KR20010045533A - Method for testing subscriber line of access network - Google Patents

Abstract

PURPOSE: A method for testing AN(Access Network) subscriber lines is provided to execute a test for an associated AN subscriber line in compliance with the request of an SLMOS(Subscriber Line Maintenance and Operation System). CONSTITUTION: If a test request command for an arbitrary subscriber line is inputted through an operator terminal, a processor in an SLMOS analyzes the test request command(201). In case that the management range of test execution is applicable only to an exchange side, the processor sends the test request command only to the exchange(203). Then the processor judges whether it is necessary for the SLMOS to maintain a standby state for the currently sent test request command(204). In case that it is necessary for the SLMOS to maintain the standby state, the processor makes SLMOS maintained at the standby state(205). If a test result is received from the exchange side(206), the processor notifies the operator terminal of the test result(207). However, if the management range of test execution is applicable only to an AN side, the processor sends the test request command only to the AN(209). Then the processor judges whether it is necessary for the SLMOS to maintain a standby state for the currently sent test request command(204). In case that it is necessary for the SLMOS to maintain the standby state, the processor makes SLMOS maintained at the standby state(205). If a test result is received from the AN side(206), the processor notifies the operator terminal of the test result(207).

Description

METHOD FOR TESTING SUBSCRIBER LINE OF ACCESS NETWORK}

The present invention relates to a subscriber line test method for an access network (hereinafter, referred to as AN), and more particularly, to an AN subscriber line corresponding to a request of a subscriber line maintenance & operation system (hereinafter referred to as SLMOS). An access network subscriber line test method for performing a test.

AN is a communication network that accommodates both analog and digital (BRI (Basic Rate Interface) and PRI (Primary Rate Interface) subscribers, and can be connected to an exchange using V5.2 protocol matching. Fiber Loop Carrier (WLL), Wireless Local Loop (WLL), Remote Access Switching Module (RASM), and so on, etc. Therefore, AN includes Public Switched Telephone Network (PSTN) subscriber terminals and Integrated Services Digital Network (ISDN). Subscriber terminals, analog leased lines, and digital leased lines can be connected.

SLMOS is a dedicated server for fault management. It collects subscriber's information that needs to be tested through information managed by subscriber telephone installation management system (weakly called TIMS) and connected through connected operator terminal. If any test for any subscriber included in the subscriber information is required, it was operated by requesting the test to be performed for the corresponding subscriber by the exchange and receiving the performance result from the exchange. When the test request signal is received from the SLMOS, the exchange performs test-related processing on the corresponding subscriber using the defined subscriber line test message and notifies the SLMOS of the result.

As described above, in the subscriber line test environment using the SLMOS, when the AN subscriber line is included in the subscriber information collected by the SLMOS, no test could be performed on this subscriber line. This is because SLMOS's management system cannot support ports at all, whereas AN manages subscribers with port numbers defined in the V5.2 protocol.

Thus, if the SLMOS management system is improved to support ports, subscriber line testing at the AN becomes possible. However, testing of subscriber lines between ANs and exchanges connected to ANs using the V5.2 protocol is not possible. This is because the V5.2 protocol currently provided does not support definition of subscriber line test messages. For this reason, in order to perform the overall test of the AN subscriber line including the exchange, the V5.2 protocol message between the exchange and the AN must be newly defined and the application part of the AN and the exchange must be newly implemented to conform to the newly defined protocol message. There are disadvantages.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned disadvantages, and according to the scope of the test performance management for the AN subscriber line to be tested, the subscriber line maintenance and operation system (hereinafter referred to as SLMOS) is exchanged with the AN. Its purpose is to provide an access network subscriber line test method that operates in a manner that requires each test request (also called Local Exchange, LE).

In order to achieve the above object, the method according to the present invention is a method for testing an arbitrary access network subscriber line by an operator of a subscriber line operation maintenance system (SLMOS) that is supported by a management system to enable port management of a subscriber. A first determination step of determining a test execution management range by analyzing a requested command when a test for any access network subscriber line is requested from the; A first test execution step of performing a test by sending a test request command corresponding to the exchange side only if the test execution management range is limited to an exchange receiving an arbitrary access network subscriber line; As a result of performing the first judgment step, when the test execution management scope includes both an access network and an exchange that accommodates an arbitrary access network subscriber line, a second test that sends out a test request command to the access network and the exchange side to perform the test, respectively. Performing step; As a result of performing the first judgment step, when the scope of the test execution management is limited to the access network, a third test execution step of performing a test by transmitting a test request command corresponding to the access network side is performed.

1 is a functional block diagram of a system for performing a method according to the invention,

2 is an operation flowchart of the subscriber line operation maintenance system shown in FIG. 1 in performing the method according to the present invention;

3 is an operational flow diagram of the exchange shown in FIG. 1 in carrying out the method according to the invention,

4 is an operational flow diagram of the access network shown in FIG. 1 in carrying out the method according to the invention.

<Explanation of symbols for main parts of drawing>

102: subscriber line operation maintenance system 104: operator terminal

110: exchanger (LE) 111: central control processor (CCP)

112: subscriber state management unit 113: call processing unit

114: switch 115: subscriber and relay line matching

116: Call Mixer 117, 123: V 5.2 protocol matching unit

120: access network (AN) 121: processor

122: test execution unit 124: line matching unit

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

1 is a functional block diagram of a system for performing a method in accordance with the present invention, wherein a subscriber line operation maintenance system (hereinafter abbreviated as SLMOS) 102, operator terminals 104 connected to SLMOS 102, V5. It consists of an exchanger 110 and an access network (hereinafter referred to as AN) 120 that are connected in a two protocol matching manner. The SLMOS 102 collects subscriber line information to be tested by referring to information managed by an unshown subscriber telephone installation management system (hereinafter, referred to as TIMS).

Switch 110 is a central control processor (hereinafter referred to as CCP) 111, subscriber status management unit 112, call processing unit 113, the switch 114 to provide a call path, subscriber and relay line matching unit 115, a call mixer 116, a V5.2 protocol matching unit 117, and the AN 120 includes a processor 121, a test execution unit 122, and a V5.2 protocol. It is composed of a matching unit 123 and a line matching unit 124.

FIG. 2 is an operation flowchart of the subscriber line operation preservation system shown in FIG. 1 in performing the method according to the present invention, and FIG. 3 is an operation flowchart of the exchange shown in FIG. 1 in performing the method according to the present invention. 4 is an operational flow diagram of the access network shown in FIG. 1 in carrying out the method according to the invention.

Next, the operation of the embodiment of the present invention will be described with reference to the accompanying drawings.

First, the SLMOS 102 collects information such as subscriber line and test type to be tested from a TIMS not shown in the same manner as before. As the test type information, information of a dimension that can distinguish whether to test the subscriber line status output, the eavesdropping function, or the sound transmission function for the corresponding subscriber line is collected. In addition, the management system of the SLMOS 102 is a case where the management of the port is implemented.

When a test request command for an arbitrary subscriber line is applied through the operator terminal 104 connected to the SLMOS 102 in a state in which information such as a subscriber line and a test type to be tested is collected in the SLMOS 102, the SLMOS is applied. The processor not shown in 102 proceeds to step 201 to analyze the authorized test request instruction.

As a result of the analysis, when the test execution management range corresponds only to the exchange 110, the process proceeds to step 203 through step 202, and sends a test request command corresponding to the exchange 110 only. If the SLMOS 102 needs to be kept in the standby state for the test request command currently sent to step 204, the process proceeds to step 205 to maintain the standby state. Then, when a corresponding test result is received from the exchange 110 side, the flow proceeds to step 207 to notify the operator terminal 104 of the test result and ends the operation.

However, as a result of checking in step 204 described above, if it is not necessary to maintain the standby state, the test operation is immediately terminated. As such, an example of terminating the test work immediately after sending out a test request command is a sound transmitting function.

On the other hand, if it is determined in step 202 that the test performance management range of the subscriber line for which the operator requested the test includes both the switch 110 and the AN 120, the process proceeds to step 208 and the switch 110 and the AN 120 In step 204, the test request command corresponding to the test request is issued. As a result of the determination in step 202, if the test performance management range of the subscriber line for which the operator has requested the test is only for the AN 120 side, the process proceeds to step 209 to issue a test request command only to the AN 120 side. The process then proceeds to step 204 and operates as described above.

The exchange 110 operates as shown in FIG. 3 in accordance with the operation of the SLMOS 102 described above.

That is, when a test request command is received from the SLMOS 102, the CCP 111 proceeds to step 301 to analyze the authorized test request command. At this time, the test request command is applied in the form of 'DIS-VPORT-STS: ASP, VINT, VPORT, [NO]' in case of subscriber line status output and 'TEST-ASLN-MON: [in case of eavesdropping function. DN], OP, [TIME] ', and in the case of the sound transmission function, it is applied in the form of' TEST-ASL-HWT: [DN], [TIME] '. When the test request command is applied as described above, the analysis in step 301 becomes a command existing in front of the ':'. For example, 'DIS-VPORT-STS' is the target.

Thus, if the analysis result indicates that the currently authorized command is 'DIS-VPORT-STS', the CCP 111 recognizes that the currently required test is the subscriber line status output and proceeds to step 302. In step 302, additional information existing at the end of ':' is analyzed to identify a corresponding subscription line. In other words, by analyzing the 'ASP (Access Switch Processor)' to identify the corresponding Access Switch Subsystem (ASS), and 'VINT (V5.2 INTerface)' to analyze the corresponding V5.2 interface identifier (ID) By analyzing the 'VPORT', we identify the V5.2 subscriber port in the V5.2 interface in the corresponding ASS, and the number of VPORTs for status output by 'NO' and the subscriber line status output required Understand the information. Such grasping may be handled by the CCP 111 executing a DIS-VPORT-STS command.

The CCP 111 then proceeds to step 303 to obtain status information of the corresponding subscriber line. The acquisition method consists of a search of the subscriber state management unit 112 using the result analyzed in step 302. When the state information of the corresponding subscriber line is obtained, the CCP 111 proceeds to step 304 and notifies the SLMOS 102 of the obtained result. Accordingly, the SLMOS 102 receives the test result in step 206 of FIG. At this time, the test result indicates whether the subscriber's line status is idle, busy, link parking, out of service, M_block, R_block, P_block. It is provided in the form that can check whether the status of F_block, D_block, etc.

On the other hand, when the analysis result in step 301, the current test request command is 'TEST-ASLN-MON' CCP 111 recognizes that the test for the interception function is required to proceed to step 305.

In step 305, the CCP 111 analyzes additional information on the rear end of ':' as in step 302 to determine the interception path and the interception time. That is, the number of V5.2 analog subscriber is analyzed by analyzing 'DN', the number of test personnel (operator terminal 104) is determined by analyzing 'OP', and the interception time is analyzed by analyzing 'TIME'. Figure out.

The process then proceeds to step 306 to determine whether the currently required interception function test is to be performed by the interworking between the AN 120 and the exchange 110 or centered around the exchange 110. . For this determination, in addition to the above-described 'DN', 'OP', and 'TIME' information, additional information for determining whether to interwork with the AN 120 described above is further added after the ':'.

If it is determined that the interworking with the AN 120 is required, the process proceeds to step 307 to open the switch passage for the operator (or test personnel). That is, when the call connection is requested to the call processing unit 113 using the DN information analyzed in step 305, the call processing unit 113 opens the switch 114 passage by the existing call processing procedure to match the subscriber and the relay line matching unit. Connect the call between the 115 and the operator terminal 104.

The flow proceeds to step 308 to connect the interception passage with the AN. That is, the CCP 111 requests a bearer channel connection for eavesdropping to a specific AN 120 through the call processor 113 of an ASS (not shown) to which any subscriber who is requested to be intercepted. The call processing unit 113 requests the bearer channel connection corresponding to the V5.2 protocol matching unit 117. At this time, the AN 120 also performs a passage connection process for interception by a test request command sent from the SLMOS 102. That is, when a bearer channel connection for interception is requested from the V5.2 protocol matching unit 117 in the switch 110, the V5.2 protocol matching unit 123 sends a response message thereto, and then the line matching unit ( The connection process for the relay contact provided in 124 is performed.

When all of the interception paths for the subscriber line corresponding to the connection process are connected, the flow proceeds to step 304 to notify the SLMOS 102 of the interception of the interception path connection completion. At this time, the eavesdropping path connection completion notification is processed so that a ring is sent to the operator terminal 104. Accordingly, the operator intercepts the corresponding subscriber line, and the interception time is determined by the authorized additional information 'TIME' along with the test request command. That is, the operator intercepts the corresponding subscriber line for the time set in 'TIME'.

On the other hand, if it is determined in step 306 that the currently required interception function test request does not require interworking with the AN 120, the CCP 111 proceeds to step 309 and the operator's DN as in step 307 described above. Open the switch passage in the exchange 110 to the operator terminal 104 using the number, proceed to step 310 to connect the call mixer 116 and the open passage to the operator terminal 104 in step 309, After processing to be connected to the corresponding subscriber line through the call processing unit 113 and the V5.2 protocol matching unit 117, the flow proceeds to step 304 so that the ring is sent to the operator terminal 104 as described above.

As a result of the analysis in step 301, if the currently authorized test request command is 'TEST-ASL-HWT', the CCP 111 proceeds to step 311 by recognizing that the sound transmission is requested. In step 311, the CCP 111 analyzes 'DN' and 'TIME' which are additional information existing after the ':'. In other words, 'DN' is analyzed to identify V5.2 analog subscriber number, and 'TIME' is analyzed to determine the sound transmission time.

Then, the process proceeds to step 312 to obtain the subscriber's status information as a reference to the subscriber status management unit 112 using the information analyzed in step 311. The subscriber status information obtained determines whether the corresponding subscriber is in a busy state. As a result, if the corresponding subscriber is in a busy state, the process proceeds to step 314 through step 313 to control the call processing unit 113 to transmit the alarm to the corresponding subscriber, and then ends the test work. Accordingly, the alarm is sent to the corresponding subscriber through the V5.2 protocol matching unit 117 in the exchange 110, the V5.2 protocol matching unit 123 and the line matching unit 124 in the access network 120, and the subscriber is sent. Will hear the alarm.

However, as a result of checking in step 313, if the subscriber is not in a busy state, the alarm can not be sent, so the CCP 111 notifies the SLMOS 102 of the current subscriber status and terminates the sound transmission test work. .

AN 120 operates as shown in FIG. 4 in accordance with the operation of SLMOS 102 shown in FIG.

That is, when a test request command sent from the SLMOS 102 is received, the processor 121 analyzes the test request command. At this time, the analysis is performed as in step 301 of FIG. That is, by analyzing the command input in the preceding stage based on the ':', whether the currently received test request command requires a voltage / resistance / CAP (capacitance) value for an arbitrary subscriber line or an eavesdropping function test, Determine if you are asking for a hearing.

As a result of the determination, when the voltage / resistance / CAP value is requested, the processor 121 proceeds to step 402 and analyzes the additional information of the command as shown in step 302 of FIG. 3 to identify a corresponding subscriber line. Next, the process proceeds to step 403, based on the result analyzed in step 402, with reference to the test execution unit 122 to collect the information of the corresponding subscriber line, and extracts the voltage, resistance or CAP value required by the operator from the collected information. do. The flow proceeds to step 404 to notify the SLMOS 102 of the extracted voltage, resistance, or CAP value and ends the operation.

As a result of the analysis in step 401, when the interception function is requested, the process proceeds to step 405 to analyze the additional information of the command to determine the subscriber line and the eavesdropping time, etc. As mentioned in, the interception channel for the corresponding subscriber line is opened during the interception time, and the operation ends.

In addition, if the analysis results in step 401, when the sound transmission is required, the process proceeds to step 407 to analyze the additional information of the command to determine the subscriber line and the sound transmission time, etc., and proceeds to step 408 to listen to the listening passage Open during sending time and finish work.

As described above, the present invention implements an AN subscriber line test using SLMOS by sending a test request command corresponding to the exchange and the AN according to the test execution management range currently required by the operator so that the corresponding test is performed. In addition, the V5.2 protocol can provide the desired AN subscriber line test environment using SLMOS without the need for new definition work.

Claims (2)

A method for testing an arbitrary access network subscriber line by an operator of a subscriber line operation maintenance system (SLMOS) in which a management system is supported to enable subscriber port management, If a test for any access network subscriber line is requested from the operator, analyzing a requested command to determine a test execution management range; A first test execution step of performing a test by sending a test request command corresponding to the exchange side only when the test execution management range is limited to an exchange accommodating the arbitrary access network subscriber line; And performing a test by sending a test request command to the access network and the exchange side, respectively, if the test execution management scope includes all of the access network and the exchange receiving the arbitrary access network subscriber line. 2 test performance stage; And a third test execution step of performing a test by sending a test request command corresponding to only the access network side when the test step management result is limited to the access network. Access network subscriber line test method. 2. The apparatus of claim 1, wherein in each of the first test execution step, the second test execution step, and the third test execution step, the access network and the exchange analyze additional information contained in a test request command received from the subscriber line operation preservation system. After determining the subscriber line required for the test, the access network subscriber line test method characterized in that it is operated to perform the corresponding test.