KR100562140B1 - Method for transmitting signal through channel conversion - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a signal transmission method through channel aggregation conversion and a computer readable recording medium having recorded thereon a program for realizing the method.

2. The technical problem to be solved by the invention

The present invention provides a signal transmission method and a method for realizing a relay line utilization rate of an exchange in use by preventing channel idle in the exchange system by diversifying channel aggregation in a private exchange period with an exchange in use in a switching system. To provide a computer-readable recording medium that records the program.

3. Summary of Solution to Invention

The present invention provides a signal transmission method between an inter-station exchange and a private exchange in a switching system, comprising: a first step of providing a converging converter in order to maximize an available rate of a line between the inter-station and the private exchange; A second step of the converging converter dividing the signal frame transmitted from the inter-switch according to the first channel (DS0) and storing it in a buffer; A third step of rearranging (converging) the signal frame divided by the first channel by the channel (DS1 level) of the desired output signal frame; And a fourth step of transmitting the rearranged output signal frames through the respective transmission apparatuses to corresponding private exchanges corresponding thereto.

4. Important uses of the invention

Industrial Applicability The present invention is used for accommodating a private exchange requiring fewer lines.

Switch, Frame, Buffer, Transmitter

Description

Signal transmission method through channel aggregation conversion {METHOD FOR TRANSMITTING SIGNAL THROUGH CHANNEL CONVERSION}             

1 is an exemplary configuration diagram of an exchange system to which the present invention is applied.

2A to 2D are diagrams illustrating an embodiment of a signal transmission method through channel aggregation conversion according to the present invention.

3A to 3C are diagrams illustrating an E1 frame used in the present invention.

* Explanation of symbols for the main parts of the drawings

11: switch 12: concentrator

13 transmission device 14 private exchange

The present invention relates to a signal transmission method for increasing the availability of a circuit by diversifying channel aggregation in a switching system between a switching center and a private exchange, and a computer-readable recording medium recording a program for realizing the method. will be.

Currently, T1 (North Non-Series Communication System), which can transmit digital signals (DS1) at 1.54 Mbps per second, and E1 (Europe, 2,048 Mbps) between exchanges and private branch exchanges (PABX / PBX). Method), after registering at the exchange according to the line of the corresponding private exchange, through the T1 / E1-specific port through the High Data Rate Digital Subscriber Line (HDSL) of the private exchange. It is connected by T1 and E1 Card, and when the private exchange accepts the DEC method, it is connected to the private exchange through the transmission room P32-T or KD-4 via ports T1 / E1 of the exchange.

As such, when the private exchange is currently operated in two ways, and the user requires a T1 / E1-specific HDSL connection method with better transmission quality, the private exchange is more suitable for T1 (24CH) / E1 (30CH). When applying for a line smaller than T1 / E1, the availability rate of the exchange side T1 / E1 line is affected. To solve this problem, the conversion of the new line is required in the relay transmitter. Until now, such a line aggregation conversion method is not implemented.

In this way, since the private exchange requires E1 connection even though fewer lines are used, a new signal transmission scheme is implemented during the private exchange period with the exchange in use to connect with the E1 card of the private exchange, thus preventing the idle channel on the exchange side. Therefore, a method to increase the trunk line availability of the exchanger in use is required.

In order to solve the problems as described above, the present invention, by diversifying the channel aggregation in the private exchange period with the exchange in use in the switching system, to prevent the idle channel on the exchange side to increase the relay line availability of the exchange in use It is an object of the present invention to provide a method for transmitting signals and a computer-readable recording medium having recorded thereon a program for realizing the method.

The present invention for achieving the above object is a signal transmission method between the inter-switch exchange and the private exchange period in the switching system, comprising a converging converter in order to maximize the availability of the line between the inter-station exchange and the private exchange. First step; A second step of the converging converter dividing the signal frame transmitted from the inter-switch according to the first channel (DS0) and storing it in a buffer; A third step of rearranging (converging) the signal frame divided by the first channel by the channel (DS1 level) of the desired output signal frame; And a fourth step of transmitting the rearranged output signal frames to the corresponding private exchanges corresponding to the rearranged output signal frames.

In addition, the present invention provides a switching system having a processor, comprising: a function of providing an aggregation conversion function in order to maximize an available rate of a line between an inter-station exchange and a private exchange; At the time of performing the aggregation conversion function, dividing a signal frame transmitted from the inter-switch exchange for each first channel (DS0) and storing it in a buffer; Rearranging (collectively converting) the signal frames divided by the first channel for each channel (DS1 level) of a desired output signal frame; And a computer readable recording medium having recorded thereon a program for realizing a function of transmitting the rearranged output signal frames to respective corresponding private exchanges through the respective transmission devices.

TSA (Time Slot Interchange) aggregation function is required to send T1 and E1 from exchange to HDSL, and there is no problem because it consists of one-to-one during HDSL and private exchange. In order to efficiently manage a private switch line that is intended to accommodate the network, convergence conversion such as two-to-one or three-to-one connection between the switch and the HDSL is required.

Therefore, the present invention releases the DS0 timeslot on the exchanger E1 frame into a buffer in the aggregation converter, regenerates it into the desired output frame, and relays it to the transmission device. That is, when the T1 and the E1 are connected between the exchange and the transmission device, the convergence conversion device is used to collect one-to-many (1: N).

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exemplary configuration diagram of an exchange system to which the present invention is applied. In the drawing, "11" is an exchanger, "12" is an aggregation converter, "13" is a transmission device (HDSL), and "14" is a private exchanger. Represent each.

As shown in Fig. 1, the exchange system to which the present invention is applied has a DS1 class configuration of E1 or T1 units at the time of connection between the current inter-office exchange 11 and the private exchange 14. This can maximize the availability of the circuit by providing the circuit converter 12 in the middle to increase the availability of the circuit.

First, the signal from the E1 port (unit) of the exchange 11 can be divided into the DS0 (64K) channels in the aggregation converter 12, and this channel can be reassigned to each DS1 line to change the route. Thereafter, each channel line is tied back to DS1 class T1 / E1 and connected to the private exchange 14 through each transmission device 13.

The aggregation converter 12 plays a role of relaying the DS0 timeslot on the exchanger E1 frame from the buffer provided therein to regenerate it into a desired output frame and relaying it to the transmission device 13.

The transmission device 13 is a high-speed digital subscriber device and is a device that enables high-speed transmission of T1 (1.544 Mbps) or E1 (2.048 Mbps) level without a separate relay device using an existing subscriber telephone line.

Since the transmission device 13 is symmetrical with the same data rate, it is used for T1 (1.544M) / E1 (2.048M) leased line service, and it takes much more time and manpower to construct a T1 / E1 leased line through an optical cable. Can be reduced.

2A to 2D are exemplary diagrams illustrating a signal transmission method through channel aggregation conversion according to the present invention.

In the method of transmitting a signal through channel aggregation conversion according to the present invention, first, as shown in FIG. 2A, a signal transmitted from the E1 port (unit) of the exchange 11 is received by the aggregation converter 12 and received from the DS0 input buffer. It is divided into DS0 class and stored. Here, assuming that the signal channel transmitted from the E1 port (unit) of the exchange 11 is 30, the E1 frame stored in the DS0 input buffer of the aggregation converter 12 is as shown in FIG. 3A.

Thereafter, as shown in FIG. 2B, the aggregation converter 12 moves each channel of the DS0 level stored in the DS0 input buffer 1 to each other DS0 input buffers 2, 3, ... by manual or automatic control. Reorder the frames and convert them to DS1 class E1 / T1.

For example, after one E1 line is stored in the DS0 input buffer 1, the channels 1 to 10 are moved to the DS0 input buffer 2 and the channels 11 to 30 are moved to the DS0 input buffer 3 under the control of the controller. At this time, the frames of the DS0 input buffer 2 are arranged in E1 and sent to the private exchange 2 (14) via the transmission path, and the DS0 input buffer 3 arranges the frames in another E1 and sent to the other private exchange 3 (14). . Here, the E1 frames stored in the DS0 input buffer 2 and the DS0 input buffer 3 after the line conversion are shown in FIGS. 3B and 3C, respectively.

Next, as illustrated in FIG. 2C, the aggregation converter 12 rearranges the DS1 input buffers to E1 / T1 of the DS1 level from each DS0 input buffer and transmits the stored channels to each transmission device 13.

Finally, as shown in FIG. 2D, each transmission device 30 connects the channel line bundled with T1 / E1 of DS1 class transmitted from the aggregation converter 12 into the private exchange 14. At this time, the person in charge of the private exchange can set and use the channel previously negotiated with the inter-switch exchange 11 side.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited to the drawings shown.

As described above, the present invention has the effect of preventing the idle channel on the exchange side, increasing the availability of the E1 card, and efficiently managing the channel line of the private exchange to accommodate fewer lines.

Claims (2)

In a signal transmission method between an inter-station exchange and a private exchange in a switching system, A first step of providing a aggregation converter to maximize the availability of the line between the inter-station exchange and the private exchange; A second step of the converging converter dividing the signal frame transmitted from the inter-switch according to the first channel (DS0) and storing it in a buffer; A third step of rearranging (converging) the signal frame divided by the first channel by the channel (DS1 level) of the desired output signal frame; And A fourth step of transmitting the rearranged output signal frames to the corresponding private exchange corresponding to the rearranged output signal frames; Signal transmission method through a transmission aggregation conversion comprising a. In an exchange system equipped with a processor, A converging conversion function for maximizing the availability of the circuit between the inter-station exchange and the private exchange; At the time of performing the aggregation conversion function, dividing a signal frame transmitted from the inter-switch exchange for each first channel (DS0) and storing it in a buffer; Rearranging (collectively converting) the signal frames divided by the first channel for each channel (DS1 level) of a desired output signal frame; And Transmitting the rearranged output signal frames to the corresponding private exchange corresponding to the rearranged output signal frames A computer-readable recording medium having recorded thereon a program for realizing this.

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