KR100243670B1 - Method for controlling - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a control method for multilateral communication of an asynchronous transmission mode terminal.

2. The technical problem to be solved by the invention

According to the present invention, the server analyzes a profile of a corresponding subscriber's service band, service period, and the like to perform a service if possible, and analyzes whether a subscriber can negotiate when receiving a result when the service is different from a registered subscriber's profile. To provide a control method to provide a multi-party communication service.

3. Summary of Solution to Invention

The present invention comprises the steps of analyzing the subscriber shape and service profile, reserving and allocating resources to establish a connection, updating a management table and providing a multilateral service, and transitioning to a released state when the service is completed, Terminating transmission and reception of subscriber data and releasing resources and virtual paths and virtual channels.

4. Important uses of the invention

The present invention is used in asynchronous delivery mode terminal and server.

Description

Control method for multi-party communication of asynchronous transmission mode terminal

According to the present invention, an asynchronous transmission mode switch system is provided by allocating an appropriate bandwidth to users while satisfying a user's requirement for a multi-connection service through an asynchronous transmission mode switch, and managing subscriber registration data between a terminal and a server for providing a service. The present invention relates to a control method for multi-party communication of an asynchronous delivery mode terminal for providing an efficient service to a subscriber while reducing the load of the terminal.

Asynchronous transmission mode terminal and server installs asynchronous transmission mode (ATM) adapter card in personal computer and configures hardware as terminal for asynchronous transmission mode communication. Design and implement software block for asynchronous data transmission to service with exchange. When receiving the request signal, only the virtual path connection by signaling between the terminal and the server is performed, and the service subscriber profile is managed by the server to perform the service according to the subscriber's request, thereby reducing the load of the exchange by reducing communication signaling with the exchange.

The addressing and routing of the connection establishment / release function between the asynchronous transmission mode exchange system and the asynchronous transmission mode terminal is usually addressed by signaling in the call control protocol, but in the case of a service by a semi-permanent virtual connection, an identifier for allocation. Since it is decided in advance, there is an urgent need to implement a method for realizing simple addressing using the same.

Therefore, the present invention is made for the request as described above, when a multi-party service request is received from the holding request subscriber to the terminal, the terminal makes a connection request to ask whether the service is available to the server, the server can service the corresponding subscribers It analyzes profiles such as bands and service cycles and notifies the terminal whether or not it can be connected according to the analysis result.If the requested service is available, it requests the connection request to the exchange system. If a subscriber service receives a result when it is different from the registered subscriber's profile, it analyzes whether it is a negotiable subscriber and sends a service change request to receive the subscriber's data re-entry to provide multilateral communication service. Asynchronous delivery It is an object of the present invention to provide a control method for multi-party communication of a mode terminal.

1 is an exemplary functional configuration of asynchronous transmission mode terminal and server for multi-party communication to which the present invention is applied.

2 is a flowchart of a control method for multi-party communication of an asynchronous delivery mode terminal according to an embodiment of the present invention.

3 is a flowchart illustrating a process of performing a multi-party communication service request and service profile analysis of FIG. 2.

4 is a flowchart illustrating a process of performing addition and invitation multi-party service request and service profile analysis of FIG. 2.

FIG. 5 is a flowchart illustrating a process of performing service release and withdrawal from FIG. 2; FIG.

* Explanation of symbols for the main parts of the drawings

110: asynchronous transfer mode adapter card 111: application program interface

112: communication protocol 113: signal protocol

114: asynchronous transmission mode adaptation layer 115: asynchronous transmission mode layer

120: multimedia service unit 130: call / connection control unit

140: shared memory / state control unit 150: multimedia interface unit

In order to achieve the above object, the present invention provides a control method for multi-party communication of an asynchronous transmission mode terminal, the server comprising: a first step of analyzing a subscriber shape and service profile when a multi-party communication connection service request is received from a subscriber; A second step of establishing a connection by reserving and allocating resources; A third step of updating a management table and providing a multiparty service; And a fourth step of transitioning to the released state when the service is completed, terminating transmission and reception of subscriber data, and releasing resources, virtual paths, and virtual channels.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to FIGS. 1 to 5.

Multi-party communication service is a communication method in which subscribers interactively exchange audio, video and text data in both directions through an asynchronous transmission mode network.

In particular, in order to control a multi-party communication terminal using a plurality of media, call creation, change, and release functions must be dynamically performed, and information about subscribers must be analyzed quickly and accurately.

In addition, the service network is a terminal connected to the asynchronous transmission mode network through the management server, the service is controlled, the terminal and the management server is configured to be directly connected to the asynchronous transmission mode (ATM) network through an asynchronous transmission mode (ATM) adapter card do.

The present invention provides subscriber data by managing the server to reduce the load of the asynchronous transmission mode switching system to communicate between the asynchronous transmission mode terminal and the server to perform service for subscribers who want to provide a multilateral communication service in the asynchronous transmission mode switching system. In addition, it provides software control algorithms for connection, establishment, and release for routing of additional requests or invited subscribers during multi-party communication.

The addressing and routing of the connection establishment / release function between the asynchronous transmission mode exchange system and the asynchronous transmission mode terminal is addressed according to E.164 by signaling in the call control protocol. In case of the service, simple addressing is possible by setting an identifier for allocation in advance.

In other words, addressing and network routing corresponding to service request information can be realized. In addition, routing that provides a route that can be used between originating and terminating terminals uses a fixed routing scheme, and is performed by management of an asynchronous transmission mode server without performing a call control procedure inside the exchange system for routing.

The change of route between originating and terminating terminal is registered and controlled by asynchronous transmission mode server by operator request or by external signal.

The band management of the variable band type is performed in a way that enables the negotiation of band / quality of service when establishing the connection.

It is possible to simplify the signaling procedure by enabling the pre-allocation at the point of time when the quality of service is determined according to the purpose of use.

Therefore, by performing addressing function between asynchronous transmission mode terminal and server, it reduces signaling with exchange and reduces exchange load and efficiently provides data management and service of registered subscriber.

Existing exchange technologies mainly provide services for processing voice and low-speed data, but in the modern society, communication networks in which high-speed communication services including high-speed data communication, still picture, and dynamic picture transmission service are provided according to the development of information communication. In order to satisfy the needs of the communication service, an asynchronous transmission mode switching technique for processing various traffic types is required.

The present invention allocates an appropriate bandwidth to users while satisfying the user's requirement for multi-connection service through an asynchronous transmission mode switch, and asynchronous transmission mode switch system through subscriber registration data management between a terminal and a server for service provision. To reduce the load on the subscriber, the subscriber provides a method for controlling the connection by establishing, releasing, and allocating resources between the asynchronous transmission mode terminal and the server for efficient service provision.

1 is a functional configuration of asynchronous transmission mode terminal and server for a general multi-party communication to which the present invention is applied.

As shown in the figure, the asynchronous transmission mode adapter card 110 is mounted in a terminal and a server, supports an asynchronous transmission mode adaptation layer (AAL) 114, and a signaling protocol for call processing (Signaling Protocol). 113 and an application program interface 111 capable of directly accessing an asynchronous transmission mode device drive to transmit and receive software blocks and messages of the terminal and server.

The application program interface (API) 111 configures an environment so that communication with a service is started by executing an application program to perform a multimedia service function of the terminal.

When the multimedia service control unit 120 is connected to a matching function in a subscriber module of an exchange to perform a multimedia service, the multimedia service control unit 120 is controlled by a subscriber control processor (SCP) mounted in an asynchronous transmission mode exchange system and registered in a server. It performs the semi-permanent virtual connection service control function by sending and receiving call processing function and data according to the table.

Since the call processing function of the exchange system basically processes the signal message data according to the Recommendation of the International Telecommunication Union (ITU-T), the signal processing functions of the terminal and the server are also designed according to the Recommendation of the International Telecommunications Communication (ITU-T). To register the system, analyze the data, the type of service, and the quality of service to provide the configured service, and control the connection establishment / release of the originating terminal and the server through the semi-permanent virtual connection registered in the system. Perform.

The shared memory / state controller 140 performs state management and shared memory management of the terminal.

2 is a flowchart of a control method for multi-party communication of an asynchronous delivery mode terminal according to an embodiment of the present invention.

As shown in the figure, the server is in the state of the non-transmission mode terminal before the subscriber's service request is input (200), in which the multi-party communication connection service request is received from the subscriber (201).

When the service request is received, the registration data is initialized to set up the call (202), and the information is transmitted between the server through the terminal and the exchange system, and the subscriber's registration status, directionality, band used, and registration virtual path identifier (VPI) Basic registration data, such as a virtual channel identifier (VCI), is analyzed (203) and transitioned to a resource reservation / allocation state (204).

In the reserved state, a resource that satisfies the quality of service of a subscriber for establishing a virtual path (VP) / virtual channel (VC) connection is registered and registered in an exchange system, but the asynchronous transmission mode terminal and the virtual path and virtual channel are established. The connection of is in a deactivated state, the service provisioning is a reserved state, the status of the originating and receiving terminal analysis, the connection is activated when the service is started (205).

According to the defined service, the virtual path (VP) / virtual channel (VC) connection is activated so that the user's terminal is connected to the virtual path and virtual channel. When the service is activated, the service table is updated by updating the management table of the call / connection control block. The subscriber manages the status of the subscriber, the band used, and the like (206), and the subscriber transmits and receives the multimedia service (207).

The subscriber may request a bandwidth change depending on whether the service is registered, and when the service is completed, the subscriber transitions to a release state (208) and terminates transmission and reception of subscriber data (209). When the subscriber equipment is switched to the switched-off state and transitioned to the terminated state, or if it needs to be serviced again, the standby state is deactivated.The virtual connection path and channel after the service is terminated and the service is released to the server. It ends (211).

3 is a flowchart illustrating a process of performing a multi-party communication service request and service profile analysis of FIG. 2.

As shown in the figure, when a server receives a service request from a multi-party service request subscriber, when the asynchronous transmission terminal makes a service request to the server through the exchange system (301), the server requests and participates in the management table by the management table. Analyze the registration service (302), determine whether the registration information can be approved (303), if service is available, send a service request message (304) receive a service participation response message (305) and virtual path according to the registration information And reserve (306) a multi-party communication service grant message to the service request / participant (307), transmit (308) and wait (309) the resource allocation message.

In addition, if there are subscribers whose registration information does not match, it is determined whether the subscriber can change the service registration information (310), and if the registration information change counter is smaller than 3 (311), if it is smaller than 3, the registration information change request message is transmitted. In operation 312, the timer is registered in operation 313 to determine whether the waiting time is exceeded in operation 314.

If the waiting time is not exceeded, when the registration information change message is received (315), the registration information change counter is changed (316), and the function such as registration information analysis is performed again (302).

In addition, if the registered information change subscriber or the waiting time is exceeded, the service and the reason and transmits (317) and ends (318).

The registered service information is provided by the server upon registration or negotiation with the exchange system, and if the analyzed registration information matches the registration information between the user-network interface (UN) between origination and destination, the service is activated. It is possible.

FIG. 4 is a flowchart illustrating a process of performing addition and invitation multi-party service request and service profile analysis of FIG. 2.

As shown in the figure, when the additional participation request message is received (401), the registration data of the additional participation request subscriber is analyzed (402) to determine whether the subscriber registration shape is normal (403) and held if the subscriber shape is normal. The server sends an additional participation service approval request message (404).

Upon receiving the additional participation service approval request message, the organizer determines whether to approve the participation (405), and transmits an additional participation approval response in the case of participation approval, and notifies the participation approval in the case of no participation approval.

When the server receives the additional participation approval response from the host (406), it transmits the information of the additional participating subscribers to the subscriber in the multilateral communication service (407), allocates resources such as virtual path and bandwidth according to the service (408), and manages the management table. It updates (409) and performs a service connection establishment function to notify that the connection establishment has been made to start communication with the additional participant (410) and waits.

When an invitation request by the host occurs (411), the server analyzes the registration data of the subscriber to be invited (412) and determines whether the registration shape of the invited subscriber is normal (413). If the subscriber is in service, the invited subscriber information is transmitted (407), and if the registration configuration is abnormal, it is notified that addition, invitation is impossible (414) and waits while maintaining the existing service.

FIG. 5 is a flowchart illustrating a service release and withdrawal process of FIG. 2.

As shown in the figure, when the service termination request is received from the subscriber (501), the server determines whether it is a service release request received from the host (508), if it is a release request message from any participating subscriber other than the service owner. Is notified to the host that the request to withdraw from the service has been received (502), and when the withdrawal approval response message is received from the organizer (503), the service subscriber is informed of the withdrawal subscriber's information and service release (504). After notifying of the setting and resource release (505) and releasing the resource and updating the management table (506), the service of another service participant waits for maintenance (507).

However, in the case of a request from the organizer, after notifying each participating subscriber of the termination of service connection (509), after notifying call setup and resource release (510), after releasing the occupied resources and updating the management table (511), all services are terminated. (512).

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains, and the above-described embodiments and accompanying It is not limited to the drawing.

The present invention as described above, it is possible to provide a variety of services while minimizing the software changes in the terminal, and the compatibility between the terminal and the server can be applied to a connection form that is supported in various forms when matching with the switch by performing a complementary function In addition, due to the nature of the asynchronous transmission mode exchange, there is an effect of performing a multi-party multimedia service while controlling the exchange load by simultaneous multiple band allocation.

Claims (5)

A control method for multi-party communication of an asynchronous transmission mode terminal, A first step of the server analyzing the subscriber shape and the service profile when a multi-party communication connection service request is received from the subscriber; A second step of establishing a connection by reserving and allocating resources; A third step of updating a management table and providing a multiparty service; And Transitioning to the released state when the service is completed, terminating transmission and reception of subscriber data and releasing resources, virtual paths, and virtual channels Multi-party service providing method to the asynchronous delivery mode terminal by the server made, including. The method of claim 1, The first step is, A fifth step of analyzing, by the server, registration data of the additional participation request subscriber when the additional participation request message is received; A sixth step of checking whether the subscriber registration shape is normal; A seventh step of sending an additional participation service approval request message to the host if the subscriber configuration is normal; An eighth step of determining whether to accept the participation when the organizer receives the additional participation service approval request message; In the case of participation approval, a ninth step of transmitting an additional participation approval response; A tenth step of notifying the participation approval if the participation is not approved; And When the server receives the additional participation approval response from the host, the eleventh step of transmitting the additional participating subscriber information to the subscriber in the multi-party communication service The multilateral service providing method to the asynchronous transmission mode terminal by the server made, including. The method of claim 1, The second step, A fifth step of analyzing subscriber registration information; A sixth step of checking whether the registration information can be approved; And A seventh step of transmitting a service request message and receiving a service participation response message if the service is available; Multi-party service providing method to the asynchronous delivery mode terminal by the server made, including. The method of claim 1, The third step, A fifth step of allocating and reserving a virtual path and bandwidth according to the registration information and transmitting a multi-party communication service approval message to service request / participants; A sixth step of transmitting a resource allocation message; A seventh step of establishing a connection; If there is a subscriber whose registration information does not match, an eighth step of checking whether the subscriber can change the service registration information; A ninth step of checking a registration information change counter; A tenth step of transmitting a registration information change request message and registering a timer; An eleventh step of checking whether the earth timed out; And If the waiting time is not exceeded, the twelfth step of changing the property change counter and analyzing the property again when a property change message is received. Multi-party service providing method to the asynchronous delivery mode terminal by the server made, including. The method of claim 1, The fourth step, A fifth step of checking whether the service termination request is received from the subscriber or not; A sixth step of notifying the host that the withdrawal of the service request has been received in the case of the release request message from any participating subscriber who is not the service organizer; A seventh step of notifying the service participating subscriber of the withdrawal subscriber's information and service release upon receiving the withdrawal approval response message from the organizer; An eighth step of notifying the withdrawal subscriber of call establishment and resource release; Ninth step of releasing the resource and updating the management table; A tenth step of notifying each participating subscriber of termination of service connection in case of a request from the organizer; An eleventh step of notifying of call establishment and resource release; And Twelfth step to release occupied resources and update management table The multilateral service providing method to the asynchronous transmission mode terminal by the server made, including.

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