CN1756420A - Method and system for realizing intelligent service in mobile intelligent network - Google Patents

Abstract

The invention relates to a method for providing intelligent services on a mobile network by means of signaling interception. The method carries out number conversion to the smart subscriber number by changing the networking structure of the signaling network and intercepting the signaling, and the Mobile Switching Center (MSC) routes the call to the Service Switching Point (SSP) according to the converted number to trigger the smart service; The method includes: an intercepting step, an allocating step, an analyzing step, a triggering step and a processing step. The method can carry out intelligent services to any user on a non-standard intelligent network, and avoids the inconvenience caused by adopting special number segments or access codes.

Description

Method and system for realizing intelligent service in mobile intelligent network

technical field

The invention relates to the field of mobile communication, in particular to a method and system for realizing intelligent services in a mobile intelligent network.

Background technique

Currently, many operators hope to provide intelligent network services on existing Global System for Mobile Communications (GSM) or Code Division Multiple Access (CDMA) networks, but standard intelligent network services require network equipment capable of supporting intelligent networks, which involves The upgrade of network equipment and the degree of support from manufacturers are difficult to implement in practice. At present, non-standard intelligent network (that is, overlay network) is often used to provide intelligent services.

The existing overlay network solution is to overlay a layer of independent switches supporting intelligent network capabilities on the network and become an independent SSP. Refer to Figure 1, which is a schematic diagram of the network structure of the overlay network. The principle is that the MSC routes the call of the intelligent user to the independent SSP, and the SSP supporting the intelligent network capability triggers the intelligent service on the SCP to provide services to the user.

When using the overlay network solution, there are two ways to judge whether a user is a smart user:

Method 1: The smart user replaces the original number and adopts a new number segment to distinguish it from the old user; when making a call, judge it on the MSC, and if it is a special number segment, route the call to the SSP.

Method 2: Use the special access code mode. When the user wants to open the smart service, he needs to enter the access code first. When the MSC judges that it is a special access code, it will route the call to the SSP.

The two methods for judging that a user is a smart user in the prior art have the following defects: method 1 requires that the number of the smart user must use a special number segment, and the original user must change the number to become a smart user; method 2 requires the smart user to call Access code must be added, which is inconvenient for users.

Contents of the invention

Aiming at the deficiencies of the prior art, the present invention proposes a method and system for realizing intelligent services in a mobile intelligent network, so as to solve the problem of a lot of inconvenience brought to users by adopting special number segments or access codes.

For this reason, the present invention adopts following scheme:

A mobile intelligent network system includes a service control point (SCP), a service switching point (SSP), a home location register (HLR), a mobile switching center (MSC), a short message center (SMSC) and an STP, and the STP is connected to the There is a signaling channel between SCP, SSP, MSC, HLR and SMSC; the SCP assigns a pseudo-number for triggering smart services to smart users and saves the corresponding relationship between the pseudo-number and the user's real number, and registers on the MSC Pseudo-number; the STP intercepts the interactive signaling between MSC and HLR and SMSC and between SSP and HLR, and cooperates with SCP to complete the user's pseudo-number and real number conversion in the signaling, and the SSP detects the user's pseudo-number Trigger the intelligent business logic on the SCP.

The method for realizing intelligent services in the mobile intelligent network includes the following steps:

The allocation step is used to assign a pseudo-number to a smart user, and establish a corresponding relationship between a user's real number and a pseudo-number on the SCP and register the pseudo-number at the MSC;

The intercepting step is used to intercept all interactive signaling between the MSC and the HLR and the SMSC and between the SSP and the HLR to the SCP;

The analysis step is used to analyze whether the intercepted signaling needs to be processed, and when it is determined that the user number in the signaling needs to be converted, the pseudo-number in the signaling is converted into a real number or the real number in the signaling is converted into a pseudo-number Number;

Triggering step, when the MSC detects the fake number of the user participating in the call, the call is routed to the SSP, and the SSP triggers the smart service on the SCP according to the fake number; or triggers the smart service when the SCP determines that the intercepted SMS user is a smart user ;

In the processing step, the SCP completes the intelligent service processing, and continues to perform corresponding follow-up processing according to the processing result.

Compared with the prior art, the present invention has the following advantages:

1. Using this method, regular pseudo-numbers can be used to replace irregular user real numbers to perform registration, routing, and search for roaming numbers.

2. Using this method, intelligent services can be provided to any user on a non-standard intelligent network, without the need for the user to change the number or dial the access code.

3. By adopting this method, other intelligent services can be conveniently developed on the basis of existing services.

Description of drawings

FIG. 1 is a schematic diagram of a network structure of an overlay network in the prior art.

Fig. 2 is a schematic diagram of the network structure of the signaling interception solution of the present invention.

Fig. 3 is a schematic diagram of the network structure of the present invention using STP to intercept signaling.

Fig. 4 is a business flow chart of smart user registration and location update in the present invention.

Fig. 5 is a business flow chart of the present invention when the calling party is an intelligent user and the called party is an ordinary user or another network user.

Fig. 6 is a business flow chart when the calling party is an ordinary user or another network user and the called smart user is called in the present invention.

Fig. 7 is a business flow chart of the present invention when both the calling party and the called party are smart users.

Fig. 8 is a business flow chart when a smart user sends a short message according to the present invention.

Fig. 9 is a business flow chart when a smart user receives a short message according to the present invention.

Detailed ways

Referring to shown in Fig. 2, intelligent network system of the present invention comprises service control point (SCP), service switching point (SSP), home location register (HLR), mobile switching center (MSC) and short message center (SMSC); SCP is The smart user allocates a fake number for triggering smart services, saves the corresponding relationship between the fake number and the user's real number, and registers the fake number on the MSC. The SCP is also used to intercept the interactive signaling between MSC, HLR and SMSC, and between SSP and HLR, and complete the conversion of user pseudo-number and real number in the signaling. When the SSP detects the fake number of the user, it triggers the intelligent service logic on the SCP.

Referring to Figure 3, the SCP used to intercept signaling in Figure 2 can also be implemented with enhanced STP, and the service processing is still implemented by SCP. The original SCP is divided into two entities, STP is used for signaling interception, and SCP is used for business Processing, STP sharing or synchronizing smart user account opening data on SCP.

In this embodiment, the pseudo-number structure is: routing code+SCP code+charging area code where the MSC is located+any number, and the total length of the number must be less than the limit of the MSC. Of course, other forms of coding can also be used, and the principle is that SCP and MSC can be distinguished.

The implementation of the present invention will be described in detail below mainly using the networking structure shown in FIG. 2 .

Referring to Figure 4, during the entire business process, the process of smart user registration and location update is as follows:

Step 1: The mobile user registers with the HLR when starting up or updating the location, and sends the location registration signal IMSI of MSISDN1 to the SCP by MSICa;

Step 2: After judging the signaling, the SCP transparently transmits the location registration signal IMSI of MSISDN1 to the HLR;

Step 3: The HLR returns the user's mobile phone number MSISDN1, and the signaling is intercepted when it passes through the SCP;

Step 4: SCP judges whether the mobile phone number MSISDN1 is a smart user, and if it is a smart user, it performs number conversion, that is, modifies MSISDN1 to a pseudo-number S_ISDN1, and saves the relationship between MSISDN1 and S_ISDN1;

Step 5: The SCP sends the converted pseudo-number S_ISDN1 to the MSC, and completes the HLR's location registration response to the MSCa. On the MSC, the IMSI establishes a corresponding relationship with the fake number, and the MSC uses the fake number as a normal number.

Referring to Figure 5, when the calling party is an intelligent user and the called party is an ordinary user or other network user, the business processing flow is as follows:

Step 1: Smart user MSISDN1 initiates a call, and MSCa routes the call request to SSP according to the routing code RN in the pseudo-number S_ISDN1 registered by the smart user;

Step 2: SSP triggers intelligent services according to the SCP code in S_ISDN1;

Step 3: SCP performs number conversion according to the saved relationship between MSISDN1 and S_ISDN1, that is, converts the fake number S_ISDN1 into the real number MSISDN1;

Step 4: SCP finds the user data according to the user's real number and performs intelligent business processing;

Step 5: The SCP sends the real number MSISDN1 to the SSP, and instructs the SSP to make a connection call.

When the called party is an intelligent user, the MSC or SSP does not carry the suppression parameter in the callee routing signaling initiated for the first time. After the signaling is intercepted, the SCP converts the real number of the called user into a fake number and returns directly. MSC or SSP to trigger intelligent services. After the intelligent service is triggered, the SSP initiates the callee routing search signaling to carry the suppression parameter, and the SCP transparently transmits the signaling to the HLR after detecting the suppression parameter.

Referring to Fig. 6, when the calling party is an ordinary user or another network user, and the called party is an intelligent user, the called flow starts from (G)MSCa, and the business processing flow is as follows:

Step 1: (G) MSCa initiates the signaling of searching for the called route, and the signaling is intercepted by the SCP;

Step 2: SCP judges whether MSISDN2 is a smart user, if it is a smart user, then SCP directly returns the called pseudo-number S_ISDN2 to (G)MSCa;

Step 3: (G) MSCa routes the call request to SSP according to the routing code RN in the pseudo-number S_ISDN2,

Step 4: The SSP triggers the intelligent service to the SCP according to the SCP code in the fake number S_ISDN2;

Step 5: SCP processes the smart service and changes the fake number S_ISDN2 into the real number MSISDN2;

Step 6: SCP sends the real number MSISDN2 to SSP;

Step 7: SSP initiates the called route inquiry to HLR, and band restrains CSI parameter (it is different trigger in CDMA);

Step 8: After the SCP intercepts the routing query signaling and detects the CSI parameters, transparently transmits the signaling to the HLR;

Step 9: HLR sends to MSCb the signaling of inquiry roaming number, and this signaling is intercepted by SCP;

Step 10: The SCP converts the called real number MSISDN2 into a fake number S_ISDN2;

Step 11: the SCP uses the fake number to send the signaling of querying the roaming number to MSCb;

Step 12: MSCb assigns the roaming number MSRN2 (TLDN in the CDMA network, the same below) according to the fake number to return, and is intercepted by the SCP again;

Step 13: The SCP changes the fake number S_ISDN2 back to the called real number MSISDN2;

Step 14: SCP returns roaming number MSRN2 to HLR;

Steps 15 and 16: HLR returns to MSRN2 to SSP through SCP;

Step 17: SSP routes the call request to MSCb.

Referring to Figure 7, when both the calling party and the called party are smart users, the called process starts from the SSP. Since the MSC detects the caller’s fake number, it connects the call to the SSP, and the SSP triggers the intelligent service on the SCP. Starting from SSP, the process is as follows:

Step 1: The SSP initiates a signaling to find the called route, which is intercepted by the SCP;

Step 2: SCP judges whether MSISDN2 is a smart user, and if it is a smart user, SCP directly returns the called pseudo-number S_ISDN2 to SSP;

Step 3: The SSP triggers the intelligent service to the SCP according to the SCP code in the fake number S_ISDN2;

Step 4: SCP processes the smart service and changes the fake number S_ISDN2 into the real number MSISDN2;

Step 5: SCP sends the real number MSISDN2 to SSP;

Step 6: SSP initiates called route inquiry to HLR, band suppresses CSI parameter (is different trigger in CDMA);

Step 7: After the SCP intercepts the route query signaling and detects the suppressed CSI parameter therein, transparently transmits the signaling to the HLR;

Step 8: HLR sends to MSCb the signaling of inquiry roaming number, and this signaling is intercepted by SCP;

Step 9: The SCP converts the called real number MSISDN2 into a fake number S_ISDN2;

Step 10: the SCP uses the fake number to send the signaling of querying the roaming number to MSCb;

Step 11: MSCb assigns the roaming number MSRN2 (TLDN in the CDMA network, the same below) according to the fake number to return, and is intercepted by the SCP again;

Step 12: The SCP changes the fake number S_ISDN2 back to the called real number MSISDN2;

Step 13: SCP returns roaming number MSRN2 to HLR;

Steps 14 and 15: HLR returns to MSRN2 to SSP through SCP;

Step 16: SSP routes the call request to MSCb.

Referring to Figure 8, the business processing flow when the smart user sends a short message is as follows:

Step 1: When the user sends a short message to SMSC through MSCa, it is intercepted by SCP, and at this time, MSCa sends a fake number S_ISDN1;

Step 2: SCP judges whether the user is a smart user, if it is a smart user, then transforms the user's pseudo-number S_ISDN1 into a real number MSISDN1;

Step 3: SCP performs intelligent business processing;

Step 4: The SCP uses the real number MSISDN1 to send the short message to the short message center SMSC.

Referring to Fig. 9, the business processing flow when the smart user receives the short message is as follows:

Steps 1 and 2: The short message center SMSC searches the receiver's short message route to the HLR through the SCP;

Step 3: HLR is intercepted by SCP when it returns receiver SMS routing information MSCbID to MSCb;

Step 4: The SCP judges whether the user is a smart user, and if it is a smart user, performs smart business processing;

Step 5: The SCP returns the receiver's routing information MSCbID to the SMSC;

Step 6: SMSC sends a short message to MSCb and is intercepted by SCP;

Step 7: SCP transforms the user's real number MSISDN2 into a fake number S_ISDN2;

Step 8: The SCP uses the fake number S_ISDN2 to send the short message to MSCb.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (8)

1. A mobile intelligent network system, comprising a service control point (SCP), a service switching point (SSP), a home location register (HLR), a mobile switching center (MSC) and a short message center (SMSC); it is characterized in that Including a signaling transfer point (STP), which has a signaling path between the STP and the SCP, SSP, MSC, HLR and SMSC respectively; The corresponding relationship between the real numbers of the users, and register the pseudo-numbers on the MSC; the STP intercepts the interactive signaling between the MSC, the HLR and the SMSC, and between the SSP and the HLR, and cooperates with the SCP to complete the user pseudo-numbers in the signaling. The number and the real number are converted, and when the SSP detects the user's fake number, it triggers the intelligent service logic on the SCP. 2. The mobile intelligent network system according to claim 1, wherein the STP and the SCP are the same entity, or two mutually independent entities. 3. A method for realizing intelligent services in a mobile intelligent network, said mobile intelligent network comprising a service control point (SCP), a service switching point (SSP), a home location register (HLR), a mobile switching center (MSC) and Short message center (SMSC); It is characterized in that the method comprises: The allocation step is used to assign a pseudo-number to a smart user, and establish a corresponding relationship between a user's real number and a pseudo-number on the SCP and register the pseudo-number at the MSC; The intercepting step is used to intercept all interactive signaling between the MSC and the HLR and the SMSC and between the SSP and the HLR to the SCP; The analysis step is used to analyze whether the intercepted signaling needs to be processed, and when it is determined that the user number in the signaling needs to be converted, the pseudo-number in the signaling is converted into a real number or the real number in the signaling is converted into a pseudo-number Number; Triggering step, when the MSC detects the fake number of the user participating in the call, the call is routed to the SSP, and the SSP triggers the smart service on the SCP according to the fake number; or triggers the smart service when the SCP determines that the intercepted SMS user is a smart user ; In the processing step, the SCP completes the intelligent service processing, and continues to perform corresponding follow-up processing according to the processing result. 4. The method according to claim 3, wherein the pseudo-number structure is: routing code + SCP code + charging area code of MSC + any number, and when MSC detects the routing code in the pseudo-number, it will The call is routed to the SSP, and the SSP triggers the intelligent service according to the SCP code in the fake number. 5. The method according to claim 3, characterized in that the step of allocating is performed when the HLR returns the real number of the user when the user is intercepted in the process of registering with the HLR. 6. The method according to claim 3, 4 or 5, characterized in that, in the analysis step, when the SCP detects that the intercepted signaling carries a suppression parameter, it transparently transmits the signaling. 7. The method as claimed in claim 6, characterized in that, in the analysis step, if the SCP determines that the intercepted MSC and SSP have no suppression parameters in the called routing signaling and the called user is an intelligent user, then the After the real number of the called user is converted into a fake number, it is directly returned to the MSC and SSP to trigger the intelligent service; if the called routing signaling carries suppression parameters, the signaling is transparently transmitted. 8. The method according to claim 6, characterized in that, in the analyzing step, when it is determined that the intercepted signaling does not need to be processed, the signaling is transparently transmitted.

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