Signalling enhancements for aerial operation

1. A method of wireless communication performed by a first base station (BS), the method comprising:

communicating, based on a handover condition, flight path information associated with an unmanned aerial vehicle (UAV), wherein the flight path information comprises one or more upcoming waypoints to be traveled by the UAV and one or more timestamps associated with the one or more upcoming waypoints; and

performing, based on the one or more upcoming waypoints and the one or more timestamps, a communication handover of the UAV between the first BS and a second BS.

2. The method of claim 1 , wherein:

the communicating the flight path information associated with the UAV comprises:

receiving the flight path information; and

the performing the communication handover comprises:

performing the communication handover of the UAV from the second BS to the first BS.

3. The method of claim 2 , wherein the receiving the flight path information further comprises:

receiving, from the UAV, the flight path information.

4. The method of claim 3 , wherein at least one of the first BS or the second BS is communicatively coupled to a 5G Core network unit.

5. The method of claim 2 , wherein the receiving the flight path information further comprises:

receiving, from a network, the flight path information.

6. The method of claim 2 , wherein the receiving the flight path information further comprises:

receiving, from the second BS, the flight path information.

7. The method of claim 6 , wherein the receiving the flight path information further comprises:

receiving, from the second BS, a handover request message comprising the flight path information.

8. The method of claim 1 , wherein:

the communicating the flight path information associated with the UAV comprises:

transmitting, to the second BS, the flight path information; and

the performing the communication handover comprises:

performing the communication handover of the UAV from the first BS to the second BS.

9. The method of claim 8 , wherein the transmitting the flight path information associated with the UAV further comprises:

transmitting, to the second BS, a handover request message comprising the flight path information.

10. The method of claim 1 , wherein the communicating the flight path information further comprises:

communicating, with the second BS, the flight path information over at least one of an X2 interface or an Xn interface.

11. The method of claim 1 , wherein the flight path information comprises partial flight path information associated with the UAV.

12. The method of claim 11 , wherein the partial flight path information excludes historic flight path information associated with the UAV.

13. The method of claim 12 , wherein the flight path information comprises an estimated time of arrival for one or more of the waypoints to be traveled by the UAV.

14. The method of claim 1 , further comprising;

receiving an indicator indicating that updated flight path information is available.

15. The method of claim 1 , wherein the communicating the flight path information associated with the UAV comprises:

receiving, from a networked UAV controller, the flight path information.

16. A method of communication performed by a network unit, the method comprising:

receiving an indication of a handover of an unmanned aerial vehicle (UAV) from a first base station (BS) to a second BS;

receiving flight path information associated with the UAV, wherein the flight path information comprises one or more upcoming waypoints to be traveled by the UAV and one or more timestamps associated with the one or more upcoming waypoints; and

transmitting, to the second BS in response to the receiving the flight path information and based on the indication of the handover of the UAV, the flight path information associated with the UAV.

17. The method of claim 16 , wherein the receiving the flight path information comprises at least one of:

receiving the flight path information from the UAV;

retrieving the flight path information from a server configured to store the flight path information; or

receiving the flight path information from the first BS.

18. The method of claim 16 , wherein the transmitting the flight path information associated with the UAV comprises:

transmitting, to the second BS, the flight path information via an S1 interface application protocol message.

19. The method of claim 16 , further comprising;

transmitting, to the second BS, an indicator indicating that updated flight path information is available.

20. The method of claim 16 , wherein the network unit comprises at least one of a mobility management entity node or an access and mobility management function node.

21. A first base station (BS) comprising:

a transceiver, a memory, and a processor coupled to the transceiver and the memory, the first base station configured to:

communicate, based on a handover condition, flight path information associated with an unmanned aerial vehicle (UAV), wherein the flight path information comprises one or more upcoming waypoints to be traveled by the UAV and one or more timestamps associated with the one or more upcoming waypoints; and

perform, based on the one or more upcoming waypoints and the one or more timestamps, a communication handover of the UAV between the first BS and a second BS.

22. The first BS of claim 21 , wherein the first BS is further configured to:

receive the flight path information; and

perform the communication handover of the UAV from the second BS to the first BS.

23. The first BS of claim 22 , wherein the first BS is further configured to at least one of:

receive, from the UAV, the flight path information;

receive, from a network, the flight path information; or

receive, from the second BS, the flight path information.

24. The first BS of claim 21 , wherein the first BS is further configured to:

communicate, with the second BS, the flight path information over at least one of an X2 interface or an Xn interface.

25. The first BS of claim 21 , wherein the flight path information comprises partial flight path information associated with the UAV.

26. The first BS of claim 25 , wherein the partial flight path information excludes historic flight path information associated with the UAV.

27. The first BS of claim 26 , wherein the flight path information comprises an estimated time of arrival for one or more of the waypoints to be traveled by the UAV.

28. The first BS of claim 21 , wherein the first BS is further configured to:

receive an indicator indicating that updated flight path information is available.

29. A network unit comprising:

a transceiver, a memory, and a processor coupled to the transceiver and the memory, the network unit configured to:

receive an indication of a handover of an unmanned aerial vehicle (UAV) from a first base station (BS) to a second BS;

receive flight path information associated with the UAV, wherein the flight path information comprises one or more upcoming waypoints to be traveled by the UAV and one or more timestamps associated with the one or more upcoming waypoints; and

transmit, to the second BS in response to receiving the flight path information and based on the indication of the handover of the UAV, the flight path information associated with the UAV.

30. The network unit of claim 29 , wherein the network unit is configured to perform at least one of:

receive the flight path information from the UAV;

retrieve the flight path information from a server configured to store the flight path information; or

receive the flight path information from the first BS.