KR0174404B1 - Subscriber Service Control Signal Tracking Function - Google Patents

Abstract

The present invention provides a network-user between a subscriber and an exchange required for a subscriber's communication service by inputting a simple man-machine communication (MMC) command of an operator when a subscriber's communication service fails in a distributed control exchange system. How to implement subscriber service control signal tracking function that enables fast disaster recovery processing by informing the operator of the status of inter-protocol processing and the occupancy status of network resources such as tone and switch of the switching system. It is economical because there is no need to possess and install expensive protocol analysis equipment separately for maintenance of subscriber communication service, and the operator controls for subscriber communication by inputting simple MMC command using information related to subscriber's configuration. To understand the signal flow at a glance In addition, when a failure occurs in the communication service, the location and cause information of the failure can be known, so that the operator can quickly recover from the failure.

Description

Subscriber Service Control Signal Tracking Function

1 is an exemplary configuration diagram of a distributed control exchange system to which the present invention is applied.

2 is a detailed flowchart illustrating an embodiment of a registration process in a method for implementing a subscriber service control signal tracking function according to the present invention.

3 is a detailed flowchart of an exemplary embodiment of a method of implementing a subscriber service control signal tracking function according to the present invention.

4 is a detailed flowchart illustrating one embodiment of a cancellation process of a method for implementing a subscriber service control signal tracking function according to the present invention.

* Explanation of symbols for main parts of the drawings

10: access exchange subsystem / access exchange processor (ASS / ASP)

20: central control subsystem / operation and maintenance processor (CCS / OMP)

The present invention provides a network-user between an exchange and a subscriber required for a subscriber's communication service by inputting a simple man-machine communication (MMC) command of an operator when a subscriber's communication service fails in a distributed control exchange system. How to implement the subscriber service control signal tracking function that enables the rapid recovery process by informing the operator of the status of inter-protocol processing and the occupancy status of network resources such as tones and switches of the switching system. It is about.

In particular, the present invention is essential to provide communication services to digital subscribers (that is, ISDN subscribers) such as analog and integrated service digital network (ISDN) switchers, ISDN personal computers, ISDN video conferencing systems, etc. The status of the network resources, such as the step-by-step progress of the signaling protocol between the subscriber (user) and the exchange (network), the tone of the exchange, the switch, etc., are stored in the memory of the exchange by software and then displayed to the operator of the exchange.

Accordingly, the present invention provides a subscriber with a complaint about the service (i.e., a communication failure such as a subscriber's communication failure, confusion, or communication disconnection), which part is a failure (i.e., a problem largely on the exchange side, and a subscriber side). Whether the problem is a terminal). In addition, in the case of a problem on the subscriber side, it is possible to know whether there is a problem with a signaling protocol, a problem with a physical line, or a problem with a software function of the terminal.

If there is a problem on the exchange side, the present invention is to determine whether there is a problem in the signal protocol, whether the tone resource on the exchange side is exhausted, the tone board is broken, or not using all the switch resources, By identifying the specific cause of the failure such as the failure and showing the location and cause of the failure to the operator to enable quick recovery process, the operator is shown all the steps of the control necessary for the subscriber's communication service. The cause of the failure is more specifically provided to the operator to enable faster and more accurate failure recovery.

The fault diagnosis function of the conventional subscriber communication service relies on the confirmation of the presence or absence of hardware signals using measurement equipment, and only expensive protocol analyzers can be connected to the outside of the exchange system to confirm only the protocol abnormality between the network and the user.

For example, in order to check the failure of the subscriber station by relying on hardware rather than software, the subscriber's communication is tracked by tracking the state of the subscriber port according to the hardware event detection method for the subscriber port in the private exchange instead of the local exchange. Check the service for failure.

However, in the related art, when the switching system accommodated by the subscriber is mechanical, there is a problem in that the control signal required for the subscriber communication service cannot be stored in the memory and the control signal cannot be tracked.

The present invention devised to solve the above problems should be handled for the corresponding communication service by a simple human-machine communication (MMC) command input of the operator when a failure of the communication service of the subscriber accommodated in the distributed control exchange system occurs. It shows the status of protocol processing between the exchange and subscribers, and the occupancy status of network resources such as the tone and switch of the switching system to the operator through the output medium. The purpose of the present invention is to provide a method for implementing a subscriber service control signal tracking function to enable fast failover recovery.

In order to achieve the above object, the present invention provides a subscriber service control signal tracking function registration method applied to a distributed control exchange system. Registering the service control signal tracking function for each subscriber by checking the accuracy; When providing communication services to subscribers, such as voice communication, data communication and video conferencing, the step-by-step processing situation, tone of control signals, which may cause service failure in the exchange by the operator's human-machine communication (MMC) instruction. And a second step of performing a service control signal tracking function for each subscriber by notifying an operator of a network resource inside an exchange such as a switch in real time by location and step by step. And a third step of canceling the service control signal tracking function for the subscriber with respect to the normal input parameter by checking the accuracy of the input parameter of the operator when the call trace cancellation request is made.

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

FIG. 1 is an exemplary configuration diagram of a distributed control switching system to which the present invention is applied. In the distributed control switching system, a tracking function includes a plurality of access switching subsystems (ASS) 10 and a central control subsystem (CCS). Central Control Subsystem (20).

The access exchange subsystem (ASS) is classified into ASS-S, which accommodates only analog subscribers, ASS-I, which accommodates digital subscribers only, and ASS-SI, which accommodates both analog and digital subscribers, depending on the type of subscriber accommodated in the exchange.

First, an Access Switching Processor (ASP) 10, which is a processor of a plurality of Access Switching Subsystems (ASS) 10, performs digital subscriber circuit mode control (DCC) that performs a call processing function. Block 11, call trace and path setup (CTPS) block 13 performing call tracking control, and call performing a set of common processing routines, such as network resources, and a management function. Each of the CSL (Call Shared Library) blocks 12 is mounted to perform subscriber control signal tracking.

On the other hand, an Operation and Maintenance Processor (OMP) 20, which is a processor of the Central Control Subsystem (CCS) 20, collects call trace results from multiple access exchange subsystems (ASS) 10. Call trace and path setup maintenance (CTPM) block 21 is provided to provide the operator with trace results through the output medium.

2 is a detailed flowchart illustrating a registration process of a subscriber service control signal tracking function implementation method according to the present invention. The matching function with the operator is performed by the operation and maintenance processor of the central control subsystem (CCS) 20. The call tracking and routing maintenance (CTPM) block 21, implemented in OM [], performs the actual subscriber-specific tracking registration function of the access exchange processor of the access exchange subsystem (ASS) 10 that accepts the subscriber. Call tracking and routing (CTPS) block 13 implemented in (ASP).

As shown in Figure 2, the registration process of the subscriber service control signal tracking function implementation method according to an embodiment of the present invention, first receiving the subscriber service control signal tracking function registration request by the operator (201), The CTPM block 21 analyzes the accuracy and duplicate registration of the registration request parameter, which is an MMC instruction, in step 202 to provide the subscriber's implementation processor and line number as input parameters.

As a result of the analysis, when the input parameter is abnormal or when the subscriber is required to track the subscriber twice, the operator is notified of the error input through the input / output device (203).

As a result of the analysis, when the MMC instruction is normal, call tracking registration is requested to the CTPS block 13 of the corresponding ASP 10 (204).

Subsequently, the CTPS block 13 that receives the call registration registration request performs a processing procedure such as tracking registration in the database DB for processing subscriber communication (205), and returns the registration result to the CTPM block 21. Send (206)

Next, the CTPM block 21 outputs the result of the transmission to the operator input / output device (207), thereby terminating the subscriber service control signal tracking function registration procedure.

3 is a detailed flowchart of an exemplary embodiment of a method for implementing a subscriber service control signal tracking function according to the present invention. Execution of the tracking function starts from a digital subscriber circuit mode control (DCC) block 11 which is a call processing function. do.

As shown in Figure 3, the execution process of the subscriber service control signal tracking function implementation method according to an embodiment of the present invention, first, the DCC block 11 of the ASP (10) subscriber database in each tracking diagnostic interval; Access to analyze whether the tracking function registration (301). That is, whether or not to register the tracking function at each stage of subscriber-to-network signal processing, tone in the switching system, signaling device such as announcement, etc. during call processing to control subscriber communication, and at each stage of switch and channel control Analyze Here, the type of traceable diagnostic section includes a telephone line such as a switch, a call state on call processing of a terminal or an exchange system, signaling equipment such as various tones, and a protocol between the terminal and the exchange system.

If the tracking result is not registered, the call processing for the subscriber communication service is continued (302).

As a result of the analysis, when the tracking function is registered, when the exchange receives a service request control signal such as a service initiation request from the subscriber through the integrated information network terminal (303), the control signal (SETUP, CONNECT, The form and contents of the RELEASE, etc.) are checked (304).

As a result of the inspection, when the control signal received from the subscriber is not normal, it is an abnormal control signal, indicating that there is a problem in the control signal processing of the subscriber station terminal through the input / output device through the CTPS block 13 and the CTPM block 21. After notifying (305), the control signal tracking processing result of the subscriber service is notified to the CTPS block 13 of the ASP 10 in which the result of the call processing step is distributed in plural numbers (319). Therefore, the operator can investigate the control signal processing function of the subscriber station to deal with the failure.

As a result of the inspection, when the control signal received from the subscriber is normal, after the exchange notifies the subscriber through the input / output device through the CTPS block 13 and the CTPM block 21, the response control signal to the received control signal (306). The control signal tracking processing result of the subscriber service is notified to the CTPS block 13 of the ASP 10 in which the result of the call processing execution is distributed in plural numbers (319). In other words, the operator is notified that the subscriber is in the normal procedure and step of the exchange period with the subscriber of the control signal for the subscriber service.

As a result of the analysis, when the tracking function is registered, the exchange transmits a control signal indicating a service start request or the like to the subscriber to which the control signal tracking function is registered and should be received (307). After setting the response control signal wait timer to confirm (308), the control signal tracking processing result of such a service is notified to the CTPS block 13 of the ASP 10 in which the result of each step of performing call processing is distributed in plural numbers. (319).

In detail, the exchange transmits a control signal to the subscriber, and in order for the subscriber to succeed successfully, the exchange must receive a response control signal from the subscriber within a predetermined period in response to the control signal transmitted to the subscriber. In order to confirm whether a control signal is received, the timer is started by setting the response control signal waiting timer to a predetermined timer value, and the operator sets the timer through the input / output device through the CTPS block 13 and the CTPM block 21. Notify

As a result of the analysis, when the tracking function is registered, if there is no response from the terminal within a predetermined time for the control signal transmitted by the exchange according to the procedure of the control signal defined between the exchange and the subscriber (i.e., the response control signal wait timer elapses) (309), since the response control signal is not received from the terminal to provide the service to the subscriber, the CTPS block 13 and the CTPM block 21 indicate that there is a problem in the control signal processing of the subscriber terminal. After notifying the operator through the input / output device (310), the control signal tracking processing result of the subscriber service is notified to the CTPS block 13 of the ASP 10 in which a plurality of call processing step results are distributed (319). . That is, the operator is notified of the control signal processing function of the subscriber station so that the failure can be dealt with.

As a result of the analysis, when the tracking function is registered, upon receiving the request for the tone resource (311), it is checked whether there is a valid tone resource that can be provided by the exchange (312). That is, the exchange provides the subscriber with audible information such as a dial tone when the calling subscriber requests a service, a busy tone when the counterpart subscriber wants to communicate, and, in some cases, an announcement. To do this, the exchange checks whether there is a valid tone resource available or a hardware failure.

If the check result shows that there is no valid tone resource or there is a hardware failure, after notifying the operator through the I / O device via the CTPS block 13 and the CTPM block 21 (313), tracking control signals of such subscriber service The result of the processing is notified to the CTPS block 13 of the ASP 10 in which the results of the call processing steps are distributed in plural numbers (319). In other words, the operator is informed to take measures such as replacing hardware boards when tone resources are hardware failure, or adding tone resources based on statistical information when tone resources are depleted. do.

If the tone resource is valid or not in hardware, after the tone resource is notified to the tone resource subscriber (314), the control signal tracking processing result of the subscriber service is distributed to a plurality of step-by-step results. The CTPS block 13 of the ASP 10 is notified (319). That is, when the tone resource is valid, it is notified to the operator to inform that the flow of the control signal for the service of the subscriber is normally processed until the tone resource allocation step.

As a result of the analysis, when the tracking function is registered, the physical connection to the call must be made in order for the service of the corresponding subscriber to be available. When a request for the switch resource is received (315), the switch resource that the exchange can provide It is checked whether it is depleted or exhausted or physically broken down (316).

If the inspection result is that there is no valid switch resource or is physically broken, after notifying the operator through the input / output device through the CTPS block 13 and the CTPM block 21 (317), the control signal tracking processing of such subscriber service is performed. The result is notified to the CTPS block 13 of the ASP 10 in which the result of the call processing step is distributed in plural numbers (319). In other words, if there is no valid switch resource or if it is physically broken, it is notified by the operator to increase the switch resource based on statistical information when the resource is depleted, or to replace a spare hardware board in case of physical failure. Enable service by eliminating faults.

If the check result is normal (i.e., there is a valid switch resource or is not a physical failure), after notifying the switch resource subscriber of the switch resource (318), call processing of the control signal tracking processing result of such a subscriber service is performed. The result of the step-by-step is notified to the CTPS block 13 of the .ASP 10 distributed in plural numbers (319). In other words, when the switch resource is valid, the control signal tracking result for the service of the subscriber is notified to the operator that no failure occurs during the current switch resource allocation step.

Thereafter, when the step-by-step tracking result notified to the CTPS block 13 is received at the CTPM block 21 of the operation and maintenance processor 20 which centralized the operation maintenance function in the distributed control exchange system (320), the CTPM block 21 ), Whether the signal tracking result of subscriber service is progressing normally or abnormally, at what stage it is currently progressing, where is the obstacle section, what is the obstacle, or what kind of disability? The result is notified to the operator through the final input / output device (321).

4 is a detailed flowchart illustrating a cancellation process in a method for implementing a subscriber service control signal tracking function according to the present invention, which shows a reverse function of a registration process.

As shown in Figure 4, the cancellation process of the subscriber service control signal tracking function implementation method according to a preferred embodiment of the present invention, cancels when the operator first inputs the parameters input when registering through the input and output device using the MMC command CTPM block 21 mounted in the OMP 20 receiving the request checks whether the operator's input parameters are correct and analyzes whether to cancel the tracking function for the registered subscriber (401, 402).

As a result of the analysis, in the case of abnormal input parameters, an error notification is notified to the operator through the input / output device (403) to re-enter the MMC command.

As a result of the analysis, in the case of a normal input parameter, when the call tracking cancellation request is notified to the CTPS block 13 of the ASP 10 (404), the tracking registration of the subscriber communication service database stored in the registration request in the CTPS block 13 is registered. The data is deleted (405) and the cancellation completion notification is notified to the CTPM block 21 of the OMP 20 (406).

Thereafter, the CTPM block 21 receiving the cancellation completion notification from the CTPS block 13 notifies the operator of the final cancellation processing result of the tracking function for the subscriber through the operator input / output device (407).

As described above, the present invention is economical because there is no need to separately install and install expensive protocol analysis equipment for maintenance of subscriber communication service, and the operator inputs the subscriber through simple MMC command input using information related to the subscriber's shape. The flow of control signals for communication can be grasped at a glance, and when a failure occurs in the communication service, the location and cause information of the failure can be known so that the operator can quickly recover from the failure.

In particular, the present invention uses a software processing method in the exchange, such as the analog signal and the internal processing of the control signal, such as tone and switch, step-by-step processing of the control signal which may be a service failure of the digital subscriber that requires the exchange period signal protocol with the subscriber. By providing resources to the operator at the location of hardware and software failures, the cause of the failures, and the processing of the failed control signals, it is possible to recover more effectively and quickly when the subscriber service fails. That is, when a communication service failure such as a subscriber's communication failure, cross talk, communication disconnection, etc. occurs, it is possible to know which part of the failure is (probably a problem on the exchange side or a subscriber terminal). In addition, the present invention can be subdivided, and in the case of a problem on the terminal side of the subscriber, it is possible to know whether there is a problem in the signal protocol on the terminal side, a problem in the physical line, or a problem in the software function of the terminal.

In case of a problem on the exchange side, the present invention can be used to determine whether there is a problem in the signaling protocol, whether the tone resource on the exchange side is exhausted, whether the tone board is broken, not using all the switch resources, or if the switch hardware board is broken. By tracking the specific cause of the failure, such as showing the location and cause of the failure to the operator has an excellent effect to enable a quick recovery process.

Claims (7)

A method for implementing a subscriber service control signal tracking function applied to a distributed control switching system, wherein, when a request for registration of a subscriber service control signal tracking function is received, the service control signal tracking for each subscriber is investigated by examining the accuracy of a human-machine communication (MMC) command. Registering a function; When providing communication services to subscribers, such as voice communication, data communication and video conferencing, the step-by-step processing situation, tone of control signals, which may cause service failure in the exchange by the operator's human-machine communication (MMC) instruction. And a second step of notifying the operator in real time by location and step by step of the network resource inside the switch such as a switch to perform a service control signal tracking function for each subscriber. And a third step of canceling the service control signal tracking function for the corresponding subscriber with respect to the normal input parameter by checking the accuracy of the input parameter of the operator when the call tracking cancellation request is made. 2. The method of claim 1, wherein in the first step, when a subscriber service control signal tracking function registration request by an operator is received, a call tracking and routing maintenance (CTPM) block is registered as the human-machine communication (MMC) command. A fourth step of analyzing the accuracy and duplicate registration of the required parameters; A fifth step of notifying an operator of an error input through an input / output device if the input parameter is abnormal or if the tracking function of the corresponding subscriber is required twice; As a result of the analysis of step 4, if the input parameter is normal, call tracking registration is requested to a corresponding call tracking and routing (CTPS) block, and the call tracking and routing (CTPS) block is used to process subscriber communication. A sixth step of transmitting the registration result to a call tracking and routing maintenance (CTPM) block after performing a processing procedure such as tracking registration in the database DB; And a seventh step of transmitting the call tracking and routing maintenance (CTPM) block to an operator input / output device in an output form. The method of claim 2, wherein the registration request parameter of the fourth step is a subscriber processor and a line number of the subscriber. 4. The method according to any one of claims 1 to 3, wherein in the second step, the digital subscriber circuit mode control (DCC) block of the access exchange processor accesses the subscriber database in each tracking function diagnostic section to analyze whether the tracking function is registered. An eighth step; A ninth step of continuing the call processing for the subscriber communication service when the tracking function is not registered as a result of the analysis of the eighth step; When the tracking function is registered as a result of the analysis of the eighth step, the call tracking library for the modular tracking function is called to notify the call tracking and routing block of the result of the call processing step of the tracking function diagnosis section. Step 10; And the call tracking and routing block transmits a tracking result for each step of performing call processing to the call tracking and routing maintaining block, and the call tracking and routing maintaining block indicates that the signal tracking result of the subscriber service is normal or abnormal. The eleventh step of notifying the operator through the final input / output device by distinguishing whether it is progressing or at what stage it is currently progressing, where is the obstacle section, what is the obstacle, or what kind of disability? Subscriber service control signal tracking function implementation method comprising a. 5. The method of claim 4, wherein the tracking function diagnostic section is a call path, a call state on a call processing of a terminal or a switching system, a signaling device, and a protocol between the terminal and the switching system, respectively. . 5. The call tracking and path of claim 4, wherein the third step comprises receiving a cancellation request when an operator inputs a parameter input during registration through the input / output device using the human-machine communication (MMC) command. A twelfth step of analyzing, by the setting maintenance block, whether an operator's input parameter is correct; A thirteenth step of notifying an operator of an error notification through an input / output device when the analysis result of the twelfth step is a non-normal input parameter; As a result of the analysis of the twelfth step, in the case of the normal input parameter, the call tracking cancellation request is notified to the call tracking and routing block, and the tracking registration of the subscriber communication service database stored in the registration request in the call tracking and routing block is performed. Deleting data and notifying the call tracking and routing maintenance block of completion of cancellation; And a fifteenth step in which the call tracking and routing maintenance block notifies an operator of the final cancellation processing result of the tracing function for the corresponding subscriber through the operator input / output device. 7. The subscriber service control signal tracking function of claim 6, wherein the twelfth step further comprises a sixteenth step of analyzing whether the call tracking and routing maintenance block cancels a tracking function for a registered subscriber. How to implement.