Global navigation satellite system data validity in non-terrestrial networks

1 . A method by a user equipment (UE), the method comprising:

obtaining Global Navigation Satellite System (GNSS) data;

during establishment of a connection with a network, transmitting, to the network, an indication of a validity duration of the GNSS data; and

receiving, from the network, an indication that the GNSS data is not expected to remain valid during the connection.

2 . The method of claim 1 , further comprising:

after receiving the indication that the GNSS data is not expected to remain valid during the connection, acquiring new GNSS data.

3 . The method of claim 1 , wherein the network requests the UE to refresh the GNSS data.

4 . The method of claim 1 , wherein the network is a Non-Terrestrial Network (NTN).

5 . The method of claim 1 , further comprising:

maintaining at least one validity timer for determining whether the GNSS data is valid or not valid.

6 . A user equipment (UE) comprising processing circuitry configured to cause the UE to:

obtain Global Navigation Satellite System (GNSS) data;

during establishment of a connection with a network, transmit, to the network, an indication of a validity duration of the GNSS data; and

receive, from the network, an indication that the GNSS data is not expected to remain valid during the connection.

7 . The UE of claim 6 , wherein the processing circuitry is configured to cause the UE to:

after receiving the indication that the GNSS data is not expected to remain valid during the connection, acquire new GNSS data.

8 . The UE of claim 6 , wherein the network requests the UE to refresh the GNSS data.

9 . The UE of claim 6 , wherein the network is a Non-Terrestrial Network (NTN).

10 . The UE of claim 6 , wherein the processing circuitry is configured to cause the UE to:

maintain at least one validity timer for determining whether the GNSS data is valid or not valid.

11 . A method by a network node, the method comprising:

during establishment of a connection with a user equipment (UE), receiving, from the UE, an indication of a validity duration of Global Navigation Satellite System (GNSS) data; and

transmitting, to the UE, an indication that the GNSS data is not expected to remain valid during the connection.

12 . The method of claim 11 , wherein the network node requests the UE to refresh the GNSS data.

13 . The method of claim 11 , wherein the network node is part of a Non-Terrestrial Network (NTN).

14 . The method of claim 11 , further comprising:

maintaining, at the network node, at least one validity timer for determining whether the GNSS data is valid or not valid.

15 . A network node comprising processing circuitry configured to cause the network node to:

during establishment of a connection with a user equipment (UE), receive, from the UE, an indication of a validity duration of Global Navigation Satellite System (GNSS) data; and

transmit, to the UE, an indication that the GNSS data is not expected to remain valid during the connection.

16 . The network node of claim 15 , wherein the network node requests the UE to refresh the GNSS data.

17 . The network node of claim 15 , wherein the network is part of a Non-Terrestrial Network (NTN).

18 . The network node of claim 15 , wherein the processing circuitry is configured to cause the network node to:

maintain, at the network node, at least one validity timer for determining whether the GNSS data is valid or not valid.