G01S7/006

ANGLE ESTIMATION WITH MULTI-FRAME PROCESSING FOR RADAR ON MOBILE DEVICES
20220413120 · 2022-12-29 ·

An electronic device includes a processor operably connected to a radar transceiver. The processor is configured to transmit, via the radar transceiver, radar signals to detect an object. The processor is also configured to detect the object using a single radar frame or multiple radar frames from the radar signals. The processor is further configured to determine whether to use the single radar frame or the multiple radar frames based on motion of the object for angle identification between the object and the electronic device. Additionally, the processor is configured to identify the angle using the single radar frame based on a determination to use the single radar frame or the multiple radar frames based on a determination to use the multiple radar frames. The processor is also configured to modify radio frequency exposure levels based on the angle of the object relative to the electronic device.

SIDELINK-AIDED RADIO FREQUENCY SENSING

Example aspects include a method, apparatus, and computer-readable medium for sidelink-aided radio frequency (RF) sensing at user equipment (UE) of a wireless communication network, comprising receiving a sensing establishment message associated with a sensing session. The aspects further include receiving one or more sensing measurement information obtained by the one or more sidelink UEs corresponding to the sensing session, or a first sensing outcome information corresponding to the sensing session obtained by one of the one or more sidelink UEs based on the one or more sensing measurement information. Additionally, the aspects include transmitting the one or more sensing measurement information obtained by the one or more sidelink UEs corresponding to the sensing session, or a second sensing outcome information corresponding to the sensing session.

Sensor circuit using orthogonal phase coding
11536823 · 2022-12-27 · ·

A transceiver circuit included in a computer system may include multiple antennas, a transmitter circuit and a receiver circuit. The transmitter circuit may store an identifier number and generate multiple numbers using the stored identifier number. The transmitter circuit may also generate a transmit signal that include multiple pulses, where a. given pulse may include multiple chirps encoded with the multiple numbers. The receiver circuit may receive a reflected version of the transmit signal and generate an output signal using the reflected version of the transmit signal.

METHOD FOR REDUCING INTERFERENCE EFFECTS IN A RADAR SYSTEM
20220404456 · 2022-12-22 ·

The invention describes a method for reducing interference effects in a radar system, which has at least two transceiver units (S1, S2), which are in particular spatially separated from one another, wherein the method comprises the following steps: —a transmission step (VS1), in which a first transmission signal (sigTX1) of the first transceiver unit (S1) is sent and received to and by a second transceiver unit (S2) and a second transmission signal (sigTX2) of the second transceiver unit (S2) is sent and received to and by the first transceiver unit (S1) via a radio channel (T), wherein the transmission signals (sigTX1, sigTX2) are modulated according to an orthogonal frequency multiplex method; and—a pre-correction step (VS2), in which correction values (γ1, γn, γ2) are determined from the received transmission signals (sigTX1, sigTX2) and in particular are exchanged between the transceiver stations (S1, S2), wherein the received transmission signals (sigRX1, sigRX2) are postprocessed on the basis of the correction values (γ1, γn, γ2), so that influences of interference variables, in particular of phase noise and/or a time offset and/or unknown initial phase positions, are reduced.

Target Detection Method and Radar Apparatus
20220404465 · 2022-12-22 ·

A target detection method includes a radar apparatus that performs at least one interference sensing on a plurality of first time domain resources and determines a second time-frequency resource used for target detection in a first time-frequency resource based on a result of the at least one interference sensing. The first time domain resources are a subset of time domain resources corresponding to a time-frequency resource of a first detection apparatus, and the first time-frequency resource is the time-frequency resource of the first detection apparatus.

DEVICE AND METHOD FOR TRANSMITTING DATA

A device for transmitting data includes a transmitter for generating a frequency-modulated output signal. The transmitter includes a phase-locked loop for adjusting an output frequency of the output signal to a carrier frequency, and a coupling circuit for coupling a data stream into the phase-locked loop. The output signal modulated in frequency by the coupled-in data stream has an output frequency variable over time, and the coupling circuit includes a compensation unit, which couples a compensation signal into the phase-locked loop. The compensation signal compensates at least approximately for an adjustment of the output frequency to the carrier frequency carried out by the phase-locked loop.

COMMUNICATION DEVICES AND OPERATING METHODS

A communication device is provided, comprising: an ultra-wideband device configured to establish a communication session with an external communication device; a secure element configured to generate a session key for use in said communication session and an authentication key derived from said session key; a processing unit configured to execute an application; wherein the secure element is further configured to transfer the session key and the authentication key to the UWB device; wherein the UWB device is configured to add, upon or after receiving data for use by said application, a cryptographic tag to said data; wherein the processing unit is configured to receive said data and the cryptographic tag, and to forward said data and cryptographic tag to the secure element; wherein the secure element is configured to verify said cryptographic tag and to return, upon or after a positive verification of the cryptographic tag, a signed confirmation.

PEER-TO-PEER SENSING ASSISTED BY RECONFIGURABLE INTELLIGENT SURFACES
20220400462 · 2022-12-15 ·

In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. In some aspects, the apparatus may be a user equipment (UE) or a component thereof; however, in some other aspects, the apparatus may be a base station or a component thereof. The apparatus may be configured as a wireless node that configures an intermediary apparatus to reflect signals for the wireless node and another wireless node. The apparatus may be further configured to communicate a set of sensing signals with the other wireless node using the intermediary apparatus. The apparatus may be further configured to sense an object based on a set of measurements associated with the set of sensing signals.

POWER EFFICIENT RADAR OPERATION FOR MAXIMUM PERMISSIBLE EXPOSURE COMPLIANCE AND UPLINK POWER REDUCTION REPORTING
20220400446 · 2022-12-15 ·

A method includes obtaining a set of signal quality measurements. The signal quality measurements correspond to reference signals, respectively, from among a plurality of reference signals received at an electronic device. The method includes determining whether a change in amplitude in the set of signal quality measurements satisfies a temporal condition. The method includes in response to a determination that the change in amplitude in the set of signal quality measurements satisfies the temporal condition, triggering the electronic device to perform radar operations to determine whether a location of an object in proximity to the electronic device satisfies a proximity condition. The method includes in response to a determination that the location of the object satisfies the proximity condition, changing a transmission parameter of uplink wireless signals to satisfy a maximum permissible exposure (MPE) of the object to radio frequency energy.

METHOD AND DEVICE FOR PERFORMING UWB RANGING
20220397658 · 2022-12-15 ·

Methods are provided for UWB ranging based on contention-based multiple access. A method performed by a first UWB device includes transmitting an IM for initiating UWB ranging, receiving an AM from a second UWB device within a contention period, transmitting a first RM, receiving a second RM corresponding to the first RM from the second UWB device, and transmitting an FM.