KR101039555B1 - Presence service providing terminal, a presence service providing system including the same and a method of providing the same - Google Patents

Abstract

The present invention includes a terminal capable of wired and wireless data communication and storing a presence service application; An XML document management server storing XDMS information of the terminal and a new identifier of the XDMS information; A presence server that stores state information of buddies included in the XDMS information; And a resource list server for generating the presence information obtained by combining the new identifier and the state information and transmitting the generated presence information to the terminal, wherein the terminal selectively accesses the XML document management server using the new identifier and changes the XDMS. Provide a presence service providing system for receiving information.

Description

Presence service providing terminal, presence service providing system including the same and method for providing the same {PRESENCE SERVICE PROVIDING TERMINAL, PRESENCE SERVICE PROVIDING SYSTEM INCLUDING THE SAME AND PROVIDING METHOD THEREOF}

The present invention relates to a presence service providing system. In particular, the terminal providing the presence service (presence service) to the presence of the presence information (extendsible markup language document management server) in the process of receiving information to change the information of the data network The present invention relates to a presence service providing terminal for reducing traffic, a presence service providing system including the same, and a method of providing the same.

As the Internet is becoming more common, technologies are being developed to service voice calls, which were previously serviced through wired telephone networks, through data networks.

An advantage of a voice call over a data network is that it is easy to communicate by combining a voice call and a data packet.

That is, since both voice and data use the same data network, the network operator can reduce the equipment installation and management costs of the network, and the user can save the communication cost by using the communication technology in the data network. .

However, the absence of the other party in a voice call that emphasizes real-time gives the user the inconvenience of having to redial a number of times.

Therefore, in order to increase the success rate of the call, the necessity of a service for confirming the presence and location of the other party is emerging, and accordingly, a presence service that informs the user of network access and status information is required for a new communication service request. It has emerged as a satisfying infrastructure service.

Presence service informs user information, buddy information, buddy rule information, and buddy status information between the user and the buddy (buddy, presentity) registered by the user, thereby making voice over internet protocol (VoIP) and video call. And instant messaging services can be provided more efficiently, and users can quickly and easily understand the status of buddies.

By the way, in the presence service providing system, users and buddies can access the data network with various types of terminals, and the data network access method of the users and buddies can be changed at any time. XDMS information including buddy rule information and the like must be transmitted from the XDMS every time according to a predetermined rule, which will be described with reference to the accompanying drawings.

1 is a diagram of a conventional presence service providing system.

As shown in FIG. 1, the conventional presence service providing system 10 includes the first to third terminals 20, 30, and 40 and the XDMS 50 of the data network 60.

Here, the first to third terminals 20, 30, and 40 are each provided with the presence service by accessing the data network 60. In order to receive the presence service, the first to third terminals 20, 30, and 40 are provided. Each needs XDMS information including its own user information, buddy information and buddy rule information.

The XDMS information is stored in the XDMS 50 in the form of an extensible markup language (XML) document, and when a change such as registering a buddy, deleting a buddy, changing a buddy, or blocking a buddy occurs, it is updated and stored as new XDMS information.

In addition, since a single number may be used by a plurality of terminals, the user should access the XDMS 50 periodically at a specific time to check whether the XDMS information has changed.

For example, when a user of each of the first to third terminals 20, 30, and 40 turns on the terminal or executes a presence service related application, each terminal is connected to the XDMS 50. Access to receive XDMS information including user information, buddy information and buddy rule information.

However, in such a conventional presence service providing system, even when the XDMS information is not changed, the terminal accesses the XDMS to receive the XDMS information, thereby increasing the traffic of the data network and causing a communication failure.

The present invention is to solve the above problems, by including the information about whether the XDMS information is changed in the presence information sent to the terminal to receive the XDMS information only when there is a change in the XDMS information, the data network It is an object of the present invention to provide a presence service providing terminal, a presence service providing system including the terminal, and a presence service providing method in which traffic is reduced and communication failure is prevented.

In order to achieve the above object, the present invention is a terminal capable of wired and wireless data communication and storing the presence service application; An XML document management server storing XDMS information of the terminal and a new identifier of the XDMS information; A presence server that stores state information of buddies included in the XDMS information; And a resource list server for generating the presence information obtained by combining the new identifier and the state information and transmitting the generated presence information to the terminal, wherein the terminal selectively accesses the XML document management server using the new identifier and changes the XDMS. Provide a presence service providing system for receiving information.

The presence service providing system transmits a data packet between the XML document management server, the presence server, the resource list server, and the terminal using a session initiation protocol (SIP) or an XML configuration access protocol (XCAP). It may further comprise an IP multimedia subsystem.

The XDMS information may include user information of the terminal, buddy information of the user, and buddy rule information for the presence service, and the status information may be information about a connection state of the buddies.

In addition, the terminal determines whether or not the new identifier and the previous identifier stored, and if it does not match, the terminal accesses the XML document management server receives the changed XDMS information and displays the presence information, If there is a match, the terminal may display the presence information by using the stored XDMS information.

The XDMS information may be in the form of an XML document, and the new identifier may be a key value updated in conjunction with the XDMS information.

On the other hand, the present invention, the XML document management server transmits the XDMS information of the terminal and the new identifier of the XDMS information to the resource list server; Transmitting, by the presence server, status information of buddies included in the XDMS information to the resource list server; Transmitting, by the resource list server, the presence information obtained by combining the new identifier and the state information to the terminal; And a fourth step of the terminal selectively accessing the XML document management server using the new identifier and starting the presence service.

Here, the presence service providing method, before the first step, the terminal (SUBSCRIBE) to apply for the presence information to the resource list server; The method may further include acknowledging (200 OK) the resource list server to the terminal.

The first step may include: requesting, by the resource list server, XDMS information of the terminal to the XML document management server (SUBSCRIBE); Acknowledging (200 OK) the XML document management server to the resource list server; Notifying, by the XML document management server, the XDMS information and the new identifier to the resource list server; The method may further include acknowledging (200 OK) the resource list server to the XML document management server.

The second step may include: requesting, by the resource list server, status information of buddies included in the XDMS information to the presence server (SUBSCRIBE); Acknowledging (200 OK) the presence server with the resource list server; Notifying, by the presence server, the status information to the resource list server; The resource list server may further include acknowledgment (200 OK) to the presence server.

The fourth step may include determining, by the terminal, whether the new identifier matches a previous identifier that has been stored.

If the new identifier and the previous identifier do not match, the terminal may receive the changed XDMS information from the XML document management server.

On the other hand, the present invention, a data management unit for receiving the presence information from the resource list server of the data network, and extracts a new identifier included in the presence information; An application execution unit which executes the presence service application and determines whether the new identifier and the stored previous identifier match each other; It provides a presence service providing terminal including a storage unit for storing the previous identifier.

Here, when the new identifier and the previous identifier match, the application execution unit may display an execution result of the presence service application by using XDMS information corresponding to the previous identifier stored in the storage unit.

If the new identifier and the previous identifier do not match, the data manager receives changed XDMS information corresponding to the new identifier from the XML document management server of the data network, and transmits the changed XDMS information to the application execution unit. The execution unit may display an execution result of the presence service application by using the changed XDMS information.

On the other hand, the present invention includes the steps of the application execution unit to start running the presence service application; Receiving, by the data manager, the presence information from the resource list server of the data network, extracting a new identifier included in the presence information, and transmitting the new identifier to the application execution unit; Determining, by the application executor, whether the new identifier matches a previous identifier stored; The application execution unit provides a method of operating a presence service providing terminal comprising the step of displaying the presence information by using the XDMS information corresponding to the new identifier or the previous identifier.

Here, when the new identifier and the previous identifier match, the application execution unit may display the presence information by using the XDMS information corresponding to and stored in the previous identifier.

If the new identifier and the previous identifier do not match, the operation method of the presence service providing terminal may include the data management unit receiving changed XDMS information corresponding to the new identifier from an XML document management server of the data network. The method may further include transferring the application execution unit, and the application execution unit may display the presence information by using the changed XDMS information.

As described above, in the presence service providing terminal, the presence service providing system including the same, and the method for providing the same, there is a change in the XDMS information by allowing the terminal to check whether the XDMS information is changed using the presence information. Only by selectively accessing the XDMS to receive the XDMS information, there is an advantage that the traffic of the data network is reduced and communication failure is prevented.

1 is a diagram of a conventional presence service providing system.
2 is a diagram illustrating a presence service providing system according to an exemplary embodiment of the present invention.
3 is a diagram illustrating a presence service providing method according to an exemplary embodiment of the present invention.
4A and 4B illustrate XDMS information (US-PROFILE) and state information (PS) of a presence service providing method according to an embodiment of the present invention, respectively.
5 is a diagram illustrating a configuration of a presence service providing terminal according to an embodiment of the present invention.
6 is a diagram illustrating a method of driving a presence service providing terminal according to an embodiment of the present invention;

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

2 is a diagram illustrating a presence service providing system according to an exemplary embodiment of the present invention.

As shown in FIG. 2, the presence service providing system 100 according to an embodiment of the present invention includes a terminal 120, an Internet protocol multimedia subsystem (IMS) 130, and XML document management. IP multimedia subsystem 130, including an XML document management server (XDMS) 140, a resource list server (RLS) 150, and a presence server (PS) 160; ), The XML document management server 140, the resource list server 150, the presence server 160 constitutes a data network 170.

The terminal 120 is a terminal capable of wired and wireless data communication, and uses a data network using protocols such as transmission control protocol (TCP), user datagram protocol (UDP), session initiation protocol (SIP), and XML configuration access protocol (XCAP). (170).

In addition, the terminal 120 is built in at the time of manufacture, or provides a presence service by having a presence service related application (download) by downloading after the manufacture (download).

The IP multimedia subsystem 130 is a system designed to enable wired and wireless IP communication, and includes a call session control function (CSCF) 132, a service capability interaction manager (SCIM) 134, a home subscriber server (HSS) 136, and the like. It includes.

The IP multimedia subsystem 130 is also called an IMS network, and the data of the data network 170 connecting the XML document management server 140, the resource list server 150, and the presence server 160 with the terminal 120. It acts as a packet switch.

The XML document management server 140 is a server that stores and manages XDMS information including XML user information, buddy information of a registered user, buddy rule information, and the like in the form of an XML document.

Here, the buddy information may be stored in the form of a list, and the buddy rule information includes contents related to an operation policy of the presence service, such as whether to allow registered buddies to share the presence information of the user.

The resource list server 150 receives the XDMS information from the XML document management server 140, inquires the presence server 160 of the buddy state included in the XDMS information on the behalf of the terminal 120, and the inquiry result. To the terminal 120 as the presence information.

The presence server 160 stores the status information of all buddies and transmits the status information of the buddies included in the corresponding XDMS information to the resource list server 150 in response to the inquiry of the resource list server 150.

Here, the buddy's status information may be connected to the buddy's data network 170, for example, online, idle, away, busy, meal, Information about meetings, lessons, etc.

In the presence service providing system 100, a method of transmitting various kinds of information may be classified into two types.

First, information transmission using session initiation protocol (SIP) may be used. Information transmitted using SIP is information transmitted through IP multimedia subsystem 130, which is valid only while the session is open and after session termination. Is not valid, for example, status information of buddies.

SIP is an application layer signaling protocol that specifies the procedures for intelligent terminals (telephones, Internet conferences, instant messengers, etc.) that want to communicate on the Internet to identify and locate each other and to create, delete, or change multimedia communication sessions. It has a request and response structure that controls the creation, modification, and termination of multimedia service sessions, such as Internet-based conferencing, telephone, voice mail, event notification, and instant messaging.

This SIP can be used for both TCP and UDP, and can be provided without being dependent on the IP address by using a SIP URL similar to an email address to distinguish components such as a server and a terminal.

In addition, the request message of the SIP includes a request for one component to request information from another component (SUBSCRIBE), a notice that one component provides information to another component, and one component to another. For example, a request for obtaining information from a component (GET) may be exemplified. For a request message transmitted from one component, the other component transmits a response message indicating an acknowledgment (200 OK).

In addition, another method of transmitting various types of information in the presence service providing system 100 may include information transmission using an XML configuration access protocol (XCAP). The information transmitted using the XCAP may be configured to use the IP multimedia subsystem 130. As information transmitted without passing through, it is maintained until the user changes regardless of opening / closing a session. For example, XDMS information such as a screen name, a photo URL information, a phone number, and an address may be used.

As such, in the presence service providing system 100, the terminal 120 accesses the data network 170 using TCP and UDP, and then, using the XCAP, the XML document management server 140 and the presence server 160. And the IP multimedia subsystem 130 using SIP.

The IP multimedia subsystem 130, the XML document management server 140, the resource list server 150, and the presence server 160 communicate with each other using SIP.

In the presence service system 100, the terminal 120 receives the presence information from the resource list server 150 to receive the presence service, wherein the presence information is a new identifier of the XDMS information of the XML document management server 140 It includes.

Accordingly, the terminal 120 may determine whether to change the XDMS information by comparing the new identifier of the XDMS information included in the received presence information with the previous identifier of the XDMS information stored therein, and when the XDMS information is changed. By selectively accessing the XML document management server 140 and receiving the updated XDMS information, it reduces the traffic of the data network 130 and prevents communication failure.

A presence service providing method according to an exemplary embodiment of the present invention will be described with reference to the accompanying drawings.

3 is a diagram illustrating a presence service providing method according to an exemplary embodiment of the present invention.

As shown in FIG. 3, in order to receive the presence service, the terminal 120 requests (SUBSCRIBE) the presence information (LIST) for buddies registered as the resource list server 150 (S202), and the resource list. The server 150 acknowledges (200 OK) the terminal 120 (s204).

In addition, the resource list server 150 is an XML document management server 140. XDMS information (user agent profile) in the form of XML document including user information of the terminal 120, buddy information of a registered user, buddy rule information, and the like. UA-PROFILE) (SUBSCRIBE) (S206), the XML document management server 140 confirms (200 OK) to the resource list server 150 (s208).

Further, the XML document management server 140 notifies the resource list server 150 of the XDMS information (UA-PROFILE) and the identifier (etag) of the XDMS information (s210), and the resource list server 150 is XML Acknowledgment (200 OK) to the document management server 140 (s212).

Here, the identifier (etag) of the XDMS information is a key value of the XDMS information in the form of XML document stored in the XML document management server 140. When the XDMS information is changed, the identifier (etag) of the XDMS information is also changed. When the identifier of the XDMS information is changed, the XML document management server 140 may notify both the new identifier (new-etag) and the previous identifier (previous-etag) to the resource list server 150.

That is, the identifier (etag) of the XDMS information is a value updated in conjunction with the XDMS information.

Subsequently, the resource list server 150 requests (SUBSCRIBE) the status information PS of the buddies related to the XDMS information to the presence server 160 (s214), and the presence server 160 receives the resource list server 150. Confirm (200 OK) (s216).

In addition, the presence server 160 notifies the status information PS of the buddies to the resource list server 150 (s218), and the resource list server 150 acknowledges the presence server 200 (200). OK) (s220).

In addition, the resource list server 150 synthesizes a new identifier (new-etag) of the XDMS information to the status information (PS) of the buddy and notifies to the terminal 120 as the presence information (LIST) (S222). The terminal 120 acknowledges (200 OK) to the resource list server 150 (s224).

And, the terminal 120 is a new identifier (new-etag) of the XDMS information included in the presence information (LIST) received from the resource list server 150 and the previous identifier of the XDMS information stored by the terminal 120 itself. (previous-etag) is compared to determine whether the match (s226).

If the new identifier (new-etag) of the XDMS information received from the resource list server 150 and the previous identifier (previous-etag) of the XDMS information stored by the terminal 120 itself do not match, the XDMS information is changed. Since, the terminal 120 bills the changed XDMS information to the XML document management server 140 (GET) (s228), and the XML document management server 140 is changed with the acknowledgment (200 OK) to the terminal 120. Transmitting the XDMS information (s230), the terminal 120 starts the presence service using the changed XDMS information (s232).

As a result of determination, if the new identifier (new-etag) of the XDMS information received from the resource list server 150 and the previous identifier (previous-etag) of the XDMS information stored by the terminal 120 itself do not change, the XDMS information does not change. Since the terminal 120 accesses the XML document management server 140 and starts the presence service using the XDMS information stored therein without receiving the XDMS information (S232).

An identifier (etag) of the XDMS information included in the XDMS information and the presence information will be described with reference to the drawings.

4A and 4B illustrate XDMS information (US-PROFILE) and state information (PS) of a presence service providing method according to an exemplary embodiment of the present invention, respectively, with reference to FIGS. 2 and 3.

As shown in Figure 4a, in the presence service providing method according to an embodiment of the present invention, the XML document management server 140 notifies to the resource list server 150 (s210) XDMS in the form of XML document The information US-PROFILE includes a new identifier (new-etag) and a previous identifier (previous-etag) "aaaab" and "ffds66a" of the XDMS information, respectively.

In addition, as shown in FIG. 4B, the resource list server 150 generates using the status information PS of the buddies and notifies the terminal 120 to the terminal 120 (s222). A new identifier "aaaab" of information is included.

In addition, although not shown, the terminal 120 stores "ffds66a" which is a previous identifier (previous-etag) of the XDMS information.

Therefore, the terminal 120 extracts a new identifier "aaaab" from the presence information LIST received from the resource list server 150, and stores the previous identifier "previous-etag" stored in the terminal 120. By comparing with "ffds66a", it is determined whether or not the XDMS information has been changed, and whether the connection to the XML document management server 140 and the request for new XDMS information (GET) are determined.

A terminal of a presence service providing system according to an exemplary embodiment of the present invention will be described with reference to the accompanying drawings.

5 is a diagram illustrating a configuration of a presence service providing terminal according to an exemplary embodiment of the present invention, which will be described with reference to FIGS. 2 and 3.

As shown in FIG. 5, the presence service providing terminal 120 according to an embodiment of the present invention includes a wireless communication unit 121, a data management unit 122, an application execution unit 123, a storage unit 124, and a display unit. And a control unit 126.

The wireless communication unit 121 connects to the data network 170 through an antenna and transmits and receives a signal. The wireless communication unit 121 may include a duplexer, a transmitter, and a receiver.

The duplexer separates signals transmitted and received wirelessly through an antenna, and a transmitter converts a predetermined intermediate frequency signal into a radio frequency and outputs the duplexer, and a receiver receives a radio signal received through the antenna through a duplexer. The intermediate frequency signal can be converted and output.

The data manager 122 generates a data packet and transmits the data packet to the resource list server 150 and the XML document management server 140 through the data network 170, and the resource list server 150 and the data network 170 through the data network 170. The data packet received from the XML document management server 140 is analyzed and transmitted to the application execution unit 123.

For example, the data manager 122 generates a data packet for SUBSCRIBE for the presence information LIST, transmits the data packet to the resource list server 150, and notifies the presence information LIST from the resource list server 150. After receiving the NOTIFY data packet, a new identifier (new-etag) of the XDMS information included in the presence information LIST may be extracted and transmitted to the application execution unit 123.

In addition, according to the determination result of the application execution unit 123, generates a data packet for requesting (GET) the changed XDMS information, and transmits to the XML document management server 140, the changed XDMS information from the XML document management server 140 Received can be delivered to the application execution unit 123.

The application execution unit 123 may execute an application held by the terminal 120 and store the execution result in the storage unit 124 or may display the result in the display unit 125.

For example, the application execution unit 123 executes the presence service related application according to a user's execution command, and determines whether the XDMS information is changed before providing the presence service.

That is, the application execution unit 123 instructs the data management unit 122 to request (SUBSCRIBE) the presence information LIST to the resource list server 150, and the data management unit 122 from the resource list server 150. After receiving the new identifier (new-etag) of the XDMS information extracted from the notified presence information (LIST), it is determined whether it matches with the previous identifier (previous-etag) of the XDMS information stored in the storage unit 124. can do.

If the new identifier (new-etag) and the previous identifier (previous-etag) of the XDMS information are different from each other, the application execution unit 123 changes the XDMS information whose data management unit 122 is changed to the XML document management server 140. Instructs to get (GET), and the data manager 122 may receive the changed XDMS information received from the XML document management server 140.

Thereafter, the application execution unit 123 uses the XDMS information or the changed XDMS information and the presence information transmitted from the data management unit 122, which are stored in the application execution unit 123, for example, buddy information and the corresponding information. Presence service is provided by displaying the status information of buddies on the display unit 125.

The storage unit 124 stores data or an execution result necessary for the execution of the application. For example, the storage unit 124 may store XDMS information, previous identifiers of the XDMS information, presence information, and the like.

The display unit 125 displays a screen corresponding to an execution state and a result of the application. For example, the display unit 125 may display a presence service screen indicating state information of registered buddies.

The controller 126 controls the wireless communication unit 121, the data management unit 122, the application execution unit 123, the storage unit 124, and the display unit 125 so that the terminal 120 smoothly provides the presence service. .

A method of driving a terminal of a presence service providing system according to an exemplary embodiment of the present invention will be described with reference to the accompanying drawings.

6 is a diagram illustrating a method of driving a presence service providing terminal according to an exemplary embodiment of the present invention, which will be described with reference to FIGS. 2, 3, and 5.

As illustrated in FIG. 6, when an execution command of a user is input, the application execution unit 123 executes an application related to the presence service (S302).

Thereafter, the data manager 122 requests the presence information from the resource list server 150 (s304), and receives the presence information from the resource list server 150 (s306).

Then, the data manager 122 extracts a new identifier (new-etag) of the XDMS information from the presence information and delivers it to the application execution unit 123, and the application execution unit 123 receives the XDMS received from the data management unit 122. It is determined whether the new identifier of the information (new-etag) and the previous identifier (previous-etag) of the XDMS information stored in the storage unit 124 match (S308).

If the application execution unit 123 determines that the new identifier (new-etag) and the previous identifier (previous-etag) of the XDMS information do not match, the data management unit 122 changes the XDMS information to the XML document management server 140. Request (s310), and receives the changed XDMS information from the XML document management server 140 (s312).

The data manager 122 transmits the changed XDMS information to the application executor 123, and the application executor 123 uses the changed XDMS information to display the presence information including the status information of the buddies on the display 125. In operation S314.

On the other hand, if it is determined by the application execution unit 123 that the new identifier (new-etag) and the previous identifier (previous-etag) of the XDMS information match, then the connection is made to the XML document management server 140 of the data management unit 122. Omitting the reception of the XDMS information, the application execution unit 123 displays the presence information including the status information of the buddies on the display unit 125 by using the XDMS information stored in the storage unit 124 (S314).

As described above, in the presence service providing terminal according to the embodiment of the present invention, the presence service providing system including the same, and the method for providing the same, the presence information includes a new identifier of the XDMS information and is transmitted to the terminal. It determines whether the XDMS information is changed by using the new identifier and receives the changed XDMS information by accessing the XML document management server (XDMS) only when there is a change in the XDMS information. It can prevent.

100: presence service providing system 120: terminal
130: IP multimedia subsystem 140: XML document management server
150: resource list server 160: presence server
170: data network

Claims (17)

A terminal capable of wired and wireless data communication and storing a presence service application;
An XML document management server storing XDMS information of the terminal and a new identifier of the XDMS information;
A presence server that stores state information of buddies included in the XDMS information;
A resource list server for generating the presence information obtained by combining the new identifier and the state information and transmitting the generated presence information to the terminal.
Wherein the terminal selectively accesses the XML document management server by using the new identifier, and receives the changed XDMS information.
The method of claim 1,
And an IP multimedia subsystem for transmitting data packets using the session initiation protocol (SIP) or the XML configuration access protocol (XCAP) between the XML document management server, the presence server, and the resource list server and the terminal. Service delivery system.
The method of claim 1,
The XDMS information includes user information of the terminal, buddy information of the user, and buddy rule information for the presence service, and the status information is information on a connection state of the buddies.
The method of claim 1,
The terminal determines whether the new identifier matches the stored previous identifier, and if it does not match, the terminal accesses the XML document management server and receives the changed XDMS information to display the presence information. And if the terminal displays the presence information by using the stored XDMS information.
The method of claim 1,
The XDMS information is in the form of an XML document, and the new identifier is a presence service providing system which is a key value updated in conjunction with the XDMS information.
A first step of the XML document management server transmitting the XDMS information of the terminal and the new identifier of the XDMS information to the resource list server;
Transmitting, by the presence server, status information of buddies included in the XDMS information to the resource list server;
Transmitting, by the resource list server, the presence information obtained by combining the new identifier and the state information to the terminal;
A fourth step in which the terminal selectively accesses the XML document management server using the new identifier and starts a presence service
Presence service providing method comprising a.
The method according to claim 6,
Before the first step,
Requesting, by the terminal, presence information to the resource list server (SUBSCRIBE);
Acknowledging (200 OK) the resource list server to the terminal;
Presence service providing method comprising more.
The method according to claim 6,
In the first step,
Requesting (SUBSCRIBE) the XDMS information of the terminal from the resource list server to the XML document management server;
Acknowledging (200 OK) the XML document management server to the resource list server;
Notifying, by the XML document management server, the XDMS information and the new identifier to the resource list server;
Acknowledging (200 OK) the resource list server to the XML document management server
Presence service providing method comprising more.
The method according to claim 6,
The second step comprises:
Requesting, by the resource list server, status information of buddies included in the XDMS information to the presence server (SUBSCRIBE);
Acknowledging (200 OK) the presence server with the resource list server;
Notifying, by the presence server, the status information to the resource list server;
Acknowledging (200 OK) the resource list server to the presence server
Presence service providing method comprising more.
The method according to claim 6,
The fourth step,
And determining, by the terminal, whether the new identifier matches a previously stored identifier.
The method of claim 10,
And if the new identifier and the previous identifier do not coincide with each other, the terminal receives the changed XDMS information from the XML document management server.
A data manager which receives the presence information from the resource list server of the data network and extracts a new identifier included in the presence information;
An application execution unit which executes the presence service application and determines whether the new identifier and the stored previous identifier match each other;
A storage unit storing the previous identifier
Presence service providing terminal comprising a.
The method of claim 12,
If the new identifier and the old identifier match,
And the application execution unit displays an execution result of the presence service application by using XDMS information corresponding to the previous identifier stored in the storage unit.
The method of claim 12,
If the new identifier and the old identifier do not match,
The data manager receives the changed XDMS information corresponding to the new identifier from the XML document management server of the data network and delivers the changed XDMS information to the application execution unit.
The application execution unit is a presence service providing terminal for displaying the execution result of the presence service application using the changed XDMS information.
Starting by the application execution unit to execute the presence service application;
Receiving, by the data manager, the presence information from the resource list server of the data network, extracting a new identifier included in the presence information, and transmitting the new identifier to the application execution unit;
Determining, by the application executor, whether the new identifier matches a previous identifier stored;
Displaying, by the application execution unit, the presence information by using XDMS information corresponding to the new identifier or the previous identifier
Operation method of the presence service providing terminal comprising a.
The method of claim 15,
If the new identifier and the old identifier match,
And the application execution unit displays the presence information using the XDMS information corresponding to and stored in the previous identifier.
The method of claim 15,
If the new identifier and the old identifier do not match,
And receiving, by the data management unit, the changed XDMS information corresponding to the new identifier from the XML document management server of the data network and transmitting the changed XDMS information to the application execution unit.
And the application execution unit displays the presence information using the changed XDMS information.

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