Handling talk burst denials in group communication system supporting ptt service

The present invention relates to a Push-to-Talk (hereinafter referred to as PTT) service, and in particular, another PTT terminal requests a voice while a specific PTT terminal is allocated. If so, the present invention relates to a method of processing the voice right of the PTT service for the PTT server to reject the voice right request.

PTT is a half-duplex communication in which the right to speak is given to only one person like a radio service, and a one-to-one or one-to-many call service is provided. provide.

Generally, a PTT service system is composed of a PTT terminal equipped with a PTT key for requesting a voice right, and a PTT server that controls voice and data transmission and a voice right (Floor or Talk Burst) between the PTT terminals. To.

In the PTT service system configured in this way, when the user presses the key of the PTT terminal to request the right to speak, if the other PTT terminal is not given the right to speak, the PTT server sends the PTT terminal to the corresponding PTT terminal. Send a voice grant message (Floor Grant). However, if the right to speak is given to another PTT terminal in advance, the PTT server transmits a voice right refusal message (Floor Deny) to the corresponding PTT terminal.

When a user of another PTT terminal requests a voice while a specific PTT terminal has a voice, the PTT server speaks to the PTT terminal that requested the voice. This is a message notifying that the right cannot be granted. That is, in the conventional PTT service system, the PTT server transmits the voice right refusal message only to the PTT terminal that has transmitted the voice right request message.

Generally, in two-way communication, a speaker and a listener can be freely talked without being separated, but in half-duplex communication such as the PTT service, the distinction between a speaker and a listener is clear and the right to speak. Only the user who has is the speaker.

As described above, in the conventional PTT service, when a specific user has a voice, there is a problem that information on the status of other PTT terminals that do not have a voice cannot be known.

<p> An object of the present invention is that when a voice right refusal message is generated, all PTT terminals transmit the voice right refusal message to all PTT terminals for which a session is set, so that the information of the PTT terminal requesting the voice right is transmitted to all PTT terminals. The purpose is to provide a method for processing the right to speak of the PTT service that can be confirmed.</p>

<p> In order to achieve such an object, in the method of processing the voice right of the PTT service according to the present invention, a session is set in one or more PTT terminals through the PTT server, and the voice right is given to a specific PTT terminal. In the PTT service system, when another PTT terminal requests a voice right, the PTT server transmits a voice right refusal message to all PTT terminals for which a session is set.</p><p> In order to achieve such an object, in the method of processing the voice right of the PTT service according to the present invention, a session is set in one or more PTT terminals through the PTT server, and the voice right is given to a specific PTT terminal. In the PTT service system, the process in which the PTT server receives a voice request message from another PTT terminal, the process in which the PTT server transmits a voice denial message to all PTT terminals, and the process in which the voice denial message is received. Each PTT terminal is characterized in that it is composed of a process of outputting status information related to a voice request to a screen.</p><p> In order to achieve such an object, the method of processing the voice right of the PTT service according to the present invention includes a process in which the PTT terminal receives a voice right denial message from the PTT server and the PTT terminal includes the voice right denial message. It is characterized by consisting of a process of comparing the obtained ID with one's own ID and a process of displaying the state of the right to speak based on the comparison result on one's own screen.</p><p> In order to achieve such an object, the voice processing method of the PTT service according to the present invention is such that when a PTT terminal that does not transmit a voice request message receives a voice refusal message, the PTT terminal rejects the voice. It is characterized in that it is composed of a process of confirming a PTT terminal that has failed to acquire a voice right by an ID included in the message and a process of displaying information about the PTT terminal that has failed to acquire the voice right.</p><p> -(Item 1) In a PTT service system in which a session is set up on one or more PTT terminals through the PTT server and the right to speak is given to a specific PTT terminal. When another PTT terminal requests a voice right, the above-mentioned PTT server transmits a voice right refusal message to all PTT terminals for which a session is set, which is a method of processing the voice right of the PTT service. (Item 2) The above message of refusal to speak is Destination fields set to broadcast mode and The voice refusal field and The method for processing the right to speak of the PTT service according to item 1, which comprises the ID field of the PTT terminal that requested the right to speak. -(Item 3) In a PTT service system in which a session is set up on one or more PTT terminals through the PTT server and the right to speak is given to a specific PTT terminal. The process by which the above PTT server receives a voice request message from another PTT terminal, The process in which the PTT server transmits a voice refusal message including the ID of the PTT terminal that transmitted the voice request message to all PTT terminals, and The process in which each PTT terminal that receives the above speech right refusal message outputs the status information related to the speech right request to the screen. A method of processing the right to speak of a PTT service, which is characterized by being composed of. (Item 4) The above message of refusal to speak is Destination fields set to broadcast mode and The voice refusal field and The method for processing the right to speak of the PTT service according to item 3, which comprises the ID field of the PTT terminal that requested the right to speak. (Item 5) The process of outputting the above status information to the screen is The process by which the PTT terminal compares its own ID with the ID field of the above voice refusal message, The method for processing the right to speak of the PTT service according to item 3, which comprises a process of outputting a message notifying the above comparison result to the screen of the PTT terminal. (Item 6) The process of outputting the message notifying the above comparison result to the screen of the PTT terminal is If the above IDs are the same, the process of outputting a message notifying the failure of the right to speak, and If the above IDs are different, the right to speak of the PTT service according to item 5, which comprises the process of outputting a message notifying that the request for the right to speak of the PTT terminal corresponding to the above ID has been rejected. Processing method. (Item 7) The above message is The method for processing the right to speak of the PTT service according to item 6, wherein the text, image, or animation is displayed by at least one of them. (Item 8) The process by which the PTT terminal receives the voice refusal message from the PTT server, The process by which the PTT terminal compares the ID included in the voice refusal message with its own ID, The process of displaying the voice status based on the comparison result on your own screen A method of processing the right to speak of a PTT service, which is characterized by being composed of. (Item 9) The above message of refusal to speak is Destination fields set to broadcast mode and The voice refusal field and The method for processing the right to speak of the PTT service according to item 8, which includes the ID field of the PTT terminal that requested the right to speak. (Item 10) The process of displaying the voice status based on the above comparison results on your screen is When the ID of the PTT terminal and the ID of the voice right refusal message are the same, the process of outputting a message notifying the voice right request failure and the process When the ID of the PTT terminal and the ID of the voice right refusal message are different, the process is characterized by outputting a message notifying that the voice request of the PTT terminal corresponding to the ID is rejected. The method of processing the right to speak of the PTT service described in item 8. (Item 11) The above message is The method for processing the right to speak of the PTT service according to item 10, wherein the text, image, or animation is displayed by at least one of them. -(Item 12) When a PTT terminal that does not transmit a voice request message receives a voice refusal message, the PTT terminal confirms the PTT terminal that failed to acquire the voice by the ID included in the voice refusal message. The process and The process of displaying information about the PTT terminal that failed to acquire the right to speak A method of processing the right to speak of a PTT service, which is characterized by being composed of. (Item 13) For information on PTT terminals that failed to acquire the right to speak, The method for processing the right to speak of the PTT service according to item 12, wherein the text, image, or animation is displayed by at least one of them.</p><p> (Summary) An object of the present application is to provide a method for processing the voice right of the PTT service in the case where another PTT terminal requests the voice right while the voice right is given to a specific PTT terminal.</p><p> In the present application, the PTT server transmits a speech right refusal message including the ID of the PTT terminal that transmitted the speech right request message to all PTT terminals for which a session is set, and each PTT that receives the speech right refusal message. The terminal compares its own ID with the ID included in the voice right refusal message and outputs the comparison result, so that all users confirm the processing for the voice right request and the status information of the PTT terminal. be able to.</p>

<p> In the method for processing the voice right of the PTT service according to the present invention, when another user requests the voice right while the voice right is given to a specific user, the ID of the PTT terminal that transmits the voice right request message is used. By transmitting the including voice right refusal message to all PTT terminals for which the session is set, there is an effect that the state information of other users regarding the voice right request can be confirmed even in the call state.</p><p> Further, the voice processing method of the PTT service according to the present invention is only a process in which the PTT server transmits the same voice refusal message to all PTT terminals for which a session is set, and each PTT terminal is in a state related to the voice request. Since information can be output, there is no need for an additional function of the PTT server to manage and control the status information of each PTT terminal, and further, the function of the PTT server and the improved function can be realized without increasing the load. There is.</p>

Hereinafter, embodiments of the method for processing the right to speak of the PTT service according to the present invention will be described with reference to the drawings.

According to the present invention, when another PTT terminal requests a voice while a specific PTT terminal has a voice, the PTT server not only sends the voice request message, but also a session. By transmitting the voice right refusal message to all PTT terminals in which is set, all PTT terminals can confirm the processing for the voice right request and the status information of the PTT terminals.

Here, the voice right refusal message is set to the broadcasting mode in order to be transmitted to all PTT terminals in which the session is set, and includes the ID of the PTT terminal that has transmitted the voice right request message.

In the present invention, the PTT terminal that has received the voice right refusal message compares the ID included in the voice right refusal message with its own ID, and if the IDs are the same, a message notifying the failure of the voice right request. Is output, and if the IDs are different, the user is made aware of the voice request status by outputting a message notifying that the voice request of the PTT terminal corresponding to the ID has been rejected.

FIG. 1 is a signal flowchart showing a method of processing the right to speak of the PTT service according to the present invention, and shows the right to speak when another PTT terminal requests the right to speak while a specific PTT terminal has the right to speak. The processing method is shown.

First, it is assumed that a session between the first PTT terminal 21 and the second PTT terminal 22 is set through the PTT server 10, and the PTT server 10 is in an idle state (idle) in which no voice is given.

When the user of the second PTT terminal 22 presses the PTT key, the second PTT terminal 22 transmits a voice request message (Floor Request) to the PTT server 10 (S11).

Upon receiving the voice request message, the PTT server 10 converts the idle state to the operating state (taken), transmits the voice approval message to the second PTT terminal 22 (S12), and transmits the voice acquisition message to the first PTT terminal 21. Give the right to speak by transmitting (Floor Taken) (S13). Here, the voice acquisition right acquisition message is a message notifying the ID of the PTT terminal that has acquired the voice right, and is transmitted to all PTT terminals except the PTT terminal that has acquired the voice right.

When the user inputs voice data from the second PTT terminal 22, the voice data is transmitted to the first PTT terminal 21 through the PTT server 10 as an RTP (Real-time Transport Protocol) packet (S14).

When a voice request message is transmitted from the first PTT terminal 21 while the second PTT terminal 22 is given the right to speak (S15), the PTT server 10 is in a state where the right to speak is given to the second PTT terminal 22 in advance. Therefore, it is not possible to give a voice to the first PTT terminal 21. Therefore, the PTT server 10 transmits a voice refusal message to all PTT terminals for which a session is set, that is, the first PTT terminal 21 and the second PTT terminal 22 (S16). Here, the voice right refusal message includes the ID of the first PTT terminal 21 that has transmitted the voice right request message.

The first PTT terminal 21 and the second PTT terminal 22 that have received the voice right refusal message compare the ID of the first PTT terminal 21 included in the voice right refusal message with their own IDs, respectively. If the IDs are the same, the voice acquisition failure message is output to the screen of the corresponding PTT terminal, and if the IDs are different, a message notifying that the voice acquisition is refused and a voice request message are output. The transmitted PTT terminal ID is output to the screen of the corresponding PTT terminal.

When the second PTT terminal 22 releases the PTT key, the second PTT terminal 22 transmits a voice release request message (Floor Release) to the PTT server 10 (S17), and the PTT server 10 receives the voice release request message. Transmits a voice idle message (Floor idle) to all PTT terminals for which a session is set at the same time as the idle state, that is, the first PTT terminal 21 and the second PTT terminal 22 (S18).

FIG. 2 is a diagram showing the format of the voice right refusal message, in which the destination field in which the destination of the message is input, the voice right refusal field, and the ID of the PTT terminal that transmitted the voice right request message are input. Includes fields that have been created. Here, since the voice refusal message is transmitted to all PTT terminals for which a session is set, the destination field is set to the broadcast mode.

The voice right denial message of the present invention has a format in which the destination field is set to the broadcast mode and the ID field of the PTT terminal that transmits the voice right request message is added to the conventional voice right denial message.

The PTT terminal that has received the speech right refusal message compares the ID included in the speech right refusal message with its own ID, and the message differs depending on the comparison result so that the user can recognize the speech right refusal state. Is output to the screen of the corresponding PTT terminal.

FIG. 3 is an embodiment of a screen output to the PTT terminal that has received the speech right refusal message. If the first PTT terminal transmits a voice request message while the second PTT terminal acquires the right to speak and speaks, it is output to the screens of all PTT terminals in which the session is set as in the embodiment.

As shown in Fig. 3, not only the status of all PTT terminals for which sessions have been set is output using characters and icons using images and animation, but also the status of PTT terminals is displayed using only characters. Or you can use the predefined icons to display the status of your PTT terminal.

As described above, the present invention has been illustrated using the preferred embodiment of the present invention, but the present invention should not be construed as being limited to this embodiment. It is understood that the invention should be construed only by the claims. It will be understood by those skilled in the art that from the description of specific preferred embodiments of the present invention, an equivalent range can be implemented based on the description of the present invention and common general technical knowledge.

<figref num="1">It is a signal flowchart which shows the voice right processing method which concerns on this invention.</figref><figref num="2">It is a figure which shows the format of the voice right refusal message which concerns on this invention.</figref><figref num="3">It is a figure which shows the embodiment about the screen output of the PTT terminal which received the speech right refusal message.</figref>