Abstract: A freeform surface off-axial three-mirror imaging system comprising a primary mirror, a secondary mirror, a tertiary mirror, and a detector. The secondary mirror comprises a first freeform surface and a second freeform surface. Each reflective surface of the primary mirror, the first freeform surface, the second freeform surface and the tertiary mirror is an xy polynomial freeform surface. The freeform surface off-axial three-mirror imaging system comprises a first effective focal length and a second effective focal length different from the first effective focal length.

Abstract: The disclosure discloses a high-efficiency short training field sequence generation method, a signal sending method, a signal receiving method, and related apparatuses, where the high-efficiency short training sequence generation method includes: increasing frequency domain density of a frequency domain sequence corresponding to a first high-efficiency short training field sequence to generate a frequency domain sequence with increased frequency domain density; generating a second high-efficiency short training field sequence according to the frequency domain sequence with increased frequency domain density; and using the second high-efficiency short training field sequence as a high-efficiency short training field sequence in a preamble sequence of a data transmission frame in a wireless local area network WLAN.

Abstract: This application provides a method for radio link monitoring on an unlicensed spectrum and a communications apparatus. The method includes: A terminal device determines one or more channel occupancy times COTs. The terminal device detects one or more downlink reference signals within the one or more COTs. The terminal device determines, based on the downlink reference signal detected within the one or more COTs, whether a channel needs to be reconnected. According to the method for radio link monitoring on an unlicensed spectrum that is provided in this application, accuracy of radio link monitoring performed on an unlicensed spectrum can be ensured, precision of a result of the radio link monitoring can be improved, and a more accurate result of the radio link monitoring can be obtained, thereby improving communication efficiency and communication quality.

Abstract: An intelligent electric-vehicle charging station is provided. The charging station includes at least one charger. Each charger includes at least one power conversion unit and at least one charging terminal. Each power conversion unit includes an alternating-current power distribution module, a plurality of rectification modules, a switch matrix and a power controller. The alternating-current power distribution module supplies power to each power conversion unit and the at least one charging terminal. The rectification modules are divided into a plurality of groups of modules. The plurality of groups of modules is controlled, through the switch matrix, to be connected to a plurality of direct-current output circuits. Each direct-current output circuit is connected to one charging terminal. The switch matrix switches each group of modules in the plurality of direct-current output circuits according to a control instruction of the power controller.

Abstract: Embodiments provide a method for direct communication between stations in a wireless local area network and a related station. The method for direct communication between stations in a wireless local area network includes: sending, by a first station, a data frame to a second station, where the data frame includes a first high-efficiency signal field, and the first high-efficiency signal field includes first indication information used to indicate that the data frame is a single-user (SU) data frame and second indication information used to indicate that the data frame is a downlink (DL) data frame.

Abstract: Disclosed is a real-time dynamic and quantitative detection device for carbon dioxide in human exhaled air, which comprises: a face mask which comprises an air inlet and an air outlet; an inhalation channel connected with the air inlet of the face mask, a first one-way valve is provided in the inhalation channel; an exhalation channel connected with the air outlet of the face mask, a second one-way valve is provided in the exhalation channel; an air path switching element connected with the exhalation channel to realize the switching between an exhalation air path to be detected and an inflation air path; a detection air chamber connected with the exhalation channel, at least one carbon dioxide sensor connected with an external upper computer is provided in the detection air chamber; before detection, the air path switching element switches to the inflation air path to clean and initialize the detection air chamber; during detection, the air path switching element switches to the exhalation air path to be det

Abstract: This application provides a control resource configuration method, which includes: pre-configuring, by a network device, a plurality of control resource sets on a plurality of sub-bands, where the plurality of control resource sets have different priorities; separately performing, by the network device, channel sensing on the plurality of sub-bands, to determine one or more available sub-bands in the plurality of sub-bands; determining, by the network device, one or more to-be-scheduled control resource sets from the plurality of control resource sets based on a priority of each of the plurality of control resource sets; and sending the one or more to-be-scheduled control resource sets on the one or more available sub-bands and within corresponding channel occupancy time, where the control resource set carries downlink control information for a terminal device. A success rate of sending the CORESET is improved without increasing resources required by the CORESET.

Abstract: A multi-subframe scheduling method, a device and a terminal are disclosed. The multi-subframe scheduling method includes: receiving configuration information sent by a base station for instructing a terminal to perform multi-subframe scheduling; detecting whether a multi-subframe scheduling instruction sent by the base station is received; when the multi-subframe scheduling signaling is received, sending or receiving data on a plurality of corresponding subframes according to the multi-subframe scheduling signaling and the configuration information. By the technical solution of the present disclosure, data transmission on a plurality of subframes can be scheduled on one subframe, and the multi-subframe scheduling mechanism can be reasonably applied.

Abstract: Aspects of the disclosure relate to a method of operating a scheduled entity for wireless communication. In some aspects, the scheduled entity detects a fluctuation in a beam strength of at least one transmit beam from a scheduling entity. The scheduled entity transmits a first message to the scheduling entity, the first message indicating at least the fluctuation in the beam strength of the at least one transmit beam from the scheduling entity.

Abstract: A freeform surface off-axial three-mirror imaging system is provided. The freeform surface off-axial three-mirror imaging system comprises a primary mirror, a secondary mirror, and a compensating mirror. The primary mirror, the secondary mirror, and the compensating mirror are located adjacent and spaced away from each other. A surface shape of each of the primary mirror and the secondary mirror is a quadric surface. The primary mirror is used as an aperture stop. A surface shape of the compensating mirror is a freeform surface. A light emitted from a light source is reflected by the primary mirror, the secondary mirror, and the compensating mirror to form an image on an image plane.

Abstract: A freeform surface optical telescope imaging system is provided. The freeform surface optical telescope imaging system comprises a primary mirror, a secondary mirror, a compensating minor, and a spherical mirror. The primary minor, the secondary minor, the compensating minor, and the spherical mirror are spaced from each other. A surface shape of each of the primary mirror and the secondary mirror is a quadric surface. The primary mirror is used as an aperture stop. A surface shape of the compensating mirror is a freeform surface. A surface shape of the spherical mirror is a spherical surface. A light emitted from a light source would be reflected by the primary mirror, the secondary minor, the compensating mirror, and the spherical mirror to form an image on an image plane.

Abstract: Embodiments of this application provide a method for transmitting indication information. The method includes: A first device generates first indication information, where the first indication information includes information about a format of a channel occupancy time of the first device, the channel occupancy time of the first device includes one or more sub-periods, the one or more sub-periods are used for uplink transmission, downlink transmission, flexible transmission, or transmission interruption, and a sub-period for transmission interruption can be used for transmission by another device other than the first device; and the first device sends the first indication information. In an indication manner described in the embodiments of this application, a device may obtain a format in a COT in advance, thereby reducing blind detection overheads, or may sleep in advance, to reducing energy consumption.

Abstract: A system and a method are disclosed for error correction during operations of a memory system. For example, during a read operation, the error correction includes a read retry determination to account for link errors that are detectable by cyclic redundancy check (CRC) but not correctable by error correction coding (ECC). Reducing the number of read retry operations performed may improve system performance by reducing the number of clock cycles spent on retry operations that could have otherwise been allocated for other system services (e.g., completing read and write operations). Additional CRC calculations and checks may be used to determine when to perform a retry in addition to existing CRC and ECC checks, reducing the number of potential retry operations and improving system performance.

Abstract: The present invention relates to non-naturally occurring polypeptides useful for preparing armodafinil, polynucleotides encoding the polypeptides, and methods of using the polypeptides. The non-naturally occurring polypeptides of the present invention are effective in carrying out biocatalytic conversion of the (i) 2-(benzhydrylsulfinyl)acetamide to (?)-2-[(R)-(diphenylmethyl)sulfinyl]acetamide (armodafinil), or (ii) benzhydryl-thioacetic acid to (R)-2-(benzhydrylsulfinyl)acetic acid, which is a pivotal intermediate in the synthesis of armodafinil, in enantiomeric excess.

Abstract: The present invention relates to an azetidine derivative for use as a Janus kinase (JAK) inhibitor, a drug composition comprising same, a preparation method therefor, and a use thereof in the treatment of JAK-related diseases comprising, for example, inflammatory diseases, autoimmune diseases, and cancers.

Abstract: A freeform surface off-axial three-mirror imaging system comprising a primary mirror, a secondary mirror, a tertiary mirror, and an image sensor. Each reflective surface of the primary mirror, the secondary mirror, and the tertiary mirror is an xy polynomial freeform surface. A field angle of the freeform surface off-axial three-mirror imaging system is larger than or equal to 60°×1°. An F-number of the freeform surface off-axial three-mirror imaging system is less than or equal to 2.5.

Abstract: According to some embodiments, a system pre-processes, via a first thread, a captured image perceiving an environment surrounding the ADV obtained from an image capturing device of the ADV. The system processes, via a second thread, the pre-processed image with a corresponding depth image captured by a ranging device of the ADV using a machine learning model to detect vehicle lanes. The system post-processes, via a third thread, the detected vehicle lanes to track the vehicle lanes relative to the ADV. The system generates a trajectory based on a lane line of the tracked vehicle lanes to control the ADV autonomously according to the trajectory.

Abstract: In an approach for object detection with missing annotations under visual inspection, a processor receives an image. A processor classifies the image being a not-good image using a pre-trained classifier. A not-good image means one or more defect objects being in the image. A processor, in response to classifying the image being the not-good image, detects the one or more defect objects in the not-good image. A processor masks the one or more defect objects in the not-good image. A processor inputs the masked image to train a detector.

Abstract: Example hybrid automatic repeat request (HARQ) feedback methods and apparatus are described. One example method includes sending first indication information by a base station, where the first indication information is used to indicate a terminal to perform HARQ feedback. Second indication information is sent by the base station, where the second indication information includes second time information used to indicate the terminal to perform the HARQ feedback. The base station receives HARQ feedback information of the terminal. In one example method, the base station may send the first indication information within a first channel occupancy time (COT), and send the second indication information within a second COT.

Abstract: This application provides a system information transmission method, and a related device and system. The method includes: receiving, by a network device, a system information request sent by one or more terminals; transmitting, by the network device, system information SI, where SI transmitted for one terminal has a quasi-co-location QCL with a portion of downlink signal blocks, and the portion of downlink signal blocks are a subset of all downlink signal blocks transmitted by the network device; and sending, by the network device, first indication information, where the first indication information indicates a mapping between a downlink signal block and SI, and the downlink signal block has a QCL with the SI corresponding to the downlink signal block. The foregoing solution can reduce system overheads and improve resource utilization.