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    Cross-subband power reservation signal
    31.
    发明授权
    Cross-subband power reservation signal 有权

    公开(公告)号：US12063639B2

    公开(公告)日：2024-08-13

    申请号：US17374814

    申请日：2021-07-13

    Applicant: QUALCOMM Incorporated

    Inventor： Chih-Hao Liu ,  Jing Sun ,  Yisheng Xue ,  Xiaoxia Zhang

    IPC: H04W72/044 ,  H04W72/0446 ,  H04W72/20

    CPC classification number: H04W72/0473 ,  H04W72/0446 ,  H04W72/20

    Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may receive, from a second UE, a control message that indicates a duration of time the second UE has reserved at least a first subchannel of a first subband of a set of shared spectrum subbands. The duration of time may include a quantity of time periods. The first UE may transmit, during a time period of the quantity of time periods and in a second subchannel of the first subband, a power reservation signal that indicates a transmission power associated with the first UE beginning transmission to a third UE in a second subband of the set of shared spectrum subbands and partway through the time period. The first UE may transmit signaling to the third UE in the second subband partway through the time period and after transmitting the power reservation signal.

    TECHNIQUES FOR INDICATING BACKSCATTERING TIMING
    32.
    发明公开
    TECHNIQUES FOR INDICATING BACKSCATTERING TIMING 审中-公开

    公开(公告)号：US20240259090A1

    公开(公告)日：2024-08-01

    申请号：US18160567

    申请日：2023-01-27

    Applicant: QUALCOMM Incorporated

    Inventor： Xiaojie Wang ,  Jing Sun ,  Xiaoxia Zhang ,  Junyi Li

    IPC: H04B7/22 ,  H02J50/20 ,  H04W56/00

    CPC classification number: H04B7/22 ,  H02J50/20 ,  H04W56/001

    Abstract: Methods, systems, and devices for wireless communication are described. In some examples, an energy transfer device may indicate timing information for backscattering a signal. The energy transfer device may transmit, to an energy harvesting device, a message including timing information that indicates when the energy harvesting device is to begin backscattering of a wireless signal. The energy transfer device may transmit the wireless signal. The energy harvesting device may monitor for and receive the wireless signal based on the message. The energy harvesting device may transmit a backscattered signal based on application of a backscattering function to the wireless signal in accordance with the timing information.

    LOCAL LIGHT BIASING FOR SILICON PHOTOMULTIPLIER-BASED OPTICAL WIRELESS COMMUNICATION
    34.
    发明公开
    LOCAL LIGHT BIASING FOR SILICON PHOTOMULTIPLIER-BASED OPTICAL WIRELESS COMMUNICATION 审中-公开

    公开(公告)号：US20240235691A1

    公开(公告)日：2024-07-11

    申请号：US18151229

    申请日：2023-01-06

    Applicant: QUALCOMM Incorporated

    Inventor： Yisheng Xue ,  Karoly Becze ,  Jing Sun ,  Xiaoxia Zhang ,  Junyi Li ,  Morteza Soltani ,  Deepu Alex ,  Jason Bush

    IPC: H04B10/60 ,  H04B10/11

    CPC classification number: H04B10/60 ,  H04B10/11

    Abstract: This disclosure provides systems, methods, and devices for wireless communication that support local light biasing for silicon photomultiplier (SiPM)-based photodetectors used in optical wireless communication (OWC). In a first aspect, a photodetector may include a silicon photomultipier (SiPM) having an input sensor configured to detect a light signal and an output interface configured to produce an output signal proportional to an intensity of the light signal detected at the input sensor, and a controllable light source positioned to emit a biasing light signal within a field of view of the input sensor, wherein the controllable light source is configured to emit the biasing light signal within a sensitivity range of the SiPM. When such photodetector is implemented in an OWC receiver, an analysis of the output signal allows the OWC receiver to adjust the biasing light at the controllable light source. Other aspects and features are also claimed and described.

    BACKSCATTER-BASED POSITIONING
    40.
    发明公开
    BACKSCATTER-BASED POSITIONING 审中-公开

    公开(公告)号：US20240175963A1

    公开(公告)日：2024-05-30

    申请号：US18060418

    申请日：2022-11-30

    Applicant: QUALCOMM Incorporated

    Inventor： Mohammad Tarek Fahim ,  Srinivas Yerramalli ,  Xiaojie Wang ,  Jing Sun

    IPC: G01S5/00 ,  H04L5/00 ,  H04W24/10

    CPC classification number: G01S5/0036 ,  H04L5/0051 ,  H04W24/10

    Abstract: This disclosure provides systems, methods, and devices for wireless communication that support backscatter-based positioning. In a first aspect, a method of wireless communication includes receiving multiple measurement reports associated with a tag device. The multiple measurement including, for each transmission/reception point (TRP) of multiple TRPs, a measurement report of the TRP. The method further includes determining, based on the multiple measurement reports, a position of the tag device having a tag delay that is unknown to a network entity.

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