摘要:
This application provides an antenna-under-display management method and apparatus, and relates to the field of communication technologies. In the method, antenna-under-display blocking information of a device is obtained, a first antenna set is determined based on the antenna-under-display blocking information, and signal transmission is performed by using the first antenna set. The first antenna set is a subset of a second antenna set, and the second antenna set is constituted by an unblocked antenna-under-display of the device. In other words, each antenna in the first antenna set is an unblocked antenna. This avoids reduction of radiation efficiency of the antenna-under-display that is caused by blocking a screen due to a user operation, an ambient environment, or the like, improves a signal to interference plus noise ratio of a communication link, reduces a quantity of invalid transmissions and repeated transmissions, reduces a transmit power and power consumption of the device, and improves quality of a communication service.
摘要:
This application provides a signal transmitter, to improve signal splitting flexibility of the transmitter and improve system performance of the signal transmitter. The signal transmitter includes: a signal splitting module, including M output interfaces, where the signal splitting module is configured to: split a signal into N sub-signals, and output the N sub-signals through N of the M output interfaces, where M and N are integers, M≥2, N≥1, and M≥N; an integrated array traveling-wave tube amplifier, including M radio frequency channels, where the M channels one-to-one correspond to the M output interfaces, each channel is configured to perform power amplification on a sub-signal that is output from a corresponding output interface, and each channel is openable and closeable; a power supply module, configured to supply power to the integrated array traveling-wave tube amplifier; and at least one transmit antenna, configured to send a signal obtained through power amplification.
摘要:
A polarization reconfigurable apparatus, a communications device, and a polarization reconfiguration method are provided, to eliminate impact of a depolarization effect on transmission quality of an electromagnetic wave. The polarization reconfigurable apparatus includes: a signal generation unit, a signal adjustment unit, a digital-to-analog conversion unit, and a transmission unit that are sequentially connected. A signal transmitted by a first port in the transmission unit is orthogonal to a signal transmitted by a second port in the transmission unit. The signal generation unit is configured to generate a first signal. The signal adjustment unit is configured to: determine a polarization mode of a to-be-transmitted signal; divide the first signal into two first signals; and adjust an amplitude and a phase of a 1 st first signal and an amplitude and a phase of a 2 nd first signal based on the determined polarization mode. The digital-to-analog conversion unit is configured to perform digital-to-analog conversion on an adjusted 1 st first signal to obtain a second signal, and perform digital-to-analog conversion on an adjusted 2 nd first signal to obtain a third signal. The transmission unit is configured to transmit the second signal by using the first port, and transmit the third signal by using the second port.
摘要:
The present invention discloses a directional link maintenance method and a station STA, to improve accuracy and timeliness of directional link availability determined by the STA. The method in the embodiments of the present invention includes: monitoring, by a first station STA, an information packet, where the information packet carries first identification information, and the first identification information is used to identify a first directional transmit beam that is used a second STA when the second STA sends the information packet; determining, by the first STA, whether the information packet is an information packet that is sent by the second STA to a third STA, and obtaining the first identification information if the information packet is an information packet that is sent by the second STA to the third STA; and determining, by the first STA, whether the first identification information matches preset second identification information, and if the first identification information matches the preset second identification information, determining, by the first STA, that the first directional transmit beam matches a second directional transmit beam, and changing a value of a counter that corresponds to a directional link between the first STA and the second STA, where the second directional transmit beam is a directional transmit beam determined by the second STA on the directional link through beam training, and the second identification information is used to identify the second directional transmit beam.
摘要:
Embodiments of the present invention provide a method and an apparatus for aligning antenna beams in a high-low frequency co-site network. The method includes: performing antenna alignment of a low frequency beam with a communications device, to establish a low frequency channel; and performing high frequency beam alignment of a high frequency antenna with the communications device by using the low frequency channel. In the embodiments of the present invention, high frequency beam alignment of a high frequency antenna is performed by using an established low frequency channel. In this way, a technical problem that a high frequency beam alignment time of a high frequency antenna is long due to a narrow field of view of a high frequency beam can be avoided, so as to quickly implement high frequency beam alignment of a high frequency antenna.
摘要:
This application provides a phase compensation apparatus and method. The phase compensation apparatus can perform phase compensation on a baseband signal based on a digital ripple signal, to obtain a compensated baseband signal, and convert the compensated baseband signal into a radio frequency signal. The digital ripple signal is obtained based on a ripple signal of a high voltage for a cathode that supplies power to a cathode of a vacuum amplifier. The phase compensation apparatus in this application can implement phase compensation on a baseband, and convert the compensated baseband signal, to obtain the radio frequency signal. This avoids use of a low-precision phase shifter and a complex bias compensation circuit, reduces complexity of a circuit design, and improves phase compensation precision.
摘要:
This application provides a non-line-of-sight object imaging method and an electronic device, and belongs to the field of sensor technologies. The electronic device includes a first component and a second component. The method includes: detecting a trigger signal; in response to the trigger signal, obtaining first data collected by the first component, and obtaining second data collected by the second component, where the first data includes an electromagnetic signal collected by the first component, and the second data includes image information collected by the second component and/or movement information of the electronic device; and matching the first data and the second data, and generating an electromagnetic image of a non-line-of-sight object based on a matching result. The method provided in this application may be applied to, but is not limited to, a portable device such as a mobile phone or a mobile device such as a vehicle, for example, may be applied to target detection and tracking in autonomous driving. In addition, due to movement of the first component, a wide beam scanning range can be implemented. Therefore, imaging of the non-line-of-sight object in a plurality of application scenarios may be further implemented by using a small-sized portable device.
摘要:
This application provides a satellite, a terminal device, a satellite communication system, and a satellite communication method. The satellite communication method includes: a first satellite obtains, at a media access control MAC layer, data and/or signaling, where the first satellite is a low orbit satellite. When MAC-layer first processing needs to be performed on the data and/or the signaling, the first satellite performs the MAC-layer first processing on the data and/or the signaling, where the MAC-layer first processing includes at least one of hybrid automatic repeat request HARQ function processing and random access RA function processing. According to the satellite communication method in this application, the low orbit satellite obtains, at the MAC layer, the data and/or the signaling, and when the HARQ function processing and/or the RA function processing need/needs to be performed, the first satellite performs the HARQ function processing and/or the RA function processing. In this way, complexity and costs of implementing an on-satellite system of the low orbit satellite are considered, and a delay of processing the data and/or the signaling by the satellite communication system can also be reduced.
摘要:
A data processing method is used by a first communications node to obtain a target block after a second communications node verifies to-be-verified data based on a second blockchain node. The method in embodiments of this application includes: obtaining, by a first communications node, to-be-verified data when a terminal camps on a target cell, where the to-be-verified data is obtained based on camping information of the terminal, and the target cell is a cell within signal coverage of the first communications node; sending, by the first communications node, the to-be-verified data to the second communications node, so that the second communications node verifies the to-be-verified data based on the second blockchain node; and obtaining, by the first communications node, a target block if a verification result is that the verification succeeds.