KR101015007B1 - Method and system for providing instant messaging service - Google Patents

Abstract

Provided are a method and a system for providing an instant messaging service in an IP multimedia subsystem. In one embodiment of the present invention, a method for providing an instant messaging service in an IP multimedia subsystem may include receiving an instant messaging connection request message from a first user device to a plurality of second user devices, wherein the plurality of second user devices are provided. Transmitting a connection request message to the client; receiving a response message from the plurality of second user devices; establishing a session with each of the plurality of second user devices; establishing a session with the first user device; Receiving a subscription message informing that the session is being instant messaging from each connected user device, and relaying the instant message between the first user device and the plurality of second user devices through an established session. .

IP Multimedia Subsystem (IMS), Instant Messaging Service

Description

Method and system for providing instant messaging service in IP multimedia subsystem {Method and system for providing instant messaging service}

The present invention relates to an IP multimedia subsystem, and more particularly, to a method and a system for providing an instant messaging service in an IP multimedia subsystem.

Recently, with the rapid development of mobile communication and the Internet, it is required to realize various multimedia services of high quality for mobile subscribers. The development of the Internet multimedia service required a change from a conventional circuit-based core network to a packet-based core network, and furthermore, a next-generation core network in the form of an IP-based core network ( Core network).

Currently, 3GPP is standardizing ALL IP-based network reference model to provide IP-based Multimedia Service. IP-based multimedia service refers to a service that can simultaneously provide various types of packet-based services based on IP transport protocol to mobile subscribers, which is a real-time service such as voice and video. Of course, this means that non-real-time services such as file transfer, e-mail, and short message can be used simultaneously, or new services using these services can be used.

As a key technology for providing new services in such an All-IP based communication environment, an IP Multimedia Subsystem (hereinafter referred to as IMS) is defined to provide various services to subscribers based on an ALL-IP network. Is attracting attention. The IMS network standardized the ALL-IP reference model and accommodated various gateway functions with various interface schemes, and standardized interface schemes and protocols with other functional elements related to them by linking with IETF. The IMS network is divided into a control layer that provides a session control function based on a packet service domain, a user layer that provides traffic, and an application layer that provides a service function.

Instant messaging is a service that realizes two-way communication in cyberspace, such as one-on-one conversation, chat, and group composition, checking if the other party is connected to the Internet, sending and receiving messages in real time. Since its inception in 1997 by AOL in the United States, instant messaging services have been competitively distributed by major portals, gaining popularity among users. The rapid expansion of the instant messenger market has been facilitated by the rapid establishment of an environment where Internet access is always available, such as high-speed communication networks.In recent years, improvements have been made to provide various Internet contents such as file video transmission, Internet phone, mobile phone text messaging, and news music. The scope of use is being expanded. Currently, the instant messenger population has exceeded 100 million, and in Korea, more than 40% of the Internet use population is using instant messengers, and the population is expected to increase further.

An object of the present invention is to provide a method and system for providing instant messaging service in an IP multimedia subsystem.

The object of the present invention is not limited to the above-mentioned object, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the instant messaging service providing method in the IP multimedia subsystem according to an embodiment of the present invention, receiving an instant messaging connection request message from a first user device to a plurality of second user devices (a) (B) transmitting the connection request message to the plurality of second user devices, receiving a response message from the plurality of second user devices, and establishing a session with the plurality of second user devices, respectively (c). Step (d) of establishing a session with the first user device, receiving a subscription message indicating that the session is in an instant messaging mode from each connected user device, and (e) (F) relaying an instant message between the first user device and the plurality of second user devices.

In addition, the instant messaging service providing method in the IP multimedia subsystem according to an embodiment of the present invention, receiving an instant messaging invitation message from the first user device that is connected to the second user device to the third user device (a Step (b) sending the invitation message to the third user device, receiving a response message from the third user device and setting up a session (c), the first user device and the second user (D) transmitting an invitation completion notification message to a device, and (e) relaying an instant message between the first user device, the second user device, and the third user device through the established session. .

In the IP multimedia subsystem according to an embodiment of the present invention, the instant messaging service providing system includes a connection unit for relaying an instant messaging connection message from a first user device to a plurality of second user devices, the first user device and the plurality of connection devices. A session setting unit configured to establish a session with each of the second user apparatuses of the message; and a message transmitting unit configured to relay an instant message between the first user apparatus and the plurality of second user apparatuses through the set session. Is characterized by receiving a subscription message informing that the session is being instant messaging from each of the established user devices.

In addition, the instant messaging service providing system in the IP multimedia subsystem according to an embodiment of the present invention, relays an instant messaging invitation message from the first user device to the third user device in an instant messaging connection with the at least one second user device. Relaying an instant message between the first user device, the respective second user device, and the third user device through a connection unit for transmitting, a session setting unit for establishing a session with the third user device, and the set session; And a message transmission unit.

Specific details of other embodiments are included in the detailed description and the drawings.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, and only the embodiments make the disclosure of the present invention complete, and the general knowledge in the art to which the present invention belongs. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, the present invention will be described with reference to the drawings for explaining the instant messaging service providing method and system in the IP multimedia subsystem according to embodiments of the present invention.

1 is a diagram illustrating a system for providing instant messaging service in an IP multimedia subsystem according to an exemplary embodiment of the present invention.

The instant messaging service providing system in the IP multimedia subsystem according to an embodiment of the present invention includes an instant message agent including a connection unit 101, a session establishment unit 102, and a message transmitter 103, and an IMS system. A scheme server 104, a service CSCF 105, and a proxy CSCF 106. In addition, they are connected to the user devices 109 and 110 via the packet data network 107 and the wireless network 108.

The user devices 109 and 110 are a plurality of terminals located in a communication area divided and allocated in sector units. In the embodiment of the present invention, a cellular phone, a personal communication service (PCS) phone, on which a 3GPP SIP-based module is mounted, This includes PDA phones, GSM phones, CDMA-2000 phones, WCDMA phones, DMB phones, and so on. The wireless network 108 includes a Node-B and a base station controller (RNC), and the packet data network 107 is located at an end of an access network and is an access network for transmitting packet data to a user device, such as GPRS, WCDMA, or CDMA. It may be an IP capability access network (IP-CAN).

According to the present invention, a user device requesting an instant messaging service is a first user device, a user device targeted for the instant messaging service request is a second user device, and a first user device and a second user device use an instant messaging service. The user device receiving an invitation request during the process is defined as a third user device.

The user equipment receives a signal transmitted from the wireless network 108 in a serving cell of the wireless network 108 and wirelessly transmits a signal according to voice or data input from the subscriber through the base station. To transmit. The wireless network 108 transmits a signal received from a user device included in the corresponding service cell to the packet data network 107 connected to the wired network, and wirelessly transmits a signal received from each packet data network 107. To a user device included in the corresponding service cell. That is, the wireless network 108 allocates or releases a radio channel for the user equipment included in the service cell, and handles handoff to ensure the mobility of the user equipment. In addition, the wireless network 108 converts an analog signal received from a user device included in a service cell into a digital signal that can be transmitted to an E1 / T1 level line, and transmits the signal to a packet data network 107 connected to a wired network. The digital signal received from the data network 107 is converted into an analog signal that can be transmitted wirelessly and transmitted to the user device.

In addition, the packet data network 107 converts a signal received from the wireless network 108 into an IP packet and transmits it to the IMS, and converts an IP packet transmitted from the IMS into a signal and transmits the signal to the wireless network 108. The IMS then provides the integrated service to the user device according to the received IP packet.

The CSCF may perform basic functions for session initiation protocol (SIP) based session control, such as subscriber registration, authentication, service triggering, routing, various call control, and address handling. Since the Call Session Control Function (CSCF) performs different functions depending on the network in which the subscriber is located, the Proxy-CSCF (P-CSCF) and the interrogating-CSCF (I-CF) are based on the location and role. CSCF), and service CSCF (Serving-CSCF; S-CSCF).

In the present invention, it is assumed that the user equipment has completed the registration procedure in the IMS system through the proxy CSCF 106, the inquiry CSCF (not shown), and the service CSCF 105. Accordingly, in the present invention, a message transmitted between an instant messaging agent and a user device, which is a kind of application server using the SIP protocol, is relayed through the proxy CSCF 106 and the service CSCF 108.

In addition, the scheme (Service Capability Interaction Manager) server 104 is a broker that manages the interaction between other application servers. Therefore, it is possible to relay and manage messages transmitted and received between the service CSCF 105 and the application server.

The connection unit 101 transmits and receives a message using the SIP protocol transmitted from the user device (109, 110). A message INVITE is received from the first user device to request an instant messaging connection, and the message is reconfigured and relayed to the second user device which is the target of the connection. Alternatively, a message REFER for requesting an instant messaging invitation is received from the first user device, and a message INVITE for requesting an instant messaging connection is reconfigured and transmitted to a third user device which is the target of connection. Since the message transmitted and received with the user device through the connection is a message using the SIP protocol, the proxy CSCF 106, the service CSCF 105 and the scheme server 104 relays and transmits the message.

The session establishment unit 102 establishes a session connection with the user device after receiving the response message (ACK) from the user device that has received the message (INVITE) requesting the instant messaging connection request.

The message transmitter 103 may relay an instant message using a Message Session Relay Protocol (MSRP) through a session established with the user device, or may relay an instant message through a MESSAGE method of SIP.

2 is a flowchart illustrating a method for providing a 1: 1 instant messaging service in an IP multimedia subsystem according to an embodiment of the present invention.

The first user device that has already completed the registration procedure with the IMS system transmits a message to the connection unit 101 to request an instant messaging connection with the second user device (S201). The message includes an identifier of an instant messaging agent that has an INVITE method and includes the connection as a response identifier (URI), an identifier of a first user device, and session information for MSRP use. This is to receive an instant messaging service through the instant messaging agent. The message includes an identifier of a second user device that is the target of an instant messaging connection as a message body. In this case, in order to increase the efficiency of processing and transmitting the message, the data may be configured in SDP and XML format, respectively.

The connection unit 101 receiving the message transmits a connection message (INVITE) including the identifier of the second user device included in the message as a SIP identifier to the second user device (S202). The second user device returns a "180 Ringing" and "200 OK" message to the connection unit 101 in response (S203). At this time, a session for transmitting and receiving instant messages is established between the session establishment unit 102 included in the instant messaging agent and the second user device. The connection unit 101 receiving the response message transmits the " 180 Ringing " and " 200 OK " messages to the first user device, and the session setting unit 102 performs a session for transmitting and receiving an instant message with the first user device. Is set (S204).

As a next process, the first user device and the second user device transmit a SUBSCRIBE message including a conference event to the connection unit 101 to inform that they are chatting (S205, S206).

Since the message transmission unit 103 has a session for transmitting and receiving instant messages with the first user device and the second user device, respectively, the message transmission unit 103 uses the Session Session Protocol (MSRP) or the SIP MESSAGE method to send an instant message. Relay transmission is performed (S207, S208).

3 is a flowchart illustrating a method for providing a 1: n instant messaging service in an IP multimedia subsystem according to an embodiment of the present invention.

The embodiment shown in FIG. 3 differs from the embodiment shown in FIG. 2 in that the second user device is a plurality of lists.

The first user device constructs an INVITE message that includes the identifiers (URIs) of the plurality of second user devices for which the instant messaging connection is desired, the message comprising a proxy CSCF 106, a service CSCF 105, and a scheme server 104. It is transmitted to the connection unit 101 through (S301). The message includes an identifier of an instant messaging agent that has an INVITE method and includes the connection as a response identifier (URI), an identifier of a first user device, and session information for MSRP use. This is to receive an instant messaging service through the instant messaging agent. The message includes a plurality of identifiers of a plurality of second user devices that are subject to an instant messaging connection as a message body. In this case, in order to increase the efficiency of processing and transmitting the message, the data may be configured in SDP and XML format, respectively. The connection unit extracts identifiers of the plurality of second user apparatuses included in the message and transmits an INVITE message to each second user identifier (S302 and S303).

Each second user device immediately responds to the connection with the " 180 Ringing " and " 200 OK " message (S304, 305), and the session establishment unit 102 transmits and receives an instant message with the second user device. Set up a session to do this. The connection unit 101 receiving all response messages from each of the second user devices transmits the " 180 Ringing " and " 200 OK " messages to the first user device (S306), and the session establishment unit 102 receives the first message. Set up a session for sending and receiving instant messages with a user device.

As a next process, the first user device and each second user device transmits a SUBSCRIBE message including a conference event to the connection unit 101 to inform that the user is chatting (S307 and S308).

Since the message transmission unit 103 has a session for transmitting and receiving instant messages with the first user device and each second user device, respectively, the message transmission unit 103 uses a message session relay protocol (MSRP) or a MESSAGE method of SIP. Relay transmission of the instant message (S309, S310, S311).

4 is a flowchart illustrating a method for providing an instant messaging third party invitation service in an IP multimedia subsystem according to an exemplary embodiment of the present invention.

The embodiment shown in FIG. 4 compares the embodiment shown in FIG. 3 with the request of the first user device while the first user device and the second user device are already using the instant messaging service (S401, S402). The difference is that the user device is invited. The second user device may be plural.

The first user device transmits a REFER message including the identifier of the third user device to be invited to the connection unit 101 through the proxy CSCF 106, the service CSCF 105, and the scheme server 104 (S403). In this case, the data included in the message may be configured in XML format in order to increase the efficiency of processing and transmitting the message. The connection unit extracts the identifier of the third user device included in the message and transmits an INVITE message to the third user identifier (S404). The message has an INVITE method and includes an identifier of the first user device and session information for MSRP use. In this case, in order to increase the efficiency of processing and transmitting the message, the data may be configured in SDP format.

The third user device immediately returns a "180 Ringing" and "200 OK" message to the connection unit (S405), and the session establishment unit 102 establishes a session for transmitting and receiving an instant message with the third user device. Set it. The connection unit 101 receiving the response message from the third user device transmits a NOTIFY message indicating that the third user device is ready to the first user device and the at least one second user device (S407 and S408).

As a next procedure, the third user device transmits a SUBSCRIBE message including a conference event to the connection unit 101 to inform that the user is chatting.

Since the message transmitting unit 103 has a session for transmitting and receiving instant messages with the first user device, the at least one second user device, and the third user device, respectively, the MSRP (Message Session Relay Protocol) or the SIP is transmitted through the session. The instant message is relayed using the MESSAGE method of S409, S410, and S411.

Those skilled in the art will appreciate that the present invention can be embodied in other specific forms without changing the technical spirit or essential features of the present invention. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is indicated by the scope of the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalent concept are included in the scope of the present invention. Should be interpreted.

1 is a diagram illustrating a system for providing instant messaging service in an IP multimedia subsystem according to an exemplary embodiment of the present invention.

2 is a flowchart illustrating a method for providing a 1: 1 instant messaging service in an IP multimedia subsystem according to an embodiment of the present invention.

3 is a flowchart illustrating a method for providing a 1: n instant messaging service in an IP multimedia subsystem according to an embodiment of the present invention.

4 is a flowchart illustrating a method for providing an instant messaging third party invitation service in an IP multimedia subsystem according to an exemplary embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

101: connection unit 102: session setting unit

103: message transmission unit

Claims (11)

(A) receiving an instant messaging connection request message from the first user device to the plurality of second user devices; (B) transmitting the connection request message to the plurality of second user devices; (C) receiving a response message from the plurality of second user devices and establishing a session with each of the plurality of second user devices; (D) establishing a session with the first user device; (E) receiving a subscription message from each user device to which the session is connected informing that the user is in an instant messaging; And (F) relaying an instant message between the first user device and the plurality of second user devices via the established session. delete The method of claim 1, The step (f) includes the step of relaying an instant message between the first user device and the plurality of second user devices using a Message Session Relay Protocol (MSRP) through the established session. How to provide instant messaging services in your system. The method of claim 1, The instant messaging connection request message includes an identifier (URI) of the plurality of second user devices, And the data included in the instant messaging connection request message is configured in a Session Description Protocol (SDP) format or an eXtensible Mark-up Language (XML) format. (A) receiving an instant messaging invitation message from the first user device that is in an instant messaging connection with the second user device to the third user device; (B) sending the invitation message to the third user device; (C) receiving a response message from the third user device and establishing a session; (D) transmitting an invitation completion notification message to the first user device and the second user device; And (E) relaying an instant message between the first user device, the second user device, and the third user device through the established session. The method of claim 5, And receiving a subscription message from the third user device, the subscription message informing that the user is in the middle of instant messaging. The method of claim 5, The step (e) includes the step of relaying an instant message between the first user device, the second user device, and the third user device using a Message Session Relay Protocol (MSRP) through the established session. How to provide instant messaging service in multimedia subsystem. The method of claim 5, The second user device comprises at least two user devices, (D) sending an invitation completion notification message to the first user device and each second user device; And The step (e) comprises the step of relaying an instant message between the first user device, the respective second user device and the third user device via the established session. How messaging services are provided. A connection unit for relaying an instant messaging connection message from the first user device to the plurality of second user devices; A session establishment unit configured to establish a session with the first user device and the plurality of second user devices, respectively; And And a message transmitter configured to relay and transmit an instant message between the first user device and the plurality of second user devices through the set session. And the connection unit receives a subscription message indicating that the session is being instant messaging from each of the established user devices. 10. The method of claim 9, And a scheme server for relaying and transmitting a message transmitted and received between the connection unit, the setting unit, and the respective user devices. And the connecting unit and the setting unit transmit and receive a message to and from each of the user devices through a scheme server. A connection unit for relaying an instant messaging invitation message from the first user device in an instant messaging connection with the at least one second user device to the third user device; A session establishment unit establishing a session with the third user device; And And a message transmitter configured to relay an instant message between the first user device, each second user device, and the third user device through the established session.

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