JPS62152259A - Instantaneous call route determining system - Google Patents

Abstract

PURPOSE:To easily determine an optimum route from an outgoing terminal to an incoming terminal by providing a network control center to collectively control the whole of the route of an exchanging communicating network in a network. CONSTITUTION:When a terminal 300 transmits the request signal of a communication by the digital 1 link with a terminal 310 to an exchange 200, an exchange 200 enquires the route between the terminals 300 and 310 through a signal line 500 to a network control center 100. The center 100 receives an enquiring signal by a signal control device 110 and sends it to a CPU 120. The CPU 120 determines the optimum route based upon the data in a memory 130 and sends it to the exchange 200. The exchange 200 connects one line based upon the received route information, and sends the line number and the route information to the exchange of the opponent. Successively, the division between exchanges is connected and connected to the the terminal 310 through an exchange 230.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for connecting communication from a calling terminal to a terminating terminal when an immediate call occurs in a switching communication network, in which a call is immediately established by a calling terminal. This invention relates to an instant call route determination method in which a network management center provided within the network collectively determines the required route within the communication network.

[Conventional technology]

With the advancement of exchange communication networks, digital 1
Services that connect by overlooking the entire communication network, such as services that connect with links, services that connect multiple terminals to one another, and services that compress and transmit image information using network equipment. has been increasing. The call route determination method in the conventional switched communication network is based on a method in which each exchange determines the next exchange based on the destination terminal number. This method has the drawback that each exchange does not manage the routes of the entire communication network, so it is not possible to select routes efficiently, and it is not possible to select routes with long distances or to select empty routes. Ta.

[Problem that the invention seeks to solve]

Therefore, the present invention aims to solve the problem of making it possible to effectively determine the optimal route from a calling terminal to a terminating terminal in a switched communication network.

It is therefore an object of the present invention to provide an instant call routing scheme which makes the above possible.

[Means and operations for solving the problem] In order to achieve the above object, the present invention provides a network management center within the network that centrally manages the entire route of the switched communication network, and handles all calls from terminals. When this happens, the exchange inquires about the route to the network management center, and the network management center determines the route, which is the most important feature of the present invention.

This differs from the conventional technology in that a network management center is provided within the network to manage the entire route.

〔Example〕

The present invention will now be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing a first embodiment of the present invention. In the figure, the network management center 100 has a signal control vA
500, 510, 520, 530, exchange 20
0,210,220,230, terminals 300 and 310 are connected to exchanges 200 and 230, respectively, by information and signal lines 400.410, and each exchange is connected to each other by information and signal lines 410, 420, 430, and 440. is tied to

FIG. 2 is a block diagram showing the configuration of the network management center 100 in FIG. 1. The network management center 00 includes a signal control device 110 that controls the transmission and reception of signals with each exchange, a memory 130 in which information about the entire switching communication network is stored, and a memory 130 that interprets received signals and controls the memory 130. The CPU 120 uses the CPU 120 to determine the route.

FIG. 3 is an explanatory diagram showing part of the route information in the memory 130 in FIG. 2, and shows the next exchange number of each exchange and the type of information line.

An example of instant call connection control will be described below with reference to FIGS. 1 to 3. When the terminal 300 transmits a request signal for communication by digital 1 link with the terminal 310 to the exchange 200 via the information/signal line 400, the exchange 20
0 inquires of the network management center 100 via the signal line 500 about the route between the terminals 300 and 310. In the network management center 100 , the signal control device 110 receives the inquiry signal from the exchange 200 and sends it to the CPUI 20 .

CPUI 20 determines the route based on data in memory 130.

Digital 1 between terminal 300 and terminal 310 in FIG.
According to the memory information shown in FIG. 3, the link route is a route that passes through the information/signal line group 420, passes through the exchange 220, passes through the information/signal line group 430, and reaches the exchange 230. Since it can be easily determined by , it is sent back to the exchange 200 via the signal control device 110 .

Based on the route information, the exchange 200 acquires one line from the information/signal line group 420, connects the acquired line to the terminal 300, and transmits the route information, the acquired line number, and the destination terminal number to the exchange 220. Send. Based on the received route information, the exchange 220 acquires one line from the information/signal line group 430, connects the line with the line number sent from the exchange 200 to the acquired line, and also connects the acquired line to the exchange 230. The number and destination terminal number are transmitted to exchange 230. The exchange 230 is the terminal 310
When the call arrives at the terminal 310, the call is sent to the exchange 220.
A call is established by connecting the line number sent from the terminal 310 to the terminal 310.

FIG. 4 is a block diagram showing a second embodiment of the present invention. In the figure, the network management center 100 has a signal control line 5
50,560,570 through exchange 250,260
, 270, and the terminals 350, 360, 370 are connected to the exchange 25 via information/signal lines 800, 810, 820.
0,260,270, and each exchange is connected by an information/signal line group 470°480, and is further connected to a multi-point connection device 6.
00°610.620 is information line group 700, 710, 72
0 to exchanges 250, 260, and 270.

FIG. 5 is an explanatory diagram showing a part of the route information stored in the memory 130 in the network management center 100 in FIG. 4, and shows the next exchange number and the distance between the exchanges.

An example of real-time multi-point listening connection control will be shown below with reference to FIGS. 4 and 5.

When the terminal 350 transmits a request signal for multipoint communication between the terminals 360 and 370 to the exchange 250 via the information/signal line, the exchange 250 transmits the request signal for multipoint communication between the terminals 360 and 370 via the signal line 550. The network management center 100 is inquired about the route and available point-to-point connection devices to be used in the multi-point communication. Network management center 100
From the route information shown in FIG. 5, determines the available point-to-point connection device and route that minimizes the required distance between exchanges.

In the case of FIG. 4, if the connection device 610 is used,
As shown in Figure 6(a), the required distance between the exchanges is
It becomes 0(+y)km, which is the minimum.

When the point-to-point connection device 600 is used, the required distance between the exchanges is (2x+y) km as shown in FIG. 6(b).
becomes.

The network management center 100 sends back route information including the determined point-to-point connection device number to the exchange 250.
0 captures one line from the information/signal group 470 based on the route information, connects the captured line to the terminal 350, and sends the route information, two destination terminal numbers, and the captured line to the exchange 260. Send number. exchange machine 260
receives a call to the terminal 360, learns from the received route information that the point-to-point connection device 610 is to be used, and connects the line with the received line number and the responding terminal 360 to the point-to-point connection device 610. Furthermore, information/signal group 4
80, connects the captured line to the point-to-point connection device 610, and transmits the destination terminal number and the captured line number to the exchange 270. Exchange 270 is terminal 3
70 receives a call, and in response to a response from terminal 370, exchange 2
A call is established by connecting the line number sent from 60 to terminal 370.

〔Effect of the invention〕

As explained above, according to the method of the present invention, by collectively managing route information of communication networks, routes can be determined easily and efficiently, thereby reducing communication costs and improving serviceability. It has the advantage of being able to

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a block diagram showing an example of the configuration of the network management center 100 in FIG. 1, and FIG. 3 is a block diagram showing a configuration example of the network management center 100 in FIG. 2. FIG. 4 is a block diagram showing another embodiment of the present invention. FIG. 5 is a part of the route information stored in the memory 130 in the network management center 100 in FIG. 4. FIG. 6 is an explanatory diagram showing an example of a connection route between multiple points that can be taken in FIG. 4. Explanation of codes 100...Network management center, 200, 210, 220
, 230, 250° 260, 270...exchange machine, 30
0,310,350,360,370...Terminal, 60
0.610,620... Multipoint connection device agent Patent attorney Akio Namiki Agent Patent attorney Kiyota Matsuzaki 1 Figure 2 Figure 31ilj1 4 Figure 5 Figure i2fa Prisoner

Claims (1)

[Scope of Claims] 1) In a switched communication network in which terminals are connected via exchanges, a network management center connected to the exchanges is provided, and an immediate call is established when a call is made from a calling terminal. When a call occurs, the originating exchange that receives the calling signal inquires of the network management center about the communication network route to the destination terminal, and the network management center uses the communication network route stored in its memory. After determining the route by referring to information and network equipment information, the determined route information is sent back to the originating exchange, and the originating exchange starts line acquisition and connection operations according to the route information. Instant call route determination method.