CN1167231C - Method and system for realizing node location and status information query in intelligent network - Google Patents

Abstract

The present invention discloses a method for the realization of querying node positions and state information in an intelligent network. The present invention is characterized in that a mobile application protocol is used, and negotiation mechanism request information comprises information associated with general packet radio services at any transmission time. In the method, a service control function unit can query position information and state information which are associated with the general packet radio services through a home position register in packet domains. Consequently, the present invention has the advantages of enhanced network capacity and enhanced networking flexibility.

Description

Method and system for realizing node location and status information query in intelligent network

technical field

The invention relates to a method for realizing node location and state information query in an intelligent network, which is used for the service control function unit in the packet domain to query the location information and state information related to the general packet radio service through the home location register.

Background technique

In the intelligent network, switching and business are separated, and the switch only completes the most basic connection function, while the control of all intelligent services is completed by another network layer, that is, the intelligent network (that is, the separation of business and switching). Among them, the service switching function unit (referred to as SSF) completes the switching function, reports various events in the call to the service control function unit (abbreviated as SCF) and may suspend the call, waiting for further instructions from the service control function unit; the service control function The unit completes the business logic control function.

The service control function unit SCF can also communicate with the Home Location Register (HLR), the Mobile Switching Center (MSC), and the General Packet Radio Service (GPRS) Support Node (SGSN) by using the Mobile Application Protocol (MAP) signaling. expand its capabilities. Based on this, the third generation mobile communication cooperation project organization 3GPP stipulates in its relevant specifications (23.078V4.0 and above) that in the circuit domain, the service control function unit SCF is related to the mobile switching center MSC through the home location register HLR query The method of position and state information, which utilizes the arbitrary time negotiation mechanism (abbreviated as ATI).

However, in the prior art, the service control function unit SCF in the packet domain cannot query the location information and status information related to the general packet radio service support node SGSN through the home location register HLR. Although the location information of the general packet radio service GPRS can be queried through the gateway mobile location center (GMLC for short), the status information cannot be obtained, so that some related services cannot be realized, and the gateway mobile location center GMLC device needs to be added. (Note: Since SGSN is a service GPRS support node, querying GPRS information is actually querying SGSN information. The two are from different perspectives. In order to comply with industry habits, two formulations are used in this paper, respectively from the functional entity from a business perspective.)

Because the prior art does not realize general packet radio service GPRS position and state information inquiry by home location register HLR, thereby make the user can not obtain the business relevant with these information (as some information that needs general packet radio service GPRS, as the business of protocol context ), limiting the capabilities of the network. Moreover, the location information cannot be queried through the home location register HLR, which reduces the flexibility of networking.

The purpose of the present invention is exactly in order to solve above problem, provide a kind of method that realizes node location and state information inquiry in intelligent network, so that realize General Packet Radio Service GPRS location and state information inquiry, strengthen network capacity, improve networking flexibility.

Contents of the invention

In order to achieve the above object, the present invention proposes a method for realizing node location and status information query in the intelligent network, which is used for the service control function unit SCF in the packet domain to query related to the general packet radio service (GPRS) through the home location register HLR location and status information.

The method comprises the steps of:

1) First, the mobile network service control function unit gsmSCF sends an arbitrary time negotiation mechanism request message ATI REQUEST to the home location register HLR, and the message includes at least three parameters: sender's address gsmSCF Address, requested information Requested Info, mobile station Identify Mobile Station Identity, where: the requested information not only indicates whether the required information is Location Information or status information Subscriber state, but also indicates whether the required information is related to the mobile switching center MSC or general packet radio service support The node SGSN is related, and the mobile station identity Mobile StationIdentity can be the international mobile station identity IMSI or the mobile station integrated service data network number MSISDN;

2) After receiving the request message from the mobile network service control function unit gsmSCF, the home location register HLR sends a corresponding response message ATI ACK to the mobile network service control function unit gsmSCF according to the requested message Requested Info, that is, if the request is a location If the message is Location Information, respond to the location message Location Information; if the request is for the state information Subscriber state, then respond to the state information Subscriber state; if the request is for information related to the mobile switching center MSC, then respond to the information related to the mobile switching center MSC ; If the request is for information related to the general packet radio service support node SGSN, then respond with information related to the general packet radio service support node SGSN.

Due to the adoption of the above scheme, the arbitrary time negotiation mechanism ATI has been expanded, and the information related to the general packet radio service support node SGSN has been added in the arbitrary time negotiation mechanism request information ATI REQUEST and response information ATI ACK, thereby realizing the general packet radio service support node SGSN. The wireless service supports the query of the location and status information related to the node SGSN, which enhances the network capability and improves the flexibility of networking.

Description of drawings

FIG. 1 is a schematic diagram of the architecture of an embodiment of the present invention.

Fig. 2 is a schematic diagram of signaling interaction according to an embodiment of the present invention.

Detailed ways

The present invention will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings.

As shown in Figure 1, since it is used in the mobile network, its service control function unit SCF is gsmSCF. It can be seen from the figure that the mobile network service control function unit gsmSCF and the home location register HLR interact through the mobile application protocol MAP.

Fig. 2 is a schematic diagram of signaling interaction, which includes the following steps: 1) earlier, the mobile network service control function unit gsmSCF sends an arbitrary time negotiation mechanism request information ATI REQUEST to the home location register HLR, 2) the home location register HLR receives the mobile network After receiving the request message from the service control function unit gsmSCF, it sends a corresponding response message ATI ACK to the mobile network service control function unit gsmSCF according to the requested message Requested Info.

Table 1 and Table 2 are respectively the situations of the arbitrary time negotiation mechanism request information ATI REQUEST in the prior art and in the present invention, wherein: Information element name refers to the name of the parameter, Required refers to whether the parameter is necessary, M indicates that it is necessary, C means that it is optional according to the situation, the same is true for Tables 3 and 4 below, and Description refers to the description. It can be seen from Tables 1 and 2 that the message includes at least three parameters: the address of the sender gsmSCF Address, the requested information Requested Info, and the mobile station identification Mobile Station Identity. In Table 2, the requested information not only specifies Whether the required information is location information LocationInformation or state information Subscriber state, and specify whether the required information is related to the mobile switching center MSC or the general packet radio service support node SGSN. The mobile station identity Mobile Station Identity can be the international mobile station identity IMSI or Mobile Station Integrated Services Data Network Number MSISDN.

Table 1: ATI REQUEST message in the prior art: Information element name required Description gsmSCF Address m The sender's address. Requested Info m Requested location information. Mobile Station Identity m Identify a mobile user. Can be IMSI or MSISDN.

Table two: ATI REQUEST message of the present invention: Information element name required Description GsmSCF Address m The sender's address. Requested Info m requested information. Indicate the type required (MSC-related or SGSN-related) Mobile Station Identity m Identify a mobile user. Can be IMSI or MSISDN.

Table 3 and Table 4 correspond to the response message ATI ACK in the prior art and the present invention. It can be seen from Table 4 that the response information ATI ACK corresponds to the request information ATI Request, that is, if the request is the location message Location Information, then respond to the location message Location Information; if the request is the status information Subscriber state, then respond to the status information Subscriber state; if the request is for information related to the mobile switching center MSC, then respond to the information related to the mobile switching center MSC; if the request is for information related to the general packet radio service support node SGSN, then respond to the information related to the general packet radio service Information related to the supporting node SGSN.

Table 3: ATI ACK message in the prior art: Information element name required Description Location Information C The location information of the mobile station (only including the location information related to the MSC). See 3G TS23.018

Information element name Required Description Subscriber state C Status information of the mobile station (only including MSC-related status information). See 3G TS23.018

Table 4: Modified ATI ACK message: Information element name required Description Location Information C The location information of the mobile station (MSC-related or sGSN-related information, determined according to the type of request). See 3G TS23.018 Subscriber state C Status information of the mobile station (MSC-related or SGSN-related information, determined according to the type of request).

Wherein, the status information related to the general packet radio service support node SGSN includes but not limited to: protocol context list (PDP CONTEXT LIST), busy status of the mobile station, and whether it is reachable.

Experiments show that the present invention can realize the inquiry of the position and state information related to the general packet radio service support node SGSN, enhance the network capability, and improve the flexibility of networking.

Claims (2)

1. A method for inquiring node location and status information in an intelligent network, used for a service control function unit (SCF) in the packet domain to inquire about the location related to the general packet radio service (GPRS) through the home location register (HLR) Information and status information, characterized by using the Mobile Application Protocol (MAP), comprising the steps of: 1) First, the mobile network service control function unit (gsmSCF) sends an arbitrary time negotiation mechanism request message (ATI REQUEST) to the home location register (HLR), and the message includes at least three parameters: the sender's address (gsmSCF Address), Requested Information (RequestedInfo), Mobile Station Identity (Mobile Station Identity), wherein: the requested information (Requested Info) not only indicates whether the required information is location information (LocationInformation) or status information (Subscriber state), but also indicates the required Whether the information is related to the mobile switching center (MSC) or the general packet radio service (GPRS), the mobile station identity (Mobile Station Identity) can be the International Mobile Station Identity (IMSI) or Mobile Station Integrated Services Data Network Number (MSISDN) ; 2) After the home location register (HLR) receives the request message from the mobile network service control function unit (gsmSCF), it sends a corresponding response message (ATI) to the mobile network service control function unit (gsmSCF) according to the requested message (Requested Info). ACK), that is: if the request is for location information (Location Information), then respond to location information (LocationInformation); if the request is for state information (Subscriber state), then respond to state information (Subscriber state); if the request is for mobile Information related to the switching center (MSC), then respond to the information related to the mobile switching center (MSC); if the information related to the general packet radio service (GPRS) is requested, then respond to the information related to the general packet radio service (GPRS) information. 2. The method for realizing node position and status information inquiry in intelligent network as claimed in claim 1, characterized in that: said status information related to General Packet Radio Service (GPRS) includes but not limited to: protocol context list ( PDP CONTEXT LIST), the busy status of the mobile station, and whether it is reachable.

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