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) scheduling a physical downlink shared channel (PDSCH). The UE may transmit a physical uplink control channel (PUCCH) based on a PUCCH repetition factor, wherein the PUCCH repetition factor is indicated by a location of a control channel element (CCE) of the PDCCH, a PUCCH resource indicator (PRI) bitfield of the PDCCH, and at least one of: one or more parameters of the PDCCH, or one or more parameters of the PDSCH. Numerous other aspects are provided.

This disclosure provides methods, devices, and systems supporting power control parameter configuration for configured grants (CGs). In some implementations, a user equipment (UE) may receive control signaling configuring multiple sounding reference signal (SRS) resource sets and multiple sets of power control parameters for CG uplink transmission. The UE may receive downlink control information (DCI) scheduling a retransmission and indicating which set of power control parameters the UE is to use for the CG uplink retransmission. In some other implementations, the control signaling may configure multiple SRS resources sets but a single set of power control parameters. The UE may receive DCI activating the CG configuration or scheduling a retransmission, the DCI indicating a second set of power control parameters not configured by the control signaling. The UE may automatically use the power control parameters configured by the control signaling or may determine a second set based on the DCI.

Methods, systems, and devices for wireless communications are described. The method includes receiving, from a base station and at the UE of a group of UEs, control signaling indicating a link between a first search space set and a second search space set used for a multicast broadcast service, where a first downlink control channel for the group of UEs is transmitted in the first search space set and a second downlink control channel is transmitted in the second search space set, monitoring the first search space set for a first instance of control information in the first downlink control channel and the second search space set for a second instance of the control information in the second downlink control channel, and decoding the first instance or the second instance of the control information, or both, based on the monitoring.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit an initial physical uplink control channel (PUCCH) repetition, of a plurality of PUCCH repetitions, on a first component carrier of a plurality of component carrier for which PUCCH switching is enabled. The UE may select a second component carrier, of the plurality of component carriers for which PUCCH switching is enabled, that is to be used for transmitting a second PUCCH repetition of the plurality of PUCCH repetitions. The UE may transmit the second PUCCH repetition on the second component carrier. Numerous other aspects are provided.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit an initial physical uplink control channel (PUCCH) repetition, of a plurality of PUCCH repetitions, on a first component carrier of a plurality of component carrier for which PUCCH switching is enabled. The UE may select a second component carrier, of the plurality of component carriers for which PUCCH switching is enabled, that is to be used for transmitting a second PUCCH repetition of the plurality of PUCCH repetitions. The UE may transmit the second PUCCH repetition on the second component carrier. Numerous other aspects are provided.

A method by a user equipment (UE) for transmitting one or more power headroom reports (PHRs) is provided. The method includes receiving, from a base station (BS), a Radio Resource Control (RRC) configuration comprising a first RRC parameter that indicates a first operation mode of multiple PHRs for multiple transmission reception points (TRPs); and transmitting, to the BS, a PHR medium access control control element comprising a first power headroom (PH) associated with a first TRP and a second PH associated with a second TRP. The first TRP and the second TRP are associated with a serving cell of the BS. The first PH is a first Type-1 PH associated with first physical uplink shared channel (PUSCH) transmission toward the first TRP. The second PH is a second Type-1 PH associated with second PUSCH transmission toward the second TRP. The UE is configured with multi-TRP based PUSCH repetitions.

A method by a user equipment (UE) for transmitting one or more power headroom reports (PHRs) is provided. The method includes receiving, from a base station (BS), a Radio Resource Control (RRC) configuration comprising a first RRC parameter that indicates a first operation mode of multiple PHRs for multiple transmission reception points (TRPs); and transmitting, to the BS, a PHR medium access control control element comprising a first power headroom (PH) associated with a first TRP and a second PH associated with a second TRP. The first TRP and the second TRP are associated with a serving cell of the BS. The first PH is a first Type-1 PH associated with first physical uplink shared channel (PUSCH) transmission toward the first TRP. The second PH is a second Type-1 PH associated with second PUSCH transmission toward the second TRP. The UE is configured with multi-TRP based PUSCH repetitions.

A method and a user equipment (UE) for handling a survival time state are provided. The method includes: receiving a Packet Data Convergence Protocol (PDCP) configuration for indicating that a Data Radio Bearer (DRB) associated with a PDCP entity supports a survival time state functionality, the PDCP entity being associated with at least two Radio Link Control (RLC) entities; receiving an Uplink (UL) grant for retransmission of a Medium Access Control (MAC) Protocol Data Unit (PDU), the MAC PDU including data from the DRB; entering the survival time state for the DRB upon receiving the UL grant; and activating a PDCP duplication for the PDCP entity during the survival time state.

A method and a user equipment (UE) for handling a survival time state are provided. The method includes: receiving a Packet Data Convergence Protocol (PDCP) configuration for indicating that a Data Radio Bearer (DRB) associated with a PDCP entity supports a survival time state functionality, the PDCP entity being associated with at least two Radio Link Control (RLC) entities; receiving an Uplink (UL) grant for retransmission of a Medium Access Control (MAC) Protocol Data Unit (PDU), the MAC PDU including data from the DRB; entering the survival time state for the DRB upon receiving the UL grant; and activating a PDCP duplication for the PDCP entity during the survival time state.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, a system information block (SIB) that indicates a selected set of message repetition numbers from a plurality of sets of message repetition numbers. The UE may receive, from the base station, a bit field in a random access response (RAR) or downlink control information (DCI) that indicates a selected message repetition number from the selected set of message repetition numbers indicated in the SIB. The UE may transmit, to the base station, a message during a random access procedure based at least in part on the selected message repetition number. Numerous other aspects are described.