KR20020078433A - Method for data transmission scp and sms between of intelligence-net system - Google Patents

Abstract

PURPOSE: A method for transmitting data between an SCP(Service Control Point) and an SMS(Service Management System) in an intelligent network system is provided to prevent overload phenomenon between systems by controlling the transmission flow of data irrespective of the performance or capacity of an other system when transmitting data through a TCP/IP(Transmission Control Protocol/Internet Protocol) between the SCP and a processor of an SMS. CONSTITUTION: A buffer is generated in a database in which an FD(File Descript) on a TCP/IP is used as a key. A database for storing message transmission data is assigned to an application program using the TCP/IP. It is checked whether an error is generated by the performance insufficiency of an SMS when transmitting a message with the SMS. If the error is generated, it is judged whether the content of the error is a message process delay of the SMS. If the content of the error is the message process delay of the SMS, the message is stored in the database in which the FD is used as the key. Data stored in the buffer of the database are stored in a message transmission data storing database of the application program, and the buffer content of the application program is transmitted to the SMS.

Description

Method for data transmission scp and sms between of intelligence-net system}

The present invention relates to an intelligent network system, and more particularly, by allocating a buffer to an interface block in a processor communication structure between a service control point (SCP) and a service management system (SMS) to prevent inconsistency and overload of data between different networks. The present invention relates to a method for transmitting data between an SSP and an SM in an intelligent network system.

Communication service has been developed as a means to provide a variety of high-quality services, starting from providing a means as a simple communication medium, and in particular, the logical network of 'intelligence network' as a part to meet the various service needs of users. The concept of network has been introduced. The characteristics of the intelligent network are that it can implement various services that cannot be accommodated by the existing public telephone network (PSDN) and introduced the common channel signaling (COMMON CHANNEL SIGNALLING). The introduction of the common line signaling method has a significant meaning for the telephone network, and presents infinite possibilities for the development of the future communication network, especially contributing to the realization of the intelligent network.

1 is a block diagram of a general intelligent network system.

As shown in FIG. 1, reference numeral 1 recognizes a dialed digit that can identify a specific service, and inquires it into a centralized database (SCP) 5, receives a response, and routes a call. SSP (Service Switching Point) to perform the reference numeral 2 is an intelligent peripheral system (IP), which is an intelligent peripheral system connected to the SSP (1), reference numeral 3 is the SSP (1) and ISDN (Integrated Services Digital Network) VEN (Vender Feature Node) connected to the reference numeral 4 is connected to the SSP (1) STP (SignalTransfer Point) that performs a function to deliver a number of signal messages generated at all signal points of the intelligent network without error very quickly And 5 is information related to data and procedures necessary for performing the intelligent network service, and SCP is used to perform overall service control using the same. Managing a database that SCP (5) and use a SMS (Service Management System) to manage efficiently operate the subscriber data to the service control.

Here, Com.int stands for Communication Interface, and Pgm.int stands for Program Interface.

Such intelligent network services include virtual private network services (VPNs), prepaid card services, and freephone services.

In addition, the intelligent network elements include SCP, SMS, IP, etc. The SCP and SMS operate a real-time process such that the subscriber database between the two systems matches while operating the database of the intelligent network subscriber (DB).

In addition, external network elements such as customer centers (eg, WISE (Wireless Intelligent Service Environment), CCBS (Customer Care Billing System) (not shown), and network management centers (not shown) can be connected to the intelligent network SMS. Match with and perform each interlocking function.

FIG. 2 is a diagram illustrating communication between the SCP and the SMS of FIG. 1.

As shown in FIG. 2, there are a plurality of servers that process each service in the SCP 5, and these data are transferred to a communication processing block called SMSIF (Service Management System InterFace) in order to interwork with an external system. send.

In the SMSIF, data is configured from each server in the form of a definition packet and transmitted to the relay (reception function for distributing received data) which is the communication gateway of the SMS 6 through TCP / IP.

The result of the processing inside the SMS 6 is again transmitted to the SCP 5 through the blocks, and vice versa.

However, in the configuration of FIGS. 1 and 2, the communication method between the SCP and the SMS matches the information of the mobile subscriber through TCP / IP. As shown in FIG. 3 in the state in which the number of subscribers increases and the load of the system increases. In case of frequent TCP / IP operations of read () and write (), error occurs when write () is performed in a system with superior performance due to the slow performance of read () in a system with poor performance. There was a problem.

In other words, when SCP interacts with SMS, that is, when performing Transmission Control Protocol / Internet Protocol (TCP / IP) operations between different network entities, the sender of the message does not consider the capacity or performance of the receiving party. If the message is continuously delivered, an error occurs when the message is written on the sending side because the TCP / IP-related buffer on the receiving side is full.

Therefore, the function is implemented to discard the message in such a way that the TCP / IP setting is canceled and then reset, causing overloading due to data inconsistency between the different network entities and the redundancy of TCP / IP release and reset. There was a problem.

Accordingly, an object of the present invention is to allocate a buffer to a database having a FD (File Descript) over TCP / IP as a key. In addition, by allocating a database that stores message transmission data to an application using TCP / IP, if an error occurs when writing a message due to lack of SMS performance when sending a message with the SMS, the message is stored in a database whose FD is the key. If the data is stored in the buffer of the database with FD key when sending the message to SMS later, the intelligent network system stores the message transmission data storage database of the application to transmit the contents of the application buffer to the SMS when the load is reduced. The present invention provides a method for transmitting data between an SNS and an SM.

In the intelligent network system according to the present invention for achieving the above object, a feature of the data transmission method between the SPS and SM is, in the data transmission method of the intelligent network system with SCP and SMS, FD (file over TCP / IP) creating a buffer in a database whose key is descript, assigning a database storing message transmission data to an application using TCP / IP, and sending a message to an SMS system. Checking whether an error occurs when writing a message due to insufficient performance of the SMS system; and if the error occurs as a result of the check, it is determined whether the error is a message processing delay of the SMS system. Storing the message in a database, and receiving the data stored in a buffer of the database using the FD as a key. And storing the message transmission data storage database of the application program and transmitting the buffer contents to the SMS system in the application program.

1 is a block diagram of a general intelligent network system,

2 is a view showing communication between the SCP and SMS of Figure 1,

3 is a flow chart illustrating a data transmission method between the SCP and the SMS of FIG.

4 is a data transmission method between SCP and SMS in the intelligent network system according to the present invention

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

100: customer center,

200: intelligent network SMS,

300: intelligent network SCP.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of a data transmission method between the SM and SM in the intelligent network system according to the present invention will be described.

4 is a diagram illustrating a data transmission method between an SSP and an SM in an intelligent network system according to the present invention.

As shown in FIG. 4, first, a buffer is created in a database of an SCP system using a file descriptor (FD) on TCP / IP as a key.

In addition, by assigning a database that stores message transmission data to an application using TCP / IP, an error occurs when writing a message due to the lack of performance of the SMS system when sending a message to the SMS system. If a message is delayed, store the message in a database with FD as the key.

If the data is stored in the buffer of the database with FD key when sending a message to the SMS system later, the contents of the application buffer are transferred to the SMS system when the load is reduced by storing the data in the message transmission data storage database of the application. do.

Here, the program of the database whose key is FD is as follows.

FD key Data Base

typedef struct {

int FD;

char buffer [4096];

int len;

}

The program in the application database is as follows.

Apply Program Data Base

typedef struct {

int FD;

int msg_send_flag [2048];

char data [2048] [4096]

}

In other words, when performing a write operation from one system to another, first check whether another system can perform TCP / IP communication if the value is set in the len of the database whose key is FD. do.

If it can be done, it checks the len of the database with the FD as the key, and if the value is a len, the data of the database is written ().

At this time, if the TCP / IP connection is established but communication cannot be performed, the application program stores the data in the message transmission data storage database and stores the transmission data until TCP / IP communication can be performed later.

Thus, messages can be transmitted and data can be matched between two systems regardless of the performance of the system performing TCP / IP communication in this way.

As described above, the present invention has an effect of preventing the overload phenomenon between systems by controlling the data transmission flow regardless of the performance or capacity of other systems when transmitting data via TCP / IP between the SCP and the SMS processor.

In addition, the present invention has the effect of maintaining data reliability by controlling the transmission flow of data regardless of the performance or capacity of other systems when transmitting data via TCP / IP between the SCP and the SMS processor.

Claims (1)

In the data transmission method of intelligent network system with SCP and SMS, Creating a buffer in a database using a file descriptor (FD) over TCP / IP as a key; Allocating a database for storing message transmission data to an application using TCP / IP; Checking whether an error occurs when writing a message due to a lack of performance of the SMS system when transmitting a message with the SMS system; Determining whether the error content is a message processing delay of an SMS system when an error occurs as a result of the check, and storing the message in a database having an FD key if the message processing delay factor is determined as a result; And storing the data stored in the buffer of the database using the FD as a message transmission data storage database of the application program, and transmitting the contents of the buffer to the SMS system in the application program. Method of data transmission between SM and SM.