SYSTEM AND METHODS OF TIME SYNCHRONIZATION BETWEEN WIRELESSLY CONNECTED DEVICES
    23.
    发明申请
    SYSTEM AND METHODS OF TIME SYNCHRONIZATION BETWEEN WIRELESSLY CONNECTED DEVICES 有权
    无线连接设备之间的时间同步的系统和方法

    公开(公告)号:US20160345277A1

    公开(公告)日:2016-11-24

    申请号:US14934739

    申请日:2015-11-06

    Inventor: Jonathan Segev

    Abstract: An access point (AP), station (STA) and method of providing synchronizing the STA are generally described. The STA may transmit to the AP a Fine Timing Measurement (FTM) request and/or trigger frame. The STA may capture a STA Time Synchronization Function (TSF) value of the time the FTM request/trigger frame is transmitted to the AP as determined by the STA. The AP may determine an AP TSF value of the time the of the FTM request/trigger frame was transmitted by the AP as determined by the AP and transmit at least part of the AP TSF time to the STA in a FTM response frame. The STA may compare the STA TSF value and the AP STA value and adjust the STA TSF dependent on the difference between the AP TSF value and the STA TSF value to synchronize to the AP TSF value.

    Abstract translation: 通常描述接入点(AP),站(STA)以及同步STA的方法。 STA可以向AP发送精确定时测量(FTM)请求和/或触发帧。 STA可以捕获由STA确定的FTM请求/触发帧被发送到AP的时间STA时间同步功能(TSF)值。 AP可以确定AP确定的FTM请求/触发帧的时间的AP TSF值,并且在FTM响应帧中将AP TSF时间的至少一部分发送给STA。 STA可以比较STA TSF值和AP STA值,并根据AP TSF值和STA TSF值之间的差异调整STA TSF,以与AP TSF值同步。

    APPARATUS, SYSTEM AND METHOD OF PERFORMING A TIME OF FLIGHT (ToF) MEASUREMENT
    24.
    发明申请
    APPARATUS, SYSTEM AND METHOD OF PERFORMING A TIME OF FLIGHT (ToF) MEASUREMENT 有权
    执行飞行时间(ToF)测量的装置,系统和方法

    公开(公告)号:US20150350936A1

    公开(公告)日:2015-12-03

    申请号:US14472409

    申请日:2014-08-29

    CPC classification number: H04W24/02

    Abstract: Some demonstrative embodiments include apparatuses, systems and/or methods of performing a Time of Flight (ToF) measurement. For example, a first wireless device may include a radio to communicate a discovery frame with a second wireless device, the discovery frame including an initiator indication to indicate whether a sender of the discovery frame is to be an initiator or a responder of a Time of Flight (ToF) measurement procedure, and availability information to indicate a wireless channel and one or more time intervals; and a controller to perform the ToF measurement procedure with the second wireless device over the wireless channel during the one or more time intervals, the controller be either the initiator or responder of the ToF measurement according to the initiator indication.

    Abstract translation: 一些演示实施例包括执行飞行时间(ToF)测量的装置,系统和/或方法。 例如,第一无线设备可以包括用于与第二无线设备通信发现帧的无线电装置,所述发现帧包括发起者指示,以指示发现帧的发送者是发起者还是响应者的时间 飞行(ToF)测量程序和可用性信息以指示无线信道和一个或多个时间间隔; 以及控制器,用于在所述一个或多个时间间隔期间通过所述无线信道与所述第二无线设备执行所述ToF测量过程,所述控制器是根据所述发起者指示的所述ToF测量的发起者或响应者。

    Trigger frames for range estimation in wireless local area network (WLAN)

    公开(公告)号:US11051284B2

    公开(公告)日:2021-06-29

    申请号:US16467674

    申请日:2017-03-31

    Abstract: Embodiments of an access point (AP), a user station (STA), and a method for range estimation in a wireless network are generally described herein. For example, the AP may encode a common information field of a first trigger frame to include a trigger frame type configured to check the readiness of associated and unassociated STAs. The AP may transmit the first trigger frame to STAs and receive feedback from the STAs. The AP may further encode, based on the feedback, a common information field of a second trigger frame to include one of: a trigger frame type that solicits negotiation packets from associated and unassociated STAs using an association identifier (AID) and a pre-AID; or a trigger frame type that solicits channel sounding packets from associated and unassociated STAs using an AID and a pre-AID. The AP may further transmit the second trigger frame to the STAs.

    Bidirectional location measurement report feedback

    公开(公告)号:US10750467B2

    公开(公告)日:2020-08-18

    申请号:US16234249

    申请日:2018-12-27

    Abstract: This disclosure describes systems, methods, and devices related to a bidirectional location measurement report (LMR) feedback. A responding device may determine a first location measurement report (LMR) feedback type of an initiating device. The responding device may determine a second LMR feedback type of the responding device. The responding device may determine a common availability window, defined by a common start time and a common end time, for an exchange of a first LMR and a second LMR, wherein the common availability window is based on the first LMR feedback type and on the second LMR feedback type. The responding device may cause to send the first LMR to the initiating device during the common availability window. The responding device may identify the second LMR received from the initiating device during the common availability window.

    Location measurement reporting
    27.
    发明授权

    公开(公告)号:US10578732B2

    公开(公告)日:2020-03-03

    申请号:US16440728

    申请日:2019-06-13

    Abstract: Methods, apparatuses, and computer readable media for location measurement reporting in a wireless network are disclosed. An apparatus of an initiator station (ISTA), where the apparatus comprises processing circuitry configured to encode a null data packet announce (NDPA) frame for transmission to a responder station (RSTA), the NDPA frame indicating a sounding sequence number, and encode a first null data packet (NDP) for transmission at a time T1 to the RSTA. The processing circuitry may be further configured to: decode a second NDP, the second NDP received from the RSTA, wherein the second NDP is received at a time T4, and decode a first location measurement report (LMR). The processing circuitry may be further configured to in response to an ISTA-to-RSTA LMR feedback agreement between the RSTA and ISTA indicating the ISTA is to send a second LMR, encode a second LMR.

    SECURITY PROTECTION OF MEASUREMENT REPORT
    28.
    发明申请

    公开(公告)号:US20200021979A1

    公开(公告)日:2020-01-16

    申请号:US16335510

    申请日:2017-10-24

    Abstract: Methods, apparatus, and computer-readable media are described to encode a trigger frame for a second station (STA2). A first sounding frame for the STA2 is generated. The first timestamp is associated with a transmission of the first sounding frame. A second sounding frame from the STA2 based upon the first sounding frame is decoded. The second sounding frame includes a holding time indication associated with a second timestamp and a third timestamp. A fourth timestamp is associated with receiving the second sound frame. The holding time indication is protected. A round-trip time is calculated based upon the first timestamp, the holding time indication, and the fourth timestamp.

    Apparatus, system and method of multi user resource allocation

    公开(公告)号:US10374778B2

    公开(公告)日:2019-08-06

    申请号:US15393329

    申请日:2016-12-29

    Abstract: Some demonstrative embodiments include apparatuses, systems and/or methods of Multi User (MU) resource allocation. For example, an apparatus may include circuitry and logic configured to cause a wireless station to transmit a short feedback trigger frame including a first allocation of opportunities for short feedback from associated stations, and a second allocation of opportunities for short feedback from unassociated stations; to process a plurality of short feedbacks from a plurality of stations according to the first and second allocations, the plurality of short feedbacks to indicate uplink resource requests; based on the plurality of short feedbacks, to transmit a MU trigger frame to allocate uplink resources to the plurality of stations; and to process uplink transmissions from the plurality of stations according to the uplink resources.

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