Abstract: Wireless communications systems and methods related to multi-transmission-reception point (multi-TRP) precoding matrix indication (PMI) operations are provided. A user equipment (UE) receives a configuration indicating a precoder size parameter for a plurality of transmission-reception points (TRPs). The UE receives, from a first TRP of the plurality of TRPs, a first reference signal. The UE receives, from a second TRP of the plurality of TRPs, a second reference signal, the second TRP being different from first TRP. The UE transmits, to the first TRP or the second TRP, a channel state information (CSI) report including a first feedback component based on the first reference signal and a second feedback component based on the second reference signal, where a combined payload size of the first feedback component and the second feedback component is based on the precoder size parameter.

Abstract: Radio frequency (RF) sensing of a target object by a wireless network is supported by a sensing node based on a sensing-purpose beam measurement configuration and/or valid reporting configuration received from a network node. Based on the sensing-purpose beam measurement configuration, the sensing node measures sensing-purpose beams received from a transmitting entity and selects one or more of the sensing-purpose beams for sensing the target. The sensing node sends a sensing-purpose beam measurement report to a network node that identifies the selected sensing-purpose beams and may provide measured metrics, such as signal strength and absolute or relative delay of the selected beams along the target paths. The sensing node may determine whether valid reporting conditions are present based on changes in the measurement the channel state information and may report sensing measurement if valid reporting conditions exist.

Abstract: Methods, systems, and devices for wireless communication are described. A passive user equipment (UE) may transmit an indication of a baseband frequency shift type supported by the passive UE for backscatter communications. The baseband frequency shift type may include one or both of a single-side frequency shift or a double-side frequency shift. A network entity may determine a frequency domain resource allocation (FDRA) for the passive UE based on receiving the indication. The network entity may transmit an indication of the FDRA to the passive UE. The FDRA may correspond to the baseband frequency shift type supported by the passive UE. The passive UE may transmit one or more backscatter communications based on the FDRA signaled by the network entity. The one or more backscatter communication s may be frequency shifted according to the baseband frequency shift type supported by the passive UE.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration for reporting channel state information (CSI) for multiple transmit receive points (TRPs), the configuration specifying a TRP data structure that maps TRP index values to TRPs. The UE may select one or more TRPs from the multiple TRPs for a CSI report. The UE may select a TRP index value from the TRP data structure based at least in part on the one or more TRPs selected for the CSI report. The UE may transmit the TRP index value with the CSI report. Numerous other aspects are described.

Abstract: Aspects presented herein relate to methods and devices for wireless communication including an apparatus, e.g., a UE or base station. The apparatus may monitor a set of control channel resources that is associated with a set of sensing signal resources. The apparatus may also select at least one available control channel resource in the set of control channel resources and at least one available sensing signal resource in the set of sensing signal resources. Further, the apparatus may transmit a control channel message for a second wireless device and receive a sensing signal, where the control channel message is transmitted via the at least one available control channel resource and the sensing signal is received via the at least one available sensing signal resource.

Abstract: Disclosed are a flux-cored welding strip and a welding flux used in combination for submerged arc welding of a duplex stainless steel, and preparation methods and use thereof. The flux-cored welding strip is composed of a stainless steel shell and a flux core powder, the flux core powder consisting of the following components: in percentages by mass, ferrochrome nitride: 0.70% to 1.0%, a chromium powder: 26% to 27%, a nickel powder: 4.5% to 5.5%, a molybdenum powder: 3.7% to 4.2%, a manganese powder: 2.55% to 2.65%, a copper powder: 1.45% to 1.55%, a ferrosilicon powder: 1.1% to 1.2%, a tungsten powder: 1.0% to 1.15%, a niobium powder: 0.25% to 0.35%, an aluminum powder: 0.35% to 0.55%, a rhenium powder: 0.35% to 0.40%, a lanthanum powder: 0.1% to 0.15%, and a balance being an iron powder.

Abstract: A method includes receiving, by a user equipment (UE) device, a joint transmission of channel state information (CSI) reference signals (CSI-RS) from a first transmission and reception point (TRP) associated with a wireless network and at least a second TRP associated with the wireless network. The method further includes determining a joint rank parameter associated with the joint transmission and accessing, based on the joint rank parameter, a rank-to-port mapping codebook to determine a port index parameter. The method further includes, after determining the port index parameter, communicating, by the UE device, with one or more of the first TRP or the second TRP. Other aspects and features are also claimed and described.

Abstract: Disclosed are techniques for sensing processing capability report in user equipment (UE)-assisted bistatic or multistatic sensing. In an aspect, a sensing signal transmitter may send, to a sensing signal receiver, first information specifying a set of one or more sensing types. The sensing signal transmitter may receive, from the sensing signal receiver, second information specifying sensing processing capability of the sensing signal receiver. The sensing signal transmitter may determine to select or not select the sensing signal receiver to perform a sensing task, the sensing task comprising bistatic sensing or multistatic sensing, based at least in part on the sensing processing capability of the sensing signal receiver.

Abstract: Methods, systems, and devices for wireless communications are described. In some cases, a user equipment (UE) may generate a baseband payload including a set of reference signals arranged in accordance with a comb pattern. The UE may upconvert the baseband payload by repeating the payload until a radio frequency bandwidth is filled with the repetitions, and the UE may transmit the repetitions of the baseband payload over the radio frequency bandwidth. In some other cases, a UE may receive, over a radio frequency bandwidth, a signal that includes a set of reference signals arranged in accordance with a comb pattern, and the UE may downconvert the signal to a baseband payload, where the baseband payload includes, as a result of the downconverting, a subset of reference signals of the set of reference signals. The UE may obtain channel measurements for the radio frequency bandwidth using the subset of reference signals.

Abstract: A method for wireless communication by a user equipment (UE) includes receiving a message scheduling a physical uplink shared channel (PUSCH). The method also includes determining that a quantity of resources allocated for channel state information (CSI) reporting via the PUSCH is insufficient for transmitting a CSI report for a coherent joint transmission (CJT) associated with transmit and receive points (TRPs). Each TRP may be associated with a set of CSI components. The method further includes prioritizing the CSI components based on a TRP priority rule. The method still further includes omitting one or more CSI components from the prioritized CSI components. The method also includes transmitting, to one or more TRPs, the CSI report comprising remaining CSI components based on omitting the one or more CSI components.

Abstract: Methods, systems, and devices for wireless communications are described. A passive user equipment (UE) may transmit a modulated chirp spread spectrum (CSS) wave over a backscatter link to a receiving device. A source device may transmit a power-up wave signal to the UE, which may provide the UE with power to perform backscatter communications. The source device or the receiving device may provide the UE with a frequency shift assignment to use during data modulation. The UE may modulate an upchirp symbol using frequency shift keying (FSK). When multiple passive UEs are concurrently communicating with the receiving device each UE may be assigned a different baseband frequency shift. Each UE may perform modulation using on-off keying (OOK) with FSK. The receiving device may receive the backscattered modulated CSS wave and de-spread the wave. The receiving device may identify each UE by its frequency shift.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects. a user equipment (UE) may receive. from a radio frequency (RF) source node: a periodic RF source signal. The UE may transmit, to a network entity. an RF source request based at least in part on the periodic RF source signal. wherein the RF source request indicates a quantity of required energy. The UE may receive. from the RF source node. an aperiodic RF source signal, wherein the aperiodic RF source signal is based at least in part on the quantity of required energy. The UE may receive a downlink communication from, or transmit an uplink communication to. the network entity. using energy harvested at the UE from the aperiodic RF source signal. Numerous other aspects are described.

Abstract: Aspects presented herein relate to methods and devices for wireless communication including an apparatus, e.g., a UE or base station. The apparatus may detect whether a first sensing RSRP is less than a first threshold, the first sensing RSRP being associated with at least one sensing signal. The apparatus may also identify, upon detecting whether the first sensing RSRP is less than the first threshold, at least one second wireless device of a set of candidate second wireless devices, wherein the at least one second wireless device is identified based on a position of a target object. Further, the apparatus may transmit a sensing switch request message for the at least one second wireless device. The apparatus may also receive, based on the sensing switch request message, a sensing switch request ACK or a sensing switch request NACK from the at least one second wireless device.

Abstract: A network node may schedule a first set of slots for simultaneous sensing and sTRP communication with a UE. The network node may transmit a first indication scheduling the first set of slots for simultaneous sensing and sTRP communication to the UE. The network node may schedule a second set of slots for mTRP communication with the UE. The network node may transmit a second indication scheduling the second set of slots for mTRP communication to the UE. The first set of slots and the second set of slots may include at least one same slot. The network node may be associated with a first TRP and a second TRP.

Abstract: The frequency domain basis may be fed back in a CSI report from a user equipment (UE), with extra overhead and computation cost. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE configured to receive, from a base station, CSI reference signals (CSI-RS). The apparatus may be further configured to receive, from the base station, a configuration including a frequency domain basis restriction indicating a frequency domain basis subset, where the frequency domain basis subset is selected from a frequency domain basis set. The apparatus may be configured to prepare, upon receiving the frequency domain basis restriction, a CSI report based on the CSI-RS and the frequency domain basis subset. The apparatus may be further configured to transmit the CSI report to the base station.

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques relate to improved methods, systems, devices, and apparatuses that support random-access occasion (RO) selection for reduced-capability (RedCap) user equipment (UEs). A RedCap UE operating in a half-duplex mode may use the techniques described herein to efficiently select an RO in which to transmit a random-access preamble based on a duration between a latest received downlink transmission and the RO satisfying a threshold duration. The UE may receive system information mapping a set of synchronization signal blocks (SSBs) to a set of ROs. The UE may then select an RO from the set of ROs in which to transmit the random-access preamble such that the UE has sufficient time to transition from a receive mode to a transmit mode to transmit the random-access preamble.

Abstract: Technologies and techniques for wireless communication between a scheduled entity and a scheduling entity in a wireless communication network. A scheduled entity receives a downlink (DL) reference signal (RS) from the scheduling entity on a channel between the scheduling entity and the scheduled entity. The scheduled entity obtains channel state information (CSI) for the channel between the scheduling entity and the scheduled entity using the received DL RS, selects an uplink resource associated with a random-access procedure, and multiplexes a CSI report including the CSI with a random-access message related to the random-access procedure to produce multiplexed information.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network entity, configuration information indicating a set of channel state information (CSI) hypotheses associated with coherent joint transmission (CJT) CSI estimations. The UE may transmit, to the network entity, a ((CSI) report indicating one or more (CSI) reference signal (CSI-RS) resource indicators (CRIs) associated with one or more (CSI) hypotheses of the set of (CSI) hypotheses, wherein each CRI of the one or more CRIs is associated with a respective CSI hypothesis from the one or more (CSI) hypotheses. Numerous other aspects are described.

Abstract: A workpiece holder includes a chuck body and a seal ring. The chuck body includes a receiving surface configured to receive a workpiece and at least one vacuum port configured to apply a vacuum seal. The seal ring surrounds a side surface of the chuck body. A top surface of the seal ring is higher than the receiving surface of the chuck body, and the workpiece leans against the seal ring when the vacuum seal is applied between the workpiece and the chuck body.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a physical downlink control channel (PDCCH) communication scheduling a physical uplink shared channel (PUSCH) communication that is to include type-II Doppler channel state information (CSI). The UE may determine a slot offset between the PDCCH communication and the PUSCH communication based at least in part on a slot offset value to be used in association with transmitting type-II Doppler CSI. The UE may transmit the PUSCH communication based at least in part on the PDCCH communication and the slot offset. Numerous other aspects are described.