JP3247136B2 - Wireless communication device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio communication device used as a mobile station in a mobile radio communication system such as a car telephone system, a portable telephone system, and a cordless telephone system. The present invention relates to a radio communication device employed.

[0002]

2. Description of the Related Art In recent years, a system employing a dual mode wireless communication system has been proposed as one of mobile wireless communication systems. The dual mode is a system using both the analog mode and the digital mode.

In the analog mode, a carrier on the transmitting side is FM-modulated with a voice signal and data using a voice signal and data, for example, and the modulated wave received from the transmitting side is received and FM-demodulated on the receiving side. This is a method for reproducing voice and data. On the other hand, in the digital mode, a voice signal and data are encoded by a communication device on the transmission side, and a carrier is digitally modulated by, for example, a π / 4 shift DQPSK system using the encoded signal and transmitted. In this method, after receiving the modulated wave sent from the transmitting side and digitally demodulating the signal, the demodulated signal is decoded to reproduce the audio signal and data. In the radio communication in the digital mode, a method is used in which a plurality of time slots are time-division multiplexed and transmitted at one radio frequency.

FIG. 10 shows an example of the configuration of this type of system. This system includes a control station CS connected to a wired communication network NW via a wired line CL, and a plurality of base stations BS1, BS2, connected to the control station CS via wired lines CL1 to CL3, respectively. , And a plurality of mobile stations MS1, MS2,. The base stations BS1, BS2,...
2, ... are formed. The mobile stations MS1, MS2,.
The radio zones E1, E of the base stations BS1, BS2,...
Are connected to each of the base stations BS1, BS2,... Via a radio communication channel.

In such a configuration, for example, the mobile station M
When a calling operation is performed in S1, this mobile station MS
From 1, a call signal is transmitted using a control channel called an access channel (A-CH). At this time, each of the base stations BS1, BS2,... Monitors the arrival of the call signal by the access channel. In this state, if, for example, the call signal is received by the base station BS1, the base station BS1 selects a vacant communication channel from a plurality of analog communication channels and digital communication channels owned by the own station. The selected communication channel is inserted into the call response signal and notified to the call originating mobile station MS1. Then, the selected communication channel is set between the base station BS1 and the mobile station MS1, and after this communication channel is set, wireless communication becomes possible thereafter. In other words, whether to select the analog mode or the digital mode as the wireless communication method depends on
In general, it is determined in the base stations BS1, BS2,... According to the idle state of the radio communication channel.

[0006] Recently, it has been proposed in such a system that a radio communication system can be selected in a mobile station. In this method, for example, a mode designation switch is provided in the mobile station, and the mode designated by this switch is notified to the base station at the time of calling or receiving a call, and the base station transmits an available communication channel according to the notified mode. And set the call channel. Also, during a call, the operation of the mode designation switch is monitored,
When this switch is operated, a mode change request signal is sent to the base station, and the base station searches for a free wireless communication channel and changes the communication channel in accordance with this request.

[0007]

However, the mobile station apparatus conventionally considered to realize such a system has the following problems to be improved. That is, it has recently been considered to connect a facsimile apparatus to a mobile station apparatus so that mobile facsimile communication can be performed. As a wireless communication method in this case, an analog mode that can transmit with low error for analog facsimile communication of the G2 or G3 standard is preferable. For this reason, for example, when shifting to the mobile facsimile communication with the digital mode set, the user has to perform the following operation. That is, first, the analog mode is designated and input by operating the mode designating switch of the mobile station apparatus, thereby handing off the radio communication system from the digital mode to the analog mode. Then, after confirming that the mode has been switched to the analog mode, a function switch for data transmission provided in the mobile station device is operated, whereby the facsimile device is connected to the radio communication channel via the mobile station device. . Finally, the transmission switch of the facsimile apparatus is operated to start transmission.

[0008] On the other hand, the same operation is required when trying to carry out confidential communication or digital data transmission. That is, it is necessary to set the wireless communication system to the digital mode in order to perform confidential communication and digital data transmission. Therefore, for example, when attempting to perform a confidential call or digital data transmission from a state in which the analog mode is set, the user first operates the mode designation switch to handoff the wireless communication system to the digital mode. After that, it is necessary to operate a function switch for confidential communication or digital data transmission.

As described above, in the conventional apparatus, when performing a specific function communication in which the mode of the wireless communication system is determined, such as facsimile communication, confidential communication, or digital data transmission, first, the wireless communication is performed. It was necessary to perform an operation for changing the communication mode to a corresponding mode, and then to perform an operation for performing functional communication such as the facsimile communication and the secret communication. For this reason, the number of operations becomes large for the user, which makes the operation troublesome, and as a result, erroneous operations are likely to occur.

The present invention has been made in view of the above circumstances, and has as its object to perform a simple operation without performing a lot of troublesome operations and to perform a specific function communication in which a wireless communication system is determined. It is an object of the present invention to provide a dual-mode wireless communication device that enables a shift and thereby improves operability.

[0011] To achieve the above object, the present invention provides:
In a wireless communication device that includes a plurality of wireless connection methods and performs wireless connection by selectively using these wireless connection methods,
Function communication request input means for inputting an execution request of a specific function communication specialized for a wireless connection method, and execution of the specific function communication by the function communication request input means during the wireless connection in the first wireless connection method When a request is input, a second wireless connection method for executing the input specific function communication is selected,
And a function communication control means for supplementing and communicating with a wireless line communicating with the second wireless connection method.

Further, according to the present invention, the function communication control means
When an execution request for a specific function communication is input, whether or not the currently set wireless communication method matches a predetermined wireless communication method corresponding to the specific function communication for which the execution request is input Is determined, and if it is determined that they do not match, control is performed to set a predetermined wireless communication method corresponding to the specific function communication, and if they match, the control corresponds to the specific function communication. In addition, the control for setting a predetermined wireless communication method is omitted, and the control for performing the specific function communication is performed.

[0013]

As a result, according to the present invention, when an execution request for a specific function communication whose radio communication system is predetermined such as analog facsimile communication, secret communication or digital data communication is input, the setting is first performed. Is changed to the wireless communication system required for the functional communication requested to be performed, and then control for performing the functional communication is started. Therefore, when performing a specific function communication, the user can omit any operation for changing the wireless communication system to a mode corresponding to the function communication, and can immediately perform an operation for immediately performing the function communication. It is possible to do. For this reason, the operability is greatly improved as compared with the related art in which the operation of changing the wireless communication system was required. In addition, the occurrence of erroneous operations is reduced.

Further, when a request for executing a specific function communication is input, it is determined whether or not the currently set wireless communication system matches the wireless communication system required for the specific function communication. Only when it is determined that the wireless communication method required for the specific function communication is set, control is performed. That is, control for changing the setting of the wireless communication system is performed only when the wireless communication system needs to be changed. For this reason, when the wireless communication system required for the specific function communication has already been set, useless control is not performed, thereby, for example, a time loss in the control processing in the mobile station apparatus and the base station apparatus. Is prevented and efficient control processing can be performed.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments. FIG. 1 shows a configuration of a mobile station apparatus according to one embodiment of the present invention.

In FIG. 1, a radio communication signal transmitted from a base station (not shown) in a predetermined time slot is transmitted through a receiving circuit (R) via an antenna 1 and a duplexer (DUP) 2.
X) 3 where the frequency synthesizer (SY)
N) The signal is combined with the local oscillation signal corresponding to the digital communication channel output from 4 and converted into an intermediate frequency signal. The received intermediate frequency signal is digitally demodulated after frame synchronization and bit synchronization are established by a digital modulation / demodulation circuit (MOD) 6. The synchronization information obtained by the frame synchronization and the bit synchronization is supplied to the control circuit 20. The digital demodulated signal output from the digital modulation / demodulation circuit 6 includes a digital communication signal and a digital control signal, and the digital control signal is supplied to the control circuit 20 and identified. On the other hand, the digital communication signal is supplied to an equalizer (EQL) 7, where the demodulated waveform signal is equalized.
Error correction decoding is performed by an error correction code decoding circuit (CH-COD) 8. Then, a speech codec (SP-CO
D) After being decoded in 9 and returned to an analog call signal, the signal is supplied to a receiver 11 via a voice switch 10 and a changeover switch 18, and is output from the receiver 11 in a loudspeaker.

On the other hand, the transmitted voice of the speaker is collected by a transmitter 12 and converted into a voice signal, and then input to a voice code decoding circuit 9 via a changeover switch 19 and a voice switch 13. . The digital transmission signal obtained by this encoding is error-correction-coded by an error correction code decoding circuit 8 together with a digital control signal output from a control circuit 20, and then input to a digital modulation / demodulation circuit 6. In the digital modulation / demodulation circuit 6, a modulation signal having an intermediate frequency corresponding to the digital transmission signal supplied from the error correction code decoding circuit 8 is generated and input to the transmission circuit (TX) 5. In the transmitting circuit 5, the modulated signal is combined with a local oscillation signal corresponding to the digital communication channel output from the frequency synthesizer 4 and converted into a high-frequency signal. This high-frequency signal is amplified through the duplexer 2 after high-frequency amplification. The signal is transmitted from the antenna 1 to the base station.

The mobile station apparatus of this embodiment has a configuration applicable to a system in which a digital system and a current analog system coexist, that is, a dual mode mobile radio communication system. That is, when wireless communication is performed in the analog mode instead of the digital mode, the voice switches 10 and 13 are controlled by the control circuit 20 so that the voice code decoding circuit 9 controls the analog voice processing circuit (A-AU).
D) Switch to the 14 side. The received intermediate frequency signal output from the receiving circuit 3 is input to an analog voice processing circuit 14, where it is FM-demodulated and then voice-amplified, and then received via a voice switch 10 and a changeover switch 18, respectively. And output from the receiver 11 as a loudspeaker. On the other hand, the transmission signal output from the transmitter 12 is input to the analog audio processing circuit 14 via the changeover switch 19 and the audio switch 13 respectively, where it is converted into an intermediate frequency signal and then transmitted to the transmission circuit 5.
Is converted into a high-frequency signal and transmitted from the antenna 1.

Further, the mobile station device of the present embodiment has a configuration for connecting an external terminal device such as a facsimile device or a digital data terminal device. That is, the switches 18 and 1 are connected between the voice switches 10 and 13 and the handsets 11 and 12 as described above.
9 is interposed. These changeover switches 18 and 19
Correspond to the handset 11, 1 according to the switching instruction of the control circuit 20.
2 and an external terminal device, alternatively, voice switches 10 and 13
Is to be connected to. FIG. 1 shows a case where a facsimile device 30 is connected as an external terminal device. In addition,
Reference numeral 31 denotes a terminal for connecting the facsimile apparatus 30 to a mobile station apparatus.

Reference numeral 15 denotes an input display unit. The input display unit 15 includes a mode designation switch 51 and a data communication switch 52 in addition to a dial key and a transmission switch.
A function switch such as a secret switch 53 and a liquid crystal display (LCD) 54 are provided. The mode designation switch 51 is used to selectively designate an analog mode, a digital mode, or a dual mode in which a mode is not particularly designated as a wireless communication system. The data communication switch 52 is used to shift from a voice call state to facsimile communication. Further, the secret talk switch 53 is used to shift from the normal talk state to the secret talk state. The LCD 54 displays various information indicating a communication state. Reference numeral 16 denotes a power supply circuit which generates a desired operating voltage Vcc based on the output of the battery 17 and supplies the generated operating voltage Vcc to the above circuits.

The control circuit 20 includes, for example, a microcomputer as a main control unit. The control circuit 20 includes a mode change control unit 21 and a function communication unit in addition to ordinary control units such as connection control and call control for outgoing / incoming calls. Control means 22
And

When the mode specifying switch 51 is operated during a call, the mode change control means 21 executes a process for changing the wireless communication system to the mode specified by the switch according to a predetermined procedure.

The function communication control means 22 includes a specific function switch, that is, a data communication switch 52 for facsimile communication or a secret communication switch 53 for secret communication.
Is operated, it is first determined whether or not the mode required for the function communication designated by these switches matches the currently set mode. If the modes match, control is directly transferred to the facsimile communication or privacy communication.If the modes do not match, the mode change control is executed, and then the facsimile communication or privacy communication is performed. The function shifts to control for communication. Next, the operation of the mobile station apparatus configured as described above will be described according to the control procedure of the control circuit 20.

In the standby state (non-communication state), the control circuit 20 monitors the arrival of an incoming call and the occurrence of a call in steps 2a and 2b, respectively, as shown in FIG. Operation monitoring. When the mode designating switch 51 is operated in this state, the control circuit 20 proceeds to step 2d and stores the mode designated and input by the mode designating switch 51 in the RAM in the control circuit 20. The display pattern of the mode (request mode) input and specified is displayed on the LCD 52.

On the other hand, it is assumed that the user performs a calling operation in this state. Then, the control circuit 20 executes line connection control according to the outgoing call as follows. That is, as shown in FIG. 3, first, at step 3a, a control channel called an access channel is captured and set, and then at step 3b, a designated input mode is read from the RAM, and a call signal including information indicating the designated input mode is transmitted. Created in step 3c. Then, the generated call signal is transmitted to the base station in step 3d. After transmitting the call signal, the control circuit 20 monitors the return of the call response signal from the base station in step 3e. And
When the call response signal is returned, the corresponding communication channel is captured and set according to the communication channel instruction information inserted in the call response signal. Then, the control circuit 20 determines the set communication channel, and shifts to the communication control according to the analog mode or the digital mode according to the result of the determination.

For example, it is assumed that the dual mode is specified as the request mode, and the base station instructs the analog communication channel in response thereto. Then, the control circuit 20 sets the operation mode in the device to the analog mode, captures and sets the analog communication channel specified by the base station, and shifts to analog communication control. Therefore, the user can perform a telephone call or communication in the analog mode thereafter. On the other hand, when a digital communication channel is specified by the base station, the control circuit 20 captures and sets the specified digital communication channel, and then shifts to digital communication control.

When the operation shifts to the call control, the control circuit 2
In step 4a, step 4b, step 4b, and step 4c repeatedly monitor the call termination, monitor the operation of the mode designation switch, and monitor the operation of the specific function switch, respectively, as shown in FIG.

Then, in this state, the user operates the mode designation switch 51 to change the mode during the call, and
It is assumed that a mode different from the currently set mode is designated and input. Then, the control circuit 20 executes the mode change control shown in FIG. That is, first, in step 1a, a mode change request message is created, and the message is transmitted to the base station via the analog communication channel being set by interrupting or superimposing this message on the transmission voice signal. Then, after transmitting the mode change request message, while monitoring the time in step 1b, step 1
At step c, the base station monitors the return of the change request acknowledgment (ACK) response message from the base station. And for a certain time, for example, 200m
When an ACK response message is returned from the base station within sec, the process proceeds to steps 1d and 1e, where the arrival of a handoff command and the arrival of other commands are repeatedly monitored. In this state, assuming that a handoff command has arrived from the base station, the control circuit 20 proceeds to step 1f to perform a mode switching process.
That is, the instruction information of the communication channel is inserted in the handoff instruction, and the control circuit 20 captures a new communication channel according to the instruction information and adjusts the transmission / reception timing of this channel as necessary. Thereafter, the currently set communication channel is switched to the new communication channel. At the same time, the voice switches 10 and 13 are switched according to whether the communication channel is analog or digital. Thus, the switching of the communication channel by the operation of the mode designation switch 51 is performed,
Thereafter, the user can talk or communicate via the new switched communication channel.

If, for example, the ACK response message is not returned within a predetermined time (200 msec), the control circuit 20 proceeds to step 1g, where the number of times of sending the mode change request message reaches three. It is determined whether or not it has been performed. If the number has not reached three, the process returns to step 1a and retransmits the mode change request message.
The transmission of the mode change request message is repeated up to three times until the return of the ACK response message is confirmed. If the ACK response message is not returned even after sending the mode change request message three times, the base station determines that the mode is unacceptable or the operation is abnormal, and proceeds to step 1h. After performing abnormal processing such as generating a ringing sound, the process returns to the call control in the analog mode.

After returning the ACK response message, if another command such as a disconnection command arrives instead of a handoff command as shown in FIG.
0 returns to the call control from step 1e, and executes processing according to the above other commands.

On the other hand, it is assumed that the user presses a specific function switch to shift to a specific function communication such as facsimile communication or secret communication during a call. Then, the control circuit 20 detects the operation of the specific function switch in step 4c and shifts to step 4d.
To determine the type of the operated specific function switch, that is, whether it is the data communication switch 52 for facsimile communication or the secret communication switch. Then, the processing shifts to the corresponding function communication control according to the determination result.

For example, it is assumed that the user has pressed the data communication switch 52 to shift from telephone communication to facsimile communication. Then, the control circuit 20 executes the data communication switching control according to the procedure shown in FIG. That is, the control circuit 20 first determines whether or not the currently set wireless communication system is in the digital mode in step 5a. And, for example, if analog mode is being set,
It is determined that it is possible to shift to facsimile communication as it is, and the process shifts to step 5h, where the changeover switches 18, 19 are switched from the handset 11, 12 to the facsimile device 30.

On the other hand, it is assumed that the radio communication system currently set is the digital mode. Then, the control circuit 20 determines that it is necessary to change the wireless communication system to an analog mode suitable for facsimile communication, and executes mode change control first. That is, the control circuit 20
As described above with reference to FIG. 5, first, the process proceeds to step 5b, where a mode change request message for requesting a change to the analog mode is created, and this message is transmitted to the base station. Then, after transmitting the mode change request message, while monitoring the time in step 5c, a change request acknowledgment (ACK) from the base station is performed in step 5d.
Monitors the return of the response message and waits for a certain
When the ACK response message is returned from the base station within sec), the arrival of the handoff command is monitored in step 5e. In this state, assuming that a handoff command has arrived from the base station, the control circuit 20 proceeds to step 5g and performs mode switching processing. That is, the instruction information of the communication channel is inserted in the handoff command, and the control circuit 20 captures and sets a new communication channel according to the instruction information. At this time, the control circuit 20
Determines whether the new communication channel is an analog communication channel. Then, as a result of this determination, if it is an analog communication channel, it is determined that preparations for shifting to facsimile communication have been completed, and the process shifts to step 5h, where the changeover switches 18 and 19 are turned on and off.
Switching from the 12 side to the facsimile machine 30 side.

Thus, the facsimile apparatus 30 is connected to the analog communication channel via the mobile station apparatus, and if the user presses the transmission switch of the facsimile apparatus 30 in this state, the facsimile apparatus 30 will be in the facsimile transmission state thereafter. During the facsimile communication, the control circuit 20 of the mobile station device monitors the arrival of the end signal from the base station in step 5i. Then, when a call termination signal arrives in this state, the control circuit 20 executes a call termination process and returns to the standby state. The changeover switches 18 and 19 are restored to the handsets 11 and 12 in the call termination processing. FIG.
FIG. 7 is a diagram illustrating a data communication switching control sequence when the data communication switch 52 is pressed in the digital mode described above.

If the user presses the secret communication switch 53 to make a secret call during a call,
The following secret story switching control is performed. That is, the control circuit 20 determines that the secret communication switch has been pressed in step 4d.
7, it is first determined at step 6a whether or not the currently set wireless communication system is in the analog mode. Then, for example, if the digital mode is being set, it is determined that it is possible to shift to the confidential call as it is, and the process proceeds to step 6h, where the circuit group for the confidential call is operated, and The fact that it became possible is displayed on the LCD 54.

On the other hand, it is assumed that the radio communication system currently being set is the analog mode. Then, the control circuit 20 determines that it is necessary to change the wireless communication system to the digital mode necessary for the confidential communication, and executes the mode change control first. That is, the control circuit 20 first proceeds to step 6b and creates a mode change request message for requesting a change to the digital mode,
This message is sent to the base station. After transmitting the mode change request message, while monitoring the time in step 6c, monitor in step 6d the return of the change request acknowledgment (ACK) response message from the base station.
If an ACK response message is returned from the base station within a predetermined time (for example, 200 msec), the arrival of a handoff command is monitored in step 6e. In this state, assuming that a handoff command has arrived from the base station, the control circuit 20 proceeds to step 6g and performs mode switching processing. That is, the instruction information of the communication channel is inserted in the handoff command, and the control circuit 20 captures and sets a new communication channel according to the instruction information. At this time, the control circuit 20 determines whether the new communication channel is a digital communication channel. Then, as a result of this determination, if it is a digital communication channel, it is determined that the preparation for shifting to the secret communication is completed, and the processing shifts to step 6h where the circuit group for the secret communication is operated. The fact that the call is possible is displayed on the LCD 54.

[0037] Thus, the mobile station apparatus can thereafter make a private conversation using the digital communication channel. FIG. 9 shows the secret communication switch 53 in the analog mode described above.
5 shows a secret communication switching control sequence when is pressed.

As described above, according to this embodiment, when a specific function switch such as the data communication switch 52 or the secret communication switch 53 is operated, the wireless communication system is changed to the communication specified by the specific function switch. The control for changing to the required mode is executed, and after the control is changed to the required mode, the device is switched to the state for executing the above-mentioned specific function communication. Regardless of the mode of the medium wireless communication system, the specific function communication can be performed only by operating the specific function switch without performing any operation for changing the mode. That is, the desired function communication can be started with a minimum operation of only the operation of the specific function switch, whereby the operability can be remarkably improved. This effect is particularly useful in an automobile telephone device in which it is necessary to perform an operation for communication while performing a driving operation, since the influence on the driving operation can be reduced as much as possible.

In this embodiment, when a specific function switch such as the data communication switch 52 or the secret communication switch 53 is operated, the mode currently set is changed to the specific function specified by the specific function switch. By determining whether or not the mode matches the mode required for communication, and only when it is determined that the mode does not match, the control for changing to the mode required for specific function communication is executed, the true wireless communication method Only when it is necessary to change the wireless communication system, the control for changing the setting of the wireless communication system is performed, thereby preventing the occurrence of time loss in the control processing in the mobile station apparatus and the base station apparatus and improving the efficiency. Good control processing becomes possible.

Further, in this embodiment, after the mode change control, it is determined whether or not the wireless communication system has been changed to the required mode, and the specific function communication is executed only when the required mode is set. Like that. Therefore,
For example, if the base station has only one of the analog communication channel and the digital communication channel, or if the base station does not change to the required mode, such as when there is no available channel, The specific function communication can be prevented from being performed in the state of the inappropriate mode, so that the specific function communication can always be performed in the optimum mode necessary for the specific function communication.

The present invention is not limited to the above embodiment. For example, when the mode of the wireless communication system is changed to a required mode and communication of a specific function is enabled, the fact may be displayed or notified. Examples of the display or notification method include displaying a message to that effect on the LCD 54, turning on or blinking a light emitting diode, and generating a sound message or generating a voice message to that effect by a voice synthesizing means. A method of outputting can be used. Further, the above-described display or notification may be performed when the required mode is not changed.

In the above embodiment, the case where facsimile communication and confidential communication are applied as specific function communication has been described as an example. However, communication by other devices such as a personal computer, a word processor, and a digital terminal device such as an ISDN terminal is described. May be applied.

The gist of the present invention also relates to the type of system and mobile station to be applied, the configuration of the mobile station device, the type of specific function communication, the mode change control procedure, the control procedure of the function communication control means, and the control contents. Various modifications can be made without departing from the scope of the present invention.

[0044]

As described above in detail, according to the present invention, in a wireless communication apparatus having a plurality of wireless connection systems and selectively performing wireless connection by using these wireless connection systems, A function communication request input unit for inputting an execution request of a specific function communication specific to the system, and a request for execution of the specific function communication by the function communication request input unit during the wireless connection in the first wireless connection method. A function communication control means for selecting a second wireless connection method for executing the input specific function communication when inputting, and supplementing and communicating with a wireless line for performing communication using the second wireless connection method; The wireless communication system can be changed to a specific function communication in which a wireless connection method is determined by simple operation without performing a lot of troublesome operations, thereby improving operability. Providing wireless communication devices Rukoto can.

[Brief description of the drawings]

FIG. 1 is a circuit block diagram showing a configuration of a wireless communication device according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a control procedure and control contents in a standby state executed by a control circuit of the device shown in FIG. 1;

FIG. 3 is a flowchart showing a control procedure and control contents of line connection control executed by a control circuit of the apparatus shown in FIG. 1;

FIG. 4 is a flowchart showing a control procedure and control contents of a call control executed by a control circuit of the device shown in FIG. 1;

FIG. 5 is a flowchart showing a control procedure and control contents of mode change control executed by a control circuit of the device shown in FIG. 1;

FIG. 6 is a flowchart showing a control procedure and control contents of data communication switching control executed by a control circuit of the device shown in FIG. 1;

FIG. 7 is a flowchart showing a control procedure and a control content of a privacy switch control executed by the control circuit of the apparatus shown in FIG. 1;

FIG. 8 is a view for explaining a data communication switching control sequence of the device shown in FIG. 1;

FIG. 9 is a view for explaining a secret talk switching control sequence of the apparatus shown in FIG. 1;

FIG. 10 is a diagram showing a schematic configuration of a mobile radio communication system employing a dual mode system.

[Explanation of symbols]

NW: wired communication network, CS: control station, BS1, BS2, ...
Base station, MS1, MS2, mobile station, E1, E2, wireless zone, 1 antenna, 2 duplexer (DUP), 3 ...
Receiving circuit (RX), 4 ... frequency synthesizer (SY
N), 5: transmission circuit (TX), 6: digital modulation / demodulation circuit (MOD), 7: equalizer (EQL), 8: error correction code decoding circuit (CH-COD), 9: voice code decoding circuit (SP) -COD), 10, 13 ... voice switch, 11 ...
Receiver, 12: transmitter, 14: analog audio processing circuit (A-AUD), 15: input display unit, 16: power supply circuit,
DESCRIPTION OF SYMBOLS 17 ... battery, 18 and 19 ... switch, 20 ... control circuit, 21 ... mode change control means, 22 ... function communication control means, 30 ... facsimile apparatus, 31 ... connection terminal, 5
1: Mode switch 52: Data communication switch
53: Secret communication switch, 54: Liquid crystal display (LC
D).

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI H04Q 7/26 7/30 (56) References JP-A-63-99662 (JP, A) JP-A-1-282930 (JP, A) JP-A-3-227148 (JP, A) JP-A-3-247065 (JP, A) JP-A-4-369136 (JP, A) Japanese Utility Model 3-90160 (JP, U) Field (Int.Cl. ⁷ , DB name) H04Q ^7/ 20-7/38 H04M 1/725 H04M 11/00 302

Claims (1)

(57) [Claims] 1. A wireless communication device having a plurality of wireless connection systems and selectively performing wireless connection by using these wireless connection systems, receives an execution request of a specific function communication specialized for the wireless connection system. A function communication request input means for executing the specified function communication when the function communication request input means inputs a request for execution of the specified function communication during the wireless connection by the first wireless connection method A wireless communication device for selecting a second wireless connection method to be performed, and a function communication control unit for performing communication by supplementing a wireless line for performing communication using the second wireless connection method.