Abstract: This disclosure relates to methods, devices, and systems for wireless communications, and more particularly uplink reference signal repetition for non-terrestrial networks. A user terminal in a non-terrestrial network may identify an uplink reference signal format that includes a comb-based pattern of subcarriers within a first orthogonal frequency-division multiplexing (OFDM) symbol and within a second OFDM symbol for transmission of an uplink reference signal. The user terminal may map the uplink reference signal to a first set of subcarriers within the first OFDM symbol and to a second set of subcarriers within the second OFDM symbol in accordance with the comb-based pattern. Thereby, the user terminal may transmit, to a base station in the non-terrestrial network, the uplink reference signal on the mapped subcarriers of the OFDM symbols, which may be transmitted coherently.

Abstract: Aspects described herein relate to configuring, at a device, default beam information for determining a beam for data channel communications. The device can determine to use the default beam information for configuring the beam for a data channel communication based on determining explicit beam information is not configured. In addition, the device can transmit, based on determining to use the default beam information, the data channel communication based on the beam configured using the default beam information.

Abstract: Embodiments of the present disclosure provide a method and system for environmental monitoring based on an intelligent gas regulatory IOTs, the method comprising: determining a target enterprise user and a corresponding target monitoring point location and a target monitoring parameter based on acquired gas regulatory data; determining a government environmental sampling parameter based on government environmental monitoring information, the target monitoring point location, and the target monitoring parameter, and obtaining surrounding environmental data based on the government environmental sampling parameter; controlling an environmental monitoring device to collect target monitoring data; determining a maintenance parameter based on the target monitoring data and the surrounding environmental data; generating a maintenance instruction based on an device operating state and the maintenance parameter; and adjusting the collection frequency of obtaining the gas regulatory data based on an execution result of

Abstract: Example aspects include a method, apparatus and computer-readable medium of wireless communication at a base station of a mobile network, comprising transmitting system information corresponding to an aerial cell of the mobile network or a cell having at least one aerial sector being formed by one or more uptilt beams of the base station. The aspects further include performing, according to the system information, a random access channel (RACH) procedure with an aerial user equipment (UE). Additionally, the aspects include establishing, via the aerial cell or the at least one aerial sector, a communications link with the aerial UE.

Abstract: Disclosed is a sediment classification method and system based on bottom echo information of a deep-sea multibeam water column, falling within the technical field of seabed sediment classification. Multidimensional features of seabed multibeam time series are extracted by using multibeam water column data, and multidimensional features of seabed spots are constructed by fusing an angle response curve; double-waveform spectrum comparison of original sample point waveform with seabed measured point waveform is performed, and two groups of corresponding waveforms are matched by using Cosine Similarity to expand original sample points; and the reliability of classification results is improved. In the present disclosure, the transformation from hard to soft classification is realized, and the seabed habitat inversion of complex mixed sediment in a deep sea is further realized.

Abstract: Disclosed is a flood forecasting system driven by multi-source fusion precipitation information and real-time perception information, which comprises a flood multi-information embedding platform, the flood multi-information embedding platform is fixed in a river channel via a fixing device, the flood multi-information embedding platform is provided with a plurality of large-flow through holes and a plurality of small-flow through holes which are symmetrically distributed left and right, a large sleeve is mounted on the large-flow through hole, a small sleeve is mounted on the small-flow through hole, a rotatable rotation blade is fixedly mounted in the large sleeve, the flood multi-information embedding platform is further provided with a blind hole, and a cylinder is mounted in the blind hole.

Abstract: A computer system comprising: a data storage medium comprising a plurality of storage devices configured to store data; and a data storage controller coupled to the data storage medium; wherein the data storage controller is configured to: determine a target number of storage devices in a group of storage devices in a storage system that may exhibit variable I/O response times; detect one or more conditions associated with the group of storage devices; and after detecting the one or more conditions, change the target number of storage devices that may exhibit variable I/O response times.

Abstract: An impact-resistant polypropylene film and a method for producing the same are provided. The impact-resistant polypropylene film includes two outer layers and a middle layer. Each of the outer layers includes a propylene block polymer. The propylene block polymer includes a propylene monomer and an ethylene-propylene polymer, and the ethylene-propylene polymer is dispersed in the propylene monomer to form a sea-island structure. The sea-island structure includes a sea phase and an island phase, the propylene monomer is defined as the sea phase, and the ethylene-propylene polymer is defined as the island phase. The middle layer includes a propylene block polymer and an ethylene elastomer. Based on 100 parts by weight of the middle layer, a content of the propylene block polymer is 60 to 80 parts by weight, and a content of the ethylene elastomer is 20 to 40 parts by weight.

Abstract: An image processing method applied to a vehicle-mounted device is provided. The vehicle-mounted device obtains a first image of a front part of and a second image of a rear part of the external vehicle and obtains several spatial coordinates of several vertices of the target visual plane. The device projects each of the spatial coordinate into a first coordinate system of the first image and a second coordinate system of the second image and obtains a first projection coordinate and a second projection coordinate, generates a first transformation matrix or a second transformation matrix according to the first projection coordinate and the second projection coordinate, and obtains a first conversion image corresponding to the first image, or a second conversion image corresponding to the second image; and generates an image of a whole body of the external vehicle based on the first converted image and the second image.

Abstract: Disclosed are an IoT system, a method, and a storage medium for sampling and monitoring a smart gas pipeline. The method is executed by a government safety monitoring and management platform, and includes: obtaining pipeline sensing data; determining a sampling parameter based on the pipeline sensing data; and in response to obtaining at least one piece of sampling data from at least one sampling device, determining a fault detection command based on the sampling data, and sending the fault detection command to a gas maintenance object platform to schedule a manual inspection. The IoT system includes the government safety monitoring and management platform, a government safety monitoring sensing network platform, a government safety monitoring object platform, a gas company sensing network platform, a gas equipment object platform, and the gas maintenance object platform. The method may be executed by reading computer instructions stored in a non-transitory computer-readable storage medium.

Abstract: The present disclosure provides a ceramic three-dimensional (3D) printing device based on a gel molding process and a control method. The ceramic 3D printing device based on a gel molding process includes a feeding assembly, a receiving assembly, a scraping assembly, and a spray assembly. The feeding assembly includes a feeding pump and a storage hopper. The receiving assembly includes a feeding rod. The feeding pump can convey slurry in the storage hopper to the feeding rod. The control method includes introducing the atomized liquid into the storage hopper and the bearing groove through the first spray pipe and the second spray pipe respectively. According to the present disclosure, a water content of the slurry can be controlled to achieve a better curing effect.

Abstract: A polyolefin adhesive film includes a support base layer and a bonding adhesive layer formed on the support base layer. The support base layer is a polypropylene film. The bonding adhesive layer includes: a polyolefin copolymer and inorganic particles dispersed in the polyolefin copolymer. The polyolefin copolymer is modified by maleic anhydride, and the inorganic particles are modified by epoxy siloxane. A graft ratio of the maleic anhydride modified on the polyolefin copolymer ranges from 1% to 5%. A weight ratio of the epoxy siloxane modified on the inorganic particles ranges from 0.3% to 4%. When the polyolefin adhesive film undergoes a heating operation, the epoxy siloxane modified on the inorganic particles and the maleic anhydride modified on the polyolefin copolymer undergo a cross-linking reaction, so that a hardness of the bonding adhesive layer is increased.

Abstract: A UWB ranging performance testing method is disclosed in which a control terminal device sends a test request signal message to multiple devices to be tested. The test request signal message includes communication time slots distributed by the control terminal device to multiple devices to be tested. Communication time slots of different devices to be tested are different. All devices to be tested return the response signal message for UWB ranging performance testing in their respective corresponding communication time slots.

Abstract: The utility model discloses an electric shock prevention baffle structure of a pin assembly, a sliding groove is formed on the side walls of the main body upper cover and the main body lower cover, movable baffle grooves are respectively formed on the inward two sides of the sliding groove, a key movable groove is formed in the middle of the movable electric shock prevention baffle, and an installation yielding groove is formed on one side of the key movable groove. The utility model aims to provide a baffle structure for improving the electric shock prevention of pins.

Abstract: In a communication between a user equipment (UE) and a network node, the UE may receive a grant of uplink (UL) shared channel (SCH) resources from the network node. Each of the UL SCH resources may be associated with one of a plurality of hybrid automatic repeat request (HARQ) processes. Each HARQ process may be at least one of a plurality of HARQ process types, and each HARQ process type may be based on HARQ feedback status and HARQ retransmission status. The UE may transmit a control message on one or more UL SCH resources in response to the one or more UL SCH resources being determined to be usable based on the HARQ process type of the HARQ processes associated with the one or more of the UL SCH resources.

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a message from a first non-terrestrial network cell indicating cell synchronization information for a second non-terrestrial network cell. In some examples, the cell synchronization information may indicate whether the first non-terrestrial network cell and the second non-terrestrial network cell are synchronized at a reference point. Additionally, or alternatively, the cell synchronization information may indicate a timing offset value between a first uplink time synchronization reference point of the first non-terrestrial network cell and a second uplink time synchronization reference point of the second non-terrestrial network cell. The UE may calculate a timing associated with signaling from the second non-terrestrial network cell based at least in part on the cell synchronization information.

Abstract: Methods, systems, and devices for wireless communications are described. A system may support a delayed response to a paging message to improve paging throughput. A user equipment (UE) may receive, at a first layer of the UE and from a second layer of the UE, a first signal indicating a delay associated with a paging response for the UE. The UE may operate in a first state based on the first signal. The first state may be associated with a pending paging response and a reset of one or more operation parameters of the UE to support the delay associated with the paging response. The UE may transition, after the delay based on satisfaction of one or more paging response conditions, from the first state to a second state associated with initiation of the paging response. The UE may respond to a paging request after transitioning to the second state.

Abstract: This application discloses a communication method and apparatus. The method includes: A terminal device receives a first message from a network device, where the first message indicates the terminal device to enter an idle state or an inactive state; and enters the idle state or the inactive state. The terminal device monitors a wake-up signal from the network device after waiting for first duration, where an end time point of the first duration is later than a time point of entering the idle state or the inactive state. In this manner, communication efficiency of the terminal device after entering the idle state or the inactive state can be improved.