# US 2021/0241632 A1 · Navigation systems and methods for drones > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0241632 A1 - Document ID: US20210241632A1 - Status: Published application - Kind: A1 - Application number: 17/214,985 - Filed: 2021-03-29 - Published: 2021-08-05 - Earliest claimed: 2017-02-24 - Assignees: AT&T Mobility II LLC - Applicants: AT&T Mobility II LLC - Inventors: Damir Mustafic; Haywood S. Peitzer; James A. Wolters, II; Matthew Walsh; Thomas Becker - Web page: https://patentgrep.com/patent/US20210241632A1 ## CPC - G08G 5/32: for flight plan preparation - G08G 5/34: for flight plan modification - G08G 5/53: for cruising - G08G 5/55: for a single aircraft - G08G 5/56: for two or more aircraft - G08G 5/57: for unmanned aircraft - G08G 5/59: in accordance with predefined flight zones, e.g. to avoid prohibited zones - G08G 5/76: for monitoring atmospheric conditions - H04W 48/04: based on user or terminal location or mobility data, e.g. moving direction, speed - H04W 48/08: Access restriction or access information delivery, e.g. discovery data delivery (signalling during connection H04W76/00) - B64U 2101/30: for imaging, photography or videography - B64U 2101/64: for parcel delivery or retrieval - B64U 2201/20: Remote controls - G08G 5/22: located on the ground - G08G 5/727: {from a ground station} - G08G 5/74: for monitoring terrain - H04B 7/18506: {Communications with or from aircraft, i.e. aeronautical mobile service} - H04W 36/0061: {of neighbour cell information} - H04W 36/008375: {based on historical data} - H04W 36/08: Reselecting an access point - G08G: TRAFFIC CONTROL SYSTEMS (guiding railway traffic, ensuring the safety of railway traffic B61L; arrangement of road signs or traffic signals E01F9/00; radar or analogous systems, sonar systems, lidar systems specially adapted for traffic control G01S13/91, G01S15/88, G01S17/88; {radar or analogous systems, sonar systems, lidar systems specially adapted for anti-collision purposes G01S13/93, G01S15/93, G01S17/93}) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - B64U: UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR - H04B: TRANSMISSION ## Abstract Flight plan implementation, generation, and management are facilitated. An example method includes receiving flight plan information including a flight route and a listing of base stations, connecting to a first base station on the listing, determining a first transition point between the first base station and a second base station on the listing based on the flight route, determining whether the first transition point has been reached, maintaining the connection with the first base station when the first transition point has not been reached, transitioning the connection from the first base station to the second base station when the first transition point has been reached, and/or dropping signals received from base stations not on the listing. ## Claims ### Claim 1 A method, comprising: receiving, by an aerial drone comprising a processor, flight plan information comprising a flight route that enables the aerial drone to maintain a network connection during the flight route via base stations in a specified list of base stations that are defined as preferred for enabling the network connection; and flying, by the aerial drone, according to the flight route while maintaining the network connection during the flight route using the base stations. ### Claim 2 (depends on 1) The method of claim 1, wherein the flying comprises: during a portion of the flight route associated with being connected to a base station of the base stations, iteratively adjusting a directional antenna of the aerial drone to point towards a location of the base station as the aerial drone moves along the flight route. ### Claim 3 (depends on 2) The method of claim 2, wherein the flying further comprises: at a transition point during the portion of the flight route, switching from using the directional antenna, to using an omnidirectional antenna of the aerial drone to scan for a next base station of base stations associated with a next portion of the flight route after the portion. ### Claim 4 (depends on 1) The method of claim 1, wherein the flying comprises: during a portion of the flight route associated with a base station of the base stations, ignoring signals from any other base stations of the base stations other than the base station. ### Claim 5 (depends on 1) The method of claim 1, wherein the flying comprises: during a portion of the flight route associated with a first base station of the base stations, ignoring signals from any other base stations of the base stations other than the base station, except for a second base station of the base stations associated with a next portion of the flight route after the portion. ### Claim 6 (depends on 1) The method of claim 1, wherein the flying comprises: during the flight route, ignoring signals from other base stations that are not in the specified list of base stations. ### Claim 7 (depends on 1) The method of claim 1, wherein the flight plan information comprises specified frequency bands respectively associated with defined altitudes, and wherein the flying comprises employing a specified frequency band of the specified frequency bands during a portion of the flight route associated with a defined altitude of the defined altitudes. ### Claim 8 An autonomous aerial vehicle, comprising: a processor; and a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising: determining a flight route that enables the autonomous aerial vehicle to maintain communication via a network during the flight route via access points in a defined group of access points that are specified as favored for enabling the communication via the network; and during a flight, navigating according to the flight route, wherein the communication is maintained via the network during the flight route using the access points. ### Claim 9 (depends on 8) The autonomous aerial vehicle of claim 8, wherein the communication being maintained comprises: during a portion of the flight route associated with an access point of the access points, repeatedly adjusting a directional antenna of the autonomous aerial vehicle to point towards a location of the access point as the autonomous aerial vehicle navigates along the flight route. ### Claim 10 (depends on 9) The autonomous aerial vehicle of claim 9, wherein the communication being maintained further comprises: at a transition area during the portion of the flight route, switching from using the directional antenna, to using an omnidirectional antenna of the autonomous aerial vehicle to scan for a next access point of access points associated with a next portion of the flight route. ### Claim 11 (depends on 8) The autonomous aerial vehicle of claim 8, wherein the communication being maintained comprises: during a portion of the flight route associated with an access point of the access points, ignoring signals from any other access points other than the access point of the access points. ### Claim 12 (depends on 8) The autonomous aerial vehicle of claim 8, wherein the communication being maintained comprises: during a portion of the flight route associated with a first access point of the access points, ignoring signals from any other access points other than the access point of the access points, except for a second access point of the access points associated with a next portion of the flight route. ### Claim 13 (depends on 8) The autonomous aerial vehicle of claim 8, wherein the communication being maintained comprises: during the flight route, ignoring signals from other access points that are not in the defined group of access points. ### Claim 14 (depends on 8) The autonomous aerial vehicle of claim 8, wherein the flight route comprises frequency bands respectively associated with defined altitudes, and wherein the communication being maintained comprises employing a frequency band of the frequency bands during a portion of the flight route associated with maintaining the communication at a defined altitude of the defined altitudes. ### Claim 15 A non-transitory machine-readable medium, comprising executable instructions that, when executed by a processor by an aerial device, facilitate performance of operations, comprising: obtaining a flight plan that enables the aerial device to maintain network connectivity during a route of the flight plan via network devices in a list of network devices that are prioritized for enabling the network connectivity; moving according to the route; and during the moving according to the route, maintaining the network connectivity using the network devices. ### Claim 16 (depends on 15) The non-transitory machine-readable medium of claim 15, wherein maintaining the connectivity comprises: during a segment of the route associated with a network device of the network devices, iteratively adjusting a directional antenna of the aerial device to be directed towards a location of the network device as the aerial device moves along the route. ### Claim 17 (depends on 16) The non-transitory machine-readable medium of claim 16, wherein maintaining the connectivity further comprises: at a handover area during the segment of the route, switching from using the directional antenna, to using an omnidirectional antenna of the aerial device to scan for a next network device of network devices associated with a next segment of the route. ### Claim 18 (depends on 15) The non-transitory machine-readable medium of claim 15, wherein maintaining the connectivity comprises: during a segment of the route associated with a network device of the network devices, ignoring signals from any other network devices. ### Claim 19 (depends on 15) The non-transitory machine-readable medium of claim 15, wherein maintaining the connectivity comprises: during a segment of the route associated with a first network device of the network devices, ignoring signals from any other network devices, except for a second network device of the network devices associated with a next segment of the route. ### Claim 20 (depends on 15) The non-transitory machine-readable medium of claim 15, wherein the maintaining the connectivity comprises: during the route, ignoring signals from other network devices that are not in the list of network devices.