KR20100063473A - System and method for monitoring optic repeater - Google Patents

Abstract

PURPOSE: A system and a method for monitoring optic repeater are provided to use pilot repeater which monitor terminal is mounted, thereby checking optical repeater which failure is generated, even in case of a plurality of optical repeaters is connected in service type. CONSTITUTION: A wireless repeater(300) is connected to an optical repeater(200) by wireless. The wireless repeater relays a wireless communication signal between a mobile terminal(400) and optical repeater. The wireless repeater comprises a monitoring terminal. The monitoring terminal measures wireless quality with operation state of a wireless repeater. A monitoring terminal provides state information and quality information corresponding to measured information. A monitoring server(500) performs monitoring of the optical repeater.

Description

Optical repeater monitoring system and method thereof {SYSTEM AND METHOD FOR MONITORING OPTIC REPEATER}

The present invention relates to a repeater monitoring system, and more particularly to a system and method for monitoring an optical repeater difficult to monitor the RF stage.

In general, a repeater is used to improve the communication quality and coverage of the base station, which is difficult to reach, or the radio wave blocking area due to the feature.

Of these repeaters, the optical repeater is a repeater of a method of converting the RF signal of the base station into an optical signal, then transmitted to the desired remote area along the optical path, and then converted to an RF signal and transmitted to the mobile terminal of the subscriber through the antenna again.

In general, a repeater generates a failure during operation, and it is necessary to periodically detect the operation state of the repeater to determine whether the failure occurs and its cause.

In the case of the optical repeater used in the WCDMA (Wideband Code Division Multiple Access), which is the 3rd generation wireless communication system, TCP / IP communication can be performed with the base station where the hub is installed through the LAN port of the optical repeater. Since the base station performs the TCP / IP communication with the optical repeater, the base station can receive the status value of the optical repeater and monitor and manage the optical repeater.

As described above, since the conventional optical repeater transmits only its own state information, especially the state information related to the forward direction, to the base station, the quality deterioration due to the antenna direction change, the feeder defect, the distributor failure, the router failure, etc. Since the base station can not confirm the degradation, such as, there is a problem that a separate manpower is dispatched to the site where the optical repeater is installed to monitor the optical repeater by checking the quality using the monitoring terminal.

It is an object of the present invention to provide an optical repeater monitoring system and method for monitoring an optical repeater without going directly to the site where the optical repeater is located.

Surveillance system according to one feature of the present invention for achieving the technical problem,

A system for monitoring an optical repeater connected to a base station via a light path, the system comprising: a wireless repeater wirelessly connected to the optical repeater to relay a wireless communication signal between a mobile terminal and the optical repeater, wherein the wireless repeater includes a monitoring terminal, The monitoring terminal measures a state of operation and radio quality of the radio repeater and provides corresponding state information and quality information; And a monitoring server connected to the base station and monitoring the optical repeater based on the state information and the quality information provided by the monitoring terminal and the control of the output change of the optical repeater.

Here, the monitoring server, the quality evaluation unit for determining whether or not the radio repeater by evaluating the state information and quality information provided from the monitoring terminal; A repeater controller for changing an output of the optical repeater; And a monitoring controller configured to change the output of the optical repeater by controlling the repeater controller when it is determined that the wireless repeater is abnormal by the quality evaluator.

Monitoring method according to another aspect of the present invention,

A method for monitoring an optical repeater in which a monitoring server is connected to a base station via a light path, the method comprising: a) from a monitoring terminal mounted to a wireless repeater wirelessly connected to the optical repeater to relay a wireless communication signal between a mobile terminal and the optical repeater Receiving state information and quality information of the wireless repeater; And b) monitoring the optical repeater based on the state information and the quality information and the control of the output change of the optical repeater.

Surveillance system according to another aspect of the present invention,

A system for monitoring a plurality of optical repeaters connected in series via an optical path to a base station, wherein the mobile terminal and the final stage are wirelessly connected to an optical repeater of a last stage connected last from the base station among the plurality of optical repeaters. A wireless repeater for relaying a wireless communication signal between optical repeaters of the wireless repeater, wherein the wireless repeater includes a monitoring terminal, and the monitoring terminal measures state of operation and wireless quality of the wireless repeater and provides corresponding state information and quality information. -; And a monitoring server connected to the base station and monitoring each of the plurality of optical repeaters based on the state information and the quality information provided by the monitoring terminal and the control of the output change of each of the plurality of optical repeaters.

According to the present invention, it becomes possible to remotely monitor an optical repeater that is impossible to measure quality.

In addition, even when a plurality of optical repeaters are connected in series, it is possible to identify an optical repeater having a failure.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise. In addition, the terms “… unit”, “… unit”, “module”, etc. described in the specification mean a unit for processing at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software. .

In this specification, a mobile terminal (MT) is a mobile station (MS), a subscriber station (Subscriber Station (SS)), a mobile subscriber station (Portable Subscriber Station (PSS), a user equipment (UE), user access, etc. It may also refer to an access terminal (AT) and the like, and may include all or some functions of a mobile station, a subscriber station, a portable subscriber station, a user device, and the like.

In the present specification, a base station (BS) is an access point (AP), a radio access station (Radio Access Station, RAS), a Node B (Node B), a base transceiver station (Base Transceiver Station, BTS), MMR ( Mobile Multihop Relay) -BS and the like, and may include all or part of functions such as an access point, a radio access station, a Node B, a base transceiver station, and an MMR-BS.

Now, an optical repeater monitoring system according to an embodiment of the present invention will be described in detail.

1 is a view showing an example applied to the optical repeater monitoring system according to an embodiment of the present invention.

As shown in FIG. 1, an optical repeater monitoring system according to an embodiment of the present invention includes a pilot repeater 300 and a monitoring server 500.

The pilot repeater 300 is wirelessly connected to the optical repeater 200 which is a repeater to be monitored to provide a mobile communication service for the mobile terminal 400, and the pilot repeater 300 through the monitoring terminal 320 mounted therein. Measure the status and quality of the corresponding state information and provide quality information.

The monitoring server 500 determines whether there is a failure from the state information and the quality information provided by the pilot repeater 300, and outputs the optical relay 200 connected to the base station 100 through the optical path 110 when a failure occurs. After the control is performed, a monitoring operation for the optical repeater 200 is performed by determining whether the optical repeater 200 is abnormal based on the state information and the quality information provided from the pilot repeater 300. Here, since the monitoring server 500 is already well known for the contents of the output control for the optical repeater 200 through the base station 100, anyone skilled in the art will know, so the detailed description thereof will be omitted. do.

2 is a detailed block diagram of the pilot repeater 300 shown in FIG. 1.

As shown in FIG. 2, the pilot repeater 300 according to the exemplary embodiment of the present invention is a repeater in which the monitoring terminal 320 is connected to the repeater 310 which serves the same role as the existing RF repeater.

Accordingly, the relay unit 310 performs wireless communication with the optical repeater 200 which is the monitoring target in the embodiment of the present invention through the antenna 311, and performs wireless communication with the mobile terminal 400 through the antenna 312. By performing the communication signal relay between the optical repeater 200 and the mobile terminal 400. Since a forward structure or a reverse structure for relaying the communication signal of the relay unit 310 is well known, a detailed description thereof will be omitted herein.

The monitoring terminal 320 periodically or in response to a request of the monitoring server 500, status information indicating an operating state of the relay 310 from the relay 310, and quality information indicating radio quality of the relay 310. The measurement is provided to the monitoring server 500. In this case, the monitoring terminal 320 may provide status information and quality information to the monitoring server 500 through wireless communication via the optical repeater 200 and the base station 100.

Status information provided by the monitoring terminal 320 to the monitoring server 500 includes a repeater gain, an output, attenuation value, various alarm information, and the like, and the quality information includes a received signal strength indication (RSSI) and a signal table. Chip Energy / Others Interference (Ec / Io), Tx-Adjust, and Tx-Power. Since the above state information and quality information are already well known, a detailed description thereof will be omitted.

3 is a detailed block diagram of the monitoring server 500 illustrated in FIG. 1.

As shown in FIG. 3, the monitoring server 500 includes a receiving unit 510, a quality evaluating unit 520, a repeater control unit 530, an output unit 540, a monitoring control unit 550, and a display unit 560. do.

The receiver 510 receives the state information and the quality information of the pilot repeater 300 provided from the monitoring terminal 320 of the pilot repeater 300 through the base station 100.

The quality evaluator 520 evaluates the state information and the quality information received by the receiver 510 to determine whether the pilot repeater 300 is abnormal. For example, the quality evaluator 520 compares the output of the pilot repeater 300 with the reference output, received signal code power (RSCP) calculated based on RSSI and Ec / Io, magnitude of Ec / Io, and Tx. It is determined whether the pilot repeater 300 is abnormal based on the Adjust value.

The repeater controller 530 generates a control command for controlling the forward output or the reverse output of the optical repeater 200 to be monitored.

The output unit 540 transmits a control command generated by the repeater controller 530 to the optical repeater 200 through the base station 100.

The monitoring controller 550 generates a control command for changing the output of the optical repeater 200 by controlling the repeater controller 530 when it is determined that the quality of the pilot repeater 300 is abnormal in the quality evaluator 520. The generated control command is controlled to be transmitted to the optical repeater 200 through the output unit 540, the quality provided from the monitoring terminal 320 of the pilot repeater 300 after the control command is transmitted to the optical repeater 200 The abnormality of the optical repeater 200 is determined based on the information and the state information. Here, the monitoring control unit 550 is different from the state information and quality information expected in the pilot repeater 300 and the state information and quality information measured and provided in the actual monitoring terminal 320 according to the output change of the optical repeater 200. In this case, it is determined that the optical repeater 200 is abnormal.

In addition, the monitoring control unit 550 may request the measurement of the state and quality of the pilot repeater 300 to the monitoring terminal 320 of the pilot repeater 300 through the output unit 540.

The display unit 560 displays to the user information on the supervisory control operation performed by the supervisory control unit 550 and a result of the abnormality determination of the pilot repeater 300 and the optical repeater 200. In addition, the display unit 560 is a text message, such as a base station 100, an exchanger (not shown), other servers, etc., where a variety of information including information on the monitoring control operation of the monitoring control unit 550 is set in advance. Or the like.

Hereinafter, an optical repeater monitoring method according to an exemplary embodiment of the present invention will be described with reference to FIG. 4.

First, the optical repeater 200 relays a wireless communication signal between the base station 100 and the pilot repeater 300 connected through the optical path 110, and the pilot repeater 300 performs the optical repeater 200. The monitoring operation for the optical repeater 200 according to the embodiment of the present invention is performed in a state in which relaying of a wireless communication signal is performed between the base station 100 and the mobile terminal 400 through S100.

The pilot repeater 300 measures its own status and wireless quality and provides corresponding status information and quality information to the monitoring server 500 (S110 and S120).

More specifically, the monitoring terminal 320 mounted on the pilot repeater 300 periodically or at the request of the monitoring server 500 measures the state and quality of the repeater 310 of the pilot repeater 300. In operation S110, state information and quality information corresponding to the measured state and quality are transmitted to the monitoring server 500 (S120).

Next, the monitoring server 500 evaluates the status information and the quality information provided by the pilot repeater 300 (S130) to determine whether the pilot repeater 300 is abnormal (S140), and if the pilot repeater 300 is abnormal If it is determined that there is, the control command for controlling the output of the optical repeater 200 is transmitted to the optical repeater 200 (S150).

In more detail, when the receiving unit 510 of the monitoring server 500 receives the state information and the quality information provided from the monitoring terminal 320 of the pilot repeater 300, the quality evaluating unit 520 receives the receiving unit ( The status information and the quality information received from the 510 are evaluated to determine whether the pilot repeater 300 is abnormal (S130 and S140). If the result evaluated by the quality evaluator 520 is determined to be the abnormality of the pilot repeater 300, the monitoring controller 550 controls the repeater controller 530 to change the output of the optical repeater 200. After generating the command is transmitted to the optical repeater 200 through the output unit 540 (S150).

Thereafter, the pilot repeater 300 measures its own state and quality again (S160), and transmits corresponding state information and quality information to the monitoring server 500 (S170).

Therefore, the monitoring server 500 receives and evaluates the status information and the quality information of the pilot repeater 300 measured after the output of the optical repeater 200 is changed (S180), and then changes the output of the optical repeater 200. If it is different from the expected state information and quality information, it is determined that the optical repeater 200 is abnormal (S190, S200).

However, if the status information and the quality information evaluated by the monitoring server 500 are the same as the status information and the quality information expected due to the output change of the optical repeater 200, it is not an error of the optical repeater 200 but the pilot repeater 300 itself. It is determined that the abnormality (S210).

As described above, the monitoring server 500 uses the pilot repeater 300 equipped with the monitoring terminal 320 to reduce the quality caused by antenna direction change, feed line failure, distributor failure, router failure, and the like, and in particular, the reverse quality. The remote control may monitor whether or not the optical repeater 200 does not provide information that can determine information about the error.

Meanwhile, as shown in FIG. 5, the optical repeaters 201, 202, and 203 are often configured in a cascade with respect to the base station 100. That is, in the state where the first optical repeater 201 is connected to the base station 100 through the optical path 111, the second optical repeater 202 is connected to the first optical repeater 201 with the optical path 112. The third optical repeater 203 is connected to the second optical repeater 201 through the optical path 113, and the first optical repeater 201 and the second optical repeater 202 are connected to each other. And the third optical repeater 203 each provide a mobile communication service for the mobile terminal within its coverage.

Even in this case, as illustrated in FIG. 5, the third optical repeater 203 located at the end of the optical repeaters 201, 202, and 203 configured in series with respect to the base station 100 is illustrated in FIGS. When the pilot repeater 300 as described in FIG. 4 is wirelessly connected and the monitoring server 500 is connected to the base station 100, the monitoring server 500 uses the pilot repeater 300 to provide optical repeaters 201 and 202. , 203) each can be monitored. That is, the monitoring server 500 evaluates the status information and the quality information provided through the pilot repeater 300, and when there is an error, the pilot repeater measured while changing the outputs of the optical repeaters 201, 202, and 203, respectively. The status information and the quality information of the 300 may be evaluated to determine whether the optical repeaters 201, 202, and 203 are abnormal. At this time, the monitoring server 500 changes the outputs from the third optical repeater 203 to the second optical repeater 202 and the first optical repeater 201 while changing the output of each optical repeater 201, 202, and 203. It is preferable to determine whether or not).

In the above description, only the monitoring server 500 monitors the optical repeater 200 by using the pilot repeater 300, but the technical scope of the present invention is not limited thereto, and the repeater is connected to the base station 100. Even if the type is different or the connection type of the repeater is different, the same can be applied.

For example, as shown in FIG. 6, a form of providing a mobile communication service for the mobile terminal 400-1 by directly connecting the pilot relay 300-1 to the base station 100 wirelessly (1-1). 1), a form (1-2) of providing a mobile communication service for the mobile terminal 400-2 by wirelessly connecting the pilot repeater 300-2 to the RF repeater 600 wirelessly connected to the base station 100, The optical repeater 200 and the optical repeater 700 are connected to the base station 100 through the optical paths 110 and 120 in series, and the pilot repeater 300-3 is wirelessly connected to the last optical repeater 700. In the case where the content described above with reference to FIGS. 1 to 5 is applied to a form (1-3) for providing a mobile communication service to the mobile terminal 400-3, the monitoring server 500 may use a pilot repeater ( Base station 100 or repeater 200, 600, 700 located in a higher station of pilot repeaters 300-1, 300-2, 300-3 using 300-1, 300-2, 300-3) ) Can be monitored.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

1 is a view showing an example applied to the optical repeater monitoring system according to an embodiment of the present invention.

FIG. 2 is a detailed block diagram of the pilot repeater shown in FIG. 1.

3 is a detailed block diagram of the monitoring server shown in FIG.

4 is a flowchart of an optical repeater monitoring method according to an embodiment of the present invention.

5 is a view showing another example in which the optical repeater monitoring system according to an embodiment of the present invention is applied.

6 is a diagram illustrating an example in which an optical repeater monitoring system according to an exemplary embodiment of the present invention is applied to another type of repeater and another type of repeater connection.

Claims (16)

A system for monitoring an optical repeater coupled to a base station via a light path, A wireless repeater wirelessly connected to the optical repeater and relaying a wireless communication signal between the mobile terminal and the optical repeater, wherein the wireless repeater includes a monitoring terminal, wherein the monitoring terminal measures an operational state and a radio quality of the wireless repeater Providing corresponding status information and quality information; And A monitoring server connected to the base station and performing monitoring of the optical repeater based on state information and quality information provided by the monitoring terminal and control of an output change of the optical repeater Surveillance system comprising a. The method of claim 1, The monitoring server, A quality evaluator for evaluating whether the wireless repeater is abnormal by evaluating state information and quality information provided from the monitoring terminal; A repeater controller for changing an output of the optical repeater; And A monitoring control unit for changing the output of the optical repeater by controlling the repeater control unit when it is determined that there is an abnormality in the wireless repeater by the quality evaluation unit; Surveillance system consisting of. The method of claim 2, The monitoring server, A receiving unit which receives the state information and quality information from the monitoring terminal and transmits the state information and quality information to the quality evaluation unit; An output unit which receives a control command generated to change the output of the optical repeater from the repeater control unit and transmits the control command to the optical repeater through the base station; And A display unit controlled by the monitoring control unit to display monitoring operation information of the optical repeater and information on whether the wireless repeater and the optical repeater are abnormal; Surveillance system further comprising. The method of claim 2, And the monitoring controller determines whether the optical repeater is abnormal based on state information and quality information provided from the monitoring terminal after the output change of the optical repeater. The method of claim 4, wherein The monitoring controller determines that there is an abnormality in the optical repeater when the status information and quality information of the wireless repeater expected by the output change of the optical repeater and the status information and quality information provided by the monitoring terminal are different. Surveillance system characterized. 6. The method according to any one of claims 1 to 5, And said status information is at least one of repeater gain, output, attenuation value, and alarm information. 6. The method according to any one of claims 1 to 5, The quality information may include at least one of a received signal strength indication (RSSI), a chip energy / others interference (Ec / Io), a transmission adjustment value (Tx-Adjust), and a transmission output (TX-Power). Surveillance system, characterized in that. A method for monitoring an optical repeater in which a monitoring server is connected to a base station via a light path, a) receiving state information and quality information of the wireless repeater from a monitoring terminal mounted on a wireless repeater wirelessly connected to the optical repeater and relaying a wireless communication signal between the mobile terminal and the optical repeater; And b) monitoring the optical repeater based on the state information and the quality information and the control of the output change of the optical repeater Surveillance method comprising a. The method of claim 8, Step b), i) evaluating the status information and quality information; ii) determining whether the wireless repeater is abnormal according to a result of the evaluation; And iii) if it is determined that there is an abnormality in the wireless repeater, determining whether the optical repeater is abnormal while changing the output of the optical repeater. Surveillance method comprising a. 10. The method of claim 9, Step iii), iii-1) varying the output of the optical repeater via the base station; iii-2) receiving status information and quality information from the monitoring terminal; And iii-3) determining whether the optical repeater is abnormal based on the state information and quality information provided in step iii-2). Surveillance method comprising a. The method of claim 10, Step iii-1), Generating a control command to change the output of the optical repeater; And Transmitting the control command to the optical repeater through the base station. Surveillance method comprising a. The method according to claim 10 or 11, wherein In step iii-3), When the status information and quality information of the wireless repeater expected by the output change of the optical repeater in step iii-1) and the status information and quality information provided in step iii-2) are different, the optical repeater is abnormal. It is determined that there is a monitoring method. A system for monitoring a plurality of optical repeaters connected in series via a light path to a base station, A wireless repeater wirelessly connected to an optical repeater of the last stage connected to the last end of the plurality of optical repeaters from the base station to relay a wireless communication signal between the mobile terminal and the optical repeater of the final stage, wherein the wireless repeater includes a monitoring terminal Wherein the monitoring terminal measures the operational state and the radio quality of the radio repeater and provides corresponding state information and quality information; And A monitoring server connected to the base station, the monitoring server performing monitoring of each of the plurality of optical repeaters based on state information and quality information provided by the monitoring terminal and control of an output change of each of the plurality of optical repeaters Surveillance system comprising a. The method of claim 13, When the monitoring server determines that there is an abnormality in the wireless repeater as a result of the evaluation of the status information and the quality information provided by the monitoring terminal, the abnormality of each of the plurality of optical repeaters while changing the outputs of the plurality of optical repeaters, respectively. Surveillance system, characterized in that for determining. The method of claim 14, The monitoring server determines whether there is an abnormality while changing the output in the order of the optical repeater far from the base station starting from the optical repeater of the last stage. The method according to claim 14 or 15, The monitoring server is abnormal to each of the plurality of optical repeaters when the state information and the quality information of the wireless repeater and the state information and the quality information provided by the monitoring terminal are different from each other. Surveillance system, characterized in that there is.

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