KR970004860B1 - Method for translating and routing prefix in full electronic switching system - Google Patents

Abstract

The method is for translating and routing a prefix according to incoming route of whole electronic switching system comprising a central control subsystem(1), an interconnection network processor(2) and an access switching subsystem(3). The method includes: a first step of translating the prefix using a digit analysis table assigned to the incoming route; a second step of obtaining an outcoming route using a route index which is obtained from SLCT(Route Select) value assigned to the incoming route and the translating operation of the prefix.

Description

Prefix translation / rooting method by root

1 is a hardware configuration of the electronic switching system to which the present invention is applied.

2 is a flowchart illustrating a prefix translation method using DAT according to the present invention.

3 is a process flow diagram for the outgoing route routing method using the SLCT according to the present invention.

* Explanation of symbols for main parts of the drawings

1: Central Control Subsystem (CCS): Central Control Subsystem

2: INS (Interconnection Network Subsystem): Network control subsystem

3: ASS (Access Switching Subsystem): Match Switching Subsystem

4: INP (Interconnection Network Processor): Connection Network Control Processor

5: NTP (Number Translation Processor): Number Translation Processor

6: Access Switching Processor (ASP): Match Switching Processor

7: Private Branch Exchange Control (PBXC): Private Exchange Function Control Block

8: NTR (Number Translation): Number Translation Block

9: RCO (Route Control): Route Control Block

10: TKC (Trunk Control): Relay Line Control Block

The present invention relates to a prefix translation and rooting method per root of an electron exchanger verification system.

In the prefix translation method of the conventional electronic switching system, prefix translation is always performed using only the received digits. Therefore, prefix translation is always performed in the same way. Due to the diversification, even if the same digit is received, there is a necessity to perform the prefix translation differently according to the received position (by root, operator, etc.).

The present invention devised by the necessity as described above, a prefix translation and rooting method for each transit exchanger verification system root to perform prefix translation for the same digit with different routes to obtain the prefix information for each request. The purpose is to provide.

In order to achieve the above object, the present invention, step 1 to perform the prefix translation using a digit analysis table (DAT) assigned to the attestation root; And a second step of obtaining an outgoing route using a route index obtained by performing route translation (SLCT) value and prefix translation assigned to the attestation route.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

1 is a hardware configuration diagram of an electronic switching system to which the present invention is applied.

First, the central control subsystem (hereinafter referred to as CSS) 1 is a subsystem that manages the functions of system management, maintenance, billing, statistics, and input / output devices.

Interconnection Network Subsystem (hereinafter referred to as INS) (2) includes Private Branch Exchange Control (hereinafter referred to as PBXC) (7) and Number Translation (hereinafter referred to as NTR) ( 8) and a Number Translation Processor (hereinafter referred to as NTP) with a built-in Route Control Block (hereinafter referred to as RCO) (5) and an Interconnection Network Processor (hereinafter referred to as INP). Including (4), it is a subsystem that performs spatial switch function, number translation, routing function, etc. which connect all ASS (3) with each other.

An Access Switching Subsystem (hereinafter referred to as an ASS) 3 includes an Access Switching Processor (hereinafter referred to as an ASP) incorporating a trunk control block (TKC) 10. (6), which is composed of subscriber and trunk line matching device, time switch, various signaling devices, and the like, and uses this to perform various call processing functions.

2 is a flowchart illustrating a prefix translation method using a digit analysis table (DAT) according to the present invention.

In order to use the DAT value, the incoming DAT value is assigned to the incoming route, and the prefix corresponding to the DAT is registered.

When a digit is received by the incoming route, the prefix translation request is made with the DAT value assigned to the route and the received digit (21). Upon receiving the number translation request, the DAT and prefix data are stored (22), and the digit analysis start point is obtained using the DAT value (23). Once the digit analysis start point is found, digit analysis is performed using the digit analysis start point and the received digit. However, since DAT is used to find a starting point for performing digit analysis, prefix translation can be performed differently when the DAT is different.

After all of the received digital data are analyzed, the corresponding prefix state is analyzed to perform respective processing (25). First, if the prefix state is a prefix change, the result is notified to the block requesting the translation of the prefix (26).

If the prefix is not accepted, the result is notified to the block requesting the translation of the prefix (27).

If all the digits are analyzed and the prefix status cannot be determined, the number of digits required for the analysis is obtained and a translation request is notified (28).

If the result of the digit analysis is an acceptance prefix, the prefix information is obtained and notified (29). In the case of an outgoing call, the routing request is performed and terminated (30).

3 is a flowchart illustrating an outgoing routing method using SLCT (Route Select) according to the present invention.

First, in order to perform routing using the SLCT value, the SLCT value is assigned to the incoming route and the root index table is registered. To register the root index table, enter the root index (outgoing route value obtained by performing number translation), SLCT, and outgoing route value that you actually want to route. Call processing using SLCT is as follows.

If a digit is received by the incoming route, the prefix translation is performed. As a result, in the case of the outgoing call, the routing request is made using the outgoing route value and the SLCT value obtained by performing the prefix translation (31). When the routing request is received, the root index and the SLCT value are stored (32), and the root index table is used using this value (33). It checks whether the registered route value exists in the root index table (34). If it does not exist, the route index obtained by performing the prefix translation is used by the outgoing route and the relay line occupancy request (35). If the route value registered in the route index table exists, the newly obtained route value is assigned as the outgoing route number and the relay line occupancy request is performed (36). In the case of outgoing call in this way, the root index resulting from prefix translation can be changed to the new outgoing root value using SLCT.

Therefore, as described above, the present invention has the effect of performing prefix translation differently on the same digit received from different roots so as to obtain prefix information for each request.

Claims (3)

Pre-routing prefix translation / routing applied to all-electronic switching system including Central Control Subsystem (CCS) (1), Network Control Subsystem (INS) (2) and Matched Switching Subsystem (ASS) (3) A method comprising: a first step (21 to 30) of performing a prefix translation using a digit analysis table (DAT) assigned to an incoming route; And a second step (31 to 36) for obtaining the outgoing route using the route select obtained by performing a route translation (SLCT) value assigned to the incoming route and the prefix translation. Prefix translation / rooting method by relay route. 2. The method of claim 1, wherein the first steps (21 to 30) comprise: a first step (21 to 25) of storing the prefix data and analyzing the prefix state according to the prefix translation request; A second step (26) of notifying the result of the block requesting the prefix translation and ending if the prefix status is changed after the first step (21 to 25); A third step (27) of performing the first steps (21 to 25) and, after performing, notifying a result of the block requesting the prefix translation if the prefix is not accepted; A fourth step 28 for notifying the translation request by obtaining the number of digits required for analysis if the prefix state cannot be determined after performing the first steps 21 to 25; And a fifth process (29, 30) which terminates after a routing request if the outgoing call of the digit analysis result is accepted after performing the first process (21 to 25). How to translate / root a star prefix. 2. The first process of claim 1, wherein the second steps 31 to 36 are performed by requesting routing using the outgoing route value and the SLCT value obtained by performing the prefix translation to store the root index and the SLCT value (31). , 32); A second step (33, 34) of searching for a root index table and checking whether a registered root value exists after performing the first step (31, 32); And if the registered route value does not exist after the second process (33, 34), uses the route index obtained by performing prefix translation as the outgoing route, makes a relay line occupancy request, and the route value registered in the route index table. Prefix translation / rooting for each route of the electronic switchboard incoming route, which includes a third process (35, 36) for allocating the newly obtained route value as the outgoing route number, performing the relay line occupancy request, and ending the presence of Way.