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EP-4040693-B1 - APPARATUS AND METHOD FOR CONTROLLING SIGNAL QUALITY OF ANTENNA

EP4040693B1EP 4040693 B1EP4040693 B1EP 4040693B1EP-4040693-B1

Inventors

  • KIM, DUK YONG
  • YUN, MIN SEON

Dates

Publication Date
20260506
Application Date
20200929

Claims (7)

  1. An apparatus for controlling signal quality of an antenna (1), the apparatus comprising: a communication unit (120) configured to receive signal quality measurement data from a plurality of terminal devices (20) disposed at predetermined positions within a network; a signal quality calculation unit (100) configured to calculate a signal quality measurement value of an antenna (1) based on the signal quality measurement data received from any one of the plurality of terminal devices (20); and a rotation determination unit (150) configured to compare a target signal quality value of the antenna (1) with the calculated signal quality measurement value and determine a rotation direction and an angle of the antenna (1) on the basis of a difference value between the target signal quality value and the signal quality measurement value, wherein a rotation of a clamping device (10) is adjusted on the basis of an adjustment signal including information on the determined rotation direction and the determined angle of the antenna (1), further comprising: a control unit (110) configured to transmit the adjustment signal to the clamping device (10) to adjust a rotation of the antenna (1), wherein the rotation determination unit (150) determines that the signal quality of the antenna (1) does not satisfy a target value and determines a rotation angle in a leftward/rightward direction of the antenna (1) when the difference value is not 0 or deviates from a predetermined error range, wherein the control unit (110) requests again the signal quality measurement data in a predetermined order from any one of the plurality of terminal devices (20) when the signal quality of the antenna (1) does not satisfy the target value after the rotation angle in the leftward/rightward direction of the antenna (1) is adjusted on the basis of the signal quality measurement data sequentially received from the plurality of terminal devices (20), wherein the rotation determination unit (150) determines a rotation angle in an upward/downward direction of the antenna (1) when the signal quality measurement data received from the terminal device (20) are data received again.
  2. The apparatus of claim 1, wherein the control unit (110) requests the signal quality measurement data in the predetermined order from any one of the plurality of terminal devices (20), and the control unit (110) requests the signal quality measurement data from the next terminal device (20) after the rotation of the antenna (1) is adjusted on the basis of the adjustment signal.
  3. The apparatus of claim 2, wherein the rotation determination unit (150) determines a rotation direction of the antenna (1) as a direction identical to a previously determined rotation direction when a second difference value between the target signal quality value of the antenna (1) and a signal quality measurement value calculated on the basis of the signal quality measurement data received from the next terminal device (20) is smaller than a first difference value calculated previously, and wherein the rotation determination unit (150) determines a rotation direction of the antenna (1) as a direction opposite to the previously determined rotation direction when the second difference value is equal to or larger than the first difference value calculated previously.
  4. The apparatus of claim 1, wherein the control unit (110) determines to stop the rotation of the antenna (1) when the signal quality of the antenna (1) satisfies the target value after the rotation angle in the leftward/rightward direction of the antenna (1) is adjusted on the basis of the signal quality measurement data sequentially received from the plurality of terminal devices (20).
  5. The apparatus of claim 1, wherein the clamping device (10) comprises: a tilting unit to which the antenna (1) is coupled to be tiltable in an upward/downward direction; and a rotation unit to which the antenna (1) is coupled to be rotatable in a leftward/rightward direction, and wherein the control unit (110) transmits the adjustment signal to the clamping device (10), tilts the antenna (1) in the upward/downward direction by using the tilting unit, and rotates the antenna (1) in the leftward/rightward direction by using the rotation unit.
  6. The apparatus of claim 5, wherein when the clamping device (10) receives the adjustment signal, the clamping device (10) operates a tilting rotation motor included in the tilting unit and configured to electrically operate to tilt the tilting unit in the upward/downward direction, and the clamping device (10) operates a rotating rotation motor included in the rotation unit and configured to electrically operate to rotate the rotation unit in the leftward/rightward direction.
  7. A method of controlling signal quality of an antenna (1), the method comprising: requesting signal quality measurement data in a predetermined order from any one of a plurality of terminal devices (20) disposed at predetermined positions within a network; calculating a signal quality measurement value of the antenna (1) on the basis of the signal quality measurement data received from any one of the terminal devices (20); comparing a target signal quality value of the antenna (1) with the calculated signal quality measurement value and determining a rotation direction and an angle of the antenna (1) on the basis of a difference value between the target signal quality value and the signal quality measurement value; and transmitting an adjustment signal including information on the rotation direction and the determined angle of the determined antenna (1) to a clamping device (10) configured to adjust a rotation of the antenna (1), determining that the signal quality of the antenna (1) does not satisfy a target value and determines a rotation angle in a leftward/rightward direction of the antenna (1) when the difference value is not 0 or deviates from a predetermined error range, request again the signal quality measurement data in a predetermined order from any one of the plurality of terminal devices (20) when the signal quality of the antenna (1) does not satisfy the target value after the rotation angle in the leftward/rightward direction of the antenna (1) is adjusted on the basis of the signal quality measurement data sequentially received from the plurality of terminal devices (20), determining a rotation angle in an upward/downward direction of the antenna (1) when the signal quality measurement data received from the terminal device (20) are data received again.

Description

[Technical Field] The present invention relates to an apparatus and method for controlling signal quality of an antenna, and more particularly, to an apparatus and method for controlling signal quality of an antenna, which are capable of easily adjusting a rotation angle of an antenna and providing signal quality of the antenna at a high level of satisfaction. [Background Art] In the related art, a signal measurement device measures signal quality while being moved within a network by a vehicle in order to optimize the network of a mobile communication base station. In this case, the network is optimized by adjusting an angle of an antenna by manually inputting vertical and/or horizontal angle adjustment values for the antenna on the basis of the signal quality measured by the signal measurement device. However, in the related art, there is an inconvenience of having to input the calculated vertical and/or horizontal angle adjustment values one by one and manually adjusting the angles of the antenna. Further, because the vehicle needs to move each time the signal measurement device measures signals, there is a problem in that a large amount of time is required to adjust signal quality and it is difficult to measure the signal quality when the vehicle does not move. US 2011/287771 A1 illustrates for example a base station forming a cell based on a value of a radio parameter includes a reception unit configured to receive a signal transmitted from a mobile terminal communicating with the base station, and a processor configured to adjust a value of a radio parameter of the base station based on first and second reception qualities of the mobile terminal, where the first reception quality is a value of a reception quality of a transmission signal of the base station and the second reception quality is a value of a reception quality of a transmission signal of another base station. JP 2005 051409 A relates to an antenna device is provided with an antenna device for a base station provided with a lengthy antenna element, and an upper mounting part and a lower mounting part for mounting the antenna device for the base station to a column. The antenna element is supported to be tiltable so as to be inclined to the column by the upper mounting part and the lower mounting part. The upper mounting part is driven by a motor so as to change an inclination angle of the antenna element to the column. WO 2018/049838 A1 concerns an antenna angle adjusting device, comprising: a downtilt adjusting apparatus, comprising an upper pitching assembly and a lower pitching assembly disposed separately in an axial direction; an azimuth adjusting apparatus comprising an upper rotating assembly and a lower rotating assembly disposed separately in an axial direction; a first mounting seat for connecting the upper pitching assembly and the upper rotating assembly, the first mounting seat comprising a first shaft hole opened in an axial direction and a second shaft hole opened in a radial direction; and a second mounting seat for connecting the lower pitching assembly and the lower rotating assembly, the second mounting seat comprising a third shaft hole opened in an axial direction and a fourth shaft hole opened in a radial direction. [Disclosure] [Technical Problem] An object of the present invention is to provide an apparatus and method for controlling signal quality of an antenna, which are capable of easily adjusting a rotation angle of an antenna by determining a rotation direction and an angle of a rotation unit and/or a tilting unit of the antenna on the basis of signal quality measured by a terminal device disposed at a predetermined position and outputting the rotation direction and the angle of the rotation unit and/or the tilting unit of the antenna to a clamping device at the time of adjusting the angle of the rotation unit and/or the tilting unit of the antenna by using the clamping device. Another object of the present invention is to provide an apparatus and method for controlling signal quality of an antenna, which are capable of providing signal quality of the antenna at a high level of satisfaction by sequentially adjusting leftward and rightward rotations of the antenna with respect to terminal devices disposed at different positions within a network and sequentially adjusting upward and downward rotations when a target value is not satisfied. Technical problems of the present invention are not limited to the aforementioned technical problems, and other technical problems, which are not mentioned above, may be clearly understood by those skilled in the art from the following descriptions. [Technical Solution] The invention is defined in the independent claims. Further advantageous embodiments are defined in the dependent claims. [Advantageous Effects] According to the present invention, it is possible to easily adjust a rotation angle of an antenna by determining a rotation direction and an angle of a rotation unit an