Flow control for wireless devices

    公开(公告)号:US11284301B2

    公开(公告)日:2022-03-22

    申请号:US15953115

    申请日:2018-04-13

    Abstract: Systems and methods are provided for flow control in a wireless communication system. In certain aspects, an apparatus for wireless communications comprises an interface configured to receive, from a wireless node, one or more parameters specifying a memory at the wireless node, and an indication of an amount of free memory space in the memory at the wireless node. The apparatus also comprises a processing system configured to determine a number of data units to be transmitted to the wireless node based on the indication of the amount of free memory space and the one or more parameters, wherein the interface is further configured to output data units for transmission to the wireless node, wherein a number of the data units output for transmission to the wireless node equals the determined number of data units.

    WLAN RADAR
    3.
    发明申请
    WLAN RADAR 审中-公开

    公开(公告)号:US20200150263A1

    公开(公告)日:2020-05-14

    申请号:US16672131

    申请日:2019-11-01

    Abstract: Certain aspects of the present disclosure provide methods and apparatus for enhancing a wireless local area network (WLAN) protocol compliant radar operation. An example apparatus generally includes a processing system configured to generate one or more frames associated with a radar operation, wherein the one or more frames are compliant with at least one WLAN protocol, a first interface configured to output the one or more frames for transmission in one or more directions, and a second interface configured to obtain a reflection of the one or more frames, wherein the processing system is further configured to perform one or more measurements based on the reflection and use the measurements as part of the radar operation.

    Radar-based radio frequency (RF) sensing

    公开(公告)号:US12298379B2

    公开(公告)日:2025-05-13

    申请号:US17584865

    申请日:2022-01-26

    Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for radio frequency (RF) sensing in the millimeter-wave frequency spectrum that can be performed over multiple phases. During a session setup phase, a radar initiator identifies one or more wireless stations (STAs) that are capable of radar ranging and sets up a radar measurement session that includes at least one of the identified STAs. During a measurement negotiation phase, the radar initiator performs a respective beamforming training operation with each STA and indicates, to each STA, one or more parameters associated with the radar measurement session. During a radar measurement phase, the radar initiator transmits radar setup information to, and receives ranging information from, each STA. In some aspects, the radar initiator may perform an object detection operation that indicates a location of an object associated with the ranging information received from each radar STA.

    System for multistatic radar communication

    公开(公告)号:US12174286B2

    公开(公告)日:2024-12-24

    申请号:US17694893

    申请日:2022-03-15

    Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for multistatic radar communications. In one aspect, a wireless communication device may determine a distance and direction of one or more receiving devices. The wireless communication device may transmit, to the one or more receiving devices, timing information indicating a timing relationship between a codeword sequence and one or more pulses. The wireless communication device may transmit a respective codeword of the codeword sequence in the direction of each of the one or more receiving devices. The wireless communication device may further transmit the one or more pulses in a plurality of directions. The wireless communication device may receive feedback from at least one of the one or more receiving devices and determine ranging information about an object based on the feedback and the distance or direction of at least one receiving device.

    Protected sessionless WiFi sensing

    公开(公告)号:US12120515B2

    公开(公告)日:2024-10-15

    申请号:US17211444

    申请日:2021-03-24

    CPC classification number: H04W12/106 H04B7/0456 H04B7/0617 H04W12/08 H04W84/12

    Abstract: This disclosure provides systems, methods, and apparatuses for wireless sensing. In some aspects, a first wireless communication device may receive a first wireless transmission including a transmit (TX) parameter information element (IE). The first wireless communication device may verify the integrity of the TX parameter IE using a message integrity code (MIC) in the first wireless transmission, discarding the first wireless transmission when the MIC does not verify the integrity of the TX parameter IE. The first wireless device may obtain one or more transmission parameters for one or more second wireless communication devices associated with the TX parameter IE. The first wireless communication device may receive a second wireless transmission from one of the second wireless communication devices and obtain one or more wireless sensing measurements associated with the second wireless transmission and the one or more transmission parameters.

    SENSING COORDINATION IN A WIRELESS NETWORK

    公开(公告)号:US20230009140A1

    公开(公告)日:2023-01-12

    申请号:US17373441

    申请日:2021-07-12

    Abstract: In some implementations, an initiator device establishes a measurement session with each of a plurality of responder devices based at least in part on their capabilities. The initiator device negotiates, with each of the responder devices, a respective set of one or more sensing parameters based at least in part on the capabilities of the initiator device and the capabilities of the respective responder device, the respective sets of sensing parameters associated with the responder devices being identified by a unique Measurement Setup identifier (ID). The initiator device performs one or more measurement instances with the responder devices based on the respective sets of sensing parameters, each measurement instance identified by a unique Measurement Instance ID and the respective Measurement Setup ID. The initiator device obtains, from each responder device, one or more measurement reports indicating channel state information (CSI) based on the one or more respective measurement instances.

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