Cooperative vehicular radar sensing

    公开(公告)号:US12196877B2

    公开(公告)日:2025-01-14

    申请号:US17246308

    申请日:2021-04-30

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an indication of a configuration to perform cooperative radar sensing. The configuration may indicate resources for the first UE to use to communicate radar measurement reports. The UE may receive, from another UE on the identified resources, a radar measurement report that includes values for one or more radar measurement parameters for a first radar target and a time stamp associated with the values. The UE may identify a second set of values for the radar measurement parameters (e.g., its own measurements, or measurements received from a third UE in another radar measurement reports). The UE may generate a combined set of values for the radar measurement parameters for each time stamp by combining the first set of values and the second set of values.

    Tone reservation techniques for sidelink communications

    公开(公告)号:US12185318B2

    公开(公告)日:2024-12-31

    申请号:US17682192

    申请日:2022-02-28

    Abstract: Methods, systems, and devices for wireless communications are described. A wireless communications system may support tone reservation techniques in sidelink communications. A first user equipment (UE) may identify one or more subcarriers of a plurality of subcarriers, the one or more subcarriers associated with a tone reservation signal for sidelink. The first UE may select one or more symbols for transmitting the tone reservation signal on the one or more subcarriers. The first UE may transmit, to a second UE, sidelink signaling over the plurality of subcarriers, wherein the sidelink signaling includes the tone reservation signal over the one or more subcarriers during the one or more symbols. The second UE may receive the sidelink signaling and identify the tone reservation signal during the one or more symbols associated with the one or more subcarriers. The second UE may decode the sidelink signaling based on identifying the tone reservation signal.

    Channel reporting for reconfigurable surfaces

    公开(公告)号:US12177144B2

    公开(公告)日:2024-12-24

    申请号:US17362613

    申请日:2021-06-29

    Abstract: Methods, systems, and devices for wireless communications are described. Repetitions of a reference signal may be transmitted by a first device. In some examples, the repetitions may be quasi-colocated with one another, share an antenna port, or both. The repetitions of the reference signal may arrive at a reconfigurable surface. The reconfigurable surface may apply a modulation sequence to the repetitions of the reference signal and output modulated repetitions of the reference signal in a direction based on a reflective state of the reconfigurable surface. A signal including the modulated repetitions of the reference signal may be received by a second device and combined with the modulation sequence used by the reconfigurable surface to obtain a combined signal. The combined signal may be used to determine, for the reconfigurable surface, information about a channel between the first device and the second device.

    Signal shaping with canceled tones
    26.
    发明授权

    公开(公告)号:US12170989B2

    公开(公告)日:2024-12-17

    申请号:US17645262

    申请日:2021-12-20

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a cancellation indication that indicates a set of resources in which to cancel an uplink or sidelink communication. The UE may transmit a combined signal including a data signal and a cancellation signal. The UE, to transmit the combined signal, may transmit the data signal on one or more subcarriers other than subcarriers included in the set of resources indicated by the cancellation indication, and transmit the cancellation signal on a set of cancellation subcarriers for performing signal shaping of the data signal. Numerous other aspects are described.

    Direct current (DC) tone indication in sidelink

    公开(公告)号:US12170988B2

    公开(公告)日:2024-12-17

    申请号:US17493624

    申请日:2021-10-04

    Abstract: Aspects relate to direct current (DC) tone indication on the sidelink A wireless communication device (e.g., a UE) may transmit an indication of its sidelink DC tone to one or more other UEs via respective sidelinks. In an example, a transmitting UE may transmit an indication of its sidelink DC tone within second stage sidelink control information included within a data region of a slot. A receiving UE may further transmit an indication of its sidelink DC tone to a transmitting UE over a sidelink between the transmitting UE and receiving UE or a base station in wireless communication with the transmitting and receiving UEs may provide the indication of the sidelink DC tone of the receiving UE to the transmitting UE.

    Intelligent reflective surface aided positioning by convex optimization

    公开(公告)号:US12167364B2

    公开(公告)日:2024-12-10

    申请号:US18049250

    申请日:2022-10-24

    Abstract: Disclosed is a method for wireless communication for determining the position of a wireless node. The method comprises receiving a set of reference signals from a set of at least four positioning devices, wherein the positioning devices are not arranged in a single plane. A signal propagation delay of each one of the set of reference signals is determined and a position of each one of the set of positioning devices is obtained. A convex localization problem is solved for the wireless node based at least in part on the determined signal propagation delay of each one of the set of reference signals and the position of each one of the set of positioning devices. The position of the wireless node is determined based at least in part on solving of the convex localization problem.

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