Methods for handling GNSS reference system information of reference stations

US11821992B2 · 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: May 17, 2019
• Grant date: Nov 21, 2023
• Expiry date: May 31, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S19/44
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Exemplary embodiments include methods of estimating the position of a user equipment, UE, in association with a plurality of reference stations. Such embodiments can include performing one or more positioning measurements (e.g., carrier-phase measurements of GNSS satellite signals), and receiving transfer information between a first reference system and a second reference system. Such embodiments can also include determining an estimate of the UE's position based on the positioning measurements for the UE, the transfer information, and location coordinates of a plurality of entities (e.g., reference stations), wherein the location coordinates of at least one entity is associated with the first reference system and the location coordinates of at least one other entity is associated with the second reference system. Other embodiments include complementary methods performed by network nodes, as well as UEs and network nodes configured to perform such methods.