JPS62104298A - Load decentralizing system in telephone exchange system - Google Patents

Abstract

PURPOSE:To limit the change and addition of the operation attended with the addition of the service only to the processing procedure of a terminal state managing section by separating a telephone terminal equipment and a connection line, providing the terminal state managing section and a line state managing section and connecting the managing sections by a message. CONSTITUTION:The line state managing section 21 applies the line state management connecting a terminal equipment as a system common resource and the terminal state management section 22 divides user terminal equipments into plural terminal groups to apply the state management with decentralized load. The message 23 couples the management sections 21, 22 to transmit the information and the control information 24 is transmission/reception information between the terminal equipment and the management section 22. The management sections 21, 22 have a control operation system as a core. Further, plural terminal connection sections 36 are connected to a terminal control section 32 via a time division control section 37, the state information of a telephone terminal equipment 35 is transmitted to a terminal state management section 321 and the control information to the equipment 35 is transmitted from the section 321.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a load distribution method in a telephone switching system.

[Conventional technology]

A conventional load distribution system in this type of telephone switching system has a configuration in which common resources within the telephone switching system are divided to distribute and manage the load.

For example, switching terminal equipment is combined with a communication line to which this terminal equipment is connected, and becomes a common resource called the terminal line. The control unit equipped with software to manage this terminal port is '4! It was prepared for each group of terminal lines, and the load on all terminal lines was distributed among the groups.

A conventional example will be explained with reference to FIG. In the figure, the °C1 terminal line management unit 92 divides the terminal line, which is a common resource, into multiple groups for load distribution, and the data link 9
3 to connect to the switch control section 94. A time division control unit 95 directly connected to each of the terminal line management units 92 connects to a plurality of terminal connection units 96 to control time allocation for information exchange, and also connects to a plurality of telephone terminals connected to the terminal connection unit 96. Information and signals exchanged with the device 97 are connected to the management section 92 . This management unit 92 grasps and manages the status of the terminal equipment 97 and the status of the connected line, and
The execution of processing is controlled according to the state.

An example of a calling operation procedure will be described with reference to FIG. 5. When the terminal device 97 is off-hook for making a call, the management section 92 receives an off-footer signal via the terminal connection section 96 under the control of the time division control section 95 (state 101) L, and the corresponding telephone The state of the terminal device 97 is changed from on-hook to off-hook and registered. Next, the management unit 92 controls the corresponding b-terminal device 97 to capture the line to be connected (state 102) L, and the switch control unit 9
A dial tone connection request is made to 4. Notification of the outgoing call is made to 1O5, and registration is set in the dial tone reception state (state 103).
do. The switch control unit 94 receives the dial tone connection request 105, executes the dial tone connection (state 104), and sends the dial tone to the terminal line, completing the calling operation procedure and continuing with the next dial operation procedure. .

[Problem that the invention seeks to solve]

The conventional load balancing method described above divides a common resource called a terminal line to distribute the load, so the processing procedure for performing the functions of the common resource includes operating procedures that are subject to many changes, and the software that executes these procedures is required. is included in a wide variety of modules, and there is a problem in that a large number of replacements and changes are required each time the operating procedure changes.

[Means for solving problems]

The load distribution method in the telephone switching system of the present invention includes: a telephone terminal device; a terminal connection section connected to the telephone terminal device; a time division control section connected to the terminal connection section and performing time division control; a terminal control unit that is connected to the control unit and has a terminal status management unit that manages the status of the telephone terminal equipment; and a message exchange unit that exchanges messages; connected to the terminal control unit via a data link as a system common resource; The present invention is characterized by comprising: a line state management section that manages the state of the line; and a system control section that has a message exchange section that exchanges messages with the message exchange section of the terminal control section.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

Referring to FIG. 2, the line status management unit 21 manages the status of lines connecting terminals as a system common resource.
Further, the terminal state management unit 22 divides the user terminals into a plurality of terminal groups and performs state management with load distribution. message 23
connects the management section 21 and the management section 22 and transmits information. The control information 24 is information exchanged between a terminal (not shown) and the management section 22. Each of these management units 21 and 22 has a control operating system (
(not shown) as a core.

In FIG. 1, a system control section 31 includes a line status management section 311 and a message exchange section 312 that sends and receives the messages, and a terminal control section that includes a terminal status management section 321 and a message exchange section 322 that sends and receives the messages. 32 is connected by a data link 33 for transmitting the above-mentioned messages. This data link 33 has
A switch control section 34 having a control section 341 and a message exchange section 342 that mainly control a main switch (not shown) is also coupled. Up to a plurality of telephone terminal devices 35 are connected to one terminal connection section 36. Further, a plurality of terminal connection units 36 are connected to the terminal control unit 32 via one time division control unit 37, and a telephone terminal device 35 is connected to the terminal control unit 32 via one time division control unit 37.
The terminal state management section 321 transfers state information f to the terminal state management section 321 and control information for the telephone terminal device 35 .

In the system control unit 31, for example, two microprocessors are provided, and one of them is equipped with the management unit 311.
and the message exchange section 3120 functions, and the other may control the message exchange.

Next, an example of a calling operation will be described with reference to FIG. 1 and FIG. 3. First, the management unit 311 sets and manages the line in an idle state (state 111), and the management unit 321 sets and manages the terminal device 35 in an on-hook state (state 112).

When the operator makes a call from this terminal device 35, the management section 321 detects this and sets the on footer state (state 112).
) to the off-hook state (state 113) for management, information from the 1-line acquisition request message 118 is transferred to the line state management section 311 via the message exchange sections 322 and 312. This message 1
The management unit 311 that has received the information from line acquisition success message =119 switches the idle state (state 111) to the acquisition state (state 114) and manages it, and also sends the information regarding the line acquisition success message =119 via the message exchange units 312 and 322. The information is transferred to the management section 321. This message 1
19, the management unit 321tf indicates that the line is connected (state 115), and then indicates that the dial tone has been received (state 1).
16) are set and managed respectively. On the other hand, the line state management section 311 transfers information from the dial tone connection request message 120 to the control section 341 of the switch control section 34 via the message exchange sections 312 and 342 when switching to the capture state (state 114). The control section 341, which has received the information from the message 120, executes a dial tone connection (state 117) process. The calling procedure is the same as before, and then the normal calling procedure in which the operator listens to the dial tone and operates the dial.

In the above embodiment, the management section 321 is the control section 3
Although it has been explained that the dial tone reception state is set without exchanging messages with the data entry control unit 34, the management unit 321 exchanges messages with the erasure control unit 34, and this management unit 321
The processing means may be divided.

Further, as another embodiment of the present invention, the control section 341 of the switch control section 34 is included in the control section 31 of the front a-bi system.
is provided so that the system control section 31 also controls a main switch (not shown), and the message exchange section 31
2, the management section 311 and the control section 341 may exchange information through the message.

[Effect of Nine Lights]

As explained above, the present invention does not divide a group of single-language terminal equipment, but separates the telephone terminal equipment and the line that connects it, and manages the line as a common terminal with the terminal status management unit. By providing a line status management department and connecting these management departments through messages, changes and additions to operations associated with the addition of warehouse services are limited to the processing procedures of the terminal status management department. The effect is that only a small amount of change or replacement is required.

[Brief explanation of drawings]

Fig. 1 is a block diagram of an embodiment of the present invention, Fig. 2 is a diagram showing the concept of the invention, Fig. 3 is a flowchart showing an example of the calling operation in Fig. 1, and Fig. 4 is a diagram showing the conventional load FIG. 5 is a block diagram showing an example of a distributed system, and a flowchart showing an example of the calling operation in FIG. 4. 21...Line (system common resource) state management unit, 22...Terminal (user terminal) state management unit, 2
3...Message, 24...Control information, 31...System control unit, 311...
・Line status management unit, 312...Message exchange unit, 32...Terminal control unit, 321...
Terminal status management unit, 322...Message exchange unit, 33...Data link, 34...Switch control unit, 341...Control unit, 342...
...Message exchange section, 35...Telephone terminal equipment, 36...Terminal connection section, 37...
Time division control unit. Agent Patent Attorney Shintaku Uchihara 1 Pf1Z12] Leopard 3 Revised Illustration 4

Claims (1)

[Scope of Claims] A telephone terminal device; a terminal connection section connected to the telephone terminal device; a time division control section connected to the terminal connection section and performing time division control; a terminal control unit having a terminal status management unit that manages the status of the telephone terminal equipment and a message exchange unit that exchanges messages; connected to the terminal control unit via a data link and manages the status of the line as a system common resource; A system control section having a message exchange section for exchanging messages with a line state management section and a message exchange section of the terminal control section.