KR20050013815A - Method and system for managing data session - Google Patents

Abstract

PURPOSE: A method and a system for managing a data session are provided to set a data session between a calling terminal and a called terminal if a data session setup request is received in the called terminal which does not access a data communication network, thereby effectively managing network resources since the called terminal does not have to be always connected to the communication network. CONSTITUTION: A data session service management server(160) receives a data session setup request message including called terminal information from a calling terminal(210), and confirms state information of a called terminal(120)(215). The server(160) checks whether a data session setup is available between the calling terminal and the called terminal(120)(220). If so, the server(160) sends a wake-up short message to the called terminal(120)(230). The server(160) receives a wake-up reply message(250), and transmits a data session setup request message(255). The server(160) receives a data session setup reply message, and sends a data session setup complete message to the calling terminal(270).

Description

METHOD AND SYSTEM FOR MANAGING DATA SESSION

The present invention relates to a data session management method and system, and in particular, to provide a variety of data session services on a system that lacks network resources, a data session management method and system that can easily replace a variety of additional services or protocol changes It is about.

Due to the development of communication technology, video call and data transmission and reception are possible in addition to the service of voice call or text message transmission between users located at remote locations.

In order to receive a data session call between multiple user terminals for video calls, video chats, file / data transmission, network games, etc., a specific program installed on the receiving terminal may request a request message of the calling terminal in a client-server service model. Must be received.

In the case of the existing IP data call, since a relatively resource-rich personal computer is used, it is possible to simultaneously maintain several data session programs, and each can easily maintain network resources. However, in case of a mobile communication terminal, a relatively limited and expensive radio resource is used, and a data session program for an incoming call cannot be maintained at all times due to battery and processor problems. Receiving mechanism is needed.

In order to solve this problem, a method of shortening a request message of a sender in a short message (SMS) has been proposed. And, this method has an advantage in terms of time and resources. However, this method has a problem in that when a new service or function is constantly added or there are many changes in the packet for a data session, an inappropriate result may be obtained.

Accordingly, it is an object of the present invention that a data session establishment request can be established between two originating terminals when a request for data session establishment is received from an originating terminal that is not connected to a data communication network, so that the destination terminal must always be connected to the data communication network. Therefore, to provide a data session management method and system that can efficiently manage network resources.

Another object of the present invention is to provide a data session management method and system that can easily cope with various additional service initiation or protocol change in a mobile communication service system.

It is still another object of the present invention to provide a data session management method that can save battery resources and communication charges of a called terminal since the called terminal does not need to be always connected to a data communication network in preparation for a session connection request from an arbitrary calling terminal. To provide a system.

It is still another object of the present invention to provide a data session management method and system capable of providing a proper data service to a caller by allowing a calling terminal to attempt a data session connection with a called terminal not currently connected to a data communication network.

1 is a diagram illustrating a data session service network configuration according to an embodiment of the present invention.

2 is a flowchart illustrating a method of performing a terminal Wake-Up function of a data session service management server according to an exemplary embodiment of the present invention.

3 is a flowchart illustrating a method of performing a wake-up function upon receiving a wake-up message of a called terminal according to an embodiment of the present invention.

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

110: calling terminal

120: called terminal

130: base station (BTS: Base-station Transceiver Subsystem)

140: wireless data service device

150: Short Message Service Center (SMSC)

160: data session service management server 170: gateway

In order to achieve the above objects, according to an aspect of the present invention, there is provided a method for causing a terminating terminal to access a data communication network to transmit packet data received from an originating terminal to a terminating terminal that is not connected to a data communication network. Checking the status information of the called terminal corresponding to the called terminal information received from the terminal, checking whether data session setting between the calling terminal and the called terminal is possible using the status information of the called terminal; Transmitting the Wake-Up Short message to the called terminal if the data session is possible, and receiving a Wake-Up response message from the called terminal connected to the data communication network in correspondence with the Wake-Up short message. Between the calling terminal and the called terminal. And a session connection, wherein the called terminal accesses the data communication network in response to the wake-up response message, and automatically executes a service program necessary for receiving and displaying the packet data. A data session management method is provided, characterized in that it transmits a -Up response message, and a system, apparatus, and a recording medium for enabling the data session management method are provided. The state information of the called terminal includes at least one of power on / off and whether the service program is provided, and it may be determined that the data session cannot be established when the power off state or the service program is in a poor state. .

In addition, the data session management method according to the present invention may include at least one of an identifier indicating that the Wake-Up short message is a Wake-Up short message, service type information corresponding to the packet data, and caller information.

The data session management method according to the present invention may further include transmitting an error message corresponding to the call rejection message to the calling terminal when the call rejection message is received from the called terminal. According to an embodiment, in a method in which a user terminal performs a data communication network connection automatically by a request of a mobile communication service system, receiving a Wake-Up short message from a data session service management server, wherein the Wake-Up The short message includes at least one of an identifier indicating that the message is a Wake-Up short message, service type information corresponding to the packet data, and caller information; and performing a connection to a data communication network; Executing a corresponding service program; and the Wake-Up stage. And transmitting a Wake-Up response message corresponding to the message to the data session service management server, and establishing a data session with a calling terminal corresponding to the caller information. The present invention provides a system, apparatus, and a recording medium for enabling the data communication network connection method.

1 is a diagram illustrating a data session service network configuration according to an embodiment of the present invention.

Referring to FIG. 1, a data session service network configuration includes a calling terminal 110, a called terminal 120, a base station (BTS) (base-station transceiver subsystem) 130a, 130b hereinafter referred to as 130, and a wireless data service. Device 140, Short Message Service Center (SMSC) 150, Data Session Service Management Server 160, Gateway 170, Other Terminals (180a, 180b, 180c-below, collectively referred to as 180) The calling terminal 110, the called terminal 120 and the other terminal 180 are devices for accessing a data communication network to use a packet data service, and include a mobile communication terminal and a personal digital assistant (PDA). Assistant), a notebook computer, etc. may correspond to this. In addition, the calling terminal 110, the called terminal 120 and the other terminal 180 may all be the same type of device, the function to perform all may be the same, but each name is applied differently for convenience of description. .

A base station (BTS) 130 is a network termination device that is directly coupled to a subscriber station through a wireless communication network by performing baseband signal processing, wired and wireless conversion, and transmission and reception of a wireless signal. The base station (BTS) 130 may include a baseband processing unit consisting of an RF radio processing unit and a channel and a controller for processing a CDMA signal, and each unit of the base station (BTS) 120 is an interface unit, a CDMA mod. / Demod unit, Transceiver unit, RF unit, GPS unit, etc. The wireless data service device 140 may be an interworking function (IWF), a packet data serving node (Packet Data ServingNode). An IWF is a wireless data device for connecting a mobile communication system and a public switched telephone network (PSTN) / Internet. The packet data serving node (PDSN) is configured to provide user information corresponding to user terminals from intelligent network systems of a service control point gateway (SCP Gateway) and a triple authentication (AAA) server connected through an IP network. Accordingly, a device for providing a data service.

The short message service center (SMSC) 150 is a device that transmits a short message received from an arbitrary user terminal or the like to the requested receiving terminal.

The data session service management server 160 generates charging data for the data session service performed by a request of any user terminal, manages each session, and various additional services (eg, a call-based data session service). Is a device for providing a missed mailbox, automatic switching, etc.) A gateway 170 is a device for performing various conversions necessary for a terminal of one network to communicate with terminals of another network between two different networks. It is a network point that acts as an entrance to another network.

Here, the short message service center (SMSC) 150, the data session service management server 160, and the gateway 170 are described as separate independent devices, but one physical server including the functions of the devices (centralized). Of course, it can be performed by. For example, the data session service management server 160 may include the functions of the short message service center (SMSC) 150 and the gateway 170.

Of course, the actual data session service network configuration may further include a home location register, a visitor location register, a base station controller, a mobile switching center, and the like. Since the description is not related to the gist of the present invention, a description thereof will be omitted. Thus, the functions of the general data session service network components have been described with reference to FIG. 1, and the short message service center (SMSC) 150 according to the present invention is described. ) And the functional features of the data session service management server 160 have not been described in detail. However, this may be easily understood with reference to the following description.

2 is a flowchart illustrating a method of performing a terminal Wake-Up function of a data session service management server according to an exemplary embodiment of the present invention.

That is, FIG. 2 shows that the receiving terminal 120 receives a wake-up message from the short message service center (SMSC) 150 at the request of the data session service management server 160, and then establishes a data session with the calling terminal. To explain the process. However, in the following, the subject that substantially transmits the short message to the called terminal is the short message service center (SMSC) 150, but the request is made by the data session service management server 160, so the short message transmission is performed by the data session service management. It will be described as being made by the server 160. Of course, the data session service management server 160 may further include a short message transmission / reception function. For example, the calling terminal 110 accesses the data communication network and attempts to make a video call to the called terminal 120. Referring to FIG. 2, in step 210, the data session service management server 160 makes a call. The terminal 110 receives a data session establishment request message including the called terminal information (for example, a telephone number and a mobile identification number (MIN)).

In step 215, the data session service management server 160 checks state information of the called terminal 120 corresponding to the called terminal information received through step 210. The state information of the called terminal 120 that can be checked through step 215 includes whether the corresponding service can be performed, the terminal power state, whether the called terminal 120 is already performing the service. That is, the data session service management server 160 may check whether the called terminal 120 can perform a corresponding service using a subscriber database in which terminal information of each subscriber is stored. This is because when the called terminal 120 does not have a function to perform a corresponding service, the data session establishment with the calling terminal 110 has no meaning. In addition, the data session service management server 160 may check whether the called terminal 120 is powered on by using the called terminal information registered in the home location register (HLR). In addition, the data session service management server 160 uses the terminal information management device (IPLS: IP Location Server) that manages the location and status of the 1xEV-DO subscriber. Check whether or not. For example, when the video call request is transmitted from the calling terminal 110 to the called terminal 120, it is to check whether the called terminal 120 is already performing a video call with another user terminal. In step 220, the data session service management server 160 checks whether a data session can be established between the calling terminal 110 and the called terminal 120 using the result of the check in step 215.

If it is not possible to set up the data session as a result of the check in step 220, the flow proceeds to step 225 to transmit an error message to the calling terminal 110.

If the terminating terminal 120 is powered off, an error message indicating that the terminating terminal 120 is powered off is transmitted to the calling terminal 110 through step 225.

In addition, if the terminating terminal 120 does not include a function for performing a corresponding service, an error message indicating that the terminating terminal 120 cannot perform the corresponding service through step 225 (for example, service cannot be supported). ) Is transmitted to the calling terminal 110.

In addition, when the called terminal 120 is already performing the service with another user terminal, through step 225, an error message indicating that the called terminal 120 is already performing the corresponding service (for example, a video call) Medium) is transmitted to the calling terminal 110.

However, if it is possible to establish a data session as a result of the check in step 220, the flow proceeds to step 230 and transmits a wake-up short message to the called terminal 120. When the called terminal 120 is not connected to a data communication network (eg, an IP network), the data session service management server 160 is connected to the data communication network (eg, an IP network). The Wake-Up Short message may be transmitted to the called terminal 120 when the program is connected to the program but the program for performing the service is not executed. The Wake-Up Short message is a type of SMS message. The method may further include an identifier indicating that the message is a wake-up message, a requested service type, a calling terminal number, and calling terminal information.

The called terminal 120 receives the Wake-Up short message from the data session service management server 160 (or through the short message service center (SMSC) 150) in step 235, and proceeds to step 240 to proceed with the terminal Wake- Perform the Up procedure.

The terminal wake-up procedure performed by using the received Wake-Up short message is performed if the destination terminal 120 is not connected to the data communication network. It may include a process of executing. In addition, if the called terminal 120 is connected to the data communication network, the method may include executing the corresponding application service program to receive the packet. In step 240, if the terminal wake-up procedure is completed, step 245. The terminating terminal 120 at the data session service management server 160 (or via the short message service center (SMSC) 150) a Wake-Up response message (e.g., a Hello message indicating that packet reception is possible). ).

The data session service management server 160 receives the wake-up response message in step 250, and proceeds to step 255 to transmit a data session establishment request message.

The destination terminal 120 receives the data session establishment request message from the data session service management server 160 in step 260, and proceeds to step 265 to transmit the data session establishment response message to the data session service management server 160.

In step 270, the data session service management server 160 receives the data session establishment response message from the destination terminal 120, and transmits a data session establishment completion message to the calling terminal 110.

In step 255 to step 270, the caller message (for example, voice and video packet) that the data session service management server 160 is waiting to transmit is transmitted through the data call path opened by the destination terminal 120 and the response message ( For example, it may correspond to a process of receiving a voice and video packet) and transmitting it to the calling terminal 110. As described above, the data session service management server 160 according to the present invention is in the state of the called terminal 120. The session establishment procedure with the calling terminal 110 may be performed using the information. In order to perform such an operation, the data session service management server 160 manages a message by dividing a terminal function determination function, a terminal state determination function, an SMS transmission request function, an SMS reception function, a sender side and a receiver side pair. Function, and charging data generation function that distinguishes the sender and the receiver.

And, in order to perform the data session service management method according to the present invention, each user terminal receives a short message to determine whether it is a Wake-Up message, a data call connection function when receiving a Wake-Up message, and executes the corresponding service program Function, an SMS message reply function upon rejection (see FIG. 3), and the like.

3 is a flowchart illustrating a method of performing a wake-up function when a wake-up message is received by a called terminal according to an embodiment of the present invention.

However, in describing the method of performing the wake-up function in the called terminal 120 with reference to FIG. 3, the same reference numerals as in FIG. 2 are used in the same steps as those of FIG. 2.

Referring to FIG. 3, in operation 235, the called terminal 120 receives a wake-up message from the data session service management server 160.

In step 315, the called terminal 120 checks whether or not a call rejection setting (that is, a setting for ignoring the wake-up message) is set by the user.

If the incoming call rejection is set as a result of the check in step 315, the flow proceeds to step 320 to transmit a reject message to the data session service management server 160. When the rejection message is received from the called terminal 120, the data session service management server 160 transmits the called rejection message to the calling terminal 110 without performing a session connection between the calling terminal 110 and the called terminal 120. do. For example, in the case of a video call, an incoming call request may be made by incorrectly designating a destination terminal 120, and even if a session connection is made even when the video connection is made incorrectly, the subscriber of the destination terminal 120 bears a certain fee as a data service fee. Will be done. Therefore, in order to prevent such a disadvantage, call rejection setting is necessary. Of course, even when the destination terminal 120 transmits the rejection message to the data session service management server 160 in the form of a short message, a certain cost may occur. In this case, the denial message may not be transmitted, and the data session service management server 160 may recognize that the called subscriber has set the rejection of the call if there is no response for a predetermined time.

In addition, if the call rejection is not set as a result of the check in step 315, after performing the called terminal wake-up step (step 240) as described above with reference to FIG. 2, the data session service management server 160 is performed. Send a wake-up response message.

The method of managing session establishment in a CDMA network has been described as an example of a video call. However, the present invention can be similarly applied to various communication services such as video chat, games, instant messenger, etc. in various communication environments such as wireless LANs as well as CDMA networks.

The present invention is not limited to the above embodiments, and many variations are possible by those skilled in the art within the spirit of the present invention.

As described above, the method and system for managing a data session according to the present invention enables the receiving terminal to always establish a data session when a data session establishment request is received from an originating terminal to a destination terminal not connected to the data communication network. It does not need to be connected to the data network so that it can efficiently manage network resources.

In addition, the present invention facilitates coping with various additional service initiation or protocol change in a mobile communication service system.

In addition, according to the present invention, since the called terminal does not need to be always connected to the data communication network in preparation for a session connection request from any calling terminal, it is possible to save battery resources and reduce communication charges of the called terminal.

In addition, the present invention can also attempt to connect the data session to the destination terminal that is not currently connected to the data communication network can provide the appropriate data service to the caller.

Claims (7)

A method for connecting a called terminal to a data communication network to transmit packet data received from an originating terminal to a called terminal not connected to a data communication network, the method comprising: Checking status information of the called terminal corresponding to the called terminal information received from the calling terminal; Checking whether a data session can be established between the calling terminal and the called terminal using state information of the called terminal; If the data session can be established, sending a Wake-Up Short message to the called terminal; Receiving a wake-up response message from the called terminal connected to a data communication network in response to the wake-up short message; Performing a data session connection between the calling terminal and the called terminal; Including, The called terminal accesses the data communication network in response to the wake-up response message, automatically executes a service program necessary for receiving and displaying the packet data, and then transmits the wake-up response message. Data session management method characterized in that. The method of claim 1, The state information of the called terminal includes at least one of whether power is on or off or whether the service program is provided. Determining that the data session cannot be established in a power-off state or in an incomplete state of the service program. Data session management method characterized in that. The method of claim 1, The Wake-Up Short message includes at least one of an identifier indicating that it is a Wake-Up Short message, service type information corresponding to the packet data, and caller information. Data session management method characterized in that. The method of claim 1, When an incoming rejection message is received from the called terminal, transmitting an error message corresponding to the incoming rejection message to the calling terminal; Data session management method further comprising. A method for a user terminal to automatically perform a data communication network connection at the request of a mobile communication service system, Receiving a Wake-Up short message from a data session service management server, wherein the Wake-Up short message is at least an identifier indicating that it is a Wake-Up short message, service type information corresponding to the packet data, and caller information; Contains one; Performing a connection to a data communication network; Executing a service program corresponding to the service type information; Sending a Wake-Up Response message corresponding to the Wake-Up Short message to the data session service management server; Establishing a data session with the calling terminal corresponding to the calling party information; Data communication network connection method comprising a. An apparatus for connecting the called terminal to a data communication network for transmitting packet data received from an originating terminal to a called terminal not connected to the data communication network, Means for checking status information of the called terminal corresponding to the called terminal information received from the calling terminal; Means for checking whether a data session can be established between the calling terminal and the called terminal using state information of the called terminal; means for sending a Wake-Up short message to the called terminal if the data session can be set; Means for receiving a Wake-Up Response message from the called terminal connected to a data communication network corresponding to the Wake-Up Short message; Means for performing a data session connection between the calling terminal and the called terminal Including, The called terminal accesses the data communication network in response to the wake-up response message, automatically executes a service program necessary for receiving and displaying the packet data, and then transmits the wake-up response message. Data session management device, characterized in that. A program of instructions that can be executed by a user terminal to implement a method of accessing a data network is tangibly implemented, and in a recording medium that can be read by the user terminal, Receiving a Wake-Up short message from a data session service management server, wherein the Wake-Up short message includes an identifier indicating at least a Wake-Up short message, service type information corresponding to the packet data, and caller information -Establishing a connection to a data communication network; Executing a service program corresponding to the service type information; Sending a Wake-Up Response message corresponding to the Wake-Up Short message to the data session service management server; Establishing a data session with the calling terminal corresponding to the calling party information; Recording medium that records a program that can run.