IP Library › Granted Patent US 12,689,990
Granted Patent B2
US 12,689,990 · App. 18/578,994 · Granted Jul 21, 2026

Base station control system, base station control method, base station control apparatus and program

Inventors: Toshiro Nakahira (Tokyo, JP); Motoharu Sasaki (Tokyo, JP); Daisuke Murayama (Tokyo, JP); Shota Nakayama (Tokyo, JP); Takatsune Moriyama (Tokyo, JP); Yasushi Takatori (Tokyo, JP)
Assignee: NTT, Inc.
H04W52/283H04W64/00
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Quick Facts
Patent No.
US 12,689,990
App. No.
18/578,994
Filed
Jan 12, 2024
Granted
Jul 21, 2026
Kind
B2
Examiner
LE, LANA N
Art Unit
2648
USPC
455/522
Abstract

A base station control system includes a first base station of which a disposition position is not determined, and a base station control device including a memory and a processor configured to: divide an existing second base station and terminals connected to the second base station into clusters through clustering; determine a position corresponding to a cluster not including the second base station among the plurality of clusters as a disposition position of the first base station; calculate the number of first terminals connected to the first base station and the number of second terminals connected to the second base station for each of a plurality of transmission powers of the first base station in a case where the first base station is disposed at the position; and select a transmission power of the first base station based on the number of first terminals and the number of second terminals.

Claims (24)

1 . A base station control system comprising:

a first base station of which a disposition position is not determined; and

a base station control device

including a memory and a processor configured to:

divide an existing second base station and terminals connected to the second base station into clusters through clustering,

determine a position corresponding to a cluster not including the second base station among the plurality of clusters as a disposition position of the first base station,

calculate the number of first terminals connected to the first base station and the number of second terminals connected to the second base station for each of a plurality of transmission powers of the first base station in a case where the first base station is disposed at the position, and

select a transmission power of the first base station based on the number of first terminals and the number of second terminals.

2 . The base station control system according to claim 1 , wherein the second base station is any of the second base stations having a relatively large number of connected terminals among the plurality of existing base stations.

3 . The base station control system according to claim 1 , wherein the processor calculates the number of third terminals that are not connectable to either the first base station or the second base station for each of the plurality of transmission powers of the first base station, and

the processor selects the transmission power of the first base station based on the number of the first terminals, the number of the second terminals, and the number of the third terminals.

4 . The base station control system according claim 1 , wherein the processor further selects the transmission power of the first base station based on a received power of the first terminal from the first base station and a received power of the second terminal from the second base station that are specified for each transmission power in a case where one transmission power cannot be selected.

5 . A base station control method executed by a base station control device including a memory and a processor configured to control a first base station of which a disposition position is not determined, the method comprising:

dividing an existing second base station and terminals connected to the second base station into clusters through clustering;

determining a position corresponding to a cluster not including the second base station among the plurality of clusters as a disposition position of the first base station;

calculating the number of first terminals connected to the first base station and the number of second terminals connected to the second base station for each of a plurality of transmission powers of the first base station in a case where the first base station is disposed at the position; and

selecting a transmission power of the first base station based on the number of first terminals and the number of second terminals.

6 . A non-transitory computer-readable recording medium having computer-readable instructions stored thereon, which, when executed, cause a computer to execute the method according to claim 5 .

7 . A base station control device that controls a first base station of which a disposition position is not determined, the base station control device comprising:

a memory and a processor configured to:

divide an existing second base station and terminals connected to the second base station into clusters through clustering;

determine a position corresponding to a cluster not including the second base station among the plurality of clusters as a disposition position of the first base station;

calculate the number of first terminals connected to the first base station and the number of second terminals connected to the second base station for each of a plurality of transmission powers of the first base station in a case where the first base station is disposed at the position; and

select a transmission power of the first base station based on the number of first terminals and the number of second terminals.

Assignments (2)
CHANGE OF NAME Recorded Aug 15, 2025
From: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
To: NTT, INC.
Reel/Frame 072491/0021 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 12, 2024
From: NAKAHIRA, TOSHIRO; SASAKI, MOTOHARU; MURAYAMA, DAISUKE; NAKAYAMA, SHOTA; MORIYAMA, TAKATSUNE; TAKATORI, YASUSHI
To: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Reel/Frame 066114/0497 →
Continuity (1)
Related Publication 20240323864A1 · Sep 26, 2024
References Cited (38)
US 9185664B2 · Park et al. · 2015 [cited by applicant]
US 9572110B1 · Serfaty · 2017 [cited by examiner]
US 10355835B2 · Oyama · 2019 [cited by applicant]
US 20040131029A1 · Tobe et al. · 2004 [cited by applicant]
US 20060138224A1 · Azami et al. · 2006 [cited by applicant]
US 20080254820A1 · Alpert · 2008 [cited by examiner]
US 20110143806A1 · Song et al. · 2011 [cited by applicant]
US 20120127878A1 · Kim et al. · 2012 [cited by applicant]
US 20130065633A1 · Sridhara et al. · 2013 [cited by applicant]
US 20130082878A1 · Jarvis et al. · 2013 [cited by applicant]
US 20130252604A1 · Huber et al. · 2013 [cited by applicant]
US 20140018084A1 · Sato et al. · 2014 [cited by applicant]
US 20140162686A1 · Lee et al. · 2014 [cited by applicant]
US 20150117183A1 · Heo et al. · 2015 [cited by applicant]
US 20150124720A1 · Morimoto et al. · 2015 [cited by applicant]
US 20150146638A1 · Ohwatari et al. · 2015 [cited by applicant]
US 20150156640A1 · Nguyen et al. · 2015 [cited by applicant]
US 20150280888A1 · Karsi et al. · 2015 [cited by applicant]
US 20160308635A1 · Zhou et al. · 2016 [cited by applicant]
US 20170142664A1 · Seo · 2017 [cited by examiner]
US 20170245287A1 · Lee et al. · 2017 [cited by applicant]
US 20170303209A1 · Na · 2017 [cited by applicant]
US 20180184303A1 · Egner et al. · 2018 [cited by applicant]
US 20190281500A1 · Cummings · 2019 [cited by examiner]
US 20210226650A1 · Zhao et al. · 2021 [cited by applicant]
US 20210385793A1 · Abotabl · 2021 [cited by examiner]
US 20220365163A1 · Baek · 2022 [cited by examiner]
US 20230189169A1 · Vivanco et al. · 2023 [cited by applicant]
US 20230217376A1 · Yang · 2023 [cited by examiner]
US 20240323864A1 · Nakahira et al. · 2024 [cited by applicant]
JP 2018195928 · 2018 [cited by applicant]
Takuto Arai et al., “Adaptive Movable Access Point System for Offloading Efficiency Enhancement”, Technical Research Report of the Institute of Electronics, Information and Communication Engineers (IEICE), vol. 116, No.… [cited by applicant]
Wi-fi Alliance, https://www.wi-fi.org/ja/discover-wi-fi/wi-fi-location, Searched on Dec. 25, 2023. [cited by applicant]
U.S. Appl. No. 18/294,703 filed Feb. 2, 2022, US20250106782A1, Ntt, Inc. [cited by applicant]
U.S. Appl. No. 18/683,401 filed 2024/02/13, US20240349201A1, NTT, Inc. [cited by applicant]
Office Action mailed on Jan. 29, 2026 with respect to the related U.S. Appl. No. 18/579,005. [cited by applicant]
Notice of Allowance mailed on Mar. 24, 2026 with respect to the related U.S. Appl. No. 18/294,703. [cited by applicant]
Notice of Allowance mailed on Mar. 3, 2026 with respect to the related U.S. Appl. No. 18/683,401. [cited by applicant]