JPH1042369A - Incoming connecting destination registering method and system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically enable incoming connection when a radio mobile station moves to a radio area of a different mobile communication network. SOLUTION: To an incoming transfer device 24 which manages the transfer destination of an incoming call to a radio mobile station 14 which moves between plural mobile communication networks 18 and 19, the station 14 makes its location registration to a mobile communication network which manages a radio area to which the station 14 moves in an incoming connecting destination registering method which performs an incoming destination registration of the station 14 when the station 14 moves to another different mobile communication network whenever the station 14 moves from the mobile communication network in which the station 14 is communicating to another mobile communication network, and automatically makes the registration of an incoming transfer destination to the device 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an incoming call destination registration method for registering a tracking connection (roaming incoming call) destination across a plurality of networks in a call transfer device 24 for a radio mobile station 14 existing between different mobile networks. It is about.

[0002]

2. Description of the Related Art A conventional method for terminating a call to a radio mobile station 14 moving between different mobile networks will be described with reference to FIG. In the figure, reference numeral 11 denotes a subscriber information DB1 which holds subscriber information relating to the number α52 used in the mobile communication network A and information indicating the position in the mobile communication network A of the radio mobile station 14 having the number α. , 12 are circuit connection devices 2 for performing circuit switching control in the mobile communication network A 18, 13 is a radio base station, 14 is a radio mobile station, and 15 is a subscription regarding a number β used in the mobile communication network B 19. Information and
A subscriber information DB 2 for holding information indicating the position of the wireless mobile station 14 having the number β in the mobile communication network B, and 16 a line connection device 3 for performing circuit switching control in the mobile communication network A 18
Reference numeral 21 denotes a line connection device 1 for performing circuit switching control in a fixed communication network, reference numeral 23 denotes a fixed communication terminal, and reference numeral 24 denotes a call transfer device for providing a call transfer means.

[0003] The radio mobile station 14 can make and receive calls in both mobile communication networks A18 and B19. In each of the mobile communication networks, it makes and receives calls using numbers α and β. Information related to the number α is subscriber information A,
Information relating to the number β is registered in the subscriber information β.
Here, the mobile communication network A18 and the mobile communication network B19 may be wireless communication networks employing different wireless access schemes. However, in this case, the wireless mobile station 14 needs to have a function of supporting both wireless access methods and automatically switching the access method depending on the wireless communication network in which it is located. Further, the call transfer device 24 and the mobile communication network A18, the mobile communication network B19, and the fixed communication network may be directly connected, or may be connected via another network.

FIG. 2 is a diagram showing one embodiment of a conventional incoming call transfer device 24. As shown in FIG. The purpose of using the incoming call transfer device 24 is as follows. When a call is received to the radio mobile station 14 which is subscribed to each of the plurality of mobile communication networks and moves between the plurality of mobile communication networks, the caller sets a mobile communication network in which the radio mobile station is currently located. It is necessary to estimate and use the number given to the wireless mobile station 14 in the mobile communication network.
For this reason, there is a problem that it takes time and effort for estimating the caller, and if the estimation is wrong, a call is lost, and the receiving efficiency is reduced. When the call forwarding device 24 is introduced in this situation, a certain number is given to the radio mobile station 14,
When a call is made to the number, the call is temporarily connected to the call transfer device 24, and the call transfer device performs call transfer to a number which can be currently called of the corresponding radio mobile station 14 registered in advance, thereby estimating the caller. Time can be saved. In FIG. 2, reference numeral 31 denotes a registration table including information on a call transfer destination and the like. Reference numeral 32 denotes a registration control unit 32 for performing registration in the registration table based on a call transfer destination registration request responded by the manual registration correspondence unit 34. Reference numeral 33 denotes a line control unit 33 for performing line control of call transfer by referring to the registration table 31.

FIG. 3 is a diagram showing the configuration of a conventional radio mobile station 14. Reference numeral 41 denotes a visiting mobile communication network detecting unit which detects a visiting mobile communication network by analyzing radio waves received from an antenna 43. Reference numeral 42 denotes the position of the wireless mobile station 14 in the mobile communication network with respect to the mobile communication network when the visited mobile communication network detection unit 41 detects that the wireless mobile station 14 has moved to a different mobile communication network. Is a position registration signal transmitting unit 42 that transmits a signal for registering the position registration signal.

FIG. 4 is a diagram showing a configuration of the registration table 31. 51 is a number γ uniquely assigned to the wireless mobile station 14
52 is a number α used for making and receiving calls on the mobile communication network A18, and 53 is a number β used for making and receiving calls on the mobile communication network B.
The three types of numbers are written in a table in advance in correspondence with each other. 54 is a number used in the mobile communication network in which the wireless mobile station 14 currently exists, that is, the wireless mobile station 1
4 is a flag for selecting a number capable of receiving a call. In the example of FIG. 4, the radio mobile station 14 to which “γ1” is assigned as the number γ51 currently exists in the mobile communication network A18, and the number α52, that is, the corresponding radio mobile station 14 with “α1”.
Indicates that a call can be received. Wireless mobile station 14
The number γ51, which is the only number assigned to the number, is a number of a numbering system independent of the number α52 and the number β53, a free number in the numbering system of the number α52 or the number β53, a number assigned with a prefix to the number α52 or the number β53, and the like. Can be used. The call transfer device 24 and the mobile communication network A18, the mobile communication network B, and the fixed communication network may be directly connected, or may be connected via another network. In this example, the call forwarding device 24 exists outside the fixed communication network 22 and the mobile communication network, but may be present inside the fixed communication network 22 or the mobile communication network.

When the mobile station 14 moves to the mobile communication network A18 and accesses the mobile station 14 with the number γ51 from the fixed communication network to receive the call, the fixed communication network first receives the call. Connect to the transfer device 24. When the incoming call transfer device 24 receives the incoming call with the number γ51, the incoming call transfer device 24 refers to the corresponding row of the registration table 31 and determines the number whose flag 54 is “1” as the incoming call transfer destination. For example, when the flag 54 of the number α52 is “1”, the number α52 is set as the call transfer destination. Based on this information, the line control unit 33 of the call transfer device 24 makes a call connection to the number α52, and the call is call-connected to the line connection device 212. The mobile communication network A18 requested to receive an incoming call with the number α52 acquires the position information of the wireless mobile station 14 in the mobile communication network A18 by referring to the subscriber information DB111, and then, based on this information, An incoming call to the wireless mobile station 14 is performed. Through this series of operations, a call from the fixed communication terminal 23 is connected to the wireless mobile station 14 via the call transfer device 24 and communication is possible.

In this embodiment, an example is shown in which the number γ51 is used to connect from the fixed communication terminal 23 to the call transfer device 24. To the number γ51, and the call transfer device 24 obtains the number γ5 obtained by the aforementioned means.
A method of making an incoming connection to the number α52 using 1 is also conceivable. In addition, although an example of transmission from the fixed communication terminal 23 has been described, in addition to the above, the private branch exchange (P
BX) or a call from another wireless mobile station under the mobile communication network. In this case as well, the call is once received by the wireless mobile station 14 after being connected to the call transfer device 24.

In order to enable the above operation, a number currently accessible to the radio mobile station 14 is assigned to the call transfer device 24.
, And the flag 54 corresponding to the number in the registration table 31 that can access the wireless mobile station 14 must be set to 1. In the conventional example, when the radio mobile station 14 moves to the mobile communication network A and receives radio waves from the radio base station 13,
The visited mobile communication network detecting unit 41 detects that the wireless mobile station 14 has moved to a different mobile communication network. Wireless mobile station 1
4 continuously issues a location registration request to the mobile communication network A18, and upon receiving the registration request, the mobile communication network A18 stores information indicating the location of the wireless mobile station 14 in the mobile communication network A18 in the subscriber information DB 111 according to the request. Register Thereafter, when recognizing that the user of the wireless mobile station 14 has moved to the mobile communication network A 18, the user manually sets up a call path to the call transfer device 24, and sets the communication path via the set communication path. Then, the registration information is transmitted by, for example, a DTMF signal. In the call transfer device 24, the registration information is received by the manual registration correspondence unit 34, the received information is analyzed by the registration control unit 32, and the flag 31 in the registration table is changed.

[0010]

According to the prior art, each time the radio mobile station 14 moves through the mobile communication network, the radio mobile station 1
By performing the registration operation manually on the call transfer device 24 by the user No. 4, it was possible to make a call using the unique number assigned to the wireless mobile station. However, manual registration is required every time the user travels, which increases the user's labor. Further, if the user forgets to register, the incoming call to the wireless mobile station 14 becomes impossible, so that the certainty of the incoming call is reduced. There was a problem.

The present invention is intended to solve such a problem. When the radio mobile station 14 moves to a radio area of a different mobile communication network, the radio mobile station 14 transmits the call to the call transfer device 24.
It is an object of the present invention to automatically register an incoming call destination to enable automatic incoming call connection.

[0012]

According to one aspect of the present invention, there is provided a call transfer apparatus for managing a transfer destination of a call to a wireless mobile station moving between a plurality of mobile communication networks. On the other hand, in the call destination registration method of registering the destination of the wireless mobile station each time the wireless mobile station moves from a communicating mobile communication network to a different mobile communication network, the wireless mobile station differs. Incoming call destination registration method for performing position registration with a mobile communication network that manages a radio area of a moving destination when moving to a mobile communication network, and automatically registering a call transfer destination with the call forwarding device It is in.

In the case where the mobile station 14 moves between a plurality of mobile communication networks, when the mobile station 14 moves to a certain mobile communication network, the mobile station 14 uses its own terminal in the mobile communication network. The number is automatically registered in the call transfer device 24 that provides call transfer means. As a result, the call transfer device 2
When there is an incoming call to the mobile station 4, the call can be transferred to the location where the wireless mobile station 14 exists based on the registered information, and the incoming connection can be established.

The registration can be performed by setting a communication path between the radio mobile station 14 and the apparatus having the call transfer means, or by performing the registration without setting the communication path.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below. FIG. 5 shows an overall configuration diagram of the embodiment. In this example, the radio mobile station 14 moves from the mobile communication network B19 to the mobile communication network A.
18 and the subscriber information D from the radio mobile station 14.
A request for registration of the location information of the wireless mobile station 14 in the mobile communication network A18 is sent to
4 is registered.

FIG. 6 is a diagram showing the configuration of an embodiment of a call transfer device. Reference numeral 36 denotes an automatic registration signal receiving unit that receives automatic registration information from the wireless mobile station 14, and reference numeral 35 denotes a number determination that holds a comparison table indicating which number of the flag 54 of the registration table 31 to change from the automatic registration information. It is a database. In this example, the call transfer device 24 exists outside the mobile communication network, but may be inside the mobile communication network.

FIG. 7 is a diagram showing the configuration of one embodiment of the radio mobile station. Reference numeral 44 denotes a transfer registration signal transmitting section for transmitting automatic registration information to the call transfer device 24.

FIG. 8 is a diagram showing the configuration of an embodiment of the number determination database. In the present embodiment, when a number indicating a network is transmitted as registration information, the number is α or β.
Is used to determine which of

The operation of the first embodiment of the present invention will now be described with reference to FIG.
This will be described with reference to FIG. At the initial stage, the registration table 31 has the flag 54 of the number β53 set to “1”. When the wireless mobile station 14 moves to the mobile communication network A18 (b1) and receives a radio wave from the wireless base station 13 (b2), the visited mobile communication network detection unit 41 causes the wireless mobile station 14 to switch to a different mobile communication network. The movement is detected (b3). The location registration signal transmitting section 42 in the wireless mobile station 14 continues to operate the mobile communication network A18.
(B4), and upon receiving the registration request, the mobile communication network A18 stores information indicating the position of the wireless mobile station 14 in the mobile communication network A18 in the subscriber information DB 111 according to the request (b7). Register (b8). The detection means and the registration means for the mobile communication network A18 shown here are existing technologies. The wireless mobile station 14 continuously transmits registration information from the transfer registration signal transmitting section 44 to the call transfer apparatus 24 (b5), and the automatic registration signal receiving section in the call transfer apparatus 24 that has received the registration information (b10). Then, this information is sent to the transfer registration control unit 37, and the flag 54 of the number α52 in the registration table 31 is set to 1 and the flag 54 of the number β53 is set to 0 according to the instruction of the transfer registration control unit 37 (b11).
Here, the registration information transmitted from the wireless mobile station 14 to the call transfer device 24 and the transmission method thereof include the mobile communication network A
A number α5 which is a number for identifying the radio mobile station 14 within
2 may be transmitted as a calling number transmitted at the time of a call setting signal, or a method of transmitting a number indicating the mobile communication network A18 using a “registration” message for performing call setting without performing communication path setting. . When the number indicating the mobile communication network 18 is used, the transfer registration control unit 37 extracts the name of the mobile communication network by referring to the “number indicating the network” of the number determination database 35 shown in FIG. 31 will be changed. The number α5 for identifying the wireless mobile station 14
Also when using No. 2, the registration table 31 is changed after extracting the name of the mobile communication network with reference to the "number used in the mobile communication network" of the number determination database 35.

Next, the operation of the second embodiment of the invention will be described with reference to FIG.
This will be described with reference to FIG. At the initial stage, the registration table 31 has the flag 54 of the number β53 set to “1”. When the wireless mobile station 14 moves to the mobile communication network A18 (c1) and receives a radio wave from the wireless mobile station 14 (c2), the visited mobile communication network detection unit 41 causes the wireless mobile station 14 to switch to a different mobile communication network. The movement is detected (c3). The location registration signal transmitting section 42 in the wireless mobile station 14 continues to operate the mobile communication network A18.
(C4), and upon receiving the registration request, the mobile communication network A18 stores information indicating the position of the wireless mobile station 14 in the mobile communication network A18 in the subscriber information DB 111 in accordance with the request (c9). Register (c10). The detection means and the registration means for the mobile communication network A18 shown here are existing technologies. The transfer registration signal transmitting section 44 in the wireless mobile station 14 continues to make a call to the call transfer device 24 to set a communication path (c5). When the communication path is set, the registration information is transmitted using the path. Registration is performed by transmitting (c6). The registration information transmitted here is the mobile communication network A1.
8, a number α52 which is a number for identifying the wireless mobile station 14.
Information transfer is performed using a DTMF signal or a modem signal, using a network number indicating the mobile communication network A18 or the like. This information is registered in the transfer registration signal transmitting unit 44 in advance. Wireless mobile station 1
4 (c12), and the automatic registration signal receiving unit 36 of the call transfer device 24 that has received the registration information using the route (c13) sends this information to the transfer registration control unit 37. Then, the transfer registration control unit 37 sets the flag 54 of the number α52 in the registration table 31 to 1 and sets the flag 54 of the number β53 to 0 in the same operation as in the first embodiment (c14). When the registration is completed, the radio mobile station 14
Alternatively, the communication path is disconnected by the call transfer device 24 (c7, c15).

[0021]

According to the present invention, it is possible to automate registration of a call transfer device from a radio mobile station 14 moving between a plurality of mobile communication networks. As a result, the labor of registration is greatly reduced, and since the registration can be performed reliably, the incoming call rate can be improved.

[Brief description of the drawings]

FIG. 1 is a diagram showing an overall configuration of the present invention.

FIG. 2 is a diagram showing a configuration of a conventional call forwarding device.

FIG. 3 is a diagram illustrating a configuration of a conventional wireless mobile station.

FIG. 4 is a diagram showing a configuration of a registration table.

FIG. 5 is a diagram showing an overall configuration of an embodiment of the present invention.

FIG. 6 is a diagram showing a configuration of an embodiment of a call forwarding device.

FIG. 7 is a diagram illustrating a configuration of an embodiment of a wireless base station.

FIG. 8 is a diagram showing a configuration of an embodiment of a number determination database.

FIG. 9 is a flowchart showing the operation of the first embodiment of the present invention.

FIG. 10 is a flowchart showing the operation of the second embodiment of the present invention.

[Description of Signs] 14 Wireless mobile station 18 Mobile communication network A 19 Mobile communication network B 22 Fixed communication network 24 Call transfer device

Claims (2)

[Claims] 1. A call transfer device for managing a transfer destination of an incoming call to a wireless mobile station moving between a plurality of mobile communication networks, wherein the wireless mobile station is different from a mobile communication network in communication. A destination connection registration method for registering a destination of a wireless mobile station each time the mobile mobile station moves to a communication network, the mobile communication managing a destination wireless area when the wireless mobile station moves to a different mobile communication network. A method for registering an incoming call destination, wherein the location is registered in a network, and a call transfer destination is automatically registered in the call forwarding device. 2. A plurality of mobile communication networks having one or a plurality of wireless mobile stations and one or a plurality of wireless base stations, and a wireless mobile station connected to each of the mobile communication networks and moving through the plurality of mobile communication networks. In an incoming call destination registration system comprising a call transfer device for managing a transfer destination of an incoming call to a station, when the wireless mobile station moves to a different mobile communication network, the wireless mobile station Means for performing location registration with respect to a mobile communication network and automatically registering a call transfer destination with respect to the call transfer device, wherein the call transfer device automatically registers a call transfer destination from the wireless mobile station. An incoming call destination registration system comprising: means for receiving registration; and means for changing a call transfer destination.