JPH05153282A - Exchange mode switching device for isdn terminal equipment - Google Patents

Abstract

PURPOSE:To reduce a communication tariff by automatically selecting an exchange mode of a more inexpensive communication tariff. CONSTITUTION:A communication time calculating part 3 calculates a communication time in a line exchange mode based on a data capacitance analyzed by a transfer data capacitance analyzing part 1. On the other hand, a packet number calculating part 4 calculates the number of packets in the using packet length of a packet exchange mode based on the data capacitance analyzed by a transfer data capacitance analyzing part 1. Next, a communication time/distance collating part 5 collates the communication time calculated by the communication time calculating part 3, a distance between a self subscriber's number and an opposite subscriber's number and a first communication tariff data table 7 to extract the communication tariff in the line exchange mode. On the other hand, a packet number/distance collating part 6 collates the packet number calculated by the packet number calculating part 4, the distance between the self subscriber's number and the opposite subscriber's number calculated by a distance calculating part 2 and a second communication data tariff table 8 to extract the communication tariff in the packet exchange mode. An exchange mode deciding part 12 decides either exchange mode of the two, of which communication tariff is more inexpensive than the other.

Description

Detailed Description of the Invention

[0001]

The present invention relates to ISDN (Integrated S
ervice Digital Network)
An IS involved in a terminal device, and particularly when transferring data, determines whether to transfer in a circuit switching mode or a packet switching mode and switches to either mode.
The present invention relates to a switching mode switching device for a DN terminal device.

[0002]

2. Description of the Related Art Conventionally, this type of ISDN terminal device transfers data by fixing the circuit switching mode to an unlimited 64 kbps or a packet switching mode regardless of the transfer data capacity and distance. .. When changing the mode, the user selects a menu from the keyboard of the ISDN terminal device to switch the mode.

[0003]

As described above, the conventional I
In the SDN terminal device, the transfer is fixed at either the unrestricted circuit switching mode of 64 kbps or the packet switching mode regardless of the transfer data capacity and distance. Due to the distance to the subscriber, there is a problem that the communication charge may increase in some cases.

The present invention has been made in view of the above problems, and an object thereof is to automatically switch to either the circuit switching mode or the packet switching mode in consideration of the relationship between the transfer data capacity and the distance. Another object of the present invention is to provide an exchange mode switching device for an ISDN terminal device that can reduce the communication charge.

[0005]

A switching mode switching device according to the present invention is a transfer data capacity analyzing means for analyzing the capacity of transfer data in an ISDN terminal device used by connecting to an ISDN network, and this transfer data capacity analysis. Communication time calculating means for calculating the communication time in the circuit switching mode based on the analysis result of the means, and packet number calculating for calculating the number of packets in the packet length used in the packet switching mode based on the analysis result of the transfer data capacity analyzing means Means, distance calculating means for calculating the distance between the self-subscriber number and the destination subscriber number, a first communication charge data table composed of a matrix structure of communication time and distance, and the first communication charge data A table and a communication time / distance display for collating the communication time obtained by the communication time calculating means and the distance obtained by the distance calculating means. Means, first communication fee setting means for setting a communication fee in the circuit switching mode based on the collation result of the communication time / distance collating means, and a second matrix composed of the number of packets of the used packet length and the distance. Communication fee data table, the second communication fee data table, the packet number / distance collating means for collating the distance obtained by the distance calculating means and the packet number obtained by the packet number calculating means, and this packet Second communication charge setting means for setting a communication charge in the packet switching mode based on the comparison result of the number / distance comparison means, and communication set by the first communication charge setting means and the second communication charge setting means. A communication charge comparing means for comparing charges; and a switching mode determining means for determining whether to use the circuit switching mode or the packet switching mode according to the comparison result of the communication charge comparing means. Those were.

In the exchange mode switching device of the present invention having such a configuration, the transfer data capacity analyzing means analyzes the capacity of the transfer data, and the communication time calculating means carries out circuit switching based on the analysis result of the transfer data capacity analyzing means. The communication time in the mode is calculated. Further, the packet number calculation unit calculates the number of packets in the packet length used in the packet switching mode based on the analysis result of the transfer data capacity analysis unit. On the other hand, the distance calculating means calculates the distance between the own subscriber number and the destination subscriber number. Then, in the communication time / distance collating means, the first communication fee data table is collated with the communication time obtained by the communication time calculating means and the distance obtained by the distance calculating means,
The communication charge in the circuit switching mode is set in the first communication charge setting means based on the comparison result of the communication time / distance comparing means.

On the other hand, in the packet number / distance collating means, the second communication charge data table is collated with the distance obtained by the distance calculating means and the packet number obtained by the packet number calculating means. The communication charge is set in the second communication charge setting means based on the matching result of the number / distance matching means. Then, the communication charges set by the first communication charge setting device and the second communication charge setting device are compared by the communication charge comparing device. The switching mode determining means determines whether to use the circuit switching mode or the packet switching mode based on the comparison result of the communication fee comparing means. That is, it is possible to automatically set the exchange mode with the lower communication charge, and to reduce the cost for data transfer.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 is a block diagram showing the basic configuration of an exchange mode switching device according to an embodiment of the present invention.

The exchange mode switching device of this embodiment comprises a transfer data capacity analysis unit 1 and a distance calculation unit 2. The transfer data capacity analysis unit 1 analyzes the capacity of the data to be transferred, and sends the analysis result to the communication time calculation unit 3. On the other hand, the distance calculation unit 2 calculates the distance between the own subscriber number and the destination subscriber number, and sends the calculation result to the communication time / distance matching unit 5 and the packet number / distance matching unit 6. There is.

The communication time calculation unit 3 calculates the communication time in the circuit switching mode unrestricted 64 kbps based on the data capacity analyzed by the transfer data capacity analysis unit 1 and sends the calculation result to the communication time / distance matching unit 5. It is something to send. The packet number calculation unit 4 calculates the number of packets in the used packet length in the packet switching mode based on the data capacity analyzed by the transfer data capacity analysis unit 1.

The communication time / distance collation unit 5 calculates the communication time calculated by the communication time calculation unit 3, the distance between the own subscriber number and the destination subscriber number calculated by the distance calculation unit 2, the communication time,
The communication fee in the circuit switching mode is extracted by collating with the first communication fee data table 7 having the distance matrix configuration. On the other hand, the packet number / distance collation unit 6 calculates the number of packets calculated by the packet number calculation unit 4, the distance between the own subscriber number and the destination subscriber number calculated by the distance calculation unit 2, and the packet of the used packet length. The communication fee in the packet switching mode is extracted by referring to the second communication fee data table 8 having a matrix of numbers and distances.

The first communication charge setting unit 9 sets the communication charge in the circuit switching mode extracted by the communication time / distance matching unit 5. In addition, the second communication charge setting unit 10
The communication fee in the packet switching mode extracted by the packet number / distance matching unit 6 is set. The communication charge comparison unit 11 compares the communication charge set by the first communication charge setting unit 9 with the communication charge set by the second communication charge setting unit 10. The exchange mode determination unit 12 receives the comparison result of the communication fee comparison unit 11 and determines and sets the exchange mode with the lower communication fee.

FIG. 1 shows an IS having the above-mentioned functional structure.
It is a figure showing the circuit structure of the control part periphery of a DN terminal device.

A keyboard 22 and a display 23 are connected to the central control unit 20 via an input / output interface unit 21. The central control unit 20 has a storage means (not shown), such as a ROM (Read Only Memory).
Are connected, and a program having the above-mentioned functions is stored in this ROM. The central control unit 20 determines the exchange mode based on this program and controls each unit such as the input / output interface unit 21. The input / output interface unit 21 controls the keyboard 22 under the control of the central control unit 20.
It also controls the display 23. From the keyboard 22, the data to be transferred by the user, the own subscriber number, the destination subscriber number, etc. are input. The display 23 displays the data, the number, the set fee, etc. input from the keyboard 22.

A floppy disk 24 is also connected to the central controller 20. Data for transfer is stored and saved in the floppy disk 24. The central control unit 20 controls the reading and writing operations of the data to and from the floppy disk 24, generates the layer 3 call control information message in the ISDN user / network interface, and performs the D channel control. Also,
A selection switch circuit 25 is connected to the central control unit 20, and a channel selection signal is sent to the selection switch circuit 25. The selection switch circuit 25 receives the selection signal and selects one of the two B channels. Protocol processing unit 26
Controls the layer 3 of the ISDN user / network interface based on the D channel information output from the central control unit 20, and based on the B channel information output from the selection switch circuit 25, the ISDN user / network interface The layers 1 and 2 are controlled.

Next, in such a configuration, the ISDN
The operation of transferring the data stored in the floppy disk 24 in the terminal device will be described with reference to FIGS.

When the user designates the file name on the floppy disk 24 from the keyboard 22 and inputs the destination subscriber number, the central control unit 20 analyzes the data by the following operation and exchange mode. To decide.

That is, in FIG. 2, the transfer data capacity analysis unit 1 analyzes the capacity of the data to be transferred. on the other hand,
The distance calculator 2 calculates the distance between the own subscriber number and the destination subscriber number. Then, the communication time calculation unit 3 calculates the communication time in the circuit switching mode unlimited 64 kbps based on the data capacity analyzed by the transfer data capacity analysis unit 1. Further, the packet number calculation unit 4 calculates the number of packets in the used packet length in the packet switching mode based on the data capacity analyzed by the transfer data capacity analysis unit 1.

Next, the communication time / distance collation unit 5 calculates the communication time calculated by the communication time calculation unit 3 and the distance between the self-subscriber number and the destination subscriber number calculated by the distance calculation unit 2; And the communication charge in the circuit switching mode is extracted. On the other hand, the packet number / distance collation unit 6 calculates the number of packets calculated by the packet number calculation unit 4, the distance between the own subscriber number and the destination subscriber number calculated by the distance calculation unit 2, and the second communication charge data. The table 8 is referred to and the communication charge in the packet switching mode is extracted.

Next, the communication charge setting unit 9 sets the communication charge extracted by the communication time / distance matching unit 5, while the communication charge setting unit 10 extracts the communication charge extracted by the number of packets / distance matching unit 6. To set. Subsequently, the communication charge comparison unit 11 compares the communication charge set by the communication charge setting unit 9 with the communication charge set by the communication charge setting unit 10, and performs communication based on the comparison result of the communication charge comparison unit 11. Decide the exchange mode of the cheaper one,
Set.

When the switching mode is set in this way, returning to FIG. 1, the central control unit 20 generates a message of layer 3 call control information and transfers the information to the protocol processing unit 26 through the D channel. To do. In addition, the central control unit 2
0 sends a channel selection signal to the selection switch circuit 25, and the selection switch circuit 25 receives this selection signal and selects one of the B channels. Then, the protocol processing unit 26 controls the layer 3 of the ISDN user / network interface based on the D channel information output from the central control unit 20, and controls the layers 1 and 2 based on the B channel information.

As described above, according to the exchange mode switching device of the ISDN terminal device of this embodiment, before the data transfer,
It is possible to automatically determine in advance whether to transfer at the unrestricted 64 kbps of the circuit switching mode or the packet switching mode in consideration of the communication charge. Therefore, the communication fee for data transfer can be reduced.

[0024]

As described above, according to the exchange mode switching device of the ISDN terminal device of the present invention, the transfer data capacity analyzing means for analyzing the capacity of the transfer data and the analysis result of the transfer data capacity analyzing means are used as the basis. A communication time calculating means for calculating the communication time in the circuit switching mode, a packet number calculating means for calculating the number of packets in the packet length used in the packet switching mode based on the analysis result of the transfer data capacity analyzing means, and the own subscriber. Distance calculating means for calculating the distance between the number and the subscriber number of the other party, a first communication charge data table having a matrix structure of communication time and distance, the first communication charge data table, and the communication time A communication time / distance collating means for collating the communication time obtained by the calculating means and the distance obtained by the distance calculating means, and the communication time / distance checking means. First communication charge setting means for setting the communication charge in the circuit switching mode based on the comparison result of the means, a second communication charge data table composed of a matrix structure of the number of packets of the used packet length and the distance, and The communication fee data table of No. 2, the packet number / distance collating means for collating the distance obtained by the distance calculating means and the packet number obtained by the packet number calculating means, and the collation result of the packet number / distance collating means. Second communication charge setting means for setting a communication charge in the packet switching mode based on the communication basis, and communication charge comparing means for comparing the communication charges set by the first communication charge setting means and the second communication charge setting means Since the communication mode comparing means is provided with a switching mode determining means for determining whether to use the circuit switching mode or the packet switching mode according to the comparison result of the communication fee comparing means, the communication fee can be reduced. It can be set square exchange mode automatically, thus an advantageous effect of reducing the communication charge of data transfer.

[Brief description of drawings]

FIG. 1 is a block diagram showing a circuit configuration of a control unit of an ISDN terminal device using an exchange mode switching device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a functional configuration of a central control unit in FIG.

[Explanation of symbols]

 1 Transfer data capacity analysis unit 2 Distance calculation unit 3 Communication time calculation unit 4 Packet number calculation unit 5 Communication time / distance matching unit 6 Packet number / distance matching unit 7 First communication charge data table 8 Second communication charge data table 9 First communication charge setting unit 10 Second communication charge setting unit 11 Communication charge comparing unit 20 Central control unit 21 Input / output interface unit 22 Keyboard 23 Display 24 Floppy disk 25 Selection switch circuit 26 Protocol processing unit

Continuation of front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location H04L 29/08 H04M 15/00 Z 7190-5K 8020-5K H04L 13/00 307 A

Claims (1)

[Claims] 1. An ISDN used by connecting to an ISDN network
In the terminal device, a transfer data capacity analyzing means for analyzing a capacity of transfer data, a communication time calculating means for calculating a communication time in a circuit switching mode based on an analysis result of the transfer data capacity analyzing means, and the transfer data capacity analyzing means. A packet number calculating means for calculating the number of packets in the packet length used in the packet switching mode based on the analysis result of the means, a distance calculating means for calculating the distance between the own subscriber number and the destination subscriber number, and the communication time. A first communication charge data table having a matrix configuration with distances, the first communication charge data table, the communication time obtained by the communication time calculation means and the distance obtained by the distance calculation means are collated. Communication time / distance collating means and first communication for setting communication fee in circuit switching mode based on the collation result of this communication time / distance collating means Charge setting means, a second communication charge data table having a matrix configuration of the number of packets of the used packet length and the distance, the second communication charge data table, and the distance and the number of packets obtained by the distance calculating means. Packet number / distance collating means for collating the packet number obtained by the calculating means, and second communication fee setting means for setting the communication fee in the packet switching mode based on the collating result of the packet number / distance collating means, A communication charge comparing means for comparing the communication charges set by the first communication charge setting means and the second communication charge setting means, and a circuit switching mode or a packet switching mode depending on the comparison result of the communication charge comparing means. And an exchange mode determining means for determining whether to set
Switching mode switching device for terminal devices.