Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a control message scheduling multi-cell downlink transmissions over a set of carriers, at least two carriers in the set of carriers being associated with different downlink transmissions of the multi-cell downlink transmissions, the control message comprising frequency domain resource allocation information for a set of resource block groups for the at least two carriers in the set of carriers for the multi-cell downlink transmissions. The UE may receive the multi-cell downlink transmissions according to the frequency domain resource allocation information.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a sounding reference signal (SRS) configuration comprising a first List of SRS resource sets indicating a first SRS resource set and a second List of SRS resource sets indicating a second SRS resource set. The UE may determine, based at least in part on a transmission configuration indicator (TCI) state configuration that indicates at least one of a first TCI state or a second TCI state, a set of power control parameters corresponding to the first SRS resource set and the second SRS resource set. The UE may transmit, based at least in part on the set of power control parameters, a first SRS associated with the first SRS resource set and a second SRS associated with the second SRS resource set. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling from a network entity configuring a virtual cell group with multiple cells, where each cell may have a radio frequency spectrum band with a frequency gap that exceeds an operating band threshold. The network entity may transmit additional control signaling including information for the virtual cell group. In some cases, the additional control signaling may include resource allocation information for the virtual cell group, such that the UE may communicate multiple shared channels via different cells in the virtual cell group using the resources indicated in the resource allocation information. In some other cases, the additional control signaling may include a cancellation indication for the virtual cell group, such that the UE may refrain from communicating signals using one or more cells of the virtual cell group.

Abstract: This disclosure provides systems, methods and apparatus for channel state information reference signal (CSI-RS) resource activation or deactivation within a resource set. In one aspect, a base station (BS) may transmit control signaling to a user equipment (UE) including an indication to switch an activity status of one or more CSI measurement resources within a CSI resource set from an activated state or a deactivated state to the other. The control signaling may include a bitmap indication for the activity status for the one or more CSI measurement resources or a CSI measurement resource identifier for each CSI measurement resource in an activated state. The UE may transmit a CSI report including information from measuring a channel state, a channel interference, or both for the one or more CSI measurement resources based on the activity status of each.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a message for a semi-persistent scheduling (SPS) configuration that corresponds to an SPS configuration index. The UE may determine a control resource set (CORESET) pool index value from the message and associate a CORESET pool index value of an SPS physical downlink shared channel with the CORESET pool index value of the message. Numerous other aspects are provided.

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for using different configurations for downlink or uplink transmissions associated with different transmission configuration indication (TCI) states (e.g., transmitted on different beams). In one example, a base station may use different configurations for downlink transmissions to a user equipment (UE), and the base station may indicate the different configurations to the UE. For instance, the base station may transmit downlink control information (DCI) indicating a baseline configuration and other configurations as a delta of the baseline configuration. In another example, a base station may dynamically indicate a timing advance to a UE (e.g., in DCI or flow control feedback) for an uplink transmission from the UE associated with a TCI state, and the UE may use the dynamically indicated timing advance for uplink transmissions associated with the TCI state.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a configuration for a group-common physical downlink shared channel (PDSCH), where the group-common PDSCH is repeated for a number of repetitions. Accordingly, the UE may determine this number of repetitions and then monitor for the group-common PDSCH based on the number of repetitions. In some implementations, the group-common PDSCH may include a semi-static repetition scheme, where the number of repetitions is indicated via a group aggregation factor. Additionally or alternatively, the group-common PDSCH may include a dynamic repetition scheme, where the number of repetitions is indicated via a group repetition number. Additionally, the techniques described herein may enable the configuration for the repeated group-common PDSCH to include gaps between each repetition of the group-common PDSCH and for the UE to transmit acknowledgment feedback for the repetitions of the group-common PDSCH.

Abstract: Certain aspects are directed to a user equipment (UE) configured to receive reference signals from a network node via multiple resource element groups (REGs) including at least one REG carrying a downlink transmission. In some examples, the UE may be configured to receive, from the network node, communication parameters for a downlink transmission, the communication parameters indicative of a first resource element group (REG) bundle and a second REG bundle. In some examples, the UE may receive the downlink transmission via the first REG bundle. In some examples, the UE may be configured to perform channel estimation of the downlink transmission based on reference signals transmitted via the first REG bundle and the second REG bundle.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a first message indicating a first set of parameters associated with time domain resource allocation (TDRA) information for a first quantity of shared channels. The UE may receive a second message (e.g., downlink control information (DCI)) scheduling a set of shared channels, a second quantity of the set of shared channels exceeding the first quantity. The set of shared channels may include a first subset of shared channels corresponding to the first quantity, and a second subset of shared channels including additional shared channels. In addition, the UE may determine a second set of parameters for the second subset based on the first set of parameters, where the UE and a network entity may communicate the first subset using the first set of parameters and the second subset using the second set of parameters.

Abstract: The present disclosure relates to methods and devices for wireless communication including an apparatus, e.g., a UE and/or a cell or base station. In one aspect, the apparatus can receive DCI from a first cell of a plurality of cells, the DCI indicating at least one of a plurality of TCI states, a plurality of PL RS IDs, or a plurality of spatial relation information IDs which correspond to one or more PCIs, each of the one or more PCIs being associated with one cell. The apparatus can also determine a first PCI associated with the first cell based on at least one of a first TCI state, a first PL RS ID, or a first spatial relation information ID which correspond to the first PCI. Further, the apparatus can communicate with the first cell over a first beam based on the determined first PCI.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive one or more physical downlink shared channel (PDSCH) communications scheduled by downlink control information (DCI). The UE may transmit, for the one or more PDSCH communications, hybrid automatic repeat request (HARQ) feedback using a sub-codebook of a set of sub-codebooks, wherein the sub-codebook is a single-cell scheduling sub-codebook, of the set of sub-codebooks, or a multi-cell scheduling sub-codebook, of the set of sub-codebooks, based at least in part on whether the DCI is a first format configured for scheduling on a single carrier or a second format configured for scheduling on a plurality of carriers. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. The method may include a user equipment (UE) receiving one or more first messages that indicate one or more configurations for communications between the UE and a network entity during a plurality of periodic communication occasions. The method may also include receiving a control message that activates at least one of the one or more configurations and schedules multiple instances of the communications. Upon receiving the control message, the UE may communicate the multiple instances in accordance with the at least one of the one or more configurations, each of the multiple instances including a different set of transport blocks.

Abstract: A base station may transmit a broadcast/multicast service in a multicast broadcast single frequency network (MBSFN) area multicast communication. A method of wireless communication at a base station in accordance with an aspect of the present disclosure comprises determining a broadcast/multicast service to be provided to a user equipment (UE) in a multicast broadcast single frequency network (MBSFN) area, and transmitting a tracking reference signal (TRS) to the UE, the TRS indicating information associated with receiving the broadcast/multicast service by the UE.

Abstract: Aspects of the disclosure relate to a wireless user equipment (UE) establishing and utilizing a reference timing for a carrier or cell with multiple transmission and reception points (TRPs). A UE may receive a downlink signal on each of a plurality of component carriers (CCs), and determine respective timing events (e.g., slot boundaries, subframe boundaries, etc.) corresponding to each of the plurality of CCs. The UE may then determine a reference time for a first CC of the plurality of CCs. This reference time corresponds to a function of two or more timing events corresponding to different TRPs utilizing the first CC. The UE then determines a relative timing difference between the plurality of CCs based on this determined reference time. Other aspects, embodiments, and features are also claimed and described, including determining and utilizing a reference time on an uplink CC.

Abstract: Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) may support both unicast and multicast downlink signaling, such as on a single component carrier (CC). A UE may receive a unicast message over a first CC during a transmission time interval (TTI) using a first set of processing resources. The UE may simultaneously receive a multicast message over the first CC during the same TTI using a second set of processing resources. The first and second sets of processing resources may be associated with first and second hybrid automatic repeat request (HARQ) soft buffers, first and second CCs, or first and second transmit/receive points (TRPs).

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive one or more retransmissions of an initial group-common transmission. The UE may receive, in accordance with a first SPS configuration, a group-common transmission of a group-common downlink shared channel, the group-common transmission being associated with a first RNTI. The UE may transmit feedback information for the group-common transmission. The UE may then receive a downlink control information (DCI) message scheduling either a group-common retransmission of the group-common downlink shared channel or a unicast retransmission of the group-common downlink shared channel. The DCI may indicate that either the group-common retransmission is associated with the first RNTI or that the unicast retransmission is associated with a second RNTI that may be different from the first RNTI.

Abstract: The present disclosure relates to media access control (MAC) control element (CE) spatial relation information update for sounding reference signal (SRS). Specifically, a user equipment (UE) may receive a MAC CE from a network entity indicating a synchronization signal block (SSB) set and a SSB index within the SSB set as a reference signal (RS) for configuring spatial relation information of a SRS resource, wherein the UE is configured with a plurality of SSB sets corresponding to a plurality of physical cell identifications (PCIs) in a serving cell; and updating spatial relation information for one or more SRS resources within a SRS resource set based on the MAC CE.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may establish a connection, with base station, over a first and second component carrier and may monitor a search space configured for scheduling multiple component carriers. In some cases, the UE may be configured to monitor a search space allocated for a virtual component carrier associated with scheduling multiple component carriers, or the UE may be configured to monitor for a subset of physical downlink control channel (PDCCH) candidates in search spaces associated with the first and second component carriers, where the subset of PDCCH candidates may be allocated for multi-component carrier scheduling. The UE may receive downlink control information (DCI) that schedules a set of data transmissions over the first and second component carriers and the UE may perform or receive the set of data transmissions over the first and second component carrier.

Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a user equipment (UE) may receive, from a base station, downlink control information (DCI) that activates periodic channel state information (CSI) reporting via uplink shared channel transmissions (e.g., via physical uplink shared channel (PUSCH) transmissions). The UE may then identify a trigger condition that triggers a transmission of both a first instance of a CSI report and a second instance of the CSI report within a period of the periodic CSI reporting. Based on the satisfaction of the trigger condition, the UE may transmit the first instance of the CSI report via a first uplink shared channel transmission and the second instance of the CSI report via a second uplink shared channel transmission, where both uplink channel transmissions are within the period of the periodic CSI reporting.

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may receive a transmission from multiple transmission and reception points (TRPs) according to a communication scheme, such as a multi-TRP or single frequency network (SFN) communication scheme, in which the multiple TRPs may transmit associated reference signals based on applying different transmission configuration indicator (TCI) states. The UE may receive a control message indicating the communication scheme and, in some examples, one or more parameters that the UE is to include in a corresponding channel state information (CSI) reference signal (CSI-RS) report. The UE, based on receiving the control message, may monitor for the reference signals from the multiple TRPs and generate the CSI-RS report based on receiving the reference signals and based on the indicated communication scheme. Accordingly, the UE may transmit the generated CSI-RS report.