WO2009139233A1

WO2009139233A1 - Information communication system, subscriber information management device, subscriber information management method, and program

Info

Publication number: WO2009139233A1
Application number: PCT/JP2009/056814
Authority: WO
Inventors: 理裕長澤; 恵吾村上; 繁月足
Original assignee: 日本電気株式会社
Priority date: 2008-05-15
Filing date: 2009-04-01
Publication date: 2009-11-19
Also published as: JP5125757B2; JP2009278435A

Abstract

Subscriber information in which subscriber identifying information for identifying a subscriber terminal (101) capable of being connected to a plurality of different networks from each other is associated with the content of the service provided to the subscriber terminal (101) is stored. System information indicating whether an HSS capable of updating the subscriber information out of an HSS (102-1) and an HSS (102-2) provided in two systems, respectively, is either the HSS (102-1) or the HSS (102-2) and the subscriber identifying information are stored in association with each other. When an update request signal requesting the update of the subscriber information is transmitted from the subscriber terminal (101), the subscriber information is updated if the system information which is stored in association with the subscriber identifying information of the subscriber terminal (101) indicates the system of the applicable HSS.

Description

Information communication system, subscriber information management apparatus, subscriber information management method and program

The present invention relates to an information communication system, a subscriber information management apparatus, a subscriber information management method, and a program for performing communication with a subscriber terminal via a plurality of different networks.

In recent years, there has been considered an information communication system that communicates with a subscriber terminal via a plurality of different networks such as a circuit switching network and an IP network (for example, the document “3GPP TS 23.002 V6.10.0 (2005-12) "). In such a system, when a location change occurs between a circuit-switched network and an IP network in a subscriber terminal that can be used in both networks, the connected network is changed.

FIG. 1 and FIG. 2 are diagrams illustrating an example of an information communication system in which a subscriber terminal performs communication via a circuit switching network and an IP network. The information communication system shown in FIG. 1 and FIG. 2 performs redundancy management by the mated pair method.

This mated pair method is a redundant configuration with redundant management servers and communication devices, so that when a failure occurs in one system, the service provided by one system is changed to the other that is the mate system. This is a method provided by the system (other system).

1 and 2 are provided with HSSs 1002-1 and 1002-2, SLFs 1003-1 and 1003-2, and STPs 1004-1 and 1004-2. Further, the subscriber terminal 1001 communicates with the SLFs 1003-1 and 1003-2 or the STPs 1004-1 and 1004-2.

The HSSs 1002-1 and 1002-2 provide subscriber identification information for identifying the subscriber terminals 1001 connected to the SLFs 1003-1 and 1003-2 or STPs 1004-1 and 1004-2, and services provided to the subscriber terminals 1001. The subscriber management server stores the subscriber information and the contents corresponding to the subscriber terminal 1001 and provides the service corresponding to the subscriber terminal 1001.

When the subscriber terminal 1001 exists in the IP network, the SLFs 1003-1 and 1003-2 are based on the subscriber identification information uniquely given to the subscriber terminal 1001 transmitted from the subscriber terminal 1001. The HSSs 1002-1 and 1002-2 to be accessed (connected) by the terminal 1001 are specified. In addition, a Diameter signal including information for updating the information of the subscriber terminal 1001 transmitted from the subscriber terminal 1001 is transmitted to the identified HSSs 1002-1 and 1002-2.

The STPs 1004-1 and 1004-2 are the HSSs 1002 that the subscriber terminal 1001 accesses (connects) based on the subscriber identification information transmitted from the subscriber terminal 1001 when the subscriber terminal 1001 exists in the circuit switching network. -1,1002-2 is specified. In addition, the MAP signal transmitted from the subscriber terminal 1001 and including information for updating the information of the subscriber terminal 1001 is transmitted to the identified HSSs 1002-1 and 1002-2.

In such a system, one subscriber is required to update the information registered in the HSSs 1002-1 and 1002-2 from both the circuit switching network and the IP network.

Further, in a system having a dual configuration of an active device and a standby device, such as the mated pair method, by transferring data stored in the storage device of the active device to the storage device of the standby device, A technique for synchronizing data with each other has been considered (see, for example, Japanese Patent Publication No. 2005-327015).

Here, an HSS that updates information based on a MAP signal transmitted from the subscriber terminal 1001 when the subscriber terminal 1001 exists in the circuit switching network, and a subscriber when the subscriber terminal 1001 exists in the IP network. It is conceivable that the HSS that updates information based on the Diameter signal transmitted from the terminal 1001 is the same or different. That is, since the STPs 1004-1 and 1004-2 and the SLFs 1003-1 and 1003-2 are not necessarily linked to each other, the HSS specified by the STPs 1004-1 and 1004-2 and the SLFs 1003-1 and 1003- The HSS specified by 2 may be the same or different.

As shown in FIG. 1, when the HSS for updating information by the MAP signal and Diameter signal is the same (HSS 1002-1), the subscriber terminal 1001 updates the information in the circuit switching network, and then the subscriber Even if the subscriber terminal 1001 moves to the IP network and updates information in the IP network due to the change in the area of the terminal 1001, the information registered in the same HSS 1002-1 is updated, so no problem occurs. .

However, as shown in FIG. 2, when the HSS that performs information update using the MAP signal and Diameter signal is different (HSS 1002-1 and HSS 1002-2), the subscriber terminal 1001 performs information update in the circuit switching network. After that, when the subscriber terminal 1001 moves to the IP network and updates information in the IP network due to the change in the area of the subscriber terminal 1001, the information registered in the different HSSs 1002-1 and 1002-2 is changed. Since each update is performed, there is a possibility that a difference occurs in the registered information between the HSS 1002-1 and the HSS 1002-2.

In order to prevent this difference from occurring, synchronization processing is performed between the HSS 1002-1 and the HSS 1002-2 so that no difference occurs in the registered information.

FIG. 3 is a diagram showing an example of synchronization processing between the HSS 1002-1 and the HSS 1002-2 shown in FIG. 1 and FIG.

As shown in FIG. 3, copying processing of information registered with each other is performed between the HSS 1002-1 and the HSS 1002-2 at a constant cycle (cycle T). At this time, which HSS is used as a master is arbitrary, and may be set for each subscriber terminal.

If there is a request for information update from the subscriber terminal 1001 to the HSS 1002-1 using the MAP signal, the registration information is updated (changed) in the HSS 1002-1 in step 101. In this state, there is a difference in registration information between the HSS 1002-1 and the HSS 1002-2.

After that, the registration information becomes the same between the HSS 1002-1 and the HSS 1002-2 by the copy process. After this copying process, if there is an information update request from the subscriber terminal 1001 to the HSS 1002-2 using the Diameter signal due to a change in the area of the subscriber terminal 1001, the registration information is updated in the HSS 1002-2 in step 102. Done. At this time, the information registered in the HSS 1002-2 is up-to-date by the immediately preceding copy process, so no problem occurs.

FIG. 4 is a diagram showing another example of synchronization processing between the HSS 1002-1 and the HSS 1002-2 shown in FIGS.

As shown in FIG. 4, similar to the one shown in FIG. 3, the information registered between the HSS 1002-1 and the HSS 1002-2 is copied at a constant cycle (cycle T). At this time, which HSS is used as a master is arbitrary, and may be set for each subscriber terminal.

If there is a request for information update from the subscriber terminal 1001 to the HSS 1002-1 using the MAP signal, the registration information is updated in the HSS 1002-1 in step 111. In this state, there is a difference in registration information between the HSS 1002-1 and the HSS 1002-2.

After that, before the copy process is performed, if there is a request for information update from the subscriber terminal 1001 to the HSS 1002-2 by using the Diameter signal due to the change in the area of the subscriber terminal 1001, the HSS 1002-2 in step 112 Registration information is updated. At this time, since copy processing is not performed, there is a difference in registration information between the HSS 1002-1 and the HSS 1002-2. That is, the information registered in the HSS 1002-2 is not the latest. For this reason, when the copy process is performed between the HSS 1002-1 and the HSS 1002-2 after the registration information is updated in Step 112, at least one of the update performed in Step 111 and the update performed in Step 112 is performed. There is a problem that the update of is not reflected. That is, in order to accurately update the registered subscriber information, it is necessary for one subscriber to update the subscriber information in the same system.

An object of the present invention is to provide an information communication system, a subscriber information management device, a subscriber information management method, and a program that solve the above-described problems.

In order to achieve the above object, the present invention provides:
Mobile communication terminals connectable to a plurality of networks different from each other, subscriber information for associating subscriber identification information for identifying the mobile communication terminals and service contents provided to the mobile communication terminals, respectively Storing the subscriber information management device provided in each of the two systems, each of the plurality of networks and the two subscriber information management devices, and the subscriber information transmitted from the mobile communication terminal. An information communication system comprising a plurality of proxy nodes that transfer an update request signal to one of the two subscriber information management devices based on subscriber identification information included in an update request signal for requesting an update In
The subscriber information management device includes system information indicating which subscriber information management device capable of updating the subscriber information is a subscriber information management device provided in each of the two systems, and the subscriber identification. Information is stored in association with each other, and when the update request signal is transmitted from the mobile communication terminal, the system information stored in association with the subscriber identification information of the mobile communication terminal is the subscriber When the information management apparatus system is shown, the subscriber information is updated.

A subscriber information management apparatus for storing subscriber information in which subscriber identification information for identifying a mobile communication terminal and contents of a service provided to the mobile communication terminal are associated with each other,
System information indicating whether the subscriber information management device capable of updating the subscriber information is the subscriber information management device or a subscriber information management device connected to the subscriber information management device, and the subscription An update system information storage unit that stores the person identification information in association with each other;
When an update request signal for requesting update of the subscriber information is transmitted from the mobile communication terminal, the update communication information is stored in the update system information storage unit in association with subscriber identification information of the mobile communication terminal When the system information indicates the system of the subscriber information management apparatus, the system information management unit updates the stored subscriber information.

Further, there is provided a subscriber information management method in a subscriber information management apparatus for storing subscriber information in which subscriber identification information for identifying a mobile communication terminal is associated with contents of a service provided to the mobile communication terminal. ,
System information indicating whether the subscriber information management device capable of updating the subscriber information is the subscriber information management device or a subscriber information management device connected to the subscriber information management device, and the subscription A process of storing the person identification information in association with each other,
When an update request signal for updating the subscriber information is transmitted from the mobile communication terminal, the system information stored in association with the subscriber identification information of the mobile communication terminal is the subscriber information. In the case of indicating a system of the management apparatus, it includes a process of updating the stored subscriber information.

In addition, a program to be executed by a subscriber information management apparatus that stores subscriber information in which subscriber identification information for identifying a mobile communication terminal and contents of a service provided to the mobile communication terminal are associated with each other,
System information indicating whether the subscriber information management device capable of updating the subscriber information is the subscriber information management device or a subscriber information management device connected to the subscriber information management device, and the subscription Storing the person identification information in association with each other;
When an update request signal for updating the subscriber information is transmitted from the mobile communication terminal, the system information stored in association with the subscriber identification information of the mobile communication terminal is the subscriber information. In the case of indicating a system of the management apparatus, a procedure for updating the stored subscriber information is executed.

As described above, in the present invention, a subscriber in which subscriber identification information for identifying mobile communication terminals connectable to a plurality of different networks is associated with service contents provided to the mobile communication terminals. Each of the subscriber information management devices provided for each of the two systems has a subscriber information management device provided for each of the two systems. Is stored in association with subscriber identification information, and when an update request signal for requesting update of subscriber information is transmitted from the mobile communication terminal, the subscriber identification information of the mobile communication terminal When the system information stored in association with the system information indicates the system of the subscriber information management apparatus, the subscriber information is updated, so that the subscriber information can be updated accurately.

It is a figure which shows an example of the information communication system with which a subscriber terminal communicates via a circuit switching network and an IP network. It is a figure which shows an example of the information communication system with which a subscriber terminal communicates via a circuit switching network and an IP network. It is a figure which shows an example of the synchronous process between HSS shown in FIG. 1 and FIG. It is a figure which shows the other example of the synchronous process between HSS shown in FIG. 1 and FIG. It is a figure which shows one Embodiment of the information communication system of this invention. It is a figure which shows an example of the internal structure of HSS shown in FIG. It is a figure which shows an example of the update type | system | group information memorize | stored in the update type | system | group information storage part shown in FIG. It is a flowchart for demonstrating the subscriber information management method in this form. FIG. 11 is a sequence diagram for explaining processing for switching an HSS update system when an update system switch instruction is received. FIG. 10 is a sequence diagram for explaining update system switching processing when the HSS detects the necessity of blockage. It is a sequence diagram for demonstrating the switch-back method when obstruction | occlusion is cancelled | released after obstruction | occlusion of HSS.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 5 is a diagram showing an embodiment of the information communication system of the present invention.

In this embodiment, as shown in FIG. 5, HSSs 102-1 and 102-2, SLFs 103-1 and 103-2, and STPs 104-1 and 104-2 are provided. In addition, the subscriber terminal 101 communicates with the SLFs 103-1 and 103-2 or the STPs 104-1 and 104-2.

The subscriber terminal 101 is a mobile communication terminal that can be connected to both an IP network and a circuit switching network.

The HSSs 102-1 and 102-2 are subscriber identification information (including authentication information) for identifying the subscriber terminal 101 connected to the SLFs 103-1 and 103-2 or the STPs 104-1 and 104-2 and the subscribers. It is a subscriber information management device (Home Subscriber Server) that stores subscriber information with service information provided to the terminal 101 and provides a service corresponding to the subscriber terminal 101. The HSSs 102-1 and 102-2 are provided with an HSS function for performing the above-described processing in an IP network and an HLR (Home Location Register) function for performing the above-described processing in a circuit-switched network. Here, the HSS 102-1 and the HSS 102-2 have a redundant configuration based on the mated pair method. Here, the HSS 102-1 is the A system and the HSS 102-2 is the B system.

FIG. 6 is a diagram showing an example of the internal configuration of the HSS 102-1 shown in FIG.

As shown in FIG. 6, the HSS 102-1 shown in FIG. 5 includes an IP network interface unit 201, a circuit switched network interface unit 202, a maintenance interface unit 203, another system interface unit 204, and a subscriber information storage unit. 205, an update system information storage unit 206, and an information management unit 207 are provided.

The IP network interface unit 201 performs communication with the SLFs 103-1 and 103-2 connected to the IP network.

The circuit switching network interface unit 202 communicates with the STPs 104-1 and 104-2 connected to the circuit switching network.

The maintenance interface unit 203 communicates with a maintenance device (not shown) such as a maintenance terminal that performs maintenance of the HSS 102-1.

The other system interface unit 204 communicates with the HSS 102-2 which is another system HSS.

The subscriber information storage unit 205 stores subscriber information including subscriber identification information (including authentication information) for identifying the subscriber terminal 101 and service information provided to the subscriber terminal 101.

The update system information storage unit 206 stores information indicating a system in which the subscriber information stored in the subscriber information storage unit 205 can be updated.

FIG. 7 is a diagram showing an example of the update system information stored in the update system information storage unit 206 shown in FIG.

As shown in FIG. 7, the update system information storage unit 206 shown in FIG. 6 stores the MIN number band information indicating the number band of the subscriber terminal 101 and the subscriber information of the subscriber terminal corresponding to the MIN number band. Update system information associated with the system information of the HSSs 102-1 and 102-2 to be updated is stored.

Here, the MIN number band is for dividing the subscriber identification information into an arbitrary group. For example, a subscriber whose subscriber identification information is “10001xxxxxxx” is designated as a MIN number band “10001”. Assigned to the group.

For example, the MIN number band “10001” and the update system “B” are stored in association with each other. This indicates that the HSS that updates the information of the subscriber whose MIN number band is “10001” is the B-system HSS, that is, the HSS 102-2. Further, the MIN number band “10002” and the update system “A” are stored in association with each other. This indicates that the HSS that updates the information of the subscribers whose MIN number band is “10002” is the A-system HSS, that is, the HSS 102-1. Further, the MIN number band “10003” and the update system “A” are stored in association with each other. This indicates that the HSS that updates the information of the subscriber whose MIN number band is “10003” is the A-system HSS, that is, the HSS 102-1.

Note that the MIN number band is not used, and each piece of subscriber identification information and system information may be stored in association with each other.

When the information management unit 207 receives an instruction to switch the update system from the STPs 104-1 and 104-2 via the circuit switching network interface unit 202, the information management unit 207 updates the update system information stored in the update system information storage unit 206. In addition, when an update system switching request signal for requesting switching of the update system is received from the HSS 102-2 that is the other system HSS, the update stored in the update system information storage unit 206 based on the update system switching request signal Update system information. When a switch-back command for switching back the update system is received from a maintenance device such as a maintenance terminal via the maintenance interface unit 203, the update system information stored in the update system information storage unit 206 is switched back. Further, the information management unit 207 updates the subscriber information stored in the subscriber information storage unit 205 based on the update system information stored in the update system information storage unit 206. If necessary, the subscriber information stored in the subscriber information storage unit 205 is read out and transmitted to the HSS 102-2 which is the other system HSS via the other system interface unit 204.

Note that the internal configuration of the HSS 102-2 is the same as that of the HSS 102-1 shown in FIG.

The SLFs 103-1 and 103-2 have a function of Diameter Proxy Agent and are IP proxy nodes for proxying Diameter messages transmitted from Diameter Client to HSSs 102-1 and 102-2 in which subscribers are accommodated. It is. When the subscriber terminal 101 exists in the IP network, the SLFs 103-1 and 103-2 are based on the subscriber identification information given to the subscriber terminal 101 transmitted from the subscriber terminal 101. The HSSs 102-1 and 102-2 to be accessed (connected) by the terminal 101 are specified. In addition, a Diameter signal including information for updating information of the subscriber terminal 101 transmitted from the subscriber terminal 101 is transmitted to the identified HSSs 102-1 and 102-2. Here, the Diameter signal is a signal for operating subscriber information between the HSSs 102-1 and 102-2 and the SLFs 103-1 and 103-2 in the IP network.

The STPs 104-1 and 104-2 are circuit-switched network proxy nodes for proxying the MAP signal transmitted from the subscriber terminal 101 to the HSSs 102-1 and 102-2 in the circuit-switched network. When the subscriber terminal 101 exists in the circuit switching network, the STPs 104-1 and 104-2 are based on the subscriber identification information uniquely given to the subscriber terminal 101 transmitted from the subscriber terminal 101. HSSs 102-1 and 102-2 to be accessed (connected) by the user terminal 101 are identified. In addition, the MAP signal transmitted from the subscriber terminal 101 and including information for updating the information of the subscriber terminal 101 is transmitted to the identified HSSs 102-1 and 102-2. Here, the MAP signal is a signal for operating subscriber information between the HSSs 102-1 and 102-2 and the STPs 104-1 and 104-2 in the circuit switching network.

In this embodiment, one subscriber requests an update of information registered in the HSSs 102-1 and 102-2 from both the circuit switching network and the IP network.

Hereinafter, the subscriber information management method in this embodiment will be described.

FIG. 8 is a flowchart for explaining the subscriber information management method in this embodiment.

First, a request for updating the subscriber information registered in the subscriber information storage unit 205 of the HSS 102-1 from the subscriber terminal 101 via the STPs 104-1 and 104-2 or the SLFs 103-1 and 103-2. When the update request signal is received by the circuit switching network interface unit 202 or the IP network interface unit 201 in step 1, the subscriber identification information included in the update request signal is extracted in step 2 by the information management unit 207. The

Here, when the update request signal is transmitted from the subscriber terminal 101 via the STPs 104-1 and 104-2, the update request signal is transmitted using the MAP signal. In addition, when transmitted from the subscriber terminal 101 via the SLFs 103-1 and 103-2, it is transmitted using a Diameter signal.

The information management unit 207 determines which MIN number band of the update system information shown in FIG. 7 the subscriber identification information extracted in step 2 belongs to. Then, in step 3, the information management unit 207 determines whether the update system corresponding to the determined MIN number band is the own system. Specifically, when the update system corresponding to the MIN number band is the “A” system, the HSS 102-1 determines that the update system is the own system. If the update system corresponding to the MIN number band is the “B” system, it is determined that the update system is another system for the HSS 102-1.

When it is determined in step 3 that the update system is the own system, the subscriber information registered in the subscriber information storage unit 206 is updated by the information management unit 207 in step 4 in response to the update request signal. .

On the other hand, if it is determined in step 3 that the update system is not the own system, that is, another system, whether the update request signal has been transmitted using the MAP signal or whether it has been transmitted using the Diameter signal. Judged in step 5. This may be due to recognizing the signal format of the update request signal. Further, when the interface unit that has received the update request signal is the circuit switching network interface unit 202, it is determined that the interface unit that has received the update request signal has been transmitted using the MAP signal. In the case of the interface unit 201, it may be determined that transmission has been performed using a Diameter signal.

When it is determined that the update request signal has been transmitted using the MAP signal, the update system information stored in the update system information storage unit 205 is updated in step 6. Specifically, in this case, since the update system corresponding to the MIN number band of the subscriber identification information included in the update request signal is stored as the “B” system that is the other system, the self-system “A” It is updated to "".

Subsequently, an update system switching request signal indicating that the update system corresponding to the MIN number band has been updated from the “B” system to the “A” system is sent from the information management unit 207 to the other system interface unit 204 in step 7. To the other system HSS 102-2. In step 4, the subscriber information registered in the subscriber information storage unit 206 is updated by the information management unit 207 in response to the update request signal.

If it is determined that the update request signal has been transmitted using the Diameter signal, an error signal is transmitted from the information management unit 207 to the SLFs 103-1 and 103-2 via the IP network interface unit 201 in step 8. Is done. This error signal may be any signal that indicates that the update process cannot be performed by the HSS 102-1 with respect to the transmitted update request signal. For example, a redirect signal or a unique signal may be used. Further, it may include an instruction that prompts the SLFs 103-1 and 103-2 to transmit the update request signal to the HSS 102-2 that is the “B” system.

Next, the processing of the HSSs 102-1 and 102-2 when receiving an update system switching instruction from the STPs 104-1 and 104-2 will be described.

FIG. 9 is a sequence diagram for explaining the process of switching the update system of the HSSs 102-1 and 102-2 when receiving an update system switch instruction.

First, when the HSS 102-1 instructs the update system switching from the STPs 104-1 and 104-2 at step 11, the system information stored in the update system information storage unit 206 by the information management unit 207 is transferred to step 12. Can be switched.

Here, in order to instruct the update system switching from the STPs 104-1 and 104-2 to the HSS 102-1, the MAP signal includes information indicating an instruction to switch the update system, and the MAP signal includes the STPs 104-1 and 104- 2 may be transmitted to HSS 102-1. Further, an update system switching instruction signal indicating an instruction for switching an update system set in advance may be transmitted from the STPs 104-1 and 104-2 to the HSS 102-1. This update system switching instruction includes information on the MIN number band for switching the update system. Moreover, the update system information may be included together with the MIN number band. Further, the update system information may include information indicating which system is updated from which system.

Then, the update system switching instruction transmitted from the STPs 104-1 and 104-2 is received by the circuit switching network interface unit 202, and the update system stored in the update system information storage unit 206 is switched by the information management unit 207. It is done. For example, when the update system with the MIN number band “10001” is the “B” system, the update system is switched to the “A” system.

Thereafter, in step 13, an update system switching request signal is transmitted from the information management unit 207 to the other system HSS 102-2 via the other system interface unit 204. This update system switching request signal is a signal that can be recognized by the HSS 102-2 as a request to switch the update system stored in the update system information storage unit 206 of the HSS 102-2. The update system switching request signal includes information indicating the MIN number band for which the update system has been switched in the HSS 102-1. Moreover, the update system information may be included together with the MIN number band. Further, the update system information may include information indicating which system is updated from which system.

Then, the system information stored in the updated system information storage unit 206 is switched in step 14 by the information management unit 207 of the HSS 102-2. Specifically, the update system switching request signal transmitted from the HSS 102-1 is received by the other system interface unit 204 of the HSS 102-2 and stored in the update system information storage unit 206 by the information management unit 207 of the HSS 102-2. The updated update system is switched. For example, when the update system with the MIN number band “10001” is the “B” system, the update system is switched to the “A” system.

Note that the update system switching is not instructed from the STPs 104-1 and 104-2, but may be instructed from the maintenance device. In this case, the update interface switching instruction signal transmitted from the maintenance device is received by the maintenance interface unit 203, and the above-described processing is performed by the information management unit 207.

As described above, when the HSS 102-1 receives an instruction to switch the update system, the update system stored in the update system information storage unit 206 of the HSS 102-1 that is the local system is switched. At the same time, an instruction to switch the update system stored in the update system information storage unit 206 of the HSS 102-2 is given to the other system HSS 102-2. Then, the update system stored in the update system information storage unit 206 of the HSS 102-2 is switched in the HSS 102-2. As a result, the update system information stored in the respective update system information storage units 206 can be matched between the HSS 102-1 and the HSS 102-2.

FIG. 10 is a sequence diagram for explaining update system switching processing when the HSS 102-1 detects the necessity of blockage.

When the necessity of blockage is detected in the HSS 102-1 in step 21, the block of the HSS 102-1 is notified from the HSS 102-1 to the SLFs 103-1 and 103-2 in step 22. Here, the necessity of blocking in the HSS 102-1 may be detected as long as the HSS 102-1 detects that the subscriber information cannot be updated. For example, it may be detected that access from the information management unit 207 to the subscriber information storage unit 205 or the update system information storage unit 206 becomes impossible. That is, a failure detection function that is generally performed may be used to detect that a failure has occurred in a part related to the subscriber information update process. In addition, the notification of blockage from the HSS 102-1 to the SLFs 103-1 and 103-2 indicates that a signal that allows the SLFs 103-1 and 103-2 to recognize that the subscriber information cannot be updated in the HSS 102-1 is HSS 102- 1 may be transmitted. For example, it may be a signal DPR indicating a broken link of a Diameter signal defined in RFC3588.

Also, in step 23, the HSS 102-1 is notified from the HSS 102-1 to the STPs 104-1 and 104-2. Here, the notification of blockage from the HSS 102-1 to the STPs 104-1 and 104-2 indicates that the signal that can be recognized by the STPs 104-1 and 104-2 that the subscriber information in the HSS 102-1 cannot be updated is HSS 102-1. It is sufficient that it is transmitted from -1. For example, no. 7 may be a signal SSP indicating transmission disapproval defined in the protocol No. 7.

Further, in step 24, the HSS 102-1 is notified from the HSS 102-1 to the HSS 102-2. Here, the notification of blocking from the HSS 102-1 to the HSS 102-2 is a signal transmitted from the HSS 102-1 that allows the HSS 102-2 to recognize that the subscriber information cannot be updated in the HSS 102-1. I just need it.

Then, in the HSS 102-2, the system information stored in the updated system information storage unit 206 is switched in step 25 by the information management unit 207 of the HSS 102-2. Specifically, the signal indicating the notification of blockade transmitted from the HSS 102-1 is received by the other system interface unit 204 of the HSS 102-2, and the information management unit 207 of the HSS 102-2 stores it in the updated system information storage unit 206. The stored update system is switched. At this time, all the update systems stored in the update system information storage unit 206 are switched to the “B” system.

Further, when the information management unit 207 of the HSS 102-1 can access the update system information storage unit 206, the update system information stored in the update system information storage unit 206 by the information management unit 207 of the HSS 102-1 is stored. Are switched at step 26. At this time, all the update systems stored in the update system information storage unit 206 are switched to the “B” system.

As described above, when the necessity of blockage is detected in the HSS 102-1, the block of the HSS 102-1 is notified to the SLFs 103-1 and 103-2 and the STPs 104-1 and 104-2. At the same time, the HSS 102-1 that is the other system is notified of the blocking of the HSS 102-1. Then, all the update systems stored in the update system information storage unit 206 of the HSS 102-2 are switched to the HSS 102-2 system in the HSS 102-2. As a result, it is possible to prevent the HSS 102-1 which is a blocked system from being requested to update subscriber information from the SLFs 103-1 and 103-2 and the STPs 104-1 and 104-2.

Also, if the HSS 102-1 cannot notify the SLFs 103-1 and 103-2 of the HSS 102-1 blockage, there is a possibility that the SLFs 103-1 and 103-2 may request to update subscriber information. However, in order to establish a Diameter session between the SLF 103-1, 103-2 and the HSS 102-1, a periodic signal from the SLF 103-1, 103-2 to the HSS 102-1 (for example, CER: Capability Exchange Request) Is transmitted, and the response signal (for example, CEA: Capability Exchange Answer) is not transmitted from the HSS 102-1 to the SLF 103-1, 103-2, so that the subscriber information cannot be updated by the HSS 102-1 in the SLF 103- 1, 103-2.

If the HSS 102-1 cannot notify the STPs 104-1 and 104-2 of the blocking of the HSS 102-1, there is a possibility that the STPs 104-1 and 104-2 may request to update subscriber information. In that case, by transmitting the error signal described above from the HSS 102-1, it is possible for the STPs 104-1 and 104-2 to recognize that the subscriber information cannot be updated by the HSS 102-1.

Hereinafter, a description will be given of a switch back method when the block is released after the block of the HSS 102-1.

FIG. 11 is a sequence diagram for explaining a switch-back method when the blocking is released after the blocking of the HSS 102-1.

When the shutdown release command is received in the HSS 102-1 being blocked in step 31, the SLF 103 is transmitted in step 32 by a signal for establishing a Diameter session periodically transmitted from the SLFs 103-1 and 103-2. -1, 103-2 and HSS 102-1 automatically establish a Diameter session. Here, the shutdown release command received by the HSS 102-1 being blocked is transmitted from the maintenance device and recognized by the information management unit 207 and the IP network interface unit 201 via the maintenance interface unit 203. There may be. When the blocking cancellation command is recognized by the IP network interface unit 201, a response signal (for example, CEA) of a signal (for example, CER) for establishing a Diameter session is transmitted to the SLFs 103-1, 103-2. As a result, a Diameter session may be automatically established between the SLFs 103-1 and 103-2 and the HSS 102-1.

Thereafter, when a switchback command is received in the HSS 102-1 in step 33, a switchback notification signal is transmitted from the circuit switched network interface unit 202 of the HSS 102-1 to the STPs 104-1 and 104-2 in step 34. Here, the switchback command received by the HSS 102-1 may be transmitted from the maintenance device and recognized by the information management unit 207 via the maintenance interface unit 203. In addition, the switchback notification signal transmitted from the circuit switching network interface unit 202 to the STPs 104-1 and 104-2 may be recognized by the STPs 104-1 and 104-2 that the HSS 102-1 is released from being blocked. Any signal can be used.

Also, in step 35, a switchback notification signal is transmitted from the other system interface unit 204 of the HSS 102-1 to the other system HSS 102-2. Here, the switchback notification signal transmitted from the other system interface unit 204 is a request to return the update system information stored in the update system information storage unit 206 of the HSS 102-2 to the initial value (default value). As long as the signal can be recognized by the HSS 102-2.

Then, the update system information stored in the update system information storage unit 206 of the HSS 102-2 is returned to the initial value (default value) in step 36 by the information management unit 207 of the HSS 102-2. The update system information may be updated to a value set from the maintenance device instead of the initial value. For example, while the HSS 102-1 is closed, the update systems stored in the update system information storage unit 206 of the HSS 102-2 are all “B” systems. Returned to

If all the update systems stored in the update system information storage unit 206 of the HSS 102-1 are in the “B” system due to the blockage of the HSS 102-1, the update system is changed to the information management unit 207 in step 37. Is returned to the initial value.

As described above, even in the case where the devices duplicated in the two systems are requested to update the subscriber information from different networks to different systems, the information registered in each device is different from each other. Can be prevented.

Note that the processing of the above-described HSSs 102-1 and 102-2 may be performed by a logic circuit manufactured according to the purpose. Also, a program describing the processing contents is recorded on a recording medium readable by the HSS 102-1 and 102-2, and the program recorded on the recording medium is read by the HSS 102-1 and 102-2 and executed. It may be. Recording media that can be read by the HSS 102-1 and 102-2 include not only removable recording media such as floppy disks (registered trademark), magneto-optical disks, DVDs, and CDs, but also HSSs 102-1 and 102-2. It refers to a memory such as ROM, RAM, HDD, etc. The program recorded on the recording medium is read by the CPU (information management unit 207 in this embodiment) in the HSSs 102-1 and 102-2, and the same processing as described above is performed under the control of the CPU. Is called. Here, the CPU operates as a computer that executes a program read from a recording medium on which the program is recorded.

The present invention has been described above with reference to the embodiments, but the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

This application claims priority based on Japanese Patent Application No. 2008-128419 filed on May 15, 2008, the entire disclosure of which is incorporated herein.

Claims

Mobile communication terminals connectable to a plurality of networks different from each other, subscriber information for associating subscriber identification information for identifying the mobile communication terminals and service contents provided to the mobile communication terminals, respectively Storing the subscriber information management device provided in each of the two systems, each of the plurality of networks and the two subscriber information management devices, and the subscriber information transmitted from the mobile communication terminal. An information communication system comprising a plurality of proxy nodes that transfer an update request signal to one of the two subscriber information management devices based on subscriber identification information included in an update request signal for requesting an update In
The subscriber information management device includes system information indicating which subscriber information management device capable of updating the subscriber information is a subscriber information management device provided in each of the two systems, and the subscriber identification. Information is stored in association with each other, and when the update request signal is transmitted from the mobile communication terminal, the system information stored in association with the subscriber identification information of the mobile communication terminal is the subscriber An information communication system, wherein the subscriber information is updated when an information management apparatus system is shown.
The information communication system according to claim 1,
The subscriber information management device includes:
A subscriber information storage unit for storing the subscriber information;
An updated system information storage unit that stores the system information and the subscriber identification information in association with each other;
When the update request signal is transmitted from the mobile communication terminal, the system information associated with the subscriber identification information of the mobile communication terminal and stored in the update system information storage unit is the subscriber information management An information communication system comprising: an information management unit that updates subscriber information stored in the subscriber information storage unit when indicating a system of the apparatus.
The information communication system according to claim 2,
The system information stored in the update system information storage unit in association with subscriber identification information of the mobile communication terminal when the update request signal is transmitted from the mobile communication terminal Proxy node that transferred the update request signal with a signal indicating that the subscriber information stored in the subscriber information storage unit cannot be updated, An information communication system, wherein
In the information communication system according to claim 2 or claim 3,
When the switching of the system indicated by the system information is instructed from outside, the information management unit switches the system of the system information stored in the updated system information storage unit, and is associated with the switched system information. Subscriber identification information stored in the update system information storage unit of the subscriber information management device is transmitted to a subscriber information management device other than the subscriber information management device, and subscriber information other than the subscriber information management device is transmitted. When the subscriber identification information is transmitted from the management device, the system information stored in the update system information storage unit of the subscriber information management device in association with the transmitted subscriber identification information indicates An information communication system characterized by switching systems.
The information communication system according to any one of claims 2 to 4,
When the information management unit detects that the subscriber information management device needs to be blocked, the information management unit blocks the subscriber information management device to a subscriber information management device other than the subscriber information management device and the proxy node. When the subscriber information management device other than the subscriber information management device is notified of the blockage of the subscriber information management device other than the subscriber information management device, the update information storage of the subscriber information management device is performed. An information communication system characterized by switching all systems indicated by system information stored in a section to those indicating the system of the subscriber information management apparatus.
The information communication system according to claim 5, wherein
When the information management unit is instructed to release the block from outside, the information management unit notifies the subscriber information management device other than the subscriber information management device and the proxy node of the block release of the subscriber information management device, and When the subscriber information management device other than the subscriber information management device is notified of the release of the blocking of the subscriber information management device other than the subscriber information management device, it is stored in the update system information storage unit of the subscriber information management device. An information communication system characterized in that the system information is switched back to the initial value.
The information communication system according to claim 2,
The update system information storage unit groups the subscriber identification information into a plurality of number bands, stores the number band and the system information in association with each other,
When the update request signal is transmitted from the mobile communication terminal, the information management unit is associated with the number band to which subscriber identification information of the mobile communication terminal is assigned and stored in the update system information storage unit. An information communication system characterized by updating subscriber information stored in the subscriber information storage unit when the stored system information indicates a system of the subscriber information management apparatus.
The information communication system according to claim 7,
When the update request signal is transmitted from the mobile communication terminal, the information management unit is associated with the number band to which subscriber identification information of the mobile communication terminal is assigned and stored in the update system information storage unit. When the stored system information does not indicate the system of the subscriber information management device, a signal indicating that the subscriber information stored in the subscriber information storage unit cannot be updated is updated. An information communication system, comprising: transmitting a request signal to a transferred proxy node.
A subscriber information management device for storing subscriber information in which subscriber identification information for identifying a mobile communication terminal is associated with contents of a service provided to the mobile communication terminal,
System information indicating whether the subscriber information management device capable of updating the subscriber information is the subscriber information management device or a subscriber information management device connected to the subscriber information management device, and the subscription An update system information storage unit that stores the person identification information in association with each other;
When an update request signal for requesting update of the subscriber information is transmitted from the mobile communication terminal, the update communication information is stored in the update system information storage unit in association with subscriber identification information of the mobile communication terminal A subscriber information management apparatus comprising: an information management unit that updates the stored subscriber information when the system information indicates a system of the subscriber information management apparatus.
In the subscriber information management device according to claim 9,
The system information stored in the update system information storage unit in association with subscriber identification information of the mobile communication terminal when the update request signal is transmitted from the mobile communication terminal If the mobile station does not indicate a system of the subscriber information management apparatus, a signal indicating that the stored subscriber information cannot be updated is transferred to the update request signal transmitted from the mobile communication terminal. A subscriber information management device, wherein the information is transmitted to a proxy node.
In the subscriber information management device according to claim 9,
The update system information storage unit groups the subscriber identification information into a plurality of number bands, stores the number band and the system information in association with each other,
When the update request signal is transmitted from the mobile communication terminal, the information management unit is associated with the number band to which subscriber identification information of the mobile communication terminal is assigned and stored in the update system information storage unit. The stored subscriber information is updated when the stored system information indicates a system of the subscriber information management apparatus.
In the subscriber information management device according to claim 11,
When the update request signal is transmitted from the mobile communication terminal, the information management unit is associated with the number band to which subscriber identification information of the mobile communication terminal is assigned and stored in the update system information storage unit. If the stored system information does not indicate the system of the subscriber information management apparatus, a proxy indicating that the stored subscriber information cannot be updated is transferred to the proxy that has transferred the update request signal A subscriber information management apparatus, characterized by being transmitted to a node.
A subscriber information management method in a subscriber information management apparatus for storing subscriber information in which subscriber identification information for identifying a mobile communication terminal is associated with contents of a service provided to the mobile communication terminal,
System information indicating whether the subscriber information management device capable of updating the subscriber information is the subscriber information management device or a subscriber information management device connected to the subscriber information management device, and the subscription A process of storing the person identification information in association with each other,
When an update request signal for updating the subscriber information is transmitted from the mobile communication terminal, the system information stored in association with the subscriber identification information of the mobile communication terminal is the subscriber information. A subscriber information management method comprising a process of updating the stored subscriber information when indicating a system of a management apparatus.
In the subscriber information management method according to claim 13,
When the update request signal is transmitted from the mobile communication terminal, the system information stored in association with the subscriber identification information of the mobile communication terminal indicates the system of the subscriber information management device. If there is not, it has a process of transmitting a signal indicating that the stored subscriber information cannot be updated to the proxy node to which the update request signal transmitted from the mobile communication terminal has been transferred. To manage subscriber information.
In a subscriber information management apparatus for storing subscriber information in which subscriber identification information for identifying a mobile communication terminal is associated with the contents of a service provided to the mobile communication terminal,
System information indicating whether the subscriber information management device capable of updating the subscriber information is the subscriber information management device or a subscriber information management device connected to the subscriber information management device, and the subscription Storing the person identification information in association with each other;
When an update request signal for updating the subscriber information is transmitted from the mobile communication terminal, the system information stored in association with the subscriber identification information of the mobile communication terminal is the subscriber information. A program for executing a procedure for updating the stored subscriber information when indicating a system of a management apparatus.
The program according to claim 15, wherein
When the update request signal is transmitted from the mobile communication terminal, the system information stored in association with the subscriber identification information of the mobile communication terminal indicates the system of the subscriber information management device. If not, a procedure for transmitting a signal indicating that the stored subscriber information cannot be updated to the proxy node to which the update request signal transmitted from the mobile communication terminal is transferred is the subscriber information management. A program that is executed by a device.