JP2011108013A - Mobile communication device, program update method, and program update service program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To more surely update a program of a mobile communication device to a new version one by a simple configuration. <P>SOLUTION: The mobile communication device 1 includes: a signal processing part 6 adding version information stored in a storage part to a signal for the establishing a link transmitted by a call control part 4; a signal monitoring part 7 acquiring version information included in signals transmitted by the communication between other mobile communication devices; a determination part 8 determining whether the version of the program is old or new by comparing the version information acquired by the signal monitoring part 7 with the version information stored in the storage part 5; and a transfer processing part 9 transferring the program to the mobile communication device transmitting the signal when the determination part 8 determines that the version shown by the version information acquired by the signal monitoring part 7 is older than that shown by the version information stored in the storage part 5. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a mobile communication device that performs communication via a wireless transmission path, a program update method, and a program update service program.

  A program (a program of the mobile communication device) installed in the mobile communication device may be updated in order to correct a defect in the mobile communication device or add a function. As a method of updating the program of the mobile communication device, the management server transfers the update program (new version program) to each of the mobile communication devices, or the update program is updated by downloading the update program from the management server. There is a method in which a mobile communication device transfers an update program to another mobile communication device.

  Patent Document 1 describes a program update method that distributes the processing load when updating a program. In the program update method described in Patent Document 1, in the local PHS system, the PHS communication apparatus that has received the update file including the distribution list data and the update program from the line controller has the program version of the own apparatus and the version of the update program. And updating the program as necessary, re-creates distribution list data from which the IP address of the own device is deleted, and transmits the update file to another PHS communication device.

  Patent Document 2 describes a program download method for updating a number of radio base station programs in a short time. In the program download method described in Patent Document 2, a PHS communication apparatus that has downloaded a new program transferred from the management server and updated the program becomes the master according to an instruction from the management server, and other unupdated PHS communication Update the device program.

Japanese Patent Laying-Open No. 2005-1557577 (paragraph 0017) JP 2000-188769 A (paragraph 0008, paragraph 0023)

  However, in the program update method described in Patent Document 1, when update of the program is interrupted in the PHS communication device, or when transfer fails due to a communication error while transferring the update file to another PHS communication device, Subsequent program updates will not be performed. Although it is possible to add a function for resending a download program, it is wasteful to implement a resend function in all PHS communication devices for a specific operation of program update.

  Further, in the program download method described in Patent Document 2, the management server designates a predetermined PHS communication device and gives an instruction to switch the PHS communication device to a program download master. It must be able to communicate with all the PHS communication devices on the premises, and it must be able to grasp the connection configuration of each PHS communication device and the program update status. Therefore, the management server is required to implement many functions.

  Accordingly, an object of the present invention is to provide a mobile communication device, a program update method, and a program update service program that update a program of a mobile communication device to a new version of a program more reliably with a simple configuration.

  The mobile communication device according to the present invention includes a call control unit that performs call control, a storage unit that stores a control program and version information indicating the version of the program, and a link establishment signal transmitted by the call control unit. A signal processing unit for adding version information stored in the storage unit, and a signal monitoring unit for monitoring a signal transmitted by communication between other mobile communication devices and acquiring version information included in the signal And the version information stored in the storage unit and the version information acquired by the signal monitoring unit to determine whether the program version is new or old, and the determination unit is acquired by the signal monitoring unit. If it is determined that the version indicated by the version information is older than the version indicated by the version information stored in the storage unit, Characterized in that a transfer processing unit for transferring the program to the call-originating mobile communication device.

  A program update method according to the present invention is a program update method for updating a program executed in a mobile communication device having a storage unit that stores a control program and version information indicating the version of the program, The version information stored in the storage unit is added to the signal for monitoring the signal transmitted by communication between other mobile communication devices, the version information included in the signal is acquired, and the storage unit Is compared with the acquired version information to determine whether the version of the program is new or old, and the version information stored in the storage unit indicates the version indicated by the acquired version information. Transfers the program to the mobile communication device that sent the signal if it is determined that it is older than the version And wherein the door.

  The program update service program according to the present invention provides a signal for establishing a link to a computer provided in a mobile communication device including a control unit and a storage unit that stores version information indicating the version of the program. A process of adding stored version information, a signal transmitted by communication between other mobile communication devices, a process of acquiring version information included in the signal, and a storage unit The version information stored in the storage unit is compared with the version information stored in the storage unit, and the process of determining whether the version of the program is new or old by comparing the acquired version information with the acquired version information. Transfer the program to the mobile communication device that sent the signal Characterized in that to execute the process and that.

  According to the present invention, it is possible to more reliably update the program of the mobile communication device to a new version of the program with a simple configuration.

It is a block diagram which shows the structure of the communication system containing the communication apparatus of 1st Embodiment by this invention. It is a block diagram which shows the structure of the communication apparatus contained in the communication system shown in FIG. It is a sequence diagram which shows an example of operation | movement of the communication system shown in FIG. It is explanatory drawing which shows an example of the format of an SCCH signal. It is explanatory drawing which shows an example of the correspondence of the version information described in an option area | region, and a version. It is a block diagram which shows the structure of 2nd Embodiment of the communication apparatus by this invention. It is a sequence diagram which shows an example of operation | movement of the communication system containing the communication apparatus shown in FIG. It is a block diagram which shows the principal part of the mobile communication apparatus by this invention.

Embodiment 1. FIG.
FIG. 1 is a block diagram showing a configuration of a communication system including a communication apparatus according to a first embodiment (Embodiment 1) according to the present invention. FIG. 2 is a block diagram showing a configuration of a communication device included in the communication system shown in FIG. With reference to FIG. 1 and FIG. 2, the structure of the communication apparatus of 1st Embodiment by this invention is demonstrated.

  The communication system including the communication device according to the first embodiment of the present invention includes a management server 10 and communication devices 20, 31 to 38. The management server 10 provides an update program for a control program that is a program for controlling devices in the communication device. The communication devices 20 and 31 to 38 are mobile communication devices, for example, PHS (Personal Handy-phone System) communication devices. As an example, the communication device 20 is connected to the management server 10 via a wire, and can download an update program from the management server 10. In addition, each of the communication devices 20 and 31 to 38 can perform wireless communication with a communication device other than its own device.

  The communication device 20 includes a program update control unit 21, a flash ROM 22, a RAM 23, a call control unit 24, a signal processing unit 25, and a program transfer processing unit 26. The configuration of the communication devices 31 to 38 is the same as that of the communication device 20.

  The program update control unit 21 downloads an update program from the management server 10. The flash ROM 22 stores a program executed by the communication device 22 and version information of the program. The program update control unit 21 updates the program stored in the flash ROM 22 of the communication device 20 (hereinafter referred to as the program of the communication device 20) with the downloaded update program. The call control unit 24 performs call control of wireless communication (for example, PHS communication).

  The signal processing unit 25 includes an SCCH signal processing unit 27 and an SCCH signal monitoring unit 28. The signal processing unit 25 performs signal processing for performing communication or a call between two communication devices of the communication devices 20 and 31 to 38. The signal processed by the signal processing unit 25 includes an SCCH (Signaling Control Channel) signal. The SCCH signal processing unit 27 adds version information indicating the version of the program of the own device (for example, the communication device 20) to the SCCH signal. The version information of the program of the communication device 20 is acquired from the flash ROM 22 via the program update control unit 21. The SCCH signal monitoring unit 28 monitors an SCCH signal transmitted from another communication device, and acquires program version information of the other communication device added to the SCCH signal.

  The program transfer processing unit 26 compares the version information of the program of the other communication device acquired by the SCCH signal monitoring unit 28 with the new version of the program version based on the version information of the program of the own device. If the program transfer processing unit 26 determines that the program version of the other communication device is older than the program version of the own device, the program transfer processing unit 26 transfers the update program stored in the flash ROM 22 to the other communication device. Start control for.

  The program update control unit 21 and the program transfer processing unit 26 are realized by a CPU that executes processing according to a program, for example.

  FIG. 3 is a sequence diagram showing an example of the operation of the communication system shown in FIG. With reference to FIG. 3, the operation of the communication system shown in FIG. 1 when the communication device 32 calls and communicates with the communication device 31 before and after the program of the communication device 20 is updated will be described. The communication device 20 monitors the SCCH signal transmitted from the communication devices 31 and 32. Further, it is assumed that the versions of the programs of the communication devices 20, 31 and 32 are the same at the start of the communication system shown in FIG.

  When a condition for calling the communication device 31 occurs, the communication device 32 transmits an SCCH signal indicating a call to the communication device 31 in order to call the communication device 31 (step S11). In step S11, the SCCH signal processing unit 27 of the communication device 32 adds version information indicating the version of the program of the communication device 32 to the option area in the message of the SCCH signal indicating the call.

  FIG. 4 is an explanatory diagram showing an example of the format of the SCCH signal. In the format of the SCCH signal shown in FIG. 4, a total of 5 bits, ie, the sixth to eighth bits of the fourth octet and the first to second bits of the fifth octet are set as the option area. The SCCH signal processing unit 27 adds version information to this 5-bit option area. Note that the transmission station side PS call number shown in the first to fifth bits of the third octet and the fourth octet in FIG. 4 indicates a PS (Personal Station) number that can identify the transmission station of the SCCH signal.

  FIG. 5 is an explanatory diagram illustrating an example of a correspondence relationship between version information and versions described in the option area. For example, when the version of the program is “VER.1”, version information indicated by “00001” is added to the option area of the SCCH signal. In the communication device 20, when the program version is updated from “VER.1” to “VER.2”, the SCCH signal processing unit 27 of the communication device 20 displays “ Version information indicated by “00010” is added.

  In the case of using a 5-bit option area, for example, each of the VER. 1-VER. 31 can be defined. If VER. If more than 32 versions are required, VER. 32 and VER. More than 33 versions can be defined. At this time, by determining that the version information changes from “11111” → “00000” → “00001”, the program transfer processing unit 26 is able to change the VER. Even after 32, version information can be compared in size, and new and old comparisons of 32 or more versions can be performed.

  When the SCCH signal indicating the call is transmitted in step S11, the SCCH signal monitoring unit 28 of the communication device 20 that monitors the SCCH signal receives the SCCH signal indicating the call (step S12). The version information of the program of the communication device 32 is acquired from the option area. The program transfer processing unit 26 of the communication device 20 uses the communication device 32 and the communication device 20 based on the version information of the program of the communication device 32 acquired by the SCCH signal monitoring unit 28 and the version information of the program of the communication device 20. The new and old versions of the programs are compared (step S13). As a result of the comparison, the program transfer processing unit 26 determines that the program versions of the communication device 32 and the communication device 20 are the same.

  In response to the SCCH signal indicating a call from the communication device 32, the communication device 31 transmits an SCCH signal indicating synchronization to the communication device 32 (step S14). In step S14, the SCCH signal processing unit 27 of the communication device 31 adds version information indicating the version of the program of the communication device 31 to the option area in the message of the SCCH signal indicating synchronization.

  When the SCCH signal indicating synchronization is transmitted in step S14, the SCCH signal monitoring unit 28 of the communication device 20 monitoring the SCCH signal receives the SCCH signal indicating synchronization (step S15), and the received SCCH signal is transmitted. The version information of the program of the communication device 31 is acquired from the option area. The program transfer processing unit 26 of the communication device 20 communicates with the communication device 31 and the communication device 20 based on the version information of the program of the communication device 31 acquired by the SCCH signal monitoring unit 28 and the version information of the program of the communication device 20. The new and old versions of the program are compared (step S16). As a result of the comparison, the program transfer processing unit 26 determines that the program versions of the communication device 31 and the communication device 20 are the same.

  After the SCCH signal indicating the synchronization is transmitted from the communication device 31 to the communication device 32, when processing for shifting to the communication state is further performed between the communication device 31 and the communication device 32, the communication with the communication device 31 is performed. Communication is performed with the device 32 (step S17).

  The management server 10 transfers the update program to the communication device 20 via a wired connection in order to update the program version of the communication device 20 (step S18).

  The program update control unit 21 of the communication device 20 receives the update program transferred from the management server 10. The program update control unit 21 updates the program stored in the flash ROM 22 with the received update program, and the version of the program of the communication device 20 becomes new (step S19).

  Next, after the program of the communication device 20 is updated, the communication device 32 calls the communication device 31 to perform communication. The communication device 32 transmits an SCCH signal indicating a call to the communication device 31 in order to make a call to the communication device 31 (step S20). In step S20, the SCCH signal processing unit 27 of the communication device 32 adds version information indicating the version of the program of the communication device 32 to the option area in the message of the SCCH signal indicating the call.

  When the SCCH signal indicating the call is transmitted in step S20, the SCCH signal monitoring unit 28 of the communication device 20 monitoring the SCCH signal receives the SCCH signal indicating the call (step S21), and receives the SCCH signal of the received SCCH signal. The version information of the program of the communication device 32 is acquired from the option area. The program transfer processing unit 26 of the communication device 20 uses the communication device 32 and the communication device 20 based on the version information of the program of the communication device 32 acquired by the SCCH signal monitoring unit 28 and the version information of the program of the communication device 20. The new and old versions of the programs are compared (step S22). Since the program of the communication device 20 has been updated, as a result of the comparison, the program transfer processing unit 26 determines that the version of the program of the communication device 32 is older than the version of the program of the communication device 20. At this time, the program transfer processing unit 26 acquires the transmission station side PS call number included in the SCCH signal received from the communication device 32 via the SCCH signal monitoring unit 28.

  In response to the SCCH signal indicating a call from the communication device 32, the communication device 31 transmits an SCCH signal indicating synchronization to the communication device 32 (step S23). In step S23, the SCCH signal processing unit 27 of the communication device 31 adds version information indicating the version of the program of the communication device 31 to the option area in the message of the SCCH signal indicating synchronization.

  When the SCCH signal indicating synchronization is transmitted in step S23, the SCCH signal monitoring unit 28 of the communication device 20 monitoring the SCCH signal receives the SCCH signal indicating synchronization (step S24), and the received SCCH signal is transmitted. The version information of the program of the communication device 31 is acquired from the option area. The program transfer processing unit 26 of the communication device 20 includes the communication device 32 and the communication device 20 based on the version information of the program of the communication device 31 acquired by the SCCH signal monitoring unit 28 and the version information of the program of the communication device 20. The new and old versions of the programs are compared (step S25). Since the program of the communication device 20 has been updated, as a result of the comparison, the program transfer processing unit 26 determines that the program version of the communication device 31 is older than the program version of the communication device 20. At this time, the program transfer processing unit 26 acquires the transmission station side PS call number included in the SCCH signal received from the communication device 31 via the SCCH signal monitoring unit 28.

  After the SCCH signal indicating the synchronization is transmitted from the communication device 31 to the communication device 32, when processing for shifting to the communication state is further performed between the communication device 31 and the communication device 32, the communication with the communication device 31 is performed. Communication is performed with the device 32 (step S26).

  If it is determined in step S22 that the program version of the communication device 32 is older than the program version of the communication device 20, the program transfer processing unit 26 of the communication device 20 transfers the update program to the communication device 32. Start controlling. That is, the program transfer processing unit 26 makes a call to the call control unit 24 with respect to the transmission station-side PS call number (corresponding to the call number of the communication device 32) included in the SCCH signal received from the communication device 32. To instruct. The call control unit 24 cannot call the communication device 32 while the communication device 32 is communicating with the communication device 31. Therefore, the call control unit 24 waits for the communication between the communication device 32 and the communication device 31 to end before performing communication. A call is made to the device 32 (step S27).

  When the call control unit 24 of the communication device 32 responds to the call from the communication device 20, the program transfer processing unit 26 of the communication device 20 updates the program of the communication device 32 to the same version as the program of the communication device 20. Then, the update program stored in the flash ROM 22 is read via the program update control unit 21, and the update program is transferred to the communication device 32 through the signal processing unit 25 (step S28).

  The program update control unit 21 of the communication device 32 receives the update program transferred from the communication device 20. The program update control unit 21 updates the program stored in the flash ROM 22 with the received update program. As a result, the program version of the communication device 32 is the same as the program version of the communication device 20 (step S29).

  If it is determined in step S25 that the program version of the communication device 31 is older than the program version of the communication device 20, the program transfer processing unit 26 of the communication device 20 transfers the update program to the communication device 31. Start controlling. That is, the program transfer processing unit 26 makes a call to the call control unit 24 with respect to the transmission station side PS call number (corresponding to the call number of the communication device 31) included in the SCCH signal received from the communication device 31. To instruct. Since the call control unit 24 cannot call the communication device 31 while the communication device 32 is communicating with the communication device 31, the call control unit 24 waits for the communication between the communication device 32 and the communication device 31 to end before performing communication. A call is made to the device 31 (step S30).

  When the call control unit 24 of the communication device 31 responds to a call from the communication device 20, the program transfer processing unit 26 of the communication device 20 updates the program of the communication device 31 to the same version as the program of the communication device 20. Then, the update program stored in the flash ROM 22 is read via the program update control unit 21, and the update program is transferred to the communication device 31 through the signal processing unit 25 (step S31).

  The program update control unit 21 of the communication device 31 receives the update program transferred from the communication device 20. The program update control unit 21 updates the program stored in the flash ROM 22 with the received update program. As a result, the program version of the communication device 31 is the same as the program version of the communication device 20 (step S32).

  In such a communication system, the management server 10 simply transfers the update program to the communication device 20 connected by wire, and the management server 10 does not instruct the transfer destination of the update program. As the program is updated, it is not necessary to grasp the connection configuration between the communication devices, and the functions of the management server 10 can be simplified.

  In such a communication system, the communication device 20 communicates with the communication device 31 or the communication device according to the result of the comparison of the version of the program each time the monitored communication device 31 or the communication device 32 transmits the SCCH signal. Since the update program is transferred to the device 32 on a one-to-one basis, even if a communication failure occurs during the transfer of the update program and the transfer fails, the update program is transferred to a plurality of communication devices all at once. The range of influence of communication failure can be kept smaller than in the case.

  In such a communication system, for example, even when the transfer of the update program from the communication device 20 to the communication device 32 fails, when the SCCH signal is next transmitted from the communication device 32 on the transfer side, Since the communication device 20 that monitors the SCCH signal transfers the update program to the communication device 32 again, it is possible to prevent the program from being missed even if the management server 10 or the communication device 20 does not have a retransmission function.

  In the sequence diagram shown in FIG. 3, it is described that the communication device 20 monitors the communication devices 31 and 32, but not only the communication device 20 but also each of the communication devices 31 to 38 has its own device. SCCH signals transmitted from other communication devices may be monitored. In such a case, in each communication device, the version of the program is compared with reference to the version information included in the SCCH signal received from the monitored communication device, and the version of the program of the own device is compared. When the version of the monitoring destination communication device is older, processing for transferring the update program to the monitoring destination communication device is performed. However, when the transfer destination communication apparatus is performing update program transfer processing from another communication apparatus, the call control unit 24 of the communication apparatus does not perform a call operation.

  In such a communication system, since a plurality of communication devices can monitor each other's SCCH signal and transfer the update program, a communication device (for example, the communication device 20) fails and cannot transfer the update program. Even so, the update program can be transferred from another communication device (for example, the communication devices 33 to 38), and the reliability of the program update in the entire communication system can be further improved.

Embodiment 2. FIG.
FIG. 6 is a block diagram showing the configuration of the second embodiment (second embodiment) of the communication apparatus according to the present invention. The configuration of the communication system including the communication device illustrated in FIG. 6 is the same as the configuration of the communication system illustrated in FIG. With reference to FIG. 1 and FIG. 6, the structure of the communication apparatus of 2nd Embodiment by this invention is demonstrated.

  Each of the communication devices 20 and 31 to 38 includes a version information regular notification unit 29 in the call control unit 24. The version information periodic notification unit 29 transmits a SCCH signal indicating a call to which the version information of the program of the communication device is added by the SCCH signal processing unit 27 to a predetermined PS call number (existence not assigned to any communication device). (Not call PS call number). Since the version information periodic notification unit 29 transmits the SCCH signal of the call addressed to the non-existing PS call number, no communication device returns an SCCH signal corresponding to the SCCH signal, but the communication monitoring the SCCH signal. The device receives the SCCH signal for the call.

  FIG. 7 is a sequence diagram illustrating an example of the operation of the communication system including the communication device illustrated in FIG. With reference to FIG. 7, the operation of the communication system including the communication apparatus shown in FIG. 6 will be described. The communication device 20 monitors the SCCH signal transmitted from the communication device 31. Further, it is assumed that the versions of the programs of the communication devices 20 and 31 are the same at the start of the communication system shown in FIG.

  First, before the program of the communication device 20 is updated, the version information regular notification unit 29 of the communication device 31 transmits an SCCH signal indicating a call to a non-existing PS call number (step S41). In step S41, the SCCH signal processing unit 27 of the communication device 31 adds version information indicating the version of the program of the communication device 31 to the option area in the message of the SCCH signal indicating the call.

  When the SCCH signal indicating the call is transmitted in step S41, the SCCH signal monitoring unit 28 of the communication device 20 monitoring the SCCH signal receives the SCCH signal indicating the call (step S42), and the received SCCH signal is transmitted. The version information of the program of the communication device 31 is acquired from the option area. The program transfer processing unit 26 of the communication device 20 communicates with the communication device 31 and the communication device 20 based on the version information of the program of the communication device 31 acquired by the SCCH signal monitoring unit 28 and the version information of the program of the communication device 20. The new and old versions of the programs are compared (step S43). As a result of the comparison, the program transfer processing unit 26 determines that the program versions of the communication device 31 and the communication device 20 are the same.

  The management server 10 transfers the update program to the communication device 20 via a wired connection in order to update the program version of the communication device 20 (step S44).

  The program update control unit 21 of the communication device 20 receives the update program transferred from the management server 10. The program update control unit 21 updates the program stored in the flash ROM 22 with the received update program, and the version of the program of the communication device 20 becomes new (step S45).

  Next, after the program of the communication device 20 is updated and a predetermined time has elapsed since the transmission of the SCCH signal in step S41, the version information periodic notification unit 29 of the communication device 31 again addresses the PS call number that does not exist. An SCCH signal indicating a call is transmitted (step S46). In step S46, the SCCH signal processing unit 27 of the communication device 31 adds version information indicating the version of the program of the communication device 32 to the option area in the message of the SCCH signal indicating the call.

  When the SCCH signal indicating the call is transmitted in step S46, the SCCH signal monitoring unit 28 of the communication device 20 monitoring the SCCH signal receives the SCCH signal indicating the call (step S47), and the received SCCH signal is transmitted. The version information of the program of the communication device 31 is acquired from the option area. The program transfer processing unit 26 of the communication device 20 communicates with the communication device 31 and the communication device 20 based on the version information of the program of the communication device 31 acquired by the SCCH signal monitoring unit 28 and the version information of the program of the communication device 20. The new and old versions of the program are compared (step S48). Since the program of the communication device 20 has been updated, as a result of the comparison, the program transfer processing unit 26 determines that the program version of the communication device 31 is older than the program version of the communication device 20. At this time, the program transfer processing unit 26 acquires the transmission station side PS call number included in the SCCH signal received from the communication device 31 via the SCCH signal monitoring unit 28.

  If it is determined in step S48 that the program version of the communication device 31 is older than the program version of the communication device 20, the program transfer processing unit 26 of the communication device 20 transfers the update program to the communication device 31. Start controlling. That is, the program transfer processing unit 26 makes a call to the call control unit 24 with respect to the transmission station side PS call number (corresponding to the call number of the communication device 31) included in the SCCH signal received from the communication device 31. To instruct. The call control unit 24 makes a call to the communication device 31 (step S49).

  When the call control unit 24 of the communication device 31 responds to a call from the communication device 20, the program transfer processing unit 26 of the communication device 20 updates the program of the communication device 31 to the same version as the program of the communication device 20. Then, the update program stored in the flash ROM 22 is read out via the program update control unit 21, and the update program is transferred to the communication device 31 through the signal processing unit 25 (step S50).

  The program update control unit 21 of the communication device 31 receives the update program transferred from the communication device 20. The program update control unit 21 updates the program stored in the flash ROM 22 with the received update program, and the program version of the communication device 31 becomes the same as the program version of the communication device 20 (step S51).

  In such a communication system, the communication device 31 periodically transmits an SCCH signal, and the communication device 20 that monitors the SCCH signal performs a comparison between the new and old versions of the program of the communication device 31. Even when a condition for calling a communication device (for example, the communication device 32) does not occur, the program of the communication device 31 can be reliably updated.

  In the sequence diagram illustrated in FIG. 7, it is described that the communication device 20 monitors the communication device 31, but not only the communication device 20 but also each of the communication devices 31 to 38 is periodically changed. An SCCH signal may be transmitted to a predetermined PS call number that is not assigned to any other communication device, and an SCCH signal transmitted from a communication device other than the own device may be monitored. In such a case, in each communication device, the version of the program is compared with reference to the version information included in the SCCH signal received from the monitored communication device, and the version of the program of the own device is compared. When the version of the monitoring destination communication device is older, processing for transferring the update program to the monitoring destination communication device is performed. However, when the transfer destination communication apparatus is performing update program transfer processing from another communication apparatus, the call control unit 24 of the communication apparatus does not perform a call operation.

  In such a communication system, version comparison processing and update processing with other communication devices are performed in each of the plurality of communication devices, so that a program can be updated simultaneously between a plurality of sets of communication devices. Can do. As a result, it can be expected that the programs of all the communication apparatuses are updated to the latest version during several periodic SCCH signal transmissions.

  In the communication systems of the first and second embodiments, the version information of the communication device program is added to the option area of the SCCH signal used for link establishment. You may add to the predetermined area | region of the other signal used by the radio | wireless communication between mobile communication apparatuses.

  FIG. 8 is a block diagram showing a main part of the mobile communication device according to the present invention. As shown in FIG. 8, the mobile communication device 1 (for example, equivalent to the communication device 20 shown in FIG. 1) corresponds to the other mobile communication devices 2 and 3 (for example, the communication device 31 and the communication device 32 shown in FIG. 1). ) And a wireless communication path, and a call control unit 4 (for example, equivalent to the call control unit 24 shown in FIG. 2) that performs call control, a control program, and a program The storage unit 5 (for example, corresponding to the flash ROM 22 shown in FIG. 2) for storing version information indicating the version and the link establishment signal (for example, SCCH signal) transmitted by the call control unit 4 are stored in the storage unit. The signal processing unit 6 (for example, equivalent to the SCCH signal processing unit 27 shown in FIG. 2) that adds the version information being monitored and a signal transmitted by communication between other mobile communication devices are monitored and included in the signal Have The signal monitoring unit 7 (for example, equivalent to the SCCH signal monitoring unit 28 shown in FIG. 2) that acquires version information, the version information stored in the storage unit 5, and the version information acquired by the signal monitoring unit 7 By comparing the version information acquired by the signal monitoring unit 7, the determination unit 8 (for example, corresponding to the program transfer processing unit 26 shown in FIG. When it is determined that the version is older than the version indicated by the version information stored in the storage unit 5, the program is transferred to the mobile communication device that has transmitted the signal (for example, steps S20 to S22 and S27 to 28 in FIG. 3). The transfer processing unit 9 (for example, in the program transfer processing unit 26 shown in FIG. 2) And an equivalent).

  In addition, mobile communication devices as shown in the following (1) to (4) are also disclosed in the communication systems of the above embodiments.

(1) A call control unit (for example, equivalent to the version information regular notification unit 29 shown in FIG. 6) periodically sends a signal for link establishment to a destination not assigned to any mobile communication device. (For example, in the communication system of the second embodiment, this is realized by the operation of the mobile communication device 20 that periodically transmits an SCCH signal to a non-existing PS call number.) Mobile communication device.

(2) The mobile communication device, wherein the signal processing unit adds the first version information stored in the storage unit to the option area of the SCCH signal when the call control unit transmits the SCCH signal.

(3) An update control unit (for example, equivalent to the program update control unit 21 shown in FIG. 2) that updates the program stored in the storage unit with the transferred update program when the program is transferred from another device. Mobile communication device provided. For example, this is realized by the operation of the communication device 32 shown in steps S28 to S29 in FIG.

(4) When an update program is transferred from a management server (for example, equivalent to the management server 10 shown in FIG. 1) connected by wire, the update control unit is stored in the storage unit with the transferred update program. A mobile communication device that updates a program (for example, realized by the operation of the communication device 20 shown in steps S18 to S19 in FIG. 3).

1, 2, 3 Mobile communication device 4 Call control unit 5 Storage unit 6 Signal processing unit 7 Signal monitoring unit 8 Determination unit 9 Transfer processing unit 10 Management server 20, 31-38 Communication device 21 Program update control unit 22 ROM
23 RAM
24 Call Control Unit 25 Signal Processing Unit 26 Program Transfer Processing Unit 27 SCCH Signal Processing Unit 28 SCCH Signal Monitoring Unit 29 Version Information Periodic Notification Unit

Claims (9)

A mobile communication device capable of communicating with another mobile communication device via a wireless transmission path,
A call control unit for performing call control;
A storage unit for storing a control program and version information indicating a version of the program;
A signal processing unit for adding version information stored in the storage unit to a signal for link establishment transmitted by the call control unit;
A signal monitoring unit that monitors the signal transmitted by communication between other mobile communication devices and acquires version information included in the signal;
A determination unit that determines whether the version of the program is new or old by comparing the version information stored in the storage unit and the version information acquired by the signal monitoring unit;
When the determination unit determines that the version indicated by the version information acquired by the signal monitoring unit is older than the version indicated by the version information stored in the storage unit, the mobile communication device that has transmitted the signal A mobile communication device comprising: a transfer processing unit that transfers a program. The mobile communication device according to claim 1, wherein the call control unit periodically sends a signal for link establishment to a destination not assigned to any mobile communication device. The mobile communication device according to claim 1, wherein the signal processing unit adds the version information stored in the storage unit to the option area of the SCCH signal when the call control unit transmits the SCCH signal. The update control part which updates the program memorize | stored in the memory | storage part with the transferred update program when a program is transferred from the other apparatus. Mobile communication device. The mobile communication device according to claim 4, wherein the update control unit updates the program stored in the storage unit with the transferred update program when the update program is transferred from the management server connected by wire. A program update method for updating a program executed by a mobile communication device including a control program and a storage unit that stores version information indicating a version of the program,
Add the version information stored in the storage unit to the signal for link establishment,
Monitor the signal transmitted by communication between other mobile communication devices, obtain version information included in the signal,
By comparing the version information stored in the storage unit with the acquired version information, it is determined whether the version of the program is new or old,
The program is transferred to the mobile communication device that has transmitted the signal when it is determined that the version indicated by the acquired version information is older than the version indicated by the version information stored in the storage unit. Update method. The program update method according to claim 6, wherein a signal for link establishment is periodically transmitted to a destination not assigned to any mobile communication device. A computer provided in a mobile communication device including a control program and a storage unit that stores version information indicating the version of the program,
A process of adding version information stored in the storage unit to a signal for link establishment;
A process of monitoring the signal transmitted in communication between other mobile communication devices and obtaining version information included in the signal;
A process for determining whether the version of the program is new or old by comparing the version information stored in the storage unit and the acquired version information;
A process of transferring a program to the mobile communication device that has transmitted the signal when it is determined that the version indicated by the acquired version information is older than the version indicated by the version information stored in the storage unit. Program update service program. On the computer,
The program update service program according to claim 8, wherein a program for periodically transmitting a signal for link establishment is executed to a destination not assigned to any mobile communication device.

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