JPH10200947A - In-coming call connection method between communication networks - Google Patents

Abstract

PROBLEM TO BE SOLVED: To omit a position procedure between networks and to simplify an incoming call procedure between the networks by preliminarily deciding an order of incoming calls of communication networks as sharing subscriber information, roaming information and routing information of a mobile ratio station. SOLUTION: When an incoming call is requested to a radio mobile station 3 by a mobile station identification number α from an originating terminal 13 after the radio mobile station 3 moves to a radio zone of a mobile communication network B, the incoming call is requested to an exchanging device 6 of a mobile communication network A4 to which the incoming call is received prior to others by way of communication channel 16 by an origination communication network 14. The subscriber information including the roaming information, position information of the mobile station identification number α are obtained from a database 8 and the incoming call is requested to a ratio control communication device 10 in which the position of the mobile station identification number α is registered by the exchanging device 6. When no response is confirmed after specified time is passed, the exchanging device 6 retrieves whether or not other communicable mobile communication networks exist from the roaming information, obtains a connection number X of an exchanging device 7 of a mobile communication network B5 and requests the in-coming call to the exchanging device 7 by the connection number X and the mobile station identification number α.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication terminal (for example, a dual terminal) capable of communicating with a plurality of communication networks and simultaneously waiting for the plurality of communication networks, and receiving incoming calls sequentially over the plurality of communication networks. More particularly, the present invention relates to a method for connecting incoming calls between communication networks, which is effective when the communication terminal is a wireless mobile terminal.

[0002]

2. Description of the Related Art The prior art will be described below in the case where a communication terminal is a wireless mobile terminal and a communication network is a mobile communication network.

FIG. 1 shows a conventional location registration routing. In the figure, 3 is a wireless mobile station, 4 is a mobile communication network A with which the wireless mobile station 3 can communicate, 5 is a mobile communication network B with which the wireless mobile station 3 can communicate, and 1 is a mobile communication network A (4). A specific radio zone, 2 is a specific radio zone of the mobile communication network B (5), 10 is a specific radio control communication device for performing radio control with the radio mobile station 3 in the mobile communication network A, and 6 is a mobile communication network A , An exchange device for controlling communication exchange with the radio control communication device 10 and other networks, 8 a database for managing subscriber information and location information of the mobile communication network A, 11 a mobile communication network B 7 is a specific radio control communication device for performing radio control, 7 is a switching device that controls communication exchange with the radio control communication device 11 and other networks in the mobile communication network B, and 9 is subscriber information of the mobile communication network B.
A database 12 for managing position information and the like indicates a communication line connecting the mobile communication network A and the mobile communication network B.

The radio mobile station 3 is capable of communicating with both the mobile communication network A (4) and the mobile communication network B (5), and has a mobile station identification number α of the mobile communication network A and a mobile station of the mobile communication network B. Having both identification numbers β, it can make and receive calls on the mobile communication network A, can make and receive calls on the mobile communication network B, and simultaneously listen for incoming calls from the mobile communication network A and incoming calls from the mobile communication network B. Has a function that can be. Such a function of the radio mobile station is known as, for example, a function of a dual terminal. The mobile station identification number α and the mobile station identification number β are publicly available numbers.

[0005] In such a configuration, when a call is received to the radio mobile station 3 that has subscribed to each of a plurality of mobile communication networks and moves through these mobile communication networks, the originator of the radio mobile station 3 is currently located. It is necessary to estimate the mobile communication network in service and use the number assigned to the wireless mobile station 3 in the estimated mobile communication network. For this reason, not only does the caller need time for estimation, but if the estimation is wrong, a call is lost and the receiving efficiency is reduced.

[0006] The priorities of the mobile communication networks when arriving at the radio mobile station are determined in advance, and the caller dials the mobile station identification number of the priority mobile communication network, and performs location registration and reception procedures between the mobile communication networks. The above-mentioned problem can be solved if the configuration is adopted. Hereinafter, a conventional procedure for registering a location and terminating a call between mobile communication networks configured as described above will be described.

FIG. 2 shows an example of a conventional location registration procedure. In this example, when a call arrives at the wireless mobile station 3, the mobile communication network A (4) is set as the priority mobile communication network, and the mobile station identification number α is known to the caller.

The subscriber information of the mobile station identification number α of the radio mobile station 3 stored in the database 8 is
Are routing information including roaming information capable of communicating with the mobile communication network B (5) and a connection number X with the switching device 7 of the mobile communication network B. The subscriber information of the mobile station identification number β of the wireless mobile station 3 stored in the database 9 is as follows:
This information includes roaming information that enables the wireless mobile station 3 to communicate with the mobile communication network A. The position information of the mobile station identification number α stored in the database 8 is either the position number of the radio control communication device in the mobile communication network A or the mobile station identification number in the roaming contracted network. The position information of the mobile station identification number β stored in the database 9 is:
This is the position number of the wireless control communication device in the mobile communication network B.

As shown in FIG. 2, when the radio mobile station 3 comes under the radio zone 1 of the mobile communication network A, the radio mobile station 3 first sends the mobile station identification number α to the radio control communication device 10. (Step S1).

Accordingly, the radio control communication device 10 issues a location registration request including the mobile station identification number α to the switching device 6 (step S2). A position registration request including the position number LI-a of the communication device 10 is made (step S
3).

The database 8 updates the position information of the mobile station identification number α to the position number LI-a of the radio control communication device 10 (step S4), and notifies the exchange device that the position information has been updated normally when the position registration is completed. 6 and wireless control communication device 10
It notifies the wireless mobile station 3 via (step S5). At this time, the position information LI-a is assigned by the wireless control communication device 1.
It may be performed at 0.

When the wireless mobile station 3 moves and enters the area under the wireless zone 2 of the mobile communication network B, the wireless mobile station 3 issues a position registration request including the mobile station identification number β to the wireless control communication device 11 ( Step S6).

Thus, the radio control communication device 11 issues a location registration request including the mobile station identification number β to the switching device 7 (step S7), and the switching device 7 stores the mobile station identification number β and the radio control communication device in the database 9. 11 position number LI-
b) (step S8).

The database 9 updates the location information of the mobile station identification number β to LI-b (step S9), and notifies the normal update of the location information via the switching device 7 and the radio control communication device 11 upon completion of the location registration. Is notified to the wireless mobile station 3 (step S10).

Next, the switching device 7 recognizes from the subscriber information in the database 9 that the wireless mobile station 3 is a roaming subscriber to the mobile communication network A, and also notifies the mobile communication network A of the mobile station identification number β. And a connection registration request including the connection number X to the switching device 7 of the mobile communication network A (step S2).
1).

The switching device 6 of the mobile communication network A requests the database 8 for a location registration including the mobile station identification number β (step S22).

The database 8 recognizes that the mobile station identification number β is the number of the mobile station identification number α in the mobile communication network B, and updates the position information of the mobile station identification number α to the mobile station identification number β ( Step S23), the switching device 7 is notified via the switching device 6 that the location information has been normally updated upon completion of the location registration (step S24). Such a location registration change procedure from the mobile communication network B to the mobile communication network A (steps S21 to S24) is an inter-network location registration procedure.

FIG. 3 shows a conventional incoming call routing between communication networks. FIG. 2 shows the following elements in addition to the components shown in FIG. That is, in FIG. 3, reference numeral 13 denotes a calling terminal that communicates with the wireless mobile station, and 14 denotes a calling terminal 13.
, A transmission line connecting the transmission communication network 14 and the transmission terminal 13, 16 a communication line connecting the mobile communication network A (4) and the transmission communication network 14, 17.
Indicates communication lines connecting the mobile communication network B (5) and the calling communication network 14, respectively.

FIG. 4 shows an example of a conventional procedure for terminating communication between communication networks. The radio mobile station 3 is in the radio zone 2 of the mobile communication network B
, The location registration is performed according to the procedure of FIG. Thereafter, when there is an incoming call request from the originating terminal 13 to the mobile station 3 with the mobile station identification number α, the incoming call request is transmitted via the communication line 15, the outgoing communication network 14, and the communication line 16 to the switching device of the mobile communication network A. 6 (step S
31).

The switching device 6 of the mobile communication network A requests the subscriber information and the location information of the mobile station identification number α from the database 8 (step S32). It is acquired (step S33). The switching device 6 recognizes that the mobile station must be connected to the mobile communication network B because the location information is the mobile station identification number β, and determines the mobile station identification number β and the connection number X to the switching device 7. Requests the switching device 7 of the mobile communication network B to receive a call (step S34). At this time, the mobile communication network A
From the mobile communication network B directly via the communication line 12 or from the communication lines 16 and 17 via the outgoing communication network 14.

When the switching device 7 of the mobile communication network B receives the incoming call request including the mobile station identification number β, it requests the database 9 for the location information of the mobile station identification number β (step S3).
5) After obtaining the location information of the mobile station identification number β from the database 9 (step S36), make an incoming call request with the mobile station identification number β to the radio control communication device 11 corresponding to the location number LI-b. (Step S37). This allows
The wireless control communication device 11 makes an incoming call request with the mobile station identification number β to the wireless mobile station 3 (step S38), and when the wireless mobile station 3 responds (step S39), shifts to communication.

It is assumed that a network that receives calls preferentially is a mobile communication network B,
The same procedure is performed when a call is received between mobile communication networks with the mobile station identification number β as a priority number.

[0023]

In the above-mentioned prior art, when a plurality of mobile station identification numbers are assigned to one radio mobile station, a known mobile communication network for managing the mobile station identification numbers is used. A mobile communication network that is preferentially connected, and each time a wireless mobile station moves to another mobile communication network, the location registration must be changed for the preferentially connected mobile communication network according to an inter-network location registration procedure, It was very complicated.

An object of the present invention is to omit the inter-network location registration procedure when an incoming call is made over a plurality of mobile communication networks, so that such an inter-network incoming call procedure is greatly simplified. An object of the present invention is to provide an incoming connection method between communication networks.

[0025]

According to the method of the present invention, a location registration is performed in a database in each communication network according to a conventional location registration procedure, but an inter-network location registration is not performed. That is, subscriber information, roaming information, and routing information of a wireless mobile station are shared between mobile communication networks, and incoming calls are sequentially received from a priority communication network by determining the order of arrival of the communication networks in advance.

In this case, a terminal identification number is assigned to a communication terminal in each communication network, a terminal identification number commonly used between communication networks is assigned, or a communication terminal is commonly used between communication networks. A terminal identification number peculiar to each communication network is assigned to the terminal identification number. The location registration procedure may be performed by setting a communication path between the communication terminal and the communication network, or may be performed without setting the communication path.

According to the above-described configuration of the present invention, each time a communication terminal moves between a plurality of communication networks, the inter-network position registration procedure is not performed, and the position information of the plurality of communication networks is managed in a unified manner. Without having to do so, the caller can reliably receive a call with one terminal identification number without having to be aware of which communication network the communication terminal is located in.

More specifically, according to the present invention, the communication system includes a plurality of communication networks and a communication terminal having a function of communicating with the plurality of communication networks, and subscriber information of the communication terminals is stored in each communication network. A communication network in a communication system in which the communication terminal requests each communication network to independently register the location of an incoming connection destination, and each communication network registers the incoming connection destination in its own database. In the inter-call connection method, the communication terminal is provided with a terminal identification number that is commonly used in each communication network, and is ready to receive a call with the terminal identification number in a destination communication network. At some time, the terminal identification number and routing information to all communication networks to which the communication terminal may move are stored in a database of a communication network contracted with the communication terminal, and the communication terminal When there is an incoming request Once connecting to the contracted communication network, making an incoming call request to the communication terminal by referring to location information in the own communication network from the database of the contracted communication network, and receiving no response from the communication terminal for a certain period of time. In this case, there is provided an inter-communication-network terminating connection method for making a call request to a communication network having the next terminating order based on routing information to all communication networks to which the communication terminal may move.

The communication network of the next incoming rank requested for incoming call is:
Making an incoming request to the communication terminal with reference to the position information of the database of the own communication network based on the terminal identification number used in common, if there is a response from the communication terminal, transition to during communication, If there is no response for a certain period of time, it is preferable to notify the contracted communication network again of no response.

According to the present invention, the communication system further includes a plurality of communication networks and communication terminals having a function of communicating with the plurality of communication networks, and subscriber information of the communication terminals is stored in a database for each communication network. The communication terminal independently requests each communication network for location registration of an incoming connection destination, and each communication network registers the incoming connection destination in its own database. The method, wherein the communication terminal is provided with a terminal identification number used independently in each communication network, and when all the terminal identification numbers are in a state in which it is possible to wait for an incoming call, a contract is made with the communication terminal. The terminal identification number used in the communication network and the routing information to all communication networks to which the communication terminal may move are stored in the contracted communication network database, and the There was an incoming request Makes a call request to the communication terminal by referring to the position information in the own communication network from the database of the contracted communication network once connected to the contracted communication network, and makes a response from the communication terminal for a predetermined time. If not, the communication terminal goes to the communication network of the next incoming order based on the routing information to all communication networks to which the communication terminal may move and the terminal identification number used independently in each communication network. There is provided an inter-communication-network terminating connection method for requesting an incoming call with a terminal identification number used independently.

The communication network of the next incoming rank requested for incoming call is as follows:
Makes an incoming call request to the communication terminal by referring to the position information of the database of the own communication network based on the terminal identification number used independently in the communication network, and if there is a response from the communication terminal, during communication, If there is no response for a certain period of time,
It is preferable that a non-response is notified to the contracted communication network by a terminal identification number used independently in the communication network.

According to the present invention, the communication terminal further includes a plurality of communication networks and a communication terminal having a function of communicating with the plurality of communication networks, and subscriber information of the communication terminals is stored in a database for each communication network. The communication terminal independently requests each communication network to register the location of the called connection destination, and receives the called connection destination between communication networks in a communication system in which each communication network registers in its own database. A connection method, wherein the communication terminal is provided with a public terminal identification number and a private terminal identification number that is independently provided in each communication network, and all terminal identification numbers can wait for an incoming call. When the communication terminal is in a state, the published terminal identification number and routing information to all communication networks to which the communication terminal may move are stored in a database of a communication network contracted with the communication terminal, Other communication networks The database stores the disclosed terminal identification number and a secret terminal identification number independently assigned to each communication network, and when there is an incoming call request to the communication terminal, the contracted communication network Once connected to the communication terminal, a request for an incoming call is made to the communication terminal by referring to the location information in the own communication network from the database of the contracted communication network, and if there is no response from the communication terminal for a predetermined time, the communication terminal Based on the routing information to all the communication networks that may move, an incoming call request is made to the next incoming communication network with the published terminal identification number, and the incoming communication request is sent to the communication network of its own communication network. The disclosed terminal identification number is converted to a private terminal identification number in the own communication network by referring to the subscriber information in the database, and the communication terminal is terminated by referring to the position information of the private terminal identification number. Make a request and the communication terminal If there is a response et shifted during communication, if the response is not performed for a certain time,
Again, there is provided an inter-communication-network incoming connection method for notifying a non-response to the contracted communication network using the disclosed terminal identification number.

Further, according to the present invention, it includes a plurality of communication networks and a communication terminal having a function of communicating with the plurality of communication networks, and subscriber information of the communication terminals is stored in a database for each communication network. The communication terminal independently requests each communication network for location registration of an incoming connection destination, and each communication network registers the incoming connection destination in its own database. A method wherein the communication terminal is provided with a public terminal identification number used independently in each communication network, and when all terminal identification numbers are ready to receive a call, the communication A terminal identification number used in a communication network contracted with the terminal and routing information to all communication networks to which the communication terminal may move are stored in a database of the contracted communication network, and other communication is performed. Web database The terminal stores the terminal identification number independently assigned to each communication network, and when there is an incoming call request to the communication terminal, once connects to the contracted communication network, and then connects to the contracted communication network. A communication request is made to the communication terminal by referring to the position information in the own communication network from the network database, and if there is no response from the communication terminal for a certain period of time, all communication networks to which the communication terminal may move To the next incoming communication network based on the routing information to the next incoming communication network with the terminal identification number used in the contracted communication network, and the requested incoming communication network has the subscriber information in its own communication network database. The terminal identification number used in the contracted communication network is converted to the terminal identification number in the own communication network with reference to And if there is no response from the communication terminal In the case where there is no response for a certain period of time, if there is no response for a certain period of time, a non-response is notified again to the contracted communication network using a terminal identification number used in the contracted communication network. Is provided.

According to the present invention, there are also provided a plurality of communication networks and a communication terminal having a function of communicating with the plurality of communication networks, and the subscriber information of the communication terminals is stored in a database for each communication network. The communication terminal independently requests each communication network for location registration of an incoming connection destination, and each communication network registers the incoming connection destination in its own database. The method, wherein the communication terminal is provided with a public terminal identification number and a private terminal identification number which is independently provided in each communication network, and all terminal identification numbers can wait for an incoming call. When in the state, the published terminal identification number, routing information to all communication networks to which the communication terminal may move, and a private terminal identification number uniquely assigned to each communication network are included in the information. Communication network contracted with a communication terminal When there is an incoming call request to the communication terminal, the communication terminal once connects to the contracted communication network, and refers to the position information in the own communication network from a database of the contracted communication network. When an incoming call request is made to the communication terminal, and there is no response from the communication terminal for a certain period of time, the following is performed based on the routing information to all communication networks to which the communication terminal may move and the public terminal identification number. An incoming request is made to the communication network of the incoming order with a secret terminal identification number of the communication network, and the requested communication network is a subscriber of the own communication network database with the secret terminal identification number of the own communication network. Performs an incoming request to the communication terminal with reference to the information, shifts to communication during a communication from the communication terminal when there is a response from the communication terminal, and returns no response to the contracted communication network again when there is no response for a predetermined time. Private terminal identification number of the communication network Communication networks incoming connection method of notifying using is provided.

[0035]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment FIG. 5 shows a system configuration as a premise of a first embodiment of the present invention. This system configuration is basically the same as the system configuration in FIGS.

That is, in FIG. 5, 3 is a radio mobile station, 4
Is a mobile communication network A with which the wireless mobile station 3 can communicate, 5 is a mobile communication network B with which the wireless mobile station 3 can communicate, 1 is a mobile communication network A
(4) a specific radio zone, 10 is a specific radio control communication device that performs radio control with the radio mobile station 3 in the mobile communication network A,
Reference numeral 6 denotes an exchange device for controlling communication exchange with the radio control communication device 10 and other networks in the mobile communication network A, 8 a database for managing subscriber information and location information of the mobile communication network A, and 7 a mobile communication network B In (5), the switching device for controlling communication exchange with the wireless control communication device 11 of the own network (not shown in FIG. 5) and other networks, and 1
2 is a communication line connecting the mobile communication network A and the mobile communication network B, 13 is a calling terminal for communicating with the radio mobile station, 14 is a calling communication network to which the calling terminal 13 is connected, and 15 is a calling communication network 14 A communication line connecting the mobile communication network A and the transmission communication network 14;
Reference numeral 17 denotes a communication line connecting the mobile communication network B and the transmission communication network 14.

FIG. 6 shows a procedure for connection termination between communication networks in this embodiment.

The radio mobile station 3 can communicate with both the mobile communication network A (4) and the mobile communication network B (5), and has a common mobile station identification number in both the mobile communication network A and the mobile communication network B. Using α, it has a function that can make and receive calls on the mobile communication network A, can make and receive calls on the mobile communication network B, and can simultaneously wait for an incoming call from the mobile communication network A and an incoming call from the mobile communication network B. . In the present embodiment, the inter-network location registration procedure as in the prior art (step S21 in FIG. 2)
Steps S24 to S24) are not performed.

The mobile station identification number α corresponds to the mobile communication network A
And a mobile station identification number commonly used by the mobile communication network B and the identification information that preferentially arrives at the mobile communication network A.

Further, the subscriber information of the mobile station identification number α of the wireless mobile station 3 stored in the database 8 includes roaming information which enables the wireless mobile station 3 to communicate with the mobile communication network B and information of the mobile communication network B. This is routing information including a connection number X with the switching device 7. The position information of the mobile station identification number α stored in the database 8 is the position number of the wireless control communication device in the mobile communication network A.

Steps S1 to S5 in FIG. 6 are the same as the conventional position registration procedure, and the position information of the radio control communication device 10 is stored in the position information of the mobile station identification number α stored in the database 8 of the mobile communication network A. The number LI-a is registered.

That is, when the radio mobile station 3 comes under the radio zone 1 of the mobile communication network A, the radio mobile station 3
First, a position registration request including the mobile station identification number α is sent to the wireless control communication device 10 (step S1). Thus, the radio control communication device 10 makes a location registration request including the mobile station identification number α to the switching device 6 (step S2), and the switching device 6 sends the mobile station identification number α and the radio control communication device 10 to the database 8. A position registration request including the position number LI-a is performed (step S3). The database 8 stores the position information of the mobile station identification number α in the position number LI of the wireless control communication device 10.
-A (step S4), and notifies the wireless mobile station 3 via the switching device 6 and the wireless control communication device 10 that the location information has been updated normally when the location registration is completed (step S5).

After the radio mobile station 3 moves to the radio zone 2 of the mobile communication network B (see FIGS. 1 and 3),
When there is an incoming call request from the mobile station 3 with the mobile station identification number α, the outgoing communication network 14 makes an incoming call request to the switching device 6 of the mobile communication network A that is preferentially received via the communication line 16 ( Step S31).

Thus, the switching device 6 of the mobile communication network A
Sends a subscriber information request to the database 8 (step S32), thereby acquiring subscriber information including roaming information (step S33). Subsequently, a position information request is made (step S100), and the mobile station identification number α
Is obtained (step S101). At this time, the subscriber information request (step S32) and the location information request (step S100) may be performed simultaneously in one step, or the order of the subscriber information request and the location information request may be switched.

The exchange device 6 determines the position number L in the position information.
An incoming call request is sent from Ia to the wireless control communication device 10 whose location is registered with the mobile station identification number α (step S10).
2) After a lapse of a predetermined time, it is confirmed that there is no response from the wireless mobile station 3 (step S103), and the roaming information is searched for another communicable mobile communication network. 7 is obtained. Thereafter, the switching device 6 requests the switching device 7 for the incoming call with the connection number X and the mobile station identification number α (step S10).
4). At this time, an incoming call request may be made from the mobile communication network A directly to the mobile communication network B via the communication line 12, or an incoming call request may be made via the communication lines 16 and 17 via the outgoing communication network 14.

In the system configuration according to the first embodiment, the switching device 6, the database 8, and the radio control communication device 10 may exist in the same device. The database 8 may exist outside the mobile communication network A.

As described above, according to the first embodiment, an incoming call request can be made to another mobile communication network with one mobile station identification number without performing the inter-network location registration procedure.

Second Embodiment The system configuration which is the premise of the second embodiment of the present invention is as follows.
Since it is the same as the case of the first embodiment shown in FIG. 5 with reference to FIGS. 1 and 3, the description is omitted.

FIG. 7 shows an incoming call connection procedure between communication networks in the second embodiment.

The radio mobile station 3 can communicate with both the mobile communication network A (4) and the mobile communication network B (5), and uses the mobile station identification number α and the mobile communication network that are used independently in the mobile communication network A. It has both the mobile station identification number β independently used in the network B, can make and receive calls on the mobile communication network A, can make and receive calls on the mobile communication network B, and can receive and receive calls from the mobile communication network A. It has a function that can simultaneously receive an incoming call from the mobile communication network B. Such a wireless mobile station (for example, a dual terminal)
The function of is an existing technology. Also in this embodiment, an inter-network position registration procedure as in the prior art (step S2 in FIG. 2).
1 to S24) are not performed.

The mobile station identification number α and the mobile station identification number β are publicly available numbers, and the mobile station identification number α
Is connected to the mobile communication network A when there is an incoming call request to the wireless mobile station 3, and is connected to the mobile communication network B when there is an incoming call to the wireless mobile station 3 with the mobile station identification number β. .

The subscriber information of the mobile station identification number α of the wireless mobile station 3 stored in the database 8 is
Is routing information including roaming information capable of communicating with the mobile communication network B and a connection number X with the switching device 7 of the mobile communication network B. The position information of the mobile station identification number α stored in the database 8 is the position number of the wireless control communication device in the mobile communication network A.

Steps S1 to S5 are the same as the position registration procedure in the first embodiment, and the position information of the mobile station identification number α stored in the database 8 of the mobile communication network A is added to the position information of the radio control communication device 10. The position number LI-a is registered.

After the mobile station 3 has moved to the wireless zone 2 of the mobile communication network B, the mobile station identification number α
When there is an incoming call to the wireless mobile station 3, the outgoing communication network 14
Sends an incoming call request to the mobile communication network A via the communication line 16 (step S31). This step is the same as in the first embodiment.

Thus, the switching device 6 of the mobile communication network A
Sends a subscriber information request to the database 8 (step S32), and includes roaming information including the connection number X of the switching device 7 of the mobile communication network B and the mobile station identification number β in the mobile communication network B. Is obtained (step S43).
Subsequently, a position information request is made (step S10).
0), the position information LI-a of the mobile station identification number α is obtained (step S101). At this time, the subscriber information request (step S32) and the location information request (step S100) may be performed simultaneously in one step, or the order of the subscriber information request and the location information request may be switched.

The exchange device 6 determines the position number L in the position information.
An incoming call request is sent from Ia to the wireless control communication device 10 whose location is registered with the mobile station identification number α (step S10).
2) After a lapse of a predetermined time, it is confirmed that there is no response from the wireless mobile station 3 (step S103), and the roaming information is searched for another communicable mobile communication network. 7 and the mobile station identification number β in the mobile communication network B. Then, the exchange device 6
Is the connection number X and the mobile station identification number β
And an incoming call request is made (step S134). At this time, an incoming call request may be made from the mobile communication network A directly to the mobile communication network B via the communication line 12, or an incoming call request may be made via the communication lines 16 and 17 via the outgoing communication network 14.

In the system configuration according to the second embodiment, the switching device 6, the database 8, and the radio control communication device 10 may exist in the same device. The database 8 may exist outside the mobile communication network A.

As described above, according to the second embodiment, an incoming call request can be made to another mobile communication network with one mobile station identification number without performing an inter-network location registration procedure.

Third Embodiment FIG. 8 shows a system configuration which is the premise of the third embodiment of the present invention. This system configuration is basically the same as the system configuration in FIGS.

That is, in FIG. 8, 3 is a radio mobile station, 4
Is a mobile communication network A with which the wireless mobile station 3 can communicate, 5 is a mobile communication network B with which the wireless mobile station 3 can communicate, 1 is a mobile communication network A
(4) a specific wireless zone, 2 is a specific wireless zone of the mobile communication network B (5), 10 is a mobile communication network A and a wireless mobile station 3
6 is a specific radio control communication device for performing radio control with the mobile communication network A, 6 is a switching device for performing communication exchange control with the radio control communication device 10 and other networks in the mobile communication network A, and 8 is subscriber information and location of the mobile communication network A. A database for managing information, etc., 11 is a mobile communication network B
Is a specific radio control communication device that performs radio control with the radio mobile station 3, and 7 is a radio control communication device 11 of its own network in the mobile communication network B.
And a switching device for controlling communication exchange with other networks, 9 is a database for managing subscriber information and location information of the mobile communication network B, 12 is a communication line connecting the mobile communication network A and the mobile communication network B, 13 is a calling terminal for communicating with the wireless mobile station, 14
Is a calling communication network to which the calling terminal 13 is connected; 15 is a communication line connecting the calling communication network 14 and the calling terminal 13;
Reference numeral 6 denotes a communication line connecting the mobile communication network A and the calling communication network 14, and reference numeral 17 denotes a communication line connecting the mobile communication network B and the calling communication network 14.

FIG. 9 shows an incoming call connection procedure between communication networks in this embodiment.

The radio mobile station 3 can communicate with both the mobile communication network A (4) and the mobile communication network B (5), and has a mobile station identification number common to both the mobile communication network A and the mobile communication network B. Using α, it has a function that can make and receive calls on the mobile communication network A, can make and receive calls on the mobile communication network B, and can simultaneously wait for an incoming call from the mobile communication network A and an incoming call from the mobile communication network B. .

The mobile station identification number α corresponds to the mobile communication network A
And a mobile station identification number commonly used by the mobile communication network B and the identification information that preferentially arrives at the mobile communication network A.

Further, the subscriber information of the mobile station identification number α of the radio mobile station 3 stored in the database 8 includes roaming information that enables the radio mobile station 3 to communicate with the mobile communication network B and information of the mobile communication network B. This is routing information including a connection number X with the switching device 7. The subscriber information of the mobile station identification number α of the wireless mobile station 3 stored in the database 9 is information including roaming information that enables the wireless mobile station 3 to communicate with the mobile communication network A. The position information of the mobile station identification number α stored in the database 8 is the position number of the wireless control communication device in the mobile communication network A. The position information of the mobile station identification number α stored in the database 9 is the position number of the wireless control communication device in the mobile communication network B.

Steps S1 to S5 in FIG.
Is the same as the location registration procedure in the embodiment, and the location information of the radio control communication device 10 is added to the location information of the mobile station identification number α stored in the database 8 of the mobile communication network A.
-A is registered. The same applies to the location registration procedure in the mobile communication network B, and the location number LI-b of the wireless control communication device 11 is registered in the database 9 of the mobile communication network B in the location information of the mobile station identification number α (steps S51 to S54). ).
Also in the present embodiment, the inter-network position registration procedure (steps S21 to S24 in FIG. 2) as in the related art is not performed.

After the mobile station 3 moves to the wireless zone 2 of the mobile communication network B, the mobile station identification number α
When there is an incoming call request to the radio mobile station 3, the originating communication network 1
4 makes an incoming call request to the switching device 6 of the mobile communication network A, which is preferentially received via the communication line 16 (step S3).
1).

Thus, the switching device 6 of the mobile communication network A
Sends a subscriber information request to the database 8 (step S32), thereby acquiring subscriber information including roaming information (step S33). Subsequently, a position information request is made (step S100), and the mobile station identification number α
Is obtained (step S101). At this time, the subscriber information request (step S32) and the location information request (step S100) may be performed simultaneously in one step, or the order of the subscriber information request and the location information request may be switched.

The exchange device 6 determines the position number L in the position information.
An incoming call request is sent from Ia to the wireless control communication device 10 whose location is registered with the mobile station identification number α (step S10).
2) After a lapse of a predetermined time, it is confirmed that there is no response from the wireless mobile station 3 (step S103), and the roaming information is searched for another communicable mobile communication network. 7 is obtained. Thereafter, the switching device 6 requests the switching device 7 for the incoming call with the connection number X and the mobile station identification number α (step S10).
4). At this time, an incoming call request may be made from the mobile communication network A directly to the mobile communication network B via the communication line 12, or an incoming call request may be made via the communication lines 16 and 17 via the outgoing communication network 14.

When the switching device 7 of the mobile communication network B receives the incoming call request with the mobile station identification number α, it makes a position information request to the database 9 (step S 105). Is acquired (step S106). Next, an incoming call request is made to the radio control communication apparatus 11 corresponding to the position number LI-b with the mobile station identification number α (step S107).

Thus, the radio control communication device 11 makes an incoming call request with the mobile station identification number α to the radio mobile station 3 (step S108), and when the radio mobile station 3 responds (step S37), the communication is performed. Migrate inside.

If there is no response from the radio mobile station 3 even after a certain period of time has passed, the mobile communication network A is notified of no response by the mobile station identification number α.

In the system configuration according to the third embodiment, the switching device 6, the database 8, and the radio control communication device 10 may exist in the same device. The database 8 may exist outside the mobile communication network A.

As described above, according to the third embodiment, an incoming call request can be made to another mobile communication network with one mobile station identification number without performing an inter-network location registration procedure.

Fourth Embodiment The system configuration which is the premise of the fourth embodiment of the present invention is as follows.
Since this is the same as the case of the third embodiment shown in FIG. 8 with reference to FIGS. 1 and 3, the description is omitted.

FIG. 10 shows an incoming call connection procedure between communication networks in the fourth embodiment.

The radio mobile station 3 can communicate with both the mobile communication network A (4) and the mobile communication network B (5), and the mobile station identification number α in the mobile communication network A and the mobile communication network B independently. It has both the secret mobile station identification number (the mobile station identification number on the back) γ to be used and can make and receive calls on the mobile communication network A, and can make and receive calls on the mobile communication network B. It has a function that can simultaneously receive an incoming call from the communication network A and an incoming call from the mobile communication network B.

The mobile station identification number α is a publicly available number, and the mobile station identification number γ is a secret back number. When there is an incoming call request to the wireless mobile station 3 with the mobile station identification number α, the mobile station 3 is preferentially connected to the mobile communication network A.

The subscriber information of the mobile station identification number α of the radio mobile station 3 stored in the database 8 is
Is roaming information enabling communication with the mobile communication network B and routing information including a connection number X with the switching device 7 of the mobile communication network B. The subscriber information of the mobile station identification number α of the wireless mobile station 3 stored in the database 9 includes roaming information enabling the wireless mobile station 3 to communicate with the mobile communication network A and mobile station identification number γ in the mobile communication network B. The information includes: The position information of the mobile station identification number α stored in the database 8 is the position number of the radio control communication device in the mobile communication network A, and the position information of the mobile station identification number γ stored in the database 9 is This is the position number of the wireless control communication device in the mobile communication network B.

Steps S1 to S5 are the same as the position registration procedure in the first embodiment, and the position information of the mobile station identification number α stored in the database 8 of the mobile communication network A is added to the position information of the radio control communication device 10. The position number LI-a is registered. The location registration procedure in the mobile communication network B is the same, and the location number LI-b of the wireless control communication device 11 is registered in the location information of the mobile station identification number γ stored in the database 9 of the mobile communication network B. (Steps S61 to S6)
4). Also in the present embodiment, the inter-network position registration procedure (steps S21 to S24 in FIG. 2) as in the related art is not performed.

After the mobile station 3 moves to the radio zone 2 of the mobile communication network B, the mobile station identification number α
When there is an incoming call to the wireless mobile station 3, the outgoing communication network 14
Sends an incoming call request to the mobile communication network A via the communication line 16 (step S31). This step is the same as in the first embodiment.

Thus, the switching device 6 of the mobile communication network A
Sends a subscriber information request to the database 8 (step S32), and acquires subscriber information including roaming information (step S33). Subsequently, a position information request is made (step S100), and the position information L of the mobile station identification number α is obtained.
Ia is acquired (step S101). At this time, the subscriber information request (step S32) and the location information request (step S100) may be simultaneously performed in one process,
The order of the subscriber information request and the position information request may be switched.

The exchange device 6 determines the position number L in the position information.
An incoming call request is sent from Ia to the wireless control communication device 10 whose location is registered with the mobile station identification number α (step S10).
2) After a lapse of a predetermined time, it is confirmed that there is no response from the wireless mobile station 3 (step S103), and the roaming information is searched for another communicable mobile communication network. 7 is obtained. Thereafter, the switching device 6 requests the switching device 7 for the incoming call with the connection number X and the mobile station identification number α (step S10).
4). At this time, an incoming call request may be made from the mobile communication network A directly to the mobile communication network B via the communication line 12, or an incoming call request may be made via the communication lines 16 and 17 via the outgoing communication network 14.

When receiving the incoming call request with the mobile station identification number α, the switching device 7 of the mobile communication network B requests the database 9 for the location information and the subscriber information (step S105). γ and position number LI-
b and the location information including the subscriber information are obtained (step S116). Next, an incoming call request is made to the position-registered wireless control communication device 11 with the mobile station identification number γ and the mobile station identification number α (step S117).

As a result, the radio control communication apparatus 11 makes an incoming call to the radio mobile station 3 with the mobile station identification number γ and the mobile station identification number α (step S118).
Is responded (step S37), the process proceeds during communication.

If there is no response from the radio mobile station 3 even after a certain period of time has passed, the mobile communication network A is notified of the fact that there is no response by the mobile station identification number α.

In the system configuration according to the fourth embodiment, the switching device 6, the database 8, and the radio control communication device 10 may exist in the same device. The database 8 may exist outside the mobile communication network A.

As described above, according to the fourth embodiment, an incoming call request can be made to another mobile communication network with one mobile station identification number without performing an inter-network location registration procedure.

Fifth Embodiment The system configuration which is the premise of the fifth embodiment of the present invention is as follows.
Since this is the same as the case of the third embodiment shown in FIG. 8 with reference to FIGS. 1 and 3, the description is omitted.

FIG. 11 shows a procedure for terminating connection between communication networks according to the fifth embodiment.

The radio mobile station 3 can communicate with both the mobile communication network A (4) and the mobile communication network B (5), and uses the mobile station identification number α used independently in the mobile communication network A and the mobile communication network A (4). It has both the mobile station identification number β and the mobile station identification number β that are used independently in the network B, and can make and receive calls in the mobile communication network A, can make and receive calls in the mobile communication network B, and receive calls from the mobile communication network A. And a function of simultaneously waiting for an incoming call from the mobile communication network B. Such a wireless mobile station (for example, a dual terminal)
The function of is an existing technology.

The mobile station identification number α and the mobile station identification number β are publicly available numbers. When there is an incoming call request to the radio mobile station 3 with the mobile station identification number α, the mobile communication network A
Is connected to the mobile communication network B when there is an incoming call request to the radio mobile station 3 with the mobile station identification number β.

The subscriber information of the mobile station identification number α of the wireless mobile station 3 stored in the database 8 is
Is roaming information enabling communication with the mobile communication network B and routing information including a connection number X with the switching device 7 of the mobile communication network B. The subscriber information of the mobile station identification number β of the wireless mobile station 3 stored in the database 9 is information including roaming information that enables the wireless mobile station 3 to communicate with the mobile communication network A. The position information of the mobile station identification number α stored in the database 8 is the position number of the radio control communication device in the mobile communication network A, and the position information of the mobile station identification number β stored in the database 9 is Mobile communication network B
It is the position number of the wireless control communication device in the inside.

Steps S1 to S5 are the same as the position registration procedure in the first embodiment, and the position information of the mobile station identification number α stored in the database 8 of the mobile communication network A is added to the position information of the radio control communication device 10. The position number LI-a is registered. The location registration procedure in the mobile communication network B is the same, and the location number LI-b of the radio control communication device 11 is registered in the location information of the mobile station identification number β stored in the database 9 of the mobile communication network B. (Steps S6 to S1)
0). Also in the present embodiment, the inter-network position registration procedure (steps S21 to S24 in FIG. 2) as in the related art is not performed.

After the mobile station 3 moves to the wireless zone 2 of the mobile communication network B, the mobile station identification number α
When there is an incoming call to the wireless mobile station 3, the outgoing communication network 14
Sends an incoming call request to the mobile communication network A via the communication line 16 (step S31). This step is the same as in the first embodiment.

Thus, the switching device 6 of the mobile communication network A
Sends a subscriber information request to the database 8 (step S32), and acquires subscriber information including roaming information (step S33). Subsequently, a position information request is made (step S100), and the position information L of the mobile station identification number α is obtained.
Ia is acquired (step S101). At this time, the subscriber information request (step S32) and the location information request (step S100) may be simultaneously performed in one process,
The order of the subscriber information request and the position information request may be switched.

[0096] The exchange device 6 determines the position number L in the position information.
An incoming call request is sent from Ia to the wireless control communication device 10 whose location is registered with the mobile station identification number α (step S10).
2) After a lapse of a predetermined time, it is confirmed that there is no response from the wireless mobile station 3 (step S103), and the roaming information is searched for another communicable mobile communication network. 7 is obtained. Thereafter, the switching device 6 requests the switching device 7 for the incoming call with the connection number X and the mobile station identification number α (step S10).
4). At this time, an incoming call request may be made from the mobile communication network A directly to the mobile communication network B via the communication line 12, or an incoming call request may be made via the communication lines 16 and 17 via the outgoing communication network 14.

Upon receiving the incoming call request with the mobile station identification number α, the switching device 7 of the mobile communication network B requests the database 9 for location information and subscriber information (step S105). Then, the location information including the mobile station identification number β and the location number LI-b and the subscriber information are obtained (step S126). Next, the mobile station identification number β
A request for an incoming call is made (step S127).

Thus, the radio control communication apparatus 11 makes an incoming call to the radio mobile station 3 with the mobile station identification number β (step S128), and when the radio mobile station 3 responds (step S37), the communication is in progress. Move to

If there is no response from the radio mobile station 3 even after the lapse of a certain time, the mobile communication network A is notified of no response by the mobile station identification number α.

In the system configuration according to the fifth embodiment, the switching device 6, the database 8, and the radio control communication device 10 may exist in the same device. The database 8 may exist outside the mobile communication network A.

As described above, according to the fifth embodiment, an incoming call request can be made to another mobile communication network with one mobile station identification number without performing the inter-network location registration procedure.

Sixth Embodiment The system configuration which is the premise of the sixth embodiment of the present invention is as follows.
Since this is the same as the case of the third embodiment shown in FIG. 8 with reference to FIGS. 1 and 3, the description is omitted.

FIG. 12 shows an incoming call connection procedure between communication networks in the sixth embodiment.

The radio mobile station 3 can communicate with both the mobile communication network A (4) and the mobile communication network B (5), and uses the mobile station identification number α independently used in the mobile communication network A and the mobile communication network A (4). It has both the mobile station identification number β and the mobile station identification number β that are used independently in the network B, and can make and receive calls in the mobile communication network A, can make and receive calls in the mobile communication network B, and receive calls from the mobile communication network A. And a function of simultaneously waiting for an incoming call from the mobile communication network B. Such a wireless mobile station (for example, a dual terminal)
The function of is an existing technology.

The mobile station identification number α and the mobile station identification number β are publicly available numbers. When there is an incoming call request to the radio mobile station 3 with the mobile station identification number α, the mobile communication network A
Is connected to the mobile communication network B when there is an incoming call request to the radio mobile station 3 with the mobile station identification number β.

The subscriber information of the mobile station identification number α of the radio mobile station 3 stored in the database 8 is
Are the roaming information enabling communication with the mobile communication network B, the routing information including the mobile station identification number β in the mobile communication network B, and the connection number X of the mobile communication network B with the switching device 7.
The position information of the mobile station identification number α stored in the database 8 is the position number of the radio control communication device in the mobile communication network A, and the position information of the mobile station identification number β stored in the database 9 is This is the position number of the wireless control communication device in the mobile communication network B.

Steps S1 to S5 are the same as the position registration procedure in the first embodiment, and the position information of the mobile station identification number α stored in the database 8 of the mobile communication network A is added to the position information of the radio control communication device 10. The position number LI-a is registered. The location registration procedure in the mobile communication network B is the same, and the location number LI-b of the radio control communication device 11 is registered in the location information of the mobile station identification number β stored in the database 9 of the mobile communication network B. (Steps S6 to S1)
0). Also in the present embodiment, the inter-network position registration procedure (steps S21 to S24 in FIG. 2) as in the related art is not performed.

After the mobile station 3 moves to the wireless zone 2 of the mobile communication network B, the mobile station identification number α
When there is an incoming call to the wireless mobile station 3, the outgoing communication network 14
Sends an incoming call request to the mobile communication network A via the communication line 16 (step S31). This step is the same as in the first embodiment.

Thus, the switching device 6 of the mobile communication network A
Sends a subscriber information request to the database 8 (step S32), and includes the connection number X of the switching device 7 of the mobile communication network B and the roaming information including the mobile station identification number β in the mobile communication network B. Acquire information (step S4
3). Subsequently, a position information request is made (step S1).
00), the position information LI-a of the mobile station identification number α is obtained (step S101). At this time, the subscriber information request (step S32) and the location information request (step S100) may be performed simultaneously in one step, or the order of the subscriber information request and the location information request may be switched.

The exchange device 6 determines the position number L in the position information.
An incoming call request is sent from Ia to the wireless control communication device 10 whose location is registered with the mobile station identification number α (step S10).
2) After a lapse of a predetermined time, it is confirmed that there is no response from the wireless mobile station 3 (step S103), and the roaming information is searched for another communicable mobile communication network. 7 and the mobile station identification number β in the mobile communication network B. Then, the exchange device 6
Is the connection number X and the mobile station identification number β
And an incoming call request is made (step S134). At this time, an incoming call request may be made from the mobile communication network A directly to the mobile communication network B via the communication line 12, or an incoming call request may be made via the communication lines 16 and 17 via the outgoing communication network 14.

Upon receiving the incoming call request with the mobile station identification number β, the switching device 7 of the mobile communication network B requests the database 9 for location information (step S135).
From the position number LI-b (step S13)
6). Next, an incoming call request is made to the position-registered radio control communication apparatus 11 with the mobile station identification number β (step S).
127).

As a result, the radio control communication apparatus 11 makes an incoming call to the radio mobile station 3 with the mobile station identification number β (step S128), and when the radio mobile station 3 responds (step S37), the communication is in progress. Move to

If there is no response from the radio mobile station 3 even after a certain period of time, the mobile communication network A is notified of no response by the mobile station identification number β.

In the system configuration according to the sixth embodiment, the switching device 6, the database 8, and the radio control communication device 10 may exist in the same device. The database 8 may exist outside the mobile communication network A.

As described above, according to the sixth embodiment, an incoming call request can be made to another mobile communication network with one mobile station identification number without performing the inter-network location registration procedure.

Seventh Embodiment The system configuration which is the premise of the seventh embodiment of the present invention is as follows.
Since this is the same as the case of the third embodiment shown in FIG. 8 with reference to FIGS. 1 and 3, the description is omitted.

FIG. 13 shows an incoming call connection procedure between communication networks in the seventh embodiment.

The radio mobile station 3 can communicate with both the mobile communication network A (4) and the mobile communication network B (5), and the mobile station identification number α of the mobile communication network A and the mobile communication network B independently. It has both the secret mobile station identification number (the mobile station identification number on the back) γ to be used and can make and receive calls on the mobile communication network A, and can make and receive calls on the mobile communication network B. Communication network A
And a function for simultaneously waiting for an incoming call from the mobile communication network B.

The mobile station identification number α is a publicly available number, and the mobile station identification number γ is a secret back number. When there is an incoming call request to the wireless mobile station 3 with the mobile station identification number α, the mobile station 3 is preferentially connected to the mobile communication network A.

The subscriber information of the mobile station identification number α of the radio mobile station 3 stored in the database 8 is
Are the roaming information enabling communication with the mobile communication network B, the routing information including the mobile station identification number γ in the mobile communication network B, and the connection number X of the mobile communication network B with the switching device 7. The subscriber information of the mobile station identification number α of the wireless mobile station 3 stored in the database 9 includes roaming information enabling the wireless mobile station 3 to communicate with the mobile communication network A and mobile station identification number γ in the mobile communication network B. The information includes: The position information of the mobile station identification number α stored in the database 8 is the position number of the radio control communication device in the mobile communication network A, and the position information of the mobile station identification number γ stored in the database 9 is This is the position number of the wireless control communication device in the mobile communication network B.

Steps S1 to S5 are the same as the position registration procedure in the first embodiment, and the position information of the mobile station identification number α stored in the database 8 of the mobile communication network A is added to the position information of the radio control communication device 10. The position number LI-a is registered. The location registration procedure in the mobile communication network B is the same, and the location number LI-b of the wireless control communication device 11 is registered in the location information of the mobile station identification number γ stored in the database 9 of the mobile communication network B. (Steps S61 to S6)
4). Also in the present embodiment, the inter-network position registration procedure (steps S21 to S24 in FIG. 2) as in the related art is not performed.

After the mobile station 3 moves to the radio zone 2 of the mobile communication network B, the mobile station identification number α
When there is an incoming call to the wireless mobile station 3, the outgoing communication network 14
Sends an incoming call request to the mobile communication network A via the communication line 16 (step S31). This step is the same as in the first embodiment.

As a result, the switching device 6 of the mobile communication network A
Sends a subscriber information request to the database 8 (step S32), and obtains roaming information and subscriber information including the mobile station identification number γ in the mobile communication network B and the connection number X of the mobile communication network B with the switching device 7. (Step S53). Following this, a position information request is made (step S100),
The position information LI-a of the mobile station identification number α is obtained (step S101). At this time, the subscriber information request (step S
32) and the location information request (step S100) may be performed simultaneously in one step, or the order of the subscriber information request and the location information request may be switched.

The exchange device 6 determines the position number L in the position information.
An incoming call request is sent from Ia to the wireless control communication device 10 whose location is registered with the mobile station identification number α (step S10).
2) After a lapse of a predetermined time, it is confirmed that there is no response from the wireless mobile station 3 (step S103), and a search is made from the roaming information for another mobile communication network that can communicate, and the mobile station in the mobile communication network B is searched. The identification number γ and the connection number X of the switching device 7 of the mobile communication network B are acquired. Thereafter, the switching device 6 requests the switching device 7 for the incoming call with the mobile station identification number γ and the connection number X (step S144). At this time, an incoming call request may be sent directly from the mobile communication network A to the mobile communication network B via the communication line 12, or the communication lines 16 and 17 may be used.
May be requested via the calling communication network 14.

Upon receiving the incoming call request with mobile station identification number β, switching device 7 of mobile communication network B requests location information of mobile station identification number γ from database 9 (step S145).
The position number LI-b is obtained from the database 9 (step S146). Next, an incoming call request is made to the position-registered wireless control communication device 11 with the mobile station identification number γ and the mobile station identification number α (step S117).

As a result, the radio control communication apparatus 11 makes an incoming call to the radio mobile station 3 with the mobile station identification number γ and the mobile station identification number α (step S118).
Is responded (step S37), the process proceeds during communication.

If there is no response from the radio mobile station 3 even after a certain period of time has passed, the mobile communication network A is notified of no response by the mobile station identification number γ.

In the system configuration according to the seventh embodiment, the switching device 6, the database 8, and the radio control communication device 10 may exist in the same device. The database 8 may exist outside the mobile communication network A.

As described above, according to the seventh embodiment, an incoming call request can be made to another mobile communication network with one mobile station identification number without performing the inter-network location registration procedure.

In the above-described embodiment, the specific communication network A is described as having such a function. However, even if each communication network has this function, the effect of the present invention does not change. . As a result, the incoming call completion rate increases, and the number of invalid calls decreases.

The embodiments described above all show the present invention by way of example and not by way of limitation, and the present invention can be embodied in other various modifications and alterations. Therefore, the scope of the present invention is defined only by the appended claims and their equivalents.

[0132]

As described above in detail, according to the present invention, subscriber information, roaming information and routing information of a radio mobile station are shared between mobile communication networks, and the order of arrival of the communication network is determined in advance. In this case, the call is sequentially received from the communication network having the highest priority. Therefore, when a call is received over a plurality of mobile communication networks, the inter-network location registration procedure can be omitted. Simplified.

[Brief description of the drawings]

FIG. 1 is a diagram showing conventional location registration routing.

FIG. 2 is a diagram showing a conventional location registration procedure.

FIG. 3 is a diagram showing conventional incoming call routing.

FIG. 4 is a diagram showing a conventional incoming call connection procedure.

FIG. 5 is a configuration diagram of a communication system according to the first and second embodiments of the present invention.

FIG. 6 is a diagram showing an incoming call connection procedure between communication networks in the first embodiment of the present invention.

FIG. 7 is a diagram showing an incoming call connection procedure between communication networks in the second embodiment of the present invention.

FIG. 8 is a configuration diagram of a communication system according to third to seventh embodiments of the present invention.

FIG. 9 is a diagram showing an incoming call connection procedure between communication networks in the third embodiment of the present invention.

FIG. 10 is a diagram illustrating an incoming call connection procedure between communication networks according to a fourth embodiment of the present invention.

FIG. 11 is a diagram showing an incoming call connection procedure between communication networks in a fifth embodiment of the present invention.

FIG. 12 is a diagram showing an incoming call connection procedure between communication networks in a sixth embodiment of the present invention.

FIG. 13 is a diagram showing an incoming call connection procedure between communication networks in a seventh embodiment of the present invention.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 wireless zone of mobile communication network A 2 wireless zone of mobile communication network B 3 wireless mobile station 4 mobile communication network A 5 mobile communication network B 6 switching device in mobile communication network A 7 switching device in mobile communication network B 8 mobile Database of communication network A 9 Database of mobile communication network B 10 Radio control communication device in mobile communication network A 11 Radio control communication device in mobile communication network B 12 Communication line connecting mobile communication network A and mobile communication network B 13 Outgoing terminal 14 Outgoing communication network 15 Communication line connecting the outgoing terminal and the outgoing communication network 16 Communication line connecting the outgoing communication network and the mobile communication network A 17 Communication line connecting the outgoing communication network and the mobile communication network B α Moving Mobile station identification number of wireless mobile station 3 in communication network A β Mobile station identification number of wireless mobile station 3 in mobile communication network B γ Undisclosed mobile station identification number of wireless mobile station 3 in mobile communication network B X Connection number of switching device 7 of mobile communication network B LI-a Location number of radio control communication device 10 LI-b Location number of radio control communication device 11

──────────────────────────────────────────────────の Continued on front page (51) Int.Cl. ⁶ Identification code FI H04Q 7/30

Claims (7)

[Claims] 1. A communication terminal comprising: a plurality of communication networks; and a communication terminal having a function of communicating with the plurality of communication networks, wherein subscriber information of the communication terminals is managed in a database for each communication network. Is an inter-communication network incoming connection method in a communication system in which each communication network independently requests the location registration of an incoming connection destination, and each communication network registers the incoming connection destination in its own database. The communication terminal is provided with a terminal identification number commonly used in each communication network, and when the destination communication network is in a state where standby for incoming calls is possible, the terminal identification number and the The routing information to all communication networks to which the communication terminal may move is stored in the database of the communication network contracted with the communication terminal, and when there is an incoming call request to the communication terminal, the Once connected to the contracted communication network After that, a request for an incoming call is made to the communication terminal by referring to the location information in the own communication network from the database of the contracted communication network, and if there is no response from the communication terminal for a predetermined time, the communication terminal moves. An inter-communications-network terminating connection method, wherein an incoming call request is made to a communication network of the next incoming order based on routing information to all possible communication networks. 2. The communication network of the next incoming call order for which the incoming call is requested, refers to the location information of its own communication network database based on the commonly used terminal identification number, and issues an incoming call request to the communication terminal. Perform, if there is a response from the communication terminal, shift to communication, if there is no response for a certain time, again,
2. The method according to claim 1, wherein a non-response is notified to the contracted communication network. 3. A communication terminal comprising: a plurality of communication networks; and a communication terminal having a function of communicating with the plurality of communication networks, wherein subscriber information of the communication terminals is managed in a database for each communication network. Is an inter-communication network incoming connection method in a communication system in which each communication network independently requests the location registration of an incoming connection destination, and each communication network registers the incoming connection destination in its own database. A communication terminal is assigned a terminal identification number that is used independently in each communication network. When all terminal identification numbers are ready to receive a call, they are used in a communication network contracted with the communication terminal. The terminal identification number and the routing information to all the communication networks to which the communication terminal may move are stored in the database of the contracted communication network, and when there is an incoming call request to the communication terminal, Is the contracted communication network Once connected to the communication terminal, a request for an incoming call is made to the communication terminal by referring to the location information in the own communication network from the database of the contracted communication network, and if there is no response from the communication terminal for a predetermined time, the communication terminal Terminal identification to be used independently in the communication network to the next arrival order communication network based on routing information to all the mobile networks that may move and terminal identification numbers used independently in each communication network An incoming call connection method between communication networks, wherein an incoming call is requested by a number. 4. The communication network of the next incoming call order requested by the incoming call is referred to the position information of its own communication network database based on the terminal identification number independently used in the communication network, and the communication terminal of the communication terminal is notified to the communication terminal. Performs an incoming call request, shifts to communication if there is a response from the communication terminal, and if there is no response for a certain time,
4. The method according to claim 3, wherein a non-response is again notified to the contracted communication network by a terminal identification number used independently in the communication network. 5. A communication terminal comprising: a plurality of communication networks; and a communication terminal having a function of communicating with the plurality of communication networks, wherein subscriber information of the communication terminals is managed in a database for each communication network. Is an inter-communication network incoming connection method in a communication system in which each communication network independently requests the location registration of an incoming connection destination, and each communication network registers the incoming connection destination in its own database. A communication terminal is provided with a public terminal identification number and a private terminal identification number that is independently assigned in each communication network, and when all terminal identification numbers are ready to receive a call, Store the published terminal identification number and routing information to all communication networks in which the communication terminal may move in a database of a communication network contracted with the communication terminal,
The database of the other communication networks stores the disclosed terminal identification number and a secret terminal identification number independently assigned to each communication network, and when there is an incoming call request to the communication terminal, When once connected to the contracted communication network, an incoming call request is made to the communication terminal by referring to the location information in the own communication network from the contracted communication network database, and there is no response from the communication terminal for a certain period of time. Makes a call request with the published terminal identification number to the communication network of the next call order based on the routing information to all the communication networks to which the communication terminal may move, and the communication network requested to make the call is Convert the published terminal identification number into a private terminal identification number in the own communication network with reference to the subscriber information of the own communication network database, and refer to the position information of the private terminal identification number. Incoming request to the communication terminal If there is a response from the communication terminal, it shifts to communication, and if there is no response for a certain period of time, a non-response is again notified to the contracted communication network using the published terminal identification number. An incoming call connection method between communication networks. 6. A communication terminal comprising: a plurality of communication networks; and a communication terminal having a function of communicating with the plurality of communication networks, wherein subscriber information of the communication terminals is managed in a database for each communication network. Is an inter-communication network incoming connection method in a communication system in which each communication network independently requests the location registration of an incoming connection destination, and each communication network registers the incoming connection destination in its own database. A communication terminal is provided with a public terminal identification number that is used independently in each communication network. When all terminal identification numbers are ready to receive an incoming call, a communication network contracted with the communication terminal is required. In the database of the contracted communication network, the terminal identification number used in the above and the routing information to all communication networks to which the communication terminal may move are stored in the database of the contracted communication network. Independent of communication network The assigned terminal identification number is stored, and when an incoming call request is made to the communication terminal, the terminal is once connected to the contracted communication network, and then stored in the database of the contracted communication network. An incoming call request is made to the communication terminal with reference to the location information, and if there is no response from the communication terminal for a certain period of time, the communication terminal performs the following based on routing information to all communication networks that may move. An incoming call request is made to a communication network of an incoming order with a terminal identification number used in the contracted communication network, and the communication network requested to receive an incoming call refers to subscriber information in a database of the own communication network, and the contracted communication network Is converted to a terminal identification number in its own communication network, a call request is made to the communication terminal with reference to the position information of the terminal identification number in the own communication network, and a response from the communication terminal is made. If there is, move during communication If there is no response for a predetermined time, a non-response is again notified to the contracted communication network using a terminal identification number used in the contracted communication network. 7. A communication terminal comprising: a plurality of communication networks; and a communication terminal having a function of communicating with the plurality of communication networks, wherein subscriber information of the communication terminals is managed in a database for each communication network. Is an inter-communication network incoming connection method in a communication system in which each communication network independently requests the location registration of an incoming connection destination, and each communication network registers the incoming connection destination in its own database. A communication terminal is provided with a public terminal identification number and a private terminal identification number that is independently assigned in each communication network, and when all terminal identification numbers are ready to receive a call, Communication in which the disclosed terminal identification number, routing information to all communication networks to which the communication terminal may move, and a private terminal identification number uniquely assigned to each communication network are contracted with the communication terminal. Stored in the web database When there is an incoming call request to the communication terminal, the mobile terminal once connects to the contracted communication network, refers to the position information in the own communication network from the contracted communication network database, and receives the incoming call request to the communication terminal. And if there is no response from the communication terminal for a certain period of time, the communication network of the next incoming order based on the routing information to all communication networks to which the communication terminal may move and the public terminal identification number Requesting an incoming call with a secret terminal identification number of the communication network, and referring to the subscriber information in the database of the own communication network with the secret terminal identification number of the own communication network. An incoming call request is made to the communication terminal. If there is a response from the communication terminal, the communication terminal shifts to a communication state. Notify using a secret terminal identification number And an incoming connection method between communication networks.