JPH055423B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a basic service protection control method for an electronic switching device using a storage program control method. In particular, the present invention relates to a basic service protection control method for protecting basic services for priority control subscribers and providing equal basic services to non-priority control subscribers when abnormal congestion occurs.

〔overview〕

The present invention provides a storage program control method that provides basic services to priority control subscribers and regulates non-priority control subscribers according to the degree of abnormal congestion when abnormal congestion occurs. In the basic service protection control method for electronic switching equipment, non-priority control is achieved by circulating and regulating predetermined time for each physically divided unit according to the degree of congestion for non-priority control subscribers. It is designed to provide equal regulatory control to subscribers and provide fair protection of basic services.

[Conventional technology]

Conventionally, the basic service protection control method when abnormal congestion occurs in telephone exchange equipment is defined as an overload control method, which is divided into specific physical units and given priority and non-priority, and is used to detect abnormal congestion. At the same time, regulation is implemented for each specific unit depending on the degree of abnormal congestion. In addition, the basic service protection control method for electronic switching equipment using the stored program control method is based on the storage device in the central control unit, which gives priority and non-priority rights to subscribers based on specific accommodation conditions, regardless of the physical unit. In the event of abnormal congestion, information for identifying the subscriber is stored, and processing is performed for specific subscribers stored as having priority rights, while processing is performed for regular subscribers stored as having priority rights. is a control method that does not perform normal processing in specific units depending on the degree of abnormal congestion, and protection of basic services is limited to specific subscribers.

[Problem that the invention seeks to solve]

However, with such conventional overload control methods for electronic switching equipment, protection of basic services is limited to specific units that are physically separated and subject to regulation.
There was a drawback that it could not be implemented while the abnormal congestion state continued. In this case, a voice notification to that effect was given to subscribers within the specified unit subject to regulation via the communication line equipment instructed by the central control unit.

In addition, in protecting the basic services of electronic switching equipment using the storage program control method, no particular physical conditions are set for the regulation unit, and non-priority control subscribers stored in the storage device are subject to random regulation. Basic services were provided to subscribers who were not subject to regulation by chance, but there was a drawback in that basic services were not protected for subscribers who were subject to regulation. Also,
In this case, since the restriction state was not directly notified to the communication path equipment, the central control unit needed to perform part of the processing based on input (calling).
There was a drawback that voice notifications could not be sent to regulated subscribers.

The present invention solves the above-mentioned drawbacks, and when abnormal congestion occurs, provides basic services to priority control subscribers, and equally regulates and fairly controls non-priority control subscribers. The purpose is to provide a basic service protection control method for providing basic services.

[Means for solving problems]

The present invention provides basic services to priority control subscribers when an abnormal congestion state occurs,
In a basic service protection control method for an electronic switching system in which non-priority control subscribers are regulated according to the degree of abnormal congestion, several stages are predetermined in accordance with the degree of abnormal congestion. When an abnormal congestion state occurs, the above-mentioned regulation stage is selected according to the degree, the non-priority control subscribers are divided into groups based on the regulation stage, and the non-priority control subscriber group is sequentially circulated. The feature is that the regulation is carried out within a predetermined regulation time.

[Effect]

In the present invention, several stages of regulation are physically determined in advance according to the degree of the abnormal congestion state, and
When abnormal congestion occurs, the above-mentioned regulation stage is selected depending on the degree of abnormal congestion, and based on the regulation stage, non-priority control subscribers are restricted in equal order within a predetermined regulation time, thereby providing non-priority control. Regulatory control can be applied equally to subscribers and protection of basic services can be provided fairly.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of a basic service protection and control device according to an embodiment of the present invention. In Figure 1,
When an abnormal congestion state occurs, the abnormal congestion state is detected by the abnormal congestion monitoring unit 11.

Here, the feature of the present invention is the regulation stage control portion surrounded by a dashed line. That is, the abnormal congestion monitoring unit 11 connects the regulation level according to the degree of congestion to the regulation control unit 12 . This typically results in 25%, 50%, and 75% of the non-priority control subscriber group.
One of the four stages of % and 100% is notified. The regulation control unit 12 determines the regulation category based on the notified stage and sets a predetermined regulation implementation time (the minimum time required to detect a change in the congestion state).
Restrictions are carried out sequentially within the limits, and only during a predetermined time period during which no restrictions are imposed, processing is performed to protect the basic service. Further, a control signal is connected from the regulation control section 12 to the communication path system device 20. In the communication path system device 20, the non-priority control subscriber group accommodated by the communication path storage circuit 21 is sequentially cyclically regulated within the above-mentioned predetermined regulation time based on the above-mentioned regulation classification, and the predetermined unregulated subscriber group is We will protect basic services only for a limited time. Also, voice notifications are given to restricted subscriber groups. Furthermore, basic services are provided preferentially to the priority control subscribers stored in the communication path storage circuit 21.

When the regulation stage from the maintenance control device 30 is connected to the maintenance control monitoring section 13, the maintenance control monitoring section 1
The output of No. 3 is connected to the regulation control section 12, and the regulation control section 12 performs regulation by circulating at specified regulation implementation time intervals according to the regulation stage from the maintenance control device 30, regardless of the congestion state. Similarly to the above, a control signal is connected from the regulation control unit 12 to the communication path system device 20, and basic service protection processing is implemented for the subscriber.

The operation of the basic service protection control device having such a configuration will be explained. In FIG. 1, when the abnormal congestion monitoring unit 11 detects an abnormal congestion state, the regulation control unit 12 is notified of the degree of the congestion state. This is usually divided into four regulatory levels (25
%, 50%, 75%, 100%), the basic service protection control of the present invention is implemented in the regulations in the first to third stages. The regulation control unit 12 performs processing for protecting the basic service for a predetermined time within a predetermined regulation control time (the minimum time required to detect a change in the congestion state). The subscriber group accommodated in the communication path system device 20 is similarly divided into four categories, and the amount of restriction corresponding to the degree of restriction commanded by the restriction control section 12 is performed.

FIG. 2 is a diagram showing a method of regulating the basic service protection control device of the present invention. In FIG. 2, the shaded area indicates the restricted area. When the regulation control unit 12 activates the first stage (25%) regulation, it carries out the regulation process for the first category of subscribers accommodated in the communication path equipment 20 for a predetermined period of time, and After this period, the system will move to the second category, and basic services will be protected for subscribers in the first category. This operation is performed cyclically. The regulation implementation time t is optimized and determined based on the congestion state change detection time T and the degree of the congestion state. That is, the first
For staged regulations (25%), the regulation implementation time t is optimized so that t≦T/4. Furthermore, when the maintenance monitoring section 13 of the central control device 10 recognizes the regulation stage input from the maintenance control device 30, the regulation control unit 12 immediately changes the regulation stage according to the command, regardless of the congestion state. Communication path system device 20
The regulation processing can be carried out fairly at intervals of the specified regulation implementation time t'. Furthermore, a voice notification is made by the communication path system device 20 to a group of subscribers accommodated in the restricted communication path system device 20.

As explained above, the present invention enables fair basic service protection to non-priority control subscribers. However, even under these regulations, the communication path storage circuit 21 built in the communication path system device 20,
For subscribers who are stored in advance as subscribers with priority rights, the communication path system device 20 recognizes inputs (calls) from these subscribers and provides basic services preferentially. There is.

FIG. 3 is a flowchart of the abnormal congestion monitoring section of the basic service protection control device of the present invention. In FIG. 3, the state of congestion is determined, and when the state is congested, the regulation stage is determined according to the state and notified to the regulation control unit 12, and when the state is not congested, monitoring is continued.

FIG. 4 is a flowchart of the maintenance control device for the basic service protection control device of the present invention. In FIG. 4, the maintenance regulation state is read out, and if there is a regulation, the regulation stage is determined based on the command and notified to the regulation control section 12, and if there is no regulation, reading is continued.

FIG. 5 is a flowchart of the regulation control section of the basic service protection control device of the present invention. In FIG. 5, the abnormal congestion monitoring unit 11 or the maintenance control device 3
Enter the regulation stage from 0. In this case, priority is given to the regulation stage from the maintenance control device 30. If regulation control is in progress, when the regulation enforcement time has elapsed, a new regulation classification and optimal regulation enforcement time are determined according to the regulation stage, the new regulation classification is notified to the communication path equipment 20, and the old regulation classification is changed. Notify of cancellation. If the regulation enforcement time has not elapsed, the next regulation stage is input to determine whether regulation control is in progress.

If regulation control is not in progress, the regulation classification and optimal regulation implementation time are determined according to the regulation stage, and the communication path system device 20 is notified.

〔Effect of the invention〕

As explained above, the present invention implements fair regulation processing in abnormal congestion conditions by combining the regulation control unit built into the central control unit of the electronic switching equipment of the storage program control type and the communication path system device. death,
This has the excellent effect of providing basic services equally. Furthermore, there is an advantage that a voice notification can be simultaneously issued to a restricted subscriber from the communication path device at the same time as a command for restriction processing. Furthermore, since calls from regulated subscribers are suppressed within the communication path system equipment, the load on the central control unit, which is in a congested state, will not be increased beyond its current state, and this has the effect of gradually recovering the congested state.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a basic service protection and control device according to an embodiment of the present invention. FIG. 2 is a diagram showing a method for regulating the basic service protection control device of the present invention. FIG. 3 is a flowchart of the abnormal congestion monitoring unit of the basic service protection control device of the present invention. FIG. 4 is a flowchart of the maintenance control monitoring section of the basic service protection control device of the present invention. FIG. 5 is a flowchart of the regulation control section of the basic service protection control device of the present invention. 10... Central control device, 11... Abnormal congestion monitoring section, 12... Regulation control section, 13... Maintenance control monitoring section, 20... Communication path system device, 21... Communication path system storage circuit, 30... Maintenance control equipment.

Claims (1)

[Claims] 1. When an abnormal congestion state occurs, basic services are provided to priority control subscribers, and restrictions are applied to non-priority control subscribers according to the degree of abnormal congestion. In the basic service protection control method for electronic switching systems, several stages of regulation are determined in advance according to the degree of abnormal congestion, and when abnormal congestion occurs, the above regulation stages are selected according to the degree. , Basic service protection control characterized in that the above-mentioned non-priority control subscribers are divided into groups based on the stipulation stage, and the non-priority control subscriber group is sequentially circulated and regulation is performed within a predetermined regulation time. Method.