Abstract:
This application provides a wavelength-division multiplexing device and a communications device. The wavelength-division multiplexing device may include a fastener, optical fibers, a filter, and a lens. The fastener is provided with an optical fiber positioning hole and a filter mounting groove, the filter mounting groove is disposed on a side of a tail end that is of the optical fiber positioning hole and that is away from an opening of the optical fiber positioning hole, and the filter mounting groove and the tail end of the optical fiber positioning hole are spaced apart. The optical fiber may be installed in the optical fiber positioning hole, the filter may be installed in the filter mounting groove, and the filter may transmissively transmit or reflect light rays emitted from the optical fiber.
Abstract:
This application provides a touch control screen, a screen module, and an electronic device. An end portion of a groove that is in a conducting layer of the touch control screen and whose component of length is greater than 0 on a y-axis is extended. This can reduce stress concentration at the end portion of the groove, thereby improving reliability of a capacitive touch control screen. In addition, the touch control screen in this application can be prepared simply by designing a pattern of a mask in advance. This features ease of operation and rapid deployment and is very practical.
Abstract:
An antenna array, including at least two antenna bays. Operating frequency bands of all of the at least two antenna bays are the same, each antenna bay includes at least one transmit channel or receive channel, and each antenna bay transmits data in a co-frequency co-time full duplex manner. Alternatively, operating frequency bands of two adjacent antenna bays of the at least two antenna bays are adjacent frequency bands or are separated by one or two frequency bands, each antenna bay includes at least one receive channel and at least one transmit channel, and each antenna bay transmits data in an asynchronous manner. An angle value between a line connecting center points of any two adjacent antenna bays of the at least two antenna bays and a horizontal line is acute. By using the present invention, isolation between antenna bays of the antenna array is increased.
Abstract:
The present invention provides a method and a device for interleaving processing in a WLAN system, and relates to the field of communications technologies. The method includes: obtaining, by a WLAN device, a predetermined number of identifiers of valid positions from any sub-interleaving processing contained in an interleaving processing; determining valid input positions of the interleaving processing according to the identifiers of the valid positions; transmitting data bits to be transmitted in the valid input positions, and transmitting bit 0 and/or bit 1 or no data bit in other non-valid input positions of the interleaving processing other than the valid input positions; modulating data bits transmitted in interleaving processing output positions to obtain modulation signals and mapping the modulation signals onto the corresponding data sub-carriers respectively. The present invention can be applied in interleaving processing of data bits to be transmitted.
Abstract:
The present disclosure relates to antennas, lighting systems, and communications systems. One example antenna includes a radiating element and a feeding unit. The antenna is integrated with a lighting system, where the lighting system includes a protective cover and a light source disposed inside the protective cover. Both the radiating element and the feeding unit of the antenna are integrated with the protective cover of the lighting system. The radiating element is attached to a surface of a cover body of the protective cover that is in a forward direction of the light source. One part of the feeding unit is integrated with the protective cover, and is electrically connected to the radiating element, and the other part of the feeding unit supports an electrical connection to a signal processing device.
Abstract:
A fast charging method for a parallel battery pack is provided, including: obtaining a maximum charging current allowed by a charging trunk and a charging current required for charging a parallel battery pack; comparing the charging current required for charging the parallel battery pack with the maximum charging current allowed by the charging trunk; if the charging current required for charging the parallel battery pack is less than or equal to the maximum charging current allowed by the charging trunk, performing parallel charging on battery units; or if the charging current required for charging the parallel battery pack is greater than the maximum charging current allowed by the charging trunk, changing some or all of battery units in the parallel battery pack to a series connection, and performing series charging on the battery units. The fast charging method for a parallel battery pack can effectively shorten a charging time.
Abstract:
A dielectric resonator, a dielectric filter, a base station and a method for fabricating the dielectric resonator or the dielectric filter are provided. The dielectric resonator includes: a solid dielectric resonator body, a blind hole located on one side of the solid dielectric resonator body, a metalized layer covering both a surface of the solid dielectric resonator body and a surface of the blind hole, and a demetallized notch located at the metalized layer on the surface of the blind hole. The dielectric resonator provided in the present application can implement tuning of the dielectric resonator, and reduce impact on the resonance frequency of the dielectric resonator after the dielectric resonator is tuned, where the impact caused by that the demetallized notch is covered by a metal material in an assembly process of the dielectric resonator, and signal energy that is leaked from the notch is reduced.
Abstract:
The embodiments of the present disclosure provide an antenna system, including a barrel directional antenna array, a radio frequency transceiver, and a baseband signal processing and control unit. Based on the barrel directional antenna array, the antenna system can adjust the quantity of sectors in a 360-degree range based on a change in a service volume in the 360-degree sector, so that an adjusted sector service capacity threshold can accommodate the service volume in the 360-degree sector. In this way, resource scheduling flexibility is improved.
Abstract:
A subframe configuration switching method and apparatus are provided to reduce an impact of subframe configuration switching on a service of a terminal. In the method, a base station determines that a subframe configuration of a cell needs to be changed from a first configuration to a second configuration, and notifies a terminal in the cell of the change in the subframe configuration of the cell. The base station sends the second configuration to the terminal when first duration that is after the notification expires. The base station makes the second configuration effective when second duration that is after the base station sends the second configuration expires. The base station does not perform initial transmission scheduling on the terminal in the cell within the first duration, and the base station does not schedule the terminal in the cell within the second duration.
Abstract:
The present application provides a dielectric resonator, a dielectric filter, a base station and a method for fabricating the dielectric resonator or the dielectric filter. The dielectric resonator includes: a solid dielectric resonator body, a blind hole located on one side of the solid dielectric resonator body, a metalized layer covering both a surface of the solid dielectric resonator body and a surface of the blind hole, and a demetallized notch located at the metalized layer on the surface of the blind hole. The dielectric resonator provided in the present application can implement tuning of the dielectric resonator, and reduce impact on the resonance frequency of the dielectric resonator after the dielectric resonator is tuned, where the impact caused by that the demetallized notch is covered by a metal material in an assembly process of the dielectric resonator, and signal energy that is leaked from the notch is reduced.