METHOD, APPARATUS, AND SYSTEM FOR WIRELESS SENSING BASED ON LINKWISE MOTION STATISTICS

    公开(公告)号:US20220299619A1

    公开(公告)日:2022-09-22

    申请号:US17838244

    申请日:2022-06-12

    IPC分类号: G01S13/00 G01S13/56

    摘要: Methods, apparatus and systems for wireless sensing based on linkwise motion statistics (link-MS) are described. In one example, a described method comprises: determining a plurality of heterogeneous wireless devices of a wireless sensing system in a venue; determining a plurality of device-links each of comprises two of the heterogeneous wireless devices, one functioning as a transmitter and the other functioning as a receiver; for each respective device-link of the plurality of device-links, transmitting a respective wireless signal from a respective transmitter of the respective device-link through a wireless multipath channel of the venue, wherein the wireless multipath channel is impacted by a motion of an object in the venue, receiving the respective wireless signal by a respective receiver of the respective device-link through the wireless multipath channel, wherein the respective received wireless signal differs from the respective transmitted wireless signal due to the wireless multipath channel of the venue and the motion of the object, obtaining a respective time series of channel information (TSCI) of the wireless multipath channel based on the respective received wireless signal of the respective device-link, computing a respective link-MS for the respective device-link based on the respective TSCI; performing a sensing task associated with the motion of the object based on at least one of: all the TSCI or all the link-MS; and computing a location in the venue associated with the sensing task based on all the link-MS.

    METHOD, APPARATUS, AND SYSTEM FOR WIRELESS MICRO MOTION MONITORING

    公开(公告)号:US20210311166A1

    公开(公告)日:2021-10-07

    申请号:US17352185

    申请日:2021-06-18

    摘要: Methods, apparatus and systems for wirelessly monitoring a micro motion of an object are described. In one example, a described system comprises: a transmitter configured for transmitting a first wireless signal through a wireless multipath channel of a venue; a receiver configured for receiving a second wireless signal through the wireless multipath channel; and a processor. The second wireless signal differs from the first wireless signal due to the wireless multipath channel and a motion of an object in the venue. The processor is configured for: obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the second wireless signal, wherein each channel information (CI) of the TSCI comprises N1 CI components; selecting N2 CI components from the N1 CI components based on a first analysis of the N1 CI components; computing a micro-motion (MM) statistics based on the N2 selected CI components and the first analysis; monitoring the motion of the object based on a second analysis of the MM statistics; performing a task based on the first analysis and the second analysis; and generating a response based on the task, the first analysis and the second analysis.

    METHOD, APPARATUS, AND SYSTEM FOR WIRELESS MONITORING WITH FLEXIBLE POWER SUPPLY

    公开(公告)号:US20210136681A1

    公开(公告)日:2021-05-06

    申请号:US17149667

    申请日:2021-01-14

    摘要: Methods, apparatus and systems for power supply design of a wireless monitoring system or device are described. In one example, an accessory of a wireless monitoring system is described. The accessory comprises at least one physical attachment feature attaching the accessory to at least one of: a first wireless device in the wireless monitoring system or a second wireless device in the wireless monitoring system. The first wireless device is configured for transmitting a first wireless signal through a wireless multipath channel of a venue. The second wireless device is configured for receiving a second wireless signal through the wireless multipath channel. The second wireless signal differs from the first wireless signal due to the wireless multipath channel that is impacted by a motion of an object in the venue. The wireless monitoring system comprises a processor configured for: obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the second wireless signal, and monitoring the motion of the object in the venue based on the TSCI.

    METHOD, APPARATUS, AND SYSTEM FOR WIRELESS SENSING MEASUREMENT AND REPORTING

    公开(公告)号:US20240125915A1

    公开(公告)日:2024-04-18

    申请号:US18395537

    申请日:2023-12-23

    IPC分类号: G01S13/74 H04W4/38

    CPC分类号: G01S13/74 H04W4/38 G01S7/006

    摘要: Methods, apparatus and systems for wireless sensing are described. In one example, a described system in a wireless data communication network comprises: a transmitter configured to transmit a time series of at least one wireless sounding signal (WSS) based on a standard wireless network protocol associated with the wireless data communication network, and a receiver. The wireless data communication network comprises a physical (PHY) layer, a medium access control (MAC) layer, and at least one higher layer. The receiver is configured to: receive the time series of at least one WSS (TSWSS) based on the standard wireless network protocol through a wireless channel of a venue, and perform a plurality of wireless sensing measurements based on the received TSWSS to obtain sensing measurement results based on the standard wireless network protocol. The PHY layer or the MAC layer of the receiver provides the sensing measurement results locally to the at least one higher layer of the receiver based on the standard wireless network protocol. The sensing measurement results are available to the at least one higher layer of the receiver for performing a sensing-based task based on the sensing measurement results.