JP2008113073A - Communication controller and communication control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a communication controller capable of surely and immediately detecting that a communication terminal device has returned to a communication zone and causing a transmitted signal to surely reach a transmission destination even if it is applied to a multi-bearer system. <P>SOLUTION: The communication controller controls the communication of a communication terminal device 105 capable of performing communication using a plurality of communication bearers. The communication controller is provided with a communication control section 201 for determining whether or not the communication terminal device 105 exists in a zone in each of communication bearers; an incoming/outgoing corresponding information management section 202 for storing the number of the communication terminal device in each communication bearer of the communication terminal device 105 and the number of the communication terminal device 106 which has been transmitted so that they are correlated when transmission has been performed even if the communication terminal device 105 does not exist in the zone in any communication bearer; and a database 203. Further, when the communication terminal device 105 returns to one of the communication bearers, the communication controller 201 notifies the communication terminal device 106 that the communication terminal device 105 exists in the zone. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a communication control apparatus and a communication control method, and more particularly to a communication control apparatus and a communication control method for controlling a communication terminal apparatus that can communicate using a plurality of communication networks.

  In communication using a communication network, even if a communication terminal device makes a call to another communication terminal device, a communication path may not be set depending on circumstances of the called communication terminal device (incoming communication terminal device). Note that the situation of the incoming communication terminal device in which the communication path cannot be set is that the incoming communication terminal device is outside the communication area that is within the communication range with the calling communication terminal device (outgoing communication terminal device). It is done. Hereinafter, a state in which the incoming communication terminal device is within the communication range of the outgoing communication terminal device is referred to as a location, and a state outside the communication range is referred to as a non-location.

When the incoming communication terminal device is not in the service area, it is conceivable that the outgoing communication terminal device periodically calls the incoming communication terminal device and waits for the incoming communication terminal device to return to the service area to perform communication. According to such a method, communication is possible when the incoming communication terminal apparatus is restored, while requests that cannot be communicated to the communication network are repeated, and a load is applied to the communication network.
For example, Patent Document 1 is cited as a conventional technique for preventing repeated communication requests from being made to a non-incoming incoming communication terminal device. The invention described in Patent Literature 1 acquires, as reservation information, information for identifying an incoming call terminal device from the outgoing communication terminal device serving as the caller when the incoming call communication terminal device serving as the caller is in a state where incoming calls cannot be received. Keep it. Then, when the incoming communication terminal device becomes communicable with the outgoing communication terminal device, it notifies the source communication terminal device that communication has become possible based on the reservation information.

According to Patent Document 1 as described above, when the incoming communication terminal device cannot receive an incoming call, the outgoing communication terminal device does not repeatedly make an incoming call, and when the incoming communication terminal device shifts to a ready state, the incoming communication terminal device and the incoming communication are promptly performed. It is possible to make the terminal device communicable.
JP 2005-86544 A

By the way, the adoption of a multi-bearer method in which a single communication terminal device uses a plurality of different types of communication networks is now being studied. According to the multi-bearer method, a communication terminal apparatus can communicate using a communication network whose conditions such as its location and billing are optimal.
However, the above-described conventional technology does not take into consideration the correspondence to such a multi-bearer system. Therefore, when the above-described invention of Patent Document 1 is applied to the multi-bearer system, the communication terminal apparatus is in a communication range of different types of communication bearers that can communicate, even though the communication terminal apparatus that has been in a non-service area Is incapable of notifying the calling communication terminal device that it is ready to receive a call.
The present invention has been made in view of such points, and even when applied to the multi-bearer method, the return of the communication terminal device to the communication area is reliably and promptly detected, and the transmitted signal is detected. It is an object of the present invention to provide a communication control device and a communication control method for reliably receiving a destination.

  While the incoming communication terminal device does not return to the service area, the outgoing communication terminal device does not repeatedly call the incoming communication terminal device, and the return of the communication terminal device to the communication area is reliably and promptly detected. can do. Moreover, since the originating communication terminal apparatus can be notified of the detected return of the communication terminal apparatus being in the service area, communication can be reliably performed from the originating communication terminal apparatus to the incoming communication terminal apparatus. Therefore, it is possible to improve communication reliability and improve customer service.

In order to solve the above problems, a communication control device according to claim 1 of the present invention is a communication control device that controls communication of a mobile communication terminal device capable of communication using at least two types of communication networks. A location / non-location determining means for determining whether the communication terminal device is in a range where communication is possible within each communication network, a non-existing region in which the communication terminal device does not exist; and When another communication terminal device originates a communication terminal device determined to be non-resident in any of the communication networks by a non-existing area detection unit as an incoming communication terminal device as a destination, the incoming communication terminal device is A transmission / reception communication terminal device information storage means for generating and storing correspondence information for associating information for specifying in each communication network with information for specifying a transmission communication terminal device that is a communication terminal device that has transmitted, Incoming call When the terminal device returns to the service area in any one of the communication networks, based on the arrival / departure correspondence information stored in the arrival / departure communication terminal apparatus information storage means, Return notification means for notifying the return. According to such an invention, it is determined in each communication network whether the communication terminal device is located or not located, and a call is made to the communication terminal device that is not located in any communication network. In this case, the information for specifying the incoming communication terminal device regardless of the communication network and the information for specifying the outgoing communication terminal device can be stored in association with each other. Furthermore, when the incoming communication terminal device returns to the service area, the return communication terminal device can be notified of the return of the service area of the incoming communication terminal device based on the arrival / departure correspondence information.
For this reason, when the incoming communication terminal device does not return to the service area, the outgoing communication terminal device does not repeatedly make incoming calls, and when the incoming communication terminal device returns to one of the communication networks, the outgoing communication terminal Notification is made to the device, and communication between the outgoing communication terminal device and the incoming communication terminal device can be immediately made possible.

  The communication control device according to claim 2 of the present invention is the communication control device according to claim 1, wherein the return notification means accepts a location registration request from an incoming communication terminal device that has returned to the service area and detects the service area return. And notifying the originating communication terminal device. According to such an invention, it is possible to promptly detect the return of the incoming communication terminal device and notify the outgoing communication terminal device.

  The communication control device according to claim 3 of the present invention is the communication control device according to claim 1 or 2, wherein the incoming / outgoing communication terminal device information storage means specifies the incoming communication terminal device regardless of the communication network. And information for specifying an incoming communication terminal device in each of the communication networks are stored as information for specifying the incoming communication terminal device. According to such an invention, the originating communication terminal device identifies the terminating communication terminal device using the information for identifying the terminating communication terminal device regardless of the communication network, and the terminating communication terminal device is assigned to any communication network. A signal can be transmitted to the incoming communication terminal device if it is in the service area.

  According to a fourth aspect of the present invention, there is provided the communication control device according to the third aspect, wherein the incoming / outgoing communication terminal device information storage means uses the information for identifying the incoming communication terminal device regardless of the communication network. 4. The communication control device according to claim 3, wherein one of information for specifying an incoming communication terminal device in each of the communication networks is used. According to such an invention, the number of numbers to be managed by the arrival / departure communication terminal apparatus information storage unit can be reduced, and the load on the management of communication terminal apparatus numbers can be suppressed.

  The communication apparatus according to claim 5 of the present invention is the communication apparatus according to any one of claims 1 to 4, wherein the arrival / departure communication terminal apparatus information storage means is notified by the return notification means to the originating communication terminal apparatus. The information of the outgoing communication terminal device stored in the incoming / outgoing communication terminal device information storage means is erased. According to such an invention, it is possible to delete the record of the originating communication terminal device that has been notified, and to suppress the amount of information stored in the incoming / outgoing communication terminal device information storage means.

  According to a sixth aspect of the present invention, there is provided the communication control device according to any one of the first to fifth aspects, wherein the information for returning to the area of the incoming communication terminal device by the return notification means is provided. Further comprising character conversion means for generating a character message by converting the character information into the character information, wherein the return notification means transmits the character message generated by the character conversion means to another communication terminal previously associated with the originating communication terminal device. Transmission to the apparatus is performed using a communication network different from the communication network. According to such an invention, it is possible to display a message via the Internet or the like that communication with the incoming communication terminal device is possible on a personal computer or the like owned by the user of the outgoing communication terminal device. For this reason, the user can immediately know the return of the incoming communication terminal device while working with another communication device such as a computer while waiting for the return of the incoming communication terminal device.

  The communication control device according to claim 7 of the present invention is the communication control device according to any one of claims 1 to 6, wherein when the return notification means notifies the return to the service area, It further comprises communication path establishment means for establishing a communication path between the outgoing communication terminal apparatus and the incoming communication terminal apparatus based on the arrival / departure correspondence information stored in the communication terminal apparatus information storage means. . According to such an invention, it is possible to quickly establish a communication path between the outgoing communication terminal device and the incoming communication terminal device after the communication terminal device returns to the service area.

  According to an eighth aspect of the present invention, there is provided a communication control device according to the seventh aspect, wherein the communication control device is used for communication between the originating communication terminal device and the incoming communication terminal device of the at least two types of communication networks. Priority information storage means for storing information related to the priority of the communication network, and the incoming communication terminal device is in a communication area of a plurality of communication networks communicable with the outgoing communication terminal device among the communication networks. When returning to the service area, the communication path establishment unit selects a communication network based on priority information stored in the arrival / departure priority information storage unit, and uses the selected communication network to A communication path with the incoming communication terminal device is established. According to such an invention, it is possible to select a communication network according to a preset priority order among a plurality of communication networks. Therefore, it is possible to construct a system that meets the conditions desired by the system administrator.

  The communication control method according to claim 9 of the present invention is a communication control method for controlling communication of a mobile communication terminal device capable of communication using at least two types of communication networks, wherein the communication terminal device includes: In the located area / non-located area determining step for determining whether the area is within the communicable range by each communication network, the non-located area being in the non-existing state, and the located area / non-located area detecting step When another communication terminal device transmits a communication terminal device determined to be out of service in any of the communication networks as an incoming communication terminal device as a destination, the incoming communication terminal device is An incoming / outgoing communication terminal device information storage step for generating and storing correspondence information for associating information for specifying and information for specifying the transmitting communication terminal device that is the transmitting communication terminal device, and an incoming communication terminal When the device returns to the service area in any one of the communication networks, based on the arrival / departure correspondence information stored in the arrival / departure communication terminal apparatus information storing step, And a return notification step of notifying. According to such an invention, while the incoming communication terminal device does not return to the service area, the outgoing communication terminal device does not repeatedly make calls to the incoming communication terminal device, and the incoming communication terminal device is not connected to any of the communication networks. When it is restored, the calling communication terminal apparatus is notified, and communication between the calling communication terminal apparatus and the receiving communication terminal apparatus can be immediately made possible.

Embodiment 1
1. Configuration FIG. 1 is a diagram for explaining a communication terminal control apparatus according to a first embodiment of the present invention. The illustrated communication terminal control apparatus is a communication control apparatus that controls communication of a mobile communication terminal apparatus that can communicate using at least two types of communication networks. Such mobile communication terminal devices 105 and 106 are shown in the figure.
Network A and network B shown in FIG. 1 are different types of communication networks (hereinafter referred to as communication bearers). Examples of different types of communication bearers include a communication network such as a mobile phone communication network and a wireless local area network (LAN).

1.1 Communication Terminal Device The communication mobile terminal device 105 can switch between two types of communication bearers, network A and network B. Information for specifying in network A and information for specifying in network B And have. In the present embodiment, the number of the communication terminal device is used as information for specifying the communication terminal device.
In the present embodiment, information for specifying the communication terminal device 105 regardless of the network A and the network B is attached to the communication terminal device 105 as other information for specifying the communication terminal device 105. This information is also the communication terminal device number of the communication terminal device 105, and is hereinafter referred to as one number.
In this embodiment, for the sake of simplicity of explanation, only the communication terminal device 105 will be described with respect to a configuration that can handle two types of communication bearers. However, the communication terminal device 106 can also handle two types of communication bearers. Needless to say, it may be.

1.2 Communication Terminal Device Control Device The communication terminal device control device of this embodiment includes call control devices 102, 103, and 104 and a location registration management server 101. The call control device 102 is provided in a base station in charge of location registration of a communication terminal device in one area called a cell in the network B. The call control apparatuses 103 and 104 are in charge of the location registration of the communication terminal apparatus existing in each cell of the network A.
That is, the call control apparatuses 102 to 104 always transmit a beacon including information on the current position. The communication terminal devices 105 and 106 receive information on the position included in the beacon emitted by the base station, and transmit the communication terminal device number of itself (hereinafter referred to as the own communication terminal device) to the base station that has transmitted the beacon. The call control apparatuses 102 to 104 transmit the received communication terminal apparatus number to the location registration management server 101.

  The location registration management server 101 refers to a database to be described later, and is in a state where the communication terminal device indicated by the communication terminal device number transmitted by the call control devices 102 to 104 exists within a communication range of the network A and the network B. It is determined whether it is a non-existing area that is in a non-existing state. Such a location registration management server 101 is provided in a regional register or a home register.

1.2-1 Location Registration Management Server FIG. 2 is a diagram for explaining the configuration of the location registration management server 101 in more detail. The location registration management server 101 receives a signal including the communication terminal apparatus number from the call control apparatuses 102 to 104 and performs control for transmitting a signal to the communication terminal apparatuses 105 and 106 via the call control apparatuses 102 to 104. A communication control unit 201 that manages the arrival / departure correspondence information based on a signal received by the communication control unit 201, and a database 203 that stores the arrival / departure correspondence information.

  The communication control unit 201 of the location registration management server 101 determines whether the communication terminal devices 105 and 106 are in or out of the network A and network B. The arrival / departure correspondence information management unit 202 and the database 203 are destinations when other communication terminal devices originate from a communication terminal device determined to be out of service in both the network A and the network B. Incoming / outgoing correspondence information for associating the communication terminal device number for identifying the incoming communication terminal device in the network A and the network B with the communication terminal device of the originating outgoing communication terminal device is generated and stored.

Further, when the incoming communication terminal apparatus returns to the service area in either network A or network B, the communication control unit 201 notifies the outgoing communication terminal apparatus of the return of the service area of the incoming communication terminal apparatus based on the arrival correspondence information. To do.
In the first embodiment, the communication control unit 201 functions as a presence / non-location determination unit and a return notification unit. The arrival / departure correspondence information management unit 202 and the database 203 function as an arrival / departure communication terminal apparatus information storage unit.

FIG. 3 is a diagram illustrating the arrival / departure correspondence information. In the example of FIG. 3, the arrival / departure correspondence information is registered in the database 203 in the form of a table.
Aaa-aaa-aaa described in FIG. 3 is a communication terminal device number of the communication terminal device 106 which is a transmission terminal device. ccc-ccc-ccc is information for specifying the communication terminal device 105 in the network A. ddd-ddd-ddd is information for specifying the communication terminal device 105 in the network B.

  Further, the one number described in FIG. 3 is information for specifying the communication terminal device 105 which is an incoming communication terminal device regardless of the communication bearer. Bbb-bbb-bbb adopted as the one number in the example of FIG. 3 is a number different from any of the communication terminal device numbers for specifying the communication terminal device in the network A and the network B. Such one number is hereinafter also referred to as a multi-bearer number.

In the present embodiment, the communication terminal device numbers ccc-ccc-ccc, ddd-ddd-ddd, and multi-bearer numbers bbb-bbb-bbb are stored as information for specifying the communication terminal device 105.
Thereby, in this embodiment, the other communication terminal device can specify the multi-bearer number and transmit to the communication terminal device 105 regardless of the communication bearer in which the communication terminal device 105 is located. Further, the communication terminal device 105 can receive the transmitted signal if it is located in any of the communication bearers.

In the table of FIG. 3, the presence / absence of the communication terminal device is registered together with the communication terminal device number. The communication control unit 201 determines a network in which the communication terminal devices 105 and 106 exist based on a signal including the communication terminal device number transmitted by the call control devices 102 to 104. The incoming / outgoing correspondence information management unit 202 and the database 203 update the registration of the in-service area and the non-in-service area in each network of the communication terminal apparatus whenever the network in which the communication terminal apparatuses 105 and 106 exist is changed.
The presence / absence of a service area is determined by the communication control unit 201 by referring to the arrival / departure correspondence information table shown in FIG.

2. Operation Next, an operation according to the present embodiment having the above-described configuration will be described. In the following description, it is assumed that the communication terminal device 106 makes a call by designating the communication terminal device 105 as a destination and communicates. In this description, the communication terminal device 106 is an outgoing communication terminal device, and the communication terminal device 105 is an incoming communication terminal device.
Prior to signal communication, the communication terminal apparatus 106 transmits its own communication terminal apparatus number aaa-aaa-aaa to the call control apparatus 104 to request location registration of the own apparatus. The location registration request is notified to the location registration management server 101 via the call control device 104, and the location registration management server 101 confirms that the communication terminal device 106 is in the network A including the call control device 104. sign up.

Similarly, the communication terminal device 105 requests location registration from the location registration management server 101 via the call control device 103 located closest to the own device. The location registration management server 101 registers that the communication terminal device 105 is located in the network A including the call control device 103 that mediates the location registration request of the communication terminal device 105.
In addition, when the communication terminal device 105 moves and the communication bearer is changed, the arrival / departure correspondence information management unit 202 updates the arrival / departure correspondence information in the database 203. The arrival / departure correspondence information is updated, for example, when a communication terminal device that has once registered with one communication bearer requests location registration with another communication bearer. At this time, the location in the previously registered communication bearer is updated to a non-location, and the location in the communication bearer newly requested for location registration is registered.
In addition, for example, when a communication terminal device periodically requests location registration, and a communication terminal device that has been registered as being in the service area has not made a location registration request for a certain period of time or longer, this communication terminal device Update your registration to a non-location.

  FIG. 4 is a time chart for explaining operations of the communication terminal apparatuses 105 and 106, the call control apparatuses 102 to 104, and the location registration management server 101 according to the first embodiment. The communication terminal device 106 makes a call to the call control device 104 (1) and inquires whether the communication terminal device 105 is ready to receive a call. In the present embodiment, when the communication terminal device 106 makes a call to the communication terminal device 105, the multi-bearer number bbb-bbb-bbb or the communication terminal device number ccc-ccc-ccc in the network A is designated.

The call control device 104 notifies the location registration management server 101 that there has been an inquiry (2). In the location registration management server 101, the arrival / departure correspondence information management unit 202 determines whether or not the communication terminal device 105 is located in at least one of the network A and the network B based on the registration data of the database 203 ( 3).
For example, when the communication terminal device 106 makes a call by designating the communication terminal device number ccc-ccc-ccc, the call control device 104 sends the location registration management server 101 of the communication terminal device with the communication terminal device number ccc-ccc-ccc. Inquire about the location and non-location. The communication control unit 201 refers to the database 203 and determines whether or not the communication terminal apparatus 106 is registered as being in either the network A or the network B.

In the case of FIG. 4, the communication terminal device assigned the communication terminal device number ccc-ccc-ccc is registered as being out of service in both the network A and the network B. In such a case, in the process of (3), the arrival / departure correspondence information management unit 202 registers the communication terminal device number aaa-aaa-aaa in the table as the arrival / departure correspondence information.
When the communication terminal device 105 is registered in the arrival / departure correspondence information indicating that the communication terminal device 105 is located only in the network A, the communication control unit 201 transmits to the communication terminal device number ccc-ccc-ccc. When the communication terminal device 105 is registered in the arrival / departure correspondence information that it is located only in the network B, the communication control unit 201 transmits to the communication terminal device number ddd-ddd-ddd.

In addition, when the communication terminal device 105 is registered as being in both the network A and the network B, the communication control unit 201 is set in advance in the network A and the network B according to conditions such as a fee. In accordance with the priority order, the call is transmitted to the communication terminal device number in one of the network A and the network B.
When the communication terminal device 105 returns to the network B (4), the communication terminal device 105 requests location registration to the location registration management server 101 via the call control device 104 (5). The location registration management server 101 receives a location registration request from the incoming communication terminal device 105, detects the return to the service area, and executes the requested location registration (6). By registering the location, it is registered that the communication terminal device 105 has entered the network B.

The communication control unit 201 detects the location of the communication terminal device 105 by registering the location of the communication terminal device 105. Then, with reference to the database 203, it is determined whether or not there is a record of transmission to the communication terminal device 105 that has been in the area (7).
In the first embodiment, the communication terminal device number aaa-aaa-aaa is recorded as the communication terminal device that has transmitted to the communication terminal device 105. Therefore, the communication control unit 201 notifies the call control device 104 that the transmission to the communication terminal device 105 is possible (8).

  Upon receiving the notification from the communication control unit 201, the call control device 104 notifies the communication terminal device 106 having the communication terminal device number aaa-aaa-aaa that transmission to the communication terminal device 105 is possible (9). Further, after notifying the communication terminal device 106, the call control device 104 requests the location registration management server 101 to delete aaa-aaa-aaa which is the communication terminal device number of the calling communication terminal device (10). The arrival / departure correspondence information management unit 202 deletes the communication terminal device number, aaa-aaa-aaa, stored in the database 203.

  FIG. 5 is a flowchart for explaining overall processing executed by the location registration management server 101 according to the first embodiment. The location registration management server 101 receives a signal including a communication terminal device number from the calling communication terminal device via the call control devices 102 to 104. The communication control unit 201 determines that there is a transmission by receiving a signal (S501). If no call is made (S501: No), the communication control unit 201 stands by until a call is made.

  Next, the communication control unit 201 identifies the outgoing communication terminal device and the incoming communication terminal device from the communication terminal device number included in the signal. The arrival / departure correspondence information management unit 202 refers to the database 203 and determines whether or not the incoming communication terminal device is located in the network A (S502). If the incoming communication terminal device is located in the network A (S502: Yes), the incoming communication terminal device number in the network A is transmitted (S509).

  If the incoming communication terminal device is not located in the network A (S502: No), the arrival / departure correspondence information management unit 202 refers to the database 203 to determine whether the incoming communication terminal device is located in the network B. It is judged (S503). If the incoming communication terminal device is located in the network B (S503: Yes), the incoming communication terminal device number in the network B is transmitted (S508).

Note that the reason why the area where the incoming communication terminal device is located is determined in the order of the network A and the network B as in the first embodiment is that the network A is set to be used in preference to the network B in advance. . The priority order is determined in advance by the difference in communication charges between the network A and the network B.
When the incoming communication terminal device is not located in either the network A or the network B (S503: No), the arrival / departure correspondence information management unit 202 registers the communication terminal device number of the outgoing communication terminal device in the database 203 ( S504). Then, it is determined from the location registration request of the communication terminal device whether the incoming communication terminal device that is not located in either network A or network B has returned to either network A or network B (S505). As a result, when the incoming communication terminal device does not return to any network (S505: No), the communication control unit 201 waits until the incoming communication terminal device returns.

  Further, when the incoming communication terminal device requests location registration to the call control device of any network, the communication control unit 201 determines that the incoming communication terminal device has returned to the location via this call control device (S505: Yes). Then, the originating communication terminal device is identified with reference to the arrival / departure correspondence information in the database 203, and the return of the terminating communication terminal device is notified to the originating communication terminal device (S506). For this notification, a normal mail or a short mail can be used.

In response to a request from the call control device, the arrival / departure correspondence information management unit 202 deletes the record of the calling communication terminal device that has received the notification of the return of the called communication terminal device (S507).
In the flowcharts described above, steps S502 and S503 correspond to the in-range / non-in-range determination step. Step S504 corresponds to the arrival / departure communication terminal device information storage step, and steps S505 and S506 correspond to the return notification step.

According to the first embodiment described above, when a call is made to a communication terminal device that is not located in any communication bearer, the communication terminal device number of the incoming communication terminal device and the communication terminal device number of the outgoing communication terminal device. Can be stored in association with each other. Furthermore, when the incoming communication terminal device returns to the service area, the return communication terminal device can be notified of the return of the service area of the incoming communication terminal device based on the stored communication terminal device number.
For this reason, while the incoming communication terminal device has not returned to the service area, the outgoing communication terminal device does not repeatedly make incoming calls, and when the incoming communication terminal device returns to one of the communication bearers, the outgoing communication terminal The device can be notified.

  In addition, Embodiment 1 described above is not limited to the structure which operate | moves in this way. For example, in the operation described above, the communication terminal device 105 that has returned to the location in the operation (5) requests the location registration management server 101 for location registration. However, in this operation, a signal requesting location registration may be periodically transmitted from the location registration management server 101, and the restored communication terminal device may receive the request and perform location registration.

In the first embodiment described above, a multi-bearer number different from both the communication terminal device number in the network A and the communication terminal device number in the network B of the communication terminal device 105 is used as the one number.
However, Embodiment 1 is not limited to such a configuration, and one of the communication terminal device numbers for specifying the communication terminal device in any communication network may be used as the one number. Such one number is referred to as a representative number in the first embodiment.

  FIG. 6 is a diagram for explaining the multi-bearer number and the representative number. As shown in FIG. 6 (1), the multi-bearer number bbb-bbb-bbb of the communication terminal device 105 is the communication terminal device number ccc-ccc-ccc in the network A of the communication terminal device 105, and the communication terminal device number in the network B. It is different from any of ddd-ddd-ddd. The calling communication terminal device specifies the communication terminal device 105 to be the called communication terminal device by the multi-bearer number, and sends it. The communication terminal device 105 can receive a signal that is specified by a multi-bearer number and transmitted from either the network A or the network B.

Also, as shown in FIG. 6B, the representative number bbb-bbb-bbb of the communication terminal device 105 is the same as the communication terminal device number in the network A of the communication terminal device 105. The outgoing communication terminal device specifies the outgoing communication terminal device 105 as the incoming call communication terminal device based on the representative number, and sends it. The communication terminal device 105 can receive a signal that is specified and transmitted by the representative number in the network A as well as in the network A.
The representative number method using a representative number for one number requires fewer numbers for a communication terminal device than the multi bearer number method using a multi bearer number. Also, the communication terminal device numbers that need to be stored in the database 203 can be reduced, and the data capacity required to store the arrival / departure correspondence information can be suppressed.

Embodiment 2
Next, a communication control apparatus according to Embodiment 2 of the present invention will be described. FIG. 7 is a diagram for explaining the communication control apparatus according to the second embodiment. The configuration shown in FIG. 7 includes the same configuration as the configuration shown in FIG. 1, and the same configuration as the configuration described in FIG. To do.
The communication control apparatus according to the second embodiment of the present invention includes a conversion server 701 that converts information for a return to service notification of the communication control unit 201 into character information to generate a character message. The communication control unit 201 transmits the character message generated by the conversion server 701 to another communication terminal device such as a PC (Personal Computer) 108 previously associated with the originating communication terminal device, which is different from the network A and the network B. 107 is used for transmission. In such a configuration, the conversion server 701 functions as character conversion means of the second embodiment.

The conversion server 701 receives return notification information from the location registration management server 101. In the second embodiment, mail, instant message (IM), and presence functions are provided to the conversion server 701, and an address book that records the address of the PC 108, the communication terminal device number, and the user corresponding to the communication terminal device number is provided. Keep it.
For this reason, in Embodiment 2, the return of the incoming communication terminal device can be converted into a text message such as mail. In this conversion, the user name of the incoming communication terminal device can be identified from the communication terminal device number of the incoming communication terminal device, and a message such as “communicating with Mr. XXX” can be created.

FIG. 8 is a time chart for explaining operations of the communication terminal devices 105 and 106 and the call control devices 102 to 104, the location registration management server 101, the conversion server 107, and the PC 108 according to the second embodiment.
As in the first embodiment, the communication terminal device 106 makes a call to the call control device 104 (1) and inquires whether or not the communication terminal device 105 is ready to receive a call. The call control device 104 notifies the location registration management server 101 that there has been an inquiry (2). In the location registration management server 101, the arrival / departure correspondence information management unit 202 determines whether or not the communication terminal device 105 is located in at least one of the network A and the network B based on the registration data in the database 203. (3).

When the communication terminal device 1005 is registered to be out of service in both the network A and the network B, the arrival / departure correspondence information management unit 202 uses the communication terminal device number of the communication terminal device 106 as a table for arrival / departure correspondence information. Register with.
When the communication terminal device 105 returns to the network B (4), the communication terminal device 105 requests location registration from the location registration management server 101 via the call control device 104 (5). The location registration management server 101 receives a location registration request from the incoming communication terminal device 105, detects the return to the service area, and executes the requested location registration (6). By registering the location, it is registered that the communication terminal device 105 has entered the network B.

The communication control unit 201 detects the location of the communication terminal device 105 based on the location registration of the communication terminal device 105. Then, with reference to the database 203, it is determined whether or not there is a record of transmission to the communication terminal device 105 that has been in the area (7). Further, the call control device 104 is notified that the communication terminal device 105 is ready for transmission.
At this time, in the second embodiment, information indicating that the transmission to the communication terminal apparatus 105 is possible is transmitted to the call control apparatus 104 via the conversion server 107 (8). The conversion server 107 notifies the communication terminal device 106 that transmission to the communication terminal device 105 is possible via the call control device 104 (10) (11).

Also, conversion server 107 receives this information and searches the address book for the communication terminal number of the originating communication terminal included in the information. Then, a message including the name registered corresponding to the communication terminal device is created and transmitted to the address of the PC 108 by the mail function or the like (12).
Further, after notifying the communication terminal device 106 and the PC 108, the conversion server 107 requests the location registration management server 101 to delete the communication terminal device number of the calling communication terminal device (13). The incoming / outgoing correspondence information management unit 202 deletes the communication terminal device number of the outgoing communication terminal device stored in the database 203.
According to the second embodiment, the user of the outgoing communication terminal apparatus can immediately know the return of the incoming communication terminal apparatus while working using the computer while waiting for the return of the incoming communication terminal apparatus. For this reason, Embodiment 2 is effective in improving the serviceability for the user.

Embodiment 3
Next, a third embodiment of the present invention will be described. Note that the communication control apparatus according to the third embodiment has the same configuration as that of the first embodiment shown in FIGS. 1 and 2, and therefore a part of the illustration and description of the apparatus configuration is omitted. In the third embodiment, the communication control unit 201 of the location registration management server 101 uses the arrival / departure correspondence information stored in the database 203 when the communication terminal device 105 that is the incoming communication terminal device returns to the network B. Thus, a communication path is established between the communication terminal device 106 and the communication terminal device 105, which are transmission communication terminal devices.

  FIG. 9 is a time chart for explaining operations of the communication terminal devices 105 and 106, the call control devices 102 to 104, and the location registration management server 101 of the third embodiment. As described with reference to FIG. 4, the communication terminal device 106 sends a call to the call control device 104 (1) and inquires whether the communication terminal device 105 is ready to receive a call. The call control device 104 notifies the location registration management server 101 that there has been an inquiry (2). In the location registration management server 101, the arrival / departure correspondence information management unit 202 determines whether or not the communication terminal device 105 is located in at least one of the network A and the network B based on the registration data of the database 203 ( 3).

  For example, when the communication terminal device 106 makes a call by designating the communication terminal device number ccc-ccc-ccc, the call control device 104 sends the location registration management server 101 of the communication terminal device with the communication terminal device number ccc-ccc-ccc. Inquire about the location and non-location. The communication control unit 201 refers to the database 203 and determines whether or not the communication terminal apparatus 106 is registered as being in either the network A or the network B.

  In the case of the third embodiment, the communication terminal device assigned the communication terminal device number ccc-ccc-ccc is registered as being out of service in both the network A and the network B. In such a case, in the process of (3), the arrival / departure correspondence information management unit 202 registers the communication terminal device number aaa-aaa-aaa in the table as the arrival / departure correspondence information.

  When the communication terminal device 105 is registered in the arrival / departure correspondence information indicating that the communication terminal device 105 is located only in the network A, the communication control unit 201 transmits to the communication terminal device number ccc-ccc-ccc. When the communication terminal device 105 is registered in the arrival / departure correspondence information that it is located only in the network B, the communication control unit 201 transmits to the communication terminal device number ddd-ddd-ddd.

In addition, when the communication terminal device 105 is registered as being in both the network A and the network B, the communication control unit 201 is set in advance in the network A and the network B according to conditions such as a fee. In accordance with the priority order, the call is transmitted to the communication terminal device number in one of the network A and the network B.
When the communication terminal device 105 returns to the network B (4), the communication terminal device 105 requests location registration to the location registration management server 101 via the call control device 104 (5). The location registration management server 101 receives a location registration request from the incoming communication terminal device 105, detects the return to the service area, and executes the requested location registration (6). By registering the location, it is registered that the communication terminal device 105 has entered the network B.

  Next, in the third embodiment, the communication control unit 201 detects the presence / absence of the history of the calling communication terminal device (S901). In the third embodiment, as shown in FIG. 3, there is a history of the calling terminal number aaa-aaa-aaa (S901: Yes). Subsequently, the communication control unit 201 determines whether or not the outgoing communication terminal device 106 is in a state where it cannot receive an incoming call due to a reason such as a call (S902). If the communication terminal device 106 is capable of receiving a call (S902: Yes), it is determined whether the communication terminal device 106 is within a communication area in which communication with the communication terminal device 105 is possible or a call is possible (S903). .

Note that in any of the above steps S901 to S903, the communication control unit 201 interrupts the process when it is determined NO. And the process of step S901-step S903 is repeated until time-up of time-measurement time, measuring predetermined time.
In step S903, if the communication terminal device 106 can communicate with the communication terminal device 105 (S903: Yes), the location registration management server 101 makes an incoming call request to the call control device 102 and the call control device 104 (10). (11). The call control apparatus 102 requested to receive an incoming call transmits the incoming call request to the communication terminal apparatus 106 serving as the calling communication terminal apparatus (12). Further, the call control device 104 transmits an incoming call request to the communication terminal device 105 serving as the incoming communication terminal device (13). The communication terminal device 105 and the communication terminal device 106 each return an incoming call response to the location registration management server 101 (14), (15).

The location registration management server 101 receives the incoming response from the communication terminal device 106, and executes processing for switching the communication between the communication terminal devices 105 and 106 from the network A to the network A and the network B (16) and (17). . Since this process requires a predetermined time, guidance information may be provided to the user during this time to hold the call.
After the above processing, a communication path is established between the call control apparatus 104 and the call control apparatus 102, and a communication path is also established between the communication terminal apparatus 105 and the communication terminal apparatus 106. The call control device 102 and the call control device 104 transmit a communication path switching response to the location registration management server 101 to notify the establishment of the communication path (18), (19).

By the way, some communication areas of wireless communication can communicate in a plurality of networks. In the third embodiment, the database 203 shown in FIG. 2 stores information related to the priority of the network used for communication between the communication terminal device 106 and the communication terminal device 105 (referred to as priority information). To do.
In the third embodiment, when the communication terminal apparatus 105 returns to the communication area of a plurality of networks that can communicate with the communication terminal apparatus 106 when establishing the communication path described above, the priority information stored in the database 203 is stored. A network is selected based on the above, and a communication path between the communication terminal device 106 and the communication terminal device 105 is established using the selected network.

  FIG. 10 is a diagram illustrating a state in which the communication terminal device 105 has returned to a communication area in which communication can be performed in either the network A or the network B. FIG. 11 is a diagram illustrating priority information stored in the database 203. In the illustrated example, network A is designated as the priority network. Therefore, in the third embodiment, the location registration management server 101 makes an incoming call request to the call control device 103 that controls the communication terminal device 105 by the network A and establishes a communication path.

The network priority can be set based on the cost of communication. Alternatively, it can be set based on the stability of communication and the radio wave condition. According to the third embodiment, it is possible to preferentially use a network having a lower communication cost and reduce the communication cost of the user. In addition, it is possible to preferentially use a network having a better communication radio wave condition and improve communication reliability.
Further, when setting the priority according to the communication state, it is conceivable to observe the communication state in real time and dynamically change the priority based on this result.

  The present invention is applied to a communication control apparatus and a control method for controlling a communication terminal apparatus that is portable and can communicate with different communication bearers. In particular, when the communication terminal device moves and moves out of the communication range of a plurality of communication bearers, the communication terminal device returns to one of the communication bearers even if the calling communication terminal device does not repeatedly call. It is suitable for systems that need to be able to quickly detect and reliably communicate.

It is a figure for demonstrating the communication terminal control apparatus of Embodiment 1 of this invention. It is a figure for demonstrating in detail the structure of the location registration management server shown in FIG. It is the figure which illustrated the arrival / departure correspondence information registered in the form of a table in the database shown in FIG. 3 is a time chart for explaining the operation of the system including the communication terminal device according to the first embodiment. 4 is a flowchart for explaining overall processing executed by a location registration management server according to the first embodiment. It is a figure for demonstrating the multi bearer number employ | adopted as one number in Embodiment 1, and the representative number contrasted with a multi bearer number. It is a figure for demonstrating the communication terminal control apparatus of Embodiment 2 of this invention. 6 is a time chart for explaining the operation of a system including a communication terminal device according to a second embodiment. 10 is a time chart for explaining the operation of a system including a communication terminal device according to a third embodiment. It is a figure for demonstrating the communication terminal control apparatus of Embodiment 3 of this invention. It is the figure which illustrated the priority information preserve | saved in the communication terminal control apparatus of Embodiment 3 of this invention.

Explanation of symbols

101 location registration management server 102, 103, 104 call control device 105, 106 communication terminal device 108 PC
201 Communication Control Unit 202 Arrival / Departure Correspondence Information Management Unit 203 Database 701 Conversion Server

Claims (9)

A communication control device for controlling communication of a mobile communication terminal device capable of communication using at least two types of communication networks,
A location / non-location determination means for determining whether the communication terminal device is in a state where the communication terminal device is in a communicable range by each communication network, a non-existing state where the communication terminal device does not exist,
When another communication terminal apparatus originates a communication terminal apparatus determined to be non-existing in any of the communication networks by the presence / non-existence detection means as an incoming communication terminal apparatus that is a destination, Incoming / outgoing communication terminal device information for generating and storing incoming / outgoing correspondence information for associating information for specifying the communication terminal device in each communication network and information for specifying the outgoing communication terminal device that is the outgoing communication terminal device Storage means;
When the incoming communication terminal device returns to the service area in any of the communication networks, the outgoing communication terminal device is connected to the outgoing communication terminal device based on the incoming / outgoing correspondence information stored in the outgoing / incoming communication terminal device information storage means. A return notification means for notifying return to the service area;
A communication control apparatus comprising:   2. The communication control according to claim 1, wherein the return notification unit receives a location registration request from the incoming communication terminal device, detects a return of the location of the incoming communication terminal device, and notifies the outgoing communication terminal device. apparatus.   The incoming / outgoing communication terminal device information storage means includes information for specifying an incoming communication terminal device regardless of the communication network and information for specifying an incoming communication terminal device in each of the communication networks. The communication control device according to claim 1, wherein the communication control device is stored as information for specifying the information.   The incoming / outgoing communication terminal device information storage means adds one of the information for specifying the incoming communication terminal device in each of the communication networks to the information for specifying the incoming communication terminal device regardless of the communication network. The communication control device according to claim 3, wherein the communication control device is used.   The outgoing / incoming communication terminal device information storage means deletes the outgoing communication terminal device information stored in the incoming / outgoing communication terminal device information storage means after the return notification means notifies the outgoing communication terminal device. The communication control apparatus according to any one of claims 1 to 4. Further comprising character conversion means for converting the information for notification of return to the area of the incoming communication terminal device by the return notification means into character information to generate a character message;
The return notification means transmits the character message generated by the character conversion means to another communication terminal apparatus previously associated with the originating communication terminal apparatus using a communication network different from the communication network. The communication control device according to any one of claims 1 to 5.   When the incoming communication terminal device returns to the service area, a communication path between the outgoing communication terminal device and the incoming communication terminal device is established based on the incoming / outgoing correspondence information stored in the incoming / outgoing communication terminal device information storage means. The communication control apparatus according to claim 1, further comprising a communication path establishment unit. Of the at least two types of communication networks, further comprising priority information storage means for storing priority information related to the priority of the communication network used for communication between the originating communication terminal device and the incoming communication terminal device,
When the incoming communication terminal apparatus returns to the service area of a plurality of communication networks communicable with the originating communication terminal apparatus in the communication network, the communication path establishment means stores in the arrival / departure priority information storage means 8. The communication network according to claim 7, wherein a communication network is selected based on the prioritized priority information, and a communication path is established between the outgoing communication terminal device and the incoming communication terminal device using the selected communication network. The communication control device described. A communication control method for controlling communication of a mobile communication terminal capable of communicating using at least two types of communication networks,
A location / non-location determination step for determining whether the communication terminal device is in a state where the communication terminal device is in a communicable range by each communication network, or a non-existing state where the communication terminal device does not exist;
When other communication terminal device originates the communication terminal device determined to be non-resident in any of the communication networks as an incoming communication terminal device to be a destination in the presence / non-location detection step, Incoming / outgoing communication terminal apparatus for generating and storing incoming / outgoing correspondence information for associating information for specifying an incoming communication terminal apparatus in each of the communication networks and information for specifying an outgoing communication terminal apparatus that is an outgoing communication terminal apparatus An information storage step;
When the incoming communication terminal device returns to the service area in any one of the communication networks, the presence of the incoming communication terminal device in the outgoing communication terminal device is determined based on the incoming / outgoing correspondence information stored in the outgoing / incoming communication terminal device information storage step. A return notification step for notifying the return of the service area;
The communication control method characterized by including.

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