KR20090093149A - Apparatus and method of management subscriber information in Broadband Convergence Network - Google Patents

Abstract

A subscriber information management method of a broadband merging network and an apparatus thereof for updating the subscriber information after restoring the information in a state where the failure of a plurality of process modules occurs are provided to prevent the subscriber information from being previously managed by the processing module. A soft switch(700) is connected with a subscriber information management system(800) managing the subscriber information of a public telephone subscriber. The subscriber data management system manages the database toward the caller identifier of all common telephone subscribers. According to the subscriber data management system is the request of soft switch, the caller identifier change requested is transmitted with the POTS process module managing the call processing of the corresponding common telephone subscriber.

Description

Apparatus and method of management subscriber information in Broadband Convergence Network}

The present invention relates to a method and apparatus for managing subscriber information of a broadband communication network, and more particularly, to a POTS processing module that handles call processing of a general subscriber in a soft switch of a broadband converged network, or fails for other reasons. In order to prevent the subscriber information from being changed by not recognizing the updated subscriber information, if the subscriber information in charge of the corresponding POTS processing module is changed in the DOWN state of the POTS processing module of the soft switch, the changed subscriber information is stored. The present invention relates to a method and apparatus for managing subscriber information of a broadband communication network that transmits changed subscriber information when the corresponding POTS processing module is restored (ACTIVE).

Broadband Convergence Network (BcN) is a network that supports high-speed communication over a large area. Broadband converged network is similar to the Internet, and like the Internet, it connects a vast area by using various equipment such as switching equipment. It is a network that stably provides multimedia services.

The services that can be provided by the broadband converged network include, for example, telephone service through the existing public switched telephone network (PSTN), and these telephone services use the information transmission function of the broadband integrated network to make and receive calls in real time. A call is connected between telephone terminals to exchange voice.

As such, the broadband convergence network includes equipment such as soft switches and various gateways in order to provide various services.

That is, the same service as the existing telephone service is provided to the general subscribers (POTS) of the broadband integrated network, and the telephone service is provided to the general subscribers (POTS) connected through the access gateway (AGW).

In the existing service network, a separate network existed for each service such as voice and data, but the broadband integrated network supports transmission of traffic such as voice, video, fax, and data through the same link, PSTN, cable, and wireless. Separate networks such as, mobile and IP (Internet Protocol) networks are integrated.

1 is a network connection diagram for explaining a general broadband integrated network.

Referring to FIG. 1, the broadband converged network accommodates a plurality of soft switches 101 and 102 for call control, various terminals of subscribers, and protocol processing and media conversion for connection with the soft switches 101 and 102. Access gateways 201, 202, and 203, application servers 301 and 302 that provide various services to general subscribers (POTS), and packet forwarding networks for information transfer between components in the broadband converged network ( 100, number translation servers 301 and 401 for number translation and routing, media servers 501 and 502 responsible for storing and providing resources necessary for providing various services, and the like. .

In addition, the broadband converged network includes a signaling gateway 601 supporting interworking of No. 7 network 600 and soft switches 101 and 102, and interworking of PSTN 500 and soft switches 101 and 102. A trunk gateway 504 is provided.

The soft switches 101 and 102 of the broadband integrated network configured as described above communicate with the access gateways 201, 202 and 203 and the trunk gateway 504 based on the MEGACO protocol, and media based on the session initiation protocol (SIP). Communicates with servers 501, 502, application server 302, and Parlay gateway 310, communicates with number translation server 401 based on user datagram protocol (UDP), and soft switches 101, 102 provide signaling. It communicates with the gateway 601 based on the SIGTRAN protocol.

The broadband integrated network configured as described above provides various communication services to terminals of subscribers accommodated through the access gateways 201, 202, and 203. The communication services provided through the broadband integrated network include general telephone service and data service. All are included.

Meanwhile, as the number of general subscribers joining the broadband convergence network increases, the importance of the soft switches 101 and 102 for handling calls of general subscribers connected through the access gateway and trunk gateway is increasing. Since the provided telephone service is a real time communication service, it should be provided seamlessly.

To this end, the call processing function of the general telephone subscriber, and if the POTS processing module mounted on the soft switch 101, 102 is dualized and a failure occurs in one POTS processing module, the service is provided through another POTS processing module. Maintain continuity.

Therefore, a plurality of POTS processing modules mounted on the soft switches 101 and 102 of the broadband integrated network manage subscriber information of a general telephone subscriber to access and handle call processing based on subscriber information. Should manage subscriber information for regular subscribers who were in charge after recovery.

That is, when the subscriber information is changed during the failure period, the POTS processing module causes a problem in call processing for the subscriber because the subscriber information before the failure occurs and the subscriber information managed after the recovery are different.

The present invention is proposed to solve the problem of inconsistency in the subscriber information that may occur in the broadband converged network, and the POTS processing module that handles call processing of a general telephone subscriber in a soft switch of the broadband integrated network fails, or the like. It is an object of the present invention to provide a method and apparatus for managing subscriber information in a broadband converged network that does not recognize subscriber information changed (updated) for a reason and thus prevents subscriber information from being different.

In addition, the present invention stores the changed subscriber information when the subscriber information in charge of the POTS processing module is changed in a state in which the POTS processing module of the soft switch has failed (DOWN), and when the POTS processing module is restored (ACTIVE), It is an object of the present invention to provide a method and apparatus for managing subscriber information in a broadband converged network that transmits changed subscriber information to allow a POTS processing module to manage accurate subscriber information.

According to an aspect of the present invention, there is provided a broadband integrated network including: a soft switch on which a plurality of POTS processing modules for call processing of a plurality of subscribers (POTS) are mounted; If the subscriber information of the subscriber in charge of the POTS processing module in the first state of each POTS processing module is changed, the changed subscriber information is stored, and the corresponding POTS processing module returns to the second state. If switched, the subscriber information management system for transmitting the changed subscriber information.

The soft switch includes a first type POTS processing module for requesting a change of subscriber information of each subscriber and a plurality of second type POTS processing modules in charge of call processing of the respective subscribers. The POTS transmits failure information to the subscriber information management system when the first state is reached, and transmits recovery information to the subscriber information management system when the second state is reached. After updating the information, a confirmation message is transmitted to the subscriber information management system.

 The subscriber information management system checks the operation state of each POTS processing module and manages the operation state of each POTS processing module in a table form, and the subscribers whose call processing is handled by each POTS processing module. An information management unit for managing the subscriber information, and an information transmission unit for transmitting the subscriber information managed by the information management unit to the POTS processing module, wherein the information management unit, if a request for change of subscriber information is requested, corresponds to the corresponding POTS processing module. If the second state is checked, the changed changed subscriber information is transmitted to the corresponding POTS processing module. If the first state is changed, the changed subscriber information is stored as notification changed subscriber information.

The information manager stores the notification change subscriber information for each POTS processing module in the first state in a table form.

The information management unit checks whether a confirmation message is received within a predetermined time after transmitting the notification change subscriber information, a) deletes the notification change subscriber information if received, and b) the notification if not received. Resend the changed subscriber information.

The subscriber information may include identification information (ID) for each subscriber, subscriber telephone number information (DN: Directory Number), megaco identifier information (MID: Megaco termination Identifier), or logical number information (LLN) assigned to the subscriber telephone number information. : Logical Line Number).

According to another aspect of the present invention, there is provided a method for managing subscriber information in a broadband converged network, comprising: checking, by a subscriber information management system, an operation state of a plurality of POTS processing modules mounted on a soft switch; Checking an operation state of a POTS processing module in charge of call processing of a subscriber corresponding to subscriber information, and if the operation state of the POTS processing module is a first state, storing the subscriber information as notification change subscriber information; And when the operation state of the POTS processing module becomes the second state, transmitting the notification change subscriber information.

In the checking of the operation state of the POTS processing module, the operation state of each POTS processing module is managed in a table form.

The method for managing subscriber information of the broadband converged network further includes receiving a request for change of subscriber information from a first type of POTS processing module or an operating terminal.

In the storing of the notification change subscriber information, the notification change subscriber information for each POTS processing module of the first state is stored in a table form.

The subscriber information management method of the broadband integrated network transmits the notification change subscriber information to a corresponding POTS processing module, checks whether a confirmation message is received within a predetermined time, and a) deletes the notification change subscriber information if received. And b) if not received, retransmitting the notification change subscriber information.

According to the present invention as described above, a plurality of POTS processing module mounted on the soft switch that handles the call processing of a plurality of general subscribers in the broadband converged network to update the subscriber information changed in the failure state after recovery This can prevent the POTS processing module from managing different subscriber information in advance.

1 is a network connection diagram for explaining a general broadband integrated network.

2 is a block diagram illustrating a broadband integrated network according to a preferred embodiment of the present invention.

3 is a block diagram illustrating a soft switch and a subscriber information management system according to a preferred embodiment of the present invention.

4 is a flowchart illustrating a subscriber information management flow of the broadband converged network according to the present invention.

5 is a flowchart illustrating a subscriber information management method of a broadband converged network according to a preferred embodiment of the present invention.

<Description of Signs for Main Parts of Drawings>

700: soft switch 710: POTS processing module (POTS-H)

720: POTS processing module (POTS-P) 800: subscriber information management system

810: information management unit 820: information transmission unit

830: status check unit 840: database

Hereinafter, a method and a device for managing subscriber information of a broadband integrated network according to the present invention will be described in detail with reference to the accompanying drawings. Or, detailed descriptions of well-known techniques are omitted.

2 is a block diagram illustrating a broadband integrated network according to a preferred embodiment of the present invention.

2, the broadband integrated network according to the present invention includes the components of the existing broadband integrated network, and the soft switch 700 to which the function according to the present invention is added manages subscriber information of a plurality of general subscribers. Is connected to the subscriber information management system 800.

That is, in the broadband converged network according to the present invention, a soft switch 700 for handling call requests requested by a plurality of general subscribers (POTS) connected through an access gateway 201 manages subscriber information of a general subscriber. It is connected with the subscriber information management system 800.

The subscriber information management system 800 may have a function of an existing number translation server, or may be constructed as a separate system.

The subscriber management system 800 establishes / manages a database (840 of FIG. 3) of subscriber information of all general telephone subscribers accessing the soft switch 700, and at the request of the soft switch 700, the subscriber information. Or transmits the changed subscriber information to the POTS processing module 720-in charge of call processing of the corresponding general subscriber.

Meanwhile, the subscriber management system 800 monitors an operation state (DOWN or ACTIVE) of the plurality of POTS processing modules (720 of FIG. 3) mounted on the soft switch 700, and in the POTS processing module 720 in the DOWN state When the subscriber information of the general telephone subscriber in charge is changed, the changed subscriber information is stored, and when the corresponding POTS processing module 720 is in the ACTIVE state, the changed subscriber information is transmitted.

3 is a block diagram illustrating a soft switch and a subscriber information management system according to a preferred embodiment of the present invention.

Referring to FIG. 3, the soft switch 700 may include a plurality of POTS processing modules 710 and 720, and the first POTS processing module 710 of the first type (POTS-Home) may use the soft switch 700. The subscriber information for a plurality of general telephone subscribers set through the call is transmitted to the subscriber information management unit 810 to request management or change request.

In this case, the first type of POTS processing module 710 requests the subscriber information management system 800 to change the subscriber information through a feature code handling scheme.

In addition, the plurality of POTS processing modules 720 of the second type (POTS-Peer) process calls requested by general subscribers connecting through the access gateway 201.

The first type of POTS processing module 710 and the second type of POTS processing module 720 have a Home-Peer structure, and are connected to one POTS processing module 720 of the second type POTS processing module 720. If a failure occurs, another POTS processing module 720 in the ACTIVE state requests the subscriber information to the subscriber information management system 800 to process the requested call from the general subscriber.

The second type of POTS processing module 720 transmits the failure information to the subscriber information management system 800 when a failure occurs and becomes a DOWN state. To send.

The subscriber information management system 800 includes a status checker 830, an information manager 810, an information transmitter 820, and a database 840.

The state checking unit 830 checks the operation states DOWN and ACTIVE of the plurality of POTS processing modules 720 mounted in the soft switch 700 to be connected. That is, the status checker 830 manages the current operation state of each POTS processing module 720 based on the failure information and the recovery information received from the second type of POTS processing module 720.

In this case, the state checking unit 830 may manage an operation state of each POTS processing module 720 through an operation state table based on identification information ID of each POTS processing module 720.

The information manager 810 stores / manages subscriber information of a plurality of general subscribers who process calls in the POTS processing module 720 of the second type of the soft switch 700 in the database 840. The information manager 810 changes the subscriber information of the general telephone subscriber in accordance with the change of subscriber information requested from the first type of POTS processing module 710 or requested through an operator command from an operation terminal (not shown).

The information transmitter 820 provides subscriber information requested from the second type of POTS processing module 720 or changes subscriber information of a general telephone subscriber in charge of the POTS processing module 720 in a DOWN state. The subscriber information managed by the POTS processing module 720 and the subscriber information managed by the subscriber information management system 800 are always synchronized to the POTS processing module 720 that handles call processing of the corresponding general telephone subscriber. )

The subscriber information management system 800 stores, in the database 840, subscriber information of a general telephone subscriber in charge of each POTS processing module 720- of the second type, and the operation status of each POTS processing module 720, and the corresponding POTS processing. Assigned to subscriber information in charge of module 720, namely identification information (ID), subscriber telephone number information (DN), Megaco termination identifier (MID) and DN per POTS Managed logical number information (LLN) in a table form.

The information manager 810 changes (updates) subscriber information of the corresponding general telephone subscriber when a request for change of subscriber information is requested from the POTS processing module 710 of the first type.

In addition, the information manager 810 checks the current operation state of the second type POTS processing module 720 in charge of call processing of the general telephone subscriber whose subscriber information is changed, and if it is in the ACTIVE state, the information transmitter 820. Transmits the changed subscriber information to the corresponding POTS processing module 720, and if the status is DOWN, the changed subscriber information is stored as the notification information, that is, the notification change subscriber information.

In this case, the information manager 810 may store the notification change subscriber information for each POTS processing module 720 in the DWON state as a separate notification table.

Meanwhile, when the POTS processing module 720 in the DOWN state transitions to the ACTIVE state, for example, when the POTS processing module 720 recovers from a failure state, notification information about the POTS processing module 720 is changed. Check whether the information is stored, and transmit the notification change subscriber information stored in the notification table to the corresponding POTS processing module 720.

When the notification change subscriber information is received from the subscriber information management system 800, the POTS processing module 720 updates the subscriber information to be managed with the notification change subscriber information and transmits a confirmation message to the subscriber information management system 800.

When the subscriber information management system 800 receives the confirmation message from the POTS processing module 720, the subscriber information management system 800 deletes the corresponding notification change subscriber information. That is, when the confirmation message is received from the POTS processing module 720, the information manager 810 deletes the notification change subscriber information for the corresponding POTS processing module 720.

On the other hand, if the subscriber information management system 800 does not receive a confirmation message within a certain time, there is a problem in the network or the connection path because the POTS processing module 720 did not receive the notification change subscriber information, notification change subscriber information Resend

At this time, the subscriber information management system 800 and the POTS processing module 720-of the soft switch 700 communicate with each other according to a stream control transmission protocol (SCTP), and the subscriber information management system 800 softens the notification change subscriber information. The POTS may be transmitted to the POTS processing module 720 of the switch 700.

4 is a flowchart illustrating a subscriber information management flow of the broadband converged network according to the present invention.

Referring to FIG. 4, when a failure occurs in the second POTS processing module 710-1, when a failure occurs, the second type of second POTS processing module 720-manages subscriber information when failure occurs. It transmits to the system 800 (S 100).

The subscriber information management system 800 manages an operation state for each POTS processing module 720, that is, a second POTS processing module 720 which is a second type of failure.

When the subscriber information is changed, the first type of POTS processing module 710-1 transmits the changed subscriber information to the subscriber information management system 800 (S110).

The subscriber information management system 800 checks the operation state of the second POTS processing module 720-1 in charge of call processing of the general telephone subscriber corresponding to the changed subscriber information, and if the failure occurs in the DOWN state, the changed subscriber information To store the changed notification information (S 120).

When the failure is repaired, the second POTS processing module 720-1 transmits the recovery information to the subscriber information management system 800 (S 130).

The subscriber information management system 800 transmits the notification change subscriber information when the second POTS processing module 720-1 in which the subscriber information is changed in the down state in which the failure occurs is restored (S 140).

When the notification change subscriber information is received, the second POTS processing module 720-1 updates the subscriber information and transmits a confirmation message to the subscriber information management system 800 (S 150).

5 is a flowchart illustrating a subscriber information management method of a broadband converged network according to a preferred embodiment of the present invention.

Referring to FIG. 5, the subscriber information management system 800 monitors an operation state of a plurality of second types of POTS processing modules 720 mounted on the soft switch 700 in real time (S 200).

That is, the subscriber information management system 800 manages the operation state of the second type of POTS processing module according to whether failure information is received from the second type of POTS processing module 720 of the soft switch 700.

When the subscriber information is changed, the POTS processing module 710 of the first type of the soft switch 700 requests the subscriber information management system 800 to change the subscriber information (S210). On the other hand, the change request of the subscriber information may be requested by the operator to change the subscriber information through the operation terminal.

The subscriber information management system 800 checks the current operation state of the second type POTS processing module 720 that is in charge of call processing for the general subscriber who has changed subscriber information (S220).

In this case, the subscriber information management system 800 may manage an operation state of each POTS processing module 720-with an operation state table. Referring to the operation state table, the subscriber information management system 800 of the corresponding second type POTS processing module 720 may be used. Know the current operating state.

If the second type of POTS processing module 720 is in the ACTIVE state, the subscriber information management system 800 transmits the changed subscriber information (S230).

Meanwhile, if the current operation state of the second type of POTS processing module 720 is DOWN state, the subscriber information management system 800 stores the notification change subscriber information for each POTS processing module 720 in the notification table (S). 240).

The subscriber information management system 800 monitors the operation state of each of the second type of POTS processing modules 720 of the soft switch 700, while the second type of POTS processing module 720 in the DOWN state is brought into the ACTIVE state. Check whether the transition (S 250). That is, the subscriber information management system 800 checks whether recovery information is received from the second type of POTS processing module 720 having a failure.

When the second type POTS processing module 720 is switched from the DOWN state to the ACTIVE state, the subscriber information management system 800 retrieves the notification change subscriber information of the second type POTS processing module 720 from the notification table. In operation S260, the second type of POTS processing module 720 is transmitted to the corresponding second type POTS processing module 720.

When the notification type changed subscriber information is received, the second type of POTS processing module 720 updates the subscriber information and transmits a confirmation message to the subscriber information management system 800 (S270).

The subscriber information management system 800 checks whether a confirmation message is received within a predetermined time (S280).

When the subscriber information management system 800 receives the confirmation message, the subscriber information management system 800 deletes the corresponding notification change subscriber information (S290).

On the other hand, if the subscriber information management system 800 does not receive a confirmation message within a certain time, there is a problem in the network or the connection path because the second type POTS processing module 720 did not receive the notification change subscriber information, The notification change subscriber information is retransmitted (S 300).

Although the present invention has been described in detail through the representative embodiments, those skilled in the art to which the present invention pertains can make various modifications without departing from the scope of the present invention. I will understand. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims below and equivalents thereof.

Claims (11)

In a broadband converged network, A soft switch equipped with a plurality of POTS processing modules in charge of call processing of a plurality of subscribers (POTS); The POTS processing module manages subscriber information of each subscriber in charge of call processing, and when the subscriber information of the subscriber in charge of the POTS processing module in a first state of each POTS processing module is changed, the changed change. And a subscriber information management system for storing subscriber information and transmitting the changed subscriber information when the corresponding POTS processing module is switched to the second state. The method of claim 1, wherein the soft switch, A first type POTS processing module for requesting a change of subscriber information of each subscriber; A plurality of second type POTS processing modules in charge of call processing of each subscriber; The second type of POTS is When the first state, the failure information is transmitted to the subscriber information management system, when the second state, recovery information is transmitted to the subscriber information management system, and when the changed subscriber information is received, the subscriber information is updated. And afterwards sending a confirmation message to the subscriber information management system. The method of claim 1, wherein the subscriber information management system, A state checking unit for checking an operation state of each POTS processing module and managing an operation state of each POTS processing module in a table form; An information management unit for managing the subscriber information of the subscriber in charge of call processing by each POTS processing module; And an information transmitter for transmitting the subscriber information managed by the information manager to a corresponding POTS processing module. The information management unit, If there is a request for a change of subscriber information, the operation state of the corresponding POTS processing module is checked, and if the second state, the changed changed subscriber information is transmitted to the corresponding POTS processing module. Broadband integrated network, characterized in that stored as. The method of claim 3, wherein the information management unit, And storing the notification change subscriber information for each POTS processing module of the first state in a table form. The method of claim 3, wherein the information management unit, Check whether a confirmation message is received within a predetermined time after transmitting the notification change subscriber information, a) if received, delete the notification change subscriber information, b) if not received, retransmit the notification change subscriber information. The method of claim 1, wherein the subscriber information, Logical Line Number (LLN) assigned to the subscriber identification information (ID), subscriber telephone number information (DN: Directory Number), megaco identifier information (MID: Megaco termination Identifier) or the subscriber telephone number information (LLN) At least one of the broadband integrated network. In the subscriber information management method of the broadband integrated network, Checking, by the subscriber information management system, the operation status of the plurality of POTS processing modules mounted in the soft switch; Checking the operation status of the POTS processing module in charge of call processing of a subscriber corresponding to the subscriber information when a change of subscriber information is requested; If the operation state of the POTS processing module is a first state, storing the subscriber information as notification change subscriber information; And transmitting the notification change subscriber information when the operation state of the POTS processing module becomes the second state. The method of claim 7, wherein checking the operation state of the POTS processing module, And managing the operation status of each POTS processing module in a table form. The method of claim 7, wherein And requesting a change of subscriber information from a first type of POTS processing module or a management terminal. The method of claim 7, wherein the storing of the notification change subscriber information comprises: And storing the notification change subscriber information for each POTS processing module of the first state in a table form. The method of claim 7, wherein By sending the notification change subscriber information to the corresponding POTS processing module, and confirms whether a confirmation message is received within a certain time, a) if received, delete the notification change subscriber information, b) if not received, further comprising retransmitting the notification change subscriber information.