Aircraft guidance with transmitting beacons is disclosed. An example apparatus includes a transceiver of an aircraft to receive signals from deployed beacons, a signal analyzer to analyze the signals to determine distances of the respective beacons relative to the aircraft, and a position calculator to calculate a positional zone of the aircraft based on the distances.

An apparatus, method and computer program for a mobile transceiver and for a base station transceiver. The method includes receiving a downlink signal from a base station transceiver of the mobile communication system via a downlink data channel, identifying a line of sight component of at least the first positioning symbol of the downlink signal based on the one or more sequences of zero-value samples and determining information related to a location of the mobile transceiver based on the one or more non-zero-value samples received within the line of sight component of the first positioning symbol. The downlink signal includes one or more positioning symbols having a first positioning symbol, wherein the first positioning symbol is based on samples in a time domain to be transmitted by the base station transceiver.

A method is provided to receive, by a first device, a first beacon generated by a second device. The first beacon includes a first unique identifier. Based on the first beacon, the first device is triggered to transmit a second beacon including a second unique identifier. It can be determined that the first device and the second device are within a predetermined distance based on the first beacon and the second beacon. The first device receives a first set of data that includes the location information of the second device. The first set of data is decoded based on the first unique identifier.

In a method for initializing at least one network segment of a network for the wireless location of movable locating objects arranged in a limited space using pulsed radio signals, wherein the at least one network segment in the limited space has at least two spaced apart reference nodes which form a chain-shaped communication network and which are autarkic in terms of communication, wherein a locating object arranged in the limited space is able to be located using one of the distance-based trilateration carried out by at least three reference nodes, and wherein general information is communicated by broadcast channels, the reference nodes listen to the broadcast channels in a standby position until initial information about their active participation in the communication network is received.

An example unmanned aerial vehicle includes an electromagnetic radiation (EMR) sensor. The EMR sensor detects a signal indicative of a direction of emission of the signal. The unmanned aerial vehicle also includes a nozzle to eject the substance based on the direction of emission.

A method and system are disclosed that provide integrated detection of spatially distributed events and monitoring of spatially distributed areas. Wireless beacon detection and event reporting by a mobile device are used to provide a management server with location information about events that may require video surveillance. The management server determines if any cameras are appropriate to monitor that location, and directs a camera management server to initiate video surveillance.

Localization systems and methods for transmitting timestampable localization signals from anchors according to one or more transmission schedules. The transmission schedules may be generated and updated to achieve desired positioning performance. For example, one or more anchors may transmit localization signals at a different rate than other anchors, the anchor transmission order can be changed, and the signals can partially overlap. In addition, different transmission parameters may be used to transmit two localization signals at the same time without interference. A self-localizing apparatus is able to receive the localization signals and determine its position. The self-localizing apparatus may have a configurable receiver that can select to receive one of multiple available localization signals. The self-localizing apparatuses may have a pair of receivers able to receive two localization signals at the same time. A bridge anchor may be provided to enable a self-localizing apparatus to seamlessly transition between two localization systems.

Disclosed are methods, devices, systems, nodes, apparatus, servers, computer-/processor-readable media, and other implementations, including a method, at a wireless node, for supporting positioning of one or more wireless devices. The method includes transmitting, by the wireless node configured as a positioning beacon, a first downlink signal for supporting positioning of the one or more wireless devices, and transmitting a second downlink signal that inhibits a receiving wireless device, from the one or more wireless devices, from sending uplink signals to the wireless node configured as the positioning beacon.

An electronic beacon placed stationary in a known location. The beacon includes a map, stored therein, pertaining to a covered area. The map includes coordinates of the known location with reference to the map. The electronic beacon is configured to transmit at least a navigational signal. The electronic beacon has a radio transmitter to communicate the map to at least one moving device in the covered area.

Systems and methods for generating and transmitting ranging signals and data signals from transmitters in a wireless positioning system, and also for receiving and processing those signals at a mobile device. Different approaches are used, including separately transmitting the ranging signals and the data signals based on time, frequency, code, phase, or any combination thereof.