KR19990042267A - How to handle the PPI protocol of V5.2 interface - Google Patents

Abstract

The present invention relates to a method for processing a PTI protocol of a V5.2 interface, and after generating an originating / receiving general subscriber, the matching network receives a hook-off signal transmitted from a terminal of the originating general subscriber, and sends the PS to the V5.2 interface controller. The TN protocol message is transmitted, and the bearer channel is transmitted to the local exchange according to the request for allocation of the bearer channel. There is an effect that call connection processing using the Tien protocol becomes smooth.

Description

How to handle the PPI protocol of V5.2 interface

The present invention relates to a full electronic telephone eXchange, and in particular, in a small capacity DTS-1100A (improved) exchanger, it is possible to interface between a local eXchange and an access network. It relates to a method of processing a PSTN protocol (hereinafter abbreviated as PSTN) protocol of a V5.2 interface.

In general, the DTS-1100A small-capacity exchanger is an international standard electronic exchange, which is used for local, local / Tandem of the PSTN, and ultimately in various network types such as general information communication network and intelligent network. It has been developed to develop into a flexible switch, and is suitable and suitable for all applications in terms of external size, performance, service flexibility, and network environment adaptability.

In the conventional call connection method, the hook-off signal and the dialing signal of the general subscriber are outputted to the main processor via the line processor, without using a matching network in the line processor, and the call is connected between the general subscribers.

In addition, there is a problem in that there is no V5.2 interface, which is a call connection PSTN protocol using a matching network, for a hook-off and dialing signal of a general subscriber.

The present invention has been made to solve the above problems, and an object thereof is to provide a method for processing a PSTN protocol of a V5.2 interface that enables call connection processing using a V5.2 interface PSTN protocol during a matching network and a local exchange. It is.

The present invention for achieving the above object relates to a method for processing the PST protocol protocol of the V5.2 interface, the method comprising the steps of: creating an incoming / outgoing general subscriber to the call processing between the incoming / outgoing general subscriber in the matching network; Receiving a hook-off signal transmitted from a terminal of an originating general subscriber and transmitting a PTI protocol message to a V5.2 interface controller; The V5.2 interface controller receiving the PST protocol message from the matching network and requesting allocation of a bearer channel to a local exchange; Transmitting, by the local exchange, the idle bearer channel to the V5.2 interface controller to allocate a channel; The V5.2 interface control unit transmits an all-location signal to the matching network and receives an acknowledgment of the all-location transmission; The V5.2 interface controller includes a step of establishing a PSTN call connection by transmitting / receiving a hook-off signal, a digit signal, and a signal necessary for call processing with a local exchange to the assigned bearer channel.

1 is a block diagram of a PSTN protocol processing method of a V5.2 interface according to the present invention;

2 is a detailed flowchart illustrating a call connection method using a PSTN protocol of a V5.2 interface;

3 is a detailed flowchart illustrating a call blocking method using an outgoing matching network in a PSTN protocol of a V5.2 interface;

4 is a detailed flowchart of a call blocking method using a called-side matching network in a PSTN protocol of a V5.2 interface.

<Description of Symbols for Main Parts of Drawings>

10: LP 12: AN

14: VIC section 20: MP

22: VSC section 24: SCC section

26: SDH part 30: IOP part

Hereinafter, the objects and features of the present invention will be described in more detail with reference to the accompanying drawings so that the objects and features of the present invention can be more clearly understood.

1 is a block diagram of a method for processing a PSTN protocol of a V5.2 interface according to the present invention, which is a line processor 10 (abbreviated as LP) 10 and an access network (AN). 12, V5.2 Interface Control (hereinafter abbreviated as VIC) section 14, Main Processor (hereinafter abbreviated as MP) 20, V5.2 Subscriber Control (hereinafter referred to as VSC) section 22, Subscriber Call Control (hereinafter referred to as SCC) section 24, and Subscriber Data Handling (Subscriber) Data Handling: (hereinafter abbreviated as SDH) section 26 and Input Output Processor (hereinafter referred to as IOP) section 30.

The LP 10 is a line processor including a VIC unit 14 internally. The LP 10 detects a Hook Off / Hook On signal transmitted from a general subscriber and connects a call with a dialed destination general subscriber. To the MP 20 for transmission.

The AN 12 is a matching network that accepts analog and digital subscribers and connects to the exchange via the V5.2 interface. The AN 12 receives hook-on and hook-off signals from the general subscriber and transmits the PSTN protocol message to the VIC unit 14. Send it.

The VIC unit 14 is a block for separating and controlling the protocol of the V5.2 interface. The VIC unit 14 receives a PSTN protocol message from the AN 12 and bears a bearer channel (Bearer) to the VSC unit 22 in the MP 20. request an allocation for channel).

Here, the bearer channel is a B-assigned from a Pulse Code Modulation Encoded 64 Kbit / sec channel from a PSTN user port or a Basic Access user port or a Primary Access user port. Provides bidirectional transmission capability for the channel.

The MP 20 is a main processor including the VSC unit 22, the SCC unit 24, and the SDH unit 26 internally. The MP 20 receives various signals transmitted from the LP 10, and receives a general subscriber and a relay. A processor that performs call processing and performs maintenance functions for system state management.

The VSC unit 22 is a block that performs a call processing and operation / maintenance process of a V5.2 interface subscriber. The VSC unit 22 selects an idle bearer channel in response to a bearer channel allocation request of the VIC unit 14, and selects a VIC unit ( 14).

SCC unit 24 is a block that performs the call processing function of the general subscriber, and transmits / receives the hook on / hook off signal transmitted from the VIC unit 14 and the signals necessary for digit transmission / reception and call processing. Connect a PSTN call.

The SDH unit 26 is a block for processing data of a general subscriber. The SDH unit 26 provides information on call connection and call blocking by man & machine communication (hereinafter, referred to as MMC) connected to the IOP 10. It is registered, and performs the process of generating, changing, and canceling the terminal-related information of the general subscriber, and transmits to the SCC unit 24 by controlling with a work code, that is, a remote switching code.

The IOP 30 is an input / output processor that is in charge of input / output port control, and performs message data handling for analyzing and managing messages input and output through the input / output port, and state management for each input / output port. And Input Output Process Management, which performs input and output control functions, Disk Handling, which performs file management functions for hard disks in a PC, and creation and system software for system data. It consists of Data Generation that performs the matching function and Data Extraction which extracts the station data from the system package in operation, and uses the MMC to connect and disconnect the PSTN call. Information is registered in the SDH unit 26.

The block diagram of the PSTN protocol processing method of the V5.2 interface according to the present invention configured as described above has been described, and FIG. 2 illustrates a detailed flowchart of the call connection method using the PSTN protocol of the V5.2 interface. .

First, the AN 12 generates a general subscriber to perform call processing between general subscribers (step 200).

When the calling party subscriber and the called party subscriber are generated, the AN 12 receives a hook-off signal among the hook on / hook off signals transmitted from the terminal of the calling party subscriber, and sends a PSTN protocol message to the VIC unit 14. Transmit (step 201).

The VIC unit 14 receives the PSTN protocol message and requests the VSC unit 22 to allocate a bearer channel (step 202).

The VSC unit 22 transmits the idle bearer channel to the VIC unit 14 to allocate the channel (step 203).

The VIC unit 14 receives an allocate signal along with an Allocation signal to the AN 12 (step 204).

The VIC unit 14 transmits / receives signals necessary for hook-off signals, digit transmission / reception, and call processing with the SCC unit 24 to the assigned bearer channel, thereby establishing a PSTN call (step 205).

The detailed flowchart of the call connection method using the PSTN protocol of the V5.2 interface according to the present invention configured as described above has been described. FIG. 3 is a view illustrating a call blocking method using a caller matching network in the PSTN protocol of the V5.2 interface. The detailed flowchart of this invention is demonstrated.

When the general subscriber connected to the AN 12 is the calling party for call blocking, the VIC unit 14 receives a disconnect signal from the general subscriber connected to the AN 12 (step 300).

VIC unit 14 requests VSC unit 22 to release the bearer channel (step 301).

The bearer channel release is transmitted from the VSC unit 22 to the VIC unit 14 (step 302).

The VIC unit 14 transmits the disconnect ac signal and the de-location signal to the AN 12 (step 303).

Since the VIC unit 14 receives an acknowledgment of the disconnect ACK signal and the de-allocation signal to the AN 12, the PSTN call is blocked (step 304).

The detailed flowchart of the call blocking method using the calling party matching network in the PSTN protocol of the V5.2 interface according to the present invention configured as described above was described. FIG. 4 is a call using the called party matching network in the PSTN protocol of the V5.2 interface. A detailed flowchart of the present invention with respect to the blocking method will be described.

When the general subscriber connected to the AN 12 is the called party for call blocking, the VIC unit 14 receives a channel release signal from the SCC unit 24 (step 400).

When the VIC unit 14 requests the bearer channel release to the VSC unit 22 (step 401), the VSC unit 22 transmits information on the bearer channel release to the VIC unit 14 (step 402).

The VIC unit 14 transmits a disconnect signal to the AN 12 (step 403).

After determining whether the bearer channel release signal is transmitted from the VSC unit 22 to the VIC unit 14 (step 404), the VSC unit 22 transmits a de-allocation signal from the VIC unit 14 to the AN 12. The PSTN call is blocked because it transmits (step 405).

In conclusion, since the AN 12, which is a matching network, and the VIC unit 14, which is a V5.2 interface control, are used to interface the PSTN protocol to the line processor, call connection processing between the local switch and the matching network is smoothly performed.

As described above, the present invention described above does not substantially control the call processing procedure in the matching network in the line processor of the national exchange, but transmits the analog line state information by the V5.2 interface protocol to connect the call between general subscribers, There is an effect that call connection processing using the PSTN protocol is desired during the local exchange.

Claims (3)

In the PST protocol protocol apparatus of the V5.2 interface having an originating / receiving general subscriber, a matching network, a V5.2 interface controller, and a local exchange, Generating the originating / receiving general subscriber to perform call processing between the originating / receiving general subscriber in the matching network; Receiving a hook-off signal transmitted from a terminal of the calling general subscriber and transmitting the PTI protocol message to the V5.2 interface controller; Receiving the V5.2 interface message from the matching network and requesting allocation of a bearer channel to the local exchange; Sending, by the local exchange, an idle bearer channel to the V5.2 interface controller to allocate a channel; The V5.2 interface control unit transmits the location signal to the matching network, and receives a confirmation tone for the location transmission; The V5.2 interface control unit comprises the step of establishing a connection to the PSTien call by transmitting / receiving a hook-off signal, a digit signal, and a signal necessary for call processing with the local exchange to the assigned bearer channel. How to handle the PPI protocol of the interface. In the call blocking method using the source matching network in the PST protocol of V5.2 interface, Receiving a disconnect signal for a call blocking from the calling general subscriber, receiving substantial release information on a release request for a bearer channel to the local exchange, and a disconnect ac signal and a de-location signal according to the release information The PST protocol processing method of the V 5.2 interface, characterized in that it comprises the step of transmitting to the matching network to block the PST. In the call blocking method using the destination matching network in the PST protocol of V5.2 interface, Receiving a signal for call blocking from the originating local exchange, receiving substantial release information on a release request for a bearer channel to the local exchange, and transmitting an Ack signal according to the call release information to the matching network And the call blocking step.