KR100507695B1 - Intelligent Triggering Method in Mobile Communication Packet Switching System - Google Patents

Abstract

The present invention relates to an intelligent network triggering method in a mobile communication packet switching system. In particular, unlike an existing intelligent network service for each subscriber, the intelligent network information is managed and processed to provide various intelligent network services to subscribers. The present invention relates to an intelligent network triggering method in a mobile communication packet switching system.

An intelligent network triggering method in a mobile communication packet switching system according to an embodiment of the present invention includes an access point name included in a packet call attempt message from a mobile station (MS) and an intelligent network of a system unit stored in a serving GPRS support node (SGSN). Comparing the access point names included in the information; If the access point name included in the packet call attempt message and the access point name included in the intelligent network information of the system unit stored in the SGSN match, the SGSN sends a message including detailed information about the call of the system unit to the SCP ( Service control point); And performing the intelligent network service based on the message received by the SCP.

Description

Intelligent Triggering Method in Mobile Communication Packet Switching System

The present invention relates to an intelligent network triggering method in a mobile communication packet switching system. In particular, unlike an existing intelligent network service for each subscriber, the intelligent network information is managed and processed to provide various intelligent network services to subscribers. The present invention relates to an intelligent network triggering method in a mobile communication packet switching system.

Conventionally, when an operator wants to provide a new or added communication service, an application block of an exchange system has been modified and provided. However, since the switching system is not easy to modify the program, there are many limitations in providing a new service.

In order to solve this problem, the concept of intelligent network was introduced, and the basic method is to classify calls to receive intelligent network service in exchange system and provide information about the call to SCP, and SCP provides Based on the information, it controls the call progress, the characteristic change, and the incoming / released to the new destination.

Here, the SCP executes the actual service logic, the exchange system must not know what service is being performed, only the call control is manually performed by the SCP, and the SCP executes the service logic so that the SCP program can be provided when additional services are provided and changed. Only modifications can be provided. That is, the exchange system is responsible for triggering the intelligent network by providing the intelligent network service of the call and providing information to the SCP.

On the other hand, the conventional code division multiple access (WCDMA) system is provided with an MS 1, SGSN 2, SCP 3, GGSN 4, and HLR 5, as shown in FIG.

The HLR 5 stores subscriber information, and the subscriber information includes information on what additional services the subscriber is receiving and what intelligent network services.

When the subscriber receives the intelligent network service, the subscriber information of the HLR 5 includes General Packet Radio Service CAMEL Subscription Information (GPRS_CSI) information (hereinafter referred to as "subscriber intelligent network information"). When attempted, the HLR 5 is responsible for transmitting subscriber information including subscriber network information to the SGSN 2.

Here, the intelligent network information for each subscriber includes the intelligent network service number and the SCP address, as shown in Table 1.

data Explanation Service key Intelligent network service number SCP Address SCP address to handle intelligent network service

If the HLR's subscriber information includes a CSI, that CSI contains the service key and SCP address. The inclusion of subscriber information in the HLR means that control must be obtained from the SCP.

The SGSN 2 receives and stores subscriber information including subscriber-specific intelligent network information from the HLR 5, and when the MS 1 attempts to make a packet call, the SCPN 3 includes detailed information on the subscriber-specific call. Send a message that says The message including detailed information on the call for each subscriber includes an address that the subscriber wants to access, that is, an access point name. The access point name is an Internet site such as "www.chosun.com". Upon receipt of a message containing detailed information on the subscriber-specific call, the SGSN (2) requests the GGSN (4) to create a PDP context in order to associate the subscriber call with an Internet site such as "www.chosun.com". Send a message.

The GGSN 4 receives the PDP context creation request message from the SGSN 2 and prepares for connection with the Internet network, and then transmits the PDP context creation response message to the SGSN 2.

The SCP (3) receives a message containing detailed information about the call from the SGSN (2), analyzes the information of the message, and performs the appropriate intelligent network service. At this time, SCP (3) sends a message to the SGSN (2) for various types of intelligent network service to connect the call to a new access point name, to simply proceed with the call, or to terminate the call, etc. Perform control.

An intelligent subscriber network service method in a conventional WCDMA system is described below with reference to the scenario of FIG.

First, when the MS 1 attempts to register a location in the SGSN 2 (step S21), the SGSN 2 requests the subscriber information to the HLR 5 in which the subscriber information is stored (step S22). Accordingly, the HLR 5 transmits subscriber information to the SGSN 2 (step S23).

At this time, the subscriber information includes information on what additional services the subscriber is receiving and what intelligent network services.

Among these, the information on the intelligent network service is referred to as "intel member-specific intelligent network information", and if the subscriber information transmitted from the HLR 5 includes the corresponding intelligent network information, the intelligent network service is performed.

The SGSN 2 stores the subscriber information transmitted from the HLR 5, and when the MS 1 attempts to make a packet call (step S24), if it is determined that the subscriber information includes the subscriber-specific intelligent network information, A message containing detailed information on the subscriber-specific call is transmitted to the SCP 3 (step S25). Here, the intelligent network information for each subscriber stores the conditions for receiving the intelligent network service, the SCP address for processing the corresponding service, and the intelligent network service number.

Receiving a message including detailed information on each subscriber call from the SGSN 2, SCP 3 analyzes the information of the message and then performs the intelligent network service set in the subscriber information. At this time, SCP (3) sends a message to the SGSN (2) for various types of intelligent network services to connect the call with a new Access Point Name, or simply proceed with the call or terminate the call. Various control such as to make a control to perform the operation (step S26).

Here, SCP (3) transmits a subscriber control call control message to the SGSN (2), the new access point name is stored in the subscriber control call control message, the SGSN (2) receiving the message is a new access point name Call connection is performed.

Thereafter, SGSN 2 requests creation of PDP context to GGSN 4 for connection with MS 1 and the Internet network (step S27), and when the GGSN 4 is ready for connection with the Internet network, The PDP context creation response message is sent to the SGSN 2 (step S28).

As described above, when the subscriber information of the HLR includes the CSI, the CSI includes the service key and the SCP address. The inclusion of subscriber information in the HLR means that control must be obtained from the SCP.

Therefore, the method of performing the intelligent network service by storing the intelligent network information for each subscriber in the HLR has a problem in that the load increases due to processing a message for each subscriber and it is difficult to provide various intelligent network services.

In addition, if the switching system includes CSI information according to the called number, if the call number and the CSI intelligent network service list are matched for each call and matched, the intelligent network service is performed using the corresponding service key and the SCP address.

However, the intelligent network service is applied to the MSC that provides the voice call, but not to the SGSN that processes the packet call.

The present invention is to solve the above-mentioned general problems, the purpose of which is to provide a variety of services to the subscriber by managing and processing the intelligent network information of the system unit, unlike the intelligent network service using the intelligent network information for each subscriber To provide.

The intelligent network triggering method in the mobile communication packet switching system of the present invention for achieving the above object, in the access point name and the Serving GPRS Support Node (SGSN) included in the packet call attempt message from the mobile station (MS) Comparing the access point names included in the intelligent network information of the stored system unit; If the access point name included in the packet call attempt message and the access point name included in the intelligent network information of the system unit stored in the SGSN match, the SGSN sends a message including detailed information about the call of the system unit to the SCP ( Service control point); And performing the intelligent network service based on the message received by the SCP.

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

As shown in FIG. 3, the WCDMA system to which the present invention is applied includes an MS 10, an SGSN 20, an SCP 30, a GGSN 40, and an HLR 50.

The SGSN 20 receives subscriber information from the HLR 50 and stores it, and stores NG_CSI (Network GPRS CAMEL Subscription Information) (hereinafter, referred to as "system unit intelligent network information") at a system level. Here, as shown in Table 2, the intelligent network information of the system unit includes the intelligent network service number, the access point name (APN) to receive the intelligent network service, the SCP address to handle the intelligent network service, and the continuation of the session when the intelligent network service fails. Including whether or not.

data Explanation Service Intelligent network service number APN (Access Point Name) Access point name (APN) to receive intelligent network service SCP Address SCP address to handle intelligent network service

When the SGSN 20 satisfies the intelligent network condition of the system unit, the SGSN 20 transmits a message including detailed information about the call of the system unit to the SCP 30 and then performs the intelligent network service of the system unit.

In this case, when the intelligent network condition of the system unit is satisfied, it means that the access point name included in the packet call attempt message and the access point name stored in the intelligent network information of the system unit are compared and matched.

Thereafter, the GGSN 40 receives the PDP context creation request message from the SGSN 20 and prepares for connection with the Internet network, and then transmits the PDP context creation response message to the SGSN 20.

The SCP 30 receives a message including detailed information on a call of a system unit from the SGSN 20 and analyzes the information of the message to perform an appropriate intelligent network service.

An intelligent network triggering method in a mobile communication packet switching system according to an embodiment of the present invention will be described with reference to the scenario of FIG. 4 and the flowchart of FIG. 5.

First, when the MS 10 attempts to make a packet call (step S44, step S51), the SGSN 20 determines whether the packet call includes the NG_CSI information to provide an intelligent network service of a system unit (step S52). ).

At this time, if the SGSN 20 does not include NG_CSI information, which is system-level intelligent network information, general packet call processing is performed (step S53).

However, when the NG_CSI information is included in the SGSN 20, the SGSN 20 matches the access point name included in the packet call attempt message from the MS 10 with the access point stored in the intelligent network information of the system unit. It is judged whether or not (step S54).

If the access point name included in the packet call attempt message from the MS 10 matches the access point stored in the intelligent network information of the system unit, the SGSN 20 includes a message containing detailed information on the call of the system unit. Is transmitted to SCP 30 (step S45, step S55).

The SCP 30 receives a message including detailed information on a call of a system unit from the SGSN 20, analyzes the information of the message, and then performs an appropriate intelligent network service. Subsequently, SCP 30 transmits a system control call control message to SGSN 20 via an intelligent network protocol (step S46, step S56).

An example of a system-wide intelligent network service is called billing intelligent network service. When a subscriber attempts to connect to free.chosun.com, a billing Internet site, the packet call attempt request message displays an access point name of free.chosun.com. It comes. The SGSN system compares the access point name (free.chosun.com) with the access point name stored in the intelligent network information of the system unit, and checks whether the access point name matches the condition.

As shown in Table 3, the intelligent network information of the system unit matches the access point name of No. 2 free, so that the intelligent network service is performed. According to the contents of the intelligent network information of the system unit, the SCP having the address of 010330 is used. In this case, a message including detailed information on the call of the system unit is transmitted along with the value of the service key 30. Based on this message information, SCP can perform proper control to SGSN 20 through intelligent network protocol, and can perform incoming billing intelligent network service.

number Service key APN (Access Point Name) SCP address One 20 one 0101220 2 30 free 0101330 3 40 location 0101440 ... ... ... ... n xxx xxxxxxxx Xxxxxxx

Thereafter, the SGSN 20 requests creation of a PDP context to the GGSN 40 in order to connect the MS 10 to the Internet network (steps S47 and S57), and the GGSN 40 prepares to connect to the Internet network. When the PDP context creation response message is transmitted to the SGSN 20 (steps S48 and S58).

Although the preferred embodiments of the present invention have been described in detail above, it will be understood by those skilled in the art that the present invention may be modified or modified in various ways. Therefore, changes of the embodiments of the present invention will not be able to escape the technical scope of the present invention.

As described above, the present invention can provide various types of intelligent network services to subscribers by managing and processing the intelligent network information at the system level, unlike the intelligent network service using the intelligent network information for each subscriber.

In particular, by using the access point name as an intelligent network triggering condition of the intelligent network information of the system unit, various intelligent network services using the access point name can be provided.

1 illustrates a typical WCDMA system.

2 is a scenario illustrating an intelligent network triggering method in a general mobile communication packet switching system.

3 illustrates a WCDMA system to which the present invention is applied.

4 is a scenario illustrating an intelligent network triggering method in a mobile communication packet switching system according to an embodiment of the present invention.

5 is a scenario illustrating an intelligent network triggering method in a mobile communication packet switching system according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings

10: MS (Mobile Station)

20: Serving GPRS Support Node (SGSN)

30: SCP (Service Control Point)

40: Gateway GPRS Service Node (GGSN)

50: HLR (Home Location Register)

Claims (2)

An intelligent network triggering method in a mobile communication packet switching system, Comparing the access point name included in the packet call attempt message from the mobile station (MS) with the access point name included in the intelligent network information of the system unit stored in the Serving GPRS Support Node (SGSN); If the access point name included in the packet call attempt message and the access point name included in the intelligent network information of the system unit stored in the SGSN match, the SGSN sends a message including detailed information about the call of the system unit to the SCP ( Service control point); Intelligent network triggering method in a mobile communication packet switching system comprising the step of performing the intelligent network service based on the message received by the SCP. The method of claim 1, The intelligent network information of the system unit includes a mobile network service number, an access point name to receive the intelligent network service, an SCP address to process the intelligent network service, and whether or not to continue the session when the intelligent network service fails. Intelligent network triggering method in switching system.