Systems and methods are provided for worker protection system with ultra-wideband (UWB) based anchors. One or more wayside units placed on or near a track may be configured to form a work zone network, based on ultra-wideband (UWB) communications, corresponding to a work zone in an area surrounding or in proximity to the one or more wayside units. When the work zone network is formed, at least one wayside unit of the one or more wayside units may be configured to obtain ranging information to a train traversing the track, based on communications of UWB signals with at least one train-mounted unit deployed on the train, and the one or more wayside units are configured to generate, based on the ranging information, notifications relating to the train and/or the work zone.

The present disclosure relates to an electronic apparatus, a wireless communication method and a computer-readable medium. The electronic apparatus for wireless communication comprises a processing circuit, and the processing circuit is configured to: determine a first position range of a user equipment on the basis of first measurement information from the user equipment and regarding first beam scanning; when the first position range is lower than a predetermined accuracy requirement, determine adjustment of a beam configuration on the basis of the first position range; and determine a second position range of the user equipment on the basis of second measurement information from the user equipment and regarding second beam scanning performed by means of the adjusted beam configuration.

According to an aspect of the invention, there is provided a control system for controlling a projectile, the control system comprising: a plurality of transmitters, wherein each transmitter of the plurality of transmitters is arranged to transmit an electromagnetic wave from a transmission position; a receiver associated with the projectile, the receiver being arranged to receive a plurality of electromagnetic waves transmitted from the plurality of transmitters; a controller associated with the projectile, the controller being arranged to: determine at least one of a position, a velocity or an acceleration of the projectile from transmission positions of the plurality of transmitters and Doppler measurements derived from the received plurality of electromagnetic waves; and generate a control signal for performing an action with the projectile depending on the determined at least one of position, velocity or acceleration of the projectile.

According to an aspect of the invention, there is provided a control system for controlling a projectile, the control system comprising: a plurality of transmitters, wherein each transmitter of the plurality of transmitters is arranged to transmit an electromagnetic wave from a transmission position; a receiver associated with the projectile, the receiver being arranged to receive a plurality of electromagnetic waves transmitted from the plurality of transmitters; a controller associated with the projectile, the controller being arranged to: determine at least one of a position, a velocity or an acceleration of the projectile from transmission positions of the plurality of transmitters and Doppler measurements derived from the received plurality of electromagnetic waves; and generate a control signal for performing an action with the projectile depending on the determined at least one of position, velocity or acceleration of the projectile.

A communication system using vector and scalar potential is disclosed. The system uses field-free potentials signaling for many applications where the absence of shielding effects in sea water, plasma or other dense media due to the fact that the absence of (E,B) fields eliminates the possibility of induced charge and current response in the media being transited.

A method of operating a wireless communication device (102) connectable to a communications network is provided. The communications network includes an access node (101, 101-1, 101-2, 101-3). The method includes: monitoring for a plurality of reference signals (121, 122, 123) of a transmission (351) in a plurality of resources, the transmission being provided by the access node (101, 101-1, 101-2, 101-3); and based on said monitoring: participating in positioning of the wireless communication device (102) depending on an indicator indicative of at least one of a magnitude or a phase of at least one first path component (810) of an impulse response (800, 801) of a radio channel, the at least one first path component being associated with at least one reference signal (121, 122, 123) of the plurality of reference signals (121, 122, 123) of the transmission (351).

A method of operating a wireless communication device (102) connectable to a communications network is provided. The communications network includes an access node (101, 101-1, 101-2, 101-3). The method includes: monitoring for a plurality of reference signals (121, 122, 123) of a transmission (351) in a plurality of resources, the transmission being provided by the access node (101, 101-1, 101-2, 101-3); and based on said monitoring: participating in positioning of the wireless communication device (102) depending on an indicator indicative of at least one of a magnitude or a phase of at least one first path component (810) of an impulse response (800, 801) of a radio channel, the at least one first path component being associated with at least one reference signal (121, 122, 123) of the plurality of reference signals (121, 122, 123) of the transmission (351).

Embodiments include methods, performed by a network node, for providing positioning assistance data to one or more user equipment (UEs) in a wireless network. Such methods include determining an angular resolution of angular positioning assistance data for each particular beam of a plurality of beams transmitted by one or more transmission reception points (TRPs) in the wireless network. Such methods also include transmitting, to one or more UEs, the angular positioning assistance data for the plurality of beams. For each particular beam, the angular positioning assistance data includes a first part having a first resolution and, when the determined angular resolution for the particular beam is greater than the first resolution, a second part having a second resolution that is greater than the first resolution. Other embodiments include complementary methods performed by a UE, as well as network nodes and UEs configured to perform such methods.

A signal measurement method and a communication apparatus to measure a downlink angle of departure (DAOD) more accurately. The method includes: receiving resource configuration information, where the resource configuration information includes configuration information of a first reference signal set, the first reference signal set includes M reference signals, N reference signals in the M reference signals are reference reference signals, M is greater than 1, and N is greater than or equal to 1; receiving the M reference signals; determining N first paths corresponding to the N reference reference signals, and separately determining M*N received powers of the M reference signals on the N first paths; and reporting a measurement result, where the measurement result includes K*N received powers in M*N received powers, K≤M, and the first path is one of a plurality of paths corresponding to a reference reference signal.

The angle of departure (AOD) of directed beams, e.g., beamformed beams, transmitted by one or more base stations, such as a gNB, and the angle of arrival (AOA) of the directed beams received by a UE may be used to improve positioning accuracy by identifying Line Of Sight (LOS) beams and multi-path beams. The differential AOA (DAOA) of a directed beam pair may compared to the differential AOD (DAOD) of the directed beam pair. Matching DAOA and DAOD may be used as an indication that the directed beams in the beam pair are LOS with the UE, whereas a mis-match indicates one or both of the directed beams are multi-path. The location of the UE may be estimated using the measurement information, e.g., AOA, RTT, RSTD, etc., obtained from LOS directed beams.