KR100657633B1 - Method and system for transmitting and receiving electrical file using wireless network - Google Patents

Abstract

According to the present invention, a service management device receives a file transfer request, calling party identification information, and called party identification information from a first user terminal, and receives subscriber information corresponding to the calling party identification information and called party identification information from the list management device. After that, when the session creation request is transmitted to the media distribution apparatus and the INVITE message is transmitted to the second user terminal, the media distribution apparatus receives the electronic file from the first user terminal, and establishes a TCP connection and session with the second user terminal. After that, the present invention relates to an electronic file transmission and reception service method and system using a mobile communication network for transmitting an electronic file to a second user terminal, so that the electronic file can be transmitted and received in real time between a plurality of users in a more advanced manner.

Real time, file transfer, billing, mobile terminal,

Description

Electronic file transmission and reception service method and system using a mobile communication network {Method and system for transmitting and receiving electrical file using wireless network}             

1 is a schematic block diagram of a mobile communication service system for performing an electronic file transmission and reception service method according to an embodiment of the present invention.

2 illustrates the format of a Binary Protocol message in accordance with one preferred embodiment of the present invention.

3 is a data flow diagram illustrating a login procedure for using an electronic file transmission / reception service of a subscriber according to an embodiment of the present invention.

4 is a data flow diagram illustrating a logout procedure for terminating the subscriber's use of an electronic file transmission / reception service according to an embodiment of the present invention.

5 is a data flow diagram illustrating a self-state updating method for subscribers using an electronic file transmission / reception service according to an embodiment of the present invention.

6 is a data flow diagram illustrating a process in which any subscriber adds an optional buddy to a contact list in accordance with a preferred embodiment of the present invention.

7 is a flowchart illustrating a method of transmitting an electronic file according to an embodiment of the present invention.

8 is a flowchart illustrating a method for performing charging and a call release for electronic file transmission according to an exemplary embodiment of the present invention.

9 is a flowchart illustrating a real time charging method for an intelligent network subscriber according to an embodiment of the present invention.

The present invention relates to an electronic file transmission and reception service method and system using a mobile communication network, and in particular, a mobile communication network capable of transmitting and receiving electronic files among a plurality of users in real time, and performing charging in real time according to the performance of the electronic file transmission and reception service. An electronic file transmission and reception service method and system using the same.

In general, a mobile communication terminal (eg, a mobile phone, a PCS terminal, a personal digital assistant (PDA), etc.) provides a text message transmission function using a short message service center included in a mobile communication service system in addition to a voice call function. Equipped. In addition, mobile communication terminals manufactured and sold in recent years further include a wireless Internet access function, a digital image and video generation function, and the like.

In particular, the utilization of various additional functions such as text message transmission and reception using a mobile communication terminal and wireless Internet access has been increasing recently, and various data are received from a web server connected through a communication network.

However, the conventional electronic file transmission / reception system focuses on one-sided data transmission / reception from a web server, but a method for actively transmitting and receiving electronic files between a plurality of users has not been proposed.

Accordingly, an object of the present invention for solving the above problems is to provide an electronic file transmission / reception service method and system using a mobile communication network that enables the electronic file to be transmitted and received in real time between a plurality of users in a more advanced manner.

Another object of the present invention is to provide an electronic file transmission and reception service method and system using a mobile communication network that can generate charging data in real time for the use of electronic file transmission and reception services, and can perform real-time balance deduction for an intelligent network subscriber. .

In order to achieve the above objects, according to an aspect of the present invention, in the method for the service management device and the media distribution device included in the mobile communication service system to perform the electronic file transmission and reception service, the service management device starts the first session Receiving a file transfer request, calling party identification information, and called party identification information from a first user terminal via a protocol proxy; Receiving, by the service management device, subscriber information corresponding to the originating subscriber identification information and the called party identification information from a list management device, wherein the subscriber information corresponds to a network connection of a second user terminal corresponding to the called subscriber identification information; Includes information and status information; Transmitting, by the service management device, a session creation request to the media distribution device; The service management device transmitting an INVITE message to the second user terminal via a second session start protocol proxy corresponding to the network connection information, wherein the INVITE message is an IP address and a service port of the media distribution apparatus. Contains information; The media distribution device receiving an electronic file from the first user terminal; And after the media distribution apparatus establishes a TCP connection and session with the second user terminal, transmitting the electronic file to the second user terminal via the second session start protocol proxy. An electronic file transmission / reception service method is provided, and a system, apparatus, and a recording medium for enabling the electronic file transmission / reception service method are provided.

The receiving of the electronic file may include: receiving, by the media distribution apparatus, electronic file information from the first user terminal after establishing a TCP connection and session with the first user terminal, wherein the electronic file information is a file. Includes type and file size; Determining, by the service management apparatus, whether or not transmission is possible using the file size received from the media distribution apparatus; Transmitting, by the service management device, a determination result of whether transmission is possible to the media distribution device; If the determination result is a transmittable response, transmitting, by the media distribution apparatus, an authentication success message to the first user terminal; And receiving, by the media distribution device, an electronic file from the first user terminal.

The electronic file transmission / reception service method may further include: receiving, by the service management device, a reception response corresponding to the transmission of the electronic file from the second user terminal via the second session start protocol proxy and the media distribution device; And generating a charging CDR corresponding to the file size to correspond to the calling party identification information.

In the electronic file transceiving service method, before the electronic file is transmitted to the second user terminal via the second session start protocol proxy, the media distribution apparatus transmits the received electronic file to a file conversion apparatus. step; Requesting, by the file conversion apparatus, environment information of the second user terminal from a subscriber information apparatus; Converting, by the file conversion apparatus, the electronic file to correspond to environmental information received from the subscriber information apparatus; And transmitting, by the file conversion device, the converted electronic file to the media distribution device.

If the subscriber information includes a contact list corresponding to the called party identification information, and the contact list includes a reject list, the electronic file transmission / reception service method includes the calling party identification information in the rejector list. Determining whether it is included; And transmitting a preset error message to the first user terminal via the first session start protocol proxy when included in the rejector list.

The session initiation protocol proxy may be a Session Initiate Protocol (SIP) server.

The subscriber identification information may be at least one of a Uniform Resource Identifier (URI), an International Mobile Subscriber Identifier (IMSI), a phone number, and an ID.

According to a preferred embodiment of the present invention, in a method in which a service management device and a media distribution device included in a mobile communication service system perform an electronic file transmission / reception service, the service management device may be configured via a first session start protocol proxy. Receiving a file transfer request, calling party identification information, and called party identification information from a first user terminal; Receiving, by the service management apparatus, subscriber information corresponding to the originating subscriber identification information and the called party identification information from a list management device, wherein the subscriber information is a subscriber corresponding to the originating subscriber identification information; Network connection information and status information of a second user terminal corresponding to the called party identification information; Transmitting, by the service management device, a session creation request to the media distribution device; The service management device transmitting an INVITE message to the second user terminal via a second session start protocol proxy corresponding to the network connection information, wherein the INVITE message is an IP address and a service port of the media distribution apparatus. Contains information; Receiving, by the media distribution apparatus, electronic file information from the first user terminal after establishing a TCP connection and session with the first user terminal, wherein the electronic file information includes a file type and a file size; Receiving, by the service management apparatus, whether to be transmitted using the file size received from the media distribution apparatus; Determining, by the service management apparatus, whether a subscriber corresponding to the originating subscriber identification information is a prepaid subscriber; In the case of a prepaid subscriber, transmitting the subscriber details information request to the intelligent network data service control device to receive the subscriber details information, wherein the subscriber details information includes the first balance information, and the balance information includes the number of times of transmission, At least one of an available time and an available packet amount; When the first balance information is suitable for transmission of the file size with reference to the subscriber detail information, transmitting, by the service management device, a transferable response to the media distribution device; Transmitting, by the media distribution apparatus, an authentication success message to the first user terminal; The media distribution device receiving an electronic file from the first user terminal; And after the media distribution apparatus establishes a TCP connection and session with the second user terminal, transmitting the electronic file to the second user terminal via the second session start protocol proxy. An electronic file transmission / reception service method is provided, and a system, apparatus, and a recording medium for enabling the electronic file transmission / reception service method are provided.

The electronic file transmission / reception service method includes determining whether the first balance information is balance exhaustion information; And in the case of balance exhaustion information, transmitting a preset error message to the first user terminal.

The electronic file transmission / reception service method may further include: transmitting, by the service management device, usage information corresponding to the electronic file to an intelligent network data service control device; And receiving updated second balance information from the intelligent network data service control device, wherein the usage information corresponds to at least one of a transmission count, a usage time, and a usage packet amount. The intelligent network data service control apparatus may generate the second balance information by subtracting the usage information from the first balance information.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the same reference numerals will be used for the same means regardless of the reference numerals in order to facilitate the overall understanding. In addition, the electronic file in the present invention refers to all types of data that can be played or used through the electronic device, such as multimedia data such as images, videos, music, document data, programs, and the like.

1 is a schematic block diagram of a mobile communication service system for performing an electronic file transmission / reception service method according to an exemplary embodiment of the present invention, and FIG. 2 is a binary protocol according to an exemplary embodiment of the present invention. Protocol) shows the format of a message.

Referring to FIG. 1, a mobile communication service system 110 according to the present invention includes a base station / base station controller (BTS / BSC) 115, a data service device 120, and a Session Initiate Protocol Server (SIPS). 125, service management device 130, intelligent network data service control device (DSCP: 135), presence management device (PS: Presence Server) 140, list management device (GLMS: Group List Management Server (145), CDR collection device (MGCS (Mobile Group Communication Server) Accounting Server (150), terminal state management device (IPLS: Internet Protocol Location Server) (155), buddy list management device 160, intelligent network ( WISE (165), media distribution device (MDS: Media Distribution Server) (170), media gateway (MGS: Media Gateway Server) (175), file conversion device (FCS: File Conversion Server) (180) and subscriber information management Device 185.

The data service device 120 is a device that enables the provision and use of a data service in addition to a voice call network, and includes an interworking function (IWF), a packet data serving node (PDSN), and a gateway. It may include at least one of a GPRS Supporting Node (GGSN). A network interworking device (IWF) is a wireless data service device in a 2G network, which is a PPP connection with user terminals 100a, 100b, ..., 100n-hereinafter referred to as 100, and NO7 / ISUP with an exchange (not shown). It is a device that performs interworking. A packet data serving node (PDSN) is a wireless data service device in a synchronous 3G network. The packet data serving node (PDSN) is a RP interface with a packet controller (PCF) (not shown), a PPP interface with a user terminal 100, and a home agent (HA: Home Agent (not shown), responsible for the mobile IP interface. In addition, the gateway GPRS supporting node (GGSN) means a wireless data service device in an asynchronous 3G network. Of course, it is obvious that other devices that perform similar functions may be applied in the same manner as the above-described devices.

The proxy 125 transmits an SDB indicator so that a short data burst (SDB) function for transmitting a binary protocol message on a wireless network through a common channel (eg, a paging channel or an access channel) may be used. It further includes a function to do. The session start protocol proxy 125 interworks with the service management apparatus 130 for call processing of the user terminal 100 for using the electronic file transmission / reception service. In addition, the session start protocol proxy 125 interworks with the list management device 145, the presence management device 140, and the like for subscriber authentication, registration, presence management, group management, and the like. In addition, the session start protocol proxy 125 is interworked with a domain name server (DNS) to obtain an IP address from a domain when routing a SIP message, and is interworked with the presence management apparatus 140 for location lookup of the user terminal 100. .

The service management device 130 is responsible for call control and session control for performing electronic file transmission and reception services, and generates a charging CDR according to electronic file transmission and reception. In addition, the service management device 130 may further perform a real-time prepaid deduction function in conjunction with the intelligent network data service control device (DSCP) 135 when the billing subject according to the electronic file transmission and reception is the intelligent network subscriber. The service management device 130 may generate a charging CDR per case in the case of an electronic file transmission, and generate a charging CDR corresponding to a subscriber that has received an incoming call completion (200 Ok) response from the called party in the case of a group transmission. Hereinafter, a description will be given focusing on a case in which billing for transmitting and receiving an electronic file according to the present invention is performed for a subscriber who transmits the electronic file. Of course, the charge may be made to the subscriber receiving the electronic file. The service management device 130 interworks with the session start protocol proxy 125 for call processing, and interworks with the media distribution device 170 for session establishment and billing information transmission and reception. In addition, the service management device 130 has an interworking function with the media gateway 175 for interworking with another network.

The intelligent network data service control device (DSCP) 135 is a means for overseeing the processing of data services among the intelligent network services.

The presence management device (PS) 140 manages subscriber information (eg, subscriber ID, hexa ID, screen name, IP address, etc.), the subscriber's presence information, and corresponds to the request for changing the status information of the subscriber. Perform the action. The presence management device 140 maintains the subscriber state until the subscriber who wants to use the electronic file transmission and reception service first accesses and terminates the connection. Presence information includes a variety of dynamic information (e.g., reachability of the subscriber to communicate with, the likelihood of response and the location of the user, etc.) for subscribers connected to the electronic file transceiving service through various means. Presence management device 140 stores the information of the subscriber when registering the subscriber, and provides the presence information of the buddies included in the contact list of the subscriber. In addition, the presence management apparatus 140 performs a response to the IP address and the presence query for the called subscriber from the session start protocol proxy 125 when the incoming call is received.

The list management apparatus (GLMS) 145 is a means for performing subscriber registration, subscriber authentication, subscriber information management, contact list management, group list management, and access list management. . The function of the list management device 145 will now be described in detail. As a subscriber registration function, the list management device 145 provides contact list, group list, and access list information for the subscriber when the subscriber attempts to register for the electronic file transmission / reception service. In addition, as a subscriber authentication function, the list management device 145 performs service authentication through HTTP digest authentication at the time of subscriber registration, and subscriber authentication at the time of subscriber registration in conjunction with the terminal state management device 155 for authentication of illegal subscribers. Perform the function. The International Mobile Subscriber Identifier (IMSI) and / or Mobile Directory Number (MDN) used for subscriber authentication is a value included in a SIP Register Message received from the user terminal 100 or the user terminal 100. It may be a value extracted from the storage unit (not shown) in the mobile communication service system 110 by using the hexa ID received from the key as a key. In the latter case, subscriber authentication may be performed only when the first user attempts to access using the registered user terminal 100 and the registered user ID and password. Therefore, when attempting to connect using another user's user terminal 100, authentication failure may be processed. In addition, the list management device 145 is also a subscriber information management function from the terminal state management device 155, and the list management device 145 is provided with subscriber information (for example, when the user terminal 100 is first registered in the intelligent network 165). For example, it receives, stores, and manages host ID, Hexa ID, and screen name. The contact list and the access list may be divided into, for example, a target group list for sending a specific user and a target group division list for controlling an approval method for an incoming request from an arbitrary user. That is, the access list may register respective buddies to an accept list or reject list, respectively, in order to control the approval method for the incoming request. That is, the list managing device 145 checks the rejection list of the called party when the call is set up while managing the access list, and if the sender (that is, the buddy) that sends an arbitrary message is included in the reject list, the service management device 130 Should not perform the corresponding action.

The CDR collection device 150 collects the charging CDRs generated and delivered by the service management device 130 and delivers them to the intelligent network. The CDR collection device 150 may collect the charging CDR from the service management device 130 at every electronic file transfer completion time.

The terminal state management device 155 manages the positions and states of the 1x and 1xEV-DO subscribers. In addition, the terminal state management apparatus 155 may receive a Session Control and Mobility Management (SCMM) when an activation request for the user terminal 100 is received from a long message service unit (LMSC: not shown). And activating the user terminal 100 in association with a domain name server (DNS).

The buddy list management device 160 is responsible for registering / deleting a buddy (ie, a counterpart to communicate with), creating / deleting a group of a MGCS subscriber, and performing an approval procedure for the buddy.

The intelligent network (WISE) 165 is a system for performing subscriber management, service control, billing, and the like, and may be configured with a billing system (BS) and a customer care system (CS).

The media distribution device (MDS) 170 is a system for transmitting bearer traffic for an electronic file transceiving service, and performs a media session control function, a media analysis and distribution function, a billing information transmission function, and a duplication function. Specifically, the media session control function is a function of allocating a corresponding resource when the service management device 130 requests resource allocation to the media distribution device 170 during a session establishment process for transmitting and receiving electronic files. . The media analysis and distribution function distinguishes and analyzes the received bearer traffic according to its attributes, and the MSRP / TCP protocol may be used for bearer traffic transmission. The TCP packet received by the media distribution device 170 is converted and distributed in accordance with the file conversion device 180 as necessary to suit the subscriber's terminal environment. In addition, the media distribution device 170 further includes a function for releasing the channel when the electronic file transmission and reception is not performed within a predetermined time including a timer. The charging information transmission function generates a charging CDR according to the subscriber's electronic file transmission. At this time, the session-based billing information may be transmitted to the service management device 130 immediately after the session is terminated, and the billing CDR for the electronic file transmission may be generated in units of transmission regardless of individual transmission or group transmission. . In addition, the media distribution apparatus 170 has a load sharing function that allows each media distribution apparatus 170 to share the same load when there are a plurality of media distribution apparatuses as a redundancy function. The media distribution device 170 interworks with the service management device 130 for call processing for electronic file transmission, and interoperates with the file conversion device 180 to convert an electronic file suitable for the subscriber terminal environment.

The media gateway (MGS) 175 is a device in charge of the interworking function between the mobile communication service system and another network, and performs a signaling gateway function and a media gateway function. Specifically, the media gateway 175 performs a signaling conversion function for a call setup request message received from the service management device 130 or a call setup request message from another network. In addition, the media gateway 175 converts the voice traffic received from the subscriber of the other network or the voice traffic transmitted to the other network subscriber when interworking with the other network.

The file conversion apparatus (FCS) 180 is a device that converts a file received from the media distribution apparatus 170 by interworking with the subscriber information device 185 to correspond to the terminal environment of the receiving subscriber. That is, the file conversion apparatus 180 receives a conversion request for a specific packet from the media distribution apparatus 170, converts it to match the terminal environment of the receiving subscriber, and sends it back to the media distribution apparatus 170. In this case, in order to know the terminal environment of the receiving subscriber, the file conversion apparatus 180 interworks with the subscriber information apparatus 185.

The subscriber information device 185 is a device including subscriber information such as a terminal model name, an IMSI, an intelligent network subscription, a subscribed plan, and a mobile group communication service (MGCS) subscription.

In addition, although only the mobile communication terminals 100a and 100b and the personal digital assistant (PDA) 100n are illustrated in FIG. 1 as types of the user terminal 100, the mobile communication service system 110 includes a built-in communication function. It is obvious that the same may be applied without any limitation as long as the device is capable of transmitting and receiving an electronic file with a user terminal of a plurality of other subscribers. However, the user terminal 100 according to the present invention should have an electronic file transmission / reception program installed, and the electronic file transmission / reception program immediately accesses the list management device 145 to receive the list information, and starts the session start protocol proxy 125. Send a SIP registration request message. The electronic file transmission / reception program is provided by default in the manufacturing stage of the user terminal 100, or is downloaded by connecting to the buddy list management device 160 or the like or connected to the web server providing the program through the wireless Internet. It may be provided in the user terminal 100 through the method. The method for implementing the electronic file transmission / reception program to perform the above-described operation and the configuration and function of the SIP registration request message will be easily understood by those skilled in the art through the following description, and thus description thereof will be omitted.

3 is a data flow diagram illustrating a login procedure for using an electronic file transmission / reception service of a subscriber according to an embodiment of the present invention.

Referring to FIG. 3, in operation 310, the user terminal 100 executes an electronic file transmission / reception program included in the user terminal 100 at the user's request. When the electronic file transmission / reception program is executed, the user terminal 100 sets a traffic channel with the base station 115 and sets a PPP with the data service device 120 to perform the electronic file transmission / reception service. After notifying the system 110 that the instant messaging service is to be used, the data service device 120 performs an IP registration procedure to be assigned an IP address and always remains on.

Thereafter, in step 310, the user terminal 100 transmits a contact list provision request (HTTP Request (GetContactList)) to the list management device 145. The contact list providing request may include an IPSI and an international mobile subscriber identity (IMSI) corresponding to the user terminal.

The list management device 145 extracts a contact list corresponding to the request for providing the contact list and transmits the extracted contact list to the user terminal 100 (step 315).

In operation 320, the user terminal 100 transmits a registration request including an ID (for example, a hexa ID (Hex_ID)) and a password to the session start protocol proxy 125. In this case, the ID may be unique information embedded in the user terminal 100, and the password may be separate information input by the user. In addition, the registration request may include a SIP Uniform Resource Identifier (eg, user1@ktf.com) for identifying the user terminal 100.

The session start protocol proxy 125 transmits an authentication request (Auth_Request) including the ID and password received from the user terminal 100 to the list management device 145 in step 325.

The list management device 145 performs primary authentication for the subscriber by using the ID and password received from the session start protocol proxy 125. When the primary authentication is normally performed, the subscriber identification information (IMSI) and the IP address corresponding to the user terminal are extracted and the secondary authentication request (MS_Info_Request) is transmitted to the terminal state management apparatus 155 (step 330).

The terminal state management apparatus 155 performs the second authentication by determining whether the subscriber identification information (IMSI) and the IP address received from the list management apparatus 145 match the values stored in the storage unit. The authentication result (MS_Info_Response) is transmitted to the list management device 145 (step 335).

In operation 340, the list management device 145 transmits an authentication success response (Auth_Response) to the session start protocol proxy 125. Here, only the case where the list management device 145 transmits the authentication success response to the session start protocol proxy 125 as the case where both of the above-described primary and secondary authentications are successfully processed will be described. However, if the authentication is not successfully performed, it will be apparent that a separate procedure for restricting the subscriber's use of the instant messaging service will be performed.

In step 345, the session start protocol proxy 125 notifies the presence management device 140 of the authentication result (that is, the result of performing the login procedure) of the user terminal 100, and the response information from the presence management device 140. (Ie RLPS AddTuple_Request / Response).

In addition, the session start protocol proxy 125 transmits an authentication success response to the user terminal 100 in step 350.

In operation 355, the user terminal 100 transmits a configuration member information request (HTTP Request (GetMembers)) included in each contact list configuration group to the list management device 145.

The list management device 145 extracts configuration member information included in each contact list configuration group and transmits the configuration member information to the user terminal 100 (step 360).

The user terminal 100 transmits a subscriber information request (SUBSCRIBE) to the session start protocol proxy 125 to receive the presence information for each member of each group (step 365), and the session start protocol proxy 125 The subscriber information request is transmitted to the presence management device 140 (step 370). The subscriber information request may include a SIP Uniform Resource Identifier (eg, user1@ktf.com) for identifying the user terminal 100.

The presence management device 140 extracts the presence information for each member of each group, and notifies to the session start protocol proxy 125 (step 375), and the presence management device 140 receives the received presence information. Transmit to the user terminal 100 (step 370).

4 is a data flow diagram illustrating a logout procedure for terminating use of an electronic file transmission / reception service by a subscriber according to an embodiment of the present invention.

Referring to FIG. 4, in step 405, the user terminal 100 transmits a logout request to the session start protocol proxy 125.

The session start protocol proxy 125 transmits a management object deletion request for requesting the user terminal 100 to be deleted from the management object to the presence management device 140 in step 410. In this case, the session start protocol proxy 125 may transmit the user terminal 100 including subscriber identification information or IP address so as to delete the corresponding user terminal 100 from the management target.

The presence management device 140 deletes the corresponding user terminal 100 from the management target and transmits a management target deletion response to the session start protocol proxy 125 (step 415).

In operation 420, the session start protocol proxy 125 transmits a logout completion response to the user terminal 100.

5 is a data flow diagram illustrating a method of updating a self-state for a subscriber to use an electronic file transmission / reception service according to an embodiment of the present invention.

Referring to FIG. 5, a user terminal 100 that has been switched to an arbitrary state (for example, a normal state, an abnormal state, a silent mode, a do-not-disturb state, an online state, an offline state, a busy state, an idle state, etc.). ) Transmits a status update request to the presence management apparatus 140 in step 505. Within the status update request, a SIP Uniform Resource Identifier (eg, user1@ktf.com) for identifying the user terminal 100 and status information (for example, normal status, abnormal status, online status, offline status, Busy state, Idle state, etc.)

The presence management apparatus 140 updates the status of the user terminal 100 corresponding to the status update request in step 510, and transmits a status update response to the user terminal 100 in step 515.

It is apparent that not only the subscriber whose current status is updated through the aforementioned steps 505 to 515 but also the status information of all members registered in the contact list of the subscriber can be updated.

In operation 520, the user terminal 100 transmits a subscriber information request (SUBSCRIBE) for an arbitrary group to receive the presence information for each configuration member included in each contact list configuration group via the session start protocol proxy 125. Transmission to the presence management device 140.

The presence management apparatus 140 requests the list management apparatus 145 for configuration member information configured to correspond to the group information included in the subscriber information request in step 525.

The list managing device 145 extracts member information set to be included in the corresponding group in step 530, and proceeds to step 535 and transmits the extracted member information to the presence managing device 140.

The presence management device 140 extracts state information corresponding to the member information received in step 540 and transmits the state information extracted in step 545 to the user terminal 100.

Steps 520 to 545 may be repeatedly performed for each group included in the contact list.

In addition, the instant message transmission and reception service method and system using a mobile communication network according to the present invention may also provide a group status inquiry method. Briefly described as follows.

First, the user terminal 100 transmits state information on the group to be queried to the presence management apparatus 140 via the session start protocol proxy 125. In this case, the user terminal 100 may request that the inquiry request group be notified of the continuous state for a predetermined time (for example, T seconds).

The presence management device 140 requests the list management device 145 for configuration member information set to be included in the group for which the inquiry has been requested, and receives the configuration member information from the list management device 145.

The presence management device 140 determines whether the state information on the configuration member received from the list management device 145 holds or, if not, the status information of the configuration member to another presence management device 140. The device transmits a request for providing and receives status information on the corresponding configuration member from the presence management apparatus 140.

Thereafter, the presence management apparatus 140 transmits the state information on the configuration member set to be included in the corresponding group to the user terminal 100.

In addition, if the user terminal has requested to continuously provide the status information for a certain time (for example, T seconds) for any inquiry request group, the state of the user terminal of any configuration member included in the group Is updated within the corresponding time, the update information is transmitted to the user terminal 100 in real time. That is, when a user makes a request for providing status information by designating a time, the user can continuously receive status information of the configuration member updated within the corresponding time.

6 is a data flow diagram illustrating a process in which any subscriber adds an arbitrary buddy to a contact list according to an exemplary embodiment of the present invention.

Referring to FIG. 6, in step 615, the first user terminal 100 transmits a new buddy add request (HTTP Request (AddContact)) to the buddy list managing device 160. The request for adding a new buddy may include identification information (eg, ID, IMSI, telephone number, etc.) and group designation information of a target buddy to be added as a member in an arbitrary group.

In operation 620, the buddy list managing apparatus 160 transmits a request for sending the approval message to the short message server 600.

The short message server 600 transmits an approval request message to the user terminal of the target buddy (ie, the second user terminal 605). The authorization request message may be implemented to enable a URL callback function, and when an authorization response is input, the authorization response information (that is, HTTP Request (Accept)) is transmitted from the second user terminal 605, and the authorization is granted. When the rejection is input, the rejection information (ie, HTTP Request (Reject)) may be transmitted from the second user terminal 605.

When the approval response is input from the target buddy, the second user terminal 605 transmits the approval response information to the buddy list managing device 160 (step 630).

The buddy list management device 160 sends a new buddy add request to the list management device 145 to add the target buddy corresponding to the approval response information to the list management device 145 as a member of any group in step 635. send. The new buddy addition request may include subscriber identification information, identification information for identifying a target buddy, and group designation information.

In step 640, the list management device 145 adds the target buddy as a member in the group designated by the subscriber corresponding to the request for adding a new buddy.

The buddy list managing apparatus 160 transmits a request for sending a buddy add message to notify the short message server 600 that the new buddy addition is completed in step 645.

The short message server 600 transmits a buddy add message to the first user terminal 100 in step 650.

In operation 655, the first user terminal 100 transmits a contact list inquiry request to the buddy list management device 160.

The buddy list managing device 160 transmits the contact list inquiry request to the list managing device 145 in step 660, and the list managing device 145 retrieves the contact list corresponding to the subscriber in step 665 and performs step 670. It transmits to the buddy list management device 160 through. The buddy list managing device 160 transmits the received contact list to the user terminal 100.

Subsequently, when the presence management apparatus 140 receives a configuration member inquiry request (see step 520 of FIG. 3) from the first user terminal 100 to check status information of configuration members included in each group in the contact list, the contact is received. The configuration member information included in the corresponding group in the list is requested to the list management device 145, and the state information about the provided configuration member is extracted and transmitted to the first user terminal 100. Since this has already been described in detail with reference to FIG. 5, description thereof will be omitted.

7 is a flowchart illustrating an electronic file transfer method according to an embodiment of the present invention.

Referring to FIG. 7, the first user terminal 100 selects a receiving subscriber to which the electronic file is to be transmitted and transmits the electronic file transfer request to the service management apparatus 130 via the session start protocol proxy 125 ( Step 710, step 715). The electronic file transfer request may be a SIP INVITE message, and within the electronic file transfer request, outgoing subscriber identification information (eg, IMSI, phone number, ID, SIP URI, etc.) and incoming subscriber identification information (eg, IMSI, Phone number, ID, SIP URI, etc.). The SIP INVITE message is a message for establishing a media session such as an audio or video session. When the electronic file transmission / reception program installed in the first user terminal 100 is executed, a group list is displayed on the display unit as described above with reference to FIGS. 3 to 6, and a plurality of buddies are included in each group. Are included and displayed. The form in which a plurality of buddies are included in the group and displayed is similar to that of the instant messenger program. The user of the first user terminal 100 may select one or more receiving subscribers to which any electronic file is to be transferred, by selecting an arbitrary group or selecting one or more buddies within a specific group.

In operation 720, the service management device 130 requests the list management device 145 to provide target buddy information corresponding to the receiver SIP URI and subscriber information corresponding to the caller SIP URI to perform charging.

The list management device 145 extracts subscriber information corresponding to the receiver SIP URI and the sender SIP URI in step 725, and transmits the subscriber information to the service management device 130 in step 730. The subscriber information may include, for example, whether a subscriber is an intelligent network service, whether it is included in a reject list, a second session start protocol proxy 705 to which a second user terminal 605 corresponding to a receiver SIP URI is combined, and a user. The terminal may include information such as status information of the terminal (for example, online, silent mode, do-not-disturb mode, etc.). In this case, when the subscriber information includes a reject list, when the calling subscriber corresponds to the rejecting list designated by the receiving subscriber, the electronic file that the calling subscriber wants to transmit may be blocked in advance to the receiving subscriber. .

The service management device 130 instructs the creation of a session for the electronic file transfer to the media distribution device 170 (S_CRTE_DS_REQ) in step 735 and receives a response S_CRTE_DS_RSP from the media distribution device 170. When instructing creation of a session for electronic file transfer, the service management device 130 may transmit subscriber information to the media distribution device 170 together.

The service management device 130 transmits a SIP INVITE message to the second user terminal 605 corresponding to the receiving subscriber in step 740, and receives a response signal from the second user terminal 605.

In addition, the service management apparatus 130 notifies the first user terminal 100 that the TCP session establishment is waiting in step 745. This may be a SIP 200 OK message and may include the IP address and service port information of the media distribution device 170.

In step 750, the first user terminal 100 uses the information (IP address and service port information of the media distribution apparatus 170) included in the message notifying that the TCP session is waiting to be established. Set up a connection.

In operation 755, the first user terminal 100 establishes a session with the media distribution apparatus 170 by transmitting a VISIT message to the media distribution apparatus 170 and receiving a response signal from the media distribution apparatus 170. The VISIT message is used to establish a session with another corresponding endpoint at one endpoint. The VISIT message includes subscriber identification information (URI), IP address and service port information of the media distribution apparatus 170, and transaction ID (TR-). ID: Transaction ID), message size, etc.

In operation 760, the first user terminal 100 transmits the electronic file information (eg, a file type or size) to the media distribution apparatus 170.

The media distribution device 170 transmits an authentication request to the service management device 130 at step 765 as to whether the electronic file can be transmitted. The authentication request includes charging basic information (eg, electronic file size) corresponding to the electronic file information received from the first user terminal 100. In addition, although not shown in FIG. 7, the media distribution apparatus 170 may transmit the type and subscriber information of the electronic file to the file conversion apparatus 180 so as to be converted into an electronic file corresponding to the terminal environment of the receiving subscriber. have.

In operation 770, the service management apparatus 130 may verify whether transmission is possible using the charging basic information, and transmit a response according to the authentication result to the media distribution apparatus 170 in operation 775. In the following description, the response based on the authentication result is an authentication success response.

In operation 780, the media distribution apparatus 170 transmits an authentication success response to the first user terminal 100.

In operation 785, the first user terminal 100 transmits the electronic file to be transmitted to the media distribution apparatus 170 using the SEND message.

In operation 790, the second user terminal 605 and the media distribution apparatus 170 establish a TCP connection using information included in the INVITE message transmission / response through operation 740. For example, if the second user terminal 605 includes IP address and service port information of the media distribution apparatus 170 in the INVITE message, the second user terminal 605 may establish a TCP connection with the media distribution apparatus 170 using the corresponding information. . Of course, step 790 is a step that can be performed at any point after step 740.

In operation 795, the second user terminal 605 transmits a VISIT message to the media distribution apparatus 170 so that a session is established between the second user terminal 605 and the media distribution apparatus 170.

Thereafter, the media distribution apparatus 170 includes the electronic file received from the first user terminal 100 in the SEND message in step 799 and transmits it to the second user terminal 605.

8 is a flowchart illustrating a billing method and a call release method for an electronic file transmission according to an exemplary embodiment of the present invention.

The flowchart shown in FIG. 8 may relate to subsequent steps of the electronic file transfer method described above with reference to FIG. 7.

Referring to FIG. 8, in operation 799, the media distribution apparatus 170 includes the electronic file received from the first user terminal 100 in the SEND message and transmits the electronic file to the second user terminal 605.

In operation 805, the second user terminal 605 transmits a reception response indicating that the electronic file reception has been normally performed from the media distribution apparatus 170.

In operation 810, the media distribution apparatus 170 transmits a reception response indicating that the transmission of the electronic file is completed to the service management apparatus 130.

The service management device 130 generates a charging CDR based on the use of the electronic file transfer service on the basis of the calling subscriber in step 815, and transmits the charging CDR generated in step 820 to the CDR collection device 150. In operation 815, the service management device 130 may use the charging basic information received through operation 765 (see FIG. 7) to generate the charging CDR.

In operation 825, the media distribution apparatus 170 transmits a successful transmission message (RPP) including the recipient details of the successful transmission of the electronic file to the first user terminal 100.

The first user terminal 100 determines whether there is an additional electronic file to be transmitted, and if there is no additional electronic file to be transmitted, in step 830, transmits a file transfer termination request to the service management device 130. do.

The service management device 130 transmits a PTD session termination request to the media distribution device 170 in step 835, and receives a response from the media distribution device 170. In step 835, the PTD session between the service management device 130 and the media distribution device 170 is terminated.

In operation 840, the service management apparatus 130 releases the TCP connection with the first user terminal 100.

In operation 845, the service management apparatus 130 transmits a session termination message (eg, a BYE message) to the second user terminal 605 and receives a response signal from the second user terminal. In step 845, the SIP session between the service management device 130 and the second user terminal 605 is terminated.

In operation 850, the service management apparatus 130 releases the TCP connection with the second user terminal 605.

9 is a flowchart illustrating a real-time charging method for an intelligent network subscriber according to an embodiment of the present invention.

9 is a detailed view of step 770 of FIG. 7 described above.

Referring to FIG. 9, in operation 765, the media distribution apparatus 170 transmits a transmittable authentication request to the service management apparatus 130 to confirm whether the electronic file received from the first user terminal 100 can be transmitted. .

In operation 905, the service management apparatus 130 determines whether the calling subscriber corresponding to the first user terminal 100 is an intelligent network subscriber. The service management device 130 may determine whether the calling subscriber is an intelligent network subscriber using the subscriber information received through step 730 (see FIG. 7). If the calling subscriber is not an intelligent network subscriber, the electronic file transmission is performed by the method described with reference to FIG. 7. However, if the originating subscriber is an intelligent network subscriber, the process proceeds to step 910 and transmits a request for detailed subscriber information (eg, available time or amount of packets, call ID, etc.) to the intelligent network data service control apparatus 135. The subscriber identification information may be included in the subscriber details information request.

The intelligent network data service control apparatus 135 extracts subscriber detail information corresponding to the originating subscriber in step 915, and proceeds to step 920 to transmit the extracted subscriber detail information to the service management device 130.

The service management device 130 determines whether the balance for instant message transmission is insufficient or exhausted (UsableSvcCnt = 0) using the subscriber details received from the intelligent network data service control device 135 in step 925.

If the balance is insufficient or exhausted, the flow proceeds to step 930 to complete the electronic file transfer operation.

However, unless the balance is low or exhausted, the service management device 130 may transmit a response capable of transmitting the electronic file to the second user terminal 605 corresponding to the receiver SIP URI. (Step 775).

As described above, the electronic file transmission / reception service method and system using the mobile communication network according to the present invention enable the electronic file to be transmitted and received in real time between a plurality of users in a more advanced manner.

In addition, the present invention can generate billing data in real time for the use of the electronic file transmission and reception services, and in the case of intelligent network subscribers can perform real-time balance deduction.

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art to which the present invention pertains without departing from the spirit and scope of the present invention as set forth in the claims below It will be appreciated that modifications and variations can be made.

Claims (10)

A service management apparatus and a media distribution apparatus included in a mobile communication service system perform an electronic file transmission / reception service, Receiving, by the service management device, a file transfer request, an originating subscriber identification information, and a called subscriber identification information from a first user terminal via a first session start protocol proxy; Receiving, by the service management device, subscriber information corresponding to the originating subscriber identification information and the called party identification information from a list management device, wherein the subscriber information corresponds to a network connection of a second user terminal corresponding to the called subscriber identification information; Includes information and status information; Transmitting, by the service management device, a session creation request to the media distribution device; The service management device transmitting an INVITE message to the second user terminal via a second session start protocol proxy corresponding to the network connection information, wherein the INVITE message is an IP address and a service port of the media distribution apparatus. Contains information; And And transmitting, by the media distribution apparatus, the electronic file received from the first user terminal to the second user terminal having a TCP connection and session established through the second session start protocol proxy. The subscriber identification information is at least one of a Uniform Resource Identifier (URI), an International Mobile Subscriber Identifier (IMSI), a phone number, and an ID. The method of claim 1, Receiving the electronic file, Receiving, by the media distribution apparatus, electronic file information from the first user terminal after establishing a TCP connection and session with the first user terminal, wherein the electronic file information includes a file type and a file size; Determining, by the service management apparatus, whether or not transmission is possible using the file size received from the media distribution apparatus; Transmitting, by the service management device, a determination result of whether transmission is possible to the media distribution device; If the determination result is a transmittable response, transmitting, by the media distribution apparatus, an authentication success message to the first user terminal; And Receiving the electronic file from the first user terminal by the media distribution apparatus. The method of claim 2, Receiving, by the service management device, a reception response corresponding to the transmission of the electronic file from the second user terminal via the second session start protocol proxy and the media distribution device; And And generating a charging CDR corresponding to the file size to correspond to the calling party identification information. The method of claim 1, Prior to sending the electronic file to the second user terminal via the second session start protocol proxy, Transmitting, by the media distribution device, the received electronic file to a file conversion device; Requesting, by the file conversion apparatus, environment information of the second user terminal from a subscriber information apparatus; Converting, by the file conversion apparatus, the electronic file to correspond to environmental information received from the subscriber information apparatus; And And transmitting, by the file conversion apparatus, the converted electronic file to the media distribution apparatus. The method of claim 1, If the subscriber information includes a contact list corresponding to the called party identification information, and the contact list includes a reject list, Determining whether the calling party identification information is included in the reject list; And And transmitting a preset error message to the first user terminal via the first session start protocol proxy when included in the rejector list. The method of claim 1, And the session initiation protocol proxy is a Session Initiate Protocol (SIP) server. delete A service management apparatus and a media distribution apparatus included in a mobile communication service system perform an electronic file transmission / reception service, Receiving, by the service management device, a file transfer request, an originating subscriber identification information, and a called subscriber identification information from a first user terminal via a first session start protocol proxy; Receiving, by the service management apparatus, subscriber information corresponding to the originating subscriber identification information and the called party identification information from a list management device, wherein the subscriber information is a subscriber corresponding to the originating subscriber identification information; Network connection information and status information of a second user terminal corresponding to the called party identification information; Transmitting, by the service management device, a session creation request to the media distribution device; The service management device transmitting an INVITE message to the second user terminal via a second session start protocol proxy corresponding to the network connection information, wherein the INVITE message is an IP address and a service port of the media distribution apparatus. Contains information; Receiving, by the media distribution apparatus, electronic file information from the first user terminal after establishing a TCP connection and session with the first user terminal, wherein the electronic file information includes a file type and a file size; Receiving, by the service management apparatus, whether to be transmitted using the file size received from the media distribution apparatus; Determining, by the service management apparatus, whether a subscriber corresponding to the originating subscriber identification information is a prepaid subscriber; In the case of a prepaid subscriber, transmitting the subscriber details information request to the intelligent network data service control device to receive the subscriber details information, wherein the subscriber details information includes the first balance information, and the balance information includes the number of times of transmission, At least one of an available time and an available packet amount; When the first balance information is suitable for transmission of the file size with reference to the subscriber detail information, transmitting, by the service management device, a transferable response to the media distribution device; Transmitting, by the media distribution apparatus, an authentication success message to the first user terminal; The media distribution device receiving an electronic file from the first user terminal; And After the media distribution apparatus establishes a TCP connection and session with the second user terminal, transmitting the electronic file to the second user terminal via the second session start protocol proxy. Electronic file sending and receiving service method. The method of claim 8, Determining whether the first balance information is balance exhaustion information; And The electronic file transmission and reception service method of claim 1, further comprising transmitting a preset error message to the first user terminal. The method of claim 8, The service management device transmitting usage information corresponding to the electronic file to an intelligent network data service control device; And Receiving the updated second balance information from the intelligent network data service control device, wherein the usage information corresponds to at least one of the number of times of transmission, usage time, amount of use packets, The intelligent network data service control apparatus generates the second balance information by subtracting the usage information from the first balance information.

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