Abstract: A receiver includes an ultra-wideband, UWB, communication unit configured to operate in a radar mode and to receive a synchronization signal transmitted by a transmitter, and a synchronization unit operatively coupled to the UWB communication unit. The synchronization unit is configured to estimate a carrier frequency offset from the synchronization signal, derive a reference time from the synchronization signal, and derive a time window for the reception of a radar packet by the UWB communication unit. The time window is derived from the estimated carrier frequency offset and the reference time. A corresponding method of operating a receiver also is disclosed.

Abstract: In a radiofrequency (RF) system with multiple transceivers configured to operate together (e.g., in beamforming applications), phase, delay, gain, or other offsets between individual transceivers can be compensated by pairwise measurements of RF signals transmitted by one active transmitter at a time as received by the receiver of the active transceiver and the receiver of another transceiver.

Abstract: systems and methods include a transmitter with a control unit that is configured to generate a code, including data identifying a plurality of regions and a transmitter-specific cyclic shift scheme. The cyclic shift scheme results in a re-arrangement of the regions (using a change of time offset) that is different (transmitter-specific) for each of the transmitters. The transmitter generates a signal based on the code and transmits the signal via an antenna. The radar system includes a receiver configured to receive an echo of the signal via a second antenna that is reflected from a target and identifies the transmitter from the echo based on the transmitter-specific cyclic shift scheme.

Abstract: A tyre monitoring sensor is disclosed comprising an ultra-wideband, UWB, device, wherein the UWB device is configured to be mounted on a tyre and to be operable in at least a first mode, a second mode, and a third mode; wherein the first mode is a sensing mode, in which the UWB device is operable to determine a value of a physical property of the tyre; wherein the second mode is a communication mode, in which the UWB device is operable to communicate the value to a control unit; wherein the third mode is a ranging mode, in which the UWB device is operable to localise the UWB device relative to a controller node. Associated methods and systems are also disclosed.

Abstract: In accordance with a first aspect of the present disclosure, a communication device is provided, comprising: an ultra-wideband communication unit configured to operate in a first radar mode and in a second radar mode; a distance determination unit configured to determine a distance between the communication device and an external device; a controller configured to switch the ultra-wideband communication unit from the first radar mode into the second radar mode in dependence on the distance determined by the distance determination unit. In accordance with further aspects, another communication device is provided, as well as methods for operating the communication device and other communication device, and a corresponding computer program.

Abstract: A method is provided for estimating a time-of-flight (TOF) in a wireless communication between first and second devices. The method includes receiving a signal, transmitted from the second device, at first and second antennas of the first device. The second antenna is spaced apart from the first antenna on the first device. A difference in arrival time of the received signal at the first antenna and at the second antenna is computed by the first device. A non-line-of-sight (NLOS) signal path of the received signal in a TOF estimation is compensated for using the difference in arrival time of the received signal between the first antenna and the second antenna. In another embodiment, a communications device having multiple antennas is provided that compensates for the NLOS signal path using the method.

Abstract: An ultra-wideband, UWB, receiver module (213) comprising: an antenna for wirelessly receiving UWB signalling from a UWB transmitter module (212) and a processor. The processor is configured to: determine a channel impulse response, CIR, (519) of the wirelessly received UWB signalling, wherein the CIR comprises a plurality of channel taps each having a tap-response-value; identify a predetermined feature (520) in the CIR and an associated channel tap; and based on the channel tap that is associated with the identified feature (520) in the CIR (519), synchronize the UWB receiver module (213) for reception of subsequent UWB signalling.

Abstract: In accordance with a first aspect of the present disclosure, a communication device is provided, comprising: at least two antennas; an ultra-wideband (UWB) communication unit configured to receive UWB frames through said antennas; a controller configured to switch between said antennas such that consecutive UWB frames are received through different ones of said antennas; wherein the controller is further configured to compute channel impulse responses (CIRs) wherein each of said CIRs is based on a different one of said UWB frames. 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.

Abstract: A data frame exchanging communication device that checks an on-air communication between an initiator and at least one responder, wherein either the initiator or the at least one responder is part of the data frame exchanging communication device, for interference of a data frame exchanging interferer device on said on-air communication, and based on determined interference, adapting a transmission scheme of the data frame exchanging communication device in order to minimize said interference.

Abstract: A UWB radar device and method of operating, the radar device: determining determines localization information of at least one UWB target device relative to the UWB radar device and, based on the determined localization information, switching the UWB radar device is switched into a radar mode, wherein an alignment of a beam of the UWB radar device in the radar mode to the at least one UWB target device is done by using the localization information.

Abstract: In accordance with a first aspect of the present disclosure, a communication device is provided, comprising: an ultra-wideband (UWB) transceiver configured to communicate with an external communication device; a processing unit configured to switch the UWB transceiver between different transceiver modes of operation while the UWB transceiver receives or transmits a data frame; wherein the different transceiver modes of operation include a ranging mode, an angle-of-arrival (AoA) mode and/or a radar mode. 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 corresponding computer program is provided.

Abstract: An entry system is provided that includes a radio frequency (RF) communication unit configured to transmit a wake-up signal to an external authentication device, one or more ultra-wideband (UWB) communication nodes configured to operate in a radar mode, wherein the nodes are configured to receive one or more radar signals reflected by an external object when operating in the radar mode, and a processing unit configured to cause the RF communication unit to transmit the wake-up signal if the UWB communication nodes receive the radar signals.

Abstract: In accordance with a first aspect of the present disclosure, a method of detecting a target is conceived, comprising: performing, by a first detection unit, at least one ultra-wideband (UWB) radar operation; generating, by the first detection unit, a first detection output based on a result of the UWB radar operation, wherein said first detection output is indicative of a first target movement; performing, by a second detection unit, at least one UWB ranging operation; generating, by the second detection unit, a second detection output based on a result of the UWB ranging operation, wherein said second detection output is indicative of a second target movement; accepting or rejecting, by a processing unit, the first detection output based on the second detection output. In accordance with further aspects of the present disclosure, a corresponding computer program and a corresponding target detection system are provided.

Abstract: In accordance with a first aspect of the present disclosure, a networkable lighting device is provided, comprising: an ultra-wideband (UWB) communication unit; a mode controller operatively coupled to the UWB communication unit; wherein the mode controller is configured to cause the UWB communication unit to operate in a radar mode; and wherein the UWB communication unit is configured to, when operating in said radar mode, detect at least one living object present within a predefined area around or near the lighting device. In accordance with a second aspect of the present disclosure, a corresponding method of operating a networkable lighting device is conceived. In accordance with a third aspect of the present disclosure, a computer program is provided for carrying out said method.

Abstract: The disclosure relates to determining a carrier phase shift between a first transceiver and a second transceiver, each transceiver comprising a local oscillator for generating a carrier signal, an example method for which comprises: the first transceiver generating and transmitting a first continuous wave carrier signal packet; the second transceiver receiving the first continuous wave carrier signal packet; the second transceiver calculating a first phase correction based on a comparison between the received first continuous wave carrier signal packet and a local oscillator carrier signal at the second transceiver; the second transceiver generating and transmitting a second continuous wave carrier signal packet; the first transceiver receiving the second continuous wave carrier signal packet; the first transceiver calculating a second phase correction based on a comparison between the received second continuous wave carrier signal packet and a local oscillator signal at the first transceiver; and the first t

Abstract: In accordance with an aspect of the present disclosure, a communication system is provided, comprising: a first ultra-wideband (UWB) transmitter configured to be coupled to a first antenna; a second UWB transmitter configured to be coupled to a second antenna; a controller configured to cause the first UWB transmitter to transmit a first packet to an external communication device, wherein the first packet contains a predefined code; wherein the controller is further configured to cause the second UWB transmitter to transmit a second packet to the external communication device, wherein the second packet contains a cyclically shifted version of said predefined code.

Abstract: In accordance with a first aspect of the present disclosure, a communication device is provided, comprising: at least two antennas; an ultra-wideband (UWB) communication unit configured to receive UWB frames through said antennas; a controller configured to switch between said antennas such that consecutive UWB frames are received through different ones of said antennas; wherein the controller is further configured to compute channel impulse responses (CIRs) wherein each of said CIRs is based on a different one of said UWB frames. 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.

Abstract: A system for localizing an ultra-wide band (UWB) apparatus comprises a UWB transceiver that identifies and extracts features of at least one channel impulse response (CIR); and a special-purpose processor that applies a machine learning classification process to the extracted CIR features to localize the UWB apparatus in a vehicle.

Abstract: In accordance with a first aspect of the present disclosure, a system is provided for facilitating detecting an external object, the system comprising: at least one first communication unit configured to transmit and receive one or more first signals; at least one second communication unit configured to transmit and receive one or more second signals; a controller configured to control the first communication unit and the second communication unit, wherein the controller is configured to cause the first communication unit and the second communication unit to operate concurrently and to use the first signals received by the first communication unit and the second signals received by the second communication unit while said first communication unit and second communication unit are operating concurrently for detecting the external object.

Abstract: In accordance with a first aspect of the present disclosure, a system is provided for facilitating detecting an external object, the system comprising: at least one radar device configured to transmit one or more radar signals; a controller configured to control said radar device; wherein the controller is configured to cause the radar device to operate in a first mode in which the radar device transmits a first radar signal for determining one or more communication channel characteristics; wherein the controller is further configured to cause the radar device to operate in a second mode in which the radar device transmits a second radar signal, wherein one or more properties of the second radar signal are based on the communication channel characteristics determined when the radar device operates in the first mode. In accordance with a second aspect of the present disclosure, a corresponding method is conceived for facilitating detecting an external object.