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Title:
INTERFERENCE POWER ESTIMATION METHOD, INTERFERENCE POWER ESTIMATION DEVICE, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/181534
Kind Code:
A1
Abstract:
An interference power estimation device 1 calculates an inter-station vector leading from an interfering station above a sphere to an interfered station installed on the sphere on the basis of the respective positions of the stations. If a line segment connecting the position of the interfered station and the position of the interfering station does not cross the sphere, the interference power estimation device derives an angle formed by an antenna direction vector indicating the direction of an antenna from the position of the interfered station and the inter-station vector, and calculates a sum total of an antenna directivity attenuation amount obtained on the basis of the angle, and a propagation loss calculated on the basis of a distance between the interfered station and the interfering station. Although calculating the sum total with respect to each of a plurality of positions that the interfering station may take, the interference power estimation device 1 does not calculate the sum total if the line segment connecting the position of the interfered station and the position of the interfering station crosses the sphere. The interference power estimation device 1 calculates interference power from the interfering station on the basis of a minimum value of the calculated sum totals.

Inventors:
ITO Kota (9-11 Midori-cho 3-chome, Musashino-sh, Tokyo 85, 〒1808585, JP)
TSUBOI Hideyuki (9-11 Midori-cho 3-chome, Musashino-sh, Tokyo 85, 〒1808585, JP)
IMAIZUMI Yutaka (9-11 Midori-cho 3-chome, Musashino-sh, Tokyo 85, 〒1808585, JP)
SHIRATO Yushi (9-11 Midori-cho 3-chome, Musashino-sh, Tokyo 85, 〒1808585, JP)
KITA Naoki (9-11 Midori-cho 3-chome, Musashino-sh, Tokyo 85, 〒1808585, JP)
Application Number:
JP2019/009083
Publication Date:
September 26, 2019
Filing Date:
March 07, 2019
Export Citation:
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Assignee:
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (5-1 Otemachi 1-chome, Chiyoda-ku Tokyo, 16, 〒1008116, JP)
International Classes:
H04B17/345
Foreign References:
JP2004254239A2004-09-09
JP2011109467A2011-06-02
JP2003018073A2003-01-17
JP2008219077A2008-09-18
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (1-9-2, Marunouchi Chiyoda-k, Tokyo 20, 〒1006620, JP)
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