JPH10112738A - Data terminal equipment capable of communicating radio data - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform IP packet data communication by using a control channel between a portable telephone system and a radio base station. SOLUTION: A radio modem function block 1 which automatically performs the transmission and receiving of IP(internet protocol) packet data by means of a TCP/IP protocol by utilizing a control channel is installed in a data terminal device PC. In the block 1, a signal controlling part 10 performs the transmitting and receiving control of data between a portable telephone system 3 and the part 10 itself. A data terminal communication controlling part 4 processes data from data communication software 2, recognizes a modem controlling command and outputs it. A modem controlling command processing part 5 inputs a modem controlling command and activates a packet communication interface part 8. The part 8 outputs a trigger signal which activates and ends IP packet data communication by using the control channel to the part 10. A data communication protocol processing part 9 performs a data link procedure for the IP packet data communication.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data terminal device such as a personal computer, and more particularly, to a data terminal capable of providing a wireless data communication service using a control channel between a wireless telephone device and a wireless base station. It concerns the device.

[0002]

2. Description of the Related Art In a conventional portable radio telephone, voice communication is performed. A communication channel and a control channel are provided between a base station and the portable radio telephone by a radio line. In this case, voice communication is performed, and the control channel is used for transmitting and receiving a control signal for setting a communication channel between the base station and the portable wireless telephone.

However, as portable radio telephones have become widespread, there has been a need for data communication through the portable radio telephones. For example, as disclosed in Japanese Patent Application Laid-Open No. 63-105533, Portable wireless telephones capable of performing data communication using channels have been developed.
Further, an IP (Internet Protocol) is connected between the portable wireless telephone and a data terminal such as a personal computer.
(ocol: Internet Protocol) A system capable of transmitting and receiving data such as packet data and voice is required, and a modem card device mounted on a data terminal and used as a device therefor has been developed.

[0004]

However, the conventional modem card device is mounted on a data terminal when the communication channel is used as a data channel by using the communication channel with the base station. A device that functions as a modem for the communication channel on the data terminal side.The amount of data transmitted and received increases with the spread of data terminals and portable wireless telephones. The amount of data is limited,
It has become impossible to meet the demand for transmitting and receiving more data. Further, the conventional modem card device uses a PCM of the data terminal for connection with the data terminal.
Since CIA-compliant interface slots are used,
A card that uses the interface slot at the same time for another purpose cannot be loaded.

[0005] An object of the present invention is to firstly enable a data terminal apparatus to perform IP packet data communication using a control channel between a portable telephone apparatus and a radio base station, and to transmit more data. An object of the present invention is to provide a modem function capable of transmitting and receiving. Second, it is to provide an environment in which PCMCIA-compliant interface slots of a data terminal device can be used more efficiently.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a data terminal device connected to a portable telephone device for transmitting and receiving data using a communication channel of a wireless interface of the portable telephone device. Recognizes the modem control command set in the mobile communication device, and uses the control channel of the wireless interface of the portable telephone device in accordance with the control content.
A wireless data communication modem unit for transmitting and receiving IP packet data in an on-control protocol (transmission control protocol) / IP protocol, and capable of transmitting and receiving data communication using a control channel in addition to a communication channel. is there.

[0007] The wireless data communication modem unit uses TCP / IP.
A signal control means for controlling transmission / reception of data to / from the mobile phone so that transmission / reception of IP packet data according to the protocol can be automatically performed using the control channel; A packet communication interface unit for outputting a trigger signal for performing IP packet data communication by accessing a control channel between the packet communication interface unit and the communication software of the data terminal device for performing IP packet data communication; Modem control command processing means for activating the packet communication interface means when recognizing a modem control command, and IP data communication protocol processing means for performing a data link procedure for IP packet data communication between the portable telephone device. Having.

[0008]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the data terminal device of the present invention. FIG. 2 is a diagram showing an example of an operation sequence at the start of IP packet data communication performed between the data terminal device and the mobile phone device, and FIG. 3 is an example of an operation sequence at the end of IP packet data communication. FIG. FIG. 4 is a diagram showing an operation sequence of non-telephone call control performed between the data terminal device and the portable telephone device of FIG. 1, and FIG. 5 is a diagram showing operations of facsimile and non-telephone communication start / end. It is a figure showing an example of a sequence.

A data terminal device (for example, a personal computer) PC shown in FIG. 1 includes a wireless function block (wireless data communication modem unit) 1 and data communication software 2 and a portable telephone device 3 having a packet communication function and a wireless or wired system. Connected by

The wireless modem function block 1 comprises a data terminal communication control section 4, a modem control command processing section 5, a facsimile communication procedure processing section 6, a non-telephone call control section 7, a packet communication interface section 8, and a data communication protocol processing section 9.
And a signal control unit 10. The wireless modem function block 1 includes a microprocessor, and the above-described units are realized by software incorporated in the microprocessor.

The data terminal communication control unit 4 processes data from the data communication software 2 and recognizes and outputs a modem control command set in the data communication software 2 in advance. Packet communication interface unit 8
Is a mobile phone device 3 and a base station (not shown)
An IP packet communication activation trigger signal for activating a packet communication function of the mobile phone device 3 and an IP packet for ending the packet communication function for performing communication of IP packet data using a control channel between Outputs the communication end trigger signal.

The facsimile communication procedure processing unit 6 performs a facsimile communication with the portable telephone device 3 using a communication channel between the portable telephone device 3 and the base station.
And outputs a non-telephone control trigger signal for activating the non-telephone communication function. The non-telephone call control unit 7 performs data communication between the non-telephone call control unit and the base station using a communication channel,
It outputs a non-telephone control trigger signal for activating the non-telephone communication function of the mobile phone device 3.

The modem control command control unit 5 receives a modem control command from the data terminal communication control unit 4 and
When it is recognized that the command is a modem control command for performing communication of P packet data, the packet communication interface unit 8 is activated. Is activated, and when it is recognized as a modem control command for performing non-telephone data communication,
Activate the non-telephone call controller 7.

The data communication protocol processing section 9 performs a data link procedure for IP packet data communication with the portable telephone device 3. The signal control unit 10 controls transmission and reception of data between the wireless modem function block 1 and the mobile phone device 3. The signal line between the wireless modem functional block 1 and the mobile phone device 3 is a signal line that can transmit a control signal, a call signal, and a data signal.

Next, the operation will be described. In FIG. 1, it is assumed that data communication software 2 includes an application of TCP / IP communication software, and a modem control for controlling wireless modem function block 1 in advance in a modem initialization file included in the application program. It is assumed that the command is registered.

In the data communication software 2, the IP
When the application program is started to perform packet data communication, a modem control command for starting communication of IP packet data is transmitted from the data communication software 2 to the wireless modem function block 1.
The data of the modem control command is received by the data terminal communication control unit 4 of the wireless modem function block 1. When detecting the modem control command, the data terminal communication control unit 4 converts the modem control command into a modem control command processing unit 5.
Output to The modem control command processing unit 5 recognizes the input modem control command as a modem control command for performing communication of IP packet data, and activates the packet communication interface unit 8 to operate the IP packet communication function. . The activated packet communication interface unit 8 performs a packet communication function of the mobile phone device 3 for performing IP packet data communication with the mobile phone device 3 using the control channel between the mobile phone device 3 and the base station. Via the signal control unit 10 to output an IP packet data communication activation trigger signal for activating the IP packet data communication. That is, the control data from the data communication software for performing the communication of the IP packet data passes through the wireless modem function block 1 along the route indicated by the arrow 11 in FIG. It is transmitted to the mobile phone 3 as a packet data communication activation trigger signal.

When the portable telephone device 3 in the standby state receives an IP packet data communication activation trigger signal for activating the packet communication function as shown in FIG. 2, the portable telephone device 3 and the base station communicate with each other. The procedure process for performing packet communication using the control channel between is started. When the standby channel close signal and the packet channel open signal are transmitted to the base station, and the processing of the packet communication registration procedure is completed, the mobile phone device 2 wirelessly notifies that the control channel is ready to be used for the IP packet data communication. In order to notify the modem function block 1, a packet link connection confirmation signal is transmitted to the wireless modem function block 1. Upon receiving the packet link connection confirmation signal, the signal control unit 10 of the wireless modem function block 1 recognizes the packet link connection confirmation signal and activates the data signal protocol processing unit 9. The data communication protocol processing unit 9 sends an asynchronous balanced mode setting signal (S) to the mobile phone 3 as a data link procedure for IP packet data communication.
ABM), and receives an acknowledgment signal (UA) from the mobile phone device 3. This data link procedure processing has the purpose of performing retransmission control in units of IP packets when data loss or an error occurs between the wireless modem function block 1 and the portable telephone device 3.

When the data link processing by the data communication protocol processing section 9 is completed, the data communication protocol processing section 9 activates the data terminal communication control section 4 and performs data communication between the data communication software 2 and the data terminal control section 4. State. In this state, the IP packet data flows from the data communication software 2 to the mobile phone 3 via the wireless modem function block 1 as shown by an arrow 12 in FIG. Upon receiving the IP packet data, the mobile phone device 3 performs IP packet data communication with the base station using a control channel with the base station. “During packet communication” in FIG. 3 indicates this state.

Next, the operation at the end of the IP packet data communication will be described. In FIG. 1, when the data communication software 2 detects the end of the TCP / IP communication software application in the data communication software 2 or the communication timeout of the IP packet data,
A modem control command indicating the end of the packet data communication is transmitted from the data communication software 2 to the wireless modem function block 1. Upon receiving the modem control command transmitted from the data communication software 2, the data terminal communication control unit 4 of the wireless modem function block 1 outputs the modem control command to the modem control command processing unit 5 upon detecting the modem control command. Modem control command processing unit 5
Recognizes that the input modem control command is a modem control command for terminating the communication of the IP packet data, and activates the packet communication interface unit 8 to terminate the communication of the IP packet data.
The activated packet communication interface unit 8 transmits the IP packet data to the mobile phone 3 to terminate the communication of the IP packet data performed using the control channel between the mobile phone 3 and the base station. The communication end trigger signal is output via the signal control unit 10.

In a state where the packet communication is being performed, the portable telephone device 3 which has received the IP packet data communication end trigger signal for terminating the IP packet data communication uses the control channel as shown in FIG. The packet communication release procedure for terminating the packet communication between the device 3 and the base station is performed. When the packet communication release procedure is completed, the mobile phone device 3 sends a packet link disconnection confirmation signal to the wireless modem function block 1 to notify the wireless modem function block 1 that the control channel is ready to be released from the IP packet data communication. Send to block 1. The signal control unit 10 of the wireless modem functional block 1 that has received the packet link disconnection confirmation signal recognizes the packet link disconnection confirmation signal and activates the data communication protocol processing unit 9. The activated data communication protocol processing unit 9
A disconnection request signal (DISC) shown in FIG. 3 is transmitted to the mobile phone 3 as a data link release procedure for terminating the IP packet data communication, and an acknowledgment signal (UA) is received from the mobile phone 3. . When the data link release procedure is completed, the mobile phone device 3 enters a standby state.

On the other hand, the data communication protocol processor 9 of the wireless modem function block 1 notifies the data terminal communication controller 4 of the completion of the data link release. The data terminal communication control unit 4 notifies the modem control command processing unit 5 of the end of the communication of the IP packet data, and returns the connection between the control channel of the portable telephone device 3 and the wireless modem function block 1 to the original state for processing. Complete. The mobile phone device 2 that has returned to the standby state transmits a position registration request signal to the base station, and the base station transmits a position registration acceptance signal.

In the above description, activation and termination of the IP packet data communication have been described. However, the conventional facsimile communication and non-telephone call control are also described in FIG.
This is performed as shown in FIG.

As described above, the data terminal device PC has the IP
Means for knowing the start / end of packet communication by recognizing the modem control command; means for notifying the cellular phone device 3 of activation and end of the IP packet data communication function;
Means for performing protocol control for IP bucket data communication, in addition to facsimile communication and non-telephone call control, IP packet data communication using a control channel between a mobile telephone device and a radio base station. It is possible to do.

[0025]

As described above, according to the data terminal device of the present invention, IP packet data communication using a control channel between a portable telephone device and a radio base station can be performed. Also, by mounting the wireless modem function block on the data terminal device, the PCMC is added to the data terminal device.
When an IA-compliant interface slot is mounted, the slot will not be blocked as a wireless modem card.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of a data terminal device of the present invention.

FIG. 2 is a diagram showing an example of an operation sequence at the start of IP packet data communication performed between the data terminal device and the mobile phone device in the embodiment shown in FIG.

FIG. 3 is a diagram showing an example of an operation sequence at the time of termination of IP packet data communication.

FIG. 4 is a diagram showing an example of an operation sequence of non-telephone call control.

FIG. 5 is a diagram showing an example of an operation sequence for starting and ending facsimile and non-telephone communication.

[Explanation of symbols]

PC data terminal device 1 wireless modem function block in data terminal device (wireless data communication modem unit) 2 data communication software in data terminal device 3 mobile phone device 4 data terminal communication control unit 5 modem control command processing unit 6 facsimile communication procedure Processing unit 7 Non-telephone call control unit 8 Packet communication interface unit 9 Data communication protocol processing unit 10 Signal control unit

Continued on the front page (51) Int.Cl. ⁶ Identification code FI H04B 7/26 109M H04Q 7/04 D

Claims (2)

[Claims] 1. A data terminal device connected to a mobile phone device for transmitting and receiving data using a communication channel of a wireless interface of the mobile phone device, wherein a modem control command set in communication software of the data terminal device is provided. TCP / IP using the control channel of the wireless interface according to the control contents
A data terminal device capable of wireless data communication, comprising a wireless data communication modem unit for transmitting and receiving IP packet data in a protocol. 2. The wireless data communication modem unit includes: a signal control unit that controls transmission and reception of data to and from a mobile phone device;
The packet communication interface means for accessing the control channel between the mobile telephone apparatus and the base station and performing a trigger signal for performing IP packet data communication to the signal control means, and performing the IP packet data communication When a modem control command set in the communication software of the data terminal device is recognized, a modem control command processing unit that activates the packet communication interface unit and the mobile phone device,
2. The data terminal device capable of wireless data communication according to claim 1, further comprising an IP data communication protocol processing means for performing a data link procedure for the IP packet data communication.