APPARATUS, SYSTEM AND METHOD OF PERFORMING A TIME OF FLIGHT (ToF) MEASUREMENT

    公开(公告)号:US20180098231A1

    公开(公告)日:2018-04-05

    申请号:US15676110

    申请日:2017-08-14

    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.

    Apparatus, system and method of determining a time synchronization function (TSF) based on fine time measurement (FTM) messages

    公开(公告)号:US09907042B2

    公开(公告)日:2018-02-27

    申请号:US14998246

    申请日:2015-12-26

    CPC classification number: H04W56/0045 H04W24/08 H04W56/0015

    Abstract: Some demonstrative embodiments include apparatuses, systems and/or methods of determining a Time Synchronization Function (TSF) based on Fine Timing Measurement (FTM) messages. For example, a wireless station may be configured to determine a first TSF value of a local TSF of the wireless station at arrival of a first FTM message from a responder station; to determine a second TSF value of the local TSF at arrival of a second FTM message from the responder station, the second FTM message including a first Time of Departure (TOD) value of the first FTM message; to process a third FTM message from the responder station, the third FTM message including a second TOD value of the second FTM message; and to apply to the local TSF a TSF correction based at least on the first TSF value, the second TSF value, the first TOD value, and the second TOD.

    APPARATUS, SYSTEM AND METHOD OF MULTI USER RESOURCE ALLOCATION

    公开(公告)号:US20180027561A1

    公开(公告)日:2018-01-25

    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.

    Location determination of wireless stations using one-to-many communication techniques
    35.
    发明授权
    Location determination of wireless stations using one-to-many communication techniques 有权
    使用一对多通信技术的无线站的位置确定

    公开(公告)号:US09538321B2

    公开(公告)日:2017-01-03

    申请号:US14335346

    申请日:2014-07-18

    Inventor: Jonathan Segev

    Abstract: Certain embodiments herein relate to efficient location determination by wireless stations using one-to-many communication techniques. Location determination can be facilitated by using one-to-many communication techniques to provide for efficient timing message exchange between an initiating wireless station and one or more responding wireless stations. Based at least in part on the time-of-flight of the exchanged messages, the initiating wireless station can determine its distances from the respective one or more responding wireless stations. Based at least in part on the determined distances, the wireless initiating station can determine its location using trilateration or multilateration techniques.

    Abstract translation: 本文中的某些实施例涉及使用一对多通信技术的无线站的有效位置确定。 通过使用一对多通信技术来提供发起的无线站与一个或多个响应的无线站之间的有效的定时消息交换,可以促进位置确定。 至少部分地基于交换的消息的飞行时间,发起的无线站可以确定其与相应的一个或多个响应无线站的距离。 至少部分地基于确定的距离,无线发起站可以使用三边测量或多边测量技术确定其位置。

    Apparatus, system and method of determining a time synchronization function (TSF) based on fine time measurement (FTM) messages
    36.
    发明申请
    Apparatus, system and method of determining a time synchronization function (TSF) based on fine time measurement (FTM) messages 有权
    基于精细时间测量(FTM)消息确定时间同步功能(TSF)的设备,系统和方法

    公开(公告)号:US20160366660A1

    公开(公告)日:2016-12-15

    申请号:US14998246

    申请日:2015-12-26

    CPC classification number: H04W56/0045 H04W24/08 H04W56/0015

    Abstract: Some demonstrative embodiments include apparatuses, systems and/or methods of determining a Time Synchronization Function (TSF) based on Fine Timing Measurement (FTM) messages. For example, a wireless station may be configured to determine a first TSF value of a local TSF of the wireless station at arrival of a first FTM message from a responder station; to determine a second TSF value of the local TSF at arrival of a second FTM message from the responder station, the second FTM message including a first Time of Departure (TOD) value of the first FTM message; to process a third FTM message from the responder station, the third FTM message including a second TOD value of the second FTM message; and to apply to the local TSF a TSF correction based at least on the first TSF value, the second TSF value, the first TOD value, and the second TOD.

    Abstract translation: 一些演示实施例包括基于精细定时测量(FTM)消息来确定时间同步功能(TSF)的设备,系统和/或方法。 例如,无线站可以被配置为在来自应答站的第一FTM消息到达时确定无线站的本地TSF的第一TSF值; 以确定来自所述响应者站的第二FTM消息到达时所述本地TSF的第二TSF值,所述第二FTM消息包括所述第一FTM消息的第一出发时间(TOD)值; 从所述响应者站处理第三FTM消息,所述第三FTM消息包括所述第二FTM消息的第二TOD值; 并且至少基于第一TSF值,第二TSF值,第一TOD值和第二TOD,向本地TSF应用TSF校正。

    ENHANCED TRIGGER-BASED NULL DATA PACKET FOR CHANNEL SOUNDING

    公开(公告)号:US20210211326A1

    公开(公告)日:2021-07-08

    申请号:US17210364

    申请日:2021-03-23

    Abstract: This disclosure describes systems, methods, and devices related to a trigger-based null data packet (NDP) for channel sounding system. A device may send a trigger frame to a group of station devices, the group of station devices including a first station device, the trigger frame indicating a high efficiency (HE) long training field (HE-LTF) mode and a guard interval duration. The device may identify a HE trigger-based (TB) null data packet (NDP) received from the first station device, the HE TB NDP including a first packet extension field, wherein the HE TB NDP is associated with the HE-LTF mode and the guard interval duration indicated in the trigger frame. The device may send a downlink NDP including a second packet extension field, a second HE-LTF mode, and a second guard interval duration. The device may determine channel state information based on HE TB NDP received from the first station device.

    Authentication of ranging device
    38.
    发明授权

    公开(公告)号:US11039306B2

    公开(公告)日:2021-06-15

    申请号:US16202559

    申请日:2018-11-28

    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 decode a null data packet (NDP) announce (NDPA) frame from an initiator station (ISTA), the NDPA frame comprising a dialog token and an identification of a temporary key. The processing circuitry may be further configured to decode a first NDP from the ISTA, the NDP comprising first long training fields (LTFs), and wherein the NDP is received on a channel and encode a second NDP, the second NDP comprising second LTFs, wherein the second LTFs are determined based at least on the temporary key. The processing circuitry may be further configured to encode a location measurement report (LMR), the LMR comprising the dialog token and an indication of the temporary key.

    Security protection of measurement report

    公开(公告)号:US10715995B2

    公开(公告)日:2020-07-14

    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.

    Enhanced location service negotiation

    公开(公告)号:US10708720B2

    公开(公告)日:2020-07-07

    申请号:US16480262

    申请日:2017-12-20

    Abstract: This disclosure describes systems, methods, and devices related to enhanced location service negotiation. A device may identify a neighbor report frame received from one or more coordinated access points (APs), wherein the neighbor report frame comprises location capability support information. The device may determine a first ranging associated ID (R-AID) associated with the location capability support information. The device may determine a first location measurement with a first coordinated AP of the one or more coordinated APs and a second location measurement with a second coordinated AP of the one or more coordinated APs using the first R-AID.

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