Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may identify a resource for wireless communication, the resource being in a first state where the resource is active for wireless communication and is inactive for a communication failure recovery procedure. The wireless device may determine that a communication failure has occurred during a first communication period. In some cases, one or more techniques for confirming the communication failure may be used to verify the failure. The wireless device may transition during a second communication period and based at least in part on the communication failure, the resource to a second state where the resource is inactive for wireless communication and is active for the communication failure recovery procedure. The wireless device may perform the communication failure recovery procedure using the resource transitioned to the second state.

Abstract: Aspects of the disclosure are directed to methods and techniques for wireless communication via non-codebook beam directions to allow dynamic beamforming using non-codebook beam directions. In certain aspects, a user equipment (UE) may obtain, from a wireless node, a plurality of reference signals (RSs) via one or more receive beams, wherein each of the one or more receive beams is characterized by one of a plurality of codebook beam directions. In certain aspects, the UE may estimate a first non-codebook beam direction of a transmit beam of the wireless node based on a measurement of one or more RSs of the plurality of RSs. In certain aspects, the UE may output a report comprising an indication of the first non-codebook beam direction for transmission to the wireless node.

Abstract: Methods, systems, and devices for wireless communication are described. A communication device may support precoding matrix indicator (PMI) reporting. For example, the communication device may receive first control signaling indicating a reporting configuration for a set of PMI parameters. The communication device may transmit second control signaling indicating a set of PMI parameters according to a first periodicity and based on the reporting configuration. The communication device may transmit third control signaling indicating a subset of PMI parameters of the set of PMI parameters according to a second periodicity and based on the reporting configuration.

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 number of bits to be used in a downlink control information (DCI) message, the bits configured to indicate a transmission reception point (TRP) mode configuration for one or more subsequent communications. The UE may receive the DCI message having the number of bits to indicate the TRP mode configuration for the subsequent communications. 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 base station, a transmission configuration indicator (TCI) configuration that includes shared TCI state configuration information for multiple TCI state indication modes. The UE may receive, from the base station, an indication of a TCI state indication mode of the multiple TCI state indication modes. The UE may communicate with the base station using a beam direction associated with a TCI state in the TCI state indication mode based at least in part on the shared TCI state configuration information. Numerous other aspects are described.

Abstract: Method and apparatus for PUSCH selection for UCI multiplexing. The apparatus determines that a transmission of UCI would at least partially overlap in time with transmissions of a set of PUSCHs. The set of PUSCHs including a plurality of PUSCHs on a same CC that are at least partially overlapping in time. The apparatus selects one PUSCH of the set of PUSCHs for multiplexing the UCI. The selection of the one PUSCH being based at least partially on a group association between the UCI and each PUSCH of the set of PUSCHs, or one or more transmission parameters of each PUSCH of the plurality of PUSCHs. The apparatus multiplexes the UCI on the selected one PUSCH for simultaneous transmission.

Abstract: Aspects described herein relate to determining and/or scheduling resources for devices in view of cross-channel interference measured between the devices. In an aspect, a first user equipment (UE) can determine a signal measurement of a signal transmitted by a second UE in a first channel, determine, based at least in part on the signal measurement, a cross-channel interference parameter of interference experienced by the first UE, and transmit, to a serving base station that serves the first UE, an indication of the cross-channel interference parameter. In another aspect, a base station can determine a cross-channel interference parameter of interference experienced by a first UE in at least a first channel, based on a signal transmitted by a second UE in a second channel, and can schedule communications for the first UE based at least in part on the cross-channel interference parameter.

Abstract: Aspects of the present disclosure provide mechanisms for transmitting discovery signals to enable discovery of a cell. Synchronization signal blocks (SSBs) carrying the cell identifier of the cell may then be transmitted either on-demand or with a higher periodicity than discovery signals. The discovery signals and SSBs may be transmitted within a same bandwidth part and on at least overlapping sets of frequency resources.

Abstract: This disclosure provides systems, methods, and apparatuses to enable a user equipment (UE) and a base station to improve reception of a random access response (RAR) by the UE in an unlicensed spectrum. A network may define a procedure for calculating a random access radio network temporary identifier (RA-RNTI) specific to unlicensed spectrum based on an extended RAR window. The calculation procedure may allow UEs transmitting in the window to calculate a unique RA-RNTI and identify a RAR addressed to the UE using the unique RA-RNTI. Additionally, or alternatively, a base station may transmit a RAR including timing information associated with a corresponding random access request. Accordingly, a UE may receive the RAR and compare the timing information with its own random access request in order to determine whether the RAR is addressed to the UE. Additionally, a UE may monitor a secondary cell or a sub-band for the RAR.

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device such as a user equipment (UE) may receive, from a scheduling device such as a base station, control signaling which indicates a semi-persistent scheduling (SPS) configuration scheduling a burst of multiple downlink shared channel transmission opportunities during an SPS interval. Based on receiving the SPS configuration, the UE may receive downlink signaling from the base station in a downlink shared channel transmission opportunity of the SPS interval. In some other aspects, a UE may receive control signaling which indicates a configured grant (CG) that schedules a burst of multiple uplink shared channel transmission opportunities during a CG timing interval. Based on receiving the CG, the UE may transmit uplink signaling to the base station in an uplink shared channel transmission opportunity indicated by the CG.

Abstract: Systems, methods, and apparatuses, including computer programs encoded on computer storage media, are directed to configuration of a beamforming vector using an estimated covariance matrix, which may reduce latency commensurate with a beam training procedure. An apparatus may receive, from another apparatus, information indicating a configured subset of a set of TX beams at the other apparatus. The other apparatus may transmit pilot signals via the configured subset of the set of TX beams. The apparatus may transmit, to the other apparatus, information associated with the set of beam pairs of the apparatus and the other apparatus. The apparatus may estimate a channel covariance matrix using the accumulated signal strength value, and may calculate a beamforming vector from the channel covariance matrix. The apparatus and the other apparatus may perform a beam training procedure using respective beamforming vectors.

Abstract: Techniques are provided for managing transmit and receive beams in a millimeter wave (mmW) communication system for use in bistatic radio frequency (RF) sensing. An example method of tracking targets with bistatic radio frequency sensing includes receiving one or more sensing reference signals, generating a signal report based at least in part on the one or more sensing reference signals, transmitting the signal report, receiving tracking signal configuration information, receiving one or more tracking reference signals identified in the tracking signal configuration information, and tracking one or more targets associated with the one or more tracking reference signals.

Abstract: Apparatus, methods, and computer-readable media for facilitating UE indication of null tone placement for demodulation are disclosed herein. An example method for wireless communication at a UE includes measuring one or more downlink transmissions in one or more frequency subcarriers received from a base station over a time period. The example method also includes transmitting, to the base station, a null tone indication indicating one or more locations for one or more null tones, the one or more locations for the one or more null tones based at least in part on measurements performed on the one or more downlink transmissions received over the time period.

Abstract: An on-demand scheduling request (SR) design is disclosed. Such an on-demand or triggered SR operation provides pre-configuration of user equipments (UEs) with triggered SR resources. Base stations may also configure UEs to monitor for a trigger signal within a bit field of control signaling from the base station. Upon detecting the trigger signal within such bit field, the UEs may use the triggered SR resources for transmitting triggered SR requests. Such use of the triggered SR resources may be in response to UEs detected cancelation of other periodic configured SR resources.

Abstract: Aspects relate techniques for facilitating resumption of a sidelink transmission after cancellation of the sidelink transmission within resources that overlap with an additional transmission. A transmitting wireless communication device may receive control information from a network entity including a cancellation indication indicating overlapping resources between the resources scheduled for the sidelink transmission and resources scheduled for the additional transmission. Based on the cancellation indication, the transmitting wireless communication device may cancel the sidelink transmission within cancelled resources including at least the overlapping resources and transmit the sidelink transmission via remaining resources of the scheduled resources for the sidelink transmission outside of the cancelled resources.

Abstract: Aspects relate to random access messaging. A base station may transmit a first random access message (e.g., a random access channel (RACH) Msg2) to a user equipment. The first random access message may include an indication of at least one beam that the user equipment may use to transmit a second random access message (e.g., a RACH Msg3). The user equipment may then transmit the second random access message using a beam selected from the indicated at least one beam.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a synchronization signal block (SSB) transmitted by a base station. The UE may receive system information that includes reconfigurable intelligent surface (RIS) or repeater assisted initial access information that identifies a set of SSBs that are associated with an RIS or a repeater and a modulation signature associated with the RIS or the repeater. The UE may selectively perform initial access using the SSB or search for another SSB based at least in part on the RIS or repeater assisted initial access information. Numerous other aspects are described.

Abstract: A method at a UE for indicating change in physical state of the UE includes: determining a change of the UE from a first physical state of a plurality of physical states to a second physical state of the plurality of physical states; and transmitting one or more antenna system characteristics, corresponding to an antenna system of the UE, based on determining the change of the UE from the first physical state of the plurality of physical states to the second physical state of the plurality of physical states.

Abstract: A random access procedure between a user equipment (UE) and a base station may include repetition of a random access message 3 based on an indication provided by a random access response (RAR) message including a physical downlink control channel (PDCCH) portion and a physical downlink shared channel (PDSCH) portion. The base station may transmit the RAR message to indicate at least one random access message 3 repetition parameter. The UE may determine at least one random access message 3 repetition parameter based on the RAR message. The UE may transmit the random access message 3 with repetition based on the message 3 repetition parameter, and the base station may receive the random access message 3 based on the repetition parameter, thereby improving coverage of the random access message 3.

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for wireless communication. In one aspect, a base station (BS) transmits a message to a UE indicating a designation of a signal as a PLRS. The designation of the signal as the PLRS is associated with an application time interval, and after expiration of the application time interval, the BS receives an uplink signal from the UE having a transmit power level associated with the signal.