A method by which a terminal operates in a wireless communication system, according to one embodiment, comprises the steps of: receiving time difference of arrival (TDoA) slots from anchor nodes (ANs); and measuring the position of the terminal by using the TDoA slots, wherein the TDoA slots include control information of the ANs and positioning reference signals (PRSs) of the ANs.

An integrated identification system including a housing, an active light beacon supported by the housing, an RF beacon supported by the housing, and a controller coupled to the active light beacon and RF beacon to facilitate independent control of the active light beacon and RF beacon.

Improving automated package delivery to mobile delivery receptacles to allow accurate and reliable package deliveries comprises a delivery receptacle for an automated package delivery via an unmanned aerial delivery device. The delivery receptacle is notified of a pending delivery and travels to a receiving location. The delivery receptacle emits infrared (IR) beacons from one or more IR beacon transmitters. An aerial delivery device detects the IR beacon and uses the beacons to navigate to the delivery receptacle. The delivery receptacle receives IR beacon responses from the aerial delivery device and continually or periodically directs the IR beacons in the direction of the aerial delivery device. The aerial delivery device deposits the package in the delivery receptacle. After receiving the package, the delivery receptacle transports the package to a secure location, such as into a garage.

An LED light and communication system includes one or more optical transceivers that have a light support having a plurality of light emitting diodes and one or more photodetectors attached thereto, and a processor in communication with the light emitting diodes and the one or more photodetectors. The processor is constructed and arranged to generate a communication signal. The one or more optical transceivers are engaged to a lighting fixture within a building. The one or more optical transceivers are constructed and arranged to communicate with a name tag.

A method for energy management in a robotic device includes providing a base station for mating with the robotic device, determining a quantity of energy stored in an energy storage unit of the robotic device, and performing a predetermined task based at least in part on the quantity of energy stored. Also disclosed are systems for emitting avoidance signals to prevent inadvertent contact between the robot and the base station, and systems for emitting homing signals to allow the robotic device to accurately dock with the base station.

A wayfinder system includes at least one beacon operable to transmit information that relates a position of the beacon with respect to a predefined destination. A method of directing a user to a passenger conveyance includes receiving information that relates a position of a beacon with respect to a predefined destination and displaying directions to the predefined destination from the information via a mobile device application. A method of configuring a wayfinder system for a passenger conveyance includes transiting a route from an initial point to a predefined destination; receiving information from at least one beacon along the route from the initial point to the predefined destination; and communicating the received information to the beacon such that the beacon is operable to transmit a position of the beacon with respect to the predefined destination.

An autonomous vehicle for use with an autonomous delivery service that facilitates a service delivery includes: a beacon receiver configured to receive a wireless homing beacon transmitted from a beacon device as a radio frequency (RF) signal that designates a desired delivery location at a service address selected by a subscriber, wherein the wireless homing beacon is modulated by beacon data that identifies the subscriber and includes a pseudo random code sequence generated by a code generator that is recognized by the autonomous vehicle to authenticate the delivery; and wherein the wireless homing beacon is received by the beacon receiver to facilitate the service delivery to the subscriber by the autonomous vehicle at the desired delivery location at the service address selected by the subscriber; an image capture device configured to generate delivery image data captured after the service delivery; and a transmitter configured to transmit the delivery image data captured after the service delivery.