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。