KR100444828B1 - Method for Distributed Processing of Trunk Call Using Signaling Point Partitioning - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a relay call distribution processing by signal point splitting in a large-capacity ATM switch.

2. Technical problem to be solved by the invention

Provides a method for simplifying internal routing between each signaling message processing layer by enabling incoming or outgoing call processing without data reference of other processors using only data configured in a processor to which signal points are allocated in a structure in which signal points are distributed.

3. Summary of the Solution of the Invention

A method for distributing relay calls by signal point division in an ATM switch in a distributed system environment, comprising: a first step of allocating signal point information to a plurality of processors, and assigning a signal link to a call processing processor to which the signal point information is allocated And a third step of setting a route for transmitting a relay call message to a call processing processor to which the signal point is assigned.

4. Important uses of the invention

Used for ATM Switching.

Description

Method for Distributed Processing of Trunk Call Using Signaling Point Partitioning}

The present invention relates to an Asyncronous Transfer Mode (ATM) exchange, and more particularly, to a relay call distribution processing method by signal point division in a large-capacity ATM switch.

Existing large-capacity ATM exchanger with a distributed system environment with multiple processors exchanges the exchange function by storing information about all signal network components such as signal network and signal link in one processor or by storing the same information in each processor. There is a problem that is not efficient in terms of capacity.

In addition, in a large-capacity ATM switch having a distributed system environment, a signal is normally processed because each processor needs to refer to data of another processor while performing a switching function or use a link controlled by another processor during link establishment. There is a problem that the internal routing of signaling messages is complicated by the load sharing function of the network layer.

The failure of either processor also results in failure of multiple signal links. That is, when a processor is down or a layer module in the processor is down, there is a problem that the path of the signal message generated by another processor is affected.

Accordingly, the present invention has been made to solve the above problems, and the incoming call or outgoing call processing can be performed without data reference of other processors using only data configured in a processor to which signal points are allocated in a structure in which signal points are distributed. Switching capacity by simplifying internal routing between signaling message processing layers, minimizing the impact of other processors even in the event of one processor failure, and minimizing the amount of data to be stored by distributing signal points and related data per processor. Its purpose is to provide a method for improving this.

According to the present invention, an ATM switch data for signal point segmentation control is specified by designating a main processor to control signal points, and assigning route and sub route data to be used as signal link data and user data transmission paths associated with the signal points. It is possible to handle the load sharing between signal links in the signal network based on this data, and to realize the efficient mechanism for the transit number translation and routing functions, so that it is easy to manage the distributed exchange data and the failure of the internal processor of the exchange. It enables distributed distributed call processing structure that is efficient in terms of management and performance without affecting other processors.

Those skilled in the art to which the present invention pertains can easily recognize other objects and advantages of the present invention from the drawings, the detailed description of the invention, and the claims.

1 is a structural diagram of an ATM switch to which the present invention is applied;

2 is a block diagram of a function related to relay call processing to which the present invention is applied;

3 is a flowchart showing a signal point segmentation and signal network component data allocation procedure according to the present invention;

4A to 4C are detailed flowcharts of FIG. 3;

5 is a flowchart illustrating a relay call processing by signal point division according to the present invention.

<Explanation of symbols for the main parts of the drawings>

201: operator system 204: data configuration system

205: routing data configuration unit 206: signal network data configuration unit

207: call processing processor 213: matching module

208: number translation unit 209: routing unit

210: relay call processing unit 212: database

211: signal network processing unit 214: signal link processing unit

In order to achieve the above object, the present invention provides a distributed call distribution processing method using signal point division in an asynchronous transmission switch system in a distributed system environment having a plurality of call processing processors, wherein each of the plurality of processors has signal points. A first step of allocating information, a second step of allocating a signal link to which a relay call message is to be transmitted from the call processing processor to which the signal point information is allocated, to the asynchronous transmission type switch matching module and from the call processing processor to which the signal point is assigned There is provided a relay call distribution processing method by signal point segmentation comprising a third step of setting a route to which a relay call message is transmitted to a power station.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same components have the same number as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related known technology may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a structural diagram of an ATM switch to which the present invention is applied. As shown in the figure, an ATM switch includes an ATM Switch Module (SFM) 101, and the SFM 101 is connected to an ATM Interface Module (AIM) 102.

A controller SubSytem (CSS) 103 of Main Processors (MPs) 104 that control the exchange function is connected to the matching device through multiplexing.

Meanwhile, the media gateway subsystem (MGS) 105 is matched by the N-ISDN network and the STM-1 class ATM link 106 by the time division multiplexing (TDM) E1 port 107. ). Each hardware component is controlled by the MPs 104, and the MP 104 is equipped with a signal protocol to be processed and a system and network management function to perform a switch function.

The call processing function is distributed and performed in multiple MPs 104 depending on the processor's capabilities. Therefore, for the efficient functioning of the exchange, a standard for function distribution is needed. Each physical port of the exchange is managed by one MP 104.

2 is a block diagram of a relay call processing-related functional block to which the present invention is applied. The operator system 201 external to the exchanger receives the operator's command and drives the command execution client and provides a HMI (Human Machine Interface) server 202 that provides a library related to input and output to the operator terminal and the signal network. An HMI client 203 is mounted that receives each command such as element creation / deletion / output and routing data generation / delete / output, requests corresponding functions in the system, and receives the response and controls the result processing.

The data construction system 204 for verifying and actually storing the input data for each input command includes a signal network data construction 206 for verifying and storing data such as signal points and signal links.

The data organizing system 204 also includes a routing data constructing unit 205 for verifying and storing routing data specifying the paths over which user data is to be transmitted.

The call processing processor 207 involved in the protocol and call processing necessary for relay call processing delivers the signal message received from the lower signal link to the user part, and selects the transmission signal link according to the signal network situation to select the signal message. Signal network processing unit 211 for transmitting.

In addition, the relay call processing unit 210 to perform incoming call processing and outgoing call processing through protocol processing such as ISUP (ISDN User Part), B-ISP (B-ISDN User Part), and incoming call processing. A number translation unit 208 for translating a destination number or an outgoing number to select a route to be forwarded, a routing unit 209 for selecting an available one of the routes to the next node during outgoing call processing, and a number translation A database 212 that stores data of signal network components, such as number data and routing data used in the case, is mounted in the call processing processor 207. In the call processing processor 207, a plurality of MPs 104 distributes the load according to their performance.

The matching module 213 is equipped with a signal link processing unit 214 for controlling the flow of signal messages in each of the signal channels for transmitting the signal messages.

The signal point segmentation according to the present invention allocates a processor to be controlled for each signal point code, and allocates all network component data such as signal link data and user routing data related to the signal point to the processor to which the signal point is assigned. Distributed processing.

The allocation of data per processor is performed by the data construction system 204, and the processing of the relay call by this data is actually performed in each call processing processor 207. FIG.

Detailed procedures regarding signal point processor assignment and processor-specific signal network component data allocation are described with reference to FIGS. 3 and 4A through 4C.

3 is a flowchart illustrating a signal point segmentation and signal network component data allocation procedure according to the present invention. As shown in the figure, the signal point processor is defined (S301), the signal link is generated (S303), and the route is generated (S305) to define the signal point processor and the signal link data related to the signal point for each signal point processor and User routing data is allocated to the signal point processor to perform relay call processing.

4A to 4C are detailed flowcharts of FIG. 3, and as shown in FIG. 4A, a signal point generation process S301 generates a signal point including a signal point code and a call processing processor number controlling the same as a parameter from an operator system. Beginning with receiving a command (S401). The signal point generation command is transmitted to the data construction system 204 through the HMI client 203, and the signal network data construction unit 206 of the data construction system 204 checks the available state of the input call processing processor (S403). If the processor is available, the signal point data is stored in the database 212 of the processor 207 (S405).

FIG. 4B is a detailed flowchart of the signal link generation process S303 of FIG. 3, in which a signal including a signal point code, a signal link code, and a port number to be used for the signal link from the operator system 201 as shown in the figure are parameters. When receiving the link creation command (S411), the HMI client 203 is transferred to the signal network data configuring unit 206, and the signal network data configuring unit 206 processes the process of FIG. 4A through the input signal point code. In step S413, the stored signal point call processing processor 207 is retrieved. When the signal point call processing processor 207 in which the input signal point is stored is found, the signal network data configuring unit 206 stores the signal link data in the database 212 of the call processing processor 207 (S415), and the signal link. The generation is notified to the signal network processing unit 211. The signal network processing unit 211 requests the signal channel setting of the signal link to the matching module 213 having the input signal link port (S417), and the signal link processing unit of the matching module 213 that receives the signal channel setting request ( 214 stores the signal link call processing processor 207 information included in the received signal channel establishment request message as signal link control processor information (S419).

FIG. 4C is a detailed flowchart of the route generation process S305 of FIG. 3. When a route generation command including a route number and a signal point code associated with the route is received from the operator system 201 as shown in FIG. S421), the route generation command is transmitted to the routing data configuration unit 205 through the HMI client 203, and the routing data configuration unit 205 stores the signal point call stored in the process of FIG. 4A through the input signal point code. The processing processor 207 is searched for (S23). When the signal point call processing processor 207 in which the input signal point is stored is found, the routing data configuration unit 205 stores the routing data in the database 212 of the call processing processor 207 (S425).

As described above, the network configuration data associated with the signal point is stored in the database of the call processing processor to which the signal point is assigned through the signal point generation (S301), the signal link generation (S303), and the route generation (S305). As a result, all network configuration data is distributed and stored in the plurality of call processing processors 207.

5 is a flowchart illustrating a relay call processing by signal point division according to the present invention. First, when the signal link processing unit 214 of the matching module 213 receives the incoming call related signal message (S501), the signal link stored in the signal link setting process (S303) of FIG. 4B in the signal link processing unit 214 is stored. Based on the information of the control call processing processor 207, a signal message is transmitted to the signal network processing unit 211 of the call processing processor 207. Accordingly, the signal link control call processing processor 207 receives the incoming call processing processor. The signal network processing unit 211 of the incoming call processing processor transfers the received signal message to the relay call processing unit 210 (S503). Accordingly, the relay call processor 210 of the signal link control call processing processor operates as an incoming call processor.

The incoming call processor requests the translation of the destination station number of the received signal message to the number translation unit 208 (S505), and the number translation unit 208 translates the destination station number and is included in the outgoing routing data and routing data. The call processing processor connected to the route is searched and notified as a result (S507). Therefore, the call processing processor connected to the route operates as an outgoing call processing processor.

The incoming call processing processor transmits a signal message to the relay call processing unit of the outgoing call processing processor obtained as a result of number translation (S509). Accordingly, the relay call processing unit of the outgoing call processing processor operates as the outgoing call processing unit.

When a signal message is received by the relay call processing unit block of the outgoing call processing processor, routing is requested to the routing unit 209 of the outgoing call processing processor as the input of the routing data obtained from the number translation result (S511), and the routing unit (S511). ) Searches for and selects sub routes and available channels in the corresponding route and notifies the outgoing call processor (S513).

The outgoing call processor transmits a signal message to the signal network processing unit 211 of the outgoing call processing processor, and the signal network processing unit 211 performs a database of the outgoing call processing processor in the signal link generation process (S303) of FIG. The signal link is selected based on the signal link data stored in 212 and the signal message is transmitted to the matching module 213 (S515). The signal link processing unit 214 of the matching module 213 that receives the signal message transmits the signal message to the corresponding signal link (S517).

Therefore, according to this flowchart, the function of each call processing processor enables incoming and outgoing call processing only with data allocated in the processor.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible in the technical field of the present invention without departing from the technical spirit of the present invention. It will be clear to those of ordinary knowledge.

The present invention enables the incoming or outgoing call processing without data reference of other processors using only the data configured in the processor to which the signal points are allocated in the structure of the signal points of the ATM switch, thereby simplifying the internal routing between each signaling message processing layer. It improves the reliability of the exchange operation and improves system reliability by minimizing the influence of other processors even when one processor fails during the function execution.

In addition, by minimizing the amount of data to be stored by distributing and storing signal points and related data for each processor, the exchange capacity can be improved, and the remaining memory is used in the relay call processor to improve system performance.

Claims (8)

In the distributed call processing method by signal point splitting in an asynchronous transmission switch in a distributed system environment having a plurality of call processing processors, Allocating signal point information to each of the plurality of processors; Allocating a signal link to which a relay call message is exchanged between a call processing processor to which the signal point information is allocated and an asynchronous transmission switch exchange matching module; And A third step of setting a route for transmitting a relay call message to a power station from the call processing processor to which the signal point is allocated; Relay call distribution processing method by signal point division comprising a. The method of claim 1, A fourth step of receiving a relay call message at the asynchronous transmission type switch matching module; A fifth step of transmitting the relay call message to a call processing processor to which a signal link is allocated in the second step; A sixth step of transmitting the relay call message to a call processing processor to which a route is assigned in the third step based on the called number included in the relay call message; And A seventh step of transmitting the relay call message through a call processing processor assigned the route and an asynchronous transmission method switch matching module assigned the signal link; Relay call distribution processing method by signal point segmentation further comprising. The method of claim 1, The first step is Receiving a signal point generation command including a signal point code and a call processing processor number controlling the signal point code as a parameter from an operator system; And A ninth step of storing the signal point code in a database of the call processing processor when the call processing processor of the input number is available; Relay call distribution processing method by signal point division comprising a. The method of claim 3, The second step is Receiving a signal link generation command including as a parameter a signal point code, a signal link code, and a port number to be used for the signal link from an operator system; An eleventh step of searching for a call processing processor stored in a database in the ninth step based on the received signal point code; Storing the signal link code in a database of the retrieved call processing processor; A thirteenth step of transmitting a signal channel setting request message of a signal link to an asynchronous transmission mode matching module having the input port number; And Step 14 of storing call processing processor information included in the signal channel establishment request message in the asynchronous transmission mode matching module; Relay call distribution processing method by signal point division comprising a. The method of claim 3, The third step is Receiving a route generation command including a route number and a signal point code connected to the route as a parameter from an operator system; A sixteenth step of searching for a call processing processor stored in a database in the ninth step based on the received signal point code; And A seventeenth step of storing the route number in a database of the retrieved call processing processor; Relay call distribution processing method by signal point division comprising a. The method according to any one of claims 2 to 5, The fifth step is Transmitting the relay call message received in step 4 to the call processing processor corresponding to the call processing information stored in step 14; Relay call distribution processing method by signal point segmentation characterized in that the. The method according to any one of claims 2 to 5, The sixth step An eighteenth step of translating the called station number included in the relay call message to search for a call processing processor storing the route number and the route number in a database in step 17; And A nineteenth step of transmitting the relay call message to the retrieved call processing processor; Relay call distribution processing method by signal point division comprising a. The method according to any one of claims 2 to 5, The seventh step A step 20 in which the call processing processor to which the route is assigned searches for sub routes and available channels in the assigned route; A twenty-first step of searching for an asynchronous transmission switch exchange matching module to which the signal link is allocated based on the signal link code stored in the database of the call processing processor to which the route is assigned; And Step 22, the searched asynchronous transmission mode matching module transmits the received relay call message to a corresponding signal link; Relay call distribution processing method by signal point division comprising a.