KR950013156B1 - Selective traffic control method of full electronic exchanger - Google Patents

Abstract

in case of receiving a selective traffic congestion control demand signal from an operator, requesting the control of a code to cause the congestion by receiving traffic congestion information; changing the traffic congestion control information by receiving a code control traffic information; outputting data by forming the control result and the traffic information in order for the operator to read them easily; requesting a stop of a congestion information transmission by inputting the selective traffic congestion control release demand signal from the operator; completing the traffic congestion control release demand after transferring a message to an output unit; and in case of receiving information like input, change, and output of the traffic congestion control information from the operator, checking their accuracy to thereby complete a change in the traffic information.

Description

Selective Call Congestion Control Method in Electronic Switching System

1 is a structural diagram of an electron exchanger to which the present invention is applied.

2 is a connection diagram of a processor in an electronic switch according to the present invention.

3 is an overall processing flow diagram in accordance with the present invention.

* Explanation of symbols for main parts of the drawings

100: ASS (Access Switching Subsystem)

200: INS (Interconnection Network Subsystem)

300: Central Control Subsystem (CCS)

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traffic volume congestion control method in an electronic switchgear, and more particularly, to a selective traffic volume control method for a specific region such as a disaster occurrence area.

In recent years, the introduction of large-capacity digital transmission systems and switching systems and the adoption of common line signaling methods have resulted in more connections and interactions between communication networks. As a result, the possibility of a switch or network failure increases when the communication network is congested and the traffic volume is escalated to the exchange system.

In addition, as the demand for communication increases rapidly, various resources and services of the new network may easily change the pattern of the call volume or cause unexpected network problems.

In the conventional electronic switchboard, if an overload phenomenon occurs due to natural disasters, a defective state of equipment, and a congestion of traffic generated on holidays without any management, overload phenomenon occurs continuously and adversely affects not only the corresponding switch but also the adjacent network. It has affected a lot. In order to maximize the use of large and complex exchanges and evolving communication networks, and to manage the operation more efficiently, this electronic switch automatically detects incoming codes that are the direct cause of overload generator overload. There is a need for a method of controlling call volume.

Accordingly, an object of the present invention is to detect a call detected by analyzing and analyzing traffic in an internal function of an exchange automatically when a call is concentrated to a specific region or a specific subscriber such as a disaster occurrence area and an overload of the exchange and a communication network occurs. In other words, a call code (region or subscriber) for which the requested call is not successfully called is a low completion rate code that has a decisive effect on the traffic congestion of the network. The purpose is to control the traffic congestion control method to prevent the spread. In order to achieve the above object, the present invention provides a central control subsystem (CCS) 300 having an input / output processor (MMP) and an operation maintenance processor (OMP), an internal connection network subsystem (INS 200), and a connection switching sub. In the selective call congestion control method applied to an electronic switch having a system (ASS; 100), when the selector call amount congestion control request signal is received from the operator receives the call amount congestion information to control the code that causes the congestion After receiving the request, the first step of requesting to change the traffic volume congestion control information by receiving the code control traffic information and outputting the standardized data so that the operator can easily read the control result and the traffic volume information, and selective traffic volume congestion from the operator When the control release request signal is received, a request for discontinuation of the congestion information transmission is requested, and a message is sent to the output device. After requesting, the second step of completing and ending the call burst control cancellation request, and receiving information such as input, change, and output of the call burst control information from the operator, verify the accuracy and complete the request processing of the call volume information change. It is characterized by performing with a third step to end after.

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

1 is a block diagram of an electronic switching system configured to provide a method for selectively controlling the amount of traffic congestion of the electronic switching system.

The electronic switch is composed of three subsystems: an Access Switching Subsystem (ASS) 100, an Interconnection Subsystem (INS) 200, and a Central Control Subsystem (CCS) 300.

The ASS 100 manages subscribers of the exchange, performs a plurality of distributed call processing functions, and the INS 200 centralizes the number translation and routing functions for call connection with other exchanges, and performs CCS. In (30), the system manages and manages the main functions of the system.

In order to perform the selective call burst control function of the electronic switchboard, the CCS 300 includes an NMS, which is a software subsystem responsible for the selective call burst control function. NMS (Network Management Subsystem) is composed of four software blocks (RCI, CCI, NMI, NPS) having a shared function to perform a network management function. In the figure, MMS represents a machine machine subsystem, SMS represents a system maintenance subsystem, MSS represents a measurement and statistics subsystem, and NTS represents a number translation subsystem software block.

The NMI (Network Management Interface) receives a request to limit the congestion control of the call volume by the user's control request, and the command inputted as a block that controls the interface between the MMI (Man Machine Interface) and the NMS, which is an operator matching function. Performs output to the output device by formatting messages for analysis and processed results.

Route Control Interface (RCI) performs manual route control and automatic control of network management functions. The Code Control Interface (CCI) manages low completion rate codes required for selective traffic congestion control, and performs incoming code manual and automatic control. Network Performance Supervision (NPS) detects a low completion rate code required for selective traffic congestion control and performs a function that can be used to control exchange traffic congestion.

MMS (Man Machine Subsystem) is a sub system that provides an interface between the operator and the exchange period, and performs the function of outputting message format for the command input by the operator and outputting system messages to the operator terminal. Measurement Statistice Subsystem (MSS) is a service system that measures, analyzes, collects, and manages traffic information of various systems. System Maintenence Subsystem (SMS) is a subsystem that determines and controls traffic congestion of the exchange. Call Handling The NHS (Number Handling Subsystem) subsystem, which performs the required number translation and trunk line control, places restrictions on the terminating code for the actual call.

2 is a structural diagram of hardware required for the electronic switching system to perform the selective traffic congestion control function.

NMS, which is responsible for selective traffic congestion control, maintains functions such as system maintenance, test management, network management, billing, traffic measurement, MMS is a software subsystem that manages the input and output of the operator. It is located in the Operations and Maintenance Processor (OMP), which is an operation and maintenance processor installed in the CCS 300. (Man Machine Subsystem) is an input / output processor and is similarly mounted in a Man-Machine Processor (MMP) installed in the CCS 300. NHS (Number Handling Subsystem) which can check the function related to number translation of call is number translation processor and is located in NIP (Number Translstion Processor) installed in INS 200.

The NMI block receives the selective call congestion control processing request from the operator, verifies the contents of the instruction, and makes a processing request with the CCI block. The CCI requires NPS to measure and analyze the low completion rate codes and traffic congestion status information. The NPS then asks the SMS for the traffic congestion status information of the exchange, and the SMS notifies the NPS of the result.

NPS informs CCI of low completion rate codes and traffic congestion at the exchange. The CCI requires the NDH to control the low completion rate code according to the degree of congestion of the traffic and enforces the restriction, thereby alleviating the congestion of the exchange. CCI also performs functions such as traffic congestion level, low completion code verification, information change, registration, and information output.

3 is a flowchart illustrating a process of selectively controlling the traffic volume congestion for a low completion rate incoming code that causes an overload when an overload occurs in an electronic switch.

Selective call burst control starts when the operator performs the above function (1). When the operator requests a selective call volume control request (2), it is determined whether the code control function is currently performing the low completion required for the traffic volume control (3) and registers a low completion rate code control function if the function is not still being executed. (4) to selectively limit the amount of money.

Subsequently, a function of managing the traffic volume congestion status information is requested (5), and the result is waited for (6). When the traffic congestion information is received (7), the current traffic volume congestion status is determined, and if the traffic volume is congested to the extent that the restriction of the traffic volume is necessary (8), the caller may apply the call restriction to the code indicating the low completion rate for the restriction of the traffic volume. The code control function requires the restriction of the code that causes the traffic congestion to be applied (9).

If the exchange volume state of the exchange is normal, the flow returns to step 5 after 5 minutes. Continuously observing the traffic volume congestion state of the exchange, the traffic volume information, which is a limited result of selective incoming code control, is analyzed again, and the state transitions to the reception state of the traffic volume traffic information to readjust the limit rate and restriction code (10). When the code control traffic information is received (11), the traffic information is analyzed and verified to change the traffic congestion control information (12), and the control result and the call volume information are scored to be easy for the operator to read and to request the output to the output device. After (13), it waits for 5 minutes and returns to the step (5) again.

Upon receiving a request to terminate selective bursting control of a call from the operator (14), stop the low completion rate code control function that substantially limits the amount of call (15), request to stop the sending of the bursting information (16), and then return the result. In response to the transition to the state of waiting to receive response information (17). Upon receipt of the request to stop the congestion information transmission (18), after arranging the result message of the execution of the requested instruction (19), requesting to send a message requesting the output of the result message to the output device (20), and canceling the traffic volume congestion control The request is completed (21) and ends (22).

When receiving information such as input, change, or output of control information of the traffic congestion control from the operator (23), it is verified whether the request for information change or the like is correct (24). If the request is normal (26), the traffic volume control information is changed (26), and the output of the command execution result message is requested (27). If the request is not normal, the output of the message for error information of the command request is requested. (29). Subsequently, after completing the request processing for changing the call amount information (28), the processing for the instruction is terminated (30).

Therefore, the present invention carried out by the above processing procedure is a low completion rate code, that is, the call is not connected to the call by the user at the time of disaster issuance of the electronic switchboard exchange, equipment failure, congestion of the call volume due to the holiday, the call is continuously connected It is a method of detecting a call that repeats a connection request and restricting the related called code or called party number.It automatically detects the congestion of the call concentrated in a specific area or a specific subscriber group and sends outgoing call to the called code. By limiting the number of traffic jams, the network-wide prevents the spread of overload and provides more efficient service to multiple subscribers. Furthermore, the congestion information of all electronic exchanges developed based on domestic technology and experience is classified by the degree of congestion. To inform them of the congestion D) Switching linkage control to mitigate congestion by controlling the traffic of incoming code connected to the corresponding exchange and transmission of network status information and network performance information from the centralized network management center to control efficient network traffic at the whole network. It is easy to implement the linkage control function to transmit the corresponding information and receive and process the network management control command, and it is effective to quickly process various newly requested services.

Claims (4)

A central control subsystem (CCS) 300 having an input / output processor (MMP) and an operation maintenance processor (OMP), an internal network subsystem (INS) 200, and a connection exchange subsystem (ASS; 100). In the selective traffic congestion control method applied to an electronic switch, when the selector's call congestion control request signal is received from the operator, the call congestion information is received, and after requesting control of the code that causes the congestion, the code control traffic information The first step (1 to 13) requesting to change the traffic volume congestion control information by outputting the control signal and to output the data that has been formatted so that the operator can easily read the control result and the traffic volume information; Receives a request to stop the congestion information transmission, and sends a message requesting the output message to the output device, and then controls the congestion The second step (14 to 22) of completing and ending the request, and receiving information such as input, change, and output of the traffic congestion control information from the operator, verify the accuracy and then complete the request processing of the change of the traffic volume information. Selective traffic volume congestion control method characterized in that it comprises a third step (23 to 30) to perform. 2. The method of claim 1, wherein the first steps (1 to 13), when receiving a call congestion control processing request from the operator, handles the low completion rate code control function registration for the call congestion control and manages the call congestion status information Requesting and waiting for the transmission of the congestion information (1 to 6), and after performing the steps (1 to 6), if the traffic volume congestion information is not determined to be necessary to limit the amount of the call, the step (1). To step 6), requesting the code control function to limit the code causing the congestion of the call in order to limit the call from the calling party to the code indicating the low completion rate if the congestion condition is necessary. 9), and after performing the steps (7 to 9), the traffic volume information is received to re-analyze the traffic volume information to readjust the rate limit and the restriction code. When waiting and receiving the code control traffic information, the traffic information is analyzed and detected to change the traffic volume congestion control information, request to output the control result and the traffic volume information, and return to the steps 1 to 6 (9 to 6). 13) a selective traffic volume congestion control method characterized in that it is carried out. 2. The method of claim 1, wherein the second steps (14 to 22) stop (14, 15) the completion rate code control function that substantially limits the amount of call upon receiving a request for selective call runaway control termination from the operator. And after performing steps 14 and 15, requesting to stop the transmission of the congestion information and waiting for the result and waiting for the result, and after performing the steps 16 and 17, requesting to stop the congestion information transmission. Selective traffic congestion control method characterized in that it comprises the steps of (18 to 22) to request the output of the result message and terminate after the result of the execution result message. The method of claim 1, wherein the third step (23 to 30) is a step of verifying the accuracy of the received information (23 to 25) when receiving information such as input, change, output of the traffic congestion control information from the operator And, as a result of the verification of the steps 23 to 25, if the normal request, change the traffic volume congestion control information, request the output of the command execution result message, and requesting the output of the message for error information if not normal request ( 26, 27 and 29, and after the steps 26, 27 and 29 are completed, steps 28 and 30 of terminating the processing of the command after completing the request processing of the change in the call volume information are performed. Selective traffic congestion control method.