Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a status of a repetition procedure associated with a radio resource control (RRC) connection request message of a four-step random access channel (RACH) procedure. The UE may invoke an activity state of an RRC connection setup message monitoring procedure based at least in part on the status of the repetition procedure. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device, such as a user equipment (UE), may receive, via a first control resource set (CORESET) of a plurality of CORESETs monitored by the UE, a first downlink grant that schedules a downlink data transmission to the UE. The UE may receive the downlink data transmission from a first transmission reception point (TRP) of a plurality of TRPs and transmit feedback information for the downlink data transmission to the first TRP based at least in part on the first TRP being associated with the first CORESET or the first downlink grant being received via the first CORESET.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, a control message identifying a frequency hop configuration that configures the UE to use frequency hopping when transmitting repetitions of an uplink control channel transmission. The UE, the base station, or both may determine, based on the UE being configured with the frequency hop configuration, a frequency hop for each repetition of the uplink control channel transmission. Each frequency hop may be determined based on a corresponding uplink control channel index for a respective repetition a frequency hop for each repetition of the uplink control channel transmission. The uplink control channel index may be an uplink transmission occasion index, or a repetition index. The UE may transmit the repetitions of the uplink control channel transmission using respective frequency hops in accordance with the determination and the frequency hop configuration.

Abstract: A UE receives, from a base station or a component of the base station, at least one DL grant after a reception of an UL grant, the at least one DL grant being associated with a DL cDAI value and a DL tDAI value, the UL grant being associated with an UL tDAI value and scheduling a plurality of PUSCH repetitions. The UE calculates a total number of DL grants sent to the UE based on the DL cDAI value. The UE adjusts the total number of DL grants if there is a difference between the total number of DL grants and the UL tDAI value. The UE transmits, to the base station, a HARQ codebook in at least one of the plurality of PUSCH repetitions, a size of the HARQ codebook being based on the adjusted total number of DL grants.

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, after transmitting at least a first repetition of a physical uplink control channel (PUCCH) transmission according to a first repetition factor, a dynamic indication of a second repetition factor to apply for transmitting the same PUCCH transmission. The UE determines an application time of the second repetition factor based on at least a timing of a last complete or partial transmission instance of the PUCCH transmission. The UE transmits, to the network entity, one or more additional repetitions of the PUCCH transmission based, at least in part, on the determined application time of the second repetition factor.

Abstract: Methods, systems, and devices for wireless communications are described. Generally, a network entity may configure a user equipment (UE) with transmission time interval (TTI) format information, and the UE may determine time domain windows for joint channel estimation based thereon. The network entity may also configure the UE with an association between one or more demodulation reference signal (DMRS) ports and one or more phase-tracking reference signal (PTRS) ports. The UE may maintain phase continuity across physical uplink channel transmissions within a time domain window in which a PTRS is scheduled when DMRS and PTRS are transmitted via the associated DMRS and PTRS ports (e.g., when the PTRS-DMRS association is identical across the time domain window). In some cases, the UE may not maintain phase continuity across multiple physical uplink channel transmissions occurring within a time domain window when a PTRS is also scheduled within the time domain window.

Abstract: To enable HARQ-ACK multiplexing on PUSCH in UL CA, methods, apparatuses, and computer readable medium are provided. An example method includes selecting at least one of a plurality of PUSCHs in which to multiplex one or more UCI bits, one or more of the plurality of PUSCHs being associated with one or more UL grants, the one or more UL grants including one or more UL tDAI values. The example method further includes transmitting, to a network entity, the one or more UCI bits that are multiplexed with the at least one of the plurality of PUSCHs.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive signaling from a base station including a configuration for multiple transmission time intervals (TTIs) including uplink symbols, downlink symbols, flexible symbols, or a combination. The UE may receive a grant scheduling one or more repetitions of an uplink shared channel carrying an uplink random access message from the base station. The UE may determine available TTIs for the repetitions based on a pre-TTI evaluation of symbols according to a rule that defines types of symbols available for the uplink shared channel. The UE may transmit the repetitions on the available TTIs according to the rule.

Abstract: Methods, systems, and devices for wireless communications are described. Generally, a UE may transmit, to a network entity, a first control message reporting a bundled transmission capability of the UE to transmit multiple bundled uplink transmissions for maintaining phase continuity for a plurality of physical uplink channels, receive, from the network entity, control signaling scheduling the plurality of physical uplink channels in accordance with the bundled transmission capability; and transmit, based at least in part on the control signaling, the plurality of physical uplink channels having phase continuity.

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for requesting message repetition in random access procedures. In some aspects, a first random access message can be generated for a physical random access channel (PRACH) procedure. The first random access message can include a request for repetition of a third random access message. The request can be based on a criterion that is associated with at least one of a maximum allowed transmit power, or a PRACH transmit power. The first random access message can be output for transmission to a node to initiate a random access procedure with the node. In some aspects, one or more parameters related to a threshold for determining whether to include the request can be configured by the node.

Abstract: Certain aspects of the present disclosure provide techniques for communicating using DMRS bundling modes. A method that may be performed by a first network node (e.g., a user equipment (UE)) includes transmitting, to a second network node (e.g., a base station (BS) or a portion thereof), capability information indicating a bundling capability of the first network node for one or more demodulation reference signal (DMRS) bundling modes; receiving, based on the capability information, configuration information including an indication of a particular DMRS bundling mode of the one or more DMRS bundling modes; and transmitting bundled DMRSs according to the particular DMRS bundling mode of the one or more DMRS bundling modes. In some cases, the indication included in the configuration information can indicate to perform DMRS bundling according to the particular DMRS bundling mode.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may perform beam sweeping for a physical uplink channel within time domain windows or across time domain windows based on a time domain window index. In cases where frequency hopping is enabled, the UE may transmit uplink repetitions and demodulation reference signals (DMRSs) across two frequency hops during two consecutive time domain windows using a first transmit beam, and may then follow up with transmissions across two frequency hops during the next two consecutive time domain windows using a second transmit beam. Or, the UE may transmit uplink repetitions and DMRSs in a first frequency hop with first and second transmit beams during two respective consecutive time domain windows, and may transmit in a second frequency hop with the first and second transmit beams during the next two respective consecutive time domain windows.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of a loss of coherence associated with the UE. The UE may perform at least one adjustment to a transmission parameter or a reception parameter based at least in part on the indication of the loss of coherence. For example, the adjustment to the transmission parameter may include adjusting a transmit power, adjusting a transmit frequency, adapting a transmission time, changing an antenna port, or a combination thereof. Additionally, or alternatively, the adjustment to the reception parameter may include refraining from joint channel estimation across a plurality of slots, adjusting a downscaling parameter or a frequency tuning associated with at least one reception antenna, refraining from blind decoding, or a combination thereof. 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, to a base station, an indication of whether the UE is capable of using a virtual port to transmit uplink communications using a maximum transmit power according to a power class of the UE, wherein the virtual port is a combination of two or more antenna ports. The UE may receive, from the base station, a sounding reference signal configuration based at least in part on the indication. 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 determine one or more of a mode of operation or an uplink-downlink channel reciprocity. The UE may transmit, to a network entity, a message 3 (Msg3) with repetitions during a random access channel (RACH) procedure based at least in part on one or more of the mode of operation or the uplink-downlink channel reciprocity. Numerous other aspects are described.

Abstract: A method of wireless communication performed by a base station includes receiving one or more particular signals. The method further includes receiving one or more transmissions associated with a first CC and a second CC. The one or more transmissions include first data and a first demodulation reference signal (DMRS) that are associated with the first CC, and the one or more transmissions further include second data and a second DMRS that are associated with the second CC. A determination whether to demodulate the second data using the first DMRS is based on the one or more particular signals.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that an uplink demodulation reference signal (DMRS) bundling operation associated with a physical channel has started. The UE may change an activity state of a reception operation associated with periodic downlink communications based at least in part on determining that the uplink DMRS bundling operation has started. Numerous other aspects are described.

Abstract: Aspects relate to wireless communication including the provision of the ability of a user equipment (UE) to indicate the capability of the UE for demodulation reference signal (DMRS) bundling and/or joint channel estimation (JCE). In aspects, the capability indication includes using at least a physical random access channel (PRACH) to indicate the capability of a UE for repeated transmission of the physical uplink shared channel (PUSCH) carrying a connection message, and counting of available slots that are used for the repeated transmission of the physical channel. Additionally, the UE may be configured to indicate the capability for JCE through a demodulation reference signal (DMRS) configuration or a DMRS port.

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 and prior to transmission of a radio resource control (RRC) connection request message, a phase tracking reference signal (PTRS) indication that indicates a presence of a PTRS. The UE may transmit the RRC connection request message comprising the PTRS based at least in part on the PTRS indication. 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 of one or more sets of contiguous time domain resources for a multi-slot transmission occasion. The UE may select, for a communication on the multi-slot transmission occasion, coded bits of a plurality of coded bits on one of the per slot basis or the per segment basis, for each of a plurality of segments, each segment including one of the one or more sets of contiguous time domain resources and spanning across at least two slots. The UE may interleave the coded bits on one of the per slot basis or the per segment basis to form one or more interleaved encoded bit sequences of a codeblock. The UE may transmit the communication including the one or more interleaved encoded bit sequences. Numerous other aspects are provided.