KR100698244B1 - Method and apparatus for monitoring rf repeater - Google Patents

Abstract

The present invention relates to a monitoring system for an RF repeater that amplifies an RF signal transmitted from a user terminal and a wireless base station and transmits the amplified RF signal to the wireless base station and the user terminal, respectively. According to the present invention, an RF repeater monitoring system for amplifying an RF signal transmitted from a user terminal and a wireless base station and transmitting the amplified RF signal to the wireless base station and the user terminal, respectively, is installed in the RF repeater and is provided from the RF repeater. An NMS that collects initial data, idle data, and error data, executes the RF repeater according to a command execution message from a data transmission / reception terminal, and collects execution result data; Interconnect with the NMS to perform two-way communication with the NMS, and transmit initial data, idle data, error data, and execution result data generated in the RF repeater in the form of a short message, and transmit the command execution message from the wireless base station. A data transmission and reception terminal for receiving and transferring the data to the NMS; A repeater management server managing a failure state of the RF repeater; And transmitting initial data, idle data, error data, and execution result data transmitted from the data transmission / reception terminal to the relay management server in the form of a short message, and transmitting the command execution message from the relay management server via the wireless base station. It is provided with a short message center for transmitting to a data transmission and reception terminal.

Description

High frequency repeater management method and system {METHOD AND APPARATUS FOR MONITORING RF REPEATER}             

1 is a block diagram of an RF repeater management system according to the present invention;

2 is a detailed block diagram of an NMS (network management system) shown in FIG. 1;

3 is a detailed block diagram of a repeater management server shown in FIG. 1;

4 is a flowchart illustrating a process of processing an initial data message in the RF repeater management system of the present invention;

5 is a flowchart illustrating a process of processing an idle data message in the RF repeater management system of the present invention;

6 is a flowchart illustrating a process of processing a command request message in the RF repeater management system according to the present invention;

7 is a flowchart illustrating a process of processing a fault data message in the RF repeater management system of the present invention.

Explanation of symbols on the main parts of the drawings

100: RF repeater module 102: RF repeater                 

104: NMS 106: PCS terminal

110: Short Message Center 120: Repeater Management Server

130: user group

The present invention relates to a radio wave environment management system of a CDMA wireless communication system, and more particularly, to a management system and a method of an RF repeater using a PCS terminal.

With the rapid development of computer, electronic and communication technologies, various wireless communication services using wireless networks have been provided. The most basic wireless communication service is a wireless voice call service that provides voice calls wirelessly between mobile terminal users regardless of time and place. Wireless communication systems use radio base stations and RF repeaters to expand coverage. The wireless base station is installed in an optimal location according to the number of subscribers distributed in the service area in the high traffic density and the number of subscribers that the wireless base station can accommodate while satisfying the quality of service required by the wireless communication network.

Meanwhile, the RF repeater amplifies a low output radio signal received from the radio base station and the user terminal to transmit an RF signal to the radio terminal and the radio base station for smooth communication between the base station and the user terminal. These RF repeaters are used to cover the shielded areas or shadowed areas such as basement, tunnels, subways, and rural areas of buildings, where traffic density is relatively low, or where signals are difficult to reach from base stations on the ground. However, these shaded areas may cause performance deterioration of call setup failure due to new building construction, relocation of base stations, and interference of third party repeaters. Therefore, the monitoring and maintenance of the RF repeater must be continuously performed to continuously provide the optimum call quality to the subscriber.

One method of monitoring an RF repeater is to use a terminal, for example, a computer provided with a personal data assistant (PDA) and a repeater management program. In this method, when the terminal is installed in the RF repeater and the signal is transmitted from the central management center to the terminal, the computer connected to the terminal determines whether there is a reception error of the received signal. However, this method has the disadvantage of requiring a computer in addition to the terminal to determine the error of the repeater.

Another monitoring method for an RF repeater is to install a network management system (NMS) on the RF repeater. This method manages the state of the RF repeater by sending data to the central management center through the NMS, which serves as equipment control and communication status monitoring and reporting for the RF repeater. However, the RF repeater monitoring method using the NMS only manages the state of the surrounding radio environment. As such, since the management system for the RF repeater is not established, it is difficult to identify the operation state of the RF repeater equipment and the detected failure state.

Therefore, the present invention was invented according to the above-described needs, and an object of the present invention is to collect data on the management of the RF repeater and the surrounding radio environment by using the PCS terminal as a device for transmitting / receiving data for the RF repeater. The present invention provides a management system of an RF repeater for managing mobile communication services in a corresponding region and a management method thereof.

According to the present invention for achieving the above object, the monitoring system of the RF repeater to amplify the RF signal transmitted from the user terminal and the wireless base station and to transmit the amplified RF signal to the wireless base station and the user terminal, respectively, the RF An NMS installed in a repeater to collect initial data, idle data, and error data from the RF repeater, to execute the RF repeater according to a command execution message from a data transmission / reception terminal, and to collect execution result data; Interconnect with the NMS to perform two-way communication with the NMS, and transmit initial data, idle data, error data, and execution result data generated in the RF repeater in the form of a short message, and transmit the command execution message from the wireless base station. A data transmission and reception terminal for receiving and transferring the data to the NMS; A repeater management server managing a failure state of the RF repeater; And transmitting initial data, idle data, error data, and execution result data transmitted from the data transmission / reception terminal to the relay management server in the form of a short message, and transmitting the command execution message from the relay management server via the wireless base station. Characterized in that the short message center for transmitting to the data transmission and reception terminal.

According to another embodiment of the present invention for achieving the above object, the RF repeater management method of the repeater management system including an RF module consisting of an RF repeater, NMS and PCS terminal, a short message center and a repeater management server, Determining, at the repeater management server, a failure state of the RF repeater by receiving initial data collected from the RF repeater of the RF repeater module; Determining, by the relay management server, a failure state of the RF repeater by periodically reporting idle data collected from the RF repeater of the RF repeater module; Determining, by the relay management server, a failure state of the RF repeater by transmitting a command execution processing message for executing the RF repeater to an NMS of the RF repeater module and reporting the execution result; The relay management server, characterized in that it comprises the step of determining the failure state of the RF repeater by receiving the error data generated in the RF repeater of the RF repeater module.

Other objects and features of the present invention in addition to the above objects will become apparent from the description of the embodiments with reference to the accompanying drawings.

Hereinafter, exemplary embodiments of the present invention will be described with reference to FIGS. 1 to 7.

1 shows a block diagram of an RF repeater management system constructed in accordance with the present invention. As shown in FIG. 1, the RF repeater management system of the present invention includes an RF repeater module 100, a short message center 110, a repeater management server (RASS) 120, and a user group 130.

The RF repeater module 100 includes an RF repeater 102, an NMS 104, and a PCS terminal 106, and transmits data collected by the RF repeater 100 to the repeater management server 120, and the repeater management server. Perform the function of reporting the status of the RF repeater 102 to the repeater management server 120 by executing the RF repeater 102 and providing the execution result to the repeater management server 120 according to the command indicated by the 120. do.

In the RF repeater module 100, the RF repeater 102 is a low power RF signal transmitted from the user terminal 112 and the wireless base station 114 for smooth wireless communication between the user terminal 112 and the wireless base station 114. Amplifies and transmits the amplified RF signal to the wireless base station 114 and the user terminal 112, respectively.

The NMS 104 is installed in the RF repeater module 100 to collect initial data, idle data, and error data from the RF repeater 102 and report it to the repeater management server 120, while providing it from the repeater management server 120. The RF repeater 102 is executed according to the command, and the result is reported to the relay management server 120. The NMS 104 is interconnected with the RF repeater 102 through a serial port such as RS-232C to perform two-way communication. The PCS terminal 106 is interconnected by the NMS 104 and the RS-232C serial port to perform bidirectional communication with the NMS 104.

The PCS terminal 106 prepares initial data, idle data and error data collected from the RF repeater 102 by the NMS 104 in the form of a short message, and transmits the short message to the short message center 110 via the base station 114. do. In addition, the PCS terminal 106 transmits the command execution message transmitted from the relay management server 120 to the NMS 104 such that the RF repeater 104 is executed according to the command under the control of the NMS 104, and The execution result is transmitted back to the short message center 110 in the form of a short message.

The short message center 110 transmits the short message transmitted wirelessly from the PCS terminal 106 to the relay management server 120 and sends the command of the short message transmitted from the relay management server 120 to the PCS terminal 106. Perform relay function.

FIG. 2 shows a detailed block diagram of the NMS 104 shown in FIG.

The NMS 104 includes a repeater manager 200 composed of an initial data collector 206, an idle data collector 208, an error data collector 210, and a command execution unit 212, and a message analyzer 214. And a short message processing unit 202 composed of a message short message transmitting and receiving unit 216 and a data processing unit 218.

The initial data collector 206 collects initial data including RF repeater related configuration information option values from the RF repeater 102, and the idle data collector 208 collects idle data generated by the RF repeater 102 and its data. Collecting idle data including the occurrence time, the error data collection unit 210 collects the error data generated by the RF repeater 102, the command execution unit 212 executes the command provided by the repeater management server 120 Run the RF repeater according to the message, and collect the result data. Initial data, idle data, error data, and execution result data collected from the RF repeater 102 are provided to the data processing unit 218.

The message analyzer 214 processes the initial data, idle data, error data, and execution result data provided by the relay management block 202 in the form of a short message, and the short message transceiver 216 processes the data processed in the form of a short message. Is transmitted to the short message center 120 via the PCS terminal 106. In addition, the short message transmitting and receiving unit 216 receives the command execution message transmitted from the relay management server 120 and provides the message analysis unit 214, the message analysis unit 214 from the short message transmitting and receiving unit 216 The provided command execution message is analyzed and transmitted to the command execution unit 212, so that the RF repeater 102 is executed according to the command.

FIG. 3 shows a detailed block diagram of the repeater management server 120 shown in FIG. 1.

The repeater management server 120 includes a short message receiver 302, a short message analyzer 304, a short message transmitter 306, an initial data processor 308, an idle data processor 310, and an error data processor 312. And a command data processing unit 314.

The short message receiving unit 302 receives a short message including initial data, idle data, error data, and execution result data of the RF repeater module 100 transmitted from the PCS terminal 106 and analyzes the received short message. Transfer to section 304. The short message transmitter 306 transmits the command provided by the user group 112 to the short message center 110.

The message analyzing unit 306 analyzes the short message received from the short message receiving unit 302 and divides the short message into initial data, idle data, error data, or execution result data, and corresponds to the initial data processing unit 308, respectively. The data is transferred to the idle data processor 310, the error data processor 312, and the command data processor 314.                     

The initial data processor 308 processes the initial data transmitted from the RF repeater module 100 to provide the user group 130, and the idle data processor 310 processes the idle data transmitted from the RF repeater module 100. To the user group 130, and the error data processor 312 processes the error data transmitted from the RF repeater module 100 to the user group 130, and the command data processor 314 is an RF repeater module. The command execution result data transmitted from the 100 is processed and provided to the user group 130 to manage the failure state of the RF repeater 104. In addition, the command data processing unit 314 transmits the command provided from the user group 130 to the short message center 110 through the short message sending unit 306, whereby the RF repeater 102 is transmitted by the NMS 104. To be executed according to the command.

All data transmitted from the NMS 104 of the RF repeater module 100 to the repeater management server 110 determines whether or not normal transmission is performed using the L3 Ack. Of the short message in the NMS 104 itself. If L3 Ack. If the signal is not received within a preset time, for example 20 seconds, it attempts to retransmit 5 times in 20 second increments.

At this time, the protocol data format transmitted from the NMS 104 to the relay management server 110 is shown in Table 1 below.

Header field (13 characters total)  Device ID (3 characters) Server Command Sequence ID (5 characters)  Action Code (1 character)  Data Count (1 character)  Data All Count (1 Character)  Repeater Type (2 Characters)  Data Field (Total 65 characters except start and end delimiter '!'  data

* Header field: 13 characters in total.

-Delimiter between each field is not used.

Each field size is fixed, and each field fills the content by the specified character.

* Use '!' To indicate the beginning and end of a data field.

* Data field

-If a time expression is required, the time representation in the form of YYYYMHDDHH24MISS comes first, and the test result representation and placement may change.

-If test results need to be expressed, the format of O / X, etc. is at the beginning, and the time expression and the placement can be changed.

-Use '&' (optional) as delimiter to separate each item item.

-Use ':' (optional) as a delimiter character that separates multiple items such as high / low limit values within each item.

* Device ID: Device ID is divided into three characters NMS 104 of the RF repeater module 100, using the characters 0 ~ 9, A ~ Z, a ~ z.

-The order of Device ID is 62 hexadecimal number made of the above letters. The order is as follows.                     

0, 1,. . . , 9, A, B, C,. . . , Y, a, b, c,. . ., y, z

For example, the sequence of assigning Device ID is 000, 001,. . . , 009, 00A, 00B, 00Z, 00a, 00b,. . 00z, 010, 011,. . , zzz in order.

* Server Command Sequence ID (5 characters)

-Use Hex code: 1,048,576 sequence numbers can be generated

-For each command, the device distinguishes each result by attaching the command ID to the result.

* Action Code (1 character)

-Define each kind of message.

-Items of each message are defined as below, but new function can be added and items can be added.

I: Initial Data Message

Q: Device Option Reporting Message

D: Idle Data Message

C: Control Execution and Result Message

F: Fault Data Message

* Data Count (1 character)

If the short message is more than two packets, the down-count method is used.

-Hex code use: Up to 16 short messages can be processed as one data.

For example, a total of four short messages are one data, set to '3' for sending the first short message and to '2' for the second short message.

* Repeater Type (2 characters)

-Repeater Type is 2 characters and it is a field to distinguish the type of repeater.

-Whenever a new RF repeater type is added, it can be added after defining a new type.

For example, NO stands for Notch Repeater, MW stands for Microwave Repeater, CW stands for Variable Repeater, and SR stands for Small Repeater.

4 is a flowchart illustrating a process of processing an initial data message transmitted from the RF repeater module 100 to the repeater management server 120.

In step S410, when the power is turned on, the NMS 104 collects values necessary for 'Initial Data Reporting' while communicating with the RF repeater 102. At this time, the repeater management server 120 is in a reception waiting state for receiving an initial data report.

In step S420, data related to the 'initial data report' collected by the NMS 104 is transferred to the PCS terminal 106, and in the short message form of the protocol format illustrated in Table 1 below in the PCS terminal 106 Is converted to and transmitted to the management server 120 via the short message center 110. At this time, when a device option value is changed in the short message transmitted from the repeater module 100 to the management server 106, the 'initial data report' of the changed short message is retransmitted.

In step S430, the relay management server 120 inserts / updates the configuration information in the relay management server 120 with reference to the short message transmitted from the RF relay module 100. Perform the process.

In step S440, the relay management server 120 transmits an 'initial data confirming' message or an initial data modifying message to the RF relay module 100 through the short message center 110. To send.

In step S450, the NMS 104 of the RF repeater module 100 transmits a 'Server Response Ack' message to the relay management server 120 indicating that a server response has been received.

In the above-described step (S410), the data format of 'initial data report' is as follows.

(1) header fields

* The server command sequence ID is filled with 'x'.

* Action code is filled with 'I'

(2) data fields

Repeater related configuration information option values ! Option_ID Option_Value1: Option_Value2 & Option_ID Option_Value1: Option_Value2 & ....!

* Each item is separated by a delimiter "&".

* option

... & Option_ID (1 character) Option_Value1: Option_Value2 & ...

-Option_ID is unconditionally separated by the first character, and there is no delimiter between Option_ID and Option_Value.

Use the delimiter ":" to separate between Option_Values. For example, "R-80: 95", "B1.5" and the like can be used.

If there is no response from the management server 120 for a preset period, e.g. 5 minutes, the same content is retransmitted at a preset period, e.g. 5 minute intervals until a response is received.

The data format at the time of 'initial data check' or 'initial data modification' in step S440 described above is as follows.

(1) header fields

* The server command sequence ID must be specified.

* Action Code: 'Q'

(2) data fields

Message type Option value to be changed  ! 1Char & Option_ID Option_Value1: Option_Value2 & Option_ID Option_Value1: Option_Value2 & ....!

Message type: The message type consists of one uppercase letter O and one M.

O: indicates 'Initial Data OK'. However, if the server response ACK signal is not received from the NMS 104 for 5 minutes, the same data is retransmitted at a predetermined number of times, for example, three times at five minute intervals, and then treated as a failure event.

-M: It means that option should be modified by referring to option field later.

* Options: The options are as follows.                     

... & Option_ID (1 character) Option_Value1: Option_Value2 & ...

-Option_ID is unconditionally separated by the first character, and there is no delimiter between Option_ID and Option_Value.

Use the delimiter ":" to separate between Option_Values. For example, it may be used as "S80: 95", "P3", and the like.

In the aforementioned step (S450) 'server response ACK' is as follows.

(1) header fields

The server command sequence ID uses the ID received from the management server.

* Action Code: 'Q'

Message type ! 1Char

* Message type (1 character)

O (uppercase): Initial data confirming or change OK. NMS 104 transitions to an idle data collection state without further packet exchange.

D: The option value received from the relay management server 120 is different from the value stored in the NMS 104. Thereafter, without further packet exchanges, the device transitions to the IDLE data collection state (for option_Value modifications while the device is running, it MUST specify this message type).

FIG. 5 illustrates a flowchart describing a process of processing an 'idle data message' transmitted from the RF repeater module 100 to the repeater management server 120.

In step S510, the NMS 104 of the repeater module 100 obtains data necessary for idle data transmission from the RF repeater 102 for each period of reporting an idle data message, and then, via the short message center 110. The relay management server 120 transmits. In this case, the repeater management server 120 processes the failure event if the idle data does not arrive when the idle data reporting cycle arrives. In this regard, the NMS 104 uses the device ID value to adjust the time for sending idle data.

The data format of the 'idle data message' is as follows.

(1) header fields

* The server command sequence ID is filled with 'x'.

* Action Code: 'D'

(2) data fields

Time IDLE data  ! Year Month Day Hour Min. Sec. & Option_ID Option_Value & Option_ID Option_Value & ....!

* Time: Year is 4 characters, 2 characters for the rest of the items.

For example, '11021008220735' represents 22: 7: 35 seconds on October 8, 1102.

* Use delimiter "&" for each field delimiter.

Idle data option

... & Option_ID (1 character) Option_Value & ...

-Option_ID is unconditionally separated by the first character, and there is no delimiter between Option_ID and Option_Value. For example, "S75", "T18", etc.                     

-If there are multiple collection values for one item, use ':' delimiter character for each value. For example, "S157: 157: 157" may be used.

6 is a flowchart illustrating a 'command execution' process performed between the RF repeater module 100 and the repeater management server 120.

In step S610, when the NMS 110 of the repeater module 100 receives a 'Command Request' message from the repeater management server 120, the NMS 110 executes the RF repeater 102 according to the corresponding command. Get the result.

In step S620, the NMS 110 transmits a 'Command Request Report' message to the repeater management server 120, and the repeater management server 120 sends a 'command execution' message and then schedules it. If the 'command execution result' is not received until the time has elapsed, it is timed out.

The data format of the 'command execution' message in step S610 is as follows.

(1) header fields

* The server command sequence ID must be specified.

* Action Code: 'C'

(2) data fields

Command Request  ! Comm.Type & Comm. Count & Comm. Parameter1: ...!

* Use "&" as the delimiter character to separate each item.

* Command Execution Related Format: Each parameter item is separated by ':'.                     

* Command Count shows the number of executions of the command.

* Command Parameter 1, Command Parameter 2, ... represent parameters for the corresponding command, and a plurality of commands may be listed.

In the above-described step (S620), the data format of the 'command execution result' message is as follows.

(1) header fields

* The server command sequence ID received from the repeater management server 120 must be specified.

* Action Code: 'C'

(2) data fields

Time Command Request Report ! Year Month Day Hour Min. Sec. Status Option_ID1 Option_Value1: Option_ID2 Option_Value2: ....!

* Time: Year is 4 characters, 2 characters for the rest of the items.

For example, '11021008220735' represents 22: 7: 35 seconds on October 8, 1102.

Status: shows the execution result of the command.

O (uppercase letter) indicates that execution was successful.

X (uppercase letters): Notifies execution failed. After that, the contents are treated as a failure.

Option_ID (1 character, optional): An ID for any value that can be obtained as a result of executing the command.

Option_Value (optional): A value for each Option_ID.

* There is no delimiter character between Option_ID and Option_Value.

* The delimiter character for each option is ':'.

FIG. 7 illustrates a process of processing a 'Fault Data' message transmitted from the RF repeater module 100 to the repeater management server 120.

In step S710, the NMS 104 of the RF repeater module 100 detects an error (including Ack. Data) occurring in the RF repeater 102 and stores the data regarding the error in the short message center 110. Transmit to the repeater management server 120 via. In this case, the repeater management server 120 processes one error in the RF repeater 102 when the error data is repeated without the clear code described below.

In the above-described step (S710) the data format of the 'error data' is as follows.

(1) header fields

* The server command sequence ID is filled with 'x'.

* Action Code: 'F'

(2) data fields

Time Fault Data ... ! Year Month Day Hour Min. Sec. Fault Code (5 characters) Option_ID1 Option_Value1: Option_ID2 Option_Value2: .... & ...!

* Time: Year is 4 characters and 2 characters are used for the rest of the items. Specify the time when the error occurred (no delimiter character).                     

For example, '11021008220735' represents 22: 7: 35 seconds on October 8, 1102.

* The delimiter character for each error uses ":".

* Error code

Use Hexa code.

-It specifies the error code defined for each repeater module 100.

Codes beginning with even numbers (0, 2, 4, 6, ...) are error codes.

Codes beginning with odd numbers (1, 3, 5, 7, ...) are error clear codes.

* Option_ID (1 character, optional): ID of a value that requires additional option values among some error data.

Option_Value (optional): A value for each Option_ID.

* There is no delimiter character between Option_ID and Option_Value.

* Use ':' as the delimiter character of each option.

Therefore, the present invention uses the PCS terminal as a device for transmitting and receiving data for the RF repeater to collect data on the management of the RF repeater and the surrounding radio environment and transmit the collected data to the repeater management server of the RF repeater Reporting a failure state, the relay management server may determine the failure state of the RF repeater by transmitting a command for executing the RF repeater and receiving the execution result.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit and scope of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

Claims (8)

In the monitoring system of the RF repeater which amplifies the RF signal transmitted from the user terminal and the wireless base station and transmits the amplified RF signal to the wireless base station and the user terminal, An NMS installed in the RF repeater to collect initial data, idle data, and error data from the RF repeater, to execute the RF repeater according to a command execution message from a data transmission / reception terminal, and to collect execution result data; Interconnect with the NMS to perform two-way communication with the NMS, and transmit initial data, idle data, error data, and execution result data generated in the RF repeater in the form of a short message, and transmit the command execution message from the wireless base station. A data transmitting / receiving terminal transmitting to the NMS; A repeater management server managing a failure state of the RF repeater; And Initial data, idle data, error data, and execution result data transmitted from the data transmission / reception terminal are transmitted to the relay management server in the form of a short message, and the command execution message from the relay management server is transmitted via the wireless base station. RF repeater management system comprising a short message center for transmitting to a data transmission and reception terminal. The method of claim 1, The repeater management server, A short message receiving unit which receives the short message from the short message center; A message analyzing unit analyzing the short message received by the short message receiving unit and classifying the initial data message, the idle data message, the command execution result message and the error data message; A message including an initial data processor for processing the initial data message, the idle data message, the command execution result message, and an error data message classified according to the message analyzer, an idle data processor, a control data processor, and an error data processor; Processing module; And a short message transmitter for transmitting the command execution message to the short message center. The method of claim 1, The initial data message includes a configuration information option value of the RF repeater collected from the RF repeater by the NMS, The repeater management server requests to modify a configuration information option value included in the initial data message, and receives a response to the request to determine the failure state for the RF repeater. The method of claim 1, The idle data message includes idle data generated in the RF repeater and an occurrence time of the idle data, The repeater management server, the RF repeater management system, characterized in that for determining the failure state for the RF repeater by receiving the idle data message. The method of claim 1, The command execution result message includes execution result data of the RF repeater executed by the NMS, And the relay management server determines a failure state for the RF repeater by receiving the command execution result message. The method of claim 1, The error data message includes error data of the RF repeater occurring in the RF repeater, The repeater management server RF repeater management system, characterized in that for determining the failure state for the RF repeater by repeatedly receiving the error data message. The method of claim 1, The data transmitting and receiving terminal is an RF repeater management system, characterized in that the PCS terminal. In the RF repeater management method of the repeater management system including an RF module consisting of an RF repeater, NMS and PCS terminals, a short message center and a repeater management server, Determining, at the repeater management server, a failure state of the RF repeater by reporting initial data collected from the RF repeater of the RF repeater module; Determining, by the relay management server, a failure state of the RF repeater by periodically reporting idle data collected from the RF repeater of the RF repeater module; Determining, by the relay management server, a failure state of the RF repeater by transmitting a command execution processing message for executing the RF repeater to an NMS of the RF repeater module and reporting the execution result; In the relay management server, RF relay management method comprising the step of determining the failure state of the RF repeater by receiving the error data generated in the RF repeater of the RF repeater module.

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