Recovery from position and time outliers in positioning

US9423505B2 · kind B2 · utility

Assignee

• QUALCOMM Incorporated · US

Inventors

• Wyatt Thomas Riley · King of Prussia, US
• Lalitaprasad V. Daita · San Jose, US
• William Morrison · San Francisco, US
• Dominic Gerard Farmer · Los Gatos, US
• Jie Wu · San Diego, US

Key dates

• Filing date: Dec 14, 2011
• Grant date: Aug 23, 2016
• Expiry date: Jun 29, 2034

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S19/45
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A mobile device may use one or more outlier detectors to detect likelihoods that an outlier condition exists for a satellite positioning system (SPS) position fix. In some implementations, an outlier detector may compare a computed position fix to an element of assistance data to generate an outlier likelihood. A decision to perform a recovery operation may be made based, at least in part, on a generated outlier likelihood. In some implementations, a computed reliability of the position fix may also be considered in making a recovery decision.