JP2000308138A - Communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily deal with the occurrence of bugging in control software for operating a portable telephone set. SOLUTION: A portable telephone set 1 is provided with an operating memory and a backup memory. When bugging in the control software stored in the operating memory is detected, by transmitting a transmission request to a communication network 15, the portable telephone set 1 receives new control software from the communication network 15 and stores that received new control software in the backup memory. Then, operating software is switched from the control software stored in the operating memory to the control software stored in the backup memory. Even when bugging occurs in the control software to be operated, it is not necessary for a user to carry the portable telephone set 1 into a dedicated sales shop and the user can easily deal with bugging.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication system constructed so that a mobile station can be connected to a communication network or an integrated communication network.

[0002]

In recent years, with the advance of telecommunication technology, portable telephones as mobile stations have become widespread. In this type of mobile telephone, various processes such as a communication process are executed by a control unit operating control software (control software) stored in a memory as operation software.

By the way, when a bug (defect) is found in the control software of a mobile phone, a user using the mobile phone conventionally brings the mobile phone to a specialty store or the like and converts the mobile phone to a dedicated download terminal. Connected and downloaded new control software with bugs fixed.

In addition, not only when a bug is found in the control software, but also when the control software is upgraded to correspond to a new service, the user using the mobile phone is not allowed to use the mobile phone. He brought his phone to a specialty store, connected his mobile phone to a dedicated download terminal, and downloaded new upgraded control software.

[0005] However, this has a problem that the user who uses the mobile phone is troublesome in bringing the mobile phone to a specialty store or the like. In addition, for communication carriers that provide communication services and manufacturers that manufacture mobile phones, a large number of dedicated download terminals are needed to support users bringing mobile phones to specialized stores. There is also a problem that a great deal of cost is required because of the necessity of installation.

[0006] The present invention has been made in view of the above circumstances, and an object thereof is to be able to easily cope with a case where a problem occurs in control software for operating a mobile station. Accordingly, it is an object of the present invention to provide a communication system capable of improving convenience.

[0007]

According to the communication system of the present invention, the communication network transmits control software for operating the mobile station to the mobile station. The mobile station transmits the operation software from the control software stored in the storage unit to the communication network when a predetermined condition is satisfied while operating the control software stored in the storage unit as the operation software. Then, the control software is switched to the control software stored in the other storage means, and thereafter, the control software transmitted from the communication network and stored in the other storage means is operated as operation software.

That is, according to this, a user who uses a mobile station corrects the bug from the communication network when a bug (defect) is found in the control software of the mobile station or when the control software is upgraded. It is possible to receive new control software that has been updated or upgraded, store the new control software in other storage means, and operate the mobile station using the new control software as operating software. Become. Therefore, the user who uses the mobile station does not need to bring the mobile station to a specialty store or the like, unlike the conventional one, even if a problem occurs in the control software. Thus, convenience can be improved.

According to the communication system of the present invention, when a predetermined operation is performed, the mobile station transmits a transmission request to the communication network, and the communication network receives the transmission request transmitted from the mobile station. The control software is transmitted on condition that this is the case. That is, according to this, the user using the mobile station,
Executing a predetermined operation causes the communication network to transmit a transmission request, thereby causing the communication network to receive new control software in which a bug is fixed or new control software that has been upgraded, and perform the new control. The mobile station can be operated using the software as operation software.

[0010] According to the communication system of the third aspect, the integrated communication network transmits control software for operating the mobile station to the mobile station. Then, the mobile station operates the control software stored in the storage means from the control software stored in the storage means when the predetermined condition is satisfied while operating the control software stored in the storage means as the operation software from the integrated communication network. Switch to the control software transmitted and stored in other storage means,
Thereafter, the control software transmitted from the integrated communication network and stored in another storage unit is operated as operation software.

That is, according to this, a user who uses a mobile station, when a bug is found in the control software of the mobile station or when upgrading the control software, the bug is corrected from the integrated communication network. It is possible to receive new control software or new control software that has been upgraded, store the new control software in another storage means, and operate the mobile station using the new control software as operation software. Therefore, the user who uses the mobile station does not need to bring the mobile station to a specialty store or the like, unlike the conventional one, even if a problem occurs in the control software. Thus, convenience can be improved.

According to the communication system of the fourth aspect, in the integrated communication network, the control software to be transmitted is related to one of the plurality of communication networks, and the communication is performed using the one communication network. When the control software is in the middle, the control software is transmitted from another communication network among the plurality of communication networks. That is, according to this, even when a user using a mobile station is communicating using one communication network, integrated communication can be performed without interrupting communication using the one communication network. From the network, it becomes possible to receive new control software in which bugs are fixed or new control software that has been upgraded.

According to the communication system of the fifth aspect, when a predetermined operation is performed, the mobile station transmits a transmission request to the integrated communication network, and the integrated communication network receives the transmission request transmitted from the mobile station. The control software is transmitted on condition that it is received. In other words, according to this, the user using the mobile station performs a predetermined operation to cause the integrated communication network to transmit a transmission request, whereby a new control in which a bug is fixed is transmitted from the integrated communication network. It is possible to receive software or new control software that has been upgraded, and operate the mobile station using the new control software as operation software.

According to the communication system of the sixth aspect, the mobile station transmits a transmission request for one of a plurality of communication networks, and is performing communication using the one communication network. If, the transmission request is transmitted to another one of the plurality of communication networks. That is, according to this one:
A user who uses a mobile station should be able to transmit a transmission request to an integrated communication network without interrupting communication using the one communication network even during communication using the one communication network. Becomes possible.

According to the communication system of the present invention, the communication network transmits control software when executing the location registration request. That is, according to this, the user using the mobile station does not need to add a new communication signal for transmitting the control software separately when transmitting the control software from the communication network. It is possible to transmit control software by using.

According to the communication system of the present invention, the integrated communication network transmits control software when executing the location registration request. That is, according to this, the user using the mobile station does not need to add a new communication signal for transmitting the control software separately when transmitting the control software from the integrated communication network. Control software can be transmitted using the signal.

According to the communication system of the ninth aspect, the mobile station transmits a transmission request when performing location registration.
That is, according to this, the user using the mobile station does not need to add a new communication signal for transmitting the transmission request separately when transmitting the transmission request to the communication network, and can use the existing communication signal. It is possible to transmit a transmission request by using.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) Hereinafter, the present invention will be described with reference to a personal digital cellular (PDC) device.
A first embodiment applied to a communication system of the (igital Cellular) system and applied to a mobile phone having a PDC communication function as a mobile station will be described with reference to FIGS.

First, FIG. 2 shows an electric configuration of the portable telephone. The mobile phone 1 includes a control unit 2 (determination unit and control unit in the present invention) mainly including a microcomputer. The control unit 2 includes a radio unit 3 (transmission request transmitting means in the present invention), a baseband processing unit 4,
Voice processing unit 5, key operation detection unit 6 (operation detection means in the present invention), display control unit 7, operation memory 8 (storage means in the present invention), and backup memory 9 (other storage means in the present invention) Is connected, and the control unit 2 is configured to control the respective units 3 to 9 by transferring a control signal between the respective units 3 to 9.

The radio section 3 includes a receiving circuit and a demodulating circuit as a receiving system. For example, when a radio wave in a 1.5 GHz band is captured by the antenna 10 and a received signal is supplied accordingly, the signal is given. The received signal is subjected to reception processing, demodulation processing, and the like, and the received signal is output to the baseband processing unit 4. Also,
The wireless unit 3 includes a modulation circuit, a quadrature modulation circuit, a power amplification circuit, and the like as a transmission system. When a transmission signal is provided from the baseband processing unit 4, the given transmission signal is modulated and quadrature modulated. And a power amplification process, and outputs the transmission signal to the antenna 10. When the transmission signal is supplied from the radio unit 3, the antenna 10
It is radiated as a radio wave in the GHz band.

The baseband processing section 4 is mainly composed of a TDMA control circuit. When a reception signal is given from the radio section 3, the baseband processing section 4 executes TDMA processing on the given reception signal and converts the received signal into a voice signal. The data is output to the processing unit 5. Further, when a transmission signal is given from the audio processing unit 5, the baseband processing unit 4 executes TDMA processing on the given transmission signal and outputs the transmission signal to the radio unit 3.

The audio processing unit 5 is provided with a DSP, an audio interface circuit, and the like. When a received signal is supplied from the baseband processing unit 4, an audio decoding process and a D / An A-conversion process or the like is executed to generate a reception signal, and the reception signal is output to the receiver 11.
Is configured to output the received reception signal as a voice when the reception signal is supplied from the voice processing unit 5.

When a speech signal is supplied from the microphone 12 in response to the speech input from the microphone 12, the speech processing unit 5 performs A / D conversion processing and speech coding on the given speech signal. A transmission signal is generated by performing a conversion process and the like, and the transmission signal is output to the baseband processing unit 4.

The key operation detecting section 6 includes a power key, a call start key, a call end key, numeric keys “0” to “9”,
It is connected to a keypad 13 on which various keys such as (function) keys are arranged, and when a key operation signal corresponding to the key operation is given from the keypad 13, the key operation signal corresponding to the given key operation signal is given. The control signal is output to the control unit 2. Then, when a control signal is given from the key operation detecting unit 6, the control unit 2 executes a process according to the given control signal.

The display control unit 7 is connected to a display 14 having a liquid crystal display unit. When a control signal is supplied from the control unit 2, the display control unit 7 outputs a display command signal according to the supplied control signal. Output. Then, when a display command signal is given from the display control unit 7, the display 14 displays display information corresponding to the given display command signal.

The operation memory 8 stores control software (control software) in a storage area of a predetermined capacity, and the control unit 2 reads out the control software stored in the operation memory, and stores the read control software. By operating as operation software, it is possible to execute various processing such as communication processing. Also, the backup memory 9
Is provided with a storage area having substantially the same capacity as the predetermined capacity of the operation memory 8, and control software different from the control software stored in the operation memory 8 can be stored in the storage area.

Next, FIG. 3 schematically shows a communication system. The PDC communication network 15 is a mobile communication control station (M
CC: Mobile Control Center 16 is a radio base station (B)
(S: Base Station) 17.
Although FIG. 1 shows that the mobile communication control station 16 accommodates only one radio base station 17, a configuration in which the mobile communication control station 16 accommodates a plurality of radio base stations 17 is also possible. is there. Then, the PDC communication network 1 thus configured
5 is PSTN (Public Switched Telephone Network)
) And ISDN (Integrated Services Digital Network)
) Are connected to each other, and the public communication network 18 accommodates a service control station 19.

The mobile phone 1 configured as described above can receive the position registration request signal transmitted from the wireless base station 17 of the PDC communication network 15 (within the range indicated by P in FIG. 3). ), And when the power is turned on, when the position registration request signal transmitted from the wireless base station 17 is received, the position registration signal is transmitted to the wireless base station 17.

Next, the operation of the above configuration will be described with reference to FIG.
The description will be made with reference to FIG. When the user of the mobile phone 1 recognizes that an abnormality has occurred in the control of the mobile phone 1 and that the abnormality is caused by the control software and a bug has occurred in the control software, the user of the mobile phone 1 And performs a predetermined key operation. When detecting that the user has performed a predetermined key operation (detecting that the predetermined condition according to the present invention is satisfied), the control unit 2 performs the PDC communication network 15 (wireless base station) when performing the location registration. 17) to transmit a transmission request. Then, upon receiving the transmission request transmitted from the mobile phone 1 in this manner, the PDC communication network 15 transmits the transmission request to the service control station 19 through the public communication network 18.

When the service control station 19 receives the transmission request transmitted from the portable telephone 1 through the PDC communication network 15 and the public communication network 18 in this way, the service control station 19 transmits the control software to the public communication network 18 and the PDC communication network 15. To the mobile phone 1 through

When the mobile phone 1 receives the control software transmitted in this manner, the control unit 2 stores the received control software in the backup memory 9. Then, the control unit 2 switches the operation software from the control software stored in the operation memory 8 to the control software stored in the backup memory 9 in this manner, and thereafter, the control software stored in the backup memory 9. Is operated as operation software, and executes various processing such as communication processing.

As described above, the user can download a new control software from the communication network by executing a predetermined key operation and transmitting a transmission request to the communication network. Software can be operated as operation software.

By the way, in the configuration described above, the communication network transmits the control software on condition that the user using the mobile phone 1 performs a key operation for transmitting the transmission request. Also, the control software can be transmitted irrespective of the user's key operation. In other words, for example, when the user cannot recognize that a bug has occurred in the control software, the new control software with the bug fixed can be transmitted from the communication network to the mobile phone 1 at an arbitrary timing. In such a case, it may be configured to notify the user that new control software has been transmitted.

As described above, according to the first embodiment, the mobile phone 1 receives the control software from the communication network by transmitting the transmission request to the communication network, and stores the received control software in the backup memory 9. Then, the operation software is switched from the control software stored in the operation memory 8 to the control software stored in the backup memory 9, and thereafter,
The control software stored in the backup memory 9 is configured to be operated as operation software.

Accordingly, when a user using the mobile phone 1 finds a bug in the control software of the mobile phone 1 or upgrades the control software, the user uses the new control software in which the bug is corrected or upgrades the version. By receiving the new control software from the communication network in this way, unlike the conventional one, there is no need to bring the mobile phone 1 to a specialty store or the like, which makes it easy to respond. Thus, the convenience can be improved.

(Second Embodiment) Next, the present invention is applied to a personal digital cellular communication system and a simplified portable telephone system (PHS: Personal Handyphone Sy).
4 to 6 of a second embodiment applied to a communication system configured to include a communication system including a stem) type communication system, and applied to a mobile phone having a PDC communication function and a PHS communication function as a mobile station. It will be described with reference to FIG.

First, FIG. 5 shows an electric configuration of a mobile phone. The mobile phone 21 includes a control unit 22 mainly including a microcomputer. Control unit 2
2 includes a PDC radio unit 23 (transmission request transmitting unit according to the present invention), a PDC baseband processing unit 24, a PHS radio unit 25 (transmission request transmitting unit according to the present invention), a PHS baseband processing unit 26, and a PDC / PHS common voice processing unit 2
7, a key operation detection unit 28, a display control unit 29, an operation memory 30 (storage means according to the present invention), and a backup memory 31 (other storage means according to the present invention) are connected. By transferring a control signal between the respective units 23 to 31, the respective units 23 to 31 are transferred.
Is configured to be controlled.

The PDC radio section 23 includes a receiving circuit and a demodulating circuit as a receiving system.
When the radio wave of the z band is captured by the PDC / PHS antenna 32 and the received signal is provided via the PDC / PHS duplexer 33 accordingly, the receiving process and the demodulation process are performed on the provided received signal. And outputs the received signal to the PDC baseband processing unit 24.

The PDC radio section 23 includes a modulation circuit, a quadrature modulation circuit, a power amplifier circuit and the like as a transmission system. When a transmission signal is supplied from the PDC baseband processing section 24, the supplied transmission signal is transmitted. , And performs a modulation process, a quadrature modulation process, a power amplification process, and the like, and outputs the transmission signal to the PDC / PHS duplexer 33.

The PDC baseband processing unit 24 has a TDM
A receiving circuit receives the received signal from the PDC radio unit 23, executes TDMA processing on the received signal, and converts the received signal into a PDC signal.
/ PHS common voice processing unit 27. In addition, the PDC baseband processing unit 24 performs PDC /
When a transmission signal is provided from the PHS common voice processing unit 27, TDMA processing is performed on the provided transmission signal, and the transmission signal is output to the PDC wireless unit 23.

The PHS radio unit 25 basically has a function substantially equivalent to that of the PDC radio unit 23 described above. In this case, while the PDC radio unit processes the transmission signal and the reception signal in the 1.5 GHz band conforming to the PDC communication standard, the PHS radio unit 25 transmits the 1.9 GHz band conforming to the PHS communication standard. It is configured to process signals and received signals.

The PHS baseband processing section 26 basically has a function substantially equivalent to that of the PDC baseband processing section 24 described above. In this case, the PDC baseband processing unit 24 is adapted to the PDC communication standard 1.5.
The PHS baseband processing unit 26 is configured to process transmission signals and reception signals in the 1.9 GHz band that comply with the PHS communication standard, while processing transmission signals and reception signals in the GHz band.

The PDC / PHS common audio processing unit 27
When a reception signal is provided from the PDC baseband processing unit 24 or the PHS baseband processing unit 26, a speech decoding process is performed on the provided reception signal. A receiving signal is generated by executing a D / A conversion process or the like, and the receiving signal is output to the receiver 34. When the receiving signal is supplied from the audio processing unit 27, the receiver 34 receives the receiving signal. The received call signal is output as voice.

The PDC / PHS common audio processing unit 27
Performs a A / D conversion process, a voice encoding process, and the like on the supplied transmission signal when the transmission signal is supplied from the microphone 35 in response to the voice input by the microphone 35. A transmission signal is generated, and the transmission signal is output to the PDC baseband processing unit 24 or the PHS baseband processing unit 26.

With such a configuration, the portable telephone device 21
In a state where the control unit 22 controls the PDC radio unit 23 and the PDC baseband processing unit 24 to be operable,
1.5GHz band radio wave is PDC / PHS antenna 32
When received by the microphone 3, the receiver 34 outputs a reception signal corresponding to the radio wave from the receiver 34 as sound.
When a voice is input, the PDC / PHS antenna 32 generates a transmission signal and radiates a 1.5 GHz band radio wave corresponding to the transmission signal from the PDC / PHS antenna 32. Also, the mobile phone device 21 transmits radio waves in the 1.9 GHz band to the PDC / PHS while the control unit 22 controls the PHS radio unit 25 and the PHS baseband processing unit 26 so as to be operable.
When captured by the antenna 32, a reception signal corresponding to the radio wave is output as a sound from the receiver 34. When the microphone 35 inputs a sound, a transmission signal is generated, and a 1.9GHz corresponding to the transmission signal is generated. Band radio wave P
It radiates from the DC / PHS antenna 32.

The key operation detecting section 28 is connected to a keypad 36 and has the same configuration as the key operation detecting section 6 described in the first embodiment. The display controller 29 is connected to a display 37 and has the same configuration as the display controller 7 described in the first embodiment.

The operation memory 30 is a PDC operation memory 30
a and a PHS operation memory 30b. The PDC operation memory 30a stores control software related to PDC communication in a storage area having a predetermined capacity.
2 reads out the control software stored in the PDC operation memory 30a and operates the read out control software as operation software, thereby enabling various processes such as communication processes related to PDC communication to be executed. Has become. Further, the PHS operation memory 30b stores control software related to PHS communication in a storage area of a predetermined capacity, and the control unit 22 reads out the control software stored in the PHS operation memory 30b, and reads the read control software. By operating the software as operation software, it is possible to execute various processing such as communication processing related to PHS communication.

The backup memory 31 includes a PDC backup memory 31a and a PHS backup memory 3
1b. The PDC backup memory 31a has a storage area having a capacity substantially equal to a predetermined capacity of the PDC operation memory 30a, and stores control software different from the control software stored in the PDC operation memory 30a in the storage area. It is possible. Also,
The PHS backup memory 31b has a storage area having a capacity approximately equal to the predetermined capacity of the PHS operation memory 30b, and stores control software different from the control software stored in the PHS operation memory 30b in the storage area. It is possible.

Next, FIG. 6 schematically shows a communication system. The PDC communication network 38 is a mobile communication control station (M
CC) 39 accommodates a radio base station (BS) 40. The PHS communication network 41 is connected to a local exchange 42.
The PHS connection device 43 accommodated in the wireless base station (CS:
Cell Station) 44 is accommodated. Then, the PDC communication network 38 and PH
The S communication network 41 is interconnected with a public communication network 45,
The public communication network 45 houses a service control station 46.

The mobile phone 21 configured as described above can receive the position registration request signal transmitted from the wireless base station 40 of the PDC communication network 38 (within the range indicated by P in FIG. 6). ), And when the power is turned on, when a position registration request signal transmitted from the wireless base station 40 is received, the position registration signal is transmitted to the wireless base station 40. In addition, the mobile phone 21
In a position where the position registration request signal transmitted from the wireless base station 44 of the HS communication network 41 can be received (within the range indicated by Q in FIG. 6), and when the power is on,
When a position registration request signal transmitted from the wireless base station 44 is received, a position registration signal is transmitted to the wireless base station 44.

Next, the operation of the above configuration will be described with reference to FIG.
The description will be made with reference to FIG. The user of the mobile phone 21 has an abnormality in the control related to the PDC communication of the mobile phone 21, which is caused by the control software related to the PDC communication, and a bug has occurred in the control software related to the PDC communication. Is recognized, the user using the mobile phone 21 executes a predetermined key operation. When detecting that the user has performed a predetermined key operation, the control unit 22
When performing location registration in the communication network 41, the PHS communication network 4
1 (radio base station 44) to transmit a transmission request. Then, the PHS communication network 41 is connected to the mobile phone 2 in this manner.
When receiving the transmission request transmitted from No. 1, the transmission request is transmitted to the service control station 46 through the public communication network 45.

When the service control station 46 receives the transmission request transmitted from the mobile phone 21 through the PHS communication network 41 and the public communication network 45 in this way,
The control software for DC communication is transmitted to the public communication network 45 and the PH.
The data is transmitted to the mobile phone 21 through the S communication network 41.

When the mobile phone 21 receives the control software related to the PDC communication transmitted in this manner,
The control unit 22 stores the received control software related to the PDC communication in the PDC backup memory 31a. Then, the control unit 22 stores the operation software in the PDC operation memory 3.
The control software stored in the PDC backup memory 31a is switched from the control software stored in the PDC backup memory 31a to the control software stored in the PDC backup memory 31a.
operating the control software stored in a as operation software,
Executes various processing such as communication processing.

As described above, the user can download new control software from the communication network by executing a predetermined key operation and transmitting a transmission request, and thereafter, operates the downloaded new control software. It can be operated as software.

By the way, also in this case, the communication network can transmit the control software irrespective of the user's key operation. That is, for example, the user recognizes that a bug has occurred in the control software. In the case where it is not possible, new control software in which a bug is fixed can be transmitted from the communication network to the mobile phone 21 at an arbitrary timing. In this case, the user is notified that the new control software has been transmitted. It can also be configured to notify.

When a bug occurs in the control software related to the PHS communication, the portable telephone 21 transmits a transmission request through the PDC communication network 38.
New control software can be received through the DC communication network 38.

As described above, according to the second embodiment, the portable telephone 21 receives the control software from the communication network by transmitting the transmission request to the communication network, and stores the received control software in the backup memory 31. Then, the operation software is switched from the control software stored in the operation memory 30 to the control software stored in the backup memory 31, and thereafter, the control software stored in the backup memory 31 is operated as the operation software. Configured.

Therefore, when the user using the mobile phone 21 finds a bug in the control software of the mobile phone 1 or upgrades the control software,
As in the first embodiment described above, there is no need to bring the mobile phone 21 to a specialty store or the like, and it is possible to easily cope with the situation, thereby improving the convenience.

In this case, when downloading control software related to PDC communication, a transmission request
Since the control software is transmitted through the S communication network 41 and the control software is downloaded through the PHS communication network 41, new control software related to the PDC communication can be downloaded without interrupting the PDC communication. Conversely, when downloading the control software related to the PHS communication, the transmission request is transmitted through the PDC communication network 38 and the control software is downloaded through the PDC communication network 38. Without downloading, new control software related to PHS communication can be downloaded.

(Other Embodiments) The present invention is not limited to the above embodiment, but can be modified or expanded as follows. In the first embodiment, the communication system is not limited to the PDC communication system, but may be a PHS communication system or an analog cellular communication system. In addition, such a time division multiple access (T
DMA) and frequency division multiple access (FDMA) communication systems, but also code division multiple access (CDMA).
A communication system of a system may be used.

The PDC communication section is not limited to the configuration corresponding to the 1.5 GHz band conforming to the PDC communication standard, but may be configured to correspond to the 800 MHz band conforming to the PDC communication standard.

In the second embodiment, the communication system is not limited to a communication system including a PDC communication system and a PHS communication system, but may be a communication system including an analog cellular communication system. A system such as a time division multiple access (TDMA) scheme or a frequency division multiple access (FD)
The communication system is not limited to the MA) communication system, and may be a communication system including a code division multiple access (CDMA) communication system. If the mobile station is a simple type mobile phone and can perform direct communication between slave units, a configuration in which control software is downloaded using direct communication between slave units may be employed.

[Brief description of the drawings]

FIG. 1 schematically shows a first embodiment of the present invention.

FIG. 2 is a functional block diagram showing an electrical configuration of the mobile phone.

FIG. 3 is a system configuration diagram.

FIG. 4 is a view corresponding to FIG. 1 showing a second embodiment of the present invention.

FIG. 5 is a diagram corresponding to FIG. 2;

FIG. 6 is a diagram corresponding to FIG. 3;

[Explanation of symbols]

In the drawings, 1 is a mobile phone (mobile station), 2 is a control unit (determination unit, control unit), 3 is a wireless unit (transmission request transmission unit),
Reference numeral 6 denotes a key operation detection unit (operation detection unit), 8 denotes an operation memory (storage unit), 9 denotes a backup memory (other storage unit), 15 denotes a PDC communication network (communication network), and 18 denotes a public communication network (communication network). ), 21 is a mobile phone (mobile station), 22 is a control unit (determination unit, control unit), 23 is a PDC radio unit (transmission request transmission unit), 25 is a PHS radio unit (transmission request transmission unit), and 28 is a key Operation detecting section (operation detecting means), 30
Is an operation memory (storage means), 31 is a backup memory (other storage means), 38 is a PDC communication network (communication network), 4
1 is a PHS communication network (communication network), and 45 is a public communication network (communication network).

Claims (9)

[Claims] 1. A communication system in which a mobile station is constructed so as to be connectable to a communication network, wherein the communication network is configured to transmit control software (control software) for operating the mobile station to the mobile station. The mobile station comprises: storage means capable of storing control software; another storage means capable of storing control software transmitted from the communication network; and determination means for determining whether a predetermined condition is satisfied. A control unit capable of operating both control software stored in the storage unit and control software transmitted from the communication network and stored in the other storage unit as operation software, wherein the control unit is When the determination unit determines that the predetermined condition is satisfied when the control software stored in the storage unit is operated as operation software, the operation software is stored in the storage unit. The control software transmitted from the communication network is switched from the control software stored in the means to the control software stored in the other storage means, and the control software stored in the other storage means is operated as operation software. A communication system characterized in that: 2. The mobile station, comprising: operation detection means for detecting whether a predetermined operation has been performed; and transmitting to the communication network on condition that the operation detection means has detected that the predetermined operation has been performed. The communication system according to claim 1, further comprising: transmission request transmission means for transmitting a request, wherein the communication network transmits control software on condition that a transmission request transmitted from the mobile station is received. . 3. A communication system in which a plurality of communication networks having different communication systems are mixed to form an integrated communication network, and a mobile station is constructed so as to be connectable to the integrated communication network, wherein the integrated communication network comprises: The mobile station is configured to be able to transmit control software (control software) for operating the mobile station to the mobile station, the mobile station includes: a storage unit capable of storing control software; and control software transmitted from the integrated communication network. Other storage means capable of storing the information, a determination means for determining whether a predetermined condition is satisfied, and control software stored in the storage means and transmitted from the integrated communication network to the other storage means. Control means capable of operating both of the stored control software as operation software, wherein the control means operates the control software stored in the storage means as operation software. When the determination unit determines that the predetermined condition is satisfied when the operation software is operating, the operating software is transmitted from the integrated communication network from the control software stored in the storage unit and stored in the other storage unit. A communication system configured to switch to control software and operate the control software stored in the other storage means as operation software. 4. The integrated communication network, wherein the control software to be transmitted is related to one of the plurality of communication networks, and when communication is being performed using the one communication network, The communication system according to claim 3, wherein the control software is transmitted from another communication network among the plurality of communication networks. 5. The mobile station, comprising: an operation detecting means for detecting whether a predetermined operation has been executed; and an integrated communication network on condition that the operation detecting means detects that the predetermined operation has been executed. 5. A transmission request transmitting means for transmitting a transmission request, wherein the integrated communication network transmits control software on condition that a transmission request transmitted from the mobile station is received. A communication system as described. 6. The mobile station, when the transmission request to be transmitted relates to one of the plurality of communication networks, and when the mobile station is communicating using the one communication network, the transmission request is transmitted. The communication system according to claim 5, wherein the request is transmitted to another communication network among the plurality of communication networks. 7. The communication system according to claim 1, wherein the communication network transmits control software when executing the location registration request. 8. The communication system according to claim 3, wherein the integrated communication network transmits control software when executing the location registration request. 9. The communication system according to claim 2, wherein the mobile station transmits a transmission request when performing location registration.