KR20100033747A - Method and apparatus for managing data transmissions between mobile communication terminals in data transmission mediating server - Google Patents

Abstract

PURPOSE: An apparatus for managing data transmissions between mobile communication terminals in a data transmission mediating server and a method thereof are provided to continue data reception through a proxy server until the transmission quality of a reception terminal becomes better when the transmission quality of the reception terminal is degraded, thereby completing the data transmission without transmission delay. CONSTITUTION: An information acquisition unit(110) acquires the quality value of a session connected between a transmission terminal and a reception terminal. A proxy function control unit(112) compares the session quality value with an initial session quality value. If the session quality value is lower than the initial session quality value, the proxy function control unit activates a proxy function for the stable electrical transmission of data. If the session quality value is higher than the initial session quality value, the temporarily stored data is transmitted to the reception terminal.

Description

METHOD AND APPARATUS FOR MANAGING DATA TRANSMISSIONS BETWEEN MOBILE COMMUNICATION TERMINALS IN DATA TRANSMISSION MEDIATING SERVER}

The present invention relates to a method and apparatus for managing data transmission, and more particularly, to a method and apparatus for managing data transmission in a server that mediates data transmission between a calling terminal and a receiving terminal.

Recently, with the development of wired / wireless communication technology, various technologies for connecting individuals with each other are emerging. Particularly in the mobile communication field, the development of data communication services such as voice call services and text messages has been remarkably progressed, such as providing video call services capable of making calls while looking at the other party's face.

In particular, IMS (IP Multimedia Sub-system), which is recently standardized by 3GPP (3rd Generation Partnership Project), has attracted attention as a new mobile communication means. IMS means a signal protocol and its environment for call control of multimedia in 3G (3rd Generation) networks. IMS can be used in various ways for IP-based applications such as video conferencing and VoIP based on Session Initiation Protocol (SIP). It also covers secure authenitication, service charging, QoS control for delivery maeng, and global roaming.

Currently, 3GPP IMS service through this IMS network is commercially available. The services provided by the IMS network can be classified into four categories: instant message service, video sharing service, video chat service, and file transfer service. In particular, in the case of a file transfer service, a user using an IMS terminal may transmit a file that he / she wants to send to the other party at any time, such as an instant messenger of a personal computer or a file transfer through a P2P application.

However, a problem occurs when using an existing file transfer service through an IMS terminal. For example, a file transfer request from a third terminal to a receiving terminal comes in or a session is established between a sending terminal sending a file and a receiving terminal receiving a file, and a file is transmitted. You may be asked to send a file. In this case, in the existing file transfer service, even though there is a limit on the radio resources available to the receiving terminal, the file transfer with the third terminal is allowed without change. In this case, both the file transmission with the existing originating terminal and the file transmission with the third terminal become unstable, so that the transmission speed may be remarkably slowed or, in the worst case, the file transmission may fail due to the disconnection of the session. Therefore, there is a need for a new method that can improve these problems in providing file transfer services and ensure stable file transfer.

Therefore, in the present invention, if the transmission quality of the receiving terminal deteriorates while data transmission is being performed between the calling terminal and the receiving terminal, the transmission delay or transmission is interrupted by continuing to receive data through the proxy server until the transmission quality of the receiving terminal is improved. It is an object of the present invention to provide a method and apparatus for allowing data transfer to be completed without work.

In addition, the present invention, if the transmission quality of the receiving terminal is degraded during the transmission of data between the calling terminal and the receiving terminal, thereby causing both terminals to finish the data transmission quickly by allowing the calling terminal to continue without suspending the data transmission. It is another object of the present invention to provide a method and an apparatus that enable other tasks to be performed.

In another aspect, the present invention is to provide a method and apparatus that can make the basis for providing a variety of multimedia environment and free communication environment by making the data exchange between individuals through the IMS terminal more stable.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention, which are not mentioned above, can be understood by the following description, and more clearly by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

According to an aspect of the present invention, there is provided a method of managing data transmission in a server that mediates data transmission between a calling terminal and a receiving terminal, the method comprising: obtaining a quality value of a session connected between the calling terminal and the receiving terminal; Comparing the session quality value with a minimum session quality value, and activating a proxy function for stable transmission of data when the session quality value is lower than the minimum session quality value. do.

In addition, the present invention provides a device for managing data transmission between the calling terminal and the receiving terminal, the information obtaining unit for obtaining a quality value of the session connected between the calling terminal and the receiving terminal, the session quality value and the minimum session quality value; And a proxy function controller for activating a proxy function for stable transmission of data when the session quality value is lower than the minimum session quality value as a result of the comparison.

According to the present invention as described above, if the transmission quality of the receiving terminal deteriorates during the data transmission between the calling terminal and the receiving terminal, the transmission by continuing to receive data through the proxy server until the transmission quality of the receiving terminal is improved The advantage is that the data transfer can be completed without delays or interruptions.

In addition, the present invention, if the transmission quality of the receiving terminal is degraded during the transmission of data between the calling terminal and the receiving terminal, thereby causing both terminals to finish the data transmission quickly by allowing the calling terminal to continue without suspending the data transmission. It has the advantage of being able to perform other tasks.

In addition, the present invention has the advantage that it is possible to prepare a basis for providing a variety of multimedia environment and free communication environment by making the data exchange between individuals through the IMS terminal more stable.

The above objects, features, and advantages will be described in detail with reference to the accompanying drawings, whereby those skilled in the art to which the present invention pertains may easily implement the technical idea of the present invention. In describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

In the present invention, the mobile communication terminal includes a terminal that enables wireless communication while being carried by an individual, such as a personal mobile communication terminal (PCS), a personal digital terminal (PDA), a smartphone, and a next generation mobile communication terminal (IMT-2000). In addition, in the present invention, a message is a term used to include a message used in a short message service (SMS), an enhanced messaging service (EMS), a multimedia messaging service (MMS), and the like.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

1 is a network diagram illustrating a connection relationship between an apparatus for managing data transmission and a user terminal according to an exemplary embodiment of the present invention.

In FIG. 1, the originating terminal 102 and the receiving terminal 106 perform a user-to-user communication function through the communication network 104. Here, the communication network 104 includes all communication networks such as wired and wireless communication networks, and wired and wireless complex networks such as IMS. In an embodiment of the present invention, the communication network 104 is assumed to be a communication network by IMS, and the present invention will be described through this, but is not necessarily limited thereto.

The data transmission management device 108 according to an embodiment of the present invention is connected to the communication network 104. In FIG. 1, the data transmission management device 108 is shown as being connected to the communication network 104 as a separate device, but may operate as a part of the communication network 104 as a component of the communication network 104.

The data transmission management apparatus 108 may include an information acquisition unit 110 and a proxy function control unit 112. First, the information acquisition unit 110 serves to obtain a quality value of a session connected between the originating terminal 102 and the receiving terminal 106. For example, when the calling terminal 102 and the receiving terminal 106 want to exchange files with each other, first, they undergo an attempted call authentication process, and then, through the state information synchronization and call origination function activation, the calling terminal ( A session is established between 102 and the receiving terminal 106. When a session is established between the calling terminal 102 and the receiving terminal 106 through the communication network 104, the information obtaining unit 110 receives the call from the calling terminal 102 and the receiving terminal 106 through the communication network 104. Information on the quality of the established session, that is, the session quality value is reported. This session quality value may be reported periodically according to the settings of the system operator.

The session quality value may include various values as a value representing the quality of a session between the originating terminal 102 and the receiving terminal 106. For example, the current transmission rate, response rate or data throughput of both terminals. This session quality value is used by the proxy function controller to be described later to determine whether to activate the proxy function.

The proxy function controller 112 compares the session quality value with the minimum session quality value, and activates a proxy function for stable transmission of data when the comparison result shows that the session quality value is lower than the minimum session quality value. Here, the minimum session quality value is a threshold value preset by the system operator or the like to activate the proxy function. That is, when the periodically reported session quality value becomes smaller than the preset minimum session quality value, the proxy function to be described later is activated, and stable data transmission is performed.

Hereinafter, the details of the condition under which the proxy function performed in the embodiment of the present invention is activated and the proxy function will be described. It is assumed that a file transfer request from the third terminal to the receiving terminal 106 is received while the receiving terminal 106 is receiving some data or file from the calling terminal 102. According to the prior art, in this case, the reception terminal 106 transmits a file with a third terminal without considering the available radio capacity or radio resource such as transmission speed, response speed, or data throughput of the current reception terminal 106. Will accept. The same applies to the case where the receiving terminal 106 requests file transfer from the third terminal. In this case, the file transfer speed of the receiving terminal 106 and the originating terminal 102 and the third terminal all decrease, and in the worst case, even when the file transfer is stopped. Also, from the standpoint of the originating terminal 102, the file transfer to the receiving terminal 106 is delayed by that time, which affects the speed of performing other tasks. Therefore, in this case, in order to ensure smooth data transmission between the originating terminal 102 and the receiving terminal 106, the proxy function is activated in one embodiment of the present invention.

When the session quality value obtained by the information obtaining unit 110 becomes lower than the minimum quality value, the proxy function control unit 112 first suspends data transmission from the originating terminal 102 to the receiving terminal 106. Here, it should be noted that the suspension of data transmission does not mean that the data transmission itself of the calling terminal 102 is prevented. Even if the proxy function is activated, the originating terminal 102 will continue to send data to the communication network 104, and the suspension of the data transmission means that the communication terminal 104 receives the data sent from the originating terminal 102 in the communication network 104. May also mean that the receiving terminal 106 sends only a smaller amount of data to the receiving terminal 106 than before the file transfer with the third terminal starts. However, it should be noted that the suspension of the data transmission does not disconnect the session connected between the originating terminal 102 and the receiving terminal 106. In other words, only the data transmission is suspended while the session is not disconnected.

The proxy function control unit 112 does not send the data continuously transmitted by the calling terminal 102 to the receiving terminal 106 or sends only a small amount of data while continuing to transmit the remaining data to a temporary storage space, for example, a proxy server. Temporarily store in. By doing so, the transmitting terminal 102 continuously transmits data to be sent to the receiving terminal 106 without being affected by the current transmission speed of the receiving terminal 106 or other session quality, so that no transmission delay or interruption occurs. .

In addition, even from the viewpoint of the receiving terminal 106, while the session connection with the calling terminal 102 is maintained, the data transmission with the calling terminal 102 is stopped for a while or the small amount of data transmission is continuously maintained. Radio resources can be used to handle other tasks that cause quality degradation, such as file transfers with third parties.

If the receiving terminal 106 completes another task, for example, a file transfer with a third terminal, the session quality value with the originating terminal 102 will be increased again, and the session quality value will continue to be transmitted to the proxy function control unit. Will be reported at (112). Therefore, when it is confirmed that the session quality value is higher than the minimum session quality value, the proxy function control unit transmits the remaining data which is temporarily stored in the temporary storage space to the receiving terminal 106.

In the process of performing the proxy function described above, the proxy function controller 112 continues to report the session quality values of the originating terminal 102 and the receiving terminal 106 through the communication network 104, and accordingly continues to proxy in real time. Determine whether to perform a function. The proxy function control unit 112 adjusts the capacity of the temporary storage space required for the proxy function according to the session quality value that is reported continuously even when the proxy function is activated. For example, in consideration of the transmission speed among the session quality values, if the transmission speed of the receiving terminal 106 becomes slightly higher than before when the proxy function is activated, the proxy function control unit 112 may determine the capacity of the temporary storage space. The amount of data transmitted to the receiving terminal 106 may be reduced by that much. According to the session quality value reported in real time, the temporary storage space required for the proxy function can be flexibly managed to perform more efficient and stable data transmission.

The proxy function controller 112 also obtains the remaining capacity information by comparing the total capacity of the data transmitted by the calling terminal 102 with the capacity of the data received by the receiving terminal 106, and temporarily stores the remaining capacity information using the remaining capacity information. You can also adjust the space. The originating terminal 102 may include information on the transmission capacity of the file to be sent to the Session Initiation Protocol (SIP) header when starting the file transfer to the receiving terminal 106. Therefore, the proxy function controller 112 can know the total capacity of the data to be transmitted by the calling terminal 102 through this. In addition, since the capacity of the data received by the receiving terminal 106 can be known through the session quality value, the calling terminal 102 should transmit the receiving terminal 106 to the receiving terminal 106 by comparing the total capacity information with the capacity information of the received data. The remaining capacity information of the file can be obtained. If there is a large amount of remaining capacity, the proxy function controller 112 can secure a large amount of temporary storage space to prepare for data transmission of a large amount of capacity. If the remaining data capacity is not large, the proxy function control unit 112 can quickly access data using less temporary storage space. Will be sent to the receiving terminal 106.

2 is a flowchart illustrating a flow of a data transmission management method according to an embodiment of the present invention.

In the server for mediating data transmission between the calling terminal and the receiving terminal, first, a quality value of a session connected between the calling terminal and the receiving terminal is obtained (S202). This session quality value can be obtained in real time at regular intervals. This session quality value may also include information such as current transfer rate, response rate or data throughput.

When acquiring the session quality value, it is determined whether the acquired session quality value is lower than the minimum session quality value in order to determine whether to activate the proxy function (S204). The minimum session quality value is a predetermined threshold and may vary depending on a system operator's setting. If the session quality value is higher than the minimum session quality value, since it is determined that data transmission between the originating terminal and the receiving terminal is normally performed, step S202 is continuously performed.

If it is determined that the session quality value is lower than the minimum session quality value, the proxy function for stable transmission of data is activated (S206). The proxy function activated by step S206 will be described with reference to FIG. 3.

3 is a detailed flowchart of the proxy function activation step S206 shown in FIG. 2.

First, when the proxy function is activated, data transmission to the receiving terminal is suspended (S302). Here, the data transmission is suspended means that the intermediary server temporarily stores the data transmitted by the calling terminal (S304), pauses the transmission of the stored data to the receiving terminal, or receives only a smaller amount of data than the amount of data originally transmitted. It means to send to the terminal.

Then, the session quality value obtained periodically is compared with the minimum session quality value (S306). If the session quality value is lower than the minimum session quality value, step S304 is repeated to maintain the proxy function. If the session quality value is higher than the minimum session quality value, it is determined that the data reception capability of the reception terminal is improved, and the temporarily stored data is transmitted to the reception terminal (S308).

According to the present invention, if the transmission quality of the receiving terminal deteriorates during the data transmission between the calling terminal and the receiving terminal, the transmission delay or transmission by continuing to receive data through the proxy server until the transmission quality of the receiving terminal is improved. The advantage is that the data transfer can be completed without interruption.

In addition, if the transmission quality of the receiving terminal deteriorates while data is being transmitted between the calling terminal and the receiving terminal, the calling terminal can continue the data transmission without suspending the data transmission. It has the advantage of being able to perform.

In addition, by making the data exchange between individuals through the IMS terminal more stable, there is an advantage that can provide a basis for providing a variety of multimedia environment and free communication environment.

The method of the present invention as described above can be written in a computer program. And the code and code segments constituting the program can be easily inferred by a computer programmer in the art. In addition, the written program is stored in a computer-readable recording medium (information storage medium), and read and executed by a computer to implement the method of the present invention. And the recording medium includes all types of recording media (intangible medium such as a carrier wave as well as tangible media such as CD and DVD) readable by a computer.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by.

1 is a network diagram illustrating a connection relationship between an apparatus for managing data transmission and a user terminal according to an embodiment of the present invention.

2 is a flowchart illustrating a flow of a data transmission management method according to an embodiment of the present invention.

3 is a detailed flowchart of the proxy function activation step (S206) shown in FIG.

Claims (10)

In the method for managing data transmission in the server that mediates data transmission between the calling terminal and the receiving terminal, Obtaining a quality value of a session connected between the calling terminal and the receiving terminal; Comparing the session quality value with a minimum session quality value; Activating a proxy function for stable transmission of data when the session quality value is lower than the minimum session quality value. Data transfer management method that includes. The method of claim 1, Activation of the proxy function Suspending data transmission to the receiving terminal; Temporarily storing data transmitted from the originating terminal to the receiving terminal; If it is determined that the session quality value is higher than the minimum session quality value, transmitting the temporarily stored data to the receiving terminal. Data transfer management method that includes. The method of claim 1, Adjusting the amount of temporary storage space required for the proxy function according to the session quality value. Data transmission management method further comprising. The method of claim 1, The session quality value is A method of managing data transmission, wherein at least one of a transmission rate, response rate, or data throughput. The method of claim 1, Obtaining remaining capacity information by comparing the total capacity of data transmitted by the calling terminal with the capacity of data received by the receiving terminal; Adjusting the capacity of the temporary storage space required for the proxy function by using the remaining capacity information. Data transmission management method further comprising. An apparatus for managing data transmission between a calling terminal and a receiving terminal, An information obtaining unit obtaining a quality value of a session connected between the calling terminal and the receiving terminal; A proxy function controller for comparing the session quality value with a minimum session quality value and activating a proxy function for stable transmission of data when the session quality value is lower than the minimum session quality value; Data transmission management device comprising. The method of claim 6, The proxy function control unit When the session quality value is lower than the minimum session quality value, suspends data transmission to the receiving terminal, temporarily stores data transmitted from the calling terminal to the receiving terminal, And transmitting the temporarily stored data to the receiving terminal when it is determined that the session quality value is higher than the minimum session quality value. The method of claim 6, The proxy function control unit And a data transmission management device for adjusting the capacity of the temporary storage space required for the proxy function according to the session quality value. The method of claim 6, The session quality value is At least one of a transmission rate, a response rate, or a data throughput. The method of claim 6, The proxy function control unit Data for obtaining remaining capacity information by comparing the total capacity of data to be transmitted by the calling terminal with the capacity of data received by the receiving terminal, and adjusting the capacity of the temporary storage space required for the proxy function by using the remaining capacity information. Transmission management device.

Images