Network capacity management

• US 10,277,307 B1
• Filed: 08/10/2018
• Issued: 04/30/2019
• Est. Priority Date: 03/30/2016
• Status: Active Grant

• Current Assignee: Wing Aviation LLC (Alphabet Inc.)
• Original Assignee: Wing Aviation LLC (Alphabet Inc.)
• Inventors: Vos, David, Patton, Andrew, Mullaney, Sean, Motazed, Behnam, Zerweckh, Siegfried
• Primary Examiner(s): Karikari, Kwasi
• Application Number:
  US16/100,837
• Time in Patent Office: 263 Days
• CPC Class Codes: H04B 7/18504 Aircraft used as relay or high altitude atmospheric platform
• CPC Class Codes: H04B 7/18506 Communications with or from aircraft, i.e. aeronautical mobile service
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 84/005 Moving wireless networks
• CPC Class Codes: H04W 84/047 using dedicated repeater stations

Abstract

An example embodiment may involve flying, by an unmanned aerial vehicle (UAV), to a geographical location, where a wireless router is at the geographical location. The example embodiment may also involve detecting, by the UAV, a wireless coverage area defined by the wireless router. The example embodiment may also involve accessing, by the UAV, the wireless coverage area using a network identifier and a password. The example embodiment may also involve establishing, by the UAV, a backhaul link to a data network. The example embodiment may also involve transmitting, by the UAV, a notification to a client device served by the wireless coverage area, where the notification indicates that the UAV is a default gateway for the wireless coverage area. The example embodiment may also involve exchanging, by the UAV, data transmissions between (i) the client device, and (ii) one or more other devices accessible via the data network.

Claims

1. A method comprising:

flying, by an unmanned aerial vehicle (UAV), to a geographical location, wherein a wireless router is at the geographical location;

detecting, by the UAV, a wireless coverage area defined by the wireless router, wherein the wireless coverage area is accessible by way of a network identifier and a password;

joining, by the UAV and by way of the wireless router, the wireless coverage area as a client using the network identifier and the password;

receiving, by the UAV and from the wireless router, an assignment of a first Internet Protocol (IP) address;

establishing, by the UAV, a backhaul link to a data network;

transmitting, by the UAV and by way of the wireless router, a notification to a client device served by the wireless coverage area, wherein the notification indicates that the first IP address assigned to the UAV serves as a default gateway for the wireless coverage area, and wherein the client device has previously used a second IP address of the wireless router as the default gateway, wherein reception of the notification by the client device causes the client device to change its default gateway address to the first IP address, and wherein the client device changing its default gateway address to the first IP address comprises the client device performing a dynamic host configuration protocol (DHCP) renewal operation; and

exchanging, by the UAV, data transmissions between (i) the client device, and (ii) one or more other devices accessible via the data network.

2. The method of claim 1, further comprising:

obtaining, via the data network, the network identifier and the password from a UAV controller device.

3. The method of claim 1, wherein the network identifier and the password are preloaded into the UAV prior to the UAV flying to the geographical location.

4. The method of claim 1, wherein the wireless router is a Wifi router and wherein the wireless coverage area is a Wifi local wireless network.

5. The method of claim 4, wherein the network identifier is a service set identifier (SSID).

6. The method of claim 1, wherein the notification is multicast or broadcast via the wireless coverage area.

7. The method of claim 1, further comprising:

determining, by the UAV, that the UAV is no longer going to serve as the default gateway for the wireless coverage area; and

transmitting, by the UAV, a second notification to the client device, wherein the second notification indicates that the UAV is no longer going to serve as the default gateway for the wireless coverage area.

8. An article of manufacture including a non-transitory computer-readable medium, having stored thereon program instructions that, upon execution by an unmanned aerial vehicle (UAV), cause the UAV to perform operations comprising:

flying to a geographical location, wherein a wireless router is at the geographical location;

detecting a wireless coverage area defined by the wireless router, wherein the wireless coverage area is accessible by way of a network identifier and a password;

joining, by way of the wireless router, the wireless coverage area as a client using the network identifier and the password;

receiving, from the wireless router, an assignment of a first Internet Protocol (IP) address;

establishing a backhaul link to a data network;

transmitting, by way of the wireless router, a notification to a client device served by the wireless coverage area, wherein the notification indicates that the first IP address assigned to the UAV serves as a default gateway for the wireless coverage area, and wherein the client device has previously used a second IP address of the wireless router as the default gateway, wherein reception of the notification by the client device causes the client device to change its default gateway address to the first IP address, and wherein the client device changing its default gateway address to the first IP address comprises the client device performing a dynamic host configuration protocol (DHCP) renewal operation; and

exchanging data transmissions between (i) the client device, and (ii) one or more other devices accessible via the data network.

9. The article of manufacture of claim 8, the operations further comprising:

obtaining, via the data network, the network identifier and the password from a UAV controller device.

10. The article of manufacture of claim 8, wherein the network identifier and the password are preloaded into the UAV prior to the UAV flying to the geographical location.

11. The article of manufacture of claim 8, the operations further comprising:

determining, by the UAV, that the UAV is no longer going to serve as the default gateway for the wireless coverage area; and

transmitting, by the UAV, a second notification to the client device, wherein the second notification indicates that the UAV is no longer going to serve as the default gateway for the wireless coverage area.

12. An unmanned aerial vehicle (UAV) comprising:

a propulsion unit;

a communication unit;

at least one processor;

memory; and

program instructions, stored in the memory, that upon execution by the at least one processor cause the UAV to perform operations comprising;

flying, by way of the propulsion unit, to a geographical location, wherein a wireless router is at the geographical location;

detecting, by way of the communication unit, a wireless coverage area defined by the wireless router, wherein the wireless coverage area is accessible by way of a network identifier and a password;

joining, by way of the communication unit and by way of the wireless router, the wireless coverage area as a client using the network identifier and the password;

receiving, by way of the communication unit and from the wireless router, an assignment of a first Internet Protocol (IP) address;

establishing, by way of the communication unit, a backhaul link to a data network;

transmitting, by way of the communication unit and by way of the wireless router, a notification to a client device served by the wireless coverage area, wherein the notification indicates that the first IP address assigned to the UAV serves as a default gateway for the wireless coverage area, and wherein the client device has previously used a second IP address of the wireless router as the default gateway, wherein reception of the notification by the client device causes the client device to change its default gateway address to the first IP address, and wherein the client device changing its default gateway address to the first IP address comprises the client device performing a dynamic host configuration protocol (DHCP) renewal operation; and

exchanging, by way of the communication unit, data transmissions between (i) the client device, and (ii) one or more other devices accessible via the data network.

13. The UAV of claim 12, the operations further comprising:

obtaining, via the data network, the network identifier and the password from a UAV controller device.

14. The UAV of claim 12, wherein the network identifier and the password are preloaded into the UAV prior to the UAV flying to the geographical location.

15. The UAV of claim 12, the operations further comprising:

determining, by the UAV, that the UAV is no longer going to serve as the default gateway for the wireless coverage area; and

transmitting, by the UAV, a second notification to the client device, wherein the second notification indicates that the UAV is no longer going to serve as the default gateway for the wireless coverage area.