KR20010097281A - Method for diagnosing program loaded data in running mobile communication exchange - Google Patents

Abstract

The present invention is to provide a method for diagnosing PLD damage of an active mobile communication switch. When the OMP receives a PLD damage request from an MMC console, the diagnostic request is transmitted to all processors in the mobile communication switch. It checks whether the PLD diagnostic request is for a specific processor or PLD diagnostic request for a specific processor. Therefore, if the PLD diagnosis request for all processors, OMP performs its own PLD diagnosis, and then sequentially request the PLD diagnosis to other processors to perform PLD diagnosis on other processors. If the PLD diagnosis request received from the MMC console is an OMP-only PLD diagnosis request, it performs its own PLD diagnosis and transmits the result to the MMC console, and if the PLD diagnosis request is for a specific processor other than OMP, Obtains an IPC address of the IPC, requests a PLD diagnosis to the corresponding processor of the IPC address, and performs the PLD diagnosis. In this way, each main processor can automatically verify whether a PLD loaded on its memory is damaged or not, thereby making it possible to diagnose the PLD immediately and easily, thereby ensuring the integrity of the PLD and ensuring the reliability and stability of the system. To increase.

Description

Method for diagnosing program loaded data in running mobile communication exchange}

The present invention relates to diagnosing whether PLD (Program Loaded Data) of each main processor of the mobile communication exchange is damaged, and in particular, to automatically verify whether PLD loaded on the memory of all the main processors in the operating exchange is damaged. Therefore, the present invention relates to a method for diagnosing PLD damage of an operating mobile communication switch, which can immediately and easily diagnose PLD damage, thereby ensuring the integrity of the PLD.

In the conventional method of verifying the PLD of the mobile communication exchange, a backup of a database in operation in the field (backup) is generated and a PLD is generated by a database generator, and it is solved to the state before making it a PLD again. Therefore, the PLD data and the unfolded PLD data were compared before the operation of the mobile communication switch, respectively, to confirm the mutual difference. This check was a waste of human and time resources because the operator had to manually check it manually and was inefficient. Also, by backing up the PLD in operation and using the backed up PLD, it was difficult to diagnose the immediate damage to the PLD of the system in operation.

Therefore, the present invention has been proposed to solve the above conventional problems, the object of the present invention is

Upon receiving a PLD damage diagnosis command from an operator at an active exchange, each main processor can automatically verify whether a PLD loaded on its memory has been damaged, thereby promptly and easily diagnosing PLD damage. The present invention provides a method for diagnosing PLD damage of an active mobile communication switchboard to ensure the integrity of the PLD and to increase the reliability and stability of the system.

In order to achieve the above object, a method of diagnosing PLD damage of a mobile communication switch operating in accordance with the present invention,

A first step of checking whether the diagnosis request is a PLD diagnosis request for all processors or a PLD diagnosis request for a specific processor when the OMP receives a PLD failure diagnosis request from the MMC console;

If the result of the test indicates that the PLD diagnosis request is for all processors, OMP performs its own PLD diagnosis, and then obtains the IPC address of another processor to perform the PLD diagnosis request of another processor, and then PLDs to the corresponding processor of the IPC address. Requesting a diagnosis;

A third step of performing a PLD diagnosis of the OMP and transmitting the result to the MMC console when the PMP diagnosis request of the OMP is performed;

A fourth step of obtaining an IPC address of a corresponding processor if a PLD diagnosis request is made for a specific processor other than OMP, and requesting a PLD diagnosis to the corresponding processor of the IPC address;

The method receiving the PLD diagnosis request of the second and fourth steps is characterized in that the method performs a fifth step of performing its PLD diagnosis and transmitting the result to the OMP.

1 is a block diagram of a general mobile communication switch,

FIG. 2 is a block diagram of the internal main processor of FIG. 1;

3 is a block diagram of each main processor and MMC console block of the mobile communication switch to which the present invention is applied;

4 is a structural diagram of a PLD in a mobile communication exchange;

5A, 5B and 5C are flowcharts illustrating a method for diagnosing PLD damage of an operating mobile communication switch according to the present invention.

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

5: OMP 10: MMP

15: NTP 20: INP

25,26: LRP 30,35: ASP

100: MMC console

Hereinafter, a method for diagnosing PLD damage of a mobile communication switch in operation according to the present invention as described above will be described in detail with reference to the accompanying drawings.

1 is an internal block diagram of a general mobile communication switch.

The processor of the mobile switching center is divided into a main processor (MP) and a peripheral processor (PP). Each of these processors is a high performance central inter-processor communication that serves as a backbone for IPC communication throughout the exchange. Unit (High Performance Central IPC Communication Unit) 50.

Since the PLD is loaded into the memory of the main processor, the present invention will be described.

The main processor of the mobile switching center includes an operation and maintenance processor (OMP) 5, a man machine communication processor (MMP) 10, a number translation processor (NTP) 15, and an interconnection network processor (INP) 20), a plurality of Location Register Processors (LRPs) 25 and 26, and a plurality of Access Switching Processors (ASPs) 30 and 35.

The OMP 5 performs maintenance, network management, billing, statistics, and database management throughout the mobile communication exchange. The MMP 10 performs input / output control between an operator and a mobile communication exchange. The NTP 15 performs number translation and routing function control. The INP 20 performs a control function for performing fault detection, recovery, and processing of the internal communication path of the mobile communication exchange. The LRP 25 performs a control function for managing visit location information of the mobile subscriber. Each ASP 30, 35 performs control functions for call flow control, statistical measurement, collection and reporting, billing measurement and reporting.

An internal block configuration of each main processor MP of the mobile communication exchange as described above is shown in FIG.

Except for OMP (5) and MMP (10), MP has redundant implementation of processor communication controller board assembly (PCCA), main processor & memory management assembly (MPMA), and duplication communication control assembly board (DCCA). Is further provided with a redundant mass storage interface assembly (MSI). The MMP 10 further includes a Port Switching Adapter Assembly (PSAA) and an Input Output Interface Assembly (IOIA) in a component of the OMP 5.

3 is a block diagram of a main processor and a MMC console of a mobile communication switch to which the present invention is applied.

Through the MMC console 100, the operator transmits a PLD damage diagnosis diagnosis request to a mobile communication switch in operation, and receives a result of performing PLD damage diagnosis from each main processor.

4 is a PLD structure diagram of a mobile communication switch.

The PLD is a real database of mobile communication exchangers and exists for each main processor, and a database is constructed according to the characteristics of the main processor.

DB Header contains all the information of PLD, GDIR (Global Directory) has the address of RDIR and indicates whether it is local data or global data. RDIR (Relation Directory) contains the address of each relation and contains all information about the relation. In addition, RDIC (Relation Dictionary) has information about attribute information of each relation. This PLD structure is constructed sequentially.

Where relation is information in a two-dimensional table, attribute is a column in the relation two-dimensional table, and tuple is a row in the relation two-dimensional table.

5A, 5B, and 5C are flowcharts illustrating a method for diagnosing PLD damage of an operating mobile communication switch according to the present invention.

When the OMP 5 receives the PLD damage diagnosis diagnosis request from the MMC console 100, it is necessary to check whether the diagnosis request is a PLD diagnosis request for all processors in the mobile switching center or a PLD diagnosis request for a specific processor. Step 1; As a result of the check, if the PLD diagnostic request for all processors is performed, the OMP 5 performs its own PLD diagnosis, and then obtains an IPC address of another processor to perform a PLD diagnosis request of another processor, and obtains the corresponding IPC address. Requesting a PLD diagnosis from a processor; A third step of performing a PLD diagnosis of the OMP and transmitting the result to the MMC console 100 if the PLD diagnosis request is OMP; A fourth step of obtaining an IPC address of a corresponding processor if a PLD diagnosis request is made for a specific processor other than the OMP (5), and requesting a PLD diagnosis to the corresponding processor of the IPC address; Upon receiving the PLD diagnosis request of the second and fourth steps, the processor performs a fifth step of performing its own PLD diagnosis and transmitting the result to the OMP.

The PLD diagnosis method includes diagnosing whether a DB header area is damaged in a PLD area in a memory (ST11-ST19); Diagnosing whether a lock table area is damaged in the PLD area (ST20-ST25); Diagnosing whether a Rep Table region is damaged in the PLD region (ST26-ST31); Diagnosing whether a direct table area is damaged in the PLD area (ST32-ST37); Diagnosing whether a GDIR table region is damaged in the PLD region (ST38-ST43); Diagnosing whether a region is broken by relation among the PLD regions (ST44-ST55); Diagnosing whether the RDIR region is damaged in the PLD region (ST56-ST57); Diagnosing whether the RDIC region is damaged in the PLD region (ST58-ST59) is performed.

Referring to the method for diagnosing PLD damage of the mobile communication switch in operation according to the present invention as described above is as follows.

The present invention grasps the structure of the PLD, so that each specific area (Header, GDIR, RDIC, absolute change is impossible) for data that does not change (memory PLD, information that does not change on a memory and does not change even on a disk). Obtain a CheckSum value (all values of a specific area plus a value) in advance and generate a PLD in the write state, and load the generated PLD to each main processor of the mobile communication exchange. .

After loading, the MMC console 100 transmits a request for performing a memory PLD damage diagnosis command received from an operator to the OMP 5 of the mobile communication switch.

The OMP 5 then checks whether this diagnostic request is a PLD diagnostic request for all processors in the mobile switching center or a PLD diagnostic request for a particular processor.

As a result, if the PLD diagnostic request for all the processors, the OMP 5 first performs its own PLD diagnosis. Thereafter, if the second processor read is the MMP 10, the IPC address information of the MMP is read, and a PLD failure diagnosis request is transmitted to the MMP 10. Then, the DBSG of the MMP 10 performs its own PLD damage diagnosis. When the diagnosis is completed, the OMP 5 is notified that the diagnosis of the PLD damage of the MMP 10 is completed.

The OMP 5 reads the name of the third processor to be diagnosed and the corresponding IPC address, and requests the third corresponding processor to diagnose whether the PLD is damaged. Therefore, when the diagnosis is completed, the PLD is broken or not for all processors in the same manner by notifying the OMP 5 of completion.

However, if the PLD damage request received from the MMC console 100 is a PLD diagnosis request only for the OMP 5, the PLD diagnosis is performed and the result is transmitted to the MMC console 100.

However, if the PLD diagnosis request received from the MMC console 100 is a PLD diagnosis request for a specific processor other than the OMP 5, the IPC address of the processor is obtained, and the PLD diagnosis is requested to the corresponding processor of the IPC address.

Therefore, the processor that receives the PLD diagnosis request performs its own PLD diagnosis and transmits the result to the OMP.

Now, a method of diagnosing whether a PLD is damaged by a processor receiving a PLD diagnosis request will be described.

Upon receiving the PLD diagnosis request during operation, the processor diagnoses whether the DB Header area is damaged among the PLD areas in its memory (ST11-ST19).

That is, the checksum value recorded when the DB Header area is offline is read, the checksum value is calculated by adding the start address to the end address of the DB Header area, and the calculated checksum value is compared with the recorded checksum value. Therefore, if the two values are wrong, it is diagnosed as a damage of DB Header area and if it is the same, it is judged as normal and the message is printed immediately on the operator console.

Thereafter, the lock table area is diagnosed as damaged (ST20-ST25), and the method thereof is performed in the same manner as the method for diagnosing the damaged DB Header area. Here, the lock table can be locked so that it is not used elsewhere when a specific relation is used. It is a table that stores information about this.

Then diagnose whether or not the Rep Table area is broken (ST26-ST31). Here, the Rep Table is a table that stores information on where the relation is duplicated when the same relation is used in multiple processes.

Then, it is diagnosed whether the direct table area is damaged (ST32-ST37). In this case, when accessing a relation, a direct table is usually accessed by accessing a DB to obtain a corresponding address and then accessing the memory. A direct table is a table that stores information about a relation to directly access a memory without accessing the DB.

Then, it is diagnosed whether the GDIR table area is damaged (ST38-ST43). Then, the area of each relation is diagnosed as damaged (ST44-ST55), the RDIR area is diagnosed as damaged (ST56-ST57), and the RDIC area is diagnosed as damaged (ST58-ST59).

As described above, in the method of diagnosing PLD damage of the mobile communication exchange in operation according to the present invention, when an operation of the PLD is received from the operator in the operating exchange, the OMP determines whether the PLD is damaged in the memory of which processor. It is possible to diagnose PLD damage immediately and easily by judging whether or not the PLD is damaged by requesting the main processor to verify whether the PLD is damaged or not. It is effective to be. In addition, the integrity of the memory PLD is guaranteed by checking whether the PLD is damaged during operation, and the operational stabilization can be improved by enabling immediate response when checking the damage.

Claims (2)

A method for diagnosing whether a PLD in a memory of a processor in a mobile communication switch is broken, A first step of checking whether the diagnosis request is a PLD diagnosis request for all processors or a PLD diagnosis request for a specific processor when the OMP receives a PLD failure diagnosis request from the MMC console; If the result of the test indicates that the PLD diagnosis request is for all processors, OMP performs its own PLD diagnosis, and then obtains the IPC address of another processor to perform the PLD diagnosis request of another processor, and then PLDs to the corresponding processor of the IPC address. Requesting a diagnosis; A third step of performing a PLD diagnosis of the OMP and transmitting the result to the MMC console when the PMP diagnosis request of the OMP is performed; A fourth step of obtaining an IPC address of a corresponding processor if a PLD diagnosis request is made for a specific processor other than OMP, and requesting a PLD diagnosis to the corresponding processor of the IPC address; Upon receiving the PLD diagnosis request of the second and fourth steps, the processor performs a fifth step of performing its own PLD diagnosis and transmitting the result to the OMP. Diagnostic method. The method of claim 1, wherein the PLD diagnostic method, Diagnosing whether a DB Header area is damaged in the PLD area in the memory; Diagnosing whether a lock table area is damaged in the PLD area; Diagnosing whether a Rep Table region is damaged in the PLD region; Diagnosing whether a direct table area is damaged in the PLD area; Diagnosing whether a GDIR table region is damaged in the PLD region; Diagnosing whether a relation-specific region is damaged in the PLD region; Diagnosing whether an RDIR region is damaged in the PLD region; And diagnosing whether the RDIC region is damaged in the PLD region.