An electronic device and an operation method of the electronic device for transceiving data through ultra-wideband (UWB) in a wireless communication system are provided. The operation method includes broadcasting or multicasting, by the electronic device, a ranging start message including first data; receiving, by the electronic device from another electronic device, a ranging response message including second data; and broadcasting or multicasting, by the electronic device, a ranging final message including third data.

A system to provide circadian-friendly lighting for nighttime hospital care comprising a lighting module and a transmitter tag that interface wirelessly wherein the lighting module comprises red-shifted light spectra, which is proven to be less disruptive to melatonin production than current blue-shifted hospital lighting; wherein the light output of the devices is modulated by the proximity of a tag to the device, with light intensity increasing with closer proximity between these two components and decreasing with increased distance, thereby providing hands-free lighting to caregivers in the specific locations where they need light to perform care tasks.

In accordance with a first aspect of the present disclosure, a communication device is provided, comprising: an ultra-wideband (UWB) communication unit configured to execute a UWB ranging session with an external communication device; a further communication unit configured to set up a secure communication channel with the external communication device; a processing unit configured to carry out a transaction through the further communication unit in dependence on a result of the UWB ranging session; wherein the processing unit is further configured to wrap said transaction within the secure communication channel. In accordance with a second aspect of the present disclosure, a corresponding method of operating a communication device is conceived. In accordance with a third aspect of the present disclosure, a computer program is provided for carrying out said method.

A radar system processes signals in a flexible, adaptive manner to determine range, Doppler (velocity) and angle of objects in an environment. The radar system processes the received signal to achieve different objectives depending on one or more of a selected range resolution, a selected velocity resolution, and a selected angle of arrival resolution, as defined by memory requirements and processing requirements. The system allows improved resolution of range, Doppler and/or angle depending on the memory requirements and processing requirements. The system also adapts to changing environmental conditions including interfering radio signals.

A communication device includes: a plurality of wireless communication sections, each of which is configured to wirelessly receive a signal from another communication device; and a control section configured to perform a detection process of detecting specific elements with regard to a plurality of correlation computation results, each of which is obtained by correlating a first signal that is transmitted from the other communication device and each of second signals at the designated interval and includes a correlation value indicating magnitude of correlation between the first signal and the second signal as an element obtained at the designated interval, and control a change process of treating a wireless communication section having earliest time corresponding to the specific element as a first wireless communication section among the plurality of wireless communication sections, treating the other wireless communication section as a second wireless communication section among the plurality of wireless communication sections.

A communication device includes: a plurality of wireless communication sections, each of which is configured to wirelessly receive a signal from another communication device; and a control section configured to detect a specific element in chronological information based on respective pulse signals received by the plurality of wireless communication sections, on the basis of respective pieces of chronological information including, as elements related to time, information that chronologically changes and that is obtained when the plurality of wireless communication sections receive the respective pulse signals transmitted from the other communication device, verify whether each of a plurality of the detected specific elements is based on the pulse signal coming through a shortest path, and estimate an angle from which the pulse signal has come while using axes extending from reference point, on the basis of the plurality of specific elements that are verified as elements based on the pulse signals.

An electronic device, which performs ranging by using ultra wide band (UWB) communication, and an operating method of the electronic device, is provided. The operating method includes a first electronic device performing operations including transmitting a ranging control message including block striding information to a second electronic device, determining whether to perform hopping based on a result of transmitting the ranging control message, determining a hopping round value based on a result of determining whether to perform the hopping and the block striding information, and performing ranging with the second electronic device based on the block striding information and the hopping round value.

Examples of techniques for vital train tracking using an ultra-wideband ranging system are disclosed. The system includes a train disposed on a track, the train having at least two onboard UWB beacons configured to broadcast a unique beacon identification number. The system also includes a plurality of wayside UWB beacons disposed along the track, a subset of the plurality of wayside UWB beacons being connected to a wayside communications network, wherein at least two of the plurality of wayside UWB beacons are configured to receive the unique beacon identification number. The system also includes a central computer in communication with the wayside communications network, wherein the central computer is configured to determine a position of the train on the track based at least in part upon known location of the at least two wayside UWB beacons.

An electronic device, which performs ranging by using ultra wide band (UWB) communication, and an operating method of the electronic device, is provided. The operating method includes a first electronic device performing operations including transmitting a ranging control message including block striding information to a second electronic device, determining whether to perform hopping based on a result of transmitting the ranging control message, determining a hopping round value based on a result of determining whether to perform the hopping and the block striding information, and performing ranging with the second electronic device based on the block striding information and the hopping round value.

An electronic device is provided. The electronic device includes a communication circuit, an antenna, a wireless charging coil, a positioning sensor circuit, and a processor. The communication circuit may connect communication with a remote input device and a wearable device. The antenna may transmit/receive a signal with respect to the remote input device and the wearable device. The wireless charging coil may detect an attachment and detachment of the remote input device and transmit/receive an electromagnetic signal with respect to the remote input device. The positioning sensor circuit may measure a distance to the remote input device. The processor may determine an attachment and detachment of the remote input device, based on the electromagnetic signal, and recognizing the distance to the remote input device. The processor may provide the wearable device with a remote notification signal based on the distance to the remote input device.