Methods, systems, and devices for detecting cells for unmanned aerial vehicles over mobile networks

Patent metadata

Field	Value
Publication number	US-12464418-B2
Application number	US-202217854673-A
Country	US
Kind code	B2
Filing date	Jun 30, 2022
Priority date	Jun 30, 2022
Publication date	Nov 4, 2025
Grant date	Nov 4, 2025

Abstract

Aspects of the subject disclosure may include, for example, identifying a communication device communicatively coupled to a serving base station, requesting a device type associated with the communication device from the serving base station, and determining the communication device comprises an unmanned aerial vehicle based on the device type. Further embodiments can include generating a customized radio resource control (RRC) reconfiguration message based on the communication device comprising the unmanned aerial vehicle, and transmitting the customized RRC reconfiguration message to the communication device via the serving base station. Other embodiments are disclosed.

First claim

What is claimed is:

1 . A device, comprising:
a processing system including a processor; and a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, the operations comprising: identifying a communication device communicatively coupled to a serving base station;
requesting a device type associated with the communication device from the serving base station;
determining the communication device comprises an unmanned aerial vehicle (UAV) based on the device type;
determining the communication device is located in a dense cell area of a mobile network;
determining a discontinuous sleep state timer value based on the communication device being located in the dense cell area, wherein the discontinuous sleep state timer value indicates how long the UAV is in a discontinuous sleep state to scan for a group of base stations in a vicinity;
generating a customized radio resource control (RRC) reconfiguration message based on the communication device comprising the unmanned aerial vehicle, wherein the customized RRC reconfiguration message includes the discontinuous sleep state timer value; and
transmitting the customized RRC reconfiguration message to the communication device via the serving base station.

2 . The device of claim 1 , wherein the generating of the customized RRC reconfiguration message comprises generating the customized RRC reconfiguration message with a first reportCGI (cell global identifier) object.

3 . The device of claim 2 , wherein the communication device, in response to receiving the customized RRC reconfiguration message with the first reportCGI object, obtaining a unique E-UTRAN (Evolved Universal Terrestrial Radio Access Network) Cell Global Identifier (ECGI) associated with each of a group of neighboring cells resulting in a group of ECGIs, wherein during obtaining the ECGIs, the communication device ceases data transmission and reception with the serving base station while the communication device is reading and decoding ECGI values associated with the group of neighboring cells.

4 . The device of claim 1 , wherein the operations comprise obtaining a first measurement report from the communication device via the serving base station.

5 . The device of claim 4 , wherein the operations comprise identifying a first physical cell identifier (PCI) of a first target base station based on the first measurement report.

6 . The device of claim 5 , wherein the operations comprise initiating a handover to the first target base station for the communication device in response to receiving a request from the communication device via the serving base station to handover to the first target base station.

7 . The device of claim 4 , wherein the generating of the customized RRC reconfiguration message comprises generating the customized RRC reconfiguration message without a first reportCGI object, wherein the operations comprise determining that a second PCI associated with a second target base station from the first measurement report is unknown.

8 . The device of claim 7 , wherein the operations comprise transmitting a HO-reject (handover-reject) message to the communication device via the serving base station.

9 . The device of claim 8 , wherein the communication device automatically changes a first trajectory to avoid a coverage area associated with the second target base station.

10 . The device of claim 8 , wherein the communication device:
request updated navigation from a navigation control device to change a second trajectory to avoid a coverage area associated with the second target base station; receive the updated navigation from the navigation control device; and adjusts the second trajectory based on the updated navigation.

11 . The device of claim 7 , wherein the communication device maintains a geographic location to avoid a coverage area associated with the second target base station in response to determining that the customized RRC reconfiguration message does not include the first reportCGI.

12 . The device of claim 11 , wherein the communication device generates a second measurement report.

13 . The device of claim 1 , wherein the communication device exits a discontinuous sleep state based on receiving an updated customized RRC reconfiguration message indicating the communication device is moving out of the dense cell area.

14 . A method, comprising:
providing, by a serving base station including a processor, an indication to a network management server that a communication device is communicatively coupled to the serving base station; receiving, by the serving base station, from the network management server a request for a device type associated with the communication device; providing, by the serving base station, to the network management server the device type associated with the communication device, wherein the network management server determines that the communication device comprises an unmanned aerial vehicle based (UAV) on the device type; receiving, by the serving base station, from the network management server a customized radio resource control (RRC) reconfiguration message including a discontinuous sleep state timer value that does not include a reportCGI, wherein the network management server generates the RRC reconfiguration message based on the communication device comprising the unmanned aerial vehicle and the communication device's location in a high dense cell area; and transmitting, by the serving base station, the customized RRC reconfiguration message to the communication device, wherein the communication device maintains a geographic location in response to determining that the customized RRC reconfiguration message does not include the reportCGI and enters a discontinuous sleep state based on the discontinuous sleep state timer value, wherein the discontinuous sleep state timer value indicates how long the UAV is in a discontinuous sleep state to scan for a group of base stations in a vicinity.

15 . A non-transitory, machine-readable medium, comprising executable instructions that, when executed by a processing system including a processor, facilitate performance of operations, the operations comprising:
identifying a communication device communicatively coupled to a serving base station; requesting a device type associated with the communication device from the serving base station; determining the communication device comprises an unmanned aerial vehicle (UAV) based on the device type; determining the communication device is located in a dense cell area of a mobile network; determining a discontinuous sleep state timer value based on the communication device being located in the dense cell area, wherein the discontinuous sleep state timer value indicates how long the UAV is in a discontinuous sleep state to scan for a group of base stations in a vicinity; generating a first customized radio resource control (RRC) reconfiguration message with a reportCGI object based on the communication device comprising the unmanned aerial vehicle, wherein the first customized RRC reconfiguration message includes the discontinuous sleep state timer value; and transmitting the first customized RRC reconfiguration message to the communication device via the serving base station.

16 . The non-transitory, machine-readable medium of claim 15 , wherein the operations further comprise obtaining a first measurement report from the communication device via the serving base station.

17 . The non-transitory, machine-readable

Assignees

• At&T Technical Services Company Inc

Inventors

• Vivanco Daniel

Classifications

• H04W36/32

  by location or mobility data, e.g. speed data · CPC title

• H04W36/0079

  in case of hand-off failure or rejection · CPC title

• H04W84/06

  Airborne or Satellite Networks (space-based or airborne stations H04B7/185) · CPC title

• H04W36/083

  wherein at least one of the access points is a moving node · CPC title

• H04W36/0058 Primary

  Transmission of hand-off measurement information, e.g. measurement reports · CPC title