JP5684071B2 - Small base station, small base station control method and program - Google Patents

Description

  The present invention relates to a small base station that can be moved and installed, a control method for a small base station, and a program.

  There is a small mobile base station that can be installed indoors such as a general house or a store and relays communication between a communication terminal device such as a mobile phone located in a relatively narrow wireless communication area in the indoor area and an external communication network. Known (see, for example, Patent Documents 1 and 2). This small base station wirelessly communicates with a mobile communication terminal such as a mobile phone located in the area within a wireless communication area narrower than that of a normal macro cell, and the mobile base station via an analog or digital public line or the Internet. It is connected to a communication network and relays communication between the mobile communication terminal and the mobile communication network.

  Since the small base station is configured to be mobilely installed, there is a possibility that the user moves from a preset initial installation location to another location. However, at the location where the small base station has been moved, the use of the small base station is not permitted because it has not been pre-delivered to the supervisory authority, or the small base station is used for wireless communication. In some cases, the frequency and electric field strength of radio waves are not permitted by the Radio Law or related ministerial ordinances.

  Conventionally, in order to restrict the mobile installation of small base stations, fixed installation work of small base stations by contractors has been performed. For example, to connect a small base station to a predetermined length cable installed at a predetermined location, to fix the small base station to the initial installation location with wires or screws, or to connect to a core network provided at the initial installation location A small base station is connected to a predetermined length of cable.

  Also, in cited document 3, a base station OPS (operation system) for managing the installation location of a small base station is provided on the communication network, and the base station OPS is installed in a location where the small base station is registered in advance. Information is compared with the call processing connection information and GPS information notified from the small base station, and it is determined whether or not a predetermined threshold is exceeded from the installation position information. A small base station installation location management system that performs processing for stopping use of a station is disclosed.

However, if the fixed installation work by the small base station vendor is performed, the work cost becomes high, and the fixed installation work by the vendor is required every time the small base station is installed at a location desired by the user. Lack.
Further, in the small base station installation location management system disclosed in the cited document 3, a base station OPS for managing the installation location of the small base station is provided on the communication network, and from the base station OPS on the communication network side. It needs to be managed remotely, and the operation cost is high.

  The present invention has been made under the above background, and the object thereof is set in advance without going through remote management from the communication network side while reducing costs and improving user convenience. The present invention provides a small base station, a small base station control method, and a program capable of efficiently restricting the use of the mobile terminal by moving outside a predetermined allowable range based on the installation location.

A small-sized base station according to the present invention is a small-sized base station that can be installed and used in a wireless communication network, and external power supply means for supplying external power via a power cable and supply of the external power are cut off. Detection means for detecting that the current position information acquisition means for acquiring current position information of the small base station, and when the detection means detects that the external power supply is cut off, It is determined whether the current position information of the small base station acquired by the position information acquisition means is within a predetermined allowable range based on the initial installation location of the small base station, and the current position information of the small base station Is determined to be within the predetermined allowable range, the radio transmission function of the small base station is enabled, and the current position information of the small base station is determined to be outside the predetermined allowable range. Comprises a control means for disabling the radio wave transmission function of the small base station.
In the small base station, the control means disables the radio wave transmission function of the small base station once when the detection means detects that the external power supply is cut off, and then the small base station It may be determined whether the current position information is within the predetermined allowable range.
In the small base station, the current position information acquisition means is an external device capable of communicating with the main body of the small base station via wired or wireless short-range communication, and the control means includes the current position information. When the current position information cannot be acquired by the acquisition means, the radio wave transmission function of the small base station may be disabled.
The small base station further includes an acceleration detection means for detecting an acceleration of the small base station, and the control means detects that the external power supply is cut off by the detection means, and the acceleration detection When a vibration exceeding a predetermined threshold is detected based on the detection result of the means, it may be determined whether or not the current position information of the small base station is within the predetermined allowable range.

A control method for a small base station according to the present invention is a method for controlling a mobile base station that can be installed in a wireless communication network, and detects that the supply of external power to the small base station is cut off. When determining that the current position information of the small base station is within the predetermined allowable range, and when determining that the current position information of the small base station is within the predetermined allowable range. Enabling the radio transmission function of the small base station, and disabling the radio transmission function of the small base station when it is determined that the current position information of the small base station is outside the predetermined allowable range Steps.
The program according to the present invention is a program executed by a processor provided in a mobile small mobile base station used in a wireless communication network, and supply of external power to the mobile base station is cut off. Is detected, it is determined that the current position information of the small base station is within the predetermined allowable range, and the current position information of the small base station is determined to be within the predetermined allowable range. Control to enable the radio transmission function of the small base station, and disable the radio transmission function of the small base station when it is determined that the current position information of the small base station is outside the predetermined allowable range The control is executed by the processor.

In the present invention, when it is detected that the external power supply to the small base station is cut off, it is highly likely that the small base station has been moved and installed. It is determined whether the information is within a predetermined allowable range based on the initial installation location of the small base station. Therefore, compared with the case where the current position of the small base station is constantly monitored to determine whether it is within a predetermined allowable range, the acquisition of the current position information and the transmission function restriction control based on the current position information are efficiently performed. It can be carried out.
Furthermore, in the present invention, when it is determined that the current position information of the small base station is within a predetermined allowable range, the small base station enables the radio wave transmission function. On the other hand, when it is determined that the current position information of the small base station is outside the predetermined allowable range, the small base station disables the radio wave transmission function. Since the radio wave transmission function is autonomously restricted when the small base station is outside the predetermined allowable range in this way, it is possible to use a preset installation location as a reference without using remote management from the communication network side. Therefore, it is possible to limit the use by moving and installing outside the predetermined allowable range.
Further, according to the present invention, it is not necessary to perform a small base station fixed installation work by a contractor for restricting the mobile base station mobile installation, so that it is possible to reduce costs and improve user convenience.
As described above, according to the present invention, it is possible to reduce the cost and improve the user convenience, and without using a remote management from the communication network side, a predetermined setting based on a preset installation location. There is an effect that it is possible to efficiently limit the use of the small base station which is moved and installed outside the allowable range.

The block diagram which shows an example of schematic structure of the small base station which concerns on one Embodiment of this invention. The flowchart which shows an example of the control at the time of the initial installation of the same small base station. The flowchart which shows an example of the transmission function restriction | limiting control at the time of the movement installation of the same small base station. The flowchart which shows the other example of transmission function restriction | limiting control at the time of the mobile installation of the same small base station. The block diagram which shows an example of schematic structure of the small base station which concerns on other embodiment of this invention. The flowchart which shows an example of the transmission function restriction | limiting control at the time of the movement installation of the same small base station. The block diagram which shows an example of schematic structure of the small base station which concerns on further another embodiment of this invention. The flowchart which shows an example of the transmission function restriction | limiting control at the time of the movement installation of the same small base station.

  Hereinafter, an embodiment of a small base station according to the present invention will be described. In this embodiment, a small base station that is a communication relay means between a mobile communication terminal and a communication network is installed in, for example, a general household, and the small base station and the mobile communication terminal existing in the general home are predetermined. A wireless communicable area capable of wireless communication with a frequency and a communication format is formed. Since the small base station is provided so as to cover a femto cell smaller than a cell covered by a wide-area macro cell base station in the mobile communication network, it may be called a “femto base station”. The small base station is connected to the mobile communication network via a line terminating device and a broadband public communication line such as an ADSL (Asymmetric Digital Subscriber Line) line or an optical line.

  FIG. 1 is a block diagram showing an example of a schematic configuration of a small base station according to an embodiment of the present invention. The small base station 20 includes, for example, a processor (CPU) that can execute a program, an internal storage device such as a memory, an external storage device such as a hard disk, a communication processing device, and hardware such as an antenna. By reading a predetermined program stored in the storage device and executing it by the CPU, the following functions of the respective units can be realized.

  The small base station 20 includes a main control unit 201, a wireless communication unit 202, a data storage unit 203, a network side communication unit 204, a GPS reception unit 205, and an external power supply unit 206. The small base station 20 includes an internal power supply unit (not shown). The main control unit 201 controls each unit by transmitting / receiving control data and the like to / from other units such as the wireless communication unit 202. The wireless communication unit 202 can communicate with the mobile communication terminal 10 by wireless communication with a predetermined frequency and communication method.

  The data storage unit 203 is composed of the storage device, and stores various information for relaying communication between the mobile communication terminal 10 and the mobile communication network. In addition, the data storage unit 203 stores data of each range of latitude and longitude, which is a predetermined allowable range based on the initial installation location of the small base station 20.

  The network side communication unit 204 establishes a virtual private network (VPN: Virtual Private Network) based on a predetermined communication protocol such as IPsec or PPPoE between the line termination device 90 and a public communication line (not shown). The communication processing is performed to transmit and receive data through the virtual dedicated line. The network side communication unit 204 can communicate with various servers and nodes such as a small base station core network of a mobile communication network.

  The GPS receiving unit 205 receives the radio signal from the GPS satellite 50, thereby acquiring the current position information (latitude and longitude information) of the small base station in which the GPS receiving unit 205 is incorporated. To function as.

  The external power supply unit 206 functions as an external power supply unit that supplies power from an external power line (AC line) via the power cable 206a. The length L1 of the power cable 206a is set to about several meters, for example. The external power supply unit 206 can convert the power received via the power cable 206a into a predetermined DC voltage as necessary, and supply it to each part in the small base station via an internal power supply line (not shown). . The external power supply unit 206 includes a voltage sensor that detects an AC voltage applied via the power cable 206a, and detects that the power cable has been disconnected based on the voltage detected by the voltage sensor. Can do. For example, when the detection voltage of the voltage sensor is a normal AC voltage (for example, 100V), the plug of the power cable 206a is connected to the outlet of the external power line (AC line). On the contrary, when the detection voltage of the voltage sensor is 0V, the plug of the power cable 206a is disconnected from the outlet of the external power line (AC line). That is, the external power supply unit 206 provided with such a voltage sensor is in a state in which the external power supply cable 206a is assumed to move outside a predetermined allowable range based on the initial installation location of the small base station 20. It also functions as a detection means for detecting that the supply of external power via the external power cable 206a due to the disconnection of the power supply is cut off. Note that the case where the supply of external power is cut off includes not only the case where the plug of the power supply cable 206a is disconnected from the outlet of the external power supply line but also the case of a power failure in which the power supply in the external power supply line is stopped.

  The internal power supply unit functions as internal power supply means for supplying power from an internal power supply (for example, a built-in battery). This internal power supply unit is controlled by the main control unit 201.For example, when the power supply from the external power supply unit 206 cannot be performed, for example, when the power cable 206a is disconnected from the outlet and the external power supply is cut off, Power from an internal power source (for example, a built-in battery) can be converted into a predetermined DC voltage as necessary, and supplied to each part in the small base station via an internal power supply line (not shown).

The main control unit 201 also functions as a control unit that performs the following transmission function control (1) to (3).
(1) When it is detected that the supply of external power from the external power supply unit 206 is cut off, the current position information (latitude and longitude) of the small base station 20 acquired by the GPS receiving unit 205 is predetermined. It is determined whether it is within the permissible range (predetermined latitude and longitude range).
(2) When it is determined that the current position information (latitude and longitude) of the small base station 20 is within the predetermined allowable range, the radio wave transmission function in the wireless communication unit 202 of the small base station 20 is enabled.
(3) When it is determined that the current position information of the small base station 20 is outside the predetermined allowable range, the radio wave transmission function in the wireless communication unit 202 of the small base station 20 is invalidated.

First, control at the time of initial installation, which is a premise of transmission function restriction control at the time of mobile installation in the small base station 20 of the present embodiment, will be described.
FIG. 2 is a flowchart showing an example of control at the time of initial installation of the small base station 20 of the present embodiment. When the small base station 20 is installed at a predetermined predetermined installation location and the power is turned on (S101, S102), the main control unit 201 acquires current position information (latitude and longitude) by the GPS reception unit 205. (S103). Next, the main control unit 201 uses a predetermined allowable range (latitude) based on the initial location of the small base station in which the current position information (latitude and longitude) by the GPS receiving unit 205 is stored in the data storage unit 203. And the range of each of the longitudes) (S104). Here, when the current position information is within a predetermined allowable range (Yes in S104), the main control unit 201 controls to enable the radio wave transmission function in the wireless communication unit 202 of the small base station 20 (S105). ). On the other hand, when the current position information is outside the predetermined allowable range (No in S104), the main control unit 201 determines that the small base station 20 is not installed at the predetermined installation location, and the small base station 20 Control is performed to disable the radio wave transmission function in the wireless communication unit 202 (S106).

Hereinafter, transmission function restriction control during mobile installation in the small base station 20 of the present embodiment will be described.
FIG. 3 is a flowchart illustrating an example of the transmission function restriction control when the small base station 20 according to the present embodiment is installed.
In this control example, when the external power supply unit 206 detects that the external power supply unit 206 has disconnected the plug of the power cable 206a from the outlet of the external power line (AC line) (S201), the main control unit 201 It is determined that there is a high possibility that the station 20 has been moved and installed, and control is performed so as to execute an acquisition process of current position information (latitude and longitude) by the GPS receiving unit 205 (S202). Next, the main control unit 201 uses a predetermined allowable range (latitude) based on the initial location of the small base station in which the current position information (latitude and longitude) by the GPS receiving unit 205 is stored in the data storage unit 203. And the range of each of the longitudes) (S203). Here, when the current position information is within a predetermined allowable range (Yes in S203), the main control unit 201 enables the radio wave transmission function in the radio communication unit 202 of the small base station 20, that is, the small base station. Control is performed such that radio waves can be transmitted to the mobile communication terminal 10 located in the area (cell) of the station 20 (S204). On the other hand, when the current position information is outside the predetermined allowable range (No in S203), the main control unit 201 determines that the small base station 20 has been moved and installed, and the radio wave in the wireless communication unit 202 of the small base station 20 Control is performed such that the transmission function is disabled, that is, radio waves cannot be transmitted to the mobile communication terminal 10 (S205).

FIG. 4 is a flowchart illustrating another example of the transmission function restriction control when the small base station 20 according to the present embodiment is installed. In the control example of FIG. 4, detailed description of the control parts (S301, S303 to S306) similar to those of FIG. 3 is omitted.
In this control example, when the external power supply cutoff is detected by the external power supply unit 206 (S301), the main control unit 201 determines that there is a high possibility that the small base station 20 has been moved and installed, Before acquisition, control is performed so that the radio wave transmission function in the wireless communication unit 202 of the small base station 20 is temporarily disabled, that is, radio wave transmission to the mobile communication terminal 10 cannot be performed (S302).
According to this control example, the radio wave transmission function can be stopped more quickly when there is a high possibility that the small base station 20 has been moved and installed.

FIG. 5 is a block diagram showing an example of a schematic configuration of a small base station according to another embodiment of the present invention. In FIG. 5, the same components as those in FIG.
The small base station 20 of the present embodiment is not provided with a built-in GPS receiver, but is connected between the main body of the small base station 20 and a GPS receiver 30 which is an external device as a current position acquisition unit. A short-range communication unit 208 is provided to enable distance communication. Here, examples of the wired short-distance communication include communication via a USB cable having a predetermined length L2 (for example, several meters). In this case, if the GPS receiver 30 and the short-range communication unit 208 of the small base station 20 are connected by a USB cable having a predetermined length, short-range communication can be performed between the two. Examples of wireless short-range communication include communication using Bluetooth (registered trademark) and specific power-saving wireless. In this case, if the distance between the GPS receiver 30 and the short-range communication unit 208 of the small base station 20 is within a communication range (for example, several meters to several tens of meters) by Bluetooth or specific power-saving radio, the short-range between the two. Communication can be performed.
In addition, the short-range communication unit 208 detects that the short-range communication with the GPS receiver 30 that is an external device has been stopped, so that a predetermined allowable range based on the initial installation location of the small base station 20 is satisfied. It also has a function as detection means for detecting a change in state of the small base station 20 that has changed to a state in which movement toward the outside is assumed.

FIG. 6 is a flowchart showing still another example of the transmission function restriction control when the small base station 20 configured as shown in FIG. In the control example of FIG. 6, the detailed description of the control parts (S401, S404 to S406) similar to those of FIG. 3 is omitted.
In this control example, when the external power supply interruption is detected by the external power supply unit 206 (S401), the main control unit 201 determines that there is a high possibility that the small base station 20 has been installed, and receives an external GPS signal. Control is performed to execute the acquisition process of the current position information (latitude and longitude) by the device 30 (S402), and it is determined whether or not the current position information has been acquired (S403). Here, when the current position information has been acquired (Yes in S402), the main control unit 201 determines the current position information and controls the radio wave transmission function, as in the case of the control examples in FIGS. (S404, S405). On the other hand, when the current position information cannot be acquired (No in S403) and when the acquired current position information is outside a predetermined allowable range (No in S404), the main control unit 201 determines that the small base station 20 It is determined that the mobile station has been installed, and control is performed such that the radio wave transmission function in the radio communication unit 202 of the small base station 20 is disabled, that is, radio wave transmission to the mobile communication terminal 10 cannot be performed (S406).
According to this control example, not only when the external power supply to the small base station 20 is cut off, but also when the current position information cannot be acquired by the GPS receiver 30, the small base station 20 has a predetermined allowable limit. In consideration of the possibility of moving outside the range, the radio wave transmission function of the small base station 20 is controlled to be invalid in any case. Thus, it is possible to more reliably prevent the small base station 20 from being moved and installed outside the predetermined allowable range. Further, according to this control example, the radio wave transmission function can be stopped more quickly when there is a high possibility that the small base station 20 has been moved and installed.
In this control example, when the detection of the external power supply interruption (S401) is performed, the radio wave transmission function of the small base station 10 is once invalidated, and thereafter, after the acquisition of the current position information of the small base station 20 Control (S402 to S406) may be performed.

FIG. 7 is a block diagram showing an example of a schematic configuration of a small base station according to still another embodiment of the present invention. In FIG. 7, the same components as those in FIG.
The small base station 20 of the present embodiment includes an acceleration detection unit 209 having a uniaxial, biaxial or triaxial acceleration sensor as an acceleration detection means for detecting the acceleration of the small base station 20. In addition, the main control unit 201 of the present embodiment detects at least one of the fact that the external power supply is cut off and that the current position information cannot be acquired by the GPS receiver 30 as the external device, and the acceleration Control can be performed so as to determine whether or not the current position information of the small base station 20 is within a predetermined allowable range when vibrations of a predetermined threshold value or more are detected based on the detection result of the detection unit 209.

FIG. 8 is a flowchart illustrating an example of transmission function restriction control when a small base station having the configuration of FIG. In the control example of FIG. 8, the detailed description of the control parts (S501, S503 to S506) similar to those of FIG. 3 is omitted. In the present control example, when the external power supply interruption is detected by the external power supply unit 206 (S501) and the acceleration detection unit 209 detects a vibration greater than a predetermined threshold value (S502), the main control unit 201 is detected. Determines that there is a high possibility that the small base station 20 is moved and installed, and performs control so as to execute an acquisition process of the current position information (latitude and longitude) by the GPS receiving unit 205 (S503). After that, as in the above-described control example, determination on the current position information (latitude and longitude) and transmission function control are executed (S504 to 506).
According to this control example, not only the detection of the external power supply being cut off, but also the detection of vibrations exceeding a predetermined threshold generated when the small base station 20 is moved and installed is performed. Therefore, it is possible to improve the accuracy of the determination regarding the mobile installation of the small base station 20.
In this control example, when at least one of the detection of the external power supply cutoff (S501) and the detection of vibrations exceeding the predetermined threshold (S502) is detected, the radio wave transmission function of the small base station 10 is temporarily disabled. Then, control (S503 to S506) after acquisition of the current position information of the small base station 20 may be performed.

As described above, according to the present embodiment, when it is detected that the external power supply to the small base station 20 is cut off, the small base station 20 is likely to be moved and installed. It is determined whether or not the current position information (GPS latitude and longitude) of the small base station 20 is within a predetermined allowable range (each of latitude and longitude). Therefore, the current position information is acquired and the transmission function restriction control based on the current position information is more efficient than when the current position of the small base station 20 is constantly monitored to determine whether it is within a predetermined allowable range. Can be done.
Further, according to the present embodiment, when it is determined that the current position information of the small base station 20 is within a predetermined allowable range, the small base station 20 enables the radio wave transmission function. On the other hand, when it is determined that the current position information of the small base station 20 is outside the predetermined allowable range, the small base station 20 disables the radio wave transmission function. As described above, since the radio wave transmission function is autonomously restricted when the small base station 20 is outside the predetermined allowable range, a preset installation location can be changed without remote management from the communication network side. It is possible to restrict use by moving and installing outside a predetermined predetermined tolerance range. In addition, since it is not necessary to perform a fixed installation operation of the small base station 20 by a contractor for restricting the mobile installation of the small base station 20, it is possible to reduce costs and improve user convenience.
In addition, according to the present embodiment, there is a high possibility that the small base station 20 has been moved and installed, that is, the external power supply is shut off in the small base station 20, and communication with an external GPS receiver cannot be performed. When it is detected that the position information cannot be acquired, the radio wave transmission function of the small base station 20 is once disabled. Thereby, when there is a high possibility that the small base station 20 is moved and installed, the radio wave transmission function can be stopped more quickly.
In addition, according to the present embodiment, not only when the external power supply to the small base station 20 is cut off, but the current position information is acquired by the GPS receiver 30 which is an external device as the current position information acquisition means. Even in the case where the small base station 20 cannot be performed, the radio base station 20 has a radio transmission function disabled in consideration of the possibility that the small base station 20 may be installed outside the predetermined allowable range. Thus, it is possible to more reliably prevent the small base station 20 from being moved and installed outside the predetermined allowable range.
Further, according to the present embodiment, when the external power supply cable 206a is disconnected and the supply of external power from the external power supply line is cut off, it is determined that the small base station 20 is likely to be moved and installed. The current position information of the small base station 20 is acquired and the transmission function restriction control is performed. Therefore, the current position information can be acquired and the transmission function restriction control can be performed more efficiently than when the current position of the small base station 20 is constantly monitored and the transmission function restriction control is performed.
In addition, according to the present embodiment, not only the detection of at least one of the fact that the external power supply is cut off and the current position information cannot be acquired by the GPS receiving device (external device) 30, but also the movement of the small base station 20 It is determined that there is a high possibility that the small base station 20 has been moved and installed when vibrations greater than or equal to a predetermined threshold that occur during installation are detected. Accordingly, it is possible to increase the accuracy of the determination regarding the mobile installation of the small base station 20.

  In each of the above-described embodiments, the current position information acquisition unit has been described to be configured to receive radio waves from GPS satellites and acquire information on the current position (latitude and longitude). Information acquisition means may be used. For example, information on the current position (latitude and longitude) may be acquired by receiving radio waves from commercial satellites other than GPS satellites. Alternatively, the current position information may be acquired by referring to an external reference signal such as SSID of a wireless LAN such as WiFi, RFID, or digital terrestrial broadcasting.

10 mobile communication terminal 20 small base station 30 GPS receiver (external device)
DESCRIPTION OF SYMBOLS 50 GPS satellite 90 Line termination device 201 Main control part 202 Wireless communication part 203 Data storage part 204 Network side communication part 205 GPS receiving part 206 External power supply part

JP 2006-093778 A JP 2007-259289 A JP 2009-232286 A

Claims (6)

A mobile baseable small base station used in a wireless communication network,
An external power supply means for supplying external power via a power cable;
Detecting means for detecting that the supply of external power is cut off;
Current position information acquisition means for acquiring current position information of the small base station;
When the detection unit detects that the external power supply is cut off, it is determined whether the current location information of the small base station acquired by the current location information acquisition unit is within the predetermined allowable range. When the current position information of the small base station is determined to be within the predetermined allowable range, the radio transmission function of the small base station is enabled, and the current position information of the small base station is determined to be within the predetermined allowable range. Control means for disabling the radio wave transmission function of the small base station when determined to be outside
A small base station characterized by comprising: The small base station of claim 1,
The control means disables the radio wave transmission function of the small base station once when the detection means detects that the supply of the external power supply is cut off, and then the current position information of the small base station is A small base station that judges whether or not it is within the predetermined allowable range. The small base station of claim 1,
The current position information acquisition means is an external device capable of communicating with the main body of the small base station via wired or wireless short-range communication,
The small base station, wherein the control means disables the radio wave transmission function of the small base station when the current position information cannot be acquired by the current position information acquisition means. In the small base station according to claim 1, 2, or 3,
Acceleration detecting means for detecting the acceleration of the small base station,
The control unit detects the small base when the detection unit detects that the supply of the external power supply is cut off and detects a vibration of a predetermined threshold or more based on a detection result of the acceleration detection unit. A small base station that determines whether the current position information of a station is within the predetermined allowable range. A method for controlling a small mobile base station used in a wireless communication network,
If it is detected that the supply of external power to the small base station is cut off, determining whether the current position information of the small base station is within the predetermined allowable range; and
When it is determined that the current position information of the small base station is within the predetermined allowable range, enabling a radio wave transmission function of the small base station;
Disabling the radio transmission function of the small base station when it is determined that the current position information of the small base station is outside the predetermined allowable range;
A method for controlling a small base station, comprising: A program executed by a processor provided in a mobile base station that can be installed in a wireless communication network,
When it is detected that the supply of external power to the small base station is cut off, control for determining whether or not the current position information of the small base station is within the predetermined allowable range;
When it is determined that the current position information of the small base station is within the predetermined allowable range, control to enable the radio wave transmission function of the small base station,
A program for causing the processor to execute control for invalidating a radio wave transmission function of the small base station when it is determined that the current position information of the small base station is outside the predetermined allowable range. .

Images