US-12621684-B2 - Control system and control method

US12621684B2US 12621684 B2US12621684 B2US 12621684B2US-12621684-B2

Abstract

Provided are a control system and a control method which are capable of reducing a monitoring load at a time when operation control for base station systems is executed. An exceptional monitoring module ( 38 ) monitors an operation state of a representative base station system of a plurality of base station systems included in a base station system group associated with an operation tendency of base station systems. An operation control module ( 40 ) executes operation control in accordance with the operation state of the representative base station system, for at least one base station system which includes a base station system different from the representative base station system, and is included in the base station system group.

Inventors

Kazushige TAKEUCHI
Masahiro Kojima
Kyungmin Lee
Makoto Ono

Assignees

Rakuten Mobile, Inc.

Dates

Publication Date: 20260505
Application Date: 20210324

Claims (12)

1 . A control system, comprising: at least one processor; and at least one memory device storing instructions which, when executed by the at least one processor, cause the at least one processor to perform operations comprising: monitoring an operation state of a representative base station system of a plurality of base station systems included in a base station system group associated with an operation tendency of base station systems; executing operation control in accordance with the operation state of the representative base station system, for at least one of the plurality of base station systems, which includes a base station system different from the representative base station system, and is included in the base station system group, wherein executing operation control comprises setting a central processing unit (CPU) frequency for the at least one of the plurality of base stations; and predicting, for each of the plurality of base station systems included in the base station system group, a traffic amount in an area covered by the each of the plurality of base station systems, wherein the executing comprises executing, when, for each of the plurality of base station systems included in the base station system group, normal operation control based on the traffic amount predicted for the each of the plurality of base station systems is being executed, exceptional operation control in accordance with the operation state of the representative base station system, for at least one of the plurality of base station systems, which includes a base station system different from the representative base station system, and is included in the base station system group, in response to a state in which a level of the operation state of the representative base station system exceeds a predetermined level.
2 . The control system according to claim 1 , wherein the executing comprises executing the operation control in response to a state in which a value indicating the operation state of the representative base station system satisfies a predetermined condition.
3 . The control system according to claim 1 , wherein the executing comprises executing the operation control in response to a state in which a level of the operation state of the representative base station system exceeds a predetermined level.
4 . A control system, comprising: at least one processor; and at least one memory device storing instructions which, when executed by the at least one processor, cause the at least one processor to perform operations comprising: monitoring an operation state of a representative base station system of a plurality of base station systems included in a base station system group associated with an operation tendency of base station systems; executing operation control in accordance with the operation state of the representative base station system, for at least one of the plurality of base station systems, which includes a base station system different from the representative base station system, and is included in the base station system group, wherein executing operation control comprises setting a central processing unit (CPU) frequency for the at least one of the plurality of base stations; and predicting, for each of the plurality of base station systems included in the base station system group, a traffic amount in an area covered by the each of the plurality of base station systems, wherein the executing comprises executing, when, for each of the plurality of base station systems included in the base station system group, normal operation control based on the traffic amount predicted for the each of the plurality of base station systems is being executed, exceptional operation control in accordance with the operation state of the representative base station system, for at least one of the plurality of base station systems, which includes a base station system different from the representative base station system, and is included in the base station system group, in response to a state in which a difference between an actual traffic amount of the representative base station system and the predicted traffic amount of the representative base station system satisfies a predetermined condition.
5 . The control system according to claim 1 , wherein the operations further comprise classifying a plurality of base station systems into a plurality of base station system groups each associated with an operation tendency of base station systems.
6 . The control system according to claim 5 , wherein the classifying comprises classifying the plurality of base station systems into the plurality of base station system groups based on a characteristic of areas covered by the base station systems.
7 . The control system according to claim 5 , wherein the classifying comprises classifying the plurality of base station systems into the plurality of base station system groups based on a tendency of a traffic transition or a transition of a number of accommodated persons in areas covered by the base station systems.
8 . The control system according to claim 7 , wherein the classifying comprises classifying the plurality of base station systems into the plurality of base station system groups based on a tendency of a traffic amount or a number of accommodated persons in each time period, each day of week, or each day-of-week period in the areas covered by the base station systems.
9 . The control system according to claim 5 , wherein the classifying comprises classifying the plurality of base station systems into the plurality of base station system groups based on a tendency of a traffic transition or a transition of a number of accommodated persons which is associated with a user attribute of users who perform communication in areas covered by the base station systems.
10 . The control system according to claim 1 , wherein the operations further comprise selecting the representative base station system from among the plurality of base station systems included in the base station system group.
11 . The control system according to claim 1 , the executing comprises executing power consumption control.
12 . A control method, comprising: monitoring an operation state of a representative base station system of a plurality of base station systems included in a base station system group associated with an operation tendency of base station systems; executing operation control in accordance with the operation state of the representative base station system, for at least one of the plurality of base station systems, which includes a base station system different from the representative base station system, and is included in the base station system group, wherein executing operation control comprises setting a central processing unit (CPU) frequency for the at least one of the plurality of base stations; and predicting, for each of the plurality of base station systems included in the base station system group, a traffic amount in an area covered by the each of the plurality of base station systems, wherein the executing comprises executing, when, for each of the plurality of base station systems included in the base station system group, normal operation control based on the traffic amount predicted for the each of the plurality of base station systems is being executed, exceptional operation control in accordance with the operation state of the representative base station system, for at least one of the plurality of base station systems, which includes a base station system different from the representative base station system, and is included in the base station system group, in response to a state in which a level of the operation state of the representative base station system exceeds a predetermined level.

Description

RELATED APPLICATIONS The present application is a National Phase of International Application Number PCT/JP2021/012385, filed Mar. 24, 2021. TECHNICAL FIELD The present invention relates to a control system and a control method. BACKGROUND ART In Patent Literature 1, there is described a configuration in which a decrease in communication speed due to lack of resources is suppressed by increasing the number of operating virtual nodes in a partial communication area in which a sudden increase in traffic has occurred. Moreover, in Patent Literature 1, there is described a configuration in which an increase in power consumption of servers is suppressed by reducing the number of operating virtual nodes in a partial communication area in which a sudden decrease in traffic has occurred. CITATION LIST Patent Literature [Patent Literature 1] WO 2017/110678 A1 SUMMARY OF INVENTION Technical Problem When the technology described in Patent Literature 1 is used to execute operation control for base station systems, it is required to monitor, for each base station system, traffic of an area covered by this base station system. Consequently, a monitoring load is high when the number of base station systems is large. The present invention has been made in view of the above-mentioned circumstances, and has an object to provide a control system and a control method which are capable of reducing a monitoring load at a time when operation control for base station systems is executed. Solution to Problem In order to solve the above-mentioned problem, according to one embodiment of the present invention, there is provided a control system including: monitoring means for monitoring an operation state of a representative base station system of a plurality of base station systems included in a base station system group associated with an operation tendency of base station systems; and control means for executing operation control in accordance with the operation state of the representative base station system, for at least one of the plurality of base station systems, which includes a base station system different from the representative base station system, and is included in the base station system group. In one aspect of the present invention, the control means is configured to execute the operation control in response to a state in which a value indicating the operation state of the representative base station system satisfies a predetermined condition. Further, in one aspect of the present invention, the control means is configured to execute the operation control in response to a state in which a level of the operation state of the representative base station system exceeds a predetermined level. As another example, the control system further includes prediction means for predicting, for each of the plurality of base station systems included in the base station system group, a traffic amount in an area covered by the each of the plurality of base station systems, and the control means is configured to execute, when, for each of the plurality of base station systems included in the base station system group, normal operation control based on the traffic amount predicted for the each of the plurality of base station systems is being executed, exceptional operation control in accordance with the operation state of the representative base station system, for at least one of the plurality of base station systems, which includes a base station system different from the representative base station system, and is included in the base station system group, in response to a state in which a level of the operation state of the representative base station system exceeds a predetermined level. As still another example, the control system further includes prediction means for predicting, for each of the plurality of base station systems included in the base station system group, a traffic amount in an area covered by the each of the plurality of base station systems, and the control means is configured to execute, when, for each of the plurality of base station systems included in the base station system group, normal operation control based on the traffic amount predicted for the each of the plurality of base station systems is being executed, exceptional operation control in accordance with the operation state of the representative base station system, for at least one of the plurality of base station systems, which includes a base station system different from the representative base station system, and is included in the base station system group, in response to a state in which a difference between an actual traffic amount of the representative base station system and the predicted traffic amount of the representative base station system satisfies a predetermined condition. Further, in one aspect of the present invention, the control system further includes classification means for classifying a plurality of base station systems into