Roadside user alert techniques based on location accuracy

    公开(公告)号:US12004047B2

    公开(公告)日:2024-06-04

    申请号:US17545346

    申请日:2021-12-08

    CPC classification number: H04W4/029 G08G1/166 H04W4/06 H04W72/51

    Abstract: Methods, systems, and devices for wireless communications are described in which a vulnerable road user (VRU) user equipment (UE) indicates to a user whether a current position accuracy is sufficient or insufficient for approaching vehicles to determine if they present a hazard to the VRU. The position accuracy may be based on an accuracy threshold that is configured at the UE, such as by a serving base station or a road side unit (RSU). The accuracy threshold may be configured via common or dedicated signaling, through application-layer signaling, or may be pre-configured in the UE. When the VRU UE position accuracy exceeds the specified threshold for a particular interval of time, the UE may inform the user that approaching vehicles will be unable to determine their location with enough accuracy to take evasive maneuvers.

    TECHNIQUES FOR PRIMARY SIDELINK CARRIER UPDATING IN SIDELINK CARRIER AGGREGATION

    公开(公告)号:US20240172004A1

    公开(公告)日:2024-05-23

    申请号:US18057608

    申请日:2022-11-21

    CPC classification number: H04W24/04 H04W24/08 H04W92/18

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a first set of reference signals via a primary sidelink carrier of a sidelink carrier aggregation configuration and a second set of reference signals via one or more secondary sidelink carriers of the sidelink carrier aggregation configuration. The UE may receive, based on the reference signals, a measurement message indicating measurements for a set of beams corresponding to a secondary sidelink carrier of the sidelink carrier aggregation configuration based on a beam failure instance for the primary sidelink carrier. The UE may transmit, via Layer 1 signaling or Layer 2 signaling, a control message indicating to switch the primary sidelink carrier to the set of beams based on the measurements for the set of beams and the beam failure instance for the primary sidelink carrier.

    Channel reporting for energy harvesting at a device

    公开(公告)号:US11990762B2

    公开(公告)日:2024-05-21

    申请号:US17331458

    申请日:2021-05-26

    CPC classification number: H02J50/001 H02J50/20 H02J50/40 H04B17/309 H04L1/0009

    Abstract: Methods, systems, and devices for wireless communications are described. A device may include an energy harvesting circuit configured to convert radio frequency energy associated with signals detected by the device to direct current (DC) energy for storage at the device. The device may additionally include a signal decoding circuit configured to decode the signals detected by the device to identify transmissions from other devices in the wireless communications system. The device may rely on power splitting or time switching to direct radio frequency energy to both the energy harvesting circuit and signal decoding circuit of the device. The device may employ various methods for channel estimation, channel reporting, and communications with another device based on utilizing power splitting or time switching to both perform energy harvesting and signal decoding.

    Sidelink groupcast beam training
    295.
    发明授权

    公开(公告)号:US11985647B2

    公开(公告)日:2024-05-14

    申请号:US17072024

    申请日:2020-10-15

    CPC classification number: H04W72/046 H04L1/1607 H04W72/23 H04W72/30

    Abstract: Methods, systems, and devices for sidelink groupcast communications are described. A user equipment (UE) may transmit a beam training request to a base station to determine beams for use with other UEs in a sidelink groupcast communications group. The base station may receive the beam training request, identify wireless resources that a group of UEs may use to perform beam training, and may transmit a beam training grant to each UE of the group of UEs. The UE may transmit a number of training beams using the wireless resources provided in the beam training grant, and the other UEs may measure received signals on the wireless resources to identify one or more beams. Each UE may provide a beam training report to the base station. The base station, based on the beam training reports, may determine beams and resources for use in the groupcast sidelink communications.

    Sidelink positioning reference signal configuration

    公开(公告)号:US11974335B2

    公开(公告)日:2024-04-30

    申请号:US17124903

    申请日:2020-12-17

    CPC classification number: H04W76/10 H04L5/0048 H04W72/56 H04W92/18

    Abstract: A first user equipment includes: an interface configured to send and receive signals wirelessly; and a processor configured to: establish a sidelink connection with a second user equipment; exchange, using the sidelink connection, sidelink information with the second user equipment to at least one of: transmit, via the interface to the second user equipment, first SL PRS-related data (sidelink positioning reference signal related data) including at least one of first SL PRS assistance data or first SL PRS configuration data; or receive, via the interface from the second user equipment, second SL PRS-related data including at least one of second SL PRS assistance data or second SL PRS configuration data; and exchange, via the interface with the second user equipment using the sidelink connection, one or more sidelink positioning reference signals in accordance with at least one of the first SL PRS-related data or the second SL PRS-related data.

    Sidelink carrier aggregation for beamforming and pathloss reference signals

    公开(公告)号:US11943769B2

    公开(公告)日:2024-03-26

    申请号:US17391543

    申请日:2021-08-02

    CPC classification number: H04W72/20 H04L5/0053

    Abstract: Aspects relate to mechanisms for wireless communication devices to update transmission configuration indicator states (TCI-states), spatial relation (SR) indicators (SRIs), or pathloss reference signals (PL-RSs) for a group of two or more component carriers (CCs) for multi-component carrier communication. A radio access network (RAN) node may generate a message indicating one or more TCI-states, one or more SRs, or one or more PL-RSs to utilize for multi-CC communication. The message may include an index identifying a group of two or more CCs of a plurality of access CCs or a plurality of sidelink CCs associated with the one or more TCI-states, the one or more SRs, or the one or more PL-RSs. A user equipment (UE) may receive the message and update the one or more TCI-states, the one or more SRs, or the one or more PL-RSs for the group of two or more CC for the multi-CC communication based on the message.

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