Methods for indication of reference station GNSS RTK integer ambiguity level

US12174303B2 · kind B2 · utility

Assignee

• Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

• Fredrik Gunnarsson · Linköping, SE
• Sara Modarres Razavi · Linköping, SE
• Ritesh Shreevastav · Upplands Väsby, SE

Key dates

• Filing date: Oct 2, 2020
• Grant date: Dec 24, 2024
• Expiry date: Feb 16, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S2205/008
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

According to one aspect of the disclosure, a location node configured to communicate with a wireless device is provided. The location node includes processing circuitry configured to: receive spatial information; determine the wireless device relationship between a first reference station and a second reference station based at least in part on the spatial information; compare a first integer ambiguity level of the first reference station with a second integer ambiguity level of the second reference station, the second reference station corresponding to a current reference station of the wireless device; and transmit an indication of an applicability of the first integer ambiguity level of the first reference station to the second integer ambiguity level of the second reference station for position estimation, the indication being based on the comparison of the first integer ambiguity level with the second integer ambiguity level.