Abstract: Method and apparatus to determine a sidelink beam and associated power control parameter for sidelink communication. The apparatus initiates a beam pairing with a second UE, the first UE being a transmitting UE and the second UE being a receiving UE. The apparatus identifies a sidelink beam from a plurality of sidelink beams and at least one power control parameter for sidelink communication with the second UE. Different sidelink beams use different power control parameters. The apparatus communicates with the second UE via a selected sidelink beam and the at least one power control parameter.

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, information indicating a capability of the UE to support a simultaneous beam update across multiple component carriers. The UE may receive, from the base station, a beam update command identifying a component carrier configured for the UE based at least in part on the capability of the UE to support the simultaneous beam update across multiple component carriers. The UE may apply the beam update command to one or more component carriers based at least in part on the component carrier identified in the beam update command. Numerous other aspects are provided.

Abstract: Techniques, systems, and devices for wireless communications are described. A user equipment (UE) may be in communication with a first and second transmitting device (e.g., by sidelink communication links). The UE may receive, from the first transmitting device, a first reference signal on a first set of resources. The UE may additionally receive, from the second transmitting device, a second reference signal on a second set of resources that overlap in the time domain with the first set of resources. In some cases, the first and second set of resources may additionally overlap in the frequency domain. The UE may determine synchronization information for time tracking or frequency tracking of sidelink communications with the first and second transmitting devices based on the first and second reference signals. The UE may communicate with the first and second transmitting devices based on the synchronization information for time tracking or frequency tracking.

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for a first user equipment (UE) establishing a sidelink connection with a second UE. The first UE may identify a frame structure for the first UE to communicate with a base station. The frame structure may include one or more downlink slots and one or more uplink slots. The base station may indicate a set of resources for the sidelink connection with the second UE. The set of resources may include at least one downlink slot of the one or more downlink slots. In accordance with the indication, the first UE may communicate with the second UE on the sidelink connection and using at least one beam and the indicated set of resources. The communication with the second UE may utilize at least the resources in the at least one downlink slot.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a channel state information (CSI) reporting configuration for a CSI report, wherein the CSI reporting configuration indicates that the CSI report is to include a layer 1 signal to interference plus noise ratio (L1-SINR). The UE may determine a number of CSI processing units (CPUs) occupied for processing of the CSI report that is to include the L1-SINR. 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 detect a collision between a beam failure recovery request (BFRQ) transmission to trigger a beam failure recovery for a secondary cell and another uplink transmission on an uplink channel; and transmit, on the uplink channel, at least one of the BFRQ transmission or the other uplink transmission based at least in part on multiplexing rule. Numerous other aspects are provided.

Abstract: Methods, systems, and devices for wireless communications are described. Sidelink UEs may be configured with a synchronization reference signal that may be used by the UEs to synchronize time and frequency resources. A first and second UE may perform a beam sweeping procedure to identify transmit and receive beams to use for communications between the UEs. A synchronization reference signal procedure may be initiated and the first UE may receive a sidelink synchronization reference signal from the second UE using the established receive beam. The UEs may align time and frequency resources for communications between the UEs and the UEs may communicate via the sidelink channel based on the time synchronization, frequency synchronization, or both, determined using the sidelink synchronization signal. In some cases, a sidelink UE may receive multiple synchronization reference signals from multiple sidelink UEs simultaneously, where each synchronization reference signal may include a UE identifier.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, during an accumulation period, a plurality of transmit power control (TPC) commands that are based at least in part on one or more sidelink communications transmitted by the UE. The UE may determine a transmit power adjustment for the UE based at least in part on the plurality of TPC commands. The UE may selectively adjust a transmit power of the UE based at least in part on the transmit power adjustment. 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 provide, to a sidelink UE, discontinuous reception (DRX) configuration information for sidelink communications with the sidelink UE, wherein the DRX configuration information indicates a channel busy ratio (CBR) configuration of the UE. The UE may receive, based at least in part on the DRX configuration information, a communication from the sidelink UE, wherein one or more parameters associated with the communication are based at least in part on the CBR configuration of the UE. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a priority rule for selecting to monitor a first beam associated with a first broadcast transmission or a second beam that differs from the first beam and is associated with a unicast transmission. The UE may use the priority rule when a scheduling conflict is identified between the first broadcast transmission and the unicast transmission. Such conflicts may include at least one of a broadcast transmission, a control resource set (CORESET) monitoring occasion of the broadcast transmission, or reference signals of the broadcast transmission at least partially overlapping with a unicast transmission, a CORESET monitoring occasion of the unicast transmission, or reference signals associated with the unicast transmission. The UE may monitor, in accordance with the priority rule, one of the first beam or the second beam based on identification of scheduling conflict.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless node may communicate, using a first antenna panel, a first reference signal (RS) based at least in part on a first RS configuration, and communicate, simultaneously with the first RS and using a second antenna panel that is different than the first antenna panel, a second RS based at least in part on a second RS configuration, wherein the second RS configuration orthogonalizes the second RS relative to the first RS. 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 identify a first set of resources for an access link communication between the first UE and a base station. The UE may identify a second set of resources for a sidelink communication between the first UE and a second UE. The UE may identify a scheduling conflict between the first set of resources for the access link communication and the second set of resources for the sidelink communication. The UE may drop at least a portion of the first set of resources for the access link communication or the second set of resources for the sidelink communication based at least in part on the identification of the scheduling conflict and a prioritization rule. Numerous other aspects are provided.

Abstract: Some aspects described herein relate to configuring user equipment (UE) for performing sidelink (SL) random access (RA) procedures, which may include assistance from a base station or other network component. One or more parameters for performing a random access procedure with a second UE over a sidelink can be received from a base station. A first random access message can be transmitted to the second UE as part of the random access procedure over the sidelink. A second random access message can be received, from the second UE, in response to transmitting the first random access message, and as part of the random access procedure over the sidelink, where at least one of transmitting the first random access message or receiving the second random access message are based on the one or more parameters.

Abstract: Apparatus, methods, and computer-readable media for facilitating beam-based sequence spaces for synchronization signals are disclosed herein. An example method for wireless communication for a first device includes selecting a subset of synchronization signal block (SSB) occasions including SSB occasions within an SSB period, and wherein the subset of SSB occasions is associated with a pairing of a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). The example method also includes transmitting an SSB using at least one SSB occasion from the subset of SSB occasions. An example method for wireless communication for a user equipment (UE) includes selecting a synchronization signal pairing associated with a pairing of a PSS and a SSS, wherein the synchronization signal pairing maps to a subset of SSB occasions including SSB occasions within an SSB period, and also includes monitoring for an SSB at each SSB occasion from the subset of SSB occasions.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a set of beam failure detection reference signals to monitor for a set of secondary cells based at least in part on at least one of a cell configuration, a set of secondary cell reference signal selection rules, or a set of primary cell reference signal selection rules; monitor the set of beam failure detection reference signals based at least in part on determining the set of beam failure detection reference signals; and detect, based at least in part on monitoring the set of beam failure detection reference signals, a beam failure for a secondary cell of the set of secondary cells. Numerous other aspects are provided.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may transmit an announcement that indicates a plurality of future resource reservations. The wireless communication device may transmit multiple sets of announcements that indicate one or more reservations and may vary the transmission frequency thereof based on proximity to the communications. The wireless communication device may transmit an announcement that indicates a future communication and a cancellation indication that indicates a cancellation of the communication. The wireless communication device may transmit a preemption indication that indicates that resources reserved for an announced future communication have been preempted for another communication. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described in which a user equipment (UE) of a group of UEs may communicate with other members of the group to provide data or other information via sidelinks. The UE may transmit a groupcast sidelink request to the base station. After receiving the sidelink request, the base station may send a sidelink grant (e.g., transmit or receive grant) in downlink control information (DCI) to the UEs in the sidelink groupcast communications group. The sidelink grant may include information for each hop such as which UEs are going to transmit or receive, the reception or transmission beams of the UEs, time and frequency resources, or the data to forward or relay. In some examples, a UE may relay information to other UEs in the sidelink groupcast communications group.

Abstract: Certain aspects of the present disclosure provide techniques for precoding for multi-panel uplink transmission. For codebook-based uplink transmission, a user equipment (UE) can determine one or more preferred or selected precoders for uplink transmission. The precoders can be from an expanded UE codebook that maps a first number of transmit layers at the UE to a second number of antenna ports at the UE, the layers and/or antenna ports associated with multiple uplink transmit panels at the UE. The UE sends an indication to a base station (BS) of the determined precoders and/or sends an uplink transmission using the determined precoders. For non-codebook based uplink transmission the UE receives first and second reference signals (RSs), from first and second ports of a BS, with first and second UE antenna panels. The UE computes precoders to use for uplink transmission based on the RSs.

Abstract: Aspects present herein relate to methods and devices for wireless communication including an apparatus, e.g., a UE and/or a base station. The apparatus may receive, from a first base station, a list of scrambling IDs associated with a plurality of neighboring base stations. The apparatus may also receive, from the first base station, at least one of an indication of at least one scrambling ID for an inter-cell interference measurement of at least one neighboring base station or an indication of one or more time and frequency resources of at least one neighboring base station for the inter-cell interference measurement. Additionally, the apparatus may measure inter-cell interference associated with the one or more time and frequency resources of at least one neighboring base station. The apparatus may also transmit, to the first base station, a report of the inter-cell interference measurement of the at least one neighboring base station.

Abstract: In some aspects of the disclosure, an apparatus for wireless communication includes a receiver and a transmitter. The transmitter is configured to transmit a first transmission during a first time slot and to transmit a second transmission during a second time slot that is after the first time slot. The first transmission includes first data and a first demodulation reference signal (DMRS) associated with the first data, and the second transmission includes second data and a second DMRS associated with the second data. One or more of the first transmission or the second transmission further includes an indication of whether a joint channel estimation operation is to be performed based on the first DMRS and the second DMRS.