KR20030057637A - method for remotely testing a GPS base station - Google Patents

Abstract

PURPOSE: A remote test method of a GPS base station is provided to transmit a testing control signal for testing a failure to the GPS base station from a base station controller located at a remote site and test the failure of the GPS base station, thereby increasing the convenience in the failure test of the GPS base station. CONSTITUTION: An initial state(S1) is progressed to a remote testing signal input discrimination process(S2), so that it is discriminated whether a remote control signal for requesting testing of current GPSM(GPS Receive and OSC module) board is inputted. If not, the remote testing signal input discrimination process is progressed to a general signal processing process(S3), so that position coordinate information is received from a GPS(Global Positioning System) and then the received information is transmitted to a base station controller. When a remote control signal for requesting testing of current GPSM board is inputted, the remote testing signal input discrimination process is progressed to a remote TOD transmission process(S4), so that a remote control signal loaded test failure information is transmitted the GPSM board. Thereafter, the remote TOD transmission process is progressed to a GPSM reset process(S5), so that the GPSM board is restarted according to the received remote TOD signal. Thereafter, the GPSM reset process(S5) is progressed to a GPSM state information transmission process(S6), so that the GPSM board loads and transmits the state information of the GPSM board to the testing data. Thereafter, a GPSM state information transmission process(S6) is progressed to a GPSM test result transmission process(S7), so that a specific signal notifying a fault test adds to the test information of the GPSM board and then transmits the signal to the base station controller.

Description

Method for remotely testing a GPS base station

The present invention relates to a remote test method of a GPS base station, and more particularly to a remote test method of a GPS base station for testing the failure of the GPS base station by transmitting a test test signal for the failure test from the remote base station controller to the GPS base station.

In general, a mobile communication system includes a base station so that a subscriber having a mobile phone can communicate with other communication subscribers using a mobile communication network. In this case, the base station transmits and receives a signal of the mobile phone according to the instructions of the base station controller. After amplification to a certain level, it is connected to the desired communication network. However, such a base station generally receives a position coordinate information signal from a global position system (GPS) floating in the earth and uses this information for mobile phone position or other operations. Here, the base station can receive the position coordinate information of the GPS from three or more satellites to measure the exact time and distance, and then calculate the current position by triangulation of three different distances.

Then, referring to the conventional GPS base station system as described above with reference to FIG. 1, a plurality of GPSM boards (70A-B: GPS Receive & OSC module) for receiving and processing a position coordinate signal from a GPS (not shown) located above the station. And a remote control unit (RCU) 72 which collects position coordinate signals and fault information output from the GPMS boards 70A-B and transmits them to the base station controller 71, and the RCU 72 and the base station controller 71. It includes an interface unit 73 for interfacing a signal transmitted and received between the).

Here, the internal modules 70A-B of the GPS base station 74 are configured in redundancy.

Meanwhile, referring to the operation of the conventional GPS base station as described above, first, the GPSM boards 70A-B of the base station 74 receive the position coordinate information from the GPS, process a predetermined signal, and output the same to the RCU 72. Then, the RCU 72 transmits the input position coordinate information to the base station controller 71 through the interface unit 73. At this time, the RCU 72 collects the faults of the constituent modules in the base station 74, and if there is a faulted module, transmits it to the base station controller 71 as a fault alarm signal.

Here, when performing a failure test of the GPS base station 74 during the above process, it is necessary to artificially cause a failure. In this case, some testers are located in the base station controller 71 and the rest of the testers are located at the remote base station 74. A visit is performed directly, and the internal module 70A-B of the base station 74 is detached and a failure test of the base station 74 is performed. For example, when the tester attaches or detaches the GPSM board 70A-B of the base station 74, the RCU 72 detects the test signal and the test signal TOD and the fault alarm signal to the base station controller 71 through the interface unit 73. Send it. Then, the base station controller 71 detects the fault alarm signal currently transmitted to the base station 74 and determines whether the internal modules of the base station 74 have a failure and processes it.

However, the fault test method of the conventional GPS base station as described above requires a failure test to be performed when the internal modules of the base station are detached from the base station by visiting the base station in order to perform the failure test of the internal modules of the base station. The continuity of is considerably limited, and also, there is a problem that it is difficult to repeatedly reproduce the failure test of the base station because there is no function to reset the function of the base station during the failure test of the base station.

Accordingly, the present invention has been invented to solve the conventional problems as described above, by testing the failure of the GPS base station by sending a test control signal for the failure test from the base station controller located at a remote location to the GPS base station, the tester tests the GPS base station The purpose is to provide a remote test method of the GPS base station that maximizes the convenience of the failure test of the GPS base station by automatically processing the remote without having to visit the GPS base station directly.

Another object of the present invention is to provide a remote test method of a GPS base station to improve the failure management characteristics of the GPS base station according to the tester can perform a failure test and management of the GPS base station at the same time to quickly handle the failure state of the GPS base station. It is.

In order to achieve the above object, the present invention provides a remote TOD transmission step of transmitting a remote control signal containing testing failure information to a GPSM board when a remote control signal for requesting testing of a current GPSM board is input from a GPS base station; GPSM reset step for restarting the GPSM board according to the remote TOD signal received after the remote TOD transmission step, and GPSM board carrying the GPSM board status information to the test data from the GPSM board at a predetermined time set after the GPSM reset step. Provides a remote test method of the GPS base station consisting of a status information transmission step and a GPSM test result transmission step of adding a specific signal informing the failure test to the test information of the GPSM board after the GPSM status information transmission step to transmit to the base station controller. .

1 is an explanatory diagram illustrating a failure test method of a conventional GPS base station.

2 is an explanatory diagram illustrating a GPS base station of the present invention.

3 is a flowchart of the present invention.

<Detailed Description of Codes>

1A-B: GPSM Board 2: Base Station Controller

3: RCU 4: BAMA Module

5: BTMA-C module 6: base station

7: ECPA board

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

The GPS base station to which the present invention is applied includes a plurality of GPSM boards 1A-B for receiving and processing a position coordinate signal from a GPS (not shown) located over an office as shown in FIG. 2, and the GPSM boards 1A-. Detects and outputs the fault alarm of the RCU 3 which collects the position coordinate signal and the fault information outputted from B) and transmits the fault information to the base station controller 2 and the GPSM board 1A-B output from the RCU 3. BAMA module (4: BTS alarm management board assembly module), and BTMA-C module (5: BTS timing management board assembly module) for detecting and outputting the GPS reception state information and the TOD signal output from the RCU (3). And collect the fault alarm signal and the reception status signal (CTL) detected from the BAMA module 4 and the BTMA-C module 5 and transmit them to the base station controller (hereinafter referred to as BSM) and transmit the BSM (2). ECPA board 7 for resetting the modules of the base station 6 in accordance with the testing control signal transmitted from the rocess board assembly).

Next, a control method applied to the present invention system as described above will be described.

The method of the present invention proceeds to the remote testing signal input determination step S2 in the initial state S1 as shown in FIG. 3 to determine whether a remote control signal for requesting testing of the current GPSM board is input. At this time, when the remote control signal input determination step (S2) is determined as a result of the remote control signal for requesting the current GPSM board is not input, proceed to the general signal processing step (S3) to receive the position coordinate information from the GPS Transmit to base station controller.

That is, the ECPA board 7 of the GPS base station 6 executes a general position coordinate information receiving function when a remote control signal for requesting testing of the GPSM board is not input from the base station controller 2. The GPSM boards 1A-B of the GPS base station 6 receive the position coordinate information from the GPS, process a predetermined signal, and output it to the RCU 3. Then, the RCU 3 outputs the input position coordinate information and the reception state signal to the BTMA-C module 5 on the received CTL signal. The BTMA-C module 5 processes the received received CTL signal by a predetermined signal and outputs the same to the ECPA board 7. In addition, the ECPA board 7 transmits the received received CTL signal as the CTL (HDLC) to the base station controller 2. Then, the base station controller 2 analyzes the information input from the GPS base station 6 and utilizes it as normal mobile phone (not shown) information.

On the other hand, if the remote control signal for the current testing of the GPSM board is input as a result of the determination during the remote testing signal input determination step (S2) proceeds to the remote TOD transmission step (S4) to send a remote control signal containing the testing failure information Send to GPSM board. After the remote TOD transmission step S4, the GPSM board is restarted according to the received remote TOD signal in the GPSM reset step S5. After the GPSM reset step (S5), the process proceeds to the GPSM status information transmission step (S6) and transmits the GPSM board status information to the testing data from the GPSM board at predetermined time intervals. In addition, after the GPSM status information transmitting step (S6), the process proceeds to the GPSM test result transmitting step (S7) and adds a specific signal indicating a failure test to the test information of the GPSM board and transmits it to the base station controller.

In other words, when the BSM 2 tests the failure state of the GPSM boards 1A-B of the base station 6, the SD (Signal ID) indicating the type of failure to the ECPA board 7 of the GPS base station 6 is indicated. It is transmitted on a CTL (HDLC) signal. Then, the ECPA board 7 outputs this input SD signal to the BTMA-C module 4. In addition, the BTMA-C module 4 loads the disturbance contents to be tested in the CTL signal according to the input SD signal to the RCU 3. In addition, the RCU 3 sets a predetermined value to an artificial fault start bit of an internal FPGA (not shown), and then outputs a remote TOD signal (toggle signal: low active of 100 ms or more) to the GPSM board 1A-B. . Then, the GPSM boards 1A-B reset, ie, restart the GPSM boards 1A-B according to the remote TOD signal of the RCU 3, and then TOD (TEST OF DATA) every 10ms. The restarted GPSM boards 1A-B, for example, carry state information of the current GPSM boards 1A-B on the TOD transmitted once every 10 ms and output them to the RCU 3. Then, the RCU 3 sets the status bit of the TOD received from the restarted GPSM boards 1A-B to indicate that it is currently in the remote control test, and then displays the BTMA-C module. Output to ECPA board 7 via (4). At this time, the RCU (3) outputs to the ECPA board (7) via the BAMA module (4) when a failure alarm occurs from the GPSM board (1A-B). The ECPA board 7 collects signals inputted from the BTMA-C module 4 and the BAMA module 4, and sets "1" to the status bit of the TOD of the BTMA-C module 4. If it is confirmed that the base station controller 2 transmits it. Then, the base station controller 2 analyzes the status information of the GPSM boards 1A-B in the TOD information transmitted from the ECPA board 7 of the GPS base station 6 for a predetermined time, for example, every 10 ms. Run

Therefore, by using the method of the present invention as described above, it is possible to perform a failure test of the GPS base station 6 without the tester visiting the base station directly.

As described above, the present invention transmits a failure test testing control signal from a remote base station controller to a GPS base station to test whether there is a failure of the GPS base station, so that the tester does not have to visit the GPS base station directly to test the GPS base station. As it is automatically processed remotely, it has the advantage of maximizing the convenience of disability testing of GPS base station.

In addition, according to the present invention, since the tester can perform a failure test and management of the GPS base station at the same time to quickly handle the failure state of the GPS base station, there is also an effect that significantly improves the failure management characteristics of the GPS base station.

Claims (1)

When the remote control signal is inputted by the GPS base station to request testing of the current GPSM board, a remote TOD transmission step of transmitting a remote control signal including testing failure information to the GPSM board, and a remote TOD signal received after the remote TOD transmission step. A GPSM reset step of restarting the GPSM board according to the present invention; a GPSM status information transmission step of transmitting GPSM board status information to the testing data from the GPSM board at a predetermined time set after the GPSM reset step; and transmitting the GPSM status information. And a GPSM test result transmission step of transmitting a GPSM test result to the base station controller by adding a specific signal indicating a failure test to the test information of the GPSM board after the step.