公开(公告)号：US20140097988A1

公开(公告)日：2014-04-10

申请号：US13646276

申请日：2012-10-05

Applicant: QUALCOMM Incorporated

Inventor： Stephen Joseph BEAUREGARD

IPC: G01S11/04

CPC classification number: G01S11/04 ,  G01S5/0252 ,  G01S13/588 ,  G01S13/589 ,  G01S13/876 ,  G01S13/878

Abstract: Systems and methods for two-dimensional (2D) velocity estimation of an object in an area of interest are disclosed. The area of interest can correspond to an indoor or an outdoor environment. Round trip times (RTTs) of signals from two or more signal sources to the object are determined. The object is relocated and delta RTT values of the signals subsequent to relocation of the object within the area of interest are determined. Angles of arrival (AOAs) of the signals at the object also determined. The 2D velocity of the object is estimated by on solving a system of non-linear equations based on the delta RTT values and the AOAs.

Abstract translation: 公开了用于感兴趣区域中的对象的二维（2D）速度估计的系统和方法。 感兴趣的区域可以对应于室内或室外环境。 确定从两个或多个信号源到物体的信号的往返时间（RTT）。 对象被重新定位，并且确定在目标区域内的对象的重定位之后的信号的delta RTT值。 对象的信号的到达角（AOAs）也被确定。 通过基于ΔRTT值和AOA求解非线性方程组的系统来估计物体的二维速度。

公开(公告)号：US20150264520A1

公开(公告)日：2015-09-17

申请号：US14211861

申请日：2014-03-14

Applicant: QUALCOMM Incorporated

Inventor： Stephen Joseph BEAUREGARD ,  Praveen DUA

IPC: H04W4/02

CPC classification number: H04W64/00 ,  H04W84/12

Abstract: Methods, systems, computer-readable media, and apparatuses for determining a location for a wireless communication device using an integrated WiFi sniffer and measurement engine are presented. The method includes utilizing a first WiFi transceiver and a second WiFi transceiver. Data communications or positioning communications can be transmitted and received on either of the first and the second WiFi transceivers, or both.

Abstract translation: 提出了使用集成的WiFi嗅探器和测量引擎来确定无线通信设备的位置的方法，系统，计算机可读介质和设备。 该方法包括利用第一WiFi收发器和第二WiFi收发器。 数据通信或定位通信可以在第一和第二WiFi收发器之一或两者上发送和接收。

公开(公告)号：US20140111375A1

公开(公告)日：2014-04-24

申请号：US13656402

申请日：2012-10-19

Applicant: QUALCOMM INCORPORATED

Inventor： Stephen Joseph BEAUREGARD

IPC: G01S19/05

CPC classification number: G01S19/05 ,  G01S13/82 ,  H04W56/0065

Abstract: Systems and methods of providing fine-time assistance (FTA) for a mobile device are described herein. A GNSS time is received from a GNSS satellite at a GNSS receiver. The GNSS time is then transferred to an access point (AP) over a wired network. The AP is coupled to the mobile device over a wireless local area network (WLAN). A round trip time (RTT) between the AP and the mobile device over the WLAN is determined, for example by exchanging one or more communications between the mobile device and the AP over the wireless local area network (WLAN). The GNSS time is then transferred from the AP to the mobile device over the WLAN. A FTA based GNSS time is calculated at the mobile device based on the GNSS time received from the AP and the RTT.

Abstract translation: 本文描述了为移动设备提供精细时间辅助（FTA）的系统和方法。 GNSS接收机从GNSS卫星接收GNSS时间。 然后，GNSS时间通过有线网络传输到接入点（AP）。 AP通过无线局域网（WLAN）耦合到移动设备。 例如，通过在无线局域网（WLAN）上交换移动设备和AP之间的一个或多个通信来确定AP和WLAN之间的移动设备之间的往返时间（RTT）。 然后，GNSS时间通过WLAN从AP传送到移动设备。 基于从AP和RTT接收的GNSS时间，在移动设备处计算基于FTA的GNSS时间。