公开(公告)号：WO2014179224A3

公开(公告)日：2015-01-29

申请号：PCT/US2014035696

申请日：2014-04-28

Applicant: QUALCOMM INC

Inventor： EDGE STEPHEN WILLIAM ,  ALDANA CARLOS HORACIO

IPC: H04W64/00

CPC classification number: G06F21/606 ,  G01S5/0205 ,  G06F2221/2111 ,  H04W64/003

Abstract: Methods and apparatuses are presented for obfuscating the locations of terrestrial wireless transceivers, including wireless access points and femtocells. According to some embodiments, a method may receive, by a mobile device, data for a terrestrial wireless transceiver, wherein the data includes location coordinates of the terrestrial wireless transceiver, and wherein the location coordinates include an error term. Additionally, the method may include determining the error term based on the data. Furthermore, the method may include determining a corrected location of the terrestrial wireless transceiver by removing the error term from the location coordinates. In some instances, the data can further include a unique identifier associated with the terrestrial wireless transceiver, and wherein the error term is further determined based on the unique identifier.

Abstract translation: 提出了用于模糊地面无线收发器的位置的方法和装置，包括无线接入点和毫微微小区。 根据一些实施例，方法可以由移动设备接收用于陆地无线收发器的数据，其中所述数据包括地面无线收发器的位置坐标，并且其中所述位置坐标包括误差项。 另外，该方法可以包括基于数据确定误差项。 此外，该方法可以包括通过从位置坐标去除误差项来确定地面无线收发器的校正位置。 在一些情况下，数据可以进一步包括与地面无线收发器相关联的唯一标识符，并且其中基于唯一标识符进一步确定误差项。

公开(公告)号：WO2014160313A3

公开(公告)日：2014-12-11

申请号：PCT/US2014026295

申请日：2014-03-13

Applicant: QUALCOMM INC

Inventor： ALDANA CARLOS HORACIO ,  SRIDHARA VINAY ,  FISCHER SVEN ,  CHAO HUI ,  HOMCHAUDHURI SANDIP ,  CHO JAMES SIMON ,  ZHANG XIAOXIN

IPC: G01S5/02 ,  H04W64/00

CPC classification number: H04W64/00 ,  G01S5/0081 ,  G01S5/0236 ,  G01S5/0242 ,  H04W48/12

Abstract: A method and apparatus for broadcasting short interframe space information to aid in determining a round trip time are provided. The round trip time is used as an aid in locating nodes within a WiFi or WLAN network. The method begins with capturing a time of transmission of a frame by a transmitting station. The receiving station then captures the time of arrival of the frame just sent by the transmitting station. The receiving station replies with a received frame message and the time of departure is captured. The transmitting station then captures the time of arrival of the received frame message. The captured arrival and departure times of the frame and the received frame message allow the round trip time to be computed. The RTT may then be included as part of a network message.

Abstract translation: 提供了一种用于广播短帧间空间信息以帮助确定往返时间的方法和装置。 往返时间用作帮助定位WiFi或WLAN网络中的节点。 该方法从捕获发射站发射帧的时间开始。 接收站然后捕获刚刚由发射站发送的帧的到达时间。 接收站回复接收到的帧消息，并捕获出发时间。 发送站然后捕获接收到的帧消息的到达时间。 捕获的帧的到达和离开时间以及接收到的帧消息允许计算往返时间。 然后可以将RTT作为网络消息的一部分包含在内。

公开(公告)号：WO2015179154A3

公开(公告)日：2016-01-07

申请号：PCT/US2015030082

申请日：2015-05-11

Applicant: QUALCOMM INC

Inventor： HOMCHAUDHURI SANDIP ,  ALDANA CARLOS HORACIO ,  ZHANG XIAOXIN ,  KUMAR SUMEET

IPC: G01S11/02 ,  G01S5/02

CPC classification number: G01S13/765 ,  G01S5/0215 ,  G01S11/02

Abstract: Methods, systems, and devices are described that provide for wireless ranging. The methods, systems, and/or devices may include tools and techniques that provide for determining a range based on a TOD and a TOA that is adjusted based on a mean FAC. A probe may be transmitted from a transmitter to a receiver. The transmitter may receive a response, from the receiver. A strongest path within the response may be identified. A threshold may be determined. A plurality of FAC values may be identified, which exceed the threshold and precede the strongest path within the response. After the plurality of FAC values are identified, a mean FAC may be determined based at least in part on the plurality of FAC values. A TOA of the response may be adjusted based on the mean FAC. A range to the receiver may be determined based on a TOD and the adjusted TOA.

Abstract translation: 描述了提供无线测距的方法，系统和设备。 方法，系统和/或设备可以包括提供基于平均FAC调整的基于TOD和TOA来确定范围的工具和技术。 探头可以从发射机发射到接收机。 发射机可以从接收机接收响应。 可以确定响应中最强的路径。 可以确定阈值。 可以识别多个FAC值，其超过阈值并在响应内的最强路径之前。 在识别出多个FAC值之后，可以至少部分地基于多个FAC值来确定平均FAC。 响应的TOA可以根据平均FAC进行调整。 可以基于TOD和调整后的TOA来确定接收机的范围。

公开(公告)号：WO2014138686A3

公开(公告)日：2014-12-04

申请号：PCT/US2014022101

申请日：2014-03-07

Applicant: QUALCOMM INC

Inventor： ALDANA CARLOS HORACIO

IPC: G06F17/15 ,  H04W64/00 ,  H04W88/02

CPC classification number: H04W24/02 ,  G01S5/14 ,  H04W64/00 ,  H04W84/12

Abstract: Disclosed are methods and apparatuses for estimating a position of a mobile device based, at least in part, on measuring differences of times of arrival of data packets transmitted to the mobile device from transmitters. In specific implementations, time-staggered quasi-matched filter correlators may apply a known waveform or data sequence to a payload of a received data packet to detect a correlation peak or correlation maximum corresponding to a time of arrival of the received data packet.

Abstract translation: 至少部分地基于测量从发射机发送到移动设备的数据分组的到达时间的差异来估计移动设备的位置的方法和装置。 在具体实现中，时间交错的准匹配滤波器相关器可以将已知的波形或数据序列应用于接收的数据分组的有效载荷，以检测与所接收的数据分组的到达时间对应的相关峰值或相关最大值。

公开(公告)号：WO2014137630A3

公开(公告)日：2014-11-06

申请号：PCT/US2014017759

申请日：2014-02-21

Applicant: QUALCOMM INC

Inventor： ALDANA CARLOS HORACIO ,  ZHANG NING

IPC: H04W56/00

CPC classification number: H04W56/0035 ,  H04W40/244 ,  H04W56/003 ,  H04W88/08

Abstract: Systems and methods for calculating round trip time (RTT) between two wireless devices with respective clock drifts, while lowering the impact of the clock drifts on the RTT. A first RTT in a first direction is determined between a first wireless device and a second wireless device based on a first set of one or more messages exchanged between the first wireless device and the second wireless device. A second RTT in a second direction is determined between the second wireless device and the first wireless device based on a second set of one or more messages exchanged between the second wireless device and the first wireless device, and an average RTT of the first RTT and the second RTT is computed, wherein the average RTT has a low impact of the clock drifts.

Abstract translation: 在具有相应时钟漂移的两个无线设备之间计算往返时间（RTT）的系统和方法，同时降低时钟漂移对RTT的影响。 基于在第一无线设备和第二无线设备之间交换的一个或多个消息的第一组，在第一无线设备和第二无线设备之间确定第一方向上的第一RTT。 基于在第二无线设备和第一无线设备之间交换的一个或多个消息的第二组以及第一RTT的平均RTT和第二无线设备的平均RTT，在第二无线设备和第一无线设备之间确定第二RTT， 计算第二RTT，其中平均RTT对时钟漂移的影响较小。