JPH06113009A - Imtelligent network traffic restriction control method - Google Patents

Abstract

PURPOSE:To perform the connection control before an access is given to a serivce control node by deciding a fact that the calls requesting the intelligent network service are congested when a call is received at a switchboard of the outgoig side. CONSTITUTION:Congested telephone numbers, i.e., the calls requesting the intelligent network service are stored in a memory of an outgoing switchboard 102. Then a fact whether a congested state is confirmed or not is decided based on the memory when a call is received from an outgoing subscriber 101. If the congested state is confirmed, the connection of calls are controlled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intelligent network traffic regulation control method.

[0002] Here, the intelligent network is connected to an arbitrary exchange through a signal line, a calling exchange which accommodates a calling subscriber, a destination exchange which accommodates a receiving subscriber, a line connecting them. A service control node for providing an intelligent network service,
The calling exchange is a network configured to access the service control node when the calling subscriber requests the provision of the service. The intelligent network service includes toll-free (callee billing service) and There is a credit call (a service in which a person who charges a fee is charged regardless of which terminal the call is made from).

In such an intelligent network, the present invention regulates, when a call for an intelligent network service from a calling subscriber is congested, at the stage of accessing a service control node in the originating exchange, without access. The present invention relates to a regulation control method that makes it possible to do.

[0004]

2. Description of the Related Art FIG. 1 is a block diagram showing an intelligent network for explaining an embodiment of the present invention. However, since it is also a diagram useful for explaining the prior art, refer to FIG. The conventional technique will be described.

In the figure, 101 is an originating subscriber and 10
2 is the originating exchange, 103 is the receiving subscriber, 104 is the destination exchange, 105 is a transit exchange, and 106 and 107 are lines.
Reference numeral 08 is a service control node, and 109 is a signal line.

In FIG. 1, the telephone network is usually a calling exchange 102 accommodating a calling subscriber 101 and a called subscriber 103.
The receiving side exchange 104 that accommodates the exchanges, the relay exchange 105 that performs the relay connection for communication, and the line 1 that connects these exchanges
It is composed of 06 and 107 and provides general telephone service.

As a technique for easily providing a new service to this telephone network, there is an idea called an intelligent network as already mentioned. In the intelligent network, the service control function is not provided to each exchange 102, 104, 105, but
Each of the exchanges 102, 104 is provided to the service control node 108, and functions are added or changed to the service control node.
The new service is realized without modifying 105. The service control node 108 and the exchange are signal lines 109.
Tied by.

[0008] For example, when the called party billing service is provided by the intelligent network, it is as follows. For the called subscriber 103, a normal telephone number (hereinafter referred to as #A
Other than the above), an incoming number for intelligent network service (hereinafter referred to as #B) is given. (If the calling party dials #A, the call is not charged to the called party.
Only when #B is dialed, the called party is charged. )

When the calling subscriber 101 dials #B, the originating exchange 102 recognizes from #B that it is a called party charging service, and issues an instruction to the service control node 108. Each of the exchanges 102, 104 and 105 has an intelligent network service called number #B,
Since the subscriber position cannot be specified and the call cannot be connected, the telephone number of the incoming subscriber #B is # from the service control node 108.
The user is notified that he is A, and the call is connected to #A.

Even in the conventional telephone network, during congestion, congestion control is performed in order to prevent a decrease in throughput due to invalid processing in the network and pressure on traffic outside the cause of congestion. If the called subscriber or the entire called area is congested by the called exchange 104 due to overload, the called exchange 104
Detects congestion by the fact that the efficiency of the processor constituting the exchange, the number of call loss, etc. exceed a threshold value, and the originating exchange 102
Request the enforcement of connection regulation for congestion subscribers or congestion ground. If the called subscriber of #A is a congested subscriber or a subscriber in a congested area, the originating exchange 102 regulates a part or all of the calls to #A.

[0011]

However, in the prior art, a call in which a congestion subscriber or a subscriber in a congestion area is dialed with the intelligent network service number #B instead of the subscriber's telephone number #A. ,

(A) The call cannot be restricted before the originating exchange has access to the service control node.
(The more access you do, the more wasteful work you do.) (B) To detect congestion, enter # in the service control node.
It is necessary to have a counter for the number of calls lost in B, resulting in high cost.

(C) When the traffic of both the telephone number #A and the intelligent network service number #B is the result of congestion, it cannot be specified that the traffic of #B is one of the causes of congestion. There is a problem.

An object of the present invention is to solve the above problems of the prior art and to regulate the connection before access to the service control node without the need to provide a call loss counter in the service control node. It is an object of the present invention to provide an intelligent network traffic regulation control method that makes it possible to specify an intelligent network service number, activate regulation control, and enable this even in the case of (c).

[0015]

To achieve the above object, according to the present invention, a calling side exchange that accommodates a calling subscriber, a destination exchange that accommodates a called subscriber, a line connecting them, and an arbitrary exchange are provided. A service control node for providing an intelligent network service, which is connected via a signal line to the calling exchange, and the calling exchange accesses the service control node when the calling subscriber requests the provision of the service. In the intelligent network

A) When the calling subscriber dials a telephone number for requesting the provision of the service, the originating exchange that has received the call accesses the service control node and sends the telephone number to perform the required conversion. After processing, after receiving the converted telephone number that is the processing result as the actual destination telephone number, execute the connection procedure to the called side,

(B) When the destination exchange detects congestion at the destination subscriber or area for which connection is requested, the telephone number #A corresponding to the destination subscriber or area is notified to the originating exchange. ,

(C) When the originating exchange receives the telephone number #A, it notifies it to the service control node so that the service control node stores it in the storage means.

D) After that, the service control node, when accessed from the originating exchange, determines whether or not the same number as the telephone number after the conversion processing of the telephone number received from the originating exchange is stored in the storage means. If it is stored, it is notified to that effect to the originating exchange, and the originating exchange side stores the telephone number before conversion processing in the service control node in the storage means,

(E) After that, when the originating exchange receives a dial call from the calling subscriber for the telephone number for requesting the provision of the service, it checks whether or not the same number is stored in the storage means and stores it. If so, the outgoing call is immediately restricted for that number without accessing the service control node.

Alternatively, in the above-mentioned b), when congestion is detected in the destination subscriber or area for which a connection is requested in the destination exchange, the telephone number #A corresponding to the destination subscriber or area is used as the service control node. , And then the service control node that received the notification
The telephone number #A is stored in the storage means,

Thereafter, the service control node
When accessed from the originating exchange, the telephone number received from the originating exchange is checked to see if the same number as the telephone number after conversion processing is stored in the storage means. To the originating exchange, and the originating exchange stores the telephone number before conversion processing in the service control node in the storage means.

After that, when the originating exchange receives a dial call from the calling subscriber for the telephone number for requesting the provision of the service, it checks whether or not the same number is stored in the storage means, and when it is stored. Controls the outgoing call for the number immediately without accessing the service control node.

[0024]

According to the present invention, it is not necessary to provide a call loss counter in the service control node, and before the access to the service control node, the intelligent network service number which is the connection regulation target is specified and the regulation control is performed. It becomes possible to start.

[0025]

1 is a block diagram showing an intelligent network as an object for carrying out a regulation control method according to an embodiment of the present invention. The configuration of the figure has already been described.

FIG. 2 shows the originating exchange 102 in FIG.
FIG. 3 is a block diagram showing a configuration when the present invention is implemented. In FIG. 2, 101 is an outgoing subscriber, 201 is an incoming line, 202 is an outgoing line, 203 is a switch, 204 is a processor, 205 is a signal transmitting / receiving device, 206 is a memory, 2
Reference numeral 07 is a signal line. Please refer to FIG.

An incoming line (subscriber line) 201 accommodating the calling subscriber 101 and an outgoing line 202 (20) to the transit exchange.
1 of 2 corresponds to 106 of FIG. 1) are connected by a switch 203. The switch is controlled by the processor 204 to select a destination line.

There is a signal transmission / reception device 205 between the exchanges, and exchanges connection control information with other exchanges and service control nodes via the signal line 207 (one of which is 109 in FIG. 1). The originating exchange 102 has a memory 206 (the details of which are shown in FIG. 4) for storing a telephone number (hereinafter referred to as #A) corresponding to a congestion area and an intelligent network service number (hereinafter referred to as #B). However, if a communication request to the number registered in the memory is made via the incoming line 201, the communication request is discarded by the processor 204.

If there is an instruction from the service control node or another exchange (or a traffic control center (not shown)) that a connection to a certain number is not made, the memory 20
It is possible to write the number in No. 6 and, on the contrary, when there is a restriction release instruction for a certain number, the same number is cleared.

FIG. 3 shows the destination exchange 104 in FIG.
FIG. 3 is a block diagram showing a configuration when the present invention is implemented. In FIG. 3, 103 is an incoming subscriber, 301 is an incoming line, 302 is an outgoing line, 303 is a switch, 304 is a processor, 305 is a signal transmitting / receiving device, 306 is a memory, 3
Reference numeral 07 is a signal line and 308 is a counter. Please refer to FIG.

An incoming line (relay line) 301 (one of which is the line 107 in FIG. 1) and an outgoing line (subscriber line) 302 accommodating an incoming subscriber are connected by a switch 303, which is a processor 304. Is controlled to select the destination outgoing line. Signal line 3 in the exchange
07, the signal transmission / reception device 3 transmits connection control information to the outside.
Exchange via 05.

In the destination exchange 104, the processor 204 and the counter 308 are provided with the function of measuring the processor usage rate and the number of call losses due to busyness of each subscriber. A memory 306 (details thereof are shown in FIG. 5) stores threshold values for each measurement item, and when the measurement value exceeds the threshold value, it is determined as congestion and another exchange (or a traffic control center not shown) To notify.

FIG. 6 is an explanatory diagram showing the configuration of the counter 308 in FIG. 3, in which the telephone number (#A) of each subscriber.
Then, there is a call loss number i for the telephone number due to a busy subscriber, and the call loss number is updated every moment. (Here, the terminating exchange does not need to recognize whether the number dialed by the caller is #A or #B. In either case, the terminating exchange can only see it as a call arriving at #A. In addition, an area indicating whether or not #A is under regulation is also present in the memory forming the counter 308.

FIG. 7 is a block diagram showing the configuration of the service control node 108 when the present invention in FIG. 1 is implemented. In FIG. 7, 701 is a processor, 702 is a memory, 703 is a signal transmitting / receiving device, and 704 is a signal line. Please refer to FIG.

Signal line 704 (one of which is 109 in FIG. 1)
A service control request / instruction request to the exchange is sent to the processor 701 via the signal transmitting / receiving device 703. The processor 701 responds to the request by the data in the memory 702 and the program in the processor.

At this time, in the memory 702, as shown in FIG. 8, a memory 801 for making a comparison between the intelligent network service telephone number #B and the telephone number #A of the called subscriber who should receive by #B. , A memory 8 for storing the regulated called number notified from the originating exchange 102 (or a traffic control center (not shown)) via a signal line
02 exists.

The intelligent network congestion control method according to the present invention when the originating / terminating switch and the service control node are used will be described below with reference to the drawings.

(1) First, the processor usage rate measurement value by the processor 304 in the destination exchange 104 is stored in the memory 30.
Whether the processor usage threshold x in 6 is exceeded (condition),
When the measured value i of a subscriber (telephone number #A) among the measured number of call loss for each subscriber by the counter 308 exceeds the threshold value y in the memory 306 (condition), the condition is concerned. It is judged that the incoming exchange is congested, and the telephone number of the subscriber accommodating the incoming exchange (usually only the part of the station number, etc. is specified in the upper digits) is judged to be the congestion of the subscriber and the corresponding The calling party's telephone number is notified to the originating exchange.

The originating exchange 102 stores, in the memory 206, the notified telephone number #A (or a plurality of digits including #A or upper digits of #A). (Thus, when the outgoing line (relay line) 202 is captured, the processor 204 recognizes the connection regulation of #A by referring to the contents of the memory 206, and executes regulation control for regulating or blocking a certain number or more. .)

(2) In this state, the caller has the subscriber who has the telephone number #A by the intelligent network service number #B (if the number digit of the upper digit of #A is, the subscriber having the same content of the upper digit digit). Suppose that a connection request is made to (The terminating subscriber that should actually be connected is a congested subscriber or a congested area and should be barred. But at this point #
The originating exchange 104 does not recognize that B is subject to regulation. )

(3) The originating exchange 102 recognizes that #B is for intelligent network service, and accesses the service control node 108 via the signal line 109. The service control node can learn from the memory 801 in the memory 702 that the intelligent network service number #B is the telephone number #A and notifies the originating exchange 102 of it.

The originating exchange 102 is an outgoing line (relay line)
As a result of referring to the memory 206 at the time of capture, the processor 204 recognizes that it is a restriction target and activates restriction control.
If the call is lost due to regulation, the result is notified to the service control node 108, the service control node 108 recognizes that #A is subject to regulation, and stores #A in the memory 802.

(4) Consider a case where a certain caller dials the intelligent network service number #B. The originating exchange 102 accesses the service control node 108 via a signal line. The service control node 108 compares the memory 801 with #B being the telephone number #.
Recognize that it is A. At this time, the contents of the memory 802 are also referred to at the same time, and the service control node recognizes that it is #A. Therefore, the originating exchange 102 is instructed to perform service control node access control for #B.

(5) The exchange 102 on the calling side that received the instruction
Adds the regulation target number #B to the memory 206. When #B is dialed thereafter, by referring to this memory 206, it becomes subject to restriction before accessing the service control node 108. In the procedure of (1) above, (3) is not necessary if the same information is also notified to the service control node 108 when notifying the originating exchange of the restricted object #A.

In order to supplement the above description, the following items will be added individually. That is, the preconditions for implementing the present invention are as follows. (1) An intelligent network service is provided which has a calling side exchange that accommodates a calling subscriber and a destination exchange that accommodates a terminating subscriber, and a line connecting them. Is a communication network in which the service control node for is connected to the exchange through a signal line.

(2) The destination exchange can detect the congestion of the incoming subscriber and the congestion of the incoming area and notify the originating exchange of the telephone number (hereinafter, #A) corresponding to the subscriber or the area. (3) The originating exchange can regulate the connection to the telephone number (#A) based on the notified telephone number (#A).

(4) The service regulation node has a function of exchanging the telephone number of the intelligent network service to the telephone number of the actual destination. (5) When receiving the telephone number of the intelligent network service, the originating exchange accesses the service control node.

Based on the above, the contents of the present invention are as follows. (1) To the service control node Restricted telephone number (#A)
And the service control node has means for storing the telephone number.

(2) A telephone number (hereinafter referred to as #B) of an intelligent network service that is converted into a regulated telephone number (#A) is dialed, the calling exchange accesses the service regulation node, and #B to # At the time of conversion to A, the contents of the storage means assumed in (1) are referred to, it is determined whether or not there is a converted number (#A) in it, and if there is, the intelligent network service number before conversion. It has means for notifying (#B) to the originating exchange.

(3) The originating exchange stores the notified intelligent network service number (#B) and, according to the stored intelligent network service number, the service control node access regulation when the intelligent network service is requested. Has a means for performing.

[0051]

As described above, according to the present invention,
In an intelligent network, when an outgoing subscriber requests the provision of intelligent services,
When it is a congested and regulated call, the originating exchange is subject to connection regulation before access to the service control node without the need to provide a call loss counter in the service control node. Regulatory control can be activated by knowing that the number is for intelligent network services.

[Brief description of drawings]

FIG. 1 is a block diagram showing an intelligent network for explaining an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of the originating exchange 102 in FIG. 1 when the present invention is implemented.

FIG. 3 is a block diagram showing the configuration of the destination exchange 104 in FIG. 1 when the present invention is implemented.

FIG. 4 is an explanatory diagram showing details of a memory 206 in FIG.

5 is an explanatory diagram showing details of a memory 306 in FIG.

6 is an explanatory diagram showing details of a counter 308 in FIG.

7 is a block diagram showing a configuration of a service control node 108 in the case where the present invention in FIG. 1 is implemented.

8 is an explanatory diagram showing details of a memory 702 in FIG. 7. FIG.

[Explanation of symbols]

101 ... Originating subscriber, 102 ... Originating exchange, 103 ... Terminating subscriber, 104 ... Destination exchange, 105 ... Transit exchange,
106, 107 ... Line, 108 ... Service control node,
109 ... Signal line, 201, 301 ... Incoming line, 202, 3
02 ... outgoing line, 203, 303 ... switch, 204, 3
04,701 ... Processor, 205, 305, 703 ...
Signal transmitting / receiving device, 206, 306, 702 ... Memory, 2
07, 307, 704 ... Signal line

Claims (2)

[Claims] 1. An intelligent network service providing system connected to a calling exchange which accommodates a calling subscriber, a receiving exchange which accommodates a terminating subscriber, a line connecting them, and an arbitrary exchange via a signal line. And a service control node for transmitting the service from the calling subscriber in an intelligent network that allows the originating exchange to access the service control node when the calling subscriber requests the provision of the service. When the call to be sought is congested, it is a regulation control method for regulating this without access at the stage of accessing the service control node in the originating exchange, and (a) the calling subscriber requests the provision of the service. When you dial the telephone number, the originating exchange that receives this will
Accessing the service control node, sending the telephone number, performing the required conversion processing, receiving the converted telephone number as the processing result as the actual destination telephone number, and then connecting to the receiving side (B) When the congestion is detected for the called subscriber or area for which a connection is requested at the destination exchange, the calling side uses the telephone number #A corresponding to the called subscriber or area. A second step of notifying the exchange, and (c) a third step in which the originating exchange notifies the service control node of the received telephone number #A and the service control node stores it in the storage means. After that, when the service control node is accessed from the originating exchange, the service control node stores in the storage means the same number as the telephone number obtained by converting the telephone number received from the originating exchange. Checks whether it has, when stored, and notifies the originating switch, the originating exchange side,
A fourth step of storing the telephone number before conversion processing in the service control node in the storage means, and (e) after that, when the originating exchange receives a dial call of the telephone number requesting the provision of the service from the calling subscriber. ,
It is checked whether or not the same number is stored in the storage means, and if so, the fifth step of immediately restricting the outgoing call for that number without accessing the service control node. And an intelligent network traffic regulation control method, characterized in that the fifth step is maintained thereafter. 2. A calling side exchange that accommodates a calling subscriber, a destination exchange that accommodates a terminating subscriber, a line connecting them, and an intelligent network service provision connected to an arbitrary exchange via a signal line. And a service control node for transmitting the service from the calling subscriber in an intelligent network that allows the originating exchange to access the service control node when the calling subscriber requests the provision of the service. When the call to be sought is congested, it is a regulation control method for regulating this without access at the stage of accessing the service control node in the originating exchange, and (a) the calling subscriber requests the provision of the service. When you dial the telephone number, the originating exchange that receives this will
Accessing the service control node, sending the telephone number, performing the required conversion processing, receiving the converted telephone number as the processing result as the actual destination telephone number, and then connecting to the receiving side (B) When the congestion is detected for the called subscriber or area for which a connection is requested at the destination exchange, the service control is performed on the telephone number #A corresponding to the called subscriber or area. A second step of notifying the node, and c) a third step in which the notified service control node stores this telephone number #A in the storage means, and d) after that, the service control node is the originating side. When accessed from the exchange, check whether the same number as the telephone number after conversion processing of the telephone number received from the originating exchange is stored in the storage means, and if it is stored , Notifies the originating exchange, the originating exchange side,
The fourth step of storing the telephone number before conversion processing in the service control node in the storage means, and (e) when the originating exchange receives a dialing call of the telephone number for requesting the provision of the service from the calling subscriber. ,
It is checked whether or not the same number is stored in the storage means, and if it is stored, the fifth step of immediately controlling the outgoing call for the number without accessing the service control node. An intelligent network traffic regulation control method comprising the steps of: and maintaining the fifth step thereafter.