JP4008068B2 - Multimedia service control device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a multimedia service control apparatus used for realizing various multimedia applications.
[0002]
[Prior art]
FIG. 8 is a block diagram showing a conventional multimedia service control apparatus disclosed in, for example, Japanese Patent Laid-Open No. 4-215357. In FIG. 8, 1-1 to 1-M are subscriber terminals, and 14 is a call and connection. Call processing modules 8-1 to 8-N are service control modules that perform service control. Reference numerals 2-1 to 2-M and 9-1 to 9-N denote user network interfaces (hereinafter referred to as UNI).
[0003]
Next, the operation will be described.
FIG. 9 is an operation principle diagram showing a conventional multimedia service control apparatus. The operation will be described with reference to FIG. 8 and FIG.
[0004]
In FIG. 8, service control modules 8-1 to 8-N are provided for each service independently of the call processing module 14, and the call processing module 14 and the service control modules 8-1 to 8-N are connected to UNIs 9-1 to 9-1. 9-N, and as shown in FIG. 9, first, by the routing function to the service control modules 8-1 to 8-N, between the calling subscriber terminal 1-1 and the service control modules 8-1 to 8-N And the service control modules 8-1 to 8-N using the end-to-end protocol between the calling subscriber terminal 1-1 and the service control modules 8-1 to 8-N on the connection. The B-ISDN service has been realized by setting up a call and connection between the called subscriber terminals 1-M.
[0005]
Since such a B-ISDN service control method is intended for a single party and a single communication network, the multimedia multi-user service realized over an actual multi-party and a plurality of communication networks is applicable. It cannot be applied. In addition, when the users at the subscriber terminals 1-1 to 1-M intend to simultaneously realize a plurality of services, the load on the call processing module 14 increases. In addition, to the communication network such as increase of communication traffic in the call processing module 14 in response to requests such as addition / deletion of other services during execution of a service, change / addition / deletion of media, and addition / removal of members. The influence of will become large.
[0006]
Therefore, in a service control network that is logically separated for each service independently of a communication network that includes a call processing module 14 for realizing a plurality of services based on services provided over various communication networks. Service control is required.
[0007]
[Problems to be solved by the invention]
Since the conventional multimedia service control apparatus is configured as described above, it can be called by a routing function to the service control modules 8-1 to 8-N through the call processing module 14 in response to a request from a calling terminal subscriber. A call and connection between the subscriber terminal 1-1 and the service control modules 8-1 to 8-N is set, and the end between the calling subscriber terminal 1-1 and the service control modules 8-1 to 8-N is established on the connection. -In the case of setting a plurality of connections in order to realize a B-ISDN service by setting a call and connection between the called subscriber terminals 1-M from the service control modules 8-1 to 8-N using an end protocol. Has a problem that it takes time to start communication.
[0008]
In addition, when various service requests are concentrated, there is a problem that the load on the call processing module 14 increases.
Furthermore, there has been a problem that communication traffic for setting up a plurality of calls and multi-connections increases.
Furthermore, there has been a problem that B-ISDN service across multiple parties and a plurality of transmission networks cannot be realized.
[0009]
The present invention has been made to solve the above-described problems, and improves the service processing speed, prevents an increase in communication traffic for a plurality of service processes, and reduces the load on the call processing module in the transmission communication network. It is an object of the present invention to provide a multimedia service control apparatus that can realize a multi-media / multi-user service across multi-party and a plurality of transmission communication networks.
[0010]
[Means for Solving the Problems]
A multimedia service control apparatus according to the first aspect of the present invention is provided separately in a transmission communication network, and a service control module that controls the entire service supplied between multimedia terminals requested to connect from a multimedia terminal; A service processing module for connecting the multimedia terminals , and the service control module has a calling multimedia terminal in the case where the party of the called multimedia terminal corresponding to the service request message from the calling multimedia terminal cannot accept the service. A party control task object that broadcasts the result, an access control task object that controls the direction of service media and information transfer to the destination multimedia terminal that can accept the service, and between the originating multimedia terminal and the destination multimedia terminal. No And session control task object that controls the establishment of Deployment, in which a resource control task object to start the physical communication resources required for that session.
[ 0011 ]
The multimedia service control device according to the invention described in claim 2 is a call control task object for setting a call to a destination multimedia terminal requested for connection to a service processing module according to control from the service control module; A connection control task object for controlling the establishment of a connection path between the originating multimedia terminal and the destination multimedia terminal according to the call setting is provided.
[ 0012 ]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described below.
Embodiment 1 FIG.
FIG. 1 is a block diagram showing a multimedia service control apparatus according to Embodiment 1 of the present invention. In the figure, reference numerals 1-1 to 1-M denote subscriber terminals (multimedia terminals) for data transmission to realize an application. 2-1 to 2-M and 9-1 to 9-N are user network interfaces (hereinafter referred to as UNI: User Network Interface), and 13-1 to 13-N are network network interfaces (hereinafter referred to as NNI). : Network Network Interface), 8 is a service control module that performs service control, and 10-1 to 10-N are service processing modules that perform call / connection control based on the control in the service control module 8.
[ 0013 ]
In the service control module 8, 3 is a party control task (party control task object) for performing party control in the requested service from the subscriber terminals 1-1 to 1 -M, and 4-1 to 4 -N are subscriber terminals 1-1. 1 to 1-M Access control task (access control task object) for controlling which medium and in which direction a service is provided to each party based on a signal control task 7 for controlling a request signal from 5-1M, 5-1 5-N is a session control task (session control task object) for establishing a session for realizing a service to each of the subscriber terminals 1-1 to 1-M, and 6-1 to 6-N are on the session. It is a resource control task (resource control task object) that controls the resources required in.
[ 0014 ]
In the service processing modules 10-1 to 10-N, 11-1 to 11-N respond to requests from the resource control tasks 6-1 to 6-N of the service control module 8 through the UNIs 9-1 to 9-N. Based on this, a call control task (call control task object) that performs call control corresponding to each transmission communication network that performs data transmission, and 12-1 to 12-N are connection control tasks (connection control task objects) that control connections. .
Further, reference numeral 14 denotes a call processing module that performs call processing for establishing a connection in the transmission communication network based on each control via the NNIs 13-1 to 13-N.
[ 0015 ]
FIG. 2 is a hardware configuration diagram showing the multimedia service control apparatus according to Embodiment 1 of the present invention. In FIG. 2, reference numeral 15 denotes service control including a service control module 8 and service processing modules 10-1 to 10-N. Server, 16 is information content, 17 is service content, 18 is an internal bus such as LAN, 19 is a multimedia service gateway, 20 is a switch including the call processing module 14, 21 is a communication network interface, 22 is a subscriber terminal 1- 1 is a communication network to which 1-M is connected.
[ 0016 ]
Next, the operation will be described.
FIG. 3 is an operation principle diagram showing the multimedia service control apparatus according to Embodiment 1 of the present invention, in which the subscriber terminal 1-1 is a calling subscriber terminal and the subscriber terminal 1-M is a called subscriber terminal. In FIG. 3, the operation procedure of the first embodiment will be described.
[ 0017 ]
(Procedure 1) A service request message is passed from the calling subscriber terminal 1-1 to the service control module 8.
(Procedure 2) The service control module 8 performs the following control functions in order to issue a call setting request signal to the service processing modules 10-1 to 10-N.
(Procedure 2-1) Party control function: In the party control task 3, referring to the service database, whether or not a service can be accepted by each party requested from the service request message passed from the calling subscriber terminal 1-1. Investigate. If all parties are accepted, the process proceeds to the next stage, and if there are unacceptable parties, the result is notified to the calling subscriber terminal 1-1.
[ 0018 ]
(Procedure 2-2) Access control function: The access control tasks 4-1 to 4-N request each party received from the party control task 3 to set up a session from the calling subscriber terminal 1-1. Control the direction of service media and information transmission.
(Procedure 2-3) Session control function: In the session control tasks 5-1 to 5-N, parties required for realizing the requested service based on the results from the access control tasks 4-1 to 4-N Control the establishment of sessions between.
When the establishment of the session is established, the result is stored in the service database, and a request is issued to the resource control tasks 6-1 to 6-N for the session.
(Procedure 2-4) Resource control function: In the resource control tasks 6-1 to 6-N, required physical resources are activated based on requests from the session control tasks 5-1 to 5-N. .
[ 0019 ]
(Procedure 3) The corresponding service processing modules 10-1 to 10-N are activated by the control from the resource control tasks 6-1 to 6-N of the service control module 8, and perform the following control functions.
(Procedure 3-1) Call control function: In the call control tasks 11-1 to 11-N, the requested subscriber terminals 1-1 to 1-1 are requested from the messages passed from the resource control tasks 6-1 to 6-N. -Send a call setup request signal to M. When a call setup response signal is received from each of the subscriber terminals 1-1 to 1-M, the service control module 8 is notified of the result. At the same time, a connection setting request signal is issued to the connection control tasks 12-1 to 12-N.
(Procedure 3-2) Connection control function: In connection control tasks 12-1 to 12-N, when connection setting request signals are received from call control tasks 11-1 to 11-N, a connection request signal is sent to the called subscriber terminal. put out. When a connection response signal is received from the called subscriber terminal, a connection is established between the calling subscriber terminal and the called subscriber terminal.
[ 0020 ]
As described above, according to the first embodiment, the multimedia service control apparatus efficiently processes complex multimedia service control by configuring the service control module 8 separately in the transmission communication network. For this reason, the service can be provided to a user who uses the service quickly and highly.
FIG. 4 is an operation principle diagram showing a multimedia service control apparatus in which FIG. 3 is simplified to clearly show a configuration that achieves the above effect.
[ 0021 ]
Further, in various communication networks between the plurality of subscriber terminals 1-1 to 1-M, service processing modules 10-1 to 10-N for processing information transmission based on control from the service control module 8 are provided. By providing, the load of the call processing module 14 in the transmission communication network can be reduced.
[ 0022 ]
Further, the service control module 8 has a party control task 3 and access control tasks 4-1 to 4-N which are control elements at the subscriber terminals 1-1 to 1-M level. -1 to 1-M service acceptance status, user and media changes during service execution can be immediately grasped, and an increase in communication traffic for call / connection processing by multiple services at the transmission level can be prevented. .
[ 0023 ]
Further, in the service control module 8, session control tasks 5-1 to 5-N for controlling establishment and release of a session which is a logical connection between the calling subscriber terminal 1-1 and the called subscriber terminal 1-M, By providing the resource control tasks 6-1 to 6-N for controlling the physical communication resources associated therewith, the communication resources can be effectively used.
[ 0024 ]
Embodiment 2. FIG.
A case where the multimedia service control apparatus of the first embodiment is applied to a multimedia conversation service will be described.
FIG. 5 is a service control scenario diagram when the multimedia service control apparatus according to Embodiment 2 of the present invention is applied to a multimedia conversation service. The subscriber terminal 1-1 is the calling subscriber terminal, and the subscriber terminal 1- M is a called subscriber terminal.
[ 0025 ]
When the calling subscriber terminal 1-1 sends a service setting request signal to the service control module 8 by the routing function, the service control module 8 activates the party control task 3 in the module based on the request, and the signal control task 7 A session setting request signal is issued to each control task. Next, when the processing in each control task is completed and a session setting response signal is returned to the service control module 8, a session is established between the calling subscriber terminal 1-1 and the called subscriber terminal 1-M. When the session is established, the service control module 8 sends a call setting request signal to the call processing module 14 based on the call control in the service processing modules 10-1 to 10-N. The call processing module 14 sends a call setting request signal to the called subscriber terminal 1-M, and when receiving a call setting response signal from the called subscriber terminal 1-M, sends the result to the service control module 8, The service control module 8 issues a call setup response signal to the calling subscriber terminal 1-1.
[ 0026 ]
When a call is set up between the calling subscriber terminal 1-1 and the called subscriber terminal 1-M, the calling function from the calling subscriber terminal 1-1 to the called subscriber terminal 1 is next performed by the routing function in the call processing module 14. -Set up the required number of connections between -M. For example, in a video conference service in which bearer connection attributes such as the number of connections and bit rate are known in advance, an audio connection and an image connection are set. When all connections are established, the service is started.
[ 0027 ]
As described above, according to the second embodiment, the service processing is performed by the control by the control task in the service control module 8, thereby improving the communication processing speed by performing the connection processing in the transmission communication network. be able to.
[ 0028 ]
Embodiment 3 FIG.
FIG. 6 is a service control scenario diagram when the multimedia service control apparatus according to the third embodiment of the present invention is applied to a multimedia conversation service. The third embodiment of the present invention is a multimedia control according to the second embodiment. A service control scenario when an interruption of another member occurs during a conversation in the conversation service is shown.
[ 0029 ]
In the middle of a conversation using the multimedia conversation service, when a request to participate in the conversation service is issued from another subscriber terminal to the service control module 8, service control is performed separately from the currently performed conversation service. Based on the request, the module 8 activates the party control task 3 in the module, and a signal control task 7 issues a session setting request signal to each control task. Next, when the processing in each control task is completed and a session setting response signal is returned to the service control module 8, a session is established between the subscriber terminal and the interrupting subscriber terminal in conversation. When the session is established, the service control module 8 sends a call setting request signal to the call processing module 14. The call processing module 14 transmits a call setting request signal to each subscriber terminal in conversation based on the transmission of the call setting request signal, and receives a call setting response signal from each subscriber terminal. The service control module 8 issues a call setup response signal to the interrupting subscriber terminal.
[ 0030 ]
Next, a necessary number of connections are set between the subscriber terminals by the routing function in the call processing module 14. That is, when a connection setting request is issued and the connection setting response is completed, the connection is established.
[ 0031 ]
As described above, according to the third embodiment, control can be performed in the service control network independently of service processing in the transmission communication network even if an interrupt of another member occurs during service execution. Therefore, an increase in communication traffic can be prevented.
[ 0032 ]
Embodiment 4 FIG.
FIG. 7 is a service control scenario diagram when the multimedia service control apparatus according to the fourth embodiment of the present invention is applied to a multimedia conversation service. The fourth embodiment of the present invention is a multimedia control according to the second embodiment. A service control scenario in the case where a user who is executing a service makes a service addition request during a conversation in the conversation service will be described.
[ 0033 ]
During the conversation using the multimedia conversation service, the service control module 8 activates the party control task 3 in the module based on the request separately from the conversation service execution from the subscriber terminal that is performing the service. The signal control task 7 issues a session setting request signal to each control task. Next, when the processing in each control task is completed and a session setting response signal is returned to the service control module 8, a session is established between the subscriber terminal that is in service and the new subscriber terminal. When the session is established, the service control module 8 sends a call addition setting request signal to the call processing module 14. Further, the call processing module 14 sends a call setting request signal to the subscriber terminal in conversation and a new called subscriber terminal based on the transmission of the call setting request signal, and receives a call setting response signal from the new called subscriber terminal. Then, the result is sent to the service control module 8, and the service control module 8 issues a call addition setting response signal to the subscriber terminal that is performing the service.
[ 0034 ]
Next, by the routing function in the call processing module 14, a necessary number of connections are set up between the subscriber terminal that is performing the service and the new subscriber terminal. That is, when a connection setting request is issued and the connection setting response is completed, the connection is established.
[ 0035 ]
【The invention's effect】
As described above, according to the first aspect of the present invention, the service control module is provided separately from the transmission communication network, and controls the entire service supplied between the multimedia terminals requested to connect from the multimedia terminal; Since it is configured to include a service processing module for connecting the multimedia terminals, it can efficiently process complex multimedia service control, and provides a service to a user who uses the service quickly and highly. There is an effect that can.
A party control task object for notifying the service control module of a result to the calling multimedia terminal when the party of the called multimedia terminal corresponding to the service request message from the calling multimedia terminal cannot accept the service, and the service An access control task object that controls the direction of service media and information transfer to an acceptable destination multimedia terminal; a session control task object that controls the establishment of a session between the originating multimedia terminal and the destination multimedia terminal; Since the resource control task object that activates the physical communication resource necessary for the session is provided, the service control module includes a party control task module that is a control element at the subscriber terminal level. By having access control task module and the communication for the service acceptance conditions, the service execution during the user can immediately grasp the change of media, the call / connection processing by a plurality of services in the transmission level to the subscriber terminal There is an effect of preventing an increase in traffic.
Further, the service control module includes a session control task for controlling establishment and release of a session, which is a logical connection between a calling subscriber terminal and a called subscriber terminal, and a resource control task for controlling a physical communication resource associated therewith. Thus, there is an effect that useful use of communication resources becomes possible.
[ 0036 ]
According to the second aspect of the present invention, the call processing task object for setting a call to the destination multimedia terminal requested to connect to the service processing module according to the control from the service control module, and the call setting Accordingly, since the connection control task object for controlling the establishment of the connection path between the originating multimedia terminal and the destination multimedia terminal is provided, various communication networks between a plurality of subscriber terminals are provided with services. By providing a service processing module that processes information transmission based on control from the control module, there is an effect that the load on the call processing module in the communication network can be reduced.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a multimedia service control apparatus according to Embodiment 1 of the present invention.
FIG. 2 is a hardware configuration diagram showing a multimedia service control apparatus according to Embodiment 1 of the present invention;
FIG. 3 is an operation principle diagram showing a multimedia service control apparatus according to Embodiment 1 of the present invention;
FIG. 4 is an operational principle diagram showing a multimedia service control apparatus that clearly shows a configuration that produces an effect by simplifying FIG. 3;
FIG. 5 is a service control scenario diagram when the multimedia service control apparatus according to the second embodiment of the present invention is applied to a multimedia conversation service;
FIG. 6 is a service control scenario diagram when the multimedia service control apparatus according to the third embodiment of the present invention is applied to a multimedia conversation service.
FIG. 7 is a service control scenario diagram when the multimedia service control apparatus according to the fourth embodiment of the present invention is applied to a multimedia conversation service;
FIG. 8 is a block diagram illustrating a conventional multimedia service control apparatus.
FIG. 9 is an operation principle diagram illustrating a conventional multimedia service control apparatus.
[Explanation of symbols]
1-1 to 1-M subscriber terminal (multimedia terminal), 3 party control task (party control task object), 4-1 to 4-N access control task (access control task object), 5-1 to 5- N session control task (session control task object), 6-1 to 6-N resource control task (resource control task object), 8 service control module, 10-1 to 10-N service processing module, 11-1 to 11- N call control task (call control task object), 12-1 to 12-N connection control task (connection control task object).

Claims (2)

A plurality of multimedia terminals connected to the transmission communication network, and a service control module that is provided separately from the transmission communication network and controls the entire service supplied between the multimedia terminals requested to connect from the multimedia terminal And a service processing module for connecting the multimedia terminals requested to be connected to the service control module in the transmission communication network, the service control module receiving an incoming call corresponding to a service request message from the originating multimedia terminal. A party control task object that determines whether a party of the multimedia terminal can accept the service, and notifies the result to the originating multimedia terminal if the party is not accepted, and accepts the service in the party control task object the above An access control task object for controlling the direction of the media of the service and information transfer to the multimedia terminal, and session control for controlling the establishment of a session which is a logical connection between the originating multimedia terminal and the destination multimedia terminal A multimedia service control apparatus comprising: a task object; and a resource control task object that activates a physical communication resource necessary for the session in response to a request from the session control task object .   The service processing module, in response to control from the service control module, sets a call control task object to the destination multimedia terminal requested to be connected, and sets the call multitasking in response to the call setting by the call control task object. 2. The multimedia service control apparatus according to claim 1, further comprising a connection control task object for controlling establishment of a connection path between the media terminal and the destination multimedia terminal.

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