KR20060094743A - System and method for providing information of log-on to push to talk - Google Patents

Abstract

The present invention provides a PTT log-on information providing system, monitoring the log on / off state of the specific counterpart terminal in response to the request for log on information to specific counterpart terminals, and the real-time log on information of the specific counterpart terminals PTT server providing in a manner irrelevant to whether or not the connection is connected to the PTT server, and requesting log-on information on the specific counterpart terminals from the PTT server according to a user's request, and receiving log-on information on specific counterpart terminals from the PTT server. And update the mobile terminal. Therefore, the present invention has an effect of allowing a user of the PTT system to know whether a specific counterpart currently logs on to the PTT service without logging on to the PTT service.

PTT Service, PTT Server, Logon Information, WAP Push

Description

SYSTEM AND METHOD FOR PROVIDING INFORMATION OF LOG-ON TO PUSH TO TALK}

1 is a block diagram of a system for providing PTT (PUSH TO TALK) log on information according to an embodiment of the present invention

2 is a flowchart illustrating a method for providing PPT log on information according to an embodiment of the present invention.

3 is an operation flowchart of a PTT server for providing PTT log-on information according to an embodiment of the present invention.

4 is an operation flowchart of a user terminal for providing PTT log-on information according to an embodiment of the present invention.

The present invention relates to a push-to-talk (PTT) system, and more particularly, to a system and method for providing log on / off information of respective terminals in a PTT system.

Mobile communication systems have been developed for transmitting and receiving voice data, but have recently been developed to enable various packet data transmission and reception as well as voice data. That is, the mobile communication service subscriber can receive multimedia data using the wireless Internet in addition to a telephone call with a remote party located at a remote location. In addition, the development of the mobile communication system has developed from the conventional concept of using a communication service in a 1: 1 relationship to using a communication service in a 1: n relationship. A service using this concept may be a Push-To-Talk service.

The PTT service allows any subscriber to use voice data transmission / reception services simultaneously with subscribers in a specific group. That is, the PPT service enables not only personal communication (one-to-one call) but also group communication (one-to-many call) to enable smooth multi-party calls. Depending on the call function, it can be used for useful purposes such as conferences. In this PTT service, individual users or groups to call are addressed with a URL, and SIP (Session Initiation Protocol) and RTP (Real Time Protocol) are used for streaming communication of signals and voice data.

In addition, PTT communication is a half-duplex one-way communication. Therefore, there is a PTT dedicated button (dedicated PTT key) on the body of the mobile phone, such as a radio, the user sends a voice to the other terminal while pressing the button. One or more counterpart terminals then receive their voice using a dedicated PTT broadcast channel. In this case, the user may register the PTT users, that is, the counterpart terminals in the phone book, and transmit the voice to the counterpart terminals easily with a single button input.

PTT users are managed by the PTT server and must be logged on to the PTT server to make a PTT call. The other party you want to talk to must also be logged on to the PTT server.

However, due to the limitation of the mobile phone using the PTT packet network, the user terminal cannot log on like the messenger used in the PC. Therefore, you cannot easily know the other party's log on status in real time. The user terminal has a separate PTT user group menu on the phone book, so that the user can be informed of the user's log on status by displaying a log on / off icon next to a registered user list. The icon is not refreshed until you request information about it.

Accordingly, the user must be logged on to make a PTT call to the other party, so it is inconvenient to check whether the other party is logged on or not. In addition, when the other party is logged off due to a sudden abnormality during the PTT call, it is inconvenient to log on to the PTT server again to know whether the user is logged back on again.

Accordingly, an object of the present invention is to provide a system and method for providing PTT log-on information for providing log on / off information of respective terminals in a PTT system in real time.

Another object of the present invention is to provide a PTT log-on information providing system and method for providing log-on information of counterpart terminals registered in a phone book of a user terminal in real time even when the user terminal is not logged on to the PTT server.

In accordance with the above object, the present invention provides a PTT log-on information providing system, monitoring the log on / off state of the specific counterpart terminal in accordance with the request for the log on information for the specific counterpart terminal, the real-time log of the specific counterpart terminal PTT server that provides the on information in a manner irrelevant to whether or not to connect with the self, and requests log-on information for the specific counterpart terminals to the PTT server according to a user's request, and from the PTT server for specific counterpart terminals A mobile terminal receives and updates log-on information.

In addition, the present invention provides a method for providing PTT log-on information, the mobile terminal requesting the log on information for a specific counterpart terminal to the PTT server, and the PTT server monitors the log on / off state for the specific counterpart terminal And providing real-time log-on information of the specific counterpart terminal to the mobile terminal in a manner irrelevant to whether or not it is connected to the mobile station, and updating the logon information of the specific counterpart terminal to inform the user. Is done.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that the same components in the drawings are represented by the same reference numerals and symbols as much as possible even if shown in different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a block diagram of a system for providing PTT log-on information according to an exemplary embodiment of the present invention. Referring to FIG. 1, the PTT log-on information providing system includes a plurality of mobile terminals 11, 13, and 15, a mobile communication network 20, a packet switch network 30, and a PTT server 40. It is configured to include.

First, the mobile communication network 20 is a path connecting the plurality of mobile terminals 11, 13, and 15 to the PTT server 40 by interworking with the packet switch network 30. Access network according to third generation mobile communication systems such as 2000, Wideband Code Division Multiple Access / Universal Mobile Telecommunications System (WCDMA / UMTS), General Packet Radio System (GPRS) and CDMA 2000 1xEV-DV (Evolution Data and Voice) This can be

The PTT server 40 performs multimedia session control based on Real Time Transfer Protocol (RTP) and Session Initiation Protocol (SIP), and PTT between logged on mobile terminals among a plurality of mobile terminals. Allow a PTT session to be established for communication.

According to an embodiment of the present invention, if the PTT server 40 as described above has a log-on notification service request for specific counterpart terminals from each of a plurality of mobile terminals 11, 13, and 15, log-on of specific counterpart terminals is performed. It monitors the / off state to provide the log on information for the other terminal. In this case, the PTT server 40 provides log on information on specific counterpart terminals in a manner such as a WAP Push, which is irrelevant to whether or not the PTT server 40 is connected.

 Each of the plurality of mobile terminals 11, 13, and 15 may access the PTT server 40 through the mobile communication network 20 and the packet switch network 30 according to a user's request. A mutual PTT call link is formed between each other to enable simultaneous multiparty voice call. Each of the plurality of mobile terminals 11, 13, and 15 requests a log-on notification service for specific counterpart terminals from the PTT server 40 according to a user's request. Regardless of whether the PTT server 40 is connected or not, the log-on information of the counterpart terminals of the phonebook is updated by receiving log-on information of the specific counterpart terminals from the PTT server 40. In this case, the specific counterpart terminals may be terminals of a user registered in the phonebook of each of the plurality of mobile terminals 11, 13, and 15.

Accordingly, the PPT log-on information providing system as described above may be provided with a log on / off state for the counterpart terminals requested by each of the plurality of mobile terminals without accessing the PTT server 40.

Hereinafter, a method of providing PPT log-on information of the PPT system as described above will be described. In the following description, the first mobile terminal 11 of the plurality of mobile terminals 11, 13, and 15 is designated as a user terminal, and the remaining second and third mobile terminals 13 and 15 are designated as the user terminal 11. It is assumed that the other terminals registered in the phone book of the.

2 is a flowchart illustrating a method of providing PPT log on information according to an embodiment of the present invention. 2, in operation 202, the user terminal 11 requests a log on notification service for a specific counterpart terminal 13.

When the log on notification service for the specific counterpart terminal 13 is requested, the PTT server 40 monitors the log on state for the specific counterpart terminal 13 in step 204. When the counterpart terminal 13 logs on in step 206, the PTT server 40 logs on the counterpart terminal 13 in a swap push method regardless of whether the user terminal 11 accesses the PTT server 40 in step 208. Inform.

Then, the user terminal 11 updates the log on information of the specific counterpart terminal 13 in step 210 to notify the user. Therefore, the user can know the log on information of a specific counterpart in real time.

Hereinafter, the operation of the PTT server 40 for providing the PPT log-on information as described above in more detail.

3 is an operation flowchart of the PTT server 40 according to an embodiment of the present invention. Referring to FIG. 3, the PTT server 40 receives a log on notification service request for a specific counterpart terminal from the user terminal 11 in step 302. In this case, the specific counterpart terminal may be a terminal of one or more specific users among the users registered in the phonebook of the user terminal 11.

As described above, when the log-on notification service is requested for the specific counterpart terminal, the PTT server 40 registers the specific counterpart terminal as the PTT log-on status notification target terminal in step 304. In operation 306, the PTT server 40 monitors log on / off states of the counterpart terminals.

As a result of the log on state monitoring, the PTT server 40 determines whether there is a change in the log on / off state of each counterpart terminal in step 206. If there is no change in the log on state of each counterpart terminal, the PTT server 40 continues the monitoring process of step 204 until there is a change in the log on / off state.

However, if there is a change in the log on / off state of each counterpart terminal, the PTT server 40 provides the user terminal 11 with the changed log on state information of each counterpart terminal in step 208. At this time, the log-on state information of each counterpart terminal should be used in a manner other than the PTT communication scheme so that the user terminal 11 can be provided even without access to the PTT server 40. Accordingly, the PTT server 40 according to an embodiment of the present invention provides the log-on information of each counterpart terminal to the user terminal 11 in a swap push method. Here, the swap push method is a method of automatically providing information desired by a user to the terminal from the PTT server 40.

Therefore, when the user terminal 11 requests the log on information on the counterpart terminals from the PTT server 40, the user terminal 11 may be provided with log on information on the counterpart terminals even without being connected to the PTT server 40. have.

4 is a flowchart illustrating an operation of a user terminal for providing PTT log on information according to an exemplary embodiment of the present invention. Referring to FIG. 4, in operation 402, the user terminal 11 requests a PTT log-on state information notification service for a specific counterpart terminal from the PTT server 40.

In operation 404, the user terminal 11 receives PTT log-on state information of the specific counterpart terminal from the PTT server 40.

In operation 406, the user terminal 11 refreshes a log on / off icon indicating a PTT log on state of a specific counterpart terminal of the phone book.

In the above description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be defined by the described embodiments, but should be determined by the equivalent of claims and claims.

As described above, the present invention has an effect of conveniently using the PTT system by receiving log-on state information of the counterpart in real time from the server in the PTT system.

In addition, the present invention has the effect of allowing the user of the PTT system to know whether a specific counterpart currently logs on to the PTT service without logging on to the PTT service.

Claims (6)

In the PTT log-on information providing system, PTT server that monitors the log on / off state of the specific counterpart terminals according to the request of log on information for specific counterpart terminals, and provides the real-time log on information of the specific counterpart terminals in a manner irrelevant to their connection with the other. Wow, And a mobile terminal for requesting log-on information on the specific counterpart terminals to the PTT server according to a user's request, and receiving and updating log-on information on specific counterpart terminals from the PTT server. The method of claim 1, The PTT server is characterized in that to provide the log on information of the specific counterpart terminal in a push push (WAP Push) method. The method of claim 1, And the specific counterpart terminals are terminals registered in a phone book of the mobile terminal. In the PTT log-on information providing method, Requesting, by the mobile terminal, log on information on a specific counterpart terminal to the PTT server;  Monitoring, by the PTT server, a log-on state of the specific counterpart terminal and providing real-time log-on information of the specific counterpart terminal to the mobile terminal in a manner irrespective of whether the PTT server is connected to the mobile station; And updating, by the mobile terminal, the log on information of the specific counterpart terminal to inform the user. The method of claim 4, wherein The PTT server provides log on information on the specific counterpart terminal to the mobile terminal in a WAP Push manner. The method of claim 4, wherein The specific counterpart terminals are terminals registered in the phone book of the mobile terminal.

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