Thun, Clemens

An optical element (30) for influencing the light of a light source (15) is a louvre, which is formed by a grid-like arrangement of a plurality of reflector cells (31), each of which forming a ring-like wall (32) with a reflective surface, which extends from a light entry opening (33) of the associated reflector cell (31) to a light exit opening (34) of the reflector cell (31) The reflector cells (31) form at least one row (31<1>, 31<2>,31<3>) extending in a longitudinal direction, wherein lateral sections of the walls (32) of at least some reflector cells (31), with respect to the longitudinal direction have a reduced height compared to perpendicular portions of the wall (32) or form a translucent section.

An optical element (30) for influencing the light of a light source (15) is a louvre, which is formed by a grid-like arrangement of a plurality of reflector cells (31), each of which forming a ring-like wall (32) with a reflective surface, which extends from a light entry opening (33) of the associated reflector cell (31) to a light exit opening (34) of the reflector cell (31) The reflector cells (31) form at least one row (31<1>, 31<2>,31<3>) extending in a longitudinal direction, wherein lateral sections of the walls (32) of at least some reflector cells (31), with respect to the longitudinal direction have a reduced height compared to perpendicular portions of the wall (32) or form a translucent section.

A method and an apparatus for predicting a high frequency excitation signal are disclosed. The method includes: acquiring, according to a received low frequency bitstream, a set of spectral frequency parameters that are arranged in an order of frequencies, where the spectral frequency parameters include low frequency LSF parameters or low frequency ISF parameters; for the set of spectral frequency parameters, calculating a spectral frequency parameter difference (102) between every two spectral frequency parameters that have a same position interval in some or all of the spectral frequency parameters; acquiring a minimum spectral frequency parameter difference (103) from the calculated spectral frequency parameter differences; determining, according to a frequency bin that corresponds to the minimum spectral frequency parameter difference, a start frequency bin (104) for predicting a high frequency excitation signal from a low frequency; and predicting the high frequency excitation signal (105) from the low frequency according to the start frequency bin. By implementing this embodiment, a high frequency excitation signal can be better predicted, thereby improving performance of the high frequency excitation signal.

This application relates to the field of intelligent vehicle technologies, and in particular, provides a control method, a control apparatus, and the like for an odor adjustment system, to improve user experience. A target odor type of a to-be-released gas is determined based on scene information such as driving fatigue scene information, schedule reminder information, driving mode information, music scene information, or environment information, and the to-be-released gas having the determined target odor type is released, to adjust an odor of an environmental space. In this way, odors of different odor types are released in different scenes, to improve user experience.

Embodiments of this application relate to a communication method, a communication apparatus, and a computer-readable storage medium. In the provided communication method, a first device generates a first physical layer protocol data unit PPDU and a second PPDU based on first packet extension PE duration and second PE duration that is less than the first PE duration. The first PE duration indicates additional PE duration provided by a predefined PE field required for the first PPDU, and the second PE duration indicates PE duration supported by the second PPDU. The first PPDU includes first padding bits and a target PE field. The second PPDU includes second padding bits and the target PE field. The target PE field corresponds to third PE duration that does not exceed the second PE duration. The first padding bits and the target PE field correspond to duration that is not less than the first PE duration. The first device sends an aggregate physical layer protocol data unit A-PPDU that includes the first PPDU and the second PPDU. In this manner, PE fields in the A-PPDU can provide sufficient additional processing duration for a receiving device while alignment of ends of the PE fields is maintained.

This application provides a resource unit combination indication method and a communications apparatus. The method includes: determining a physical layer protocol data unit PPDU, where the PPDU includes a signal field, the signal field includes a resource unit allocation subfield and a combination indication corresponding to the resource unit allocation subfield, the resource unit allocation subfield indicates a plurality of resource units, and the combination indication indicates combination information of the plurality of resource units; and sending the PPDU. The method provided in this application can support one or more users in transmitting data by using a plurality of contiguous or discontiguous RUs, and indicate a combination status of the plurality of RUs to the user. This improves RU allocation flexibility of a system, and improves spectrum utilization of the system.

Embodiments of this application provide an energy efficiency evaluation method and a related device, to implement energy efficiency evaluation for a target object in a service-based architecture. In the method, a service producer obtains service energy consumption data of the target object, where the service energy consumption data includes service information and energy consumption information of the target object, and the service producer determines energy efficiency information of the target object based on the service energy consumption data. The target object may include a target object obtained by splitting a function implemented by a network element in the service-based architecture, and the service information indicates a service feature requirement of the target object. Therefore, the service producer may determine the energy efficiency information of the target object based on the service energy consumption data including the service information, to implement the energy efficiency evaluation for the target object in the service-based architecture.

Embodiments of this application provide a switch, a power conversion apparatus, and a power supply system. The power supply system includes a control unit, a switch, a direct current source, and a power conversion unit. The switch is electrically connected between the direct current source and the power conversion unit, and the control unit is configured to send a switch-off signal to the switch when a fault occurs on the direct current source or the power conversion unit. The switch includes a contact component, a trip-free structure, and a knob that are sequentially disposed in a stacked manner in a first direction. A trip unit of the trip-free structure is configured to receive the switch-off signal, to unlock the trip unit from the cradle. The cradle drives the connecting rod structure to move, to separate the moving contact from the fixed contact. When a circuit is faulty, the power supply system can automatically drive the switch provided in this application to be switched off without a manual operation.

This application provides an antenna system and a base station. The antenna system includes a first antenna array and a second antenna array. The first antenna array operates on a first operating frequency band, and the second antenna array operates on a second operating frequency band. The antenna system further includes a first reflection panel. The first antenna array and the second antenna array are stacked on the first reflection panel, and the first antenna array and the second antenna array share one first reflection panel. During assembly, the second antenna array may be an antenna existing on a base station in a conventional technology, and the first antenna array is additional 5G antennas. The first antenna array and the first reflection panel form a module. The module is disposed on a side of the second antenna array that is away from a radiation area. The first antenna array and the second antenna array share the first reflection panel. As can be learned from the foregoing description, according to the antenna system provided in this embodiment of this application, different modules may be added as required to improve communication performance of the existing base station, thereby reducing costs of refitting the base station.

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