	US 11,916,610 B2
	Interference evaluation method, interference evaluation apparatus and interference evaluation program
Hideyuki Tsuboi, Musashino (JP); Hideki Toshinaga, Musashino (JP); Kazuto Goto, Musashino (JP); Yushi Shirato, Musashino (JP); and Naoki Kita, Musashino (JP)
Assigned to NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
Appl. No. 17/437,458
Filed by NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
PCT Filed Mar. 11, 2020, PCT No. PCT/JP2020/010411 § 371(c)(1), (2) Date Sep. 9, 2021, PCT Pub. No. WO2020/189423, PCT Pub. Date Sep. 24, 2020.
Claims priority of application No. 2019-048821 (JP), filed on Mar. 15, 2019.
Prior Publication US 2022/0166527 A1, May 26, 2022
Int. Cl. H04W 4/00 (2018.01); H04B 17/336 (2015.01); H04B 17/391 (2015.01); H04W 4/02 (2018.01)

CPC H04B 17/336 (2015.01) [H04B 17/391 (2015.01); H04W 4/02 (2013.01)]

8 Claims

1. An interference evaluation method for evaluating, over an area, radio-wave interference that occurs between a first radio station and a second radio station, the interference evaluation method comprising: a distinguishing step of acquiring information indicating topographic cross-sections of respective azimuths centered about the first radio station, and distinguishing each topographic cross-section into a segment in which there is visibility from the position of the first radio station and a segment in which there is no visibility from the position of the first radio station; and a specification step of specifying a position at which a desired interference amount is reached based on a distance between the first radio station and the second radio station in a segment distinguished as having visibility from the position of the first radio station, and specifying a position at which the desired interference amount is reached by evaluating the radio-wave interference for each square of an evaluation target region segmented into squares in a segment distinguished as having no visibility from the position of the first radio station.