Various embodiments comprise systems, methods, architectures, mechanisms and apparatus providing a dual-function radar communication (DFRC) system a multiple-input multiple-output (MIMO) radar is configured to have only a small number of its antennas active in each channel use. Probing waveforms are of an orthogonal frequency division multiplexing (OFDM) type. OFDM carriers are divided into two groups, one group that is used by the active antennas in a shared fashion, and another group where each subcarrier is assigned to an active antenna in an exclusive fashion (e.g., private subcarriers). Target estimation is carried out based on the received and transmitted symbols. The system communicates information via the transmitted OFDM data symbols and the pattern of active antennas in a generalized spatial modulation (GSM) fashion. A multi-antenna communication receiver can identify the indices of active antennas via sparse signal recovery methods. The private subcarriers may be used to synthesize a virtual array for high angular resolution, and also for improved estimation on the active antenna indices.

Systems, apparatuses and methods may provide for technology that initiates one or more optical pulses in accordance with a first emission pattern, obtains a second emission pattern in response to one or more of a time-variable trigger or a deviation of one or more received optical reflections from an expected reflection pattern, and initiates one or more optical pulses in accordance with the second emission pattern. Moreover, infrastructure node technology may detect, based on an interference notification from a first sensor platform, a deviation of received optical reflection(s) from an expected reflection pattern, select emission parameter(s) in response to the deviation, and alter a first emission pattern with respect to the selected emission parameter(s) to obtain a second emission pattern.

A computer includes a processor and a memory storing instructions executable by the processor to receive radar data from a radar sensor of a vehicle; demarcate a zone of coverage of the radar sensor, the zone of coverage having an area based on a number of objects indicated by the radar data; and after demarcating the zone of coverage, in response to detecting a newly present object in the zone of coverage, adjust a scanning rate of the radar sensor based on a distance of the newly present object from the radar sensor.

A radio communication terminal (UE1) configured to act as a radar device, comprising a wireless communication chipset (313) including a transmitter (314) and a receiver (315), and logic (310) configured to control the wireless communication chipset to communicate on a radio channel (120) in a wireless communication system; execute radar probing (130) during a probing period, including to transmit a radar signal (140) using the transmitter and sense receive properties of a reflection (150) of the radar signal using the receiver; inhibit transmission of communication signals from the communication terminal during said probing period; and receive communication signals on the radio channel during said probing period.

Systems, methods, and computer-readable storage media for generating and utilizing radar signals with embedded data are disclosed. Data is encoded onto a CPM waveform, which is then combined with a base radar waveform to produce a radar-embedded communication (REC) waveform. Both the CPM waveform and the base radar waveform may have a continuous phase and constant envelope, resulting in the REC waveform having a continuous phase and constant envelope. The changing (e.g., on a pulse-to-pulse basis) nature of the REC waveform causes RSM of clutter which may result in residual clutter after clutter cancellation, decreasing target detection performance of the radar system. In an aspect, various parameters may be utilized to dynamically adjust the performance of the radar system for a particular operating scenario, such as to enhance radar signal processing or enhance data communication capabilities.

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.

Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) (e.g., a vehicle) may determine a configuration, including an offset value for the radar waveform, for transmitting a radar waveform for multiple radar transmitters. The UE may transmit, according to the identified configuration, a first instance of the radar waveform with a first radar transmitter. The UE may also transmit a second instance of the radar waveform with a second radar transmitter. The second instance of the radar waveform may be offset from the first instance of the radar waveform by the offset value. The Offset value may be a time offset, a frequency offset, or both. The UE may identify at least one object, and may filter our interference between the first instance of the radar waveform and the second instance of the radar waveform based on the offset.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) in a vehicle-to-everything (V2X) system may receive configuration information from an assisting node, such as a roadside unit (RSU), for calculating location information for a target UE in the V2X system. The assisting node may reflect one or more radar signals from the UE towards the target, and from the target back towards the UE according to the configuration information. That is, the assisting node may modify one or more waveform parameters of the reflection according to the configuration information. The UE may calculate location information for the target based on the reflection, such as by classifying the target as non-line-of-sight (NLOS) based on modified waveform parameters, location information of the assisting node, or both.

This disclosure, and the exemplary embodiments provided herein, include a system and method for encoding information in a relatively dense and time-varying manner. In exemplary embodiments, a reflector or retroreflector is wrapped around a rotating member, such as a cylinder, (also referred to as “Rotational LIDAR Barcodes”), which encodes relatively longer data messages, as compared to a static barcode, which can be detected by a LIDAR system and decoded from every direction, i.e. bearings angles of 0-360 degrees, even when partially obstructed.

Disclosed herein is a system and method for facilitating estimation of a spatial profile of an environment based on a light detection and ranging (LiDAR) based technique. By repurposing the optical energy for communications needs, the present disclosure facilitates spatial profile estimation by optical means while facilitating free-space optical communication.