Automotive radar systems may employ a reconfigurable connection of antennas to radar transmitters and/or receivers. An illustrative embodiment of an automotive radar system includes: a radar transmitter; a radar receiver; and a digital signal processor coupled to the radar receiver to detect reflections of a signal transmitted by the radar transmitter and to derive signal measurements therefrom. At least one of the radar transmitter and the radar receiver are switchable to provide the digital signal processor with signals from each of multiple combinations of transmit antenna and receive antenna.

Automotive radar systems may employ a reconfigurable connection of antennas to radar transmitters and/or receivers. An illustrative embodiment of an automotive radar system includes: a radar transmitter; a radar receiver; and a digital signal processor coupled to the radar receiver to detect reflections of a signal transmitted by the radar transmitter and to derive signal measurements therefrom. At least one of the radar transmitter and the radar receiver are switchable to provide the digital signal processor with signals from each of multiple combinations of transmit antenna and receive antenna.

For example, an apparatus may include a radar processor to process radar receive (Rx) data, the radar Rx data based on radar signals received via a plurality of Rx antennas of a Multiple-Input-Multiple-Output (MIMO) radar antenna; and to generate radar information by applying an Amplitude Phase Estimation (APES) calculation to the radar Rx data.

There is provided a mmWave RTLS (Real-Time Location Sensing) system for detecting the presence of one or more objects. The system includes multiple anchors. Each anchor includes a mmWave radar subsystem that uses radar algorithms to detect one or more objects and determine the one or more location-based objects characteristics. The location-based object characteristics include one or more of the following: range, direction-of-arrival, velocity, absolute position, or logical position, each determined relative to one or more anchors.

Methods, systems, and devices for cooperative radar sensing in wireless communications are described. A user equipment (UE) may measure one or more radar measurement parameters associated with a radar target, the radar measurement parameters including a set of values and a first time stamp corresponding to the measurement. The UE may receive a report, from a second UE, including a second set of values for the one or more radar measurement parameters associated with the radar target, an identifier associated with the second UE, and a second time stamp corresponding to the second set of values. The UE may generate a combined set of values based on the measured set of values, the second set of values, and the first and second time stamps. The UE may transmit a report to one or more other UEs including the combined set of values.

Methods, systems, and devices for cooperative radar sensing in wireless communications are described. A user equipment (UE) may measure one or more radar measurement parameters associated with a radar target, the radar measurement parameters including a set of values and a first time stamp corresponding to the measurement. The UE may receive a report, from a second UE, including a second set of values for the one or more radar measurement parameters associated with the radar target, an identifier associated with the second UE, and a second time stamp corresponding to the second set of values. The UE may generate a combined set of values based on the measured set of values, the second set of values, and the first and second time stamps. The UE may transmit a report to one or more other UEs including the combined set of values.

A light detection and ranging (LiDAR) device includes at least one illumination source configured to emit illumination light, an optical scanning device disposed in an optical path of the at least one illumination source to redirect the illumination light emitted by the at least one illumination source from the LiDAR device into a three-dimensional (3-D) environment, at least one scanning mechanism configured to rotate the optical scanning device about at least one axis, and at least one controller. The at least one controller is configured to determine a desired scan pattern for the LiDAR device, generate at least one drive waveform corresponding to (i) the desired scan pattern and (ii) a scan line compression profile of the optical scanning device, and operate the at least one scanning mechanism based on the at least one drive waveform to provide the desired scan pattern.

An apparatus comprises an array of vertical-cavity surface-emitting lasers. Each of the vertical-cavity surface-emitting lasers is configured to be a source of light. The apparatus also comprises an optical arrangement configured to receive light from a plurality of the vertical-cavity surface-emitting lasers and to output a plurality of light beams.

This disclosure provides systems, methods and apparatuses, including computer programs encoded on computer storage media, for ranging procedures performed using antenna switching. In one aspect, a device initiating a ranging procedure may transmit a ranging request, which may include antenna switching capabilities of the initiating device, a request for antenna switching by a responding device during the ranging procedure, or both. Ranging signaling may be communicated between the initiating device and the responding device using different transmit antennas, receive antennas, or both. In some implementations, ranging messages transmitted by the responding device may include transmit antenna indices used for transmission of different ranging messages, and receive antenna indices used for reception of different ranging response messages. The initiating device may estimate a range relative to the responding device based on round trip times (RTTs) associated with different antenna pairs used during the ranging procedure.

Resources are configured, by frame/subframe/slot/symbol, for uplink communication components, downlink communication components, radar sensing components, or flexible components. Flexible components are configured by symbol for uplink or downlink communications, radar sensing, or flexible usage. Full, partial or no overlap between resources for uplink, downlink or sidelink communication and resources for radar sensing may be configured. Frequency configuration for radar sensing may be in absolute units or grid units, and waveforms other than OFDM may be used for radar sensing. Configuration may be initiated by a base station in response to explicit or implicit request by a UE for sensing resources. A UE may sense resources within a configured resource pool for availability before using the resources for radar sensing.