公开(公告)号：US20150330795A1

公开(公告)日：2015-11-19

申请号：US14278931

申请日：2014-05-15

Applicant: QUALCOMM INCORPORATED

Inventor： Ramya SRINIVASAN ,  Milind H. PATIL ,  Ferit O. AKGUL ,  Praveen DUA ,  Gaurav LAMBA

IPC: G01C21/20

CPC classification number: G01C21/206 ,  G01S5/0236 ,  H04W64/00

Abstract: Methods and systems are presented for updating assistance data in an indoor navigation system. In some embodiments, a method includes receiving ranging measurements from a reference positioning terminal, computing an estimated location of the reference positioning terminal based on the received ranging measurements, receiving information associated with a high-confidence location of the reference positioning terminal, determining that a difference between the estimated location and the high-confidence location of the reference positioning terminal is greater than a predetermined threshold, and sending an assistance data update to a server associated with the indoor navigation system, the assistance data update including an update to assistance data based on the received ranging measurements of the reference positioning terminal.

Abstract translation: 提出了用于在室内导航系统中更新辅助数据的方法和系统。 在一些实施例中，一种方法包括从参考定位终端接收测距测量，基于所接收的测距测量来计算参考定位终端的估计位置，接收与参考定位终端的高置信位置相关联的信息， 参考定位终端的估计位置和高置信度位置之间的差异大于预定阈值，并且向与室内导航系统相关联的服务器发送辅助数据更新，辅助数据更新包括基于辅助数据的更新 对于参考定位终端的接收测距测量。

公开(公告)号：US20170064665A1

公开(公告)日：2017-03-02

申请号：US15076354

申请日：2016-03-21

Applicant: QUALCOMM Incorporated

Inventor： James Douglass DELOACH ,  Gaurav LAMBA ,  Milind PATIL ,  Bruce Everett WILSON

IPC: H04W64/00 ,  G01C21/36 ,  G01C21/34 ,  H04M1/725

CPC classification number: H04W64/00 ,  G01C21/206 ,  G01C21/3453 ,  G01C21/3667 ,  H04M1/72572 ,  H04W88/02

Abstract: Methods, systems, computer-readable media, and apparatuses for determining location are presented. One example method includes obtaining a route comprising an ordered set of waypoints; receiving an indication of traversal of the route beginning at a first waypoint and recording a time associated with the indication; determining location information and time information at a sampling rate; for each subsequent waypoint of the ordered set of waypoints: receiving a signal indicating arrival at a current waypoint of the ordered set of waypoints, determining a time and a ground truth associated with the signal, and determining error information associated with each determined location between the prior waypoint and the current waypoint; and providing the error information to a remote device.

Abstract translation: 提出了用于确定位置的方法，系统，计算机可读介质和装置。 一个示例性方法包括获得包括有序航路点集合的路线; 从第一航点接收从所述路线穿越的指示并记录与所述指示相关联的时间; 以采样率确定位置信息和时间信息; 对于有序航路点集合的每个随后航路点：接收指示到达有序航路点集合的当前航路点的信号，确定与该信号相关联的时间和地面实况，以及确定与该信号之间的每个确定位置相关联的错误信息 以前的航点和当前航点; 并向远程设备提供错误信息。

公开(公告)号：US20150264536A1

公开(公告)日：2015-09-17

申请号：US14216828

申请日：2014-03-17

Applicant: QUALCOMM Incorporated

Inventor： Milind H. PATIL ,  Sunil A. PATEL ,  Gaurav LAMBA

IPC: H04W4/04 ,  H04W4/02

CPC classification number: H04W4/029 ,  H04W4/33

Abstract: A method of determining a present location of a mobile device within a structure includes: obtaining a prior location of the mobile device, the prior location being on a first floor of the structure; and in response to the prior location being indicative of the present location being remote from a floor transition, using a first set of access points to determine the present location, the first set of access points disposed only on the first floor; or in response to the prior location being indicative of the present location being proximate to the floor transition, using a second set of access points to determine the present location of the mobile device, the second set of access points comprising one or more access points disposed on the first floor and one or more access points disposed on the second floor, the second floor being separate from the first floor.

Abstract translation: 确定结构内的移动设备的当前位置的方法包括：获得移动设备的先前位置，所述先前位置在所述结构的一楼; 并且响应于所述先前位置指示所述当前位置远离楼层转换，使用第一组接入点来确定所述当前位置，所述第一组接入点仅设置在所述一楼; 或者响应于先前位置指示当前位置接近楼层转换，使用第二组接入点来确定移动设备的当前位置，所述第二组接入点包括一个或多个接入点 在第一层和设置在二楼的一个或多个接入点，二楼与一楼分开。