JPS58170265A - Signal processing system of digital exchange - Google Patents

Abstract

PURPOSE:To obtain a signal processing system with a simplified constitution, by processing a monitoring signal on a digital multiplex transmission line for input and output and in devised timing, in time division corresponding to a channel. CONSTITUTION:The monitor signal representing the start from an opposing station is stored at a monitor signal receiver 20 tentatively corresponding to channels and transmitted to a controller 205. The controller 205 forms scanning information relating to incoming, transmits it to a scanning information transmitter 203 for tentative storage, and sets a monitor timer for the restoration of the opposing station. A central controller (not shown) reads the content of the device 203 with a scanning signal and stores the resulting control information to a controller 204 tentatively. The controller 205 reads it, converts it into the monitor signal and transmits the signal to the opposing station via a monitor signal transmitter 202. The above described operation is for the incoming call, but the signal is processed almost similarly for the outgoing call.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a signal processing method for a digital exchange, and particularly to a signal processing method for a digital interface section in a digital exchange connected to a digital multiplex transmission line.

Conventionally, signal processing in a digital interface section of a digital exchange has been configured as shown in FIG. That is, the supervisory signal receiving line 101
A time-division multiplexed monitoring signal from a digital transmission path sent through is spatially developed in monitoring signal temporary storage devices 1030 to 103n placed corresponding to channels,
Timing generators 105o to 105. which are stored and whose output lines are also placed corresponding to channels. According to the line condition corresponding to each channel, timing is generated as a control signal or a display signal, and scanning information is provided to the central control unit of the digital exchange through scanning information lines 1060 to 106n.

ζ Here, the timing creation process refers to, for example, the process of determining the recovery timing for restricting incoming and outgoing calls on the line until a certain point occurs.

On the other hand, from the central control device to the control information lines 107.
07. The control information through the timing generator 1
05.~105n is converted into a control signal or display signal compatible with the channel, and 1 monitoring signal concentrator 1
04, the lines are concentrated according to the time-division multiplexed frame format of the digital transmission line, and the supervisory signal transmission line
The signal is sent out to the digital multiplex transmission line through the .

Because of this configuration, a signal processing device including a timing generator for supervisory signal processing between the digital multiplex transmission line and the digital exchange is required for each channel, which is extremely wasteful.

The object of the invention is to provide a digital interface 1
A control device capable of time-division input/output processing of the supervisory signal processing between the digital multiplex transmission line and the digital exchange is installed in the supervisory signal processing circuit of the section, and the timing generation process of the supervisory signal for each channel is controlled in a time-division manner. It is an object of the present invention to provide a signal processing system for a digital interface section that can solve such drawbacks and simplify the configuration by processing.

According to the present invention, a control device is provided in a digital interface unit that connects a digital exchange and a digital multiplex transmission line, which performs input/output processing of the monitoring signal of the digital multiplex transmission line corresponding to each channel and common control of timing generation processing in a time-division manner. and exchange 111 by the control device.
For H, the monitoring signals from the digital multiplex transmission line are time-divisionally processed as control signals and display signals for each channel, and for the transmission line side, the control signals and display signals from the exchange side are processed as channels. Correspondingly, a signal processing system for a digital switching system is obtained, which is characterized in that timing generation processing is performed on a time-divisional basis as a monitoring signal.

Examples of the present invention will be described in detail below.

FIG. 2 shows a block diagram of a one-shot embodiment in the signal processing system of the present invention. In FIG. 2, a control device 205 controls each channel of a supervisory signal receiving device 201, a supervisory signal transmitting device 202, a scanning information transmitting device 203, and a control signal receiving device 204 connected via an information transfer bus 206. Timing creation processing for each channel based on sent and received monitoring information or control information can be commonly controlled in a time-division manner by accessing the monitor signal at a different time, and the monitoring signal of the digital multiplex transmission path can be time-divisionally controlled according to the channel. Performs input/output processing.

In the following example, when the control unit ffi 205 executes input/output processing of supervisory signals, any channel of the supervisory signals corresponding to channels that have been time-division multiplexed from the digital transmission line will be assigned to the incoming system or the outgoing system. We will discuss each case.

In the case of the incoming call system, the supervisory signal that transmits the activation from the game that arrives through the supervisory signal receiving line 101 is temporarily stored in the supervisory signal receiving device 201 corresponding to the channel, and the information is transferred to the control signal from the control device 205. The information is transmitted to the control device 205 via the path 206 as activation information. The control device 205 creates scanning information regarding incoming calls to the central control device of the digital exchange based on the activation information,
The scan information is sent to the scanning information transmitting device 203 through the information transfer bus 206, and a recovery timer for monitoring the recovery of the game is set. Scanning information transmitting device 20
The scanning information regarding the incoming call sent to 3 is temporarily stored in the scanning information transmitting device 203, and is sent to the central controller via the scanning information line 207 according to the scanning signal from the central controller. Ru.

The central control device sends the scanning information to the control information receiving device 204 via the central control device. The connection confirmation information sent to the control information receiving device 204 is temporarily stored in the control information receiving device 204, and is transmitted to the control device 205 via the multi-information transfer bus 206 in response to a control signal from the control device 205. The control device 205 converts the connection confirmation information into a monitoring signal for the game, and sends it to the monitoring signal transmitting device 202 via the information transfer bus 206. The supervisory signal transmitter 202 temporarily stores the supervisory signal and sends the supervisory signal to the supervisory signal transmission line 1 in accordance with the frame format of the digital multiplex transmission line.
Send on 02.

From receiving the selection signal to responding and ending the call, the control device 2
05, the input/output processing is repeated.

On the other hand, in the case of a transmission system, the control information is sent to the control information receiving device 204 through activation by a digital exchange. Control information receiving device 2
The activation information sent to 04 is temporarily stored and transmitted to the control device 205 via the multi-information transfer bus 206 in response to a control signal from the control device 205. The control device 205 converts the activation information into a monitoring signal for the game, and sends it to the monitoring signal transmitting device 202 via the information transfer path 206. The supervisory signal transmitter 202
temporarily stores the supervisory signal and sends it to the supervisory signal transmission line 10 in accordance with the frame format of the digital multiplex transmission line.
Send to 2.

Thereafter, the input/output processing is repeated by the control device 205 until reception of the connection confirmation signal, transmission of the selection signal, response, and termination of the call.

Further, according to Funakei's signal processing method, highly flexible signal processing can be performed for various signal methods of the game without changing the configuration.

As described in detail above, according to the present invention, the supervisory signal processing between the digital multiplex transmission line and the digital exchange is input/output processed in a time-division manner for each channel, and the timing generation process for each channel is performed in a time-division manner. By configuring it so that it can be commonly controlled, efficient and flexible signal processing becomes possible.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a conventional device, and FIG. 2 is a block diagram of an embodiment of the present invention. 101...Monitoring signal receiving line, 102...
...Monitoring signal transmission line, 103°~103n...
-° Monitoring signal temporary storage device, 104... Monitoring signal concentrator, 105° to 105n... Timing generator, 106o to 106n. 207---...Scanning information helix, 107°~107
n, 208... Control information line, 201...
- Monitoring signal receiving device, 202... Monitoring signal transmitting device, 203-... Scanning information transmitting device, 20
4... Control information receiving device, 2o5...
Control device.

Claims (1)

[Claims] The digital interface unit that connects the digital exchange and the digital multiplex transmission line includes a control device that performs input/output processing of the monitoring signal of the digital multiplex transmission line corresponding to each channel and common control of the tying creation process in a time-division manner. The control device processes the monitoring signal from the digital multiplex transmission line as a control signal and a display signal in a time-division manner for each channel to the switching equipment side, and also processes the monitoring signal from the switching equipment side to the transmission line side. A signal processing method for a digital exchange, which is characterized in that control signals and display signals are time-divisionally processed as monitoring signals for each channel.