JPH04369941A - Charge system according to communication distance in atm network - Google Patents

Abstract

PURPOSE:To obtain charging information including the communication distance element by reading a reception cell accumulation number from a memory after a call is interrupted. CONSTITUTION:An initial value of the accumulation number of reception cells and charge information according to communication distance of a reception cell are written in a memory of a ATM network at setup (step S1) and every time a cell is received, the reception cell accumulation number and the distance charging information are read out of the memory and the arithmetic operation processing to add the distance charging information to the reception cell accumulation number is implemented (step S2) and the accumulation number of reception cells revised as above is sequentially written the memory (step S3) till the call is interrupted.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a land charging system in an ATM network.

0002

[Prior Art] ATM (Asynchronous
Transfer Mode (asynchronous transfer mode) is a transfer mode for transmitting all kinds of information, such as images, audio, and data, from wideband to narrowband. to transmit. That is, in this FIG. 5, 501 is user information, 502 is user information 501 divided into fixed lengths, and 503 is a header.

[0003] 504 is a cell, and this cell 504 is
A header 503 is added to user information 501 divided into fixed lengths 502, and this cell 504 is an ATM
It is the unit of information transmission in .

[0004] With the above configuration, the user information 501 is
When transmitting by TM, user information 501 is divided into fixed lengths, and this user information 501 is divided into fixed lengths 50
2 with a header 503 added thereto is transmitted as a unit called a cell 504.

FIG. 6 is a diagram showing the flow of information in an ATM network. In FIG. 6, 601 is a calling terminal;
2 is a receiving terminal, and 603 represents an ATM network. 60
Reference numeral 4 denotes an exchange on the originating side, and this exchange on the originating side 604 has the function of sending information sent from the originating terminal 601 to the destination exchange. Reference numeral 605 denotes a receiving side exchange, and this receiving side exchange 605 has the function of transmitting the received cell to a destination terminal and obtaining billing information from the cell information. 606 is an aggregation center, and this aggregation center 606 receives billing information from the receiving side exchange 605 and aggregates this billing information.

[0006] With such a configuration, the originating terminal 601
Cells transmitted from the ATM network 603 are sent on the ATM network 603. Then, it is sent to the receiving terminal 602. On the other hand, the receiving side exchange 605 obtains billing information from the cell information and sends it to an aggregation center 606, where the billing information is aggregated.

Next, FIG. 7 shows the flow of information regarding billing at the receiving exchange 605. In this FIG. 7, 701
is a cell disassembly unit, and this cell disassembly unit 701 extracts the VCI from the received cell and obtains communication distance information from the VCI.

[0008] 702 is a ROM, and this ROM 702
stores charging ground information that changes according to communication distance. Here, FIG. 10 shows an example of billing ground information stored in the ROM 702. Therefore, this ROM 702 transmits an integer corresponding to the communication distance as ground information according to the table shown in FIG.

Reference numeral 703 denotes a billing aggregation circuit, which obtains billing information from the number of received cells and the local information stored in the ROM 702. 705 is a collection center, which is the same as the collection center 606 in FIG. As a result, when the receiving exchange 704 receives a cell, information necessary for billing is sent from the cell disassembly unit 701 to the ROM 702 and the billing aggregation circuit 703.

The ROM 702 sends ground information to the charging totaling circuit 703 based on the stored information and the information sent from the cell disassembly section 701 . Then, the charge aggregation circuit 703
Then, billing information is obtained from the information from the cell disassembly unit 701 and the information from the ROM 702, and is transmitted to the aggregation center 705.

[0011] By the way, since cells are sent according to the amount of information when it is desired to send information, charging in an ATM network is based on the number of cells sent by the exchange on the receiving side, and the number of cells is counted. , is calculated by multiplying that number according to the communication distance.

FIG. 8 is a block diagram showing a billing aggregation circuit for carrying out a conventional billing method. In FIG. 8, 801 is an address generator, and this address generator 801 ) is used to generate an address according to the settings.

802 is a memory, and this memory 802
is used to store the number of received cells. 803,804
is an arithmetic circuit, the arithmetic circuit 803 adds "1" to the number sent from the memory 802, and the arithmetic circuit 804 adds "1" to the number sent from the memory 802.
Ground information n sent from (n is 0, 1, 2, 3,...
・).

Next, a conventional billing system will be explained using FIG. 9. First, call setup is performed and the logical channel (V
When a VCI (CI) is set, the address generator 801 generates an address and clears the register corresponding to the VCI in the memory 802. (which represents how many times the charge for transmission within the area corresponds to) is read from the ground information in the ROM (step a1).

[0015] From then on, when a cell is received on that VCI,
The value of the register in the memory 802 is read out, "1" is added to the value by the arithmetic circuit 803, and the resultant value is stored in the register of the memory 802 (steps a2 to a4).

[0016] Then, when the call is disconnected, the memory 802
The value of the register is read out, the value is multiplied by n in the arithmetic circuit 804, and sent to the aggregation center (YES route of step a2, steps a5 and a6).

[0017]

[Problem to be Solved by the Invention] However, in such a conventional land charging system in an ATM network, after a call is disconnected, the cumulative number of received cells read from a memory register is multiplied by a number of times according to the ground information. processing is required.

The present invention was devised in view of the above problem, and it is possible to obtain billing information including the ground element by reading the cumulative number of received cells from the memory after the call is disconnected. The purpose of the present invention is to provide a land-based charging system for ATM networks.

[0019]

[Means for Solving the Problems] FIG. 1 is an explanatory diagram of the principle of the present invention. As shown in FIG. 1, the principle of the present invention is that when a call is set up, three It consists of two steps.

(1) Step S1 of writing the initial value of the cumulative number of received cells and the local charging information held by the received cells into the memory of the ATM network. (2) Step S2 of reading the cumulative number of received cells and land charging information from the memory each time a cell is received, and performing a calculation process of adding the land charging information to the cumulative number of received cells. (3) Step S3 in which the cumulative number of received cells updated in step S2 is sequentially written and updated in the memory until the call is disconnected.

[0021]

[Operation] In the above-described land charging system in the ATM network of the present invention, when a call is set up, in step S1, the initial value of the cumulative number of received cells and the land charging information held by the received cells are stored in the memory of the ATM network. Write.

Thereafter, in step S2, each time a cell is received, the cumulative number of received cells and the local charging information are read out from the memory, and arithmetic processing is performed to add the local charging information to the cumulative number of received cells. Then, in step S3,
Until the call is disconnected, the cumulative number of received cells updated in step S2 is sequentially written into the memory and updated.

[0023] With the above operation, after the call is disconnected, billing information including the ground element can be obtained by reading the cumulative number of received cells from the memory.

[0024]

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. Now, this embodiment relates to the charge aggregation circuit part of the receiving side exchange in the ATM network, but the charge aggregation circuit according to this embodiment includes an address generator 201, a memory 202, and , an arithmetic circuit 203, and a selector 204.

Here, the address generator 201 generates an address according to the setting of the logical channel (VCI), and the memory 202 stores the cumulative number of received cells and land charge information n (for example, n is the leased line). 0 if coming from within the area, 1 if coming from outside the area 1, 3 if coming from outside the area 2). Note that the data structure in the memory 202 is shown in FIG.

Furthermore, the arithmetic circuit 203 adds the memory 202 to the cumulative number of received cells sent from the memory 202.
Ground charging information n (n=0, 1, 2,
3,...) is added. selector 20
4 selects and outputs either the initial data or the calculation result from the calculation circuit 203.

With the above-described configuration, the present billing method will be explained using the flowchart shown in FIG. First, when a call is set up and a logical channel (VCI) is set, the address generator 201 generates an address, the register of the memory 802 corresponding to the VCI is cleared, and the initial data from the ROM is stored in that register. The ground billing information n and the initial value of the cumulative number of received cells are written via the selector 204 (step A1).

After that, when a cell with the VCI is received, the selector 204 is switched to the arithmetic circuit 203 side, the cumulative number of received cells and the ground charge information n are read from the memory 202, and the value obtained by adding them in the arithmetic circuit 203 is is written into the memory 202 as the cumulative number of cells received. Thereafter, additions are made in the same manner (steps A2 to A4). When the call is disconnected, the total number of received cells is read from the memory 202 and the value is sent as is to the aggregation center (step A5).

[0029] In this manner, when sending billing information including ground elements to the aggregation center, in the conventional ground billing method, it is necessary to read the cumulative number of received cells from memory and multiply it by the value of the ground billing information. However, in this land-based billing system, it is sufficient to send the value read from the memory as is, which simplifies the calculation for billing and also allows the scale of the calculation circuit to be reduced.

[0030]

As described in detail above, according to the local charging method in an ATM network of the present invention, when a call is set up, the initial value of the cumulative number of received cells and the local charging information held by the received cells are stored in the memory of the ATM network. After that, each time a cell is received, the cumulative number of received cells and the local billing information are read out from the memory, and arithmetic processing is performed to add the local billing information to the cumulative number of received cells, and the call is disconnected. The cumulative number of received cells updated as described above is sequentially written and updated in the memory until the total number of received cells is updated as described above, so when sending billing information including ground elements to the aggregation center, the value read from the memory can be sent as is. This has the advantage of making calculations for billing easier and reducing the scale of the calculation circuit.

[Brief explanation of drawings]

FIG. 1 is a diagram explaining the principle of the present invention.

FIG. 2 is a block diagram showing an embodiment of the present invention.

FIG. 3 is a diagram showing a data structure.

FIG. 4 is a flowchart showing the charging method of the present invention.

FIG. 5 is a diagram showing an ATM information transmission system.

FIG. 6 is a diagram showing the flow of information in an ATM network.

FIG. 7 is a diagram showing the flow of information regarding billing at the receiving side exchange.

FIG. 8 is a diagram showing a conventional charge totaling circuit.

FIG. 9 is a flowchart showing a conventional charging method.

FIG. 10 is a diagram showing an example of ground information stored in a ROM.

[Explanation of symbols]

201 Address generator 202 Memory 203 Arithmetic circuit 204 Selector 501 User information 502 User information divided into fixed lengths 503
Header 504 Cell 601 Originating terminal 602 Receiving terminal 603 ATM network 604 Originating exchange 605 Receiving exchange 606 Aggregation center 701 Cell disassembly unit 702 ROM 703 Billing aggregation circuit 704 Receiving exchange 705 Aggregation center 801 Address generator 802 Memory 803, 804 Arithmetic circuit

Claims (1)

[Claims] [Claim 1] When setting up a call, the ATM network memory (20
2), write the initial value of the cumulative number of received cells and the local charging information of the received cells, and thereafter, each time a cell is received, the cumulative number of received cells and the local charging information are stored from the memory (202). , performs arithmetic processing to add the local billing information to the cumulative number of received cells, and sequentially writes the cumulative number of received cells updated as above to the memory (202) until the call is disconnected. A land-based billing system for ATM networks, which is characterized by updates.