KR20010003246A - Feature code management method using shared memory in HLR - Google Patents

Abstract

PURPOSE: A method for managing feature codes using a shared memory in a HLR(Home Location Register) is provided to modify and output feature codes without changing the structure of an MMDB(Main Memory Data Base) by executing a management function for feature codes after configuring a feature code table using a shared memory in the HLR of a communication system. CONSTITUTION: A function to get and attach a shared memory is summoned in case of loading a TDBMD(Tandem Data Base Management Daemon) processor to initialize feature codes(S1). If the TDBMD processor is loaded, it is discriminated whether a specific file storing a feature code table exists in a specific directory(S2). If the specific file exists, the file is copied in the shared memory(S3). If the specific file doesn't exists, the contents of the feature code table are stored with a specific file name in a specific directory after a predefined feature code initial value is set and copied in the shared memory(S4,S5).

Description

Feature code management method using shared memory in HLR}

The present invention configures a feature code table using a shared memory in a home location register (hereinafter referred to as 'HLR') of a communication system, and then manages a feature code. The present invention relates to a method of managing a feature code using shared memory in an HLR which enables a feature code to be changed and output without changing the structure of a main memory data base (MMDB).

In addition to the IS41.C upgrade, the management function of the feature code used in the basic exchange of the communication system has been performed in the HLR.

In the feature code management method in the HLR, conventionally, only a single code in which feature code processing is defined is allowed. To change, add, or delete a header file, a source file is included. It was possible to change.

In addition, since hard coding is used, there is no need to save a file separately.

For example, if you press "* 50" and "Send" for VMS unconditional activation, the VMS unconditional code value "* 50" was not easy to change.

To change the VMS unconditional code value "* 50", change the code value "* 50" corresponding to the VMS unconditional code defined in the header file and the source code to a desired value, and recompile and link it. Link had to be applied to the HLR.

In order to solve the above problems, a table for handling feature code data must be configured in the HLR.

However, the table may be added to the MMDB of the HLR. However, in this case, the structure of the database MMDB is changed, and the header file and the library file must be changed, as well as the migration from the MMDB of the HLR. There was a problem that the work was followed.

The present invention has been made to solve the above problems, the object of which is to configure the feature code table using the shared memory in the HLR of the communication system and then to perform the function to manage the feature code without changing the structure of the MMDB The purpose of the present invention is to provide a feature code management method using shared memory in an HLR that enables the modification and output of feature codes.

1 is a block diagram of a home location register to which a feature code management method using a shared memory of the present invention is applied;

2 is a flowchart illustrating a feature code management method using a shared memory in a home location register according to the present invention;

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

1: TDBMD process

2: FEA process

3: shared memory

Feature code management method using a shared memory in the HLR of the present invention to achieve this purpose, check whether the file that stores the feature code table at the time of the process loading, if the file exists to read the content of the file and share If the file is copied to the memory and the file does not exist, the feature code initial value is set to be copied to the shared memory and simultaneously stored as a file.

Hereinafter, a feature code management method using a shared memory in an HLR according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of an HLR to which a feature code management method using a shared memory according to the present invention is applied, and an initial value of a feature code during a process loading by processing a feature code change operation, etc. A Tandem Database Management Daemon (TDBMD) process (1) that handles settings and file input / output operations, and an FEA process (2) that references code stored in shared memory (3) used as feature code tables; It consists of a shared memory 3 which can be shared by the TDBMD process 1 and the FEA process 2 and used as a feature code table and which acts as a memory for storing files in an emergency.

The shared memory 3 is operated while the TDBMD process 1 and the FEA process 2 share data, and one of the processes 1 and 2 initializes the feature code table.

The shared memory 3 used as the feature code table needs a routine for storing a file in case of an emergency.

The feature code management method using the shared memory in the HLR according to the present invention having the above configuration will be described with reference to the operation flowchart of FIG. 2.

First, when the TDBMD process 1 is loaded to initialize the feature code, a function of getting and attaching the shared memory 3 in the library is called (S1).

When the TDBMD process 1 is loaded in step S1, it is determined whether a specific file that stores the feature code table exists in a specific directory (S2).

As a result of the determination in step S2, if a specific file exists, the contents of the file are read and copied to the shared memory 3 (S3). If a specific file does not exist, a predetermined feature code initial value is set to set the shared memory. After copying to (3) (S4), the contents of the feature code table are stored with a specific file name in a specific directory (S5).

On the other hand, even when the FEA process 2 is loaded, a function for getting and attaching the shared memory 3 in the library is called, and when the feature code is sent by the subscriber, the FEA process 2 is shared memory. Refer to the feature code table consisting of (3) for processing.

When the operator changes a specific feature code by using a Man-Machine Command (MMC) command, the TDBMD process 1 updates the shared feature 3 with the specific feature code changed by the operator and changes the content. Save it as a file.

The present invention as described above is useful for adding a table having specific information in all systems using the MMDB, and can be applied to information sharing between processes using a shared memory and file input / output processing of information.

As described above, the present invention can implement a feature code table using a shared memory to handle feature codes without affecting the structure of the MMDB of the HLR, and when a feature code is changed, a library including a header file And it minimizes the change of the source code, it is possible to stably process the changed feature code even in the system abnormality, there is an advantage that does not need a separate initialization and file input / output operation.

Claims (3)

When loading the TDBMD process 1 to initialize the feature code, a first step of calling a function to get and attach the shared memory 3 in the library, and in the first step the TDBMD process 1 When loaded, the second step of determining whether there is a specific file storing the feature code table in a specific directory, and if the specific file exists as a result of the determination of the second step, read the contents of the file and copy it to the shared memory 3. As a result of the third step and the determination of the second step, if a specific file does not exist, a predefined feature code initial value is set and copied to the shared memory 3, and a file name specific to a specific directory is used to set the feature code table. A method of managing feature codes using shared memory in a home location register, characterized by comprising a fourth step of storing contents. 2. The FEA process (2) according to claim 1, wherein when the FEA process (2) is loaded, a function for getting and attaching the shared memory (3) in the library is called, and then the FEA process (2) at the time of sending a feature code by the subscriber. Processing by referring to a feature code table composed of shared memories (3). 2. The method according to claim 1, wherein when an operator changes a specific feature code by using an MMC instruction, the TDBMD process 1 updates the shared feature 3 in the shared memory 3 by updating the specific feature code that the operator changed. Feature code management method using a shared memory in the home location register, characterized in that the storage.