KR20030052646A - Method of multi-connecting in instant messenger service by multicasting - Google Patents

Abstract

PURPOSE: A multi-point connection method of an instant messenger service using a multi-casting is provided to reduce a load of a messenger server by allocating a multi-cast address to a user who requests a multi-point connection using a multi-casting system. CONSTITUTION: A user connected to an instant messenger checks whether other user is connected for a multi-point connection(S101), and transmits a multi-point connection request message to a messenger server(S102,S103). The messenger server informs the multi-point connection request to the other user and waits an acceptance(S104). The other user accepts the multi-point connection request, the messenger server allocates a multi-cast IP address capable of executing a multi-point connection and informs the multi-cast IP address to the user and the other user(S107). The user and the other user start a multi-point connection through the multi-cast IP(S108). During the multi-point connection, the user terminates the connection(S109) and transmits a connection termination message to the messenger server(S110). The messenger server checks whether the last user of the multi-point connection terminates the connection(S111). If the last user of the multi-point connection terminates the connection, the multi-cast IP address is released(S112).

Description

Multi-connecting method of instant messenger service using multicasting {Method of multi-connecting in instant messenger service by multicasting}

The present invention relates to an instant messenger service, and more particularly, to a multi-party access method of an instant messenger service using multicasting to minimize the load of a messenger server and to enable multi-party access and data transmission.

The instant messenger service is a service that can send and receive messages in real time while connected to the Internet, and provides various functions such as file and video transmission and text message transmission as well as simple conversation.

This instant messenger service has the same speed, accuracy and real time as a telephone. Therefore, it is expected that the business model targeting the general netizens is rapidly being made out of personal functions, and it is expected to greatly affect the Internet business in the future.

1 is a block diagram illustrating a configuration of a communication system for an instant messenger service.

Referring to FIG. 1, for an instant messenger service, user computers 11 to 16 connected to routers 21 and 22 through an internet network 30, a messenger server 50 for messenger services, and each user messenger When accessing the server 50 to use the messenger service, the server 50 includes an address management server 40 having ID information and address information assigned to each user computer 11 to 16.

The user computers 11 to 16 are connected to the Internet network 30 and connected by using the address information given to the messenger server 50, and use one-to-one or multi-party access to talk or send and receive files. The multi-party connection and data transmission and reception are performed in the same order as in FIGS. 2 and 3.

2 is a flowchart illustrating an operation procedure for a multi-party connection of a conventional instant messenger service, and FIG. 3 is a flowchart illustrating a data transmission operation procedure in a multi-party connection of a conventional instant messenger service.

Referring to FIG. 2, assuming that User 1 11 attempts a multi-party connection between User 2 13 and User 3 14 as an embodiment of the present invention, User 1 11 first establishes an Internet network 30. The user accesses the messenger server 50 through the communication server 50 and checks whether the user 2 13 and the user 3 14 are connected (S11), and transmits a multi-party connection request message to the messenger server 50 (S12). At this time, the multi-party connection request message includes address information of the user 2 (13) and the user 3 (14) to be connected.

In response to the multi-party connection request message, the messenger server 50 transmits a multi-party connection request message from user 1 to users 2 and 3 (13 and 14) (S13), and asks whether to accept the multi-party connection (S14).

If the user 2, 3 (13, 14) refuses to access the notification to the user 1 (11), if accepting a separate messenger server and the user 1, 2, 3 (11, 13, 14) for multi-party access One-to-one connection is made (S16). That is, in addition to the connection with the existing messenger server 50, a one-to-one connection is made.

The messenger server 50 regards a connection for a multi-party connection with the users 1, 2, 3 (11, 13, 14) as a group and connects each other to manage a conversation and data transmission between users ( S17).

The messenger server 50 manages a connection as a group and manages a multi-party connection between users 1,2 and 3 (11, 13, 14), and starts a conversation and data transmission and reception (S18).

In particular, when the user 1 (11) wants to transmit data to the user 2, 3 (13, 14) after the multi-party connection is made, first transmit the data to be transmitted to the messenger server 50 as shown in FIG. S21).

The messenger server 50 transmits the data received from the user 1 (11) to the user 2 (13) (S22), and when the transmission is complete (S23), and transmits to the user 3 (14) (S24), The data is transmitted (S25). That is, the data received from the user 1 (11) is sequentially transmitted to the user 2 (13) and the user 3 (14) grouped by the multi-party connection.

However, when the multi-party connection is performed as in the related art, since the multi-party connection is actually managed one-to-one through each messenger server and then managed as a group, in the messenger server, as the number of users increases, the load for maintaining the connection increases, and Even once the data is transmitted to the messenger server and then transmitted to other users, the concentration of the data on the messenger server may occur, causing a bottleneck.

In addition, the messenger server receiving the data repeatedly transmits the same data to each user, resulting in resource waste.

In order to solve the above problems, the present invention uses a multicasting scheme to arbitrarily assign a multicast address to a user requesting a multilateral connection, thereby making a multi-party connection by accessing each other through the assigned address to load a messenger server. It provides a multi-party access method of instant messenger service using multicasting to reduce the resources used by sending to the other party without sending a messenger server in data transmission and reception, and to transmit data more quickly. There is a purpose.

1 is a block diagram showing a configuration of a communication system for an instant messenger service.

2 is a flowchart illustrating an operation procedure for a multi-party connection of a conventional instant messenger service.

3 is a flowchart illustrating a data transmission operation procedure in a multi-party connection of a conventional instant messenger service.

4 is a flowchart illustrating an operation procedure of a multi-party access method of an instant messenger service using multicasting according to an exemplary embodiment of the present invention.

The multi-party access method of the instant messenger service using multicasting according to the present invention,

Confirming, by an arbitrary user who is accessing the instant messenger, whether or not a counterpart user wants the multi-party connection and transmitting a multi-party connection request message to the messenger server;

Informing the counterpart user of a multi-party connection request from the messenger server and waiting for acceptance;

The counterpart user accepting a multilateral access request, allocating a multicast IP address for enabling multiparty access at a messenger server, and notifying the user and the counterpart user of the multicast IP address;

And initiating a multi-party connection by accessing the multicast IP where the user and the counterpart user are notified.

Preferably, the user terminates the connection during the multi-party connection, and transmitting the connection termination message to the messenger server;

Confirming, by the messenger server, whether the last user of the multi-party connection has terminated the connection;

As a result of the confirmation, the last user terminates the connection, characterized in that configured to include the step of releasing the multicast IP address.

The multi-party access method of the instant messenger service using multicasting according to the present invention configured as described above will be described in detail with reference to the accompanying drawings.

4 is a flowchart illustrating an operation procedure of a multi-party access method of an instant messenger service using multicasting according to an exemplary embodiment of the present invention.

In addition, a multi-party connection between the user 1 (11), the user 2 (13), and the user 3 (14) of FIG. 1 showing the configuration of the instant messenger will be described as an example.

1 and 4, the user 1 (11) checks whether the user 2 or 3 (13, 14) who wants to have a multilateral connection is connected (S101), and the user 2, 3 (13) is connected to the messenger server 50. , 14) and transmits a multi-party connection request message (S102).

The messenger server 50 transmits a multi-party access message to the user 2, 3 (13, 14) (S103), and asks whether to accept (S104), if the user 1, 2, 3 (11, 13, 14) The multicast IP address is allocated to enable multi-party connection (S106), and the users 1, 2, 3 (11, 13, 14) are notified (S107).

In this case, the multicast IP address is allocated by the messenger server 50 by using a session announcement protocol (SAP) / session description protocol (SDP) to receive a multicast address from an IANA (Internet Number Assignment Management Institution), Each IP address will be managed.

The user 1, 2, 3 (11, 13, 14) receiving the multicast IP address information as described above connects to the corresponding IP address and performs a multi-party connection to communicate and transmit and receive data (S108).

As described above, when the user 1 terminates the connection using the multi-party connection (S109), the message for the connection termination is transmitted to the messenger server 50 (S110).

According to the received termination message, the messenger server 50 checks whether the user who sent the current connection termination is the last user of the multi-party connection connected to the multicast IP address (S111). Delete (S112).

The following is an example of the algorithm of the instant messenger service method that operates as described above.

First, the operation of the instant messenger server is as follows.

Instant_Messenger_Sever_Main ()

.... while (1)

... if (multiple connection request reception)

... requests multicast address allocation from IIAN;

Send the assigned address to the multi-party access participants;

Keep the number of participants connected; ...

... if (multiple connection termination received)

... decrease the number of participants by 1;

... if (end all multiuser users)

... freeing the assigned multicast address;

Notify the IANA of the end of use of the address;

.........

In addition, the operation of the user of the instant messenger is as follows.

Instant_Messenger_Client_Main ()

... while (1)

... if (multiple connection request)

... request the server for multi-party access with the selected user information;

Assigned a multicast address from the server;

Join by multicast address;

.... while (1)

... if (multiple connection termination)

... Leave at multicast address;

Notify the server of the end of the multiparty connection;

...............

As described above, the messenger server allocates and releases a multicast IP address, and the user transmits a message according to a connection request and termination to the messenger server.

As described above, in the multicast connection connected by multicast, when data is transmitted to a multicast address, data is simultaneously transmitted to a user connected to the multicast IP address, so it is inconvenient to copy the data several times. It can reduce the waste of resources.

As described above, in the multi-party connection method of the instant messenger service using the multicasting according to the present invention, a messenger-driven conventional multi-party connection is used to establish a one-to-one connection for each user and a multi-party connection, and group each connection as a group. It manages to make multi-party connection, and assigns multicast IP address for multi-party connection from messenger server and provides multicast address for each group to create multi-party access group separately from messenger server to talk or send files. When the connection is terminated, the messenger server releases and manages the multicast IP address, thereby reducing the load concentrated on the messenger server, and reducing the waste of resources by reducing redundant data transmission.

Claims (2)

Confirming, by an arbitrary user who is accessing the instant messenger, whether or not a counterpart user wants the multi-party connection and transmitting a multi-party connection request message to the messenger server; Informing the counterpart user of a multi-party connection request from the messenger server and waiting for acceptance; The counterpart user accepting a multilateral access request, allocating a multicast IP address for enabling multiparty access at a messenger server, and notifying the user and the counterpart user of the multicast IP address; And accessing the multicast IPs notified by the user and the counterpart user to initiate a multi-party connection. The method of claim 1, further comprising: ending a connection by the user during the multi-party connection, and transmitting a connection termination message to a messenger server; Confirming, by the messenger server, whether the last user of the multi-party connection has terminated the connection; And confirming that the last user terminates the connection, and releases the multicast IP address.