Abstract: An object handling method is provided, which is applied to an object picking device. The object picking device includes a base and a picking and placing mechanism. The picking and placing mechanism is extendable or retractable relative to the base. The picking and placing mechanism is configured to exert a force on a target object to carry the target object when picking up or returning the target object. The object handling method includes extending the picking and placing mechanism outward from the base at a first speed, acquiring a first extension distance of the picking and placing mechanism in a case that the first speed is greater than a preset speed threshold, and extending the picking and placing mechanism outward from the base at a second speed in a case that the first extension distance is greater than or equal to a first preset distance.

Abstract: Wireless audio systems and methods for wirelessly communicating audio information are provided. The wireless audio system includes a first wireless transceiver and a second wireless transceiver. The first wireless transceiver includes a first communication module, a first codec, and a second communication module. The first communication module is configured to receive, from an audio source, first audio information. The first codec includes a first decoder configured to obtain second audio information by decoding the first audio information, and a first encoder configured to obtain third audio information by encoding the second audio information. The second communication module is configured to send the third audio information out. The second wireless transceiver includes a third communication module configured to receive the third audio information from the first wireless transceiver.

Abstract: A symbol processing method and apparatus are provided. The method includes: obtaining, based on a plurality of complex-valued symbols, a first set corresponding to a first transmit symbol and a second set corresponding to a second transmit symbol; performing a copy operation on the first set and the second set, so that both the first set and the second set have a first complex-valued symbol; performing signal processing on the first set and the second set; and performing phase adjustment on the first transmit symbol and/or the second transmit symbol after the signal processing, to ensure that a symbol component whose end position is the first reference point in the first transmit symbol is the same as a symbol component whose end position is the second reference point in the second transmit symbol. This application can ensure that an inter-symbol guard period is flexibly configured.

Abstract: Disclosed is a Z-shaped layout fixed-length double-rope grouped closed force system capturing and recycling net system. The system includes a capturing and intercepting assembly which includes a rope group a, a rope group b, a rope group c, and a rope group d that are each wound with two movable wheel groups oppositely arranged, the rope group a between the two movable wheel groups is an intercepting section a, the rope group b between the two movable wheel groups is an intercepting section b, the rope group c between the two movable wheel groups is an intercepting section c, and the rope group d between the two movable wheel groups is an intercepting section d. The disclosure can effectively decrease the lengths of the rope group a1, the rope group b2, the rope group c3 and the rope group d4 and the force and work of traction devices.

Abstract: This application provides a signal transmission method and an apparatus. In an example method, a transmit end performs linear frequency modulation on Z data signals within frequency domain resources corresponding to K subcarriers, to obtain a first signal. A frequency occupied by the first signal is within a frequency range of the frequency domain resources corresponding to the K subcarriers. A frequency occupied by each of data signals obtained through linear frequency modulation changes linearly with time.

Abstract: This application provides a symbol processing method and apparatus. The method includes: A transmitting end generates a first transmit symbol and a second transmit symbol. A length of a cyclic prefix of the first transmit symbol is greater than a length of a cyclic prefix that corresponds to a subcarrier spacing of the first transmit symbol. The transmitting end sends the first transmit symbol and the second transmit symbol. The first transmit symbol and the second transmit symbol are consecutive in time domain. The first transmit symbol is located after the second transmit symbol. The first transmit symbol is a symbol that carries a reference signal, and the second transmit symbol is a symbol that carries a data signal.

Abstract: A needle aid device comprises an outer shell; an inner shell located in the outer shell and comprising an upper portion and a lower portion, a trigger shell passage penetrating through the upper portion and the lower portion being formed in the inner shell, and an inner diameter of the lower portion being greater than that of the upper portion; and a trigger module capable of moving in the trigger shell passage and used for clamping or releasing an emitter mechanism; wherein, in an initial state, the trigger module is locked on the upper portion; and when unlocked, the trigger module drives the emitter mechanism to move downward until the emitter mechanism is separated from the trigger module.

Abstract: Techniques of correcting wavefronts from prescription lenses for image calibration in a smartglasses assembly includes correcting wavefront error at a calibration camera by performing a phase modulation of optical wave-fronts emanating from the back surface of a prescription lens in a smartglasses assembly prior to the optical wavefronts being detected by the calibration camera. For example, when collimated light from, e.g., a waveguide disposed within a rim portion of a smartglasses frame, is incident on a prescription lens, that lens induces a wavefront aberration that would be corrected in the prescribed user's eye. In an image calibration, however, there is no such correcting eye so a correction mechanism that corrects the wavefront aberration should be placed in an eye plane related to a location of an eye of the user when the user wears the smartglasses assembly.

Abstract: A carbon dioxide sequestration method based on reservoir wettability optimization design and layered regulation, which proposes the following four schemes for a carbon dioxide sequestration process: a carbon dioxide sequestration process seepage characteristics simulation scheme, a reservoir wettability optimization design scheme, a reservoir wettability regulation scheme and a carbon dioxide sequestration well layout design scheme.

Abstract: Embodiments of this application provide a signal transmission method and a communication apparatus in a multi-waveform scenario, and are applied to a scenario in which a single-carrier waveform and a multi-carrier waveform coexist. In this method, a network device indicates, via first indication information, a terminal device to transmit a signal by using transmission parameters corresponding to the first indication information, so that the terminal device transmits the signal by using the specified transmission parameters. Transmission parameters includes at least two of a transmission bandwidth, an extended bandwidth, or a total bandwidth. According to the embodiments of this application, a transmit end may perform sending by using the single-carrier waveform, and a receive end may perform receiving by using the multi-carrier waveform; or a transmit end may perform sending by using the multi-carrier waveform, and a receive end may perform receiving by using the single-carrier waveform.

Abstract: A signal transmission method and an apparatus. A terminal obtains first information, and sends a signal corresponding to a first pilot pattern or a second pilot pattern. The first information is usable to indicate the terminal to use the first pilot pattern or the second pilot pattern. The first pilot pattern is usable to that a first reference signal is located at a first time domain position, and a second reference signal is located at a second time domain position. The second pilot pattern is usable to indicate that a third reference signal is located at the first time domain position, and a fourth reference signal is located at a third time domain position.

Abstract: Embodiments of this application disclose a communication method and a related apparatus. The method includes: A communication apparatus determines a first signal, where the first signal includes a reference signal block, and the reference signal block includes a first reference signal and a second reference signal. The second reference signal is used to make a received value of the first reference signal at a receiving end be a preset received value. The communication apparatus sends the first reference signal at a first moment, and sends the second reference signal at a second moment. An interval between the first moment and the second moment is equal to a time interval of X transmitted signals, and the time interval of the transmitted signals is Ts/n. X is a positive integer, Ts is a symbol periodicity, and n is a quantity of signals transmitted in the symbol periodicity.

Abstract: Provided are methods and systems for lane change and intent determination. A method for operating an autonomous vehicle is provided. The method includes obtaining, first scene data associated with a scene of an autonomous vehicle. The method includes generating a plurality of trajectories for the autonomous vehicle. The method includes selecting a trajectory from the plurality of trajectories. The method includes determining a vehicle action intent of the selected trajectory. The method includes combining the vehicle action intent of the selected trajectory with a set of vehicle action intents to form a plurality of vehicle action intents. The set of vehicle action intents correspond to a set of trajectories generated prior to the selected trajectory from second scene data. The method includes selecting a vehicle action for the autonomous vehicle and causing the autonomous vehicle to initiate performance of the vehicle action based on the selecting the action.

Abstract: A communication method and apparatus. A plurality of signals included in a first sequence to M subcarrier blocks used to transmit a reference signal are mapped, where an mth subcarrier block includes Qm subcarriers, and a plurality of signals mapped to a plurality of consecutive subcarriers at a rear location in the mth subcarrier block are the same as a plurality of signals mapped to a plurality of consecutive subcarriers at a front location in a (mod(m, M)+1)th subcarrier block. Signals transmitted on a plurality of reference signal subcarrier blocks are jointly designed, and a cyclic redundancy characteristic is formed in the plurality of reference signal (for example, PTRS) subcarrier blocks.

Abstract: A method includes a transmitting end sending a first signal that includes a data signal and a reference signal. A first imaginary reference signal in the reference signal is located at a real signal location of the first signal, and/or a first real reference signal in the reference signal is located at an imaginary signal location of the first signal; and the reference signal is used for phase noise estimation.

Abstract: A multi-user communication method includes obtaining first information indicating channel information of a first channel on a first frequency domain resource and second information indicating channel information of a second channel on the first frequency domain resource. The method also includes determining phase precoding information based on the first information and the second information. The first channel and the second channel overlap with each other on the first frequency domain resource. Phases of signals transmitted on symmetric subcarriers of the first channel are opposite. Phases of signals transmitted on symmetric subcarriers of the second channel are opposite. After precoding is performed based on the phase precoding information, channel correlation between an equivalent channel of the second channel and an equivalent channel of the first channel is less than channel correlation between the second channel and the first channel.

Abstract: Embodiments of this application provide a communication method and apparatus. In the method, the first communication apparatus may receive a first message, where the first message includes information about an expansion factor. The first communication apparatus determines a quantity of information bits based on the expansion factor, generates a to-be-sent signal based on the quantity of information bits; and transmits the to-be-sent signal. During communication, the communication apparatus uses the expansion factor in transmission, so that the quantity of information bits transmitted in a filter can be increased, to ensure high spectrum utilization and high data transmission efficiency.

Abstract: Aspects of the present application provide methods and devices for a phase tracking reference (PT-RS) scheme for use by a single carrier Offset QAM (SC-OQAM) transmitter and receiver to estimate, and correct, phase errors that occur over the communication link between the SC-OQAM transmitter and receiver. A transmitter may set the sign (positive or negative) of PT-RS symbols dynamically allowing the transmitter to better utilize IQ interference caused by data symbols and other PT-RS symbols. Another aspect of the present disclosure provides a receiver that can estimate phase error due to phase noise without knowing the sign of PT-RS symbol or the sign of IQ interference. This type of phase error estimation improves the phase noise estimation performance, and thus may improve the overall block error rate (BLER) performance at the receiver.

Abstract: A modified para-aramid polymer solution, a coating slurry, a battery separator and preparation methods thereof provided, which belong to the field of lithium battery material. A modified para-aramid polymer solution is prepared, which can be directly used for preparing a coating slurry and for coating a lithium battery separator. The problem that the traditional para-aramid is difficult to dissolve in polar solvents to prepare a coated film is effectively solved; and in the prepared lithium battery separator, ceramic particles are wrapped in the three-dimensional network structure of the modified para-aramid, so that the shortage of powder falling of ceramic particles is effectively improved, and the thermal performance and safe use performance of the lithium battery separator are improved. The present method has obvious advantages of high production efficiency, good product performance, low production cost and the like over the prior art.

Abstract: Embodiments of this application disclose a phase noise determining method and a related apparatus. The method includes: A first communication apparatus obtains a first signal, where the first signal includes a data signal and K phase-tracking reference signals PTRSs, where a value of an mth PTRS in the K PTRSs is determined based on a value of first interference, a value of second interference, and a preset receiving value of the mth PTRS, the first interference is inter-symbol interference generated by the data signal on the mth PTRS, the second interference is inter-symbol interference generated by a PTRS other than the mth PTRS in the K PTRSs on the mth PTRS, K and m are positive integers, and 1?m?K.