JP2003143652A - Mobile portable terminal, mobile communication system, and communication method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a function of easily switching a line exchange network and a packet transmission network to a user of a mobile portable terminal by an easy operation/procedure with a small load while talking in the case of transmitting electronic mail or the like to the same opposite party in the case of a call or a call in absence. SOLUTION: The mobile portable terminal having a packet communication function is configured to freely select the line exchange network used for a speech or the packet transfer network used for data communication. The mobile communication system is configured with a mobile communication network and a base station provided with a changeover section for selecting the line exchange network or the packet transfer network in response to a request of the mobile portable terminal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication system for providing a packet communication service and a circuit switching communication service, which has improved usability for users.
A mobile portable terminal (cellular phone) having a packet communication function,
The present invention also relates to a mobile communication system configured to include a circuit switching network and a packet transfer network that connect the terminals to each other, and a communication method.

[0002]

2. Description of the Related Art Conventionally, in a mobile portable terminal equipped with a mail function in addition to a call function, each function is configured to be available after a different transition state from the main menu. For this reason, when the calling party (recipient) cannot make a call when calling out of the voice call due to out-of-service or the like, this can be used when the calling party uses the answering service of the circuit switching network.

However, when the other party does not use the answering service, the same purpose can be achieved by sending a message by mail to the same party using a packet transfer network which is a different line. However, in this case, it is necessary to disconnect the line and operate the mobile portable terminal from the main menu to send a message, and the user must operate the terminal in a complicated and troublesome procedure. There were difficulties.

When it becomes necessary to send an e-mail or transfer a received mail to the same person during a call, the user temporarily stops the call and sends the same data to send the data. A complicated and time-consuming operation is required to reconnect to the other party, and if the call is made again, the line must be disconnected and the call must be called again, and the terminal must be operated in a complicated procedure. there were.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and is a simple operation / procedure with less burden when sending an e-mail or the like to the same party during a missed call or during a call. It is an object of the present invention to provide a user of a mobile portable terminal with a function capable of easily switching between a circuit switching network and a packet transfer network during a call. As a result, the user can easily send a message during a missed call, and can easily transfer information such as character information and image information even during a call, and can realize easy-to-understand information exchange with the other party. Usability is improved.

[0006]

In order to solve the problem, the present invention according to claim 1 uses the mobile communication terminal having a call function and a packet communication function for a circuit switching network used for a call and for data communication. The packet transfer network can be freely switched.

According to the second aspect of the present invention, in a mobile portable terminal having a call function and a packet communication function, when a call is made to make a call, the circuit switching network is not connected due to the situation of the other party. In addition, the circuit switching network can be directly switched to the packet transfer network.

According to the present invention described in claim 3, there is provided a mobile communication system comprising the mobile portable terminal according to claim 1 or 2, and between the circuit switching network and the packet transfer network in response to a request from the mobile portable terminal. And a mobile communication network configured to include a base station having a switching unit for switching between.

A mobile communication method of the present invention according to claim 4 is a mobile communication system which provides a packet communication service and a circuit switching communication service, wherein a user moves from a sender side mobile portable terminal to another receiver side. When a call is made to the mobile portable terminal and there is no reception response from the receiver side mobile portable terminal, in response to a predetermined operation selected by the user,
Immediately, the sender-side mobile portable terminal is controlled to be in an input state for message transmission to the receiver-side mobile portable terminal by the packet transfer network, and the input message is transmitted by the user to the packet transfer network. Is transmitted to the receiver side mobile portable terminal via the control unit, and the sender side mobile portable terminal is controlled to be in a standby state.

According to the mobile communication method of the present invention as set forth in claim 5, in a mobile communication system which provides a packet communication service and a circuit switching communication service, during a call between the first and second mobile portable terminals. , The first mobile portable terminal is controlled so as to immediately enter the state for inputting a message to the second mobile portable terminal of the call destination by the packet transfer network in response to a predetermined operation selected by the user. The message input by the terminal is transmitted to the recipient-side mobile portable terminal via the packet transfer network in response to the user's transmission instruction operation, and the first mobile portable terminal automatically makes the second mobile portable terminal. Is controlled to reissue the call request by the switching network.

According to the mobile communication method of the present invention as set forth in claim 6, in a mobile communication system which provides a packet communication service and a circuit switching communication service, during communication between the first and second mobile portable terminals. , The first mobile portable terminal is controlled so as to immediately enter the state for inputting a message to the second mobile portable terminal of the call destination by the packet transfer network in response to a predetermined operation selected by the user. The message input by the terminal is transmitted to the receiver-side mobile mobile terminal via the packet transfer network by the user's transmission instruction operation, and the first mobile mobile terminal waits in response to the user's selection operation. The second mobile portable terminal is controlled to enter the state or to re-call the call request by the switching network.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] The present invention will be described in detail below with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of a mobile portable terminal which is an embodiment of the present invention. FIG. 2 is a block diagram showing a mobile communication system as an embodiment of the present invention.

The mobile portable terminal of the present invention is a portable telephone (capable of calling) having a packet communication function such as a PDC (digital portable telephone), and from the mobile portable terminal A of the caller,
When a call for the purpose of a call is made to the mobile terminal B of the recipient, the normal connection with the recipient cannot be established in the circuit switched network, that is, the recipient is already in a call state and the connection of the circuit switched network is established. If it has been, or when the recipient (mobile terminal B) is out of the service area, the sender can quickly switch to a data communication line such as e-mail using a packet transfer network. Also, after the start of a call, a mobile portable terminal having a control function capable of promptly switching to a circuit line for data communication such as e-mail using a packet transfer network or returning to the original circuit switching network as needed. Is. As shown in FIG. 1, the mobile portable terminal according to the present embodiment has an antenna U110 for transmitting and receiving data to and from a network, a radio / modulation demodulation unit U120 for modulating / demodulating data and converting it into a radio signal, and a control unit U13.
Voice call control unit U131 and channel switching control unit U
132, message edit control unit U133, call control unit U
134, a data memory unit U140 for storing an address book and message data, a speaker U for voice conversation
150, a microphone U160, an operation unit U170 that is actually operated by the user, and a display unit U180 that displays data typed in or received from the operation unit U170.

In the mobile communication system of the present embodiment shown in FIG. 2, only a plurality of mobile mobile terminals as described above and two mobile mobile terminals A: U01 and B: U06 are shown. A plurality of base stations (base station A: U02, base station B: U05 in the figure) provided with a switching function unit for switching between the circuit switching network and the packet transfer network in response to a request from the mobile portable terminal. (Only one of which is shown) is configured to include the mobile communication network. The base stations are connected by a circuit switching network U03 for voice communication and a packet transfer network U04 for data communication. The packet transfer network U04 is connected to the Internet U08 via the server U07. In the following, the user of mobile digit terminal A is user 1 and the user of mobile digit terminal B is user 2.

The usage pattern and operation of the first embodiment will be described. When the user 1 who is a caller uses the above-mentioned mobile portable terminal device to make a call to the receiver (user 2), the operation unit U1 which is a normal voice call procedure.
From 70, the telephone number input of the mobile portable terminal device of the user 2 who is the call destination or the telephone number data in the data memory unit U140 is selected, and the selected telephone number data is sent to the transmission control unit U134 in the control unit U130. Convert to dial tone signal, and communication processing and terminal monitoring control unit U1
The dial tone signal is transmitted to the wireless and modem unit U via 35.
After D / A conversion at 120, the circuit switching network U03 is notified via the antenna U110 (calling information transmission) circuit switching network U
At 03, the mobile portable terminal B: U06 of the user 2 who is the dial partner is called.

After the circuit switching network U03 establishes a communication channel connection, the circuit switching network U03 also establishes a communication channel with the mobile portable terminal B of the user who is the receiver, and calls the mobile portable terminal B. When an incoming call arrives, the mobile phone B: U06 rings.

The called user 2 is a mobile portable terminal B:
Hook-off is performed by the key of the operation unit U170 of U06, and a voice call is connected by the circuit switching network U03,
A conversation is held between the user 1 and the user 2 using the mobile portable terminal.

The mobile terminal according to the present embodiment is configured so that it can freely switch between a circuit switching network used for telephone calls and a packet transfer network used for data communications.
Therefore, when data communication such as e-mail in a document is required during a call, one of the callers switches from the call to the e-mail communication. Therefore, a specific key on the operation unit U170 of his / her mobile terminal is pressed. Manipulate. In response to this operation, the voice call control unit U131 disconnects the call (connection) of the circuit switching network U03 connected by the voice call, and the channel switching control unit U132 controls the message edit control unit U133. Switch to automatically edit mail contents.

Here, a new mail content is newly created under the control of the message edit control unit U133, or a desired one of the existing message mails stored in advance in the data memory unit U140 is selected. Then, the message edit control unit U133 selectively sets whether to newly set the mail address or from the telephone directory list stored in the data memory unit U140. The transmission control unit U134 automatically makes a call to the packet transfer network U04 to the selected and set mail address, and connects to the packet transfer network U04.

The mobile portable terminal A: U01 on the side of the user 1 having established the connection with the packet transfer network U04 is set by the mobile portable terminal A: U01 to the mail address of the mobile portable terminal B: U06 owned by the user 2. The message data is sent to the mobile terminal B: U06, the document mail is provided to the user 2 side, and after the transfer of all necessary data is completed, the packet transfer network U04 is disconnected (packet communication channel disconnection). ). If necessary settings are made by a predetermined operation, after disconnecting the packet communication channel, the voice call between the user 1 and the user 2 via the circuit switching network U03 can be resumed.

Further, since the mobile terminal of the present embodiment is configured so as to be freely switchable between the circuit switching network used for communication and the packet transfer network used for data communication as described above, If the circuit switched network connection is not established due to the situation of the other party when you make a call to make a call, immediately switch directly from the circuit switched network to the packet transfer network and send a message by e-mail. I can tell.

For example, as described above, the user 1 operates the mobile portable terminal A to transmit calling information, and the circuit switching network U
When the mobile portable terminal B: U06 of the user 2 who is the dialing partner is called at 03, when the user 2 is already in the call state and connected to the circuit switching network, or the mobile portable terminal B of the user 2 If a normal connection cannot be made in the circuit switching network, such as when the service is out of service area, promptly switch to the packet transfer network and send the message as an e-mail in the same procedure as described above.

Next, the operation of this embodiment will be described with reference to FIGS. 1, 2, and 3. FIG. 3 is a flowchart illustrating the flow of operations by the user and the operation of each device according to this embodiment.

First, the user 1 starts up the mobile portable terminal and performs a connection procedure (S301). The user 1 selects whether to make a call or send an email (S302).
When performing mail transmission (by packet communication), a mail text is input according to a predetermined operation procedure from the operation unit U170 (S303). That is, the message edit control unit U13
3 is used to input / edit a message text, and as a destination, new mail address is set or data memory unit U14
Address setting is performed by selecting the telephone book data to be stored as 0. Again, the packet communication channel is established with the packet transfer network U04 via the mobile portable terminal A: U01 and the base station A: U02 by the setting procedure from the operation unit U170 (S304).

If the connection destination is a personal computer, server: U07
Internet via TCP / IP protocol is connected via U.S.A. to U08, and a mail is transmitted by connecting to the personal computer of PC user U09 via IP (provider) (S305). If the connection partner is the mobile portable terminal B, the mobile portable terminal B via the base station B: U05:
The mail is transmitted to U06 (S305), and when the transmission is completed, the packet communication channel is disconnected (S306).
This series of processes is a general flow of mail communication.

On the other hand, when selecting a call (voice channel) in the above-mentioned call or mail transmission selection (step S302), the user inputs the telephone number of the destination (call destination) of the operation unit U170. The transmission control unit U13
The telephone number calling process is performed under the control of No. 4 (S307).
The mobile portable terminal A establishes a line with the circuit switching network U03 via the base station A, and the mobile portable terminal B from the base station B: U06.
Is called to prompt the user 2 to respond (S30
8).

User 2 performs a response operation (S309: YE
If the S) line is connected, the call starts (S31
1). However, if the user 2 does not respond due to absence, or if the call cannot be made outside the service area (including power OFF) (S309: NO), the user 1 uses the line between the circuit switching network U03 and the mobile portable terminal A: U01. The cutting is promptly performed (S310). In the mobile portable terminal A, the channel switching control unit U132 has the voice call control unit U131 according to the preset setting.
Control is directly switched to the message edit control unit U133, and the user 1 shifts to the mail text input (S30).
3).

After that, as described above, the message edit control unit U133 edits the message text and sets a new mail address or selects the telephone directory data to be stored in the data memory unit U140, and sets the operation unit U170 again. According to the procedure, the packet communication channel is established between the mobile portable terminal A and the base station A and the packet transfer network U04 (S304), and the mobile portable terminal B: U06 of the connection partner is mailed via the base station B: U05. Send (S3
05), after the transmission is completed, the user 1 disconnects the packet communication channel (S306).

Next, description will be given using a flow sequence diagram showing the flow of signals between the respective devices in FIG. FIG. 4 shows the flow of processing in the case where communication switching is performed between packet communication after mobile phone A and mobile phone B have already started a call. First, since the user 1 calls the user 2 from the mobile portable terminal A, a telephone number call F401 is made, the circuit switching network makes a call request F451 to the mobile portable terminal B, and the mobile portable terminal B makes a call response by F452. The circuit switched network is a telephone line connection F4 with the mobile portable terminal A.
After performing 02, calls F403 and 453 are performed between the mobile portable terminal A and the mobile portable terminal B via the circuit switching network.

For example, when the user 1 sends an e-mail to the user 2 side during a call, the mobile portable terminal A once performs hook-off processing, notifies the call line disconnection F404 to the circuit switching network, and the circuit switching network The mobile portable terminal B is notified that the call line disconnection F454 has occurred.

Thereafter, the mobile portable terminal A shifts to the electronic mail function, and when the user 1 completes the preparation of the outgoing mail and makes a call operation to start the transmission, the mobile portable terminal A makes a packet communication registration request at F406. Sending out to the packet transfer network, the packet transfer network activates a packet communication channel with the mobile portable terminal A, sends a packet communication registration response to the mobile portable terminal A in F407, and also pages the mobile portable terminal B in F455. The paged mobile mobile terminal A sends a packet communication registration request to the network at F456, and the packet transfer network that has established a packet communication channel with the mobile mobile terminal B sends a packet communication registration response at F457.

After the packet communication channel is established, the mobile portable terminal A sends an electronic mail to the network at F408. The packet communication channel temporarily stores the data and then F458
Send an e-mail to mobile portable terminal B at. After the transmission of the e-mail to the mobile portable terminal B is completed, the packet transfer network makes a packet communication disconnection request to the mobile portable terminal A by F409, and receives a packet communication disconnection confirmation F410 from the mobile portable terminal A. . After confirming the packet communication registration cancellation request F459, the mobile communication terminal B transmits a packet communication registration cancellation response F460.

The effect of the first embodiment described above is that the message to be transmitted can be transmitted to the receiver without any troublesome operation regardless of the situation of the called party (absent call or out of service area).

The reason is the situation of the recipient who should receive the call by telephone (confirmation by busy tone or guidance)
Based on the above, it becomes possible for the mobile portable terminal to automatically switch to the e-mail mode based on a simple operation by the user, and to utilize the packet transfer network to easily convey the mail to the receiving user.

The second effect is that important information can be provided to the other party during the call as character information even during the call. The reason is that the circuit switching network during the call can be easily switched to the packet transfer network easily, and the state of the mobile terminal can also be switched to e-mail so that it can automatically connect to the circuit switching network even after the mail transmission is completed. This is because it is configured.

In the present embodiment, an example of a case in which communication is switched between packet communication after mobile phone A and mobile mobile terminal B have already started and the communication is continued again will be described with reference to FIGS. 5 and 6. Explain. FIG. 5 is a flowchart illustrating the flow of operations by the user and the operation of each device. FIG. 6 is a flow sequence diagram showing the flow of signals between the devices.

First, the user 1 starts up the mobile portable terminal and performs a connection procedure (S501). The user 1 selects whether to make a call or send an email (S502).
When performing mail transmission (by packet communication), a mail text is input according to a predetermined operation procedure from the operation unit U170 (S503). That is, the message edit control unit U13
3 is used to input / edit a message text, and as a destination, new mail address is set or data memory unit U14
Address setting is performed by selecting the telephone book data to be stored as 0. Further, a packet communication channel is established with the packet transfer network U04 via the mobile portable terminal A: U01 and the base station A: U02 by the setting procedure from the operation unit U170 (S304).

If the connection destination is a personal computer, server: U07
Internet via TCP / IP protocol is connected via U.S.A. to U08, and the mail is transmitted by connecting to the personal computer of PC user U09 via IP (provider) (S505). If the connection partner is the mobile portable terminal B, the mobile portable terminal B via the base station B: U05:
A mail is transmitted to U06 (S505), and when the transmission is completed, the packet communication channel is disconnected (S506).
This series of processes is a general flow of mail communication.

On the other hand, in the case of selecting a call (voice channel) in the above-mentioned call or mail transmission selection (step; S502), the user inputs the telephone number of the destination (call destination) of the operation unit U170. The transmission control unit U13
The telephone number calling process is performed under the control of No. 4 (S507).
The mobile portable terminal A establishes a line with the circuit switching network U03 via the base station A, and the mobile portable terminal B from the base station B: U06.
Is called to prompt the user 2 to respond (S50
8).

User 2 is absent or out of range (power supply OF
If a call cannot be made (including F) (S509), a line disconnection between the circuit switching network U03 and the mobile portable terminal A: U01 S5
10 is performed promptly, and the channel switching control unit U132 changes from the voice call control unit U131 to the message edit control unit U13.
3, the mail text is input (S503), and the message edit control unit U133 edits the message text and sets a new mail address or the data memory unit U14.
Select the phonebook data to be stored with 0, and then again on the operation unit U
According to the setting procedure from 170, the mobile portable terminal A and the base station A
A packet communication channel is established with the packet transfer network U04 via the network (S504), and the connection partner is the mobile portable terminal B.
If so, the mobile portable terminal B: U via the base station B: U05
The mail is sent to the mail server 06 (S505), and after the sending is completed, the packet communication channel is disconnected (S506). The process up to this point is similar to that of the above-described embodiment.

The user 2 side selects the line connection (S50
9: YES) When a call start operation is performed (S511)
Call each other (conversation, S512) through the circuit switching network U03 connection. When a user (for example, user 1) needs to send an email during a call (email o
r End call selection; S513), and a predetermined operation is promptly performed from the operation unit U170. By this operation, mobile mobile terminal A: U0
1 performs the line disconnection S514, and the channel switching control unit U1
Reference numeral 32 directly switches from the voice call control unit U131 to the message edit control unit U133. The user 1 inputs a mail text. The message edit control unit U133 edits the message text and newly sets the mail address or selects the telephone directory data to be stored in the data memory unit U140, and again performs the predetermined operation of mail transmission from the operation unit U170 (S515).

A packet communication channel with the packet transfer network U04 is established via the mobile portable terminal A and the base station A (S516), and if the connection partner is the mobile portable terminal B, the mobile portable terminal via the base station B: U05. The mail is transmitted to the terminal B: U06 (S517), and after the transmission is completed, the packet communication channel is disconnected (S518). Immediately after disconnecting the packet communication channel, the process returns to the telephone number calling (step S507) for reconnecting the call, and the call is resumed. After the conversation ends (email or end call selection; S513)
When the call end operation is performed at, the call ends (S510), and the mobile portable terminal shifts to the standby operation.

Next, the flow sequence diagram of FIG. 6 will be described. FIG. 6 is a flow of processing when communication switching is performed between the mobile portable terminal A and the mobile portable terminal B after packet communication has already started. First, since the user 1 calls the user 2 from the mobile portable terminal A, the telephone number calling F601
Then, the circuit switched network makes a call request to the mobile portable terminal B at F651, the mobile portable terminal B makes a call response at F652, and the circuit switched network establishes a call line connection F602 with the mobile portable terminal A. Thereafter, calls F605 and 653 are made between the mobile portable terminal A and the mobile portable terminal B via the circuit switching network.

When the user 1 sends an e-mail to the user 2 side during a call, the mobile portable terminal A performs hook-off processing, notifies the call line disconnection F604 to the circuit switching network, and the circuit switching network moves to the mobile phone. The terminal B is notified that the call line disconnection F654 has occurred.

Thereafter, the mobile portable terminal A shifts to the electronic mail function, and when the user 1 completes the preparation of the outgoing mail and makes a call operation to start the transmission, the mobile portable terminal A requests the packet communication registration at F605. Sending out to the packet transfer network, the packet transfer network activates a packet communication channel with the mobile portable terminal A, sends a packet communication registration response to the mobile portable terminal 1 in F607, and paging the mobile portable terminal 2 in F655. The paged mobile portable terminal B sends a packet communication registration request to the network at F656, and the packet transfer network that has established a packet communication channel with the mobile portable terminal 2 sends a packet communication registration response at F657.

After the packet communication channel is established, the mobile portable terminal 1 sends an electronic mail to the network at F608. The packet communication channel temporarily stores the data and then F658.
Send an e-mail to mobile portable terminal B at. After the transmission of the e-mail to the mobile portable terminal B is completed, the packet transfer network issues a packet communication disconnection request to the mobile portable terminal 1 by F609 and receives a packet communication disconnection confirmation F610 from the mobile portable terminal A. . After confirming the packet communication registration cancellation request F659, the mobile communication terminal B transmits a packet communication registration cancellation response F660.

Then, the telephone number call F611 is made again, the circuit switching network makes a call request to the mobile portable terminal B at F661, the mobile portable terminal B makes a call response at F662, and the circuit switching network makes a mobile portable terminal. Call line connection with A F
After the step 612 is performed, the mobile portable terminal A and the mobile portable terminal B are
Calls F615 and 663 are made between the two parties via the circuit switching network.

At the end of the call, the mobile portable terminal A performs hook-off processing, notifies the call line disconnection F614 to the circuit switching network, and the line switching network causes the call disconnection F664 to the mobile portable terminal B. To notify.

Second Embodiment Next, a mobile communication system different from the one described above will be illustrated. FIG. 7 is a block diagram showing a mobile communication system as another embodiment of the present invention. The system of FIG. 7 has basically the same system configuration as that of FIG. 2, but differs in that switching units U10 and U11 are provided on the base station A side and the base station B side, respectively. The reference numerals of the respective parts are the same as those in FIG. The configuration and operation of the parts other than U10 and U11 are the same as those described above, and repeated description will be omitted.

In the second embodiment as well, just as in the previous embodiment, the message to be transmitted can be transmitted to the receiver regardless of the situation of the called party (absent call or out of service area) without any troublesome operation. Further, there is an effect that important information can be provided to the other party during the call as character information even during the call.

In this system, the call switching network U03 and the packet transfer network U04 are constantly connected to each other, and one of the users in the call operates his / her own mobile terminal in the same manner as a call waiting call. By switching the network on the system side, it is possible to easily switch frequently between mail and call without a time lag.

[0052]

The first effect of the present invention is that the message to be transmitted can be transmitted to the receiver without any troublesome operation regardless of the situation of the called party (absent call or out of service area). The reason for this is that you can automatically receive e-mail using the packet transfer network by automatically switching to e-mail mode by a simple operation based on the status of the recipient who should receive the call by calling (confirmation by busy tone or guidance). This is because it becomes possible to inform the user.

The second effect is that important information can be provided as character information during a call. The reason is that the circuit switching network during a call can be easily switched to the packet transfer network easily, and the state of the mobile terminal can also be switched to e-mail and the circuit switching network can be automatically connected even after the mail transmission is completed. Is.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a mobile portable terminal as an embodiment of the present invention.

FIG. 2 is a system block diagram showing an outline of an embodiment of a mobile communication system of the present invention.

FIG. 3 is a flowchart illustrating a flow of an operation by a user and an operation of each device according to the same embodiment.

FIG. 4 is a flow sequence diagram showing a signal flow between each device in the embodiment.

FIG. 5 is a flowchart illustrating a flow of an operation by a user and an operation of each device according to the same embodiment.

FIG. 6 is a flow sequence diagram showing a signal flow between each device in the embodiment.

FIG. 7 is a system block diagram showing an outline of another embodiment of the mobile communication system of the present invention.

[Explanation of symbols]

U01 ... Mobile handheld terminal A U02 ... Base station A U03 ... Circuit switching network U04 ... Packet transfer network U05 ... Base station B U06 ... Mobile mobile terminal B U07 ... server U08 ... Internet U110 ... Antenna U120 ... Radio and modulation / demodulation unit U130 ... Control unit U131 ... Voice call control unit U132 ... Channel switching control unit U133 ... Message editing control unit U134 ... Transmission control unit U140 ... Data memory section U150 ... Speaker U160 ... Mike U170 ... Operation part U180 ... Display

Claims (6)

[Claims] 1. A mobile portable terminal having a call function and a packet communication function, wherein a circuit switching network used for a call and a packet transfer network used for data communication can be freely switched. Mobile handheld device. 2. A mobile mobile terminal having a call function and a packet communication function, when a call is made to make a call, and the connection of the circuit switched network is not established due to the situation of the other party, packet transfer from the circuit switched network. A mobile portable terminal characterized in that it can be directly switched to the network. 3. A mobile station comprising the mobile portable terminal according to claim 1 and a base station provided with a switching unit for switching between a circuit switching network and a packet transfer network in response to a request from the mobile portable terminal. And a mobile communication network which is provided. 4. In a mobile communication system that provides a packet communication service and a circuit switching communication service, a user calls a mobile mobile terminal on the other side from a mobile mobile terminal on the caller side, and the mobile communication terminal on the receiver side moves. If there is no reception response from the mobile terminal, the mobile mobile terminal on the caller side immediately enters an input state for message transmission via the packet transfer network to the mobile mobile terminal on the receiver side in response to a predetermined operation selected by the user. In response to the user's transmission instruction operation, the input message is transmitted to the recipient-side mobile portable terminal via the packet transfer network, and the originator-side mobile portable terminal enters the standby state. A mobile communication method characterized by being controlled by the following. 5. In a mobile communication system for providing a packet communication service and a circuit switching communication service, the first mobile portable terminal is provided with a predetermined value selected by a user during a call between the first and second mobile portable terminals. In response to the operation, the second mobile mobile terminal of the call destination is immediately controlled to be in an input state for message transmission by the packet transfer network, and the input message of the first mobile mobile terminal is transmitted by the user. Is transmitted to the mobile terminal of the receiver side via the packet transfer network, and the first mobile terminal automatically re-calls the call request by the switching network to the second mobile terminal. A mobile communication method characterized by being controlled. 6. In a mobile communication system for providing a packet communication service and a circuit switching communication service, the first mobile portable terminal is provided with a predetermined one selected by a user during a call between the first and second mobile portable terminals. In response to the operation, the second mobile mobile terminal of the call destination is immediately controlled to be in an input state for message transmission by the packet transfer network, and the input message of the first mobile mobile terminal is transmitted by the user. Is transmitted to the recipient-side mobile portable terminal via a packet transfer network so that the first mobile portable terminal enters a standby state or the second mobile portable terminal in response to a user's selection operation. A mobile communication method is characterized in that it is controlled to recall a call request by the switching network.