Systems and methods for defining geofences via height threshold adjustments
Aspects of the subject disclosure may include, for example, identifying a plurality of cells that are located within a threshold distance from location(s) in a designated area, for each cell, defining a respective height threshold that is less than a determined minimum supported aerial UE altitude, based on detecting that an aerial UE has transmitted, to a serving cell, a height-based measurement report that includes information regarding neighboring cells, obtaining data regarding height thresholds associated with the neighboring cells, wherein one or more of the neighboring cells is included in the plurality of cells, determining that each of the one or more of the neighboring cells has a height threshold that is less than the determined minimum supported altitude, and performing an action to prevent each of the one or more of the neighboring cells from being a handover target cell for the aerial UE. Other embodiments are disclosed.
1 . A device, comprising:
a processing system including a processor; and
a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, the operations comprising:
identifying a first plurality of cells that are located within a first threshold distance from one or more locations in a designated area;
for each cell of the first plurality of cells, defining a respective height threshold that is less than a determined minimum supported aerial user equipment (UE) altitude;
based on detecting that an aerial UE has transmitted, to a serving cell, a height-based measurement report that includes information regarding neighboring cells of the serving cell, obtaining data regarding height thresholds associated with the neighboring cells, wherein one or more of the neighboring cells is included in the first plurality of cells;
determining that each of the one or more of the neighboring cells has a height threshold that is less than the determined minimum supported aerial UE altitude; and
performing an action to prevent each of the one or more of the neighboring cells from being a handover target cell for the aerial UE, thereby facilitating adjustment of a flight trajectory of the aerial UE such that the aerial UE avoids approaching the designated area.
2 . The device of claim 1 , wherein the designated area comprises a restricted area, and wherein the first plurality of cells are each capable of supporting aerial UE operations.
3 . The device of claim 1 , wherein the respective height threshold for each cell of the first plurality of cells is also less than a default height threshold associated with that cell.
4 . The device of claim 1 , wherein the determined minimum supported aerial UE altitude is based on:
information regarding an environment or surroundings of one or more of the first plurality of cells;
manufacturer specification data relating to the aerial UE or one or more other aerial UEs;
flight plan or flight trajectory information associated with the aerial UE or one or more other aerial UEs; or
a combination thereof.
5 . The device of claim 1 , wherein the defining the respective height threshold for each cell of the first plurality of cells results in a first geofence formed about the designated area.
6 . The device of claim 5 , wherein a second plurality of cells are located beyond the first threshold distance but within a second threshold distance from the one or more locations in the designated area, and wherein the operations further comprise, for each cell of the second plurality of cells, defining a particular height threshold that is less than the determined minimum supported aerial UE altitude but that is greater the respective height threshold defined for each cell of the first plurality of cells, thereby forming a second geofence about the designated area that is less restrictive than the first geofence.
7 . The device of claim 1 , wherein the operations further comprise obtaining at least a portion of the height-based measurement report from the serving cell.
8 . The device of claim 1 , wherein the aerial UE obtains data regarding a height threshold of the serving cell upon attachment of the aerial UE to the serving cell, and wherein the aerial UE transmits the height-based measurement report to the serving cell based on the aerial UE detecting that an altitude of the aerial UE is greater than or equal to the height threshold of the serving cell.
9 . The device of claim 1 , wherein other cells of the neighboring cells are not included in the first plurality of cells, and wherein the operations further comprise determining that each of the other cells of the neighboring cells has a height threshold that is greater than or equal to the determined minimum supported aerial UE altitude, and permitting each of the other cells of the neighboring cells to be a handover target cell for the aerial UE.
10 . The device of claim 1 , wherein the device comprises or is implemented in a multi-access edge computing (MEC) device, a radio access network (RAN) intelligent controller (RIC), or a Self-Organizing Network (SON).
11 . A method, comprising:
identifying, by a processing system including a processor, a network node that is located within a threshold distance from one or more locations in a restricted area;
defining, by the processing system, a height threshold for the network node that is less than a determined minimum supported aerial user equipment (UE) altitude;
detecting, by the processing system, that an aerial UE has experienced a height-based trigger event in relation to a serving cell of the aerial UE;
based on the detecting, identifying, by the processing system, a neighboring network node of the serving cell and determining that the neighboring network node of the serving cell is the network node that is located within the threshold distance from the one or more locations in the restricted area; and
based on the determining, blacklisting, by the processing system, the neighboring network node from being a candidate handover target for the aerial UE.
12 . The method of claim 11 , wherein the determined minimum supported aerial UE altitude is based on:
information regarding an environment or surroundings of one or more network nodes;
manufacturer specification data relating to the aerial UE or one or more other aerial UEs;
flight plan or flight trajectory information associated with the aerial UE or one or more other aerial UEs; or
combination thereof.
13 . The method of claim 11 , wherein the height threshold is also less than a default height threshold that was previously defined for the network node.
14 . The method of claim 11 , wherein the aerial UE comprises an uncrewed aerial vehicle (UAV) or a drone.
15 . The method of claim 11 , wherein the identifying the neighboring network node of the serving cell is based on a cell ID included in a height-based measurement report that is transmitted by the aerial UE to the serving cell as a result of the height-based trigger event.
16 . A non-transitory machine-readable medium, comprising executable instructions that, when executed by a processing system of an aerial user equipment (UE) including a processor, facilitate performance of operations, the operations comprising:
identifying a first plurality of cells that are located within a first threshold distance from one or more locations in a designated area;
for each cell of the first plurality of cells, defining a respective height threshold that is less than a determined minimum supported aerial user equipment (UE) altitude;
based on detecting that an aerial UE has transmitted, to a serving cell, a height-based measurement report that includes information regarding neighboring cells of the serving cell, obtaining data regarding height thresholds associated with the neighboring cells, wherein one or more of the neighboring cells is included in the first plurality of cells;
determining that each of the one or more of the neighboring cells has a height threshold that is less than the determined minimum supported aerial UE altitude; and
preventing each of the one or more of the neighboring cells from being a handover target cell for the aerial UE, thereby facilitating adjustment of a flight trajectory of the aerial UE such that the aerial UE avoids approaching the designated area.
17 . The non-transitory machine-readable medium of claim 16 , wherein the designated area comprises a restricted area, and wherein the first plurality of cells are each capable of supporting aerial UE operations.
18 . The non-transitory machine-readable medium of claim 16 , wherein the respective height threshold for each cell of the first plurality of cells is also less than a default height threshold associated with that cell.
19 . The non-transitory machine-readable medium of claim 16 , wherein the determined minimum supported aerial UE altitude is based on:
information regarding an environment or surroundings of one or more of the first plurality of cells;
manufacturer specification data relating to the aerial UE or one or more other aerial UEs;
flight plan or flight trajectory information associated with the aerial UE or one or more other aerial UEs; or
combination thereof.
20 . The non-transitory machine-readable medium of claim 16 , wherein the defining the respective height threshold for each cell of the first plurality of cells results in a first geofence formed about the designated area.