KR100206745B1 - Method for controlling multi-trunk type signals between exchange stations - Google Patents

Abstract

The present invention relates to a signaling protocol for relaying between exchanges, and in particular, it is determined whether a local mode or a toll mode is determined according to a detection signal of an E1-class digital trunk. The present invention relates to a signal processing method for relaying between exchanges.

According to the present invention, when relaying between stations using a signal protocol of 1 (Bit), whether the local mode or the toll mode is checked according to the information detected in each channel, the trunk-type data is transferred to the identified mode. The offset value can be determined by setting the value of the timer or by setting the channel type to outgoing locally.The timer value and command can be read according to the determined offset value to serve different signaling protocols using the read timer value and command. have.

Description

Signal processing method for relay between exchanges

The present invention relates to a signaling protocol for relaying between exchanges, and in particular, it is determined whether a local mode or a toll mode is determined according to a detection signal of an E1-class digital trunk. The present invention relates to a signal processing method for relaying between exchanges.

In general, multi-trunk type signal (Muti Trunk Type Signal) of each channel, which is an inter-station relay signal between exchanges and exchanges, is used in E1 class digital trunks with capacity of 2048 (Kbit / s). of Post and Telecommunications Administration).

The Sitifit method is a standard code method adopted by the European 26 associations for videotex standardization, which functions as a character display function and displays a figure using an alpha mosaic coding method. By the way, the shape creation input is difficult, but hard copy output is easy to use a lot.

In the alpha mosaic coding scheme, when character information is transmitted to a terminal device in a coded form, the alpha mosaic coding scheme is converted into a dot form by a character generator in the terminal device and displayed. Here, when a picture is transmitted by combining a code of a predetermined mosaic pattern, the picture is displayed in the form of dots by the corresponding character generator and the picture is slightly roughened, but the price of the terminal device is low, and thus it is frequently used.

The present invention determines whether it is an incoming local protocol or an incoming toll protocol according to information detected in the E1 channel of a digital trunk that relays between stations of the exchange. In the case of (Outgoing), it is intended to be suitable for the service of the relay signaling protocol by providing different service protocols according to the command mode.

1 is a block diagram showing a signal processing apparatus for relaying between switching stations according to an embodiment of the present invention;

Fig. 2 is a flowchart showing a signal processing method for relaying between switching stations at incoming time according to an embodiment of the present invention.

3 is a flowchart showing a signal processing method for relaying between switching stations during outgoing according to an embodiment of the present invention;

Explanation of symbols on the main parts of the drawings

11: SIQ (Scanning Input Queue) 12: Base Job

13: Local Trunk Database

14: Toll Trunk Database

15: RAM 16: CPU

According to an embodiment of the present invention, a signal processing method for relaying between switching stations according to an embodiment of the present invention stores a command message applied through a carrier or a parallel bus scanned on a trunk line, and stores information from a corresponding stored carrier or message. Detecting a first process; Determining a channel mode from the detected information to determine whether a local mode or a toll mode is present; In the local mode, setting a trunk type data to an incoming mode locally or designating a channel type as an outgoing local to determine an offset value; A fourth step of reading a timer value and a command according to the determined offset value and serving a local signal protocol using the read timer value and command; A fifth step of determining the offset value by setting trunk type data to an incoming mode in the toll mode or designating a channel type as an outgoing toll in the toll mode; And a sixth process of reading a timer value and a command according to the determined offset value and serving a toll signal protocol using the read timer value and the command.

Hereinafter, with reference to the accompanying drawings will be described as follows.

1 is a block diagram illustrating a signal processing apparatus for relaying between switching stations according to an embodiment of the present invention. FIG. 2 is a flowchart showing a signal processing method for relaying between switching stations according to an embodiment of the present invention. A flowchart showing a signal processing method for relaying between switching stations during outgoing according to an embodiment of the present invention.

The signal processing apparatus for relaying between switching stations according to an embodiment of the present invention, as shown in Figure 1, so as to transmit the voice and data of 30 channels in a CAS (Channel Associated Signaling) mode in a high speed digital trunk circuit of the E1 class A scanning input queue (11), a base job (12), a local trunk database (13); A toll trunk database 14, a RAM 15, and a CPU 16 are included.

The SIQ 11 stores a carrier which is scanned and sent out every 8 (msec) from the trunk line.

The base job 12 detects necessary information from a carrier stored in the SIQ 11 and detects a command of a message stored in the RAM 15.

The local trunk database 13 stores a timer value and a command corresponding to the offset value according to the incoming mode setting.

The toll trunk database 14 stores a timer value and a command corresponding to an offset value according to the toll mode setting.

The RAM 15 receives a command message through a parallel bus for exchanging information between a main controller and a local board, and stores the command message in a predetermined area.

The CPU 16 exchanges information with the system by analyzing the information with the system and by analyzing the information applied from the partner station.

The present invention configured as described above is a twisted pair or coaxial cable (Coxial) by converting the voice signal and data applied through the CEPT Interface Module and the highway into a digital signal to the PCM (Pulse Code Modulation) method Cable) can be sent to the other exchange, and when transmitting digitalized voice signals and data from the other station to the corresponding CEPT interface module and highway, call and data transmission with the terminal through switching inside the system. This is possible. Here, the twisted pair is a pair of lines used as transmission circuits, twisted with each other to minimize coupling with other circuits, and a pair cable is composed of thousands of twisted pairs (LAN) It is one of the transmission mediums of), which is a relatively low speed and low price column, and is mainly used for a personal computer (PC) network.

In addition, 1 (bit) CAS is used, and the signal type is bidirectional, has a toll mode and a local mode, and determines the local mode or the toll mode according to the detection signal of the E1 class digital trunk, Since the present invention provides a different signal processing method for relaying between exchanges according to an embodiment of the present invention for efficiently managing a channel, it will be described as follows.

First, referring to the signal processing operation for relaying in the case of the incoming with reference to the flowchart of FIG. 2, the carrier is scanned at every 8 (msec) interval in the trunk line (step S1), and the corresponding SIQ 11 is performed. Stores the carrier scanned from the trunk line (step S2).

Then, the base job 12 detects the necessary information from the carrier stored in the SIQ 11 (step S3), and the CPU 16 locally according to the duration of the information detected by the base job 12. It is checked whether it is in mode or toll mode (step S4).

Accordingly, if the detected information is the local mode in the fourth step S4, the CPU 16 locally sets the trunk type data to the incoming mode (step S5). One Offset Value is determined (step S6).

Accordingly, the CPU 16 reads the first timer value and the first command stored in the local trunk database 13 according to the determined first offset value (step S7), and the read first timer. Service the local signaling protocol using the value and the first command (step S8).

On the other hand, if the detected information is the toll mode in the fourth step S4, the CPU 16 sets the trunk type data to the incoming mode in the toll (step S9) and determines a second offset value (step S9). S10).

Accordingly, the CPU 16 reads the second timer value and the second command stored in the toll trunk database 14 according to the determined second offset value (step S11), and the read second timer. Toll signaling protocol using the value and the second command is serviced (step S12).

Secondly, referring to the relay signal processing operation in the case of outgoing with reference to the flowchart of FIG. 3, a command message is received through a parallel bus and stored in a predetermined area of the RAM 15 (step T1). The base job 12 detects a command of a message stored in the RAM 15 (step T2).

Then, the CPU 16 determines the mode of the channel as a result detected by the base job 12 (step S3), and confirms whether the designated mode is the local mode or the toll mode according to the determined mode (step T4). ).

Accordingly, if the designated mode is the local mode in the fourth step T4, the CPU 16 designates the form of the channel as outgoing local (step T5) and determines a third offset value (step T6). .

Accordingly, the CPU 16 reads the third timer value and the third command stored in the local trunk database 13 according to the determined third offset value (step T7), and the read third Service the local signaling protocol using the timer value and the third command (step T8).

On the other hand, if the designated mode is the toll mode in the fourth step T4, the CPU 16 designates the form of the channel as an outgoing toll (step T9) and determines a fourth offset value (step T10).

Accordingly, the CPU 16 reads the fourth timer value and the fourth command stored in the toll trunk database 14 according to the determined fourth offset value (step T11), and the read fourth Service the toll signal protocol using the timer value and the fourth instruction (step T12).

As described above, in the case of relaying between stations using the signal protocol of 1 (Bit) according to the present invention, whether the local mode or the toll mode is checked according to the information detected in each channel, the trunk-type data is stored in the identified mode. Set the incoming mode or specify the channel type as outgoing local to determine the offset value, and read the timer value and command according to the determined offset value to determine the signal protocol using the read timer value and command. You can service differently.

Claims (1)

Storing a command message authorized through a carrier or parallel bus scanned in the trunk line, and detecting information from the stored carrier or message; Determining a channel mode from the detected information to determine whether a local mode or a toll mode is present; In the local mode, setting a trunk type data to an incoming mode locally or designating a channel type as an outgoing local to determine an offset value; A fourth step of reading a timer value and a command according to the determined offset value and serving a local signal protocol using the read timer value and command; A fifth step of determining the offset value by setting trunk type data to an incoming mode in the toll mode or designating a channel type as an outgoing toll in the toll mode; And a sixth step of reading a timer value and a command according to the determined offset value, and serving a toll signal protocol using the read timer value and the command.

Images