KR100391174B1 - Appararus And Method For Message Processing In Advanced Intelligent Network - Google Patents

Abstract

It is to optimize the generation of interprocessor communication signals and child processes generated in the process of call establishment and release in the information providing device of the next generation intelligent network, so that the performance of the system can be stably maintained even with a large number of call attempts.

The present invention is connected to the SSP through the MTP layer 3 protocol of the No.7 common line signaling interface to interface the call establishment / termination and the provision of the corresponding resources, and is connected to the SCP through the SCCP protocol to perform the data interface for intelligent network processing An MTP / SCCP processing unit, a subscriber processing unit which provides a special resource to a corresponding user side according to a call setup request, and establishes a call, an intelligent network processing unit which performs a transaction to a power station and question and answer processing of user data required by SCP; It is characterized in that it comprises a resource control unit for receiving the resources for the intelligent network call connection according to the call attempt message to notify the SCP side that the intelligent network call has occurred.

Therefore, even if a large number of call attempts occur simultaneously, generation of IPC and generation of child processes are suppressed, so that the performance of the system remains stable.

Description

Appararus And Method For Message Processing In Advanced Intelligent Network}

The present invention relates to an information providing system (Advanced Intelligent Network Of Intelligent Peripheral: hereinafter referred to as 'AINIP') of the next generation intelligent network, and more specifically, to generate the inter-processor communication signal and child process generated in the process of call setup and release The present invention relates to a message processing apparatus and method for a next-generation intelligent network that maintains a stable system performance even after a large number of call attempts.

In general, as shown in FIG. 1, the next-generation intelligent network system has service logic and data that manages the entire process of intelligent network service processing, and performs SCP (call control, service control, and database management functions). 200) and provide special information, which is a variety of information, to the SSP 300 and service users performing the exchange function and call control function, call control agent, service exchange and control function that connect the service user and the intelligent network. It is made of AINIP (100).

Each network element is connected through the No.7 common line method, and an application for supporting interaction between physical entities between SCP 200 and SSP 300 and between SCP 200 and AINIP 100 An INAP (Intelligent Network Application Protocol) message, which is a layer protocol, is transmitted and received, and an ISDN user part (ISP), which is an ISDN application protocol, and a voice channel are connected between the SSP 300 and the AINIP 100.

In the above, the AINIP 100 receives data such as a voice signal through a bearer channel, a dual tone multi frequency (DTMF) signal, and a modulated voice from a service user, and records the information through a bearer channel receiving the data to a service user. It performs broadcasting, stored voice, signal sound, and modulated voice transmission, and is in charge of protocol processing and fax document processing. The configuration is as follows.

As can be seen in Figure 2, AINIP (100) is a SRS (Specialized Resource) responsible for the interworking of the INAP through the SCP 200 and the No.7 common line signaling method and the interworking of the SSP 300, voice channels and ISUP Switch: 110), SRU (Special Resource Unit: 120) which provides special resources such as fixed and editable announcement and DTMF reception, speech synthesis, voice recording, and voice recognition, and operator matching interface function and measurement. It is composed of SRMP (Specialized Resource Main Processor: 130) which is responsible for statistics, database management, system operation, and fault handling.

As shown in the figure, the SRS 110 is a message processing block for processing an MTP protocol message of No.7 common line signaling and a signal connection control for processing an SCCP protocol message of No.7 common line signaling. Block, the Q & A application block for processing transaction messages, an application service element block, a single access control block, a multi-access control block, and an ISDN user block for processing announcements to intelligent network users, and the SRU 120 requests from the SCP. Operation processing block and SRF (Specialized Resource Function) service control block, resource state management block, resource function control block, resource-specific function interface block, DTMF collection block, announcement broadcast block, speech synthesis block, speech recognition Block and voice recording block, SRMP 130 is a GUI interface for operating AINIP to intelligent network service providers It consists of operator matching blocks that provide warnings, measurement and statistics blocks that process dozens of statistical data using various statistical items, system operation blocks, overload control blocks, fault handling blocks, and special resource maintenance blocks.

For call processing in AINIP of the next-generation intelligent network having the above-described configuration, a No 7 common line signaling method is used for transmitting call processing and data processing information by using a signal link configured separately from the ISUP and a communication line. And transmission of an initialization signal for interworking operation between SRS 110 in charge of interworking voice channel with SSP 300 and SRU 120 providing special resources according to call generation. In response to this, the status of the counterpart is checked and managed.

However, since any one side is in an abnormal state and attempts to initialize the signal a certain number of times and then time-out occurs, failure processing is performed. Therefore, when a specific process goes down for a long time over a set time, it causes many problems in synchronization between blocks.

In addition, when a call occurrence is detected through the SSP 300, the SRS 110, the SRU 120, and the SRMP 130 interoperate with each block for overall processing of the corresponding call through interworking. Since the in-child process and corresponding inter-processor communication signals are generated, there is a problem that the performance of the system is degraded when a large number of call attempts occur.

The present invention has been made in view of the above-mentioned general problems, and an object thereof is to improve system performance by optimizing generation of generated inter-processor communication signals and child processes for inter-block interworking during call establishment and termination. It was made to be.

1 is a diagram illustrating the basic concept of a general next-generation intelligent network.

2 is a block diagram of a system for providing information in a conventional next-generation intelligent network.

3 and 4 is a block diagram of a message processing apparatus of the next generation intelligent network according to the present invention.

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

510: MTP / SCCP processing unit 520: ISDN user interface unit

530: ISDN subscriber control unit 560: intelligent network application unit

570: question and answer processing unit 600: basic resource control unit

The present invention for achieving the above object is connected to the SSP through the MTP layer 3 protocol of the No.7 common line signaling interface to interface the call establishment / termination and the provision of the corresponding resources, and is connected to the SCP through the SCCP protocol MTP / SCCP processing unit that performs data interface for intelligent network processing, subscriber processing unit that sets up a call while providing special resources to the corresponding user side according to the call setup request, transaction to large country and user data required by SCP An intelligent network processing unit for performing the question and answer processing, and a resource control unit for notifying that the intelligent network call has been generated to the SCP by receiving the SRU resources for intelligent network call connection according to the call attempt message.

In addition, the present invention generates a process of extracting the telephone number of the subscriber to set up a call from the ISUP message received by the MTP layer 3 protocol, and a child process for performing a call process with the subscriber of the extracted telephone number And requesting resource and channel allocation, and generating a message notifying that the intelligent network call has occurred when the available channel is allocated and set up a call, and notifying the SCP.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As can be seen in Figures 3 and 4, the message processing apparatus of the next-generation intelligent network according to the present invention includes a block A for call processing between the MTP / SCCP processing unit 510 and a user and a block B for intelligent network processing (B). ) And the basic resource control unit 600.

The MTP / SCCP processing unit 510 is connected to the SSP through the MTP layer 3 protocol of No.7 common line signaling to perform an interface for setting / terminating a call with a user and providing the user with the resources requested by the user. .7 interface with SCP via common line signaling SCCP protocol to interface data transmission and reception for intelligent network processing.

Block (A) for call processing is a block for setting up a call for providing a special resource to a corresponding user side according to a call setup request of a subscriber station connected to the SSP. The ISDN user interface unit 520 and the ISDN subscriber control unit ( 530).

Block (B) for intelligent network processing is composed of an intelligent network application unit 560 for performing a transaction start and command execution with SCP and a question and answer processing unit 570 for performing question and answer processing of user data transmitted and received with SCP. .

The basic resource controller 600 analyzes the call attempt message of the ISDN user connected with the SSP, requests the SRU 120 for resources for the intelligent network call connection, and sends the intelligent network call to the SCP according to the resources provided from the SRU 120. Data processing for notifying of the occurrence is performed, and the SRU 120 accesses a corresponding resource in response to a request for announcement from the SCP, and is responsible for transmitting to the SSP through a call established channel.

In the present invention having the functions described above, operations for call setup and intelligent network processing are as follows.

As can be seen in Figure 3, according to the call setup request from the subscriber station, the ISUP message for the call setup to the MTP layer 3 protocol of the No 7 common line signaling method through the SSP (300) to the MTP / SCCP processing unit 510 When transmitted, the MTP / SCCP processing unit 510 extracts an IAM message, which is a message for a phone number that designates a party to be set up from an ISUP message from the SSP, to the ISDN user interface unit 520 of the call processing block (A). send.

The ISDN user interface unit 520 generates an Isup_Iam_Main signal, which is a message for requesting call setup with the ISDN user, upon transmission of the IAM message to the ISDN subscriber control unit 530, and the ISDN subscriber control unit 530 receives the received Isup_Iam_Main signal. In this case, one child process is generated for the corresponding call, and then the IPS_Iam_UP signal, which is a message requesting the ISDN user and call setup, is generated through the child process and transmitted to the basic resource controller 600.

The basic resource control unit 600 determines that the IP resource for the intelligent network call connection is required according to the IPS_Iam_UP signal requesting the ISDN user and call setup, and checks the state of the SRU 120 connected by TCP / IP. For the call, the SCFID and the Correlation ID are used to determine whether the service is available and to terminate the attempted call if the service is not available, and to inform the SCP that an intelligent network call has occurred if the service is available. By mapping, the IPS_AriRQ_PO signal is generated and then transmitted to the intelligent network application unit 560 of the intelligent network processing block B.

The intelligent network application unit 560 generates an IPS_TC_BEGr_OD signal, which is a message for requesting the start of a transaction, and an IPS_TC_INVr_EC signal, which is a message for requesting command execution to the SCP, according to the IPS_AriRQ_PO signal received from the basic resource controller 600, and the Q & A processing unit. 570 is transmitted to the side.

The question and answer processing unit 570 generates a NUDTreq_U2D signal, which is a message requesting the transmission of data to the SCP user, according to the received IPS_TC_BEGr_OD signal and the IPS_TC_INVr_EC signal, and transmits it to the MTP / SCCP processing unit 510.

Subsequently, the MTP / SCCP processing unit 510 that receives the PA message from the SCP through the SCCP protocol of the No. 7 common line method generates a NUDTind_D2T signal for transmitting the SCP user data received from the power to the corresponding user. 570), the question-and-answer processor 570 transmits each data to the IPS_TC_CONi_DO signal and the user requesting the use of the command resource received from the power to transmit the continuous transaction message resource received from the power to the user. Is generated as an IPS_TS_INVi_CE signal and transmitted to the intelligent network application unit 560.

The intelligent network application unit 560 generates an IPS_BasicVoicePaIND_OP signal that notifies the result of the announcement broadcast request command according to the reception of the IPS_TS_INVi_CE signal, and transmits it to the basic resource control unit 540, and the basic resource control unit 540 receives the IPS_BasicVoicePaIND_OP signal. Accordingly, the IPS_Anm_PU signal including the announcement request, the result of the IP resource request, and the response of the call attempt is generated and transmitted to the corresponding child process side of the ISDN subscriber controller 530.

When the child process of the ISDN subscriber control unit 530 generates and transmits the Isup_Anm_Msg signal, which is a response message for the call setup attempt, to the ISDN user interface unit 520 according to the reception of the IPS_Anm_PU signal, the ISDN user interface unit 520 After extracting the resource to be transmitted to the subscriber side from the received Isup_Anm_Msg signal, it processes the MTP layer 3 protocol using the NO.7 common line signaling method and transmits it to the subscriber station set up with the SSP through the MTP / SCCP processing unit 510. do.

In addition, the operation of call termination according to the request from the SCP in the state of call setup and intelligent network processing through the above process will be described with reference to FIG. 6.

If the request for termination of the call is set from the SCP, the SRU 120 and the basic resource controller 600 interworking with TCP / IP cancels the user call according to the termination of the intelligent network call to the ISDN subscriber controller 530 in charge of the corresponding channel. It generates and transmits the ISP_Rel_PU signal, which is a request message, and simultaneously generates and transmits the IPS_DialAbort_PO signal, which is a message for requesting to stop the transaction, upon termination of the intelligent network call.

Upon receiving the ISP_Rel_PU signal, the ISDN subscriber control unit 530 generates an Isup_Rel_Msg signal, which is a message requesting termination of ISDN user call, and transmits it to the ISDN user interface unit 520 and receives the IPS_DialAbort_PO signal. 560 generates an IPS_TC_U_ABOr_DT signal requesting the suspension of the transaction according to the termination of the intelligent network call, and transmits it to the question and answer processing unit 570.

The ISDN user interface unit 520 receiving the Isup_Rel_Msg signal notifies the termination of the call set up on the MTP / SCCP processing unit 510 side, and the answer processing unit 570 receiving the IPS_TC_U_ABOr_DT signal receives the NUDTreq_U2D to stop transmitting data to the SCP user. The signal is generated and transmitted to the MTP / SCCP processor 510.

Accordingly, the MTP / SCCP processing unit 510 transmits a signal received from the ISDN subscriber interface unit 520 in charge of call processing and the question and answer processing unit 570 in charge of intelligent network processing to the SSP and the SCP for the currently set call. Allow termination to be performed.

When the call termination procedure is performed by the above operation, it maintains another call setup and message transmission standby state.

As described above, the present invention reduces the load of the system by minimizing the generation of interprocessor communication signals and child processors for inter-block interworking when many call setup requests occur at the same time, thereby improving overall performance of the system.

Claims (2)

MTP / SCCP, which connects to SSP through MTP Layer 3 protocol of No.7 common line signaling method, interfaces call establishment / cancellation and provision of corresponding resources, and connects to SCP through SCCP protocol to perform data interface for intelligent network processing. A processing unit; A subscriber processing unit for providing a special resource to a corresponding user side according to a call establishment request and simultaneously setting up a call; An intelligent network processing unit which performs transaction to the country and question and answer processing of user data required by SCP; And a resource control unit which receives the resource for the intelligent network call connection according to the call attempt message and notifies the SCP side that the intelligent network call has occurred. Extracting a telephone number of a subscriber to be set up from an ISUP message received through an MTP layer 3 protocol; Generating a child process for performing call processing with the subscriber of the extracted telephone number and then requesting resource and channel allocation; And generating a message for notifying that the intelligent network call has occurred when the available channel is allocated and set up, and notifying the SCP of the next generation intelligent network.