# US 12,192,871 B2 · Techniques for broadcasting emergency information to unmanned aerial vehicles in a wireless communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,192,871 B2 - Document ID: US12192871B2 - Status: Granted - Kind: B2 - Application number: 17/477,389 - Filed: 2021-09-16 - Published: 2022-12-08 - Granted: 2025-01-07 - Earliest claimed: 2021-06-06 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Stephen William Edge; Harish Singh Bisht; Rajesh Kotha; Sandeep Lnu; Vishnu Vardhan Reddy Mende - Web page: https://patentgrep.com/patent/US12192871B2 ## CPC - H04W 4/90: Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS] - H04W 76/50: for emergency connections - H04W 4/021: Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences - H04W 4/029: Location-based management or tracking services - H04W 4/14: Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD] - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 84/06: Airborne or Satellite Networks (space-based or airborne stations H04B7/185) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract The described techniques provide for a wireless base station to receive emergency instructions for aerial UEs from a third party system. The base station may generate a broadcast message including the emergency instructions, associated parameters, and an indication that the broadcast message is for aerial UEs. The base station may transmit a short message indicating aerial UEs to monitor for the broadcast message and may transmit the broadcast message accordingly. An aerial UE may receive the short message and the broadcast message and, based on the indication that the broadcast message is for aerial UEs, may decode emergency information of the broadcast message to obtain the emergency instructions and associated parameters. The aerial UE may perform one or more actions based on the decoded emergency instructions. ## Claims ### Claim 1 A method for wireless communication at an aerial user equipment (UE), comprising: receiving, from a base station of a cellular radio access network, a downlink control information message indicating availability of a broadcast message carrying emergency information; receiving the broadcast message, the broadcast message comprising an indicator identifying that the emergency information is for unmanned aerial vehicles, wherein the broadcast message further comprises an indication of a geodetic 2D area or a geodetic 3D volume; determining whether the aerial UE is inside the geodetic 2D area or the geodetic 3D volume; ignoring the broadcast message if the aerial UE is determined to be not inside the geodetic 2D area or the geodetic 3D volume; decoding the emergency information to obtain emergency instructions based at least in part on the indicator identifying that the emergency information is for unmanned aerial vehicles; and performing one or more actions for unmanned aerial vehicles based at least in part on the emergency instructions. ### Claim 2 (depends on 1) The method of claim 1, wherein the emergency instructions comprise an identifier of the one or more actions. ### Claim 3 (depends on 1) The method of claim 1, wherein the emergency instructions comprise an indicator of one or more parameters for the one or more actions to be performed by the aerial UE. ### Claim 4 (depends on 3) The method of claim 3, wherein the indicator of the one or more parameters for the one or more actions to be performed by the aerial UE comprises an action string. ### Claim 5 (depends on 1) The method of claim 1, further comprising: transmitting, to the base station, a response message in response to receiving the broadcast message and subsequent to performing the one or more actions, wherein the received broadcast message comprises an indicator that the aerial UE is to transmit the response message. ### Claim 6 (depends on 5) The method of claim 5, wherein the response message includes a current location of the aerial UE, a confirmation of the performing of the one or more actions, an identification of the aerial UE, or any combination thereof. ### Claim 7 (depends on 1) The method of claim 1, wherein the indicator comprises a message identifier of the broadcast message. ### Claim 8 (depends on 1) The method of claim 1, wherein the emergency instructions comprise safe landing geodetic coordinates, flight path maps for the aerial UE, an altitude value, or any combination thereof, for the one or more actions to be performed by the aerial UE. ### Claim 9 (depends on 1) The method of claim 1, wherein the downlink control information message comprises a short message, and the broadcast message comprises a system information block eight message including one or more fields associated with unmanned aerial vehicles. ### Claim 10 (depends on 1) The method of claim 1, wherein the one or more actions comprise an altitude correction, a landing procedure, a warning area exit procedure, a homing procedure, or any combination thereof. ### Claim 11 (depends on 1) The method of claim 1, wherein performing the one or more actions further comprises updating one or more target operations of the aerial UE based at least in part on the emergency instructions. ### Claim 12 A method for wireless communication at a base station, comprising: receiving, from a network node, emergency instructions for unmanned aerial vehicles; transmitting, to an aerial user equipment (UE), a downlink control information message indicating availability of a broadcast message carrying emergency information; and transmitting, to one or more aerial UEs, the broadcast message comprising an indicator identifying that the emergency information is for the unmanned aerial vehicles, the emergency information indicating the emergency instructions, wherein the broadcast message further comprises an indication of a geodetic 2D area or a geodetic 3D volume to enable the UE to determine whether the aerial UE is inside the geodetic 2D area or the geodetic 3D volume and to ignore the broadcast message if the aerial UE is determined to be not inside the geodetic 2D area or the geodetic 3D volume. ### Claim 13 (depends on 12) The method of claim 12, wherein the emergency instructions comprise an identifier of one or more actions. ### Claim 14 (depends on 12) The method of claim 12, wherein the emergency instructions comprise an indicator of one or more parameters for one or more actions to be performed by the one or more aerial UEs. ### Claim 15 (depends on 14) The method of claim 14, wherein the indicator of the one or more parameters for the one or more actions to be performed by the aerial UE comprises an action string. ### Claim 16 (depends on 12) The method of claim 12, further comprising: receiving, from at least one of the one or more aerial UEs, one or more response messages in response to an indicator that the one or more aerial UEs are to transmit the one or more response messages, wherein the transmitted broadcast message comprises the indicator that the one or more aerial UEs are to transmit the one or more response messages. ### Claim 17 (depends on 16) The method of claim 16, wherein the one or more response messages include a current location of the aerial UE, a confirmation of the performing of one or more actions, an identification of the aerial UE, or any combination thereof. ### Claim 18 (depends on 12) The method of claim 12, wherein the indicator comprises a message identifier of the broadcast message. ### Claim 19 An apparatus for wireless communication at an aerial user equipment (UE), comprising: a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: receive, from a base station of a cellular radio access network, a downlink control information message indicating availability of a broadcast message carrying emergency information; receive the broadcast message, the broadcast message comprising an indicator identifying that the emergency information is for unmanned aerial vehicles, wherein the broadcast message further comprises an indication of a geodetic 2D area or a geodetic 3D volume; determine whether the aerial UE is inside the geodetic 2D area or the geodetic 3D volume; ignore the broadcast message if the aerial UE is determined to be not inside the geodetic 2D area or the geodetic 3D volume; decode the emergency information to obtain emergency instructions based at least in part on the indicator identifying that the emergency information is for unmanned aerial vehicles; and perform one or more actions for unmanned aerial vehicles based at least in part on the emergency instructions. ### Claim 20 (depends on 19) The apparatus of claim 19, wherein the emergency instructions comprise an identifier of the one or more actions. ### Claim 21 (depends on 19) The apparatus of claim 19, wherein the emergency instructions comprise an indicator of one or more parameters for the one or more actions to be performed by the aerial UE. ### Claim 22 (depends on 19) The apparatus of claim 19, wherein the instructions are further executable by the processor to cause the apparatus to: transmit, to the base station, a response message in response to receiving the broadcast message and subsequent to performing the one or more actions, wherein the received broadcast message comprises an indicator that the aerial UE is to transmit the response message. ### Claim 23 An apparatus for wireless communication at a base station, comprising: a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: receive, from a network node, emergency instructions for unmanned aerial vehicles; transmit, to an aerial user equipment (UE), a downlink control information message indicating availability of a broadcast message carrying emergency information; and transmit, to one or more aerial UEs, the broadcast message comprising an indicator identifying that the emergency information is for the unmanned aerial vehicles, the emergency information indicating the emergency instructions, wherein the broadcast message further comprises an indication of a geodetic 2D area or a geodetic 3D volume to enable the UE to determine whether the aerial UE is inside the geodetic 2D area or the geodetic 3D volume and to ignore the broadcast message if the aerial UE is determined to be not inside the geodetic 2D area or the geodetic 3D volume. ### Claim 24 (depends on 23) The apparatus of claim 23, wherein the emergency instructions comprise an identifier of one or more actions. ### Claim 25 (depends on 23) The apparatus of claim 23, wherein the emergency instructions comprise an indicator of one or more parameters for one or more actions to be performed by the one or more aerial UEs. ### Claim 26 (depends on 23) The apparatus of claim 23, wherein the instructions are further executable by the processor to cause the apparatus to: receive, from at least one of the one or more aerial UEs, one or more response messages in response to an indicator that the one or more aerial UEs are to transmit the one or more response messages, wherein the transmitted broadcast message comprises the indicator that the one or more aerial UEs are to transmit the one or more response messages.