Abstract: Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) may communicate on first and second carriers, and may support either two transmit chains or three transmit chains on a second carrier. A base station may configure different sounding reference signal (SRS) resources for different numbers of transmit chains. SRS resources configured with two ports may indicate two transmit chains, and SRS resource configured with three ports may indicate three transmit chains. The base station may indicate an index associated with an SRS resource, and the UE may select (e.g., based on a mapping between the SRS Configuration Information resource index and a number of SRS ports and a number of transmit chains), a corresponding SRS resource, number of ports, number of transmit chains, or any combination thereof. The base station may indicate a number of transmit chains for a given SRS resource based on a PMI index.

Abstract: Aspects are provided which allow a base station to provide CSI report configurations and a UE to provide CSI reports in response to such configurations which account for a power savings mode of the base station. While in the power savings mode, the base station may deactivate one or more of its antenna panels or sub-panels to reduce energy expenditure, for example, while performing dynamic antenna port adaptation. To account for this antenna port deactivation, the base station may send a CSI report configuration to a UE including one or more measurement resource sets associated with the power savings mode. The UE may obtain the CSI report configuration and send a CSI report to the base station in response to a CSI measurement in the one or more measurement resource sets.

Abstract: Aspects present herein relate to methods and devices for wireless communication including an apparatus, e.g., a UE and/or a base station. The apparatus may receive, from a base station, DCI associated with SPS. The apparatus may also identify whether the DCI is EH SPS activation DCI, EH SPS reactivation DCI, data SPS activation DCI, data SPS reactivation DCI, or SPS release DCI, the EH SPS activation DCI and the EH SPS reactivation DCI corresponding to an EH configuration, the data SPS activation DCI and the data SPS reactivation DCI corresponding to a data processing configuration. Additionally, the apparatus may configure an EH component associated with the EH configuration if the DCI is the EH SPS activation DCI or the EH SPS reactivation DCI, or performing data processing associated with the data processing configuration if the DCI is the data SPS activation DCI or the data SPS reactivation DCI.

Abstract: A base station may configure CSI-IM resources in a downlink BWP in a full-duplex slot. A UE may measure interference components in the CSI-IM resources and generate/transmit a CLI report comprising the measurement of the interference components to the base station. The measurement of interference components may include an RSSI measurement of intra-cell CLI from an interfering uplink signal transmitted from an aggressor UE or a self-interference from an uplink channel of the UE. The uplink signal may be an SRS, and the CLI report may include the RSSI, an RSRP, and/or an RSRQ of the interference in the CSI-IM resources in the uplink channel. The CSI-IM resources and the CLI report may have various configurations.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a first transmit-receive point (TRP) and a second TRP, downlink control information (DCI) with a radio network temporary identifier (RNTI) that schedules downlink common signaling. The UE may receive, from one or more of the first TRP or the second TRP based at least in part on the DCI, the downlink common signaling in a common search space (CSS) associated with a single frequency network (SFN) control resource set (CORESET) that is activated with two transmission configuration indicator (TCI) states, wherein the downlink common signaling is received from one or more of the first TRP or the second TRP based at least in part on a UE capability of an SFN transmission scheme for reception of the downlink common signaling. Numerous other aspects are described.

Abstract: Various aspects relate generally to sounding reference signal (SRS) reference indicators (SRIs) indicating an SRS associated with a transmission configuration to use for transmission of a data channel communication. Some aspects more specifically relate to an SRI indicating an SRS from an SRS resource having a same duplexing type as a slot in which the data channel communication is scheduled. In some aspects, the SRI may indicate an SRS from an SRS resource that is not a most-recent SRS resource based on the most-recent SRS resource having a different duplexing type than the slot in which the data channel communication is scheduled.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive transmission configuration indication (TCI) state restriction information indicating that a TCI state associated with sub-band full-duplex (SBFD) communications is restricted for downlink communications. The UE may communicate in accordance with the TCI state restriction information. Numerous other aspects are described.

Abstract: Certain aspects of the present disclosure provide a method for wireless communication by a user equipment (UE). The UE receives, from a network entity, at least one channel state information (CSI) report configuration configuring the UE to transmit, to the network entity, a base CSI report and one or more differential CSI reports that include at least some CSI values reported relative to CSI values in the base CSI report. The UE transmits the base CSI report and the one or more differential CSI reports to the network entity, in accordance with the at least one CSI report configuration.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network node, an indication of one or more full-duplex time intervals. The UE may receive, from the network node, an indication of a timing of a downlink communication, the downlink communication including at least one of a reference signal for measurement or a control channel communication. The UE may perform an action, based at least in part on the timing of the downlink communication indicating that the downlink communication is to occur during a full-duplex time interval of the one or more full-duplex time intervals or a non-full-duplex time interval, the action being associated with the downlink communication or an uplink communication that is to occur during the full-duplex time interval. 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 slot configuration that indicates a component carrier comprising a plurality of virtual component carriers. The UE may communicate based at least in part on the slot configuration. Numerous other aspects are described.

Abstract: Methods related to wireless communication systems and transmission and/or reception of synchronization signal block (SSB) transmissions are provided. In some scenarios, communications may occur in one or more full-duplex slots. For example, a wireless communication device receives a synchronization signal block (SSB) transmission schedule. The SSB transmission schedule at least partially overlapping with an uplink (UL) frequency portion of a full-duplex slot. The wireless communication device receives one or more SSBs, where the one or more SSBs are received in at least a slot different than the full-duplex slot or in a DL frequency portion of the full-duplex slot. Other features are also claimed and described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a resource availability based at least in part on measurement information, wherein the measurement information includes information related to a first measurement regarding a set of resources and a second measurement regarding the set of resources, and wherein the measurement information relates to self-interference associated with a transmission of the UE. The UE may communicate using a resource, of the set of resources, based at least in part on the resource availability. Numerous other aspects are described.

Abstract: A user equipment (UE) may spatial time-division multiplex a plurality of sounding reference signal (SRS) ports, each of the plurality of SRS ports being associated with at least one of a set of orthogonal weights, the set of orthogonal weights corresponding to phase shifting, and transmit a plurality of SRSs via the plurality of spatially time-division multiplexed SRS ports simultaneously, each of the plurality of SRSs including at least two SRS repetition. The plurality of SRSs may be configured to form or present a quasi-co-location (QCL) receive (Rx) beam subspace. The UE may configure the plurality of SRSs to form the subspace as the QCL Rx beam subspace, and a base station may signal the UE to a specific Rx beam subspace such that it is aligned to the base station's beamforming direction, and achieve spatial multiplexing gain in the QCL Rx beam subspace.

Abstract: Aspects relate to sounding reference signal (SRS) time-domain bundling. Phase continuity may be maintained across SRS transmissions over multiple SRS occasions to enable a receiver to jointly process these SRS transmissions. In some examples, a user equipment may expect to be configured with SRS transmissions over multiple SRS occasions where SRS configurations for different SRS transmissions over different SRS occasions specify the same parameters. For example, a first SRS configuration for a first SRS transmission over a first SRS occasion may specify a first set of spatial relation information. In addition, a second SRS configuration for a second SRS transmission over a second SRS occasion may specify that same first set of spatial relation information. In this way, phase continuity may be maintained between the first SRS transmission over the first SRS occasion and the second SRS transmission over the second SRS occasion.

Abstract: A UE may identify slots to transmit and/or receive information related to one or more HARQ processes in frame structure that includes both sub-band full duplex slot types and time division duplex slot types. Based on a first slot used for control information, a UE can identify a second slot for PUSCH or PDSCH communication based on an offset between the first slot and the second determined by calculating slot offsets (e.g., based on parameters received from a base station). In some aspects, a UE may exclude certain slot duplex types (e.g., SBFD or TDD) when calculating slot offsets. In some aspects, a UE may calculate slot offsets differently for different HARQ processes corresponding to one frame. In some aspects, slot offset behaviors may be based on priority of information associated with a HARQ process.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a second user equipment (UE) may receive, from a network node, at least one message, the at least one message comprising at least one of a first common message directed to a first UE or a first private message directed to the first UE. The second UE may decode the at least one message. The second UE may receive, from the network node, a retransmission indication instructing the second UE to transmit, to the first UE, at least one retransmission of the at least one message. The second UE may transmit, to the first UE, the retransmission of the at least one message. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. One or more user equipment (UEs) and network entities may communicate signaling using an SRS hopping scheme based on a numerical quantity of orthogonal frequency division multiplexing (OFDM) symbols in each set of OFDM symbols in a sounding reference signal (SRS) resource. Additionally, or alternatively, the UEs and the network entities may communicate signaling using a power normalization factor that depends on the numerical quantity of OFDM symbols and a numerical quantity of antenna ports for the SRS. In some examples, a network entity may indicate the numerical quantity of antenna ports, the numerical quantity of OFDM symbols in each OFDM symbol set, or both to a UE in control signaling. The UE may transmit the SRS to the network entity using the SRS resource and in accordance with the SRS hopping scheme, the power normalization factor, or both.

Abstract: A user equipment (UE) receives a configuration of a first plurality of subbands having different sizes for channel state information (CSI) reporting. The configuration is for a bandwidth part configured for subband full duplexing with an uplink subband. A size of the subbands in the first plurality of subbands decreases closer in frequency to the uplink subband. The UE transmit a reduced CSI report payload including a plurality of CSI values, the reduced CSI report payload having fewer bits than a size of an absolute CSI value times a number of subbands in the first plurality of subbands. The UE may reduce the number of bits in the CSI report payload using differential CSI values instead of absolute CSI values, reporting CSI values for only a subset of the subbands, or using a fallback subband configuration with equal sized subbands.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information indicating a sounding reference signal (SRS) resource set that includes an SRS resource, the SRS resource associated with multiple antenna ports having a distributed mapping to multiple orthogonal frequency division multiplexing (OFDM) symbols of the SRS resource. The UE may transmit a plurality of SRSs on the multiple antenna ports in the multiple OFDM symbols of the SRS resource using a frequency hopping pattern that is a function of a count of a quantity of SRS transmissions, and the count of the quantity of SRS transmissions is scaled by a quantity of the multiple OFDM symbols. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communication are described. A network entity may transmit, and a user equipment (UE) may receive, control signaling that configures or schedules sub-band full-duplex (SBFD) slots or symbols. The network entity may transmit, and the UE may receive, control signaling that schedules occasions, a resource block group, or a precoding resource block group that may overlap with the SBFD slot or symbols. The UE and the network entity may regulate communications based on application of one or more rules pertaining to communications when scheduled resource overlaps with a SBFD slot or symbol.