Disclosed is an infrared ray positioning node device, including a reflection cup with a plurality of side surfaces; and an infrared ray emitting tube cooperating with the reflection cup and being positioned so that the range of an included angle m formed after the rays emitted by the infrared ray emitting tube reflect off some reflection side surfaces in the plurality of side surfaces is 0°≦m<180°. Also disclosed is an infrared ray positioning node system. The present invention makes the direction of an infrared ray emission signal controllable in the range of 0°-180°, makes the signal stable and even in intensity, improves the radiation utilization of the infrared ray emitting tube, reduces the power consumption of the node device, realizes uniform projection of infrared light, and effectively avoids emission blind areas of a single node and signal interference between adjacent nodes.

A target reflector search device. This device comprises an emitting unit for emitting an emission fan, a motorized device for moving the emission fan over a spatial region, and a receiving unit for reflected portions of the emission fan within a fan-shaped acquisition region, and a locating unit for determining a location of the reflection. An optoelectronic detector of the receiving unit is formed as a position-resolving optoelectronic detector having a linear arrangement of a plurality of pixels, each formed as an SPAD array, and the receiving unit comprises an optical system having an imaging fixed-focus optical unit, wherein the optical system and the optoelectronic detector are arranged and configured in such a way that portions of the optical radiation reflected from a point in the acquisition region are expanded on the sensitivity surface of the optoelectronic detector in such a way that blurry imaging takes place.

A system includes a first-vehicle processor configured to receive a signal broadcast from a second vehicle. The processor is also configured to determine a distance between a first transceiver, receiving the signal, and a second transceiver, transmitting the signal. The processor is further configured to determine second vehicle dimensions. Also, the processor is configured to digitally map a second vehicle perimeter around a second transceiver location, determined based on the distance and alert a first vehicle driver of a likely overlap condition of the second vehicle perimeter and a first vehicle perimeter.

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.

In some aspects, a method of wireless communication by a user equipment (UE) includes receiving, by the UE on a component carrier (CC), a downlink (DL) control information (DCI) that triggers transmission, by the UE on another CC, of an uplink (UL) reference signal (RS) for positioning. The method additionally includes transmitting, by the UE in response to the DCI, the UL RS for positioning on the other CC. In other aspects, a method of wireless communication by a base station includes transmitting, by the base station to a UE on a CC, a DCI that triggers transmission, by the UE on another CC, of an UL RS for positioning. The method additionally includes receiving, by the base station from the UE in response to the DCI, the UL RS for positioning on the other CC.

A tracked device may be used in an extended reality system in coordination with a tracking device. The tracked device may be ordinarily difficult to track, for example due to changing appearances or relatively small surface areas of unchanging features, as may be the case with an electronic device with a relatively large display surrounded by a thin physical outer boundary. In these cases, the tracked device may periodically present an image to the tracking device that the tracking device stores as an indication to permit tracking of a known, unchanging feature despite the image not being presented continuously on the display of the tracked device. The image may include a static image, designated tracking data overlaid on an image frame otherwise scheduled for presentation, or extracted image features from the image frame otherwise scheduled for presentation. Additional power saving methods and known marker generation methods are also described.

Disclosed are techniques for wireless positioning. In an aspect, a mobile device receives a timing synchronization offset parameter for a first cell of a set of cells, wherein the timing synchronization offset parameter represents a difference between a system frame number (SFN) initialization time of the first cell and an SFN initialization time of a reference cell, and processes the timing synchronization offset parameter for the first cell based on the SFN initialization time of the reference cell having changed.

Apparatuses, components and methods are provided herein useful to provide assistance to customers and/or workers in a shopping facility. In some embodiments, a shopping facility personal assistance system comprises: a plurality of motorized transport units located in and configured to move through a shopping facility space; a plurality of user interface units, each corresponding to a respective motorized transport unit during use of the respective motorized transport unit; and a central computer system having a network interface such that the central computer system wirelessly communicates with one or both of the plurality of motorized transport units and the plurality of user interface units, wherein the central computer system is configured to control movement of the plurality of motorized transport units through the shopping facility space based at least on inputs from the plurality of user interface units.

A location system comprising: a location network comprising a plurality of reference nodes and at least one controller. Each reference node is operable to transmit a respective beaconing signal from which a respective measurement can be taken by a mobile device for use in determining a location of the mobile device. The at least one controller is configured to control whether and/or how often one or more signals of the location system are transmitted to be used in determining the location of the mobile device, the control being based on feedback from at least one determination of the location of the mobile device relative to the reference nodes.

Disclosed are techniques for receiving reference radio frequency (RF) signals for positioning estimation. In an aspect, a user equipment (UE) receives, from a network node, multiple resource sets for tracking (TRSs). Each TRS comprises a plurality of reference signal resources. The multiple TRSs are signals from a same antenna port or are quasi-co-located signals. The UE processes the multiple TRSs to determine positioning-related quantity(ies). The UE can estimate its position based on the positioning-related quantity(ies) and/or send the positioning-related quantity(ies) to the network.