KR20020057191A - Method for database back-up between multi SCP in intelligent network system - Google Patents

Abstract

PURPOSE: A method for backing up database between multi-SCP in an intelligent network system is provided to share database and exchange back-up files of the database between SCP systems, thereby increasing the agreement in data. CONSTITUTION: A communication processor of an SMS transmits a data back-up request message and an address of the nth SCP to a communication processor of an SCP(ST11). The communication processor of the SCP instructs the first DBMS(Database Management System) to create database back-up files(ST12). The first DBMS loads data saved at the first DB for creating the back-up files(ST13). The created back-up files are transmitted to the second DB by using an FTP(File Transfer Protocol)(ST14). It is determined whether the back-up files are transmitted(ST15). A back-up and FTP transmission termination message is transmitted to the communication processor of the SMS(ST16). The communication processor of the SMS transmits a back-up file loading command message to the nth communication processor(ST17). The nth communication processor transmits a back-up file loading command to the nth DBMS, so that the nth DBMS reads the back-up files for saving the back-up files at the nth DB(ST18).

Description

Method for database back-up between multi SCP in intelligent network system}

The present invention relates to a method of backing up subscriber databases between multiple SCPs in an intelligent network system, and more particularly, to a method of increasing data consistency by providing a method of backing up subscriber databases so that databases can be shared between a plurality of SCP systems. .

In general, an intelligent network system refers to equipment capable of generating and processing a service desired by a service provider.In an intelligent network, SSP (Service Switching Point), which is a switching device, and SCP (Service Control Point), which is a service control device, are network elements. And a Service Management System (SMS), which is a service management device, and an Intelligent Peripheral (IP), an intelligent peripheral device, and a Service Creation Environment (SCE), which is a service development environment for creating and providing service logic.

Providing improved subscriber services to subscribers in modern communication systems is of increasing importance for network operators, which include 800 service databases, credit card lookup databases, geographical call routing, incoming call routing, and multi- Includes location extension dialing, network automatic call distribution, flexible call routing, flexible carrier selection, and CLASS calling name delivery database.

1 is a block diagram showing a network structure when a plurality of SCPs in a general intelligent network system.

As shown therein, a plurality of mobile terminal (MS) 10, a base transceiver system (BTS) 20 for transmitting / receiving messages with mobile subscribers, and a base station for managing the BTS 20 (base station) Controller (30), personal communication eXchange (PCX) 40 as an exchange station, home location register (HLR) 50 as a home location register, service switching point (SSP) 70 as an exchange device, and origination SCP (Service Control Point) (83, 83 + n) for storing the number for the subscriber, SMS (Service Management System) (81), a management system supporting the SCP (83, 83 + n), and intelligent peripheral It comprises an IP (Intelligent Peripheral) 84 as a device and a Service Creation Environment (SCE) 82 as a service development environment for creating and providing service logic.

First, when the calling subscriber attempts to call the called subscriber, the mobile terminal 10 transmits a call signal to the BTS 20, and the BTS 20 performs a message transmission / reception operation with the mobile terminal 10. The call signal transmitted from the mobile terminal 10 is received.

Next, the BSC 30 manages the BTS 20, performs a message transmission / reception operation, and transmits the call signal to the PCX 40 when a call signal is input through the BTS 20.

The PCX 40 performs an operation of requesting or supplying information stored in the HLR 50, and the HLR 50 stores and manages the telephone number of the calling subscriber, wherein SCP (83, 83 + n) Stores information about the user and the subscriber's phone number.

Referring to the configuration of a general intelligent network system having such a configuration in detail as follows.

The BTS 20 provides an interface through a wired connection with a base station controller (BSC) 30 and a wireless connection between a mobile station (Personal Station) to basically move through a wireless interface with the mobile terminal 10. Provide information about the subscriber.

The base station controller (BSC) 30 is located between the base station (BTS) 20 and the switching center (PCX) 40, the gateway / Local Communication Interconnection Network (G / LCIN), Call Control Processor (CCP), TSB It consists of a Transcoder Selector Bank and a Base Station Manager (BSM) subsystem, and performs control and hand-off of wireless and wired links.

The PCX 40 is located between the HLR 50 and the BSC 30 in the DCN and supports connection between the PCN in the DCN and the external network (PSTN, DCN, Other Network) in the DCN. It also provides basic and supplementary service functions to subscribers, and supports a database for temporary storage of subscriber information by the internally implemented visitor location register (VLR) (not shown), and access exchange subsystem (ASS: Access Switching Subsystem), Interconnection Network Subsystem (INS), and Center Control Subsystem (CCS).

The HLR 50 is a database for storing permanent subscriber information of the CDMA digital mobile communication system using the PCX 40 and CCS NO.7 common line signaling method for location registration, subscriber information management, call processing and It performs an additional service function, and consists of BEP (Back End Processor), FEP (Front End Processor), and T1 / E1 MUX Operation & Maintenance Processor (OPM).

Next, the SSP 70 is a special type of electronic exchange that connects a service user and an intelligent network. That is, the intelligent network service call is recognized from the call user's call and the SCP 83 is notified of this. Upon receiving the information necessary for processing the intelligent network service call from the SCP 83, the call is connected to the desired destination, and the call time and the called number are recorded on a disk or a magnetic tape. Usually, the existing switch 40 is used as the SSP 70 by adding a communication function with the SCP 83, an intelligent network service recognition function, and an intelligent network charging function.

Next, the SMS 81 is a management system supporting SCP (83, 83 + n), and manages data records of service subscribers necessary for service control, and updates the latest version of service logic and data to SCP (83,83+). n). On the other hand, the service subscriber can change his or her service data using this system, and the SMS 81 can report various measurement data of SCP (83, 83 + n), report on service processing error, and output network management information. In charge of. The SMS 81 is usually present in the intelligent network as a separate system that connects SCP (83, 83 + n) to the public data network, or in combination with SCP (83, 83 + n).

The SCP (83, 83 + n) has service logic and data that manages the entire process of intelligent network service processing, and usually uses a commercial computer or a special type of electronic exchange that can process a large amount of transactions in real time as SCP. It is possible to provide various intelligent network services with one SCP (83), or have different SCP (83 + n) for each service. In addition, service logic and data in SCP 83, 83 + n can be supplied with the latest version from SMS 81 if necessary.

Such an intelligent network system continuously delivers a message without considering the capacity or performance of the receiving party at the side of sending a message when TCP / IP operation is performed between different network entities, and writes the message at the sending side of the message. In the event of an error, the message is discarded in such a way that the TCP / IP setting is reset and reset, and the subscriber database is regenerated by receiving SMS data by sharing the database between SCPs. .

However, in the conventional method, when the data transmitted from the SMS is incorrect, the data of the SCP is also wrong, that is, a data inconsistency occurs between different network entities, and also causes an overload caused by TCP / IP release and reset redundancy. Has

Accordingly, the present invention is proposed to solve the above problems of the prior art,

An object of the present invention is to provide a database backup method between multiple SCP in an intelligent network system to increase the data consistency between each SCP by sharing the database between a plurality of SCP systems.

The present invention for achieving the above object,

Sending a backup request message from the SMS communication processor to the first SCP communication processor;

Receiving the message, the first SCP communication processor instructing the first DBMS to create a database backup file;

The first DBMS receiving the command generates a data backup file from the first DB;

Transmitting the generated backup file to a second DB using FTP,

Determining whether the backup file has been transferred;

When the backup file is transmitted as a result of the determination, transmitting a backup end and FTP transfer completion message to the SMS communication processor;

The SMS communication processor, after receiving the message, transmitting a command message to load a backup file to an n-th communication processor;

Transmitting a database loading command to a control DBMS receiving the message;

When the command is transmitted, the n-th DBMS reads the backup file and stores the loaded backup file in the n-th DB.

1 is a block diagram showing a network structure when a plurality of SCPs in a general intelligent network system,

2 is a view showing the flow of backup procedure messages between a plurality of SCP in the intelligent network system according to the present invention,

3 is a flowchart illustrating a backup procedure between a plurality of SCPs in an intelligent network system according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10 ..... Mobile Station (MS)

20 ..... Base Transceiver Subsystem

30 ..... Base Station Controller

40 ..... PCX (Personal Communication eXchange)

50 ..... Home Location Register

60 ..... CSBS (Customer Service & Billing system)

70 ..... Service Switching Point (SSP)

80 ..... Intelligent Network System

81 ..... Service Management System

82 ..... Service Creation Environment (SCE)

83, 83 + n ..... First and nth SCP (Service Control Point)

84 ..... Intelligent Peripheral

Hereinafter, a preferred embodiment of a multi-SCP database backup method in the intelligent network system of the present invention according to the above technical concept will be described in detail with reference to the accompanying drawings.

2 is a diagram illustrating a flow of backup procedure messages between a plurality of SCPs in an intelligent network system according to the present invention.

First, in an intelligent network system consisting of one SMS and a plurality of SCPs, the interface between the SCP and the SMS is connected by TCP / IP, and the plurality of SCPs are defined as the first SCP, the second SCP, ..., the nth SCP. In the emergency situation, the SMS backs up the data of the first SCP database to the n-th SCP and serves the database.

As shown in FIG. 1, when the SMS 100 transmits a backup command and an address of the nth SCP 700 to the first SCP 200, the first SCP 200 receiving the backup command backs up a database to backup a backup file. Create a 400, and transmits the generated database backup file 400 to the n-th SCP (700) using the FTP (File Transfer Protocol).

Next, when the transmission of the backup file 400 is completed, the first SCP 200 notifies the SMS 100 of the termination message, and the SMS 100 receives the backup file to the n-th SCP 700. Send a command to reconfigure the database.

When the message is transmitted, the n-th SCP 700 reconstructs the database using the received backup file 600.

3 is a flowchart illustrating a backup procedure between a plurality of SCPs in an intelligent network system according to the present invention.

As shown here, in step ST11, the communication processor of SMS (hereinafter referred to as "processor A") is sent to the communication processor of SCP (hereinafter referred to as "processor B") data backup request message and the address of the nth SCP. In step ST12, the processor B receives the command to generate a database backup file to the first DBMS (Database Management System), and the first DBMS receiving the command transmits to the first DB in step ST13. Create backup file by loading saved data.

Next, when the backup file is generated, when the backup file is transferred to the second DB using FTP in step ST14, it is determined whether the backup file has been transferred in step ST15, and as a result, the file transfer is performed. If so, in step ST16, the backup termination and FTP transfer completion message is sent to processor A.

Next, the processor A receiving the message transmits a backup file loading command message to the n-th communication processor (hereinafter referred to as "processor C") in step ST17, and the processor C receiving the message sends a database to the control DBMS. Send a load command.

Next, the n-th DBMS receiving the command reads the backup file and stores the loaded backup file in the n-th DB.

According to the above-described invention "multi-SCP database backup method in the intelligent network system", during the SCP database backup procedure, the SMS only controls and manages each SCP, and each SCP system shares a database with each other, thereby each SCP It is possible to improve data consistency among multiple SCPs by sending / receiving backup files of databases between systems.

Claims (1)

A method for backing up a multi-SSP database in an intelligent network system, Sending a backup request message from an SMS (Service Management System) communication processor to a Service Control Point (SCP) communication processor; Receiving the message, the SCP communication processor instructing the database management system (DBMS) to generate a database backup file; Generating a data backup file from a first DB in the DBMS receiving the command; Transferring the generated backup file to a second DB by using a file transfer protocol (FTP); Determining whether the backup file has been transferred; Transmitting a backup completion and FTP transfer completion message to an SMS communication processor when a backup file is transmitted as a result of the determination; The SMS communication processor sending a command message to load a backup file to another SCP communication processor after receiving the message; Sending, by another SCP communication processor, receiving the message, a database loading command to another DBMS; When the command is transmitted, another DBMS reads a backup file, and then storing the loaded backup file in a second DB comprising the multi-SSI database backup method in an intelligent network system.