Control apparatus, communication system, control method and program
Provided is a control apparatus in a wireless communication system including the control apparatus and a plurality of base stations, the control apparatus including: an information acquisition unit that acquires position information of one or more specific priority terminals and shield sensing information; a shield map generation unit that generates a shield map based on the shield sensing information; a line-of-sight determination unit that determines whether or not there is a line of sight from an antenna of each base station to each specific priority terminal based on the position information and the shield map; and a base station control unit that controls movable base stations in the plurality of base stations such that the number of specific priority terminals in a line-of-sight state from the plurality of base stations becomes a maximum.
1 . A control apparatus in a wireless communication system including the control apparatus and a plurality of base stations including a movable first base station and a movable second base station, the control apparatus comprising:
a processor; and
a memory that includes instructions, which when executed, cause the processor to execute a method, the method including:
acquiring position information of one or more specific priority terminals and shield sensing information;
generating a shield map based on the shield sensing information;
determining whether or not there is a line-of-sight state based on the position information and the shield map; and
controlling a position of the first base station and a position of the second base station such that a number of the one or more specific priority terminals in the line-of-sight state from both the first base station and the second base station becomes a maximum wherein the number is at least 1,
wherein the line-of-sight state is a state in which the one or more specific priority terminals are connectable to at least one of the base stations.
2 . The control apparatus according to claim 1 , wherein the controlling includes selecting a parameter that maximizes coverage area quality that is quality of a first area covered by the first base station and the second base station from among one or more parameters indicating positions and directions of antenna of each base station such that the number of specific priority terminals in the line-of-sight state from both the first base station and the second base station becomes a maximum wherein the number is at least 1, and controlling the position of the first base station and the position of the second base station by using the parameter.
3 . The control apparatus according to claim 2 , wherein the coverage area quality is a number of coverage area elements in the line-of-sight state from either one of the first base station or the second base station.
4 . The control apparatus according to claim 3 , wherein the coverage area element is the line-of-sight state from the first base station and the second base, the coverage area elements is divided into a plurality of areas,
wherein the second area is smaller than the first area covered by the first base station and the second base station.
5 . A communication system comprising:
the control apparatus according to claim 1 ; and
the plurality of base stations.
6 . A non-transitory computer-readable recording medium having computer-readable instructions stored thereon, which when executed, cause a computer including a memory and a processor to execute the method to function as each unit in the control apparatus according claim 1 .
7 . A control method performed by a computer in a control apparatus in a wireless communication system including the control apparatus and a plurality of base stations including a movable first base station and a movable second base station, the control method comprising:
acquiring position information of one or more specific priority terminals and shield sensing information;
generating a shield map based on the shield sensing information;
determining whether or not there is a line-of-sight state based on the position information and the shield map; and
controlling a position of the first base station and a position of the second base station such that a number of the one or more specific priority terminals in the line-of-sight state from both the first base station and the second base station becomes a maximum wherein the number is at least 1,
wherein the line-of-sight state is a state in which the one or more specific priority terminals are connectable to at least one of the base stations.