KR100258684B1 - Method for managing information of v5.2 interface in electronic exchanger - Google Patents

Abstract

PURPOSE: A method for managing V5.2 interface status information in a full electronic switching exchange is provided to manage V5.2 status information independently and efficiently by installing a special device to manage status information for V5.2 links and subscribers in a full electronic exchange system. CONSTITUTION: A call control part(10) executes overall call control for PSTN or ISDN subscribers. A call control message processing part(11) provides a suitable communication path between a V5.2 interface part(12) and the call control part(10). The V5.2 interface part(12) executes the V5.2 interface between a remote subscriber part and a full electronic exchange system using a V5.2 interface protocol. A V5.2 status management part(14) manages status information for V5.2 links and subscribers. A system control part(15) executes the overall control of the full electronic exchange system. A V5.2 interface part(20) in the remote subscriber part is provided to interface with the V5.2 interface part(12) using the V5.2 interface protocol. A remote subscriber interface part(21) interfaces the PSTN or ISDN subscribers connected directly by physical lines.

Description

How to manage V5.2 interface status information in electronic exchange

The present invention relates to an electronic switchboard, and in particular, by providing a separate device for managing the status information for the V5.2 link and the subscriber inside the electronic switchboard that accommodates the V5.2 interface in comparison with the general status information V5. 2 V5.2 Interface status information management method in electronic switch which enables independent and efficient management of status information.

Currently, electronic exchanges are used for local and local / tandom applications. Ultimately, electronic exchanges have been developed to develop into flexible exchanges in various networks such as integrated information and communication networks (ISDN) and intelligent networks. .

And, as is well known in the art, the V5.2 interface is the signaling protocol between the access network (AN) and the exchange recommended in European Telecommunication Standards (ETS) 300 and 347-1. . Here, the access network is a communication network capable of accepting analog and digital subscribers and communicating with an exchange for a V5.2 interface, and the exchange is an exchange capable of accepting subscribers by interfacing with an access network through a V5.2 interface.

On the other hand, the service of the public switched network (PSTN) or ISDN (Intergrated Service Digital Network) subscriber using the conventional electronic switchboard was only available to the subscribers who are directly connected by physical circuits to a predetermined subscriber interface device inside the switchboard.

In addition, in order to accommodate subscribers remote from the electronic switchgear, the call processing was performed by placing a sub-system equipped with both the existing electronic switchgear and software or hardware resources at a long distance. Accordingly, this sub-system has a disadvantage in that the price is high because it must have all the hardware or software resources of the existing electronic switchboard. In addition, this sub-system cannot handle processing of subscriber information, and is actually controlled by an electronic switch.

Therefore, recently, as mentioned above, it does not have the hardware or software resources of the electronic switchboard, and has an access network that transmits analog line status information to the electronic switchboard on the V5.2 interface without controlling direct call processing. This not only reduces system cost but also facilitates overall call control of all electronic switchboards.

However, due to the nature of the V5.2 interface, it is very inefficient to manage the status information of V5.2 links and subscribers using this protocol using the same device as the existing general link and subscriber status information.

Accordingly, the present invention was created in view of the above circumstances, and has a general state information by providing a separate device for managing the state information for the V5.2 link and the subscriber inside the electronic switchboard accommodating the V5.2 interface. In contrast, the aim is to provide a V5.2 interface status information management method in an electronic switch that enables independent and efficient management of V5.2 status information.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a functional block diagram for explaining in hardware the method of managing V5.2 interface state information in an electronic switch according to an embodiment of the present invention.

FIG. 2 is a flowchart illustrating a method of managing status information when generating new V5.2 interface status information internally in the device of FIG. 1; FIG.

3 is a flowchart illustrating a method of managing status information when an inquiry or change request of V5.2 interface status information is requested by an external operator in the device of FIG. 1;

* Brief description of the main parts of the drawing

10: call control unit

11: call control message processor 12: V5.2 interface unit

13: V5.2 interface control unit 14: V5.2 state management unit

15: system control unit

20: V5.2 interface unit 21: remote subscriber matching unit

V5.2 interface state information management method in the electronic switch according to the first aspect of the present invention for realizing the above object is V5.2 interface status information including a subscriber matching device, a V5.2 interface, and an electronic switch A management method comprising the steps of: receiving an inquiry or change request signal of V5.2 interface link status information or subscriber status information generated by an operator; determining the validity of the inquiry or change request signal; Outputting a predetermined error message to the operator if the request signal is not valid; and if the inquiry or change request signal is valid, existing link status information or subscriber status information and received link status information or subscriber status information, respectively, Comparing step, the result of the comparison, if they match each other, received link state information or subscriber The step of ignoring the information and be a result of the comparison, characterized in that when each configured to no longer match each other, comprising: updating the status information area as the received link status information and the subscriber status.

In addition, the V5.2 interface state information management method in an electronic switch according to the second aspect of the present invention is a V5.2 interface state information management method comprising a subscriber matching device, a V5.2 interface, and an electronic switch. Receiving the subscriber status data or link status data; determining whether the received subscriber status data or link status data is valid data; and receiving the received subscriber status data or link status data when the received subscriber status data or link status data is valid data. Comparing whether the state data and the existing subscriber state data and link state data held in the database are matched with each other; and when the state data to be compared with each other is matched, a predetermined result signal corresponding to the call control unit and Outputting to the V5.2 interface control unit, and each image being compared with each other; And if the status data do not match, updating and registering the corresponding subscriber status memory area or link status memory area as each received status data.

Therefore, according to the above, it is possible to manage the state information for one or a plurality of V5.2 interface existing in one electronic switch by using a separate state management device can be managed very efficiently.

Next, an embodiment according to the present invention will be described.

FIG. 1 is a functional block diagram for explaining in hardware the method of managing V5.2 interface state information in an electronic switch according to an embodiment of the present invention.

In the drawing, reference numeral 10 denotes a call controller for performing overall call control for a public switched network or ISDN subscriber that is interfaced with V5.2, and 11 denotes a V5.2 interface 12 and the call controller 10, which will be described later. As a call control message processing unit for providing a proper communication path between the call control unit, the call control message processing unit 11, in particular, the call control unit determines the suitability of the predetermined call control message input from the V5.2 interface unit 12; And transmits a control message to the V5.2 interface unit 12 according to the allocation or termination of system resources input from the call control unit 10.

In addition, reference numeral 12 is a V5.2 interface unit that enables the V5.2 interface of the remote subscriber unit and the electronic switch, which will be described later using the V5.2 interface protocol, and 13 controls the V5.2 interface. It is a V5.2 interface control unit.

In addition, reference numeral 14 is a V5.2 status management unit for managing the status information for the V5.2 link or subscriber, 15 is a system control unit for performing the overall control of the electronic switching system.

Reference numeral 20 is a V5.2 interface unit of a remote subscriber unit for interfacing the V5.2 interface unit 12 with a V5.2 interface protocol, and 21 is a public switched network or ISDN subscriber connected directly to a physical circuit. As a remote subscriber matching unit for matching the data, the remote subscriber matching unit 21 receives a signal corresponding to a predetermined signal (for example, an off-hook signal) in response to a change in the subscriber state from the subscriber. The subscriber's state is adjusted based on a control message for the subscriber's state output to the interface unit 20 or input through the V5.2 interface unit 20. Here, the remote subscriber matching unit 21 may simultaneously control access to an analog subscriber, a basic rate interface (BRI), a primary rate interface (PRI), an analog relay line, a digital relay line, and a remote switching device.

Next, the operation of the device having the above configuration will be described in more detail. First, a description will be given of the management operation when generating new state data for the V5.2 interface link state and subscriber state with reference to the operation flow diagram of FIG.

The remote subscriber matching unit 21, when the subscriber is off-hook or on-hook to recognize a state change for the public switched network or ISDN subscriber, the predetermined call control message corresponding thereto It is transmitted to the V5.2 interface 20 of the remote subscriber. The V5.2 interface unit 20 transmits the call control message to the V5.2 interface unit 12 on the switchboard side through a specific communication channel of the E1 trunk using the V5.2 interface protocol. Send a control message.

The V5.2 interface unit 12 on the switchboard side transmits the call control message received from the remote subscriber unit to the call control message processing unit 11 via the E1 trunk. The call control message processing unit 11 determines the validity of the received call control message.

At this time, if the call control message is a valid message, the call control message is transmitted to the call controller 10. The call control unit 10 outputs a predetermined call control message to the call control message processing unit 11 according to available resource allocation or used resource release based on the call control message received from the call control message processing unit 11. . The call control message processing unit 11 transmits the call control message to the V5.2 interface unit 12 according to the allocation or termination of system resources received from the call control unit 10.

The V5.2 interface unit 12 transmits to the remote subscriber side through the E1 trunk. When the V5.2 interface unit 20 of the remote subscriber side receives the call control message through the E1 trunk, the V5.2 interface unit 20 outputs the call control message to the remote subscriber matching unit 21, and the remote subscriber matching unit 21 receives the received call control. The control operation for the subscriber is performed based on the message. On the other hand, the call control message processing unit 11 outputs a predetermined call impossible message to the V5.2 interface unit 12 when the received call control message is not a valid message. The V5.2 interface unit 12 outputs a predetermined call disabling message to the remote subscriber side, and performs a series of call disabling control on the subscriber at the remote subscriber side.

Meanwhile, in the normal state, the call control unit 10 transmits the subscriber state data to the V5.2 state management unit 14 when the subscriber state data is received from the call control message processing unit 11, and the V5.2 interface control unit 13 transmits V5. .2 When link state data is received from the interface unit 12, it is transmitted to the V5.2 state management unit 14 (steps ST1 and ST2). When the V5.2 state management unit 14 receives the subscriber state data and the link state data from the call control unit 10 and the V5.2 interface control unit 13, respectively, the V5.2 state management unit 14 first determines whether each state data is valid data. (ST3 step).

Subsequently, if each state data is not valid data, the V5.2 state management unit 14 outputs a predetermined error message to the call control unit 10 and the V5.2 interface control unit 14 (step ST4).

On the other hand, the V5.2 state management unit 14 holds each state data received from the call control unit 10 and the V5.2 interface control unit 13 in the received state data and the database when the state data has a valid data format. The subscriber state data and the link state data of the corresponding subscriber are compared with each other (step ST5, ST6).

At this time, the V5.2 state management unit 14 outputs a predetermined result signal to the call control unit 10 and the V5.2 interface control unit 13 when the respective state data to be compared are matched (step ST7). ). On the other hand, when each of the two state data to be compared does not match, the V5.2 state management unit 14 updates and registers the state memory area and the link state memory area of the subscriber as the received state data, respectively (step ST8). ).

Next, with reference to the operation flow diagram of Figure 3 will be described the operation of the V5.2 interface link status and the subscriber request or change request from the external operator.

When the system control unit 15 receives an inquiry or change request signal for the V5.2 interface link state and subscriber state from the operator (step ST11), the system control unit 15 receives the received V5.2 interface link state and subscriber. The inquiry or change request signal for the status is transmitted to the V5.2 interface controller 13 (step ST12).

Subsequently, the V5.2 interface control unit 13 transmits a corresponding inquiry or change request signal to the V5.2 state manager 15 according to a predetermined inquiry or change request signal received from the system controller 15. (ST13 step).

V5.2 The state management unit 15 reads out the corresponding link state information and subscriber state information stored in the database based on the inquiry or change request signal of the state data and compares them with the received link state information and subscriber state information, respectively. Then, it is determined whether or not the state data compared with each other match (step ST14).

After the comparison of the respective state data, the V5.2 state management unit 15 outputs a predetermined result signal to the V5.2 interface control unit 13 as to whether or not the compared state data is identical. Then, the V5.2 interface controller 13 outputs the resultant signal to the system controller 15 (step ST15).

On the other hand, if the two state data do not match in the state data comparison step of step ST14, the existing state data memory area is updated and registered with the received state data (step ST16).

That is, according to the above, it is possible to manage the state information for one or more V5.2 interface existing in one electronic switchboard by using a separate state management device can be managed very efficiently.

In addition, this invention is not limited to the said Example, It can variously deform and implement within the range which does not deviate from the technical summary.

As described above, according to the present invention, the V5.2 status is compared with the general status information by providing a separate device for managing the status information for the V5.2 link and the subscriber inside the electronic switchboard accommodating the V5.2 interface. The V5.2 interface status information management device can be realized in an electronic switch that enables independent and efficient management of information.

Claims (2)

In the V5.2 interface state information management method comprising a subscriber matching device, a V5.2 interface, and an electronic switch, Receiving an inquiry or change request signal of V5.2 interface link status information or subscriber status information generated by an operator; Determining the validity of the inquiry or change request signal; Outputting a predetermined error message to an operator if the inquiry or change request signal is invalid; Comparing the existing link status information or subscriber status information with the received link status information or subscriber status information when the inquiry or change request signal is valid; Ignoring the received link status information or subscriber status information when the comparison results are identical to each other; And comparing the status information area with the received link status information and subscriber status information when the comparison results do not coincide with each other. In the V5.2 interface state information management method comprising a subscriber matching device, a V5.2 interface, and an electronic switch, Receiving subscriber status data or link status data; Determining whether the received subscriber state data or link state data is valid data; If the received subscriber state data or link state data is valid data, comparing whether the received state data and existing subscriber state data and link state data held in the database match each other; Outputting a predetermined result signal to the call controller and the V5.2 interface controller, respectively, when the state data compared with each other match; If each state data compared with each other does not match, the V5.2 interface in the electronic switchgear comprising the step of updating and registering the corresponding subscriber state memory area or link state memory area with each received state data. How to manage status information.

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