# US 12,008,912 B2 · Broadcasting geolocation information in a radio frame transmitted from an unmanned aerial vehicle

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- Number: US 12,008,912 B2
- Document ID: US12008912B2
- Status: Granted
- Kind: B2
- Application number: 17/356,994
- Filed: 2021-06-24
- Published: 2021-10-14
- Granted: 2024-06-11
- Earliest claimed: 2017-03-31
- Assignees: Telefonaktiebolaget LM Ericsson (publ)
- Applicants: Telefonaktiebolaget LM Ericsson (publ)
- Inventors: Heikki Mahkonen; Ravi Manghirmalani; Attila Takacs
- Web page: https://patentgrep.com/patent/US12008912B2

## CPC

- G08G 5/80: Anti-collision systems
- G08G 5/25: Transmission of traffic-related information between aircraft
- G08G 5/26: Transmission of traffic-related information between aircraft and ground stations
- G08G 5/55: for a single aircraft
- G08G 5/57: for unmanned aircraft
- H04L 67/12: specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04W 4/027: {using movement velocity, acceleration information}
- H04W 4/06: Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W 4/42: for mass transport vehicles, e.g. buses, trains or aircraft
- H04W 4/46: for vehicle-to-vehicle communication [V2V]
- H04W 72/30: Resource management for broadcast services
- B64U 2101/20: for use as communications relays, e.g. high-altitude platforms
- B64U 2201/00: UAVs characterised by their flight controls
- B64U 2201/20: Remote controls
- H04W 84/06: Airborne or Satellite Networks (space-based or airborne stations H04B7/185)
- Y02D 30/70: in wireless communication networks
- 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})
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- 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
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## Abstract

Broadcasting geolocation information of an Unmanned Aerial Vehicle (UAV) from the UAV by determining current geolocation of the UAV by communicating with a geolocation service and utilizing the geolocation service to geolocate the UAV. Then the UAV prepares a radio frame that includes geolocation information identifying the current geolocation of the UAV and other information associated with the UAV using a radio protocol of one of a 3rd Generation Partnership Project (3GPP) radio protocol, a WiFi radio protocol, a wireless personal area network protocol and a low-power wide-area network protocol and transmits the radio frame to broadcast the current geolocation of the UAV.

## Claims

### Claim 1

A method for rebroadcasting geolocation information of an Unmanned Aerial Vehicle (UAV) received at a network node of a wireless communication network comprising:
receiving geolocation information and other information associated with the UAV in a radio frame sent in an uplink transmission from the UAV utilizing 3rd Generation Partnership Project (3GPP) radio protocol, wherein the uplink transmission from the UAV is based on the UAV:
determining current geolocation of the UAV by communicating with a geolocation service and utilizing the geolocation service to geolocate the UAV;
preparing a radio frame that includes geolocation information identifying the current geolocation of the UAV, wherein the prepared radio frame is for the 3GPP radio protocol;
preparing other information associated with the UAV for inclusion in the radio frame;
determining whether other vehicles are detected, wherein in an affirmative, waypoint information is added to the other information in the radio frame;
receiving a transmission from a second UAV, wherein a communication protocol used to receive the transmission from the second UAV is different than the 3GPP radio protocol used for transmitting the radio frame by the UAV; and
transmitting the radio frame that includes the geolocation information and the other information, and retransmitting information contained in the transmission received from the second UAV, by including the information contained in the transmission received from the second UAV in the other information of the radio frame, wherein the transmitting the radio frame utilizes the 3GPP radio protocol to broadcast the radio frame;
processing the received radio frame for broadcast to one or more other UAVs; and
transmitting the geolocation information identifying the current geolocation of the UAV and the other information that includes the information contained in the transmission received from the second UAV, as a rebroadcast in a downlink transmission to the one or more other UAVs.

### Claim 2 (depends on 1)

The method of claim 1, wherein the network node is a base station or an access point.

### Claim 3 (depends on 2)

The method of claim 2, wherein the network node employs cloud functionality to perform processing of the received uplink transmission.

### Claim 4 (depends on 1)

The method of claim 1, wherein the radio frame from the UAV provides latitude, longitude, altitude and velocity information pertaining to the current geolocation of the UAV and the latitude, longitude, altitude and velocity information are transmitted in the rebroadcast.

### Claim 5 (depends on 4)

The method of claim 4, wherein the radio frame also includes direction information pertaining to a direction of travel of the UAV and the direction of travel is transmitted in the rebroadcast.

### Claim 6 (depends on 1)

The method of claim 1, wherein transmitting the rebroadcast utilizes a different communication protocol for the downlink transmission than the 3GPP radio protocol.

### Claim 7 (depends on 1)

The method of claim 1, wherein the downlink transmission includes additional information inserted by the network node in the downlink transmission that is associated with the UAV.

### Claim 8 (depends on 1)

The method of claim 1, wherein the transmitting the downlink transmission uses the 3GPP radio protocol.

### Claim 9

A computer-readable storage medium storing instructions which, when executed by a processor of a network node, cause the network node to receive and rebroadcast geolocation information of an Unmanned Aerial Vehicle (UAV) by performing operations comprising:
receiving geolocation information and other information associated with the UAV in a radio frame sent in an uplink transmission from the UAV utilizing 3rd Generation Partnership Project (3GPP) radio protocol, wherein the uplink transmission from the UAV is based on the UAV:
determining current geolocation of the UAV by communicating with a geolocation service and utilizing the geolocation service to geolocate the UAV;
preparing a radio frame that includes geolocation information identifying the current geolocation of the UAV, wherein the prepared radio frame is for the 3GPP radio protocol;
preparing other information associated with the UAV for inclusion in the radio frame;
determining whether other vehicles are detected, wherein in an affirmative, waypoint information is added to the other information in the radio frame;
receiving a transmission from a second UAV, wherein a communication protocol used to receive the transmission from the second UAV is different than the 3GPP radio protocol used for transmitting the radio frame by the UAV; and
transmitting the radio frame that includes the geolocation information and the other information, and retransmitting information contained in the transmission received from the second UAV, by including the information contained in the transmission received from the second UAV in the other information of the radio frame, wherein the transmitting the radio frame utilizes the 3GPP radio protocol to broadcast the radio frame;
processing the received radio frame for broadcast to one or more other UAVs; and
transmitting the geolocation information identifying the current geolocation of the UAV and the other information that includes the information contained in the transmission received from the second UAV, as a rebroadcast in a downlink transmission to the one or more other UAVs.

### Claim 10 (depends on 9)

The computer-readable storage medium of claim 9, wherein the network node is a base station or an access point.

### Claim 11 (depends on 10)

The computer-readable storage medium of claim 10, wherein the network node employs cloud functionality to perform processing of the received uplink transmission.

### Claim 12 (depends on 9)

The computer-readable storage medium of claim 9, wherein the radio frame from the UAV provides latitude, longitude, altitude and velocity information pertaining to the current geolocation of the UAV and the latitude, longitude, altitude and velocity information are transmitted in the rebroadcast.

### Claim 13 (depends on 12)

The computer-readable storage medium of claim 12, wherein the radio frame also includes direction information pertaining to a direction of travel of the UAV and the direction of travel is transmitted in the rebroadcast.

### Claim 14 (depends on 9)

The computer-readable storage medium of claim 9, wherein transmitting the rebroadcast utilizes a different communication protocol for the downlink transmission than the 3GPP radio protocol.

### Claim 15 (depends on 9)

The computer-readable storage medium of claim 9, wherein the downlink transmission includes additional information inserted by the network node in the downlink transmission that is associated with the UAV.

### Claim 16 (depends on 9)

The computer-readable storage medium of claim 9, wherein the transmitting the downlink transmission uses the 3GPP radio protocol.
