JPH088606B2 - Satellite line relay switching control system - Google Patents

Description

TECHNICAL FIELD The present invention relates to a satellite circuit relay switching control system that adopts a satellite demand assign control system that allocates a satellite circuit as a trunk line for each call.

[Prior Art] A satellite earth station, a satellite line control station, and a gate station as an existing exchange having an interface to the satellite earth station are included, and the satellite earth stations are connected to each other by an instruction from the satellite line control station. The satellite line control station sets up / releases the satellite line between the two, and the satellite line control station has a signal transmission / reception function with the gate station, a satellite line management function, and a satellite earth station control function. In the satellite line relay exchange system that enables relay exchange of satellite lines to the earth station, satellite line, landing satellite earth station, and landing side gate station, trunk connection test, call test, meeting test between both departure and arrival gate stations When attempting to go, the satellite line control station has conventionally decided the destination line without permission, so it is not always possible for the originating gate station to reach the designated line of the destination gate station. I couldn't test.

Therefore, in the past, as a method of conducting the test, the maintenance person of the gate station on the originating side could contact the maintenance person of the gate station on the receiving side by telephone or the like.
A complicated method is used in which a request is made to block the line from the earth station other than the line to be received, and when the block is completed, the call is made from the testing device of the calling gate station and the line is received at the desired line. However, there is a drawback that the operation is troublesome for the maintenance person. In addition, there is a drawback that a normal call unrelated to the test may jump in during the test and interfere with the test.

[Problems to be solved by the invention]

Therefore, in the present invention, in the satellite line relay switching system, the output line of the originating gate station and the input line of the destination gate station are not connected by group designation but by individual line designation. The problem to be solved is to enable the trunk connection test, the call test, and the encounter test on the incoming line side.

[Means for solving problems]

In order to solve the above problems, the present invention provides a means for preregistering line identification information between the originating and terminating gate stations to be connected to the satellite line control station in the satellite line relay switching control system.

[Action]

When the satellite line control station receives a call setting request signal including line identification information from the calling gate station, the satellite line control station corresponds to the line identification information registered in advance. If you recognize that
Accordingly, the line connection between the originating and terminating gate stations is instructed so that the call arrives at a specific incoming line. Also, a call originating from a station other than a predetermined specific gate station is not connected to the incoming line.

〔Example〕

FIG. 1 is a block diagram showing a satellite circuit relay exchange control system as an embodiment of the present invention.

In the figure, 1 and 2 are gate stations as existing exchanges that have an interface with the satellite earth station, and 3 and 4 are satellite earth stations (satellite line connection / disconnection functions according to instructions from the satellite line control station). 5 is a communication satellite (having a function of relaying a communication line between satellite earth stations and relaying and transferring an instruction signal between the satellite earth station and a satellite line control station), and 6 is a satellite line control station ( Holds the function of sending and receiving call control signals to and from the gate station via the common line signal network, the function of instructing the connection and disconnection of the satellite line between the satellite earth stations, and the line identification information for connection between the departure and arrival Function, and function to hold line information of gate station), 7 is a satellite communication line for communication between satellite earth stations, 8 is transfer control signal between satellite line control station and satellite earth station A satellite control line used for communication, 9 is a common line signal network (gate station and Control information between the star line control station, transmitting and receiving maintenance information), it is.

FIG. 2 is a block diagram showing a configuration example of the satellite line control station 6 in FIG.

In FIG. 2, reference numeral 10 is a satellite earth station control unit for issuing instructions to the satellite earth station to control the satellite line, and 11 is a common line signal for transmitting / receiving a signal to / from a gate station via a common line signal network. A processing unit, 12 is a control unit that controls each unit, 13 is an input / output control unit that is connected to an input / output device such as a typewriter and a keyboard, 14 is gate station data (gate station line information, gate station and satellite earth station Data such as correspondence), 15 is test registration data (data regarding incoming and outgoing lines to be connected),
Is.

FIG. 3 is a flow chart showing a connection procedure in one embodiment of the present invention.

A connection procedure as an operation will be described below with reference to FIGS. 1, 2, and 3. The maintenance person of the gate station 1 calls the maintenance person of the satellite line connection station 6 by telephone or the like with the line identification information of the calling side and the line identification information of the called side to be connected,
The maintenance person of the satellite line connection station 6 inputs the information as a command from a keyboard or the like.

The input / output control unit 13 of the satellite line control station 6 receives the information (command) input from the keyboard or the like as test data, and the control unit 12 determines the consistency of the test data based on the gate station data 14. If it is correct after checking, it will be registered in the test registration data 15.

When the registration is completed, the maintenance person of the gate station 1 makes a call from the registration line on the calling side from the test device or the like. Satellite line control station 6
From the gate station 1 via the common line signal network 9 to the gate station 1
The common line signal control unit 11 receives the address signal including the line identification information of the terminal and the terminal number of the called side, and checks whether the line identification information is the data registered in the test registration data 15 to perform registration. If not, the terminal number of the called side is translated and the earth station and gate station of the called side are sought, and a vacant line to the gate station is hunted except for the line registered in the test registration data 15 and normal Perform call processing.

If it is registered, the satellite earth stations 3 and 4 corresponding to the registered departure and arrival lines are obtained from the gate station data 14, and the satellite earth station control unit 10 transmits the satellite earth stations 3 and 4 via the satellite control line 7.
4 is instructed to connect the satellite communication line 7, and when the connection completion is returned from the satellite earth stations 3 and 4, the address signal containing the line identification information of the receiving side stored in the test registration data 15 is sent. The signal is transferred from the common line signal processing unit 11 to the gate station 2 via the common line signal network 9.

The gate station 2 translates the terminal number of the receiving side included in the address signal and receives the call at the test device, the test telephone, or the like.
When the connection is completed, the maintainer of the gate station 1 and the maintainer of the gate station 2 carry out a trunk connection test, a call test, and an encounter test of a specific line from the gate station 1 to the gate station 2.

After the test is completed, the maintenance personnel of the gate station 1 disconnects the call, so that the disconnection signal is received by the common line signal processing section 11 of the satellite line control station 6. Then, the control unit 12 instructs the satellite earth station control unit 10 to disconnect the satellite communication line 7 between the corresponding satellite earth stations 3 and 4 via the satellite control line 8, and when the disconnection is completed, the gate station 1 is instructed. The release completion is returned and the disconnection of the line between the gate station 2 and the earth station 4 is notified to the gate station 2.

Further, if the line identification information to be connected between the gate station 1 and the satellite line control station 6 is transferred in advance as a maintenance signal via the common line signal network 9, the maintenance of the gate station 1 controls the satellite line. It is not necessary to call the maintenance person of the station 6 by telephone or input the command of the maintenance person of the satellite line control station 6, and the trunk can be easily made by the originating gate station 1 by itself or only between the originating gate station 1 and the destination gate station 2. A connection test, a call test, and a meeting test can be conducted.

〔The invention's effect〕

As described above, according to the present invention, since the departure / arrival line information is registered in the satellite line control station as test registration data in advance, the departure / arrival gate is also used in the satellite line relay switching control system which adopts the satellite demand assign control system. Correspondence between stations can be performed in the same manner as in the case of the test of the ground line and the pre-assigned line, and there is an advantage that the trunk connection test, the call test, and the encounter test can be easily performed. Further, there is an advantage that the test can be carried out without blocking the line where the test is not carried out.

[Brief description of drawings]

FIG. 1 is a block diagram showing a satellite line relay switching control system as an embodiment of the present invention, FIG. 2 is a block diagram showing a configuration example of the satellite line control station 6 in FIG. 1, and FIG. 3 is a flowchart showing a connection procedure in one embodiment. Explanation of code 1,2 …… Gate station, 3,4 …… Satellite earth station, 5 …… Communication satellite, 6 …… Satellite line control station, 7 …… Satellite communication line, 8 ...
... Satellite control line, 9 ... Common line signal network, 10 ... Satellite earth station control unit, 11 ... Common line signal processing unit, 12 ... Control unit, 13
...... Input / output control unit, 14 …… Gate station data, 15 …… Test registration data

Claims (2)

[Claims] 1. A satellite earth station, a satellite line control station, and a gate station as an existing exchange having an interface for the satellite earth station, wherein the satellite earth stations are connected to each other by instructions from the satellite line control station. The satellite line control station sets up / releases the satellite line between
By having a satellite line management function and a satellite earth station control function, the originating gate station, the originating satellite earth station, the satellite line,
In a satellite circuit relay exchange control system capable of relaying and exchanging a satellite circuit to a destination satellite earth station and a destination gate station, the satellite circuit control station is provided with circuit identification information between the originating and destination gate stations to be connected in advance. When the call setting request signal including the line identification information is received from the calling gate station after being registered, the satellite line control station has the received line identification information corresponding to the previously registered line identification information. When it recognizes that, the satellite circuit relay switching control method is characterized by instructing the circuit connection between the originating and terminating gate stations so as to receive on a specific incoming line accordingly. 2. A satellite line relay switching control system according to claim 1, wherein a predetermined line is specified for an incoming line included in the line identification information registered in advance in the satellite line control station. The satellite circuit relay switching control method is characterized in that calls originating from stations other than the gate station are not connected.