公开(公告)号：US20190128996A1

公开(公告)日：2019-05-02

申请号：US16169526

申请日：2018-10-24

Applicant: QUALCOMM Incorporated

Inventor： Milind PATIL ,  Aditya Narain SRIVASTAVA

IPC: G01S5/02 ,  H04W64/00 ,  H04W76/11 ,  H04W4/02 ,  H04B17/364

Abstract: A mobile wireless transmitter is detected from location data received for a plurality of wireless transmitters obtained through crowdsourcing or wardriving. Location data is held until sufficient time or enough location data is collected from which movement of a wireless transmitter can be detected. Sets of measurement data for each wireless transmitter are determined from the collected location data. The sets of measurement data may include, e.g., Service Set Identifier (SSID), a round trip time (RTT) variance, and/or a neighbor relationship graph for each wireless transmitter. The mobile wireless transmitter is identified from the sets of measurement data. An almanac database may then be published in which any mobile wireless transmitters are identified or excluded.

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。