JPH1127323A - Data communication terminal adaptor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the data communication terminal adaptor that makes data communication according to the V110 protocol with a data communication terminal connecting to a PHS slave set by a PIAFS protocol. SOLUTION: A communication terminal adaptor 3A is provided with an ISDN interface 11, a radio interface 15, and an ROM 13A that stores ISDN interface control, ISDN call control, V.110 frame control, PIAFS control, radio call control and radio interface control. Furthermore, by using a program read from the ROM 13A by a CPU 12A, a PIAFS protocol for data communication with a data communication terminal 6 or a V.110 protocol for data communication with an ISDN2 is alternately terminated, data by each protocol are relayed with each other and data communication between the data terminal employing the PIAFS protocol and the data terminal adopting the V.110 protocol is conducted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a data communication terminal using an ISDN interface and a data communication terminal adapter device accommodating a data communication terminal using a wireless interface.

[0002]

2. Description of the Related Art FIG. 3 is a block diagram showing a configuration of a conventional data communication terminal adapter device. The data communication adapter device 3 is provided so as to be connectable to a data communication terminal 1 via an ISDN 2. Data communication adapter device 3
In contrast, a PHS handset 5 of a data communication terminal 6 for performing data communication with the data communication terminal 1 is provided.

The data communication adapter device 3 is provided with a CPU 12 for controlling the entire operation.
ISDN interface 1 for transmitting and receiving D channel control messages to and from ISDN 2 and performing an interface operation
1, a wireless interface 15 for transmitting and receiving wireless signals of the PHS slave 5 and performing an interface operation, a ROM 13 storing a program for data communication control, and a RAM for storing and reading various data during the control operation
14 are connected.

[0004] The ROM 13 stores an ISDN interface control unit 13 a in which a program for controlling the ISDN interface 11 is stored, and a control program for generating / ending an ISDN call based on a received message and determining a transmission message. ISDN call control unit 13
b, wireless interface control unit 1 storing a program for wireless interface control and transmission / reception of control messages
3c, and PHS performed based on the received message
A wireless call control unit 13d in which a program for generating and ending a call and for determining a transmission message is stored is provided.

The CPU 12 includes an ISDN interface control means for issuing an ISDN interface control command, an ISDN call control means for issuing an ISDN call control command, a radio interface control means for issuing a radio interface control command, and a radio call control command. Is provided.

[0006] Further, the radio interface 15, the PHS slave device 5, and the data communication terminal 6 are provided with a PIAFS (PHS I
internet Access Forum Stan
dar) protocol. This protocol is a transmission format for data transmission and reception when performing data communication using PHS,
This protocol defines the data retransmission method when a transmission error occurs. By using this protocol, the PHS 32 kbit / s
The communication band of s is sufficiently used for data communication, and high-speed data communication is realized. This protocol is executed immediately after a call has occurred, and is used for transmitting and receiving data.

Here, the communication between the data communication terminal 6 connected to the PHS slave 5 and the data communication terminal 1 connected via the ISDN 2 is transmitted by the data communication terminal 6 connected to the PHS slave 5. The case where the processing is performed will be described.

[0008] When the data communication terminal 6 requests the data communication terminal 1 to make a call for performing data communication, P
The HS handset 5 receives the request and sets the
The transmission request message according to the HS protocol is transmitted.
This transmission request message is received by the CPU 12,
Each control unit of the PU 12 performs the following processing based on a control program read from each control unit of the ROM 13.

When the radio interface control means detects that the received transmission request message is a transmission request to the data communication terminal 1 by the control program of the radio interface control section 13c, the radio call control means
ISD based on the control program of the wireless call control unit 13d
A call request message is input to the N-call control means. IS
The DN call control means uses the RAM 14 to create an outgoing message that can be transmitted to the ISDN D channel by the control program of the ISDN call control unit 13b, and inputs the created outgoing message to the ISDN interface control means. And the ISDN interface control means,
According to the control program of the ISDN interface control unit 13a, the outgoing message is sent to the ISDN interface 1
1 and the ISDN interface 11
An outgoing message is transmitted to data communication terminal 1 via DN2. In this way, the incoming message is transmitted to the data communication terminal 1 via the ISDN 2, and when the data communication terminal 1 transmits the response message,
The response message is received by the ISDN interface 11 via the SDN 2 and is sent to the ROM 13 by the CPU 12.
Is performed based on the control program stored in the ISDN2, the received message is analyzed as a response message, and a call is established on the ISDN2 side. Then, via the wireless interface 15, P
By transmitting a response message to the HS client 5,
Notify that the call on the SDN2 side has been established. Based on this, the data communication terminal 6 makes preparations for starting data communication.

The PHS slave 5 activates the PIAFS protocol triggered by the reception of the response message, and the data communication terminal 1 starts transmitting the response message.
Start the PIAFS protocol. Each is PIAF
By starting the S protocol and establishing the protocol, data communication between the data communication terminals 1 and 6 can be performed.

[0011]

However, in the conventional data communication terminal adapter device, the data communication terminal 1 uses the PIA.
There is a problem that data communication cannot be executed unless the data communication terminal realizes the FS protocol. For this reason, data communication with a communication terminal that performs data communication according to a protocol such as ITU-T Recommendation V110, which is widely used, or PPP used in Internet communication, as a data communication protocol on the conventional ISDN can be performed. There is no problem.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. It is an object of the present invention to provide a data communication terminal connected to a PHS slave unit using the PIAFS protocol and a data communication using the V110 protocol or the PPP protocol. A possible data communication terminal adapter device is provided.

[0013]

A data communication terminal adapter device according to the present invention comprises: an ISDN interface for transmitting / receiving data to / from an ISDN; a wireless interface for transmitting / receiving data to / from a wireless terminal; Interface control, ISDN call control, A storage unit storing a program for executing 110 frame control, PIAFS control, wireless call control, and wireless interface control; a PIAFS protocol used for data communication with a wireless terminal based on the program read from the storage unit; V.IS used for data communication with ISDN 110
By alternately terminating the protocols, the data transmitted by each protocol is relayed to each other, and the PIA
Data terminal using the V.F protocol and V.F. Control means for controlling data communication between data terminals using the H.110 protocol.

According to the present invention, based on the program read from the storage means, the control means controls the PIAFS protocol used for data communication with the wireless terminal and the V.F. protocol used for data communication with the ISDN. By alternately terminating the protocols, the data transmitted by each protocol is relayed to each other, and the data terminal using the PIAF protocol and the V.110 protocol are used. Data communication between data terminals using the 110 protocol can be executed.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 is an ISDN
An ISDN interface for exchanging data with a wireless terminal, a wireless interface for exchanging data with a wireless terminal, ISDN interface control, ISDN call control, A storage unit storing a program for executing 110 frame control, PIAFS control, wireless call control, and wireless interface control; a PIAFS protocol used for data communication with a wireless terminal based on the program read from the storage unit; V.IS used for data communication with ISDN By alternately terminating the protocols, the data transmitted by each protocol is relayed to each other, and the data terminal using the PIAF protocol and the V.110 protocol are used. Control means for controlling data communication between data terminals using the H.110 protocol.

According to the first aspect of the present invention, the control means controls the program based on the program read from the storage means.
The PIAFS protocol used for data communication with a wireless terminal and the V.A. protocol used for data communication with an ISDN. 11
0 are alternately terminated, data transmitted by each protocol are relayed to each other, and a data terminal using the PIAF protocol and a V.0 protocol are used. Data communication is performed between data terminals using the 110 protocol.

According to a second aspect of the present invention, there is provided an ISDN interface for transmitting / receiving data to / from an ISDN, a wireless interface for transmitting / receiving data to / from a wireless terminal, ISDN interface control, ISDN call control,
Storage means storing a program for executing PP frame control, PIAFS control, radio call control, and radio interface control, and a PIAF used for data communication with a radio terminal based on the program read from the storage means
By alternately terminating the S protocol and the PPP protocol used in data communication with the ISDN, data transmitted by each protocol is relayed to each other,
It has a control means for controlling data communication between a data terminal using the PIAF protocol and a data terminal using the PPP protocol.

According to the second aspect of the present invention, the control means controls the program based on the program read from the storage means.
The PIAFS protocol used for data communication with the wireless terminal and the PPP protocol used for data communication with the ISDN are alternately terminated, and data transmitted by the respective protocols are relayed with each other to use the PIAF protocol. Data communication is performed between the data terminal and the data terminal using the PPP protocol.

[First Embodiment] A first embodiment of the present invention will be described with reference to FIG.

FIG. 1 is a block diagram showing the configuration of the present embodiment. In the present embodiment, as shown in FIG.
In contrast to the conventional data communication terminal adapter device already described with reference to FIG. 3, the ROM 13A stores the V.V. data when performing data communication with the data communication terminal 1 via the ISDN 2. The V.110 protocol is implemented when transmitting and receiving data. A V.110 storing a control program such as control of 110 frames, storage of transmission data in a frame, and extraction of data from a reception frame. 110 frame control unit 13
e is newly provided. Similarly, the PIAFS control for performing data communication with the data communication terminal 6 having the PHS interface is realized in the ROM 13A,
A PIAFS control unit 13f is newly provided in which a control program for controlling a PIAFS frame when transmitting and receiving data, storing transmission data in a frame, extracting data from a reception frame, and the like is stored.

Then, the CPU 12A transmits the V.V. data at the time of data communication with the data communication terminal 1. Implementation of the 110 protocol,
V. when transmitting / receiving data V. 110, which instructs control of 110 frames, storage of transmission data in a frame, and control of extraction of data from a reception frame. The 110 frame control means implements a PIAFS protocol at the time of data communication with the data communication terminal 6, controls a PIAFS frame at the time of data transmission / reception, stores transmission data in a frame, and controls data extraction from a reception frame. PIAF to command
An S control means is newly provided.

The configuration of the other parts of the present embodiment is the same as that of the conventional data communication terminal adapter device already described with reference to FIG. 3, and therefore will not be described again.

Next, the operation of this embodiment will be described. In this case, the PHS slave 5 that communicates with the wireless interface 15 of the data communication terminal adapter 3A is
The data communication terminal 1 supports the V.S protocol. It shall support the H.110 protocol. Also, the PIAFS protocol, V.A. The 110 protocol is executed immediately after a call has occurred, and is used for transmitting and receiving data.

The data communication terminal 6 connected to the PHS slave 5 and the data communication terminal 1 connected via the ISDN 2
A case where the data communication terminal 6 connected to the PHS slave device 5 performs communication processing will be described.

When data communication terminal 6 requests data communication terminal 1 to make a call for performing data communication, P
The HS handset 5 receives the request and transmits a call request message according to the PHS protocol to the wireless interface 15.

This transmission request message is sent to the CPU 12A
Is received by the control unit of the CPU 12A.
The following processing is performed based on the control program stored in each control unit of M13A.

First, V.I. 110 frame control means,
V. The transmission request message is input to the PIAFS control unit according to the control program of the 110 frame control unit 13e, and the PIAFS control unit determines that the transmission request message is a transmission request to the data communication terminal 1 according to the control program of the PIAFS control unit 13f. If detected, ISDN
A call request message to the data communication terminal 1 is input to the call control means. The ISDN call control means, based on the control program of the ISDN call control unit 13b,
Generate an outgoing message that can be sent to the channel, and
Input to the DN interface control means, and the ISDN interface control means
According to the control program of FIG.
Input to the DN interface 11.

In this case, the outgoing message generated by the ISDN call control means is temporarily stored in the RAM 14,
14 is read out by the ISDN interface control means and transferred to the ISDN interface 11.

The ISDN interface 11 transmits an incoming message to the data communication terminal 1,
Transmits a response message, the response message is input from the ISDN 2 to the data communication terminal adapter 3A.

When the ISDN interface 11 inputs a received message to the CPU 12A, each control means of the CPU 12A analyzes that the received message is a response message by a procedure reverse to that at the time of transmission based on a control program in the ROM 13A. , The call on the ISDN 2 side is established, and the PH
A response message is transmitted to the S slave 5 to notify the establishment of the call on the ISDN 2 side.
Preparations for starting data communication are made.

The ISDN call control means transmits the ISDN call control means to the radio call control means in accordance with the control data of the ISDN call control section 13b.
The establishment of the call on the second side is notified, and the radio call control means communicates with the data communication terminal 1 based on the control data of the radio call control unit 13d. Preparation for transmission / reception of the 110 protocol is performed. The PIAFS control unit inputs a response message to the PHS slave unit 5 and a notification of the establishment of a call on the wireless side to the wireless interface control unit based on the control program of the PIAFS control unit 13f. Prepares for transmission and reception of the PIAFS protocol with the data communication terminal 6.

The PHS slave 5 starts the PIAFS protocol triggered by the reception of the response message, and the data communication terminal 6 can start the data communication by the PIAFS protocol via the wireless interface control means by the start. Become. At the time of transmitting the response message, the data communication terminal 1 transmits 110 protocol and activates V.110 via the wireless call control means. Data communication according to the 110 protocol can be started.

When each protocol is established,
Data communication is performed, and data transmitted from the data communication terminal 6 is transmitted to the wireless interface control means by the PI.
The data is written in the RAM 14 as transmission data out of the frame according to the AFS protocol. The wireless interface control means notifies the wireless call control means that there is transmission data. The radio call control means fetches data from the RAM 14 based on the notification, 110 frame, and the IS
Send to DN2. The data transmitted from the data communication terminal 1 to the ISDN interface 11 via the ISDN 2 is transmitted to the V.223 by the radio call control means. The data is written into the RAM 14 as received data that has been removed from the 110 frame.
The wireless call control unit notifies the wireless interface control unit that there is received data. The wireless interface control means reads data from the RAM 14 based on the notification, stores the data in the PIAFS frame, transmits the data to the PHS slave 5 via the wireless interface 15, and transmits the data between the data communication terminal 6 and the data communication terminal 1. Is performed.

As described above, according to the present embodiment, PH
A data communication terminal 6 connected to the S 110
High-speed data communication can be realized with the data communication terminal 1 that realizes the protocol.

[Second Embodiment] A second embodiment of the present invention will be described with reference to FIG.

FIG. 2 is a block diagram showing the configuration of the present embodiment. In the present embodiment, as shown in FIG.
In contrast to the conventional data communication terminal adapter device already described with reference to FIG. 3, when data communication with the data communication terminal 1 is performed via the ISDN 2 in the ROM 13B,
A PPP frame control unit 13g is newly provided in which a control program for implementing PPP communication, controlling a PPP frame when transmitting and receiving data, storing transmission data in a frame, and extracting data from a reception frame is stored. ing. Similarly, the ROM 13B implements a PIAFS protocol when performing data communication with the data communication terminal 6 having the PHS interface, controls a PIAFS frame when transmitting and receiving data, stores transmission data in a frame, and stores a received frame. Control unit 13 in which a control program for controlling data extraction and the like is stored
f is newly provided.

The CPU 12A has a function of implementing the PPP protocol at the time of data communication with the data communication terminal 1, controlling a PPP frame at the time of data transmission / reception, storing transmission data in a frame, and extracting data from a reception frame. PPP frame control means for instructing control, realization of a PIAFS protocol at the time of data communication with the data communication terminal 6, control of a PIAFS frame at the time of data transmission / reception, storage of transmission data in a frame, extraction of data from a reception frame And PIAFS control means for instructing such controls.

The other parts of the configuration of the present embodiment are the same as those of the conventional data communication terminal adapter device already described with reference to FIG. 3, and therefore, will not be described repeatedly.

Next, the operation of this embodiment will be described. In this case, the PHS slave device 5 that communicates with the wireless interface 15 of the data communication terminal adapter device 3B is
The data communication terminal 1 shall support the S protocol, and shall support the PPP protocol. Also, the PIAFS protocol and the PPP protocol are executed immediately after a call has occurred, and are used for transmitting and receiving data.

The data communication terminal 6 connected to the PHS slave 5 and the data communication terminal 1 connected via the ISDN 2
A case where the data communication terminal 6 connected to the PHS slave device 5 performs communication processing will be described.

When data communication terminal 6 requests data communication terminal 1 to make a call for data communication, P
Upon receipt of the request, the HS handset 5 transmits a call request message according to the PHS protocol to the wireless interface 15,
The respective control means of the CPU 12B that has received the transmission request message controls the following processing based on the control programs stored in the respective control units of the ROM 13B.

First, the PPP frame control means checks that the PPP
According to the control program of the frame control unit 13g, the transmission request message is input to the PIAFS control means, and the PIA
The FS control unit transmits the outgoing request message to the data communication terminal 1 according to the control program of the PIAFS control unit 13f.
When the request is transmitted to the data communication terminal 1, the message is transmitted to the ISDN call control means. The ISDN call control means includes an ISDN call control unit 13b.
A transmission message that can be transmitted to the D channel of ISDN2 is generated based on the control program of ISDN2, and input to the ISDN interface control means. The ISDN interface control means converts the transmission message to the ISDN interface control unit 13a by the control program of the ISDN interface control unit 13a. Input to the interface 11.

In this case, the outgoing message generated by the ISDN call control means is temporarily stored in the RAM 14,
14 is read out by the ISDN interface control means and transferred to the ISDN interface 11.

The ISDN interface 11 transmits an incoming message to the data communication terminal 1,
Transmits a response message, the response message is input from the ISDN 2 to the data communication terminal adapter 3B.

When the ISDN interface 11 inputs a received message to the CPU 12B, each control means of the CPU 12B analyzes that the received message is a response message by a procedure reverse to that at the time of transmission based on a control program in the ROM 13B. , The call on the ISDN 2 side is established, and the PH
A response message is transmitted to the S slave 5 to notify the establishment of the call on the ISDN 2 side.
Preparations for starting data communication are made.

The ISDN call control means transmits the ISDN call control means to the radio call control means in accordance with the control data of the ISDN call control section 13b.
The establishment of the call on the second side is notified, and the radio call control means prepares for transmission and reception of the PPP protocol with the data communication terminal 1 based on the control data of the radio call control unit 13d. Also,
The PIAFS control unit, based on the control program of the PIAFS control unit 13f,
The response message to the PHS slave 5 and the notification of the establishment of the call on the wireless side are input, and the wireless interface control unit prepares for transmission and reception of the PIAFS protocol with the data communication terminal 6.

The PHS slave 5 activates the PIAFS protocol triggered by the reception of the response message, and the activation enables the data communication terminal 6 to start data communication by the PIAFS protocol via the radio interface control means. . At the time of transmitting the response message, the data communication terminal 1 activates the PPP protocol,
Data communication by the PPP protocol can be started via the wireless call control means.

When each protocol is established,
Data communication is performed, and data transmitted from the data communication terminal 6 is transmitted to the wireless interface control means by the PI.
The data is written in the RAM 14 as transmission data out of the frame according to the AFS protocol. The wireless interface control means notifies the wireless call control means that there is transmission data. The radio call control means takes out the data from the RAM 14 based on the notification, stores the data in the PPP frame, and sends the data through the ISDN interface 11 to the ISDN.
Send to 2. The data transmitted from the data communication terminal 1 to the ISDN interface 11 via the ISDN 2 is written into the RAM 14 by the wireless call control means as received data removed from the PPP frame. The wireless call control unit notifies the wireless interface control unit that there is received data. The wireless interface control means reads data from the RAM 14 based on the notification, stores the data in the PIAFS frame, transmits the data to the PHS slave 5 via the wireless interface 15, and transmits the data between the data communication terminal 6 and the data communication terminal 1. Is performed.

As described above, according to the present embodiment, PH
High-speed data communication can be realized between the data communication terminal 6 connected to the S slave device 5 and the data communication terminal 1 that implements the PPP protocol.

[0050]

According to the first aspect of the present invention, there is provided a data communication terminal adapter device comprising: an ISDN interface for exchanging data with an ISDN; a radio interface for exchanging data with a radio terminal; ISDN interface control, ISDN call control, A storage unit storing a program for executing the 110-frame control, the PIAFS control, the radio call control, and the radio interface control, so that the control unit transmits data to the radio terminal based on the program read from the storage unit PIAFS protocol used for communication and ISDN
Used in data communication with 110 are alternately terminated, data transmitted by each protocol are relayed to each other, and a data terminal using the PIAF protocol and a V.110 protocol are used. Data communication can be performed between data terminals using the 110 protocol.

According to a second aspect of the present invention, there is provided a data communication terminal adapter device including: an ISDN interface for transmitting / receiving data to / from an ISDN; a wireless interface for transmitting / receiving data to / from a wireless terminal; Storage means for storing programs for executing control, ISDN call control, PPP frame control, PIAFS control, wireless call control, and wireless interface control. The PIAFS protocol used for data communication with the wireless terminal and the PPP protocol used for data communication with the ISDN are alternately terminated, and data transmitted by the respective protocols are relayed to each other, and the PIAF protocol is used. Data terminal and PPP protocol It becomes possible to perform data communication between data terminals that use.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration according to a first embodiment of the present invention;

FIG. 2 is a block diagram illustrating a configuration according to a second embodiment of the present invention;

FIG. 3 is a block diagram showing a configuration of a conventional data communication terminal adapter device.

[Explanation of symbols]

 Reference Signs List 1 data communication terminal 2 ISDN 3A, 3B data communication terminal adapter device 5 PHS slave 6 data communication terminal 11 ISDN interface 12A, 12B CPU 13A, 13B ROM 15 wireless interface

Claims (2)

[Claims] 1. An ISDN interface for exchanging data with an ISDN, a radio interface for exchanging data with a radio terminal, an ISDN interface control, an ISDN call control, Storage means for storing a program for executing 110 frame control, PIAFS control, wireless call control, and wireless interface control;
Based on a program read from the storage means, a PIAFS protocol used for data communication with a wireless terminal and a V.A. protocol used for data communication with an ISDN are used. By alternately terminating the 110 protocols, the data transmitted by each protocol is relayed to each other, and the PIAF
Data terminal using the V. protocol Control means for controlling data communication between data terminals using the H.110 protocol. 2. An ISDN interface for exchanging data with ISDN, a radio interface for exchanging data with a radio terminal, an ISDN interface control, an ISDN call control, a PPP frame control,
Storage means for storing a program for executing IAFS control, radio call control, and radio interface control; a PIAFS protocol used for data communication with a radio terminal based on a program read from the storage means;
By alternately terminating the PPP protocol used in data communication with the DN, data transmitted by each protocol is relayed to each other, and a data terminal using the PIAF protocol and a data terminal using the PPP protocol are exchanged. A data communication terminal adapter device, comprising: control means for controlling the data communication.