KR20000045811A - Method for managing states using state messages in intelligent network - Google Patents

Abstract

PURPOSE: A method for managing states using state messages in the intelligent network is provided to perform the state management by analyzing a SSP(Service Switching Point) state message for events generated during the protocol execution in each physical entity and a SCP(Service Control Point) state message transmitted the SCP. CONSTITUTION: A protocol structure of a SSP(30) and a SCP(40) in the intelligent network is comprised of an INAP(Intelligent Network Application Protocol)(31,41), a TCAP(Transmission Control Application Part)(32,42), a SCCP(Signaling Connection Control Part)(33,43) and a MTP(Message Transfer Part)(34,44) respectively. The INAP(31) comprises a state management block to manage the state of the SSP(30) and SCP(40) as the higher level application layer protocol of the TCAP(32) to support the interaction between physical entities(SSP.SCP).

Description

State Management Method Using Status Message in Intelligent Network

The present invention relates to a state management method using a state message in an intelligent network. In particular, the state management is performed by analyzing a state message about an event occurring during protocol execution in each physical entity and a state message transmitted from a power station. The present invention relates to a state management method using status messages in an intelligent network.

Conventionally, in order to add a new function or introduce a new service to the exchange, the hardware and software of the exchange had to be changed considerably, which requires a lot of time and money. Is to be separated separately and implemented in general-purpose hardware and software to reduce the time and cost of designing and implementing new services in the exchange, and to provide services more efficiently. The intelligent network is built in general hardware and software environment, and the latest technology can be quickly introduced in accordance with the rapidly developing computer technology to facilitate the performance improvement of the exchange.

As shown in FIG. 1, the service processing structure of the general intelligent network includes a service control system 11 having a network-level service control logic (hereinafter, referred to as an 'SCP') and an existing service control system. It consists of a number of service exchangers (12-1 ~ 12-n, Service Switching Point; hereinafter referred to as 'SSP') which adds a function for connecting to the SCP at the exchange.

The SCP 11 performs service control logic according to a service processing request so that each SSP 12-1 to 12-n can perform service call processing, and provides subscriber data information and service processing response.

The SSP 12-1 to 12-n recognizes a call requiring an intelligent network service among the call from the subscriber, requests the necessary control information, that is, service processing to the SCP 11, and uses the subscriber when the information arrives. As an intelligent network switch that performs the desired service, it plays the role of gateway that connects existing telephone network and service network.

The intelligent network call processing operation in the intelligent network configured as described above is as follows.

First, when a service subscriber attempts an intelligent network service, the corresponding SSPs 12-1 to 12-n analyze this to determine whether intelligent network service control is necessary.

If the call received from the service subscriber needs intelligent network service control, the SSP 12-1 to 12-n transmits the service request query to the SCP 11, and the service processing response from the SCP 11 is received. The call proceeds according to the service logic program.

However, if it is determined that the intelligent network service control is not necessary, the corresponding SSPs 12-1 to 12-n proceed with the call according to their basic call processing procedure.

At this time, a call requiring a service request query to SCP 11 during a call processing process of the corresponding SSPs 12-1 to 12-n is called an intelligent network call, and the SSP is connected to SCP 11 to perform an intelligent network service. Ask a question and get a response.

That is, the SSP 12-1 to 12-n analyzes and investigates a call requesting a service from a subscriber and requests SCP 11 for call control information necessary for processing an intelligent network service when it is recognized as a call requesting an intelligent network service. Then, the subscriber uses the response information to perform the call service desired by the subscriber. At this time, the SSPs 12-1 to 12-n collect various kinds of voice guidance functions and additional digit information for efficient intelligent network service performance. For communication with intelligent networks, MTP (Message Transfer Part), SCCP (Signaling Connection Control Part), TCAP of No.7 signaling method that can handle protocol with signaling network The processing power of (Transmission Control Application Part) is required.

On the other hand, before sending any query from the corresponding SSP 12-1 to 12-n to SCP 11, the state (i.e., the state in which the service is able to perform the service or the service cannot be performed) At the same time, it is necessary to know the status of the self-station (SSP), where knowing the state of the self and the power does not simply end in knowing the state, but communicates this state information to other application blocks. This is very important because it allows you to take appropriate action.

Therefore, in the past, the state management block that manages the state of the host and the state has received and processed a state related message from the power station about whether to establish a connection with the power station through the TCAP of the own station and whether congestion has occurred. In this case, when receiving information indicating that the connection with the power was disconnected, for example, it was not possible to know why the connection with the power was lost.

As described above, in the conventional intelligent network, there is a problem that only the state management of the power station can be established and released using the state related message transmitted from the power station, and the state of the home station is not monitored. Therefore, when a problem occurs in the network, it is a problem that takes a long time to determine whether the problem occurred in a large country or a domestic problem.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object thereof is to monitor a state change of its own station in each physical entity performing the same protocol in an intelligent network, to transmit a corresponding own state message, and to process a message from a large power station. By transmitting the status message including the reason for the failure, it is possible to efficiently perform the status management for the own country and the power, and at the same time, it is possible to perform a quick response when a problem occurs in the intelligent network.

1 is a diagram illustrating a general intelligent network service processing structure.

2 is a diagram illustrating a protocol structure of SSP and SCP in an intelligent network according to the present invention.

Explanation of symbols on the main parts of the drawings

30: SSP 31, 41: INAP

32, 42: TCAP 33, 43: SCCP

34, 44: MTP 40: SCP

According to an aspect of the present invention, there is provided a state management method using a local state message in an intelligent network, including: generating a corresponding local state message according to a change of state of a local station; Transmitting the own station status message to a state management block and analyzing the received own station status message to check a state change of the own station; And providing the own state information to the corresponding application block according to the checked result.

According to another aspect of the present invention, there is provided a state management method using a power state message in an intelligent network including a plurality of physical entities performing the same protocol, the method comprising: transmitting and receiving a query and a response message with the power station; Receiving a state message including a reason for not being able to process the message together with the message from the power station; Analyzing the transmitted state message and checking the state change of the country; And providing the state information to the corresponding application block according to the checked result.

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

In the intelligent network according to the present invention, the protocol structure of the SSP and SCP is shown in the accompanying drawings, as shown in FIG. 2, an INAP 31, 41, an intelligent network application protocol, an TCAP 32, 42, and an SCCP. (33, 43) and MTP (34, 44), when describing the protocol structure of the SSP (30), the corresponding INAP (31) to support the interaction between physical entities (SSP, SCP) An application layer protocol above the TCAP 32, which includes a state management block for managing the states of the local station (SSP) and the large station (SCP).

Referring to the own station state management operation in the SSP 30 performing such a protocol is as follows.

First, the TCAP 32 transmits its own status message for managing its own status to the status management block of the INAP 31. SCCP restart information is transmitted from the SCCP 33 or the corresponding SCCP (33) monitors the local station status information on whether the connection establishment or disconnection with the corresponding SCCP 33 occurs or the state of the SCCP 33 is in the Active state or the Standby state. Process Message) is used to transfer to the state management block of the INAP 31, but includes different identification values according to each event.

Therefore, when the state management block of the INAP 31 receives the own status message using the IPM from the TCAP 32, the state management block analyzes the corresponding own status message to determine whether it is restarted, that is, whether the SCCP 33 is restarted, or the SCCP 33. After checking the state of the connection state and whether the SCCP 33 is activated or not, and providing the corresponding station state information to the corresponding application block according to the result of the check, it is possible to immediately respond to the change of state of the own station.

On the other hand, the operation state management operation in the SSP (30) is as follows.

The SSP 30 monitors the status of the SCP 40 by sending and receiving a general status message through the No. 7 common line signaling network with the SCP 40, wherein the status message includes a specific subsystem (application service). Element state) (N_State request) sent from the TCAP 32 of the SSP 30 to the power station (SCP) to inform the status of the state, and a specific subsystem of the power station (SCP) to inform the state of its own. State message (N_State indication) and the status message transmitted to inform the status of the MTP (44) and SCCP (43) of the large station (SCP), that is, whether the corresponding SCCP (43) is in operation and whether it is congested N_PCState indication).

The above-described status message is transmitted to the state management block of the INAP 31, and the state message transmitted from the corresponding state management block is analyzed to confirm the state change of the power station (SCP), and then the corresponding application block is determined according to the checked result. By providing power status information, it is possible to immediately respond to changes in the status of the power.

On the other hand, during the processing of messages related to queries and responses between the SSP 30 and the SCP 40, when a message cannot be processed by the SCP for some reason, that is, an invalid address (subsystem that does not exist) If the message contains information or if there is congestion in the destination subsystem, or if there is a problem with the processing of the SCCP 43 or MTP 44, the SCCP 43 of that station (SCP) will send the message along with the transmitted message. The N_Notice indication including the reason for not handling the message is transmitted to the MTP 34, SCCP 33 and TCAP 32 of the SSP 30 through the MTP 44 and the No. 7 common line signaling network. The TCAP 32 transmits the transmitted power status message to the state management block of the INAP 31.

Then, the state management block of the corresponding INAP 31 analyzes the transmitted state message and checks the state of the country, and then provides the corresponding country state information to the corresponding application block according to the result of the check. Correspondence becomes possible.

As described above, by monitoring the status of the own station in the SSP 30 switch of the intelligent network, it is possible to know whether the problem occurred during the processing of the service occurred in the own country or in the large country, and the state of the corresponding power is more detailed. In other words, by analyzing the state message including the reason that the message can not be processed from the country to perform the state monitoring, it is possible to perform effective state management in the SSP (30).

On the other hand, this state management operation in the intelligent network is equally applicable to each physical entity that performs the same protocol as the SSP 30, that is, SCP 40 or IP (Intelligent Peripheral), The same operation can be performed in each physical entity to effectively manage the state of the own station or the large station.

As described above, the present invention receives a corresponding state message by monitoring the state change of the own station in each physical entity performing the same protocol in the intelligent network, and transmits the power state message including the reason why the message cannot be processed from the power station. By doing so, it is possible to efficiently perform state management for the own country and the large country, and at the same time, it is possible to perform a quick response when a problem occurs in the intelligent network.

Claims (2)

In the state management method using the own state message in the intelligent network, Generating a corresponding own status message according to a change of the own status of the own station; Transmitting the own station status message to a state management block and analyzing the received own station status message to check a state change of the own station; The state management method using the status message in the intelligent network, characterized in that it comprises the step of providing the local state information to the corresponding application block according to the confirmed result. In the state management method using the power status message in an intelligent network including a plurality of physical entities performing the same protocol, Transmitting and receiving a message related to a query and a response to a power station; Receiving a state message including a reason for not being able to process the message together with the message from the power station; Analyzing the transmitted state message and checking the state change of the country; The state management method using the status message in the intelligent network, characterized in that it comprises the step of providing the state information to the corresponding application block according to the confirmed result.