KR20070074450A - Method for providing session service and system thereof - Google Patents

Abstract

A method for providing a session service and a system thereof are provided to reduce a communication overhead by acquiring a transmission authority without a specific request of a second terminal. A method for providing a session service includes the steps of: transmitting data to a server according to a temporary transmission authority or a transmission authority which is allowed from the server; informing a transmission stop of the server after completing the transmission of the data; receiving the temporary transmission authority from the server; and transmitting the corresponding data according to the temporary transmission authority in transmitting the data. The temporary transmission authority is allowed by receiving one of a SIP(Session Initiation Protocol) based TB Pre-granted message, a dedicated message for the temporary transmission authority, and a TB idle message having an identifier which represents allowance of the temporary transmission authority from the server.

Description

Session-based service provision method and system {METHOD FOR PROVIDING SESSION SERVICE AND SYSTEM THEREOF}

1 is a signal flow diagram of a conventional session-based service method.

2 is a signal flow diagram of a session based service providing method according to a first embodiment of the present invention;

3 is another signal flow diagram of a session based service providing method according to a first embodiment of the present invention;

4 is another signal flow diagram of a session-based service providing method according to a first embodiment of the present invention.

5 is a signal flowchart of a session-based service providing method according to a second embodiment of the present invention.

6 is a signal flowchart of a session-based service providing method according to a third embodiment of the present invention.

** Description of the major signs in the drawings **

100: first terminal 200: second terminal

300: server

The present invention relates to a session-based service providing method.

In general, the session-based service refers to a method of performing data communication within the generated connection after creating a logical connection for data communication between terminals.

Hereinafter, a process of performing communication in the session will be described with reference to FIG. 1.

1 is a signal flowchart of a conventional session-based service providing method.

As can be seen with reference to Figure 1, in the conventional session-based service, when the first terminal 10 completes the transmission of data, the server 30 is the first terminal 10 and the second terminal 20 Informing the idle state, the terminal that wants to transmit the next time recognizes the idle state and makes a request for transmission. Specifically, it is as follows.

1) The first terminal 10 wishing to transmit requests a transmission authority to the server 30 for data transmission.

2) Then, the server 30 grants the transmission authority to the first terminal 10 and informs the second terminal 20 that the transmission authority has been granted to the first terminal 10.

3) The first terminal 10 transmits data when the transmission right is granted.

4) Then, the server 30 transmits the data received from the first terminal 10 to the second terminal 20.

5) After the data transmission is completed, the first terminal 10 notifies the server 30 of the transmission stop.

6) Then, the server 30 informs the first and second terminals 10 and 20 that the current communication is idle.

7) The second terminal 20 confirms that the idle state, if there is data to be transmitted to the server 30 requests the transmission authority.

8) Then, the server 30 grants the transmission right to the second terminal 20.

9) The second terminal 20 transmits data when the transmission right is granted.

10) Then, the server 30 transmits the data received from the second terminal 20 to the first terminal 10.

11) After the data transmission of the second terminal 20 is completed, the second terminal 20 notifies the server 30 of the transmission.

12) Then, the server 30 informs the first and second terminals 10 and 20 that they are idle.

As can be seen from above, in the conventional session-based service, when the terminal completes the transmission of data, the server transmits a message informing the idle state to both the terminal and the other terminal, and the terminal that wants to transmit next is idle. After checking the status, the transmission authority is requested, and transmission is started.

In the above-described conventional technology, the second terminal 20 may request transmission authority for transmission, and thus may initiate transmission only after receiving transmission authority from the server 30.

However, in view of the fact that the transmission of the second terminal 20 is made in response to the transmission of the first terminal 10, the inventors of the present invention recognize that the above-described prior art process may be unnecessary. That is, the inventor of the present invention has the disadvantage of delaying the transmission start of the second terminal 20 to request the transmission authority as described above for the transmission, the second terminal 20, the communication overhead It has been recognized that it has a disadvantage.

Accordingly, an object of the present invention is to allow the start of transmission of the second terminal 20 to be performed without the above request in view of the above-mentioned disadvantages of the prior art.

In order to achieve the above object, the present invention comprises the steps of: a) transmitting data to the server in accordance with the transmission authority or temporary transmission authority granted from the server; b) after completion of the transmission of the data, notifying the server of the suspension of transmission; c) receiving temporary transfer right from the server; d) if there is data to be transmitted, providing a session-based service providing method comprising the step of transmitting the data in accordance with the temporary transmission authority.

Preferably, the granting of the temporary transfer authority may be any one of a TB Idle message including an identifier indicating the grant of the temporary transfer authority from the server, a dedicated message for temporary transfer authorization, or a SIP-based TB Pre-granted message based on SIP. By receiving, it can be achieved.

Preferably, the data may be one or more of voice, image, video, and media. The session-based service may be one of a push to talk (PTT), a push to view (PTV), and a push to data (PTD) service.

On the other hand, the present invention provides a session-based service providing method in a server, comprising the steps of: a) receiving notification of data transmission stop from any terminal participating in the service; b) in response to the notification, transmitting a temporary transfer right to all terminals participating in the service; c) receiving data from the one or more terminals that received the temporary transfer right; and d) transmitting the data of the first terminal among the received data to the other participating terminals.

Preferably, the notification of the transmission stop may be accomplished by receiving a transmission stop message, a release message, or a SIP-based TB Release message.

Preferably, the granting of the temporary transmission authority may be performed by transmitting any one of a TB Idle message including an identifier indicating the grant of the temporary transmission authority, a dedicated message for granting the temporary transmission, or a TB based TB Pre-granted message based on SIP. Can be achieved.

Preferably, the method may further include notifying the remaining participating terminals that the transmission right is occupied by the first received terminal. In this case, the notification may be achieved by transmitting a message to occupy another person's media authority. Here, the third party media transmission authority occupancy message may be, for example, a SIP based TB Taken message.

On the other hand, the present invention provides a session-based service providing method in a server, comprising the steps of: a) receiving notification of data transmission stop from any terminal participating in the service; b) in response to the notification, transmitting a temporary transfer right to all terminals participating in the service; c) receiving data from the one or more terminals that received the temporary transfer right; and d) transmitting the data of the first terminal among the one or more terminals to the other participating terminals.

Preferably, in step d), the first terminal can be identified by using a time stamp included in data received from the one or more terminals.

In addition, the present invention is a system for controlling a session-based service between one or more terminals, when receiving a data transmission interruption from any terminal participating in the service, and transmits a temporary transmission authority to all terminals participating in the service. And, when receiving data from the one or more terminals receiving the temporary transmission authority, and provides a system characterized in that the first of the received data of the received data to transmit to the other participating terminal.

In addition, the present invention is a system for controlling a session-based service between one or more terminals, when receiving a data transmission stop from any terminal participating in the service, and transmits a temporary transmission authority to all terminals participating in the service and And, when receiving data from the one or more terminals receiving the temporary transmission authority, provides a system characterized in that for transmitting the data of the first terminal of the one or more terminals to the other participating terminal.

Example

Hereinafter, a method of providing a session-based communication service according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a signal flowchart of a session-based service providing method according to a first embodiment of the present invention, FIG. 3 is another signal flowchart of a session-based service providing method according to a first embodiment of the present invention, and FIG. Another signal flow of the session-based service providing method according to the first embodiment of the present invention.

As can be seen with reference to Figs. 2 to 4, in the session-based service providing method according to the first embodiment of the present invention, after the first terminal 100 completes the transmission, when notifying the transmission stop, the server 300 grants a temporary transmission right (or a temporary right to speak) to the second terminal 200, and notifies the first terminal 100 of the idle state. In this case, the temporary transmission right granted to the second terminal 200 is valid only within a limited time, and if the second terminal 200 does not transmit data within the limited time, the server 300 may perform the first transmission. 2 notifies the terminal 200 that the temporary transmission right has been revoked. On the other hand, even if the temporary transmission authority is granted to the second terminal 200, after the first terminal 100 requests the transmission authority, if the transmission authority is granted from the server 300, the transmission will start. Can be. This first embodiment of the present invention will be described in detail below.

First, referring to FIG. 2.

1) The first terminal 100 that wants to transmit requests the server 300 for a transmission right (or a floor). In this case, the request for the transmission authority may be achieved by transmitting a transmission authority request message or a talk request message (TB Request) message based on a Session Initiation Protocol (SIP).

2) Then, the server 300 grants the transmission authority to the first terminal 100 and informs the second terminal 200 that the transmission authority is occupied by the first terminal 100. In this case, the granting of the transmission authority may be achieved by transmitting a transmission authorization message or a SIP-based TB Granted message, and the occupation of the transmission authority may be known by transmitting another media transmission authority occupancy message. Here, the third party media transmission authority occupancy message may be, for example, a SIP-based TB Taken message.

3) The first terminal 100 transmits data after receiving the transmission right.

4) The server 300 transmits the data received from the first terminal 100 to the second terminal 200.

5) Then, when the data transmission of the first terminal 100 is completed, the first terminal 100 notifies the server 300 of the transmission stop. In this case, the transmission stop may be known by transmitting a transmission stop message, a release message, or a SIP-based TB Release message to the server 300.

6) Then, the server 300 informs the first terminal 100 that the current communication is idle, and grants the temporary transmission authority to the second terminal 200. In this case, the idle state may be known by transmitting an idle state message, or a SIP-based TB Idle message, and the granting of the temporary transmission authority may be achieved by including an identifier indicating the grant of the temporary transmission authority in the TB Idle message. Can be. Alternatively, this may be accomplished by transmitting either a dedicated message for temporary transmission authorization or a SIP-based TB Pre-granted message.

7) After receiving the temporary transmission right, the second terminal 200 transmits data to the server 300 when there is data to be transmitted.

8) In response to receiving the data from the second terminal 200, the server 300 informs the first terminal 100 that the transmission authority is occupied. At this time, the possession of the transmission authority may be known by transmitting another media transmission authority occupation message. Here, the third party media transmission authority occupancy message may be, for example, a SIP based TB Taken message.

9) Subsequently, the server 300 transmits data received from the second terminal 200 to the first terminal 100.

10) After that, when the data transmission of the second terminal 200 is completed, the second terminal 200 notifies the transmission stop. In this case, the transmission stop may be known by transmitting a transmission stop message, a release message, or a SIP-based TB Release message to the server 300.

11) Then, the server 300 notifies the second terminal 200 that the current communication is in an idle state, and grants a temporary transmission right to the first terminal 100. In this case, the idle state may be known by transmitting an idle state message, or a SIP-based TB Idle message, and the temporary transmission right may be granted by including an identifier indicating granting of a temporary transmission right in the TB Idle message. have. Or, it may be granted by transmitting any one of a dedicated message for temporary transmission authorization, or a SIP-based TB Pre-granted message.

12) After receiving the temporary transmission right, the first terminal 200 transmits data to the server 300 when there is data to be transmitted.

13) In response to receiving the data from the first terminal 100, the server 300 notifies the second terminal 200 that the transmission authority is occupied. At this time, the possession of the transmission authority may be known by transmitting another media transmission authority occupation message. Here, the third party media transmission authority occupancy message may be, for example, a SIP based TB Taken message.

14) Subsequently, the server 300 transmits data received from the first terminal 100 to the second terminal 200.

15) After that, when the data transmission of the first terminal 100 is completed, the first terminal 100 notifies the server 300 of the transmission stop. In this case, the transmission stop may be known by transmitting a transmission stop message, a release message, or a SIP-based TB Release message.

16) Then, the server 300 notifies the first terminal 100 that the current communication is idle, and grants the temporary transmission authority to the second terminal 200.

On the other hand, as can be seen with reference to Figure 3, according to the first embodiment of the present invention, even if the temporary transmission authority is granted to the second terminal 200, the first terminal 100 requests the transmission authority If granted, the transfer can be initiated.

Since the signal flows of 1) to 6) are the same as those of Fig. 2, they will be applied mutatis mutandis.

7) When the first terminal 100 confirms that the idle state has additional data to be transmitted, the first terminal 100 requests the server 300 for a transmission authority. In this case, the request for the transmission authority may be achieved by transmitting a transmission authority request message or a SIP-based TB Request message.

8) When the server 300 receives the request for the transmission right, if there is no data reception from the second terminal 200 to which the temporary transmission right is granted, the server 300 grants the transmission right to the first terminal 100. Informs the second terminal 200 that the transmission right has been occupied. In this case, the grant of the transmission authority may be achieved by transmitting a transmission authorization message or a SIP-based TB Granted message. In addition, the seizure of the transmission right may be known by sending another media transmission authority occupancy message. Here, the third party media transmission authority occupancy message may be a SIP based TB Taken message.

9) The first terminal 100 transmits data when the transmission right is granted.

10) The server 300 transmits the data received from the first terminal 100 to the second terminal 200.

On the other hand, as can be seen with reference to Figure 4, according to the first embodiment of the present invention, the temporary transmission authority granted to the second terminal 200 is valid only within a limited time, the second terminal 200 If the data is not transmitted within this limited time, the server 300 may revoke the temporary transmission right to the second terminal 200.

Since the signal flows of 1) to 6) are the same as those of Fig. 2, they will be applied mutatis mutandis.

7) The second terminal 200 has been granted the temporary transmission right, but there is no data to transmit and wait.

8) The server 300 withdraws the temporary transmission right to the second terminal 200 when the data is not received from the second terminal 200 granted the temporary transmission right within a certain time limit. Notify and inform the first terminal 100 that it is idle. At this time, the revocation of the transmission right may be known by transmitting a transmission right revocation message or a SIP-based TB Revoke message.

9) The second terminal 200 accepts the revocation of the temporary transfer right to the server 300. In this case, the withdrawal acceptance may be achieved by sending a withdrawal acceptance message or a SIP-based TB Release message to the server 300.

10) After that, the first terminal 100 requests the server 300 for a transmission right.

11) Then, the server 300 grants the transmission authority to the first terminal 100 and informs the second terminal 200 that the transmission authority is occupied.

12) The first terminal 100 transmits data when the transmission right is granted.

13) The server 300 transmits the data received from the first terminal 100 to the second terminal 200.

As can be seen from above, the session-based service providing method according to the first embodiment of the present invention, in order to solve the problems of the prior art, the second is made as a response to the transmission of the first terminal 100 In order to achieve the transmission of the terminal 200 without a separate request, the second terminal 200 may be granted a temporary transmission right.

However, in the method for providing a session based service according to the first embodiment, the server 300 notifies the first terminal 100 of the idle state according to the expiration of the time limit of the temporary transfer right, and the second terminal. When the terminal 200 is notified of the withdrawal of the temporary transmission authority, but the second terminal 200 is not reached by the delay, the second terminal 200 may not recognize this and may include a possibility of transmitting data. have. In addition, in such a situation, the first terminal 100 requests the transmission authority to the server 300, and receives the transmission authority to transmit data, thereby transmitting the second terminal 200 and the first terminal 100. This implies the possibility of a collision with the. This possibility is solved by the session-based service providing method according to the second embodiment of the present invention as follows.

5 is a signal flowchart of a session-based service providing method according to a second embodiment of the present invention.

As can be seen with reference to Figure 5, in the session-based service providing method according to a second embodiment of the present invention, after the first terminal 100 participating in the service has completed the transmission of data, the data When the transmission stop of the server 300, the server 300 is participating in the service, it is characterized in that the temporary transmission authority to all the terminals, that is, both the first and second terminals (100, 200). In addition, the method transmits (or relays) data that first arrives at the server 300 among the data received from the first and second terminals 100 and 200 to which the temporary transmission right is granted. Characterization (i.e. arrival priority). Specifically, it is as follows.

The process from 1) to 5) is the same as FIG.

6) The server 300 grants temporary transmission authority to all terminals participating in the service, that is, both the first and second terminals 100 and 200 in response to the transmission stop of the first terminal 100. do. In this case, the temporary transmission right may be granted to the first and second terminals at the same time, or may be granted first to either side according to various conditions such as priority. Alternatively, in response to the transmission stop of the first terminal 100, the server 300 may grant a temporary transmission right by classifying according to whether the temporary transmission right function of the terminals participating in the service is supported. In this case, the temporary transfer right may not be granted to a terminal that does not support the temporary transfer right function. If the terminal that does not support the temporary transfer authority function, as described above, the terminal may request the transfer authority to the server 300 and transmit data after receiving the transfer authority from the server 300 as described above. have. In this case, the grant of the temporary transmission right may be achieved by including an identifier indicating the grant of the temporary transmission right in the TB Idle message. Alternatively, this may be accomplished by sending a dedicated message for temporary transmission authorization or a SIP-based TB Pre-granted message.

7) After receiving the temporary transmission right, the first terminal 100 transmits the data to the server 300 when there is data to be transmitted.

8) The second terminal 200 also transmits the data to the server 300 when there is data to be transmitted after receiving the temporary transmission right.

9) The server 300 receives data from the terminal participating in the service, that is, the first terminal 100 and the second terminal 200, respectively. At this time, it is confirmed that the data of the second terminal 200 has been received first, and informs the first terminal 100 that the transmission authority is occupied by the second terminal 200. This may be accomplished by sending a third party media transfer rights seizure message. Here, the third party media transmission authority occupancy message may be a SIP based TB Taken message as shown.

10) Subsequently, the server 300 transmits data received from the second terminal 200 to the other terminal participating in the service, that is, the first terminal 100.

6 is a signal flowchart of a session-based service providing method according to a third embodiment of the present invention.

As can be seen with reference to FIG. 6, in the session-based service providing method according to the third embodiment of the present invention, data is first transmitted among the first and second terminals 100 and 200 to which temporary transmission authority is granted. It is characterized by transmitting the data of one terminal to another terminal (that is, the transmission priority method). Specifically, it is as follows.

Processes 1) to 6) are the same as those of FIG.

7) After receiving the temporary transmission right, the first terminal 100 transmits the data to the server 300 when there is data to be transmitted. In this case, the first terminal 100 may include a time stamp and transmit the data.

8) The second terminal 200 also transmits the data to the server 300 when there is data to be transmitted after receiving the temporary transmission right. In this case, the second terminal 200 transmits a time stamp included in the data.

9) The server 300 receives data from terminals participating in the service, that is, the first terminal 100 and the second terminal 200, respectively. In this case, although the data of the second terminal 200 is first received, the server 300 uses the time value of the time stamp included in the data, so that the first terminal 100 receives the second terminal 200. First, it confirms that data is transmitted, and notifies the second terminal 200 that the transmission authority is occupied by the first terminal 100. This can be accomplished by sending a message for possessing another media transmission right. Here, the third-party media transmission authority occupancy message may be a SIP-based TB Taken message as shown.

10) Next, the server 300 transmits the data received from the first terminal 100 to the second terminal 200.

While the present invention has been described so far, it has been described that a service is provided between the first terminal 100 and the second terminal 200, but the present invention is equally applicable to one-to-many services as well as one-to-one.

In addition, the session-based service providing method according to the present invention described so far can be applied to services such as PTT (Push To Talk), PTV (Push TO View), and PTD (Push To Data) that can be implemented in 3G mobile communication networks. have.

In addition, the method according to the invention described so far may be implemented in software, hardware, or a combination thereof. For example, the method according to the present invention may be stored in a storage medium (eg, mobile terminal internal memory, flash memory, hard disk, etc.) and may be stored in a processor (eg, mobile terminal internal microprocessor). It may be implemented as codes or instructions in a software program that can be executed by.

In addition, the first terminal 100 and the second terminal 200 described so far may include an RF transceiver module, a display unit, a sound output unit, a microphone, a key input unit, a camera, and a controller. In addition, the server 300 may include a network interface, a storage device, and a processor.

In the above description of the preferred embodiments of the present invention by way of example, the scope of the present invention is not limited only to these specific embodiments, the present invention is in various forms within the scope of the spirit and claims of the present invention Can be modified, changed, or improved.

The present invention considers that the transmission of the second terminal 200 is made as a response to the transmission of the first terminal 10, so that the second terminal 200 can obtain the transmission right without a special request. In addition, the second terminal 200 has an advantage of allowing the transmission to be started quickly and reducing the communication overhead.

Claims (25)

a) transmitting data to the server in accordance with the transfer right or the temporary transfer right granted from the server; b) after completion of the transmission of the data, notifying the server of the suspension of transmission; c) receiving temporary transfer right from the server; d) if there is data to be transmitted, transmitting the corresponding data according to the temporary transmission authority. The method of claim 1, wherein the grant of the temporary transfer authority A session is achieved by receiving any one of a TB Idle message including an identifier indicating the grant of the temporary transmission authority, a dedicated message for temporary transmission authorization, or a SIP-based TB Pre-granted message from the server. Based service delivery method. The method of claim 1, wherein the data is Session-based service providing method characterized in that any one or more of voice, image, video, media (Media). The method of claim 1, wherein the session-based service Session based service providing method characterized in that any one of the PTT service, PTV service, or PTD service. As a session-based service providing method in a server, a) receiving notification of interruption of data transmission from any terminal participating in the service; b) in response to the notification, transmitting a temporary transfer right to all terminals participating in the service; c) receiving data from the one or more terminals that received the temporary transfer right; d) transmitting the data of the first terminal received among the received data to the other participating terminals. The method of claim 5, wherein the data is Session-based service providing method characterized in that any one or more of voice, image, video, media (Media). The method of claim 5, wherein the session-based service Session based service providing method characterized in that any one of the PTT service, PTV service, or PTD service. 6. The method of claim 5, wherein the notification of interruption of transmission is A method for providing a session based service, characterized in that achieved by receiving a transmission stop message, a release message, or a SIP-based TB release message. 6. The method of claim 5, wherein granting the temporary transfer right is Session-based service, characterized in that achieved by transmitting any one of the TB Idle message containing an identifier indicating the grant of the temporary transmission authority, a dedicated message for the temporary transmission authorization, or a SIP-based TB Pre-granted message How to Provide. The method of claim 5, And notifying the remaining participating terminals that the transmission right is occupied by the first terminal that is received first. The method of claim 9, wherein the notification is Method of providing a session-based service, characterized in that achieved by transmitting a media transmission authority occupancy message (SIP-based TB Taken message). The method of claim 5, wherein in step d) The method of claim 1, wherein the first received data among the received data can be identified through a time value of the server. As a session-based service providing method in a server, a) receiving notification of interruption of data transmission from any terminal participating in the service; b) in response to the notification, transmitting a temporary transfer right to all terminals participating in the service; c) receiving data from the one or more terminals that received the temporary transfer right; d) transmitting the data of the first terminal among the one or more terminals to the other participating terminals. The method of claim 13, wherein the data is Session-based service providing method characterized in that any one or more of voice, image, video, media. The method of claim 13, wherein the session-based service is Session based service providing method characterized in that any one of the PTT service, PTV service, or PTD service. 14. The method of claim 13, wherein the notification of interruption of transmission is A method for providing a session based service, characterized in that achieved by receiving a transmission stop message, a release message, or a SIP-based TB release message. The method of claim 13, wherein the grant of the temporary transfer authority Session-based service, characterized in that achieved by transmitting any one of the TB Idle message containing an identifier indicating the grant of the temporary transmission authority, a dedicated message for the temporary transmission authorization, or a SIP-based TB Pre-granted message How to Provide. The method of claim 13, And notifying the remaining participating terminals that the transmission authority is occupied by the first terminal to which the first transmission has been made. The method of claim 13, wherein the notification is Method of providing a session-based service, characterized in that achieved by transmitting a media transmission authority occupancy message (SIP-based TB Taken message). The method of claim 13, wherein in step d) The method of claim 1, wherein the first terminal is transmitted by using the time stamp included in the data received from the at least one terminal. A system for controlling a session-based service between one or more terminals When a data transmission stop is notified from any terminal participating in the service, the temporary transmission right is transmitted to all terminals participating in the service, and when data is received from the one or more terminals receiving the temporary transmission right, The system characterized in that for transmitting the data of the first terminal received among the received data to the other participating terminal. A system for controlling a session-based service between one or more terminals When a data transmission stop is notified from any terminal participating in the service, the temporary transmission right is transmitted to all terminals participating in the service, and when data is received from the one or more terminals receiving the temporary transmission right, The system characterized in that for transmitting the data of the first terminal of the one or more terminals transmitted to the other participating terminal. The terminal of claim 22, wherein the first terminal is And verifyable using a time stamp included in data received from the one or more terminals. The method of claim 5, wherein all of the terminals are classified into a terminal supporting a temporary transmission authority function and a terminal not supporting the temporary transmission authority function. 25. The method of claim 24, wherein the temporary transmission authority is not transmitted to a terminal that does not support the temporary transmission authority function.

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