Deploying cell on drone or droneap to mitigate radio capacity and coverage issues

• US 9,854,408 B2
• Filed: 02/18/2016
• Issued: 12/26/2017
• Est. Priority Date: 07/10/2015
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Suthar, Om Prakash, Singh, Baljit
• Primary Examiner(s): AKINYEMI, AJIBOLA A
• Application Number:
  US15/046,691
• Publication Number:
  US 20170013476A1
• Time in Patent Office: 677 Days
• Field of Search: 455 671
• CPC Class Codes: B64U 2101/20 for use as communications relays, e.g. high-altitude platforms
• CPC Class Codes: G05D 1/0011 associated with a remote control arrangement
• CPC Class Codes: H04B 7/18506 Communications with or from aircraft, i.e. aeronautical mobile service
• CPC Class Codes: H04L 43/16 Threshold monitoring
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 28/0289 Congestion control load shedding arrangements in network planning H04W16/08; performing reselection for handling the traffic H04W36/22; wireless traffic scheduling H04W72/12
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 4/029 Location-based management or tracking services
• CPC Class Codes: H04W 4/30 Services specially adapted for particular environments, situations or purposes
• CPC Class Codes: H04W 4/40 for vehicles, e.g. vehicle-to-pedestrians [V2P]
• CPC Class Codes: H04W 72/51 based on terminal or device properties
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

Embodiments herein describe a system that includes an autonomous vehicle (referred to herein as a drone) which is controlled by a self-organizing network (SON) to expand the capabilities of a cellular network in real time. In one embodiment, the SON monitors the cellular network and identifies congestion or capacity issues where the cell towers covering the geographic region may be unable to satisfy the large number of requests for data by the users in the region. Once a congestion or capacity issue is detected, the SON determines whether dispatching a drone access point (AP) may improve or resolve the issue. In one example, the drone AP is an autonomous vehicle that includes a radio that permits the drone to serve as a mobile cell site for the cellular network.

Claims

1. A method comprising:

identifying, using a self-organizing network (SON), a performance issue at a geographic region within a cellular network comprising one or more fixed cell sites;

configuring, using the SON, a drone access point (AP) to function as a mobile cell site for the cellular network, wherein the drone AP comprises an unmanned aerial vehicle (UAV), and wherein configuring the drone AP comprises;

generating radio parameters for a radio attached to the drone AP; and

adjusting radio parameters of at least one the fixed cell sites covering the geographic region to compensate for adding the drone AP to the cellular network;

determining a desired location of the drone AP in the cellular network, wherein a coverage area of the drone AP when at the desired location includes at least a portion of the geographic region; and

dispatching the drone AP to the desired location.

2. The method of claim 1, further comprising:

upon determining the drone AP has reached the desired location, activating the radio attached to the drone AP, wherein the radio is configured to function as the mobile cell site for the cellular network.

3. The method of claim 2, further comprising:

after activating the radio, measuring performance indicators corresponding to the geographic region of the cellular network, and

upon determining the performance indicators do not satisfy a congestion threshold, adjusting radio parameters of the radio and at least one of the fixed cell sites covering the geographic region using the SON.

4. The method of claim 1, further comprising:

before launching the drone AP, evaluating performance parameters corresponding to the geographic region to determine a number of drone APs to dispatch.

5. The method of claim 1, further comprising:

after launching the drone AP, evaluating performance parameters corresponding to the geographic region; and

upon determining based on the performance parameters that the performance issue has been resolved, instructing the drone AP to cease operating as the mobile cell site and return to a home base.

6. The method of claim 1, wherein the cellular network comprises a plurality of cell towers, wherein at least one of the cell towers provides coverage to the geographic region, and

wherein the performance issue is based on the at least one cell tower not being able to satisfactory provide wireless service, based on one or more thresholds, to user devices located within the geographic region.

7. The method of claim 1, wherein adjusting the radio parameters of the at least one the fixed cell sites to compensate for adding the drone AP to the cellular network comprises:

adjusting at least one of an output power of a transmitting antenna and a physical orientation of the transmitting antenna in the at least one fixed cell sites to compensate for adding the drone AP to the cellular network.

8. The method of claim 1, further comprising:

before dispatching the drone AP to the desired location, attempting to optimize RF parameters of the one or more fixed cell sites using the SON to resolve the performance issue without dispatching the drone AP.

9. The method of claim 8, wherein the drone AP is dispatched after the SON determines that optimizing the RF parameters did not resolve the performance issue.

10. A computing system, comprising:

a computing processor; and

a SON configured to;

identify a performance issue at a geographic region within a cellular network comprising one or more fixed cell sites,

configure a drone AP to function as a mobile cell site for the cellular network, wherein the drone AP comprises a UAV, wherein configuring the drone AP comprises;

generating radio parameters for a radio attached to the drone AP, and

adjusting radio parameters of at least one the fixed cell sites covering the geographic region to compensate for adding the drone AP to the cellular network,

determine a desired location of the drone AP in the cellular network, wherein a coverage area of the drone AP when at the desired location includes at least a portion of the geographic region, and

dispatch the drone AP to the desired location.

11. The computing system of claim 10, wherein the SON is configured to:

upon determining the drone AP has reached the desired location, activate the radio attached to the drone AP, wherein the radio is configured to function as the mobile cell site for the cellular network.

12. The computing system of claim 11, wherein the SON is configured to:

after activating the radio, measure performance indicators corresponding to the geographic region of the cellular network, and

upon determining the performance indicators do not satisfy a congestion threshold, adjust radio parameters of the radio and at least one of the fixed cell sites covering the geographic region.

13. The computing system of claim 10, wherein the SON is configured to:

before launching the drone AP, evaluate performance parameters corresponding to the geographic region to determine a number of drone APs to dispatch.

14. The computing system of claim 10, wherein the SON is configured to:

after launching the drone AP, evaluate performance parameters corresponding to the geographic region; and

upon determining based on the performance parameters that the performance issue has been resolved, instruct the drone AP to cease operating as the mobile cell site and return to a home base.

15. The computing system of claim 10, wherein the cellular network comprises a plurality of cell towers, wherein at least one of the cell towers provides coverage to the geographic region, and

wherein the performance issue is based on the at least one cell tower not being able to satisfactory provide cellular service, based on one or more thresholds, to user devices located within the geographic region.

16. A communication system, comprising:

a UAV; and

a SON configured to;

identify a performance issue at a geographic region within a cellular network comprising one or more fixed cell sites,

configure the UAV to function as a mobile cell site for the cellular network, wherein configuring the UAV comprises;

generating radio parameters for a radio attached to the UAV, and

adjusting radio parameters of at least one the fixed cell sites covering the geographic region to compensate for adding the UAV to the cellular network,

determine a desired location of the UAV in the cellular network, wherein a coverage area of the UAV when at the desired location includes at least a portion of the geographic region, and

dispatch the UAV to the desired location.

17. The communication system of claim 16, wherein the SON is configured to:

upon determining the UAV has reached the desired location, activate the radio attached to the UAV, wherein the radio is configured to function as the mobile cell site for the cellular network.

18. The communication system of claim 17, wherein the SON is configured to:

after activating the radio, measure performance indicators corresponding to the geographic region of the cellular network, and

upon determining the performance indicators do not satisfy a congestion threshold, adjust radio parameters of the radio and at least one of the fixed cell sites covering the geographic region.

19. The communication system of claim 16, wherein the SON is configured to:

after launching the UAV, evaluate performance parameters corresponding to the geographic region; and

upon determining based on the performance parameters that the performance issue has been resolved, instruct the UAV to cease operating as the mobile cell site and return to a home base.

20. The communication system of claim 16, wherein the cellular network comprises a plurality of cell towers, wherein at least one of the cell towers provides coverage to the geographic region, and

wherein the performance issue is based on the at least one cell tower not being able to satisfactory provide cellular service, based on one or more thresholds, to user devices located within the geographic region.