KR20060073671A - Method and system for providing multimedia message withdrawing service and mobile communication terminal thereof - Google Patents

Abstract

A method, system and mobile communication terminal for providing a multimedia message retrieval service.

An originating terminal capable of using a multimedia message service and generating and transmitting a retrieval request message for retrieving a erroneously transmitted multimedia message; A multimedia message service center for receiving and temporarily storing a multimedia message that is incorrectly transmitted through a mobile communication network, and deleting the incorrectly transmitted multimedia message when the recovery request message is received; And a user database interworking with the multimedia message service center and storing at least one of MIN, ESN, and available service information of the calling terminal. Provide a communication system.

According to the present invention, it is possible to delete an incorrectly transmitted multimedia message, thereby improving quality and reliability of the multimedia message service to the customer.

Multimedia message, recall request message, MMSC, MMS relay server

Description

Method and System for Providing Multimedia Message Withdrawing Service and Mobile Communication Terminal Thereof}

1 is a block diagram schematically illustrating a communication system for providing a multimedia message retrieval service according to a first embodiment of the present invention;

2 is a block diagram schematically illustrating a communication system for providing a multimedia message retrieval service according to a second embodiment of the present invention;

3 is a flowchart illustrating a process of recovering an incorrectly transmitted multimedia message according to a first embodiment of the present invention;

4 is a flowchart illustrating a process of recovering an incorrectly transmitted multimedia message according to a second embodiment of the present invention;

5 is a block diagram schematically illustrating an internal configuration of a mobile communication terminal having a multimedia message retrieval function according to an embodiment of the present invention.

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

110: calling terminal 120: mobile communication network

130: WAP gateway 140: MMSC

142: MMS relay server 144: MMS server                 

145: message collection processing unit 150: user database

160: home location register 170: MMS VAS application server

180: Internet / PSTN 190: External Server

191: email server 192: voice mail server

193: UMS Server 194: Fax Server

195: SMS server 196: SMSC

198: called terminal 210: Foreign MMSC

The present invention relates to a method, a system and a mobile communication terminal for providing a multimedia message retrieval service. More specifically, when the calling terminal transmits a multimedia retrieval request message by incorrectly transmitting the multimedia message in the mobile communication system, the multimedia message is temporarily deleted when the multimedia message transmitted incorrectly is not transmitted to the called terminal. A method, system and mobile communication terminal for providing a message retrieval service.

Since the Internet communication service, which is symbolized by the World Wide Web, has been in the spotlight, communication service has made a big difference in human life in all aspects of society, economy, and politics. Thus, in recent years, the spread of high-speed communication networks for using various communication services in an improved environment has been greatly increased.                         

However, while communication services such as the Internet using a computer have advantages in that data transmission speed is high and data input is convenient, communication service is no longer available when the communication service is no longer available. It has the disadvantage of using the service.

In recent years, wireless Internet services have been provided to provide communication services such as the Internet without restriction of a place. Wireless Internet service refers to the environment and technology that enables users to use Internet service through a wireless network while the user is moving. The development of technology related to mobile communication terminals and the rapid increase in penetration rate of mobile communication terminals further promote the development of such wireless Internet environment. In such a wired and wireless Internet environment, a user transmits and receives data in various formats such as text, voice, image, and video using a mobile communication terminal.

However, in the conventional wired and wireless Internet environment, data of various formats is not integratedly provided in one system and transmitted and received using different systems for each data format. For example, a short message is a system in which a short message service center (SMSC) is provided, and an e-mail is only serviced in a system environment having an e-mail server. . Therefore, there is a need for a system that supports and manages all data integrally regardless of the format of data transmitted and received. A service that satisfies this need is called a multimedia message service (MMS). to be.                         

MMS refers to a message service that enables the transmission and reception of multimedia information by processing, converting, and selecting data in various formats to be suitable for various multimedia service environments. MMS provides a function of transmitting and receiving multimedia information and e-mail to various devices desired by the user, away from the limited integrated service based on text or voice provided by a conventional Unified Message Service (UMS).

In addition, MMS supports the transmission and reception of data in various formats such as text, voice, image, and video regardless of the type of the terminal, and also supports the setting function of priority and validity period of data and streaming service. Application of such MMS enables various and differentiated services such as real-time stock service, business video conferencing, telemedicine service, and movie watching. Due to these advantages, MMS services are rapidly increasing in scope and frequency of use.

On the other hand, as the application range of the MMS service and the frequency of use increase, the multimedia message is often transmitted incorrectly. In other words, more and more users of an individual or a group using an MMS service transmit a wrong multimedia message or a wrong recipient. However, currently established MMS system or mobile communication terminal does not provide any service for recovering the wrongly transmitted multimedia message. Therefore, even if the caller knows that the wrong multimedia message is sent to the called party or the multimedia message is sent to the wrong caller can not cope with the situation is increasing customer complaints. In addition, when the wrong multimedia message is delivered, it causes wastage of communication resources, and an invalid billing request occurs at the entry side of the calling vehicle, thereby adversely affecting service quality and reliability.

In order to solve the above-mentioned problems, the present invention is temporarily storing when a multimedia message transmitted incorrectly is not transmitted to a called terminal when the calling terminal transmits a multimedia retrieval request message by transmitting a multimedia message incorrectly in a mobile communication system. An object of the present invention is to provide a method, system and mobile communication terminal for providing a multimedia message retrieval service for deleting a multimedia message.

According to a first object of the present invention for solving the above-mentioned problems, in a communication system for providing a multimedia message retrieval service that is incorrectly transmitted, a multimedia message service can be used, and the number of times for retrieving the wrongly transmitted multimedia message is available. A calling terminal for generating and sending a request message; A multimedia message service center for receiving and temporarily storing a multimedia message that is incorrectly transmitted through a mobile communication network, and deleting the incorrectly transmitted multimedia message when the recovery request message is received; And a user database interworking with the multimedia message service center and storing at least one of MIN, ESN, and available service information of the calling terminal. Provide a communication system.                     

According to a second object of the present invention, there is provided a method for providing an incorrectly transmitted multimedia message retrieval service, comprising: (a) receiving and storing an incorrectly transmitted multimedia message transmitted from a calling terminal by a multimedia message service center; (b) determining whether to transmit the incorrectly transmitted multimedia message when receiving a recovery request message requesting the recovery of the incorrectly transmitted multimedia message from the calling terminal; (c) deleting the erroneously transmitted multimedia message if the erroneously transmitted multimedia message has not been transmitted yet; And (d) generating a recovery success message or a recovery failure message indicating whether the recovery of the incorrectly transmitted multimedia message is successful and transmitting the recovery message to the originating terminal. Provides a way to provide.

According to a third object of the present invention, in a communication system for providing an incorrectly transmitted multimedia message retrieval service, it is possible to use a multimedia message service, and generate and transmit a retrieval request message for retrieving an incorrectly transmitted multimedia message. Calling terminal; A multimedia message service center configured to receive a multimedia message incorrectly transmitted through a mobile communication network and to receive the recall request message; A user database interworking with the multimedia message service center and storing at least one of MIN, ESN, and available service information of the calling terminal; And an externally connected multimedia message service center connected to the multimedia message service center to receive the wrongly transmitted multimedia message and the recall request message, and to delete the incorrectly transmitted multimedia message upon receiving the recall request message. It provides a communication system for providing an incorrectly transmitted multimedia message retrieval service comprising a.

According to a fourth object of the present invention, there is provided a method for providing an incorrectly transmitted multimedia message retrieval service, comprising: (a) receiving and storing an incorrectly transmitted multimedia message transmitted from a multimedia message service center by an external multimedia message center; (b) determining, by the Foreign MMSC, whether to transmit the incorrectly transmitted multimedia message when receiving the recovery request message requesting the recovery of the incorrectly transmitted multimedia message from the multimedia message service center; (c) the Foreign MMSC deleting the mistransmitted multimedia message if the mistransmitted multimedia message has not been transmitted yet; And (d) generating a recovery success message or a recovery failure message indicating whether the recovery of the wrongly transmitted multimedia message is successful and transmitting the message to the calling terminal. Provide a way to provide.

According to a fifth object of the present invention, in a mobile communication terminal for generating and transmitting a multimedia message, the mobile communication terminal generates and transmits a retrieval request message for requesting deletion of an incorrectly transmitted multimedia message. A mobile communication terminal having a function of retrieving an incorrectly transmitted multimedia message is provided.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a block diagram schematically illustrating a communication system for providing a multimedia message retrieval service according to a first embodiment of the present invention.

According to a first embodiment of the present invention, a communication system providing a multimedia message retrieval service includes a calling terminal 110, a mobile communication network 120, a WAP gateway 130, a multimedia message service center 140, and a user database 150. ), Home location register 160, MMS VAS application server 170, Internet / PSTN 180, external server 190, short message service center 196 and destination terminal 198 and the like. .

The calling terminal 110 is a mobile communication terminal having a function of creating and transmitting a multimedia message. In addition, the originating terminal 110 according to an embodiment of the present invention has a multimedia message recall request function for requesting the recovery of a multimedia message that is erroneously transmitted. The multimedia message retrieval request function may be implemented in the form of a menu in the multimedia message program mounted on the calling terminal 110. When the user requests the multimedia message recovery using the calling terminal 110, a multimedia message recovery request signal is generated and transmitted to the mobile communication network 120.

On the other hand, the originating terminal 110 is provided with a browser (Browser) that can be connected to the multimedia message service center 140 via the mobile communication network 120, and can transmit and receive multimedia data using a predetermined protocol. Can be. Such a browser may be a WAP browser, a mobile browser (ME) browser, an I-mode, etc., but is not limited thereto.

The mobile communication network 120 generally includes a base station (not shown) and a mobile switching center (not shown). The base station performs functions such as mobility guarantee, handoff, and radio support management of the mobile communication terminal 110. Such a base station comprises a base station transmitter (not shown) and a base station controller (not shown) and supports both synchronous and asynchronous. That is, the mobile communication network according to the embodiment of the present invention may include all IS-95 A / B / C network, CDMA-2000 network, WCDMA network, GMS network, the fourth generation mobile communication network to be implemented in the future.

Here, in the case of synchronous, the base station transmitter can be configured as a base transceiver station (BTS), the base station controller can be configured as a base station controller (BSC), and in the case of asynchronous mode, the base station transmitter is a radio transceiver subsystem (RTS) and the base station controller is an RNC ( It can be configured as a Radio Network Controller.

In addition, the mobile switching center performs basic and additional service processing, incoming and outgoing call processing of subscribers, location registration and handoff procedures, and interworking with other networks. In general, a mobile switching center in an Interim Standard (IS) -95 A / B / C system includes an Access Switching Subsystem (ASS) that performs distributed call processing, and an Interconnection Network Subsystem that performs centralized call processing. Sub-systems such as Central Control Subsystem (CCS), which is in charge of centralizing operation and maintenance, and Location Registration Subsystem (LRS), which stores and manages information on mobile subscribers.

The WAP gateway 130 performs a function of a gateway station that enables communication between a wireless communication network and a wired communication network. That is, the WAP gateway 130 converts text file data on the Internet into a binary code structure. Accordingly, the WAP gateway 130 receives an Internet service request from the originating terminal 110 by the WAP protocol, converts the HTTP message into a Hypertext Transfer Protocol (HTTP) protocol, and transmits it to the multimedia message service center 140. Conversely, when the WAP gateway 130 receives the response data by the HTTP protocol from the multimedia message service center 140, the WAP gateway 130 converts the response data into the WAP protocol and transmits the response data to the calling terminal 110.

A multimedia message service center (MMSC) 140 is a core component of a multimedia message service system according to an embodiment of the present invention, and performs a message transmission function between different message systems. do. Here, the MMSC 140 interfaces with respective systems and mobile communication terminals constituting the multimedia message service system using the MM7 protocol as shown in FIG. 1.

In detail, the MM7 protocol includes MM1 used for interfacing between the MMSC 140 and the mobile communication terminal, MM2 and MMSC 140 used for interfacing between the MMS relay server 142 and the MMS server 144 to be described later. There are MM3 used for interfacing between external servers 190 and MM4 used for interfacing between MMSC 140 and MMSCs installed in other mobile communication providers. In addition, the MM5 and MMSC 140 used for interfacing between the MMSC 140 and the MMSC 140 and the user database 150 to be described later will be described later. There is MM7 used for interfacing between MMS VAS applications 170. The specification and format for the MM7 protocol are defined in the 3rd Generation Partship Project (3GPP).

The MMSC 140 may transcode a multimedia message and an address format, a arrival guidance function of a multimedia message to a called terminal, a storage and management function of a multimedia message, a forwarding function of a multimedia message, Transcoding the type of multimedia message is performed. The MMSC 140 performing such a function is configured to include an MMS relay server 142 and an MMS server 144.

The MMS relay server 142 performs a function of relaying data or a signal such as a multimedia message with the calling terminal 110, the called terminal 198 and another MMSC (not shown).

The MMS server 144 receives a multimedia message transmitted from the calling terminal 110 in association with the MMS relay server 142, and transmits the received multimedia message to the called terminal 198. Perform. That is, the MMS server 144 is a device that performs all functions except for the data or signal relay function among the various functions of the MMSC 140 described above.

On the other hand, MMSC 140 according to an embodiment of the present invention is provided with a message recovery processor 145 performs a recovery function of a multimedia message that is incorrectly transmitted. When the multimedia message collection request signal is received from the calling party terminal 110, the message retrieving processor 145 determines whether the corresponding multimedia message is transmitted to the called party terminal 198. The message recovery processing unit 145 transmits a recovery failure message to the calling terminal 110 when the multimedia message has already been transmitted to the called terminal 198, and has not yet been sent to the called terminal 198. The multimedia message stored in the MMSC 140 is deleted. The message retrieval processing unit 145 which deletes the multimedia message transmits a retrieval success message to the calling terminal 110 to notify the retrieval success.

Meanwhile, according to an embodiment of the present invention, the message recovery processing unit 145 for recovering an incorrectly transmitted multimedia message may be configured as a module in the MMS server 144 as shown in FIG. It may be installed outside the 144 and interwork with the MMS server 144.

The user database 150 may store information related to a mobile identification number (MIN), an electronic serial number (ESN), profile information of a user, and location registration for supporting mobility in an MMS-enabled mobile communication terminal. Can be. That is, when the MMSC request is generated from the calling terminal 110 or the called terminal 198, the MMSC 140 uses the user database 150 to authenticate whether the corresponding terminal is a terminal capable of using the MMS. , Authenticate the user, and verify location information.

The home location register (HLR) 160 receives location information of a mobile communication terminal from a visitor location register (VLR) installed in a mobile switching center (not shown). Performs functions such as deleting location registration and checking location.

The MMS Value Added Service (VAS) application server 170 performs a function of supporting various types of multimedia message services in the MMS system by interworking with the MMSC 140. The MMS VAS application server 170 is typically connected to one MMSC 140 to provide various kinds of multimedia message services.

The external server 190 is connected to the MMSC 140 through the Internet / Public Switched Telephone Network (PSTN) 180 to enable data services in various formats such as e-mail, voice mail, integrated message service, fax, and short message. Support. The external server 190 that enables data services of various formats may include an email server 191, a voice mail server 192, a UMS server 193, a fax server 194, an SMS server 195, and the like. Can be. Each of these servers 191-195 interacts with the MMSC 140 using a respective protocol. For example, the e-mail server 191 interworks with the MMSC 140 by using the Simple Mail Transfer Protocol (STMP), which is a type of the Transfer Control Protocol / Internet Protocol (TCP / IP) protocol.

The short message service center (SMSC: SMSSC) 196 generally receives and temporarily stores a short message transmitted from a calling terminal or an SMS server, and then temporarily stores the short message to a called terminal or a called server. Perform the function of transmitting (Store and Forward). The SMSC 196 generates a multimedia arrival message, a recovery success message, a recovery failure message, etc. at the request of the SMS server 195 and transmits the multimedia arrival message to the calling terminal 110 or the called terminal 198.

In more detail, the MMSC 140 receives a multimedia message arrival message when receiving a multimedia message from the calling terminal 110, a recovery success message when the recovery of the multimedia message is successful, and a recovery failure message when the recovery of the multimedia message fails. Request the SMS server 196 to generate and send. The SMS server 196 receiving the request for generating and transmitting each message from the MMSC 140 generates each message and transmits the message to the calling terminal 110 or the called terminal 198 through the SMSC 196.

When the destination terminal 198 receives the multimedia message arrival message from the MMSC 140, the called terminal 198 accesses the MMSC 140 through the mobile communication network 120 and the WAP gateway 130, and receives and plays the corresponding multimedia message. do. Here, the multimedia message arrival message is a callback URL message in which URL (Uniform Resource Location) information of the MMSC 140 is recorded so that the called terminal 198 can access the MMSC 140 through the wireless Internet.

In addition, the called terminal 198 may be connected to the multimedia message service center 140 via the mobile communication network 120, and a browser may be installed for receiving multimedia data using a predetermined protocol. . Such a browser may be a WAP browser, a mobile browser (ME) browser, an I-mode, etc., but is not limited thereto.

On the other hand, the calling terminal 110 or the called terminal 198 according to an embodiment of the present invention is a PDA (Personal Digital Assistant), a cellular phone (Celluar Phone), PCS (Personal Communication Service) phone, handheld PC (Hand) -Held PC), GSM (Global System for Mobile) phone, Wideband CDMA (WCDMA) phone, CDMA-2000 phone, Mobile Broadband System (MBS) phone and the like. Here, MBS phone refers to a mobile phone to be used in the fourth generation communication system in the future.

2 is a block diagram schematically illustrating a communication system for providing a multimedia message retrieval service according to a second embodiment of the present invention.

The multimedia message retrieval service according to the first embodiment of the present invention is a case where the calling terminal 110 and the called terminal 198 use the same MMSC 140, whereas the multimedia message according to the second embodiment of the present invention. The retrieval service is when the calling terminal 110 and the called terminal 198 use different MMSCs. In this case, when the other MMSC is used, the calling party terminal 110 and the called party terminal 198 are subscribed to the same mobile communication company, but the MMSC to be used differs depending on the location of each terminal 110 and 198. This includes the case where the side terminal 110 and the called terminal 198 are subscribed to different mobile communication companies. In FIG. 2, the same reference numerals are used for the same elements as in FIG. 1, and detailed descriptions of the same elements are omitted in the detailed description of FIG. 2.                     

The MMSC 140 that receives the retrieval request message for the multimedia message transmitted incorrectly from the calling terminal 110 confirms the telephone number of the called terminal 198 included in the retrieval request message. The MMSC 140, which has confirmed the telephone number of the called terminal 198, contacts the home location register 160 to find out the foreign MMSC 210, which is outside the jurisdiction where the called terminal 198 is located. .

The MMSC 140 grasping the external MMSC 210 transmits a recovery request message for the multimedia message transmitted incorrectly by the calling terminal 110. The recovery request message transmitted from the MMSC 140 to the external MMSC 210 includes information on the recovery request, a telephone number of the calling terminal 110, a telephone number of the called terminal 198, and the like. Here, the information on the retrieval request includes code information for informing the retrieval request of the multimedia message, information on the multimedia message to be retrieved, and the like. On the other hand, the external MMSC 210 and MMSC 140 transmits and receives data using the MM4 protocol of the MM7 protocol.

The external MMSC 210 that receives the retrieval request message from the MMSC 140 checks the multimedia message to be retrieved using the retrieval request message and checks whether the checked multimedia message has already been transmitted to the called terminal 198. If it is determined that the multimedia message to be retrieved has not yet been transmitted to the called terminal 198, the external MMSC 210 sends a recovery success message to the MMSC 140 and deletes the multimedia message temporarily stored. That is, the external MMSC 210 further includes a message retrieval processing unit (not shown) for deleting an incorrectly transmitted multimedia message like the MMSC 140 described with reference to FIG. 1. Here, the external MMSC 210 may transmit a recovery notification message indicating that the external MMSC 210 has been deleted before or after deleting the corresponding multimedia message because the external MMSC 210 deletes the multimedia message.

3 is a flowchart illustrating a process of recovering an incorrectly transmitted multimedia message according to a first embodiment of the present invention.

First, the calling terminal 110 uploads a multimedia message to the MMSC 140 to be sent to the called terminal 198 (S302). Here, it is assumed that the multimedia message uploaded from the calling terminal 110 to the MMSC 140 is a multimedia message that is incorrectly transmitted. The MMSC 140 receives and temporarily stores the multimedia message, and receives a multimedia message arrival short message (hereinafter referred to as an arrival short message) that informs the destination terminal 198 of the arrival of the multimedia message. In operation S304, the SMS server 195 requests to transmit the data to the SMS server 195.

The SMS server 195 that has received the request for the arrival of the short message from the MMSC 140 generates the short message and transmits the short message to the SMSC 196 (S306). Upon receiving the short message, the SMSC 196 detects the location of the called terminal 198 and transmits the short message to the mobile terminal 120 through the corresponding mobile communication network 120 (S308).

On the other hand, the user of the calling terminal 110 is a multimedia message recovery request message (hereinafter, referred to as a "recovery request message") by using the multimedia message recovery function mounted on the calling terminal 110 in order to recover the incorrectly transmitted multimedia message And writes it to the MMSC 140 (S310). Upon receiving the retrieval request message, the MMSC 140 determines whether the corresponding multimedia message has already been transmitted to the called terminal 198 (S312).

If the MMSC 140 determines that the corresponding multimedia message has already been transmitted to the called terminal 198, the MMSC 140 generates a recovery failure message and transmits it to the calling terminal 110 (S313). Otherwise, if the MMSC 140 determines that the multimedia message has not been transmitted to the called terminal 198 as a result of the determination in step S312, the MMSC 140 deletes the multimedia message stored temporarily (S314). Then, the MMSC 140 generates a recovery success message and transmits it to the calling terminal 110 (S316).

4 is a flowchart illustrating a process of recovering an incorrectly transmitted multimedia message according to a second embodiment of the present invention.

First, the calling terminal 110 uploads a multimedia message to be sent to the called terminal 198 to the MMSC 140 (S402). Here, it is assumed that the multimedia message uploaded from the calling terminal 110 to the MMSC 140 is a multimedia message that is incorrectly transmitted as in FIG. 3. The MMSC 140 receives the multimedia message and uses the phone number of the called terminal 198 included in the received multimedia message to grasp the Foreign MMSC 210 having jurisdiction over the area where the called terminal 198 is located. The received multimedia message is transmitted (S404).

Upon receiving the multimedia message transmitted from the MMSC 140, the Foreign MMSC 210 requests the SMS server 196 to transmit the arrival short message to the called terminal 220 (S406). The SMS server 196 receiving the request for the transmission of the arrival short message from the foreign MMSC 210 generates an arrival short message and transmits the arrival short message to the SMSC 210 (S408). SMSC 196 receiving the arrival short message determines the location of the called terminal 198 and transmits the arrival short message through the corresponding mobile communication network 120 (S410).

On the other hand, the user of the calling terminal 110 to create a recovery request message using the multimedia message recovery function mounted on the calling terminal 110 in order to recover the incorrectly transmitted multimedia message to the MMSC 140 ( S412). Upon receiving the recovery request message, the MMSC 140 transmits a recovery request message to the Foreign MMSC 210 (S414). Upon receiving the retrieval request message, the Foreign MMSC 210 determines whether the corresponding multimedia message has already been transmitted to the called terminal 198 (S416).

If the foreign MMSC 210 determines that the corresponding multimedia message has already been transmitted to the called terminal 198, the MMSC 210 generates a recovery failure message and transmits it to the calling terminal 110 (S417). Otherwise, when it is determined in step S416 that the multimedia message has not been transmitted to the called terminal 198, the Foreign MMSC 210 deletes the multimedia message stored temporarily (S418). Then, the Foreign MMSC 210 generates a recovery success message and transmits it to the calling terminal 110 (S420).

5 is a block diagram schematically illustrating an internal configuration of a mobile communication terminal having a multimedia message retrieval function according to an embodiment of the present invention.

A mobile communication terminal according to an exemplary embodiment of the present invention includes a program memory unit 502, a parameter storage unit 504, a key input unit 506, a liquid crystal display (LCD) display unit 508, and a data storage unit 510. Subscriber Identity Module (SIM) 512, Microprocessor 520, Digital Signal Processor (DSP) 530, Baseband Converter 540, RF Signal The processor 550 includes a speaker 560, a microphone 570, an RF antenna 580, and the like.

The program memory unit 502 stores protocol software for implementing a function of the mobile communication terminal itself and for modulating and demodulating packet data or signals transmitted and received through a wireless Internet network. Also, there is stored a multimedia message retrieval program having a retrieval function of a multimedia message erroneously transmitted according to an embodiment of the present invention. The multimedia message retrieval program may provide a multimedia message retrieval function by a menu or the like. When a key value for retrieving the multimedia message is input from the user, the multimedia message retrieval program generates and transmits a retrieval request message. That is, the multimedia message retrieval program displays the details of the multimedia message transmitted by the mobile communication terminal, checks the retrieved multimedia message selected by the user, and records and transmits the information on the retrieved multimedia message in the retrieve request message.

The parameter storage unit 504 may store or store various parameters defined in 3GPP (3GPP), 3GPP2, etc. so that the mobile communication terminal may transmit and receive a multimedia message through a wireless Internet network. Accordingly, the protocol software stored in the program memory unit 52 generates and transmits and receives a multimedia message using the parameters stored in the parameter storage unit 504.

The key input unit 506 is provided with a plurality of key buttons for inputting various data such as numbers and letters. Therefore, the user may operate the multimedia message recovery program by operating a key button provided in the key input unit 506 to use the multimedia message recovery function.

The LCD display unit 508 displays the operation state of the mobile communication terminal, including the state of use of the battery, the reception strength of radio waves, the date, the time, and the like. In addition, the LCD display unit 508 displays an arrival short message, a recall success message, a recall failure message, a recall notification message, a multimedia message, and the like.

The data storage unit 510 functions as a data buffer when executing an operation program of the mobile communication terminal, and temporarily stores data such as numbers or letters input by the key input unit 506 or from a mobile communication network. Stores multimedia messages sent.

The subscriber information storage unit 512 stores a MIN, an ESN, a personal security key, and various data necessary for the operation of the mobile communication terminal. The subscriber information storage unit 512 is also called a SIM card because it is inserted into a slot in the mobile communication terminal in the form of a card, and performs an interface function between the mobile communication terminal and a wired / wireless communication network.

The microprocessor 520 controls the overall operation of the mobile communication terminal, and the digital signal processing unit 530 codes or decodes voice and data, and as an equalizer to remove multipath noise. It is a functioning digital signal processor. In addition, the digital signal processor 530 exchanges audio data SPEECH from the baseband converter 540 and receives data from the baseband converter 340 (RX DATA).                     

The baseband converter 540 converts a signal transmitted / received between the RF signal processor 550 and the digital signal processor 530, the speaker 560, and the microphone 570 into a signal of a bandband band, and converts a digital-analog signal. It performs functions such as (ADC: Analog to Digital Conversion). In addition, the baseband converter 540 transmits the transmission data (TXIQ) to the RF signal processor 550, and controls the power (POWER) of the RF signal processor 550 or automatically controls the gain (AGC). The RF signal processor 550 receives the received signal RXIQ.

The RF signal processor 550 demodulates and amplifies an RF signal received from the RF antenna 580, modulates a transmission signal applied from the baseband converter 540, and transmits the modulated signal to a propagation space. The speaker 560 outputs audio data transmitted from the baseband converter 540 as an audible sound, and the microphone 570 electrically converts a user's voice input.

The above description is merely illustrative of the present invention, and those skilled in the art will appreciate that various modifications can be made without departing from the essential features of the present invention. Accordingly, the embodiments disclosed herein are not intended to limit the present invention but to describe the present invention, and the spirit and scope of the present invention are not limited by these embodiments. It is intended that the scope of the invention be interpreted by the following claims, and that all descriptions within the scope equivalent thereto shall be construed as being included in the scope of the present invention.

 As described above, according to the present invention, since it is possible to recover the wrongly transmitted multimedia message, the sender can save the service fee for transmitting the wrong multimedia message, and the receiver can reduce the possibility of receiving the wrong multimedia message. There is this.

In addition, it is possible to prevent the waste of communication system resources for transmitting the wrong multimedia message has the effect of improving the operation efficiency and reliability of the communication system.

Claims (30)

A communication system for providing a wrong message transmission service for multimedia messages, A calling terminal capable of using a multimedia message service (MMS), generating and transmitting a retrieval request message for retrieving an incorrectly transmitted multimedia message; A multimedia message service center (MMSC) for receiving and temporarily storing a multimedia message that is incorrectly transmitted through a mobile communication network, and deleting the incorrectly transmitted multimedia message when the recall request message is received; And A user database interworking with the multimedia message service center and storing at least one of a mobile identification number (MIN), an electronic serial number (ESN), and available service information of the calling terminal. A communication system for providing an incorrectly transmitted multimedia message retrieval service comprising a. The method of claim 1, The multimedia message service center further includes a message retrieval processing unit which, upon receiving the retrieval request message, checks whether the incorrectly transmitted multimedia message has already been transmitted to the called terminal, and deletes it if not transmitted. A communication system for providing a multimedia message recovery service transmitted. The method of claim 2, wherein the multimedia message service center is An MMS relay server configured to relay the incorrectly transmitted multimedia message and the retrieval request message transmitted from the originating terminal through the mobile communication network; And An MMS server that receives, stores, and deletes the incorrectly transmitted multimedia message in association with the MMS relay server, and generates and transmits at least one message of a recovery success message, a recovery failure message, and a recovery notification message. A communication system for providing a wrongly transmitted multimedia message retrieval service, characterized in that configured to include. The method of claim 1, The caller terminal is a communication system for providing an incorrectly transmitted multimedia message retrieval service, characterized in that a multimedia message retrieval program is operable to generate and transmit the retrieval request message for retrieval of the wrongly transmitted multimedia message. . The method according to claim 1 or 4, The retrieval request message may include at least one of identification information on the incorrectly transmitted multimedia message, code information indicating a retrieval request message, and information on a called terminal. Providing communication system. The method of claim 1, The communication system is provided with a WAP (Wireless Application Protocol) gateway for transmitting and receiving multimedia messages and data, including the multimedia message and the wrong transmission of the multimedia terminal and providing the wrong transmission message Communication system. According to claim 1, And a home location register (HLR) in which the location information of the called terminal to which the wrongly transmitted multimedia message is to be transmitted is further installed. In the method for providing an incorrectly transmitted multimedia message retrieval service, (a) receiving and storing an incorrectly transmitted multimedia message transmitted from a calling terminal by a multimedia message service center (MMSC); (b) determining whether to transmit the incorrectly transmitted multimedia message when receiving a recovery request message requesting the recovery of the incorrectly transmitted multimedia message from the calling terminal; (c) deleting the erroneously transmitted multimedia message if the erroneously transmitted multimedia message has not been transmitted yet; And (d) generating a recovery success message or a recovery failure message indicating whether the recovery of the wrongly transmitted multimedia message is successful and transmitting the message to the calling terminal; A method for providing an incorrectly transmitted multimedia message retrieval service comprising a. The method of claim 8, wherein in step (b) The recovery request message provides the incorrectly transmitted multimedia message recovery service, characterized in that at least one of identification information about the multimedia message transmitted incorrectly, code information indicating that the recovery request message, and information on the called terminal. How to. The method of claim 8, wherein in step (d) The recovery success message is generated and transmitted when the incorrectly transmitted multimedia message is not yet transmitted to the called party's terminal, thereby deleting the incorrectly transmitted multimedia message. Way. The method of claim 8, wherein in step (d) And the retrieval failure message is generated and transmitted when the erroneously transmitted multimedia message has already been transmitted to the called terminal. The method of claim 8, And if the multimedia message service center deletes the incorrectly transmitted multimedia message, generating and transmitting a retrieval notification message informing the called terminal of the deletion of the incorrectly transmitted multimedia message. A method for providing a sent multimedia message retrieval service. A communication system for providing a wrong message transmission service for multimedia messages, A calling terminal capable of using a multimedia message service (MMS), generating and transmitting a retrieval request message for retrieving an incorrectly transmitted multimedia message; A multimedia message service center (MMSC) for receiving a multimedia message incorrectly transmitted through a mobile communication network and receiving the recall request message; A user database interworking with the multimedia message service center and storing at least one of a mobile identification number (MIN), an electronic serial number (ESN), and available service information of the calling terminal; And A multimedia message service center that is connected to the multimedia message service center and receives an incorrectly transmitted multimedia message and the retrieval request message, and which is connected to a called terminal that deletes the incorrectly transmitted multimedia message when the retrieval request message is received; Hereinafter referred to as 'Foreign MMSC') A communication system for providing an incorrectly transmitted multimedia message retrieval service comprising a. The method of claim 13, The multimedia message service center transmits an incorrectly transmitted multimedia message or a retrieval request message to a home location register (HLR) in which location information of the called terminal is stored in order to deliver the wrongly transmitted multimedia message or the retrieval request message to the Foreign MMSC. System for providing a multimedia message retrieval service. The method of claim 13, The Foreign MMSC further includes a message retrieval processing unit which, upon receiving the retrieval request message, checks whether or not the incorrectly transmitted multimedia message has already been transmitted to the called terminal and deletes it if it is not transmitted. A communication system for providing a multimedia message recovery service transmitted. The method of claim 13, The caller terminal is a communication system for providing an incorrectly transmitted multimedia message retrieval service, characterized in that a multimedia message retrieval program is operable to generate and transmit the retrieval request message for retrieval of the wrongly transmitted multimedia message. . The method of claim 13, The communication system is provided with a WAP (Wireless Application Protocol) gateway for transmitting and receiving multimedia messages and data, including the multimedia message and the wrong transmission of the multimedia terminal and providing the wrong transmission message Communication system. The method of claim 13, And the multimedia message service center and the foreign MMSC transmit and receive the incorrectly transmitted multimedia message and the retrieval request message using an MM4 protocol. The method of claim 13, The foreign MMSC is a communication system for providing an incorrectly transmitted multimedia message retrieval service, characterized in that the system is operated by a mobile communication company different from the mobile communication company subscribed to the calling terminal. In the method for providing an incorrectly transmitted multimedia message retrieval service, (a) receiving and storing an incorrectly transmitted multimedia message transmitted from a multimedia message service center (MMSC) by an external multimedia message center (hereinafter referred to as 'Foreign MMSC'); (b) determining, by the Foreign MMSC, whether to transmit the incorrectly transmitted multimedia message when receiving the recovery request message requesting the recovery of the incorrectly transmitted multimedia message from the multimedia message service center; (c) the Foreign MMSC deleting the mistransmitted multimedia message if the mistransmitted multimedia message has not been transmitted yet; And (d) generating a retrieval success message or a retrieval failure message indicating whether the retrieval of the wrongly transmitted multimedia message is successful and transmitting the retrieval message to the calling terminal; A method for providing an incorrectly transmitted multimedia message retrieval service comprising a. The method of claim 20, wherein in step (a) or step (b) And the multimedia message service center receives the incorrectly transmitted multimedia message and the retrieval request message from a calling terminal and transmits the received multimedia message to the Foreign MMSC. The method of claim 20, wherein in step (a) or step (b) The multimedia message service center checks the information of the called terminal included in the incorrectly transmitted multimedia message and the retrieval request message to identify the Foreign MMSC connected to the called terminal. How to Provide Recall Services. The process of claim 20, wherein in step (b) The recovery request message provides the incorrectly transmitted multimedia message recovery service, characterized in that at least one of identification information about the multimedia message transmitted incorrectly, code information indicating that the recovery request message, and information on the called terminal. How to. The method of claim 20, wherein in step (d) The retrieval success message is generated and transmitted when the erroneously transmitted multimedia message is not yet transmitted to the called party's terminal and the erroneously transmitted multimedia message is deleted. How to. The method of claim 20, wherein in step (d) And the retrieval failure message is generated and transmitted when the erroneously transmitted multimedia message has already been transmitted to the called terminal. The method of claim 20, And if the multimedia message service center deletes the incorrectly transmitted multimedia message, generating and transmitting a retrieval notification message informing the called terminal of the deletion of the incorrectly transmitted multimedia message. A method for providing a sent multimedia message retrieval service. The method of claim 20, wherein in step (d) And the Foreign MMSC transmits the recovery success message and the recovery failure message to the calling terminal through the multimedia message service center. In the mobile terminal for generating and transmitting a multimedia message, The mobile communication terminal has a multimedia message retrieval function of the wrong transmission, characterized in that the multimedia message recovery program for generating and transmitting a recovery request message for requesting the deletion of the multimedia message transmitted incorrectly. The method of claim 28, The mobile communication terminal has a function of recovering an incorrectly transmitted multimedia message, wherein the recovery request message includes identification information on the incorrectly transmitted multimedia message and code information indicating a recovery request message. The method of claim 28, The multimedia message retrieval program is a function of retrieving an incorrectly transmitted multimedia message, characterized in that the display of the details of one or more multimedia messages transmitted from the mobile communication terminal is coded to enable selection of the incorrectly transmitted multimedia message. Mobile communication terminal having a.

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