KR20060094548A - Method and system for providing voice mail by using 3g 324m image call - Google Patents

Abstract

The present invention relates to a system and method for providing a video mailbox using a 3G 324M video telephone.

In order to achieve the above object, the present invention provides a video communication system comprising: 324 MMC for storing a video message transmitted from a calling terminal and providing a stored video message according to a request for providing a video message from a receiving terminal; 324 when the video message is stored in the MMC, SMSC for generating and sending a text message informing the storage of the video message to the receiving terminal; And a WCDMA network providing a voice call and a 3G 324M video call service between the calling terminal and the receiving terminal, delivering a video message from the calling terminal to the 324 MMC, and providing the video message from the 324 MMC to the receiving terminal.

According to the present invention, when there is no response from the receiver in the video call system, the inconvenience of the sender writing and transmitting a video message is eliminated, and the service provider may improve the service satisfaction of the customer and generate revenue.

Video Phone, 3G 324M, Video Mailbox, Video Message, 324 MMC, WCDMA

Description

System and method for providing video mailbox using 3Ｇ 324M video call {Method and System for Providing Voice Mail by Using 3G 324M Image Call}

1 is a schematic view showing a video mailbox providing system according to a preferred embodiment of the present invention;

2 is a flowchart illustrating a video mailbox service method when a receiving terminal sets an unconditional switch according to an exemplary embodiment of the present invention;

3 is a flowchart illustrating a video mailbox service method when a receiving terminal is busy or turned off according to an exemplary embodiment of the present invention;

4 is a flowchart illustrating a video mailbox service method when a receiving terminal does not respond according to an embodiment of the present invention;

5 is a flowchart illustrating a method of confirming a video message stored in a video mailbox by a receiving terminal according to an exemplary embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

110: calling terminal 120: WCDMA network

122: switching center (MSC) 124: home location register (HLR)

130: radio access network (RAN) 132: base station transmitter (RTS)

134: Radio Control Station (RNC) 140: Short Message Center (SMSC)

150: customer information distribution server (CDS) 152: customer management system (COIS)

160: 324 MMC 162: Subscriber Processing Server (SPS)

164: SS7 signal box 166: 324 MPS

168: switch 170: storage server

172: Media Codec Conversion Server (MTS) 174: Email Transfer Server (MTG)

180: receiving terminal

The present invention relates to a system and method for providing a video mailbox using a 3G 324M video telephone. More specifically, in the 3G 324M video call service, when the receiving terminal fails to receive the call due to unconditional switching, busy or power off, if the calling terminal user leaves a video message using the video mailbox, the receiving terminal user leaves the video mailbox. The present invention relates to a video mailbox providing system and method using a 3G 324M video telephone to access and check stored video messages.

With the rapid development of computer, electronic and communication technologies, various wireless communication services using wireless networks have been provided. In particular, a wireless Internet service has recently emerged to provide a communication service using the Internet through a wireless communication network while the user of the mobile communication terminal moves without restriction of a place. Therefore, the subscribers of the mobile communication service can freely move and talk with the other party anytime and anywhere by using the wireless communication service, and also provide various information such as news, weather, sports, securities, exchange rates, and traffic information through the wireless Internet service. Information can be provided in various forms such as text, voice, and image.

In order to provide such a service, a mobile communication system has been developed through a first generation analog AMPS (Advanced Mobile Phone Systems) system and a second generation cellular (PCS) / personal communication service (PCS) system. Recently, IMT-2000 (International Mobile Telecommunication-2000), a third generation high speed data communication, has been used. IMT-2000 was developed for personal mobility guarantee and high-speed data transmission to ensure mobility between countries by integrating systems of countries using different wireless access standards. It is developed separately from synchronous CDMA 2000 and asynchronous WCDMA. It became.

In the second generation method, protocol design technology, modem utilization technology, and voice signal processing technology were important factors, but multimedia signal processing technology, which can transmit / receive moving images as the third generation method, is also an important core technology of the terminal. Perched.

The third generation video standard defined by 3GPP is 3G 324M, which uses the H.263 video codec, the H.223 multiplexing protocol, the H.245 control protocol, and the G.723 voice codec. Is recommended.

Here, the H.263 video codec is a coding algorithm studied by ITU-TS in 1995 for the purpose of video telephony and is a recommendation for compressing video data at low bit rate. It adopts a complex compression method that removes temporal redundancy through inter-frame prediction and spatial redundancy using DCT (Discrete Cosine Transform), and supports five resolutions: QCIF, CIF, SQCIF, 4CIF, and 16CIF.

H.223 Multiplexing Protocol is a packet-based multiplexing protocol for low-rate multimedia communications. It provides a method of decomposing or combining information on multiple logical channels in a single packet with low latency and low overhead.

The H.245 control protocol is a protocol that initiates communication between the calling terminal and the receiving terminal, and defines the meaning and rules of the necessary procedures and various terminal information messages during the communication. Contains controls and instructions. It also defines ACK signaling procedures for reliable audio, video and data communications.

The G.723 voice codec is a codec for compressing a voice or audio signal at a low bit rate and compresses the audio signal at 5.3 Kbps or 6.3 Kbps. The G.723 voice codec uses either Multipulse Maximun Likelihood Quantization (MP-MLQ) or Algebraic Codebook Excited Linear Prediction (ACELP), depending on the bit rate supported. Since the MP-MLQ method and the ACELP method are well known to those skilled in the art, details thereof will be omitted.

Implementing such a 3G 324M on the CDMA 2000 1X EV-DO circuit network has a limitation in providing a stable and complete service, while the WCDMA system is capable of making a call even if the user moves at a speed of about 100 km / h. Because of its high mobility and its spread spectrum method, it has the advantage of being suitable for a large amount of data transmission. When implementing 3G 324M, it occupies 64 Kbps channel to provide more stable and high quality service. can do.

In the video call service using the 3G 324M, if a caller requests a video call but the callee does not receive the call due to unconditional switching, a call, or a power-off, a message indicating that there is no response from the callee. After providing, the connection is set to terminate.

Therefore, when a caller wants to transmit a video message to a receiver, the sender creates a video message using a calling terminal and transmits the video message to a receiving terminal through a multimedia message service (MMS).

Meanwhile, in transmitting a video message from a calling terminal to a receiving terminal, a conventional video message transmitting method uses WAP or HTTP to edit a message to be sent from a calling terminal and transmit the message to a video message server. This is a method of directly transmitting the video message transmitted to the network. Since a video message including both audio data and image data has a large capacity, when the transmitted video message is larger than the remaining capacity of the memory of the receiving terminal, the receiving terminal may not receive the video message.

In order to solve this problem, the present invention, in the 3G 324M video call service, if the receiving terminal unconditionally switched, during a call, the power off, etc., if the calling terminal user leaves a video message using a video mailbox, It is an object of the present invention to provide a system and method for providing a video mailbox using a 3G 324M video telephone that a receiving terminal user accesses a video mailbox and checks a stored video message.

In order to achieve the above object, the present invention provides a video mailbox providing system in which a user of a calling terminal stores a video message and provides it to the receiving terminal when the receiving terminal does not receive a video call request in the 3G 324M video calling service. A 324 multimedia message center (MMC) for storing a video message transmitted from a terminal and providing a stored video message according to a request for providing a video message from a receiving terminal; 324 If the video message is stored in the MMC, SMSC (Short Message Service Center) for generating and sending a text message informing the storage of the video message to the receiving terminal; And a WCDMA network providing a voice call and a 3G 324M video call service between the calling terminal and the receiving terminal, delivering a video message from the calling terminal to the 324 MMC, and providing the video message from the 324 MMC to the receiving terminal. It provides a video mailbox providing system characterized in.

In addition, in order to achieve the second object of the present invention, if a video call request is input to the receiving terminal in the 3G 324M video call service using the WCDMA network, 324 MMC (Multimedia Message Center) for storing the video call request video message; When the 'unconditional switch' is set to, the video message storage method in the video mailbox service that the user of the calling terminal stores the video message, comprising the steps of: (a) inputting a video call request from the calling terminal; (b) checking an 'unconditional switch' state of a receiving terminal in a home location register (HLR) of a WCDMA network; (c) transmitting a video mailbox switch message notifying the video mailbox switch to the calling terminal; (d) proceeding with H.245 negotiation between the originating terminal and the 324 MMC to create an H.245 session; (e) receiving a video message from an originating terminal when an H.245 session is created; And (f) storing the video message and terminating the H.245 session and call.

In addition, in order to achieve the third object of the present invention, when a video call request is input to the receiving terminal in the 3G 324M video call service using the WCDMA network, but the receiving terminal is busy or turned off, the video call connection is not made, A video message storage method in a video mailbox service in which a user of a calling terminal stores a video message in a 324 multimedia message center (MMC), the method comprising: (a) inputting a video call request from a calling terminal; (b) checking whether the receiving terminal is busy or off; (c) transmitting a video mailbox switch message notifying the video mailbox switch to the calling terminal; (d) proceeding with H.245 negotiation between the originating terminal and the 324 MMC to create an H.245 session; (e) receiving a video message from an originating terminal when an H.245 session is created; And (f) storing the video message and terminating the H.245 session and call.

Further, in order to achieve the fourth object of the present invention, when a video call request is input to a receiving terminal in a 3G 324M video calling service using a WCDMA network, but the receiving terminal does not respond, the calling terminal is not established. A video message storage method in a video mailbox service in which a user of a 324 stores a video message in a multimedia message center, comprising: (a) inputting a video call request from a calling terminal; (b) transmitting a video call request signal to a receiving terminal and waiting for a response to the video call request signal; (c) if there is no response from the receiving terminal for a predetermined time, transmitting a video mailbox switching message informing the calling terminal of the switching of the video mailbox; (d) proceeding with H.245 negotiation between the originating terminal and the 324 MMC to create an H.245 session; (e) receiving a video message from an originating terminal when an H.245 session is created; And (f) storing the video message and terminating the H.245 session and call.

In addition, in order to achieve the fifth object of the present invention, in a 3G 324M video call service using a WCDMA network, a receiving terminal accesses a 324 multimedia message center (MMC) and checks stored video messages. Inputting a video mailbox access request signal from the apparatus; (b) proceeding with H.245 negotiation between the receiving terminal and the 324 MMC to generate an H.245 session; (c) receiving a video message stored in the 324 MMC via a session; And (d) terminating the H.245 session and call when transmission of the video message is completed.

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 configuration diagram schematically showing a video mailbox providing system according to a preferred embodiment of the present invention.

The video mailbox providing system according to the present invention includes a calling terminal 110, a WCDMA network 120, a short message center 140, a customer information distribution server 150, a customer management system 152, and a 324 multimedia center (MMC). Message Center, hereinafter referred to as 'MMC' 160, and the receiving terminal 180.

The calling terminal 110 and the receiving terminal 180 can make a voice and video call through the WCDMA network 120, and automatically perform a session setting procedure and transmit / receive data according to a session establishment request from the WCDMA network 120. Is an asynchronous terminal. To this end, the calling terminal 110 and the receiving terminal 180 support the aforementioned H.263 video codec, H.223 multiplexing protocol, H.245 control protocol, and G.723 voice codec to the WCDMA network 120. 3G 324M video data is transmitted and received.

The WCDMA network 120 includes a radio access network (RAN) 130, a switching center (MSC: Mobile Switching Center) (MSC) 122, and a home location register (HLR). A mobile communication network that transmits and receives packet data to and from the 324 MMC 160, the Internet network, and other mobile communication networks.

The RAN 130 is a base station transmitter (RTS: Radio Transceiver Subsystem, hereinafter referred to as 'RTS') 132 and a radio control station (RNC) for accommodating a radio access standard of 3rd Generation Partnership Project (3GPP) standard to support WCDMA. Radio Network Controller (hereinafter referred to as 'RNC') 134. The RAN 120 receives a video call request signal from the calling terminal 110 and transmits it to the MSC 122 and transmits a video call request signal from the MSC 122 to the receiving terminal 180. .

The RTS 132 performs a radio access termination function with the originating terminal 110 and the receiving terminal 180 according to the 3GPP radio access standard, and transmits and receives image data such as voice and video by the WCDMA method and a transmission and reception antenna. It performs a function of transmitting and receiving information with the calling terminal 110 and the receiving terminal 180. In general, the internal subsystem of the RTS 132 is composed of a base-station interconnection subsystem (BIS), a base band subsystem (BBS), and a radio frequency subsystem (RF). In addition, RTS is also used under the name 'Node B' in the 3GPP radio access standard.

The RNC 134 manages wired and wireless channels, protocol matching of the calling terminal 110 and the receiving terminal 180, and protocol matching of the base station. It handles functions such as soft handoff processing, protocol matching with core network, fault management, and system loading, and handles call signals and data between RTS 132 and MSC 122. It serves to convey.

The MSC 122 is a system that provides a call service by connecting the calling terminal 110 and the receiving terminal 180 in response to a call request from the calling terminal 110. The MSC 122 is an Access Switching Subsystem (ASS) that performs distributed call processing, an Interconnection Network Subsystem (INS) that performs centralized call processing, and central control that is in charge of centralizing operation and maintenance. Subsystem), and a Subsystem such as a Location Registration Subsystem (RLS) that performs a function of storing and managing information on a mobile subscriber. In addition, the MSC 122 performs a function of routing data and provides an interface for connecting the WCDMA network 120 and the 324 MMC 160.

The HLR 124 performs functions such as registration recognition, registration deletion, and location checking of the calling terminal 110 and the receiving terminal 180. In addition, when there is a video call request from the 324 MMC 160 which will be described later, the HLR 124 checks the address information of the MSC 122 in charge of the area where the receiving terminal 180 is located, and returns to the 324 MMC 160. to provide. That is, the response signal transmitted by the HLR 124 to the 324 MMC 160 in response to the location information request signal includes the address information of the MSC 122.

The short message service center (SMSC) 140 is connected to the MSC 122 and has a function of delivering a short message to mobile communication subscribers. SMSC 140 allows the user to send and receive numbers and letters in both directions between the various text delivery systems (PC communication system, Internet server system, mobile communication terminal, etc.) and subscribers using the WCDMA network 120, the present invention When the video message to be transmitted to the receiving terminal 180 is stored in the 324 MMC (160), it performs a role of transmitting a short message informing the storage of the video message to the receiving terminal 180.

The customer data distribution server (CDS: 150) is provided with subscriber information from the customer management system 152 and transferred to the HLR 124 to control the subscriber information to be changed. It is a system.

The Customer Oriented Information System (COIS) 152 stores information about a subscriber, such as an international mobile station identity (IMSI), a service management number, and a type of service.

The IMSI is a number including a country code (MCC), a mobile network code (MNC), and a mobile identification number (MIN). In other words, IMSI is necessary to use overseas communication service, and MIN is sufficient when using domestic communication service.

The service management number is an identification value assigned to each subscriber to manage the subscriber and is a customer management number different from the IMSI value or the IMEI value of the originating terminal 110 or the receiving terminal 180. That is, even if the subscriber changes the terminal or the telephone number, an identification value for identifying each subscriber's subscription status and billing status, etc. is required by the mobile service provider, which is a service management number.

324 The MMC 160 is a system in charge of storing and providing a video message according to the present invention. The subscriber processing server (SPS: `` SPS '') 162 and the SS7 signal box 164 , 324 MPS 166, switch 168, storage server 170, media codec conversion server (MTS: Multimedia Transcoding Server, hereinafter referred to as 'MTS') 172 and email transfer server (MTG: Multimedia Transfer Gateway, (Hereinafter referred to as 'MTG') (174).

The SPS 162 is a server that stores subscriber information of a user who has subscribed to a video call service and a video message storage service. The SPS 162 is interworked with the CDS 150. The SPS 162 performs a function of providing subscriber information such that subscriber information is stored together with the video message in a storage space allocated to each user when the video message is stored in the storage server 170.

The SS7 signal box 164 is a device that receives signals and data input from the GGSN 150 and transmits them to the storage server 170. SS7 stands for Signaling System Number 7 and is a protocol used for exchanging information between network components, and provides fast call setup and transaction capability.

The 324 MPS (3G 324M Media Processing Server) 166 is a part that processes the video message transmitted through the MSC 122 of the 3G 324M system. The 324 MPS 166 includes a plurality of MPS processors therein for processing a large number of video messages simultaneously.

The storage server 170 is a part in which a video message transmitted from the calling terminal 110 is stored. The video message stored in the storage server 170 is provided at the request of the receiving terminal 180, and the provided video message is deleted immediately or after a predetermined time elapses. In addition, the video message that is not provided to the receiving terminal 180 by a predetermined valid time may be set to be automatically deleted.

At this time, the video message stored in the storage server 170 may be transmitted to the mail account of the receiver through the email. At this time, the 324 MMC 180 uses the MTG 182 and MTS 184 to provide a video message in the form of an email.

The MTS 172 is a server that converts the stored video message into a media form that can be played on a computer and generates a reconstructed video message. That is, for example, a video file that can be easily played on a computer such as a WMV by converting a video message composed of an audio codec file such as G.723.1 AMR and H.263, MPEG-4, and H.264 video files, respectively. It has the function to create.

The MTG 174 is connected to the Internet to deliver the reconstructed video message reconstructed by the MTS 172 to the recipient's account in the form of an email. To this end, the MTG 174 is connected through the switch 168 and the SPS 162 containing the recipient's email account information, and receives the recipient's email account information from the SPS 162.

In the video mailbox provided through the system, the video call request is transmitted from the calling terminal 110 to the receiving terminal 180. However, if there is no response to the video call request from the calling terminal 110, the video mailbox is sent to the calling terminal 110. Is provided. A situation in which the receiving terminal 180 does not respond to the video call request is typically a case in which the receiving terminal 180 is set to switch to the video mailbox unconditionally for the video call request. If you do not receive or if the receiving terminal 180 is off.

2 is a flowchart illustrating a video mailbox service method when a receiving terminal sets an unconditional switch according to an exemplary embodiment of the present invention.

First, the calling terminal 110 transmits a video call request signal to the switching center 122 which is in charge of the area where the calling terminal 110 is located for the video call, and the switching station 122 makes a video call to the connected HLR 124. The requesting video call request message Send_Routing_Info is transmitted (S202).

Upon receiving the video call request message, the HLR 124 checks the terminal number of the receiving terminal 180 enclosed in the video call request message, that is, IMSI or MIN. If the HLR 124 checks the terminal number of the receiving terminal 180, checks whether the receiving terminal 180 is subscribed to the video call and the switching state, and confirms that the switching state is set to switching unconditionally (S204). A video mailbox switching message (Send_Routing_Info_Return) indicating the switchover to the mailbox is transmitted to the switching center 122 and the calling terminal 110. In this case, the video mailbox switching message includes a video mailbox forwarding number (Forwarded_to_Number), a forwarding reason, and a notification to calling party. Here, the video mailbox incoming telephone number is a connection number for inducing the calling terminal 110 to be connected to the 324 MMC 160 to leave a video message (S206).

The originating terminal 110 receiving the video mailbox switching message proceeds with the H.245 negotiation for setting the H.245 control protocol to the 324 MMC 160 to store the video message. This process is called H.245 Negotiation. At this time, messages such as Master_Slave_determination, Terminal_Capability_Set, Multiplex_Entry_Send, and Open_Logical_Channel are used for H.245 negotiation (S208).

When the H.245 negotiation between the calling terminal 110 and the 324 MMC 160 is completed (S210), the video mailbox conversion message according to the completion of the H.245 negotiation is transmitted to the calling terminal 110. At this time, the warning text may also be transmitted to the calling terminal 110 at the same time. For example, we'll connect to the video mailbox at your request. After you are connected, you will be charged for the call, so if you do not want it, you can use video mailbox conversion and warning phrases such as' S212.

If a certain time elapses after the transmission of the video mailbox conversion message or if a DTMF (Dual Tone Multi Frequency) is generated during the video mailbox conversion message, the DTMF is transmitted to the 324 MMC 160 (S214), and the 324 MMC (160). ) Informs the calling terminal 110 that the call is connected to the 324 MMC 160 using the H.245 User_Input_Indication message (S216). The originating terminal 110, which has been set to the general video call mode, receives the H.245 User_Input_Indication message and switches to the multimedia message transmission mode. Here, DTMF means the sound produced | generated when the key button of the calling terminal 110 is pressed (S218).

When the calling terminal 110 switched to the multimedia message transmission mode using the H.245 User_Input_Indication message is connected to the 324 MMC 160, the 324 MMC 160 controls the outgoing channel to the calling terminal 110. do. This is because the video mailbox service only needs to receive the multimedia, that is, the video message transmitted from the calling terminal 110, without having to transmit and receive the multimedia in both directions, so as to prevent waste of radio resources.

When the calling terminal 110 and the 324 MMC 160 are connected, the calling terminal 110 transmits the video message multiplexed with the voice and the screen to the 324 MMC (160) (S220), 324 MMC (160) Stores the transmitted video message in the storage server 170 (S222).

When the transmission of the video message is completed, the calling terminal 110 transmits a Release message indicating the end of the video message to the 324 MMC 160, and the H.245 session created between the calling terminal and the 324 MMC 160 ends. The call is terminated (S224).

Through this process, a video message storage service of a calling terminal that transmits a video call request to a receiving terminal to which an unconditional switch is set is provided.

3 is a flowchart illustrating a video mailbox service method when a receiving terminal is busy or off according to an exemplary embodiment of the present invention.

When the calling terminal 110 transmits a video call request message to an exchange that is in charge of the area where the calling terminal 110 is located for a video call (hereinafter, referred to as a call originating exchange), the HLR 124 requests a video call. Check the terminal number of the receiving terminal 180, i.e., IMSI or MIN, enclosed in the message to determine the location of the switching center (hereinafter referred to as a "receiving exchange") in charge of the area where the receiving terminal 180 is located. The request message is transmitted (S302).

The receiving exchange checks the state of the receiving terminal 180, that is, any of various states such as a call waiting state, a call state, a power off state, and the like. The state of the receiving terminal 180 may be confirmed through a channel formed between the receiving terminal 180 and the RTS 132. That is, if a paging channel for transmitting a periodic signal is not formed between the RTS 132 that manages the area where the receiving terminal 180 is located and the receiving terminal 180, the receiving terminal 180 You can see that the power is off. In addition, although a paging channel is formed between the receiving terminal 180 and the RTS 132, if a traffic channel for data exchange is not formed, it can be confirmed that the call is in a waiting state, and the paging channel and the traffic channel are If all are formed it can be confirmed that the call is in operation (S304).

As a result of confirming the state of the receiving terminal 180 through the above method, when the call is in progress, the message indicating the switching reason and the video mailbox switching message indicating that the receiving terminal 180 is busy and the video call cannot be connected. If the receiving terminal 180 is turned off, and the switching reason explanation message and the video mailbox switching message indicating that the receiving terminal 180 is turned off (S306).

Since the following steps S308 to S324 are the same as the above-mentioned steps S208 to S224, detailed description thereof will be omitted.

4 is a flowchart illustrating a video mailbox service method when a receiving terminal does not respond according to an exemplary embodiment of the present invention.

When the calling terminal 110 transmits the video call request message to the calling switching center in charge of the area where the calling terminal 110 is located for the video call, the HLR 124 receives the receiving terminal 180 enclosed in the video call request message. Check the terminal number, i.e., IMSI or MIN, to determine the location of the receiving switching center in charge of the area where the receiving terminal 180 is located, and transmit a video call request message.

The receiving exchange checks the call waiting state of the receiving terminal 180 by using a paging channel and a traffic channel formed between the receiving terminal 180 and the RTS 132. Then, the video call request signal transmitted from the calling terminal 110 is transmitted to the receiving terminal 180 in a call waiting state (S402).

The receiving switching center waits for a response to the video call request signal of the receiving terminal 180 for a preset time (S404), and if there is no response of the receiving terminal 180 for a predetermined time, the calling switching center and the calling terminal 110 In step S406, a message indicating that there is no response from the receiving terminal 180 and a video mailbox switching message are transmitted.

Since the following steps S408 to S424 are the same as the above-mentioned steps S208 to S224, detailed descriptions thereof will be omitted.

When the video message is stored in the 324 MMC 160 through the process of FIG. 2 to FIG. 4, a short message indicating that the video message has been stored is transmitted to the receiving terminal 180 through the SMSC 140. The receiving terminal 180 receiving the short message accesses the 324 MMC 160 and checks the stored video message.

5 is a flowchart illustrating a method of confirming a video message stored in a video mailbox by a receiving terminal according to an exemplary embodiment of the present invention.

The receiving terminal 180 transmits a video mailbox access request signal to access the 324 MMC 160. The video mailbox connection request signal is received by the receiving terminal 180, or inputs a mailbox access number using a key input such as '*', '#', or a special key button mounted on the receiving terminal 180. It can be delivered through the method of inputting. For example, when the receiver inputs a mailbox access number such as '* 89', an access request signal to the video mailbox of the corresponding user is generated (S502).

Upon receiving the video mailbox access request signal, the 324 MMC 160 proceeds with the H.245 negotiation for setting the H.245 control protocol to transmit the video message to the receiving terminal 180 (S504).

When the H.245 negotiation between the receiving terminal 180 and the 324 MMC 160 is completed, the receiving terminal 180 switches to the multimedia message receiving mode in order to receive the video message. In this case, it is also possible to provide a transition message or a video to the multimedia message reception mode in the 324 MMC (160) (S506).

The receiving terminal 180 that has switched to the multimedia message receiving mode accesses the storage server 170 of the 324 MMC 160 (S508), and requests the transmission of the stored video message (S510).

In response to the video message transmission request of the receiving terminal 180, the 324 MMC 160 transmits the video message to the receiving terminal 180. At this time, the video message is transmitted by multiplexing the audio data and the video data according to the H.223 multiplexing standard through a 64 Kbps circuit channel.

However, it may occur when the receiver wants to store the video message in the receiving terminal 180, and therefore, it is desirable to simultaneously have a menu that the receiver can select so that the receiver can receive the video message through a download method. In addition, according to the present invention, it is also possible to provide a video message using a streaming method using a packet data network without transmitting a video message using a circuit data network (S512).

As such, when the provision of the video message to the receiver terminal 180 is completed, the 324 MMC 160 transmits a message indicating the end of the transmission of the video message to the receiver terminal 180, and between the receiver terminal 180 and the 324 MMC 160. The generated H.245 session is terminated, the call is terminated (S514).

As described above, the calling terminal 110 stores the video message through the process of FIGS. 2 to 4, and the video mailbox providing service for confirming the stored video message in the receiving terminal 180 can be implemented through the process of FIG. 5. .

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

As described above, according to the present invention, when the receiver does not receive the video call service, if the caller leaves a video message in the video mailbox, the receiver accesses the video mailbox and provides the video mailbox to check the stored video message. If there is no response, the hassle of sending a separate video message and transmitting it through the MMS service disappears. In addition, by immediately notifying the recipient of the video message via e-mail as well as the short message, the receiver can check the video message via the Internet as well as the mobile communication terminal.

In addition, the service provider may improve the service satisfaction of the customer by providing a video mailbox to subscribers who have delivered the message using only the conventional voice mailbox, thereby generating revenue.

Claims (31)

In the 3G 324M video call service, if the receiving terminal does not receive a video call request, the user of the calling terminal stores a video message and provides the video mailbox to the receiving terminal, A 324 multimedia message center (MMC) for storing the video message transmitted from the calling terminal and providing the stored video message according to a video message providing request from the receiving terminal; A Short Message Service Center (SMSC) for generating and sending a text message notifying storage of the video message to the receiving terminal when the video message is stored in the 324 MMC; And Provide a voice call and the 3G 324M video call service between the calling terminal and the receiving terminal, transferring the video message from the calling terminal to the 324 MMC, and transmitting the video message from the 324 MMC to the receiving terminal. Provided WCDMA Network Video mailbox providing system comprising a. According to claim 1, The video mailbox providing system, A Customer Oriented Information System (COIS) for storing subscriber information of the 3G 324M video call service; And CDS (Customer Data Distribution Server) for controlling the change of the subscriber information Video mailbox providing system, characterized in that it further comprises. The method of claim 1, wherein the 324 MMC, A subscriber processing server (SPS) for storing subscriber information of the 3G 324M video call service and providing the subscriber information when the video message is stored; A Signaling System Number 7 (SS7) signal box for receiving signals and data input through the WCDMA network; A 324 MPS (3G 324M Media Processing Server) including a plurality of MPS processors to process the video message input to the 324 MMC; And A storage server storing the video message transmitted from the calling terminal Image mailbox providing system comprising a. The method of claim 3, wherein the 324 MMC, A multimedia transcoding server (MTS) for converting a media form of the video message to generate a reconstructed video message; And Multimedia Transfer Gateway (MTG) for transmitting the reconstructed video message converted by the MTS to the e-mail account of the user of the receiving terminal Video mailbox providing system, characterized in that it further comprises. The method of claim 3, wherein the storage server, And after the video message is delivered to the receiving terminal, the video message is deleted immediately or after a predetermined time elapses. The method of claim 3, wherein the storage server, And the video message which is not provided to the receiving terminal until a designated valid time is automatically deleted. The method of claim 1, wherein the WCDMA network, A home location register (HLR) for performing registration recognition, registration deletion, and location checking of the calling terminal and the receiving terminal; A mobile switching center (MSC) for providing a voice call service between the calling terminal and the called terminal; And A radio access network (RAN) for receiving a video call request signal from the calling terminal and transmitting the received video call request signal to the MSC and receiving the video call request signal from the MSC and transmitting the received video call request signal to the receiving terminal. Image mailbox providing system comprising a. The method of claim 7, wherein the HLR, And upon receipt of the video call request from the 324 MMC, check the address information of the switching center in charge of the area where the receiving terminal is located and provide the same to the 324 MMC. The method of claim 1, wherein the reception terminal does not receive the video call request. When the receiving terminal is set to switch to the video mailbox service unconditionally when the video call request is input, when the receiving terminal is busy, when the receiving terminal is off or the user of the receiving terminal does not answer the call At least one of the video mailbox providing system, characterized in that. The method of claim 1, wherein the 3G 324M video call service, A video mailbox providing system using an H.263 video codec, a G.723 voice codec, an H.223 multiplexing protocol, and an H.245 control protocol. When a video call request is input to a receiving terminal in a 3G 324M video call service using a WCDMA network, the calling terminal is set to 'unconditionally switch' to the 324 multimedia message center (MMC) for storing a video message. A video message storage method in a video mailbox service, wherein a user of the video message stores the video message. (a) inputting the video call request from the calling terminal; (b) checking an 'unconditional switch' state of the receiving terminal in a home location register (HLR) of the WCDMA network; (c) transmitting a video mailbox switch message informing of the video mailbox switch to the calling terminal; (d) proceeding with H.245 negotiation between the originating terminal and the 324 MMC to create an H.245 session; (e) receiving the video message from the calling terminal when the H.245 session is created; And (f) storing the video message and ending the H.245 session and call Video message storage method in a video mailbox service comprising a. The method of claim 11, wherein step (b) comprises: After confirming the terminal number of the International Mobile Station Identity (IMSI) or Mobile Identification Number (MIN) of the receiving terminal enclosed in the video call request, and confirms the 'unconditional switch' state of the receiving terminal through the HLR Video message storage method in the video mailbox service. The method of claim 11, wherein step (c) comprises: A method for storing a video message in a video mailbox service, wherein the video mailbox forwarding message includes a forwarding_to_number, a forwarding reason, and a notification to calling party. The method of claim 11, wherein step (e) After the H.245 session is created, the video message storage method and the video message storage method, characterized in that for transmitting the video mailbox conversion message to the calling terminal. The method of claim 14, wherein step (e) When a predetermined time elapses after the video mailbox conversion message is transmitted, or when DTMF (Dual Tone Multi Frequency) is input from the caller terminal, the caller terminal is connected to the 324 MMC. Way. The method of claim 15, wherein step (e) When the calling terminal is connected to the 324 MMC, the calling terminal is switched from the normal video call mode to the multimedia message transmission mode, and the 324 MMC controls the use of an outgoing channel. How to save video messages in. The method of claim 11, wherein step (f) comprises: And a release message notifying the end of transmission of the video message from the originating terminal, terminating the H.245 session. The method of claim 11, wherein the video message storing method comprises: (g) when the storage of the video message is completed, notifying the receiving terminal of the video message by using a short message or an e-mail. The video message storage method in the video mailbox service, characterized in that it further comprises. If a video call request is input from a 3G 324M video call service using a WCDMA network to a receiving terminal, but the receiving terminal is busy or off, and the video call connection is not established, the user of the calling terminal is connected to the 324 MMC (Multimedia Message Center). A video message storage method in a video mailbox service for storing a video message) (a) inputting the video call request from the calling terminal; (b) checking a state of being in a call or turned off by the receiving terminal; (c) transmitting a video mailbox switch message informing of the video mailbox switch to the calling terminal; (d) proceeding with H.245 negotiation between the originating terminal and the 324 MMC to create an H.245 session; (e) receiving the video message from the calling terminal when the H.245 session is created; And (f) storing the video message and ending the H.245 session and call Video message storage method in a video mailbox service comprising a. 20. The method of claim 19, wherein step (b) comprises: (b11) checking a terminal number of an international mobile station identity (IMSI) or a mobile identification number (MIN) of the receiving terminal enclosed with the video call request; (b12) identifying, at the HLR, a receiving switching center in charge of the area where the receiving terminal is located by using the terminal number; And (b13) determining the state of the receiving terminal through a channel formed between the receiving terminal and a radio transceiver subsystem (RTS) of the WCDMA network; Video message storage method in a video mailbox service comprising a. The method of claim 20, wherein step (b13) comprises: The state of the receiving terminal is checked using the paging channel and the traffic channel. If the paging channel is not formed between the receiving terminal and the base station transmitter, the receiving terminal is turned off. If the paging channel is formed but the traffic channel is not formed, the call waiting state is determined. If both the paging channel and the traffic channel are formed, the call is determined to be a busy state. How to save a message. 20. The method of claim 19, wherein step (c) comprises: And a switching reason explanation message indicating that the video call cannot be connected because the receiving terminal is turned off or the receiving terminal is in a call together with the video mailbox switching message. . The method of claim 19, wherein the video message storage method, (g) when the storage of the video message is completed, notifying the receiving terminal of the video message by using a short message or an e-mail. The video message storage method in the video mailbox service, characterized in that it further comprises. In the 3G 324M video call service using a WCDMA network, when a video call request is input to a receiving terminal but the receiving terminal does not respond, and a video call connection is not established, the user of the calling terminal may send a video to the 324 multimedia message center (MMC). A video message storage method in a video mailbox service that stores a message. (a) inputting the video call request from the calling terminal; (b) transmitting the video call request signal to the receiving terminal and waiting for a response to the video call request signal; (c) if there is no response from the receiving terminal for a predetermined time, transmitting a video mailbox switching message informing the calling terminal of the switching of the video mailbox; (d) proceeding with H.245 negotiation between the originating terminal and the 324 MMC to create an H.245 session; (e) receiving the video message from the calling terminal when the H.245 session is created; And (f) storing the video message and ending the H.245 session and call Video message storage method in a video mailbox service comprising a. The method of claim 24, wherein step (b) (b21) checking a terminal number of an international mobile station identity (IMSI) or a mobile identification number (MIN) of the receiving terminal enclosed with the video call request; (b22) identifying, at the HLR, a receiving switching center in charge of the area where the receiving terminal is located by using the terminal number; (b23) confirming that the receiving terminal is in a call waiting state through a paging channel and a traffic channel formed between the receiving terminal and a Radio Transceiver Subsystem (RTS) of the WCDMA network; And (b24) transmitting the video call request signal to the receiving terminal and waiting for a response to the video call request signal for a predetermined time; Video message storage method in a video mailbox service comprising a. The method of claim 24, wherein step (c) Video message storage in the video mailbox service, characterized in that the receiving terminal is turned off or there is no response from the receiving terminal and the switching reason explanation message indicating that the video call cannot be connected with the video mailbox switching message. Way. The method of claim 24, wherein the video message storage method, (g) when the storage of the video message is completed, notifying the receiving terminal of the video message by using a short message or an e-mail. The video message storage method in the video mailbox service, characterized in that it further comprises. In a 3G 324M video call service using a WCDMA network, a receiving terminal accesses a 324 multimedia message center (MMC) and checks stored video messages. (a) receiving a video mailbox access request signal from the receiving terminal; (b) proceeding with H.245 negotiation between the receiving terminal and the 324 MMC to generate an H.245 session; (c) receiving the video message stored in the 324 MMC via the session; And (d) terminating the H.245 session and call when transmission of the video message is complete; Video message checking method in a video mailbox service comprising a. The method of claim 28, wherein step (a) comprises: The video mailbox connection request signal through input of a mailbox access number using a telephone number input of the receiving terminal, a key input including any one of '*', or '#' or a special key button mounted on the receiving terminal. Video message checking method in a video mailbox service, characterized in that for inputting. The method of claim 28, wherein step (b) comprises: When the H.245 session is created, the receiving terminal switches to the multimedia message receiving mode. The method of claim 28, wherein step (d) comprises: And receiving a message informing that the transmission of the video message is terminated by the M324 in the 324 MMC, ending the H.245 session.

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