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    Monostatic radar with progressive length transmission
    1.
    发明授权
    Monostatic radar with progressive length transmission 有权

    公开(公告)号：US12298381B2

    公开(公告)日：2025-05-13

    申请号：US17364307

    申请日：2021-06-30

    Applicant: QUALCOMM Incorporated

    Inventor： Sungwoo Park ,  Wooseok Nam ,  Tao Luo ,  Junyi Li ,  Juan Montojo ,  Jing Sun ,  Xiaoxia Zhang ,  Peter Gaal ,  Taesang Yoo ,  Simone Merlin ,  Srinivas Yerramalli ,  John Edward Smee

    IPC: G01S13/56 ,  G01S7/03 ,  G01S7/35 ,  G01S13/02

    Abstract: Monostatic radar with progressive length transmission may be used with half-duplex systems or with full-duplex systems to reduce self-interference. The system transmits a first signal for a first duration and receives a first reflection of the first signal from a first object during a second duration. The system transmits a second signal for a third duration longer than the first duration and receives a second reflection of the second signal from a second object during a fourth duration. The system calculates a position of the first object and the second object based on the first reflection and the second reflection. The first signal, first duration, and second duration are configured to detect reflections from objects within a first distance of the system. The second signal, third duration, and fourth duration are configured to detect reflections from objects between the first distance and a second distance from the system.

    Scaling and quantization for channel state information reporting
    2.
    发明授权
    Scaling and quantization for channel state information reporting 有权

    公开(公告)号：US12132682B2

    公开(公告)日：2024-10-29

    申请号：US18541388

    申请日：2023-12-15

    Applicant: QUALCOMM Incorporated

    Inventor： Stephen Jay Shellhammer ,  Bin Tian ,  Alireza Raissinia ,  Simone Merlin

    IPC: H04B7/06 ,  H04B17/318 ,  H04L5/00 ,  H04L25/02

    CPC classification number: H04L5/0053 ,  H04B17/318

    Abstract: Methods, systems, and devices for wireless communications are described. A station (STA) may receive a null data packet (NDP) on a plurality of subcarriers, and the STA may generate a channel state information (CSI) matrix for each subcarrier of the plurality of subcarriers. After generating a CSI matrix for a subcarrier, such as at least one subcarrier, the STA may scale each value in the CSI matrix using a power-of-two value to minimize complexity. Specifically, instead of scaling each value in the CSI matrix to a value between zero and one using divisions (for example, which may be computationally expensive), the STA may use shifting to scale each value in the CSI matrix. The STA may then quantize the scaled values in the CSI matrix for reporting, and the STA may transmit the quantized, scaled values in the CSI matrix in a CSI report.

    Scaling and quantization for channel state information reporting
    8.
    发明授权
    Scaling and quantization for channel state information reporting 有权

    公开(公告)号：US11888593B2

    公开(公告)日：2024-01-30

    申请号：US17382145

    申请日：2021-07-21

    Applicant: QUALCOMM Incorporated

    Inventor： Stephen Jay Shellhammer ,  Bin Tian ,  Alireza Raissinia ,  Simone Merlin

    IPC: H04B7/06 ,  H04L25/02 ,  H04L5/00 ,  H04B17/318

    CPC classification number: H04L5/0053 ,  H04B17/318

    Abstract: Methods, systems, and devices for wireless communications are described. A station (STA) may receive a null data packet (NDP) on a plurality of subcarriers, and the STA may generate a channel state information (CSI) matrix for each subcarrier of the plurality of subcarriers. After generating a CSI matrix for a subcarrier, such as at least one subcarrier, the STA may scale each value in the CSI matrix using a power-of-two value to minimize complexity. Specifically, instead of scaling each value in the CSI matrix to a value between zero and one using divisions (for example, which may be computationally expensive), the STA may use shifting to scale each value in the CSI matrix. The STA may then quantize the scaled values in the CSI matrix for reporting, and the STA may transmit the quantized, scaled values in the CSI matrix in a CSI report.

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