Implementing confidence metrics in vehicle-to-everything (V2X) communications

    公开(公告)号:US12245037B2

    公开(公告)日:2025-03-04

    申请号:US17490803

    申请日:2021-09-30

    Abstract: Certain aspects of the present disclosure provide techniques for enhancing vehicle operations safety using coordinating vehicle platooning or enhancing platooning safety against location spoofing attacks. In one example, a source user equipment (UE) detects a potential spoofing event associated with location information being altered in an unauthorized manner, the source UE may transmit a request to a platoon control system (PCS) to join a vehicle platoon. In another example, a first UE associated with a lead vehicle in an existing platoon may detect a potential spoofing event associated with location information being altered in an unauthorized manner. The lead vehicle may transmit to a second UE of another vehicle in the platoon an indication of the detection and a request to exchange the respective roles in the platoon. The PCS may also monitor the conditions of the first and the second UEs, and arrange for the platoon reorganization.

    Techniques for beam refinement in vehicle to everything communications systems

    公开(公告)号:US12063668B2

    公开(公告)日:2024-08-13

    申请号:US17480668

    申请日:2021-09-21

    Inventor: Akash Kumar

    CPC classification number: H04W72/51 H04B7/0695 H04W4/40 H04W72/046

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE), such as a vehicular UE, may perform proactive beam management in a vehicle-to-everything (V2X) communications system. In some cases, road conditions may affect V2X connectivity for the V-UE. For example, if the V-UE is using a narrow beam and approaches a road with a steep gradient, the narrow beam may be unable to detect other V-UEs, which could lead to connection loss. Instead, the V-UE may proactively perform beam management or beam refinement to adjust the beam and maintain connectivity. For example, the V-UE may select a wider beam which has greater coverage, or the V-UE may update a direction of the narrow beam to maintain connection with neighboring V-UEs. The V-UE may use onboard sensor and computer vision-based techniques to detect changes to road conditions or its trajectory.

    Systems and methods for positioning enhancements using beam relation crowdsourcing

    公开(公告)号:US11852740B2

    公开(公告)日:2023-12-26

    申请号:US17098189

    申请日:2020-11-13

    Abstract: In a wireless network in which beams are transmitted by base stations, a beam relation database may be produced by crowdsourcing known positions of UEs and associated information related to beams received by the UEs at these positions. The beam information, for example, may include a beam identifier and cell identifier, and may further include measured signal parameters, such as Reference Signal Received Power (RSRP) or Reference Signal Received Quality (RSRQ). The beam relation database may be used by a network or the UE to determine a position of a UE based on beams that are detected by the UE. The position fix may be an initial position fix that may be used to generate assistance data for the UE. Additionally, the beam relation database may be used to identify relevant measurement objects in the assistance data based on beams that are detected by the UE.

    Apparatus and method for positioning enhancements with wake-up signal (WUS) configurations

    公开(公告)号:US11812383B2

    公开(公告)日:2023-11-07

    申请号:US17362618

    申请日:2021-06-29

    CPC classification number: H04W52/0232 H04W8/24 H04W24/10 H04W64/006

    Abstract: During a positioning session, a wake up signal (WUS) configuration for a user equipment (UE) operating in a discontinuous reception (DRX) mode may be adapted to avoid dormant secondary serving cells (SCells) for positioning. The location server, for example, may configure positioning assistance data and scheduling of uplink sounding reference signals (SRS) to exclude SCells that are included in a dormancy list for the UE. The location server, alternatively, may provide to a serving base station supporting a primary serving cell (PCell) for the UE an indication of the SCells to be used for positioning. The SCells may be removed from the dormancy list during the positioning session or may be brought out of dormancy for all or selected monitoring occasions during the positioning session.

    Millimeter wave exposure control during voice calls

    公开(公告)号:US11611365B2

    公开(公告)日:2023-03-21

    申请号:US17093961

    申请日:2020-11-10

    Abstract: Aspects include systems, methods, devices, and non-transitory processor readable storage mediums for reducing excessive millimeter wave (mmW) radio frequency (RF) exposure to a user of a wireless device. Various aspects may enable an RF exposure condition for the wireless device to be detected while the wireless device is operating in a mmW mode during a voice. In some aspects, a mmW carrier quality report may be adjusted to deprioritize mmW in response to determining the RF exposure condition for the wireless device is occurring during the voice call.

    Antenna selection for sounding reference signal antenna switching

    公开(公告)号:US11588600B2

    公开(公告)日:2023-02-21

    申请号:US17248437

    申请日:2021-01-25

    Inventor: Akash Kumar

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may select an antenna for transmitting a New Radio sounding reference signal (SRS) such that antenna resource conflicts with receiving an LTE cell-specific reference signal are minimized based at least in part on an antenna resource configuration. The UE may transmit the SRS on the selected antenna. Numerous other aspects are described.

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