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: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit capability information indicating a capability of the UE to receive multicast communications while operating in an inactive state. The UE may receive, from a first cell, configuration information that indicates a common frequency resource (CFR) associated with receiving multicast communications from the first cell while operating in the inactive state. The UE may receive, from the first cell, multicast mobility information associated with receiving multicast communications from one or more neighboring cells while operating in the inactive state. The UE may receive, while operating in the inactive state, one or more multicast communications from at least one of the first cell or a second cell based at least in part on at least one of the configuration information or the multicast mobility information. 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 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: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit capability information regarding at least one of a multicast physical downlink shared channel (PDSCH) communication for an inactive mode or a multicast physical downlink control channel (PDCCH) communication for the inactive mode. The UE may receive a configuration associated with the multicast PDCCH communication. The UE may receive the multicast PDCCH communication in accordance with the configuration. The UE may receive the multicast PDSCH communication in the inactive mode based at least in part on the multicast PDCCH communication, wherein at least one of the configuration, or the multicast PDSCH communication is based at least in part on the capability information. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling that includes an indication of a configuration for wireless communications with a wireless device using a first operating band of a radio frequency spectrum band. The first operating band may include a first carrier that is paired with a second carrier of the first operating band. The first carrier may be separated in frequency from the second carrier and used for one of transmissions from the UE or receptions at the UE, while the second carrier may be used for both transmissions from the UE and receptions at the UE. The UE may use the second carrier for both transmissions and receptions using time division duplexing (TDD) according to the configuration. The UE may concurrently communicate messages with the wireless device using the first carrier and the second carrier.

Abstract: A user terminal according to the present invention includes: a transmitting section that transmits Uplink Control Information (UCI) including at least one of retransmission control information for a downlink data channel, a Scheduling Request (SR) and Channel State Information (CSI); and a control section that controls the transmission of the UCI when a first uplink control channel and a second uplink control channel having a longer duration than that of the first uplink control channel are subjected to time division multiplexing in one or more slots.

Abstract: The present invention is designed so that, even when a sequence-based uplink control channel is used, uplink control information is reported appropriately. A user terminal according to one aspect of the present invention has a control section that determines to use one or both of a short uplink control channel, which is transmitted in a short period, and a long uplink control channel, which is transmitted in a longer period than the short uplink control channel, based on certain information, and a transmission section that transmits the uplink control information using the determined uplink control channel.

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, information that identifies an association between a first cell of a first radio access technology (RAT) and a second cell of a second RAT. The UE may perform a measurement for the first cell. The UE may determine that the measurement for the first cell satisfies a threshold value. The UE may perform an interference canceling operation for a reference signal of the second cell, or a de-weighting operation for one or more resource elements in which the reference signal interferes, based at least in part on the determination that the measurement for the first cell satisfies the threshold value and the association between the first cell and the second cell. 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 an indication for a reference signal to be transmitted on a first carrier, wherein the UE is configured for reference signal carrier switching between the first carrier and a second carrier associated with uplink data channel or control channel transmission. The UE may receive an indication for uplink transmission switching between the second carrier and a third carrier. The UE may transmit, or suspend transmission, on the third carrier during a time associated with transmission of the reference signal on the first carrier based at least in part on the UE being configured for reference signal carrier switching and uplink transmission switching. 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, signaling that indicates a relative power difference between a first cell and a second cell. The UE may apply the relative power difference in a transmission occasion that includes at least a first uplink transmission on the first cell and a second uplink transmission on the second cell, wherein applying the relative power difference causes the first uplink transmission on the first cell to be transmitted at a lower power level than the second uplink transmission on the second cell. Numerous other aspects are described.

Abstract: A terminal is disclosed including a transmitter that transmits a beam recovery request signal and a processor that controls the transmission of the beam recovery request signal. The transmission of the beam recovery request signal is controlled by the processor based on a received power that is measured using a channel state information reference signal (CSI-RS) resource or a synchronization signal (SS) block that is quasi co-located (QCL) with a demodulation reference signal of a downlink control channel. In other aspects, a radio communication method is also disclosed.

Abstract: A terminal is disclosed including a receiving section that receives information indicating a first number of preamble transmission, the information being a condition for switching from a 2-step random access procedure to a 4-step random access procedure, and information indicating a second number which is a maximum number of preamble transmission; and a control section that when a number of preamble transmission is the first number, controls to switch from a 2-step random access procedure to a 4-step random access procedure, and when the number of preamble transmission is the second number, determines a failure of the 4-step random access procedure. In other aspects a radio communication method and a system are also disclosed.

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive an indication of an uplink transmission configuration for the UE associated with an active carrier aggregation (CA) of at least two carriers in a plurality of carriers, wherein carrier switching among the plurality of carriers is enabled for the active carrier aggregation according to a carrier switching pattern. The UE may select, based at least in part on a pattern of uplink control channel occasions associated with the carrier switching pattern, an uplink control channel occasion on a carrier of the plurality of carriers, wherein the pattern of uplink control channel occasions defines at least one uplink control channel occasion on at least one carrier of the plurality of carriers for each uplink symbol associated with the active CA. The UE may perform an uplink control transmission on the uplink control channel occasion.

Abstract: A radio communication terminal that increases the ACK/NACK resource utilization efficiency while preventing ACK/NACK collision, and that causes no unnecessary reduction of the PUSCH band in a system that transmits E-PDCCH control information. The radio communication terminal adopts a configuration including a receiving section that receives a control signal including an ACK/NACK index via an enhanced physical downlink control channel (E-PDCCH) transmitted using one configuration from among one or a plurality of configuration candidates, a control section that selects a resource to be used for an ACK/NACK signal of downlink data from among specified resources specified beforehand based on E-PDCCH configuration information used for transmission or reception of the E-PDCCH and the ACK/NACK index, and a transmitting section that transmits the ACK/NACK signal using the selected specified resource.

Abstract: The present disclosure aims at allowing a demodulation reference signal (DMRS) pattern suitable for a terminal to be selected from among a plurality of DMRS patterns including Legacy DMRS and Reduced DMRS. Disclosed is a terminal including: reception section 21 that receives uplink control information; control section 23 that determines a specific mapping pattern from among a plurality of mapping patterns for an uplink DMRS on the basis of the control information; and DMRS generating section 24 that generates a DMRS according to the specific mapping pattern.

Abstract: Wireless communications are described. A user equipment (UE) may receive a configuration message identifying a set of resources available for a plurality of UEs for transmission of feedback indications of multi-cast (or broadcast) transmission to the plurality of UEs, the set of resources comprising a plurality of subsets of resources, each subset of resources being associated with a corresponding channel metric for each UE of the plurality of UEs receiving the multi-cast transmission. The UE may determine that a feedback indication is to be provided in response to the multi-cast transmission. The UE may select, based at least in part on a channel metric of the UE, a first subset of the plurality of subsets of resources to use for transmitting a feedback message including the feedback indication. The UE may transmit the feedback message for the multi-cast transmission using resources within the selected first subset of resources.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a resource configuration for communications with a base station on a multiple sets of resources across multiple component carriers, the resource configuration including at least a first set of resources on a first component carrier and a second set of resources on a second component carrier. The UE may receive, from the base station, a downlink control information (DCI) message on the first component carrier, the DCI message including a DCI format that controls the multiple of sets of resources across the plurality of component carriers. The UE may determine that the first set of resources and the second set of resources are one of activated or released based on a first indication in the DCI message.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may selectively determine to decode a downlink shared channel multicast transmission based on whether the downlink shared channel includes a retransmission of an initial multicast transmission. A base station may transmit a message in a downlink control channel to indicate if the downlink shared channel is carrying the retransmission of the initial multicast transmission. For example, the base station may transmit a group random network temporary identifier, downlink control information with a retransmission indicator bit, or both to indicate if the downlink shared channel is carrying the retransmission. In some cases, the message in the downlink control channel may be received at a layer one (L1) of the UE, and the downlink shared channel transmission may be decoded at L1 of the UE and sent to a layer two (L2) of the UE for processing.

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 via a system information block (SIB), a random access configuration associated with aerial UEs, wherein the random access configuration indicates one or more aerial UE specific parameters. The UE may transmit, to the base station, a random access message during a random access procedure based at least in part on the one or more aerial UE specific parameters indicated in the random access configuration associated with aerial UEs. 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 monitor a search space associated with a physical downlink control channel (PDCCH) corresponding to a multicast/broadcast (MBS) physical downlink shared channel (PDSCH) for at least one MBS PDCCH communication having a payload that is scrambled according to a PDCCH payload scrambling sequence based on a value of a radio network temporary identifier (RNTI), wherein the value of the RNTI is equal to a group-RNTI (G-RNTI) or zero. The UE may receive the at least one MBS PDCCH communication. Numerous other aspects are described.