on cross-PTRS rate matching and the second PTRS configuration information. Numerous other aspects are described.

Abstract: A UE may attempt, based on a first mode, to identify a first opportunity within a preconfigured time period for a measurement associated with at least one SCC when the at least one SCC is deactivated at the UE and the measurement associated with the at least one SCC is due based on a scheduling. Based on the first mode, a radio of the UE may not be tuned to the at least one SCC when the at least one SCC is deactivated at the UE and no measurement associated with the at least one SCC is being performed at the UE. The UE may perform, if the first opportunity is identified within the preconfigured time period, the measurement associated with the at least one SCC at the identified first opportunity.

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for multiple-input multiple-output (MIMO) communications. One example method generally includes: receiving a signal using a MIMO receiver, wherein the signal includes a plurality of code blocks (CBs), each of the plurality of CBs including a first part received via a first layer of the MIMO receiver and a second part received via a second layer of the MIMO receiver, wherein the second part of each of the plurality of CBs is shifted within a spectrum by at least one resource position with respect to the first part of each of the plurality of CBs; transmitting an indication of one or more CBs of the plurality of CBs that have failed decoding at the UE; and receiving a retransmission signal including at least the one or more CBs that have failed the decoding at the UE.

Abstract: A method for wireless communication by a receiving device includes predicting with an artificial neural network, at each data block of a set of data blocks, a least complex demodulator that will achieve a goal. The predicting is based on features of a data block expected to be received at the receiving device. The method also includes dynamically selecting the least complex demodulator, from a set of demodulators with different levels of complexity, based on the features of the data block expected to be received. The method further includes demodulating the data block with the selected demodulator for the data block.

Abstract: Aspects described herein relate to receiving, from a network node, an indication of information related to a configuration, including at least one of a modulation and coding scheme (MCS), a physical downlink shared channel (PDSCH) duration, a scrambling sequence, or a reference signal location, used for transmitting downlink signals to one or more co-scheduled UEs, receiving, from the network node, a downlink signal intended for the UE, wherein the signal is interfered by one or more interference signals transmitted to the one or more co-scheduled UEs, and removing, based on the indication, the one or more interference signals from the downlink signal. Other aspects relate to transmitting the information and downlink signals.

Abstract: Aspects of the present disclosure provide apparatuses, methods, processing systems, and computer-readable mediu.ms for indicating a preference regarding a restriction on frequency resource allocation. For example, a user equipment (UE) may provide, to a network entity, an indication of a preference of the UE for a restriction on frequency resource allocation based on a frequency selectivity measurement meeting at least one condition.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of a sounding reference signal (SRS) antenna switching (AS) configuration associated with a plurality of SRS AS types associated with different quantities of transmission chains. The UE may select, from the plurality of SRS AS types, an SRS AS type for a first carrier based on a quantity of transmission chains available for the first carrier. The UE may transmit, in a transmission interval, one or more uplink signals on one or more of the first carrier or a second carrier according to the selected SRS AS type, wherein the one or more uplink signals include one or more of an SRS or an uplink communication. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) supporting carrier aggregation may receive an indicator of an activation of one or more secondary cells configured for the UE. Responsive to the activation indication, the UE may perform at least a portion of a synchronization procedure, one or more channel state information (CSI) measurements, or both, for the one or more secondary cells. After completion of the synchronization procedure, the one or more CSI measurements, or both, the UE may transmit, via an uplink control information (UCI) message, a status indication for the one or more secondary cells that indicates the completion of the synchronization procedure, the one or more CSI measurements, or both. The UE may then receive a message that requests aperiodic CSI reporting from the UE of the one or more secondary cells responsive to the status indication.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may obtain configuration information that indicates to use data splitting or data switching for transmitting data using at least one of a first uplink connection between the UE and a network node or a second uplink connection between the UE and another network node. The UE may receive, from the network node, a maximum data volume parameter that indicates a maximum data volume for the first uplink connection. The UE may transmit the data using at least one of the first uplink connection or the second uplink connection based at least in part on the configuration information and based at least in part on whether a volume of the data is greater than the maximum data volume. Numerous other aspects are described.