KR100275074B1 - Electronic exchanger capable of expropriating of v5.2 interface using an external host - Google Patents

Abstract

PURPOSE: A V5.2 link receiver using an external host in a full-electronic exchange is provided, in a full-electronic exchange receiving V5.2 interface, to facilitate the transceiving of the V5.2 message to a certain channel in the certain E1 link by managing one or more V5.2 interface-use E1 link by an external host. CONSTITUTION: In a V5.2 link receiver of a full-electronic exchange that receives V5.2 interface and thus provides the communicating functions with respect to V5.2 subscriber who uses the interface, A V5.2 user part(11) performs the overall control operations in response to the V5.2 subscriber. An access network(AN) controlled by the V5.2 user part receives the V5.2 subscriber connected to a physical line. An external host part(12) matches the V5.2 user part with the access network outside the full-electronic exchange.

Description

V 5.2 Link Receptor Using External Host in Electronic Switching System

TECHNICAL FIELD The present invention relates to an all-electronic exchange, and more particularly, to an all-electronic exchange for accommodating a V5.2 interface, by managing an external host with one or more E1 links for the V5.2 interface, the V5 to a specific channel of a specific E1 link. .2 a V5.2 link receiver using an external host 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 the V5.2 interface, one or more E1 links for the V5.2 interface are managed by using an external host. It is an object of the present invention to provide a V5.2 link receiver using an external host in an electronic switch 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 device using an external host in the 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: electronic switch 11: V5.2 user part

12: external host connection 20: external host

21: V5.2 message processing unit 22: V5.2 bus control unit

23: V5.2 bus section 24, 31: E1 link matching section

30: remote subscriber unit 32: subscriber matching device

The V5.2 link receiving apparatus using an external host in the electronic switch according to the present invention for realizing the above object of the electronic switch that provides a communication function for the V5.2 subscriber using the V5.2 interface. V5.2 link receiving device; V5.2 user part for performing overall control operation of V5.2 subscriber, access network for accommodating V5.2 subscriber connected by physical line under control of V5.2 user part, and external of switchboard In an embodiment, the V5.2 user unit and an external host unit for matching the access network are configured.

Here, the external host unit, N link matching unit for interfacing N V5.2 links to accommodate a plurality of V5.2 subscribers, and to provide a common communication path for the input and output messages of the N link matching unit And a V5.2 bus processor, and a V5.2 message processor for designating and outputting a V5.2 link and a channel for performing a series of signal processing on a message to be transmitted.

Accordingly, as described above, by managing an E1 link for one or more V5.2 interfaces using an external host, it is easy to transmit and receive messages through 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 external host in an electronic switch according to an embodiment of the present invention.

In the drawing, reference numeral 10 denotes an all-electronic exchanger, which includes a V5.2 user portion 11 and an external host connection portion 12. Here, the V5.2 user unit 11 not only performs overall call control for the public switched network or ISDN subscriber interfaced with the V5.2 interface, but also manages, charges, and manages predetermined V5.2 resources according to the request of the V5.2 subscriber. Status and statistics management is performed, and the external host connection unit 12 is for matching the V5.2 user unit 11 and the external host unit 20 to be described later.

In addition, reference numeral 20 denotes an external host unit for performing a series of signal processing by matching one or more E1 links, which are communication lines between the electronic switchboard 10 and the remote subscriber unit 30, which will be described later. a is configured to include a V5.2 message processing section 21 and, V5.2 bus controller (22), V5.2 bus unit 23 and, E1 link matching portion (24 ₁ ~24 _N).

Here, the V5.2 message processing unit 21 provides an appropriate communication path between the V5.2 bus control unit 22 and the V5.2 user unit 11 coupled through the external host connection unit 12 to be described later. In particular, the V5.2 message processing unit 21 determines whether or not conformity to a predetermined V5.2 control message input from the V5.2 bus control unit 22, as well as a contract for valid V5.2 messages. After performing the processed signal processing, it is outputted to the external host connection unit 12, and control messages and call allocation / revocation on system resources transmitted from the V5.2 user unit 11 through the external host connection unit 12. The control message according to the present invention is converted into the agreed data format and outputted to the V5.2 bus controller 22.

In addition, the V5.2 bus controller 22 performs appropriate control on predetermined control messages and call-related messages input through the V5.2 message processor 21 and then through the V5.2 bus unit 23. One or more E1 link matching units 24 _{1 to} 24 _N transmit and control a message on a specific link and a specific channel.

The V5.2 bus unit 23 is configured to provide a predetermined V5.2 message between the V5.2 bus control unit 22 and one or more E1 link matching units 24 _{1 to} 24 _N to be described later. It is to provide a communication path, the E1 link matching unit (24 ₁ ~ 24 _N ) is to match the physical line (E1) connected between the switchboard 10 and the remote subscriber unit 30 of the remote place. As a resource for making this possible, the E1 link matching unit 24 _{1 to} 24 _N uses a specific channel for remote control based on a predetermined control message or call related message inputted through the V5.2 bus unit 23. It outputs to the subscriber side 30, and outputs the predetermined message input from the remote subscriber side to the V5.2 bus part 23. As shown in FIG.

On the other hand, reference numeral 30 denotes a remote subscriber unit located at a remote location, which includes an E1 link matching unit 31 _{1 to} 31 _N and subscriber matching devices 32 to 32.

Here, the E1 link matching units 31 _{1 to} 31 _N are resources for enabling E1 link matching between the remote subscriber side 30 and the external host unit 20, and the subscriber matching devices 32 _{1 to} 32 _{N are provided.} ) is a public switched network that is directly connected to the physical line (PSTN) (public Switched Telephone network) or ISDN (Intergrated Service Data network) access network (, the subscriber matching device (32 ₁ ~32 _N) as aN) for registering the subscriber is a predetermined signal corresponding to the change of a subscriber from a subscriber status (e.g., off-hook signal) is output when inputted with a signal E1 corresponding to the corresponding link-aligning part (31 ₁ ~31 _N) or E1 link mating portion thereof ( 31 _{1 ~} 31 _N ) Based on the control message for the subscriber status input through the subscriber to the subscriber to output the signal.

Here, the subscriber matching devices 32 _{1 to} 32 _N 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 electronic switchboard side to the subscriber side at a remote location will be described with reference to FIG.

When the message to be transmitted from the V5.2 user unit 11 to the remote subscriber unit in the normal state is generated (step ST1), the V5.2 user unit 11 outputs the generated transmission message to the external host connection unit 12. This external host connection unit 12 transmits the transmission message received from the V5.2 user unit 11 to the V5.2 message processing unit 21 of the external host unit 20 (ST3 step). ).

Subsequently, the V5.2 message processing unit 21 receiving the transmission message from the electronic switch 10 performs the signal processing contracted with respect to the transmission message, and then transfers it to the V5.2 bus controller 22. (ST4 stage).

Subsequently, the V5.2 bus controller 22 performs the contracted signal processing on the received V5.2 message, and then designates the available E1 link and channel to process the transmitted message as the V5.2 bus unit 23. ) Will be output (ST5 step).

Then, V5.2 bus unit 23 and outputs the V5.2 V5.2 message outputted from the bus control section 22 in the E1 Link matching portion (24 ₁ ~24 _N), V5.2 bus unit ( The E1 link matching unit 24 _{1 to} 24 _N receiving the transmission message through the 23) outputs the transmission message to the remote subscriber unit 30 through the specified specific channel (step ST6).

Then, the E1 link matching unit 31 _{1 to} 31 _N of the remote subscriber unit outputs the received message to the subscriber matching devices 32 _{1 to} 32 _N , and the subscriber matching device 32 _{1 to} 32 _N receives the received message. Based on this, a predetermined message is output to the subscriber.

Next, 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 will be described with reference to FIG.

The subscriber matching device 32 _{1 to} 32 _N that recognizes when the status of any V5.2 subscriber is changed, sends a predetermined status message to the corresponding E1 link matching unit 31 _{1 to} 31 _N. Will print. Then, the E1 link matching units 31 _{1 to} 31 _N output the input state message to the E1 link matching units 24 _{1 to} 24 _N of the corresponding external host unit 20 through a specific E1 channel.

Here, in one or more of the E1 link matching units 24 _{1 to} 24 _N , the specific E1 link maintains a specific channel in a standby state so as to wait to receive a message received from the remote subscriber unit 30 at any time. (ST11 stage).

At this time, that is, when the E1 link matching unit 24 _{1 to} 24 _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 30 (step ST12). The corresponding E1 link matching section 24 _{1 to} 24 _N outputs the received V5.2 message to the V5.2 bus section 23, and the V5.2 bus section 23 follows the communication path. 2 The message is output to the bus controller 22 (step ST13).

Subsequently, the V5.2 bus controller 22 performs the contracted signal processing on the V5.2 message received from the V5.2 bus unit 23, and then outputs it to the V5.2 message processor 21. (ST14 step).

After determining the validity of the input message, the V5.2 message processing unit 21 outputs the valid message to the electronic switchboard 10. That is, the V5.2 message processing unit 21 outputs the message received from the V5.2 bus control unit 22 to the external host connection unit 12 of the electronic switchboard 10 (step ST15). 12 outputs the message received from the external host unit 20 to the V5.2 subscriber unit 11 (step ST16). Then, the V5.2 subscriber unit 11 performs a series of control based on the input message.

Accordingly, as described above, by managing an E1 link for one or more V5.2 interfaces using an external host, it is easy to transmit and receive messages through 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 external host in an electronic switch that accommodates a V5.2 interface. It is possible to realize a V5.2 link receiving device using an external host in an electronic switch that facilitates the transmission and reception of messages.

Claims (2)

A V5.2 link receiving device of an all-electronics exchange that accepts a V5.2 interface and provides a communication function for a V5.2 subscriber using the same; A V5.2 user unit for performing overall control operations for the V5.2 subscribers; An access network for accommodating V5.2 subscribers connected to a physical line under the control of a V5.2 user unit, and A V5.2 link receiving apparatus using an external host in an all-electronic exchange, comprising an external host unit for matching the V5.2 user unit and an access network. The method of claim 1, wherein the external host unit, N link matching units for respectively interfacing N V5.2 links that accommodate multiple V5.2 subscribers, A V5.2 bus unit for providing a common communication path for input / output messages of the N link matching units; After performing a series of signal processing for the message to be transmitted, and the V5.2 message processing unit for specifying and outputting the V5.2 link and channel for transmitting the message, using an external host V5.2 link receiving device.

Images