Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may identify, for an initial slot of a periodic interval, a number of symbols included in the initial slot and a length of cyclic prefixes used for the symbols included in the initial slot based on a subcarrier spacing that is configured for wireless communication. The length of a first set of cyclic prefixes may be based on a length of a cyclic prefix calculated for an initial symbol of the initial slot at the configured subcarrier spacing. The wireless device may perform communications based on the determined number of symbols and length of cyclic prefixes included in the initial slot. Performing communications may include allocating resources based on a length of the cyclic prefixes used for the symbols included in the initial slot.

Abstract: A method for wireless communication by a user equipment (UE) includes transmitting, to a network node, a first message indicating a capability of the UE to transmit a multiplexed low peak-to-average power ratio (PAPR) demodulation reference signal (DM-RS) and a high PAPR reference signal (RS) within a single slot. The method also includes multiplexing, associated with the capability, the low PAPR DM-RS with the high PAPR RS within the single slot. The method further includes transmitting, to the network node, the multiplexed low PAPR DM-RS and high PAPR RS within the single slot.

Abstract: Certain aspects of the present disclosure provide techniques for receiving an indication of variable tracking reference signal (TRS). A method that may be performed by a user equipment (UE) includes determining a configuration indicating a value for a variable tracking reference signal (TRS) density, monitoring for TRSs from a base station (BS) according to the indicated value for the variable TRS density, and performing at least one of frequency tracking or timing tracking based on the monitoring.

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 support a rate splitting multiple input multiple output (MIMO) communication. The UE may receive, based at least in part on the capability information, configuration information associated with the rate splitting MIMO communication. The UE may identify, based at least in part on the configuration information, at least one of a downlink control information (DCI) format, a DCI size, one or more DCI fields, or one or more DCI field sizes associated with a DCI communication associated with the rate splitting MIMO communication. The UE may monitor the DCI communication and decoding the rate splitting MIMO communication based at least in part on the configuration information and the DCI communication. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communication are described. A device may perform rate splitting on a first message for a first user equipment (UE) and a second message for a second UE, the first message comprising a first private portion and a first common portion, and the second message comprising a second private portion and a second common portion. The device may combine the first common portion and the second common portion into a third common portion. The device may generate cyclic redundancy check (CRC) parity bits associated with at least one of the first private portion and the third common portion and attach the generated CRC parity bits to one or more blocks associated with the transmission. The device may transmit the first private portion and the third common portion to the first UE, and the second private portion and the third common portion to the second UE.

Abstract: Aspects described herein relate to a user equipment (UE) determining a reference signal port of multiple configured reference signal ports to use in transmitting a reference signal for a random access message. In one aspect, a configuration indicating multiple reference signal ports to use in transmitting reference signals for a random access message can be transmitted to the UE, as well as an indication of a reference signal port of the multiple reference signal ports to be used in transmitting a reference signal for the random access message.

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 support a rate splitting multiple input multiple output (MIMO) communication. The UE may receive, based at least in part on the capability information, configuration information associated with the rate splitting MIMO communication. The UE may identify, based at least in part on the configuration information, at least one of a downlink control information (DCI) format, a DCI size, one or more DCI fields, or one or more DCI field sizes associated with a DCI communication associated with the rate splitting MIMO communication. The UE may monitor the DCI communication and decoding the rate splitting MIMO communication based at least in part on the configuration information and the DCI communication. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter may apply at least one of an amount of delay or an amount of Doppler shift to a signal transmission including a first signal for transmission from a first antenna and a second signal for transmission from a second antenna, wherein the second signal is shifted, relative to the first signal, in a delay-Doppler domain, by the at least one of the amount of delay or the amount of Doppler shift. The transmitter may output, in a time-frequency domain, the first signal from the first antenna and the second signal from a second antenna. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. Techniques described herein provide for priority and feedback resources for rate-split transmissions. In rate-splitting approaches, messages destined for various user equipment (UEs) may be split into a common portion and a private portion. The common portion of messages may be transmitted to multiple UEs, and each of the private portions may be transmitted to individual UEs, so that each UE may receive their entire respective messages. The network may assign different feedback resources for the common portion and the private portion of a rate-split transmission. The feedback resource for the common portion may be prior to the feedback resource for the private portion.

Abstract: A transmitter may be configured to transmit, to a receiver, information configuring a repetition pattern of at least one of a common part of a rate-splitting multiple access (RSMA) message or a private part of the RSMA message. The transmitter may be further configured to transmit, to the receiver, at least one repetition of the at least one of the common part or the private part of the RSMA message according to the repetition pattern. The receiver may be configured to receive the information configuring the repetition pattern. The receiver may be further configured to receive, from the transmitter, at least one repetition of the at least one of the common part of the RSMA message or the private part of the RSMA message after receiving the information configuring the repetition pattern.

Abstract: Aspects of the present disclosure can be implemented in a method for wireless communication by a first wireless node, such as a user equipment (UE) or network entity. The method generally includes identifying different patterns of phase tracking reference signal (PTRS) tones for receiving a PTRS, determining when to change at least one of the different patterns of the PTRS tones from one symbol to another, and monitoring for one or more symbols of the PTRS, from a second wireless node, according to the determination.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a configuration of a set of synchronization signal blocks (SSBs) to be transmitted by a first base station or a second base station. In some cases, the UE may be served by the first base station and the UE may receive, from the first base station or the second base station, a message indicating that a transmission of at least one SSB of the set of SSBs is canceled and indicating resources for a signal (e.g., a reference signal, alternative SSB transmission) to be transmitted by the first base station or the second base station as an alternative to the canceled at least one SSB. The UE may receive, based on the received message from the first base station or the second base station, the signal using the indicated resources.

Abstract: Apparatus, methods, and computer-readable media for facilitating wireless communication employing MU-MIMO are disclosed herein. An example method for wireless communication at a user equipment (UE) includes receiving common rate matching information for a common codeword for a rate-splitting MU-MIMO communication. The example method also includes decoding the common codeword of the rate-splitting MU-MIMO communication using the common rate matching information.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive or transmit constellation information that indicates a modulation constellation type associated with a wireless communication, the constellation information indicating, as the modulation constellation type, a uniform constellation (UC) type or a non-uniform constellation (NUC) type. The UE may transmit or receive the wireless communication based at least in part on the modulation constellation type. Numerous other aspects are described.

Abstract: A method, a computer-readable medium, and an apparatus are disclosed. The apparatus may be a UE. The apparatus may transmit, to a base station, an indication of a UE capability for PDCCH monitoring. The apparatus may configure, based on the UE capability for PDCCH monitoring, first MOs of a USS set to align with second MOs of a CSS set. The apparatus may monitor, based on the configuration, for a plurality of PDCCHs during PDCCH MOs. The PDCCH MOs may correspond to the first MOs or the second MOs. The first MOs of the USS set may be adjusted dynamically to be in same slots as the second MOs of the CSS set or to be within a predefined range of the second MOs of the CSS set.

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a user equipment (UE). The apparatus may receive, from a base station via a DCI message, an indication of at least one K1 value corresponding to a plurality of physical downlink shared channel (PDSCH) transmissions over a plurality of PDSCH resources. The DCI message may comprise scheduling information for the plurality of PDSCH transmissions. The at least one K1 value may be associated with at least one physical uplink control channel (PUCCH) resource and indicative of a PDSCH-to-hybrid automatic repeat request (HARQ) timing. The apparatus may transmit, to the base station via the at least one PUCCH resource, at least one acknowledgment/negative-acknowledgment (ACK/NACK) indication associated with the at least one K1 value and corresponding to the plurality of PDSCH resources.

Abstract: Methods, systems, and devices for wireless communications are described in which control resources may be identified, and a data transmission may be rate-matched around the one or more control channels of multiple UEs or at multiple aggregation levels in the control resources. A user equipment (UE) may identify a search space for a first control channel, and the rate-matching of the data transmission may be performed based on a location of the search space in the control resources. In some cases, a base station may provide a mapping of resources (e.g., a bitmap) within the control resources that are occupied, which may be used for rate-matching.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive, from a base station, a scheduling downlink control information (DCI) communication that schedules a physical downlink shared channel (PDSCH) transmission, the scheduling DCI including an indication of a resource allocation for a DCI communication, wherein the resource allocation for the DCI communication includes one or more resources included in a resource allocation for the PDSCH transmission, and receive the PDSCH transmission that includes the DCI communication based at least in part on the indication of the resource allocation for the DCI communication. Numerous other aspects are provided.

Abstract: A user equipment (UE) may receive and decode multiple types of transport blocks. The UE may receive, via the transceiver, a downlink control information (DCI) that indicates at least first transmission parameters for a first type of transport block for the UE and second transmission parameters for a second type of transport block for rate-splitting with a second UE. The UE may receive, via the transceiver, the first type of transport block during a first physical downlink shared channel (PDSCH) occasion based on the first transmission parameters. The UE may receive, via the transceiver, the second type of transport block based on the second transmission parameters and a third type of transport block based on third transmission parameters during a second PDSCH occasion.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine an increased bandwidth configuration for an enhanced physical uplink control channel (ePUCCH) based at least in part on an ePUCCH format of the ePUCCH, wherein the increased bandwidth configuration uses a plurality of contiguous resource blocks (RBs) for the ePUCCH; and transmit the ePUCCH using the increased bandwidth configuration. Numerous other aspects are provided.