JP2019161469A - Base station, communication system, communication method, and communication control program - Google Patents

Abstract

To provide a base station capable of appropriately communicating with a plurality of communication devices, a communication system, a communication method, and a communication control program.SOLUTION: A plurality of communication units communicates with a plurality of communication devices. When the number of communication devices with which one communication unit can communicate is equal to or greater than a predetermined threshold, at least a part of resources used by other communication units is added to a resource used for communication with the communication device by the one communication unit.SELECTED DRAWING: Figure 11

Description

  The present invention relates to a base station, a communication system, a communication method, and a communication control program.

  There is known a base station that communicates with a communication device in a cell that is in a range where communication with the base station is possible.

  Patent Document 1 calculates the number of OFDM (Orthogonal Frequency Division Multiplexing) symbols appropriate for the communication status, and assigns the maximum number of calculated OFDM symbols in each subframe within the next control interval. A radio base station having a large number of OFDM symbols is described. For example, the radio base station described in Patent Document 1 determines the number of OFDM symbols that can be allocated in each subframe in the next control interval in consideration of the communication status with a single mobile station.

JP 2010-114781 A

  The radio base station described in Patent Document 1 does not consider communication with a plurality of mobile stations.

  In view of the above problems, an object of the present invention is to provide a base station, a communication system, a communication method, and a communication control program that can appropriately communicate with a plurality of communication apparatuses.

  The base station according to the present invention, when the number of communication devices that can communicate with a plurality of communication devices and the number of communication devices with which one communication device can communicate is equal to or greater than a predetermined threshold value, And adding means for adding at least a part of resources used by other communication means to resources used for communication with the communication device.

  The communication system of the present invention includes any one of the base stations, a communication device that communicates with the base station, and another communication device that communicates with the base station.

  The communication method of the present invention communicates with a plurality of communication devices, and when the number of communicable communication devices exceeds a predetermined threshold, resources used for communication with the communication device include at least other resources. Add some.

  The communication control program according to the present invention causes a computer to communicate with a plurality of communication devices via a plurality of communication means, and when the number of communication devices with which one communication means can communicate exceeds a predetermined threshold. And an additional process for adding at least a part of the resources used by the other communication means to the resources used for communication with the communication device by the one communication means.

  It is possible to appropriately communicate with a plurality of communication devices.

It is a figure which shows the structural example of the communication system in 1st Embodiment. It is a block diagram which shows the structural example of the base station apparatus in 1st Embodiment. It is a figure which shows the example of a change process of the number information of connectable persons which the base station apparatus in 1st Embodiment performs. It is a sequence chart which shows the reporting process of the number-of-connections information which the base station apparatus in 1st Embodiment performs. It is a sequence chart which shows the change process of the number information of connectable persons which the base station apparatus in 1st Embodiment performs. It is a figure which shows the structural example of the communication system in 2nd Embodiment. It is a block diagram which shows the structural example of the base station apparatus in 2nd Embodiment. It is a figure which shows the example of a change process of the number information of connectable persons which the base station apparatus in 2nd Embodiment performs. It is a sequence chart which shows the reporting process of the number-of-connections information which the base station apparatus in 2nd Embodiment performs. It is a sequence chart which shows the change process of the number of connectable users information which the base station apparatus in 2nd Embodiment performs. It is a figure which shows the structural example of the base station in 3rd Embodiment.

<First Embodiment>
A communication system 1 according to a first embodiment will be described with reference to the drawings. FIG. 1 is a block diagram illustrating a configuration example of a communication system 1 according to the first embodiment. The communication system 1 includes a base station device 100 and a communication device 200. The base station apparatus 100, the communication apparatus 200, and the core network 300 are configured to communicate according to, for example, the specifications of IMT (International Mobile Telecommunications) -2000 and LTE (Long Term Evolution, registered trademark). In addition, the communication system 1 is configured based on a configuration according to, for example, a C-RAN (Centralized Radio Access Network, Cloud Radio Access Network). The core network 300 is, for example, an EPC (Evolved Packet Core).

  Base station apparatus 100 and core network 300 can be connected to each other in order to communicate with each other. For example, the base station apparatus 100 receives a signal transmitted from the core network 300. For example, the base station apparatus 100 transmits the signal received from the communication apparatus 200 to the core network 300.

  Base station apparatus 100 and communication apparatus 200 can be connected to each other in order to communicate with each other. For example, the base station device 100 receives a signal transmitted from the communication device 200. For example, the base station apparatus 100 transmits a signal to the communication apparatus 200. Note that the communication device 200 is a communication device such as a smartphone or a mobile phone. Communication device 200 is also referred to as user equipment (UE).

  The base station apparatus 100 and the communication apparatus 200 can be connected to each other in order to communicate with each other via, for example, an RRH (Remote Radio Head) 400. Further, for example, the base station apparatus 100 and the RRH 400 are connected to each other via a wired transmission path (for example, an optical communication cable). For example, in the case of FIG. 1, the base station apparatus 100 is connected to four RRHs 401 to 404. And the base station apparatus 100 communicates with the communication apparatus 200 via each RRH401-404. Service areas (hereinafter also referred to as cells) 501 to 504 indicate ranges in which communication with the RRHs 401 to 404 is possible. For example, the base station apparatus 100 communicates with the communication apparatus 200 in the service area 501 via the RRH 401. 1 illustrates an example in which there are two communication devices 200 in each of the service areas 501 to 504, but the number of communication devices 200 in each of the service areas 501 to 504 is limited to two. The number may be one, or three or more. 1 illustrates an example in which four RRHs 401 to 404 are connected to the base station device 100, the number of RRHs is not limited to four, and may be less than four. It may be 5 or more.

  FIG. 2 is a block diagram illustrating a configuration example of the base station apparatus 100. As shown in FIG. 2, the base station apparatus 100 includes a wired communication unit 110, a resource accommodation unit 120, and a service area monitoring control unit 130.

  The wired communication unit 110 communicates with the core network 300. For example, the wired communication unit 110 and the core network 300 communicate with each other via a wired transmission path.

  The resource accommodating unit 120 includes a communication processing unit 121, a communication processing unit 122, a communication processing unit 123, and a communication processing unit 124. The communication processing unit 121 and the RRH 401 illustrated in FIG. 1 are connected to each other. The communication processing unit 122 and the RRH 402 illustrated in FIG. 1 are connected to each other. The communication processing unit 123 and the RRH 403 illustrated in FIG. 1 are connected to each other. The communication processing unit 124 and the RRH 404 shown in FIG. 1 are connected to each other.

  The communication processing unit 121 communicates with the communication device 200 in the service area 501 via the connected RRH 401. Specifically, for example, the communication processing unit 121 receives a carrier wave modulated with predetermined data from the communication device 200 via the RRH 401. Specifically, for example, the communication processing unit 121 demodulates the modulated carrier wave and acquires information according to predetermined data. Further, the communication processing unit 121 modulates a carrier wave with data according to predetermined information (for example, information indicating a radio resource), and transmits the modulated carrier wave to the communication apparatus 200 via the RRH 401. In the following description, the communication processing unit and the RRH may be collectively referred to as a communication processing unit.

  The communication processing unit 121 stores information indicating the number of connectable persons input from the service area monitoring control unit 130 (hereinafter also referred to as connectable person number information). The number of connectable persons indicates the upper limit number of communication apparatuses 200 with which the communication processing unit 121 can communicate. That is, the number of connectable users indicates the upper limit number of communication apparatuses 200 that can provide a communication service in one service area. For example, the number of connectable persons is determined based on information indicating radio resources (for example, frequency resources, resource blocks, etc.) corresponding to the upper limit number. For example, when wireless resources that can provide communication services to a maximum of 3000 communication devices 200 are available, the number of connectable users is 3000. In this example, the number of connectable users information is information indicating radio resources that can provide a communication service to a maximum of 3000 communication devices 200.

  For example, the communication processing unit 121 allocates radio resources to the communication device 200 based on the input number of connectable users information, and transmits information indicating the allocated radio resources to the communication device 200. And the communication processing part 121 and the communication apparatus 200 communicate between each other using the said radio | wireless resource.

  In addition, the communication processing unit 121 calculates the current number of communication devices 200 in a state in which the communication processing unit 121 can communicate with the communication processing unit 121, and informs the service area monitoring control unit 130 information indicating the number of communication devices 200 (connector). (Also called numerical information). For example, when there are 500 communication devices 200 that have performed a known connection process with the communication processing unit 121 in the service area 501 that is a range that can communicate with the communication processing unit 121, the number-of-connections information is 500. For example, when a known connection process is performed between the communication processing unit 121 and the communication device 200, the communication processing unit 121 stores the number of connection processes. Here, the communication processing unit 121 may be configured to calculate the number of connection processes in a predetermined period as the current number of communication devices 200 in a state where communication with the communication processing unit 121 is possible. Note that the communication processing unit 121 sets the difference value obtained by subtracting the number of communication devices 200 that have become unable to communicate from the number of connection processes performed to the current value of the communication device 200 that is in a state where communication with the communication processing unit 121 is possible. It may be configured to calculate as a number.

  Further, for example, when a known connection process is performed between the communication processing unit 121 and the communication device 200, the communication processing unit 121 is configured to store the identifier of the communication device 200. Also good. Then, the identifier of the communication device 200 that has become unable to communicate is deleted. The communication processing unit 121 may be configured to calculate the number of stored identifiers as the current number of communication devices 200 in a state in which communication with the communication processing unit 121 is possible. Note that the current number of communication devices 200 in a state capable of communicating with the communication processing unit corresponds to the number of connected users.

  Further, the communication processing unit 121 calculates the current number of communication devices 200 in a state in which communication with the communication processing unit 121 is possible based on an instruction from the service area monitoring control unit 130 and connects to the service area monitoring control unit 130. Enter the number information.

  Each of the communication processing unit 122, the communication processing unit 123, and the communication processing unit 124 has the same function as the communication processing unit 121.

  The service area monitoring control unit 130 manages the number of connectable users in each of the communication processing units 121 to 124.

  The service area monitoring control unit 130 inputs the number of connectable persons to each communication processing unit 121 to 124 in order to set the number of connectable persons in each communication processing unit 121 to 124. The service area monitoring control unit 130 stores the number of connectable users input to the communication processing units 121 to 124.

  The service area monitoring control unit 130 identifies radio resources that can be used by the communication processing unit 121. For example, the service area monitoring control unit 130 is configured to calculate a radio resource that can be used by the communication processing unit 121 according to a system bandwidth (for example, a frequency bandwidth) that can be used in accordance with LTE specifications. ing. The service area monitoring control unit 130 is configured to set the number of connectable persons to the communication processing unit 121 based on the specified radio resource and to input the connectable person number information to the communication processing unit 121.

  Further, for example, the service area monitoring control unit 130 sets the number of connectable persons in the communication processing unit 121 based on the number of known connection processes performed in a predetermined period. Specifically, for example, when a lot of connection processing is performed in a predetermined period in one service area, the communication processing unit 121 that makes the one service area communicable can perform other communication processing. The service area monitoring control unit 130 sets a larger number of connectable users than the other communication processing units in the communication processing unit 121 so that more radio resources can be used.

  The service area monitoring control unit 130 stores information indicating the threshold number of connected users. For example, the connection number threshold is set in the service area monitoring control unit 130 in advance by an administrator such as an operator. The service area monitoring control unit 130 determines whether or not the value indicated by the number-of-connections information has reached the number-of-connections threshold. Note that the number-of-connectors threshold value is set to a value smaller than the value indicated by the number of connectable users information.

  The service area monitoring control unit 130 requests the communication processing units 121 to 124 to input the number of connected users. For example, the service area monitoring control unit 130 inputs an instruction for requesting input of the number of connected users to the communication processing unit 121 at a predetermined timing. Specifically, the service area monitoring control unit 130 inputs the instruction to the communication processing unit 121, for example, every 5 minutes.

  Note that the service area monitoring control unit 130 may be configured to change the interval at which the instruction is input, for example. Specifically, when the value indicated by the number-of-connectors information input from the communication processing unit 121 exceeds a predetermined threshold, the service area monitoring control unit 130, for example, an interval for inputting the instruction The interval is changed so as to shorten. Specifically, the service area monitoring control unit 130 inputs the instruction when the value indicated by the number-of-connectors information input from the communication processing unit 121 is less than a predetermined threshold, for example. The interval is changed so as to lengthen the interval.

  Further, for example, the service area monitoring control unit 130, when the value indicated by the number-of-connectors information input from the communication processing unit 121 is equal to or greater than a predetermined threshold, before the predetermined timing arrives, The instruction is input to the communication processing unit 121 after a predetermined time (for example, 1 minute) has elapsed since the input of the number-of-connectors information. Specifically, the service area monitoring control unit 130 that inputs the instruction to the communication processing unit 121 every 5 minutes has a value indicated by the number-of-connectors information input from the communication processing unit 121. When the threshold value is exceeded, for example, after one minute has passed since the input of the number of connected users, an instruction for requesting input of the number of connected users is input to the communication processing unit 121.

  Note that, regardless of the instruction input from the service area monitoring control unit 130, the communication processing unit 121 determines that the current number of communication devices 200 in a state in which communication with the communication processing unit 121 is communicable exceeds a predetermined threshold. In this case, the service area monitoring control unit 130 may be configured to input the number of connected users.

  The service area monitoring control unit 130 stores the number of connected users input from the communication processing units 121 to 124.

  The service area monitoring control unit 130 determines that the value indicated by the number-of-connections information is based on the number-of-connections threshold value and the number-of-connections information input from each of the communication processing units 121-124. It is determined whether or not it has been reached. For example, the service area monitoring control unit 130 may be configured to perform the determination when connection number information is input from each of the communication processing units 121 to 124.

  For example, when the service area monitoring control unit 130 determines that the value indicated by the number-of-connections information input from the communication processing unit 121 has reached the number-of-connections threshold, each of the communication processing units 122 to 124. Based on the number of connectable users set in the information and the number of connectable users input from each of the communication processing units 122 to 124, the value indicated by the number of connectable users is indicated by the connectable number of users information. A communication processing unit that has not reached the specified value is identified. That is, the service area monitoring control unit 130 identifies a communication processing unit having a sufficient number of communication devices 200 that can provide a communication service.

  The service area monitoring control unit 130 subtracts a predetermined value from the value of the number of connectable users set in the identified communication processing unit, and determines the value of the number of connectable users set in the communication processing unit 121 to Add a predetermined value. For example, the service area monitoring control unit 130 sets a part of the radio resources that can be used by the specified communication processing unit to be unusable, and adds it to the radio resources that can be used by the communication processing unit 121.

  A specific operation of the base station apparatus 100 will be described with reference to FIG. FIG. 3 is an explanatory diagram illustrating an example of the number of connectable persons set in the communication processing units 121 to 124 managed by the service area monitoring control unit 130.

  As shown in FIG. 3, it is assumed that 3000 is set as the number of connectable users in each communication processing unit 121 to 124 by the service area monitoring control unit 130, for example. In this case, each of the communication processing units 121 to 124 can use a radio resource that can provide a communication service to a maximum of 3000 communication devices 200 for communication with the communication device 200.

  In addition, it is assumed that 2700 is set as the connection number threshold value in each of the communication processing units 121 to 124 by the service area monitoring control unit 130.

  At this time, the current number of communication devices 200 in a state capable of communicating with the communication processing unit 121 is 2700, and the current number of communication devices 200 in a state capable of communicating with the communication processing unit 122 is 500. The specific operation of base station apparatus 100 in this case is as follows.

  The service area monitoring control unit 130 specifies a value indicated by the number-of-connectors information input from the communication processing units 121 to 124. That is, the service area monitoring control unit 130 identifies the current number of communication devices 200 that are in a state in which the communication processing units 121 to 124 can communicate with each other.

  Then, the service area monitoring control unit 130 determines that the current number (2700) of the communication devices 200 that can communicate with the communication processing unit 121 has reached the number-of-connections threshold (2700).

  Furthermore, based on the value of the number of connectable users set in each communication processing unit 122-124 and the value indicated by the number of connectable users input from each communication processing unit 122-124, service area monitoring The control unit 130 identifies another communication processing unit different from the communication processing unit 121.

  For example, the service area monitoring control unit 130 identifies the communication processing unit 122 in which the current number of communication devices 200 in a communicable state has not reached the value (3000) of the number of connectable users. Specifically, for example, the service area monitoring control unit 130 is indicated by the value (3000) of the number of connectable users set in the communication processing unit 122 and the number of connected users input from the communication processing unit 122. The communication processing unit 122 is specified based on the value (500). That is, the service area monitoring control unit 130 identifies the communication processing unit 122 as a communication processing unit having a sufficient number of communication devices 200 that can provide a communication service.

  Then, the service area monitoring control unit 130 subtracts 1500 from the value of the number of connectable users set in the communication processing unit 122 and adds 1500 to the value of the number of connectable users set in the communication processing unit 121. To do. The service area monitoring control unit 130 inputs the changed number of connectable users information to the communication processing unit 121 and the communication processing unit 122.

  As a result, 4500 is set as the number of connectable persons in the communication processing unit 121, and 1500 is set as the number of connectable persons in the communication processing unit 122. That is, for example, the communication processing unit 121 can use a radio resource that can provide a communication service to a maximum of 4500 communication apparatuses 200. In addition, the communication processing unit 122 uses radio resources that can provide a communication service to a maximum of 1500 communication devices 200.

  FIG. 4 is a sequence chart illustrating the reporting process of the number of connected users executed by the base station apparatus 100.

  The service area monitoring control unit 130 inputs an instruction for requesting input of the number of connected users to the resource accommodating unit 120 (step S101).

  Each communication processing unit 121 to 124 of the resource accommodating unit 120 calculates the current number of communication devices 200 in a communicable state based on the input instruction (step S102).

  Each of the communication processing units 121 to 124 of the resource accommodating unit 120 inputs the number-of-connectors information to the service area monitoring control unit 130 (step S103). The service area monitoring control unit 130 is input with the number of connected users from each of the communication processing units 121 to 124.

  FIG. 5 is a sequence chart showing a process for changing the number of connectable users executed by the base station apparatus 100.

  The service area monitoring control unit 130 can communicate with each of the communication processing units 121 to 124 based on the connection number threshold value and the number of connected users input from the communication processing units 121 to 124 of the resource accommodating unit 120. It is determined whether or not the current number of communication devices 200 in the network has reached the connection number threshold (step S201). In this example, it is assumed that the service area monitoring control unit 130 determines that the current number of communication devices 200 that are communicable with the communication processing unit 121 has reached the connection number threshold.

  When the service area monitoring control unit 130 determines that the current number of communication devices 200 in a state in which the communication processing unit 121 can communicate with the communication processing unit 121 has reached the connection number threshold (Y in step S201), Based on the number of connectable persons set in the sections 122 to 124 and the number of connectable persons input from the communication processing sections 122 to 124, the value indicated by the number of connectable persons is the number of connectable persons information. A communication processing unit that does not reach the value indicated by is identified (step S202). In this example, it is assumed that the service area monitoring control unit 130 identifies the communication processing unit 122.

  The service area monitoring control unit 130 instructs the communication processing unit 122 identified in the process of step S202 to change the number of connectable users (step S203). In this example, the service area monitoring control unit 130 inputs connectable user number information indicating 1500 to the communication processing unit 122 of the resource accommodating unit 120 in order to change the connectable user number from 3000 to 1500. For example, the service area monitoring control unit 130 inputs connectable person number information indicating radio resources that can provide communication services to the 1500 communication devices 200 to the specified communication processing unit 122.

  The communication processing unit 122 of the resource accommodating unit 120 changes the number of connectable persons based on the connectable person number information input from the service area monitoring control unit 130 (step S204). For example, the communication processing unit 122 uses the radio resources that can provide communication services to 1500 communication devices 200 based on the number of connectable users input from the service area monitoring control unit 130 and the communication processing unit 122. A radio resource is allocated to the communication device 200 in a communicable state. Then, the communication processing unit 122 transmits information indicating the assigned radio resource to the communication device 200.

  The communication processing unit 122 of the resource accommodating unit 120 notifies the service area monitoring control unit 130 that the change of the number of connectable users has been completed (step S205).

  When the communication processing unit 122 notifies that the number of connectable people has been changed, the service area monitoring control unit 130 instructs the communication processing unit 121 of the resource accommodating unit 120 to change the number of connectable people (step). S206). In this example, in order to change the number of connectable persons from 3000 to 4500, the service area monitoring control unit 130 inputs the number of connectable persons information indicating 4500 to the communication processing unit 121. For example, the service area monitoring control unit 130 inputs, to the communication processing unit 121, the number of connectable users indicating wireless resources that can provide communication services to 4500 communication devices 200.

  The communication processing unit 121 of the resource accommodating unit 120 changes the number of connectable persons based on the connectable person number information input from the service area monitoring control unit 130 (step S207). For example, the communication processing unit 121 uses the radio resources that can provide communication services to 4500 communication devices 200 based on the number of connectable users input from the service area monitoring control unit 130 and the communication processing unit 121. A radio resource is allocated to the communication device 200 in a communicable state. Then, the communication processing unit 121 transmits information indicating the assigned radio resource to the communication device 200.

  The communication processing unit 121 of the resource accommodating unit 120 notifies the service area monitoring control unit 130 that the change of the number of connectable users has been completed (step S208).

  When the service area monitoring control unit 130 determines that the current number of communication devices 200 in a state in which the communication processing units 121 to 124 can communicate with each other does not reach the connection number threshold (N in step S201). Then, the processing ends without instructing the communication processing units 121 to 124 to change the number of connectable persons. Each communication processing unit 121 to 124 communicates with each communication device 200.

  According to this embodiment, the base station apparatus 100 is based on the current number of communication apparatuses 200 that are in a state capable of communicating with one communication processing section, and the number of connectable persons set in other communication processing sections. A predetermined value is subtracted from this value, and the predetermined value is added to the value of the number of connectable users set in the one communication processing unit. That is, the base station device 100 uses, for example, a radio resource used for communication with the communication device 200 by another communication processing unit based on the current number of communication devices 200 in a state in which communication with the one communication processing unit is possible. Is set to be unusable, and is added to a radio resource used for communication with the communication apparatus 200 by one communication processing unit.

  According to such a configuration, the base station apparatus can appropriately communicate with a plurality of communication apparatuses. For example, even when a new communication device tries to communicate with a communication processing unit in which the number of communication devices that can provide a communication service is approaching the upper limit, the communication processing unit can be newly used. It is possible to communicate with the communication device by utilizing the wireless resources. Further, for example, even when the number of communication devices in one service area suddenly increases, the upper limit value of communication devices that can provide communication services can be increased in the one service area. The number of communication devices that can receive service can be increased.

  In the present embodiment, the service area monitoring control unit 130 determines whether or not the current number of communication devices 200 in a state in which the communication processing units 121 to 124 can communicate with each other has reached the connection number threshold. The service area monitoring control unit 130 determines the value of the number of connectable users set in each of the communication processing units 121 to 124 and the current number of communication devices 200 that can communicate with the communication processing units 121 to 124. It may be configured to determine whether or not the difference value is less than a predetermined threshold. In other words, the service area monitoring control unit 130 may be configured to determine whether or not the remaining number of communication devices 200 capable of providing communication service is less than a predetermined threshold in one service area. Good.

  In the present embodiment, 1500 is subtracted from the value of the number of connectable users set in the communication processing unit 122, but the value to be subtracted may not be 1500.

  For example, the service area monitoring control unit 130 is configured to calculate a value to be subtracted based on the value indicated by the connectable user number information and the value indicated by the connecter number information. Also good. For example, the service area monitoring control unit 130 determines the predetermined value so that the value indicated by the connectable user number information obtained by subtracting the predetermined value is not smaller than the value indicated by the connecter number information. May be configured to determine.

  Specifically, for example, the value of the number of connectable users set in the communication processing unit 122 is 3000, and the value indicated by the number of connected users input from the communication processing unit 122 is 500. In this case, in order for the communication processing unit 121 to use radio resources other than the radio resources allocated to the communication device 200 in a state in which the communication processing unit 122 can communicate with the communication processing unit 122, the service area monitoring control unit 130 It may be configured to subtract 2500 from the value of the number of connectable users set in 122.

  In this embodiment, a predetermined value is subtracted from the value of the number of connectable users set in one communication processing unit, but from the value of the number of connectable users set in a plurality of communication processing units. The predetermined value may be subtracted. For example, the service area monitoring control unit 130 subtracts a predetermined value from the number of connectable users set in the plurality of communication processing units based on the number of connectable users set in the plurality of communication processing units. Then, the predetermined value may be added to the value of the number of connectable users set in another communication processing unit different from the plurality of communication processing units.

  Specifically, for example, assume that 3000 is set as the number of connectable users in each of the communication processing units 121 to 124. Further, it is assumed that the current number of communication devices 200 in a state capable of communicating with the communication processing unit 122 is 500, and the number of communication devices 200 capable of communicating with the communication processing unit 123 is 500.

  At this time, the service area monitoring control unit 130 sets the number of connectable persons (3000) set in the communication processing unit 122 and the communication processing unit 123 and the connection input from the communication processing unit 122 and the communication processing unit 123. The communication processing unit 122 and the communication processing unit 123 are specified based on the value (500) indicated by the number information. That is, the service area monitoring control unit 130 identifies the communication processing unit 122 and the communication processing unit 123 as communication processing units having a sufficient number of communication devices 200 that can provide a communication service.

  Then, the service area monitoring control unit 130 subtracts 1000 from the value of the number of connectable people set in the communication processing unit 122 and subtracts 500 from the value of the number of connectable people set in the communication processing unit 123. Then, 1500 may be added to the value of the number of connectable persons set in the communication processing unit 121.

  In addition, when the current number of communication devices 200 in a state capable of communicating with the identified communication processing unit 122 is 0, the service area monitoring control unit 130 is a connectable person set in the communication processing unit 122. The number value may be added to the value of the number of connectable persons set in the communication processing unit 121.

  In addition, the service area monitoring control unit 130 may be configured to change the connection number threshold.

  Specifically, for example, the service area monitoring control unit 130 subtracts 1500 from the value of the number of connectable users set in the communication processing unit 122 based on the processing described in this embodiment, and the communication processing unit Suppose that 1500 is added to the value of the number of connectable users set in 121. Then, it is assumed that the service area monitoring control unit 130 inputs the changed number of connectable users information to the communication processing unit 121 and the communication processing unit 122.

  In this case, for example, the service area monitoring control unit 130 changes the number-of-connections threshold set in the communication processing unit 121 to 4050. Furthermore, the service area monitoring control unit 130 changes the number-of-connections threshold set in the communication processing unit 122 to 1350, for example. The service area monitoring control unit 130 stores the changed number-of-connections threshold value.

  According to such a configuration, the service area monitoring control unit 130 can appropriately manage radio resources based on the changed number-of-connections threshold value.

  The wired communication unit 110 is realized by a transmission circuit and a reception circuit.

  The resource accommodating unit 120 and the communication processing units 121 to 124 are realized by a CPU (Central Processing Unit) that executes processing according to program control, a plurality of circuits, a memory, a transmission circuit, a reception circuit, an antenna, and the like.

  For example, the resource accommodating unit 120 and the communication processing units 121 to 124 may be configured to execute predetermined processing using processing resources such as a CPU, a plurality of circuits, and a memory.

  In addition, the service area monitoring control unit 130 determines the resource accommodating unit 120 and each communication according to the amount of data traffic assumed in the communication between the communication processing units 121 to 124 and the communication device 200 and the processing load. The processing resources 121 to 124 may be configured to determine the amount of processing resources (for example, the number of CPUs, the number of memories, etc.). For example, the service area monitoring control unit 130 determines the amount of processing resources used by the communication processing unit 121 according to the load of signal processing performed by the communication processing unit 121. Then, for example, the communication processing unit 121 uses the processing resource to allocate radio resources to the communication apparatus 200, carrier wave modulation process, carrier wave demodulation process, signal transmission process to the communication apparatus 200, and communication apparatus 200. Signal reception processing, communication processing for communicating with each other between the communication processing unit 121 and the communication device 200, and the like.

  For example, the number of connectable persons set in each of the communication processing units 121 to 124 may be configured to be determined based on the amount of processing resources. For example, the service area monitoring control unit 130 sets the number of connectable persons in each of the communication processing units 121 to 124 based on the amount of processing resources available in the resource accommodating unit 120 and the communication processing units 121 to 124. Specifically, for example, when a communication service is provided to a maximum of 3000 communication devices 200 in a service area capable of communicating with the communication processing unit 121, the communication processing unit 121 and a maximum of 3000 communication devices 200 are provided. The service area monitoring control unit 130 is configured to communicate with the communication processing units 121 to 124 so that the communication processing unit 121 can process the data traffic and the like according to the amount of data traffic assumed in the communication with and the processing load. The amount of processing resources used by the communication processing unit 121 among the total amount of processing resources that can be used is determined, and the number of connectable users of the communication processing unit 121 is set to 3000.

  In addition, when the service area monitoring control unit 130 changes the number of connectable users set in the communication processing units 121 to 124, the ratio of the amount of processing resources used by the communication processing units 121 to 124 May be configured to change.

  Specifically, for example, when the number of connectable persons set in the communication processing unit 121 is changed from 3000 to 4500 as in the process of changing the connectable person number information illustrated in FIG. The monitoring control unit 130 determines the amount of processing resources determined in accordance with the amount of data traffic and the processing load assumed in communication between the communication processing unit 121 and a maximum of 3000 communication devices 200. The amount of processing resources is changed according to the amount of data traffic and processing load assumed in communication between the unit 121 and a maximum of 4500 communication devices 200.

  When the number of connectable persons set in the communication processing unit 122 is changed from 3000 to 1500 as in the process for changing the number of connectable persons shown in FIG. The amount of processing resources determined in accordance with the amount of data traffic and the processing load assumed in communication between the communication processing unit 122 and a maximum of 3000 communication devices 200 are set to the communication processing unit 122 and the maximum The amount of processing resources is changed according to the amount of data traffic assumed in communication with 1500 communication devices 200 and the processing load. For example, the service area monitoring control unit 130 decreases the amount of processing resources used by the communication processing unit 122 and adds the processing resources to the amount of processing resources used by the communication processing unit 121.

  The service area monitoring control unit 130 is realized by, for example, a CPU that executes processing according to program control, a plurality of circuits, a memory, and the like.

<Second Embodiment>
A communication system 2 according to the second embodiment will be described with reference to the drawings. FIG. 6 is a block diagram illustrating a configuration example of the communication system 2 according to the second embodiment. The communication system 2 includes a base station device 600 and a communication device 700.

  The communication system 2 is different from the communication system 1 of the first embodiment in that the base station device 600 has a new function, the communication device 700 is a communication device for a high-priority user, The difference is that 700 is a low-priority user communication device. Other components are denoted by the same reference numerals as the corresponding components in the first embodiment shown in FIG.

  Base station apparatus 600 and core network 300 can be connected to each other in order to communicate with each other. For example, the base station apparatus 600 receives a signal transmitted from the core network 300. For example, the base station apparatus 600 transmits the signal received from the communication apparatus 700 to the core network 300.

  Base station apparatus 600 and communication apparatus 700 can be connected to each other in order to communicate with each other. For example, base station apparatus 600 receives a signal transmitted from communication apparatus 700. For example, the base station apparatus 600 transmits a signal to the communication apparatus 700. Note that the communication device 700 is a communication device such as a smartphone or a mobile phone. Communication device 700 is also referred to as a UE.

  The communication device 700 is, for example, a communication device used by a high priority user (hereinafter also referred to as a high priority user communication device). The communication device 700 is a communication device used by a low priority user (hereinafter also referred to as a low priority user communication device). High-priority users are users of emergency calls, users of services that require real-time capability, users of specific VoLTE (Voice Over LTE), and services with high priority so that call disconnection does not occur. It is a necessary user. A low priority user is a user who is not a high priority user. Note that the communication device of the high-priority user, for example, preferentially transmits information indicating IMSI (International Mobile Subscriber Identity) on the RACH (Random Access Channel) to the base station device. Depending on the operation, radio resources for voice calls and packet transmission / reception may be acquired (receive the IMSI information on the priority RACH and acquire the voice / packet resources).

  FIG. 7 is a block diagram illustrating a configuration example of the base station apparatus 600. As illustrated in FIG. 7, the base station apparatus 600 includes a wired communication unit 610, a resource storage unit 620, and a service area monitoring control unit 630.

  The wired communication unit 610 communicates with the core network 300. For example, the wired communication unit 610 and the core network 300 communicate with each other via a wired transmission path.

  The resource storage unit 620 includes a communication processing unit 621, a communication processing unit 622, a communication processing unit 623, and a communication processing unit 624. The communication processing unit 621 and the RRH 401 illustrated in FIG. 6 are connected to each other. The communication processing unit 622 and the RRH 402 illustrated in FIG. 6 are connected to each other. The communication processing unit 623 and the RRH 403 illustrated in FIG. 6 are connected to each other. The communication processing unit 624 and the RRH 404 illustrated in FIG. 6 are connected to each other.

  The communication processing unit 621 communicates with the communication device 700 in the service area via the connected RRH 401. Specifically, for example, the communication processing unit 621 receives a carrier wave modulated with predetermined data from the communication device 700 via the RRH 401. Specifically, for example, the communication processing unit 621 demodulates the modulated carrier wave and acquires information corresponding to predetermined data. Further, the communication processing unit 621 modulates a carrier wave with data according to predetermined information (for example, information indicating a radio resource), and transmits the modulated carrier wave to the communication apparatus 700 via the RRH 401.

  Further, the communication processing unit 621 stores information indicating the number of connectable high priority users input from the service area monitoring control unit 630 (hereinafter also referred to as high priority connectable user number information). . The number of connectable users of high priority users (hereinafter also referred to as the number of connectable high priority users) is the upper limit number of communication devices 700 of high priority users that can communicate with the communication processing unit 621. In other words, the number of high-priority connectable users indicates the upper limit number of communication devices 700 of high-priority users who can provide communication services in one service area. For example, the number of high priority connectable users is determined based on information indicating radio resources (for example, frequency resources and resource blocks) corresponding to the upper limit number. For example, when a radio resource capable of providing a communication service to the communication device 700 of a maximum of 3000 high priority users can be used, the number of high priority connectable users is 3000. In this example, the high-priority connectable person number information is information indicating radio resources that can provide a communication service to the communication devices 700 of up to 3000 high-priority users.

  In addition, the communication processing unit 621 stores information indicating the number of connectable low priority users input from the service area monitoring control unit 630 (hereinafter also referred to as low priority connectable number information). . The number of connectable users of low priority users (hereinafter also referred to as the number of connectable low priority users) is the upper limit number of communication devices 700 of low priority users that can communicate with the communication processing unit 621. That is, the number of low-priority connectable users indicates the upper limit number of communication devices 700 of low-priority users who can provide services in one service area. For example, the number of low-priority connectable users is determined based on information indicating radio resources (for example, frequency resources and resource blocks) for the upper limit number. For example, when a radio resource capable of providing a communication service to the communication device 700 of up to 3000 low priority users can be used, the number of low priority connectable users is 3000. In this example, the low-priority connectable person number information is information indicating radio resources that can provide a communication service to the communication devices 700 of up to 3000 low-priority users.

  For example, the communication processing unit 621 assigns radio resources to the communication device 700 of the high priority user based on the input information on the number of connectable high priority users, and information indicating the assigned radio resource to the communication device 700 Send. And the communication processing part 621 and the said communication apparatus 700 communicate between each other using the said radio | wireless resource. Further, for example, the communication processing unit 621 assigns radio resources to the communication device 700 of the low priority user based on the input information on the number of connectable low priority users, and assigns the assigned radio resources to the communication device 700. Send information to indicate. And the communication processing part 621 and the said communication apparatus 700 communicate between each other using the said radio | wireless resource. Also, for example, when the communication device 700 of the high priority user preferentially transmits information indicating the IMSI on the RACH, the communication processing unit 621 performs the voice communication or The wireless resource for packet transmission / reception may be configured to be assigned to the communication device.

  In addition, the communication processing unit 621 calculates the current number of communication devices 700 of high priority users who can communicate with the communication processing unit 621, and notifies the service area monitoring control unit 630 of the current communication device 700. Information indicating the number of users (also referred to as high-priority connection number information). For example, when there are 500 high-priority user communication devices 700 that have performed known emergency call processing with the communication processing unit 621 in a service area that can communicate with the communication processing unit 621, the high priority The connection number information is 500. For example, when a known emergency call process is performed between the communication processing unit 621 and the communication device 200, the communication processing unit 621 stores the number of processed emergency calls. Here, the communication processing unit 621 is configured to calculate the number of emergency calls in a predetermined period as the current number of communication devices 700 of high-priority users who are in communication with the communication processing unit 621. May be. Note that the communication processing unit 621 is a communication device 700 of a high-priority user who can communicate with the communication processing unit 621 by subtracting the number of communication devices 700 that have become unable to communicate from the number of emergency calls. The current number may be calculated.

  Further, for example, when a known emergency call process is performed between the communication processing unit 621 and the communication device 700, the communication processing unit 621 is configured to store the identifier of the communication device 700. May be. Then, the identifier of the communication device 700 that has become unable to communicate is deleted. Even if the communication processing unit 621 is configured to calculate the number of the stored identifiers as the current number of communication devices 700 of the high-priority users who can communicate with the communication processing unit 621. Good.

  In addition, the communication processing unit 621 calculates the current number of low priority user communication devices 700 in a state where communication with the communication processing unit 621 is possible, and notifies the service area monitoring control unit 630 of the current communication device 700. Information (also referred to as low-priority connection number information) is input. For example, when there are 500 low-priority user communication devices 700 that have performed known connection processing with the communication processing unit 621 in the service area that can communicate with the communication processing unit 621, low-priority connection The number information is 500. For example, when a known connection process that is not an emergency call process is performed between the communication processing unit 621 and the communication apparatus 700, the communication processing unit 621 stores the number of the connection processes. The communication processing unit 621 is configured to calculate the number of connection processes in a predetermined period as the current number of communication devices 700 of low-priority users who can communicate with the communication processing unit 621. Also good. The communication processing unit 621 is in a state where it can communicate with the communication processing unit 621 by subtracting the number of low priority user communication devices 700 that have become unable to communicate from the number of connection processes performed. It may be configured to calculate the current number of communication devices 700 of low priority users.

  For example, when a known connection process that is not an emergency call process is performed between the communication processing unit 621 and the communication device 700, the communication processing unit 621 stores the identifier of the communication device 700. Then, the identifier of the communication device 700 that has become unable to communicate is deleted. Even if the communication processing unit 621 is configured to calculate the number of the stored identifiers as the current number of the low-priority user communication devices 700 that are communicable with the communication processing unit 621. Good.

  Further, the communication processing unit 621 determines the current number of high-priority user communication devices 700 in communication with the communication processing unit 621 and the communication processing unit 621 based on an instruction from the service area monitoring control unit 630. And the current number of communication devices 700 of low-priority users who are in a state capable of communicating with each other, and the service area monitoring control unit 630 receives the high-priority connection number information and the low-priority connection number information. input.

  The communication processing unit 622, the communication processing unit 623, and the communication processing unit 624 each have the same function as the communication processing unit 621.

  The service area monitoring control unit 630 manages the high priority connectable number information and the low priority connectable number information in each of the communication processing units 621 to 624.

  The service area monitoring control unit 630 uses each communication processing unit 621 to 624 to set the number of connectable users of high priority users and the number of connectable users of low priority users. High-priority connectable person number information and low-priority connectable person number information are input to 621 to 624. The service area monitoring control unit 630 stores high priority connectable person number information and low priority connectable person number information input to the communication processing units 621 to 624.

  The service area monitoring control unit 630 identifies radio resources that can be used by the communication processing unit 621. For example, the service area monitoring control unit 630 is configured to calculate a radio resource that can be used by the communication processing unit 621 in accordance with a system bandwidth (for example, a frequency bandwidth) that can be used in accordance with LTE specifications. ing. The service area monitoring control unit 630 sets a high priority connectable number and a low priority connectable number in the communication processing unit 621 based on the specified radio resource. Then, the service area monitoring control unit 630 is configured to input the high priority connectable number information and the low priority connectable number information to the communication processing unit 621.

  In addition, for example, the service area monitoring control unit 630 determines the number of high priority connectable users based on the number of emergency calls processed during a predetermined period and the number of normal connection processes processed during a predetermined period, It may be configured to set the number of priority connectable persons. Specifically, for example, when a large number of emergency call processes are performed in a predetermined period in one service area, the communication processing unit 621 that sets the one service area as a communicable range performs other communication. In order to use more radio resources than the processing unit, the service area monitoring control unit 630 provides the communication processing unit 621 with a higher priority than the number of high priority connectable users set in other communication processing units. Set the number of connectable users. Specifically, for example, when many normal connection processes are performed in a predetermined period in one service area, the communication processing unit 621 that sets the one service area as a communicable range is provided. In order to be able to use more radio resources than other communication processing units, the service area monitoring control unit 630 causes the communication processing unit 621 to connect to a lower priority number of connectable persons set in the other communication processing units. Set a large number of low priority users.

  The service area monitoring control unit 630 stores information indicating the threshold number of connected users of high priority users and information indicating the threshold number of connected users of low priority users. For example, the threshold number of high priority users and the threshold number of low priority users are set in advance in the service area monitoring control unit 630 by an administrator such as an operator. The service area monitoring control unit 630 determines whether or not the value indicated by the high-priority connection number information has reached the high-priority user connection number threshold. In addition, the service area monitoring control unit 630 determines whether or not the value indicated by the low-priority connected user number information has reached the low-priority user connected number threshold. Note that the threshold value for the number of connected users of the high priority user is set to a value smaller than the value indicated by the information on the number of connectable users with high priority. In addition, the threshold value for the number of low priority users is set to a value smaller than the value indicated by the low priority connectable number information.

  The service area monitoring control unit 630 requests the communication processing units 621 to 624 to input the high-priority connection number information and the low-priority connection number information. For example, the service area monitoring control unit 630 inputs, to the communication processing unit 621, an instruction for requesting input of high-priority connection number information and low-priority connection number information at a predetermined timing. Specifically, the service area monitoring control unit 630 inputs the instruction to the communication processing unit 621 every 5 minutes, for example.

  Note that the service area monitoring control unit 630 may be configured to change the interval at which the instruction is input, for example. Specifically, when the value indicated by the high-priority connection number information input from the communication processing unit 621 exceeds a predetermined threshold, the service area monitoring control unit 630, for example, gives the instruction. The interval is changed so as to shorten the input interval. Specifically, the service area monitoring control unit 630, for example, when the value indicated by the high priority connection number information input from the communication processing unit 621 is less than a predetermined threshold, for example, The interval is changed so that the interval for inputting the instruction is lengthened.

  In addition, for example, the service area monitoring control unit 630 has a predetermined timing when the value indicated by the high-priority connection number information input from the communication processing unit 621 exceeds a predetermined threshold value. Before, after a predetermined time (for example, 1 minute) has elapsed from the input of the number of connected users, an instruction for requesting input of high-priority connected number information is input to the communication processing unit 621. Specifically, the service area monitoring control unit 630 that inputs the instruction to the communication processing unit 621 every 5 minutes is the value indicated by the high-priority connection number information input from the communication processing unit 621. Is equal to or greater than a predetermined threshold, for example, after one minute has elapsed since the input of the number of connected users, an instruction for requesting input of the number of connected users with high priority is input to the communication processing unit 621.

  Note that the communication processing unit 621 determines that the current number of high-priority user communication devices 700 that are communicable with the communication processing unit 621 is a predetermined number, regardless of the instruction input from the service area monitoring control unit 630. The service area monitoring control unit 630 may be configured to input high-priority connection number information when the threshold is exceeded.

  The service area monitoring control unit 630 stores high priority connection number information and low priority connection number information input from the communication processing units 621 to 624.

  The service area monitoring control unit 630 uses the high-priority user number information based on the high-priority user connection number threshold value and the high-priority connection number information input from the communication processing units 621 to 624. It is determined whether or not the indicated value has reached the number-of-connections threshold for high-priority users. For example, the service area monitoring control unit 630 is configured to perform the determination when high priority connection number information and low priority connection number information are input from the communication processing units 621 to 624. It may be.

  For example, when the service area monitoring control unit 630 determines that the value indicated by the high priority connection number information input from the communication processing unit 621 has reached the high priority user connection number threshold In addition, based on the number of low priority connectable users set in each communication processing unit 622-624 and the low priority connecter number information input from each communication processing unit 622-624, the number of connected users information The communication processing unit in which the value indicated by the number does not reach the value indicated by the connectable person number information is specified. That is, the service area monitoring control unit 630 identifies a communication processing unit having a sufficient number of low-priority user communication devices 700 that can provide a communication service.

  The service area monitoring control unit 630 subtracts a predetermined value from the value indicated by the low priority connectable number information of the specified communication processing unit, and can connect with high priority set in the communication processing unit 621. The predetermined value is added to the number of persons. For example, the service area monitoring control unit 630 sets a part of the radio resources for the communication device 700 of the low-priority user that can be used by the specified communication processing unit so that the communication processing unit 621 can use it. To a radio resource for the communication device 700 of a high-priority user.

  A specific operation of base station apparatus 600 will be described with reference to FIG. FIG. 8 is an explanatory diagram illustrating an example of the number of connectable persons set in each of the communication processing units 621 to 624 managed by the service area monitoring control unit 630.

  As illustrated in FIG. 8, it is assumed that 3000 is set as the number of connectable persons by the service area monitoring control unit 630, for example, in each of the communication processing units 621 to 624. Then, the service area monitoring control unit 630 sets, for example, 2400 as the number of high priority connectable users among the number of connectable users to the communication processing unit 621, and 600 as the number of low priority connectable users. Is set. In this case, the communication processing unit 621 may use a radio resource capable of providing a communication service to a maximum of 2400 communication devices 700 for communication with the communication device 700 of a high priority user. it can. Further, the communication processing unit 621 can use a radio resource capable of providing a communication service to a maximum of 600 communication devices 700 for communication with the communication device 700 of a low priority user.

  Further, as illustrated in FIG. 8, it is assumed that 3000 is set as the number of connectable users in the communication processing unit 622 by the service area monitoring control unit 630, for example. Then, the service area monitoring control unit 630 sets 1000 to the communication processing unit 622 as the number of high priority connectable users out of the number of connectable users, and 2000 as the number of low priority connectable users. Is set.

  In addition, it is assumed that 2400 is set as the threshold number of connected users of high priority users by the service area monitoring control unit 630 in each of the communication processing units 621 to 624. Furthermore, it is assumed that 600 is set as the threshold number of connected users of low priority users by the service area monitoring control unit 630 in each of the communication processing units 621 to 624.

  At this time, the current number of high-priority user communication devices 700 communicable with the communication processing unit 621 is 2400, and the number of low-priority user communicable with the communication processing unit 622 is further increased. The specific operation of base station apparatus 600 when the current number of communication apparatuses 700 is 500 is as follows.

  The service area monitoring control unit 630 specifies a value indicated by the high priority connection number information and a value indicated by the low priority connection number information in each of the communication processing units 621 to 624. That is, the service area monitoring control unit 630 can communicate with the current number of high-priority user communication devices 700 that can communicate with the communication processing units 621 to 624 and the communication processing units 621 to 624. Identify the current number of low priority user communication devices 700 in the state.

  Then, the service area monitoring control unit 630 determines that the current number (2400) of high-priority user communication devices 700 that are communicable with the communication processing unit 621 is the high-priority user connection number threshold (2400). ) Is reached.

  Furthermore, the value of the number of low-priority connectable users set in each of the communication processing units 622 to 624, and the value indicated by the low-priority connected party number information input from each of the communication processing units 622 to 624 The service area monitoring control unit 630 specifies another communication processing unit different from the communication processing unit 621.

  For example, in the service area monitoring control unit 630, the current number of communication devices 700 of low priority users in a communicable state has reached the value (2000) indicated by the low priority connectable user number information. No communication processing unit 622 is identified. Specifically, for example, the service area monitoring control unit 630 sets the value (2000) of the number of low priority connectable users set in the communication processing unit 622 and the low priority connection input from the communication processing unit 622. The communication processing unit 622 is specified based on the value (500) indicated by the number information. That is, the service area monitoring control unit 630 identifies the communication processing unit 622 as a communication processing unit having a sufficient number of low-priority user communication devices 700 capable of providing a communication service.

  Then, the service area monitoring control unit 630 subtracts 1000 from the value of the number of low priority connectable users set in the communication processing unit 622, and the number of high priority connectable people set in the communication processing unit 621. Add 1000 to the value of. The service area monitoring control unit 630 inputs the changed number of connectable persons information to the communication processing unit 621 and the communication processing unit 622.

  As a result, 3400 is set as the number of connectable persons in the communication processing unit 621, and 1000 is set as the number of connectable persons in the communication processing unit 622. That is, for example, the communication processing unit 621 can use a radio resource capable of providing a communication service to a maximum of 3400 high-priority user communication devices 700. Further, the communication processing unit 622 uses a radio resource that can provide a communication service to the communication devices 700 of a maximum of 1000 low priority users. As described above, the service area monitoring control unit 630 uses the radio resource used for communication with the communication device 700 of the high priority user by the communication processing unit 621 and the communication device 700 of the low priority user by the communication processing unit 621. The ratio with the radio resource used for communication with is changed. In addition, the service area monitoring control unit 630 communicates the radio resources used for communication with the communication device 700 of the high priority user by the communication processing unit 622 and the communication device 700 of the low priority user with the communication processing unit 622. The ratio with the radio resource used for communication is changed.

  FIG. 9 is a flowchart showing the connection number information reporting process executed by the base station apparatus 600.

  The service area monitoring control unit 630 inputs an instruction for requesting input of the high-priority connection number information and the low-priority connection number information to the resource accommodation unit 620 (step S301).

  Based on the input instruction, each of the communication processing units 621 to 624 of the resource accommodating unit 620 is configured to communicate with the current number of communication devices 700 of high-priority users who are in a communicable state and low in a communicable state. The current number of communication devices 700 of priority users is calculated (step S302).

  Each of the communication processing units 621 to 624 of the resource accommodating unit 620 inputs the high priority connection number information and the low priority connection number information to the service area monitoring control unit 630 (step S303). The service area monitoring control unit 630 receives high priority connection number information and low priority connection number information from each of the communication processing units 621 to 624.

  FIG. 10 is a flowchart showing a process for changing the number of connectable users executed by the base station apparatus 600.

  The service area monitoring control unit 630 determines each communication process based on the high priority user number threshold and the high priority connection number information input from the communication processing units 621 to 624 of the resource accommodation unit 620. It is determined whether or not the current number of high-priority user communication devices 700 in a state in which communication with the units 621 to 624 has reached the high-priority user connection number threshold (step S401). In this example, the service area monitoring control unit 630 determines that the current number of high-priority user communication devices 700 in a state where communication with the communication processing unit 621 is possible has reached the threshold number of high-priority user connections. Suppose that it is determined.

  The service area monitoring control unit 630 determines that the current number of communication devices 700 of high-priority users who can communicate with the communication processing unit 621 has reached the threshold number of connected users of high-priority users. In the case (Y in step S401), the number of low priority connectable users set in each communication processing unit 622-624 and the low priority connecter number information input from each communication processing unit 622-624 are used. Based on this, a communication processing unit is identified in which the value indicated by the low priority connection number information does not reach the value indicated by the low priority connectable number information (step S402). In this example, it is assumed that the service area monitoring control unit 630 has identified the communication processing unit 622.

  The service area monitoring control unit 630 instructs the communication processing unit 622 specified in the process of step S402 to change the number of low priority connectable persons (step S403). In this example, in order to change the number of low priority connectable users from 2000 to 1000, the service area monitoring control unit 630 indicates the number of low priority connectable users indicating 1000 to the communication processing unit 622 of the resource accommodating unit 620. Enter information. For example, the service area monitoring control unit 630 inputs, to the identified communication processing unit 622, information indicating radio resources that can provide communication services to the communication devices 700 of 1000 low priority users.

  The communication processing unit 622 of the resource accommodation unit 620 changes the number of low priority connectable persons based on the low priority connectable person number information input from the service area monitoring control unit 630 (step S404). For example, the communication processing unit 622 performs communication processing using radio resources that can provide communication services to 1000 communication devices 700 based on the low priority connectable number information input from the service area monitoring control unit 630. A radio resource is allocated to the communication device 700 of the low-priority user who can communicate with the unit 622. Then, the communication processing unit 622 transmits low priority connectable user number information indicating the assigned radio resource to the communication device 700 of the low priority user.

  The communication processing unit 622 of the resource accommodation unit 620 notifies the service area monitoring control unit 630 that the change of the number of low priority connectable users has been completed (step S405).

  When the communication processing unit 622 notifies that the number of low-priority connectable users has been changed, the service area monitoring control unit 630 sends the number of high-priority connectable users to the communication processing unit 621 of the resource accommodation unit 620. A change is instructed (step S406). In this example, the service area monitoring control unit 630 inputs the high priority connectable person number information indicating 3400 to the communication processing unit 621 in order to change the high priority connectable person number from 2400 to 3400. For example, the service area monitoring control unit 630 inputs, to the communication processing unit 621, high-priority connectable number information indicating radio resources that can provide communication services to the communication devices 700 of 3400 high-priority users. .

  The communication processing unit 621 of the resource accommodating unit 620 changes the number of high priority connectable persons based on the high priority connectable person number information input from the service area monitoring control unit 630 (step S407). For example, the communication processing unit 621 performs communication processing using radio resources that can provide communication services to 3400 communication devices 700 based on the high-priority connectable person number information input from the service area monitoring control unit 630. A radio resource is allocated to the communication device 700 of the high-priority user who is in a state capable of communicating with the unit 621. Then, the communication processing unit 621 transmits information indicating the assigned radio resource to the communication device 700 of the high priority user.

  The communication processing unit 621 of the resource accommodating unit 620 notifies the service area monitoring control unit 630 that the change of the number of high priority connectable users has been completed (step S408).

  In the service area monitoring control unit 630, the current number of communication devices 700 of high priority users who are in a state capable of communicating with the communication processing units 621 to 624 has not reached the threshold number of connected users of high priority users. Is determined (N in step S401), the process ends without instructing the communication processing units 621 to 624 to change the number of connectable users. Each communication processing unit 621 to 624 communicates with each communication device 700.

  According to the present embodiment, the base station device 600 is set in another communication processing unit based on the current number of high priority user communication devices 700 in a state in which communication with one communication processing unit is possible. A predetermined value is subtracted from the value of the number of connectable low priority users, and the predetermined value is added to the value of the number of connectable high priority users set in the one communication processing unit. That is, for example, the base station device 600 may be configured so that the low-priority user is transmitted by another communication processing unit based on the current number of high-priority user communication devices 700 in a state in which communication with one communication processing unit is possible A part of radio resources used for communication with the communication device 700 is set to be unavailable, and is added to the radio resource used for communication with the communication device 700 of the high priority user by one communication processing unit.

  According to such a configuration, the base station apparatus can appropriately communicate with a plurality of communication apparatuses. For example, for a communication processing unit in which the number of high-priority user communication devices capable of providing a communication service is approaching the upper limit value, even when a new high-priority user communication device tries to communicate, The communication processing unit can communicate with the communication device by utilizing newly available radio resources. Further, for example, even when the number of high-priority user communication devices in one service area suddenly increases, the high-priority user communication device that can provide a communication service in the one service area. The number of communication devices of high-priority users who can receive communication services can be increased.

  In the present embodiment, the service area monitoring control unit 630 determines that the current number of communication devices 700 of high priority users in a state where communication with each of the communication processing units 621 to 624 is possible is the number of connected users of the high priority users. It is determined whether or not the number threshold has been reached, but the service area monitoring control unit 630 determines the value of the number of high priority connectable users set in each communication processing unit 621 to 624 and each communication processing unit 621. It may be configured to determine whether or not a difference value from the current number of communication devices 700 of high-priority users in communication with 624 is less than a predetermined threshold. That is, the service area monitoring control unit 630 determines whether or not the remaining number of communication devices 700 of high-priority users that can provide communication services is less than a predetermined threshold in one service area. It may be configured.

  In this embodiment, 1000 is subtracted from the value of the number of low priority connectable users set in the communication processing unit 622. However, the value to be subtracted may not be 1000.

  For example, the service area monitoring control unit 630 calculates a value to be subtracted based on the value indicated by the low priority connectable number information and the value indicated by the low priority connectable number information. It may be configured as follows. For example, the service area monitoring control unit 630 may prevent the value indicated by the low-priority connectable number information obtained by subtracting a predetermined value from being smaller than the value indicated by the low-priority connectable number information. In addition, the predetermined value may be determined.

  Specifically, for example, the value of the number of low-priority connectable users set in the communication processing unit 622 is 2000, which is indicated by the low-priority connection number information input from the communication processing unit 622. When the value is 500, in order for the communication processing unit 621 to use radio resources other than the radio resources allocated to the communication device 700 of the low priority user who can communicate with the communication processing unit 622. The service area monitoring control unit 630 may be configured to subtract 1500 from the value of the number of low priority connectable users set in the communication processing unit 622.

  In the present embodiment, a predetermined value is subtracted from the value of the number of low-priority connectable users set in one communication processing unit, but the low-priority connection set in a plurality of communication processing units. A predetermined value may be subtracted from the value of the number of possible persons. For example, the service area monitoring control unit 630 determines the value of the number of low priority connectable users set in the plurality of communication processing units based on the number of low priority connectable users set in the plurality of communication processing units. The predetermined value is subtracted from the plurality of communication processing units, and the predetermined value is added to the value of the number of high priority connectable users set in another communication processing unit different from the plurality of communication processing units. Also good.

  Specifically, for example, 2000 is set as the number of low priority connectable users in the communication processing unit 622, and 1000 is set as the number of low priority connectable people in the communication processing unit 623. And Further, it is assumed that the current number of communication devices 700 in a state capable of communicating with the communication processing unit 622 is 500, and the current number of communication devices 700 in a state capable of communicating with the communication processing unit 623 is 500.

  At this time, the service area monitoring control unit 630 determines the value (2000) of the number of low priority connectable users set in the communication processing unit 622 and the number of low priority connectable users set in the communication processing unit 623. Communication processing unit 622 and communication processing unit 623 based on the value of 1000 (1000) and the value (500) indicated by the number of connected users input from communication processing unit 622 and communication processing unit 623. Identify. That is, the service area monitoring control unit 630 identifies the communication processing unit 622 and the communication processing unit 623 as communication processing units having a sufficient number of communication devices 700 that can provide a communication service.

  Then, the service area monitoring control unit 630 subtracts 500 from the value of the number of low priority connectable users set in the communication processing unit 622, and the number of low priority connectable people set in the communication processing unit 623. It may be configured to subtract 500 from this value and add 1000 to the value of the number of high priority connectable users set in the communication processing unit 621.

  Further, in the present embodiment, when the value indicated by the high-priority connection number information reaches the high-priority user number threshold, the low-priority connection set in the communication processing unit 622 An example in which a predetermined value is subtracted from the value of the number of possible users and the predetermined value is added to the value of the number of high priority connectable users set in the communication processing unit 621 is shown. However, when the value indicated by the low-priority connection number information reaches the low-priority user connection number threshold, the value of the high-priority connectable number set in the communication processing unit 622 The predetermined value may be subtracted from the value, and the predetermined value may be added to the value of the number of low priority connectable users set in the communication processing unit 621. For example, the service area monitoring control unit 630 communicates the radio resources used for communication with the communication device 700 of the high priority user by the communication processing unit 621 and the communication device 700 of the low priority user by the communication processing unit 621. The ratio with the radio resource used for communication is changed. The service area monitoring control unit 630 also includes, for example, a wireless resource used for communication with the communication device 700 of the high priority user by the communication processing unit 622 and a communication device 700 of the low priority user by the communication processing unit 622. The ratio with the radio resource used for communication with is changed.

  In the present embodiment, a predetermined value is subtracted from the value of the number of low priority connectable persons set in the communication processing unit 622, but the low priority connectable person set in the communication processing unit 621. A predetermined value may be subtracted from the numerical value.

  Specifically, for example, in the service area monitoring control unit 630, the value indicated by the high-priority connection number information input from the communication processing unit 621 has reached the high-priority user connection number threshold. In this case, a predetermined value is subtracted from the value of the number of low priority connectable users set in the communication processing unit 621, and the predetermined value is subtracted from the value of the number of high priority connectable users set in the communication processing unit 621. May be configured to add the values of.

  In addition, the service area monitoring control unit 630 sends the communication processing unit 621 to the communication processing unit 621 when the value indicated by the low priority connection number information of the communication processing unit 621 reaches the low priority user number threshold. The predetermined value is subtracted from the set value of the number of high priority connectable persons, and the predetermined value is added to the value of the low priority connectable number of persons set in the communication processing unit 621. May be.

  In addition, the service area monitoring control unit 630 sets the communication processing unit 622 to the communication processing unit 622 when the current number of the low-priority user communication devices 700 that can communicate with the specified communication processing unit 622 is zero. It may be configured to add all the values of the number of connectable low priority users to the value of the number of connectable high priority users set in the communication processing unit 621.

  In addition, the service area monitoring control unit 630 may be configured to change the threshold number of connected users of high priority users and the threshold number of connected users of low priority users.

  Specifically, for example, it is assumed that 3000 is set as the number of connectable users in the communication processing unit 621 by the service area monitoring control unit 630, for example. In the communication processing unit 621, for example, it is assumed that 1800 is set as the number of connectable high priority users and 1200 is set as the number of connectable low priority users. In the communication processing unit 621, for example, it is assumed that 1800 is set as the number-of-connections threshold for high-priority users and 1200 is set as the number-of-connections threshold for low-priority users.

  At this time, the current number of low-priority user communication devices 700 communicable with the communication processing unit 621 is 1200, and further, the number of high-priority user communicable with the communication processing unit 621 is increased. The specific operation of base station apparatus 600 when the current number of communication apparatuses 700 is 500 is as follows.

  The service area monitoring control unit 630 is in a state in which communication with the communication processing unit 621 is possible based on the low-priority connection number information input from the communication processing unit 621 and the low-priority user connection number threshold. It is determined that the current number (1200) of low-priority user communication devices 700 has reached the low-priority user connection number threshold (1200).

  Then, for example, the service area monitoring control unit 630, based on the value (1800) indicated by the high priority connectable number information and the value (500) indicated by the high priority connectable number information, The communication processing unit 621 is specified. That is, the service area monitoring control unit 630 identifies the communication processing unit 621 as a communication processing unit having a sufficient number of communication devices 700 of high priority users that can provide a communication service.

  The service area monitoring control unit 630 subtracts 300 from the value of the number of high priority connectable people set in the communication processing unit 621, and the value of the number of low priority connectable people set in the communication processing unit 621. Add 300 to. The service area monitoring control unit 630 inputs the changed high priority connectable person number information and the changed low priority connectable person number information to the communication processing unit 621.

  Furthermore, the service area monitoring control unit 630 changes the connection number threshold of high priority users set in the communication processing unit 621 from 1800 to 1500, and changes the connection number threshold of low priority users from 1200. Change to 1500. The service area monitoring control unit 630 stores the changed threshold number of high priority users and the changed threshold number of low priority users.

  According to such a configuration, the service area monitoring control unit 630 can appropriately manage radio resources based on the changed number-of-connections threshold value.

  The wired communication unit 610 is realized by a transmission circuit and a reception circuit.

  The resource storage unit 620 and the communication processing units 621 to 624 are realized by a CPU that executes processing according to program control, a plurality of circuits, a memory, a transmission circuit, a reception circuit, an antenna, and the like.

  For example, the resource storage unit 620 and the communication processing units 621 to 624 may be configured to execute predetermined processing using processing resources such as a CPU, a plurality of circuits, and a memory.

  In addition, the service area monitoring control unit 630 includes the resource storage unit 620 and each communication depending on the amount of data traffic assumed in communication between the communication processing units 621 to 624 and the communication device 700 and the processing load. The processing resources 621 to 624 may be configured to determine the amount of processing resources (for example, the number of CPUs, the number of memories, etc.). For example, the service area monitoring control unit 630 determines the amount of processing resources used by the communication processing unit 621 according to the load of signal processing performed by the communication processing unit 621. For example, the communication processing unit 621 uses the processing resources to allocate radio resources to the communication device 700, perform carrier wave modulation processing, carrier wave demodulation processing, signal transmission processing to the communication device 700, and communication device 700. Signal reception processing from the communication unit 601 and communication processing for communicating with each other between the communication processing unit 621 and the communication device 700 are performed.

  Further, for example, the number of high priority connectable persons and the number of low priority connectable persons set in each of the communication processing units 621 to 624 may be configured to be determined based on the amount of processing resources. . For example, the service area monitoring control unit 630 sets the number of connectable persons in the communication processing units 621 to 624 based on the amount of processing resources available in the resource accommodation unit 620 and the communication processing units 621 to 624. Specifically, for example, when a communication service is provided to a maximum of 2400 high-priority user communication devices 700 in a service area that can communicate with the communication processing unit 621, the communication processing unit 621 and the maximum The service area is configured so that the communication processing unit 621 can process the data traffic according to the amount of data traffic and the processing load assumed in communication with the communication device 700 of 2400 high-priority users. The monitoring control unit 630 determines the amount of processing resources used by the communication processing unit 621 out of the total amount of processing resources available by the communication processing units 621 to 624, and the communication processing unit 621 has a high priority connectable person. Set the number to 2400.

  In addition, the service area monitoring control unit 630 changes the communication processing units 621 to 624 when changing the number of high priority connectable persons and the number of low priority connectable persons set in the communication processing units 621 to 624. May be configured to change the ratio of the amount of processing resources used.

  Specifically, for example, when the number of high priority connectable users set in the communication processing unit 621 is changed from 2400 to 3400 as in the process of changing the connectable user number information illustrated in FIG. The service area monitoring control unit 630 is determined according to the amount of data traffic and processing load assumed in communication between the communication processing unit 621 and the communication device 700 of up to 2400 high priority users. The amount of processing resources is determined according to the amount of data traffic and processing load assumed in communication between the communication processing unit 621 and the communication device 700 of up to 3400 high-priority users. Change to

  Further, when the number of low priority connectable users set in the communication processing unit 622 is changed from 2000 to 1000 as in the process of changing the connectable user number information shown in FIG. The unit 630 determines the amount of processing resources determined according to the amount of data traffic and processing load assumed in communication between the communication processing unit 622 and the communication device 700 of up to 2000 low priority users. Is changed to the amount of processing resources according to the amount of data traffic and processing load assumed in communication between the communication processing unit 622 and the communication device 700 of a maximum of 1000 low priority users. For example, the service area monitoring control unit 630 reduces the amount of processing resources used by the communication processing unit 622 and adds the processing resources to the amount of processing resources used by the communication processing unit 621.

  The service area monitoring control unit 630 is realized by, for example, a CPU that executes processing according to program control, a plurality of circuits, and a memory.

<Third Embodiment>
Next, the base station 10 of 3rd Embodiment is demonstrated with reference to drawings.

  FIG. 11 is a block diagram illustrating a configuration example of the base station 10 according to the third embodiment. As illustrated in FIG. 11, the base station 10 includes a communication unit 11, a communication unit 12, and an addition unit 13.

  The base station 10 corresponds to, for example, the base station device 100 and the RRHs 401 to 404 in the first embodiment shown in FIG. The base station 10 corresponds to, for example, the base station device 600 and the RRHs 401 to 404 in the second embodiment illustrated in FIG.

  The communication unit 11 corresponds to, for example, the communication processing unit 121 in the first embodiment illustrated in FIG. The communication unit 11 corresponds to, for example, the communication processing unit 621 in the second embodiment illustrated in FIG. The communication unit 12 corresponds to, for example, the communication processing unit 122 in the first embodiment illustrated in FIG. The communication unit 12 corresponds to, for example, the communication processing unit 622 in the second embodiment illustrated in FIG.

  The adding unit 13 corresponds to, for example, the service area monitoring control unit 130 in the first embodiment shown in FIG. 2 or the service area monitoring control unit 630 in the second embodiment shown in FIG.

  The communication unit 11 communicates with a plurality of communication devices. The communication unit 12 communicates with a plurality of communication devices. The plurality of communication devices correspond to, for example, the communication device 200 in the first embodiment shown in FIG. 1 or the communication device 700 in the second embodiment shown in FIG.

  When the number of communication devices with which the communication unit 11 can communicate becomes equal to or greater than a predetermined threshold, the adding unit 13 is a resource used by the communication unit 12 as a resource used for communication with the communication device by the communication unit 11 Add at least part of The resource used for communication with the communication device by the communication unit 11 is, for example, a radio resource based on the value of the number of connectable users set in the communication processing unit 121 in the first embodiment, the first embodiment. Processing resources used by the communication processing unit 121 in FIG. 1, wireless resources based on the value of the number of high priority connectable users set in the communication processing unit 621 in the second embodiment, or the communication processing unit in the second embodiment This corresponds to the processing resource used by 621. Further, the resource used by the communication unit 12 is, for example, a radio resource based on the value of the number of connectable users set in the communication processing unit 122 in the first embodiment, and the communication processing unit 122 in the first embodiment. Processing resources used, wireless resources based on the value of the number of low priority connectable users set in the communication processing unit 622 in the second embodiment, or processing used by the communication processing unit 622 in the second embodiment Corresponds to a resource. The predetermined threshold corresponds to, for example, the number of connected users threshold in the first embodiment or the number of connected users of high priority users in the second embodiment. Further, the number of communication devices that can communicate with the communication unit 11 corresponds to, for example, the current number of communication devices 200 in a state in which communication with the communication processing unit 121 in the first embodiment is possible. In addition, the number of communication devices that the communication unit 11 can communicate with corresponds to, for example, the current number of high-priority user communication devices 700 that can communicate with the communication processing unit 621 in the second embodiment. .

  According to the present embodiment, the base station 10 communicates with a plurality of communication devices. In addition, when the number of communication devices with which the base station 10 can communicate becomes equal to or greater than a predetermined threshold, the base station 10 is used by the base station 10 for resources used by the base station 10 for communication with the communication device. Add at least some of the available resources.

  Therefore, the base station 10 can appropriately communicate with a plurality of communication devices.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to each above-mentioned embodiment. The present invention can be implemented based on modifications, substitutions, and adjustments of the embodiments. The present invention can also be implemented by arbitrarily combining the embodiments. That is, the present invention includes various modifications and corrections that can be realized in accordance with all the disclosed contents and technical ideas of the present specification. In addition, the drawing reference numerals attached to each drawing are added to each element for convenience as an example for facilitating understanding, and are not intended to limit the present invention to the illustrated embodiment. Moreover, the direction of the arrow in the drawing shows an example, and does not limit the direction of the signal between the blocks.

A part or all of the above-described embodiment can be described as in the following supplementary notes, but is not limited thereto.
(Appendix 1)
A plurality of communication means for communicating with a plurality of communication devices;
When the number of communication devices with which one communication means can communicate becomes equal to or greater than a predetermined threshold, the resources used for communication with the communication device by the one communication means are the resources used by other communication means. A base station comprising: an additional means for adding at least a part.
(Appendix 2)
In one cell indicating a range communicable with the one communication means, when the number of the communication devices with which the one communication means can communicate becomes equal to or greater than a predetermined threshold, the additional means In the cell, the resource used for communication with the communication device by the one communication means is at least one of the resources used by the other communication means in another cell indicating a range communicable with the other communication means. A base station as set forth in appendix 1.
(Appendix 3)
When the number of the communication devices that can communicate with the one communication unit is equal to or greater than a predetermined threshold, the additional unit includes a plurality of resources used for communication with the communication device by the one communication unit. The base station according to Supplementary Note 1 or 2, wherein at least a part of resources used by the other communication means is added.
(Appendix 4)
A priority is set for each of the plurality of communication devices,
The adding means includes, in the one communication means, a resource used for communication with a communication apparatus set with a higher priority and a resource used for communication with a communication apparatus set with a lower priority. In the other communication means, the resource used for communication with the communication device set with a higher priority and the resource used for communication with the communication device set with a lower priority are changed. The base station according to any one of appendices 1 to 3, wherein the ratio is changed.
(Appendix 5)
The base according to any one of appendices 1 to 4, further comprising a changing unit that changes the predetermined threshold when the number of the communication devices with which the one communication unit can communicate is equal to or greater than a predetermined threshold. Bureau.
(Appendix 6)
In one cell indicating a range communicable with the one communication means, when the number of the communication devices with which the one communication means can communicate becomes equal to or greater than a predetermined threshold, the additional means In the cell, at least a part of another resource used by the one communication unit in the one cell is added to the resource used for communication with the communication device by the one communication unit. The base station according to any one of the above.
(Appendix 7)
The resource used by the other communication means is based on the upper limit value of the number of communication devices that can communicate with the communication means using the resource, and the current number of the communication devices that are in a state capable of communicating with the communication means. The base station according to any one of appendices 1 to 6.
(Appendix 8)
The addition unit deletes a predetermined resource from resources used by the other communication unit, and adds the predetermined resource to a resource used for communication with the communication device. Base station described in.
(Appendix 9)
The base station according to any one of appendices 1 to 8,
The communication device communicating with the base station;
A communication system comprising: another communication device that communicates with the base station.
(Appendix 11)
Communicate with multiple communication devices,
A communication method for adding at least a part of another resource to a resource used for communication with the communication device when the number of communicable communication devices is equal to or greater than a predetermined threshold.
(Appendix 12)
On the computer,
Communication processing for causing a plurality of communication means to communicate with a plurality of communication devices;
When the number of communication devices with which one communication means can communicate becomes equal to or greater than a predetermined threshold, the resources used for communication with the communication device by the one communication means are the resources used by other communication means. A communication control program that executes additional processing to add at least a part.

DESCRIPTION OF SYMBOLS 1, 2 Communication system 10 Base station 11, 12 Communication part 13 Additional part 100, 600 Base station apparatus 110, 610 Wired communication part 120, 620 Resource accommodation part 121, 122, 123, 124, 621, 622, 623, 624 Communication Processing unit 130, 630 Service area monitoring control unit 200, 700 Communication device 300 Core network 401, 402, 403, 404 RRH
501, 502, 503, 504 service area

Claims (9)

A plurality of communication means for communicating with a plurality of communication devices;
When the number of communication devices with which one communication means can communicate becomes equal to or greater than a predetermined threshold, the resources used for communication with the communication device by the one communication means are the resources used by other communication means. A base station comprising: an additional means for adding at least a part. In one cell indicating a range communicable with the one communication means, when the number of the communication devices with which the one communication means can communicate becomes equal to or greater than a predetermined threshold, the additional means In the cell, the resource used for communication with the communication device by the one communication means is at least one of the resources used by the other communication means in another cell indicating a range communicable with the other communication means. The base station according to claim 1. When the number of the communication devices that can communicate with the one communication unit is equal to or greater than a predetermined threshold, the additional unit includes a plurality of resources used for communication with the communication device by the one communication unit. The base station according to claim 1, wherein at least part of resources used by the other communication means is added. A priority is set for each of the plurality of communication devices,
The adding means includes, in the one communication means, a resource used for communication with a communication apparatus set with a higher priority and a resource used for communication with a communication apparatus set with a lower priority. In the other communication means, the resource used for communication with the communication device set with a higher priority and the resource used for communication with the communication device set with a lower priority are changed. The base station according to claim 1, wherein the ratio is changed. 5. The apparatus according to claim 1, further comprising a changing unit that changes the predetermined threshold when the number of the communication devices that can communicate with the one communication unit becomes equal to or greater than a predetermined threshold. base station. In one cell indicating a range communicable with the one communication means, when the number of the communication devices with which the one communication means can communicate becomes equal to or greater than a predetermined threshold, the additional means 6. In the cell, at least a part of other resources used by the one communication unit in the one cell is added to resources used for communication with the communication device by the one communication unit. The base station according to any one of the above. A base station according to any one of claims 1 to 6,
The communication device communicating with the base station;
A communication system comprising: another communication device that communicates with the base station. Communicate with multiple communication devices,
A communication method for adding at least a part of another resource to a resource used for communication with the communication device when the number of communicable communication devices is equal to or greater than a predetermined threshold. On the computer,
Communication processing for causing a plurality of communication means to communicate with a plurality of communication devices;
When the number of communication devices with which one communication means can communicate becomes equal to or greater than a predetermined threshold, the resources used for communication with the communication device by the one communication means are the resources used by other communication means. A communication control program that executes additional processing to add at least a part.

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