Abstract: Methods, apparatuses, and computer-readable storage medium for conditional handover (CHO) are provided. An example method at a UE may include receiving, from a first base station, a CHO configuration comprising one or more CHO candidate cell configurations associated with a second base station and one or more execution conditions associated with the first base station and including one or more CHO measurements, the one or more CHO measurements comprising one or more L1 beam or cell specific measurements or one or more L3 beam specific measurements. The example method may further include detaching from a first cell associated with the first base station and synchronizing with a second cell associated with the second base station based on the one or more CHO measurements satisfying the one or more execution conditions, the second cell being one cell associated with the one or more CHO candidate cell configurations.

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE), which may be a relay device, may establish a sidelink communication link for communications between a base station and a second UE via the first UE. The first UE may receive control signaling from the base station indicating a configuration for transmitting a power headroom report for transmissions scheduled over the sidelink communication link. The first UE may determine a power headroom associated with transmissions from the first UE to the second UE, which may be based on a transmission power capability of the first UE, and the first UE may transmit a power headroom report to the base station. The base station may schedule communications with the second UE based on the received power headroom report from the first UE.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a cancellation indication associated with an uplink transmission on a shared radio frequency spectrum band, the shared radio frequency spectrum band having a listen-before-talk channel access mechanism to access the shared radio frequency spectrum band; determine, based at least in part on the reception of the cancellation indication associated with the uplink transmission on the shared radio frequency spectrum band, whether the uplink transmission is to be cancelled or transmitted at a reduced transmit power; and when the uplink transmission is to be transmitted at the reduced transmit power, transmitting the uplink transmission at the reduced transmit power. Numerous other aspects are provided.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter node may determine a set of desired transmit beams to use for transmissions during a channel occupancy time (COT), wherein each transmit beam in the set of desired transmit beams is associated with an energy detection threshold (EDT). The transmitter node may configure a sensing beam associated with a directional listen-before-talk (LBT) procedure, wherein the sensing beam is associated with an EDT that is at least as strict as a strictest EDT associated with the set of desired transmit beams. The transmitter node may transmit using the set of desired transmit beams during the COT, wherein the COT is initiated based at least in part on an indication that the directional LBT procedure succeeded using the sensing beam. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) in communication with a base station may support updating a bandwidth part (BWP) width from a default configuration. The UE may identify a first BWP, where the first BWP is a default BWP for communication with the base station. The UE may receive an indication of a second BWP from the base station that is wider than the first BWP. The indication may, in some cases, be included in a remaining minimum system information (RMSI), a master information block (MIB), or the like. The UE may select, based on the received indication and an operating band of the base station, the second BWP for communications between the UE and the base station. The UE and the base station may communicate using the second BWP.

Abstract: Aspects are provided which improve LBT by associating contention windows with transmission burst lengths and by allowing contention windows and maximum burst lengths to be adjusted based on interference activity. For downlink, a UE receives a PG for a downlink transmission from a base station indicating a CCA length based on a contention window size associated at least with a burst length for the downlink transmission. The UE performs, after receiving the pre-grant, a CCA based on the CCA length, transmits an APG to the base station when the CCA is successful, and receives the downlink transmission in response to the APG. For uplink, the base station performs a CCA based on a contention window associated at least with a burst length for an uplink transmission, transmits an uplink grant to the UE when the CCA is successful, and receives the uplink transmission in response to the uplink grant.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may receive a sidelink communication on a sidelink. The sidelink communication may include at least one of a grant, data received on a resource identified by the grant, a multi-stage grant, a multi-packet grant, or a relaying communication. The wireless communication device may transmit, on the sidelink after a time period since receiving the sidelink communication, a feedback message acknowledging receiving the sidelink communication. 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 a fixed frame period (FFP) configured for the UE in a frame based equipment mode. The FFP configured for the UE includes one or more idle periods and a channel occupancy time that is offset from an FFP configured for a base station communicating with the UE over an unlicensed channel. The UE may refrain from transmitting over the unlicensed channel during the one or more idle periods. The one or more idle periods may at least partially overlap with a time period in which the base station refrains from transmitting over the unlicensed channel. Numerous other aspects are provided.

Abstract: Methods, systems, and devices for wireless communications are described to support inclusion of layer 1 (L1) or layer 2 (L2) cell mobility information within a layer 3 (L3) handover command. A base station may transmit, to the UE, signaling indicating for the UE to perform a measurement on a first set of cells. The UE may perform the measurement on the first set of cells and may transmit, to the base station, an indication associated with the measurement on the first set of cells. In response to the indication, the base station may transmit, to the UE, an L3 handover command, where the L3 handover command may include L1 or L2 cell mobility information, such as an indication of a second set of cells that the UE is to use for L1 or L2 cell mobility after completing the L3 handover command.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment may monitor for a transmission over a set of periodically scheduled resources (e.g., semi-persistently scheduled resources)) of a downlink shared channel in an unlicensed spectrum. The user equipment may receive the transmission, where the transmission indicates a channel access configuration (e.g., a listen-before-talk configuration) for accessing the unlicensed spectrum. In some cases, the transmission may include a medium access control (MAC) control element (MAC-CE) that indicates the channel access configuration. The transmission may additionally indicate at least one uplink channel over which the user equipment may transmit a message and/or a channel occupancy time associated with a successful acquisition of the unlicensed spectrum by the base station. The user equipment may transmit a message (e.g., an acknowledgement) based on the channel access configuration.

Abstract: Methods, systems, and devices for wireless communications are described for communications between a user equipment (UE) and a base station via one or more relays. The UE and base station may establish a direct connection according to a first UE capability, and the UE may identify one or more relays that are in proximity to the UE and that may be used for relaying communications between the UE and the base station. The UE may provide a capability indication of a second UE capability to the base station that indicates transmission parameters associated with at least one relay, which the base station may use to communicate with the UE via the relay. The base station may select which UE capability to use for communications, which may result in either direct communications with the UE or a connection via the relay.

Abstract: A communication configuration is selected based on the bandwidth used by a wireless communication device during a random access procedure (e.g., on an unlicensed band). In some scenarios, the maximum transmit power that the wireless communication device can use may be significantly restricted (e.g., by a regulation). In some cases (e.g., when the wireless communication device is near a center of a cell), the wireless communication device may transmit the random access information using a default bandwidth. In other cases (e.g., when the wireless communication device is near a cell edge), the wireless communication device may transmit the random access information using a wider bandwidth (e.g., to increase the coverage of the transmission). In some aspects, the maximum bandwidth used for the random access procedure may be used to select at least one communication configuration that is used for a subsequent communication (e.g., data or control signaling).

Abstract: Aspects of the disclosure relate to transport block (TB) scaling in the physical uplink shared channel (PUSCH) and physical downlink shared channel (PDSCH) for select frequency bands, such as new radio unlicensed (NR-U) bands where the allowed power spectral density may be lower.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a source base station, configuration information for a conditional handover, where the configuration information indicates an execution condition and one or more carrier aggregation configurations associated with one or more candidate base stations, and where the execution condition is based at least in part on at least one of a beam-based measurement or a cell-based measurement and at least one of special cells or secondary cells (SCells) associated with the one or more candidate base stations. The UE may transmit, to a candidate base station of the one or more candidate base stations, a message to initiate the conditional handover based at least in part on the execution condition having been satisfied. Numerous other aspects are described.

Abstract: Adaptive energy detection (ED) threshold medium access is discussed based on deployment and traffic type. The network nodes sharing a shared communication network are configured with multiple discrete ED thresholds or a range of ED values. As a transmitting node prepares to attempt access to the shared communication spectrum, it identifies an access trigger condition within the network. Such a condition may include traffic type, deployment, or access conditions. In response to detecting an access trigger condition, the transmitting node may select an ED threshold associated with the access trigger condition. Alternatively, upon detection of the access trigger condition, the transmitting node may implement a random ED threshold from the candidate range of ED threshold values.

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 a first indication of assistance information associated with a Uu DRX configuration and an SL DRX configuration. The apparatus may also transmit a second indication of the assistance information associated with the Uu DRX configuration and the SL DRX configuration. Additionally, the apparatus may receive an indication of the Uu DRX configuration and an indication of the SL DRX configuration.

Abstract: Methods, systems, and devices for wireless communications are described. The method includes identifying that the user equipment (UE) is to use a two-step random access channel (RACH) procedure that includes a first message (e.g., uplink request message) and a second message (e.g., downlink response). The methods include sending, as a first message of the two-step RACH procedure, the uplink request message to a base station, receiving, from the base station, a physical downlink control channel comprising an indication of resources of a broadcast or multicast physical downlink shared channel on which the downlink response is to be received, and receiving the downlink response from the base station on the broadcast or multicast physical downlink shared channel. The physical downlink shared channel may be configured to provide downlink responses for one or multiple UEs.

Abstract: A network access node including a transceiver coupled to a sidelink receiver user equipment (UE) (or to a sidelink transmitter UE) is disclosed. The network access node may obtain a network access interface discontinuous reception (DRX) slot offset value (or a sidelink interface DRX slot offset value) corresponding to a shift in a network access interface DRX Active state start time (or a sidelink interface DRX Active state start time) of the receiver UE. The shift may configure an alignment of a sidelink interface DRX Active state start time (or the network access interface DRX Active state start time) with the network access interface DRX Active state start time (or the sidelink interface DRX Active state start time). The network access interface DRX (or sidelink interface DRX) slot offset value may be transmitted to the receiver UE.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify that the UE is configured to use a two-step random access channel (RACH) procedure. The two-step RACH procedure may include an uplink request message and a downlink response. The UE may transmit the uplink request message as part of the two-step RACH procedure, and the uplink request message may include a preamble portion that is one of a set of predefined sequences and a payload portion that includes a physical uplink shared channel waveform. The UE may receive the downlink response as part of the two-step RACH procedure and in response to the uplink request message.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, an indication of at least one first beam and at least one first antenna panel of the UE, to use for one or more first transmissions, and of at least one second beam and at least one second antenna panel of the UE, to use for one or more second transmissions. Accordingly, the UE may communicate the one or more first transmissions, with the base station, using the at least one first beam and the at least one first antenna panel. Additionally, the UE may communicate the one or more second transmissions, with the base station, using the at least one second beam and the at least one second antenna panel. Numerous other aspects are provided.