JP2008085808A - Method for calling call setting server - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide the calling method of a call setting server for reproducing a video file just after the start of speech in a communication system in which the reproduction display of a video file is performed by each communication terminal during speech. <P>SOLUTION: The processing of address registration (Registration) is performed by a communication terminal, and when receiving an INVITE (new) message from the communication terminal, an SIP server 40 receives an upload (transfer) request of a video file to be reproduced during talk. Afterwards, the upload processing of the file from the communication terminal to a medial server 70 ends, and when receiving the file transfer completion reporting message from the medium server 70, the SIP server 40 executes processing to call a talk partner. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a calling method of a call setting server in a communication system capable of reproducing and displaying a video file at each communication terminal during a call.

Conventionally, many communication terminals equipped with a videophone function are known. In particular, in a communication terminal equipped with a videophone function in recent years, when a video file stored in the communication terminal is designated for playback during a call, it is displayed on the display unit of the communication terminal. A technique is known in which data of the video file is transmitted to a communication terminal of the other party via a communication line and can be streamed and displayed on a display unit of the communication terminal of the other party.
In addition, the videophone system disclosed in Patent Document 1 transmits a video (for example, CM) corresponding to a user to a videophone terminal that is transmitting, and has personal information of the user on the network side. The user selects a video based on the user, synthesizes voice and ringback tone, and transmits the video file to the outgoing videophone terminal until the other party answers.
JP-A-2005-33442

However, with a communication terminal equipped with a conventional videophone function, when streaming playback (transfer) of a video file using all the lines temporarily during a call, while watching the playback video, ”And the like, there is a problem that they cannot talk to each other during playback.
In addition, when transferring video files in parallel while making a call, there is a problem that the bandwidth that can be used for file transfer is reduced and it takes time to complete the transfer, so that real-time characteristics are lacking.
Further, when streaming playback (transfer) of a video file is performed in parallel with a call, the video file may not be correctly played back if the transfer rate is lower than the rate required for streaming playback.
Furthermore, in a communication terminal equipped with a conventional videophone function, the video file to be played back and displayed on each communication terminal during a call must be transferred during the call. There is also a problem that playback cannot be displayed on the terminal.
Note that the videophone system described in Patent Document 1 is not a technique for displaying the same video on each communication terminal during a call. Also, it is not a technology for transferring a video file for that purpose during a call.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a call setting server calling method that enables playback of video files on each communication terminal immediately after the start of a call. There is to do.

  In order to achieve the above object, according to the call setting server calling method of the present invention, when a video file uploaded to a server on a network is received from a communication terminal during a call, In a communication system in which the video file is distributed to each communication terminal in the middle and the video file can be reproduced and displayed on each communication terminal in a call, along with a call request for calling a call partner, When a request for uploading a video file to be played back during the call is received, after the upload process of the requested video file to the server is completed, a process of calling the other party is executed.

  Alternatively, when the call setting server receives a request for uploading a video file to be played during the call together with a call request for calling the other party, the remaining size of the requested video file to be uploaded to the server The process of calling the other party is executed after the predetermined size is reached. Alternatively, when the call setting server receives a request for uploading a video file to be played back during the call together with a call request for calling the other party, the completion prediction of upload processing of the requested video file to the server is received. The process of calling the other party is executed after a predetermined time has elapsed. Alternatively, when the call setting server receives a request for uploading a video file to be played during the call together with a call request for calling the other party, upload processing of the requested video file to the server is started. When a predetermined time elapses, a process of calling the other party is executed.

  Since the present invention executes a process of calling the other party after the upload process to the media server of the video file desired to be shown to the other party is completed or before the completion, the video file is downloaded from each communication terminal immediately after the start of the call. The video file can be played back, or the video file can be played back after a while.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram of a network to which a call setting server (SIP server) according to the present invention is connected. The mobile terminal device 10, which is an example of a communication terminal, has a videophone function and can make a group call. Call control is performed by sending a message to a SIP (Session Initiation Protocol) server 40 that is a call setting server on an IP network. The audio signal and the video signal are converted into RTP (Real-time Transport Protocol) packets in the mobile terminal device 10 and transmitted to the partner communication terminal device. The RTP packet is transmitted to a partner terminal device or another network 60 via a PDSN (Packet Data Serving Node) 50. An SMS (Short Message Service) server 30 creates an SMS message that conveys, for example, an incoming call of a group call to the calling party based on the incoming call notification from the SIP server 40, and transmits it to the terminal device of the calling party. If the call partner has registered an address with the SIP server 40 (Registration) and the call notification from the SIP server 40 to the call partner is possible, the call notification by the SMS message from the SMS server 30 is unnecessary. It is. The media server 70 temporarily stores the video / audio file sent from the mobile terminal device 10, and in response to the stored video / audio file, the video / audio file of the video / audio file is received by a command from the mobile terminal device 10 during a call. When a reproduction request is received, a video / audio file is distributed to each mobile terminal device 10 during a call, and video / audio data is reproduced / stopped / paused.

  In the above description, the incoming call notification is notified by the SMS message so as not to wastefully occupy the band between the mobile terminal device 10 and the base station 20. That is, in order for the mobile terminal device 10 to receive a notification from the SIP server 40, it is necessary to always establish a PPP connection between the mobile terminal device 10 and the base station 20 (or PDSN 50). However, the number of portable terminal devices 10 that can be connected to the base station 20 at the same time is limited, and the bandwidth utilization efficiency is also deteriorated. Therefore, the incoming call notification is performed by the SMS message, and then the PPP (Point to Point Protocol) connection is established to communicate with the SIP server 40.

  FIG. 2 is a block diagram showing an example of a SIP server according to the present invention. The SIP server 40 includes a SIP information reception unit 41, a call processing unit 42, a control unit 43, an SMS transmission request unit 44, a determination unit 45, a SIP information transmission unit 46, and a media server information reception unit 47. Prepare.

  The SIP information receiving unit 41 receives SIP information from the mobile terminal device 10 through the PDSN 50. The call processing unit 42 performs processing related to a call in accordance with SIP (Session Initiation Protocol).

  When the SIP information receiving unit 41 receives an INVITE (new) message, which is a call request, the call processing unit 42 performs a process of calling the call partner (the called-side mobile terminal device 10) as a called-side mobile terminal device. 10 generates an SMS transmission request for requesting the SMS server 30 to transmit SMS information for requesting address registration (Registration) to the SIP server 40, and sends the generated SMS transmission request to the SMS transmission request unit 44. input. The SMS transmission request is made when the mobile terminal device 10 on the receiving side has not performed address registration (Registration) with the SIP server 40. When the mobile terminal device 10 on the receiving side has registered an address with the SIP server 40 (Registration), or when the address registration (Registration) has been performed on the SIP server 40 based on the SMS information, the call partner (the mobile terminal device on the receiving side) An INVITE message is transmitted to 10).

  The media server information receiving unit 47 receives information related to upload (transfer) of the video file from the media server 70.

  FIG. 3 shows a case where the SIP server shown in FIG. 2 receives a call request for calling a call partner from a portable terminal device (communication terminal) and also receives a request for upload (transfer) of a video file to be played back during the call. FIG. 7 is a sequence diagram for explaining a first example of the operation of the SIP server of FIG. First, an address registration (Registration) process is performed in the SIP server 40 by the communication terminal A. Next, when the SIP server 40 receives an INVITE (new) message from the communication terminal A, the SIP server 40 receives a request for upload (transfer) of a video file to be reproduced during a call. At this time, the communication terminal A starts uploading (transferring) processing to the media server 70 of the video file to be reproduced during the call. FIG. 4 is a diagram illustrating an example of a screen displayed on the display device of the communication terminal A during the upload process. On the upload processing screen, the antenna and battery icons are displayed at the top, the message “Transferring file” and the caller's text and the phone number of the other party are displayed in the center. May be displayed, or the numbers of all members may be displayed), and a bar indicating the progress of file transfer and the transfer amount (%) are displayed at the bottom.

  When the file upload process ends, the media server 70 notifies the SIP server 40 of a file transfer completion message. When the SIP server 40 receives the file transfer completion notification message from the media server 70, it makes an SMS transmission request (incoming call notification) to the SMS server 30. When the SMS server 30 receives the SMS transmission request (call notification), the SMS server 30 notifies the designated communication terminals B and C of the SMS information. If the other party (terminals B and C) has registered an address with the SIP server 40 (Registration), the notification of the SMS information is omitted, and the SIP server 40 receives the designated communication terminals B and C. An INVITE message is transmitted.

  When the communication terminals B and C receive the notification of the SMS information and perform address registration processing for the SIP server 40, the SIP server 40 transmits an INVITE message to the communication terminals B and C. When the communication terminals B and C receive the INVITE message, the communication terminals B and C sound a ring tone and transmit Ringing to the communication terminal A via the SIP server 40. When the communication terminals B and C are off-hook, a 200 OK response message is transmitted to the communication terminal A via the SIP server 40. When communication terminal A transmits an ACK message to communication terminals B and C in response to reception of the 200 OK response message, a connection is established between communication terminal A and communication terminals B and C. A call is started between the communication terminals B and C.

  In the embodiment described above, since the process of calling the other party is performed after the upload process of the designated video file to the media server 70 is completed, the video file can be reproduced immediately after the start of the call.

  In FIG. 3, the SIP server 40 performs a process of calling the other party (a process of making an incoming call notification to the SMS server 30) after completing the upload process of the designated video file to the media server 70. However, considering the time until the communication terminals B and C receive the SMS message and respond, the incoming call notification may be sent to the SMS server 30 before the upload process is completed. Hereinafter, an example in which the SIP server 40 performs a process of calling a call partner before the upload process is completed will be described.

  In the second embodiment, when the SIP information receiving unit 41 of the SIP server 40 receives an INVITE (new) message and receives a request for uploading a video file to be played back during a call, the call processing unit 42 is requested. After the remaining size of the uploaded video file to the media server 70 reaches a predetermined size, a process of calling the other party is executed.

  Here, the determination unit 45 determines whether the remaining size of the requested video file uploaded to the media server 70 has reached a predetermined size. The determination unit 45 may determine the size of the requested video file by checking the size of the uploaded data, or obtain information indicating the upload progress status from the media server 70. The determination may be made by receiving the result determined by the media server 70. The remaining size may be a ratio to the total data size or a fixed size. Data indicating a threshold value indicating a certain size is stored in the determination unit 45.

  It takes time until the caller is notified by SMS and the recipient's notification terminal registers the address of the SIP server 40 (Registration) and calls the other party. In the second embodiment, however, the time required for this call is taken into account. Then, since the process of calling the other party is executed after the remaining size to be uploaded reaches a predetermined size, the other party can be called earlier than in the first embodiment, and the video file can be reproduced immediately after the start of the call. Can do.

  In the third embodiment, when the SIP information receiving unit 41 of the SIP server 40 receives an INVITE (new) message and receives a request for uploading a video file to be played back during a call, the call processing unit 42 is requested. The process of calling the other party is executed after the predicted completion time of the upload process of the video file to the media server 70 exceeds a predetermined time.

  Here, the determination unit 45 determines whether or not the estimated completion time of the upload process of the requested video file to the media server 70 has exceeded a predetermined time. Note that the determination unit 45 may determine the estimated size of the requested video file by estimating the estimated completion time and confirm the time since uploading, or may determine the upload completion prediction from the media server 70. The determination may be made by acquiring the time and confirming the time since the upload, or by receiving the result determined by the media server 70. In addition, the predetermined time may be a proportion of time calculated from the estimated completion time for all data sizes, or may be a fixed time. Data indicating a threshold value indicating a certain time is stored in the determination unit 45. In addition, in the case of a certain time, it is considered on the network (on the system) that the call partner is called via the SMS server 30 and the call partner registers an address with the SIP server 40 and receives the INVITE message. The time spent is preferred.

  In the third embodiment, since the other party is called when the remaining time until the upload process is completed reaches a predetermined time, the other party can be called earlier than the first embodiment for a predetermined time and immediately after the start of the call. Can play files.

  In the fourth embodiment, when the SIP information receiving unit 41 of the SIP server 40 receives an INVITE (new) message and receives a request for uploading a video file to be played back during a call, the call processing unit 42 is requested. When a predetermined time has elapsed since the uploading process of the video file to the media server 70 is started, a process of calling the other party is executed.

  Here, the determination unit 45 determines whether or not a predetermined time has elapsed since the upload processing of the requested video file to the media server 70 is started. Note that the determination unit 45 may make the determination by checking the time since the upload process of the requested video file to the media server 70 is started, or after the upload process is started from the media server 70. May be determined by acquiring and confirming the time, or may be determined based on a result determined by the media server 70. In addition, data indicating a threshold value indicating a predetermined time is stored in the determination unit 45.

  In the fourth embodiment, since the calling party is called after a predetermined time has elapsed from the start of the upload process, it is possible to prevent the start of the call from being delayed.

  In the second, third, and fourth embodiments, the upload process may not be completed due to the influence of the communication path even when the communication terminals of the communication terminals B and C respond and the call is ready. In that case, when communication with the other party starts, the communication terminal A secures a bandwidth necessary for the call and performs upload processing with the remaining bandwidth. In other words, the bandwidth that can be used for file transfer is calculated from the bandwidth that is currently available and the bandwidth that is used for videophone, for example, and the amount of file transfer is reduced so that the call is not affected. To continue the file transfer. As another method, when a call with the other party is started, a silent section in which the amount of voice packets transferred is below a certain amount is detected, and when a silent state is reached, the files are uploaded together. Also good. FIG. 5 is a diagram illustrating an example of a screen displayed on the display device of the communication terminal A when the upload process is not completed when the call is ready. A bar 203 is displayed on the screen so that the upload progress can be known. 201 is an image of the other party who is making a videophone call, and 202 is his own image.

  Next, the media server will be described. FIG. 7 is a configuration diagram illustrating an example of a media server. The media server 70 includes a video / audio file reception unit 71, a file processing unit 72, a control unit 73, a video / audio file storage unit 74, a monitoring unit 75, a video / audio file transmission unit 76, and a media server. An information transmission unit 77.

  The video / audio file receiving unit 71 receives a video file uploaded from the mobile terminal device 10 through the PDSN 50. The file processing unit 72 stores the received video file in the video / audio file storage unit 74. When the file processing unit 72 receives a video file playback request from the mobile terminal device 10 during a call, the file processing unit 72 transmits the video file stored in the video / audio file storage unit 74 from the video / audio file transmission unit 76 through the PDSN 50. Delivered to each mobile terminal device 10.

  The monitoring unit 75 monitors the file processing unit 72 to acquire information indicating the upload progress status, information about the estimated upload completion time, information about the upload start time, or determination information, and these are obtained via the media server information transmitting unit 77. Is sent to the SIP server 40.

  The video file uploaded to the media server 70 can be operated from the communication terminal that uploaded the video file. Note that an uploaded video file such as playback may be controlled by an operation from the other party. When the communication terminal A instructs to play the video file, the video and audio of the speaker is stopped, and the video file may be transmitted from the media server 70 to the communication terminals A, B, and C. As described above, the communication terminal Since the video file to be reproduced is in the media server 70, the media server 70 can synthesize the voice of the speaker with the video and audio of the file and transmit it to the communication terminal of the other party. If the voice of the video file and the voice of the speaker can be synthesized, it is possible to have a conversation (comment) on the video file being played. There is a method of synthesizing the voice of the video file and the voice of the speaker at the communication terminal side, but when synthesizing the voices of all the speakers, the voice data of all the speakers is required for the communication terminal.

  In addition, the video file uploaded to the media server 70 is deleted when the call is not established (when the outgoing call is canceled) or when the call is ended. If available, it may be downloaded from the media server 70 and stored in the communication terminal.

  Further, in the present invention, the video file may be transmitted to the communication terminal of the other party of the call separately from the video phone, for example, without synthesizing the voice of the video file and the voice of the speaker. In this case, it is necessary to notify the communication terminal in advance of information on the media server that transmits the video file. FIG. 6 is a diagram showing an example of a screen when a video file transmitted separately from the videophone is being received and played back while a videophone call is being made. 201 is the other party's video, 202 is his own video, and 204 is the file playback video.

It is a block diagram of a network to which a SIP server according to the present invention is connected. It is a block diagram which shows an example of the SIP server which concerns on this invention. It is a sequence diagram explaining the 1st Example of operation | movement of a SIP server. It is a figure which shows the example of the screen displayed on the display apparatus of the communication terminal A at the time of an upload process. It is a figure which shows the example of the screen displayed on the display apparatus of the communication terminal A when upload processing is not completed when it becomes a telephone call possible state. It is a figure which shows the example of a screen when receiving and reproducing | regenerating the video file transmitted separately from the videophone when making a telephone call. It is a block diagram which shows an example of a media server.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Mobile terminal device 20 Base station 30 SMS server 40 SIP server 41 SIP information receiving part 42 Call processing part 43 Control part 44 SMS transmission request part 45 Judgment part 46 SIP information transmitting part 47 Media server information receiving part 50 PDSN
60 network 70 media server 71 video / audio file receiving unit 72 file processing unit 73 control unit 74 video / audio file storage unit 75 monitoring unit 76 video / audio file transmission unit 77 media server information transmission unit 201 partner video 202 own video 203 Bar 204 File playback video

Claims (4)

When a video file uploaded to a server on the network receives a playback request for the video file from a communication terminal in a call, the video file is distributed to each communication terminal in a call, In a communication system capable of reproducing and displaying the video file on a communication terminal,
When the call setting server receives a request for uploading a video file to be played during the call, together with a call request for calling the other party, after the upload processing of the requested video file to the server is completed, A calling method for a call setting server, wherein a process for calling the other party is executed. When a video file uploaded to a server on the network receives a playback request for the video file from a communication terminal in a call, the video file is distributed to each communication terminal in a call, In a communication system capable of reproducing and displaying the video file on a communication terminal,
When the call setting server receives a request for uploading a video file to be played during the call together with a call request for calling the other party, the remaining size of the requested video file to be uploaded to the server is predetermined. A call setting server calling method, wherein the process of calling the other party is executed after the size of the call is reached. When a video file uploaded to a server on the network receives a playback request for the video file from a communication terminal in a call, the video file is distributed to each communication terminal in a call, In a communication system capable of reproducing and displaying the video file on a communication terminal,
When the call setting server receives a request for uploading a video file to be played back during the call together with a call request for calling the other party, the estimated completion time of upload processing of the requested video file to the server is received. A calling method of a call setting server, wherein a process of calling the other party is executed after a predetermined time has elapsed. When a video file uploaded to a server on the network receives a playback request for the video file from a communication terminal in a call, the video file is distributed to each communication terminal in a call, In a communication system capable of reproducing and displaying the video file on a communication terminal,
When the call setting server receives a request for uploading a video file to be played back during the call, together with a call request for calling the other party, the upload processing of the requested video file to the server is started. A calling method for a call setting server, wherein a process of calling the other party is executed when a predetermined time has elapsed.

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