JP2008104085A - Communication terminal, communication method, and communication program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent disconnection state from being sustained when communication between a communication terminal 10 and a server is disconnected due to server down, or the like. <P>SOLUTION: The communication terminal comprises a section for acquiring status information from a communication controller, a section for displaying the status, a section for receiving information which warns disconnection of communication between the communication terminal and a communication controller, a section for notifying user that the status information cannot be acquired when warning information is received, and a communication establishment control section for reconnecting communication between the communication terminal and the communication controller after it is disconnected. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a communication terminal, a communication method, and a communication program. In particular, the present invention relates to a communication terminal, a communication method, and a communication program that acquire and display status information indicating the status of a user of another communication terminal.

Whether or not the caller number of the communication terminal of the communication partner that has requested the reference of the state information (for example, presence information) indicating the current state of the communication terminal is a telephone number registered in the telephone book of the communication terminal Therefore, a communication terminal that rejects a request from a communication terminal of a communication partner not registered in the telephone directory has been proposed.
JP 2001-274875 A

  However, in the invention described in Patent Document 1, the user of the communication terminal cannot recognize that the server that controls the provision of presence information is down, and the presence information that should be regularly updated may not be updated. is there.

  Then, an object of this invention is to provide the communication terminal, the communication method, and communication program which can solve the said subject. This object is achieved by a combination of features described in the independent claims. The dependent claims define further advantageous specific examples of the present invention.

  In order to solve the above problem, in the first embodiment of the present invention, an external communication that acquires and displays status information indicating the status of a user of another communication terminal and manages the status information The status information acquisition unit that acquires status information from the control device, the display unit that displays the status indicated by the status information acquired by the status information acquisition unit, and the communication connection between the communication terminal and the communication control device are disconnected. Warning information indicating that the status information acquisition unit cannot acquire status information when the warning information receiving unit receives warning information from the communication control device and the warning information receiving unit receives warning information. After the communication connection between the communication terminal and the communication control device is cut off, the stop notification unit that notifies the user of the communication terminal, and the communication terminal A communication establishment control unit that reconnects communication with the communication control device, and the status information acquisition unit newly updates the status information from the communication control device after the communication between the communication terminal and the communication control device is reconnected. The display unit displays the status indicated by the status information newly acquired by the status information acquisition unit after the communication between the communication terminal and the communication control device is reconnected.

  Further, in the second embodiment of the present invention, an external communication control apparatus that acquires status information indicating the status of a user of another communication terminal and displays the status information on the communication terminal, and manages the status information The status information acquisition stage for acquiring status information from the network, the display stage for displaying the status indicated by the status information acquired in the status information acquisition stage on the display unit, and the communication connection between the communication terminal and the communication control device are disconnected. A warning notification indicating that the status information cannot be acquired in the status information acquisition stage when the warning information is received in the warning information reception stage and the warning information reception stage. A stop notification stage for notifying the user of the communication terminal, and communication between the communication terminal and the communication control device A communication establishment control step for reconnecting communication between the communication terminal and the communication control device after the connection is disconnected, and in the status information acquisition step, communication between the communication terminal and the communication control device is reconnected. After the status information is newly acquired from the communication control device, the display unit indicates the status information newly acquired in the status information acquisition stage after the communication between the communication terminal and the communication control device is reconnected. Display status.

  Further, in the third aspect of the present invention, there is provided a communication program for a communication terminal that acquires and displays status information indicating the status of a user of another communication terminal, and the communication terminal is an external program that manages the status information. Status information acquisition unit that acquires status information from the communication control device, a display unit that displays the status indicated by the status information acquired by the status information acquisition unit, and the communication connection between the communication terminal and the communication control device is disconnected When the warning information receiving unit receives the warning information from the communication control device and the warning information receiving unit receives the warning information, a stop notification indicating that the status information acquisition unit cannot acquire the status information Stop notification unit for notifying the user of the terminal, after the communication connection between the communication terminal and the communication control device is disconnected, the communication terminal It functions as a communication establishment control unit that reconnects communication with the communication control device, and after the communication between the communication terminal and the communication control device is reconnected to the status information acquisition unit, new status information is received from the communication control device. The status information indicated by the status information newly acquired by the status information acquisition unit after the communication between the communication terminal and the communication control device is reconnected is displayed on the display unit.

  The above summary of the invention does not enumerate all the necessary features of the present invention, and sub-combinations of these feature groups can also be the invention.

  According to the present invention, when a communication connection between the communication terminal 10 and the server is disconnected due to a server down or the like, it is possible to prevent a state in which the communication connection remains disconnected from continuing. it can.

  Hereinafter, the present invention will be described through embodiments of the invention. However, the following embodiments do not limit the claimed invention, and all combinations of features described in the embodiments are included. It is not necessarily essential for the solution of the invention.

  FIG. 1 shows an outline of the operation of a communication terminal 10 according to an embodiment of the present invention. The communication terminal 10 acquires and displays status information indicating the status of the user of the other communication terminal 10. Here, presence information indicating the current state of the user of the communication terminal 10 and the current setting status of the communication terminal 10 is an example of status information. The communication terminal 10 acquires status information of other communication terminals 10 from the presence server 24 via the network 40. Further, the communication terminal 10 causes the presence server 24 to record its own status information via the network 40. The server system 20 is an example of an IMS network that includes the SIP server 22 and the presence server 24.

  In the communication terminal 10 according to the present embodiment, when the communication connection related to transmission / reception of status information is disconnected between the communication terminal 10 and the server due to a server down or the like, the communication connection remains disconnected. The purpose is to prevent it from continuing.

  First, when the presence server 24 that provides status information to the communication terminal 10 every predetermined period goes down, an error message is transmitted from the server system 20 having the presence server 24 to the communication terminal 10 via the network 40 (S100). . When receiving an error message, the communication terminal 10 notifies the user of information indicating that the provision of status information to the communication terminal 10 is stopped due to a server down via the display unit 110.

  For example, the communication terminal 10 displays text data that prompts the user to reconnect communication such as “Changed to“ Stopped ”. Do you want to change to“ Providing ”?” On the display unit 110. . The display unit 110 pops up the text data. Then, the communication terminal 10 causes the user to select the icon 500 or the icon 510. When the user selects the icon 500, the communication terminal 10 tries to reconnect communication with the presence server 24 (S105). Further, when an error message is transmitted from the server system 20 to the communication terminal 10 via the network 40 (S100), the communication terminal 10 may automatically establish communication connection with the presence server 24.

  The communication terminal 10 according to the present embodiment transmits predetermined information to the user in order to prompt the user to reconnect the communication when the communication connection with the server is disconnected due to a failure such as a server down. Can be notified. As a result, the user can accurately recognize that the communication connection between the user's own communication terminal 10 and the server has been disconnected, and the status information cannot be provided. It is possible to prevent the state in which the communication with the terminal is disconnected from being continued.

  FIG. 2 shows an example of the functional configuration of the communication terminal 10 according to the present embodiment. The communication terminal 10 is a communication terminal that communicates via an external server system 20, and is specifically a mobile phone terminal. For example, the communication terminal 10 is a mobile phone terminal that receives presence information of another communication terminal 10 via the presence server 24, and may be a mobile phone terminal that communicates by a PTT communication method of a half-duplex communication method. . The communication terminal 10 may be a notebook personal computer having a communication function, a PDA, a portable information terminal such as a game machine, and a desktop PC.

  The communication terminal 10 includes a terminal-side communication unit 100, a display unit 110, a display control unit 112, a stop notification unit 114, a voice output unit 116, a display instruction input unit 118, a communication establishment control unit 120, a position information acquisition unit 130, a communication amount. A measurement unit 140, a communication amount storage unit 142, and an establishment cycle determination unit 150 are provided. The terminal-side communication unit 100 includes a status information acquisition unit 102, a warning information reception unit 104, a reconnection program reception unit 106, and a data transmission / reception unit 108.

  The data transmission / reception unit 108 transmits / receives communication data to / from an external communication control device. The external communication control device is an example of the server system 20. Further, the data transmission / reception unit 108 establishes a communication connection with the communication control device under the control of the communication establishment control unit 120. The data transmission / reception unit 108 supplies the status information received from the communication control apparatus to the status information acquisition unit 102. Further, the data transmitting / receiving unit 108 supplies the warning information received from the server system 20 to the warning information receiving unit 104. Further, the data transmission / reception unit 108 supplies the reconnection program received from the communication control device to the reconnection program reception unit 106. Further, the data transmission / reception unit 108 supplies information related to the communication amount between the communication terminal 10 and another communication terminal 10 to the communication amount measurement unit 140.

  The warning information receiving unit 104 receives warning information (for example, an error message based on server down) indicating that the communication connection between the communication terminal 10 and the communication control device is disconnected from the communication control device. The warning information receiving unit 104 may receive warning information including the latest status information of the user of the other communication terminal 10. The warning information receiving unit 104 supplies the warning information to the stop notification unit 114 and the communication establishment control unit 120. Further, when the warning information includes the latest status information of the user of the other communication terminal 10, the warning information reception unit 104 displays the latest status information according to the control of the status information acquisition unit 102. To the status information acquisition unit 102.

  The status information acquisition unit 102 acquires status information from an external communication control device that manages status information. When the communication connection between the communication terminal 10 and the communication control device is disconnected, the status information acquisition unit 102 newly acquires status information from the communication control device after the communication is connected again. The status information acquisition unit 102 acquires the latest status information from the warning information received by the warning information reception unit 104. The status information acquisition unit 102 supplies the acquired status information to the display control unit 112.

  The display control unit 112 causes the display unit 110 to display the status indicated by the status information, the status of communication between the communication terminal 10 and the communication control device, information for prompting the user to perform a predetermined instruction, and the like. The display unit 110 is controlled by the display control unit 112 and displays the status indicated by the status information acquired by the status information acquisition unit 102. When the communication connection between the communication terminal 10 and the communication control device is disconnected, the display unit 110 is newly acquired by the status information acquisition unit 102 after the communication between the communication terminal 10 and the communication control device is reconnected. The status indicated by the status information is displayed.

  Further, the display unit 110 is controlled by the display control unit 112, and the status information is received from the user of the communication terminal 10 until the communication terminal 10 and the communication control apparatus are disconnected from the communication connection and reconnected. When the display is instructed, the status indicated by the latest status information acquired by the status information acquisition unit 102 is displayed. Specifically, the display instruction input unit 118 causes the user to input a display instruction for instructing display of status information. The display instruction input unit 118 supplies display instruction information indicating the display instruction to the display control unit 112 when the display instruction is input. When receiving the display instruction information, the display control unit 112 causes the display unit 110 to display the status indicated by the status information acquired by the status information acquisition unit 102.

  The stop notification unit 114 notifies the user of the communication terminal 10 of a stop notification indicating that the status information acquisition unit 102 cannot acquire the status information when the warning information reception unit 104 receives the warning information. Specifically, the stop notification unit 114 supplies the warning information to the display control unit 112 when the warning information is received from the warning information receiving unit 104. Then, the display control unit 112 causes the display unit 110 to display information indicating the stop notification. For example, the display control unit 112 causes the display unit 110 to display “stopped”. Further, the stop notification unit 114 may output a predetermined sound indicating that the warning information has been received from the sound output unit 116.

  The position information acquisition unit 130 acquires position information indicating the position where the communication terminal 10 exists. For example, the position information acquisition unit 130 may have a GPS function, and acquires position information indicating a position where the communication terminal 10 exists using the GPS function. The position information acquisition unit 130 supplies the acquired position information to the communication establishment control unit 120. The reconnection program receiving unit 106 receives from the communication control device a reconnection program that causes the communication terminal 10 to execute reconnection of communication with the communication control device. The reconnection program receiving unit 106 supplies the received reconnection program to the communication establishment control unit 120.

  The communication amount measuring unit 140 measures the communication amount between the communication terminal 10 and another communication terminal 10. The communication amount measuring unit 140 measures the communication amount every predetermined time, every predetermined number of days, or every predetermined number of months. The communication amount measurement unit 140 supplies the measured communication amount to the communication amount storage unit 142. The communication amount storage unit 142 stores the communication amount of the communication terminal 10 received from the communication amount measurement unit 140. The communication volume storage unit 142 supplies the stored clinical settings to the establishment cycle determination unit 150 in accordance with the control of the establishment cycle determination unit 150.

  The establishment cycle determination unit 150 determines a cycle in which the communication establishment control unit 120 performs reconnection of communication between the communication terminal 10 and the communication control device according to the communication amount stored in the communication amount storage unit 142. The establishment cycle determination unit 150 determines a shorter reconnection cycle when the communication amount stored in the communication amount storage unit 142 is larger. The establishment cycle determining unit 150 supplies a concession indicating the determined cycle to the communication establishment control unit 120.

  The communication establishment control unit 120 reconnects communication between the communication terminal 10 and the communication control device after the communication connection between the communication terminal 10 and the communication control device is disconnected. For example, the communication establishment control unit 120 reconnects communication between the communication terminal 10 and the communication control device in response to a user instruction referring to the “stopped” message displayed on the display unit 110. Further, the communication establishment control unit 120 reconnects the communication between the communication terminal 10 and the communication control device to another communication terminal 10 after the communication connection between the communication terminal 10 and the communication control device is disconnected. You may perform with the predetermined period with respect to the communication terminal 10 different from a predetermined period. For example, the communication establishment control unit 120 performs reconnection of communication between the communication terminal 10 and the communication control device at the cycle determined by the establishment cycle determination unit 150. Note that the communication establishment control unit 120 may execute reconnection of communication between the communication terminal 10 and the communication control device for a predetermined time until communication is reconnected.

  Further, the communication establishment control unit 120 reconnects the communication between the communication terminal 10 and the communication control device to another communication terminal 10 after the communication connection between the communication terminal 10 and the communication control device is disconnected. You may perform at the time predetermined with respect to the communication terminal 10 different from a predetermined time. Note that the communication establishment control unit 120 may execute reconnection at each time when communication with the communication control device cannot be reconnected at the time. Thereby, it can prevent that the some communication terminal 10 performs reconnection of communication simultaneously with a communication control apparatus, and it can prevent that communication traffic increases.

  In addition, the communication establishment control unit 120 may execute communication reconnection between the communication terminal 10 and the communication control device in a cycle that is associated with the position indicated by the position information acquired by the position information acquisition unit 130 in advance. . Further, the communication establishment control unit 120 may execute reconnection of communication between the communication terminal 10 and the communication control device at a time associated in advance with the position indicated by the position information acquired by the position information acquisition unit 130. . Furthermore, when the communication establishment control unit 120 receives the reconnection program, the communication establishment control unit 120 may execute communication reconnection according to the reconnection program. For example, the communication establishment control unit 120 executes the reconnection program after the communication connection between the communication terminal 10 and the communication control device is disconnected, and executes the reconnection of communication between the communication terminal 10 and the communication control device. To do.

  According to the communication terminal 10 according to the present embodiment, when communication with the communication control device is disconnected, the user can be notified that the communication connection has been disconnected. Thereby, it is possible to prevent the user from using the communication terminal 10 without recognizing that the communication connection is disconnected.

  FIG. 3 shows an example of the flow of processing in the communication terminal 10 according to the present embodiment. First, based on the control of the communication establishment control unit 120, the communication terminal 10 establishes communication connection with the communication control device. That is, the communication terminal 10 logs in to the server system 20 (S1000). Subsequently, when the login is successful, the display control unit 112 of the communication terminal 10 displays a message (for example, “providing”) indicating that the presence information can be provided from the communication control device on the display unit 110. (S1010). In this state, the status information acquisition unit 102 of the communication terminal 10 can execute presence information acquisition processing (S1020).

  Then, the status information acquisition unit 102 of the communication terminal 10 periodically acquires the presence information of other communication terminals 10 from the communication control device (for example, the presence server 24) (S1022). Further, the data transmission / reception unit 108 of the communication terminal 10 transmits and records its own presence information to the communication control device, and provides it to other communication terminals 10 (S1024). And the display control part 112 of the communication terminal 10 displays the presence information of the other communication terminal 10 which the status information acquisition part 102 acquired on the display part 110 (S1026). Here, when the communication control device is down (S1028), the warning information receiving unit 104 receives warning information, for example, an error notification transmitted from the server system 20 to the communication terminal 10.

  Then, the stop notification unit 114 notifies the user of the error notification received by the warning information receiving unit 104 (S1030). Subsequently, the communication establishment control unit 120 executes communication reconnection to log in to the server system 20 (S1040). When the reconnection of communication between the communication terminal 10 and the server system 20 is successful, the status information acquisition unit 102 acquires the presence information of another communication terminal 10 again (S1050). Then, the display control unit 112 marches the presence information displayed on the display unit 110 using the presence information acquired again by the status information acquisition unit 102, and causes the display unit 110 to display the updated presence information (S1060). ).

  FIG. 4 shows an example of the functional configuration of the server system 20. The server system 20 controls the provision of status information to the communication terminal 10. Further, the server system 20 sets a timing for requesting communication connection from the communication terminal 10 when the server is restored after the server goes down. The server system 20 includes a SIP server 22 and a presence server 24. The server system 20 is an example of a communication control device described in the claims.

  The server system 20 includes a server-side communication unit 200, a reconnection program selection control unit 210, a cycle determination unit 215, a reconnection program storage unit 220, a status information transmission / reception control unit 230, a status information storage unit 240, and prohibition / permission information storage. Part 250 is provided. The server-side communication unit 200 includes a data transmission / reception unit 201, a status information transmission / reception unit 202, a prohibition / permission information reception unit 203, a reconnection program transmission unit 204, a warning information transmission unit 205, and a terminal location information acquisition unit 206. .

  The data transmission / reception unit 201 transmits / receives predetermined communication data to / from the plurality of communication terminals 10. The data transmission / reception unit 201 transmits the status information received from the status information transmission / reception unit 202 to the communication terminal 10. Further, the data transmission / reception unit 201 supplies status information received from the communication terminal 10 to the status information transmission / reception unit 202. Then, the data transmitting / receiving unit 201 prohibits the permission information that permits the communication terminal 10 to provide status information to other communication terminals 10 and the prohibition information that prohibits the provision of status information to other communication terminals 10. This is supplied to the permission information receiving unit 203.

  In addition, the data transmission / reception unit 201 transmits the reconnection program received from the reconnection program transmission unit 204 to the communication terminal 10. In addition, the data transmission / reception unit 201 transmits the warning information received from the warning information transmission unit 205 to the communication terminal 10. Further, the data transmission / reception unit 201 supplies information regarding the position where the communication terminal 10 exists to the terminal position information acquisition unit 206.

  The status information storage unit 240 stores status information of each of the plurality of communication terminals 10. The status information storage unit 240 is controlled by the status information transmission / reception control unit 230, and stores status information and supplies status information to the status information transmission / reception control unit 230. The status information transmission / reception unit 202 is controlled by the status information transmission / reception control unit 230 and receives the status information of each of the plurality of communication terminals 10 from each of the plurality of communication terminals 10. Further, the status information transmission / reception unit 202 is controlled by the status information transmission / reception control unit 230, and the status information of the other communication terminals 10 stored in the status information storage unit 240 is periodically stored in each of the plurality of communication terminals 10. Send.

  The prohibition / permission information receiving unit 203 identifies, from each of the plurality of communication terminals 10, communication terminal identification information that identifies the communication terminal 10 that is permitted to provide status information, and communication terminals 10 that are prohibited from providing status information. The communication terminal identification information is received in association with the communication terminal identification information for identifying each of the plurality of communication terminals 10. The prohibition / permission information receiving unit 203 supplies the received information to the prohibition / permission information storage unit 250 for storage. The warning information transmission unit 205 transmits warning information indicating that the communication connection between the server system 20 and the communication terminal 10 is disconnected to the communication terminal 10. The terminal position information acquisition unit 206 acquires terminal position information indicating the position where each of the plurality of communication terminals 10 exists. The terminal location information acquisition unit 206 supplies the acquired terminal location information to the reconnection program selection control unit 210 and the cycle determination unit 215.

  The prohibition / permission information storage unit 250 associates the communication terminal identification information identifying the communication terminal 10 with the communication terminal identification information of another communication terminal 10 that provides status information that can be provided by the communication terminal 10. In addition, communication terminal identification information of other communication terminals 10 having status information that cannot be provided by the communication terminal 10 is stored in association with the communication terminal identification information for identifying the communication terminal 10. The prohibition / permission information storage unit 250 is, for example, a communication terminal of another communication terminal 10 that provides presence information that can be provided by the communication terminal 10 in association with the communication terminal identification information that identifies the communication terminal 10. A resource list for storing identification information; In addition, the prohibition / permission information storage unit 250 associates with communication terminal identification information for identifying the communication terminal 10 and communicates with other communication terminals 10 having presence information that the communication terminal 10 cannot receive. It has a block list for storing terminal identification information.

  The reconnection program storage unit 220 is a program that causes the communication terminal 10 to perform reconnection to the server system 20 when the communication connection between the communication terminal 10 and the server system 20 is disconnected. And the reconnection program supplied beforehand to the communication terminal 10 is stored. The reconnection program storage unit 220 supplies the reconnection program to the reconnection program selection control unit 210. The cycle determination unit 215 determines a cycle in which the plurality of communication terminals 10 execute reconnection to the server system 20 according to the terminal location information received from the terminal location information acquisition unit 206. For example, the cycle determination unit 215 may have a cycle storage unit that stores a cycle for executing reconnection in advance in association with location information indicating a location, and the terminal received from the terminal location information acquisition unit 206 The period corresponding to the position information including the terminal position indicated by the position information is determined as the period for executing reconnection. The period determination unit 215 supplies the determined period to the reconnection program selection control unit 210.

  The reconnection program selection control unit 210 selects a reconnection program to be executed when the communication terminal 10 reconnects communication with the server system 20. Specifically, the reconnection program selection control unit 210 selects a reconnection program that causes the plurality of communication terminals 10 to reconnect to the server system 20 at different periods. For example, the reconnection program selection control unit 210 selects the reconnection program stored in the reconnection program storage unit 220 according to the terminal position indicated by the terminal position information acquired from the terminal position information acquisition unit 206. That is, the reconnection program selection control unit 210 selects a reconnection program that causes the communication terminal 10 to execute reconnection in one cycle according to one terminal position, and at another cycle according to another terminal position. A reconnection program for causing the communication terminal 10 to execute reconnection is selected.

  In addition, when the reconnection program selection control unit 210 receives the cycle determined by the cycle determination unit 215, the reconnection program selection control unit 210 receives a cycle preset in the reconnection program stored in the reconnection program storage unit 220. It may be replaced with another period. The reconnection program selection control unit 210 supplies the selected reconnection program to the reconnection program transmission unit 204. The reconnection program transmission unit 204 transmits the reconnection program received from the reconnection program selection control unit 210 to each of the plurality of communication terminals 10.

  FIG. 5 is a block diagram illustrating an example of the architecture of the server system 20. The server system 20 includes an aggregation proxy 400, a shared XDMS 410, a presence XDMS 420, and an RLS XCMS 430.

  First, the communication terminal 10 acquires the presence information of other communication terminals 10 from the presence XDMS 420, and constructs a presence contact list (PCL: Presence Contact List). Subsequently, the communication terminal 10 displays the constructed PCL on the display unit 110. In another embodiment, the PCL is stored in the Shared XDMS 410, and the communication terminal 10 accesses the Shared XDMS 410 every time the PCL is displayed on the communication terminal 10. Then, the communication terminal 10 acquires the PCL from the Shared XDMS 410 and displays the PCL including the presence information of the other communication terminal 10 on the display unit 110 of the communication terminal 10. The PCL may be stored in the presence XDMS 420.

  In another embodiment, since the communication terminal 10 accesses the Shared XDMS 410 at a timing when a user using the communication terminal 10 wants to refer to the PCL, the processing load of the Shared XDMS 410 and the network load increase due to an increase in communication traffic. There is. Therefore, the communication terminal 10 acquires the PCL from the Shared XDMS 410 at a predetermined time interval, and the communication terminal 10 stores the acquired PCL. Then, when a PCL display instruction is acquired from a user who uses the communication terminal 10, the communication terminal 10 displays the stored PCL on the display unit 110.

  The communication terminal 10 transmits an XCAP Get message to the aggregation proxy 400. The message is transferred to Shared XDMS 410 in which the communication terminal 10 writes reference request information indicating which of the plurality of communication terminals 10 wants to refer to the presence information of which communication terminal 10. During the initial client operation of the communication terminal 10, since the presence information regarding the communication terminal 10 is not stored in the Shared XDMS 410, the Shared XDMS 410 transmits an error message to the communication terminal 10. When receiving an error message, the communication terminal 10 transmits an XCAP PUT message to the Shared XDMS 410 in order to construct PCL basic information in the Shared XDMS 410 according to the error message. When the XCAP PUT message is normally received from the communication terminal 10, the Shared XDMS 410 transmits 200 OK to the communication terminal 10.

  Subsequently, the communication terminal 10 transmits an XCAP Get message to the aggregation proxy 400. The message is transferred to the Presentation XDMS 420 that writes the block rule of presence information. The presence XDMS 420 transmits an error message to the communication terminal 10. When receiving an error message from the presence XDMS 420, the communication terminal 10 transmits an XCAP PUT message to the presence XDMS 420 via the aggregation proxy 400. When the XCAP PUT message is normally received from the communication terminal 10, the presence XDMS 420 transmits 200 OK to the communication terminal 10.

  Next, the operation of acquiring the Presence List is executed. That is, the communication terminal 10 transmits an XCAP Get message to the aggregation proxy 400. The message is transferred to the RLS XDMS 430 that writes which communication terminal 10 is to deliver the presence information. The RLS XDMS 430 transmits an error message to the communication terminal 10. When receiving an error message from the RLS XDMS 430, the communication terminal 10 transmits an XCAP PUT message to the RLS XDMS 430 via the aggregation proxy 400. When the RLS XDMS 430 normally receives the XCAP PUT message from the communication terminal 10, the RLS XDMS 430 transmits 200 OK to the communication terminal 10.

  This eliminates the need to support the information management monitoring function in the XDMS using the SIP Core 440, and the predetermined processing can be distributed and executed in each of the aggregation proxy 400, the shared XDMS 410, the presence XDMS 420, and the RLS XCMS 430.

  FIG. 6 shows an example of the hardware configuration of the communication terminal 10 and the server system 20 according to the present embodiment. The communication terminal 10 and the server system 20 according to the present embodiment include a CPU peripheral unit having a CPU 1505, a RAM 1520, a graphic controller 1575, and a display device 1580 connected to each other by a host controller 1582, and a host by an input / output controller 1584. An input / output unit having a communication interface 1530, a hard disk drive 1540, and a CD-ROM drive 1560 connected to the controller 1582; a ROM 1510, a flexible disk drive 1550, and an input / output chip 1570 connected to the input / output controller 1584; A legacy input / output unit.

  The host controller 1582 connects the RAM 1520 to the CPU 1505 and the graphic controller 1575 that access the RAM 1520 at a high transfer rate. The CPU 1505 operates based on programs stored in the ROM 1510 and the RAM 1520 to control each unit. The graphic controller 1575 acquires image data generated by the CPU 1505 or the like on a frame buffer provided in the RAM 1520 and displays the image data on the display device 1580. Alternatively, the graphic controller 1575 may include a frame buffer that stores image data generated by the CPU 1505 or the like.

  The input / output controller 1584 connects the host controller 1582 to the communication interface 1530, the hard disk drive 1540, and the CD-ROM drive 1560, which are relatively high-speed input / output devices. The communication interface 1530 communicates with other devices via a network. The hard disk drive 1540 stores programs and data used by the communication terminal 10 and the CPU 1505 in the server system 20. The CD-ROM drive 1560 reads a program or data from the CD-ROM 1595 and provides it to the hard disk drive 1540 via the RAM 1520.

  The input / output controller 1584 is connected to the ROM 1510, the flexible disk drive 1550, and the relatively low-speed input / output device of the input / output chip 1570. The ROM 1510 stores a boot program executed when the communication terminal 10 and the server system 20 are started, a program depending on the hardware of the communication terminal 10 and the server system 20, and the like. The flexible disk drive 1550 reads a program or data from the flexible disk 1590 and provides it to the hard disk drive 1540 via the RAM 1520. The input / output chip 1570 connects various input / output devices via a flexible disk drive 1550 such as a parallel port, a serial port, a keyboard port, and a mouse port.

  A communication program provided to the hard disk drive 1540 via the RAM 1520 is stored in a recording medium such as the flexible disk 1590, the CD-ROM 1595, or an IC card and provided by the user. The communication program is read from the recording medium, installed in the communication terminal 10 and the hard disk drive 1540 in the server system 20 via the RAM 1520, and executed by the CPU 1505. The communication program installed and executed in the communication terminal 10 and the server system 20 works on the CPU 1505 or the like to indicate the communication terminal 10 and the server system 20 to the terminal side communication unit 100 and the display unit 110 described with reference to FIGS. , Display control unit 112, stop notification unit 114, voice output unit 116, display instruction input unit 118, communication establishment control unit 120, position information acquisition unit 130, communication amount measurement unit 140, communication amount storage unit 142, establishment cycle determination unit 150, server-side communication unit 200, reconnection program selection control unit 210, period determination unit 215, reconnection program storage unit 220, status information transmission / reception control unit 230, status information storage unit 240, and prohibition / permission information storage unit 250 Make it work.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

1 is a schematic diagram of a communication terminal 10. FIG. 2 is a block diagram showing a functional configuration of a communication terminal 10. FIG. 4 is a flowchart showing a flow of processing in the communication terminal 10. 2 is a block diagram showing a functional configuration of a server system 20. FIG. 1 is a diagram illustrating an architecture of a server system 20. FIG. 2 is a block diagram illustrating a hardware configuration of a communication terminal 10. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Communication terminal 20 Server system 22 SIP server 24 Presence server 100 Terminal side communication unit 102 Status information acquisition part 104 Warning information reception part 106 Reconnection program reception part 108 Data transmission / reception part 110 Display part 112 Display control part 114 Stop notification part 116 Voice Output unit 118 Display instruction input unit 120 Communication establishment control unit 130 Position information acquisition unit 140 Communication amount measurement unit 142 Communication amount storage unit 150 Establishment cycle determination unit 200 Server side communication unit 201 Data transmission / reception unit 202 Status information transmission / reception unit 203 Inhibition / permission Information reception unit 204 Reconnection program transmission unit 205 Warning information transmission unit 206 Terminal position information acquisition unit 210 Reconnection program selection control unit 215 Period determination unit 220 Reconnection program storage unit 230 Status information Reception control unit 240 the status information storage unit 250 enable / disable information storage unit 400 Aggregation Proxy
410 Shared XDMS
420 Presence XDMS
430 RLS XDMS
440 SIP Core
500, 510 Icon 1505 CPU
1510 ROM
1520 RAM
1530 Communication interface 1540 Hard disk drive 1550 Flexible disk drive 1560 CD-ROM drive 1570 Input / output chip 1575 Graphic controller 1580 Display device 1582 Host controller 1584 Input / output controller 1590 Flexible disk 1595 CD-ROM

Claims (10)

A communication terminal that acquires and displays status information indicating the status of a user of another communication terminal,
A status information acquisition unit that acquires status information from an external communication control device that manages the status information;
A display unit for displaying the status indicated by the status information acquired by the status information acquisition unit;
A warning information receiving unit that receives warning information indicating that the communication connection between the communication terminal and the communication control device is disconnected, from the communication control device;
When the warning information receiving unit receives the warning information, a stop notification unit that notifies the user of the communication terminal of a stop notification indicating that the status information acquisition unit cannot acquire status information;
A communication establishment control unit for reconnecting communication between the communication terminal and the communication control device after the communication connection between the communication terminal and the communication control device is disconnected;
The status information acquisition unit newly acquires status information from the communication control device after the communication between the communication terminal and the communication control device is reconnected,
The display unit is a communication terminal that displays a status indicated by status information newly acquired by the status information acquisition unit after the communication between the communication terminal and the communication control device is reconnected. The warning information receiving unit receives the warning information including the latest status information of the user of the other communication terminal,
The status information acquisition unit acquires the latest status information from the warning information received by the warning information reception unit,
When the display unit is instructed to display status information by the user of the communication terminal from when the communication connection between the communication terminal and the communication control device is disconnected until the display is reconnected, The communication terminal according to claim 1, wherein the status indicated by the latest status information acquired by the status information acquisition unit is displayed. The communication establishment control unit reconnects communication between the communication terminal and the communication control device to the other communication terminal after the communication connection between the communication terminal and the communication control device is disconnected. The communication terminal according to claim 1, wherein the communication terminal performs a predetermined period for the communication terminal, which is different from a predetermined period. A traffic volume storage unit for storing the traffic volume of the communication terminal;
An establishment cycle determining unit that determines a cycle in which the communication establishment control unit performs reconnection of communication between the communication terminal and the communication control device according to the communication amount stored in the communication amount storage unit; Prepared,
The communication terminal according to claim 3, wherein the communication establishment control unit reconnects communication between the communication terminal and the communication control device at a cycle determined by the establishment cycle determination unit. 5. The communication terminal according to claim 4, wherein the establishment cycle determination unit determines a shorter reconnection cycle when the communication amount stored in the communication amount storage unit is larger. The communication establishment control unit reconnects communication between the communication terminal and the communication control device to the other communication terminal after the communication connection between the communication terminal and the communication control device is disconnected. The communication terminal according to claim 1, wherein the communication terminal is performed at a predetermined time for the communication terminal, which is different from the predetermined time. A position information acquisition unit that acquires position information indicating a position where the communication terminal exists;
The communication establishment control unit performs reconnection of communication between the communication terminal and the communication control device in a cycle that is associated in advance with a position indicated by the position information acquired by the position information acquisition unit. Communication terminal. A position information acquisition unit that acquires position information indicating a position where the communication terminal exists;
The communication establishment control unit performs reconnection of communication between the communication terminal and the communication control device at a time associated in advance with a position indicated by the position information acquired by the position information acquisition unit. Communication terminal. A communication method for acquiring status information indicating a status of a user of another communication terminal and displaying the status information on the communication terminal,
A status information acquisition stage for acquiring status information from an external communication control device that manages the status information;
A display stage for displaying the status indicated by the status information acquired in the status information acquisition stage on a display unit;
Warning information receiving stage for receiving warning information indicating that communication connection between the communication terminal and the communication control device is disconnected from the communication control device;
When receiving the warning information in the warning information receiving step, a stop notification step for notifying the user of the communication terminal of a stop notification indicating that status information cannot be acquired in the status information acquisition step;
A communication establishment control stage for performing reconnection of communication between the communication terminal and the communication control device after the communication connection between the communication terminal and the communication control device is disconnected;
The status information acquisition step newly acquires status information from the communication control device after the communication between the communication terminal and the communication control device is reconnected,
The said display part is a communication method which displays the status which the status information newly acquired in the said status information acquisition step shows after the communication with the said communication terminal and the said communication control apparatus is reconnected. A communication program for a communication terminal that acquires and displays status information indicating the status of a user of another communication terminal, wherein the communication terminal is
A status information acquisition unit that acquires status information from an external communication control device that manages the status information;
A display unit for displaying the status indicated by the status information acquired by the status information acquisition unit;
A warning information receiving unit that receives warning information indicating that the communication connection between the communication terminal and the communication control device is disconnected, from the communication control device;
When the warning information receiving unit receives the warning information, a stop notification unit that notifies the user of the communication terminal of a stop notification indicating that the status information acquisition unit cannot acquire status information;
After the communication connection between the communication terminal and the communication control device is disconnected, the communication terminal and the communication control device function as a communication establishment control unit that reconnects the communication,
After the communication between the communication terminal and the communication control device is reconnected to the status information acquisition unit, the status information acquisition unit newly acquires status information from the communication control device,
A communication program for causing the display unit to display a status indicated by status information newly acquired by the status information acquisition unit after the communication between the communication terminal and the communication control device is reconnected.

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