RF-sensing-based human identification using combined gait and shape recognition

    公开(公告)号:US12101691B2

    公开(公告)日:2024-09-24

    申请号:US17659602

    申请日:2022-04-18

    CPC classification number: H04W4/029 G01S5/0246 G01S5/0273 G01S5/0294

    Abstract: In some implementations, a method may comprise obtaining channel state information (CSI) data corresponding to a set of RF signals received by one or more receiving devices, wherein: the set RF signals comprises two or more reflected RF signals successively received by the one or more receiving devices after being reflected from a person, and the two or more reflected RF signals are received by the one or more receiving devices over a period of time. The method may further comprise determining an identity of the person based at least in part on an observed gait of the person and an observed shape of the person, wherein the observed gait of the person and the observed shape of the person are determined based at least in part on the CSI data. The method may further comprise outputting an indication of the determined identity of the person.

    Content transfer using radio frequency sensing

    公开(公告)号:US11909835B2

    公开(公告)日:2024-02-20

    申请号:US17478482

    申请日:2021-09-17

    CPC classification number: H04L67/535 H04L67/52

    Abstract: Disclosed are systems and techniques for transferring device content using radio frequency (RF) sensing. For instance, a first wireless device can identify a first user of the first wireless device based on a first radio frequency (RF) signature associated with the first user. The first wireless media device can determine a disengagement of the first user from the first wireless media device. In response to the disengagement, content information associated with usage of the first wireless device by the first user can be captured.

    UPLINK MULTIPLE ACCESS SOUNDING SEQUENCES
    87.
    发明公开

    公开(公告)号:US20230319882A1

    公开(公告)日:2023-10-05

    申请号:US17707772

    申请日:2022-03-29

    CPC classification number: H04W74/0816 H04W72/121 H04W74/06 H04W72/044

    Abstract: Methods, systems, and devices for wireless communication are described. A first wireless communications device may transmit, to one or more second wireless communications devices, a first message that triggers transmission of a second message by each of the one or more second wireless communications devices, the first message allocating to each of the one or more second wireless communications devices a respective frequency-based resource unit for transmission of the second message, each of the respective frequency-based resource units spanning a portion of a channel bandwidth of a channel. The first wireless communications device may perform channel sensing measurements on the second message received from each of the one or more second wireless communications devices. The first wireless communications device may estimate the channel based on the channel sensing measurements performed on the respective second messages received on the respective frequency-based resource units.

    INDOOR POSITIONING WITH FINE TIME MEASUREMENT

    公开(公告)号:US20230123087A1

    公开(公告)日:2023-04-20

    申请号:US17451565

    申请日:2021-10-20

    Abstract: Disclosed are techniques for wireless communication. In an aspect, a first station (STA) may receive a first packet from a second STA at a first time-of-arrival of the first packet. The first STA may activate a strobe signal to store first sensor data at the first time-of-arrival, wherein the first sensor data corresponds to a sensor output of one or more sensors of the first STA at the first time-of-arrival, wherein the one or more sensors include an accelerometer, a gyroscope, a magnetometer, or any combination thereof.

    SOUNDING OPERATIONS FOR RADIO-FREQUENCY (RF) SENSING

    公开(公告)号:US20220345187A1

    公开(公告)日:2022-10-27

    申请号:US17238190

    申请日:2021-04-22

    Abstract: This disclosure provides methods, devices and systems for radio frequency (RF) sensing in wireless communication systems. In some implementations, a transmitter device transmits sounding sequences configured for channel estimation over a wireless channel to a receiver device. The transmitter device also transmits or receives non-sounding frames associated with a channel report of the receiver device. The transmitter device transmits a frame soliciting the channel report from the receiver device. The transmitter device receives the channel report, which may include channel state information (CSI) of the wireless channel responsive to at least the sounding sequences. Some types of channel reports may take longer to generate than other types of channel reports. Transmitting or receiving the non-sounding frames during the time period may prevent other devices from accessing the wireless channel when the receiver device needs additional time to generate a certain type of channel report.

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