Method and apparatus for delivering assistance data from a server to a device identifying virtual access points
    24.
    发明授权
    Method and apparatus for delivering assistance data from a server to a device identifying virtual access points 有权
    用于将辅助数据从服务器传递到识别虚拟接入点的设备的方法和装置

    公开(公告)号:US09588216B2

    公开(公告)日:2017-03-07

    申请号:US14537744

    申请日:2014-11-10

    CPC classification number: G01S5/0252 G01S5/0236 H04W64/00

    Abstract: Methods and apparatus for processing positioning assistance data are provided. An exemplary method includes receiving, from a positioning server, virtual access point (VAP) data including a list of unique identifiers, and determining a location of a mobile device by using the VAP. The VAP data indicates that the unique identifiers included on the list identify signals originating from the same physical access point. The unique identifiers can be MAC addresses. In an example, the location determining the can include actively scanning a signal identified by a unique identifier on the list and not actively scanning a different signal identified by a different unique identifier also on the list. Not scanning the other MAC addresses that are on the access point's list and assigned to the mobile device keeps the mobile device from performing duplicative scanning that wastes time, processor cycles, and energy.

    Abstract translation: 提供了用于处理定位辅助数据的方法和装置。 一种示例性方法包括从定位服务器接收包括唯一标识符的列表的虚拟接入点(VAP)数据,以及通过使用VAP来确定移动设备的位置。 VAP数据指示列表中包括的唯一标识符识别源自相同物理接入点的信号。 唯一标识符可以是MAC地址。 在一个示例中,确定该位置的位置可以包括主动地扫描由列表上的唯一标识符标识的信号,而不主动地扫描由列表上的不同唯一标识符标识的不同信号。 不扫描接入点列表上分配给移动设备的其他MAC地址会使移动设备不会执行浪费时间,处理器周期和能量的重复扫描。

    VISUAL INERTIAL ODOMETRY ATTITUDE DRIFT CALIBRATION
    26.
    发明申请
    VISUAL INERTIAL ODOMETRY ATTITUDE DRIFT CALIBRATION 审中-公开
    可视化实际的ODOMETRY态度标定

    公开(公告)号:US20170031032A1

    公开(公告)日:2017-02-02

    申请号:US15078862

    申请日:2016-03-23

    Abstract: Disclosed embodiments pertain to a method on a UE may comprise determining a first absolute position of the UE at a first time based on GNSS measurements from a set of satellites. At a second time subsequent to the first time, the UE may determine a first estimate of displacement of the UE relative to the first absolute position using non-GNSS measurements. Further, at the second time, the UE may also determine a second estimate of displacement relative to the first absolute position and/or a second absolute position of the UE based, in part, on: the GNSS carrier phase measurements at the first time from the set of satellites, and GNSS carrier phase measurements at the second time from a subset comprising two or more satellites of the set of satellites, and the first estimate of displacement of the UE.

    Abstract translation: 公开的实施例涉及一种在UE上的方法可以包括基于来自一组卫星的GNSS测量来确定UE在第一时间的第一绝对位置。 在第一次之后的第二时间,UE可以使用非GNSS测量来确定UE相对于第一绝对位置的位移的第一估计。 此外,在第二时间,UE还可以部分地基于以下来确定相对于UE的第一绝对位置和/或第二绝对位置的位移的第二估计:第一时间的GNSS载波相位测量 所述卫星组以及来自包括卫星组的两个或更多个卫星的子集的第二时间的GNSS载波相位测量以及UE的位移的第一估计。

    Predictive scheduling of navigation tasks
    28.
    发明授权
    Predictive scheduling of navigation tasks 有权
    导航任务的预测调度

    公开(公告)号:US09014974B2

    公开(公告)日:2015-04-21

    申请号:US13653263

    申请日:2012-10-16

    Abstract: Disclosed are systems, apparatus, devices, methods, computer program products, and other implementations, including a method of controlling navigation tasks on a mobile device that includes obtaining data representative of a route of travel for the mobile device, obtaining a list of navigation tasks associated with the route of travel for the mobile device, and performing one or more navigation tasks in accordance with the list of navigation tasks based, at least in part, on proximity of the mobile device to one or more points on the route of travel. Performing the one or more navigation tasks includes one or more of, for example, obtaining satellite positioning assistance data in response to a determination that the mobile device is transitioning from an indoor area to an outdoor area, and/or establishing a communication link with an access point.

    Abstract translation: 公开了系统,装置,设备,方法,计算机程序产品和其他实现方式,包括控制移动设备上的导航任务的方法,该方法包括获取代表移动设备的行进路线的数据,获得导航任务列表 与移动设备的行进路线相关联,以及至少部分地基于移动设备与行进路线上的一个或多个点的接近度,根据导航任务列表执行一个或多个导航任务。 执行一个或多个导航任务包括例如响应于移动设备从室内区域转移到室外区域的确定而获得卫星定位辅助数据的一个或多个,和/或建立与 切入点。

    Indoor radio ranging based on a subset of subcarriers employed by orthogonal frequency division multiplexing (OFDM)
    29.
    发明申请
    Indoor radio ranging based on a subset of subcarriers employed by orthogonal frequency division multiplexing (OFDM) 有权
    基于正交频分复用(OFDM)采用的子载波子集的室内无线电测距

    公开(公告)号:US20140112375A1

    公开(公告)日:2014-04-24

    申请号:US13656398

    申请日:2012-10-19

    Abstract: Systems, apparatus and methods for determining a set of ranges from selected subcarriers of an OFDM signal sent between a receiver (e.g., first transceiver or a local receiver of a local unit at a first location) and a transmitter (e.g., second transceiver or remote transmitter of a remote unit at a second location) are presented. The set of ranges is ambiguous as to the correct range. Each range in this set of ambiguous ranges represents a possible range between the transmitter and the receiver. Range ambiguities may be resolved by using additional subcarriers from the OFDM signal and/or using a last know position of a receiver and/or finding ranges to two, three or more transmitters. The range may be used with other ranges to find a location estimate of the receiver.

    Abstract translation: 用于确定在接收器(例如,第一收发器或第一位置的本地单元的本地接收器)之间发送的OFDM信号的选定子载波的集合范围的系统,装置和方法以及发射机(例如,第二收发器或远程 呈现远程单元在第二位置的发射机)。 范围的集合对于正确的范围是不明确的。 该组模糊范围内的每个范围表示发射机和接收机之间的可能范围。 可以通过使用来自OFDM信号的附加子载波和/或使用接收机的最后知道位置和/或找到两个,三个或更多个发射机的范围来解决范围模糊。 该范围可以与其他范围一起使用以找到接收机的位置估计。

    Wireless positioning using scheduled transmissions

    公开(公告)号:US10182413B2

    公开(公告)日:2019-01-15

    申请号:US14446738

    申请日:2014-07-30

    Abstract: A station (STA) receives a schedule from a reference device in a wireless network. The schedule provides a measurement time for each of one or more wireless channels. The STA tunes to a first channel of the one or more wireless channels in accordance with the schedule. While tuned to the first channel in accordance with the schedule, the STA receives a first message from a first access point (AP). The first message, which includes a time-of-departure timestamp from the reference device, is time-stamped with a time-of-arrival timestamp. The STA receives an indication of a time at which the reference device received the first message from the first AP. The STA determines its position based in part on the time-of-departure timestamp, the time-of-arrival timestamp, and the time at which the reference device received the first message.

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