Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, a beam failure detection (BED) reference signal set in one or more slots in a full-duplex mode and in one or more slots in a half-duplex mode. The UE may detect beam failure due to self-interference based at least in part on a comparison of measurements of the BFD reference signal set in the full-duplex mode and half-duplex mode. The UE may switch from the full-duplex mode to the half-duplex mode for slots configured for the full-duplex mode based at least in part on detecting beam failure due to self-interference. Numerous other aspects are described.

Abstract: Aspects are provided for generation and transmission of MDMRS which allow matching of nonlinear model impact or properties between DMRS and data in DFT-s-OFDM waveforms as well as CP-OFDM waveforms. A UE transmits, to a network entity, an MDMRS generated from a DMRS. The MDMRS has a PAPR distribution matching a PAPR distribution of a signal including data in an uplink channel. A target PAPR of the MDMRS is based on a modulation scheme of the data. The UE also transmits the data in the uplink channel, where the uplink channel includes a PUCCH or a PUSCH. As a result of the ability of MDMRS to match the nonlinear impact of DMRS and PUSCH or PUCCH, the network entity may compensate for any EVM that may occur as a result of PAPR reduction by a nonlinear operator of the UE, and communication performance may thereby be improved.

Abstract: The present disclosure relates to methods and devices for wireless communication at an apparatus, e.g., a UE or a base station. The base station may be configured to configure one or more RACH resources for a FD RACH configuration and transmit, to at least one UE, an indication of the one or more RACH resources configured for the FD RACH configuration. The UE may be configured to receive the indication of the FD RACH configuration for the one or more RACH resources. The UE may further be configured to select, based on the received indication, at least one RACH resource of the one or more RACH resources for the FD RACH configuration and transmit, to the first base station via the selected at least one RACH resource, at least one message of a RACH procedure based on the FD RACH configuration.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication that a network node is operating in a sub-band full duplex mode in a set of symbols. The UE may identify whether to receive at least one of a synchronization signal block communication or a physical downlink control channel communication associated with a common search space in the set of symbols based at least in part on the indication. 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 cross-link interference (CLI) measurement reporting configuration indicating a reporting resource for reporting of a CLI measurement regarding an aggressor network node or an aggressor UE associated with the aggressor network node. The UE may transmit a CLI measurement report on the reporting resource, the CLI measurement report indicating the CLI measurement on a measurement resource that occurs no later than a CLI reference resource that is defined by an offset relative to the reporting resource. 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 receive, from one or more of a network node or a second UE, a reference signal in a first subband of a sub-band full-duplex (SBFD) slot. The first UE may transmit, to the network node, a cross-link interference (CLI) report that indicates: a first CLI measurement associated with the reference signal in the first subband of the SBFD slot, and a second CLI measurement associated with a second subband of the SBFD slot. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. Techniques described herein relate to schemes for managing an overlap of at least part of a tracking reference signal (TRS) with an uplink subband or a guard band in a subband full duplex (SBFD) slot or symbol. In some examples, if a user equipment (UE) and/or a network entity determines that at least a portion of a TRS is scheduled for reception in an uplink subband or a guard band of an SBFD slot or symbol, the UE and/or the network entity may: drop the TRS, puncture the portion of the TRS that overlaps with the uplink subband or the guard band; or may shift the frequency position of the TRS such that the TRS is scheduled within the downlink subband(s) of the SBFD slot or symbol.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information associated with downlink reception in an uplink subband corresponding to a subband full duplex (SBFD)-aware configuration. The UE may receive a downlink communication in the uplink subband based on the configuration information. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support resource restrictions for sub-band full duplex (SBFD) and dynamic time division duplex (TDD) operations. For example, a user equipment (UE) may receive, from a network entity, control signaling indicating a restriction to one or more slots associated with communications between the UE and the network entity. Each of the one or more slots may be associated with one or more sub-bands and the restriction may modify an availability of a duplexing setting for at least a portion of the one or more sub-bands. Additionally, the UE may communicate with the network entity via at least a subset of the one or more sub-bands of the one or more slots in accordance with the restriction.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may support partial monitoring of control resource sets (CORESETs) that overlap with uplink subbands in a full duplex time interval under certain conditions. The UE may monitor physical downlink control channel (PDCCH) candidates in the downlink subband and ignore PDCCH candidates in the uplink subband. In some examples, a UE may support monitoring of CORESETs that overlap with the uplink subbands. In such examples, the UE may assume that symbols containing CORESETs are downlink symbols (e.g., such that the symbols of the CORESET overlapping with the uplink subband are used as downlink symbols).

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive system information for performing an initial access procedure using an uplink subband of subband full-duplex symbols. The UE may transmit an initial access message in the uplink subband. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A network entity may implement a subband full duplex communication scheme. For a half duplex UE, each slot may be configured as either a downlink slot or an uplink slot. A half duplex UE may be scheduled with a transmission in a conflicting (e.g., opposite) direction with respect to the configured slot direction for the UE. The UE may determine whether to communicate a scheduled transmission in a conflicting direction of the configured slot direction in accordance with a conflict resolution scheme. A UE may receive scheduling information for a second transmission that is scheduled for the same direction as the slot in addition to the transmission scheduled for the opposite direction as the slot. The UE may apply the conflict resolution scheme to determine which transmission to communicate.

Abstract: Methods and apparatuses for wireless communication for line-of-sight Multiple-Input-Multiple-Output (LOS MIMO) are described. A first pilot signal is transmitted to a second device. The first pilot signal is at least one of a constant phase pilot or a linear phase ramped pilot for estimating a misalignment of a second antenna array of the second device with respect to a first antenna array of the first device.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless node may transmit configuration information indicating a first precoding matrix indicator (PMI) parameter and a second PMI parameter, wherein the first PMI parameter is associated with non-simultaneous activity of a distributed unit (DU) and a mobile termination (MT), and wherein the second PMI parameter is associated with simultaneous activity of the DU and the MT. The wireless node may perform a communication in accordance with a selected PMI parameter of the first PMI parameter and the second PMI parameter based at least in part on whether the DU and the MT are simultaneously active. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may generate an input signal including information for transmission over a wireless channel. The UE may perform a first waveform shaping stage on the input signal to increase an in-band emissions ratio and reduce a peak-to-average power ratio (PAPR) of the input signal. The UE may perform a second waveform shaping stage on the output of the first waveform shaping stage to reduce an adjacent channel leakage ratio of the output of the first waveform shaping stage. The UE may then transmit a signal over the wireless channel based on an output of the second waveform shaping stage.

Abstract: Wireless communications systems, apparatuses, and methods are provided. A method of wireless communication performed by a first user equipment (UE) includes receiving, from a network unit operating in full duplex mode, a configuration indicating scheduled uplink communication resources and interference level measurement resources, measuring, based on the interference level measurement resources, an interference level associated with a second UE, and performing, for a scheduled uplink communication, at least one of transmitting, based on the measured interference level associated with the second UE and based on the scheduled uplink communication resources, the scheduled uplink communication or refraining, based on the measured interference level associated with the second UE, from transmitting the scheduled uplink communication.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a message indicating one or more communication patterns from a base station. The one or more communication patterns may indicate to the UE to adjust one or more parameters for transmitting an uplink communication during a set of time resources, a set of beams, a set of ports, or any combination thereof. During the resources indicated in the one or more communication patterns, the base station may estimate a cross-link interference channel between the base station and a second base station. The one or more communication patterns may indicate a hopping pattern for each subband of a bandwidth part. The base station may configure the UE with a timing advance based on the message.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a bandwidth part (BWP) configuration indicating that a BWP is configured with cross sub-band scheduling, the BWP configuration indicating at least one sub-band associated with the BWP in which grants are to be received. The UE may receive, in the at least one sub-band, downlink control information (DCI) including a grant that schedules a communication in one or more sub-bands associated with the BWP. 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 transmit capability information indicating that the UE has a capability for an intra-band conflict resolution rule for resolving a conflict, in one or more symbols, between a first communication on a first semi-statically configured resource of a first cell and a second resource on a second cell according to a first priority of the first communication, wherein the first semi-statically configured resource is associated with a first link direction and the second resource is associated with a second link direction different than the first link direction. The UE may perform at least one of the first communication or the second communication according to the intra-band conflict resolution rule. Numerous other aspects are described.

Abstract: Aspects relate to sub-band full duplex (SBFD) resource allocation. In an aspect, a network entity configures SBFD frequency resources for one or more sub-bands based on a size of the sub-bands and a size of a bandwidth part (BWP) associated with a user equipment (UE), and provides scheduling information to the UE in which the scheduling information includes a configuration of the SBFD frequency resources based on the size of the sub-bands and the size of the BWP associated with the UE. In another aspect, a UE receives scheduling information that includes a configuration of SBFD frequency resources for one or more sub-bands in which the configuration is based on a size of the sub-bands and a size of a BWP associated with the UE. The UE then communicates with a network via the SBFD frequency resources based on the scheduling information.