Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive downlink control information that identifies a first precoder indicator selected from a set of precoder indicators and a second precoder indicator selected from a subset of the set of precoder indicators. The UE may communicate using multiple antenna panels based at least in part on the first precoder indicator and the second precoder indicator. Numerous other aspects are provided.

Abstract: Aspects described herein relate to detecting maximum permissible exposure (MPE) events and/or reporting the MPE event, related metrics, associated requests for beam switching or new time division duplexing (TDD) patterns, etc. In an aspect, a MPE event can be detected on at least one component carrier (CC) of multiple CCs configured with a first cell in inter-band carrier aggregation (CA), and one of a MPE report or a beam switching request can be transmitted to a second cell on a different CC of the multiple CCs. In another aspect, the cell can detect the MPE and can transmit, to the device, a beam switching command to switch to a new beam for uplink communications. In another aspect, the cell can transmitting, to another cell having another CC of the multiple CCs configured with the device, an indication to perform beam switching for the device.

Abstract: Wireless communications systems and methods related to wireless communications in a system are provided. A user equipment (UE) may receive from a base station (BS), an uplink (UL) scheduling grant indicating subband precoding information and a resource allocation spanning a plurality of subbands. The UE may determine a plurality of subband precoders based on the subband precoding information. Each precoder of the plurality of subband precoders may be associated with a subband of the plurality of subbands. The UE may transmit to the BS, an UL communication signal in the resource allocation using the plurality of subband precoders.

Abstract: Aspects of the present disclosure include methods, apparatuses, and computer readable media for receiving an indicator for uplink transmission indicating at least an association between at least one of one or more first reference signal ports and at least one of one or more second reference signal ports for a plurality of precoding configurations, transmitting, in response to receiving the indicator, a plurality of first reference signals via a plurality of antenna panels using the plurality of precoding configurations, wherein the plurality of first reference signals is associated with the one or more first reference signal ports, and transmitting one or more second reference signals based on the association via the plurality of antenna panels using the plurality of precoding configurations, wherein the one or more second reference signals is associated with the one or more second reference signal ports.

Abstract: Embodiments of the present disclosure relate to methods, devices, and computer readable medium for uplink signal transmitting and receiving. A method comprises: receiving a first downlink signal from a first transmission/reception point (TRP); receiving a second downlink signal from a second TRP; and transmitting an uplink control signal to at least one of the first and second TRPs, the uplink control signal comprising first control information associated with the first downlink signal and second control information associated with the second downlink signal, and the first control information and the second control information being included in the uplink control signal in an order determined by an identification related to reference signals associated with the first downlink signal and the second downlink signal. Embodiments of the present disclosure may avoid ambiguity in uplink control information bit ordering in uplink control signal transmission and reception.

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for responding to a maximum permissible exposure (MPE) condition in uplink communications. In one aspect, a user equipment (UE) wireless device may detect an MPE condition associated with a cell in an uplink channel from the UE in the wireless communication network. The UE may configure a medium access control layer control element (MAC-CE) to indicate information related to the cell associated with the detected MPE condition and an alternative beam that avoids an MPE condition for use in uplink communications. The configured MAC-CE may include a synchronization signal/physical broadcast channel resource block indicator (SSBRI) or a channel state information resource indicator (CRI) that indicates an alternative UE panel, a feasible UE panel, Tx beam for UL transmissions or Tx beam for UL transmissions taking into account the detected MPE condition.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (LIE) may select uplink communication resources to be used to transmit enhanced uplink control information (UCI) to a base station based at least in part on a size of a hybrid automatic repeat request (HARQ) codebook and an enhancement number, and transmit the enhanced UCI using the selected uplink communication resources, the enhanced UCI comprising a set of feedback bits and a set of enhancement bits, the set of feedback bits comprising at least one negative acknowledgement (NACK) bit, and wherein the set of enhancement hits indicate information associated with the at least one NACK bit. Numerous other aspects are provided.

Abstract: An apparatus receives at least one scheduling grant scheduling transmission on a first data channel and further scheduling a second data channel. The apparatus reduces a transmit power for the transmission on the first data channel with a first beam when a radio frequency (RF) exposure event occurs. The apparatus increases, after the RF exposure event occurs, a transmit power for the transmission on the second data channel with a second beam. The apparatus transmits an RF exposure report associated with at least one of the first data channel or the first beam to the base station.

Abstract: Example implementations include a method, apparatus and computer-readable medium of wireless communication at a user equipment, including receiving on a physical downlink control channel (PDCCH) during a first PDCCH monitoring occasion a first downlink control information (DCI) that schedules a physical downlink shared channel (PDSCH) for each of at least two component carriers, wherein the DCI includes a counter downlink assignment index (DAI) that indicates a number of scheduled PDSCHs up to a point that the first DCI was received and a total DAI indicating a number of scheduled PDSCHs across the at least two component carriers. The implementations further include transmitting a physical uplink control channel (PUCCH) including a position for hybrid automatic repeat request (HARQ)-Acknowledgement (ACK) bits corresponding to the PDSCH for each of the at least two component carriers. Also included is a corresponding a method, apparatus and computer-readable medium of wireless communication at a base station.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive sounding reference signal (SRS) resource set configuration information that indicates an aperiodic SRS resource set, an aperiodic downlink reference signal resource associated with the aperiodic SRS resource set, and a slot offset associated with the aperiodic downlink reference signal resource. The UE may receive downlink control information indicating that the aperiodic SRS resource set is triggered and determine a quasi co-location assumption for the aperiodic downlink reference signal resource based on the slot offset associated with the aperiodic downlink reference signal resource. The UE may measure the aperiodic downlink reference signal resource in a slot indicated by the slot offset based on the quasi co-location assumption.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a set of sounding reference signals (SRSs) based at least in part on a mapping configuration, the mapping configuration being associated with mapping the set of SRSs to a set of channel state information reference signals (CSI-RSs) received by the UE, and the set of CSI-RSs being received based at least in part on a set of reception settings, each associated with a respective CSI-RS of the set of CSI-RSs; determine, based at least in part on the set of reception settings, a set of transmission settings, each corresponding to a respective SRS of the set of SRSs; and transmit the set of SRSs based at least in part on the set of transmission settings. Numerous other aspects are provided.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment In (UE) may transmit, and a base station may receive, information indicating that the UE has a capability to support an uplink transmission configuration indication (TCI) state. The base station may transmit, and the UE may receive, downlink signaling identifying an uplink transmit beam based at least in part on the information indicating that the UE has the capability to support the uplink TCI state. The UE may transmit, and the base station may receive, uplink information using the uplink transmit beam identified in the downlink signaling. Numerous other aspects are provided.

Abstract: One innovative aspect of the subject matter described in this disclosure can be implemented in a method for wireless communication. The method includes determining a configuration of reference signal (RS) resources to be used by a user-equipment (UE) to perform beam measurements, transmitting, to the UE, an indication of the configuration of the RS resources, and receiving, from the UE, a report indicating a plurality of RS resource indicators based on the beam measurements, each of the RS resource indicators being associated with one of the RS resources. In some aspects, the BS selects a subset of the RS resources based on the report from the UE, transmits, to the UE, an indication to provide channel measurement information for the subset of the RS resources, and receives a report including the channel measurement information from the UE. The BS may also perform joint precoding of signals for transmission via the RS resources based on the channel measurement information.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a first configuration for a first sounding reference signal (SRS) set and a second configuration for a second SRS set, the first SRS set to be transmitted using a first group of antennas of the UE and the second SRS set to be transmitted using a second group of antennas of the UE; determine a size of a downlink control information (DCI) field to be included in an uplink DCI communication scheduling a physical uplink shared channel (PUSCH) transmission, the DCI field to indicate a selected SRS set; receive the uplink DCI communication scheduling the PUSCH transmission; and identify the selected SRS set based at least in part on the determined size of the DCI field and information carried in the DCI field. 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 receive downlink control information that indicates a transmit precoding matrix indicator, that identifies a precoding matrix, and a set of demodulation reference signal (DMRS) antenna ports. A first association may be between a first set of antenna indices of the precoding matrix, that form a first transmission group, and a first code-division multiplexing (CDM) group of the set of DMRS antenna ports, and a second association may be between a second set of antenna indices of the precoding matrix, that form a second transmission group, and a second CDM group of the set of DMRS antenna ports. The UE may transmit an uplink transmission according to the first association and the second association. 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 receive, from a base station, radio resource control signaling configuring an uplink transmission configuration indication (TCI) state pool that includes multiple candidate uplink TCI states associated with an uplink resource. The base station may transmit, and the UE may receive, downlink signaling that identifies, among the multiple candidate uplink TCI states included in the uplink TCI state pool, an uplink TCI state to be used to transmit an uplink communication on the uplink resource. Accordingly, the UE may transmit, to the base station, the uplink communication on the uplink resource using an uplink transmit beam based at least in part on the uplink TCI state identified in the downlink signaling. Numerous other aspects are provided.

Abstract: In a first aspect, a method of wireless communication includes receiving, by a user equipment (UE) from a first network entity, a multiple component carrier (CC) signaling message including multiple CC scheduling information. The method also includes receiving, by the UE from, a downlink control information transmission indicating a downlink control information indication for multiple CCs, and determining a first downlink control information parameter for a first CC and a second downlink control information parameter for a second CC based on the downlink control information indication and the multiple CC scheduling information. The method further includes receiving, from the first network entity, a first downlink transmission for the first CC based on the first downlink control information parameter, and receiving, from a second network entity, a second downlink transmission for the second CC based on the second downlink control information parameter. In other aspects, uplink transmissions may be sent.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that a maximum permissible exposure (MPE) condition is satisfied for the UE; transmit, to abase station, a message based at least in part on determining that the MPE condition is satisfied; and transmit, to the base station based at least in part on the MPE condition being satisfied, beam information indicating an updated transmit beam for the UE. 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 determine one or more beam metric values for one or more beams that are monitored by the UE, wherein the one or more beam metric values correspond to one or more of a beam power management maximum power reduction (P-MPR) metric, a beam uplink reference signal receive power (RSRP) metric, or a beam virtual power headroom metric; and transmit a report based at least in part on the one or more beam metric values. 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 identify a maximum permissible exposure (MPE) event associated with a beam, determine that a physical uplink control channel (PUCCH) resource for transmitting a scheduling request is unavailable based at least in part on the identification of the MPE event associated with the beam, and initiate, based at least in part on the determination that the PUCCH resource is unavailable, a physical random access channel (PRACH) procedure to transmit an uplink message. Numerous other aspects are provided.