Positioning in non-terrestrial networks

A wireless device comprising:

• one or more processors;
• and
• memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
• receive, from a base station, a system information block (SIB) indicating time information for when a cell, provided via non-terrestrial network, stops serving an area;
• receive, from a location management function (LMF), a provide assistance data message, for a multi-round transmission time (RTT) positioning, indicating at least one downlink positioning reference signal (DL PRS) resource;
• start a measurement period for measuring user-equipment (UE) reception-transmission (Rx−Tx) time difference measurements, wherein the UE Rx−Tx time difference measurements are based on measuring the at least one DL PRS resource;
• initiate, based on the time information indicated by the SIB, a satellite switch, wherein the satellite switch is to switch satellites without changing a physical cell identifier (PCI);
• and
• in response to the satellite switch occurring during the measurement period, suspend, during an interruption time for the satellite switch, measuring the at least one DL PRS resource.

A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors of a wireless device, cause the wireless device to:

• receive, from a base station, a system information block (SIB) indicating time information for when a cell, provided via non-terrestrial network, stops serving an area;
• receive, from a location management function (LMF), a provide assistance data message, for a multi-round transmission time (RTT) positioning, indicating at least one downlink positioning reference signal (DL PRS) resource;
• start a measurement period for measuring user-equipment (UE) reception-transmission (Rx−Tx) time difference measurements, wherein the UE Rx−Tx time difference measurements are based on measuring the at least one DL PRS resource;
• initiate, based on the time information indicated by the SIB, a satellite switch, wherein the satellite switch is to switch satellites without changing a physical cell identifier (PCI);
• and
• in response to the satellite switch occurring during the measurement period, suspend, during an interruption time for the satellite switch, measuring the at least one DL PRS resource.