Frame based listen before talk for radar

    公开(公告)号:US12048006B2

    公开(公告)日:2024-07-23

    申请号:US17305793

    申请日:2021-07-14

    CPC classification number: H04W74/0816 H04W72/0446

    Abstract: Various aspects of the present disclosure generally relate to wireless communication and radar detection. In some aspects, a radar device may perform, at an initial listen before talk (LBT) frame boundary associated with an initial LBT frame of a plurality of LBT frames, an initial LBT procedure, wherein the initial LBT frame has a frame length that is larger than a propagation delay associated with a maximum detectable range associated with the radar device; and transmit a radar signal based at least in part on a successful result of the initial LBT procedure or an additional LBT procedure. Numerous other aspects are provided.

    Pedestrian positioning via vehicle collaboration

    公开(公告)号:US12047846B2

    公开(公告)日:2024-07-23

    申请号:US18168348

    申请日:2023-02-13

    CPC classification number: H04W4/029 G01S5/0027 G01S5/0072 G01S5/0284 H04W4/90

    Abstract: Disclosed are techniques for using ranging signals to determine a position of a pedestrian user equipment (P-UE). In an aspect, a UE receives a plurality of ranging signals transmitted by one or more UEs, measures one or more properties of each of the plurality of ranging signals, and calculates an estimate of the position of the P-UE based on the one or more properties of each of the plurality of ranging signals. In an aspect, the P-UE transmits a plurality of ranging signals, receives a first message and a second message from first and second vehicle UEs (V-UEs), the first and second messages including first and second estimated positions of the P-UE and associated first and second confidences, and calculates an estimate of the position of the P-UE based on the first estimated position, the first confidence, the second estimated position, the second confidence, or a combination thereof.

    Sidelink feedback transmission and feedback resource determination

    公开(公告)号:US12003458B2

    公开(公告)日:2024-06-04

    申请号:US17003738

    申请日:2020-08-26

    CPC classification number: H04L5/0055 H04L5/001 H04W92/18

    Abstract: Methods, systems, and devices for wireless communications are described. A communication device, which may be otherwise known as user equipment (UE), may receive a data transmission and determine a slot to transmit a hybrid automatic repeat request (HARQ) feedback based on the data transmission. The communication device may determine one or more HARQ feedback resources or one or more HARQ feedback resource sets in the slot to transmit the HARQ feedback, where the one or more hybrid automatic repeat request feedback resources or the one or more hybrid automatic repeat request feedback resource sets in the slot comprises a set of frequency resources associated with the slot, and transmit the HARQ feedback using the one or more HARQ feedback resources or the one or more HARQ feedback resource sets in the slot.

    Indicating sidelink connection loss

    公开(公告)号:US11956120B2

    公开(公告)日:2024-04-09

    申请号:US16948662

    申请日:2020-09-28

    CPC classification number: H04L41/0686 H04W72/04 H04W76/27

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a first message identifying a set of UEs comprising one or more other UEs with which the UE is engaging in sidelink communication. The UE may transmit a second message, based at least in part on a determination of a loss of a sidelink connection to a previously-connected UE of the set of UEs, identifying a subset of the set of UEs and indicating the loss of the sidelink connection. Numerous other aspects are provided.

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