KR20000044525A - Method of loading program loaded data for exchange - Google Patents

Abstract

PURPOSE: A method of loading program loaded data(PLD) for a mobile exchange is provided to reduce a PLD loading time by excluding a relation which is unnecessary for being loaded, by considering special characteristics of the PLD when a package of the mobile exchange are applied. CONSTITUTION: A method for loading program loaded data(PLD) for an exchange comprises the steps of: composing a file header information region including loading data size information necessary for being loaded in a load-oriented processor and non-loading data size information unnecessary for being loaded, and composing a PLD file structure having a data region which allocates non-loading data regions, respectively; if a loading process of the PLD is necessary in the load-oriented processor, transmitting the file header information to the load-oriented processor, and transmitting loading data necessary for the load-oriented processor to the load-oriented processor; allocating a memory in the load-oriented processor by using the loading data size information, and recording the transmitted loading data in the allocated memory; and executing an application by using the stored loading data.

Description

How to load program loaded data for exchange

The present invention relates to a mobile switching system, and more particularly to a method for loading Program Loaded Data (hereinafter referred to as "PLD") for an exchange.

The PLD file for the exchange is divided into file header and actual data. The file header is for example the coff header and the coff header is defined in ldmdhdr which is a common file.

3 shows a PLD file structure and file header information according to the prior art. Referring to FIG. 3, the structure of the PLD file is divided into a file header and actual data as mentioned above. On the left side of the structure, a file header information structure is defined in which the file header is defined as, for example, a common file, ldmdhdr. have.

In the case of the existing mobile exchange, since all data of the PLD is loaded as shown in FIG. 3, when looking at the header of the existing PLD file, tsize: = 0, dsize includes the total PLD size (DATA size), and the loading time accordingly. It takes longer than the processor only receives the data that is actually needed. The PLD loading is described in more detail with reference to FIG. 1 as follows.

1 is a view showing a PLD loading procedure according to the prior art. Referring to FIG. 1, a functional unit related to PLD loading includes a CROS (Concurrent Relation Operating System), a DBKG (DataBase Kernel Group), and a PL (Processor Loader). In this specification, a PLD loading related functional unit 10 is collectively referred to. do. In the PLD loading-related function unit 10, CROS is a high-level operating system of an electronic switchboard, and provides a common advanced function that is effective in performing and managing complex and various large-scale application software. In the PLD loading-related function unit 10, DBKG is a core part of a subsystem of a database system, receives a data access request, classifies it according to a relation type, accesses and searches the data desired by a user, and The ability to control concurrent access, the ability to alter data, the ability to manipulate data with distributed processors on distributed processors, the ability to handle relations that exist only on disk, virtual data processing, transaction processing and online debugging Function and so on. In the PLD loading-related function unit 10, the PL is mounted in all main processors (MPs) so that the user block for the mounted processor along with an operation main process (OMP), which is responsible for system loading at the initial startup or restart of the processor. This block is responsible for loading.

The PLD loading related function unit 10 transmits the OS file header OSHead to the booter 20 of the target processor and then transmits OS file data to the booter 20. After completion of the OS data loading, the OS end signal OSEnd (check sum) including a check sum is transmitted to the booster 20 of the target processor. The booter 20 of the target processor allocates memory when the OS file header OSHead is received, and stores OS file data OSCode in the allocated memory when the OS data OSCode is received. Thereafter, when the OS end signal OSEnd (check sum) is received, the checksum is confirmed and an acknowledgment signal OSOK is transmitted to the processor.

Thereafter, the PLD loading-related function unit 10 performs PLD file loading. First, the file header information PLHead for the PLD file is transmitted to the booter 20 of the target processor, and then the actual file data PLCode is transmitted. . At this time, the size of the actual data (that is, the total PLD size) is recorded in the file header information PLHead (see FIG. 3, where "DATA size" is recorded in "dsize"). After the loading of the PLD file is terminated, a loading end signal PLEnd (check sum) including a check sum is transmitted to the booster 20 of the target processor.

When the file header information PLHead is received, the processor 20 of the target processor allocates a memory with a loading data size, and when the actual file data PLCode is received, stores the actual file data PLCode in the allocated memory as much as the loading data size. Thereafter, when the loading end signal PLEnd (check sum) is received, the acknowledgment signal PLOK is transmitted to the PLD loading related function unit 10 after checking the check sum. Accordingly, the butcher 20 of the target processor executes all load applications using the loaded PLD.

As described above with reference to FIGS. 1 and 3, in the case of the existing mobile exchange, since all data of the PLD file is loaded, the loading time is longer than the time for receiving only the data actually required. As described above, the prior art has been constrained by the application of the package due to the long loading time by applying a total package including the PLD to the mobile exchange.

It is therefore an object of the present invention to provide an improved method of loading a PLD for an exchanger.

In accordance with the above object, the present invention provides a program loaded data loading method for a switch, comprising: a file header information area including loading data size information required for loading in a processor to be loaded and non-loading data size information not required for loading; Configuring a program-loaded data file structure having a data area for allocating the loading data and the non-loading data area, and loading the program header data if the program to be loaded is loaded into the target processor; Transmitting the loading data required for the load target processor to the load target processor after transmitting to the load target processor and allocating memory in the load target processor using loading data size information included in the transmitted file header information And the transmitted loading day Recording the data into the allocated memory, and executing the application by using the stored loading data.

1 is a flowchart illustrating a PLD loading procedure according to the prior art;

2 is a flowchart illustrating a PLD loading procedure according to an embodiment of the present invention;

3 is a diagram illustrating a PLD file structure and file header information according to the prior art;

4 illustrates a PLD file structure and file header information according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the same elements in the figures are denoted by the same numerals wherever possible. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

In the embodiment of the present invention, in order to shorten the loading time when the package of the mobile exchange is applied, the PLD loading is performed by allocating only a memory area for the relation that does not need to be loaded in consideration of the specificity of the PLD of the mobile exchange. Save time More specifically, in order to shorten the PLD loading time, the present invention changes the data structure as follows.

When loading the PLD, only some data is loaded from the data of the PLD. Therefore, in the embodiment of the present invention, the PLD file structure and file head information are changed to include the entire PLD size in "tsize" in the file header information of the PLD file, and only the data size to be actually loaded in "dsize".

4 shows a PLD file structure and file header information according to an embodiment of the present invention. Referring to FIG. 4, the structure of a PLD file according to an embodiment of the present invention is divided into a file header area and a data area. The data area includes an R_DATA area for data that needs to be loaded and an E_DATA for data that does not need to be loaded. It is divided into areas and allocated. Relations that do not need to be loaded during PLD loading are placed in the E_DATA area. In addition, in the structure of the file header information shown in FIG. 4, the total size of the PLD is stored in "tsize", and only the data size to be actually loaded is stored in "dsize".

2 is a diagram illustrating a PLD loading procedure according to an embodiment of the present invention. Referring to FIG. 2, the PLD loading-related function unit 10 transmits an OS file header OSHead to a booter 20 of a target processor and then OS file data. To send. The PLD loading related function unit 10 transmits an OS end signal OSEnd (check sum) including a check sum to the booter 20 of the target processor after the OS data loading is finished. The processor 20 of the target processor allocates a memory when the OS file header OSHead is received, and then stores the OS file data OSCode in the allocated memory when the OS file data OSCode is received. Thereafter, when the OS end signal OSEnd (check sum) is received, the checksum is transmitted and the acknowledgment signal OSOK is transmitted to the PLD loading related function unit 10.

Thereafter, the PLD loading-related function unit 10 performs PLD file loading. First, the file processor information PLHead as shown in FIG. 4 is transmitted to the booter 20 of the target processor, and then the target processor is required. The actual file data PLCode (R_DATA shown in FIG. 4) is transmitted. At this time, the size of the loading data (that is, R_DATA size) is recorded in the file header information PLHead. After the loading of the PLD file is terminated, a loading end signal PLEnd (check sum) including a check sum is transmitted to the booster 20 of the target processor.

When the file header information PLHead is received, the processor 20 of the target processor allocates a memory having a loading data size (that is, "dsize"), and when the loading file data PLCode is received, file data corresponding to the loading data size is allocated to the allocated memory. Save the PLCode. Then, when the loading end signal PLEnd (check sum) is received, the checksum is transmitted and the acknowledgment signal PLOK is transmitted to the PLD loading related function unit 10. The target processor then executes all loaded applications using the loaded PLD.

As described above, the present invention shortens the PLD loading time by excluding the relations that do not need to be loaded in consideration of the specificity of the PLD of the mobile exchange in order to reduce the loading time when the package of the mobile exchange is applied. .

Claims (1)

In the program loaded data loading method for the exchange, The program loady includes a file header information area including loading data size information required for loading to the target processor and non-loading data size information not required for loading, and a data area for allocating the loading data and the non-loading data areas, respectively. The data file structure, If the load target processor needs to load the program loaded data, transmitting the file header information to the load target processor and transmitting loading data necessary for the load target processor to the load target processor; Allocating a memory in the load target processor using loading data size information included in the transmitted file header information, and recording the transmitted loading data in the allocated memory; Program loaded data loading method for a switch, characterized in that consisting of a step of executing an application using the stored loading data.