Abstract: Methods, systems, and devices for wireless communications are described. For instance, a user equipment (UE) may receive, from a base station, a first downlink control information message in a downlink control channel, the first downlink control information message scheduling first resources of a downlink shared channel for a second downlink control information message. The UE may identify a first, UE-specific scrambling sequence for the second downlink control information message. The UE may receive, from the base station, the second downlink control information message based on the first scrambling sequence, the second downlink control information message scheduling second resources of the downlink shared channel for a data message. The UE may receive, from the base station, the data message in the second resources scheduled by the second downlink control information message.

Abstract: Disclosed are techniques for wireless sensing and/or positioning. In an aspect, a base station (BS) may define a resource set comprising a plurality of phase-coherent positioning resources, the phase-coherent positioning resources comprising phase-coherent positioning reference signal (PRS) resources, phase-coherent sounding reference signal (SRS) resources, or a combination thereof. The BS may configure a user equipment (UE) with the resource set. The BS may use the plurality of phase-coherent positioning resources, including transmitting phase-coherent PRS signals using the phase-coherent PRS resources, receiving phase-coherent SRS signals using the phase-coherent SRS resources, or a combination thereof.

Abstract: Systems and method for configuring and providing discontinuous reception (DRX) operations in sidelink (SL) mode 1 and mode 2 are disclosed. A first user equipment (UE) may operate in DRX communications with a second UE over a SL while concurrently maintaining DRX communications with a base station. In some embodiments, DRX operations may include the first UE monitoring for either one or both of transmissions in a downlink from a base station and in the SL from the second UE during an active period of a DRX cycle of the DRX configuration. In embodiments, the UE may extend the active period associated with the DRX cycle when control information from either the base station or the second UE is received. Other aspects and features are also claimed and described.

Abstract: Methods, systems, and devices for wireless communications are described. A communication device, which may be otherwise known as user equipment (UE) may receive a downlink control information (DCI) on a physical downlink control channel (PDCCH). The DCI may include one or more of an indication of a set of transmission configuration indicator (TCI) states related to a physical downlink shared channel (PDSCH), one or more receive beams associated with the set of TCI states, or a physical downlink shared channel (PDSCH) scheme. The UE may decode the DCI and may determine a temporal period associated with the indication of the set of TCI states. The UE may receive, based on the temporal period, the PDSCH according to one or more of the set of TCI states, the one or more receive beams associated with the set of TCI states, the PDSCH scheme, or one or more default receive beams.

Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a user equipment (UE) may receive, from a base station, downlink control information (DCI) that activates periodic channel state information (CSI) reporting via uplink shared channel transmissions (e.g., via physical uplink shared channel (PUSCH) transmissions). The UE may then identify a trigger condition that triggers a transmission of both a first instance of a CSI report and a second instance of the CSI report within a period of the periodic CSI reporting. Based on the satisfaction of the trigger condition, the UE may transmit the first instance of the CSI report via a first uplink shared channel transmission and the second instance of the CSI report via a second uplink shared channel transmission, where both uplink channel transmissions are within the period of the periodic CSI reporting.

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may transmit, to a base station, a capability report that includes an indication of a maximum number of reference signal resources within a transmission time interval (TTI) for which the UE supports channel state information (CSI) reporting. The maximum number of reference signal resources may be based on a capability for supporting joint CSI reporting for both a downlink and an uplink. The UE may receive, from the base station, a report configuration in response to the capability report. Subsequently, the base station may transmit reference signals to the UE, which the UE may use to determine CSI for both the downlink and the uplink. The UE may then transmit, to the base station, a CSI report including the CSI for both the downlink and the uplink, in accordance with the report configuration.

Abstract: A phase tracking reference signal (PT-RS) may be transmitted to enable a receiver to correct phase noise in wireless communication. A UE scheduled for one PDSCH with DMRS ports in two or more DMRS CDM groups that are associated with two TCI states may be configured for PT-RS using two PT-RS ports. Therefore, rather than limiting PT-RS to a single port, the PT-RS may be transmitted to the UE using two PT-RS ports. The apparatus transmits a capability indication for more than one PT-RS port for receiving a downlink shared channel based on a first TCI and a second TCI. The apparatus receives a configuration for a maximum number of downlink PT-RS ports from a base station.

Abstract: Methods, systems, and devices for wireless communications are described. A UE may determine resource amounts for transmitting feedback codebook for two different service types based on satisfaction of a multiplexing condition by overlapping resource schedules. The codebooks may be encoded according to different coding rates to generate encoded feedback codebooks. The encoded codebooks may be mapped to transmission resources according to codebook payload sizes, encoding rates, and available resources and transmitted according to the mapping.

Abstract: In an embodiment, a wireless node (e.g., UE or BS) receives from a network component (e.g., BS or core network component) a request for a positioning estimate of a UE associated with a specified time. The wireless node performs positioning measurements at a plurality of times, and determines (e.g., via interpolation or extrapolation) the positioning estimate associated with the specified time based on the positioning measurements. The wireless node transmits, to the network component, a report comprising the determined positioning estimate.

Abstract: Methods, systems, and devices for wireless communications are described. A method for wireless communication at a user equipment (UE) may include: receiving a multicast bandwidth part configuration for multicast communications between a base station and the UE, where the multicast bandwidth part configuration includes a maximum number of multiple-input, multiple-output layers to be used for the multicast communications; establishing a multicast link with the base station for multicast communications; determining to use a reduced number of antennas for multicast reception than the number of antennas used for unicast reception, or determining that the UE is able to decode the multicast communications prior to a remaining portion of the multicast communications; and receiving the multicast communications via the reduced number of antennas, or reducing the radio frequency power prior to completion of a number of repetitions or retransmissions of the multicast communications.

Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device may perform a first transmission to one or more receiving devices, the first transmission associated with a transmission type. The transmitting device may determine a feedback response for the first transmission based on monitoring for feedback messages from the one or more receiving devices in response to the first transmission. The transmitting device may select a contention window size for performing one or more subsequent transmissions based at least in part on the feedback response and the transmission type. The transmitting device may perform the one or more subsequent transmissions in accordance with a clear channel assessment procedure using the selected contention window size.

Abstract: A method of wireless communication, by a first sidelink user equipment (UE), includes periodically receiving a set of sidelink beam failure detection reference signals (RSs) from a second sidelink UE. The method includes incrementing a beam failure detection (BFD) counter in response to one or more reference signals of the set of sidelink beam failure detection RSs having a received signal strength below a threshold. The first sidelink UE starts a beam failure detection timer in response to the reference signal(s) of the set of sidelink beam failure detection reference signals having the received signal strength below the threshold. Another method by a sidelink UE may periodically transmit a set of sidelink BFD RSs to another sidelink UE. The set of sidelink BFD RSs comprise one or more sidelink receive RSs. The sidelink UE configures the other sidelink UE with the sidelink receive BFD RSs.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive, from a base station, an indication of a time gap value associated with a random access channel (RACH) procedure, wherein the time gap value is based at least in part on a capability of the base station, determine whether a physical RACH (PRACH) occasion associated with the RACH procedure is valid based at least in part on receiving the indication of the time gap value associated with the RACH procedure, and selectively transmit, to the base station, a PRACH transmission in the PRACH occasion based at least in part on determining whether the PRACH occasion is valid. Numerous other aspects are provided.

Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a user equipment (UE) may receive a control signal that triggers the UE to transmit one or more SRSs of an SRS resource set, where the SRS resource set spans multiple slots, and to receive configuration information that includes timing information for transmission of the one or more SRSs relative to a timing of receipt of the control signal. Additionally, the described techniques provide for a UE to receive a control signal that indicates an SRS beam management configuration that identifies at least a first SRS resource set and a second SRS resource set that are linked together such that the UE may determine a transmit beam for an SRS resource of the second SRS resource set based on an additional transmit beam for a corresponding SRS resource of the first SRS resource set.

Abstract: Certain aspects of the present disclosure provide techniques for synchronization signal block (SSB) patterns with gaps. A method that may be performed by a network entity (e.g., a BS) generally includes determining a synchronization signal block (SSB) pattern that identifies SSB positions for sweeping a set of SSB beams over multiple SSB bursts with gaps between at least some of the SSB positions, wherein the SSB pattern identifies a subset of the set of SSB beams to use per SSB burst. The method generally includes transmitting SSBs over the multiple SSB bursts in accordance with the pattern.

Abstract: A base station may transmit, to a UE, at least one of the SS, the PBCH, the CORESET, or the SIB, via the plurality of resources based on the indication of the at least one initial access structure. In some aspects, the SS may be time-division multiplexed with the PBCH and may be frequency-division multiplexed with the CORESET and the SIB. In one aspect, the CORESET may be time-division multiplexed with the SIB. In another aspect, the CORESET may be frequency-division multiplexed with the SIB. In some aspects, at least one switching gap may be configured after the at least one initial access structure, the at least one switching gap being configured based on an SCS.

Abstract: In some implementations, a method of wireless communication includes receiving, at a user equipment (UE) from a base station, a downlink control information (DCI) scheduling a physical downlink shared channel (PDSCH). The PDSCH includes a first transmission occasion and a second transmission occasion following the first transmission occasion during a single slot. The method further includes determining, at the UE, an overall processing time following a last symbol of the PDSCH.

Abstract: Various aspects of the present disclosure generally relate to wireless communication in a shared spectrum. In some aspects, a user equipment may receive an indication of a set of starting offsets for an uplink communication, wherein the set of starting offsets includes at least one negative starting offset relative to a start of a slot or a mini-slot in which the uplink communication is configured to start; select a starting offset from the set of starting offsets; and transmit the uplink communication, wherein the uplink communication starts at a time indicated by the selected starting offset. Numerous other aspects are provided.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may transmit, to a set of second UEs, information indicating a duplexing pattern of the first UE, wherein the duplexing pattern indicates one or more reception intervals of the first UE and one or more transmission intervals of the first UE. The UE may communicate in accordance with the duplexing pattern. Numerous other aspects are described.

Abstract: Wireless communication methods and devices for selective receiver-assisted channel sensing are provided. In some aspects, one or more receivers (e.g., UEs) can be selectively configured to perform receiver-assisted channel sensing (e.g., class A channel sensing) using at least one of trigger signaling and channel sensing configuration by a BS, UE capabilities, or operational mode. For example, a method for wireless communication performed by a user equipment (UE) includes: sensing a channel based on at least one of a receiver-assisted channel sensing trigger, or a UE capability; and transmitting, to a base station (BS) based on the sensing, channel sensing information.