CN1295908C - Method of realizing mobile intelligent business on fixed intelligent network - Google Patents

Abstract

The invention relates to a method for realizing mobile intelligent services on a fixed intelligent network. Adding a user intelligent service identifier in HLR user data, when a user initiates a location registration request, includes: a. The user initiates location registration; b. MSC sends the HLR Initiate a request to update the current location of the user; c. HLR returns a location registration response, which contains the user's newly added smart service identifier; d. MSC adds an access code before the called number according to the smart service identifier, and according to the According to the access code, the service is aggregated to the SSP in the operator's existing fixed intelligent network; e. The SSP in the fixed intelligent network finds the corresponding service key and the SCP address in the fixed intelligent network according to the access code, and performs intelligent triggering. Due to the adoption of the technical solution of the present invention, the intelligent service can be realized on the basis of the existing fixed intelligent network equipment of the user without increasing investment in the mobile intelligent network. Its investment is small, can make full use of the investment of existing intelligent network, develop prepayment service rapidly.

Description

A Method for Realizing Mobile Intelligent Service on Fixed Intelligent Network

technical field

The present invention relates to the field of communication, in particular to the field of intelligent business.

technical background

Intelligent Network Service (Intelligent Network Service) refers to the business that provides services for all communication networks through the intelligent network. At present, prepaid services, card number services, and virtual private network services are commonly used.

At present, my country's mobile network mainly has two standards. One is the GSM standard widely used in Europe. China Mobile and China Unicom both have networks of this standard. The other is the CDMA standard widely used in North America and East Asia. China Unicom currently The mobile network based on CDMA standard is being vigorously developed. To realize the prepaid service in the mobile network needs to increase the intelligent network equipment, and provide this function through the intelligent network equipment. The intelligent network standard used in the GSM system is the CAMEL standard system defined by ETSI. It uses the ITU-T standard Q .12XX series defines the CS-1 distribution structure, and the prepaid service capability is defined in CS-1. The intelligent network standard used in the CDMA system is called WIN, which adopts the CS-2 distribution structure of IUT_T. In order to facilitate expansion, ANSI/TIA/EIA has expanded the signaling messages and signaling processes of the original ANSI41D, and defined a series of wireless intelligent network (WIN) protocols on the basis of the original, mainly including IS771, PN4287 and PN4289, and these protocols will be integrated into ANSI41E. ANSI41E will become a core network protocol based entirely on the intelligent network. A typical intelligent network system is shown in Figure 1, including the following network entities: service generation environment, service switching point, service management point, intelligent peripherals, service management access point, service data point and service control point, among which the service control point It plays the role of business control and is the core part of the intelligent network.

The current intelligent network mainly has two realization methods: the target network and the overlay network. The target network is the realization of the function of the switch and the SSP in the fixed intelligent network. In the superimposed network, the functions of the switch and the SSP in the fixed intelligent network are independent, and one or more switches share the SSP in the fixed intelligent network, which is generally triggered by a number segment. At present, China Mobile's GSM network and China Unicom's CDMA network are basically target networks. In the long run, the target network is also the development trend of intelligent networks. Therefore, this article mainly uses the target network as an example to illustrate, but the conclusions are also applicable to superimposed networks. .

The intelligent service process on the target network is realized by reporting the service key through the SSP in the fixed intelligent network and triggering the intelligent call process.

If the user is signed as an intelligent user, then in the user's subscription information O-CSI and T-CSI in the HLR, identify the user's service key (such as prepaid), and the service control node fixes the address of the SCP in the intelligent network. In the following, the mobile originated (MO) intelligent call and mobile terminated (MT) intelligent call of the GSM network are taken as examples to illustrate the implementation process of the intelligent service.

As shown in Figure 2, it is a schematic diagram of triggering a smart user to initiate (MO) call in the prior art, including the following steps:

(1) When the location is updated or the O-CSI changes, the O-CSI information is transmitted to the VLR of the visiting office for storage;

(2) MSC receives the call establishment request of base station system (BSS), and inquires user information to VLR;

(3) The MSC contains O-CSI information from the VLR user information. After selecting the O-CSI that meets the DP standard, the MSC suspends the current call, and triggers the GSM fixed IP address according to the SCP address in the GSM fixed intelligent network signed by the prepaid user. SCP request indication in intelligent network.

(4) The gsmSCF starts the prepaid service logic, and after the prepaid billing process, instructs the gsmSSF to continue;

(5) The gsmSSF receives the instruction from the gsmSCF, and completes the call establishment procedure according to the routing information indicated by the gsmSCF.

As shown in Figure 3, it is a schematic diagram of triggering a user termination (MT) call, including the following steps:

(1) The GMSC receives an incoming call request from the originating office;

(2) GMSC queries routing information to the called Home Location Registry (HLR);

(3) The HLR finds that the called party is a prepaid subscriber, and returns the T-CSI information of the called party;

(4) The GMSC receives the T-CSI information returned by the HLR, indicating that this call is an intelligent call. The GMSC suspends the current call, and the gsmSSF requests instructions from the appropriate gsmSCF according to the gsmSCF address and prepaid service key in the T-CSI information;

(5) The gsmSCF starts the business logic and instructs the gsmSSF to complete the connection after performing the prepaid billing process;

(6) The GMSC requests routing information from the called HLR for the second time;

(7) HLR returns the roaming number;

(8) The GMSC completes the call setup procedure according to the returned roaming number.

At present, the realization of mobile intelligent services requires the support of mobile intelligent networks. However, in the market where fixed-line wireless local telephones are developed, a local network requires a large investment in building wireless local telephone intelligent networks. Initially, operators do not want to build intelligent networks at the initial stage, but they can develop prepaid service.

The most important disadvantage of the existing technical solution is that it needs to increase the investment in building the intelligent network. Relatively speaking, the investment in the intelligent network is relatively large. The increase in investment has resulted in an increase in costs and difficulty in quickly promoting the business. Although the intelligent network can provide rich and flexible services, in some areas that want to develop mobile services in a small area or only want to provide prepaid services, it is not expected to realize this service through expensive intelligent networks.

Contents of the invention

The purpose of this patent is to provide a feasible intelligent service solution based on the user's existing intelligent network equipment on the basis of not increasing the user's intelligent network investment as much as possible. For this reason, the present invention adopts following scheme:

A method for realizing mobile intelligent services on a fixed intelligent network, adding a user intelligent service identifier in the user data of the HLR to identify the user's intelligent service attribute, when the user initiates a location registration request, the steps include the following steps:

a. The user initiates location registration;

b. The MSC initiates a request to the HLR to update the current location of the user;

c. The HLR returns a location registration response, which includes the smart service identifier newly added by the user;

d. The MSC adds a routing prefix before the called number according to the intelligent service identifier, and merges it into the SSP in the operator's existing fixed intelligent network;

e. The SSP in the fixed intelligent network finds the corresponding service key and the address of the SCP in the fixed intelligent network according to the access code, and performs intelligent triggering.

The intelligent service identification is realized by utilizing the spare parameters in the user data in the HLR.

In the step a, when the user initiates location registration, the field identifying the user's intelligent service attribute is sent to the MSC/VLR as user information for storage.

Described step d further comprises:

d1. The MSC returns a location registration response to the user, and the user data is inserted into the VLR, including the newly added intelligent service identifier;

d2. The MSC originator checks the user data and finds the user's intelligent service. The MSC code adds an access code before the called number according to the intelligent service identifier, and routes to the corresponding SSP in the fixed intelligent network according to the access code.

The method for implementing intelligent services on the fixed intelligent network further includes adding a corresponding relationship table between the access number and the service key/SCP address in the fixed intelligent network in the SSP of the SCP in the fixed intelligent network.

Due to the adoption of the technical scheme of the present invention, the smart service can be realized without increasing investment in the mobile intelligent network and relying on the user's existing fixed intelligent network equipment. Its investment is small, and it can make full use of the investment in the existing intelligent network to quickly develop prepaid services.

Description of drawings

FIG. 1 is a schematic structural diagram of an intelligent network in the prior art;

FIG. 2 is a schematic diagram of triggering a call initiated by a user in the prior art;

FIG. 3 is a schematic diagram of a trigger for a user to terminate a call in the prior art;

Fig. 4 is a call schematic diagram of the embodiment of the present invention;

FIG. 5 is a schematic diagram of a call flow in an embodiment of the present invention;

Fig. 6 is a schematic diagram of a call originating from a smart user's home location in the present invention;

Fig. 7 is a schematic diagram of a call initiated by a smart user roaming in the present invention;

Fig. 8 is a connection schematic diagram of the same MSC connected to SSPs in different fixed intelligent networks in the present invention;

Fig. 9 is a schematic diagram of a call terminated at a mobile user's home location in the present invention;

Fig. 10 is a schematic diagram of a called call flow in the present invention.

Detailed ways

The specific implementation manners of the present invention will be described below in conjunction with the accompanying drawings.

The purpose of this solution is to realize mobile intelligent services without increasing the investment of the mobile intelligent network, relying on the user's existing intelligent network equipment without increasing large investment. The intelligent network can be a fixed intelligent network or a mobile intelligent network of other standards .

The present invention adds the user's intelligent service identifier in the user data of the HLR to identify the user's intelligent service attribute. When the user initiates an intelligent service request, the attribute is sent to the MSC/VLR, and the identification is used to indicate and identify the intelligent service. User intelligence service request. The user intelligent service identification is realized by utilizing the spare parameters in the user data in the HLR. Because the user's subscription information expression form of HLR is an array; Each record in this array refers to all information of a user, and the information of user is formed by each data item in the array, and the intelligent service mark that adopts among the present invention is exactly an The data item in the record.

In the present invention, some settings need to be made to the relevant network entities, as follows:

Modifications to HLR:

Use the spare parameters in the user data in the HLR to identify the intelligent service attributes of the user. This parameter is delivered to the MSC/VLR through the location update process.

Modifications to MSC/VLR:

The MSC reads the intelligent service attribute identification, and performs number prefix conversion according to the intelligent service identification, adds an access code before the original called party, and routes to the tandem office and gateway office.

Data configuration of SSP in fixed intelligent network:

The SSP in the fixed intelligent network adds a table of data configuration, access code number and service key Service_key/SCP address in the fixed intelligent network. At present, the SSP in the fixed intelligent network on the Internet supports both the target network and the overlay network mode, so this data configuration is supported.

Modifications to SCP in fixed intelligent network:

Add business logic software, which can be loaded online on the SCP design in the existing standard fixed intelligent network. The service logic software queries the user's account balance according to the service key, and if the balance is greater than the minimum limit, then deducts the corresponding fee according to the call rate.

Based on the above settings, the present invention may specifically include the following steps:

a. The user initiates location registration;

In this step, the location registration may be initiated when the user comes to a new location area or when the periodic location update time arrives, that is, when the user's relevant location information changes or when an update condition is artificially set.

b. The MSC initiates a request to the HLR to update the current location of the user;

c. The HLR returns a location registration response, which includes the smart service identifier newly added by the user;

d. The MSC adds an access code before the called number, and merges it into the SSP in the fixed intelligent network of the operator's existing intelligent network;

Here, the MSC returns a location registration response to the user, and the user data is inserted into the VLR, including the newly added intelligent service identifier;

The MSC originator checks the user data and finds the user's intelligent service. The MSC code adds an access code before the called number according to the attribute of the intelligent service, and routes to the corresponding SSP in the fixed intelligent network according to the access code.

The SSP in the fixed intelligent network finds the corresponding service key and the address of the SCP in the fixed intelligent network according to the access code, and performs intelligent triggering.

Look at several specific embodiments below:

Embodiment 1: Smart user originates at home

Assuming two users in Shenzhen (the area code of Shenzhen is 0755), the calling user number is A, the called user number is B, and the called access code that triggers the SSP in the fixed intelligent network is R1, as shown in Figure 6, Including the following main steps:

1. User A initiates a call in Shenzhen, where the calling party is identified by IMSI, and the called party is identified by number B;

2. The MSC obtains the number 0755A of the calling user according to the user data, and then checks the intelligent service attribute of the calling user data. If the intelligent service attribute is valid, add the area code in front of the called number, and according to the intelligent service attribute, add the area code in front of the called number. Add the access code R1, and configure the route from R1 to the SSP in the fixed intelligent network in the data configuration of the MSC;

3. The SSP in the fixed intelligent network obtains the corresponding Service-key and the address of the SCP in the fixed intelligent network according to R1, and initiates an intelligent service trigger request. It includes calling number 0755A and called number 0755B. Based on this, the SCP in the fixed intelligent network knows that the Shenzhen user is calling the Shenzhen user, and starts charging;

4. The SCP in the fixed intelligent network returns Continue/Connect.

5. The SSP in the fixed intelligent network uses 0755A and 0755B to continue calling according to the calling and called information returned by Connect.

Embodiment 2: Smart user originates a call while roaming

This situation is different from the previous home origin call, because the charges are different when the user is roaming, so when the user number is sent to the SSP in the fixed intelligent network and the SCP in the fixed intelligent network, it needs to be identified The user has roamed, as shown in Figure 7, mainly including the following steps:

1. MSC analysis shows that if user A in 0755 roams to 0754, the calling number sent to the SSP in the fixed intelligent network and the SCP in the fixed intelligent network will be changed to 07540755A, and the called number will be R10755B.

2. The SSP in the fixed intelligent network obtains the corresponding Service-key and the SCP address in the fixed intelligent network according to R1, and initiates an intelligent service trigger request, including the calling number 07540755A and the called number 0755B.

3. According to the business logic analysis of the SCP in the fixed intelligent network, the user of 0755A initiates a call to 0755B after roaming to 0754, and the SCP in the fixed intelligent network performs correct billing, including roaming charges and call charges.

4. After the SSP in the fixed intelligent network receives the Continue/Connect instruction returned by the SCP in the fixed intelligent network, the SSP in the fixed intelligent network makes a call according to the calling and called numbers in the Connnect message returned by the SCP in the fixed intelligent network, and the SCP in the fixed intelligent network changes It is 0755A-0755B, and the follow-up procedure is the same as a normal call.

In this case, the number of the non-roaming user needs to be changed to 07550755A->0755B, indicating that user A of 0755 initiates a call to 0755 locally.

Embodiment 3: The same MSC is connected to SSPs in different fixed intelligent networks

At present, there has been a demand for multiple local networks to share one MSC in the market, and each local network has its own SSP in the fixed intelligent network. It is hoped that the users of the local network will converge to the SSP in the local fixed intelligent network. Do smart triggering.

When a user makes a call, the MSC needs to obtain the current visiting place of the user according to different location areas, and can obtain the calling and called numbers with area codes. This requirement is addressed in the cell-based roaming solution, and we assume that this requirement has been met here.

MSC can add different access codes R1, R2, R3, etc. according to different area codes of calling users, and route to different SSPs in fixed intelligent networks, as shown in Figure 8, which is a schematic diagram of its connection.

In the case of roaming, the user number itself is 0755A, and the MSC adds the area code of the current local network according to the location area where the user initiates the service. The calling number is changed to the form of 07540755A, which can support the billing of the user's roaming situation, and also add different access codes R1, R2, R3, etc. before the called number according to the attributes of the intelligent service. There are mainly the following situations:

Embodiment 4: Different MSCs are connected to the SSP in the same fixed intelligent network

Different MSCs add the same or different access codes to route to SSPs in the same fixed intelligent network according to requirements. For the SSP in the fixed intelligent network, different access codes can correspond to different service keys and SCP addresses in the fixed intelligent network, and the prepaid service is triggered to the SCP in different fixed intelligent networks, or to the same fixed intelligent network The middle SCP runs different charging logics according to different service keys, reflecting the difference in rates between different local networks.

In the case of user roaming, the number sent by MSC contains two area codes, one is the user's visiting place, and the other is the user's home location (included in the user number, such as 07540755A), which can correctly support the user's roaming.

Embodiment 5: SSPs in different fixed intelligent networks are connected to SCPs in the same fixed intelligent network:

This will not be a problem. The access code has a corresponding relationship with the service key and the SCP in the fixed intelligent network. The SSP in the fixed intelligent network will trigger the correct prepaid service according to the address of the SCP in the fixed intelligent network.

The SCP in the fixed intelligent network performs correct billing according to the calling and called numbers sent by the SSP in the fixed intelligent network. The billing method is the same as the current mobile network.

is a standard call flow. The process will be omitted later.

Embodiment 6: Mobile Smart User Home Termination (MT) Call

Suppose two users in Shenzhen (the area code of Shenzhen is 0755), the calling user number is A, the called user number is B, and the called user roams to Shanghai (area code 020) to trigger the access code of the SSP in the fixed intelligent network to be R1. :

For the intelligent call flow of the calling party, please refer to the previous description, which is omitted here.

In this case, the called intelligent call process is shown in Figure 9, which mainly includes:

1. The call is connected to the gateway office MSC/GMSC.

2. The MSC/GMSC of the gateway office receives the call, and initiates to get the roaming number from the HLR of the called user.

3. The HLR discovers that the user is a smart user, and obtains the user's roaming number, and then the HLR returns to obtain the roaming number and the smart service identifier.

4. The GMSC finds that the user is a prepaid user, judges that the current location is in a roaming area, and connects to the SSP in the fixed intelligent network for intelligent triggering. The parameters include: the original called number 0200755B, the called number R1020C, the calling user 0755A, etc. .

5. After the SSP in the fixed intelligent network receives the call, it obtains the ServiceKey X1 according to R1, identifies that this is a called trigger prepaid user, obtains the SCP address of the user in the fixed intelligent network according to the ServiceKey, and sends an IDP message to the SCP in the fixed intelligent network , the calling number in the message is 0755A, the original called number is 0200755B, and the called number is X1020C.

6. After the SCP in the fixed intelligent network receives the message, it invokes the corresponding processing logic, checks the original called number, and finds that this is a 0755B prepaid user roaming to 020, and a 0755A user initiates a call to him, and the fixed intelligent network After the SCP charges the user B, it returns to the SSP in the fixed intelligent network.

7. After the SSP in the fixed intelligent network receives the call, the calling party is 0755A and the called party is 020C. The call continues, and the call is connected to the roaming MSC where user B is located.

If the called user does not roam, the original called number needs to be 07550755B at this time to trigger and intelligently charge the SSP in the fixed intelligent network.

Explanation: The GMSC of the gateway office fetches the roaming number. After the HLR detects the smart trigger attribute of the called party, it returns the roaming number and the smart called trigger attribute; when connecting to the SSP in the fixed intelligent network, the message contains the original Called number), called number (roaming number); in the processing logic of the SCP in the fixed intelligent network, it is known that the called party triggers, and the original called number is charged. Other processing is the same as that of the calling intelligent service.

The called call process is shown in Figure 10, mainly including:

All the devices in it are located in the place where the called user belongs, and the call flow is as follows:

1. TS receives a call from other places, checks that the calling number is 0755A, the called number is 0755B, and 0755B is a mobile subscriber, and the call is connected to the local mobile gateway office.

2. When the mobile GMSC receives the call, it initiates to get the roaming number from the HLR of the called user.

3. HLR finds that the user is a prepaid user, checks the user's current visiting place, and replaces the MSCID with the area code 020, and locally identifies that the user has taken the area code by 0755A (or A's IMSI), and then HLR returns a response message for obtaining the roaming number, indicating The user is a prepaid subscriber, currently roaming 020,

4. The GMSC finds that the user is a prepaid user, and the current location is 020. It modifies the called number to 0200755B, identifies that the user 0755B has roamed to 020, and then adds the access code R1 in front, and continues the call to the SSP in the fixed intelligent network.

5. After the SSP in the fixed intelligent network receives the call, it obtains the ServiceKey X1 according to R1, identifies this as a prepaid user, obtains the SCP address of the user in the fixed intelligent network according to the ServiceKey, and sends an IDP message to the SCP in the fixed intelligent network. The calling number is 0755A, and the called number is X10200755B.

6. After the SCP in the fixed intelligent network receives the message, it checks the calling and called numbers, and finds that this is a prepaid subscriber of 0755B roaming to 020, and a subscriber of 0755A initiates a call to him, and the SCP in the fixed intelligent network counts subscriber B. After paying the fee, return to the SSP in the fixed intelligent network, and the called number is changed to 0755B.

7. After the SSP in the fixed intelligent network receives the call, the calling party is 0755A and the called party is 0755B. The caller continues to initiate the call, and the call is connected to the gateway office.

8. After receiving the call, the GMSC finds that it is a mobile number, and initiates to fetch the roaming number again.

9. After the HLR receives the roaming number request, it checks the user data and finds that the same user once took the roaming number and returned an area code. This time, the HLR initiates the real roaming number retrieval operation to get the number 020C and returns it to the GMSC.

10. The GMSC continues to call 020C, which is already a standard call flow. The process will be omitted later.

If the called user does not roam, it is necessary to modify the called number to 07550755B at this time to trigger and intelligently charge the SSP in the fixed intelligent network.

This solution does not increase investment in the mobile intelligent network, and realizes intelligent services on the basis of users' existing fixed intelligent network equipment without increasing large investment. Its investment is small, and it can make full use of the investment in the existing intelligent network to quickly develop prepaid services.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present invention can easily think of changes or Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (5)

1. , a kind of method that on fixed intelligent network, realizes mobile intelligent service, it is characterized in that in the user data of HLR, increasing the user intelligent service sign, the IN service attribute with identifying user when the user initiates position register request, may further comprise the steps:

   A, user initiate location registers;

   B, MSC initiate to upgrade the position requests at the current place of user to HLR;

   C, HLR home position register response comprise the IN service sign that the user increases newly in this response;

   D, MSC increase access code before being identified at called number according to described IN service, according to described access code business are converged and tie SSP in operator's existing fixed intelligent network;

   E., SSP finds SCP address in corresponding service key and the fixed intelligent network according to access code in the fixed intelligent network, carries out intelligent trigger.
2. 2, the method that realizes IN service on fixed intelligent network as claimed in claim 1 is characterized in that described IN service sign, is that the standby parameter in the user data that utilizes among the HLR realizes.
3. 3, the method that on fixed intelligent network, realizes IN service as claimed in claim 1, it is characterized in that among the described step a, is user when initiating location registers, and HLR is with the field of identifying user IN service attribute, as user profile, be issued among the MSC/VLR and preserve.
4. 4, the method that realizes IN service on fixed intelligent network as claimed in claim 3 is characterized in that described steps d, further comprises:

   D1, MSC are to user's home position register response, and user data inserts VLR, comprising the IN service sign that increases newly;

   D2, the MSC beginning is exhaled the inspection user data, finds this user's IN service, and the MSC sign indicating number identifies according to IN service, increases an access code before called number, is routed to SSP in the corresponding fixed intelligent network according to this access code.
5. 5, the method that realizes IN service on fixed intelligent network as claimed in claim 1 is characterized in that also being included in the mapping table that SSP in the fixed intelligent network increases SCP address in an access code and the service key/fixed intelligent network.

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