KR100267067B1 - Electronic exchanger capable of expropriating of v5.2 interface link using an internal bus - Google Patents

Abstract

PURPOSE: A device for accommodating a V5.2 link by using an inner bus in a full electronic exchange is provided to combine an E1 link for a V5.2 interface by using the inner bus. CONSTITUTION: Link interfaces(501-50n) interface a link combined with a V5.2 subscriber unit. A V5.2 bus unit(40) supplies a communication path of I/O(Input/Output) messages of the link interfaces(501-50n). A V5.2 controller performs a serial of controls for a V5.2 subscriber. A V5.2 bus controller(30) designates a specific transmission link and a transmission channel for a message received from the V5.2 controller, and outputs the transmission link and the transmission channel to the V5.2 bus unit(40).

Description

V5.2 link receiving device using internal bus in electronic switchboard

TECHNICAL FIELD The present invention relates to an all-electronic exchange, and more particularly to an all-electronic exchange that accommodates a V5.2 interface, by combining one or more E1 links for a V5.2 interface using an internal bus to a particular channel of a particular E1 link. .2 a V5.2 link receiver using an internal bus in an electronic switch that facilitates the sending and receiving of messages;

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. .

The services of a public switched network (PSTN) or an ISDN (Intergrated Service Digital Network) subscriber using an electronic switching center are available to the subscribers who are directly connected by a physical circuit to a predetermined subscriber interface device inside the exchange.

In order to accommodate subscribers remote from the electronic switchgear, it was possible to remotely locate the existing electronic switchgear and a sub-system equipped with both software and hardware resources.

However, the 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 switch. In addition, this sub-system is not able to process the subscriber information and is actually controlled by the electronic switchboard.

On the other hand, as is well known in the art, the V5.2 interface is a signaling protocol between an access network (AN) and an exchange recommended in European Telecommunication Standards (ETS) 300 and 347-1. .

Here, the access network accepts analog and digital subscribers, but does not have an active call processing function for the subscriber, and performs a call processing for the subscriber by sending and receiving a predetermined message with the exchange through the V5.2 interface link. to be.

Recently, as mentioned above, it is not equipped with hardware or software resources of all electronic switchboards. Overall call processing is now possible.

On the other hand, when one or more E1 links are accommodated in an electronic switch that can accommodate a V5.2 interface, it is desired to freely transmit and receive a predetermined message on a specific link and a specific channel.

Accordingly, the present invention has been made in view of the above-described circumstances, and in the electronic switchboard accommodating a V5.2 interface, one or more E1 links for the V5.2 interface are combined by using an internal bus to connect a specific E1 link. It is an object of the present invention to provide a V5.2 link receiving apparatus using an internal bus in an all-electronic exchange that facilitates the transmission and reception of V5.2 messages on a specific channel.

1 is a block diagram showing the configuration of a V5.2 link receiving apparatus using an internal bus in an electronic switch according to an embodiment of the present invention.

FIG. 2 is a flow chart for explaining the operation of the device of the configuration of FIG.

* Brief description of the main parts of the drawing

10: V5.2 user part 20: V5.2 message processing part

30: V5.2 bus control section 40: V5.2 bus section

50, 60: E1 link matching unit 70: subscriber matching device

The V5.2 link receiving apparatus using the internal bus in the electronic switch according to the present invention for realizing the above object is provided in the electronic switch that provides a communication function for the V5.2 subscriber by receiving the V5.2 interface; A link matching section for interfacing a link associated with a V5.2 subscriber section, a V5.2 bus section for providing a communication path for messages input or output of one or more link matching sections, and a series of V5.2 subscribers. And a V5.2 bus control unit for specifying a specific transmission link and a transmission channel for the messages received from the V5.2 control unit and outputting them to the V5.2 bus unit. do.

Accordingly, as described above, by connecting one or more V5.2 E1 links using an internal bus, it is easy to transmit and receive messages using a specific link and a specific channel.

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

1 is a block diagram showing the configuration of a V5.2 link receiving apparatus using an internal bus in an electronic switch according to an embodiment of the present invention.

In the figure, reference numeral 10 denotes the overall call control for the public switched network or ISDN subscriber that is interfaced with V5.2, as well as the management, charging, status, and statistics management of predetermined V5.2 resources according to the requirements of the V5.2 subscriber. The V5.2 user part to be executed.

In addition, reference numeral 20 denotes a V5,2 message processing unit for providing an appropriate communication path between the V5.2 bus control unit 30 and the V5.2 user unit 10, which will be described later. 20 determines whether the predetermined V5.2 control message is input from the V5.2 bus controller 30, as well as performing the contracted signal processing on a valid V5.2 message, and then performing the V5.2 control message. The V5.2 bus control unit 30 outputs to the user unit 10, converts the control message for the system resource input from the V5.2 user unit 10, and the control message according to call allocation / cancellation into the agreed data format. Will be printed.

In addition, reference numeral 30 denotes one or more E1 links by performing appropriate control on the predetermined control message and call related message input through the V5.2 message processing unit 20 through the V5.2 bus unit 40. It is a V5.2 bus control unit which transmits and controls a message to a specific link and a specific channel of the matching unit 50 _{1 to} 50 _N.

Also, reference numeral 40 provides a communication path for a predetermined V5.2 message between the V5.2 bus control unit 30 and one or more E1 link matching units 50 _{1 to} 50 _N to be described later. V5.2 bus unit and, 50 (50 ₁ ~50 _N) is an E1 link matching portion that enables the matching of the physical line (E1) to which is connected between the electronic switch and before a remote location remote subscription of the female, the The E1 link matching unit 50 _{1 to} 50 _N outputs this to the remote subscriber side using a specific channel based on a predetermined control message or call related message input through the V5.2 bus unit 40, and the remote subscriber side. The predetermined message input from the V5.2 bus section 40 is outputted.

Reference numeral 60 (60 ₁ to 60 _N ) is an E1 link matching unit that enables E1 link matching between the remote subscriber side and the electronic switchboard, and 70 is a public switched network (PSTN) directly connected by a physical line. Subscriber matching device for matching a Public Switched Telephone Network (ISDN) or an Intergrated Service Data Network (ISDN) subscriber, the subscriber matching device 70 having a predetermined signal (eg, an off-hook signal) in accordance with a change in subscriber status from the subscriber. ) Is inputted, the corresponding signal is output to the E1 link matching unit 60 or the contracted signal is output to the subscriber based on the control message for the subscriber state input through the E1 link matching unit 60.

Here, the subscriber matching device 70 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 configuration of FIG. 1 will be described in more detail with reference to the operation flowchart of FIG. 2. First, an operation when a transmission message is generated from the switchboard side to the subscriber side at a remote location will be described.

When the message to be transmitted from the V5.2 user unit 10 to the remote subscriber unit in the normal state is generated (step ST1), the V5.2 user unit 10 sends a message to be transmitted to the V5.2 message processing unit 20. Will be transmitted (ST2 step).

Subsequently, the V5.2 message processing unit 20 receiving the message from the V5.2 user unit 10 performs the contracted signal processing on the corresponding transmission message, and then transfers it to the V5.2 bus control unit 30. (ST3 step).

Subsequently, the V5.2 bus controller 30 performs the contracted signal processing on the received V5.2 message, and then recognizes the available E1 link and channel, and then transmits the processed message to the V5.2 bus unit 40. ) Will be output (ST4 step).

And, V5.2 bus unit 40 and outputs the V5.2 V5.2 message outputted from the bus control section 30 in the E1 Link matching portion (50 ₁ ~50 _N), V5.2 bus unit ( The E1 link matching unit 50 _{1 to} 50 _N receiving the transmission message through 40 outputs the transmission message to the remote subscriber through the specified specific channel (step ST5).

Then, the E1 link matching unit 60 ₁ to 60 _N of the remote subscriber unit outputs the received control message to the subscriber matching device 70, and the subscriber matching device 70 determines the subscriber to the subscriber based on the received message. Will print a message.

Next, a description will be given of an operation in which a message is transmitted from the subscriber side at the remote site to the switchboard side and the switchboard receives the message.

When the status of any V5.2 subscriber is changed, the subscriber matching device 70 that recognizes this outputs a predetermined status message for the subscriber to the corresponding link matching unit 60 ₁ to 60 _N. Then, the E1 link matching section 60 ₁ to 60 _N outputs the input status message to the E1 link matching section 50 _{1 to} 50 _N on the side of the all-electronic exchange corresponding through the specific E1 channel.

Here, one or more E1 links in one or more E1 link matching units 50 _{1 to} 50 _N maintain a standby state so that a specific channel can receive a message received from a remote subscriber unit at any time (step ST11). .

At this time, that is, when the E1 link matching unit 50 _{1 to} 50 _N receives a predetermined message from the remote subscriber unit via the E1 link while waiting for a message received from the remote subscriber unit (step ST12), the corresponding E1. The link matching unit 50 _{1 to} 50 _N outputs the received V5.2 message to the V5.2 bus unit 40, and the V5.2 bus unit 40 controls the V5.2 bus along the communication path. The message is output to 30 (ST13 step).

Subsequently, the V5.2 bus controller 30 performs the contracted signal processing on the V5.2 message received from the V5.2 bus unit 40 and then outputs it to the V5.2 message processor 20. (ST14 step).

Then, the V5.2 message processing unit 20 determines the validity of the input message and outputs the valid message to the V5.2 user unit 10 (step ST15).

Accordingly, as described above, by connecting one or more V5.2 E1 links using an internal bus, it is easy to transmit and receive messages using a specific link and a specific channel.

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, V5.2 is connected to a specific channel of a specific E1 link by combining one or more E1 links for the V5.2 interface by using an internal bus in an electronic switch that accommodates a V5.2 interface. It is possible to realize a V5.2 link receiving device using an internal bus in an all-electronic exchange that facilitates the sending and receiving of messages.

Claims (1)

An all-electronic exchange that accepts a V5.2 interface and provides a communication function for a V5.2 subscriber; A link matching unit for interfacing the link associated with the V5.2 subscriber unit; A V5.2 bus unit for providing a communication path of messages input or output of one or more link matching units, A V5.2 controller for performing a series of controls on the V5.2 subscribers, V5 using an internal bus in an all-electronic exchange, comprising a V5.2 bus control unit for specifying a specific transmission link and a transmission channel for the messages received from the V5.2 control unit and outputting them to the V5.2 bus unit. 2 link receiving device.

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