JP2007150424A - Wireless communication apparatus, wireless communication system, and communication control method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wireless communication apparatus such as a wireless communication apparatus adopting the PDC system capable of selecting either of voice communication and a packet communication, for execution, which prevents the communication with a packet communication destination from being terminated even when the wireless communication apparatus permits the arrival of the voice communication during the packet communication. <P>SOLUTION: When the mobile phone terminal (wireless communication apparatus) 1 permits the arrival of voice communication from a phone terminal 3 of a third party through a line exchange communication network 2 during the packet communication with an application processing apparatus 5 through a packet switch communication network 4, mobile phone terminal 1 outputs a hold signal for interrupting the processing associated with the packet communication to the application processing apparatus 5 via the packet switch communication network 4 and releases the hold signal when the voice communication ends. Thus, the packet communication is not terminated, but suspended so that the time up to the communication end can be reduced. Further, only by transferring the data uncompleted after the restart, the communication charge and unnecessary traffic can be suppressed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a wireless communication device, a wireless communication system, and a communication control method thereof, and more particularly, the wireless communication device is a voice communication through a circuit-switched communication network such as a PDC (Personal Digital Cellular) mobile phone terminal, The present invention relates to a response when an incoming voice call is permitted during packet communication, in which one of packet communication via a packet switching communication network can be selected and performed (both cannot be performed simultaneously).

As described above, a PDC mobile phone terminal is connected to an application processing device such as a third-party telephone terminal and a personal computer via a communication network using a circuit switching method and a packet switching method. Communication is possible. An internet communication protocol is used for the packet communication. In a mobile phone terminal having such a voice call function and a data communication function by packet communication, as shown in Patent Document 1, a data communication state is stored between the packet-switched communication network and the mobile phone terminal, and the voice communication function is used. By notifying the packet-switched communication network from the mobile phone terminal so that it is restored to the saved state after the call ends, the voice call from the third party is preferentially accepted during data communication, and the voice call is started. As soon as is completed, the communication line of the packet-switched communication network can be restored again.
Japanese translation of PCT publication No. 2002-520962

  However, when the mobile phone terminal performs data communication with the application processing device using the Internet communication protocol via the mobile phone communication network as described above, the application processing device can perform a voice call while the mobile phone terminal is performing data communication. There is no means to detect that the switch has been made. For this reason, the application processing apparatus performs communication error processing as a communication timeout due to no response of data transmitted to the communication terminal, and the application shifts to a communication end state.

  As a result, a state mismatch with the application processing of the mobile phone terminal occurs, and even if the communication line of the packet switched communication network resumes after the end of the voice call, the processing is stopped between the mobile phone terminal and the application processing device. There is a problem that the connection process must be started again from the initial state. For this reason, it takes a long time until the end of packet communication, and there is a problem in that data that must be transmitted once may be generated even if it has been transmitted once, resulting in an increase in communication charges and unnecessary traffic.

  An object of the present invention is to provide a wireless communication apparatus capable of reducing the time until the end of packet communication and suppressing communication charges and unnecessary traffic even if incoming voice communication is permitted during packet communication. And a wireless communication system and a communication control method thereof.

  The wireless communication apparatus of the present invention is a wireless communication apparatus that can selectively perform voice communication via a circuit-switched communication network and packet communication via a packet-switched communication network. A wireless communication unit that communicates with each other, a call processing unit that realizes the voice communication via the wireless communication unit, an information processing unit that realizes the packet communication via the wireless communication unit, and the wireless communication unit An application control unit that switches between the voice communication and the packet communication, and when the application control unit permits an incoming voice communication during the packet communication in the wireless communication unit, the wireless communication unit Outputs a hold signal that interrupts processing related to packet communication to the packet communication destination by the information processing unit via a packet-switched communication network , The voice communication ends, and cancels the hold signal.

  The communication control method of the present invention is a communication control method for selectively performing voice communication via a circuit-switched communication network and packet communication via a packet-switched communication network. When permitted, a hold signal for interrupting the processing related to packet communication is output to the packet communication destination, and when the voice communication ends, the hold signal is canceled.

  According to the above configuration, it is possible to select and perform either voice communication via a circuit-switched communication network or packet communication via a packet-switched communication network, such as a PDC wireless communication device (both In a wireless communication apparatus that cannot be performed simultaneously, a wireless communication unit that communicates with the circuit-switched communication network and the packet-switched communication network includes a call processing unit that includes a microphone, a speaker, and the like and realizes voice communication; An information processing unit such as a computer or a microcomputer is connected to an information processing unit that realizes packet communication, and the application control unit switches their communication method in the wireless communication unit. Furthermore, the application control unit receives voice communication during packet communication, and when receiving it, the application control unit relates to packet communication from the wireless communication unit to a packet communication destination by the information processing unit via a packet switching communication network. A hold signal for interrupting the process is output, and when the voice communication ends, the hold signal is canceled.

  Therefore, even if incoming voice communication is permitted during packet communication, packet communication between the information processing unit and the packet communication destination is not terminated, the line of the packet-switched communication network is maintained, and the communication state of the communication destination is When the voice communication is held while being paused and the voice communication is completed, the packet communication can be resumed without redoing the line connection processing or the like, so that the time until the completion of the packet communication can be shortened. In addition, after resuming, it is only necessary to transfer data that has not been communicated, and communication charges and unnecessary traffic can be suppressed.

  Furthermore, the wireless communication system of the present invention is a wireless communication system in which a wireless communication apparatus can selectively perform voice communication via a circuit-switched communication network and packet communication via a packet-switched communication network. When the communication device performs the packet communication, a call control device that relays data to and from a communication partner information processing device is provided, and the call control device includes the circuit-switched communication network and the packet-switched communication. From a network, a communication status acquisition unit that acquires a call connection status of a wireless communication device registered in advance, and an acquisition result of the communication status acquisition unit, the wireless communication device has permitted an incoming voice communication during packet communication Sometimes, the information processing apparatus outputs a hold signal that interrupts processing related to packet communication, and when voice communication ends, the connection signal that releases the hold signal is output. Characterized in that it comprises a status management unit.

  Further, the communication control method of the present invention is a communication control method for allowing a wireless communication apparatus to selectively perform voice communication via a circuit-switched communication network and packet communication via a packet-switched communication network. And a call control device that relays data transfer between the communication partner and the information processing device of the communication partner, and the call control device is registered in advance from the circuit-switched communication network and the packet-switched communication network. When a call connection state of a wireless communication device is acquired, and when the wireless communication device permits an incoming voice communication during packet communication, the information processing device outputs a hold signal for interrupting processing related to packet communication, and the voice communication When the operation is completed, the hold signal is canceled.

  According to the above configuration, the wireless communication device selects and performs either voice communication via the circuit-switched communication network or packet communication via the packet-switched communication network, such as a PDC wireless communication device. In a wireless communication system capable of performing both of the above (cannot perform both simultaneously), when the wireless communication device performs the packet communication, a call control device that relays data to and from a communication partner information processing device Is provided. And this call control device acquires the call connection state of the wireless communication device in which the terminal ID, the telephone number, etc. are registered in advance from the circuit switching communication network and the packet switching communication network in the communication status acquisition unit, and the acquisition result Then, when the connection status management unit permits the arrival of voice communication during the packet communication of the wireless communication device, the connection status management unit outputs a hold signal for interrupting the processing related to the packet communication to the information processing device, and when the voice communication ends, Release the hold signal. That is, when the wireless communication device permits an incoming voice communication during packet communication, the call control device outputs a hold signal on behalf of the wireless communication device and causes the information processing device to suspend processing related to packet communication. .

  Therefore, even if the incoming voice communication is permitted during the packet communication, the packet communication between the wireless communication apparatus and the information processing apparatus is not terminated, the line of the packet switching network is maintained, and the communication of the information processing apparatus The state is held in a suspended state, and when voice communication is completed, packet communication can be resumed without redoing line connection processing or the like, so that the time until the end of packet communication can be shortened. In addition, after resuming, it is only necessary to transfer data that has not been communicated, and communication charges and unnecessary traffic can be suppressed.

  Still further, in the configuration of the wireless communication device and the information processing device, if the wireless communication device permits incoming voice communication during packet communication, the line of the packet switching network is disconnected, and the information processing device uses packet communication. The packet communication is terminated by the time-out processing of the conventional configuration, and no change is required, and it is only necessary to change the other party of the packet communication to the call control device. Suitable for use.

  Furthermore, in the wireless communication system of the present invention, the call control device includes a storage unit that stores data transferred from the information processing device to the wireless communication device, and the connection status management unit is configured such that the wireless communication device is a voice. After allowing the incoming call, the connection status management unit transmits the hold signal to the information processing device and receives a response signal indicating that the hold signal has been received from the information processing device. Data transferred from the device to the wireless communication device is stored in the storage unit, and after the wireless communication device ends voice communication and returns to packet communication, the data stored in the storage unit is transferred to the wireless communication device. The hold signal is canceled after the transmission is completed.

  According to the above configuration, as described above, the connection status management unit of the call control device detects that the wireless communication device has permitted an incoming voice communication from packet communication by the communication status acquisition unit, and then performs information processing. Outputs a hold signal to the device and interrupts the processing related to packet communication, but the connection status management unit outputs the hold signal, and then the information processing device accepts it and actually stops the data transfer. Response delay occurs with respect to the received data. Therefore, a storage unit for temporarily storing this data is provided in the call control device, and the connection status management unit is a response signal indicating that the wireless communication device has accepted a voice signal and has received a hold signal from the information processing device. Until data is transferred from the information processing device to the wireless communication device, the storage unit stores the data, and after the wireless communication device finishes voice communication and returns to packet communication, The stored data is transmitted to the wireless communication device, and the hold signal is canceled after the transmission is completed.

  Therefore, data loss due to the response delay can be reliably prevented.

  As described above, the wireless communication device and the communication control method thereof according to the present invention are one of voice communication via a circuit-switched communication network and packet communication via a packet-switched communication network, such as a PDC wireless communication device. In a wireless communication device that can be selected (cannot perform both simultaneously), a wireless communication unit that communicates with the circuit-switched communication network and the packet-switched communication network includes a microphone, a speaker, and the like, A call processing unit that realizes voice communication and an information processing unit that realizes packet communication such as a personal computer or a microcomputer are connected, and an application control unit switches between the communication methods in the wireless communication unit, and the application The control unit receives the voice communication during the packet communication and receives the voice communication. Via the packet switched communication network from the communication unit, the packet communication destination by the information processing unit, and outputs a hold signal to interrupt the process for the packet communication, the voice communication ends, releasing the hold signal.

  Therefore, even if incoming voice communication is permitted during packet communication, packet communication between the information processing unit and the packet communication destination is not terminated, the line of the packet switching communication network is maintained, and the communication state of the communication destination Is held in a suspended state, and when voice communication is completed, packet communication can be resumed without redoing line connection processing or the like, so that the time until completion of packet communication can be shortened. In addition, after resuming, it is only necessary to transfer data that has not been communicated, and communication charges and unnecessary traffic can be suppressed.

  Furthermore, in the wireless communication system and the communication control method thereof according to the present invention, as described above, the wireless communication apparatus can perform voice communication and packet-switched communication via a circuit-switched communication network, such as a PDC wireless communication apparatus. In a wireless communication system that can select one of packet communication via a network and cannot perform both at the same time, when the wireless communication device performs the packet communication, Is provided with a call control device for relaying and transferring data, and this call control device is preregistered with a terminal ID, a telephone number, etc. from the circuit-switched communication network and the packet-switched communication network in the communication status acquisition unit. The call connection state of the wireless communication device is acquired, and from the acquisition result, the connection status management unit receives an incoming voice communication while the wireless communication device is performing packet communication. When you allow outputs a hold signal to interrupt the process for the packet communication to the information processing apparatus, when the voice communication ends, releasing the hold signal.

  Therefore, even if the incoming voice communication is permitted during the packet communication, the packet communication between the wireless communication apparatus and the information processing apparatus is not terminated, the line of the packet switching network is maintained, and the information processing apparatus The communication state is held in a suspended state, and when the voice communication is completed, the packet communication can be resumed without redoing the line connection process or the like, so that the time until the end of the packet communication can be shortened. In addition, after resuming, it is only necessary to transfer data that has not been communicated, and communication charges and unnecessary traffic can be suppressed.

[Embodiment 1]
FIG. 1 is a diagram showing a configuration of a wireless communication system using a mobile phone terminal 1 which is a wireless communication apparatus according to an embodiment of the present invention. This cellular phone terminal 1 is a data communication terminal with a voice call function of the PDC system, and can perform voice communication with a third party telephone terminal 3 via a circuit switching communication network 2 and via a packet switching communication network 4. Thus, packet communication with the application processing apparatus 5 such as a personal computer on the Internet line 6 is possible and can be selectively performed (cannot be performed simultaneously).

  The mobile phone terminal 1 has a built-in GPS (Global Positioning System) receiver. When the mobile phone terminal 1 goes out of a predetermined area every predetermined time, in response to a user operation or an application processing device. In response to the position search request from 5, the current position is measured, and the positioning result is notified to the application processing apparatus 5 installed in the management center or the like as an application message format.

  FIG. 2 is a block diagram showing a functional configuration of the mobile phone terminal 1. The cellular phone terminal 1 includes a wireless communication unit 11, a call processing unit 12, an outgoing / incoming operation unit 13, an application control unit 14, a display unit 15, a GPS control unit 16, and a database 17. Is done.

  The wireless communication unit 11 can perform wireless communication via the circuit-switched communication network 2 and the packet-switched communication network 4 of the mobile phone as described above, and includes a wireless channel control unit 18 and a PDC wireless communication control unit 19. Configured. The PDC radio communication control unit 19 selects which radio channel is to be used from among the radio channels that can be used for the base station on which the mobile phone terminal 1 is waiting, and in the selected radio channel, the radio channel control unit 18 To send and receive.

  The call processing unit 12 includes a microphone, a speaker, and the like, converts an analog audio signal from the microphone into a digital signal suitable for the circuit switching communication network 2 of the PDC, and transmits the digital signal from the radio channel control unit 18. The audio digital signal received by the wireless channel control unit 18 is restored to an analog audio signal and output from the speaker.

  The outgoing / incoming operation unit 13 includes a numeric keypad and various function buttons, and performs operations for outgoing / incoming voice communication. The application control unit 14 performs data communication with the application processing apparatus 5 via the packet switching communication network 4.

  The GPS control unit 16 includes the GPS receiver, stores the positioning result in the database 17, and transmits the positioning result from the application control unit 14 to the application processing device 5 via the wireless channel control unit 18. Further, satellite orbit information from the application processing device 5 necessary for positioning is received from the wireless channel control unit 18 via the application control unit 14 and stored in the database 17.

  FIG. 3 is a block diagram showing a functional configuration of the application processing apparatus 5. The application processing apparatus 5 includes a communication control unit 21, an application control unit 22, a location processing unit 23, a database 24, a man-machine control unit 25, a display unit 26, and an operation unit 27. .

  The communication control unit 21 communicates with the mobile phone terminal 1 via the Internet line 6. The location processing unit 23 stores the position search request to the mobile phone terminal 1 as described above and the measured current position in the database 24 and draws the map on the map screen read from the database 24. The location information terminal performs location processing such as responding to an inquiry from a guardian of a user who owns the mobile phone terminal 1 or acquiring the satellite orbit information from a signal from a GPS satellite and storing it in the database 24.

  The man-machine control unit 25 uses the display unit 26 and the operation unit 27 to send a position search request to the mobile phone terminal 1 or to display the current position on the map screen. Interface. The application control unit 22 controls the various applications in the application processing apparatus 5.

  FIG. 4 is a diagram for explaining a position search communication sequence in the wireless communication system of the present embodiment. When the application processing device 5 starts a search service for searching the location of the mobile phone terminal 1, the application control unit 22 sends a message indicating the IP address or mobile device identification number of the destination mobile phone terminal 1 and a location search request. An identifier and a search timeout time (in seconds) are set.

  After starting the service, the application control unit 22 calls the target mobile phone terminal 1 to the PDC packet-switched communication network 4 using the IP address or the mobile device identification number, and starts a search timeout monitoring timer. The PDC network notifies the corresponding mobile phone terminal 1 that a packet has arrived. The mobile phone terminal 1 that has received the incoming packet uses the PDC wireless communication control unit 19 to complete the packet connection and the PPP connection. Subsequently, the message received from the application processing device 5 is a location search message. When the application control unit 14 recognizes it, the GPS control unit 16 starts GPS positioning.

  When a voice call is made to the mobile phone terminal 1 from another third party during the GPS positioning, an incoming voice call is notified from the PDC network to the mobile phone terminal 1. Correspondingly, when the user operates the outgoing / incoming operation unit 13 to allow incoming voice calls, it should be noted that in the present embodiment, the application control unit 14 starts from the radio channel control unit 18. A message for notifying the suspension of the position search process is transmitted to the application processing apparatus 5 and the communication channel of the packet-switched communication network 4 is temporarily put on hold by the radio channel control unit 18. After the transmission, the application control unit 14 notifies the radio channel control unit 18 of the incoming call permission, and the radio channel control unit 18 shifts the packet communication to the hold state and then makes a voice call by the circuit switching communication network 2. And switch the radio channel. On the other hand, after receiving the pause message of the location search process from the mobile phone terminal, the application processing device 5 shifts the process to the pause state and stops the timeout monitoring timer related to the application communication control.

  When the terminal user's voice call is terminated, the wireless channel control unit 18 resumes the packet communication that is on hold, and the voice call is terminated to the application control unit 14 so that the pending packet communication can be resumed. Notify that. In response to this, the application control unit 14 transmits a position search process restart notification message to the application processing apparatus 5 and also restarts the positioning process by the GPS control unit 16. After receiving the restart notification message from the mobile phone terminal 1, the application processing device 5 changes the process from the paused state to the active state, and shifts to a waiting state for receiving a search result from the mobile phone terminal 1.

  When positioning of the built-in GPS receiver is successful and the location information is acquired, the mobile phone terminal 1 sets the location information in the search response message and transmits the location information to the application processing device 5. If there are no other services to be processed, a communication end request message is transmitted to the application processing apparatus 5. The application processing device 5 receives the search result message from the mobile phone terminal 1, acquires the position information of the terminal from the message, refers to the map data, and displays the position of the terminal on the map. Further, a communication end response message is returned in response to the communication end request message. When the mobile phone terminal 1 receives this communication end response message, the application control unit 14 causes the wireless channel control unit 18 to disconnect the line of the packet-switched communication network 4 and then shifts to a standby state.

  FIG. 5 is a processing flow in the mobile phone terminal 1, and FIG. 6 is a processing flow in the application processing apparatus 5. When the service is started, the application control unit 22 of the application processing device 5 waits until a location search request is generated in step S1, and when it is generated, the target mobile phone terminal 1 is called in step S2, and a search timeout is performed in step S3. Start counting the monitoring timer.

  The cellular phone terminal 1 waits until the position search request message is received from the packet-switched communication network 4 in step P1, and if received, moves to step P2 to turn on the GPS receiver and start GPS positioning. In step P3, the search timeout monitoring timer starts counting.

  If an event occurs in step P4 and it is a voice incoming call, the process proceeds to step P5. When the voice incoming call is permitted by the operation of the outgoing / incoming operation unit 13, the GPS receiver is temporarily turned off in step P6. In step P7, the search timeout monitoring timer is stopped.

  In step P8, it is determined whether or not the voice call is ended, that is, whether or not the packet communication should be resumed. When the voice call is continued, this step P8 is repeated, and when the packet communication is resumed, the step is repeated. Move on to P9. In step P9, the GPS receiver is turned ON again. In step P10, the search timeout monitoring timer is restarted and the process returns to step P4.

  At this time, in the application processing apparatus 5, if some event occurs in step S4 and it is reception of a pause message for position search processing by voice reception on the mobile phone terminal 1, the process proceeds to step S5, and the search timeout monitoring timer is set. In step S6, the count is temporarily stopped. In step S6, the process waits until a notification message for resuming the position search process due to the end of the voice call is received. .

  In the cellular phone terminal 1, when the event that occurred in step P4 is a successful GPS positioning, the process proceeds to step P11, the GPS receiver is turned off to end the GPS positioning, and the search timeout monitoring timer count in step P12. To stop. In Step P13, the search result message including the position information is transmitted.

  As a result, in the application processing apparatus 5, when the event that occurred in step S4 is reception of a search result message, the process proceeds to step S10, the count of the search timeout monitoring timer is stopped, and position information is acquired in step S11. If it displays on the map screen of the display part 26 by step S12, the termination process which transmits the communication termination request | requirement of packet communication will be performed by step S13, and a process will be complete | finished. If the event that occurred in step S4 is the timeout of the search timeout monitoring timer, the communication is terminated in step S13, and the process is terminated.

  In addition, when the mobile phone terminal 1 receives a communication end request in step P14, the mobile phone terminal 1 performs a communication end process, and in step P15 disconnects the line and ends the process. When the event that occurred in step P4 is the timeout of the search timeout monitoring timer, the process proceeds to step P21, where the GPS receiver is turned off to complete the GPS positioning, and the search timeout monitoring timer count is stopped in step P22. In step P23, the search result message including information indicating that positioning could not be performed is transmitted. When a communication end request is received in step P24, a communication end process is performed, and in step P15, the line is disconnected and the process ends.

  With this configuration, even if the incoming voice communication is permitted during the packet communication, the packet communication between the application control unit 14 and the application processing device 5 is not terminated, and the line of the packet switching communication network 4 is maintained. At the same time, the communication state of the application processing device 5 is held in a suspended state. When the voice communication is completed, the packet communication can be resumed without redoing the line connection process. Can be shortened. In addition, after resuming, it is only necessary to transfer data that has not been communicated, and communication charges and unnecessary traffic can be suppressed.

[Embodiment 2]
FIG. 7 is a diagram showing a configuration of a wireless communication system according to another embodiment of the present invention. This wireless communication system is similar to the above-described wireless communication system, and corresponding portions are denoted by the same reference numerals and description thereof is omitted. The circuit-switched communication network 2, the packet-switched communication network 4, and the application processing device 5 used in this embodiment are the same as those in the above-described embodiment, and the description thereof is omitted. It should be noted that in the present embodiment, when the mobile phone terminal 1a performs packet communication with the application processing device 5, the data is relayed and transferred between them, and instead of the mobile phone terminal 1a, the mobile phone terminal 1a That is, a call control device 31 that monitors the call connection state of the mobile phone terminal 1a and notifies the application processing device 5 of the state change is provided. For this reason, the mobile phone terminal 1 a and the application processing device 5 perform packet communication with the call control device 31.

  The mobile phone terminal 1 a is a data communication terminal with a voice call function of the PDC method, similar to the above-described mobile phone terminal 1, and is capable of voice communication with a third-party phone terminal 3 via the circuit-switched communication network 2. At the same time, packet communication with the call control device 31 is possible via the packet-switched communication network 4, and they can be selectively performed (cannot be performed simultaneously). The mobile phone terminal 1a is a position information terminal with a built-in GPS receiver. The difference from the mobile phone terminal 1 described above is that the positioning result can be notified as an application message format. 14 is that it does not have a function of transmitting a message for informing the suspension and resumption of the position search process, that is, it is an existing position information terminal.

  FIG. 8 is a block diagram showing a functional configuration of the call control device 31. The call control device 31 includes a PDC network communication control unit 32, databases 33 and 34, a terminal call connection state management unit 35, an application communication control unit 36, a communication path control unit 37, and a LAN communication control unit 38. It is prepared for.

  The PDC network communication control unit 32 acquires the call connection status of the mobile phone terminal 1a from the PDC networks 2 and 4 according to a contract with the telephone company of the mobile phone terminal 1a to be monitored. The acquired data is given from the communication path control unit 37 to the terminal call connection state management unit 35 via the application communication control unit 36 and stored in the database 33. On the other hand, message data to be transmitted to the application processing device 5 in place of the mobile phone terminal 1a is stored in the database 34, and the terminal call connection state management unit 35 changes the call connection state of the mobile phone terminal 1a. Sometimes, the corresponding message data is read from the database 34, notified to the application processing device 5, and transmitted from the communication path control unit 37 to the application processing device 5 through the LAN communication control unit 38 via the Internet line 6.

  Further, as will be described later, after the mobile phone terminal 1a is switched to the voice incoming call, the application processing device 5 is notified of this by a message, and the application processing device is put into a sleep state. The message data transmitted from the device 5 to the mobile phone terminal 1a is also temporarily stored in the database 36 and transferred after resuming packet communication.

  FIG. 9 is a diagram for explaining a position search communication sequence in the wireless communication system of the present embodiment. The operation of FIG. 9 is similar to the operation of FIG. 4 described above. When the application processing device 5 transmits a periodic positioning request to the mobile phone terminal 1a, the application control unit 22 sends an IP address or a mobile device identification number of the mobile phone terminal 1a as a destination, a message identifier indicating a location search request, The monitoring timeout time (in seconds) is set.

  After starting the service, the application control unit 22 calls the target mobile phone terminal 1 with the IP address or the mobile device identification number to the call control device 31 via the Internet line 6 and starts a monitoring timeout monitoring timer. The call request is transmitted from the call control device 31 to the target mobile phone terminal 1a through the packet switching communication network 4 of the PDC. The mobile phone terminal 1a that has received the incoming packet uses the PDC wireless communication control unit 19 to complete the packet connection and the PPP connection, and subsequently, the location search from the application processing device 5 relayed by the call control device 31. When the message is received, GPS positioning is started.

  In the mobile phone terminal 1a that has received the periodic positioning request message, the GPS receiver is turned on to start GPS positioning and to start counting the positioning time timer. Since the positioning result (position information) is notified from the built-in GPS receiver at a predetermined interval, it is overwritten and saved in the latest position information buffer in the database 17. The position information stored in the latest position information buffer at the time when the positioning time timer times out is set in the periodic positioning response message and transmitted to the application processing device 5.

  When a voice call is called from another party to the mobile phone terminal 1a while the positioning time timer is operating, the PDC communication networks 2 and 4 notify the mobile phone terminal 1a of an incoming voice call. The The application control unit 14a stops the GPS positioning (turns off the GPS receiver and interrupts the positioning time timer) when receiving the voice incoming call notification from the wireless channel control unit 18, and also the wireless channel control unit 18 Is instructed to accept incoming calls. In response to this, the radio channel controller 18 shifts the packet communication to the hold state, and then switches the radio channel to voice communication.

  At this time, the call control device 31 receives from the PDC networks 2 and 4 the PDC communication network control unit 32 that the mobile phone terminal 1a has received a voice call during packet communication by a voice call reception notification message. In response to this, the call control device 31 transmits a notification message for interrupting the service processing currently being processed from the LAN communication control unit 38 to the application processing device 5. In response to this message, the application processing device 5 shifts the periodic positioning application to a dormant state.

  After the terminal user's voice call ends, the wireless channel control unit 18 resumes the pending packet communication and notifies the application control unit 14a that the packet communication can be resumed. In response to this, the application control unit 14a turns on the GPS receiver, restarts the positioning time timer, and restarts the periodic positioning application.

  When the call control device 31 receives from the PDC networks 2 and 4 that the packet communication has been resumed upon termination of the voice call of the mobile phone terminal 1a, the call control device 31 transmits a status confirmation request to the mobile phone terminal 1a and sends it to the application processing device 5. In response, a communication resumption notification message is transmitted. In response to this, the application processing apparatus 5 restarts the periodic positioning application. Further, the cellular phone terminal 1 a returns a response to the state confirmation request to the call control device 31.

  When the positioning time timer of the mobile phone terminal 1a expires, the latest position information is set in the periodic positioning response message and transmitted to the call control device 31. Further, if there are no other services to be processed, a communication end request message is transmitted to the call control device 31. When the call control device 31 receives the periodic positioning response message, the call control device 31 transfers the message to the application processing device 5.

  The application processing device 5 acquires the position information of the mobile phone terminal 1a from the received periodic positioning response message, refers to the map data, and displays the position of the mobile phone terminal 1a on the map. Further, in response to the communication end request message transferred from the call control device 31, a communication end response message is transmitted to the mobile phone terminal 1a. After receiving the communication end response message, the cellular phone terminal 1a disconnects the packet line and shifts to a standby state.

  Furthermore, in the present embodiment, the status confirmation message from the application processing device 5 to the mobile phone terminal 1a within the switching time until the application processing device 5 is notified that the mobile phone terminal 1a has put packet communication on hold. When a certain message such as is transmitted, the call control apparatus 31 receives the message transmission failure and accumulates it in the database 34 as an untransmitted message as described above. When it is detected that the voice call of the mobile phone terminal 1a is finished and the packet communication is resumed, the call control device 31 transmits an unsent status confirmation message or the like to the mobile phone terminal 1a. In the mobile phone terminal 1a, after the application control unit 14 receives this message, a state response message in which various state information of the mobile phone terminal 1a (processing state = in-progress positioning / battery remaining value) is set is sent to the call control device. It is transmitted to the application processing apparatus 5 via 31.

  FIG. 10 is a processing flow in the mobile phone terminal 1 a, and FIG. 11 is a processing flow in the application processing device 5. The operation of the application processing device 5 is similar to the operation shown in FIG. 6 described above, and the name of the timer is changed from the search timeout monitoring timer to the monitoring timeout monitoring timer, and from an arbitrary position search request to a periodic positioning instruction. The same step number is indicated with a suffix a, and the description thereof is omitted.

  The operation of the mobile phone terminal 1a is similar to the operation shown in FIG. 5 described above, and the name of the timer is changed from the search timeout monitoring timer to the positioning time timer. That is, in the above-described embodiment, when the positioning is successful in step P4, the process proceeds to the end process after step P11. In the present embodiment, positioning is performed over a predetermined positioning time, The latest value obtained within the positioning time is used as information on the current position.

  Therefore, when the positioning time timer expires in step P4a, the process proceeds to step P21a, where the GPS receiver is turned off and the GPS positioning is ended. In step P23a, the latest position information is transmitted when positioning is possible, and a response message including information indicating that positioning is not possible is transmitted when the positioning is not possible. Thereafter, when a communication end request is received in step P24a, a communication end process is performed. In step P15a, the line is disconnected and the process ends.

  On the other hand, if a communication end request is received from the call control device 31 before the positioning time timer expires in step P4a, the GPS receiver is turned off in step P31a to end GPS positioning, and positioning is performed in step P32a. Stop counting the time timer. Thereafter, a communication end response is transmitted in step P34a, the line is disconnected in step P15a, and the process ends.

  In this way, the packet communication interruption / resumption notification function is disconnected from the application control unit 14a of the mobile phone terminal 1a, and is executed by the call control device 31, so that the mobile phone terminal 1a can be used. Even if the terminal 1a permits the incoming voice communication during the packet communication, the time until the end of the packet communication can be shortened. In addition, after resuming, it is only necessary to transfer data that has not been communicated, and communication charges and unnecessary traffic can be suppressed. Furthermore, even if a positioning request is issued to the mobile phone terminals 1a in a specific area at the same time due to the appearance of a suspicious person, the responses are not concentrated on the application processing device 5, and the location information of each mobile phone terminal 1a is surely obtained. Can be obtained.

  Furthermore, the call control device 31 is in the state of the mobile phone terminal 1a from the application processing device 5 within the switching time until the application processing device 5 is notified that the mobile phone terminal 1a has put the packet communication on hold. When a message such as a confirmation message is transmitted, it is transmitted after receiving a failed transmission of the message and storing it in the database 34 as an untransmitted message, after the voice call of the mobile phone terminal 1a is terminated and packet communication is resumed. Therefore, it is possible to reliably prevent the data transmitted during the switching time from being lost.

  In addition, when the mobile phone terminal 1a receives a voice call due to a call from a third party while the mobile phone terminal 1a is performing packet communication (during the periodical positioning service), the mobile phone terminal 1a puts the packet communication on hold as described above. When a voice call is started, a voice incoming call reception notification notified from the PDC communication networks 2 and 4 to the call control device 31 is transferred to the application processing device 5, but the application communication control of the application processing device 5 receiving it is received. The unit 36 may transmit a communication end request to the mobile phone terminal 1a in order to forcibly end the periodic positioning service currently being executed.

  In this case, since the voice call channel is valid, the message cannot be delivered to the mobile phone terminal 1a. Therefore, the call control device 31 responds to a communication end request from the application processing device 5 on behalf of the mobile phone terminal 1a. A response message is generated and returned to the application processing apparatus 5. The application processing apparatus 5 that has received this shifts to a standby state as shown in step S4a to step S20 in FIG.

  On the other hand, the fact that the cellular phone terminal 1a resumes the packet communication in the hold state after the voice call is finished is notified from the PDC communication networks 2 and 4 to the call control device 31, and after receiving the notification, the call control device 31 Then, a communication termination request for the periodic positioning application is transmitted to the mobile phone terminal 1a. The mobile phone terminal 1a that has received it turns off the GPS receiver to stop the periodic positioning process, stops the positioning time timer, transmits a communication end response message, disconnects the packet line, and performs application processing. Is shifted to the standby state.

  With this configuration, even when a termination request is generated from the application processing device 5 in a situation where packet communication is not possible because the mobile phone terminal 1a is in a voice call, the call control device 31 processes as a proxy for the mobile phone terminal 1a. By responding the end message and transmitting the application end message when the packet communication of the mobile phone terminal 1a is resumed, the end processing on the mobile phone terminal 1a side can be normally completed. As a result, it is possible to reduce the influence on the system operation due to the inability to perform packet communication due to a voice call.

It is a figure which shows the structure of the radio | wireless communications system using the mobile telephone terminal which is a radio | wireless communication apparatus which concerns on one Embodiment of this invention. It is a block diagram which shows the functional structure of the said mobile telephone terminal. It is a block diagram which shows the functional structure of the application processing apparatus in the said radio | wireless communications system. It is a figure for demonstrating the position search communication sequence in the radio | wireless communications system of one Embodiment of this invention. 5 is a flowchart for explaining a processing operation in a mobile phone terminal that realizes the operation shown in FIG. 4. It is a flowchart for demonstrating the processing operation in the application processing apparatus which implement | achieves the operation | movement shown in FIG. It is a figure which shows the structure of the radio | wireless communications system which concerns on other embodiment of this invention. It is a block diagram which shows the functional structure of a call control apparatus. It is a figure for demonstrating the position search communication sequence in the radio | wireless communications system of other embodiment of this invention. 10 is a flowchart for explaining a processing operation in the mobile phone terminal that realizes the operation shown in FIG. 9. It is a flowchart for demonstrating the processing operation in the application processing apparatus which implement | achieves the operation | movement shown in FIG. It is a figure for demonstrating the other position search communication sequence in the radio | wireless communications system of other embodiment of this invention. It is a flowchart for demonstrating the processing operation in the application processing apparatus which implement | achieves the operation | movement shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,1a Mobile phone terminal 2 Circuit switching communication network 3 Telephone terminal 4 Packet switching communication network 5 Application processing device 6 Internet line 11 Wireless communication unit 12 Call processing unit 13 Calling / incoming operation unit 14 Application control unit 15 Display unit 16 GPS control Unit 17 Database 18 Radio channel control unit 19 PDC radio communication control unit 21 Communication control unit 22 Application control unit 23 Location processing unit 24 Database 25 Man machine control unit 26 Display unit 27 Operation unit 31 Call control device 32 PDC network communication control unit 33 , 34 Database 35 Terminal call connection state management unit 36 Application communication control unit 37 Communication path control unit 38 LAN communication control unit

Claims (5)

In a wireless communication apparatus capable of selectively performing voice communication via a circuit-switched communication network and packet communication via a packet-switched communication network,
A wireless communication unit that communicates with the circuit-switched communication network and the packet-switched communication network;
A call processing unit for realizing the voice communication via the wireless communication unit;
An information processing unit for realizing the packet communication via the wireless communication unit;
An application control unit that switches between the voice communication and packet communication communication method in the wireless communication unit,
When the application control unit permits an incoming voice communication during the packet communication in the wireless communication unit, the application control unit relates to the packet communication from the wireless communication unit to the packet communication destination by the information processing unit via the packet switching communication network. A radio communication apparatus that outputs a hold signal for interrupting processing and cancels the hold signal when voice communication ends. In a wireless communication system in which a wireless communication device can selectively perform voice communication via a circuit-switched communication network and packet communication via a packet-switched communication network,
When the wireless communication device performs the packet communication, a call control device that relays data to and from a communication partner information processing device is provided, and the call control device includes:
A communication status acquisition unit for acquiring a call connection status of a wireless communication device registered in advance from the circuit switched communication network and the packet switched communication network;
From the acquisition result of the communication status acquisition unit, when the wireless communication device permits the arrival of voice communication during packet communication, the information processing device outputs a hold signal for suspending the processing related to packet communication, and the voice communication ends. Then, the wireless communication system characterized by including a connection status management unit for canceling the hold signal.   The call control device includes a storage unit that stores data transferred from the information processing device to the wireless communication device, and the connection status management unit allows the connection status management after the wireless communication device permits an incoming voice call. Data transmitted from the information processing device to the wireless communication device until the response signal indicating that the holding signal is received from the information processing device is transmitted to the information processing device. Store in the storage unit, after the wireless communication device finishes voice communication and returns to packet communication, transmits the data stored in the storage unit to the wireless communication device, and cancels the hold signal after transmission is completed The wireless communication system according to claim 2, wherein: In a communication control method for selectively performing voice communication via a circuit-switched communication network and packet communication via a packet-switched communication network,
A communication control characterized by outputting a hold signal for interrupting processing related to packet communication to the packet communication destination when an incoming voice communication is permitted during packet communication, and releasing the hold signal when the voice communication is completed. Method. In a communication control method for a wireless communication device to selectively perform voice communication via a circuit-switched communication network and packet communication via a packet-switched communication network,
A call control device that relays and transfers data is provided between the wireless communication device and the information processing device of the communication counterpart, and the call control device is connected to the circuit-switched communication network and the packet-switched communication network. A call connection state of a wireless communication device registered in advance is acquired, and when the wireless communication device permits an incoming voice communication during packet communication, a hold signal is output that causes the information processing device to suspend processing related to packet communication. Then, when the voice communication ends, the hold signal is canceled.

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