Abstract:
A device identification method includes a first electronic device that receives a first operation, displays a first interface, and starts a camera, where the first interface includes a preview image captured by the camera, and a second electronic device is included in the preview image; the first electronic device determines a second operation is related to the second electronic device in the preview image according to an image recognition technology and a wireless positioning technology; and the first electronic device outputs a second interface when the first electronic device detects the second operation by a user, where the second interface includes one or more controls for controlling the second electronic device such that the second electronic device is presented in real time in an augmented reality display manner.
Abstract:
In a human-computer interaction method, a second electronic device receives a first picture and identification information of at least one application that are sent by a first electronic device based on a first operation. The second electronic device displays the first picture and an icon of the at least one application. The second electronic device receives a second operation performed on a first icon, where the first icon is one icon in the icon of the at least one application. In response to the second operation, content of an application window of a first application displayed by the second electronic device is the same as that of an application window of the first application opened on a first interface.
Abstract:
The present disclosure discloses a distributed antenna system. The DAS includes a signal source, a first signal generator, a first passive mixer, and a first antenna. The first signal generator is configured to: generate a first local-frequency signal, and send it to the first passive mixer by using a passive DAS line. The first passive mixer is configured to receive the first local-frequency signal, and a downlink radio frequency signal having a second radio frequency band. The first passive mixer is further configured to: perform frequency mixing processing on the received downlink radio frequency signal having the second radio frequency band by using the first local-frequency signal, to form a first downlink radio frequency signal having a first radio frequency band, and then send it to the first antenna. The first antenna is configured to transmit the received first downlink radio frequency signal having the first radio frequency band.
Abstract:
This application discloses example beam direction adjustment methods, apparatuses, and media. One example method includes obtaining at least one of an azimuth or a pitch angle of a microwave antenna in an antenna system, where the antenna system includes the microwave antenna and a radome installed at an air interface of the microwave antenna, the radome includes a liquid crystal array including M×N liquid crystal cells, and both M and N are integers greater than 0. A target scanning angle of the microwave antenna is determined based on at least one of the azimuth or the pitch angle. A first bias voltage value of the liquid crystal array is determined based on the target scanning angle. A voltage of the liquid crystal array is set to the first bias voltage value.
Abstract:
A device identification method includes a first electronic device that receives a first operation, displays a first interface, and starts a camera, where the first interface includes a preview image captured by the camera, and a second electronic device is included in the preview image; the first electronic device determines a second operation is related to the second electronic device in the preview image according to an image recognition technology and a wireless positioning technology; and the first electronic device outputs a second interface when the first electronic device detects the second operation by a user, where the second interface includes one or more controls for controlling the second electronic device such that the second electronic device is presented in real time in an augmented reality display manner.
Abstract:
The present invention discloses a method for transmitting data between a baseband processing unit BBU and a remote radio unit RRU, and a data transmission apparatus. The RRU selects partial data in received data, and sends the partial data to the BBU by using a common public interface CPRI; or the BBU performs only channel coding processing or only channel coding processing and constellation mapping processing on the data, and sends processed data to the RRU. Then the RRU performs constellation mapping processing, multiple-antenna multiple-input multiple-output MIMO coding processing, and orthogonal frequency division multiplexing OFDM symbol generation processing on the data, or the RRU performs MIMO coding processing and OFDM symbol generation processing on the data. That is, steps in which data redundancy is added are executed by the RRU.