KR20030048502A - The system and method of multimedia data transmission considering resource of mobile terminal - Google Patents

Abstract

PURPOSE: A method for transmitting and receiving multimedia data by considering resources of a wireless terminal is provided to transmit state information of a reception terminal to a server and then transmit only data capable of processing to the reception terminal, thereby receiving much more multimedia data by the reception terminal. CONSTITUTION: When a wireless terminal, as an origination terminal, writes multimedia data at an agent and transmit it to an MMS(Multimedia Messaging Service) server(400), the MMS server(400) transmits inform message that there is a multimedia message to a reception terminal(200)(S101). The reception terminal(200) transmits a response message according to the inform message(S102) together with state information thereof. Thereafter, the MMS server(400) transmits state information included to the response message to a CPIS(Capability and Preference Information Server)(500) in order to update the state information of the corresponding terminal(S103). The reception terminal(200) transmits a transmission request message to the MMS server(400)(S104) together with state information thereof. Thereafter, the MMS server(400) updates the station information of the CPIS(500)(S105). A CPI analyzing unit analyzes state information of the reception terminal(200), determines priority of transmission according to weight and processes multimedia data by applying CODEC capable of reproducing by the reception terminal(200)(S106). Thereafter, the multimedia data are transmitted to the reception terminal according to priority(S107). When the reception is completed, the reception terminal(200) transmits the changed terminal's state information to the MMS server(400)(S108). The MMS server(400) transmits the received state information to the CPIS(500), so that the state information is updated(S109).

Description

The system and method of multimedia data transmission considering resource of mobile terminal

The present invention relates to a method for transmitting multimedia data according to a state of a receiving terminal in a multimedia messaging service (MMS). In particular, a wireless terminal resource for identifying a state of a receiving terminal and weighting the multimedia data can be transmitted and received. The present invention relates to a multimedia data transmission and reception system and method considering a state.

MMS is a service defined in the international standard recommendation 3GPP (3rd Generation Partnership Project) Technical Specification (TS) 22.140 and 23.140, and can transmit and receive various multimedia data such as voice, image, audio, and video data between wireless terminals. It is a service to ensure that.

The MMS is composed of the following systems.

1 is a block diagram showing a configuration for a conventional multimedia data service.

Referring to FIG. 1, a terminal 10, 20 for creating and transmitting multimedia data for MMS, and a server 40 for transmitting and receiving messages between the terminals 10, 20 are configured. ) Is connected through a WAP (wireless application protocol) gateway 30 to access the server 40.

In particular, the terminals 10 and 20 may include a multimedia message agent 11 and 21 for creating a multimedia message and managing the received multimedia message, a codec 12 and 22 capable of encoding / decoding multimedia data, and It comprises a communication unit 13, 23 for transmitting and receiving multimedia data with the server 40.

In addition, the server 40 is a transmission and reception unit 41 for receiving and re-transmitting the message written from the terminal (10, 20), the linkage unit 42 for interworking with an e-mail or short message transmission device and the like, multimedia data It is configured to include a data processor 43 that can be processed into an appropriate form.

Referring to the operation of the MMS system configured as described above are as follows.

2 is a flowchart illustrating an operation procedure of a method of a conventional multimedia data service.

Referring to FIG. 2, when the calling party wireless terminal 10 generates multimedia data in the multimedia message agent 11 and transmits the multimedia data to the transceiver 41 of the server 40 through the WAP gateway 30 (S11). In operation S12, the server 40 transmits a notification message indicating that there is multimedia data to be transmitted to the receiving side wireless terminal 20.

In this case, the wireless terminals 10 and 20 refer to a mobile communication terminal capable of providing a multimedia service or a messaging system equipment capable of wireless communication, and the caller connects to a message system or writes a message using a terminal to a server. When you send, the server will notify the recipient that there is a message arriving.

The wireless terminal 20 on the receiving side receiving the notification message that there is data is connected to the server by accessing the WAP gateway 30 to receive the data (S13). At this time, the server 20 accesses the server using the message number included in the notification message that there is data received in step S12 and the address information of the server where the data exists, and in this process, the terminal 20 includes the subscriber number and the WAP version information. It may also be provided to the server (40).

When the wireless terminal 20 is connected to the server 40 as described above, the wireless terminal 20 receives its own message using its own message number and address in the notification message of step S12 (S14). .

In addition, when the reception of the message is terminated, the server 40 is notified and the connection is released (S15).

However, the conventional MMS system has a problem that the server can not accurately determine the state of the receiving terminal.

In other words, the state of the receiving terminal that can be known from the server side is only the subscriber number and WAP version information transmitted when attempting to connect through the WAP gateway, the available memory size, the size of the screen display, CPU information, Information for using multimedia data such as a multimedia codec that is supported is unknown on the server side.

This problem is that even if the receiving terminal takes all of the messages from the server, if the terminal lacks memory or the terminal has a screen different from the size of the original video, the received data cannot be displayed to the play or the subscriber. The problem arises.

In order to solve the above problems, the present invention transmits the status information of the receiving terminal to the server with the detailed information of the receiving terminal, the information that can use the multimedia data, such as the memory size, the screen display size of the receiving terminal on the server side To transmit only the data that can be processed by the receiving terminal in advance, and to weight the various multimedia data such as text, voice, video, and audio, respectively, to transmit as many messages as possible to the receiving terminal with limited memory. And it is an object of the present invention to provide a multimedia data transmission and reception system and method in consideration of the radio terminal resource state to configure the function to enable the conversion so that the receiving terminal can receive more multimedia data.

1 is a block diagram showing a configuration for a conventional multimedia data service.

2 is a flowchart showing an operation procedure of a method of a conventional multimedia data service.

3 is a block diagram showing the configuration of a multimedia data transmission and reception system in consideration of a wireless terminal resource state according to an embodiment of the present invention.

4 is a flowchart illustrating an operation procedure of a method of transmitting and receiving multimedia data in consideration of a wireless terminal resource state according to an exemplary embodiment of the present invention.

5 is a flowchart illustrating a process of changing subscriber information by accessing CPIS in a wireless terminal through a WAP gate;

6 is a flowchart illustrating a process of changing subscriber information through an Internet connection using a web terminal.

Multimedia data transmission and reception system in consideration of the radio terminal resource state according to the present invention,

A multimedia data agent unit for creating a multimedia message and managing the received multimedia message, a codec for encoding or decoding multimedia data, a subscriber information unit capable of totally transmitting and receiving information of the current terminal, and the multimedia data A wireless terminal configured to include a communication unit for transmitting and receiving;

Transmitting and receiving unit for transmitting the multimedia data received from the wireless terminal to the receiving wireless terminal, Subscriber information receiving unit for receiving the status information transmitted from the subscriber information unit of the receiving terminal, Transmitting the received status information of the receiving terminal A server comprising a subscriber information transmitter for processing and a data processor for processing multimedia data according to the state information of the called terminal;

And a subscriber information server that stores and manages state information of the called terminal transmitted from the subscriber information transmitter of the server.

Preferably, the server further comprises an interlocking unit for interworking with an external messaging system and a data processing unit for processing multimedia data.

Preferably, the data processing unit

Receives the type of codec supported by the called terminal, the size of the display, and the size of the data from the subscriber information server, analyzes them in the subscriber information analysis unit, and assigns weights according to the multimedia types to suit the state of the called terminal. It is characterized in that the transmission to the destination terminal by processing.

In addition, the multimedia data transmission and reception method considering the radio terminal resource state according to the present invention,

Receiving multimedia data from a wireless terminal or a messaging system at a server;

Transmitting a data notification message to a receiving terminal of the received multimedia data, and receiving status information together with a response message according to the notification message from the receiving terminal;

Updating the receiving terminal state information of the subscriber information server using the received state information;

Receiving, at the server, a data reception request message from a receiving terminal, processing and converting multimedia data according to priority using the subscriber information of the subscriber information server and transmitting the same to the receiving terminal;

And receiving the processed and converted multimedia data from the server at the receiving terminal and transmitting a completion message to update the receiving terminal status information of the subscriber information server at the server.

Preferably, the priority of the multimedia data is weighted according to the type and size of the data, so that the data having low weight is sequentially transmitted to the receiving terminal.

Preferably, the terminal accesses the subscriber information server and arbitrarily performs a service setting including a message reception address, a message retention period, a receivable spam message, a recipient's address, and a rejection message type information stored in the subscriber information server. It can be changed.

Preferably, the terminal is connected to the subscriber information server through a web server or a WAP gateway.

The multimedia data transmission and reception system and method considering the radio terminal resource state according to the present invention configured as described above will be described with reference to the accompanying drawings.

3 is a block diagram illustrating a configuration of a multimedia data transmission and reception system in consideration of a wireless terminal resource state according to an exemplary embodiment of the present invention.

Referring to FIG. 3, a system for transmitting and receiving multimedia data includes wireless terminals 100 and 200 capable of creating and playing multimedia data, and a WAP gateway 300 for wireless communication with the wireless terminals 100 and 200. , A MMS server 400 for multimedia data service, and a capability and preference information server (CPIS) for storing and managing state information of the wireless terminals 100 and 200.

In this case, the wireless terminals 100 and 200 may include agents 110 and 210 for creating and managing multimedia data, codecs 120 and 220 for playing multimedia data, and communication unit 130 for transmitting and receiving multimedia data. And 230, and CPI processing units 140 and 240 for grasping and transmitting state information of the wireless terminal.

In addition, the MMS server 400 is a transmission and reception unit 410 for receiving and re-transmitting the message created from the terminal (100, 200), the linkage unit 420 for interworking with an e-mail or short message transmission device, and multimedia data A data processor 430 capable of processing the data into an appropriate form, a CPI transmitter 440 for receiving and transmitting the state information of the wireless terminal to the CPIS 500, and a CPI analyzer for analyzing the state information of the wireless terminal. 450 and a CPI receiver 460 for receiving status information of the wireless terminal from the CPIS 500 as necessary, and the CPIS 500 is a database for storing subscriber information of all wireless terminals. Consists of

In particular, the subscriber information (or status information) of the wireless terminal may include the size of available memory of the terminal, the size of the screen capable of displaying multimedia data, the type of codec capable of playing multimedia data, the information of the CPU of the terminal, and the like. Version information of the agents 110 and 210 is included.

4 is a flowchart illustrating an operation procedure of a method of transmitting and receiving multimedia data in consideration of a wireless terminal resource state according to an exemplary embodiment of the present invention.

Referring to FIG. 4, when the wireless terminal 100 is a calling terminal, the multimedia data is created by the agent 110 and transmitted to the MMS server 400 through the communication unit 130, the receiving terminal (MMS server 400) In step S101, a notification message indicating that multimedia data is transmitted is transmitted.

The receiving terminal 200 transmits a response message according to the notification message (S102), and transmits the status information of the terminal.

That is, the CPI processing unit 240 of the receiving terminal 200 determines the current memory capacity of the terminal, the size of the displayable screen, the type of the codec, the CPU performance, and the like, and transmits the response message to the MMS server 400 together with the response message. .

In this case, the receiving terminal 200 may transmit a message to the MMS server 400 by accessing the WAP gateway 300 according to an embodiment of the present invention, and directly through the MMS server 400 using HTTP without passing through the WAP gateway. You can also send a message with).

When the response message is received from the receiving terminal 200 as described above, the MMS server 400 transmits the status information included in the response message from the CPI transmitter 440 to the CPIS 500 to transmit the status information of the corresponding terminal. To update (S103).

In addition, the receiving terminal 200 transmits a transmission request message to the MMS server 400 in order to receive multimedia data (S104), and also transmits state information.

According to the transmission request message, the MMS server 400 updates the state information of the corresponding terminal of the CPIS 500 (S105), and analyzes the state information of the receiving terminal 200 in the CPI analyzer 450 and weights it. The transmission priority is determined in accordance with the present invention, and the receiving terminal 200 processes multimedia data by applying a playable codec (S106).

The weight of the multimedia data depends on a value arbitrarily set according to the type and size of the data. For example, a weight matrix shown in Table 1 may be defined.

Size type Min max #One #2 # 3 #4 # 5 text One 3 6 10 15 image 2 5 9 14 19 audio 4 8 13 18 22 video 7 12 17 21 24 Etc 11 16 20 23 25

The priority of data transmission is determined by applying the weight matrix as shown in Table 1 above.

For example, there are two types of multimedia messages to be sent, text messages having sizes of 10kb and 12kb, image messages having sizes of 12kb and 110kb, and audio data having sizes of 100kb. When the priority is determined by assigning the weight as shown in Table 1, the multimedia data is transmitted in the order of text message 10 kb-image message 12 kb-text message 12 kb-audio message 100 kb-image message 110 kb, and the codec supported by the receiving terminal. The audio message can be converted to fit.

In addition, if there is a video message, the video format is processed to match the screen size of the receiving terminal 200 to be transmitted.

When the message is processed and converted to match the state information of the receiving terminal 200 as described above, the multimedia data is transmitted in a response message according to the transmission request message of step S104 according to priority (S107).

The receiving terminal 200 may receive data as much as the remaining memory capacity, and if the amount of data received is larger than the memory, the remaining data will be lost.

Therefore, the MMS server 400 transmits the data with priority in order to transmit as many types of data as possible to the receiving terminal 200.

The receiving terminal 200 that has received the data transmits the changed state information of the terminal together with the reception completion message to the MMS server 400 (S108), and the MMS server 400 transmits the received state information to the CPIS 500. And update (S109).

As described above, the MMS server transmits according to the priority of the data so that the receiving terminal can receive various types of data as much as possible, and also processes and converts the data according to the display screen size and the codec type of the receiving terminal. There is an effect that it is possible to play the received data normally to provide to the subscriber.

In addition, the wireless terminals 100 and 200 may arbitrarily access some of the information by accessing the CPIS 500. After accessing the CPIS 500 through a function such as wireless Internet access, the address of the message receiver and the message retention period You can specify the spam messages you want to receive, and you can choose to receive only the services you want by selecting the recipient's address or message type.

Such a configuration change provides a function of accessing and processing the CPIS in the same manner as a web connection and a wireless communication method of a general terminal.

With reference to the accompanying drawings for the subscriber information setting change as described above in more detail as follows.

FIG. 5 is a flowchart illustrating a process of changing subscriber information by accessing CPIS from a wireless terminal through a WAP gate, and FIG. 6 is a flowchart illustrating a process of changing subscriber information through an internet connection using a web terminal.

Referring to FIG. 5, first of all, the change of subscriber information through the WAP gateway will be described. First, the terminal 100 accesses the CPIS server 500 through the WAP gateway 300 to change the subscriber information. The WAP gateway 300 transmits a connection request message (S201).

The WAP gateway 300 transmits a subscriber authentication request message to the CPIS server 500 by using the authentication information included in the access request message from the terminal 100 (S202) and receives an authentication confirmation message (S203). The subscriber authentication confirmation message is transmitted to the terminal (S204) to inform that the CPIS server 500 is connected.

The terminal 100 inputs subscriber information to be changed and transmits it to the WAP gateway 300 (S205), and the WAP gateway 300 transmits the received subscriber information to the CPIS server 500 and requests a change ( S206).

After changing the subscriber information according to the received subscriber information, the CPIS server 500 notifies the WAP gateway 300 that the change of subscriber information is completed (S207), and the WAP gateway 300 sends a completion message to the terminal ( In step S208, when the subscriber information is properly changed, the terminal 100 transmits a connection release request message to the WAP gateway 300 to release the connection (S209).

As described above, in addition to the method of changing the subscriber information after accessing the CPIS server through the WAP gateway, in order to change the subscriber information by directly accessing the Internet using HTTP as shown in FIG. When the terminal 100 accesses the homepage for access to the CPIS server from the initial menu provided on the homepage of the web server (S301), the web server returns to the CPIS server 500 based on the authentication information received from the terminal 100. After the subscriber authentication request message is transmitted (S302), an authentication confirmation message is received from the CPIS server 500 (S303).

The web server receiving the authentication confirmation message notifies the terminal 100 of the subscriber authentication confirmation (S304), and the terminal 100 transmits the subscriber information to be changed to the web server (S305).

The web server transmits the subscriber information change request message to the CPIS server 500 by using the subscriber information received from the terminal 100 (S306), receives the change completion message (S307), and changes the subscriber information normally. (100) (S308).

After changing the subscriber information, the terminal 100 releases the connection with the web server (S309).

As described above, the terminal accesses a CPIS server through a web server or a WAP gateway, and specifies a recipient address, a message retention period, a spam message to be received, and the like. By changing the service setting, it is possible to enable more subscriber-oriented data service.

As described above, in the multimedia data transmission / reception system and method considering the radio terminal resource state according to the present invention, when the MMS server transmits the multimedia data to the receiving terminal, the state of the receiving terminal is accurately known and the data is ranked according to priority. By processing, converting, and transmitting, the amount of lost multimedia data is reduced, and as many different types of media data can be provided to the receiving terminal as possible, and the user of the wireless terminal can arbitrarily select a desired receiving message so that the subscriber-first multimedia It has the effect of providing data service.

Claims (7)

A multimedia data agent unit for creating a multimedia message and managing the received multimedia message, a codec for encoding or decoding multimedia data, a subscriber information unit capable of totally transmitting and receiving information of the current terminal, and the multimedia data A wireless terminal configured to include a communication unit for transmitting and receiving; Transmitting and receiving unit for transmitting the multimedia data received from the wireless terminal to the receiving wireless terminal, Subscriber information receiving unit for receiving the status information transmitted from the subscriber information unit of the receiving terminal, Transmitting the received status information of the receiving terminal A server comprising a subscriber information transmitter for processing and a data processor for processing multimedia data according to the state information of the called terminal; And a subscriber information server configured to store and manage state information of a called terminal transmitted from a subscriber information transmitter of the server. The system of claim 1, wherein the server further comprises an interworking unit for interworking with an external messaging system and a data processing unit for processing multimedia data. The method of claim 1, wherein the data processing unit Receives the type of codec supported by the called terminal, the size of the display, and the size of the data from the subscriber information server, analyzes them in the subscriber information analysis unit, and assigns weights according to the multimedia types to suit the state of the called terminal. Multimedia data transmission and reception system in consideration of the radio terminal resource status, characterized in that for processing and transmitting to the called terminal. Receiving multimedia data from a wireless terminal or a messaging system at a server; Transmitting a data notification message to a receiving terminal of the received multimedia data, and receiving status information together with a response message according to the notification message from the receiving terminal; Updating the receiving terminal state information of the subscriber information server using the received state information; Receiving, at the server, a data reception request message from a receiving terminal, processing and converting multimedia data according to priority using the subscriber information of the subscriber information server and transmitting the same to the receiving terminal; And receiving the processed and converted multimedia data from the server at the receiving terminal, and transmitting a completion message to update the receiving terminal status information of the subscriber information server at the server. Multimedia data transmission and reception method considering. The method of claim 4, wherein the priority of the multimedia data is weighted according to the type and size of the data so that the data is sequentially transmitted from the data having the low weight to the receiving terminal. . 5. The terminal as claimed in claim 4, wherein the terminal transmits to the subscriber information server a service setting including a message reception address, a message retention period, a reception spam message, a recipient's address, and a rejection message type information. Multimedia data transmission and reception method considering the radio terminal resource status, characterized in that the connection can be changed arbitrarily. 7. The method of claim 6, wherein the terminal accesses the subscriber information server through a web server or a WAP gateway.