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, a downlink visible light communication (VLC) transmission. The UE may receive, from the base station, a downlink New Radio (NR) radio frequency (RF)-based communication (RFC) transmission, wherein a frame structure associated with the downlink VLC transmission is asynchronous with a frame structure associated with the downlink NR RFC transmission. The UE may transmit, to the base station via an uplink RF transmission based at least in part on a lack of support for an uplink VLC transmission at the UE, acknowledgement or negative acknowledgement (ACK/NACK) feedback associated with one or more of the downlink VLC transmission or the downlink NR RFC transmission. Numerous other aspects are described.

Abstract: A method of wireless communication, by a user equipment (UE), includes receiving, from a network device, a trigger command initiating a hash-based random access procedure. The trigger command includes a target hash value and one or more rules for selecting preambles. The method also includes selecting, based on the trigger command, one or more random access channel (RACH) occasions (RO) for potential preamble transmission. The method further includes calculating at least one hash value in response to the trigger command based on computational resources of the UE. The method also includes transmitting a preamble on the at least one selected RO based on the at least one hash value and the target hash value.

Abstract: A component embedded circuit board includes a printed circuit board, a dielectric layer, and an antenna structure laminated in that order. The printed circuit board includes a first opening and a first circuit layer, and the first circuit layer includes at least one first connecting pad. A second opening is defined in the dielectric layer. A conductive structure is embedded in the dielectric layer. The second opening penetrates the dielectric layer. The antenna structure includes a first ground layer. A component is embedded in the first opening. One end of the conductive structure is connected to the first ground layer, and the other end of the conductive structure is connected to the first connecting pad. The second opening corresponds to the first opening. A gap is generated by the second opening and the component. A method for manufacturing the package circuit structure is also disclosed.

Abstract: A circuit board with improved heat dissipation function and a method for manufacturing the circuit board are provided. The circuit board includes a heat dissipation substrate, an insulating layer on the heat dissipation substrate, an electronic component, a base layer on the insulating layer, and a circuit layer on the base layer. The heat dissipation substrate includes a phase change structure and a heat conductive layer wrapping the phase change structure. The heat dissipation substrate defines a first through hole. The insulating layer defines a groove for receiving the electronic component. A second through hole is defined in the circuit layer, the base layer, and the insulating layer. A bottom of the second through hole corresponds to the heat conductive layer. A heat conductive portion is disposed in the second through hole.

Abstract: A semiconductor device includes a substrate; at least one trench located at a top surface of the substrate; and a first dielectric layer, a second dielectric layer and a third dielectric layer that are sequentially stacked on an inner wall of each of the at least one trench. A topmost surface of the first dielectric layer is lower than a topmost surface of the second dielectric layer and the top surface of the substrate, to form a first groove between the second dielectric layer and the substrate. An edge corner between the top surface of the substrate and the inner wall of each of the at least one trench is in a shape of a fillet curve. The fillet structure is smooth and round without a sharp corner, reducing point discharge and improving reliability of the shallow trench isolation structure.

Abstract: The disclosure belongs to the field of underground energy storage, and particularly provides a large-deformation underground energy storage device, including a body. The body includes a rubber sealing layer, a negative Poisson's ratio material layer, a large deformation concrete layer and rock layers sequentially nested from inside to outside; an internal storage space is formed in the rubber sealing layer, the negative Poisson's ratio material layer includes a plurality of negative Poisson's ratio material elements connected in sequence, and the large deformation concrete layer is cast from deformable concrete.

Abstract: A method includes depositing a first metal layer on a package component, wherein the package component comprises a first device die, forming a dielectric layer on the package component, and plating a metal thermal interface material on the first metal layer. The dielectric layer includes portions on opposing sides of the metal thermal interface material. A heat sink is bonded on the metal thermal interface material. The heat sink includes a second metal layer physically joined to the metal thermal interface material.

Abstract: Methods, systems, and devices for wireless communications are described. A network entity (e.g., a base station or reader) may transmit an initial access trigger message (e.g., modulating a continuous wave transmission using amplitude shift keying (ASK)), and the trigger message may include an indication of a type of passive user equipment (PUE) or a PUE use case (e.g., high priority/latency-critical PUEs or low priority/latency non-critical PUEs). A receiving PUE may harvest energy from the initial access trigger message for transmitting an initial access response message including an identifier for the receiving PUE. The receiving PUE may transmit the initial access response message (e.g., on one or more initial access resources) using the harvested energy if the trigger message indicates the PUE's type of PUE or PUE use case. In some examples, the receiving PUE may ignore triggers for different types of PUEs or PUE use cases.

Abstract: Techniques for beam-based relay node switch. An example method of wireless communication by a first wireless node generally includes relaying wireless communications between a user equipment (UE) (120, 120a-y) and a network entity; transmitting, to one or more second wireless nodes, relay request signals via a plurality of beams (402a-d, 602a-d, 604a-b, 706a-b) at relay request signal occasions (1, 2, 3), wherein each of the relay request signals indicates a request to switch relay services of the UE (120, 120a-y) from the first wireless node to the one or more second wireless nodes; and switching the relay services of the UE (120, 120a-y) to at least one of the one or more second wireless nodes.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station (BS) may identify a collision between a data transmission and a demodulation reference signal (DMRS) transmission in a full-duplex time-frequency resource. The BS may transmit, to a wireless communication device, an indication of a time-frequency mapping for a zero-power DMRS (ZP-DMRS) in the full-duplex time-frequency resource. The time-frequency mapping for the ZP-DMRS, and a time-frequency mapping in the full-duplex time-frequency resource for the DMRS transmission, may be a same time-frequency mapping. Numerous other aspects are provided.

Abstract: Aspects of the disclosure relate to a method of, and apparatus for, wireless communication by a user equipment (UE). The method includes receiving a set of reference signals and transmitting, based at least in part on the set of reference signals: a set of Doppler frequency values and a set of weight values that correspond to the set of Doppler frequency values. In another example, a method of, and apparatus for, wireless communication by a base station (BS) is disclosed. The method includes transmitting, to the UE, a signal that has been precoded based at least in part on the set of Doppler frequency values, and the corresponding set of weight values. Other aspects, embodiments, and features are also claimed and described.

Abstract: A package structure including a first substrate and a second substrate is provided. The first substrate includes first bumps with first lateral dimension and second bumps with second lateral dimension. The first bumps are distributed in a first region of the first substrate, and the second bumps are distributed in the second region of the first substrate, wherein the first lateral dimension is greater than the second lateral dimension, and a first bump height of the first bumps is smaller than a second bump height of the second bumps. The second substrate includes conductive terminals electrically connected to the first bumps and the second bumps.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may perform channel state information (CSI) measurements on one or more reference signal transmissions from a base station; determine, based at least in part on the CSI measurements, a set of non-zero linear combination complex coefficients for weighting and co-phasing for a linear combination of a plurality of frequency domain basis vectors and a plurality of spatial domain basis vectors; and transmit a CSI feedback, wherein a first part of the CSI feedback includes at least an indication of a number of the set of non-zero linear combination complex coefficients with regard to all layers of a communication link between the UE and the base station. Numerous other aspects are provided.

Abstract: Disclosed are techniques for radio frequency (RF) sensing by a base station operating in a time division duplex (TDD) mode and having a first antenna panel and a second antenna panel. The base station performs RF sensing and DL communication in a first sensing and DL communication mode in which the first antenna panel transmits DL symbols and the second antenna panel receives, as RF sensing signals, reflections of the DL symbols transmitted by the first antenna panel. The base station also performs RF sensing and DL communication in a second sensing and DL communication mode in which the second antenna panel transmits DL symbols and the first antenna panel receives, as RF sensing signals, reflections of the DL symbols transmitted by the second antenna panel. In some aspects, a characteristic of the channel is determined based on transmissions in both the first and second sensing and DL communications modes.

Abstract: Methods, systems, and devices for wireless communications are described. A frame, scheduling instances, scheduling period etc. may include a set of downlink subframes and a set of uplink subframes. At least one control message transmitted in a downlink subframe may schedule a set of data messages in the downlink subframes of the frame. The downlink subframe may also include data messages scheduled by a control message of a previous frame. Further, feedback timings for data messages of the frame may be determined based on the corresponding control messages (e.g., from the current frame and the previous frame). Feedback responses corresponding to the data messages may be transmitted in a bundled manner in the set of uplink subframes. Using this cross-frame scheduling technique, the resources of a frame may be efficiently utilized.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive quasi co-location (QCL) information associated with an energy harvesting beam. The UE may perform energy harvesting, using the energy harvesting beam, based at least in part on the QCL information. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. Feedback based codebooks for reducing or eliminating interference between orbital angular momentum (OAM) based backhaul communications between a first network node and a second network node and access communications between the first network node and a user equipment (UE) are described. The first network node may transmit a message to a UE indicating a feedback codebook for a set of reference signals associated with OAM modes. The first network node may transmit the reference signals, where each reference signals may be associated with a respective OAM mode. The UE may generate and indicate in a feedback report to the first network node codewords corresponding to UE feedback for the received reference signals. The first network node may communicate with the UE via an access link and with the second network node via a backhaul link based on the feedback report.

Abstract: In an aspect, a user equipment (UE) may receive indications of positioning resources of a positioning resource pool, wherein the positioning resource pool includes a first positioning resource window having a first set of one or more contiguous positioning resources, a second positioning resource window having a second set of one or more contiguous positioning resources, and a third positioning resource window having a third set of one or more contiguous positioning resources extending between an end of the first positioning resource window and a start of the second positioning resource window. The UE may transmit a first positioning reference signal (PRS) on a first positioning resource reserved from the first positioning resource window. The UE may transmit a second PRS on a second positioning resource reserved from the second positioning resource window.

Abstract: Methods for generating automations via natural language processing are performed by computing systems. Natural language input is received from a user interface, and an automation workflow is generated based on the natural language input. The automation workflow includes steps to build an automation. One or more of the steps is provided to the user interface, and a first field and a second field that each correspond to the one or more steps are populated in the user interface. The first field is populated with a parameter value based on the natural language input, and the second field is populated based on the parameter value. The automation is then enabled to be built and deployed.

Abstract: A memory device including a base semiconductor die, conductive terminals, memory dies, an insulating encapsulation and a buffer cap is provided. The conductive terminals are disposed on a first surface of the base semiconductor die. The memory dies are stacked over a second surface of the base semiconductor die, and the second surface of the base semiconductor die is opposite to the first surface of the base semiconductor die. The insulating encapsulation is disposed on the second surface of the base semiconductor die and laterally encapsulates the memory dies. The buffer cap covers the first surface of the base semiconductor die, sidewalls of the base semiconductor die and sidewalls of the insulating encapsulation. A package structure including the above-mentioned memory device is also provided.