Methods for Handling GNSS Reference System Information of Reference Stations

A method of estimating the position of a user equipment (UE) in association with a plurality of reference stations, the method comprising:

• performing one or more positioning measurements for the UE;
• receiving transfer information between a first reference system and a second reference system;
• and
• 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, 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.

A method, for a network node, to assist positioning of a user equipment (UE) in association with a plurality of reference stations, the method comprising:

• receiving, from the UE, identifiers of the following:
• a first reference station, a first reference system associated with the first reference station, and a second reference station;
• and
• sending, to the UE, transfer information between the first reference system and a second reference system associated with a second reference station.