JPH08204825A - Service competition control system for intelligent network - Google Patents

Abstract

PURPOSE: To prevent the generation of competition between the service on a control node and the service in a switchboard by managing service in the switchboard and the control node based on the same service competition control managing table. CONSTITUTION: A communication network is provided with a service control point(SCP) 1, a switchboard 5 connected to the SCP 1 through a data ring 4 and a service management system(SMS) 3. Start priority is applied to a service started in each event of the switchboard 5, the priority is set up in a service competition control managing table and the table is stored in both the switchboard 5 and the control node as a common table. When a service with the highest start priority is the service to be executed in accordance with a call processing program for its own switchboard 5, the service is executed in the switchboard 5, and when the service with the highest start priority is a service to be executed under the management of the control node, the service can be attained in accordance with an instruction from the control node.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a contention control system in an intelligent network, and more particularly to a system for controlling contention between a service in an intelligent network and a service provided by an exchange.

[0002]

2. Description of the Related Art A conventional service contention control method in an intelligent network is for controlling service contention at a service control point (hereinafter referred to as SCP) or an adjunct in the intelligent network. As one example, Japanese Patent Laid-Open No. Hei 2
-51958, "Communication network service conflict checking method". In this system, one call uses a plurality of nodes, and one node receives additional service at one node, for example, a first switching node, and another node receives additional service at another node, for example, a second switching node. Conflict check method in case of conflict.

In this system, the SCP has a service analysis table, an NCR (network call number) availability block, a service control table, and an additional service contention condition table. When a supplementary service occurs, the SCP looks up the service analysis table by the service request number sent from the first switching node and determines the service type. Next, NCR
The empty block table is searched to capture the empty NCR as the NCR for the call. The SCP further indexes the service control table by the NCR, and sets the service type as a service usage state at a position corresponding to the NCR on the service control table. This service usage information is retained in the service control table until the call is disconnected. Also, after the NCR is captured, it is added to the call control signal at the switching node and taken over between the switching nodes.

When a new supplementary service accompanies the call is generated via the second switching node, the inherited NCR is notified to the SCP. SCP is notified N
The CR reads the service usage status of the call from the service control table and refers to the supplementary service contention condition table to perform a contention check on the service type read as the service usage status and the new supplementary service type. , Accept or deny new supplementary services generated via the second switching node.

[0005]

The service contention control method in the intelligent network described above performs the contention control between the services in the SCP or the adjunct (services realized under the control of the SCP or adjunct) in the intelligent network. Therefore, when a new service is added to the exchange itself, there is a problem that it is not possible to control the competition with the service realized by the intelligent network.

The present invention has been made to solve such a problem, and is directed to an intelligent network capable of controlling the competition between a service realized under the control of SCP or an adjunct and a service realized inside an exchange. The purpose is to provide a service competition control method.

[0007]

According to the service competition control method in an intelligent network of the present invention, a control node is installed in a communication network, and data for controlling various services and a control program are stored in this control node. , The control node transmits an instruction for realizing a desired service to the exchange through a data line, and the exchange responds to the instruction to provide a call connection service to a communication network by a service contention control method in an intelligent network. The first service is a service provided by the exchange in the exchange according to the call processing program of the exchange itself, and the exchange is instructed by the control node under the control of the control node. The service realized according to the above is the second service, and for each event that occurs in the exchange. A table for service conflict control management in which identification information of a service activated by the event, activation priority of the service, and whether the service is the first service or the second service is set. The service competition control management table is prepared and stored in the exchange and the control node as a table common to the exchange and the control node, and when an event occurs in the switch, the exchange receives the service competition control management table at the event. And the service with the highest activation priority for the event belongs to the first service, the exchange realizes the service inside the exchange and the service with the highest activation priority for the event. Switch belongs to the second service, the exchange is Both sending the instructions to the information including the identification information and the event name and the attribute of the service parameters, the service control node for controlling the switch in a known manner on the basis of the instruction,

[0008]

As described above, since the exchange and the control node manage the service by the same service competition control management table, the competition between the service realized by the control node and the service realized inside the switch is prevented. can do.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing the configuration of the essential parts of an example of a communication network for implementing the method of the present invention. The communication network of FIG. 1 includes a service control point (hereinafter referred to as SCP) 1, a switch 5 connected to the SCP 1 through a data link 4, and a service management system (hereinafter referred to as SMS) 3
It has. The SCP includes data for controlling various services and a control program, and sends a command to the exchange 5 via the data link 4 based on the data according to the control program to control the call connection operation, thereby providing a communication service. provide. In addition, in this configuration example, the SMS3
Is connected to SCP1 via data link 2 and manages communication services.

Next, an embodiment of the system of the present invention will be described with reference to the communication network shown in FIG. First, the call processing program of the exchange 5 refers to the internal table of the exchange 5 at every break of the call processing process such as completion of dial digit reception. Here, the break in the call processing process means a transition of the state of the exchange caused by the call processing of the exchange.

[0011]

[Table 1] Table 1 is an example of this internal table, which is a matrix of service identification numbers (hereinafter referred to as service IDs) and events, and each service ID is SCP1 and exchange 5
It corresponds to each of the services realized in. Further, the event corresponds to a new state in which the exchange has transitioned at the break of the call processing process referred to by the exchange 5. When there is a target service that can be activated by the same event, the service is activated according to the designation in the table in Table 1. In Table 1, as a service that is activated when the called party is in a call, that is, a service that is activated by the event of "calling the called party", a call transfer service realized by the intelligent network (the service ID is 1). .) And call waiting (service ID is 2) realized by the exchange, which cannot be realized at the same time. In this case, service contention control is performed as follows, for example. When a callee encounters an event during a call, the call processing program of the exchange 5 refers to the event during the call in the table of Table 1 and preferentially activates the service of a predetermined number. In the present embodiment, it is determined that the service in which the matrix element is 1 (the service having the service ID = 1) is prioritized, so that the exchange 5 causes the event such as the event name of “callee call” and dial number Instructions with parameters such as attribute information and information such as service ID set in the internal table are sent to the SCP 1 via the data link 4. In this embodiment, as described above, the service having the service ID = 1 is the call transfer service realized by the intelligent network. SC
P1 analyzes the parameters of the instruction and selects the required service description (call transfer service in this case),
After determining the telephone number of the transfer destination by referring to the database of SCP1, the telephone number and the call setting instruction are sent to the exchange 5 via the data link 4. The exchange 5 performs a connection process to the transfer destination telephone number according to the instruction.

In this case, if call waiting is a service that should be preferentially activated, this service is implemented inside the exchange without being managed by SCP.

Next, an example of changing the table when a new service is added to SCP1 will be described. In this embodiment, the SMS 3 manages the service contention control table.
When adding a new service, the SMS 3 changes the table of Table 1 which is the service competition control management table,
After the change is completed, use SMS3 and data link 2 to S
Download new table to CP1. SCP1
Downloads the table to the exchange 5 using the data link 4 after the reception of the table is completed. With these downloads, the race conditions for the new service have been added. In the present embodiment, the example in which the table is downloaded in the order of SMS3 → SCP1 → Switch 5 has been described, but the direct download of SMS3 → Switch 5 and the download of only the change of the table are also variations in the actual implementation. Is adopted as.

Although the control node is the SCP in the above-mentioned embodiment, the same operation is carried out when the control node is the ajunct.

[0015]

As described above, according to the present invention, the service activated at each event of the exchange is set with the activation priority and set in the table for service conflict control management, and the table is used as a common table for the exchange. Provided on both control nodes, if the service having the highest activation priority is a service to be realized according to the call processing program of the exchange itself, the service is realized inside the exchange, and the service having the highest activation priority is controlled by the control node. In the case of a service that should be realized under the control of, the service is realized in accordance with the instruction of the control node, so that there is an effect that it is possible to perform competition control of the service across both the exchange and the intelligent network.

[Brief description of drawings]

FIG. 1 is a block diagram of one embodiment of the present invention.

[Explanation of symbols]

 1 SCP 2 Data Link (SCP-SMS) 3 SMS 4 Data Link (SCP-Switch) 5 Switch

Claims (5)

[Claims] 1. A control node is installed in a communication network, and data for controlling various services and a control program are stored in this control node, and the control node stores data for instructing to realize a desired service. In a service contention control method in an intelligent network, which transmits to a switching system via a line, and the switching system provides a call connection service to a communication network in response to the instruction, in the service provided to the communication network, the switching system calls the own switch. The service realized inside the exchange according to the processing program is the first service, and the service realized under the control of the control node by the exchange is the second service. For each event that occurs in the exchange, , The identification information of the service started by the event, the start priority of the service, and the A table for service contention control management in which whether the service is the first service or the second service is set is created, and the table for service contention control management is common to the exchange and the control node. Table is stored in the exchange and the control node, and when an event occurs in the exchange, the exchange indexes the table for service conflict control management with the event, and the service with the highest activation priority for the event is the first. When the service belongs to the service, the switch realizes the service inside the switch, and when the service having the highest activation priority for the event belongs to the second service, the switch sends the service to the control node at least. Parameter including information including the identification information of the service, the event name and the attribute The service contention control method in the intelligent network in which the service control node controls the exchange by a known method based on the instruction. 2. The communication network further has a service management system, and when a new service is added, the service management system changes the table for service conflict control management, and the changed table is The service contention control method in an intelligent network according to claim 1, wherein the service contention control method is downloaded to an exchange or a control node. 3. The event corresponds to a transition of a switch to a new state, and the switch, at each transition to the new state,
The method according to claim 1, wherein a table for service competition control management is indexed using the event as a key. 4. The method according to claim 1, wherein the control node is a service control point. 5. The method according to claim 1, wherein the control node is an adjunct.