Cell selection for uncrewed aerial vehicle command and control link reliability over cellular networks

Patent metadata

Field	Value
Publication number	US-12593256-B2
Application number	US-202318471248-A
Country	US
Kind code	B2
Filing date	Sep 20, 2023
Priority date	Sep 20, 2023
Publication date	Mar 31, 2026
Grant date	Mar 31, 2026

Abstract

A processing system deployed in a cellular network may detect capability information of an uncrewed aerial vehicle, the capability information including carrier aggregation capability information, where the uncrewed aerial vehicle includes at least one cellular radio for communication with the cellular network, select, in accordance with the carrier aggregation capability information, a primary cell of the cellular network to serve the uncrewed aerial vehicle, where the selecting comprises selecting the primary cell from among a plurality of cells within a communication range of the uncrewed aerial vehicle based on the primary cell having a largest coverage range for the uncrewed aerial vehicle as compared to other cells, and transmit at least a first instruction to assign at least a first portion of data traffic of the uncrewed aerial vehicle to the primary cell, the at least the first portion of the data traffic comprising command and control traffic.

First claim

What is claimed is:

1 . A method comprising:
detecting, by a processing system including at least one processor deployed in a cellular network, capability information of an uncrewed aerial vehicle, wherein the capability information includes carrier aggregation capability information, wherein the uncrewed aerial vehicle includes at least one cellular radio for communication with the cellular network; selecting, by the processing system in accordance with the carrier aggregation capability information of the uncrewed aerial vehicle, a primary cell of the cellular network to serve the uncrewed aerial vehicle, wherein the selecting comprises selecting the primary cell from among a plurality of cells within a communication range of the uncrewed aerial vehicle based on the primary cell having a largest coverage range for the uncrewed aerial vehicle as compared to other cells of the plurality of cells; and transmitting, by the processing system, at least a first instruction to assign at least a first portion of data traffic of the uncrewed aerial vehicle to the primary cell, wherein the at least the first portion of the data traffic comprises command and control traffic of the uncrewed aerial vehicle.

2 . The method of claim 1 , wherein the coverage range is calculated in accordance with a communication range of the primary cell and a trajectory of the uncrewed aerial vehicle.

3 . The method of claim 2 , wherein the trajectory is estimated from a location sequence of the uncrewed aerial vehicle.

4 . The method of claim 3 , wherein the location sequence is obtained from at least one of: reference signal positioning estimates or a location reporting from the uncrewed aerial vehicle.

5 . The method of claim 1 , wherein the primary cell is selected based on a frequency band of the primary cell being a lower frequency band as compared to other cells of the plurality of cells.

6 . The method of claim 1 , further comprising:
selecting a secondary cell of the cellular network to serve the uncrewed aerial vehicle.

7 . The method of claim 6 , wherein the secondary cell is selected from among the plurality of cells having a largest bandwidth as compared to other cells of the plurality of cells.

8 . The method of claim 7 , wherein the secondary cell is selected from among the plurality of cells having a largest bandwidth as compared to other cells of the plurality of cells scaled by a coverage range of the secondary cell for the uncrewed aerial vehicle.

9 . The method of claim 8 , further comprising:
detecting an additional cell having a pilot signal power that exceeds a pilot signal power of the secondary cell; and initiating a handover from the secondary cell to the additional cell as a new secondary cell, in response to the detecting the additional cell having the pilot signal power that exceeds the pilot signal power of the secondary cell.

10 . The method of claim 6 , further comprising:
allocating at least a second portion of the data traffic of the uncrewed aerial vehicle to the secondary cell.

11 . The method of claim 10 , wherein the at least the second portion of the data traffic comprises payload data traffic of the uncrewed aerial vehicle.

12 . The method of claim 1 , further comprising:
obtaining an identification of the uncrewed aerial vehicle and an indicator of an uncrewed aerial vehicle user equipment type.

13 . The method of claim 12 , wherein the detecting of the capability information of the uncrewed aerial vehicle is performed in response to the obtaining of the indicator of the uncrewed aerial vehicle user equipment type.

14 . The method of claim 1 , further comprising:
obtaining, from the uncrewed aerial vehicle, identifications of the plurality of cells within the communication range of the uncrewed aerial vehicle.

15 . The method of claim 14 , wherein the primary cell is further selected in accordance with at least one signal strength measure associated with at least one reference signal between the uncrewed aerial vehicle and the primary cell.

16 . The method of claim 15 , wherein the obtaining of the identifications of the plurality of cells further comprises:
obtaining respective signal strength information for each of the plurality of cells.

17 . A non-transitory computer-readable medium storing instructions which, when executed by a processing system including at least one processor deployed in a cellular network, cause the processing system to perform operations, the operations comprising:
detecting capability information of an uncrewed aerial vehicle, wherein the capability information includes carrier aggregation capability information, wherein the uncrewed aerial vehicle includes at least one cellular radio for communication with the cellular network; selecting, in accordance with the carrier aggregation capability information of the uncrewed aerial vehicle, a primary cell of the cellular network to serve the uncrewed aerial vehicle, wherein the selecting comprises selecting the primary cell from among a plurality of cells within a communication range of the uncrewed aerial vehicle based on the primary cell having a largest coverage range for the uncrewed aerial vehicle as compared to other cells of the plurality of cells; and transmitting at least a first instruction to assign at least a first portion of data traffic of the uncrewed aerial vehicle to the primary cell, wherein the at least the first portion of the data traffic comprises command and control traffic of the uncrewed aerial vehicle.

18 . The non-transitory computer-readable medium of claim 17 , wherein the operations further comprise:
selecting a secondary cell of the cellular network to serve the uncrewed aerial vehicle, wherein the selecting of the secondary cell comprises selecting the secondary cell from among the plurality of cells within a communication range of the uncrewed aerial vehicle based on the secondary cell having a largest available bandwidth for the uncrewed aerial vehicle as compared to other cells of the plurality of cells; and transmitting at least a second instruction to assign at least a second portion of data traffic of the uncrewed aerial vehicle to the secondary cell, wherein the at least the second portion of the data traffic comprises payload data traffic of the uncrewed aerial vehicle.

19 . An apparatus comprising:
a processing system including at least one processor; and a non-transitory computer-readable medium storing instructions which, when executed by the processing system when deployed in a cellular network, cause the processing system to perform operations, the operations comprising:
detecting capability information of an uncrewed aerial vehicle, wherein the capability information includes carrier aggregation capability information, wherein the uncrewed aerial vehicle includes at least one cellular radio for communication with the cellular network;
selecting, in accordance with the carrier aggregation capability information of the uncrewed aerial vehicle, a primary cell of the cellular network to serve the uncrewed aerial vehicle, wherein the selecting comprises selecting the primary cell from among a plurality of cells within a communication range of the uncrewed aerial vehicle based on the primary cell having a largest coverage range for the uncrewed aerial vehicle as compared to other cells of the plurality of cells; and
transmitting at least a first instruction to assign at least a first portion of data traffic of the uncrewed aerial vehicle to the primary cell, wh

Assignees

• At&T Technical Services Company Inc

Inventors

• Vivanco Daniel

Classifications

• H04B7/18506 Primary

  Communications with or from aircraft, i.e. aeronautical mobile service · CPC title

• H04W36/304

  due to measured or perceived resources with higher communication quality · CPC title

• H04W36/08 Primary

  Reselecting an access point · CPC title