Abstract: Systems, methods, and computer-readable media for detecting and localizing a position of an unmanned aerial vehicle (UAV) in an environment. Particularly, a management computer can orchestrate the detection and localization of the UAV using base stations that are part of a cellular network infrastructure, reconfigurable intelligent surfaces (RIS) disposed about the environment, and one or more reference nodes. One or more base stations can transmit detection and localization signals towards one or more RIS instances to direct signals upwards towards UAVs disposed at or above the base stations using various configurations of the RIS instances. Angles of departure or arrival of the localization signal can be used to determine a position of the UAV. After localizing the UAV, a notification message specifying the derived position of the UAV in the environment can be generated.

Abstract: Embodiments of the present application provide a beam tracking method, apparatus, and system, which relate to the communications field, so that a relatively high channel capacity can be obtained, and system spectrum efficiency can be improved. The method includes: obtaining, by a communications device, a channel relevance coefficient, and determining a first radio-frequency weighted matrix of the communications device in an (n+1)th timeslot according to the relevance coefficient, where n is an integer, and n?1; receiving, by the communications device, a first known signal sent by a peer device, and determining an equivalent channel matrix in the (n+1)th timeslot according to the received first known signal; and determining, by the communications device, a digital weighted matrix of the communications device in the (n+1)th timeslot according to the equivalent channel matrix, so as to match a real-time channel and transmit data by using the real-time channel.

Abstract: Embodiments of the present application provide a beam tracking method, apparatus, and system, which relate to the communications field, so that a relatively high channel capacity can be obtained, and system spectrum efficiency can be improved. The method includes: obtaining, by a communications device, a channel relevance coefficient, and determining a first radio-frequency weighted matrix of the communications device in an (n+1)th timeslot according to the relevance coefficient, where n is an integer, and n?1; receiving, by the communications device, a first known signal sent by a peer device, and determining an equivalent channel matrix in the (n+1)th timeslot according to the received first known signal; and determining, by the communications device, a digital weighted matrix of the communications device in the (n+1)th timeslot according to the equivalent channel matrix, so as to match a real-time channel and transmit data by using the real-time channel.