Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may transmit, via a beam and via a first subset of intelligent reflection surfaces (IRSs), a first transmission comprising a first reference signal or a first sounding reference signal (SRS) request. The network node may obtain a first signal quality measurement based at least in part on the first transmission. The network node may transmit, via the beam and via a second subset of IRSs, a second transmission, the second transmission comprising a second reference signal or a second SRS request. The network node may obtain a second signal quality measurement based at least in part on the second transmission. The network node may identify at least one IRS based at least in part on the first signal quality measurement and the second signal quality measurement. Numerous other aspects are described.

Abstract: Certain aspects of the present disclosure provide techniques for wireless communication. A method that may be performed by a base station (BS), the method including determining a plurality of root sets, wherein each root set of the plurality of root sets comprise at least a first root and a second root. In some examples, the method includes transmitting signaling that indicates the plurality of root sets.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an indication of an intra-symbol phase tracking reference signal (PT-RS) pattern for a guard interval (GI)-based single carrier waveform, such as a discrete Fourier transform-spread-orthogonal frequency division multiplexed (DFT-s-OFDM) waveform. The UE may generate one or more PT-RSs according to the intra-symbol PT-RS pattern. The UE may arrange the one or more PT-RSs within a GI region of the GI-based single carrier waveform, within a data region of the GI-based single carrier waveform, or both, as indicated by the intra-symbol PT-RS pattern, and may transmit the one or more PT-RSs using the GI-based single carrier waveform. The PT-RS pattern may be based on a quantity of resource elements of the GI region, a quantity of resource blocks of the GI-based single carrier waveform, or both.

Abstract: Methods, systems, and devices for wireless communication are described. A transmitting device may determine a power amplifier operating mode associated with non-linear distortion of an input waveform for a power amplifier, where the power amplifier operating mode may be from a set of two or more power amplifier operating modes each associated with respective amounts of the non-linear distortion. The transmitting device may transmit a set of reference signals associated with estimation of a wireless channel for a transmission, and the transmitting device may further transmit an additional set of reference signals associated with non-linear distortion mitigation for the transmission. In some examples, a resource density of the additional set of reference signals may be based on the power amplifier operating mode. In some examples, the transmitting device may transmit an indication of the power amplifier operating mode, the resource density, or both, to a receiving device.

Abstract: Disclosed are techniques for positioning. A receiver receives complementary timing information associated with the positioning reference signals (PRS) of a repetition of a PRS sequence. The complementary timing information distinguishes a repetition of a PRS sequence from remaining repetitions of the PRS sequence. Based on the complementary timing information associated with different PRS from different non-terrestrial vehicles indicating that the PRS were transmitted during the same radio frame, the receiver can determine an observed time difference of arrival (OTDOA) between the PRS received from the respective non-terrestrial vehicles.

Abstract: Methods, systems, and devices for wireless communications are described. A satellite may determine one or more sets set of resources for conveying reference signals to a user terminal. In one example, the satellite may determine a set of resources that includes multiple resource groups each associated with a respective frequency range. In another example, the satellite may determine multiples sets of resources and each set of resources may include resources within respective frequency range. Upon determining the set(s) of resources, the satellite may transmit an indication of the set(s) of resources to a user terminal.

Abstract: Aspects presented herein may enable a base station to transmit information associated with PBCH/MIB and information associated with DCI in a combined block to enhance the initial access procedure for a UE. In one aspect, a base station transmits a combined block comprising a synchronization signal and information scheduling a SIB1 PDSCH. The base station transmits the SIB1 PDSCH based on the information.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive first control information indicative of a resource allocation for reception of periodic multi-slot multi-cast transmissions. In some aspects, the control information may indicate a semi-persistent scheduling (SPS) configuration for multi-cast, multi-slot signaling. The resource allocation may include a set of multiple reception occasions over a set of multiple slots. The UE may receive one or more transport blocks during the set of multiple reception occasions over the set of multiple slots. In some aspects, the UE may transmit feedback information for the one or more transport blocks.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration that indicates, within each symbol of a plurality of symbols, an extra guard interval (GI) before data and a tail GI after the data. The UE may decode first data within a first symbol of the plurality of symbols at a first time location that is based at least in part on the extra GI and the tail GI within the first symbol. The UE may decode second data within a second symbol of the plurality of symbols at a second time location that is based at least in part on the tail GI within the second symbol. Numerous other aspects are described.

Abstract: In a wireless network, a frame structure may include a padding duration at the start of every half subframe to ensure that an integer number of symbols fit within a duration of the half subframe. In some aspects, to avoid wasting time domain resources, the padding duration may be utilized for other purposes. For example, because a single carrier waveform is not bound to a fixed Fast Fourier Transform size, a wireless node may use the padding duration to transmit a single carrier symbol that has a shorter length than a full symbol associated with a subcarrier spacing. Additionally, or alternatively, in cases where a wireless node is configured to transmit or receive a signal in a first symbol of a half subframe that is associated with a different power level than a preceding symbol, the padding duration may be used to adapt a transmit power or a receive gain.

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a base station may configure a set of transmission parts each including different sets of time domain resources or different sets of frequency domain resources, or both, and may specify a waveform type for each of the set of transmission parts. In some examples, the base station may configure the set of transmission parts for a user equipment (UE) and, accordingly, the UE and the base station may communicate over a transmission part of the set of transmission parts via signaling that is based on a waveform type that is associated with the transmission part over which the UE and the base station communicate. The base station may control over which transmission part of the set of transmission parts the UE and the base station communicate via a configured timer or via explicit activation and deactivation signaling.

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to mobility techniques that allow for mobility of a user equipment (UE) between a set of cells. A method that may be performed by a UE includes receiving signaling configuring the UE with a set of cells that support physical (PHY) layer or medium access control (MAC) layer mobility signaling and with a measurement configuration for the set of cells, reporting, to a network entity, measurements for at least some of the set of cells in accordance with the measurement configuration, and receiving, from the network entity, PHY layer or MAC layer mobility signaling to move the UE to one of the cells in the set, wherein the mobility signaling is based, at least in part, on the reported measurements.

Abstract: Apparatus, methods, and computer-readable media for facilitating per bandwidth part TCI state or spatial relation are disclosed herein. For example, aspects disclosed herein provide techniques for enabling a UE (e.g., a reduced capability UE) to associate at least one of a TCI state or a spatial relation with respective hopping regions. An example method for wireless communication at a UE includes determining, while communicating using a first frequency range comprising a first set of frequency hops, at least one of a TCI state or a spatial relation for communicating using a second frequency range comprising a second set of frequency hops. The example method also includes communicating, after switching communication from the first frequency range to the second frequency range, using the second frequency range based on the determined at least one of the TCI state or the spatial relation.

Abstract: A user equipment (UE) may be configured to apply a set of parameters associated with receiving at least one pilot signal over a time period for receiving at least one SS that is quasi-collocated with the at least one pilot signal. The UE may be further configured to receive the at least one SS based on applying the set of parameters over the time period. A base station may be configured to transmit at least one pilot signal using a first set of transmission parameters. The base station may be further configured to transmit a SS that occupies a single symbol using a second set of transmission parameters quasi-collocating the SS with the at least one pilot signal.

Abstract: Satellites in a non-terrestrial network may provide positioning reference signals (PRS) to user equipment (UE), with which the UE may determine its position using propagation delay difference measurements, such as Time Difference of Arrival (TDOA) measurement. Due to the large distances between satellites and the UE, the propagation delay differences in the PRS received from satellites may exceed half a radio frame, resulting in a frame level timing ambiguity in the differential measurements. The satellites transmit secondary PRS, along with primary PRS, that include timing information to resolve frame level timing ambiguity of the primary PRS. The positioning occasions in the secondary PRS, for example, may be aligned with corresponding positioning occasions primary PRS within each radio frame, and are transmitted with a periodicity that is an integer multiple (greater than 1) of that of the primary PRS to resolve the frame level timing ambiguity of the primary PRS.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station (BS) may determine at least one of a variable random access response (RAR) window start time, a variable maximum quantity of slots for an index of a first slot of a physical random access channel occasion, or scheduling information related to one or more variable delays for an uplink transmission. The BS may transmit, to a user equipment, at least one of information that identifies the RAR window start time, information that identifies the variable maximum quantity of slots, or the scheduling information. Numerous other aspects are provided.

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for a user equipment (UE) to indicate both configured grant (CG) skipping and CG group switching information in a single uplink control message. For example, a network entity may indicate one or more behaviors (e.g., a first behavior for CG skipping, a second behavior for CG group switching from a first CG group to a second CG group, etc.). The UE may transmit, to the network entity, a single uplink control message including a single indicator which can refer to the first behavior, or the second behavior (e.g., and may refer to switching from any CG group to another CG group).

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured with a random access channel (RACH) resource associated with a capability level of the UE. The capability level-specific RACH resource may overlap one or more other RACH resources. The UE may identify whether the UE is enabled to report capability information or preferences, or both, using the capability level-specific RACH resource based on how the capability level-specific RACH resource overlaps with the one or more other RACH resources.

Abstract: Methods, systems, and devices for wireless communication are described. In some systems, a user equipment (UE) and a network entity may support conditional cross-carrier hybrid automatic repeat request (HARQ) retransmissions. The UE may transmit a capability message to the network entity to indicate a capability of the UE to support the cross-carrier HARQ retransmissions. The UE or the network entity may transmit a message on a first component carrier. The UE or the network entity may retransmit the message on a second component carrier based on an availability of resources for retransmitting the message, based on the capability of the UE, and based on one or more conditions associated with communications by the UE satisfying a threshold condition for cross-carrier HARQ retransmissions. For uplink communications, the UE may perform the transmitting and conditional retransmitting. For downlink communications, the network entity may perform the transmitting and conditional retransmitting.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may process, for a physical uplink control channel (PUCCH) communication in a millimeter wave (mmWave) band, information for transmission, wherein the information is modulated using an extended sequence with a length greater than a base sequence length for PUCCH communication or wherein a cyclic shift, of a plurality of cyclic shifts for a set of contiguous resource blocks for transmission of the information, is applied to the information based at least in part on a resource block group associated with the information. The UE may transmit the information based at least in part on processing the information. Numerous other aspects are described.