JP2011024173A - Control apparatus and determination method for call restriction - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a control apparatus which prevents an unnecessary call restriction when line congestion is not increased at an accelerated pace depending on a communication network used for a connection between a calling terminal and a called terminal, and a determination method for a call restriction. <P>SOLUTION: Upon a call from a calling terminal 70a to a called terminal 70b, a used communication network determination function 54 of a called-subscriber information management server 10b determines a communication network used for a connection between the calling terminal 70a and the called terminal 70b based on an in-zone state of the called terminal 70b. When the communication network used is determined as an extension network, a call restriction determination function 55 determines not to perform a call restriction for a calling area even though the area has line congestion. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a transmission restriction control device that controls restriction of transmission processing from a calling terminal to a called terminal, and a transmission restriction determination method.

  In a conventional mobile communication network, various devices have been devised to alleviate the congestion state where calls are concentrated. For example, when a calling area including a radio control device on the calling side and an exchange is in a congested state, a certain restriction on outgoing call processing is performed by performing a percent restriction such as a network resource usage rate. Further, when the congestion state is relatively light, a restriction determination is made based on the contract type of the caller so that the congestion is not accelerated further, and communication according to priority is ensured.

Further, in Patent Document 1, in a wireless IP telephone having an IP extension telephone function, when an access point to be used is congested, a wireless IP that performs IP telephone communication via the congested access point. It describes that the telephone is notified that the access point is busy and the connection is forcibly disconnected. Further, Patent Document 2 describes that connection control is performed according to call priority.
On the other hand, in recent mobile communication networks, in addition to the wireless network that is the equipment of mobile communication carriers and the external network that passes through the exchange (see FIG. 8), it also passes through the data transfer device between base stations installed on the premises. An extension network is used (see FIG. 9).

JP 2007-235442 A JP-A-5-268250

When connecting with the extension network, the equipment of the mobile communication carrier such as the radio control device and the exchange is used until the communication between the calling terminal and the called terminal is established. Since it is not used, congestion in the calling area is not accelerated. However, conventionally, when congestion occurs in the calling area, even when the communication network used for communication between the calling terminal and the called terminal is an extension network, the calling process is restricted. It was. For this reason, even when congestion is not accelerated depending on the communication network used, there has been a problem that call processing is restricted more than necessary and the call is disconnected.
The present invention has been made to solve the above-described problems of the prior art, and when the congestion is not accelerated depending on the communication network used for communication between the calling terminal and the called terminal, the calling process is performed. It is an object of the present invention to provide a transmission restriction control device and a transmission restriction determination method that prevent the restriction.

  In order to solve the above-described problem, a transmission restriction control device according to claim 1 includes a congestion acceleration network that is a communication network that accelerates congestion and a non-congestion acceleration network that is a communication network that does not accelerate congestion. In a communication network, a transmission restriction control device that controls the restriction of outgoing call processing accompanying outgoing calls from a calling terminal according to the occurrence of congestion, and when there is a call from a calling terminal to a called terminal, The non-congestion acceleration by the used communication network determining means for determining a communication network used for communication between the calling terminal and the called terminal based on the presence state of the called terminal, and the used communication network determining means When a network is determined as the communication network to be used, the mobile communication network includes a transmission restriction determination unit that determines that the transmission process is not restricted even if congestion occurs in the mobile communication network. To do.

  According to the present invention, when the non-congestion acceleration network is determined as a communication network used for connection between the calling terminal and the called terminal, the call restriction control device can perform call processing even if congestion has occurred. Therefore, when a communication network that does not accelerate congestion is used, it is possible to prevent the transmission processing from being restricted. Therefore, restriction of outgoing calls that do not cause congestion can be suppressed, and the number of outgoing calls that can be connected increases even during congestion.

According to a second aspect of the present invention, there is provided a transmission restriction control device according to the first aspect, wherein the congestion acceleration network is an external network that passes through a radio control device and a switch managed by a mobile communication carrier, and the non-congestion acceleration network is It is an extension network that passes through a data transfer device between base stations installed on the premises.
ADVANTAGE OF THE INVENTION According to this invention, when the extension network which does not accelerate congestion is selected, it can prevent restrict | sending an outgoing call process.

According to a third aspect of the present invention, there is provided a call restriction control device according to the first or second aspect, wherein the call type transmitted from the calling terminal has a priority according to the content of the mobile communication service contract of the calling terminal. When there are a normal call and a non-priority call to be set and the calling terminal and the called terminal are subscribed to a group contract belonging to the same group, intra-group communication is possible. The call restriction determination means is a non-priority call type of call originated from the calling terminal, and communication between the calling terminal and the called terminal is intra-group communication, and Only when the congestion accelerating network is determined as the communication network to be used by the communication network determining means, it is determined that the outgoing call processing is restricted when the congestion occurs.
According to the present invention, when the congestion acceleration network is selected as the communication network to be used, the type of call originated from the originating terminal is a non-priority call, and the originating terminal and the terminating terminal Since the outgoing call processing at the time of congestion is restricted only when the communication is intra-group communication, the outgoing call processing can be restricted only in a limited case, and the number of calls to be disconnected can be reduced.

The transmission restriction determination method according to claim 4, wherein a congestion occurrence state is provided in a mobile communication network including a congestion acceleration network that is a communication network that accelerates congestion and a non-congestion acceleration network that is a communication network that does not accelerate congestion. A call restriction control method executed by a call restriction control device that restricts call processing associated with a call from a calling terminal according to the call, and when there is a call from the calling terminal to the called terminal, A use communication network determination step for determining a communication network to be used for communication between the calling terminal and the called terminal based on a location state of the terminal; and the non-congestion acceleration network in the use communication network determination step When it is determined as a communication network to be used, there is provided a transmission restriction determination step for determining that the transmission processing is not restricted even if congestion occurs in the mobile communication network.
According to the present invention, when the non-congestion acceleration network is determined as a communication network used for connection between the calling terminal and the called terminal, the call restriction control device can perform call processing even if congestion has occurred. Therefore, when a communication network that does not accelerate congestion is used, it is possible to prevent the transmission processing from being restricted.

  According to the present invention, when the non-congestion acceleration network is determined as a communication network used for connection between the calling terminal and the called terminal, the call restriction control device can perform call processing even if congestion has occurred. Therefore, when a communication network that does not accelerate congestion is used, it is possible to prevent the transmission processing from being restricted. Therefore, restriction of outgoing calls that do not cause congestion can be suppressed, and the number of outgoing calls that can be connected increases even during congestion.

It is a block diagram which shows the whole structure of the mobile communication network which concerns on embodiment of this invention. It is a block diagram which shows the function structure of the subscriber information management server which concerns on the same embodiment. It is a block diagram which shows the function structure of the transmission / reception control part which concerns on the same embodiment. It is a figure which shows the list | wrist of the presence or absence of control of the transmission process determined by the transmission control determination function which concerns on the embodiment. It is a figure which shows the specific example of the presence or absence of control of the transmission process determined by the transmission control determination function which concerns on the embodiment. It is a figure which shows the outline | summary of the transmission control process performed with the mobile communication network which concerns on the embodiment. It is a flowchart which shows the flow of the transmission control process performed after the transmission / reception switch which concerns on the embodiment receives a transmission request from a calling side terminal. It is a figure which shows an example of the line | wire at the time of the external line connection in the past. It is a figure which shows an example of the line | wire at the time of the extension line connection in the past.

Embodiments of the present invention will be described below with reference to the drawings. In each drawing referred to in the following description, components equivalent to those in the other drawings are denoted by the same reference numerals.
(System configuration)
FIG. 1 is a block diagram showing the overall configuration of a mobile communication network according to an embodiment of the present invention. The mobile communication network according to the present embodiment includes a calling subscriber information management server 10a, a called subscriber information management server 10b, a calling exchange 20a, a called exchange 20b, a calling radio control apparatus 30a, which are managed by a predetermined mobile communication business. Landing radio controller 30b, originating radio base station 40a, terminating radio base station 40b, GMMS (Gateway Mobile Multimedia Switching System) 50, originating base station data transfer device 60a, inter-arriving base station data transfer device 60b, a calling terminal 70a, and a called terminal 70b. These devices constituting the mobile communication network include a CPU (Central Processing Unit) for controlling the whole, a RAM (Random Access Memory) for storing various software, a ROM (Read Only Memory), a storage device including a hard disk, and the like, And a communication device that controls communication.

Note that, in the following description, when there is no particular distinction between the originating side and the terminating side of each device constituting the mobile communication network, “subscriber information management server 10”, “exchange 20”, “wireless control device” 30 ”,“ radio base station 40 ”,“ inter-base station data transfer device 60 ”, and“ terminal 70 ”.
The wireless control device 30 acquires and holds information indicating in which area the terminal 70 is located, triggered by the location registration of the terminal 70.

The inter-originating base station data transfer device 60a and the inter-destination base station data transfer device 60b are installed in a premises such as a building or between premises, and enable fixed-rate communication between the terminals 70 via an extension network. Here, the “extension network” is a communication network that passes through the originating radio base station 40a, the originating base station data transfer device 60a, the terminating base station data transfer device 60b, and the terminating radio base station 40b. The extension network is a communication network that does not accelerate congestion because it is used only by a user who installs the data transfer device 60a between base stations and the data transfer device 60b between destination base stations and the number of calls is limited.
On the other hand, a communication line that passes through the originating exchange 20a, the terminating exchange 20b, the originating radio control device 30a, and the terminating radio control device 30b managed by the mobile communication carrier is referred to as an “external network”. The external network is a communication network that accelerates congestion because calls from a plurality of terminals 70 are concentrated.

(Configuration of subscriber information management server)
FIG. 2 is a block diagram showing a functional configuration of the subscriber information management server 10. As shown in the figure, the subscriber information management server 10 includes a subscriber database 1, a control unit 2, and an exchange interface (IF) 6.
The subscriber database 1 stores a subscriber profile corresponding to a mobile communication service contract of a user who uses the terminal 70.
Here, as mobile communication service contracts, there are pay-as-you-go contracts and flat-rate telephone call contracts, and group contracts as communication forms.
“Group contract” is a flat-rate call service contract within a group, and a flag indicating whether or not a group contract exists is stored as a subscriber profile, and a group number is stored when a group contract is concluded. . Intra-group communication is possible when the group number is the same between the calling terminal 70a and the called terminal 70b.

  In addition, the type of outgoing call sent from the calling terminal 70a is determined according to the contract content of the billing form. For example, when the billing mode is a pay-as-you-go contract or a high-price flat-rate call contract, it is handled as a “normal call” that prioritizes call connection over “non-priority call”. Note that the type of outgoing call may be determined in advance according to the contract type of the billing form, whether it is a normal call contract or a non-priority call contract depending on the call type contract.

Further, the subscriber database 1 stores information changed in response to an inquiry about subscriber information from a subscriber information processing unit 3 to be described later, or changed by a subscriber profile change process.
The exchange IF6 is a communication interface that controls communication with the originating exchange 20a and the destination exchange 20b.
The control unit 2 is a function realized by the CPU executing processing according to software stored in the storage device. The subscriber information processing unit 3, the in-zone information acquisition unit 4, and the outgoing / incoming control unit 5 And.

The subscriber information processing unit 3 accesses the subscriber database 1 in order to acquire a subscriber profile in response to a request from the outgoing / incoming call control unit 5, or changes information obtained by changing the subscriber profile. 1 is notified.
The in-zone information acquisition unit 4 acquires the in-zone information (whether in the extension network or in the outside network) of the destination exchange 20b by transmitting a subscriber location inquiry request via the exchange IF6. The result is transmitted to the outgoing / incoming call control unit 5.
The outgoing / incoming control unit 5 controls outgoing / incoming calls of the outgoing terminal 70a and the incoming terminal 70b.

FIG. 3 is a block diagram showing a functional configuration of the outgoing / incoming call control unit 5. As shown in the figure, the outgoing / incoming control unit 5 includes an incoming party contract determination function 51, a group ID verification function 52, a congestion state determination function 53, a used communication network determination function 54, and an outgoing call restriction determination function 55. It has.
The receiver contract determination function 51 determines the contract details of the receiver. Specifically, the subscriber database 1 is accessed via the subscriber information processing unit 3, the subscriber profile of the called terminal 50b is acquired, and the contract content included in the subscriber profile is determined.

The group ID checking function 52 checks whether the calling terminal 70a and the called terminal 70b have a group contract by checking the group numbers included in the subscriber profiles of the calling terminal 70a and the called terminal 70b. judge.
The congestion state determination function 53 determines the congestion state of the calling area including the calling radio control device 30a and the calling switch 20a. For example, if the resource usage rate in the originating radio control device 30a and the originating exchange 20a is equal to or greater than a predetermined threshold, it is determined that congestion has occurred in the originating area, and if it is less than the predetermined threshold, the congestion is It is determined that it has not occurred. The resource usage rate includes, for example, a CPU usage rate, a buffer usage rate of data to be processed, and the like.

  The used communication network determination function 54 determines whether or not the calling terminal 70b is based on the located state of the called terminal 70b obtained from the located information acquisition unit 4 when there is a call from the calling terminal 70a to the called terminal 70b. The communication network used for communication between 70a and the called terminal 70b is determined. Specifically, the used communication network determining function 54 determines that the communication network to be used is an extension network when the called terminal 70b is in the extension network, and the called terminal 70b is in the outside network. If it is in the service area, the communication network to be used is determined to be an external network. If both are present, the communication network to be used may be determined as the extension network.

The outgoing call restriction determination function 55 determines whether or not to restrict outgoing call processing associated with outgoing calls from the calling terminal 70a. Here, “transmission processing accompanying transmission” refers to transmission / reception of control signals in the mobile communication network until communication between the calling terminal 70a and the called terminal 70b is connected based on the transmission from the calling terminal 70a. Say.
For example, when the use communication network determination function 54 determines that the extension network is a communication network used by the extension network, the call restriction determination function 55 determines that call processing is not restricted even if congestion occurs.
Further, the call restriction determination function 55 is such that the type of the call transmitted from the calling terminal 70a is a non-priority call, the communication between the calling terminal 70a and the called terminal 70b is intra-group communication, and When the used communication network determination function 54 determines that the external network is a communication network to be used, it is determined that call processing is restricted when congestion occurs.

  FIG. 4 is a diagram showing a list of presence / absence of restriction of outgoing call processing determined by the outgoing call restriction determination function 55 depending on the type of outgoing call and the type of communication network used for communication when the calling area is congested. . As shown in the figure, if the outgoing call is a normal call, the outgoing call is a non-priority call and communication outside the group, or the outgoing call is a non-priority call, intra-group communication and extension connection, the outgoing call processing is restricted. It is determined not to. On the other hand, in the case of a non-priority call, intra-group communication, and external line connection, it is determined that call processing is restricted.

FIG. 5 shows a specific example of presence / absence of restriction of outgoing call processing determined by the outgoing call restriction determination function 55 depending on the type of outgoing call and the type of communication network used for communication when the calling area is congested. Here, it is assumed that the calling terminal 70a can be connected to an extension line or an outside line.
As shown in the figure, pattern 1 indicates that when the outgoing call is a normal call, the outgoing call processing is not restricted regardless of whether there is a group contract or whether the extension is in an external area or an external area. ing.

In pattern 2, when the outgoing call is a non-priority call, the group number of the group contract of the calling terminal 70a is “100”, and the group number of the group contract of the called terminal 70b is “200”, the group number Therefore, it is indicated that the outgoing call processing is not regulated regardless of whether it is in the extension line or outside line.
In pattern 3, the outgoing call is a non-priority call, the group number of the group contract of the calling terminal 70a is "100", the group number of the group contract of the called terminal 70b is "100", and the called terminal 70b is In the case of an extension area, the group number matches and the extension connection is established, indicating that the calling process is not restricted.
In pattern 4, the outgoing call is a non-priority call, the group number of the group contract of the calling terminal 70a is "100", the group number of the group contract of the called terminal 70b is "100", and the called terminal 70b is In the case of an outside line area, the group number matches, but it is an outside line connection, so that the outgoing call processing is restricted.

(Outline of outgoing call restriction processing)
Next, with reference to FIG. 6, the outline | summary of the transmission control process performed in a mobile communication network is demonstrated.
First, a user who uses the calling terminal 70a performs a calling operation by inputting the telephone number of the called terminal 70b. Thereby, the transmission terminal 70a transmits the transmission request to the transmission / reception exchange 20a via the transmission / radio base station 40a and the transmission / radio control apparatus 30a.
Upon receiving a call request from the calling terminal 70a, the calling switch 20a determines the contract of the calling terminal 70a based on the calling number (step S2), and the call contract type of the caller, the group ID, the called number, Then, a callee information acquisition request signal including the presence / absence of congestion in the calling area is transmitted to the called subscriber information management server 10b (step S3).

  The called party contract determination function 51 of the called party information management server 10b searches the called party's subscriber profile stored in the subscriber database 1 based on the called party number included in the called party information acquisition request signal, Determine the contract details of the called party. When the group number is included in the subscriber profile of the called party, the group ID matching function 52 checks the group number of the calling party, and if the group number is matched, it is determined as intra-group communication. If they do not match, it is determined that the communication is outside the group (step S4).

  In step S5, if there is congestion in the calling area and the outgoing call is a non-priority call, the located area information acquisition unit 4 of the called subscriber information management server 10b determines the presence of the called terminal 70b. Perform area judgment. Specifically, the location information acquisition unit 4 transmits a subscriber location information inquiry request to the destination exchange 20b. As a result, the destination exchange 20b transmits a location confirmation request to the destination terminal 70b, and the destination terminal 70b returns a location confirmation response. The destination exchange 20b transmits a location information report request of the destination exchange 20b to the destination radio control apparatus 30b based on the received location confirmation response. The called radio control apparatus 30b refers to the location information of the called terminal 70b that is held in advance and returns a position information report response. The destination exchange 20b returns a subscriber location inquiry response to the destination subscriber information management server 10b based on the received location information report response.

In step S6, the used communication network determination function 54 determines the communication route based on the location state of the called terminal 70b. In particular,
(I) When the called terminal 70b is located in the extension network, the calling radio base station 40a, the calling base station data transfer device 60a, the called base station data transfer device 60b, and the called radio base station 40b Select the extension route and ignore the originating area congestion information.
(Ii) When the called terminal 70b is located in the outside network, the originating radio base station 40a, the originating radio control device 30a, the originating exchange 20a, the GMMS 50, the called exchange 20b, the incoming radio control device 30b, the incoming radio The outside line route of the base station 40b is selected, and the calling process is restricted because the calling area congestion information is congested.

Then, the called subscriber information management server 10b transmits an incoming information read response to the originating exchange 20a (step S7). Here, in the case of (i), the incoming call information read response includes information requesting that the call process is normally performed, and in the case of (ii), the call request process is requested to be restricted. Contains information.
The calling exchange 20a determines whether or not connection is possible based on the incoming call information read response received from the called subscriber information management server 10b (step S8). In the case of (i) above, communication connection is established between the calling terminal 70a and the called terminal 70b via the extension route. In the case of (ii) above, the outgoing call from the calling terminal 70a is disconnected in order to restrict the outgoing call processing.

(flowchart)
Next, with reference to the flowchart shown in FIG. 7, the flow of the outgoing call restriction process performed after the calling exchange 20a receives the outgoing call request from the outgoing call terminal 70a will be described.
Upon receiving a call origination request from the originating terminal 70a, the originating exchange 20a acquires the subscriber profile of the caller managed by the calling subscriber information management server 10a based on the calling number included in the call origination request. Thus, the contract of the calling terminal 70a is determined (step S101). When it is determined by the contract determination that there is no mobile communication service contract with the predetermined mobile communication carrier, the originating exchange 20a determines that the incoming call from the calling terminal 70a to the called terminal 70b is impossible (step S103). ), A disconnection signal is transmitted to the calling terminal 70a (step S104). On the other hand, if it is determined that there is a mobile communication service contract, the originating exchange 20a transmits a callee information acquisition request signal to the called subscriber information management server 10b (step S102).

  When the called party information management server 10b receives the called party information acquisition request signal from the called party information management server 10b, the called party contract determination function 51, based on the called number included in the called party information acquisition request signal, The subscriber profile of the called party is acquired from the subscriber database 1, and the contract contents of the called party are determined (step S105). If it is determined that there is no mobile communication service contract, it is determined that the incoming call is not possible, and a response signal is transmitted to the originating exchange 20a (step S106). The calling exchange 20a transmits a disconnection signal to the calling terminal 50a (step S104).

On the other hand, if it is determined that there is a mobile communication service contract, whether or not there is a caller group contract is determined by determining whether or not the caller information acquisition request signal includes the caller group ID. Is determined (step S107).
If it is determined that there is no group contract for the caller because the group ID is not set in the callee information acquisition request signal, the caller and the callee are determined to be out-of-group communication. The outgoing call restriction control unit 12 determines that the outgoing call processing is not restricted because of out-of-group communication. The called subscriber information management server 10b transmits a response to that effect to the originating exchange 20a (step S110). Upon receiving the response, the originating exchange 20a transmits a connection request signal to the originating terminal 70a (step S111).

On the other hand, if it is determined that there is a group contract of the caller because the caller information acquisition request signal includes the caller group ID, the callee contract determination function 51 stores the caller contract determination function 51 in the subscriber database 1. With reference to the stored subscriber profile of the called party, the presence / absence of a group contract of the called party is determined (step S108).
If the flag indicating the presence or absence of the group contract included in the subscriber profile of the called party indicates nothing, the called party contract determining function 51 determines that there is no group contract for the called party and the communication is outside the group. The outgoing call restriction determination function 55 determines that the outgoing call processing is not restricted, and transmits a response signal to that effect to the outgoing exchange 20a (step S110).

  On the other hand, if it is determined that there is a group contract for the called party, the group ID checking function 52 checks the group ID of the calling party (step S109). As a result of the collation, if it is determined that the group IDs of the calling and called parties do not match, it is determined that the communication is outside the group, and the outgoing call restriction determination function 55 determines that the outgoing call is not restricted, and issues a response signal to that effect. It transmits to the exchange 20a (step S110).

  On the other hand, if the group IDs match, it is determined as intra-group communication and the process proceeds to step S112. In step S112, the area information acquisition unit 4 acquires area information of the called terminal 70b, and determines whether the area is an extension area or an outside area. When it is determined that the extension is within range, the used communication network determination function 54 determines that the communication network used for communication between the calling terminal 70a and the called terminal 70b is the extension network. Since the extension network is a communication network that does not accelerate congestion, the call restriction determination function 55 determines that call restriction is not restricted regardless of the congestion state. The called subscriber information management server 10b returns a response indicating that intra-group communication and extension connection have been selected to the originating exchange 20a (step S119). Upon receiving the response, the originating exchange 20a transmits a connection request signal for requesting intra-group communication and extension connection to the originating terminal 50a and the destination exchange 20b (step S120).

  On the other hand, when it is determined that it is not within the extension area, the congestion state determination function 53 determines the congestion state of the calling area (step S113), and when there is no congestion, the used communication network determination function 54 Selects an external connection. The outgoing call restriction determination function 55 determines that the outgoing call processing is not restricted because congestion has not occurred. Then, the called subscriber information management server 10b returns a response indicating that intra-group communication and external line connection have been selected to the originating exchange 20a (step S115). Upon receiving the response, the originating exchange 20a transmits a connection request signal for requesting intra-group communication and external line connection to the originating terminal 50a and the terminating exchange 20b (step S118).

On the other hand, when it is determined in step S113 that congestion has occurred, the type of outgoing call is determined (step S114). In the case of a normal call, the outgoing call restriction determination function 55 restricts outgoing call processing. The subscriber information management server 10b determines that the communication is not performed, and returns a response indicating that the intra-group communication and the external line connection are selected to the originating exchange 20a (step S115). Upon receiving the response, the originating exchange 20a transmits a connection request signal for requesting intra-group communication and external line connection to the originating terminal 50a and the terminating exchange 20b (step S118).
On the other hand, in the case of a non-priority call, since it corresponds to a restriction target call at the time of occurrence of congestion, the outgoing call restriction determination function 55 determines that the outgoing call processing is restricted, and transmits a disconnection instruction to the originating exchange 20a (step S116). . Upon receiving the disconnect instruction, the originating exchange 20a transmits a disconnect signal to the originating terminal 50a (step S117).

  As described above, the called subscriber information management server 10b determines that congestion has occurred when the extension network is determined as a communication network used for communication between the calling terminal 70a and the called terminal 70b. Since the call processing is not restricted, it is possible to prevent the call processing from being restricted more than necessary when a communication network that does not accelerate congestion is selected depending on the location state of the called terminal 70b. Therefore, restriction of outgoing calls that do not cause congestion can be suppressed, and the number of outgoing calls that can be connected even during congestion increases.

Further, even when an outside network is selected, the type of call originated from the calling terminal 70a is a non-priority call, and the communication between the calling terminal 70a and the called terminal 70b is intra-group communication. Therefore, since the outgoing call processing at the time of congestion is restricted, the outgoing call processing can be restricted only in a limited case, and the number of calls to be disconnected can be reduced.
As described above, when the calling area is congested, the communication processing is not restricted based on the type of call from the calling terminal 70a and the presence / absence of intra-group communication, but the communication network used for communication from the presence state of the called terminal 70b. When the extension network that does not accelerate the congestion state is selected, the number of calls to be disconnected can be reduced by not restricting the calling process.

  In the above-described embodiment, the congestion state of the calling area is determined. However, the congestion state of the arrival area may be determined, or the congestion state of the entire communication network may be determined. . Further, in the above-described embodiment, the function of the call restriction control device according to the present invention has been described as being provided in the subscriber information management server 10, but the function of the call restriction control device is arranged in another device. Alternatively, it may be distributed in a plurality of devices.

DESCRIPTION OF SYMBOLS 1 Subscriber database 2 Control part 3 Subscriber information processing part 4 In-zone information acquisition part 5 Outgoing / incoming control part 10 Subscriber information management server 10a Outgoing subscriber information management server 10b Incoming subscriber information management server 12 Outgoing restriction control part 20 Exchanger 20a Originating exchange 20b Terminating exchange 30 Radio control unit 30a Originating radio control unit 30b Arriving radio control unit 40 Radio base station 40a Originating radio base station 40b Arriving radio base station 50a Originating side terminal 50b Terminating side terminal 51 Recipient contract determination function 52 Group ID verification function 53 Congestion state determination function 54 Used communication network determination function 55 Transmission restriction determination function 60 Inter-base station data transfer apparatus 60a Out-base station data transfer apparatus 60b End-to-base station data transfer apparatus 70 Terminal 70a Outgoing terminal 70b Terminal

Claims (4)

In a mobile communication network including a congestion acceleration network that is a communication network that accelerates congestion and a non-congestion acceleration network that is a communication network that does not accelerate congestion, transmission associated with transmission from the originating terminal according to the occurrence of congestion A transmission restriction control device for controlling processing restriction,
Use communication for determining a communication network to be used for communication between the calling terminal and the called terminal based on the presence state of the called terminal when there is a call from the calling terminal to the called terminal Net judging means;
In the case where the non-congested acceleration network is determined as the communication network to be used by the used communication network determination means, the transmission that determines that the transmission processing is not restricted even if congestion occurs in the mobile communication network A transmission restriction control device comprising: a restriction determination unit. The congestion acceleration network is an external network that passes through a wireless control device and a switch managed by a mobile communication carrier,
The outgoing call restriction control device according to claim 1, wherein the non-congestion acceleration network is an extension network that passes through a data transfer device between base stations installed on a premises. There are normal calls and non-priority calls whose priority is set according to the content of the mobile communication service contract of the calling side terminal in the types of calls sent from the calling side terminal,
When the calling terminal and the called terminal are subscribed to a group contract belonging to the same group, intra-group communication is possible,
The transmission restriction determination means is
The type of call originated from the calling terminal is a non-priority call, the communication between the calling terminal and the called terminal is intra-group communication, and the congestion acceleration is performed by the communication network determination means. 3. The transmission restriction control device according to claim 1, wherein it is determined that the transmission processing is restricted when the congestion occurs only when the network is determined as the communication network to be used. In a mobile communication network including a congestion acceleration network that is a communication network that accelerates congestion and a non-congestion acceleration network that is a communication network that does not accelerate congestion, transmission associated with transmission from the originating terminal according to the occurrence of congestion A transmission restriction determination method executed by a transmission restriction control device that restricts processing,
Use communication for determining a communication network to be used for communication between the calling terminal and the called terminal based on the presence state of the called terminal when there is a call from the calling terminal to the called terminal A net determination step;
When the non-congestion acceleration network is determined as the communication network to be used in the use communication network determination step, transmission that determines that the transmission processing is not restricted even if congestion occurs in the mobile communication network An outgoing call restriction determination method comprising: a restriction determination step.

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