JP2007060303A - VOICE DATA REPRODUCING SYSTEM IN PoC SERVICE, REPRODUCING METHOD, SERVER DEVICE, TERMINAL EQUIPMENT AND PROGRAM - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a voice data reproducing system or the like in a PoC service capable of preserving voice data spoken by a user in a server on a communication network and reproducing the preserved voice data corresponding to a request from the user in a telephone system utilizing the PoC service. <P>SOLUTION: In the voice data reproducing system in the PoC service provided with a server device for providing the PoC service between two units of terminal equipment, the server device is provided with a recording means for recording telephone conversation contents by attaching a session ID capable of identifying a telephone conversation session. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a voice data reproduction system, a reproduction method, a server device, a terminal device, and a program in a PoC service. In particular, in a telephone system using a PoC service, voice data spoken by a user is transmitted to a server on a communication network. The present invention relates to an audio data reproduction system, a reproduction method, a server device, a terminal device, and a program in a PoC service, which can be stored and reproduced in response to a request from a user.

  PoC (Push-to-talk over Cellular) is a communication means that enables not only one-to-one connection but also one-to-N connection between groups. In the PoC service, the mobile terminal can be used like a transceiver, and in order to start a conversation, it is possible to make a call by simply pressing the call button without dialing the telephone number of the called party. The user can make a call at the same time.

  In recent years, portable terminals equipped with a PoC function have begun to spread gradually (for example, see Patent Document 1).

  Patent Document 1 “Method and Apparatus for Participating in Group Communication Service in Existing Communication System” described above includes, as an example of a communication device used by a member of a group communication system, a wireless telephone and a cable having push-to-talk capability. These include telephones, satellite phones with push-to-talk functions, and wireless video cameras. Patent Document 1 discloses a method that enables audio data to be transmitted to and received from a group of wired or wireless communication devices using the Internet protocol.

Japanese translation of PCT publication No. 2003-526275 (pages 14-95, FIG. 1-16)

  As described above, in the PoC service, not only a one-to-one connection but also a one-to-N connection is used to talk to a plurality of users at the same time using a mobile terminal device or the like (talk session). A function that can be called).

  However, since PoC is a service for performing real-time communication, when communication between groups is attempted, a user who has not turned on the power of the mobile terminal device or a user who is out of the communication area participates in communication at that time. Users who cannot do so cannot participate in the talk session.

  Also, even if a caller tries to establish a talk session by using a PoC service to talk to a plurality of users, not all callees can participate in the talk session. . For example, if you are in a meeting, are on a train, or are driving a car, the called party cannot answer the call. I cannot join the session.

  Furthermore, a user who has once participated in a talk session may be forced to leave the talk session because the user himself / herself leaves the talk session or the radio wave condition of a mobile terminal device such as a mobile phone deteriorates. That is.

  Because the situation described above can occur, in the conventional PoC service, even if the caller wants to communicate important matters to all the callees, for users who do not participate in the talk session , You can not contact the contents immediately. In such a case, there is a problem in that it is necessary to use the PoC service again to reconnect to a user who could not participate or to use other means such as e-mail or telephone. is there.

  In addition, even after participating in a talk session, the callee may miss the contents spoken by the caller. If there is a one-to-one connection, if you miss the contents spoken by the caller, you can re-listen and confirm immediately, but in situations where multiple users are participating, you can re-listen. There are cases where it is not possible. As described above, when the callee misses the talk and cannot confirm it immediately, there is a problem that the contents spoken by the caller must be confirmed later using some means.

  In the conventional PoC service, there is no means for recording the content of a call. Therefore, a user who could not participate in the talk session or a user who could not participate in a part of the talk session acquires and confirms the content of the call, and a user who participates in the talk session confirms the content of the call later. There is a problem that it cannot be done.

  The present invention has been made in order to improve the above-described circumstances. Accordingly, an object of the present invention is to store voice data spoken by a user in a server on a communication network in a telephone system using a PoC service. And providing an audio data reproduction system, a reproduction method, a server device, a terminal device, and a program in a PoC service, which makes it possible to reproduce audio data stored in response to a request from a user. is there.

  An audio data reproduction system in a PoC service according to the present invention is an audio data reproduction system in a PoC service including a server device that provides a PoC service between terminal devices, and the server device can identify a call session. Recording means for recording the contents of a call with an ID is provided.

  In addition, the server device further includes generation means for generating the session ID when receiving an establishment request message for requesting establishment of a call session from the terminal device.

  Furthermore, the server device further includes a transmission unit that transmits the generated session ID to the terminal device that is the transmission source of the establishment request message, the terminal device described in the establishment request message, and the recording unit. It is characterized by that.

  In addition, the terminal device that has received the session ID generated by the server device includes storage means for storing the session ID in its own terminal device.

  Furthermore, when the server device receives a re-establishment request message for requesting re-establishment of the call session with the session ID from the terminal device, the server device further transmits the call content corresponding to the session ID from the recording unit. It is characterized by comprising reproducing means for reading and reproducing.

  Further, the reproduction means transmits the call content corresponding to the session ID to the terminal device that is the transmission source of the re-establishment request message and / or the terminal device described in the re-establishment request message. To do.

  Furthermore, the reproduction means transmits a second re-establishment request message requesting re-establishment of the call session with the session ID to the terminal device described in the re-establishment request message, and the second re-establishment request message is transmitted. As a response to the establishment request message, when a session establishment response message indicating participation in the call session with the session ID is received, a call session with the terminal device that is the transmission source of the session establishment response message is established. Confirming, and after the confirmation, a third re-establishment request message for requesting re-establishment of the call session with the session ID is transmitted to the recording means, and after the transmission of the third re-establishment request message The re-establishment request when the call content corresponding to the session ID transmitted from the recording means is received. Transmitting a vent story content to the transmission source terminal device of the transmission source terminal device and / or the session establishment response message message, characterized in that.

  An audio data reproduction method in a PoC service according to the present invention is an audio data reproduction method in a PoC service including a server device that provides a PoC service between terminal devices, and the server device can identify a call session. The contents of the call are recorded with an ID.

  Further, the server device further generates the session ID when receiving an establishment request message for requesting establishment of a call session from the terminal device.

  Furthermore, the server device further transmits the generated session ID to a terminal device that is a transmission source of the establishment request message and a terminal device described in the establishment request message.

  Further, the terminal device that has received the session ID generated by the server device stores the session ID in its own terminal device.

  Further, the server device further performs a process of reproducing the call content corresponding to the session ID when receiving a re-establishment request message requesting re-establishment of the call session with the session ID from the terminal device. It is characterized by performing.

  Further, in the process of reproducing the call content, the call content corresponding to the session ID is transmitted to the terminal device that is the transmission source of the re-establishment request message and / or the terminal device described in the re-establishment request message. It is characterized by that.

  Further, in the process of reproducing the call content, a second re-establishment request message for requesting re-establishment of the call session with the session ID is transmitted to the terminal device described in the re-establishment request message, As a response to the second re-establishment request message, when a session establishment response message indicating participation in the call session with the session ID is received, a call session with the terminal device that is the transmission source of the session establishment response message After the confirmation, the call content corresponding to the session ID is transmitted to the terminal device that is the transmission source of the re-establishment request message and / or the terminal device that is the transmission source of the session establishment response message. It transmits, It is characterized by the above-mentioned.

  The server device of the present invention is a server device that provides a PoC service between terminal devices, and the server device includes a recording unit that records a call content with a session ID that can identify a call session. It is characterized by that.

  In addition, the server device further includes generation means for generating the session ID when receiving an establishment request message for requesting establishment of a call session from the terminal device.

  Furthermore, the server device further includes a transmission unit that transmits the generated session ID to the terminal device that is the transmission source of the establishment request message, the terminal device described in the establishment request message, and the recording unit. It is characterized by that.

  In addition, when the server device receives a re-establishment request message for requesting re-establishment of the call session with the session ID from the terminal device, the server device stores the call content corresponding to the session ID from the recording unit. It is characterized by comprising reproducing means for reading and reproducing.

  Furthermore, the reproduction means transmits the call content corresponding to the session ID to the terminal device that is the transmission source of the re-establishment request message and / or the terminal device described in the re-establishment request message. To do.

  In addition, the reproduction means transmits a second re-establishment request message requesting re-establishment of the call session with the session ID to the terminal device described in the re-establishment request message, and the second re-establishment request message is transmitted. As a response to the establishment request message, when a session establishment response message indicating participation in the call session with the session ID is received, a call session with the terminal device that is the transmission source of the session establishment response message is established. Confirming and transmitting the content of the call corresponding to the session ID to the terminal device that is the transmission source of the re-establishment request message and / or the terminal device that is the transmission source of the session establishment response message after the confirmation. Features.

  A terminal device according to the present invention is a terminal device that receives a PoC service from a server device, and the terminal device includes a transmission unit that transmits an establishment request message for requesting establishment of a call session to the server device. It is characterized by that.

  The terminal device further includes storage means for storing a session ID capable of identifying the call session described in the response message in a storage device of the terminal device when a response message to the establishment request message is received. It is characterized by that.

  Furthermore, the terminal device further includes a re-transmission unit that transmits a re-establishment request message for requesting re-establishment of the call session with the session ID.

  In addition, the terminal device further includes a reproducing unit that reproduces a call content returned from the server device as a response to the re-establishment request message.

  The program of the present invention is characterized by causing a computer of a server device that provides a PoC service between terminal devices to execute a process of recording a call content with a session ID that can identify a call session.

  The program is further characterized by executing a process for generating the session ID when receiving an establishment request message for requesting establishment of a call session from the terminal device.

  The program further causes the generated session ID to be transmitted to the terminal device that is the transmission source of the establishment request message and the terminal device described in the establishment request message. .

  The program further executes a process of playing back the call content corresponding to the session ID when a re-establishment request message requesting re-establishment of the call session with the session ID is received from the terminal device. It is characterized by that.

  Further, in the process of reproducing the call content, the call content corresponding to the session ID is transmitted to the terminal device that is the transmission source of the re-establishment request message and / or the terminal device described in the re-establishment request message. A process is executed.

  Further, in the process of reproducing the call content, a second re-establishment request message for requesting re-establishment of the call session with the session ID is transmitted to the terminal device described in the re-establishment request message, As a response to the second re-establishment request message, when a session establishment response message indicating participation in the call session with the session ID is received, a call session with the terminal device that is the transmission source of the session establishment response message After the confirmation, the call content corresponding to the session ID is transmitted to the terminal device that is the transmission source of the re-establishment request message and / or the terminal device that is the transmission source of the session establishment response message. A process of transmitting is executed.

  Further, the present invention is characterized in that a computer of a terminal device receiving provision of PoC service from a server device executes processing for transmitting an establishment request message for requesting establishment of a call session to the server device.

  In addition, when the program further receives a response message to the establishment request message, the program causes the storage device of the terminal device to store a session ID that can identify the call session described in the response message. It is characterized by that.

  Further, the program is characterized by further executing a process of transmitting a re-establishment request message for requesting re-establishment of the call session with the session ID.

  Further, the program is further characterized by executing a process of reproducing the call contents returned from the server device as a response to the re-establishment request message.

  The voice data reproduction system in the PoC service of the present invention includes a server device that provides a PoC service between terminal devices, and the server device records a call content with a session ID that can identify the call session. Means.

  Therefore, even after the call session ends, by using the session ID, it is possible to reproduce the call contents stored in the recording means in the call session.

  Next, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram showing an embodiment of an audio data reproduction system in the PoC service of the present invention.

  The present embodiment shown in FIG. 1 includes a PoC server 20 that performs a Push-to-talk over Cellular (PoC) service, a PoC server group 30, and a data management server that stores / reproduces voice data transmitted and received in the PoC service. 40 are connected to each other via the network 10.

  The network 10 is configured to connect a plurality of portable terminal devices 1 (1-1 to 1-n) having a PoC function.

  The PoC service is realized by cooperation between the PoC server 20 and the PoC server group 30 and makes a call (referred to as a talk session) between the mobile terminal devices 1. The voice data transmitted / received between the portable terminal devices 1 is stored in the data management server 40. When there is a request from the user of the portable terminal device 1 later, the voice data is transmitted to the portable terminal device 1. And is to be played.

  The mobile terminal device 1 includes a mobile phone equipped with a PoC function, a PHS (Personal Handyphone System) terminal, a PDA (Personal Digital Assistance). Alternatively, it may be a PoC dedicated mobile terminal that implements the PoC function.

  The network 10 is a communication network such as the Internet including a mobile communication network. Here, the mobile communication network may be any of PDC (Personal Digital Cellular), CDMA2000 (Code Division Multiple Access 2000), or W-CDMA (Wideband CDMA). It may be.

  Next, the PoC server 20 and the PoC server group 30 shown in FIG. 1 will be described with reference to FIG.

  FIG. 2 is a detailed block diagram illustrating an example of a PoC server and a PoC server group.

  The PoC server 20 in FIG. 2 is an information processing apparatus including a CPU (Central Processing Unit) (not shown), and is configured to operate by a computer program stored in a storage device (not shown).

  The PoC server 20 includes a session control unit 21, a floor control unit 22, and a voice control unit 23.

  The session control unit 21 controls processing for establishing and disconnecting a talk session in the PoC service.

  The speaking right control unit 22 controls the processing of granting and releasing a speaking right that is a right to speak in the PoC service.

  The voice control unit 23 performs control to transmit voice data received from the user of the mobile terminal device 1 holding the right to speak to the mobile terminal devices 1 of other users participating in the talk session.

  The PoC server group 30 in FIG. 2 is a server group having the following functions necessary to support the PoC service.

  First, it has the function of a SIP (Session Initiation Protocol) session that establishes an IP (Internet Protocol) session used in PoC communication. In addition, it has a function of a presence server for managing information on the status of a user such as a portable terminal (free time, during a meeting, etc.). Furthermore, in order to support communication between groups of users of the PoC service, it has a function of GLMS (Group and List Management Server: group and list management server) for managing and managing group members.

  The main functions of the PoC server group 30 are as described above. However, in the present embodiment, since the server configuration may be any form, only the functional configuration is shown in FIG.

  Next, the data management server 40 shown in FIG. 1 will be described with reference to FIG.

  FIG. 3 is a detailed block diagram illustrating an example of the data management server.

  The data management server 40 in FIG. 3 is an information processing apparatus including a CPU (not shown), and is configured to operate according to a computer program stored in a storage device (not shown).

  The data management server 40 includes an audio data control unit 41 and an audio data storage DB (Data Base) 42. In addition, a session management unit 45 and a speaking right management unit 46 are provided.

  The voice data control unit 41 stores the voice data transmitted from the PoC server 20 in the voice data storage DB 42. Further, when a request for reproducing audio data is transmitted from the PoC server 20, the audio data stored in the audio data storage DB 42 is transmitted to the PoC server 20.

  The audio data storage DB 42 is a database that stores audio data transmitted and received in a talk session performed between the mobile terminal devices 1.

  As shown in FIG. 3, the audio data storage DB 42 includes a session ID 4211 field, a sequence number 4212 field, and an audio data 4213 field.

  The session ID 4211 is an ID (identification) for uniquely identifying the talk session, and is generated as a unique ID for identifying the talk session when the PoC server 20 establishes the talk session. is there.

  The sequence number 4212 is a number indicating the order of audio data in the session ID.

  The audio data 4213 is the audio data itself transmitted from the PoC server 20.

  As an example, in the record 4221 of the voice data storage DB 42, voice data “◯ Δ... □” having a session ID “session 1234” and a sequence number “1” is stored and saved. Further, the record 4222 stores the voice data “◯◯◯...” Having the same session ID “session 1234” as the above record and the sequence number “2”.

  In response to a request from the PoC server 20, the session management unit 45 performs establishment processing and disconnection processing for participation in the talk session of the own data management server 40. Specifically, when a message requesting participation in the talk session is received from the PoC server 20, the own data management server 40 generates a response message indicating that it will participate in the talk session, and returns it to the PoC server 20. It also manages the status of whether a talk session is being established.

  The speaking right management unit 46 requests the PoC server 20 to give a speaking right when the own data management server 40 attempts to acquire the right to speak.

  Note that the PoC server 20 and the data management server 40 described above may be configured as server devices in which both the server functions described above are implemented in the same information processing apparatus.

  Next, the mobile terminal device 1 shown in FIG. 1 will be described with reference to FIG.

  FIG. 4 is a detailed block diagram illustrating an example of a mobile terminal device.

  In FIG. 4, the mobile terminal device 1 includes an antenna 101 that transmits and receives radio waves, and a communication unit 102 that communicates with a mobile communication network via the antenna 101. Further, a control unit 103 that performs overall control of the mobile terminal device 1 and a storage unit 104 that is connected to the control unit 103 and can write / read necessary data are provided. Furthermore, a display unit 105 that displays data output from the control unit 103, a call unit 106 that drives the microphone 107 and the speaker 108, and an operation unit 109 that inputs data to the control unit 103 by button operation are provided. .

  The control unit 103 includes a CPU (not shown) and is configured to operate according to a computer program stored in the storage unit 104.

  And the control part 103 is provided with the PoC function part 110 for performing the telephone call by PoC service. The PoC function unit 110 includes an audio data control unit 111, a session management unit 115, and a floor control unit 116.

  When the voice data control unit 111 receives the voice data transmitted from the PoC server 20 via the communication unit 102, the voice data control unit 111 outputs the voice data to the speaker 108 via the call unit 106 to reproduce the voice data. In addition, the voice data input from the microphone 107 via the call unit 106 is transmitted to the PoC server 20 via the communication unit 102.

  In response to a request from the PoC server 20, the session management unit 115 performs establishment processing and disconnection processing for participation in the talk session of the mobile terminal device 1 itself. Specifically, when a message requesting participation in the talk session is received from the PoC server 20 via the communication unit 102, a response message that the mobile terminal device 1 participates or does not participate in the talk session is generated. Then, it is returned to the PoC server 20. Further, when data input indicating that a talk session is to be established is performed by operating the button of the operation unit 109, a message requesting establishment of the talk session is generated and transmitted to the PoC server 20 via the communication unit 102. . It also manages the status of whether a talk session is being established.

  When the voice button (not shown) of the operation unit 109 is pressed to input data indicating that the right to speak is to be acquired, the floor control unit 116 generates a message requesting the right to speak, and the communication unit 102 To the PoC server 20 via

  Next, the operation of the present embodiment will be described with reference to the sequence charts shown in FIGS.

  FIG. 5 is a talk session establishment process in the PoC service, FIG. 6 is a floor acquisition process, FIG. 7 is a sequence chart showing a voice data transmission / reception process, and the processes shown in FIGS. Thus, the voice data transmitted / received in the talk session is stored in the data management server 40.

  FIG. 8 is a sequence chart showing the reproduction processing of the audio data stored in the data management server 40, and includes all of the talk session establishment processing, speaking right acquisition processing, and audio data transmission / reception processing. .

  First, with reference to FIG. 5, the procedure of the talk session establishment process will be described.

  In FIG. 5, it is assumed that user A, user B, and user C are users using mobile terminal apparatuses 1-1, 1-2, and 1-3, respectively.

  User A is a caller and requests user B and user C to establish a talk session in the PoC service. In response to this request, user B returns a non-participation response and user C returns a participation response.

  When the user A who is a caller uses the portable terminal device 1-1 to select the connection destination users B and C and starts an operation to establish a talk session (step S11 in FIG. 5). Then, a session establishment request (new establishment) message requesting establishment of a talk session is transmitted from the portable terminal device 1-1 to the PoC server 20 (step S12). The message format is illustrated in FIG. In FIG. 9A, “session establishment request (new establishment)” is described in the message type 301, and the connection destinations “user B, user C” selected by the user A are described in the connection destination information 302. Yes.

  Note that the session establishment request message is also used when audio data reproduction processing is performed, as will be described later with reference to FIG. Therefore, in order to distinguish from the message in that case, the session establishment request message in FIG. 5 is described as a session establishment request (new establishment).

  When the PoC server 20 receives the session establishment request (new establishment) in step S12, the PoC server 20 generates a session ID for uniquely identifying the talk session (step S12-1).

  Then, the PoC server 20 communicates with the data management server 40, the mobile terminal device 1-2 of the user B (described in the connection destination information 302 in FIG. 9A), and the mobile terminal device 1-3 of the user C. In contrast, a session establishment request (new establishment) message including the generated session ID is transmitted (step S13, step S14, step S15). The message format is illustrated in FIG. In FIG. 9B, the message type 301 describes “session establishment request (new establishment), session ID”, which is a message including the generated session ID.

  When the data management server 40 receives the session establishment request (new establishment) including the session ID in step S13, the data management server 40 stores and saves the session ID in the storage device included in the data management server 40 (step S13-1). . Then, the state of the own data management server 40 is set to the state of participating in the talk session with the session ID (the talk session is being established), and a session establishment response message is returned to the PoC server 20 (step S16). The message format is illustrated in FIG.

  When the mobile terminal device 1-2 of the user B receives the session establishment request (new establishment) including the session ID in step S14, the session ID is stored in the storage unit 104 in the own mobile terminal device 1-2. It stores and saves it as information (step S14-1). Here, since it is assumed that the user B does not participate in the talk session, the state of the mobile terminal device 1-2 is not participating in the talk session assigned with the session ID (the talk session is not Established). Then, a session establishment response (rejection) message notifying participation in the talk session is returned to the PoC server 20 (step S17). The message format is illustrated in FIG.

  When the mobile terminal device 1-3 of the user C receives the session establishment request (new establishment) including the session ID in step S15, the session ID is stored in the storage unit 104 in the own mobile terminal device 1-3. It memorize | stores and preserve | saves as information (step S15-1). Here, since it is assumed that the user C participates in the talk session, the state of the mobile terminal device 1-3 is participating in the talk session to which the session ID is attached (the talk session is being established). State. Then, a session establishment response (participation) message to participate in the talk session is returned to the PoC server 20 (step S18). The message format is illustrated in FIG.

  When the PoC server 20 receives a session establishment response (participation) that is a normal response from the user C of the callee (step S18), the PoC server 20 establishes a session with the mobile terminal device 1-1 of the user A who is the caller. A response message is transmitted (step S19). The message format is illustrated in FIG.

  When the mobile terminal device 1-1 of the user A receives the session establishment response in step S19, the session ID of the talk session is stored and saved as redial information in the storage unit 104 in the mobile terminal device 1-1. (Step S19-1). At this time, the talk session is established between the user A and the user C, and at the same time, the talk session is established with the data management server 40.

  Next, with reference to FIG. 6, the procedure for the right acquisition process will be described.

  In FIG. 6, the user X is assumed to be a calling user who acquires the right to speak and transmits voice data, and is referred to as being in the right to speak state. Further, the user Y is assumed to be an incoming user who receives voice data from another user who has acquired the right to speak, and is referred to as being in a state where the right to speak is acquired.

  A talk session is established between the user A and the user C described in FIG. Then, any of the users A and C can speak as a calling user if the user has the right to speak. Therefore, both the user A and the user C can be the user X or the user Y. In the following description, for convenience, it is assumed that the user X is using the mobile terminal device 1-1 and the user Y is using the mobile terminal device 1-3.

  When the user X uses the mobile terminal device 1-1 to start an operation for acquiring the right to speak (step S21 in FIG. 6), the mobile terminal device 1-1 grants the floor to the PoC server 20. A message for requesting the right to speak is transmitted (step S22).

  When the PoC server 20 grants the right to speak to the user X, the PoC server 20 returns a message for acquiring the right to speak to the mobile terminal device 1-1 of the user X (step S23). At the same time, a message for acquiring the right to speak is transmitted to the data management server 40 and the mobile terminal device 1-3 of the user Y to notify that the user X has acquired the right to speak (steps S24 and S25).

  The mobile terminal device 1-1 of the user X that has received the floor acquisition response in step S23 transitions to the floor acquisition state (step S23-1), and transitions to a state in which voice data can be transmitted.

  When the data management server 40 receives the floor acquisition report in step S24, the data management server 40 transitions to the floor acquisition state (step S24-1), receives the audio data from the user X who acquired the floor, and the audio data Transitions to a state where it can be stored in the voice data storage DB 42.

  When the mobile terminal device 1-3 of the user Y receives the floor acquisition report in step S25, the mobile terminal apparatus 1-3 transitions to the floor acquisition state (step S25-1) and receives the voice data from the user X who acquired the floor. Transition to a reproducible state.

  Next, with reference to FIG. 7, the procedure of audio data transmission / reception processing will be described.

In FIG. 7, it is assumed that the user X (mobile terminal device 1-1) is in the right to speak state, and the data management server 40 and the user Y (mobile terminal device 1-3) are in the right to speak state.
This state is the state as described in FIG.

  When the user X who has acquired the right to speak and transitioned to the right to acquire the right to speak uses the mobile terminal device 1-1 to input voice data, starting a conversation (step S31), the user X from the mobile terminal device 1-1. The voice data is transmitted to the PoC server 20 (step S32).

  When the PoC server 20 receives the voice data (step S32) from the mobile terminal device 1-1 of the user X who has acquired the right to speak, the PoC server 20 respectively sends the data management server 40 and the mobile terminal device 1-3 of the user Y to the voice management data. The audio data is transmitted (step S33, step S34).

  When the data management server 40 receives the voice data in step S33, the data management server 40 stores and saves the voice data in the voice data storage DB 42 of the own data management server 40 (step S33-1). In storing the audio data, the session ID of the current talk session is added and stored. The session ID is stored in step S13-1 of FIG.

  Upon receipt of the voice data in step S34, the portable terminal device 1-3 of the user Y outputs the voice data to the call unit 106 of the own portable terminal device 1-3, thereby causing the speaker 108 to reproduce (step S34- 1).

  Next, with reference to FIG. 8, the procedure of the reproduction process of the audio data stored in the data management server 40 will be described.

  In FIG. 8, it is assumed that the user B described in FIG. 5 performs a procedure for reproducing audio data stored in the data management server 40.

  Since user B has not participated in the talk session as described with reference to FIG. 5, the voice data from user X who has acquired the right to speak as described with reference to FIG. 7 is not transmitted. Therefore, the user is not listening to the content of the conversation made in the talk session. However, the session ID of the talk session is stored and stored in the mobile terminal device 1-2.

  In FIG. 8, when a user B who desires to reproduce audio data starts an operation to establish a talk session for reproducing audio data using the mobile terminal device 1-2 (FIG. 8). 8, a session establishment request (reproduction) message requesting establishment of a talk session is transmitted from the mobile terminal device 1-2 to the PoC server 20 (step S42). The message format is illustrated in FIG. In FIG. 9G, “Session establishment request (reproduction), session ID” is described in the message type 301, and “NULL” indicating that the number of connection destination users is “0” in the connection destination information 302. "(Blank) code is written.

  Note that the session establishment request message here is described as a session establishment request (reproduction) in order to distinguish it from the session establishment request (new establishment) described in FIG. In addition, a session ID is attached to the session establishment request (reproduction) here. The session ID is stored and saved in the mobile terminal device 1-2 of the user B in step S14-1 in FIG.

  When the PoC server 20 receives the session establishment request (reproduction) in step S42, the connection destination information 302 in the message of the session establishment request (reproduction) is “NULL” code. No action is performed on C). However, a session establishment request (reproduction) message is transmitted to the data management server 40 (step S43). The message format is illustrated in FIG.

  When the data management server 40 receives the session establishment request (reproduction) in step S43, the data management server 40 determines whether the audio data corresponding to the session ID added to the session establishment request (reproduction) is stored in the audio data storage DB 42. investigate. If the audio data corresponding to the session ID is stored in the audio data storage DB 42, a session establishment response message is returned as a normal response to the PoC server 20 (step S44).

  The PoC server 20 transmits a session establishment response message to the mobile terminal device 1-2 of the user B who is the session establishment request source (step S45). At this point, a talk session for reproducing audio data is established between the mobile terminal device 1-2 and the data management server 40.

  The data management server 40 that has returned the session establishment response message in step S44 then transmits a message-right acquisition request message to the PoC server 20 in order to acquire the right to speak (step S46). In the data management server 40, when a talk session for reproducing audio data is established, the data management server 40 operates so as to automatically acquire the right to speak and transmit the audio data.

  When the PoC server 20 receives the request for acquisition of the right to speak in step S46, the PoC server 20 returns a message for acquiring the right to speak to the data management server 40 (step S47). Also, a message acquisition report message is transmitted to the mobile terminal device 1-2 of the user B (step S48).

  When the data management server 40 receives the floor acquisition response in step S47, the data management server 40 starts to reproduce the audio data stored in the audio data storage DB 42 of the own data management server 40. That is, the audio data corresponding to the session ID is sequentially read from the audio data storage DB 42, and the read audio data is transmitted to the PoC server 20 (step S49).

  The PoC server 20 transmits the audio data received in step S49 to the mobile terminal device 1-2 of the user B (step S50).

  Upon receiving the audio data in step S50, the mobile terminal device 1-2 of the user B outputs the audio data to the calling unit 106 of the own mobile terminal device 1-2, thereby reproducing it through the speaker 108 (step S50- 1). By performing the above operation, the user B can check the voice data stored in the data management server 40.

  As described above, in the present embodiment, at the start of a talk session, a unique session ID that can identify the talk session is generated. The conversation content in the talk session is stored in the data management server as voice data with the session ID.

  Therefore, even after the end of the talk session, the voice data stored in the data management server can be reproduced by using the session ID.

  As an example, even if you refuse to participate in the request to establish a talk session, or even if you leave after joining the talk session, specify the session ID generated when establishing the talk session, The user can establish a talk session for audio data reproduction by himself / herself. As a result, the content of the conversation in the talk session can be reproduced and the content of the conversation can be confirmed.

  Therefore, even if the user is unable to participate in the PoC service, it is possible to confirm the content of the conversation during the talk session using the PoC service at a time convenient for the user later.

  Next, a second operation example of this embodiment will be described with reference to FIG.

  In the second operation example of the present embodiment, the content of the conversation in the previous talk session is given to a user who has participated in the talk session, a user who has not joined the talk session, a user who has left the talk session, or the like. The processing procedure for letting you know will be explained.

  FIG. 10 is a second sequence chart showing the reproduction process of the audio data stored in the data management server 40.

  In FIG. 10, a processing procedure when the user A who has participated in the talk session in FIG. 5 causes the user B who does not participate in the talk session to confirm the conversation contents in the talk session will be described.

  As described with reference to FIG. 5, the user A participates in the talk session, and stores and saves the session ID of the talk session as redial information in the storage unit 104 of the portable terminal device 1-1. (Step S19-1 in FIG. 5).

  In FIG. 10, a user A who desires to reproduce audio data uses the portable terminal device 1-1 to start an operation to establish a talk session for reproducing audio data (FIG. 10). 10 step S51). At this time, the user A designates the user B who does not participate in the previous talk session, and uses the session ID in the previous talk session. Then, a session establishment request (reproduction) message requesting establishment of a talk session is transmitted from the portable terminal device 1-1 to the PoC server 20 (step S52). The message format is illustrated in FIG. In FIG. 11A, “session establishment request (reproduction), session ID” is described in the message type 301, and “user B” not participating in the previous talk session is described in the connection destination information 302. .

  When the PoC server 20 receives the session establishment request (reproduction) in step S52, the PoC server 20 first transmits a session establishment request (reproduction) message to the mobile terminal device 1-2 of the user B (step S53). The message format is illustrated in FIG.

  When the mobile terminal device 1-2 of the user B receives the session establishment request (reproduction) in step S53, the session ID described in the message of the session establishment request (reproduction) is stored in the storage unit of the own portable terminal device 1-2. It memorize | stores in 104 and preserve | saves (step S53-1). If it is possible to participate in the talk session, a session establishment response (participation) message indicating participation is returned to the PoC server 20 (step S54).

  Upon receiving the session establishment response (participation) in step S54, the PoC server 20 transmits a session establishment response to the mobile terminal device 1-1 of user A (step S55).

  Next, the PoC server 20 transmits a session establishment request (reproduction) message to the data management server 40 (step S56).

  Upon receipt of the session establishment request (reproduction) in step S56, the data management server 40 returns a session establishment response message to the PoC server 20 (step S57).

  As described above, the PoC server 20 first establishes a talk session with the data management server 40 after establishing a talk session with the user B who is an incoming user. This is based on the premise that in the PoC service, the timing at which the incoming user returns the session establishment response message depends on the operation of the incoming user, and therefore is unknown. If a talk session with the data management server 40 is established before the talk session with the called user is established, the voice data is transmitted from the data management server 40, and the called user cannot receive the voice data. In order to prevent such a situation, the talk session with the data management server 40 is established after the talk session with the incoming user is established first.

  After returning the session establishment response message in step S57, the data management server 40 transmits a message acquisition request message to the PoC server 20 in order to acquire the request (step S58).

  When the PoC server 20 receives the floor acquisition request in step S58, the PoC server 20 transmits a floor acquisition response message to the data management server 40 when the floor is granted to the data management server 40 (step S59).

  Then, the PoC server 20 transmits a message acquisition report message to each of the mobile terminal device 1-1 of the user A and the mobile terminal device 1-2 of the user B (step S60, step S61).

  The data management server 40 that has received the floor acquisition response in step S59 transmits to the PoC server 20 the voice data with the session ID stored in the voice data storage DB 42 of the own data management server 40 ( Step S62).

  When the PoC server 20 receives the audio data in step S62, the PoC server 20 transmits the audio data to each of the mobile terminal device 1-1 of the user A and the mobile terminal device 1-2 of the user B (step S63, step S64). ).

  When the mobile terminal device 1-1 of the user A receives the voice data in step S63, the voice data is output to the calling unit 106 of the mobile terminal device 1-1 so that it is reproduced by the speaker 108 (step S63-). 1).

  When the mobile terminal device 1-2 of the user B receives the audio data in step S64, the audio data is output to the calling unit 106 of the self mobile terminal device 1-2 to be played back on the speaker 108 (step S64-). 1).

  As described above, according to the second operation example of the present embodiment, a user who participates in a talk session can receive audio data stored in the data management server from any arbitrary user. It will be possible to play and listen at the time.

  As an example, even for a user who has not been able to participate in a talk session for some reason or who has left during the talk session, the content of the conversation in the talk session can be confirmed. In addition, even for a user who was not initially a member of the talk session, by specifying the user as a connection destination and executing a session establishment request (playback), the user can also have conversation contents in the talk session. Can be heard.

  Next, a second embodiment of the present invention will be described with reference to FIG.

  FIG. 12 is a block diagram showing a second embodiment of the audio data reproducing system in the PoC service of the present invention.

  FIG. 12 differs from the embodiment shown in FIG. 1 only in that a plurality of fixed telephones 2 (2-1 to 2-m) mounted with a PoC function are added. Therefore, in FIG. 12, the same reference numerals or symbols are assigned to components corresponding to those shown in FIG. 1, and the description thereof is omitted.

  In the second embodiment shown in FIG. 12, a PoC server 20 that performs a PoC service, a PoC server group 30, and a data management server 40 that stores / reproduces voice data transmitted and received in the PoC service are connected via a network 10. Connected to each other.

  In addition, a plurality of portable terminal devices 1 (1-1 to 1-n) having a PoC function and a plurality of fixed telephones 2 (2-1 to 2-m) having a PoC function are connected to the network 10. It becomes the composition which is done.

  The PoC service is realized by the cooperation of the PoC server 20 and the PoC server group 30 and makes a call between the mobile terminal device 1 and / or the fixed telephone 2. And the voice data transmitted / received between the portable terminal device 1 and / or the fixed telephone 2 is stored in the data management server 40, and when there is a request from the user of the portable terminal apparatus 1 or the fixed telephone 2 later, The audio data is transmitted to the mobile terminal device 1 and / or the fixed telephone 2 and is played back.

  The fixed telephone 2 is a fixed telephone used in homes or offices, which is equipped with a PoC function.

  The network 10 is a communication network such as the Internet including a mobile communication network and a fixed telephone network.

  Next, the fixed telephone 2 will be described.

  The fixed telephone 2 shown in the second embodiment only needs to be reconfigured as follows in the mobile terminal device 1 shown in FIG. In other words, the antenna 101 and the communication unit 102 in FIG. 4 are replaced with a communication unit that performs communication with the fixed telephone network.

  In the second embodiment, the apparatus configuration other than the fixed telephone 2 and the operation sequence of the voice data reproduction system in the PoC service are the same as those described in the first embodiment.

  Therefore, further description of the second embodiment will be omitted.

  As described above, according to the second embodiment of the present invention, even a user who uses a landline phone that implements the PoC function can enjoy the same effects as in the first embodiment. It becomes.

  As described above, in the present invention, at the start of a talk session, a unique session ID that can identify the talk session is generated. The conversation content in the talk session is stored in the data management server as voice data with the session ID.

  Therefore, even after the end of the talk session, the voice data stored in the data management server can be reproduced by using the session ID.

  Further, the session ID for identifying the talk session is stored in the mobile terminal device or the fixed telephone used by the user regardless of participation / nonparticipation in the talk session.

  Therefore, regardless of participation / nonparticipation / participation in the talk session, it is possible to start the reproduction operation of the audio data stored in the data management server by using the session ID. As a result, even after the end of the talk session, the content of the conversation in the talk session can be reproduced at any time, and the content of the conversation can be confirmed.

It is a block diagram which shows one Embodiment of the audio | voice data reproduction | regeneration system in the PoC service of this invention. It is a detailed block diagram which shows an example of the PoC server and the server group for PoC. It is a detailed block diagram which shows an example of a data management server. It is a detailed block diagram which shows an example of a portable terminal device. It is a sequence chart which shows the establishment process of the talk session in PoC service. It is a sequence chart which shows the acquisition process of the floor. It is a sequence chart which shows the transmission / reception process of audio | voice data. It is a sequence chart which shows the reproduction | regeneration processing of audio | voice data. It is a figure which illustrates a message format. It is a 2nd sequence chart which shows the reproduction | regeneration processing of audio | voice data. It is the 2nd figure which illustrates a message format. It is a block diagram which shows 2nd Embodiment of the audio | voice data reproduction | regeneration system in the PoC service of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mobile terminal device 101 Antenna 102 Communication part 103 Control part 104 Storage part 105 Display part 106 Call part 107 Microphone 108 Speaker 109 Operation part 2 Fixed telephone 10 Network 20 PoC server 21 Session control part 22 Speaking right control part 23 Voice control part 30 PoC server group 40 Data management server 41 Voice data control unit 42 Voice data storage DB
45 Session Management Department 46 Speaking Rights Management Department

Claims (34)

  A voice data reproduction system in a PoC service including a server device that provides a PoC service between terminal devices, wherein the server device records a call content with a session ID that can identify the call session. An audio data reproduction system in a PoC service characterized by comprising:   2. The PoC according to claim 1, wherein the server device further includes a generation unit configured to generate the session ID when receiving an establishment request message for requesting establishment of a call session from the terminal device. Audio data playback system for services.   The server device further includes a transmission unit that transmits the generated session ID to the terminal device that is the transmission source of the establishment request message, the terminal device described in the establishment request message, and the recording unit. The voice data reproduction system in the PoC service according to claim 2, wherein   4. The voice data reproduction in the PoC service according to claim 3, wherein the terminal device that has received the session ID generated by the server device includes storage means for storing the session ID in the terminal device. system.   When the server device further receives a re-establishment request message requesting re-establishment of the call session with the session ID from the terminal device, the server device reads the call content corresponding to the session ID from the recording unit. 5. The audio data reproducing system in the PoC service according to claim 4, further comprising reproducing means for reproducing.   The reproduction means transmits the call contents corresponding to the session ID to a terminal device that is a transmission source of the re-establishment request message and / or a terminal device described in the re-establishment request message. Item 6. A sound data reproduction system in the PoC service according to Item 5.   The reproduction means transmits a second re-establishment request message for requesting re-establishment of the call session with the session ID to the terminal device described in the re-establishment request message. As a response to the message, when receiving a session establishment response message indicating participation in the call session with the session ID, it is confirmed that a call session has been established with the terminal device that is the transmission source of the session establishment response message. After the confirmation, a third re-establishment request message for requesting re-establishment of the call session with the session ID is transmitted to the recording means, and after the third re-establishment request message is transmitted, When the call content corresponding to the session ID transmitted from the recording means is received, the re-establishment request message Audio data reproduction system in PoC service according to claim 5 for transmitting vent story content, characterized in that the transmission source of the terminal device and / or source terminals of the session establishment response message.   A method for reproducing voice data in a PoC service including a server device that provides a PoC service between terminal devices, the server device recording a call content with a session ID that can identify the call session. An audio data reproducing method in a PoC service characterized by the above.   9. The voice data in the PoC service according to claim 8, wherein the server device further generates the session ID when receiving an establishment request message for requesting establishment of a call session from the terminal device. Playback method.   The server device further transmits the generated session ID to the terminal device that is the transmission source of the establishment request message and the terminal device described in the establishment request message. Audio data playback method in PoC service.   The method according to claim 10, wherein the terminal device that has received the session ID generated by the server device stores the session ID in the terminal device.   The server device further performs a process of reproducing the call content corresponding to the session ID when receiving a re-establishment request message requesting re-establishment of the call session with the session ID from the terminal device. 12. The method of reproducing voice data in the PoC service according to claim 11.   In the process of reproducing the call content, the call content corresponding to the session ID is transmitted to the terminal device that is the transmission source of the re-establishment request message and / or the terminal device described in the re-establishment request message. The method of reproducing voice data in the PoC service according to claim 12.   In the process of reproducing the call content, a second re-establishment request message for requesting re-establishment of the call session with the session ID is transmitted to the terminal device described in the re-establishment request message, As a response to the re-establishment request message 2, when a session establishment response message indicating participation in the call session with the session ID is received, a call session is established with the terminal device that has transmitted the session establishment response message. After confirming, the call content corresponding to the session ID is transmitted to the terminal device that is the transmission source of the re-establishment request message and / or the terminal device that is the transmission source of the session establishment response message. The voice data reproduction in the PoC service according to claim 12, Law.   A server device that provides a PoC service between terminal devices, the server device comprising recording means for recording a call content with a session ID that can identify a call session. .   The server according to claim 15, further comprising a generation unit that generates the session ID when receiving an establishment request message for requesting establishment of a call session from the terminal device. apparatus.   The server device further includes a transmission unit that transmits the generated session ID to the terminal device that is the transmission source of the establishment request message, the terminal device described in the establishment request message, and the recording unit. The server device according to claim 16, characterized in that:   When the server device further receives a re-establishment request message requesting re-establishment of the call session with the session ID from the terminal device, the server device reads the call content corresponding to the session ID from the recording unit. The server apparatus according to claim 17, further comprising a reproducing unit for reproducing.   The reproduction means transmits the call contents corresponding to the session ID to a terminal device that is a transmission source of the re-establishment request message and / or a terminal device described in the re-establishment request message. Item 19. The server device according to Item 18.   The reproduction means transmits a second re-establishment request message for requesting re-establishment of the call session with the session ID to the terminal device described in the re-establishment request message. As a response to the message, when receiving a session establishment response message indicating participation in the call session with the session ID, it is confirmed that a call session has been established with the terminal device that is the transmission source of the session establishment response message. After the confirmation, the call content corresponding to the session ID is transmitted to the terminal device that is the transmission source of the re-establishment request message and / or the terminal device that is the transmission source of the session establishment response message. The server device according to claim 18.   A terminal device that receives a PoC service from a server device, the terminal device comprising transmission means for transmitting an establishment request message for requesting establishment of a call session to the server device. apparatus.   The terminal device further comprises storage means for storing a session ID capable of identifying the call session described in the response message in a storage device of the terminal device when receiving a response message to the establishment request message. The terminal device according to claim 21.   23. The terminal device according to claim 22, further comprising: a retransmission unit that transmits a re-establishment request message for requesting re-establishment of a call session with the session ID.   24. The terminal device according to claim 23, further comprising: a reproducing unit that reproduces a call content returned from the server device as a response to the re-establishment request message.   A program that causes a computer of a server device that provides a PoC service between terminal devices to execute a process of recording a call content with a session ID that can identify a call session.   26. The program according to claim 25, further comprising a process of generating the session ID when receiving an establishment request message requesting establishment of a call session from the terminal device.   The program further includes a process of transmitting the generated session ID to a terminal device that is a transmission source of the establishment request message and a terminal device described in the establishment request message. 26. The program according to 26.   When the program further receives a re-establishment request message requesting re-establishment of the call session with the session ID from the terminal device, the program executes a process of reproducing the call content corresponding to the session ID. The program according to claim 27.   In the process of reproducing the call content, a process of transmitting the call content corresponding to the session ID to the terminal device that is the transmission source of the re-establishment request message and / or the terminal device described in the re-establishment request message. The program according to claim 28, wherein the program is executed.   In the process of reproducing the call content, a second re-establishment request message for requesting re-establishment of the call session with the session ID is transmitted to the terminal device described in the re-establishment request message, As a response to the re-establishment request message 2, when a session establishment response message indicating participation in the call session with the session ID is received, a call session is established with the terminal device that has transmitted the session establishment response message. After confirming, the call content corresponding to the session ID is transmitted to the terminal device that is the transmission source of the re-establishment request message and / or the terminal device that is the transmission source of the session establishment response message. The program according to claim 28, wherein the program is executed.   A program for causing a computer of a terminal device receiving provision of PoC service from a server device to execute processing for transmitting an establishment request message for requesting establishment of a call session to the server device.   When the program further receives a response message to the establishment request message, the program causes the storage device of the terminal device to store a session ID that can identify the call session described in the response message. 32. The program according to claim 31, wherein the program is characterized in that:   The program according to claim 32, further comprising a process of transmitting a re-establishment request message for requesting re-establishment of the call session with the session ID. 34. The program according to claim 33, further comprising executing a process of reproducing a call content returned from the server device as a response to the re-establishment request message.

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