KR100250942B1 - Time-synchronizing method between mobile exchanger and management interface module - Google Patents

Abstract

PURPOSE: A method for equalizing time between an MSC(Mobile Services Switching Center) and an OMID(Operation and Maintenance Interface Device) is provided to adjust time synchronization between the MSC and the OMID, so as to supply stable time information to every processor and supply a holiday management function by an operator for supporting charging functions. CONSTITUTION: A system clock operation software block of an OMP(Operation and Maintenance Processor,11) inside an MSC(Mobile Services Switching Center,10) periodically generates reference time information every one minute, for bothway transmission to a duplexed OMID(Operation and Maintenance Interface Device,20). The transmitted time information passes a time receiver enabling the receiving to the system clock operation software block of the OMP(11), through an IPC(Inter-Processor Communication) system. The received time information passes a time verifier verifying whether the time information is appropriate. The verified time information passes a time comparator for comparison with the time of the OMID(20). And the time information passes a time regulator regulating time according to an error of the comparison.

Description

Visual Matching Method of Operation and Maintenance Interface Unit of Mobile Communication Switch

1 is a configuration diagram of a mobile switching system.

2 is a time management flowchart of a system clock operating software block of an operation and maintenance interface unit.

* Explanation of symbols for main parts of the drawings

10: Mobile communication exchange (MSC exchange)

11: Operation and Maintenance Processor (OMP)

12: man machine processor (MMP)

13: High performance inter-processor communication unit (HIPCU)

20: Operation and Maintenance Interface Device (OMID)

30: Operation and Maintenance Center (OMC)

40: centralized automatic billing sensor (CSBS: Customer Service Billing System)

The present invention relates to a mobile communication switch (MSC: Mobile Services Switching Center; hereinafter referred to as a mobile communication switch), and in particular, an operation and maintenance interface unit (OMID: Operation and Maintenance Interface Device; hereinafter operation and maintenance) It is related with the function which makes the visual display of (the interface part) match.

In general, since the time information on the terminal of the operation and maintenance interface is different from the time of the exchange because there is no time information matching function between the conventional mobile communication exchange and the operation and maintenance interface unit, the time information is mutually different. There are many cases that do not coincide with each other, and when the event occurrence, load statistics, traffic statistics, etc. are printed to the printer, the actual time and the wrong time are printed. Therefore, when the problem occurs, it is difficult to identify the cause of the problem and whether it is solved. Management was difficult.

Accordingly, the present invention provides stable and consistent visual information to all the processors operating in the system in accordance with the time synchronization between the mobile communication switch and the operation and maintenance interface, and the operator for the management of holiday information to support the billing function. There is a feature that provides access to the holiday information by the on-line and holiday management function on-line.

That is, the System Clock Management Block (SCM), which is a software block inside the main processor (MP: Main Processor; hereinafter referred to as the Main Processor) of the mobile communication switch and the operation and maintenance interface unit, is referred to as a System Clock Management Block (SCM). By using the interprocessor communication (IPC: Inter-Processor Communication (hereinafter referred to as inter-processor communication)) method between the mobile communication exchange and the operation and maintenance interface unit, the time of the operation and maintenance interface unit is changed from the time of the mobile communication exchange. By synchronizing, the time display of operation and maintenance coincides with the time display output from the exchange.

Hereinafter, a configuration of an apparatus to which the present invention is applied will be described with reference to the accompanying drawings.

Operation in charge of the connection and continuous service of the mobile communication switch 10 that provides mobile cellular radiotelephone service, the mobile communication switch 10 and the regional exchange centralized operation preservation sensor 30 and the centralized automatic charging sensor 40 And a mobile communication switching system 100 comprising a maintenance interface unit 20; The operation preservation sensor 30 in charge of the operation and maintenance of each exchange, and the mobile phone system is composed of a centralized automatic charging sensor 40 which is a computerized system for customer management, customer response and billing processing, the mobile communication The exchanger 10 is an operation and maintenance processor (OPM: operation and maintenance processor (OPM) 11), which is a processor responsible for the centralized processing of the overall operation and maintenance of the system, input and output An operator matching processor (MMP: Man Machine Processor, hereinafter referred to as an operator matching processor), which is a processor that handles communication between the operator and the system or the operation center and the system, and operates inside the mobile switching center 10. And a high performance interprocessor transmission device 13 for transmitting data between the maintenance interface unit 20.

Referring to the operation of the mobile communication switch system configured as described above is as follows.

Transmission Control / Internet Protocol (TCP / IP) communication using a LAN connected between workstations with redundant operation and maintenance interfaces 20 and a high-performance interprocessor of the mobile switching center 10 Interprocessor communication using the U-link connected to the transmission device 11 monitors the state of each other and transmits each state to the other, analyzes state information received from the other, and analyzes its own operation mode and state Storing the billing information and status information of each subscriber through the operation and maintenance interface unit 20 from the mobile communication switch 10 to the operation preservation center 30 and the centralized automatic charging sensor 40, respectively. It is in charge of operation and maintenance of exchanges, customer management, customer service and billing of mobile phone systems.

In the mobile communication switch system operating as described above, a time matching method of the mobile communication switch and the operation and maintenance interface of the present invention will be described as follows.

In each of the redundant operation and maintenance interface units 20, the system clock operation software block for time management functions periodically receives reference time information from the operation and maintenance processor 11 of the mobile communication switch 10. In response, the system clock operation software block of the operation and maintenance processor 11 generates periodic reference time information at 1 minute intervals, and transmits it to the redundant operation and maintenance interface unit 20 in both directions. The system clock operating software block executed in the operation and maintenance interface unit 20 is divided into a time receiver, a time verification unit, a time comparator and a time adjustment unit to manage the time of the operation and maintenance interface unit 20. The time receiver is a clock generated by the system clock operating software block of the operation and maintenance processor. It is a processor that is always waiting to receive the data through the interprocessor communication method. It analyzes the interprocessor communication signals arriving at its own processor, and if it has the signal unique number corresponding to the time information, it calls the time management procedure for the next process. After that, it enters the standby state so that it can receive the next signal again, and the time verification unit extracts the received time information and verifies that the information is correct, and whether the year, month, day, hour, and minute information are in the correct range. Check and correct, proceed to the next step, otherwise ignore the information, the time comparison unit obtains its own time of the operation and maintenance interface unit 20, and then compares its own time and the received reference time to generate an error The next step is to determine whether or not to If it is determined that an error has occurred as a result of the time comparison, the blind spot adjusting unit sets the time of the operation and maintenance interface unit 20 as a reference time of the operation and maintenance processor, otherwise it returns to the first time receiving unit. It returns the control so that the next time information can be received.

FIG. 2 is a flowchart illustrating a time management process of the operation and maintenance interface unit 20 system clock operation software block described above.

A first step (S1) of generating reference time information of one minute period from the system clock operation software block of the operation and maintenance processor and bi-directionally transmitting it to the operation and maintenance interface unit; A second step (S2) of repeating this step if the first information is inputted to the time receiving unit and the mutual processor communication signal is analyzed to determine whether it includes the unique information information signal; A third step (S3) of transmitting the time information to the time detection unit by calling the time management procedure and entering a reception waiting state to receive a next signal when the time information includes the unique time information signal number in the second step; A fourth step (S4) of determining whether the time information is in a correct range by extracting the time information transmitted in the third step and then verifying the time information; A fifth step of repeating the steps 2, 3, and 4 after disregarding the information if the time information is not in the correct range in the fourth step; In the fourth step, when the time information is in the correct range, the time information is transmitted to the time comparison unit, and the operation and maintenance interface unit 20 compares its own time with the received reference time to determine whether an error occurs, and then uses the time adjustment unit. A sixth step (S6) of determining whether there is an error by transmitting a value; If there is an error in the sixth step, the time of the operation and maintenance interface unit 20 is set to the reference time of the operation and maintenance processor 11 and the next signal is skipped to the second step of the time receiving unit input. A seventh step S7; When there is no error in the sixth step, the control returns to the time receiver so that the time receiver receives the next time information.

As described in detail above, the present invention provides the operation and maintenance interface unit as if the main processors of the mobile communication switch 10 are synchronized with the reference time of the operation and maintenance processor 11 in the mobile communication switch system 100 ( 20) by operating and maintaining the processor and the time synchronization to ensure that the system is operated at a consistent time throughout the operation, the operation and maintenance interface unit 20 is operated on the basis of the system on the operation and maintenance interface unit 20 terminal In addition to outputting the time being displayed to the operator, the time of occurrence of the event is consistent according to the time of operation of the exchange by displaying the exchanger reference time when outputting various report forms through a printer connected to the operation and maintenance interface unit 20. Management and maintenance interface, It is advantageous in that it is possible to process the status output function of performance processors to be implemented in the future or the history management of various events that may occur in the operation and maintenance interface unit at the exchange reference time.

Claims (5)

In the mobile communication switching system, the time matching method of the mobile communication switch and the operation and maintenance interface unit generates reference time information every 1 minute periodically in the system clock operation software block of the operation and maintenance processor inside the mobile communication exchange. A first step of bidirectionally transmitting the operation and maintenance interface unit to a second operation unit; and a time receiving unit to receive the time information transmitted in the first step into a system clock operation software block of the operation and maintenance processor through a mutual processor communication method. A third step of passing through, a third step of passing through a time verifying unit verifying whether the time information received in the second step is correct, and a time of comparing the time information verified in the third step with the time of the operation and maintenance interface unit A fourth step through the comparison unit; And a step 5 of adjusting the time according to the error of the time compared in step 4 to sequentially operate the mobile communication switch and the operation and maintenance interface unit. The method of claim 1, wherein the operation of the time receiver of the second step comprises: receiving time information from the time receiver and analyzing the mutual processor communication signal, determining whether a unique time information signal number is included; Invoking a time management procedure when the step includes a time signal unique number; And then transitioning to a standby state for receiving a signal, wherein the operation is performed sequentially. The method of claim 1, wherein the operation of the time verifying unit of the third step comprises: receiving the time information received in the second step by the time detecting unit, extracting the time information, and verifying the time information to determine whether the time information is the correct range. And determining, and ignoring the information if the time information is not in the correct range, and sequentially operating the mobile communication switch and the operation and maintenance interface unit. The method of claim 1, wherein the operation of the time comparison unit of the fourth step comprises: transmitting the time information to the time comparison unit when the time information is determined to be in the correct range in the third step; Comparing the received time information with the time information of the operation and maintenance interface unit; And a step of determining whether or not an error occurs between time information compared in the step. The method of claim 1, wherein the operation of the time adjuster of the fifth step comprises: determining whether there is an error by transmitting the error occurrence determined in the fourth step to the time adjuster, and operating and maintaining when there is an error in the step. Setting the time of the maintenance interface unit as a reference time of the operation and maintenance processor; and if there is no error in contrast to the above step, returning control to the time receiving unit to receive the next signal. Visual matching method of the operation and maintenance interface unit with the mobile communication switch.