IP Library › Granted Patent US 11,166,208
Granted Patent B2
US 11,166,208 · App. 16/610,049 · Granted Nov 2, 2021

Methods and systems for using an unmanned aerial vehicle (UAV) flight path to coordinate an enhanced handover in 3rd generation partnership project (3GPP) networks

Inventors: Attila Takács (San Jose, CA); Ravi Manghirmalani (Fremont, CA); Heikki Mahkonen (San Jose, CA); Yi-Pin Eric Wang (Fremont, CA); Xingqin Lin (San Jose, CA)
Assignee: Telefonaktiebolaget LM Ericsson (publ)
H04W36/00835G08G5/003H04B7/18506H04W16/18H04W36/00837
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 11,166,208
App. No.
16/610,049
Granted
Nov 2, 2021
Kind
B2
Abstract

A method for managing an unmanned aerial vehicle (UAV) is described. The method may include receiving flight plan information describing a flight path of the UAV; generating one or more cell lists based on the flight plan information; and transmitting the one or more cell lists to a source cell in a wireless network in which the UAV is currently operating, wherein the one or more cell lists are used in a handover procedure between the source cell that the UAV is currently connected to and a target cell that the UAV will connect to after completing the handover procedure.

Claims (44)

1. A method for managing an unmanned aerial vehicle (UAV), comprising:

receiving flight plan information describing a flight path of the UAV;

generating one or more cell lists based on the flight plan information; and

transmitting the one or more cell lists to a source cell in a wireless network in which the UAV is currently operating,

wherein the one or more cell lists are used in a handover procedure between the source cell that the UAV is currently connected to and a target cell that the UAV will connect to after completing the handover procedure, and

wherein the one or more cell lists include a neighbor cell black list that includes unique identifiers of a first set of cells in the wireless network that the UAV is to ignore while recording radio measurement information, and

wherein the neighbor cell black list includes cells that are historically selected for handovers in the wireless network below a threshold rate of selection.

2. The method of claim 1 , wherein the one or more cell lists include a neighbor cell list that indicates a second set of cells, wherein the UAV is to record and report, to the source cell, radio measurement information describing signals from the second set of cells that are detected by the UAV.

3. The method of claim 2 , wherein the second set of cells provide wireless network coverage along the flight path of the UAV.

4. The method of claim 3 , wherein the second set of cells provide wireless coverage along parts of the flight path that will be traversed by the UAV.

5. The method of claim 3 , wherein the second set of cells provide network coverage to the UAV based on an altitude of the UAV indicated in the flight plan information.

6. The method of claim 3 , further comprising:

receiving, from the UAV, the radio measurement information that is generated based on the one or more cell lists;

selecting the target cell from the second set of cells based on the radio measurement information; and

causing performance of the handover procedure with the target cell, including causing the UAV to disconnect from the source cell and connect with the target cell.

7. The method of claim 1 , wherein the first set of cells provide wireless network coverage to areas outside the flight path of the UAV.

8. The method of claim 1 , wherein the flight plan information that describes the flight path of the UAV was approved by a UAV Traffic Management (UTM) system.

9. The method of claim 1 , wherein the flight plan information includes altitude information.

10. The method of claim 1 , wherein the wireless network is a 3rd Generation Partnership Project (3GPP) network.

11. The method of claim 9 , wherein the source cell and the target cell are one or more of an enhanced nodeB and a radio base station.

12. The method of claim 10 , wherein a Mobility Management Entity (MME) generates the one or more cell lists.

13. The method of claim 9 , wherein the one or more cell lists are generated using 3 GPP Location Services (LCS).

14. A non-transitory computer-readable storage medium storing instructions which, when executed by a set of one or more processors of a computing device, cause the computing device to:

receive flight plan information describing a flight path of an unmanned aerial vehicle (UAV);

generate one or more cell lists based on the flight plan information; and

transmit the one or more cell lists to a source cell in a wireless network in which the UAV is currently operating,

wherein the one or more cell lists are used in a handover procedure between the source cell that the UAV is currently connected to and a target cell that the UAV will connect to after completing the handover procedure,

wherein the one or more cell lists include a neighbor cell black list that includes unique identifiers of a first set of cells in the wireless network that the UAV is to ignore while recording radio measurement information, and

wherein the neighbor cell black list includes cells that are historically selected for handovers in the wireless network below a threshold rate of selection.

15. The non-transitory computer-readable storage medium of claim 14 , wherein the first set of cells provide wireless network coverage to areas outside the flight path of the UAV.

16. The non-transitory computer-readable storage medium of claim 14 , wherein the one or more cell lists include a neighbor cell list that indicates a second set of cells, wherein the UAV is to record and report, to the source cell, radio measurement information describing signals from the second set of cells that are detected by the UAV.

17. The non-transitory computer-readable storage medium of claim 14 , wherein the wireless network is a 3rd Generation Partnership Project (3GPP) network.

18. A network device for managing an unmanned aerial vehicle (UAV), comprising:

a processing circuitry;

a memory coupled to the processing circuitry, wherein the memory includes one or more instructions that, when executed by the processing circuitry, cause the network device to:

receive flight plan information describing a flight path of the UAV;

generate one or more cell lists based on the flight plan information; and

transmit the one or more cell lists to a source cell in a wireless network in which the UAV is currently operating,

wherein the one or more cell lists are used in a handover procedure between the source cell that the UAV is currently connected to and a target cell that the UAV will connect to after completing the handover procedure,

wherein the one or more cell lists include a neighbor cell black list that includes unique identifiers of a first set of cells in the wireless network that the UAV is to ignore while recording radio measurement information, and

wherein the neighbor cell black list includes cells that are that are historically selected for handovers in the wireless network below a threshold rate of selection.

19. The network device of claim 18 , wherein the one or more cell lists include a neighbor cell list that indicates a second set of cells, wherein the UAV is to record and report, to the source cell, radio measurement information describing signals from the second set of cells that are detected by the UAV.

20. The network device of claim 18 , wherein the first set of cells provide wireless network coverage to areas outside the flight path of the UAV.

21. The network device of claim 18 , wherein the wireless network is a 3rd Generation Partnership Project (3GPP) network.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 1, 2019
From: TAKÁCS, ATTILA; MANGHIRMALANI, RAVI; MAHKONEN, HEIKKI; WANG, YI-PIN ERIC; LIN, XINGQIN
To: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Reel/Frame 050894/0754 →
Continuity (2)
Provisional Application 62502489 · May 5, 2017
Related Publication 20200120563A1 · Apr 16, 2020
Cited By (2)
US 12,367,778 US 12,552,559