Abstract: Provided are a data transmission method, apparatus and computer readable storage medium. The method includes: sending, by a terminal, a random access preamble to a base station, and receiving a random access response sent by the base station; and sending, by a terminal, a first request message carrying uplink data to the base station.

Abstract: Provided are a data transmission method and device. The method includes: processing a first data packet to be sent by using a compression strategy obtained in advance from a receiving end, deleting specified duplicated data comprised in the compression strategy in the first data packet; generating a second data packet to be sent from the processed first data packet, where the second data packet includes a modification record field for indicating the deleted duplicated data; and sending the second data packet to the receiving end.

Abstract: An optical fiber laser induced breakdown spectroscopy detection device and a detection method are provided. The device comprises an optical fiber LIBS detector and a master control detection system. The master control detection system is installed in the master control room of a nuclear power plant, and the optical fiber LIBS detector is configured to perform detection in a pipeline. The master control detection system and the optical fiber LIBS detector are connected to each other via the transmission optical fiber and the control signal line. The remote on-line detection of the positioning and fixed point of the designated area of the inner wall of the main pipeline of the nuclear power plant can be detected on line in the master control room of the nuclear power plant.

Abstract: An air supply device with an annular air outlet and a design method thereof are provided. The device includes an air delivery section arranged in a horizontal plane and communicated with a plurality of air-out sections, wherein an axis of each of the plurality of air-out sections is in a vertical direction; the air delivery section and the plurality of air-out sections are respectively provided with air return ducts communicated with each other, the air return ducts each have a fresh air duct provided therein; an axis of the fresh air duct is parallel to an axis of corresponding air return duct of the air return ducts, and the fresh air duct and the corresponding air return duct are equal in length, the plurality of air-out sections are arranged above office cubicles in a room.

Abstract: Provided are a semi-persistent scheduling method and apparatus. The semi-persistent scheduling method includes receiving, through a first interface, semi-persistent scheduling configuration information sent by a base station, and sending the semi-persistent scheduling configuration information to a remote user equipment through a second interface to indicate that a semi-persistent scheduling mode is used in information transmission between the remote user equipment and the relay user equipment; and receiving, through the first interface, a semi-persistent scheduling signaling sent by the base station and sending the semi-persistent scheduling signaling to the remote user equipment through the second interface to indicate activation or release of a semi-persistent scheduling process between the remote user equipment and the relay user equipment. Semi-persistent scheduling between the remote user equipment and the relay user equipment can be implemented.

Abstract: Provided are information transmission and data demodulation methods and apparatuses, a communication node, and a network side device. The information transmission method includes: transmitting, by a first communication node, a first demodulation reference signal within a first slot, where candidate positions of the first demodulation reference signal within the first slot at least overlap with candidate positions of a second demodulation reference signal within a second slot, the second slot is a slot within which a second communication node transmits the second demodulation reference signal, and a transmission direction of the first demodulation reference signal within the first slot is different from a transmission direction of the second demodulation reference signal within the second slot.

Abstract: A three-degrees-of-freedom adjustment device driven by piezoelectric ceramics includes a Z-direction deflection mechanism at a bottom, an X-direction deflection mechanism mounted at the bottom, a Y-direction deflection mechanism mounted on the X-direction deflection mechanism, and a stage mounted on a deflect block of a deflection mechanism angle output; wherein the Z-direction deflection mechanism is located at the bottom, including a mounting substrate and two pre-compressed piezoelectric stacks; the piezoelectric stacks in the Z-direction deflection mechanism deflect in a Z direction under equal voltages; the X-direction deflection mechanism is similar to the Y-direction deflection mechanism in principle, including a deflection mechanism frame and a pair of piezoelectric stacks, wherein the X-direction deflection mechanism and the Y-direction deflection mechanism are vertically mounted, and are perpendicular to the Z-direction deflection mechanism plane as a whole.

Abstract: Disclosed are a smart control implementation method, a smart control implementation device, and a computer readable storage medium. The smart control implementation method includes: configuring pre-determined syntax information which is including sentence pattern rules, an instruction set, and semantic tags corresponding to the sentence pattern rules, wherein the semantic tags indicating semantics of a corresponding sentence pattern rule thereof (201); acquiring control information (202); identifying the control information on the basis of the pre-determined syntax information, and acquiring semantic tags corresponding to a matched sentence pattern rule of the control information (203); determining a control intention according to the semantic tags corresponding to the matched sentence pattern rule of the control information (204); and executing a control action according to the control intention (205).

Abstract: Disclosed is a method for transmitting a measurement reference signal. The method includes: acquiring port information corresponding to a measurement reference signal according to at least one of received signaling information or an agreed rule; and transmitting the measurement reference signal according to the port information. Also disclosed are a method and device for sending signaling information, a method and device for receiving signaling information, a method for transmitting an uplink reference signal, a device for transmitting a measurement reference signal, an electronic device, and a storage medium.

Abstract: Provided are a data transmitting and feedback method and apparatus, a device and a storage medium. The data transmitting method includes: selecting a grant-free resource to send a data packet, where the grant-free resource is K continuous time slots of one frequency band, where the K is an integer greater than 0.

Abstract: A mobile terminal, a control system and a control method, the mobile terminal includes a housing and a flexible screen, the flexible screen includes a fixed portion fixed on the housing and an expansion portion movable relative to the housing; the mobile terminal further includes a support structure and a movement mechanism, the movement mechanism is configured to drive the expansion portion to move so that at least a part of the expansion portion is driven to move outside the housing; and the movement mechanism is capable of driving the expansion portion to move in an opposite direction so that the expansion portion outside the housing is driven to retract into the housing; and the support structure is configured to support the expansion portion.

Abstract: The present disclosure provides a forward converter with secondary LCD connected in parallel to realize forward and backward energy transmission, comprising a forward converter main circuit and an energy transfer and transmission circuit. The forward converter main circuit includes a high-frequency transformer T, a switching tube S, a diode D1, a diode D2, an inductance L1, and a capacitor C1. The energy transfer and transmission circuit includes a diode D3, a capacitor C2 and an inductance L2.

Abstract: Provided is an image encoding method. The method includes: determining a first reference sample value of an encoding block according to a pixel sample value in the encoding block; determining an intra prediction mode of the encoding block according to the first reference sample value, and calculating an intra prediction value of the encoding block; obtaining a prediction difference parameter according to original values of the encoding block and the intra prediction value; and encoding the first reference sample value, the intra prediction mode, and the prediction difference parameter, and writing encoded bits into a bitstream. Further provided are an image decoding method, an encoder, a decoder, and a computer storage medium.

Abstract: Provided are a method and device for receiving and sending a reference signal and a storage medium, the method for receiving includes steps described below. A reference signal resource used for sending the reference signal is determined; and the reference signal sent by using the reference signal resource is received. And the method for sending includes steps described below, a reference signal resource used for sending the reference signal is determined; and the reference signal is sent by using the determined reference signal resource.

Abstract: A compound having the following formula (I): is disclosed. The methods of preparing the compound of formula (I) are also disclosed.

Abstract: The present disclosure relates to a method, a device and a system for transmitting multicast group information. The method includes: receiving, by a first CSE, multicast group information transmitted by an underlying network element, wherein the first CSE includes a CSE where a group is located; and setting, by the first CSE, attributes of multicast group resource according to the multicast group information.

Abstract: a chaotic shape-forming and corresponding matched filter-based wireless communication method is provided, and the method includes that: 1) data to be transmitted is prepared; 2) chaotic shape-forming filter is performed on a digital symbol to be transmitted to generate a baseband signal; 3) the baseband signal is transmitted and transferred by use of a radio frequency component and transmitting antenna of a conventional wireless communication system; 4) a wireless signal is received by use of a conventional receiving antenna, and down-carrier process is performed on the received signal to obtain a received baseband signal; 5) matched filter is performed on the received baseband signal; 6) wireless channel estimation and multipath interference cancellation judgment threshold calculation are performed; and 7) sampling judgment is performed on an output signal of matched filter, symbol sampling is performed on the output signal of the matched filter in Step 5), and the sampled signal is judged by use of a judgme

Abstract: Provided are a scheduling subband allocation method and apparatus, and a device and a readable storage medium. The method includes: receiving downlink control information (DCI) sent by a base station, and determining scheduling subbands in a physical uplink shared channel (PUSCH); and establishing a correspondence between precoding indications in the DCI and the scheduling subbands in the PUSCH according to at least one parameter of the total number of the scheduling subbands in the PUSCH or the total frequency domain distance of the scheduling subbands in the PUSCH and according to the total number of the precoding indications in the DCI.

Abstract: Embodiments of the present disclosure disclose an uplink data transmission method and apparatus and a storage medium. The method comprises: a terminal sending uplink data using an unlicensed resource; if the sending of the uplink data using the unlicensed resource fails, sending the uplink data using a licensed resource; the terminal sending a preamble sequence using an unlicensed resource; sending uplink data in a transmission time interval corresponding to a sending moment of the preamble sequence; and if a random access response carrying uplink authorization information is received within a preset period of time, resending the uplink data using a licensed resource indicated by the uplink authorization information.

Abstract: Provided are a method and apparatus for processing a video bitstream, a network device and a readable storage medium. The method includes: parsing a bitstream to be extracted, and acquiring parameter information about an extractable sub-bitstream from a data unit of the bitstream to be extracted; determining a picture type parameter value of a random access picture in the sub-bitstream according to the parameter information; and configuring, in a process of extracting the sub-bitstream from the bitstream to be extracted, a picture type parameter value in a data unit of the sub-bitstream according to the picture type parameter value of the random access picture.