Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an indication of search space set parameters for a first cell associated with an uplink carrier and a second cell associated with a downlink carrier, the first cell comprising an uplink-only cell and the second cell comprising a downlink-only cell. The UE may receive a grant scheduling an uplink transmission via the first cell using the uplink carrier, a downlink transmission via the second cell using the downlink carrier, or both, the grant received according to the search space set parameters and via the downlink carrier of the second cell or a second downlink carrier associated with a third cell. The UE may perform the uplink transmission, receive the downlink transmission, or both, according to the grant.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit an indication of a set of frequency bands supported for uplink transmission switching between frequency bands, the frequency bands including one or more bandwidth parts. The UE may transmit an indication of a subset of the set of frequency bands, the subset supported for dynamic uplink transmission switching between the frequency bands. The UE may transmit one or more uplink communications via one or more frequency bands of the subset of the set of frequency bands. Numerous other aspects are described.

Abstract: A UE may determine a number of antenna ports associated with a frequency band that includes one or more CCs. The determined number of antenna ports may be based on a plurality of UL Tx chains for the one or more CCs/frequency band. The UE may switch from a first UL Tx chain to a second UL Tx chain, at least one of which may be associated with the one or more CCs/frequency band. The number of antenna ports may correspond to a maximum number of antenna ports of an individual CC of the one or more CCs, or to a sum of antenna ports of the one or more CCs. For the latter, the number of antenna ports may be limited to an available number of UE antenna ports when the sum of antenna ports is greater than the available number of UE antenna ports.

Abstract: Certain aspects of the present disclosure provide techniques for configuring and operating virtual cells including virtual cells operating in non-contiguous subbands. A method that may be performed by a user equipment (UE) includes: receiving signaling indicating a plurality of non-contiguous subbands configured for a virtual cell; and communicating in the virtual cell via the non-contiguous subbands.

Abstract: Disclosed is a base station capable of appropriately configuring a resource on which an EPDCCH is located when soft combining is applied. The base station includes a configuration section that configures an EPDCCH set in a plurality of subframes, where the EPDCCH set is formed of ECCEs to which control information (assignment information) transmitted over the plurality of subframes is assigned. The base station includes an assignment section that assigns the control information to any of the ECCEs in each of the plurality of subframes.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may transmit a multi-cell scheduling downlink control information (DCI) associated with at least two component carriers (CCs) for multi-cell communication with a user equipment (UE), the multi-cell scheduling DCI including a hybrid automatic repeat request (HARQ) process identification field that is based at least in part on a merged HARQ process space associated with the at least two CCs. The network node may receive HARQ feedback associated with the multi-cell communication, the HARQ feedback being based at least in part on the merged HARQ process space. Numerous other aspects are described.

Abstract: The present disclosure is designed to determine appropriate spatial resources for uplink control channels. A user terminal has a receiving section that receives, through higher layer signaling, a plurality of entries of information related to a spatial resource for an uplink control channel, and receives specifying information that specifies, amongst the plurality of entries, entries that correspond respectively to the plurality of uplink control channel resources, by means of a control element of media access control, and a control section that controls determination of one of the plurality of uplink control channel resources, and controls transmission of the uplink control channel, by using an entry that corresponds to the determined uplink control channel resource, amongst the specified entries.

Abstract: Aspects described herein relate to communicating with one or more cells for receiving a multicast and/or broadcast service (MBS), and providing MBS continuity in device mobility scenarios. In an aspect, one or more cells for reselection from a current cell can be detected, where the current cell supports a UE interested MBS. The one or more cells can be evaluated for reselection based at least in part on whether the one or more cells support the UE interested MBS to determine a target cell for reselection. Cell reselection can be performed to the target cell.

Abstract: Certain aspects of the present disclosure provide techniques for configuring for communications on noncontiguous carriers of a single cell. By combining multiple noncontiguous carriers into a single cell, broadcast overhead can be reduced and cell management (i.e., only one cell) can be simplified. For example, a network entity may transmit to a user equipment (UE) configuration information that configures the UE for communications on noncontiguous carriers of a single cell. The network entity and the UE may then communicate on the noncontiguous carriers in accordance with the configuration information.

Abstract: A user terminal includes a receiving section that receives information indicating a type of a codebook corresponding to each service, and a transmitting section that maps, to the codebook, delivery confirmation information for a downlink shared channel associated with each service and that transmits the codebook. Thus, feedback of an HARQ-ACK can be flexibly controlled.

Abstract: Aspects are provided which allow a UE to apply power-efficient UCI multiplexing rules accounting for situations in which CCs of overlapping PUCCH and PUSCH are in different carrier groups during inter-band CA to result in improved transmission performance. The UE transmits UCI in a PUCCH in a first CC in response to the PUCCH overlapping in time with a PUSCH in a second CC and the first CC being associated with a different carrier group than the second CC. Alternatively, the UE transmits UCI in the PUSCH in the second CC in response to the PUCCH overlapping in time with the PUSCH and the first CC being associated with a same carrier group as the second CC. Furthermore, the UE may apply a diversity scheme for UCI transmissions to achieve improved reliability of UCI feedback. The UE may also indicate which carrier includes UCI based on different DMRS configurations.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may monitor a configured set of control channel elements (CCEs) for physical downlink control channel (PDCCH) decoding for a scheduled cell of a set of scheduled cells, wherein the configured set of CCEs is on a per scheduled cell basis or a per carrier indicator field value basis. The UE may decode downlink control information (DCI) in one or more CCEs of the monitored configured set of CCEs. Numerous other aspects are described.

Abstract: Wireless communications systems and methods related to sidelink communications between user equipments (UEs). A method of wireless communication performed by a first UE comprises establishing a connection with a second UE on a first frequency channel; transmitting, via the first frequency channel, an indication of resources on a second frequency channel; transmitting, via the second frequency channel using the indicated resources, one or more signals sweeping a plurality of beam directions; receiving, via the first frequency channel or the second frequency channel in response to transmitting the one or more signals, an index associated with a preferred beam direction; and communicating with the second UE in the second frequency channel using the preferred beam direction.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a mobile station may transmit a capability indication identifying a search space sharing capability for the mobile station on a scheduling cell. The mobile station may monitor, on the scheduling cell, a first set of physical downlink control channel (PDCCH) monitoring occasions scheduling a scheduled cell and a second set of PDCCH monitoring occasions scheduling the scheduling cell. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described for uplink shared channel resource allocation for multi-cell scheduling. A user equipment (UE) may receive a downlink control information (DCI) message including a first set of bits and a second set of bits defining resource allocation across multiple network entities, as well as indicating that uplink shared channel messages to a first network entity and a second network entity are scheduled according to a resource allocation type. The first set of bits may indicate one or more resource block indices and the second set of bits may indicate one or more resource block set indices. The UE may transmit the uplink shared channel messages to the first network entity and the second network entity according to the first set of bits and the second set of bits.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a message to a network entity, such as a base station, indicating a capability of the UE to support multiple supplemental uplink frequency bands bundled to a serving cell. The UE may transmit the capability in a capability report with other capability information, or independent of a capability report. The UE may receive an information element (IE) in control signaling. The IE may indicate a set of supplemental uplink frequency bands for the serving cell. Each supplemental uplink frequency band may span one or more supplemental uplink carriers. The UE may receive additional control signaling scheduling one or more uplink transmissions on at least one supplemental uplink frequency band for the serving cell.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a first indication of a first cell associated with a first uplink carrier and a first downlink carrier and a second cell associated with a second uplink carrier, wherein the second cell comprises an uplink-only cell. The UE may receive, via the first downlink carrier of the first cell or via the second downlink carrier associated with a third cell, a second indication of subsequent communications to be performed via the first uplink carrier of the first cell, the second uplink carrier of the second cell, or both. The UE may perform the subsequent communications according to the second indication, wherein the subsequent communications comprise at least one of access communications, uplink communications, or both.

Abstract: Aspects described herein relate to communicating with one or more cells for receiving a broadcast service, and providing broadcast service continuity in device mobility scenarios. In some aspects, a user equipment (UE) can transmit a broadcast service interest indication to a serving cell to facilitate receiving the broadcast service during mobility to provide the broadcast service continuity.

Abstract: A method for wireless communication at a user equipment (UE) and related apparatus are provided. In the method, the UE receives a set of configuration parameters related to a hybrid automatic repeat request (HARQ) acknowledgement (ACK) codebook from a network entity, and identifies an operating state for each component carrier (CC) of multiple CCs associated with the UE based on the set of configuration parameters. The UE further allocates one or more entries of the HARQ ACK codebook based on the operating state for each CC of the multiple CCs, and transmits the HARQ ACK feedback associated with the one or more entries of the HARQ ACK codebook to the network entity.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a physical downlink control channel (PDCCH) message indicating initiation of a random access procedure, the PDCCH message having a dedicated format with a set of fields for indicating one or more parameters associated with the initiation of the random access procedure. The UE may transmit a first random access message of the random access procedure, the first random access message being associated with the one or more parameters. Numerous other aspects are described.