KR0136522B1 - Intelligent Network Service Call Control Method for Advanced Intelligent Service Switch - Google Patents

Abstract

An object of the present invention is to provide an intelligent network call processing control method by designing an intelligent network service controller mounted in a highly intelligent network service exchange in a structure independent of a specific intelligent network service logic. In the present invention, the intelligent network service control unit interacts with the basic call processing matching unit, the DP processing unit, and the protocol processing unit. The procedure consists of seven procedures.

Description

Intelligent Network Service Call Control Method for Advanced Intelligent Service Switch

1 is a block diagram of an initial intelligent network service switch for intelligent network service call processing;

2 is a configuration diagram of an intelligent network service control unit.

3-1 is an operational flow diagram of a service interaction management process of an intelligent network service controller;

3-2 is an operation flowchart of the ISCP_Main process of the intelligent network service control.

The present invention is mounted on an AIN SSP (Advanced Intelligent Network Service Switching Point), and operates according to the configuration of an intelligent network service control unit that processes an intelligent network service call and manages interaction with other blocks adjacent to the inside of the service exchanger. It relates to an intelligent network call processing method comprising a.

In the initial intelligent network switch, the intelligent network service call as shown in FIG. 1 is provided to provide a free phone (FP) service, a credit call (CC) service, and a premium rate (PR) service. Signaling common to basic call processing interface (APC), free phone service control (FPSC), credit call service control (CCSC) and premium rate service control (PRSC) blocks of application processes (AP) (SS No. 27) Free Phone Operation Execution (EPOE) and FPDO (Free Phone Dialogue) of an Application Service Element (ASE) that processes services in a distributed environment using a connectionless network layer service in a signaling network Operation, Credit Call Operation Execution (CCOE), Credit Call Dialogue Operation (CCDO), Premium Rate Operation Execution (PROE), Premium Rate Dialogue Operation (PRDO) blocks, and questions and answers to perform question-and-answer functions It consists of Transaction Capabilities Application Part (TCAP).

Such a structure uses the lower layer below the Q & A application part for common line signaling as a common block, but there is a problem of reimplementing a service-specific application process and application service element whenever a new service is added. However, there is a disadvantage that it is impossible to quickly introduce various services desired by the communication user.

The highly intelligent network is a network structure that enables the rapid introduction of new services and is applicable to various types of communication networks. In other words, through the SSP which is a gateway of the intelligent network, the service logic and the database are accessed to access SCP, which is centralized, to provide various services. In the high-intelligence network, each service consists of a combination of service features, and one service feature consists of a service independent function block (SIB), and the SIB consists of several network elements, namely, SSP and Service Control (SCP). Point), support of a specific operation exchanged between Intelligent Peripherals (IP), and implementation of the operation.

Accordingly, an object of the present invention is to provide a method for controlling an intelligent network call processing by designing an intelligent network service controller mounted in a highly intelligent network service exchange in a structure independent of specific intelligent network service logic.

In order to achieve the above object, the present invention provides an intelligent network service call control method for an intelligent network service switch having a service interaction management means and an intelligent network service main control means. When receiving the call control request operation, the first step of checking the DP type and notifying the corresponding intelligent network service call processing request and the event to the intelligent network service main control means, the bearer channel connection and disconnection request from the intelligent network service main control means, EDP A second step of receiving and processing any one of a creation request and a call processing response operation; and when the intelligent network service Jeju means receives an intelligent network service call processing request from a service interaction management means, a protocol processing unit sends an intelligent network service logic of the call. The third step of unevenness to drive the After performing the third step, the fourth step of receiving and processing any one of the IP connection request operation, the event notification request operation, the billing operation from the protocol processing unit, and after performing the fourth step, the call blocking operation from the protocol processing unit A fifth step of receiving and processing a call processing response operation; and a sixth step of forming and transmitting a corresponding operation to a protocol processing unit when an event notification or call termination is requested from the service interaction management means after performing the fourth step. Include.

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

2 is a diagram illustrating an intelligent network service control unit 3 and a basic call processing matching unit 1, a DP processing unit 2, a non-intelligent network service processing unit 6, and a protocol processing unit that occur during the configuration and call processing of the intelligent network service control unit 3. (7) shows the interaction between them.

When the basic call processing matching unit 1 is informed that the call has occurred from the basic call processing unit, the intelligent network service call is distinguished from the non-intel network service call. In the case of an intelligent network service call, the DP processing unit 2 is driven for each call-ID, which is a unique number for identifying the corresponding call, to request DP processing. The DP processing unit 2 performs a DP generating function and a DP processing function.

DPs are classified into four types (TDP-R, TDP-N, EDP-R, and EDP-N) according to the call control method. TDP is created by the network operator according to the service provisioning procedure when introducing a new service into the SSP. TDP information (DP number, control method, trigger condition) is managed by basic call processing matching unit 1 for each service, EDP is generated by request of SCP, and EDP information is managed by DP processing unit 2 by CaLL_ID. do.

The intelligent network service controller 3 provides an interaction mechanism between the non-intelligent network service and the intelligent network service logic, manages the BCSM state of the called party, and interacts with the intelligent network elements through the protocol processor 7 to process the intelligent network service operation. Perform The intelligent network service control unit 3 is composed of three processes and seven procedures, each of which is described in detail as follows.

Service Interaction Management Process (4)

The process of receiving the processing request of the non-intelligence network or intelligent network service received from the basic call processing matching unit 1 or the DP processing unit 2 to activate the appropriate service logic, and 3, the process of managing the BCSM state of the call using the DP number and leg_ID. to be. Upon receiving the request 17 for the non-intelligent network service call, the LEG_Info_Nng procedure 9 is called to allocate the leg_ID to manage the BCSM state for the call, and the service processing request operation 18 to the non-intelligent network service processing unit. Send. Upon receiving the event notification / call control request operation 20 from the DP processing unit 2, the IN_Service_Handling procedure 8 is called to check the DP type and the intelligent network service access number to activate the appropriate intelligent network service logic. If the DP Type is TDP_R, the ISCP_Main process (5) is run to process the new intelligent network service call, and the SCP incoming information and intelligent network service with the corresponding intelligent network service logic generated by the service provisioning procedure (16) are currently available. The status of a resource is queried and an intelligent network service request operation 19 is formed and transmitted to the ISCP_Main process 5, and the LEG_Info_Mng procedure 9 is called to assign leg_ID.

ISCP_Main process (5)

When the intelligent network service call processing request 19 is received from the service interaction management process 4, it is generated in one cal base and terminates when the intelligent network service call is abnormally terminated or normally disconnected. The ISCP_Main process (5) that received the request for intelligent network service call calls the Call_Handling procedure (10), and the SCP, such as BCSM status, leg_ID, input information collected from the caller, calling terminal information, and available resource information, is loaded with the intelligent network service logic. Information necessary to perform the SSP_To_SCP operation 25 is formed and transmitted to the protocol processing unit 7. Upon receiving the SCP_To_SSP operation 26 requesting connection with the IP (Intelligent Peripheral) to collect additional information from the protocol processing unit 7, the User_Interaction_Handling procedure 11 is called to execute the connection request SSP_To_IP operation 27 with the IP. And transmits to the protocol processing unit 7 and receives the connection acceptance IP_To_SSP operation 28, requesting the service interaction process 4 to connect the bearer channel with the calling party and the IP. If the bearer channel connection is successful, IP connection success SSP_To_SCP operation 25 is transmitted to the protocol processing unit 7 to collect additional information from the calling party under the control of SCP. When the Call_Gap request SCP_To_SSP operation 26 of SCP is received from the protocol processing unit 7, the Traffic_Mng procedure 12 is called to transmit the call blocking information to the Traffic_Data_Handling process 15 for storage. Upon receiving the intelligent network service call processing request operation requesting the event notification from the service interaction processor 4, the call_Rrport procedure 14 is called to generate the BCSM Event notification SSP_To_SCP operation 25 to the protocol processing unit 7. Send. When the charging SCP_To_SSP operation 26 is received from the protocol processing unit 7, the charging procedure 13 is called to form an operation for driving the charging logic of the corresponding call according to the received charging form, and transmits it to the service interaction process. .

Traffic_Data_Handling Process (15)

After the call blocking information is stored in the database according to the request of the ISCP_Main process (5), the timer is started to automatically delete the call blocking information after the call blocking time has elapsed.

In_Service_Handling procedure (8)

Searching for incoming information, accessible status of SCPs with intelligent network service logic, and information on available resources of intelligent network service exchangers to form intelligent network service call processing operations and provide interaction mechanism between intelligent network service and non-intelligent network service logic. Is a procedure.

LEG_Info_Mng procedure (9)

It is a procedure to manage call processing and connection status of called party by allocating and releasing leg_ID according to BCSM status of corresponding call using received DP number.

Call_Handling Procedure (10)

Intelligent network service call processing response that forms SSP_To_SCP operation requesting intelligent network service call processing using call information received from service interaction management process, and decodes SCP_To_SSP operation for intelligent network service call processing request and sends it to service interaction process A procedure that forms an operation.

User_Interaction_Handling Procedure (11)

SSP_To_SCP operation by decrypting the SCP_To_SSP operation sent by SCP to interact with the service consumer using the resources held by the IP to form the SSP_To_IP operation, and decrypting the IP_To_SSP operation sent by the IP to pass the information collected from the service consumer. Procedure to form

Traffic_Mng procedure (12)

Called when the ISCP_Main processor receives a call request from the SCP for decryption of the call, and decodes the received operation to store blocking information such as control number, blocking time, and blocking period in the database, and upon request of the ISCP_Main process. Procedure to retrieve blocking information.

Charing procedure (13)

Called when a charging operation is received from the SCP in the ISCP_Main process. This procedure is used to decode the received operation to determine the charging type and to drive the charging logic.

* Call_Report procedure (14)

Called when the ISCP_Main process receives a reference requesting an Evnt notification from SCP or receives an Event notification operation from a service interaction process. It is a procedure that decodes the received operation and forms an event notification request or an event notification operation. .

3-1 shows a call processing process of a service interaction management process in an intelligent network service controller.

When receiving the non-intelligent network service call processing request operation from the basic call processing matching unit (31), the leg_ID is allocated 32 to manage the state of the call, and the service processing request operation 33 is transmitted to the non-intelligent network service processing unit.

When receiving the event notification / call control request operation 34 from the DP processing unit, the DP type is checked (35), and if TDP_R, the intelligent network service access code and information (IN service) of the SCP holding the corresponding service logic are detected. (36) If the SCP can request to provide the intelligent network service, the ISCP_Main process is run to transmit the intelligent network service call processing request operation (37), and the leg_ID is assigned to manage the call state (38).

If the SCP cannot provide the intelligent network service, the DP processing unit notifies the DP processing that the DP processing has failed (42). If it is not TDP_R, if the state of the corresponding call can be checked (39) and the event can be notified to the event by the SCP, the ECPent notification request operation is transmitted to the ISCP_Main process (40) and the state of the corresponding call is stored (41) using the DP number. Upon receipt of the call termination notification operation 43 from the DP processing unit, the state of the call is initialized, the allocated leg_ID is released (44), and the ISCP_Main process is informed that the call is terminated (45).

Upon receiving the bearer channel connection request operation with the IP from the ISCP_Main process (46), the bearer channel is connected through the interaction with the basic call processor (47). If the connection is successful, the success response operation for the connection with the IP to the ISCP-Main process is performed. (48) and manage the connection with the IP by assigning leg_ID (49). If the connection is unsuccessful, the ISCP_Main process sends a failure response operation for the connection with the IP (50).

Upon receiving a bearer channel release request operation with the IP from the ISCP_Main process (51), the bearer channel is released (52) through interaction with the basic call processing unit, and the leg_ID allocated to manage the connection state with the IP (53). do. When receiving an operation 54 requesting to generate a specific DP from the ISCP_Main process to the EDP (54), the operation is transmitted to the DP processing unit (55) to request the EDP generation. Upon receiving the response operation 56 for the intelligent network service call processing request from the ISCP_Main process, the call control response operation is transmitted 57 to the DP processing unit under the control of the SCP.

3-2 shows the call processing of the ISCP_Main process in the intelligent network service controller.

When the ISCP_Main process receives an intelligent network service call processing request from the service interaction process (61), it calls the Call_Handling procedure to form an operation (62) requesting the SCP to run the intelligent network service logic of the corresponding call and transmits it to the protocol processing unit. (63).

When receiving an operation requesting connection with an IP to collect additional information from the protocol processor (64), a connection request operation for transferring to the IP is formed by calling the User_Interaction_Handling procedure (65) and transmitted to the protocol processor (66). . Receives a connection response with the IP from the protocol processor (67) and if the result is successful, instructs the service interaction process to connect the bearer channel (68), and if the bearer channel is connected, informs the SCP that the connection with the IP is successful. An operation is sent to the protocol processing section 69 to wait for an interaction command with the IP. If the connection with the IP fails, an operation (70) is sent to the protocol processing unit informing the SCP that the connection with the LP has failed. When the connection with the IP is successfully received and receives an operation for requesting additional information or an announcement of the SCP (90, 96), the user_interaction_handlding procedure is called to form the SSP_To_IP operation (91, 97) and transmitted to the protocol processor (92, 98). do.

In the case of collecting additional information, when receiving the IP_To_SSP operation including the additionally collected information from the service user (93), the SSP_To_SCP operation is formed (94) and sent to the protocol processing unit (95). Upon receiving the SCP_To_SSP operation requesting the release of the IP from the protocol processing unit (99), the SSP_To_IP operation is formed (100) and transmitted to the protocol processing unit (101), and the service interaction process requests 102 to release the bearer channel. .

Upon receiving the SCP_To_SSP operation requesting to notify the event from the protocol processing unit (71), the Call_Report procedure is called to form (72) an EDP generation request operation and sent to the service interaction process (73). Receiving a charging operation 74 requesting the charging process 74 invokes the Charging procedure to form an operation to drive the charging processing service logic (75) to send (76) to the service interaction process.

Upon receiving the SCP_To_SSP operation requesting the call blocking for the call requesting a specific intelligent network service from the protocol processor (77), the Traffic_Mng procedure is called to transmit the call blocking information to the Traffic_Data_Handling process (78). When the response operation of the SCP for the intelligent network service call processing request is received (79) from the protocol processing unit, the Call_Handling procedure is called to analyze the result.

If the result of the call processing request is successful, an intelligent network service call processing success response operation indicating the basic call processing method is formed (80) and transmitted to the service interaction process (81). An operation that informs the result is formed (82) and sent (83) to the service interaction process. Receiving an operation indicating that an event has occurred from the service interaction process (84), the Call_Report procedure is called to form an event notification operation (85), transmitted to the protocol processing unit (86), and received an operation indicating that the call has ended. (87), the call_Handling procedure is called to form 88 an operation for notifying the end of the call to the SCP (88), transmitted to the protocol processing unit (89), and the process ends.

As described above, the present invention transmits the intelligent network service request to the SCP in the process of designing the structure of the highly intelligent network service exchanger having an independent structure for various types of service logic, so that the service logic instance can control the multiple intelligent network. By implementing an intelligent network service controller that controls the interaction between the service logic or between the non-intelligent network service logic and the intelligent network service logic, it has the effect of providing more various services to the user and quickly introducing new services into the network.

Claims (14)

In an intelligent network service call control method for an intelligent network service exchanger having a service interaction management means and an intelligent network service main control means, when the service interaction management means receives an event notification and call control request operation from a DP processing unit, the DP type is configured. A first step of notifying the intelligent network service call processing request and the event to the intelligent network service main control means, and requesting any one of a bearer channel connection and disconnection request, an EDP generation request, and a call processing response operation from the intelligent network service main control means. A second step of receiving and processing, and a third step of, when the intelligent network service main control means receives an intelligent network service call processing request from a service interaction management means, requests a protocol processor to drive the intelligent network service logic of the call; After the third step, the protocol processing unit A fourth step of receiving and processing any one of an IP connection request operation, an event notification request operation, and a charging operation; and a fifth step of receiving and processing a call blocking operation or a call processing response operation from a protocol processing unit after performing the fourth step. And a sixth step of, after performing the fourth step, receiving an event notification or call termination from the service interaction management means, forming and transmitting a corresponding operation to a protocol processing unit. Intelligent network service call control method. The method of claim 1, wherein the first step comprises: a seventh step of checking a DP type when the service interaction management means receives an event notification and call control request operation; Step 8 of transmitting the intelligent network service call processing request operation when detecting the information of the SCP having the service access code and the corresponding service logic and requesting the provision of the intelligent network service to the SCP; If it is not TDP_R, the state of the call can be checked and the event can be notified to the SCP. The advanced intelligent network service comprises the step 9 of transmitting an Ebent notification request operation and storing the state of the call using the DP number. Intelligent network service call control method for exchange. The advanced intelligent network service switch according to claim 1, further comprising a seventh step of managing the call status and notifying the call termination when the service interaction management means receives the call termination notification operation in the first step. Intelligent network service call control method. The method of claim 1, wherein when the bearer channel connection request is received from the intelligent network service main control means in the second step, connecting a bearer channel and determining whether the connection is successful; If it is determined that the connection is successful, the controller notifies that the intelligent network service is connected to the main control means, and the eighth step of managing a call state and the determination result of the seventh step, if the connection is not successful, fails to connect to the intelligent network service main control means. Intelligent network service call control method for an intelligent network service exchange, comprising the ninth step of notifying. 2. The intelligent network service call control method according to claim 1, wherein upon receiving the bearer channel release request from the intelligent network service main control means, the bearer channel is released and the call state is managed. 2. The intelligent network service call control method according to claim 1, wherein the EDP generation request operation is transmitted to a DP processing unit when receiving the EDP generation request from the intelligent network service main control means in the second step. The advanced intelligent network service exchange as claimed in claim 1, wherein the second step transmits a call control response operation to a DP processing unit when receiving the call processing response operation for the intelligent network service call processing request from the intelligent network service main control means. Intelligent network service call control method. The method of claim 1, wherein when the IP connection request is received from the protocol processor in step 4, a connection request operation for transferring to the IP is formed, transmitted to the protocol processor, and a connection response with the IP is received from the protocol processor. If is successful, the seventh step of instructing 68 to connect the bearer channel to the service interaction process; and if the bearer channel is connected, send an operation notifying the SCP that the connection with the IP is successful to the protocol processing unit and interacting with the IP. The eighth step of waiting for the action command, the ninth step of forming an SSP_To_IP operation and sending it to the protocol processing unit when the connection with the IP is successfully received and the request for additional information of the SCP or an announcement service is provided; SSP_To_SC upon receiving an IP_To_SSP operation with additional information collected from the consumer Forming a P operation and sending it to the protocol processing unit; and receiving an operation requesting release of the IP from the protocol processing unit, forming an SSP_To_IP operation and transmitting it to the protocol processing unit, and requesting to release the bearer channel by the service interaction process. Intelligent network service call control method for an intelligent network service exchange, comprising the eleventh step. The method according to claim 1, wherein in the fourth step, upon receiving an operation requesting notification of an event from the protocol processing unit, an EDP generation request operation is formed and transmitted to the service interaction process. Intelligent network service call control method. The advanced intelligent network according to claim 1, wherein upon receiving the charging operation requesting the charging processing from the protocol processing unit in the fourth step, an operation for driving the charging processing service logic is formed and transmitted to the service interaction process. Intelligent network service call control method for service exchange. The method of claim 1, wherein in the fifth step, upon receiving an operation for requesting call blocking for a call requesting a specific intelligent network service, the call blocking information is transmitted to the corresponding process for management. Intelligent Network Service Call Control Method for Advanced Intelligent Service Switch. The method of claim 1, further comprising: analyzing a result of the SCP response to the intelligent network service call processing request from the protocol processor in step 5; analyzing the result; and, if the result of the processing request is successful, the basic call processing method. An eighth step of forming an intelligent network service call processing success response operation indicating that the message is sent to the service interaction process; and if the result of the processing request is unsuccessful, forming an operation informing the failure result and sending it to the service interaction process. An intelligent network service call control method for an advanced intelligent network service exchange. The intelligent network service call for an advanced intelligent network service exchange according to claim 1, wherein when an operation indicating that an event has occurred is received from the service interaction process in step 6, an event notification operation is formed and transmitted to the protocol processing unit. Control method. The advanced intelligent network according to claim 1, wherein in step 6, upon receiving an operation indicating that the call has ended from the service interaction process, an operation for notifying the end of the call is formed by the SCP and transmitted to the protocol processing unit, and the process is terminated. Intelligent network service call control method for service exchange.