The present application discloses a wireless location device protection apparatus including: a protection element including a first base portion and a second base portion, the first base portion including an enclosure portion and a window, the enclosure portion being gathered from a periphery of the first base portion towards the central axis, the gathered center of the enclosure portion being formed with the window; an inner space formed by enclosing between the first base portion and the second base portion for accommodating a wireless location device; a cover body accommodated in the inner space for covering the window; an upper surface of the wireless location device fits with a lower surface of the cover body, and an edge of the upper surface of the cover body fits with an inner wall face of the enclosure portion to form a face contact seal, improving waterproof capability.

The present application discloses a wireless location device protection apparatus including: a protection element including a first base portion and a second base portion, the first base portion including an enclosure portion and a window, the enclosure portion being gathered from a periphery of the first base portion towards the central axis, the gathered center of the enclosure portion being formed with the window; an inner space formed by enclosing between the first base portion and the second base portion for accommodating a wireless location device; a cover body accommodated in the inner space for covering the window; an upper surface of the wireless location device fits with a lower surface of the cover body, and an edge of the upper surface of the cover body fits with an inner wall face of the enclosure portion to form a face contact seal, improving waterproof capability.

A locator includes a yaw sensor for measuring a yaw orientation of the locator and a triaxial antenna for receiving a dipole electromagnetic signal to generate flux components. A processor generates a relative yaw orientation characterizing a difference between the yaw orientation of the walkover locator and a reference yaw orientation of the transmitter and determines an actual position of at least one of the locate points relative to the walkover locator based on at least one measured set of the flux components, the relative yaw orientation and the measured pitch orientation of the transmitter. The locator can measure GPS positions of locate points at least for use in identifying an overhead position. Selected combinations of various positions and features relative to the transmitter and locator can be shown in isometric views. The locator can be configured for automatic switching between locating modes based on proximity to a plane of symmetry.

An aircraft passenger service unit, which is configured for being installed in a passenger cabin of an aircraft. The unit includes at least two near field communication interfaces, wherein each of the at least two near field communication interfaces is configured for a wireless exchange of messages with a corresponding near field communication interface of a neighboring aircraft passenger service unit. The messages include information that identifies the aircraft passenger service unit and the near field communication interface sending the respective message.

Drone resilience against electronic warfare (EW) is enhanced by repurposing downed drones as navigational beacons or communication nodes within a mesh network. The techniques leverage remaining capabilities of the downed drones to support the operational continuity of active drones, creating a self-sustaining and robust aerial network. The downed drones are repurposed into passive navigational beacons or communication nodes to assist active dronesthose still flying on a same or overlapping missionin overcoming EW threats. The navigational beacons may include radio frequency (RF) signals or visual signals (e.g., infra-red (IR) or light emitting diode (LED) lights) encoded with location or position data of the downed drone. Active drones may use this position data to estimate their own positions and navigate accordingly to continue their missions.

An apparatus for a wireless communication system is provided. The apparatus is to transmit a reference signal on a common set of resource elements (REs), the common set of resource elements being used by one or more further apparatuses in the wireless communication system, so that the reference signal of the apparatus and one or more further reference signals of the one or more further apparatuses use the same resource elements. Moreover, the apparatus is to transmit the reference signal depending on a base sequence or a sequence derived from the base sequence and depending on a set of configuration parameters.

A controller for a working vehicle is configured or programmed to, when an attachment is attached to a hitch, if the controller succeeds in selecting one of one or more pieces of identification information that is included in one of one or more wireless signals transmitted from one or more transmitters in or on one or more attachments and received by a receiver according to a predetermined condition, perform a predetermined process based on the selected piece of identification information, and if the controller fails to select any of the one or more pieces of identification information, select, according to a predetermined condition, one of the one or more pieces of identification information that is included in one of the one or more wireless signals received by the receiver when the working vehicle takes action and perform the predetermined process based on the selected piece of identification information.

A method and system for enabling the determination of a position of a receiver within a space includes transmitting a beacon signal from each of a plurality of beacon devices located at different locations within the space. The beacon signal transmitted from each beacon device has a unique information component and may have a unique frequency pattern of multiple frequencies. Each beacon signal can be distinguishable from the beacon signals transmitted from any other of the beacon devices based on the combination of its unique information component and its unique frequency pattern. The beacon signals are received at a receiver. At the receiver, for each beacon signal of a working subset, time-delay information of the received beacon signal is determined and multilateration is applied to determine the position of the receiver based on the location of each beacon device of the working subset.

In an aspect, a relay UE transmits sidelink reference signals for positioning (SL-RS-P) off first and second reconfigurable intelligent surfaces (RISs). The target UE measures the reflected SL-RS-Ps. In an aspect, the SL-RS-Ps may be associated with configurations that are configured by a base station. In an aspect, a position estimation entity may obtain measurement information associated with the reflected SL-RS-Ps and determine a position estimate of the target UE based at least in part upon the measurement information.

Methods and techniques are described for secure, low-latency, high-precision positioning and timing using networks of spectrally and/or temporally redundant beacons. Beacons are transmitted from network nodes to network users; transmitted from network users to network nodes; or transponded to and from network nodes through network users using bent-pipe transponders. A spectrally efficient beacon air interface induces at least one of spectral or temporal redundancy on the transmitted beacon signal, and means for exploiting the redundancy can separate beacons at centralized network operating centers with precision dictated by the power of those signals above the receiver noise floor, rather than other beacon signals received at the same time and frequency. Specific beacon transmission parameters provide for determining positioning and timing of aerial network users consistent with United States Federal Aviation Administration regulations for Class-1 small unmanned aircraft systems.