Abstract:
This application provides a heat dissipation apparatus which includes an accommodating part and a heat dissipator assembly. The accommodating part includes an accommodating cavity for accommodating a heating component. The heating component is plugged into the accommodating cavity along a first direction. The heat dissipator assembly includes a heat dissipator, a support, a sliding component, and a linkage part. The support is fixed to the accommodating part. The heat dissipator is connected to the support by using the sliding component. The accommodating part includes a first side surface and a second side surface that are opposite to each other, and the heat dissipator is located on the first side surface. The sliding component includes an oblique slot and a sliding block. The oblique slot gradually approaches the second side surface of the accommodating part along the first direction.
Abstract:
A digital pre-distortion (DPD) calibration coefficient control method and apparatus are applied to a microwave communications device that includes an analog device and a digital device, and can ensure a DPD calibration effect, where the method includes determining, by interpolation and according to DPD calibration coefficients corresponding to at least 2N typical working states of the analog device obtained in advance, a specified DPD calibration coefficient corresponding to a specified working state of the analog device, where N is a quantity of parameters representing a working state of the analog device, and controlling a DPD calibration coefficient according to the determined specified DPD calibration coefficient corresponding to the specified working state of the analog device.
Abstract:
A heating module, a heat dissipation apparatus, and a communication device. The heating module includes an enclosure, a first heating component, and a floating cover. The first heating component is disposed in the enclosure, the enclosure has an opening, and the floating cover has a first boss. The first boss extends into the opening. The floating cover is mounted on the enclosure via a first elastic member, and the first elastic member drives the first boss to apply first pressure to the first heating component.
Abstract:
A circuit board module includes a substrate, an optical module component, an elastic component, and a heat sink. The optical module component includes a housing and an optical module, the housing is arranged on a side of the substrate, a hole is provided on a side that is of the housing and that is away from the substrate, and the optical module is inserted into the housing from a first end of the housing in a first direction. A first end of the elastic component is fixedly coupled to the substrate, and a second end of the elastic component is fixedly coupled to a side that is of the housing and that faces the substrate. The heat sink is arranged on a side that is of the housing and that is away from the substrate, and the heat sink is fixedly coupled to the substrate.
Abstract:
A digital pre distortion (DPD) calibration coefficient control method and apparatus are applied to a microwave communications device that includes an analog device and a digital device, and can ensure a DPD calibration effect, where the method includes determining, by interpolation and according to DPD calibration coefficients corresponding to at least 2N typical working states of the analog device obtained in advance, a specified DPD calibration coefficient corresponding to a specified working state of the analog device, where N is a quantity of parameters representing a working state of the analog device, and controlling a DPD calibration coefficient according to the determined specified DPD calibration coefficient corresponding to the specified working state of the analog device.
Abstract:
This application provides a wearable device, including an antenna radiator, a Satellite communication module, and a processor. The Satellite communication module includes a satellite positioning unit and a short packet unit. The satellite positioning unit is configured to obtain, under control of the processor, global positioning information by using the antenna radiator. The short packet unit is configured to multiplex, under control of the processor, the antenna radiator to receive or send a Satellite short packet. This application further provides a Satellite short packet sending method applied to the wearable device, and the method includes: When receiving an input signal and/or when determining that a current environment meets a trigger condition, the processor of the wearable device controls the Satellite communication module to send the Satellite short packet by using the antenna radiator.
Abstract:
A multi-beam polling based transmission method and apparatus, and a communications device and an electronic device readable storage medium based on the method are disclosed. An access point AP broadcasts a beacon message, where the beacon message is used to indicate duration of a beacon period; and sends a data packet that includes channel use duration to a station STA, where the channel use duration is used to indicate a target slot at which the AP communicates with the STA within a duration range of the beacon period, so that the AP can communicate with the STA at the target slot.
Abstract:
A frequency allocation method includes receiving, by a control device, a frequency allocation message using a dedicated channel, wherein the frequency allocation message carries a node identifier and a received signal strength information for a frequency, and determining, according to the frequency allocation message, a station needing frequency allocation, and obtaining node information of each station in a network. The method further includes computing, according to the received signal strength information for the frequency of the station needing frequency allocation and further according to the node information of each station, an optimum working frequency of the station needing frequency allocation, and allocating the optimum working frequency to the station needing frequency allocation.
Abstract:
A method for reducing power consumption on an xDSL subscriber board, includes: obtaining a maximum downlink service bandwidth, a downlink signal-to-noise ratio margin in line connection parameters of the user port, and transmission mode information in a line template bound to the user port; determining whether the downlink signal-to-noise ratio margin is larger than a preset value, if yes, reducing a maximum downlink nominal total transmission power; otherwise, configuring the maximum downlink nominal total transmission power as a downlink transmit power in line connection parameters of the current port; calculating a minimum undistorted power supply voltage required by a corresponding line driver of each registered user port under the current configuration of the bound template, comparing minimum undistorted power supply voltage values, to find the largest value; and controlling an output voltage of a power module of a line driver equaling to the largest value.
Abstract:
This application provides a heat dissipation apparatus for an optical module, and a communication device, and relates to the field of communication device technologies, to improve heat dissipation of an optical module. The heat dissipation apparatus for an optical module provided in this application includes a heat dissipation substrate, including a plurality of first heat dissipation parts, a plurality of adapter parts, and a second heat dissipation part. The plurality of first heat dissipation parts are in a one-to-one correspondence with the plurality of adapter parts. Each adapter part is configured to connect the first heat dissipation part corresponding thereto and the second heat dissipation part, and the plurality of first heat dissipation parts, the plurality of adapter parts, and the second heat dissipation part are integrally formed.