JPH07203066A - Mobile communication system and communication control method - Google Patents

Abstract

PURPOSE:To perform the communication of data by means of an information processor via a radio communication path set between a mobile station and a base station by outputting a communication command in the prescribed timing set accompanied by the radio communication control performed between both stations. CONSTITUTION:When a communication command is outputted form a personal computer 16, an interface part 18 interprets the contents of the communication command. If the end of initialization is nofified from a base station 12, the control part of the part 18 sets a dial request command to a data line output register. Then the control part outputs the dial request command to the station 12 via PHP slave unit (mobile station) 10. Thus the MODEM function of the data communication part of the station 12 is changed to an on-line mode and can perform the communication of data.

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 and a system for performing data communication using a mobile phone using wireless communication, for example, mobile communication using a personal handy phone (PHP). The present invention relates to a communication control method used.

[0002]

2. Description of the Related Art Generally, when data communication is performed using a personal computer (hereinafter abbreviated as a personal computer) or the like via a public line, an RS-232C connector provided in the personal computer is used for data communication. A device configuration is used in which a modem is connected and a data communication modem and a public line are connected. That is, the personal computer and the data communication modem are physically connected by wire.

When performing data communication, a personal computer is
A data communication modem is controlled by a command represented by a communication command called a so-called AT command.
The communication command is configured on the premise that it is connected to the data communication modem by wire, and can execute a predetermined function.

[0004] By the way, there are car phones and mobile phones called cellular phones as mobile phones using radio waves. Cellular phones provide services nationwide,
You can make (call) and receive (receive) calls over a wide area in major cities. Further, in the cellular phone, it is also possible to transmit data by communication (personal computer communication) using a personal computer (hereinafter, abbreviated as personal computer) or execute FAX communication.

In recent years, instead of the conventional communication using analog signals, services of digital cellular phones that perform communication using digital signals have also been started. The cellular phone has a large-scale communication system built in order to enable communication over a wide range.

Also, as a simple mobile telephone unlike a cellular phone, there is a cordless telephone which is widely used for home use. The cordless telephone communicates between a cordless base unit (base station) and a cordless handset (mobile station) connected to a public line based on a protocol unique to the cordless telephone. The cordless telephone communicates with an analog signal, and the content of communication by the cordless cordless handset is only voice communication.

By the way, as a next-generation mobile telephone using digital signals instead of a cordless telephone using analog signals, a digital cordless telephone, that is, a personal handy phone (hereinafter abbreviated as PHP).
Communication system is planned.

Unlike cellular phones, PHP is not a large-scale communication system, and a small-output PHP slave (mobile station) is used not only at home but also as a public base station for stations, shopping areas, public telephone boxes, etc. By providing it, it can be used outdoors.

Since the PHP performs communication using digital signals, it becomes possible to perform data communication services that cannot be realized by a cordless telephone using analog signals, such as personal computer communication and FAX communication from outside. Further, in realizing this service, in order to improve portability, a configuration is considered in which a public base station side is provided with a modem function corresponding to a data communication modem.

That is, even when the personal computer communication or the FAX communication is performed outdoors, each user does not need to carry a data communication modem and only needs to carry a personal computer or a facsimile device.

[0011]

[Problems to be Solved by the Invention] However, PHP
The mobile communication system using the slave has the following problems. Since the modem function is provided in the public base station, the personal computer and the data communication modem are not connected by wire, but the communication software (communication command) that controls the conventional data communication modem that is connected by wire. ), It becomes impossible to send and receive commands and control communication between the personal computer and the data communication modem.

That is, the communication software needs to monitor the status during communication and set / change the data communication modem depending on the case where the communication is performed via the wireless communication path. Data communication cannot be executed with the same control as when a modem is connected.

The present invention has been made in view of the above circumstances, and physically connects without changing communication software designed to control a wired data communication modem. An object of the present invention is to provide a mobile communication system and a communication control method capable of executing data communication by using a modem function in a base station which is not provided.

[0014]

SUMMARY OF THE INVENTION The present invention is connected to an information processing device for outputting a communication command for operating a modem function for executing data communication via a public line. An interface means for input-holding the communication command output from the device and outputting data according to the communication command at a predetermined timing, and the information processing device and the interface means are connected via the interface means. A mobile station that executes processing according to the output data, and a modem function that is connected to the mobile station via a wireless transmission path and is also connected to the public line, and performs data communication via the public line. The content of the data output at a predetermined timing from the interface means via the mobile station. Flip with and a base station for operating the modem function, characterized in that to enable data communication by the information processing apparatus via a wireless communication path between the base station and the mobile station.

The present invention is also a communication control method for controlling a mobile communication system, wherein the interface means stores the control data when the control data is initial setting information for the modem function, and the mobile station stores the information. After the wireless link between the base station and the base station is established, the initialization information is output to the base station via the mobile station, and the control data from the information processing device performs the modem function. When the modem control command to control and the dial request command for controlling the connection with the public line are stored, respectively, and after the modem function of the base station is initialized based on the initialization information. After outputting the dial request command to the modem function and connecting to the other party via the public line by the dial request command And outputs the modem control commands to the modem function, characterized in that the ready data communication by the information processing apparatus to start the modem function.

The present invention is also a communication control method for controlling a mobile communication system, wherein the interface means stores the control information when the control data is initial setting information for the modem function, and the information is stored. When the control data from the processing device is a modem control command for controlling the modem function and a dial request command for controlling the connection with the public line, save the respective data,
After the dial request command is output to the modem function, a wireless link between the mobile station and the base station is established, and after the dial request command is connected to the other party via the public line. , Outputting the initial setting information, outputting the modem control command to the modem function and starting the modem function after the modem function of the base station is initialized based on the initial setting information. And enabling data communication by the information processing device.

[0017]

According to this structure, the information processing apparatus inputs and holds the communication command output for data communication using the data communication modem connected by wire.
By outputting this communication command at a predetermined timing according to the wireless communication control between the mobile station and the base station, the modem function provided in the base station is controlled and the data with the partner via the public line is controlled. It can be set to a state in which communication is possible.

Also, initial setting information for controlling the modem function, a modem control command included in the communication command,
Depending on the relationship between the dial request command, the procedure for establishing the wireless link between the mobile station and the base station, and the predetermined procedure to be taken to enable data communication for the modem function. By outputting the respective data at a predetermined timing, the data communication by the information processing device is enabled.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a schematic configuration of a mobile communication system in this embodiment. As shown in FIG. 1, in the mobile communication system of this embodiment, a wireless communication function is executed between the PHP slave 10 and a public base station 12 installed outdoors, for example. The public base station 12 is installed in a public telephone box or the like.

The public base station 12 is connected to the public line 14, and when making a call from the PHP handset 10, it is possible to talk with the other party via the public base station 12 and the public line 14. Further, data communication by a personal computer (hereinafter abbreviated as personal computer) 16 and fax communication by a facsimile device (hereinafter abbreviated as FAX) 17 are possible via the PHP slave device 10. The data communication may be performed by another information processing device such as a word processor device. In this embodiment, the public line 14 is connected to I
It is a digital line such as SDN (Integrated Services Digital Network).

The personal computer 16 and the PHP slave unit 10 are connected via the interface device 18 by a connection cable 19a. The FAX 17 is provided internally with an interface function (not shown) having the same function as the interface device 18, and is connected to the PHP slave device 10 via the connection cable 19b via the same function.

FIG. 2 is a block diagram showing the construction of the PHP slave unit 10. As shown in FIG. 2, the PHP slave device 10 includes a microcomputer 20, a wireless unit 21, a codec 22, and an ADPC.
M section 23, PCM section 24, button input section 25, speaker 26, microphone 27, connector section 28, and antenna 29
Is provided.

The microcomputer 20 controls each part of the PHP slave 10 according to a program stored in a memory (not shown). The microcomputer 20 receives a command input from the connector section 28 via a control line or a button input section 25 by pressing a dial button.
The operation control of the telephone function according to the data input from the control unit 22 and the control of the codec 22 and the ADPCM unit 23 (switching voice communication and data communication by turning on / off) are performed. The operation of the dial button can be emulated by externally giving a predetermined remote command to the microcomputer 20 via the connector section 28 and the control line.

The radio unit 21 is connected to the antenna 29 and the codec 22, and transmits / receives data to / from the radio unit 30 provided in the public base station 12 via the antenna 29 according to a predetermined protocol. The wireless unit 21 inputs / outputs data to / from the public base station 12 from / to the codec 22.

The codec 22 includes a radio unit 21 and an ADP.
When a voice call is made, which is connected to the CM unit 23 and the connector unit 28, under the control of the microcomputer 20, the data to be transmitted to the public base station 12 output from the ADPCM unit 24 is transmitted as a radio signal. Public base station 12 converted to (analog signal) and received via wireless unit 21
The radio signal from the device is converted into a digital signal. When performing data communication / FAX communication, data is input / output to / from the personal computer 16 via the connector unit 28 and the data line (the ADPCM unit 23 is not used).

The ADPCM unit 23 is provided between the PCM unit 24 and the codec 22 and has an ADPCM (Adaptive
Differential Pulse Code Modulation: Highly efficient compression is performed by adaptive differential pulse code modulation.

The PCM unit 24 is connected to the ADPCM unit 23, the speaker 26 and the microphone 27, and is connected to the PCM (Pulse Co
de Modulation: Performs pulse code modulation. When performing a voice call, the PCM unit 24 converts a digital voice signal, which is transmitted from the public base station 12 and is to be output from the speaker 26 obtained via the wireless unit 21, the codec 22, and the ADPCM unit 23, into an analog voice signal. The analog voice signal input from the microphone 27 is converted into a digital voice signal and output to the ADPCM unit 23.

The button input section 25 controls input of a dial button (not shown) provided for operating the PHP slave 10. The button input unit 25 outputs data corresponding to the pressed button among the dial buttons to the microcomputer 20. The dial buttons, which are used when dialing from the PHP slave device 10, include various function buttons in addition to the numeric buttons 0 to 9, the “*” and “#” buttons.

The speaker 26 is connected to the PCM section 24 and outputs a voice based on voice data from the other party. The microphone 27 is connected to the PCM unit 24, and inputs voice to be sent to the other party of the call.

The connector section 28 is connected to the personal computer 16 or FA via the connection cables 19a and 19b to the PHP slave unit 10.
This is an interface for connecting the X17. The data line connected to the connector unit 28 is a codec 22.
The control line is connected to the microcomputer 20.

The antenna 29 is for transmitting and receiving signals to and from the base station 12. FIG. 3 is a block diagram showing the configuration of the public base station 12. As shown in FIG. 3, the public base station 12 includes a radio unit 30 and an error correction unit 3.
1, data communication unit 32, PCM unit 33, ADPCM unit 3
4 and the antenna 35. Each functional unit forming the public base station 12 is controlled by a microcomputer (not shown).

The radio unit 30 is connected to the antenna 35, and the PHP slave unit (base station) 10 is connected via the antenna 35.
Data is transmitted and received between and by a predetermined protocol. The wireless unit 30 transmits the data transmitted / received to / from the PHP slave device 10 from the ADPCM unit 34 (during a voice call).
Alternatively, input / output is performed with the error correction unit 31 (during data communication).

The error correction unit 31 is, for example, an ASIC (Ap
replication specific IC) and performs link control of wireless communication between the PHP slave 10 and the public base station 12 and correction of data transfer errors.

The data communication unit 32 controls data communication when performing data communication or FAX communication via the PHP slave 10. The data communication unit 32 is provided with a modem (modulation / demodulation) function and a modem control function for controlling the function. The base station 12 is basically configured to perform voice communication, and is provided with an adapter to which a predetermined functional unit can be added to realize functions other than voice communication. Data communication control unit 3
2 is attached to a data / FAX communication adapter provided in the base station 12 for use.

The PCM section 33 is connected to the data communication section 32, and is connected to the other party (for example, a host device in the case of data communication) via the public line 14 during data communication. The PCM unit 33 performs PCM encoding / decoding processing for inputting / outputting data to / from the public line 14, which is a digital communication network such as ISDN.
The digital signal from 4 is converted into an analog signal, and the analog signal to be sent to the communication partner is converted into a digital signal and sent to the public line 14.

The ADPCM unit 34 is provided between the radio unit 30 and the public line 14 and performs high efficiency compression by ADPCM (adaptive differential pulse code modulation). A
When the voice communication is performed, the DPCM unit 34 transmits 64 to the PHP slave device 10 from the public line 14 (ISDN).
The digital voice data of kbps is compressed and converted into a digital voice signal of 32 kbps, and the digital voice data to be sent to the public line 14 is converted in the reverse manner. The ADPCM unit 43 is switched on / off under the control of a microcomputer (not shown). By turning on / off the ADPCM unit 43, a voice signal path (voice call) and a data signal path (data communication) are switched.

The antenna 35 is for transmitting and receiving signals to and from the PHP slave unit 10. In the base station 12, during data communication, the wireless unit 30, the error correction unit 31,
The path of the data communication unit 32 and the PCM unit 33 is used, and during voice communication, the wireless unit 30, the error correction unit 31, and the ADPC.
The route of the M section 34 is used. The switching of the route is performed by a microcomputer (not shown) for controlling the entire base station 12.

FIG. 4 is a block diagram showing the structure of the interface section 18. As shown in FIG. 4, the interface unit 18 includes an error correction unit 40, a control unit 41, and a UAR.
T (Universal Asynchronous Recever Tranceiver) 4
It is composed of two.

The interface section 18 can be constructed as an IC card type which can be connected to a card interface (IC card slot) provided in the personal computer 16, for example. The card interface is, for example, JEIDA
(Japan Electronic Industry Development Associatio
n) / PCMCIA (Personal Computer Memory Card)
International Association) is used. Therefore, the interface unit 18 includes the personal computer 1
An interface (I
/ F) 43, interfaces 44a and 44b to which a connection cable 19a for connecting to the PHP slave unit 10 is connected
(For control lines and data lines) are provided.

The error correction section 40 is composed of, for example, an ASIC, and performs link control of wireless communication between the PHP slave 10 and the public base station 12 and correction of data transfer error. The error correction unit 40 is connected to the PHP slave device 10 by a control line and a data line of the connection cable 19a.

The error correction section 40 comprises a CPU 40a, a controller (CONT) 40b, an SIO 40c, and an error correction circuit 40d. CPU 40a
Controls the error correction unit 40 under the control of the control unit 41. The controller 40b processes control information for the PHP slave device 10 given from the personal computer 16 or a command for the base station 12. SIO40c
Is connected to the control line of the PHP slave 10, and the processing result by the controller 40b, for example, the PHP slave 1
A remote command for executing the same operation as when the 0 dial button is pressed (10-key emulation) is transmitted to the PHP slave device 10. The error correction circuit 40d is for transmitting and receiving a processing result by the controller 40b, for example, a command and data for data communication to and from the base station 12 via the PHP slave device 10.

The control unit 41 controls the UART 42 and the error correction unit 40 that form the interface unit 18, and a predetermined value is determined according to the data input via the UART 42 or the data input from the error correction unit 40. Perform the operation of.

The control unit 41 includes a CPU 41a and a ROM 41.
b, and a RAM 41c. The CPU 41a is the RO
The entire interface unit 18 is controlled based on the program stored in M41b. The RAM 41c is for storing various data and the like, and stores, for example, an initial setting command to be set in the modem function for data communication.

The UART 42 is connected to the parallel bus of the personal computer 16 and inputs data from the personal computer 16. The UART 42 is for realizing communication through a telephone line, and has a function of transmitting / receiving data from the CPU (personal computer 16), a function of controlling a modem, and the like. UART4
Reference numeral 2 simulates the function of the data communication modem, and receives the same control from the personal computer 16 as when the wired data communication modem is connected. That is, the personal computer 16 uses a communication command (in the conventional communication system) for controlling the data communication modem.

Next, the operation of this embodiment will be described.
First, the operation of the interface unit 18 will be described.
The communication command input from the personal computer 16 from the interface 43 is once input by the UART 42 (various registers are provided inside), so that the compatibility with the communication software in the conventional communication system is maintained.

The CPU 41a of the control unit 41 has a ROM 41
The program is loaded from b, the content of the communication command input to the UART 42 is judged, and the error correction unit 40
The contents of the communication command are transferred to the CPU 40a.

The CPU 40a discriminates the content of the transferred command, and if it is the control information for the PHP slave unit 10, instructs the controller 40b and the SIO 40c to output the information to the control line, and the personal computer 16
Process commands from.

If the content of the command is a command for the base station 12, the controller 40b and the error correction circuit 40 output the command to the data line.
The command from the personal computer 16 is processed by issuing an instruction to d.

For example, when the command sent from the personal computer 16 is the initial setting information for the modem function provided in the data communication section 32 of the base station 12, the following operation is performed.

The initial setting command output from the personal computer 16 passes through the UART 42 and the CPU 41 of the control unit 41.
Whether or not it is an initial command is determined by a. If it is determined that the command is the initial setting command, the command is temporarily stored in the RAM 41c.

When the modem function in the data communication unit 32 of the base station 12 is activated and a command indicating that initialization is possible is input from the interface 44B via the data line, the initialization set in the RAM 41c is performed. The information is output via the data line.

Next, command processing in the first embodiment will be described with reference to the flowchart shown in FIG. The control unit 41 of the interface unit 18 uses the UART
It is detected whether the data is received by 42 via the interface 43 (step A1).

When data is input from the personal computer 16, the control unit 41 of the interface unit 18 controls the base station 12
It is determined whether or not it is the initial setting information for the modem function provided in (step A2). If the result of this determination is that it is initial setting information, the CPU 41a of the control unit 41 stores the initial setting information in the RAM 41c (step A).
3). Further, the CPU 41a uses the SI of the error correction unit 40.
Through the O40c and the control line of the interface 44a, the PHP slave device 10 is requested to establish a wireless link with the base station 12 (step A4).

When the wireless link between the PHP handset 10 and the base station 12 is established, the interface section 18 causes the RAM 4
The error correction unit 40 stores the initial setting information stored in 1c.
It is set in the data line output register in the error correction circuit 40d. As a result, the CP of the error correction unit 40
The U 40a sends the contents of the output register for the data line to the PHP through the data line via the interface 44b.
The data is output to the data communication unit 32 of the base station 12 via the slave 10 (step A5).

In the data communication section 32 of the base station 12, the modem function is initialized based on the initialization information from the interface section 18. When the initial setting is completed, the data communication unit 32 notifies the interface unit 18 of the completion of the initial setting.

Next, when a communication command is output from the personal computer 16 (steps A1, A2, A6), the control unit 41
CPU 41a interprets the content of the communication command. An AT command (for example, ATDT0425 ...) Is generally used as a communication command for controlling the modem function. The AT command for executing the automatic call is a modem control command for the modem function (ATDT part) and a dial request command for realizing the telephone function for connecting the line with the communication destination (destination telephone number). Dialing information indicating 0425 ...) is included. CPU 41a
Separates the communication command into a modem control command and a dial request command and stores them in the RAM 41c (step A8).

Here, the base station 12 (data communication unit 32)
If there is a notification from the initial setting completion (step A
9), the CPU 41a of the control unit 41 sends the dial request command stored in the RAM 41c to the error correction unit 40.
It is set in the data line output register of the error correction circuit 40d (step A10).

The CPU 40a of the error correction section 40 outputs the dial request command set in the data line output register to the data communication section 32 of the base station 12 via the PHP slave unit 10 (step A11).

The data communication unit 32 of the base station 12 calls the communication partner in response to the dial request command from the interface unit 18 to connect the line.

The CPU 41a of the interface section 18
When a call / response from the PHP slave device 10 is input, RA
The modem control command held in M41c is set in the data line output register of the error correction circuit 40d. As a result, the CPU 40a of the error correction unit 40
Is the modem control command of the output register for the data line, from the data line via the interface 44b,
The data communication unit 32 of the base station 12 via the PHP slave device 10.
(Step A14).

As a result, the modem function of the data communication section 32 shifts to the online mode, and the data communication becomes possible. If it is determined in step A6 that the command is not a communication command, processing corresponding to the command is executed (step A15).

Next, command processing in the second embodiment will be described with reference to the flow chart shown in FIG. In the second embodiment, description will be made assuming that each unit is controlled at the timing shown in FIG. 7.

The personal computer 16 sends the initial setting information for the modem function based on the communication software for controlling the data communication modem connected by wire (see FIG. 7).
(A)), if there is a notification indicating that it has been received (Fig. 7).
(B)), and sends a communication command (FIG. 7 (c)).

The control unit 41 of the interface unit 18 uses the U
When the ART 42 detects whether the data is received through the interface 43 and the data is input from the personal computer 16, it is determined whether the data is the initial setting information for the modem function provided in the base station 12 (step B).
1).

If the result of this determination is that it is initial setting information, the CPU 41a of the control unit 41 sets the initial setting information to RA.
The data is saved in M41c (step B2, FIG. 7D). The UART 42 notifies the initial setting information from the personal computer 16 that it has been received (step B3).

At this point, the interface section 18 waits for the input of a communication command from the personal computer 16 (step B4). When the communication command is received by the UART 42, the CPU 41a of the control unit 41 interprets the content of the communication command. An AT command is generally used as a communication command for controlling the modem function. The AT command for executing the automatic call is a modem control command for the modem function, and a dial request command for realizing the telephone function for connecting the line with the other party of communication (dial information indicating the other party's telephone number). And are included. The CPU 41a separates the communication command into a modem control command and a dial request command, and stores them in the RAM 41c (steps B5 and B6).

Further, the CPU 41a sends the dial request command stored in the RAM 41c to the error correction unit 40.
Is set in the data line output register of the error correction circuit 40d (step B7), and the PHP slave unit 10
To the control command output register of the SIO 40c.

The CPU 40a of the error correction unit 40 outputs the dial request command set in the data line output register and the control command set in the control command output register to the PHP slave unit 10 (step B).
8, FIG. 7 (e)). The PHP slave 10 establishes a wireless link with the base station 12 in response to a control command from the interface unit 18 (FIG. 7 (f)). Then, the data communication unit 32 of the base station 12 sets the modem function to the off-hook state in response to the dial request command, calls the communication partner in response to the dial request command from the interface unit 18, and Are connected (FIG. 7 (g)).

The CPU 41a of the interface section 18 is
When a call / response is input after the wireless link has been established by the PHP slave device 10 (step B9, FIG. 7 (h)),
A communication start request to the data communication unit 32 is issued to the PHP slave unit 1
0 (step B10, FIG. 7 (i)).

Further, the PHP slave unit 10 outputs a modem activation request (SACCH) to the base station 12 in response to the communication start request from the interface unit 18 (FIG. 7).
(J)). The data communication unit 32 of the base station 12 activates the modem function in response to the modem activation request, and then outputs the activation completion notification (SACCH) to the PHP slave 10 (FIG. 7).
(K)). The PHP slave device 10 outputs a preparation completion notification to the interface unit 18 in response to the activation completion notification (FIG. 7 (l)).

When the controller 41 of the interface unit 18 receives the preparation completion notice (step B11), the RAM 41
The initial setting information stored in c is set in the data line output register in the error correction circuit 40d of the error correction unit 40. As a result, the CPU of the error correction unit 40
40a outputs the content of the data line output register to the data communication unit 32 of the base station 12 via the PHP slave device 10 via the data line via the interface 44b (step B12, FIG. 7 (m)).

In the data communication section 32 of the base station 12, the modem function is initialized based on the initialization information from the interface section 18. When the initial setting is completed, the data communication unit 32 notifies the interface unit 18 of the completion of the initial setting (FIG. 7 (n)).

The CPU 41a of the interface section 18 is
When the initialization completion notification is input from the base station 12 via the PHP slave device 10 (step B13), the RAM 41c
The modem control command held in step S14 is set in the data line output register of the error correction circuit 40d (step B14). As a result, the CP of the error correction unit 40
The U 40a outputs the modem control command of the output register for the data line from the data line via the interface 44b to the data communication unit 32 of the base station 12 via the PHP slave device 10 (step B15, FIG. 7 (o)). ).

As a result, the modem function of the data communication unit 32 shifts to the online mode, notifies the personal computer 16 of the connection (FIG. 7 (p)), and becomes a state where data communication is possible (FIG. 7 (q). )).

In this way, without changing the communication software designed to control the wired data communication modem operating on the personal computer 16,
The modem function provided in the data communication unit 32 of the base station 12 can be controlled to enable data communication by the personal computer 16 via the PHP slave device 10 (mobile station) and the base station 12.

That is, the interface section 18 stores the initial setting information and the communication command output from the personal computer 16 for controlling the modem function. The communication commands are separately stored as a modem control command for controlling the modem function and a dial request command for controlling the line connection.

Therefore, the information stored according to the timing of control for establishing a wireless link between the PHP slave unit 10 and the base station 12, connection control with the line 14, and control for the modem function of the data communication unit 32. By outputting a command or a command, the information processing device does not perform any special processing (whether the modem function is connected by wire or connected via a wireless communication path). No, it becomes possible to perform data communication with the other party via the PHP slave device 10 (mobile station), the base station 12, and the public line 14.

[0078]

As described above, according to the present invention, in a base station that is not physically connected, without changing communication software designed to control a wired data communication modem. The data communication can be executed by using the modem function.

[Brief description of drawings]

FIG. 1 is a diagram showing a schematic configuration of a mobile communication system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a PHP slave device 10 according to the present embodiment.

FIG. 3 is a block diagram showing the configuration of a public base station 12 in this embodiment.

FIG. 4 is a block diagram showing a configuration of an interface section 18 in the present embodiment.

FIG. 5 is a flowchart for explaining a command processing procedure in the first embodiment.

FIG. 6 is a flowchart for explaining a command processing procedure in the second embodiment.

FIG. 7 is a diagram for explaining a control timing of each unit in the second embodiment.

[Explanation of symbols]

10 ... PHP slave unit (mobile station), 12 ... Base station, 14 ... Public line, 16 ... Personal computer (information processing device), 18 ... Interface unit, 19a, 19b ... Connection cable, 20 ... Microcomputer, 21, 30 ... Radio section, 22
… Codec, 23… ADPCM part, 24, 34… P
CM section, 25 ... Button input section, 26 ... Speaker, 27 ...
Microphone, 28 ... Connector section, 31, 40 ... Error correction section, 33 ... PCM section, 40 ... Error correction section, 41 ... Control section, 41a ... CPU, 41b ... ROM, 41c ... RA
M, 42 ... UART, 43, 44a, 44b ... Interface.

Claims (5)

[Claims] 1. A communication command output from the information processing device, the communication command being connected to an information processing device for outputting a communication command for operating a modem function for executing data communication via a public line. Interface means for input-holding and outputting data according to the communication command at a predetermined timing; and processing according to the data output from the interface means, which is connected to the information processing device via the interface means. The mobile station to be executed is connected to the mobile station via a wireless transmission line and is also connected to the public line, and has a modem function for performing data communication via the public line. Operates the modem function according to the content of the data output from the mobile station via the mobile station at a predetermined timing. Mobile communication system, characterized in that to enable data communication by the information processing apparatus and the base station, comprises a, over a wireless communication path between the base station and the mobile station to. 2. The interface means interprets a communication command output from the information processing device, holds data for each content included in the communication command obtained by the interpretation, and holds each data at a predetermined timing. The mobile communication system according to claim 1, wherein the mobile communication system outputs the data to a mobile station or the base station. 3. The mobile communication according to claim 2, wherein the interface means outputs the held contents at a timing according to a notification indicating a processing status in the base station via the mobile station. system. 4. An information processing apparatus for outputting control data for operating a modem function for executing data communication via a public line, the information processing apparatus outputting the control data. Interface means for inputting and holding control data; a mobile station connected to the information processing apparatus via the interface means for inputting the control data output from the interface means; and a mobile station and a radio transmission path. And a base station connected to the public line and having a modem function for performing data communication via the public line. If the control data is initial setting information for a modem function, the interface means stores the information, After the wireless link between the mobile station and the base station is established, the initialization information is output to the base station via the mobile station, and the control data from the information processing device is the modem. When a modem control command for controlling a function and a dial request command for controlling a connection with the public line are stored, the modem function of the base station is initialized based on the initialization information. After that, the dial request command is output to the modem function, and after the dial request command is connected to the other party via the public line, the modem control command is output to the modem function, A communication control method comprising activating the modem function to enable data communication by the information processing apparatus. 5. An information processing apparatus for outputting control data for operating a modem function for executing data communication via a public line, the information processing apparatus outputting the control data. Interface means for inputting and holding control data; a mobile station connected to the information processing apparatus via the interface means for inputting the control data output from the interface means; and a mobile station and a radio transmission path. And a base station connected to the public line and having a modem function for performing data communication via the public line. If the control data is initial setting information for a modem function, the interface means stores the information, When the control data from the information processing device is a modem control command for controlling the modem function and a dial request command for controlling the connection with the public line, each is saved, and the dial request command is stored as Output to the modem function, the wireless link between the mobile station and the base station is established, and after the connection to the other party via the public line by the dial request command, the initial setting information Output, and after the modem function of the base station is initialized based on the initial setting information, outputs the modem control command to the modem function, activates the modem function, and causes the information processing device to operate. A communication control method characterized by making data communication possible.