KR20040100192A - method for simulating an obstacle inspection of the mobile communication system - Google Patents

Abstract

The present invention provides a system simulation mode setting step of transmitting a simulation mode setting signal for failure verification in each simulator connected to the mobile communication system to each device of the mobile communication system and setting the failure verification simulation mode according to the mode setting signal. When the test mode is confirmed after the execution of the system simulation mode, the fault alarm information execution step of analyzing a fault / alarm history by a specific system set by a simulator, executing a related operation, and then extracting / combining the result to a simulator After the fault alarm information execution step, the system analyzes the result received from the specific mobile communication system which is currently tested, outputs a system message corresponding thereto, and generates a system alarm alarm by a graphic / audible signal. Containing It provides a proven failure simulation method of the same communication system.

The present invention as described above, by connecting the simulation equipment to the BSM before the actual installation of the mobile communication system, including the base station and applying the failure testing signal and analyzing the results to verify the failure information of the mobile communication system, the mobile communication system After the test is performed, the tester does not need to test the faults for each system through the simulation equipment, thereby significantly reducing the cost and time for fault testing.

Description

Method for simulating an obstacle inspection of the mobile communication system

The present invention relates to a method for simulating failure verification of a mobile communication system. In particular, before the actual installation of a mobile communication system including a base station, a simulation device is connected to a BSM to apply a failure testing signal and analyze the result. This paper relates to a simulation method for verifying faults in mobile communication systems.

In general, cellular phones, in particular, in the early 1980s, divided the service area into hexagonal cells of several km to several ten kilometers in diameter in North America, and then repeatedly used the same frequency channel in geographically separated cells. According to the movement, the cellular-phone, which implements the radio channel switching function between cells, has grown rapidly due to the first commercialization. In addition, such a cellular phone generally includes a plurality of mobile communication base stations for a subscriber having a terminal to smoothly communicate with other communication subscribers in a long distance using a mobile communication network. In accordance with the instructions of the control station transmits and receives the signal of the terminal amplified to a predetermined level and then connected to the desired communication network.

In other words, when the mobile communication system is roughly described, the cellular mobile communication system is largely classified into a base station (BTS), a base station controller (BSC), a base station controller (BSC), and an operation and maintenance system (BSM). STATION MANAGER). Here, the base station (hereinafter referred to as BTS) performs a call control and maintenance function for allocating a traffic channel to a call request and opens a call path, and the base station controller (hereinafter referred to as BSC) performs BTS and PSTN LE (LOCAL EXCHANGE, It performs the function of supporting setting / release of outgoing and incoming call by matching with LE), and it is the voice coding method (QUALCOMM CODE EXCITED LINEAR PREDICTION; QCELP) and the wired network voice coding method (PULSE CODE MODULATION; PCM). It performs RKSDML conversion function (TRANSCODING), echo cancellation function due to traffic propagation delay (ECHO CANCELING), and matching function with base station and PSTN LE. In addition, the operation and maintenance system (hereinafter referred to as BSM) performs initialization, downloading, status management, configuration management, failure management, performance statistics and operator registration, and subscriber authentication functions for BSCs and BTSs.

Therefore, when the mobile communication system is manufactured for the first time, various items of testing, for example, an initialization test, a call processing test, an overload test, and a failure handling test, are performed before installing the system.

Then, referring to FIG. 1 of the failure processing test function during the testing process of the conventional mobile communication system as described above, first, in the task generation step (S10), the BSC and the BTS initialize the failure-related data, and then generate a failure-related TASK. do. After the task generation step (S10), the task execution reporting step (S20) proceeds to detect the failure or alarm of the device managed by the lower processors of the BSC and BTS and reports the result to the upper processor. In addition, the failure / alarm occurrence / recovery status is reported to the BSM.

In addition, after the task execution reporting step (S20), the process proceeds to the BSM information processing step (S30) to process the information so that the BSM does not duplicate the processing by checking the failure or alarm history received from the BSC and the BTC and the previous record. Then, after the BSM information processing step (S30) proceeds to the system message output step (S40), the BSM outputs a system message through the MMI to inform the operator of the location and details of the failure or alarm occurs. In addition, after the system message output step (S40) proceeds to a specific alarm reporting step (S50), the BSM changes the corresponding information and should be notified to the operator if it should be represented by a graphical user interface (GUI) or an audible alarm alarm.

That is, when the BSM analyzes the information received from the BSC and the BTS and the GUI or the audible alarm is included in the occurrence history, the BSM changes the GUI related database and the AUDIO related database and reports them to the operator.

On the other hand, the fault handling function test performed during the operation of the mobile communication system as described above is carried out in a similar manner.

However, the failure handling test method during the testing process of the conventional mobile communication system as described above, if the failure management test, which is one of the operation and maintenance tests of the system before the system is installed and the communication service is performed, the failure details of the system are fully understood. Tests are needed to generate and recover and check system failure, alarm and recovery system messages through the BSM.In this case, the operator of the system needs to directly generate and recover hundreds of faults in various BSCs and BTSs. In case of serious waste of time and human resources, and the system verification is necessary due to mismatch of faults caused by false alarms during the operation of the system, the operator stops the operation of the system and tests the system while generating and recovering the faults of the system. Therefore, the operation reliability of the mobile communication system is also considerable. The problem of degradation has occurred.

Therefore, the present invention was invented to solve the above conventional problems, and after the mobile communication system is manufactured and tested by the simulation equipment without having to test the faults for each system, the tester accordingly for fault testing accordingly The purpose of the present invention is to provide a method for simulating failure verification of a mobile communication system, which can significantly reduce cost and time.

Another object of the present invention is to connect the simulation equipment to the mobile communication system in operation, so that the operator can perform the failure verification test without interrupting the operation of the mobile communication system, so that the efficiency of failure verification significantly improves the failure of the mobile communication system. To provide a verification simulation method.

In order to achieve the above object, the present invention transmits a simulation mode setting signal for failure verification in a simulator connected to a mobile communication system to each device of the mobile communication system, and performs a failure verification simulation mode according to the mode setting signal. After setting the system simulation mode setting step, after the system simulation mode execution step, the fault alarm test signal transmission step of transmitting a set signal specifying a specific mobile communication system to execute the fault and alarm test, and after the fault alarm test signal transmission step The test mode check step of checking whether the test mode is the first test of the current mobile communication system, and if the test mode is confirmed by the test mode check step, the specific system set by the simulator analyzes the fault / alarm history and performs the related operation. And then add the results After the fault alarm information execution step of combining / transmitting to the simulator and the fault alarm information execution step, the result received from the specific mobile communication system currently tested by the simulator is analyzed and the corresponding system message is output and the graphic / audible signal is output. The system message alarm alarm step that generates an alarm alarm to the operator and the failure simulator installed in the BSM at the end of the failure test and verification after the system message alarm alarm step and the BSM notifies the BSC and the BTS through the IPC accordingly. To provide a simulation method for verifying failure of a mobile communication system consisting of a simulation end step.

1 is a flowchart illustrating a failure verification method of a conventional mobile communication system.

2 is an explanatory diagram illustrating a simulator of a mobile communication system to which the method of the present invention is applied.

3 is a flowchart illustrating a failure verification simulation method of the present invention.

<Detailed Description of Codes>

1: BTS 2: BSC

3: bsm 4: simulator

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

The mobile communication system to which the present invention is applied includes a BTS (1A-N) for performing call control and maintenance functions for allocating a traffic channel to a call request and opening a call path, as shown in FIG. 1A-N) and PSTN LE, which supports setting / release of outgoing and incoming calls, and performs voice coding method (QCELP), voice coding method (PCM) conversion function (TRANSCODING) of wireless network, Initialization and down-setting of the BSC (2A-N) and the BSC (2A-N) and the BTS (1A-N) that perform ECHO CANCELING due to traffic propagation delay and matching function between the base station and PSTN LE. BSM (3) that performs loading, status management, configuration management, failure management, performance statistics and operator registration, subscriber authentication function, and the failure system message transmitted from the BSM (3) periodically analyzes the analysis result Generates various graphics / audible alarm alarms Simulator 4 forming the same conditions as the operation.

Next, the method applied to the apparatus of the present invention as described above will be described in detail.

As shown in FIG. 3, the present invention proceeds from the initial state S1 to the simulation determination step S2 to determine whether the simulation mode is set by the operator. At this time, if the simulation mode is not set as a result of the determination in the simulation determination step (S2), the process proceeds to the end step. However, when the simulation mode is set as the result of the determination in the simulation determination step (S2), the system simulation mode execution step (S3) proceeds to transmit the simulation mode setting signal for failure verification in the simulator to each device of the mobile communication system, and Set the equipment to simulation mode according to this mode setting signal.

On the other hand, after the system simulation mode execution step (S3) proceeds to the failure alarm test signal transmission step (S4) to transmit a set signal specifying a specific mobile communication system to execute the failure and alarm test. Then, after the fault alarm test signal transmission step (S4) to proceed to the test mode determination step (S5) to determine whether the test mode or the test mode during the initial test of the current mobile communication system. Here, when the test mode is determined during the test mode determination step (S5), and the test mode for the first test of the current mobile communication system proceeds to the step of executing the error alarm information (S6), the specific system set by the simulator analyzes the failure / alarm history. After executing the relevant operation, extract / combine the result and send it to the simulator. After the fault alarm information execution step (S6), the system message alarm alarm step (S7) proceeds to analyze the result received from the specific mobile communication system that the simulator currently tests, and outputs the corresponding system message and the graphic / audible signal. This generates an alarm alert to the operator. Then, after the system message alarm alarm step (S7) proceeds to the simulation end step (S10) to release the operation of the failure simulator installed in the BSM at the end of the failure test and verification and accordingly the BSM notifies the BSC and BTS through the IPC do.

That is, in the test mode in which the mobile communication system is first manufactured and tested, the operator designates a specific mobile communication device in the simulator 4 and selects the occurrence and recovery of the corresponding item to the BSM 3. Then, the BSM 3 transmits the signal received from the simulator 4 to the designated specific mobile communication BSC 2A-N or BTS 1A-N through IPC (Inter Processor Communication). At this time, the designated specific BSC 2A-N or BTS 1A-N sets the simulation mode to ON according to the signal received from the simulator 4 and confirms the test operation mode. In addition, the designated specific BSC 2A-N or BTS 1A-N analyzes the requested fault and alarm history, and extracts and combines the related actions so that the requested fault and alarm history can actually occur. In addition, the designated specific BSC (2A-N) or BTS (1A-N) is the BSM (3) if the requested failure and alarm history is generated and recovered in the corresponding BSC (2A-N) and BTS (1A-N) Transfer to the simulator (4) through. Then, the simulator 4 outputs a system message and allows the operator to check the fault and alarm details through graphics and an audible alarm.

Here, in the test mode as described above, it is possible to select a plurality of faults and alarms through the simulator 4 and to request and process them in a batch.

On the other hand, if the test mode determination step (S5) is determined as a result of the operation mode in the test mode for the failure alarm test in operation instead of the test mode for the first test of the current mobile communication system proceeds to the virtual testing execution step (S8) The specific mobile communication equipment designated by the DSM virtually generates and recovers the requested faults and alarms and transmits the corresponding information to the simulator. In addition, after the virtual testing execution step (S8), the operation proceeds to the failure verification step (S9) to analyze the results received from the specific mobile communication system currently tested by the simulator and output the corresponding system message and the graphic / audible signal. This generates an alarm alert to the operator.

In other words, when the mobile communication system is actually installed and performs a failure test during operation, when the operator selects verification of the corresponding item through the simulator 4, the simulator 4 sets a specific mobile communication device designated by the operator. Select the failure and recovery for the item and send it to the BSM (3). Then, the BSM 3 transmits the signal received from the simulator 4 to the designated specific mobile communication BSC (2A-N) or BTS (1A-N) through IPC (Inter Processor Communication). At this time, the specified specific BSC 2A-N or BTS 1A-N sets the simulation mode to ON according to the signal received from the simulator 4 and confirms the operation operation mode. In addition, the specified specific BSC (2A-N) or BTS (1A-N) is a task for verifying a false alarm due to an exception occurring during operation, since the system is installed and in operation, failure and alarm on the actual system. It is not possible to use methods that cause related operations to cause problems for the serviced system.

Therefore, the designated specific BSC 2A-N or BTS 1A-N virtually generates and recovers the fault and alarm details requested from the simulator and transmits the corresponding information to the simulator. Then, the simulator 4 outputs a system message and allows the operator to check the fault and alarm details through graphics and an audible alarm. On the other hand, when the failure test and verification is completed, the operator releases the operation of the failure simulator installed in the BSM (3) and accordingly the BSM (3) BSC (2A-N) and BTS (1A-N) through the IPC Notify Then, the BSCs 2A-N and BTSs 1A-N turn off the simulation mode according to the signal of the BSM 3.

In this case, in the operation mode, a false alarm that is inconsistently managed as occurring in the BSM 3 due to an unexpected exception occurring during system operation even though the failure or alarm does not occur in the actual BSC or BTS is performed. This can be usefully validated by the method.

As described in the above description, the present invention connects a simulation device to a BSM before actually installing a mobile communication system including a base station, applies a failure testing signal, and analyzes the result to verify the failure information of the mobile communication system. After constructing the communication system, the tester does not need to test the faults for each system through the simulation equipment, which has the advantage of significantly reducing the cost and time for fault testing.

In addition, according to the present invention, by connecting the simulation equipment to the mobile communication system in operation, the operator can perform the failure verification test without interrupting the operation of the mobile communication system, so there is an effect that the efficiency of failure verification is also significantly improved.

Claims (2)

A system simulation mode setting step of transmitting a simulation mode setting signal for failure verification in each simulator connected to the mobile communication system to each device of the mobile communication system and setting the failure verification simulation mode according to the mode setting signal; After the simulation mode execution step, a failure alarm test signal transmission step of transmitting a set signal designating a specific mobile communication system to execute a failure and alarm test, and a test mode for initial testing of the current mobile communication system after the failure alarm test signal transmission step. When the test mode is confirmed by the test mode check step and the test mode check step to confirm the recognition, the specific system set by the simulator analyzes the fault / alarm history, executes the relevant operation, and then extracts / combines the result. Fault alarm sent to the simulator System message that analyzes the result received from the specific mobile communication system currently tested by the simulator after the alarm execution step and the error alarm information execution step, and outputs the corresponding system message and generates the alarm alarm to the operator by graphic / audible signal. After the alarm alarm step and the end of the failure test and verification after the system message alarm alarm step, the operation of the failure simulator installed in the BSM is released and accordingly, the BSM consists of a simulation end step of notifying the BSC and the BTS through the IPC. Simulation method of failure verification of mobile communication system. According to claim 1, If the test mode is confirmed in the operation test mode for performing a failure alarm test during the operation of the mobile communication system by the step of the specific mobile communication device specified from the simulator virtually for the requested failure and alarm history The virtual testing execution step of generating the occurrence and recovery situation and transmitting the corresponding information to the simulator, and after analyzing the result received from the specific mobile communication system tested by the simulator after the virtual testing execution step, and outputs the corresponding system message The failure verification simulation method of the mobile communication system, characterized in that it further comprises a failure verification step of operation to generate an alarm alarm to the operator with a graphic / audible signal.