KR100295447B1 - Method for number translating and routing of switching system - Google Patents

Abstract

The present invention performs the number translation according to each number translation table corresponding to each group by using the Exchange Origination Group in the exchange system, and also does not go through the T-L-D-En number translation procedure for the issue proceeding from the relay exchange to another country. Routing is done by route occupied by another country, enabling the translation of numbers for each Nature of address for various kinds of calls and simplifying routing at the transit switch.

Description

How to handle number translation and routing in exchange systems {METHOD FOR NUMBER TRANSLATING AND ROUTING OF SWITCHING SYSTEM}

The present invention relates to a call processing method of an exchange system, and more particularly, to a number translation and routing method.

In general, for basic call services in a switching system, number translation and routing processing are performed. However, in the prior art, a number translation method for various kinds of calls is not provided, and in the case of a call processing proceeding from a transit exchanger to another country, there is a problem of retranslating and routing TLDN (Temporary Local Directory Number) from a large country. have.

That is, in the conventional number exchange procedure, when the set-up message is received, the originating exchange authenticates the originating subscriber and performs the number translation by a translation table without distinguishing a call. The relay call processing procedure in the relay exchange performs translation on the received TLDN, and if the result corresponds to relaying to another station, routing processing is performed.

Recently, however, there is a problem that each number translation is possible for various kinds of calls received in the switching system and that the routing at the relay exchange is simplified. In particular, in the exchange system that supports various types of services such as fax service and packet service including voice service such as IMT-2000 mobile communication network, the number translation and nature of address processing suitable for various calls should be available. do.

Accordingly, an object of the present invention is to provide a method for enabling translation of numbers corresponding to each Nature of address for various kinds of calls in an exchange system and simplifying routing at an intermediate exchange.

Another object of the present invention is to perform a number translation according to each number translation table corresponding to each group by using an exchange origination group in an exchange system, and for a call proceeding to another country in a transit switch, T-L-D-En It is to provide a method of routing to a route occupied by another country without going through the number translation process.

It is still another object of the present invention to assign a group ID to a plurality of types of call set-up messages using an exchange origination group in a number translation and routing method of an exchange system, and to convert a plurality of numbers. Among the tables, number translation is performed by designating a corresponding number translation table for an input call set-up message according to the assigned group ID, and if the assigned group ID is relayed to another station, the group ID-. It provides a method of occupying an output route set according to the digital camera.

In order to achieve the above object, the present invention provides a method of translating and routing numbers in a switching system, the first process of allocating group IDs for each type of call set-up messages using an exchange origination group. And a second process of performing a number translation by designating a corresponding number translation table for an input call set-up message according to the assigned group I-D among a plurality of number translation tables. If the DI is relayed to another station, it is characterized in that the third process occupies the output route set according to the group ID.

In addition, the present invention provides a method for translating a number in an outgoing exchange system using a first process of authenticating outgoing subscribers for various kinds of call set-up messages, and an exchange origination group of a corresponding call set-up message. A second process of allocating and inspecting a group ID, a third process of designating a corresponding number translation table according to the checked group ID, among a plurality of number translation tables provided for each group ID; And a fourth process of performing a corresponding number translation on the input call set-up message.

1 is a diagram illustrating a configuration of selecting a number translation table using an Exchange Origination Group in an exchange system according to an embodiment of the present invention.

2 is an example illustrating a process of relay call processing using a bypass route in a mobile communication network according to an embodiment of the present invention.

3 is a flowchart illustrating a number translation method in an originating exchange system according to an embodiment of the present invention.

4 is a flowchart illustrating a relay call processing procedure in a relay exchange system according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Specific details appear in the following description, which is provided to aid a more general understanding of the present invention, and it should be understood by those skilled in the art that the present invention may be practiced without these specific details. It will be self explanatory. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

The present invention performs a number translation on a call set-up message received using an Exchange Origination Group in an exchange system according to each number translation table corresponding to each group, and also performs a TLDN number translation procedure for a call proceeding to another country. Proceed with the corresponding set-up message routing to the route assigned to other station without going through.

On the other hand, the Exchange Origination Group means a set or group of a plurality of channels grouped by subscriber or line at the input of the switching system. In this case, the group reference may be a specific subscriber line or may be a kind of a call such as a voice signal, a packet signal, a circuit signal, and the like. In addition, the Exchange Origination Group may be preset in the design of the exchange system. In addition, the Exchange Origination Group may be configured as a set of specific circuit groups of the exchange, and the circuit means a channel-specific matching device connected to a line with a counterpart exchange.

In addition, according to an embodiment of the present invention, the exchange system assigns an Exchange Origination Group ID to the call set-up message received through the specific circuit group. The exchange system is provided with a plurality of number translation tables for each group. In the number translation, the switching system performs the number translation operation on the call using the number translation table corresponding to the given group ID. This makes it possible to process the Nature of address corresponding to each type of call.

1 is a diagram illustrating a configuration of selecting a corresponding translation table using an Exchange Origination Group in an exchange system according to an embodiment of the present invention.

The first call set-up message 11 to the M-th call set-up message 1M are various kinds of call set-up messages received in the entire switching system (not shown). The group ID allocator 100 allocates an Exchange Origination Group ID of each call set-up message using the Exchange Origination Group. In this case, the group ID allocator 100 may allocate a corresponding Exchange Origination Group ID to a call set-up message received through a specific circuit group. The number translation table designation unit 110 designates a corresponding number translation table for each set-up message according to the group ID. The first number translation table 111 to the Mth number translation table 11N perform number translation on corresponding set-up messages. In addition, the group ID allocator 100 does not perform TLDN number translation on the message if the predetermined call set-up message inputted by checking the given group ID is input through a circuit group allocated for relaying. Passing. As a result, the relay call set-up message is output as it is through the corresponding output terminal of the entire switching system.

On the other hand, the routing function of the system analyzes digits received through subscribers (including mobile subscribers, fixed subscribers, special number subscribers, etc.) or incoming route, and then calls routes to the desired destination. In order to set, the digit is transmitted according to the routing condition by occupying an idle relay line in the relay line group specified in the corresponding code. However, in addition to the basic routing functions, the routing-related functions provided by the system include the function of automatically designating the detour route when there is no idle relay line in the first attempt for efficient network management, the time dependent routing function, and the incoming call. Prefix route and bypass route division designation function and load sharing / call distribution routing function exist.

2 is an example illustrating a process of relay call processing using a bypass route in a mobile communication network according to an embodiment of the present invention.

FIG. 2 illustrates a base transceiver station for wireless communication with mobile stations, a base station controller for controlling the base station transmission system, a base station controller and a public switched telephone network (PSTN). It consists of a Mobile Switching Ceneter that is responsible for the transmission and reception of data and control signals.

As shown, the third MSC 240 receives the call set-up message 200 in which call processing proceeds to the bypass route. However, the third MSC 240 does not go through the procedure of re-translating the Temporary Local Directory Number (TLDN) received from the large power according to the present invention to find the destination. That is, the third MSC 240 uses the Exchange Origination Group of the call set-up message 200 to make the routing by occupying the route immediately set without translating the TLDN.

3 is a flowchart illustrating a number translation method in an originating exchange system according to an embodiment of the present invention.

When the call-up message is received in step 310, in step 320, the source switching system authenticates the calling subscriber through a check such as a home location register (HLR). In this case, the call set-up message may be various kinds of call set-up messages such as voice calls, circuit calls, packet calls, and the like. In step 330, the originating exchange system allocates and retrieves a group ID using the Exchange Origination Group of the call set-up message. In step 340, the originating exchange system designates a corresponding number translation table according to the retrieved group ID. In step 350, the originating exchange system performs number translation.

4 is a flowchart illustrating a relay call processing procedure in a relay exchange system according to an embodiment of the present invention.

If a predetermined call set-up message is received in step 410, the relay exchange system allocates and retrieves a group ID using the Exchange Origination Group of the call set-up message. In step 430, the relay switching system checks whether the searched group ID is relayed to another station. In this case, the group ID check may be an operation of checking whether the input call set-up message is input through a circuit group allocated for relaying. However, if the group ID of the call set-up message is not relayed to another station, the relay switching system performs the incoming call processing in step 440. If the group ID of the call set-up message is relayed to another station, the relay switching system occupies an output route set according to the group ID of the call set-up message.

1 to 4, the number translation method of the exchange system according to the embodiment of the present invention allocates group IDs for each type of call set-up message by using an Exchange Origination Group. And the exchange system includes a plurality of number translation tables, and designates a number translation table for the call set-up message according to the assigned Exchange Origination Group ID. The exchange system then performs the number translation.

In addition, the routing method of the exchange system according to an embodiment of the present invention allocates a group ID by using an Exchange Origination Group of an incoming call set-up message. The switching system checks whether the assigned group ID is relayed to another station. If the group ID of the call set-up message is relayed to another station, the output is set according to the group ID without performing TLDN number translation. Occupy the route.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, the present invention performs a number translation according to each number translation table corresponding to each group by using an Exchange Origination Group in an exchange system, and also makes a T-L-D-NN number for a call proceeding to another country at an intermediate exchange. Routing with routes occupied by other countries without going through the translation process has the advantage of enabling the number translation for each Nature of address for various kinds of calls and simplifying routing at the transit switch.

Claims (14)

In the number translation and routing method of the exchange system, A first process of allocating group IDs by type for a plurality of types of call-up messages using an exchange origination group; A second process of performing a number translation by designating a corresponding number translation table for an input call set-up message according to the assigned group IDs among a plurality of number translation tables; And a third process of occupying the output route set according to the group ID if the assigned group ID is relayed to another station. The method of claim 1, wherein the criteria of the exchange origination group is Number translation and routing method of the switching system, characterized in that the specific subscriber line. The method of claim 2, wherein the criteria of the exchange origination group is Number translation and routing method of a switching system, characterized in that the call type of voice signal, packet signal and circuit signal. The third process of claim 3, And checking whether the input call set-up message has been input through a circuit group assigned for relaying. In the number translation method of the exchange system, A first step of allocating group IDs by type for a plurality of call set-up messages using an exchange origination group; A second process of designating a corresponding number translation table for an input call set-up message according to the assigned group IDs among a plurality of number translation tables; And a third process of performing a corresponding number translation on the input call set-up message. The method of claim 5, wherein the criteria of the exchange origination group, A number translation method of a switching system, characterized in that the specific subscriber line. The method of claim 6, wherein the criteria of the exchange origination group, A number translation method of a switching system, characterized in that a call type of a voice signal, a packet signal, and a circuit signal. In the routing processing method of the exchange system, A first process of allocating a group ID using an exchange origination group of an inputted call-up message; A second step of checking whether the allocated group ID is relayed to another station; And a third process of occupying the output route set according to the group ID for the input call set-up message if the assigned group ID is relayed to another station. . The method of claim 8, wherein the criteria of the exchange origination group, Routing processing method of the switching system, characterized in that the specific subscriber line. The method of claim 9, wherein the criteria of the exchange origination group, Routing processing method of the switching system, characterized in that the call type of voice signal, packet signal and circuit signal. The second process of claim 10, And checking whether the input call set-up message is input through a circuit group allocated for relaying. In the number translation method of the originating exchange system, A first step of authenticating outgoing subscribers for various kinds of call-up messages; A second process of allocating and inspecting a group ID using an exchange origination group of an inputted call-up message; A third process of designating a corresponding number translation table according to the checked group IDs among a plurality of number translation tables provided for each group ID; And a fourth process of performing a corresponding number translation on the input call set-up message. The method of claim 12, wherein the criteria of the exchange origination group, A number translation method of an outgoing exchange system, characterized in that the specific subscriber-specific line. The method of claim 13, wherein the criteria of the exchange origination group, A number translation method of a switching system, characterized in that a call type of a voice signal, a packet signal, and a circuit signal.