KR20010076590A - Single-Mode Duplexing Structure Of Subscriber Management System In Mobile Communication Network And Duplexing Management Method That the Syatem - Google Patents

Abstract

PURPOSE: Dual-structured single modes of a subscriber management system in a mobile communication network and a duplication management method of the system are provided to perform Internet or packet service for all subscribers and connect tow single mode sub-systems having equal hardware functions by a dual synchronization link. CONSTITUTION: The first and second subsystems(20,30) perform Internet and packet services for all subscriber, having the same hardware performance including the processing performance and the capacity necessary for duplication. The first and second subsystems(20,30) are connected each other by a duplication synchronizing link of Ethernet type. In order to manage the subscriber information of all subscriber group, the first and second subsystems(20,30) inform the subscriber information and the managed status to the duplicated subsystem via the duplication synchronizing link, and renew the subscriber information.

Description

Single-mode duplexing structure of subscriber management system in mobile communication network and duplexing management method that the syatem}

The present invention relates to a single mode duplex structure of a subscriber management system and a duplication management method of the system in a mobile communication network, and in particular, the same hardware performance as a subscriber management system that performs authentication, authorization information management, and billing processing for the Internet or packet service subscriber. The present invention relates to a single mode duplex structure of a subscriber management system and a duplication management method of a subscriber management system in a mobile communication network to interconnect two single mode subsystems having a duplex synchronization link to perform a corresponding duplication management.

In general, most communication systems are implemented with load sharing and hardware redundancy for each characteristic in order to improve service stability and reliability, and these communication systems do not affect the service provided even during operation in the event of a failure and maintenance. Hardware and software are implemented in a functional unit structure for easy use.

For example, in the case of a single mode home location register (HLR) system that provides subscriber information in a mobile communication network in real time, a CPU (Central) is implemented as shown in FIG. 1 to implement fault-tolerance. The process unit / memory board itself is redundant in hardware, and this hardware redundancy has led to an increase in system price.

Meanwhile, recently, AAA (Authentication, which is a subscriber management system used by the service provider for the Internet and packet services, for the authentication of subscribers, authorization information management, and accounting for service usage) Authorization, Accounting) Servers are increasing in demand as the Internet service increases.These internet and packet services are used not only in wired communication networks but also in mobile communication networks and next-generation mobile communication services (IMT-200 services) in which future services will be provided. Demand will surge.

Here, the wired network includes a RADIUS (Remote Authentication Dial In User Service) server, which is a single mode subscriber management system that performs authentication, authorization information management, and billing processing functions for the Internet and packet service subscribers remotely. In the case of next-generation mobile communication services, however, standardization is currently in progress.

On the other hand, the AAA server is not redundant in terms of system or in case of applying a new software package or expanding the system, or because only disk, which is a subscriber data storage device, is duplicated. In case of failure, application of new software package or expansion of system, service interruption was inevitable.

Accordingly, when the AAA server implements hardware fault tolerance redundancy like general communication systems, there is a disadvantage that the AAA server is very expensive compared to a single mode system having the same performance.

In addition, even if hardware failure redundancy is implemented, if there is no additional device configuration, a temporary service interruption is required when applying a new version of software or expanding a system.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object thereof is to provide the same hardware including the processing performance and capacity required for redundancy while performing Internet and packet services for all subscribers of a subscriber management system in a mobile communication network. By linking two single-mode subsystems with redundant synchronous links, redundancy can be implemented at a lower cost than a typical hardware fault tolerance redundancy.

Another object of the present invention is to implement a duplex implementation of a subscriber management system into two single mode subsystems interconnected by a redundant synchronous link in a mobile communication network, so that the failure and recovery of subsystems without interruption of service for all subscribers of the subscriber management system can be achieved. It is to enable the application of new versions of software packages and system expansion.

1 schematically illustrates a fault tolerance redundancy structure in a conventional HLR system.

2 is a diagram illustrating a single mode duplex structure of a subscriber management system in a mobile communication network according to the present invention;

Explanation of symbols on the main parts of the drawings

20: first subsystem 21, 31: CPU

22, 32: data storage unit 30: the second subsystem

A feature of the present invention for solving the above object is that two single mode subsystems having the same hardware capabilities including the processing and capacity required for redundancy while performing Internet and packet services for all subscribers. The present invention provides a single mode redundancy structure of a subscriber management system in a mobile communication network in which a single mode redundancy is interconnected by interconnecting a duplex synchronization link for duplex synchronization.

Here, each of the subsystems informs the redundant subsystem through the redundant synchronous link of the information on the subscriber groups processed by the subsystems and updates the information on the subscriber groups so that the information on the entire subscriber groups is the same. It is characterized in that the maintenance and management, the data storage unit for storing the information for the entire subscriber, and the stable processing performance for the additional work required to implement the redundancy while performing the Internet and packet services for the entire subscriber It characterized by including a CPU.

Another feature of the present invention is a duplex management method of a subscriber management system having a single mode duplex structure through a duplex synchronization link in a mobile communication network, wherein all subscribers are divided into two subscriber groups and corresponding subscriber groups in each subsystem are provided. Performing internet and packet services; Performing services for all subscribers in another subsystem when a subsystem failure or a new version of the software package is applied; In the mobile communication network including updating the subscriber information for all the subscribers through the redundant link by applying the corresponding failback or new version of the software package, and performing the service for the corresponding subscriber group in each subsystem. The present invention provides a duplication management method for a subscriber management system having a mode duplication structure.

Furthermore, in the event of a failure of the subsystem, a step of notifying the counterpart subsystem of its own failure through a redundant synchronous link; Performing service for the entire subscriber group including the subscriber group in charge of the failed subsystem; When failure recovery of the failed subsystem is completed, after updating the subscriber information for all the subscribers through the redundant link, the method further includes performing only the service for the corresponding subscriber group in each subsystem.

In addition, when a new version of the software package is to be applied to the subsystem, the step of separating the corresponding subsystem from the service processing and at the same time to perform the service for all subscribers in another subsystem; After applying the new version of the software package for the separate subsystem, notifying the counterpart subsystem of the completion of the software package application; After updating the subscriber information for all the subscribers through the redundant link, it further comprises the step of performing only the service for the corresponding subscriber group in each subsystem.

According to still another aspect of the present invention, in a duplex management method of a subscriber management system having a single mode duplex structure through a duplex synchronous link in a mobile communication network, when the traffic to the subscriber is increased during service operation, each system is increased. Separating redundant synchronous links interconnecting subsystems; Deleting the subscriber information for the subscriber group of the separated counterpart subsystem while processing the service for the subscriber group in charge; Connecting the new subsystem by a redundant synchronous link to perform a corresponding system expansion; Recording the subscriber information for the entire subscriber group in the expanded subsystem through the redundant synchronization link when the system expansion is completed; In accordance with the system expansion, a single mode duplication structure is provided in a mobile communication network including a process of dividing each subscriber group for each sub-system separated into two subscriber groups to perform service for a corresponding subscriber group in each subsystem. It is to provide a redundant management method of a subscriber management system having.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the mobile communication network according to the present invention, a single mode duplex structure of a subscriber management system, which is an AAA server that performs authentication, authorization information management, and billing processing for the Internet and packet subscribers, is shown in FIG. Ethernet for redundancy synchronization of the first and second subsystems 20 and 30 in single mode having the same hardware capabilities including the processing power and capacity required for redundancy while performing Internet and packet services for the network. It has a structure that is interconnected by redundant type synchronization link.

In addition, the first and second subsystems 20 and 30 duplicate the information and management status of the subscriber group that they have processed through the duplex synchronous link in order to maintain / manage the same subscriber information for the entire subscriber group. Notified subsystem is updated to update the information on the subscriber group.

In addition, the first and second subsystems 20 and 30 may include data storage units 22 and 32 having capacity for accommodating subscriber information for the entire subscriber group to be serviced by the AAA server. It includes a CPU (21, 31) having a stable processing performance for the additional work required for the implementation of redundancy while performing the Internet and packet services for.

That is, each subsystem 20, 30 maintains subscriber information for all subscribers, and when a subsystem fails, when a new version of software is applied or when a system is expanded, a subscriber group in charge of the counterpart subsystem is added. It is possible to perform a certain amount of additional work on the processing performance of the CPU (21, 31) while processing the service for the entire subscriber, including the service.

For example, the duplication management operation of the subscriber management system having a single mode duplication structure in the mobile communication network as described above is divided into a case of sub-system failure and recovery, a case of applying a new version of a software package, and a case of expanding a system. The explanation is as follows.

First, the first and second subsystems 20 and 30 divide the entire subscribers of the data storage units 22 and 32 that store subscriber information for all subscribers into two subscriber groups, respectively. It is assumed that the subscriber group in charge of the Internet and packet services, and the subscriber group in charge of the first subsystem 20 is called the first subscriber group, and the subscriber group in charge of the second subsystem 30 is called the second subscriber group.

In addition, the first and second subsystems 20 and 30 respectively notify the redundant partner subsystems of the subscriber information for the subscriber group in charge through the redundant synchronization link, and the partner subsystem sends data to the data storage unit. By updating the subscriber information for the notified subscriber group among the stored subscriber information, each subsystem 20, 30 maintains the same subscriber information for the entire subscriber.

First, when both the first and second subsystems 20 and 30 of the subscriber management system operate in a normal state and a failure occurs in the second subsystem 30, the CPU of the second subsystem 30 ( 31) informs the first subsystem 20 of the occurrence of its own failure through the redundant synchronization link, so that the CPU 21 of the first subsystem 20 has the second subsystem 30 in which the failure has occurred. All subscribers including the service for the second subscriber group in charge of the service, that is, the first subscriber group and the second subscriber group to perform the service.

Therefore, even if the second subsystem 30 is excluded from the service processing due to a failure, the subscriber management system may perform the first sub-service without interrupting service to the second subscriber group in charge of the second subsystem 30. By using the subscriber information stored in the data storage unit 22 of the system 20, it is possible to continuously provide a normal service for all subscribers.

Subsequently, when a corresponding recovery operation is completed by performing a failback on the failed second subsystem 30, the CPU 31 of the second subsystem 30 completes its failback through a redundant synchronous link. After notifying the first subsystem 20 side, the subscriber information for all subscribers stored in the data storage unit 22 of the first subsystem 20 is updated to its own data storage unit 32. do.

At this time, the CPU 21 of the first subsystem 20 has the extra processing power required for the redundant management while performing the service for all the subscribers, thereby performing the service for the entire subscribers and at the same time 2 it is possible to perform the necessary work for updating the subscriber information of the subsystem 20.

Meanwhile, when the subscriber information update for the second subsystem 30 is completed, the CPU 21 of the first subsystem 20 completes the update of the subscriber information through the redundant synchronization link. If notified of the completion of the normal subscriber information update from the CPU 31 of the second sub-system 30, only the service for the original first subscriber group is performed again, and the second sub-system 30 only performs the service for the second group of subscribers.

Second, if the system operator wants to apply the new version of the software package while the subscriber management system is performing normal service, the system operator executes the operator's command so that the second subsystem 30 performs service processing for all subscribers. After performing the operation mode, the first subsystem 20 is separated from the service process.

Subsequently, when the application of the new version of the software package to the first subsystem 20 separated from the service processing is completed, the CPU 21 of the first subsystem 20 completes the application of its own package through a redundant synchronous link. After notifying the second subsystem 30, the subscriber information for all subscribers stored in the data storage unit 32 of the second subsystem 30 is updated in its own data storage unit 22.

Meanwhile, when the subscriber information update for the first subsystem 20 is completed, the CPU 31 of the second subsystem 30 completes the update of the subscriber information through the redundant synchronization link. If notified of the completion of the normal subscriber information update from the CPU 21 of the first subsystem 20, and then disconnects itself from the service processing, it is notified to the first subsystem 20 side. .

Then, the CPU 21 of the first subsystem 20 after the application of the new version of the software package and the updating of the subscriber information is completed, including the entire group of second subscribers who were in charge of the second subsystem 30 separated from the service processing. Service processing for the subscriber is performed.

When the application of the new version of the software package to the second subsystem 30 separated in the service processing is completed, the CPU 31 of the second subsystem 30 completes the application of its own package through a redundant synchronous link. After notifying the first subsystem 20 side, the subscriber information for all the subscribers stored in the data storage unit 22 of the first subsystem 20 is updated in its own data storage unit 32.

Meanwhile, when the subscriber information update for the second subsystem 30 is completed, the CPU 21 of the first subsystem 20 completes the update of the subscriber information through the redundant synchronization link. If the notification of the completion of the normal subscriber information update from the CPU 31 of the second sub-system 30 is notified, the service is performed only for the original second subscriber group, and the first sub-system 20 performs only the service for the first group of subscribers.

Accordingly, the first and second subsystems 20 and 30 perform a service for the corresponding subscriber group with the new version of the software that has been applied to the package without interrupting the service for each subscriber group.

Third, if the traffic for the subscriber increases during the service operation of the subscriber management system, and the system manager wants to expand the system, the operator of the system performs an operator command to mutually connect the first subsystem 20 and the second subsystem 30 with each other. After disconnecting the redundant synchronous link, and performing service processing for the original subscriber group in charge of each subsystem 20, 30, and storing the subscriber information for the subscriber group in charge in the other subsystem Deletions are made at sections 22 and 32.

Subsequently, when the corresponding system expansion is completed by connecting a new subsystem having the same processing performance and capacity for each subsystem 20 and 30 by a redundant synchronous link, the expanded subsystem (not shown in the drawing). C) informs the sub-system 20, 30 of the completion of system expansion through the redundant synchronous link, and then the entire subscriber group stored in the data storage 22, 32 of the subsystem 20, 30. Subscriber information is recorded in its data store.

At this time, the CPUs 21 and 31 of the original subsystems 20 and 30 perform services for the entire subscriber group and perform operations necessary for recording subscriber information of the expanded subsystem.

On the other hand, the CPUs 21 and 31 of the original subsystems 20 and 30 notify the expanded subsystem side of the completion of recording of the subscriber information through the redundant synchronous link when the subscriber information recording for the expanded subsystem is completed. .

Thus, the original subsystems 20 and 30 and the expanded subsystem divide the same subscriber information into two subscriber groups and process only the Internet and packet services for the corresponding subscriber group.

Accordingly, the original subsystems 20 and 30 and the expanded subsystems can perform system expansion without interrupting service to the subscriber groups originally in charge of the subsystems 20 and 30.

In addition, the embodiments according to the present invention are not limited to the above-described embodiments, and various alternatives, modifications, and changes can be made within the scope apparent to those skilled in the art.

As described above, the present invention provides two single mode subsystems having the same hardware capabilities including processing capacity and capacity required for redundancy while performing internet and packet services for all subscribers of a subscriber management system in a mobile communication network. By interconnecting with redundant synchronous links to implement single-mode redundancy, the cost can be reduced compared to redundancy within conventional hardware fault tolerance.

In addition, the present invention redundantly implements a subscriber management system as two single mode subsystems interconnected by a redundant synchronous link in a mobile communication network, so that a system failure and recovery and a new version can be performed without interrupting service for all subscribers of the subscriber management system. Software package application and system expansion.

Claims (7)

Single-mode redundancy by interconnecting two single-mode subsystems with identical hardware capabilities, including the processing power and capacity required for redundancy, with the Internet and packet services for all subscribers, as redundant synchronization links for redundancy synchronization. Single mode duplex structure of the subscriber management system in a mobile communication network, characterized in that for implementing. The method of claim 1, Each of the subsystems informs the redundant subsystem via the redundant synchronous link of the information on the subscriber groups and the management status of the subscriber groups, and updates the information on the subscriber groups so that the information on the entire subscriber groups remains the same. / Redundancy structure of subscriber management system in a mobile communication network, characterized in that the management / management. The method according to claim 1 or 2, Each of the subsystems includes a data storage unit storing information on all subscribers, and a CPU having stable processing performance for additional tasks required for implementing redundancy while performing internet and packet services for all subscribers. Single mode duplex structure of the subscriber management system in a mobile communication network, characterized in that the. A duplex management method in a subscriber management system having a single mode duplex structure through a duplex synchronization link in a mobile communication network, Dividing the entire subscribers into two subscriber groups to perform Internet and packet services for corresponding subscriber groups in each subsystem; Performing services for all subscribers in another subsystem when a subsystem failure or a new version of the software package is applied; Updating the subscriber information for all subscribers through a redundant link by applying a corresponding failover or new version of the software package, and then performing only services for the corresponding subscriber group in each subsystem. Redundancy management method of subscriber management system having single mode redundancy structure in mobile communication network. The method of claim 4, wherein In the event of a failure of the subsystem, notifying the counterpart subsystem of its own failure through a redundant synchronous link; Performing service for the entire subscriber group including the subscriber group in charge of the failed subsystem; The mobile station further comprises the step of updating the subscriber information for all the subscribers through the redundant link when the failure recovery of the failed subsystem is completed, and performing only the service for the corresponding subscriber group in each subsystem. Redundancy management method of subscriber management system having single mode redundancy structure in communication network. The method of claim 4, wherein If a new version of the software package is to be applied to the subsystem, separating the corresponding subsystem from the service processing and performing service for all subscribers in another subsystem; After applying the new version of the software package for the separate subsystem, notifying the counterpart subsystem of the completion of the software package application; The subscriber management system having a single mode duplex structure in a mobile communication network further comprising the step of updating the subscriber information for all subscribers through the redundant link, and performing only the service for the corresponding subscriber group in each subsystem. Management of redundancy. A duplex management method in a subscriber management system having a single mode duplex structure through a duplex synchronization link in a mobile communication network, Separating redundant synchronous links interconnecting each subsystem when traffic is increased to subscribers and a system is to be expanded during service operation; Deleting the subscriber information for the subscriber group of the separated sub-system while performing service processing for the subscriber group in charge; Connecting the new subsystem by a redundant synchronous link to perform a corresponding system expansion; Recording the subscriber information for the entire subscriber group in the expanded subsystem through the redundant synchronization link when the system expansion is completed; In the mobile communication network comprising a step of dividing each subscriber group for each sub-system separated into two subscriber groups according to the system expansion to perform the service for the corresponding subscriber group in each subsystem. Redundancy management method of subscriber management system having mode duplication structure.