CN1319321C - Charging method based on GPRS service - Google Patents

Abstract

The invention relates to a charging method based on general packet radio service. The present invention establishes between the GPRS core network and the data network an integrated gateway for counting data service flow and capable of analyzing data service content, and the GPRS core network only communicates with the data network through the integrated gateway, and the newly added integrated gateway equipment adopts existing The standard interface is docked with GPRS core network and data network equipment. Therefore, in order to realize the present invention, it is not necessary to upgrade and transform the existing GPRS core network equipment, nor does it need to upgrade and transform the existing data network equipment, and does not affect the stable operation of the existing network. Moreover, the newly-added integrated gateway device of the present invention unifies traffic billing and content billing at the same collection point, which makes the billing method more flexible, and can well meet the respective billing needs of telecom operators and content providers. For example, traffic only fee, content fee only, both traffic fee and content fee are calculated, and the interest relationship between the two can be well coordinated.

Description

Charging Method Based on General Packet Radio Service

technical field

The invention relates to the technical field of network communication, in particular to a charging method based on general packet radio services.

Background technique

With the development of network communication technology, intelligent, broadband, and personalized communication networks have become new demands of users and network operators. The emergence of intelligent networks is precisely to meet the diversified business needs of users and network operators. It is convenient for network operators to launch various personalized services quickly and economically, so as to increase network operation income of network operators. The intelligent network provides flexible charging and other functions for various data services. The charging function in the intelligent network is realized by the SCP (service control point). For example, for the GPRS (General Packet Radio Service, general packet radio service) network The billing of the data service generated by the user is specifically completed by the GSMSCF (Global System for Mobile Communication Service Control Function) included in the intelligent network SCP.

GPRS is a mobile packet data service developed on the basis of the existing GSM (Global System for Mobile Communications). GPRS introduces the functional entity of packet switching in the GSM digital mobile communication network to complete data transmission in packet mode. At present, many telecom operators have built their own GPRS networks in order to provide users with rich data services.

For the data services brought by 2.5G, telecom operators need to charge traffic fees for data users using the GPRS bearer network, and content providers need to charge content fees for different content provided by different users, for example, WAP (Wireless Application Protocol) provided , Web (World Wide Web), MMS (Multimedia Short Message Service) and other business content.

In the current GPRS network, the billing methods for the business services provided by telecom operators and content providers are as follows: the business traffic involved in traffic billing needs to be counted on the GPRS core network; The analysis and determination of the business content needs to be completed by the business gateway on the data network.

The process of described traffic statistics is specifically: according to the GPRS network structure as shown in Figure 1 defined by 3GPP (Third Generation Partnership Project), superimposing GPRS/SSF (GPRS Service Switching Function) at SGSN (Serving GPRS Support Node) , the traffic billing of the data service is generally triggered from the GPRS core network, and establishes the relationship of CAMEL (GSM mobile intelligent service) real-time monitoring with the SCP (service control node); that is:

The user data information stored in HLR (Home Location Register) includes GPRS-CSI (CAMEL subscription information), which is inserted into SGSN through the operation of "inserting user data"; when SGSN processes GPRS MS (GPRS user) attach request, PDP Context (packet When the data protocol context) is activated and the routing area is updated, the SGSN sends a request to the GSMSCF (GSM service control function) part according to the GPRS-CSI, and accepts the control or monitoring of the GSMSCF;

The CAP protocol is adopted between the GPRS/SSF part and the GSMSCF part, and is used for the GSMSCF part to control each PDP Context session on the GPRS/SSF part.

At the same time, the rich content provided by the content provider to the end user also needs to charge the content fee to the user. The specific charging for the service content is that when different data services pass through different service gateways, the corresponding service gateway monitors the service content. and billing; the specific process is:

On the data network, the content provider needs to pass through the relevant service gateway to transmit the corresponding service content to the mobile user; As shown in Figure 1, the described content provider includes DS (download server), CP (streaming media server), VS (Video Server) etc.); said business content includes WAP (Wireless Application Protocol) browsing, Java downloading etc. carried by WAP protocol, and WAPGW (Wireless Application Protocol Gateway) can monitor the transmission of content. The service gateway related to the data service can monitor the content interaction process. Therefore, the service gateway initiates a content charging request to the GSMSCF before the content is transmitted. After the user receives the content, the service gateway sends a content interaction status report to the GSMSCF to realize the corresponding content. Billing.

The traffic billing method based on the GPRS core network in the prior art needs to cooperate with the content billing method provided on the data network to meet various billing requirements for different users. For example, some telecom operators need to only count Traffic fee; or only content fee; or both traffic fee and content fee.

According to the definition of the standard 3GPP specification, the GPRS core network can only monitor the user's one-time online process; or one-time PDP activation and deactivation process of the user. In content billing, billing is often performed for a specific application content. For example, the content approval price of each picture on a CP can be different. When users browse or download different pictures, they need to be billed separately.

If only content costs are counted. The traffic accounting service on the GSMSCF is monitored according to all the traffic of a PDP session when the user accesses the Internet. The relevant flow of charging content on the GSMSCF cannot be identified in the CAMEL control relationship between the SGSN and the GSMSCF.

Moreover, in the above implementation solution, it is necessary to upgrade and support the GPRS/SSF function on the SGSN entity in the existing GPRS network. However, SGSN equipment may be produced by multiple manufacturers, and the functions of upgrading GPRS/SSF of the SGSN equipment of each manufacturer also have certain differences. At the same time, there is a CAMEL interface compatibility test problem between GSMSCF and SGSN/SSF of other manufacturers.

It can be seen from the description of the existing technical solution that it is difficult to implement a flexible charging solution using the existing technology, which cannot meet the charging requirements of the GPRS network.

Contents of the invention

In view of the problems existing in the above-mentioned prior art, the purpose of the present invention is to provide a charging method based on general packet radio service, thereby making it possible to quickly and effectively build a charging method that supports traffic charging in an intelligent network based on GPRS technology. , It also supports the method of content billing.

The purpose of the present invention is achieved through the following technical solutions:

A charging method based on GPRS according to the present invention, comprising:

A, set up integrated gateway, GPRS (General Packet Radio Service) core network only communicates with external network through this integrated gateway;

b. When the GPRS core network communicates with the external network through the integrated gateway, the integrated gateway needs to analyze the data service content in the communication process, count the corresponding content or flow processing according to the charging rules, and communicate with the SCP of the intelligent network according to the statistical results (service control point) for information interaction;

c. The SCP of the intelligent network charges each data service that occurs according to the information interaction with the integrated gateway.

In the present invention:

Described step a is: set up between the GPRS core network and the data network and be used for analyzing the comprehensive gateway of data business content and statistics corresponding flow;

Described step b is: when the user visits the data network through the GPRS core network, the integrated gateway will analyze and determine the content of the data service passed through, and count the traffic of the data service of each different content respectively, according to the statistical result and the corresponding data service. Information exchange is performed between the content information and the SCP of the intelligent network.

Described step b comprises:

b1. When the user accesses the data network through the GPRS core network, the integrated gateway reports the user's access request information to the SCP of the intelligent network;

b2. The SCP of the intelligent network determines the monitoring parameters for the user according to the user's access request information, and sends them to the integrated gateway, and the integrated gateway performs information interaction with the SCP according to the monitoring parameters issued by the SCP.

The monitoring parameters are: allowed data service flow value, allowed data service duration value or allowed data service cost value.

In the present invention, when charging for the flow of data services, the step b2 includes:

b21. The SCP of the intelligent network determines the traffic allowed for the data service of each different content of the user according to the user's access request information, and sends it to the integrated gateway; or, the SCP of the intelligent network determines the flow for the user according to the user's access request information The allowable charges for data services with different contents are issued to the integrated gateway, and the integrated gateway determines the allowable flow of the corresponding data services according to the allowable charges;

b22. The integrated gateway performs content analysis on the passing data services for the user, and counts the traffic of the data services of each content respectively;

b23. The integrated gateway judges whether the traffic generated by the data services of each content exceeds the allowed traffic, and if so, reports a message to the SCP; otherwise, the integrated gateway continues to count the traffic generated by the data services of each content.

Said b includes: the integrated gateway performs content analysis on the passed data service for the user, and judges whether the data service of the corresponding content needs to be charged for traffic, if necessary, counts the traffic generated by the data service of the content, otherwise , there is no need to count the traffic generated by the data service of this content.

In the present invention, when charging for the content of the data service, the step b2 includes:

b24. The SCP of the intelligent network determines the monitoring parameters for the corresponding data services of the user according to the content information of each data service reported by the integrated gateway;

b25. The integrated gateway monitors the data service according to the delivered monitoring parameters, and reports the monitoring result to the SCP.

The access request information carries the user's MSISDN (Mobile Station International ISDN Number), IMSI (International Mobile Subscriber Identifier) or APN (Access Point Name) information.

Described step b2 also includes:

The SCP of the intelligent network authenticates the user according to the access request information of the user, and only determines the corresponding monitoring parameters according to the access request information of the authenticated user, and sends it to the integrated gateway.

Described step c comprises:

According to the charging information reported by the integrated gateway, the SCP of the intelligent network charges the data services of the users according to different charging strategies, and deducts the corresponding fees from the user accounts in real time.

The control protocol adopted between the integrated gateway and the SCP includes: CAMEL (GSM mobile intelligent service) protocol, Radius (remote) protocol or message operation based on TCP/IP (Transmission Control Protocol/Internet Protocol) self-definition.

Described data content is data service application type, specifically: WAP (Wireless Application Protocol) data application, Web (World Wide Web) data application, MMS (Multimedia Short Message Service Center) data application, EMAIL (email) data application or streaming media business applications.

As can be seen from the technical scheme provided by the present invention above, the present invention has adopted the technical scheme of setting up an integrated gateway between the GPRS core network and the data network, and the GPRS core network only communicates with the data network through the integrated gateway, and the newly added integrated gateway The equipment uses the existing standard interface to connect with the GPRS core network and data network equipment, so there is no need to upgrade the existing GPRS core network equipment, nor does it need to upgrade the existing data network equipment, and it does not affect the stable operation of the existing network.

In the present invention, the newly added integrated gateway equipment is at the convergence layer and can support WAP, Web, RTP and other application protocols, so the network equipment within the coverage of the integrated equipment does not need to be upgraded to CAMEL3. That is, the integrated gateway completes the statistics of the data service flow and reports it to the GSMSCF service control point to complete the billing. It is not necessary to upgrade the CAMEL interface of the GPRS core network equipment on the existing network to complete traffic billing. Therefore, the implementation cost of the method of the present invention is lower than that of the traditional method.

In addition, in the present invention, the newly added integrated gateway device is a unified collection point for flow accounting and content accounting. If it is found that the content-related traffic does not need to be counted, the content-related traffic may not be included in the total traffic or the traffic of each data service. Therefore, there is no need to make up for the traffic related to the data service content, which can well meet the respective charging needs of the telecom operator and the content provider, and can well coordinate the interest relationship between the two.

Description of drawings

FIG. 1 is a schematic diagram of a network structure of a general packet radio service in the prior art.

Fig. 2 is a schematic diagram of the network structure of the general packet radio service in the present invention.

Fig. 3 is a flowchart 1 of the method of the present invention.

Fig. 4 is a flowchart 2 of the method of the present invention.

Detailed ways

Now take the billing method for GPRS network users to access IP data network as an example to describe the specific embodiments of the present invention in detail.

The main idea of the present invention is to add an integrated gateway between the GPRS core network and the IP data network, and the GGSN outlet of the GPRS core network is only connected to the integrated gateway. Described integrated gateway can analyze the content of the passing data service, promptly can resolve all data service applications passing through, comprise: WAP, Web, MMS (multimedia short message service), Java Download; Applications such as Video Streaming (video data flow); At the same time, the integrated gateway can also count the traffic values generated by various data service applications, and perform information interaction with the SCP of the intelligent network according to the results of analysis and statistics, so as to realize flexible calculation of various data services for users. Charges, that is, to establish flexible charging rules, the charging rules include charging the traffic and content of the data service at the same time, or only charging the traffic or content of the data service, etc.

That is to say, various data service flows or duration monitoring and charging interfaces are provided between the integrated gateway of the present invention and the GSMSCF (Global System for Mobile Communications Service Control Function) part included in the SCP of the intelligent network. At the same time, charging interfaces for various data service contents are also provided between the integrated gateway and the GSMSCF part.

Moreover, the integrated gateway of the present invention triggers the flow monitoring function of its own GPRS/SSF (GPRS Service Switching Function) part according to the user's access request information, and the described access request information includes the user's MSISDN (Mobile Station International ISDN Number) number, IMSI (International Mobile Subscriber Identifier) number segment and APN (Access Point Name), etc.

In addition, the integrated gateway can support data services carried by WAP, HTTP (Hypertext Transfer Protocol), RTP (Real-time Transport Protocol) and RTSP (Real-time Streaming Protocol), and adopts a standard interface to communicate with the existing GPRS core The network equipment of the network and the data network are docked, therefore, the implementation of the present invention does not need to carry out major transformation on the existing communication network, and the implementation cost is relatively low.

The specific implementation of the charging method based on general packet radio service described in the present invention is shown in the accompanying drawings, including the following steps:

As shown in Figure 2, at first it is necessary to set up an integrated gateway between the GPRS core network and the data network, so that the user can accurately carry out corresponding billing when accessing the data service application provided by the data network through the GPRS core network. Flexible billing can be performed based on the traffic and content of data services.

After the integrated gateway is established, when a user (such as a mobile station, etc.) accesses various data service applications provided by the data network through the GPRS core network, step 31 is performed.

Step 31: MS (Mobile Station) initiates a PDP (Packet Data Protocol) context activation request to GGSN (Gateway GPRS Support Node), that is, sends an "Activate PDP ContextRequest" message to GGSN, requesting to establish a connection.

Step 32: GGSN initiates a remote start charging operation to the integrated gateway, that is, the GGSN sends a "Radius Account Start" message to the integrated gateway, notifying the integrated gateway that there is a new user accessing the network and requesting to establish a connection, so as to facilitate the integration between the integrated gateway and the intelligent network. The SCP (service control node) performs information exchange to make preparations for charging the data services generated by the user.

Step 33: The integrated gateway initiates an operation of requesting GPRS data processing to the SCP, that is, sends an "Initial DP GPRS" message to the SCP.

Step 34: The SCP sends a GPRS event request response to the integrated gateway, that is, sends a "Request Report GPRS Event" message to the integrated gateway.

Step 35: The SCP performs authentication processing on the user, and after the user is authenticated, the SCP estimates the monitoring traffic or monitoring time for different data services according to the user's fee balance. The different data services include WAP , Web, MMS, Java Download, Video Streaming, etc., and then send the budgeted monitoring traffic or monitoring time of each data service to the integrated gateway, that is, by sending the "Apply Charging GPRS" message to the integrated The monitoring traffic or monitoring time of different businesses of the user;

In this step, the SCP can also directly issue a corresponding amount of fees to the integrated gateway as a monitoring parameter, and the integrated gateway will monitor the passing data service content according to the amount of the issued fee, and perform corresponding billing, and then report the result Inform the SCP, for example, firstly, the integrated gateway determines the flow or duration of the data service content that is allowed to be accessed by the user according to the issued fee amount, and then, the integrated gateway makes statistics on the flow or duration of the corresponding data service content, and according to The determined allowable traffic or the length of time is processed accordingly; the difference between sending the amount of fees to the integrated gateway as a monitoring parameter and directly sending the traffic or the length of time as a monitoring parameter is that it needs to be processed at the integrated gateway to determine the traffic or the length of time .

Step 36: The SCP sends a "Continue GPRS (continue GPRS data processing)" message to the integrated gateway. After the integrated gateway receives the message, it can continue the user's process of accessing the data network through the GPRS network.

Step 37: The integrated gateway sends a remote accounting start notification to the GGSN, that is, sends a remote accounting request response message to the GGSN, and the GGSN accepts the "Radius Account Start (remote accounting start)" response message sent by the integrated gateway, and executes the steps 38.

Step 38: The GGSN returns an activation PDP context acceptance message to the MS, that is, sends a response message to the MS to activate the PDP context request, and the MS can perform GPRS services after receiving the message.

Step 39: Interaction of data application between MS and CP (Content Provider)/Java Download Engine (Java program download)/Video Server/MMSC (Multimedia Short Message Service Center) of the data network;

While executing step 39, the integrated gateway needs to separately count the flow or duration of each data service, and determine whether the flow value or duration of each data service exceeds the corresponding value in the monitoring parameters sent by the SCP to the integrated gateway. If the flow or duration of a certain data service exceeds the corresponding monitoring flow value or monitoring duration in the monitoring parameters, step 310 is executed.

Step 310: Report the actual used flow or duration of each data service to the SCP through the "ApplyCharging Report GPRS (monitoring result)" message. SCP charges for the actual traffic value or time consumed by each data service, and deducts the total cost of each data service from the user account;

After step 310 is executed, the SCP judges whether there is any remaining fee in the user's account, which is used to continue to pay the fee for accessing the data service. The business budget monitors traffic or monitoring time, and sends the monitoring traffic or monitoring time of each data service to the integrated gateway. This process is looped until there is no remaining fee in the user account or the user requests to end the process of accessing the data network, and then step 311 is executed;

If the integrated gateway finds that the traffic charged by the content does not need to be charged, it will count the traffic of this content as 0.

Step 311: The MS initiates a deactivation PDP context request to the GGSN, that is, sends a "Deactivate PDP Context Request" message to the GGSN to deactivate the activated PDP context and terminate the data service access process.

Step 312: After receiving the request from the MS to deactivate the PDP context, the GGSN initiates a remote accounting stop operation to the integrated gateway, that is, the GGSN sends a "RadiusAccount Stop" message to the integrated gateway.

Step 313: After the integrated gateway receives the above message, it reports the traffic or duration actually used by each data service to the SCP through the "Apply Charging Request GPRS (report monitoring result)" message; and the actual usage traffic of each data service reported by the SCP or duration to calculate the corresponding fees, and then deduct the total fees actually used by all data services from the user's account to complete the billing for GPRS network users.

Step 314: The integrated gateway reports an "Event Report GPRS (GPRS event report)" message to the SCP, notifying the Request Report GPRS event report issued in step 34 to the SCP.

Step 315: After receiving the above message, the SCP sends a "Release GPRS (release GPRS call)" message to the integrated gateway.

Step 316: After receiving the message delivered in step 315, the integrated gateway sends a response to the remote accounting stop message to the GGSN, and the GGSN receives a response to the "Radius AccountStop" message sent by the integrated gateway.

Step 317: After receiving the response message, the GGSN sends a response to deactivate the PDP context to the MS, and the MS receives the response to deactivate the PDP context.

Through above-mentioned processing procedure of step 31 to step 317, realized charging based on GPRS, promptly realized the accurate charging to GPRS network user's visit data network, and flexible charging mode can be adopted in the charging process, to satisfy Different network access billing requirements.

It can also be seen from the above further description for the present invention that since the present invention uses a unified integrated gateway to count the content and flow of data services, the flow-based charging method and the content-based charging method can be With flexible adjustment on the integrated gateway, both traffic-based and content-based billing can be performed for the data services that occur, or only traffic-based or content-based billing can be performed for the data services that occur, which is convenient for network operators according to actual needs Provide users with richer and more flexible billing methods.

The present invention will be further described below in conjunction with a specific content billing example, as shown in Figure 4:

Step 41: The MS initiates a data request to the GGSN, requesting access to various data services of the data network.

Step 42: After receiving the data request from the MS, the GGSN forwards the user's data request to the integrated gateway.

Step 43: After receiving the user's data request, the integrated gateway parses the user's data request URL (designated information location), and judges whether the data request needs to be charged according to the content, and if content charging is required, then initiate the content to the SCP fee withholding request, and at the same time further judge whether the content needs traffic accounting. If so, it is necessary to initiate a traffic fee withholding request to the SCP so that traffic accounting can be performed according to the results of traffic statistics; otherwise, the content does not If it is necessary to count the flow, the flow of this content will not be counted in the flow charging process; it can be seen that the present invention solves the problem of cooperation between data service content charging and flow charging.

Step 44: After the SCP completes the billing of the data service content, it responds to the integrated gateway with the result of the withholding fee. If the withholding fee is successful, perform step 45. Otherwise, directly return the withholding fee failure message and re-withhold the fee Operate or end the data service access process.

Step 45: After the SCP successfully executes the withholding fee operation, it forwards the user's data request to a server in the data network that provides corresponding data services, such as CP/Java Download Engine/VideoServer (video server).

Step 46: After receiving the above message, the server providing the corresponding data service sends the content of the data request to the integrated gateway, that is, the CP/Java Download Engine/Video Server etc. send the data to the integrated gateway after receiving the data request The specific data business content required by the request.

Step 47: After receiving the data service content from the server providing the corresponding data service, the integrated gateway continues to deliver the data service content to the MS, and executes step 48 after the data service content delivery is completed.

Step 48: After the integrated gateway delivers the data service content to the MS, the SCP reports the data service content delivery status report, and the status report records whether the data service content is successfully delivered to the MS.

Step 49: After receiving the status report, the SCP judges whether the integrated gateway has successfully delivered the corresponding data service content according to the content of the status report. The fees withheld from the user's account are added back to the user's account. Otherwise, the SCP accesses the transaction records for this data service and generates corresponding bills. At the same time, the SCP also needs to send a status report response message to the integrated gateway.

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 (12)

1. A charging method based on GPRS, characterized in that it comprises: a. Establish an integrated gateway through which the GPRS core network communicates with the external network; b. When the GPRS core network communicates with the external network through the integrated gateway, the integrated gateway needs to analyze the data service content in the communication process according to the charging rules, count the corresponding content or flow, and communicate with the service control point of the intelligent network according to the statistical results SCP for information exchange; c. The SCP of the intelligent network charges each data service that occurs according to the information interaction with the integrated gateway. 2. The charging method based on GPRS according to claim 1, characterized in that: Described step a comprises: between the GPRS core network and the data network, set up an integrated gateway for analyzing data service content and counting corresponding traffic; Described step b comprises: when the user accesses the data network through the GPRS core network, the integrated gateway will analyze and determine the content of the data service passed through, and count the traffic of the data service of each different content respectively, according to the statistical result and the corresponding data service Information exchange is performed between the content information and the SCP of the intelligent network. 3. The charging method based on GPRS according to claim 1 or 2, characterized in that said step b comprises: b1. When the user accesses the data network through the GPRS core network, the integrated gateway reports the user's access request information to the SCP of the intelligent network; b2. The SCP of the intelligent network determines the monitoring parameters for the user according to the user's access request information, and sends them to the integrated gateway, and the integrated gateway performs information interaction with the SCP according to the monitoring parameters issued by the SCP. 4. The billing method based on GPRS according to claim 3, characterized in that said monitoring parameters are: allowable data service flow value, allowable data service duration value or allowable data service occurrence time cost value. 5. The charging method based on GPRS according to claim 3, characterized in that, when charging for data service traffic, said step b2 includes: b21. The SCP of the intelligent network determines the traffic allowed for the data service of each different content of the user according to the user's access request information, and sends it to the integrated gateway; or, the SCP of the intelligent network determines the flow for the user according to the user's access request information The allowable charges for data services with different contents are issued to the integrated gateway, and the integrated gateway determines the allowable flow of the corresponding data services according to the allowable charges; b22. The integrated gateway performs content analysis on the passing data services for the user, and counts the traffic of the data services of each content respectively; b23. The integrated gateway judges whether the traffic generated by the data services of each content exceeds the allowed traffic, and if so, reports a message to the SCP; otherwise, the integrated gateway continues to count the traffic generated by the data services of each content. 6. The charging method based on GPRS according to claim 1, characterized in that said b includes: The integrated gateway analyzes the content of the passed data service for the user, and judges whether the data service of the corresponding content needs to be charged for traffic. Traffic generated by data services. 7. The charging method based on GPRS according to claim 3, characterized in that, when charging for the content of the data service, the step b2 includes: b24. The SCP of the intelligent network determines the monitoring parameters for the corresponding data services of the user according to the content information of each data service reported by the integrated gateway; b25. The integrated gateway monitors the data service according to the delivered monitoring parameters, and reports the monitoring result to the SCP. 8. The charging method based on GPRS according to claim 3, characterized in that the access request information carries the user's mobile station international ISDN number MSISDN, international mobile subscriber identifier IMSI or access point Name APN information. 9. The charging method based on GPRS according to claim 3, characterized in that said step b2 further comprises: The SCP of the intelligent network authenticates the user according to the access request information of the user, and only determines the corresponding monitoring parameters according to the access request information of the authenticated user, and sends it to the integrated gateway. 10. The charging method based on GPRS according to claim 1, characterized in that said step c comprises: According to the charging information reported by the integrated gateway, the SCP of the intelligent network charges the data services of the users according to different charging strategies, and deducts the corresponding fees from the user accounts in real time. 11. The charging method based on GPRS according to claim 1, characterized in that the control protocol adopted between the integrated gateway and the SCP includes: GSM mobile intelligent service CAMEL protocol, remote Radius protocol or transmission-based Control Protocol/Internet Protocol TCP/IP custom message operations. 12. The billing method based on GPRS according to claim 1, characterized in that said data content is a data service application type, specifically: WAP data application, World Wide Web data application, multimedia Short message service center MMS data application, email EMAIL data application or streaming media service application.