Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may establish, with a network entity, a wireless connection that uses a set of symbols per transmission time interval (TTI) for orthogonal frequency division multiplexing (OFDM) communications, where each symbol of the set of symbols may correspond to a fast Fourier transform (FFT) window and may include a guard interval (GI) portion and a data portion within the FFT window. In some examples, the UE may receive a control message indicating at least one parameter associated with a power offset between a data signal of the set of symbols and a reference signal of the set of symbols that is associated with the data signal. As such, the UE may communicate with the network entity, the data signal, and the reference signal according to the indicated power offset using the set of symbols.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a network entity, one or more first signals that indicate a resource allocation and that indicate a set of guard interval (GI)-based waveform parameters for a GI-based waveform associated with the UE. The UE may receive, from the network entity, an indication of one or more quantized resource allocation parameters associated with the GI-based waveform. The indication may include one or more formulas for determination of the one or more quantized resource allocation parameters, the one or more quantized resource allocation parameters, or both. The UE may communicate the GI-based waveform with the network entity using the one or more quantized resource allocation parameters and the set of GI-based waveform parameters.

Abstract: Methods, systems, and devices for wireless communications are described. User equipments (UEs) that operate in sidelink mode 2 may be configured with or agree upon time windows in which full-duplex communication is supported and time windows in which half-duplex communication is supported. The UEs may agree upon beam pair links to be used for full-duplex communication during the full-duplex time windows. A first UE may transmit sidelink control information (SCI) that schedules a first sidelink shared channel communication in a first communication resource in a time window that is configured for full-duplex communication. Based on the SCI, a second UE may identify that the first sidelink shared channel communication is scheduled in the first communication resource in a full-duplex time window and may transmit a second sidelink shared channel communication to the first UE in a second communication resource that at least partially overlaps with the first communication resource.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) and a base station may support communicating uplink control messages over a physical uplink control channel (PUCCH) using a time domain waveform. For example, the base station may configure the UE with a first group of PUCCH resource sets associated with a first type of time domain waveform and a second group of PUCCH resource sets associated with a second type of time domain waveform. The base station may transmit downlink control information (DCI) to the UE that indicates a type of time domain waveform and a PUCCH resource of a PUCCH resource set. In response, the UE may select the PUCCH resource set from either the first group or the second group and may transmit an uplink control message using the indicated PUCCH resource and type of time domain waveform.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitting device may add a first extension before modulated symbols of a communication, the first extension including data from an end portion of the modulated symbols. The transmitting device may add a second extension after the modulated symbols, the second extension including data from a beginning portion of the modulated symbols. The transmitting device may apply a first weighting function that overlaps the first extension and the beginning portion of the modulated symbols. The transmitting device may apply a second weighting function that overlaps the end portion of the modulated symbols and the second extension. The transmitting device may add one or more of a header before the first extension or a tail after the second extension. The transmitting device may transmit the communication. Numerous other aspects are described.

Abstract: Method and apparatus to updated PUCCH parameters in response to channel conditions. The apparatus transmits, to a UE, a configuration to update one or more PUCCH parameters. The apparatus identifies a change of channel conditions between the UE and the base station. The apparatus transmits, to the UE, an indication to update the one or more PUCCH parameters based at least on the change of the channel conditions. The apparatus communicates, with the UE, based on a PUCCH having the one or more PUCCH parameters updated.

Abstract: Apparatus, methods, and computer-readable media for facilitating reference signal multiplexing with downlink data are disclosed herein. An example method for wireless communication at a user equipment (UE) includes receiving, from a base station, a reference signal configuration associated with at least one of a tracking reference signal (TRS) and a channel state information reference signal (CSI-RS), the reference signal configuration comprising a symbol level rate matching configuration, a precoder configuration, or a guard tone configuration. The example method also includes receiving, from the base station, a transmission comprising at least a reference signal and data based on the reference signal configuration.

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: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may reserve a first set of sidelink resources for a first transmission to a second UE. The UE may transmit a beam-based full duplex (FD) opportunity announcement associated with a second transmission that at least partially overlaps the first transmission in time, the beam-based FD opportunity announcement indicating a first transmission beam associated with the third UE. 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: Aspects described herein relate to receiving a sidelink resource reservation for receiving, at a first user equipment (UE), a first sidelink transmission from a second UE, selecting a first set of resources for transmitting a second sidelink transmission to a third UE, and reselecting, based on a self-interference metric corresponding to the first sidelink transmission received from the second UE, from the first set of resources to a second set of resources for transmitting the second sidelink transmission to the third UE.

Abstract: A method for wireless communication at a user equipment (UE) and related apparatus are provided. In the method, a UE monitors for sidelink resource reservations in slots belonging to a sidelink resource pool during a sensing window including one or more slots in which the UE transmits, an inclusion of the one or more slots being based on a condition for sidelink FD communication, and transmits a sidelink transmission using a resource selected from a subset of candidate sidelink resources in the sidelink resource pool after monitoring for the sidelink resource reservations. The method improves the efficiency and performance of SL communication by enabling FD operation and facilitating better resource selection and channel prioritization.

Abstract: A wireless device (e.g., a UE or a base station) may identify a first subcarrier mapping associated with one or more redundant subcarriers. The one or more redundant subcarriers may correspond to one or more UWs in a UW-OFDM waveform. The wireless device may identify a second subcarrier mapping associated with one or more reference signals. A simultaneous application of the first subcarrier mapping and the second subcarrier mapping may be associated with one or more collisions. The wireless device may modify at least one of the first subcarrier mapping or the second subcarrier mapping to eliminate the one or more collisions. The wireless device may generate the UW-OFDM waveform based on the modified at least one of the first subcarrier mapping or the second subcarrier mapping. The wireless device may transmit a signal based on the generated UW-OFDM waveform.

Abstract: Certain aspects of the present disclosure provide techniques for centralized beam determination for full duplex (FD) communications. An example method, performed by a wireless node, includes obtaining at least one report indicating information regarding candidate beams, selecting, from the candidate beams, a pair of beams based on the information, and outputting, for transmission, signaling indicating that at least one user equipment (UE) is to use the pair of beams for full duplex (FD) wireless communications on a first link and a second link.

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for control signal transmission. One aspect provides a method for wireless communication by a user equipment (UE). The method generally includes receiving, from a base station (BS), a message indicating multiple configurations for physical uplink control channel (PUCCH) transmission; selecting, from a sequence database, a sequence to be used for the transmission of a PUCCH in accordance with one of the multiple configurations indicated by the message from the base station; and transmitting the PUCCH using the selected sequence.

Abstract: Methods, systems, and devices for wireless communications are described. A relay user equipment (UE) may transmit, to a network entity, a relay report message including information supporting full duplex relaying of reverse link signaling from the remote UE. Such a relay report message may include information that facilitates relaying of the reverse link communications while reducing or mitigating cross-link interference (CLI), self-interference (SI), or both, in a full duplex (FD) mode. For example, the relay report message may include information triggering beam sweeping, beam selection, resource selection, etc., for the relaying of the reverse link communications. In some examples, a network entity may configure sidelink UEs with an FD sidelink slot format that supports sidelink transmissions in the final symbol of a sidelink slot (e.g., instead of relying on one or more gap symbols).

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may transmit, based at least in part on using a sidelink with a second UE, a first indication of a first availability state associated with a sidelink air interface resource and detected by the first UE. The first UE may receive, based at least in part on using the sidelink, a second indication of a second availability state associated with the sidelink air interface resource, the second availability state not generated by the first UE. The first UE may select a duplex communication configuration based at least in part on the first availability state and the second availability state. The first UE may communicate with the second UE using the sidelink air interface resource based at least in part on the duplex communication configuration. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may transmit, to a network node, an indication that a bidirectional full duplex sidelink transmission between the first UE and a second UE is feasible. The first UE may transmit, to the network node, sidelink scheduling information that is recommended for the bidirectional full duplex sidelink transmission. The first UE may receive, from the network node, downlink control information (DCI) that schedules the bidirectional full duplex sidelink transmission, the DCI being based at least in part on the sidelink scheduling information and the indication that the bidirectional full duplex sidelink transmission between the first UE and the second UE is feasible. The first UE may transmit, to the second UE, the bidirectional full duplex sidelink transmission. 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 select sidelink resources for full duplex communication from among available sidelink resources. The UE may communicate in full duplex using the selected sidelink resources. Numerous other aspects are described.

Abstract: A relay UE may identify feasibility of FD relaying at the relay UE. The FD relaying at the relay UE may include simultaneous downlink reception from a network node and sidelink transmission to a remote UE. The relay UE may transmit, for the network node, an FD relay assistance information message based on the identified feasibility of the FD relaying at the relay UE. The network node may schedule a first downlink transmission from the network node to the relay UE and at least one first sidelink transmission from the relay UE to the remote UE based on the FD relay assistance information message.