For determining a temporal reference and/or at least one spatial reference, in a communication system comprising a plurality of gathering gateways configured to transmit beacons, a device performs for each beacon: obtaining (502) therefrom information on current geolocation of the gathering gateway that transmitted said beacon; obtaining (503) therefrom information representing a communication technology used for determining said current geolocation; and obtaining (504) therefrom information indicating whether said current geolocation was determined by internal means or by external means. The device then uses (509) the information thus obtained for determining the temporal reference for synchronizing in time and frequency said device and/or the spatial reference or references for determining the geolocation of said device.

A first communication device determines which one or more types of feedback information, from among a plurality of types of feedback information associated with a range measurement exchange session, a second communication device is to provide to the first communication device in a feedback packet transmitted as part of the range measurement exchange session. The first communication device transmits to the second communication device one or more indications of the determined one or more types of feedback information that the second communication device is to provide to the first communication device in the feedback packet. The first communication device performs the range measurement exchange, including receiving the feedback packet from the second communication device, wherein the feedback packet includes the determined one or more types of feedback information.

A system includes a plurality of vehicle-deployed wireless transmitters and a processor. The processor is configured to receive, from a mobile device, signal strengths of signals from the wireless transmitters as detected by the mobile device. The processor is further configured to determine a location of the mobile device in a vehicle, based on the distance from the mobile device to each of the respective transmitters, as indicated by the received signal strengths and store the location of the mobile device as an occupant location.

Described in this document are ways to accomplish high resolution and high dynamic range Doppler-Effect measurements for use in wireless communications and other applications such as positioning. Doppler Effect (interchangeably called Doppler shift or Doppler frequency shift) measurements have traditionally been done with purpose-built devices, such as pulse-based radars. Presented in this document are alternative ways to incorporate Doppler frequency shift measurement using modulated carrier signals with a conventional radio, without additional hardware.

An apparatus for determining the distance from a transmitter to a receiver is proposed, wherein the transmitter and the receiver are configured to communicate via a radio channel. The apparatus comprises at least one measuring unit configured to measure a received signal strength indicator value and a time-of-flight value of the radio channel. The apparatus further comprises a processing unit configured to compare the measured pair of the received signal strength indicator value and the time-of-flight value with stored pairs of received signal strength indicator values and time-of-flight values, wherein the stored pairs of received signal strength indicator values and time-of-flight values are each associated with a distance of the transmitter to the receiver, and wherein the processing unit is configured to determine the distance of the transmitter to the receiver based on the comparison result.

The invention relates to a method for error evaluation in position determination, comprising time-synchronous recording of first and second position values, wherein the second position values are recorded by a different measuring method than the first position values; forming a first and a second trajectory (A, B) from the first and the second position values respectively; forming differential vectors (D) between first and second position values recorded at the same time; parallel-shifting the second trajectory (B) along a displacement vector (s) such that the amounts of the differential vectors (D) are minimized on average; evaluating the faultiness of the position determination on the basis of one or more amounts of the differential vectors (D) created as a consequence of the parallel shift.

In accordance with a first aspect of the present disclosure, a localization system is provided for determining a geographic location of a movable object, the system comprising: a plurality of anchors, wherein each anchor is configured to receive a broadcasted message through an ultra-wideband communication channel; a processing unit configured to determine the geographic location based on differences between the times of arrival of the broadcasted message at the respective anchors, on relative positions of the anchors and on a predetermined orientation of the movable object.

The techniques disclosed herein include a first device for reading one or more tags in metadata, the first device including one or more processors configured to receive metadata, from a second device, wirelessly connected via a sidelink channel to the first device. The one or more processors may also be configured to read the metadata, received from the second device to extract one or more tags representative of audio content, and identify audio content based on the one or more tags, and output the audio content. The first device may also include a memory, coupled to the one or more processors, configured to store the metadata.

Systems and methods for determining a location of one or more user equipment (UE) in a wireless system can comprise receiving reference signals via a location management unit having two or more co-located channels, wherein the two or more co-located channels are tightly synchronized with each other and utilizing the received reference signals to calculate a location of at least one UE among the one or more UE. Embodiments include multichannel synchronization with a standard deviation of less than or equal 10 ns. Embodiments can include two LMUs, with each LMU having internal synchronization, or one LMU with tightly synchronized signals.

A wireless device (12A) is configured to determine, for each of one or more links (14), one or more characteristics associated with wireless device positioning performance on the link. In some embodiments, the one or more characteristics include one or more of: geometric dilution of precision, GDOP, characteristics associated with the link; or line-of-sight, LOS, characteristics or non-LOS characteristics of the link. Regardless, the wireless device (12A) may also be configured to transmit control signaling (22) indicating the one or more characteristics determined for each of the one or more links (14). Based on this control signaling (22), a network node (16) may adapt positioning reference signal, PRS, configuration on at least one of the one or more links (14).