KR100231699B1 - A method of data creation in PSTN subscriber - Google Patents

Abstract

The present invention relates to a PSTN subscriber data generation method based on a software component, and to componentize all the data used in the process of performing the data processing function, the library and the already proven data and software It provides a data generation method that can improve the reliability and economic efficiency of S / W by reusing it in the form, and subscriber data processing is a form that occurs frequently through a number of input terminals while the system is in operation. Almost all of these data processing functions should be able to eliminate the delay factor when executing the command in consideration of the time taken by the DBMS and maintain the independence of data processing.

Therefore, in the process and file configuration for processing these data, the process and file corresponding to each command is input to generate 1: 1 and process simultaneously, thereby increasing the efficiency of operation and maintenance. By separating the data and the program completely, and reusing the data and the S / W component in the form of a proven library, the reliability and economics of the program for generating the subscriber data are guaranteed.

Description

A method of data creation in PSTN subscriber}

The present invention generates information in an operating state for an analog subscriber to accommodate a subscriber of a Public Switched Telephony Network (hereinafter referred to as a PSTN) in an Asynchronous Transfer Mode (hereinafter referred to as ATM) exchange. It is about how to generate a series of data, such as change and confirmation.

In the conventional PSTN, all data targeted for processing a series of data such as creation, modification and confirmation of new information while operating for analog subscribers are composed of a database, and the input parameters required by the operator are primarily Only if it can be done after checking compliance.

In addition, the program creates a specification file that contains all the data commonly used in the various blocks of the program execution.

However, in this structure, it is difficult to maintain the mutual correspondence between each data by including the data not used in the block, and it has the disadvantage of being uneconomical and unreliable because it includes an error occurrence factor.

The present invention solves the above shortcomings in providing a data generation method for ATM-PSTN interworking call processing and operation / maintenance that can be matched with PSTN subscribers to absorb and accommodate subscribers of existing PSTN networks in ATM networks.

Data used in the process of data processing is performed because the OS, DBMS, and application software are significantly different between the existing PSTN system software and ATM system software, and conceptually different in terms of the environment for developing the software. Its purpose is to provide a data generation method that can improve the reliability and economic efficiency of S / W by compiling them as a basic unit of data representation and reusing already proven data and S / W in library form.

1 is a system control structure diagram illustrating PSTN interworking of an ATM exchange system according to the present invention;

2 is a relational configuration diagram of a software block according to the present invention;

3 is a software component matching configuration diagram of the present invention;

4 is a process and file diagram of the present invention;

5 is a flowchart for processing PSTN subscriber data to which the present invention is applied.

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

100: ATM Local Switching Subsystem (ALS)

110: ATM local switching subsystem / relay line (ALS / T)

112: trunk line interface module (TIM)

113,123: Access Switch Network Module (ASNM)

113a, 123a, 310a: access switch (ASLH)

114,124 Call Connection Control Processor (CCCP)

120: ATM local switching subsystem / subscriber (ALS / S)

121: subscriber interface module (SIM)

122: connection connection cutting module (CLSM) 200: interworking subsystem (IWS)

210: ATM interworking module (AIWM) 220: time switch module (TSWM)

230: digital connection access module (DLAM)

240: global bus 250: signal service module (SSM)

260: Sub Highway

300: ATM Central Switching Subsystem (ACS)

310: interconnect switch network module (ISNM)

320: operation maintenance processor (OMP) 400: intermodule interface (IMI)

510: analog subscriber control block (ASCNF)

520: Number data processing block (NDHNF)

530: telephone communication device maintenance processing block (TDMHNF)

540: subscriber data processing block (SDHNF)

550 Execution Control Block (ECF)

560 Database Management System (DBMS)

610: S / W component group 611: relation

612: Domain 613: mode

614: signal 615: SYN

616: Process 617: Library

618: input message 619: output message

620: Interface file 621: DB related definition file

622: Program definition file 623: I / O message definition file

630: source file 640: executable file

710: main process 720: input message receiver

730: Process for processing subscriber data generation function

In order to achieve the above object, the present invention provides an ATM local switching subsystem (hereinafter referred to as ALS), an ATM central switching subsystem (hereinafter referred to as ACS), and an interworking subsystem (Inter Working Subsystem (hereinafter referred to as IWS) In an ATM switching system consisting of three subsystems, IWS is added to absorb subscribers of the existing PSTN network.

Access Switch Network Module (ASNM), which performs local switching and aggregation functions, number translation and route control, system level maintenance, test, billing, In the ATM switching system consisting of ACS that performs various input / output control functions with the operator as well as statistical functions, and IWS subsystem for matching analog subscribers to ATM, new information while operating for analog subscribers in the existing PSTN network. All relevant data that are targeted to perform a series of data processing functions such as creation, modification and verification of data are composed of database, and all data processing processed at the request of the operator should be done immediately in operation.

The subscriber data generation method of the present invention is applied to an ATM switching system that absorbs and accepts a PSTN subscriber.

The analog subscriber information generation function actually means giving a directory number (hereinafter referred to as a DN) which is in a hardware serviceable state so that a user can be provided with a service.

To this end, when a subscriber generation request message is received from an operator through an operator interface (hereinafter referred to as HMI) terminal, a first step of auditing suitability regarding the relationship between input parameters of the received command and whether or not it is missing is appropriate. A second step of storing the input information and driving the process, if the process is determined, a third step of checking the implementation and operation status of the destination ALS if the process configured for each instruction is started, and checking whether the subscriber can be registered. Step 4, the fifth step of updating the relevant database to the initial state when the availability of the corresponding subscriber line is confirmed, the sixth step of generating and outputting a normal processing result message and an error message when each step error occurs Subscriber day to absorb and accept PSTN subscribers at an ATM exchange It characterized by providing a forming process.

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

1 is a system control structure diagram illustrating PSTN interworking of an ATM switch according to the present invention. The ATM switch system includes three subsystems, ALS 100, ACS 300, and IWS 200, and is a subscriber of an existing PSTN network. IWS 200 is added to absorb the water.

The ALS 100 is classified into ALS / S (Subscriber) 110, ALS / T (Trunk) 120 and ALS / ST which is a mixture of ALS / S and ALS / T according to its function. In the ALS / S 110, the call processing function for the subscriber accommodated in the exchange, and the inter-station relay line call processing function in the ALS / T 120 are called a Call and Connection Control Processor (CCCP) ( 114 respectively.

An access switch network module (hereinafter referred to as an ASNM) 113 is a switch for transmitting cells in basic units, and performs local switching and aggregation functions.

The ACS 300 performs various input / output control functions with the operator as well as a number translation function, route control, system level maintenance, test, billing, and statistical functions, which are commonly required call processing functions in each ALS 100.

The IWS 200 matches an ASNM 123 of the ALS / S 120 with an Inter-Module Interface 400 as a substem for matching a PSTN subscriber to an ATM. .

The IWS 200 includes a subscriber board performing a physical layer function for connecting each subscriber station to a communication line, a layer 2 processor performing a data link layer processing function, a layer 2 and 3 message conversion function in conjunction with a layer 2 processor, and A digital subscriber matching processor that performs transceiving and transmission functions between layer 3 messages and inter-processor communication (IPC) signals, and time slot interfaces of pulse code modulation (PCM) data A Time Switch Local Processor (hereinafter referred to as TLSP) which performs a Time Slot Interface (hereinafter referred to as TSI) function and various beeping transmission / reception functions is mounted.

In addition, an inter-working processor (hereinafter referred to as IWP) of the IWS 200 maps a call channel set in a call processing process to a 64Kbps constant bit rate (hereinafter referred to as CBR) virtual connection on a channel basis. ATM Adaptation Layer type 1 (AAL1) processing function for user information of cell assembly / disassembly for digitized call information and IAAL for IPC matching with system. IPC AAL) function.

The analog subscriber circuit mode call control (ACC) software block mounted on the CCCPs 114 and 124 of the ALS 100 manages the outgoing / outgoing call processing function and processing state of the analog subscriber. It functions as an analog subscriber interface (hereinafter referred to as ASI), a virtual path identifier (hereinafter referred to as VPI), and a virtual channel identifier (VPI) of IWS for digital subscriber call processing service. UNI Link Resource Handling Function (hereinafter referred to as ULRHF) and switch link of CCCP for allocating / returning user-network interface (hereinafter referred to as UNI) resources. CCCP's Switch Link Resource Handling Function (hereinafter referred to as SLRHF), time switch, and the like for resource allocation and return. Global service control block of the CCCP for connecting and disconnecting the time switch and local service interface (hereinafter referred to as TLSI) of the IWS 200 for connecting and disconnecting call equipment, and for announcement and conference call devices. It works with software blocks such as Service Control Narrow-band Function (hereinafter referred to as GSCNF) and Number Translation Control Narrow-band Function (hereinafter referred to as NTRNF) for station number and called number translation.

In addition, the ACS 300 interworks with the IWP of the IWS 200 to allocate and release a routing tag TAG of an ATM cell used for transmitting and receiving call data of an analog subscriber.

FIG. 2 is a diagram illustrating a relationship of a software block according to the present invention, in which an analog subscriber control block (ASCNF) 510 for performing a call processing of a PSTN subscriber is installed. Number Data Handling Narrow-band Function (hereinafter referred to as NDHNF) 520 for managing and confirming a processor and a line number (hereinafter referred to as LN), and a telecommunication device for managing the state of a subscriber line. A maintenance block (Telephony Device maintenance handling narrow-band function, hereinafter referred to as TDMHNF) 530, a subscriber data handling block for receiving an operator's subscriber information generation request command and changing the subscriber database (Subscriber Data Handling Narrow-band Function, hereinafter) SDHNF) (540), an execution control block (ECF) 550 for transmitting the operator's request to the application program, etc. It consists of a process that is processed by an Operation and Maintenance Processor (OMP) and a Call Connection Control Processor (CCCP) to generate subscriber data. In this case, the DBMS 560 may be used to recover the previous database when data update processing is not performed because the overall processing may not be terminated due to a failure and an abnormal state of the corresponding processor. Apply the transaction function provided by.

3 is a software component matching configuration diagram of the present invention, in order to provide a subscriber data generation method for absorbing and accepting a PSTN subscriber in an ATM switch, data required in the process of performing each process is a minimum unit of a meaningful data representation method. It is composed of 9 component groups, including relation 611 domain 612, mode 613 and signal 614, process 616, library 617, and input / output messages 618 and 619. By doing so, it is organized in the hierarchical structure of UNIX file system.

Each S / W component 610 is a database (DB) interface definition file 620 from a relation 611, domain 612, and mode 613 group, which is a component related to database construction, so that related data can be performed by accessing related data. The program definition file 622 from the signal 614, process 616, and library 617 groups, and the I / O message definition file 623 from the I / O message 618, 619 groups, respectively. It is configured in such a way as to prevent the redundancy declaration of data to include only the necessary data and to reuse the software in the form of data and a library 617.

4 is a process and file configuration diagram of the present invention, which comprises a main process 710, an input message receiver 720, a process 730 for processing a subscriber data generation function, and a software component group 610. .

The data generation method for accommodating a PSTN subscriber in an ATM switch is performed in the preceding step, when the S / W blocks are operated in a normal state and the main process of the SDHNF block is operated, an input command is transferred to the SDHNF block, which is a subscriber data processing block. It can be accessed to update the data.

As described in the process and file configuration of FIG. 4 for processing these data, the main process receives an input command and creates a process for processing the command.

Subscriber data processing occurs at the same time multiple times through multiple input terminals while the system is running. Therefore, most data processing functions using the database eliminate delays when executing commands in consideration of the time taken by the DBMS. In order to maintain the independence of data processing, each process inputs a command and a file corresponding to each command and generates a 1: 1 process.

When the data processing ready state for the subscriber data generation is completed, a process is generated for an input command that occurs frequently through a plurality of input terminals, and a data generation procedure is performed according to the detailed drawings.

FIG. 5 is a flowchart illustrating a PSTN subscriber data processing to which the present invention is applied. When a subscriber data generation request message is received from an operator through an operator terminal (S1), the received information for data generation is stored (S2). The suitability of the range of the input parameters, the relationship between the input parameters, and whether they are missing is determined (S3).

If an error occurs in the conformity check for the input command, and outputs an input command error message (S4), and if normal, drives a process for processing the input command (S5).

After the process for generating subscriber data is started, during the process of generating subscriber data, if the data creation task is not completed and an error occurs, the data transaction function applied to recover the previous database is driven.

Check the transaction processing flag for registration of this transaction function and change it to true if it is false.

In order to check the mounting state and the operating state of the destination processor according to the parameter requested by the operator, it is checked whether the corresponding CCCP is in the mounted state and the operating state is normal (S6). In case of abnormality, an error message is output (S4).

If the processor is determined to be in a normal state, it is determined whether the corresponding line is an analog subscriber and accesses a database of the subscriber line state to determine whether the corresponding line is a mounted line and a serviceable state (S7).

After the determination, if the line status is abnormal due to no response of the counterpart process and service unavailable for the line, the corresponding error message is outputted and terminated (S4). If the service is available, the subscriber is registered from the switching center data processing block. If it is possible to determine whether or not to check (S8), if not possible, outputs an error message (S4), and if possible, transmits a registration request confirmation message with relevant information and waits.

If a response message is received from the exchange data processing block, an error message is output to correct the cause if the status code is not registered (S4). If the status is enabled, an error occurs during the database update. If not, register the transaction processing function provided by the DBMS to recover to the previous database (S9), and update the relevant data base to the initial state (S10).

If the database update is normally completed, a process result message is output (S11) and the subscriber data generation process is terminated.

As described above, the subscriber data generation method based on the S / W component of the present invention is newly realized for interworking with a PSTN exchanger in an ATM exchange to accommodate subscribers of an existing PSTN network in an ATM exchange network. In order to reduce unnecessary interworking during data processing and to generate data, all necessary data are separated into components and accessed according to the interface file by type, thus eliminating the possibility of error due to duplicate declaration of data. By creating and processing a process corresponding to 1: 1, the efficiency of operation and maintenance is increased.

In addition, the program completely separates the data from the program and reuses the S / W component, which is data in a library form, which is proven, thereby ensuring the reliability and economical efficiency of the program for generating subscriber data.

Claims (8)

ATM Local Switching Subsystem (ALS) that performs call processing and inter- trunk relay call processing for subscribers accommodated in ATM switch and access switch network module that performs local switching and aggregation functions as a basic unit. (ASNM), an ATM central exchange subsystem that performs call processing functions common to each ALS, number translation and route control, system-wide maintenance, testing, billing, and statistics as well as various I / O control functions with the operator. ACS), an ATM switching system comprising an interworking subsystem (IWS), which is a subsystem for matching PSTN subscribers to ATM switches, A first step of storing input information and checking whether a relationship between the input parameters of the received command and whether there is a missing message is received when a subscriber generation request message is received from a system operator through an HMI terminal; A second process of driving a corresponding process for each command when it is determined whether an input parameter is appropriate; A third step of confirming an implementation and operation state of a destination ALS when a process configured for each instruction is driven; A fourth process of checking whether the subscriber can be registered; A fifth process of updating a related database to an initial state when it is confirmed whether service is available for the corresponding subscriber line; And a sixth process of generating and outputting a normal processing result message and an error message when an error occurs at each step. The method of claim 1, wherein the first process is A first step of storing a command structure divided by a command unit provided by a man-machine subsystem (MMS) to process a command when a subscriber generation request message is received through the HMI operator terminal; And a second step of cross comparing by number and flag of input parameters to check for a relationship between the input parameters of the received command and whether they are missing. How to generate data. The method of claim 1, wherein the second process A first step of creating a corresponding process to correspond to each instruction received from the operator through the HMI terminal and a process for handling the instructions one-to-one to maintain independence when each instruction is executed; And a second step of organizing one file for each process to facilitate maintenance. The method of claim 1, wherein the third process is When a process for generating subscriber data is created, it checks the implementation and operation status of the Call Connection Control Processor (CCCP) of the ALS subsystem, which is the destination processor, in order to maintain the consistency of the lost database when an error occurs during the execution of the instruction. PSTN subscriber data generation method comprising the step of checking the service type and status. The method of claim 1, wherein the fourth process A first step of confirming whether the corresponding subscriber can be registered by the switching center data processing block when the state of the processor for generating subscriber data is in a serviceable state; Outputting an abnormal processing message when a response waiting time has elapsed for a non-response due to an abnormal state of the counterpart processor; And a third step of analyzing the status code when receiving the response message and aligning it with the exchange number of the corresponding subscriber number. The method of claim 1, wherein the fifth process Registering the transaction processing provided by the DBMS to recover to the previous database when the related database does not match, and ending the transaction after recovering the database; And a second step of updating the database to an initial state by accessing a database in which corresponding analog subscriber information and subscriber data are defined after performing the first step. The method of claim 1, wherein the sixth process A first step of outputting a normal processing result and an abnormal processing result message in a 1: 1 correspondence by an index of a command, that is, a command response number (CRN) number; And a second step of generating and outputting a message according to an error classification code defined in an output message description (OMD) when an error occurs in each step. The method of claim 1, A first step of configuring a processing process and a file corresponding to 1: 1 for each instruction to process data in order to provide a subscriber data generation method for absorbing and accepting a PSTN subscriber in an ATM switch; All necessary data in the above execution process are classified into 9 component groups of relations, domains, modes and signals, modes, processes, and I / O messages related to the database. And a second step of designing to include only data to be used at the time of use.

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