Abstract: This disclosure provides methods, components, devices and systems for signaling for user equipment (UE) antenna subset selection. For example, a UE may select one or more subsets of antenna ports for transmission, reception, or both, in response to receiving control information and one or more downlink reference signals from a network entity. The control information may indicate one or more subsets of network entity antenna ports for the UE to consider for uplink evaluation, downlink evaluation, or a combination thereof. The control information also may indicate one or more conditions of an uplink channel between the UE and the network entity, a calibration adjustment associated with the network entity, or both. The UE may select subsets of antenna ports for each of the indicated subsets of network entity antenna ports using the one or more conditions of the uplink channel and the calibration adjustment.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) collaboration group may include multiple UEs that may share wireless communication resources, parameters, or other suitable information to reduce latency, overhead, or power consumption, or to improve performance or throughput. In some aspects, one or more UEs in the UE collaboration group may indicate a context associated with the UE collaboration group to a network node such that the network node can support one or more collaboration scenarios associated with the UE collaboration group in various connectivity states. For example, the network node may facilitate or support sharing wireless communication resources, parameters, or other suitable information among the UEs in the UE collaboration group across connected, idle, inactive, or other connectivity states.

Abstract: Methods, systems, and devices for wireless communications are described. An energy harvesting device, such as a user equipment (UE) or a radiofrequency identification (RFID) tag, may transmit a control message indicating a capability of the energy harvesting device to use one or more energy sources for energy harvesting. The energy harvesting device may receive, in accordance with the capability indicated in the control message, control signaling indicating one or more parameters associated with the energy harvesting. The energy harvesting device may perform, during an energy harvesting measurement window, an energy harvesting procedure to produce one or more energy harvesting measurements and transmit an energy harvesting report indicating the one or more energy harvesting measurements and an efficiency metric for the energy harvesting from at least one of the one or more energy sources during the energy harvesting measurement window.

Abstract: A method for wireless communication at a reconfigurable intelligent surface (RIS) device and related apparatus are provided. In the method, the RIS device receives, from a network entity, a first pattern configuration indicative of a first set of RIS patterns. The first set of RIS patterns includes two or more RIS patterns being adapted based on transition time information for two or more transitions between the two or more RIS patterns, and the transition time information for each transition of the two or more transitions is based on a change between a first RIS pattern and a second RIS pattern and a direction of the change. The RIS device further communicates with a first user equipment (UE) based on the first set of RIS patterns.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. A user equipment (UE) may start a deactivation timer to determine whether to deactivate a cell. When the deactivation timer expires, the UE may deactivate the cell, such as a secondary cell (SCell), which may reduce power consumption by the UE. However, using a timer may result in inefficiencies. Various aspects relate generally to cell state change, such as for SCell activation or deactivation. For example, a UE may detect an occurrence of an event and change a state of a cell. In some aspects, the UE may activate a cell, deactivate a cell, transition to or from a lightly-activated state for a cell, or perform another cell state change action in connection with an event.

Abstract: This disclosure provides methods, components, devices and systems for random access channel enhancements for network energy saving operations. For example, a user equipment (UE) may receive a signal that identifies a random access response (RAR) window configuration associated with a random access channel (RACH) procedure for the UE, wherein the RAR window configuration identifies a RAR window offset and an extended RAR window duration for a RAR window corresponding to a RACH occasion. The UE may transmit, during the RACH occasion, a first RACH message to initiate the RACH procedure for the UE. The UE may monitor, during the RAR window corresponding to the RACH occasion, for a second RACH message associated with the first RACH message according to the RAR window configuration.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive signaling indicating a plurality of energy values associated with communications with a network node, wherein each energy value of the plurality of energy values is associated with a different configuration from a plurality of configurations for the communications with the network node. The UE may communicate with the network node according to a first configuration of the plurality of configurations that is associated with a first energy value of the plurality of energy values. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may transmit, to a reconfigurable intelligent surface (RIS) controller associated with an RIS, a configuration for applying an RIS pattern. The network node may receive, from a network element, a measurement report indicating received observations of pilot signals reflected by the RIS in accordance with the RIS pattern. The network node may transmit, to the RIS controller and based at least in part on the measurement report, an indication of one or more of an updated codebook or a phase drift associated with a calibration of the RIS. Numerous other aspects are described.

Abstract: Certain aspects of the present disclosure provide a method for wireless communications at a user equipment (UE). The UE may transmit signaling indicating capability information corresponding to one or more antenna arrays of the UE. The capability information may include a number of the one or more antenna arrays, a number of antennas in each antenna array, and/or a geometric shape of each antenna array. The UE may then receive an indication of a modified performance objective for beamforming. The modified performance objective is based on the capability information and is different from a standard performance objective for the beamforming.

Abstract: Disclosed are a separator and a battery including the separator. The separator includes a separator base layer and a ceramic coating disposed on a first surface of the separator base layer. The ceramic coating includes ceramic particles. One or more of a surface and an interior of the ceramic coating have micropores. A porosity of the ceramic coating ranges from 40% to 80%. In the micropores, a volume of pores with apertures greater than 0.1 microns occupies 45%-90% of a total pore volume, and a volume of pores with apertures greater than 1.0 micron occupies 40%-80% of the total pore volume. In the present disclosure, a porosity of the separator is improved, and a rate, a residual liquid volume, low-temperature discharging performance, and cycling performance of the battery are improved. In addition, separator nail penetration strength, self-discharging performance, and safety performance are not affected.

Abstract: Certain aspects of the present disclosure provide techniques for communication of multi-periodicity synchronization signaling. An example method includes obtaining signaling that includes an indication of a plurality of transmission occasions associated with synchronization signaling, wherein: the synchronization signaling includes a first set of synchronization signals and a second set of synchronization signals, and the indication of the plurality of transmission occasions indicates that the first set of synchronization signals is arranged in time with a first periodicity and indicates that the second set of synchronization signals is arranged in time with a second periodicity different from the first periodicity; obtaining at least one synchronization signal of the synchronization signaling in at least one transmission occasion of the plurality of transmission occasions; and communicating based at least in part on the at least one synchronization signal.

Abstract: Aspects relate to time schedule based parameters. For example, a wireless communication device may receive a message including a parameter set with an associated time schedule. In some aspects the message may indicate a mapping of each of a plurality of time periods of the time schedule with a corresponding subset of the parameter set. For example, a first subset of the parameter set may include one or more parameters to be used for a transmission that is to occur during a first time period of the plurality of time periods. The wireless communication device may thus transmit a transmission based on at least one parameter of the parameter set.

Abstract: A method for wireless communication by a wireless communication device includes transmitting, to a network node, a capability report indicating a group of ambient transmission modes supported by the wireless communication device and one or more ambient transmission parameters. The method also includes switching from a current ambient transmission mode, of the group of ambient transmission modes, to a second ambient transmission mode, of the group of ambient transmission modes, based on satisfying a first switching condition of a group of switching conditions associated with switching from the current ambient transmission mode to the second ambient transmission mode. The method further includes communicating with the network node according to the second ambient transmission mode in accordance with switching to the second ambient transmission mode.

Abstract: A network node may transmit an UL grant to a UE, the UL grant including a first subset of UL scheduling information among a plurality of UL scheduling information associated with a PUSCH. The UE may select a second subset of UL scheduling information of the plurality of UL scheduling information other than the first subset of UL scheduling information, and transmit the PUSCH to the network node based on the first subset of UL scheduling information and the second subset of UL scheduling information of the plurality of UL scheduling information.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to one or more other UEs, one or more sidelink reference signal block (S-RSB) bursts in a sidelink beam measurement gap (SBMG) based at least in part on one or more SBMG configurations. The UE may receive, from the one or more other UEs, one or more beam reports or beam measurement reports based at least in part on the one or more S-RSB bursts and the one or more SBMG configurations. Numerous other aspects are described.

Abstract: Method and apparatus for two-way beamforming operations for calibration. The apparatus receives a first set of reference signals from a network node using N sets of beam weights over N symbols. The apparatus estimates a complex-valued beamformed channel based on the first set of reference signals. The apparatus transmits a second set of reference signals to the network entity using the N sets of beam weights. The apparatus receives a set of feedback signals from the network entity comprising measurements of the transmitted second set of reference signals. The apparatus computes a set of calibration adjustment factors between transmit and receive parts of a set of beam weights based on the set of feedback signals and the estimated complex-valued beamformed channel. The apparatus performs a calibration adjustment operation based on the computed set of calibrated adjustment factors.

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 a set of reference signal resources, wherein the set of reference signal resources is associated with two or more subbands included in a band used for communication between the UE and the base station. The UE may receive, based at least in part on one or more resources of the set of reference signal resources, at least one reference signal over the band. The UE may derive one or more measurements, associated with one subband of the two or more subbands, based at least in part on the at least one reference signal received over the band. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device, such as a customer premises equipment (CPE), may transmit a first capability message indicating a first set of communication parameters associated with one or more mechanically-displaceable antenna panels of the wireless device. The wireless device may then communicate during a first time interval in accordance with the first set of communication parameters. Subsequently, upon identifying a change/degradation in the communication parameters, the wireless device may transmit a second capability message indicating a second set of communication parameters associated with one or more mechanically-displaceable antenna panels. The wireless device may then communicate during a second time interval in accordance with the second set of communication parameters. Thus, the wireless device may dynamically update communication parameters based on the mechanical degradation of the mechanically-displaceable antenna panels.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network entity may receive configuration information indicating a first random access channel configuration and a second random access channel configuration. The first network entity may transmit a first random access communication in accordance with the first random access channel configuration. The first network entity may transmit, based on the first random access communication being unsuccessful and based on one or more conditions being satisfied, a second random access communication in accordance with the second random access channel configuration. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. In some cases, a user equipment (UE) may measure inter-band interference between uplink communications transmitted by the UE and downlink communications received by the UE. In such cases, the inter-band interference may be based on a second frequency band associated with the uplink communications being within a threshold frequency of a first frequency band associated with the downlink communications. For example, the first frequency band may be associated with a first frequency of 3.5 gigahertz and the second frequency band may be associated with a second frequency of 7 gigahertz. As such, the UE may transmit a report indicative of the inter-band interference between uplink communications and downlink communications based on measurement of the inter-band interference. In such cases, the report may include an indication of one or more metrics associated with the inter-band interference.