JPH0575719A - Wide band service call process executing system - Google Patents

Abstract

PURPOSE:To easily execute the development of a new service, and to introduce the new service in an early stage by dividing call control and connection control, and symplifying each service logic program. CONSTITUTION:A call corresponding service logic program 21a for executing call control corresponding to a service, and connection corresponding service logic programs 21b, 21c... for controlling the connection between a multi-media terminal and each resource are generated in advance at every connection. When the service is requested from the multi-media terminal, a call control part 11 actuates the call corresponding service logic program 21a. Thereafter, in accordance with the mutual operation of each service logic program 21a, 21b, 21c... prescribed resources are connected successively to the multi-media terminal and the requested wide band service is obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a broadband service call processing execution system, and in particular, in response to a service request from a terminal, a plurality of resources are appropriately connected to the terminal to provide a predetermined service. The present invention relates to a broadband service call processing execution system in a switching control node or an intelligent network (IN) switching control node or a service switching node provided.

Communication services realized by exchanges or intelligent networks are becoming more diverse and complex, and there is a demand for more efficient service development.
Also, with the introduction of broadband ISDN in the future, broadband services will be
Since the demand for service development is expected to increase, it is expected that the importance of intelligent networks, whose purpose is the early introduction of services, will increase even more. Even in the intelligent network architecture, the basic function of call processing is the call processing that has been conventionally executed by the exchange, so the call processing can be executed with flexibility and flexibility to easily add / change services. A method is desired.

[0003]

2. Description of the Related Art FIG. 7 shows a call processing flow in the case where a conventional basic two-way connection service in an exchange is realized by a call origination / detachment method by a message sequence between objects. Reference numeral 1 is a control device for controlling call processing of the calling side exchange, which is represented by a call control object (Caller) 1a and a service logic program (SLP) 1b for performing predetermined service control. Reference numeral 2 is a control device for controlling the call processing of the called exchange, which is similarly represented by a call control object (Callee) 2a and a service logic program (SLP) 2b for performing predetermined service control. .. Reference numeral 3 is a resource control unit for controlling the communication path circuit, the subscriber circuit, etc., and represents both the calling and receiving sides. Reference numeral 4 is a subscriber analysis unit, and 5 is a service analysis unit, which is a processing unit which is handled by the service logic program SLP of the control devices 1 and 2, respectively, and is separated from the service logic program (SLP) for the sake of explanation. Is shown.

The call control object Caller is the calling subscriber.
When the fact that the (telephone terminal) has gone off-hook (calling) is received via the resource control unit 3, the subscriber analysis unit 4 is requested to analyze the calling subscriber. The subscriber analysis unit 4 refers to the subscriber data, performs subscriber analysis (for example, whether or not the telephone charge is paid), and notifies the call control object Caller of the analysis result. According to the analysis result, if the call is possible, the call control object Caller issues an information input request to the resource control unit 3, that is, prompts the calling subscriber to input the information by inputting a dial tone and inputting a number. When the call subscriber inputs information, the service analysis unit 5 is requested to analyze the information.

The service analysis unit 5 analyzes the information and notifies the call control object Caller of the analysis result. For example, when the unconditional transfer service is requested by a special number, the call control object Caller is notified of the transfer destination telephone number. As a result, the call control object Caller issues an activation request to the transfer destination exchange, a resource acquisition / connection request to the resource control unit 3, and the call control object Callee on the called side is also a resource. A resource acquisition / connection request is issued to the control unit 3. And the call control object Call
When the ee receives the response notification from the resource control unit 3, it issues a path connection request and also notifies the call control object Caller of the response, whereby the call control object Caller sends the path connection request to the resource control unit 3. Then, the path is established between the calling subscriber and the called subscriber, and thereafter a call is made and the path is disconnected by the on-hook of the telephone terminal.

As described above, normally, the call processing is the call origination processing,
It consists of service analysis processing, service execution processing, and call termination processing, and a series of call processing control is performed by a call control object (calling side: Caller, called side: Callee).
Service logic program S that describes bislogic
Running according to LP. That is, in the conventional call processing execution method for analog or narrow band ISDN, the call control and the connection control are integrated, and the connection control has only to be performed for one resource.

FIG. 8 shows a computer connected to an exchange.
It is a block diagram of the intelligent network which performs an advanced service. In the figure, reference numerals 6 and 7 denote exchanges, which have speech path circuits 6a and 7a, central processing units 6b and 7b for performing exchange control, subscriber circuits, trunks and the like (not shown). 8 is a computer for service control, which is connected to each exchange so that data can be exchanged, and includes a processing unit 8a,
Storage unit 8 for storing the service logic program SLP
b and a database 8c. In the intelligent network, when there is a call from the calling subscriber A accompanied by a special number, the calling exchange 6 notifies the special number to the service controlling computer 8 and the service controlling computer. The server 8 analyzes the service of the special number input according to the service logic program SLP, and if free dial service, transfer service, etc. are requested by the special number, the incoming call from the database DB joins. The telephone number of the person B is obtained, the analysis result (telephone number, etc.) is notified to the originating exchange 6, and the normal path is established thereafter. In the intelligent network, processing such as service analysis and service execution is performed on the computer side, which is provided separately, and various advanced services are performed.
Although it realizes the service, the connection control is performed for one resource.

[0008]

Broadband IS
When the DN is introduced, multiple calls are made for one call.
Set up a connection (for example, connection with multiple media such as audio devices and image devices) with the device,
It is expected that the number of services for controlling these connections simultaneously and synchronously / asynchronously will increase. In order to control multiple connections in such a broadband service with a call processing execution method of an exchange or an intelligent network in which conventional call control and connection control are integrated, one service logic program SLP controls multiple connections. Must be realized. However, if it is realized by one service logic program SLP, the control logic becomes complicated, and the number of development man-hours increases, which becomes a factor that hinders the early introduction of a new service.

In view of the above, an object of the present invention is to separate call control and connection control into layers in call processing for a broadband service (division of service logic program), and control each of them in each service logic program. It is an object of the present invention to provide a broadband service call processing execution method that is executed independently or in parallel based on the above. Another object of the present invention is to divide call control and connection control and simplify each service logic program.
It is an object of the present invention to provide a broadband service call processing execution system which can easily develop a new service and can introduce the new service at an early stage.

[0010]

FIG. 1 illustrates the principle of the present invention. Reference numeral 11 denotes a call control unit that activates each service logic program and receives a processing result from each program to execute call control and connection control. The call control unit 11 includes a call correspondence control unit 11a and a connection correspondence control 11b. There is. Reference numeral 21 is a service logic program SLP in which the call control for a predetermined service and the service logic for each connection control are described independently. The service logic program SLP (call-supporting SLP) 21a,
It has a service logic program (connection-compatible SLP) 21b, 21c, ... For each connection. Reference numeral 31 is a resource, which represents a multimedia terminal and a plurality of various resources.

[0011]

A call-support service logic program (call-support SLP) for executing call control according to a service in advance.
21a and a connection-compatible service logic program (connection-compatible SLP) 21b, 2 for controlling the connection between the multimedia terminal and each resource.
1c ... Is created for each connection, and when the multimedia terminal requests service, the call control unit 11
Activates the call-corresponding SLP 21a, and thereafter, each service logic program (SLP) 21a, 21b, 21c ...
・ Sequentially connecting a predetermined resource to the multimedia terminal according to the mutual operation of, to provide the required wideband service.

As described above, in the call processing for the broadband service, the call control and the connection control are separated (the service logic program is divided), and each control is independently performed based on each service logic program. In addition, since they are executed in parallel, each service logic program can be simplified, new services can be easily developed, and therefore new services can be introduced early. it can

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Overall Structure FIG. 2 is a structural view of an embodiment of the present invention when applied to an intelligent network, and the same parts as those in FIG. 1 are designated by the same reference numerals. In the figure, 10 is an exchange, 20 is a computer for service control connected to the exchange, 3
Reference numeral 1 denotes a resource, which is represented by one block as a representative of the multimedia terminal and a plurality of various resources.

In the exchange 10, reference numeral 11 is a call control unit that activates each service logic program and receives a processing result from each program to execute call control and connection control. It is provided with a connection correspondence control 11b. Reference numeral 12 is a call processing element function unit composed of software for executing general-purpose call processing that does not depend on services such as subscriber analysis and service analysis, and 13 is a resource control unit, which is a communication path. Circuits, subscriber circuits, trunks, etc.

In the computer 20, 21, 22,
... is a service in which the call control for a predetermined service and the service logic for each connection control are described independently.
The service logic program SLP includes a call-compatible service logic program (call-compatible SLP) 21a and connection-compatible service logic programs (connection-compatible SLP) 21b, 21c, ....

Overall Operation Hereinafter, the overall operation of FIG. 2 will be described in the case of realizing a voting service. 3 to 5 are the call processing flow of the voting service. The resources of the system that realizes the voting service include voting terminals (multimedia terminals), announcement devices that provide information on candidates, ballot box devices that receive and aggregate voting data, and voting summary bulletins. Is required, and resource control units 13a to 13d are provided in accordance with these resources.
In addition, as a service logic program SLP,
Service Logic Execution Environment, which is an interpreter for executing services.
t) Program SLEE and call support SLP (PSLP)
, Three connections between voting terminal and announcement device, between voting terminal and voting box device, and between voting terminal and aggregation center co
SLP for 3 connections depending on n ₁ , con ₂ and con ₃
(CSLP1, CSLP2, CSLP3) are provided.

The outline of the voting service is as follows: When a special service number is dialed from a multimedia terminal of a broadband ISDN (voting terminal capable of handling voice, image, data, etc.) to request the voting service, the call control unit 11 makes each service. -In accordance with the service logic program, an announcement device is connected to the multimedia terminal that requested the service to provide the candidate information in the form of voice or image, and the multimedia terminal requests the information (subscriber's button operation). Connect the ballot box device to the terminal, receive the voting data, and when the voting ends, the announcement device sends a service end message to the multimedia terminal to release the announcement device and ballot box device. And then
Finish the screw. In addition, while the service is being executed, the summary center asynchronously provides the summary information to the multimedia terminal.

FIG. 6 shows the state when the voting service is executed.
31a is a multimedia terminal, 31b is an announcement device, 31c is a ballot box device, 31d is a totaling center, and 32 is a symbol that means one-way communication. In the present invention, the service execution state is
The state of each call and each connection is managed in a separated hierarchy. That is, from the announcement device 31b to the terminal 3
1a call state, terminal 31a to ballot box device 31c call state, aggregation center 31d to terminal 31a call state, announcement device 31b to terminal 31a connection state, 5 terminal 31a to ballot box device 31c The connection state and the connection state from the aggregation center 31d to the terminal 31a are managed separately in a hierarchical manner. As a result, the call control unit 11 can independently handle the call being serviced and the state of each connection. The voting service execution method will be described below with reference to FIGS.

Call control and connection control In order to vote, a special number is input from the multimedia terminal 31a (step S01), the call controller 11 performs service analysis, and as a result of the analysis, a request for voting service is issued. When it is found that there is a trigger message, it sends a trigger message to the service logic execution environment program SLEE (step S0).
2). When a trigger message is input, the service logic execution environment program SLEE causes the call service SLP in which the call level logic in the voting service is described.
(PSLP) is started (step S03). Call support S
When the LP (PSLP) is activated, the SLP corresponding to the first and third connections is executed according to the described logic.
Start (CSLP1, CSLP3) (step S0
4, S05).

SLP for the first connection activated
(CSLP1) sends a process continuation message to the call control unit 11 in order to set up a connection between the two parties (in this case, between the multimedia terminal 31a and the announcement device 31b) (step S06), The activated third connection SLP (CSLP3) sends an event monitoring message to the call control unit 11 in order to monitor a connection setting request event that occurs asynchronously from the aggregation center 31d (step S07). ).

The call control unit 11 handles these messages independently for each connection based on the status information (1) to (4) shown in FIG. That is,
Regarding the processing continuation message from the SLP (CSLP1) corresponding to the first connection, the announcement device control unit 13
Send a capture / connect message to b (step 0)
8). Also, SLP (CSLP3) for the third connection
As for the event monitoring message from, the corresponding event (connection setting request event) is waited for.

Then, when a connection OK message is received from the announcement device controller 13b (step S0).
9), the call controller 11 sends a continuous response message to the SLP (CSLP1) corresponding to the first connection (step S1).
0). In response to this, the SLP (CSLP1) corresponding to the first connection informs the call control unit 11 of the resource start message.
(Step S11). Upon receiving this message, the call control unit 11 sends a start message to the announcement device control unit 13b (step S12).

At the time when the announcement device 31b is normally activated, an announcement by image and voice is sent to the multimedia terminal 31a, and information about the candidates is provided (step S13). At the same time, the start OK message is sent. -Is sent to the call controller 11 (step S14). When the call control unit 11 receives the start OK message, the first call
A start completion message is sent to the connection-compatible SLP (CSLP1) (step S15).

While the announcement is flowing to the multimedia terminal 31a, when the user performs an operation such as pressing a button instructed by the announcement in order to vote (step 16), the multimedia terminal 31a-votes Box device 31
In order to set up the connection between c, the announcement device controller 13b sends a connection setting request message to the call controller 11 (step S17).

As a result, the call controller 11 causes the call-supporting SLP.
A connection setting request message is sent to (PSLP) (step S18). Call SLP (PSLP)
Receives this message, S for the second connection
The LP (CSLP2) is activated (step S19).

SLP for the activated second connection
The (CSLP2) sends a processing continuation message to the call control unit 11 in order to set up a connection between the two parties (in this case, between the multimedia terminal 31a and the ballot box device 31c) (step S20). ). The call control unit 11 starts the setting of the connection between the multimedia terminal 31a and the ballot box device 31c (steps S21 to S25) in the same procedure as that of the announcement device 31b, and after the connection setting is completed, the start OK message is displayed. -Is sent to the call controller 11 (step S26). The call control unit 11 is a star
When the OK message is received, a start completion message is sent to the SLP (CSLP2) corresponding to the second connection (step S27).

When the start completion message is received, the second connection-compatible SLP (CSLP2) sends a message indicating that "voting data can be accepted" to the call control unit 11 (step S28), and the call control unit. 11 sends a "voting data acceptable" message to the multimedia terminal 31a (step 29).

As a result, when the user inputs the voting data, the ballot box device 31c fetches the voting data and stores / collects the voting data, and at the same time, the call control unit 1 confirms that the voting data has been received.
1 is notified (steps S30 and S31). Call control unit 1
When 1 receives the completion of voting data reception, it notifies the SLP (CSLP2) corresponding to the second connection to that effect, whereby the SLP (CSLP2) corresponding to the second connection notifies the call control unit 11 of "completion of voting data acceptance". At the same time as sending the message shown, the SLP (PSLP) corresponding to the call is notified of the completion of data reception (steps 32 to S34). Call control unit 1
1 sends a message indicating "completion of voting data acceptance" to the multimedia 31a to notify the user of completion of acceptance of voting data (step S35).

Parallel Control By the way, in the procedure of FIGS. 3 to 5, it is assumed that a connection setting request event occurs from the aggregation center 31d during the connection setting between the multimedia terminal 31a and the ballot box device 31c (FIG. 4). Step S51). In such a case, the call control unit 11 performs the connection setting process between the multimedia terminal 31a and the ballot box device 31c (steps 21 to S29) and the connection setting process between the multimedia terminal 31a and the aggregation center 31d (steps S51 to S51). The two processes of S61) are executed in parallel.

That is, when a connection setting request event occurs from the aggregation center 31d (step S5)
1), the event is the SLP (CS
Event monitoring message from LP3) (step S0
This is an event that is monitored by (see 7). Therefore, the call control unit 11 uses the S for the third connection.
A connection setting message for notifying the occurrence of the corresponding event is sent to the LP (CSLP3) (step S52). Third connection compatible SLP (CSLP
3) When receiving the connection setting message, the first
As in the case of the connection-compatible SLP (CSLP1), a processing continuation message is sent to the call control unit 11 (step S53). After that, the call control unit 11 starts the setting of the connection between the multimedia terminal 31a and the aggregation center 31dc in parallel with the connection setting process between the multimedia terminal 31a and the ballot box device 31c (steps S54 to S58). After the setting is completed, the totaling center 31d provides the multimedia terminal 31a with the voting totaling information by image and voice (step S59), and at the same time, sends the start OK message to the call control unit 11 (step S60). , The call control unit 11 starts the start
When receiving the message, SLP for the third connection
A start completion message is sent to (CSLP3) (step S61).

Call Service Termination Processing When the call-supporting SLP (PSLP) receives the data reception completion notification from the second-connection supporting SLP (CSLP2) (see step 34 in FIG. 5), the first-connection supporting SLP ( A message indicating the end processing is sent to the CSLP 1) (step S36). As a result, the SLP (CSLP1) corresponding to the first connection sends a resource control message for termination to the announcement control device 13b via the call control unit 11 (steps 37, 38). As a result,
At the same time that the announcement device 31b sends an announcement of the end of voting to the multimedia terminal 31a (step 39),
A processing completion message is sent to the call controller 11 (step 4).
0).

When the call control unit 11 receives the processing completion message, the SLP (CSLP1) corresponding to the first connection.
To the first connection SLP (CSLP) by sending a processing completion message to and receiving the processing completion message.
1) sends a processing completion message to the call corresponding SLP (PSLP) (steps 41 and 42). When the processing completion message is received, the call corresponding SLP (PSLP) is called by the call control unit 11.
To the disconnection (step S43), and SLPs corresponding to the first to third connections (CSLP1 to CSLP3)
Is released (step 44). Then SLP for call
(PSLP) is the service logic execution environment program S
The end is notified to the LEE, and the service logic execution environment program SLEE thereby notifies the call support SLP (PSL).
P) is released (steps 45 and 46).

On the other hand, the call control unit 11 receives the disconnection instruction, and the resource control units 13 of the multimedia terminal 31a, the announcement device 31b, the ballot box device 31c, and the totaling center 31d.
A disconnection instruction is issued to a to 13d (step 47), disconnection OK is received from each unit, and a series of service processing is ended.

Although the present invention has been described with reference to the voting service, the present invention can be applied to other service control cases. Further, the case where the invention is applied to the intelligent network has been described above.
It is also applicable when the LP is provided in the central processing unit of each exchange. Although the present invention has been described above with reference to the embodiments, the present invention can be variously modified according to the gist of the present invention described in the claims, and the present invention does not exclude these.

[0035]

As described above, according to the present invention, in the call processing for the wide band service, the call control and the connection control are separated and hierarchized (the service logic program is divided),
Since each control is configured to be executed independently and in parallel based on each service logic program, each service logic program can be simplified and new service development is easy. Therefore, it is possible to introduce a new service at an early stage.

Further, according to the present invention, since the information indicating the call state and the information indicating the state of each connection are separated and hierarchically managed independently, parallel control of each connection can be easily performed. You can

[Brief description of drawings]

FIG. 1 is a diagram illustrating the principle of the present invention.

FIG. 2 is a configuration diagram of an embodiment of the present invention.

FIG. 3 is an explanatory diagram of a first call processing procedure of a voting service.

FIG. 4 is an explanatory diagram of a second call processing procedure of the voting service.

FIG. 5 is an explanatory diagram of a third call processing procedure of the voting service.

FIG. 6 is an explanatory diagram of a state at the time of executing a voting service.

FIG. 7 is a call processing flow of a conventional basic two-way connection service in an exchange.

FIG. 8 is a block diagram of an intelligent network.

[Explanation of symbols]

 11 ... Call control unit 11a ... Call handling control unit 11b ... Connection handling control 21 ... Service logic program SLP 21a ... Call handling SLP 21b, 21c ... Connection handling SLP 31 ... Resource

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Mitsuaki Kakemizu 1015 Kamiodanaka, Nakahara-ku, Kawasaki-shi, Kanagawa Fujitsu Limited

Claims (2)

[Claims] 1. A broadband service call processing execution system for appropriately connecting a plurality of resources to a service request from a terminal to provide a predetermined service, the service requested by the terminal. A call control program (21a) for executing call control according to the service and a connection control program (21b, 21c) for controlling the connection between the terminal and each resource are provided for each connection. A control unit (11) for activating a program and executing call control and connection control is provided, and according to the mutual operation of each program, a resource is connected to a terminal to provide a predetermined wide band service. Broadband service call processing execution method. 2. The wideband service according to claim 1, wherein the control unit (11) monitors information indicating a call state and information indicating a state of each connection and performs parallel control of each connection. -Bis call processing execution method.