公开(公告)号：US09686767B2

公开(公告)日：2017-06-20

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: H04M3/42 ,  H04W64/00 ,  H04M1/725 ,  G01C21/36 ,  G01C21/34 ,  H04W88/02

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.