CN100591018C - Service control device, roaming charging system and roaming charging method - Google Patents

Abstract

The present invention relates to a roaming billing method, comprising: step 1, when receiving multimedia message service request information sent by a mobile terminal user, querying the current geographic location information of the mobile terminal, and according to the geographic location information and the content of the multimedia message, Carry out charging and deduction for the multimedia message service; step 2, send the multimedia message. The present invention also provides a service control device and multiple roaming charging systems for realizing the above roaming charging method. The roaming billing system and roaming billing method provided by the present invention realize the real-time billing of prepaid MMS, which avoids the situation that MS users maliciously use MM and overdraws prepaid fees, and facilitates MMS operators and MS users .

Description

Service control device, roaming charging system and roaming charging method

technical field

The invention relates to a multimedia message service (Multimedia Messaging Service, MMS) charging technology, in particular to a service control device, a roaming charging system and a roaming charging method.

Background technique

GPRS (General Packet Radio Service, General Packet Radio Service) is a mobile packet data service developed on the basis of the existing GSM (Global System of Mobile communication, Global System for Mobile Communications). The functional entity of packet switching is introduced to complete data transmission in packet mode. In order to provide users with rich and colorful data services, at present, many telecom operators have built their own GPRS networks. Among the various data services provided by the GPRS network, MMS is a further development of Short Message Service (Short Message Service, SMS), Picture Message (Picture Message, PM) or Enhanced Message Service (EnhancedMessage Service, EMS). Communication Services provides a complete end-to-end solution. In terms of communication content, Multimedia Messaging (MM) is not limited to text information, but can also include richer data such as images, audio, and video; in terms of functions, MMS covers end-to-end, end-to-application, application Multimedia message communication to terminals. Therefore, MMS not only realizes the information transfer between terminals, between terminals and applications, but also realizes the diversity of content, and can realize the most perfect multimedia short message service. It is the highest standard in the current short message technology. It provides great convenience for users, and has become the most frequently used short message service by users.

Due to various reasons, mobile terminal (Mobile Station, MS) users often roam. When a prepaid mobile terminal user uses MMS in a roaming state, the prior art carries out roaming charging for MMS through the roaming charging system of MMS shown in Figure 1, and its specific charging method is as follows: MMS User Agent A (MMS User Agent) sends the MM sent by the user through the MS to the sender's multimedia message service center (Multimedia Messaging Service Center, MMSC) through the MM1 interface, that is, the MMS Relay/Server in Figure 1; Register, HLR) obtains and stores the subscription information of the MS user sending the MM and its current location information, and then sends the MM to the receiving party MMSC through the MM4 interface, that is, the 'Foreign' MMS Relay/Server in Figure 1; receiving After sending the MM to the receiver's mobile terminal through the receiver's MMS user agent B, the receiving party's MMSC returns the message that the MM has successfully sent the MM to the receiving party's MMSC; After the successful sending of the MM message returned by the party MMSC, the current location information of user A, the number information of user A and the number information of user B are recorded in the bill; the billing system (Billing System in Figure 1) periodically Collect the bill stored in the MMSC of the sending party, and perform roaming charging for user A according to the location information of user A recorded in the bill.

When the roaming billing system in the prior art is used to carry out roaming billing for the prepaid MMS, there are the following defects and deficiencies:

1) There is no real-time charging interface between the billing system and MMSC in the prior art, and it is impossible to perform real-time billing for prepaid MMS, and there is a lag in roaming billing for MMS, which cannot avoid the malicious behavior of some MS users. Using MM to overdraw the prepaid fee may bring economic losses to MMS operators, and at the same time, it is not convenient for MS users to know the balance on their accounts in real time;

2) It is necessary to modify the MMSC, and develop a signaling interface with the HLR on the MMSC to obtain the current location information of the prepaid mobile terminal user, which increases the complexity of the MMSC;

3) In the prior art, the MMSC is mainly used to store and process MMs in and out of the MMSC, and to send MMs on the network. In order to charge the MMS sent by the prepaid MS user, the MMSC will It is necessary to obtain the current location information of the MS user from the HLR through signaling, which will affect the work efficiency of the MMSC, reduce its work performance, and increase the time delay for the receiver MS to receive MM, which will bring great inconvenience to the MS user .

Contents of the invention

The technical problem to be solved by the present invention is, aiming at the defects and deficiencies that the billing system in the prior art cannot perform real-time roaming billing for MMS, the present invention provides a service control device, a roaming billing system and a roaming billing method to overcome This defect and deficiency exist in the prior art.

In order to solve the above technical problems, a roaming charging method provided by the present invention includes:

Step 1: When receiving the multimedia message service request information sent by the mobile terminal, query the current geographic location information of the mobile terminal user, and charge and deduct the multimedia message service according to the geographic location information and the content of the multimedia message. The geographic location information is stored in the address information storage device by the service control point or the multimedia message service center; step 2, sending the multimedia message.

In the above method, the step 1 specifically includes: after receiving the multimedia message service request information, the multimedia message service center judges whether the mobile terminal user is prepaid according to the user information stored in the home location register of the mobile terminal If the user is yes, query the geographic location information of the mobile terminal user, and the service control point charges and deducts the multimedia message service according to the geographic location information and the content of the multimedia message; otherwise, ends the operation.

In the above method, before the step 1, an operation of storing the geographic location information in the home location register of the mobile terminal is also performed. Wherein, storing the geographical location information in the home location register of the mobile terminal includes: when the mobile terminal attaches to the visited network, sending a request message for activating PDP context to the serving GPRS support node in the visited place; The node obtains the address information of the gateway GPRS support node/service switching node at the home of the mobile terminal according to the information of the international mobile user identifier and service access point name carried in the activation PDP context request information, and sends the address information of the gateway GPRS support node/service switching node to the gateway GPRS support node/service switching node. The switch node sends request information for creating a PDP context; the visited service GPRS support node stores the geographic location information of the mobile terminal user in the home location register of the mobile terminal.

The method also includes: the gateway GPRS support node/service switching node obtains the geographic location information from the request information for creating a PDP context, and sends the geographic location information to a service control point; the service control point sends The geographic location information is stored in the address information storage device. Correspondingly, the step 1 specifically includes: after receiving the multimedia message service request information sent by the mobile terminal, the multimedia message service center sends charging request information for charging the multimedia service to the service control point, and the charging request The information carries the international mobile user identifier and the multimedia message; the service control point queries the geographic location information of the mobile terminal user from the address information storage device, and according to the geographic location information and the multimedia message Content, according to the preset charging rate, determine the cost of the multimedia service, and deduct the cost from the account corresponding to the international mobile subscriber identity.

In addition, the method further includes: the gateway GPRS support node/service switching node obtains the geographic location information from the request information for creating a PDP context, and sends the geographic location information to the multimedia message service center; The message service center stores the geographic location information in the address information storage device. Correspondingly, the step 1 specifically includes: after receiving the multimedia message service request information sent by the mobile terminal, the multimedia message service center queries the IP address information of the mobile terminal from the address information storage device, and then sends the IP address information to the service control point Sending charging request information for charging the multimedia service, the charging request information carrying the international mobile subscriber identity, the geographical location information and the multimedia message; the service control point according to the geographical location According to the location information and the content of the multimedia message, the fee of the multimedia service is determined according to the preset charging rate, and the fee is deducted from the account corresponding to the IMSI.

The step 2 is specifically: after the multimedia message service center receives the billing result information of the successful deduction of the fee sent by the service control point, according to the receiver's number information carried in the multimedia message service request information, the The above multimedia message is sent to the receiver's mobile terminal.

After the step 2, it also includes: the multimedia message service center generates sending result information and sends it to the service control point according to whether the multimedia message service center receives the result information of receiving the multimedia message returned by the recipient mobile terminal; The service control point judges whether the multimedia message is successfully sent, and if yes, sends the billing confirmation result information to the multimedia message service center; otherwise, returns the fee deducted from the account corresponding to the international mobile subscriber ID for this multimedia service to added to this account.

In order to solve the above-mentioned technical problems, the first roaming charging system provided by the present invention includes a service control point set in the mobile intelligent network, and a home location register of the mobile terminal set in the core network, and set in the IP data network In the multimedia service center, the multimedia service center is connected to the home location register, and is used to obtain the geographic location information of the mobile terminal user from the home location register after receiving the multimedia message service request information, and Sending charging request information for charging the multimedia message service to the service control point, and charging and deducting the multimedia message service at the service control point according to the geographic location information and the content of the multimedia message After the fee is charged, the multimedia message is sent.

In order to solve the above-mentioned technical problems, the second roaming billing system provided by the present invention includes a service control point set in the mobile intelligent network, a mobile terminal home location register set in the core network, and a mobile terminal set in the IP data network. In the multimedia service center, the service control point is connected to the home location register, and is used to receive the charging information for the multimedia message service sent by the multimedia service center when receiving the multimedia message service request information sent by the mobile terminal Charging request information, obtaining the geographic location information of the mobile terminal user from the home location register, and performing charging, deduction, and chargeback on the multimedia message service according to the geographic location information and the content of the multimedia message repair.

In order to solve the above technical problems, the present invention provides a service control device with the function of providing geographical location information, which includes a service control point, and the service control point is also connected to an address information storage device for storing the geographical location information of mobile terminal users , so that the service control point, after receiving the charging request information for charging the multimedia message service sent by the multimedia service center when receiving the multimedia message service request information sent by the mobile terminal, according to the address information storage device The geographic location information of the mobile terminal user and the content of the multimedia message stored in the mobile terminal user are charged and deducted for the multimedia message service.

In order to solve the above-mentioned technical problems, the third roaming billing system provided by the present invention includes the home location register of the mobile terminal set in the core network, the multimedia service center set in the IP data network, and the mobile intelligent network set In the service control equipment with the function of providing geographic location information, the service control equipment includes a service control point connected to each other and an address information storage device, the address information storage device is used to store the geographic location information of mobile terminal users, and the service The control point is used to receive the charging request information for charging the multimedia message service sent by the multimedia service center when receiving the multimedia message service request information sent by the mobile terminal, and obtain the mobile terminal user's address information from the address information storage device. geographical location information, and according to the geographic location information and the content of the multimedia message, the multimedia service is billed, charged, and charged.

In order to solve the above-mentioned technical problems, the fourth roaming charging system provided by the present invention includes a service control point set in the mobile intelligent network, a mobile terminal home location register set in the core network, and a mobile terminal set in the IP data network. The multimedia service center in the home gateway GPRS support node/service switching node is used to store the geographic location information of the mobile terminal user, so that the multimedia service center receives the multimedia message service sent by the mobile terminal After requesting the information, obtain the geographic location information of the mobile terminal user from the address information storage device through the WAP gateway, and request the service control point to charge the multimedia service according to the geographic location information and the content of the multimedia message, Deduction.

Based on the above technical scheme, the present invention has the following beneficial technical effects:

1) The present invention establishes a roaming billing system based on a mobile intelligent network. When the MMSC receives the MMS request information sent by the MS, it can obtain the current geographic location information of the MS in real time, thereby realizing real-time billing of the prepaid MMS. This avoids the situation that MS users maliciously use MM and overdraws the prepaid fee, which is convenient for MMS operators and MS users;

2) In the second, third and fourth roaming charging systems provided by the present invention, MMSC does not need to carry out signaling interaction with HLR, therefore, it is not necessary to develop a signaling interface with HLR on MMSC, avoiding the existing The complexity of technology for MMSC transformation, and avoid the compatibility test between MMSC and HLR produced by different manufacturers, reduce the cost of MMSC transformation, and avoid the investment of compatibility test between MMSC and HLR;

3) When the MS roams to a new network, store the geographical location information of the MS in the visited network, and then, when the MS initiates an MMS request information in the visited network, it can directly use the stored geographical location information of the MS information for roaming billing, without requiring the MS to query its geographic location information every time it uses MMS, compared with the existing technology, it improves the work efficiency of the roaming billing system, reduces the delay in sending MM, and facilitates MS users.

The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

Description of drawings

FIG. 1 is a schematic structural diagram of an MMS roaming charging system in the prior art.

Fig. 2 is a basic flowchart of the roaming charging method of the present invention.

FIG. 3 is a schematic structural diagram of Embodiment 1 of the roaming charging system of the present invention.

FIG. 4 is a flow chart of Embodiment 1 of the roaming charging method of the present invention.

FIG. 5 is a schematic structural diagram of Embodiment 2 of the roaming charging system of the present invention.

FIG. 6 is a flow chart of Embodiment 2 of the roaming charging method of the present invention.

Fig. 7 is a schematic structural diagram of an embodiment of a service control device with a geographic location information providing function according to the present invention.

FIG. 8 is a schematic structural diagram of Embodiment 3 of the roaming charging system of the present invention.

FIG. 9 is a flow chart of Embodiment 3 of the roaming charging method of the present invention.

FIG. 10 is a signaling diagram of Embodiment 3 of the roaming charging system of the present invention.

FIG. 11 is a schematic structural diagram of Embodiment 4 of the roaming charging system of the present invention.

FIG. 12 is a flow chart of Embodiment 4 of the roaming charging method of the present invention.

Detailed ways

The present invention is a system and method for real-time roaming charging of MMS initiated by a prepaid MS user. Its core idea is to establish a roaming charging system based on a mobile intelligent network, and when the MS roams and attaches to a new visiting location After the network, store the current geographical location information of the MS. When receiving the MMS request from the MS, query the geographical location information, and charge and deduct the MMS according to the geographical location information and the MM content in the MMS request. .

Fig. 2 shows the basic flowchart of roaming billing method of the present invention, and it comprises the following steps:

Step 1: When receiving the MMS request information sent by the MS, query the current geographic location information of the MS user, and determine the current MMS according to the geographic location information and the MM content in the MMS request information, according to the preset charging rate. , which will be debited from the MS user's account.

Step 2: Send the MM to the recipient MS according to the recipient's number information carried in the MMS request message.

When the MMS request information sent by the MS is received, the current geographic location information of the MS user is obtained in real time, and real-time roaming billing for MMS is realized, thereby avoiding the situation that the MS user maliciously uses MM and overdraws the prepaid fee, and facilitates MMS Operators and MS users.

Fig. 3 is a schematic structural diagram of Embodiment 1 of the roaming charging system of the present invention, the system includes SCP (Service Control Point, service control point) 1 set in the mobile intelligent network, the sender MS set in the core network Home HLR2, home SGSN (Serving GPRSSupporting Node, serving GPRS support node) 3, home GGSN/SSP4 composed of superposition of GGSN (Gateway GPRSSupporting Node, gateway GPRS support node) and SSP (Service Switch Point, business switching point) And visit SGSN5, WAP (Wireless Application Protocol, wireless application protocol) GW (Gateway, gateway) 5 and MMSC7 set in the IP data network, home HLR2, home SGSN3, home GGSN/SSP4, WAP GW6, MMSC7 It communicates with SCP1 in sequence, the visiting SGSN5 communicates with the home GGSN/SSP4, and the MMSC7 also communicates with the home HLR2. Wherein, the home HLR2 is used to store the subscriber information of all home MSs, such as: the number of the MS (such as: IMSI (International Mobile Subscriber Identity, International Mobile Subscriber Identity) and MSISDN (International Identity Number of Mobile Station)) and user category ( For example: prepaid user), and the relevant dynamic data information of each MS user at home, including: the current geographical location information of the MS user, that is: the IP address information of the SGSN where the MS user is currently located, the supplementary information assigned to the user Business, etc.; MMSC7 is used to obtain the current geographic location information of the MS user who sent the MMS from the home HLR2 when receiving the MMS request information, and send the charging request information for charging the MMS to SCP1. Interaction of signaling between MMSs and MMS forwarding.

After the MS roams and attaches to a new network, it sends an activation PDP (Packet Data Protocol, packet data protocol) context request message to the SGSN5 in the visited network, and the activation PDP context request information carries the MS's IMSI, MSISDN, APN (Service Access Point Name), QoS (Quality of Service) and other information. The SGSN5 in the visited network searches the address of the corresponding GGSN/SSP4 in the home network from the MS's home HLR2 according to the IMSI and APN information carried in the activation PDP context request message, and sends the create PDP context to the home GGSN/SSP4 A request message, the create PDP context request message carries the MS's IMSI, MSISDN and IP address information of the visited SGSN5. The home GGSN/SSP4 instructs the visited SGSN5 to allocate radio resources for signaling connections to the MS. After allocating wireless resources to the MS, the visited SGSN5 sends the MS's current geographic location information, ie, the IP address information of the visited SGSN5, to HLR2 for storage by HLR2. Afterwards, when the MS initiates an MM request, the MMS can be charged through the flow shown in FIG. 4 or FIG. 6 .

Figure 4 is a flow chart of Embodiment 1 of the roaming charging method of the present invention, which can be implemented based on the system shown in Figure 3, and includes the following steps:

Step 401, when the MS initiates an MMS request, it sends the MMS request information to the MS user MMSC7 through the visited SGSN5, home GGSN/SSP4, and WAPGW6 in sequence, and the MMS request information carries the IMSI of the calling party MS, the called The IMSI and MM of the party MS.

Step 402, MMSC7 queries the subscription information of the MS user stored in HLR2 through WAPGW6, home GGSN/SSP4 and home SGSN3 successively, and judges whether the MS user of the calling party is a prepaid user based on this, if yes, execute step 403; otherwise, Execute step 409.

Step 403, MMSC7 queries the current geographic location information of the MS user stored in HLR2 through the WAP GW6, the home GGSN/SSP4 and the home SGSN3 successively through the MM5 interface on it, that is: the IP address information of the current visiting place SGSN5 , and send charging request information for charging the MMS to SCP1, the charging request information carrying the MS user's IMSI, MM and the current geographic location information of the MS user.

Step 404, SCP1 determines the fee for this MMS according to the MM content carried in the billing request information and the current geographic location of the sender MS user, and according to the preset billing rate, and corresponds to the IMSI of the sender MS user. Deduct the corresponding fee from the account of the MMSC7, and then return the billing result information that the MMS fee has been deducted to the MMSC7.

When the MMSC receives the MMS request information sent by the MS, it acquires the current geographical location information of the MS user in real time, and realizes the real-time charging of the prepaid MMS in combination with the SCP, thus avoiding the possibility that the MS user maliciously uses MM and overdraws the prepaid fee Situation, convenient for MMS operators and MS users.

Step 405, after receiving the billing result information, the MMSC7 sends the MM to the recipient MS according to the recipient's number information carried in the MMS request message.

In step 406, after receiving the result information of receiving the MM returned by the receiver MS, the MMSC7 sends a report message that the MM has been successfully sent to the SCP1, and at the same time initiates an MCP charging confirmation request.

Step 407, SCP1 returns the charging confirmation result to MMSC7.

Step 408, after receiving the charging confirmation result sent by SCP1, MMSC7 returns to the sender MS through WAPGW6, the home GGSN/SSP4 and the visited SGSN5 in turn the reading report that the receiver MS has received the MM.

Step 409, end.

Figure 5 is a schematic structural diagram of Embodiment 2 of the roaming billing system of the present invention, the system includes SCP1 set in the mobile intelligent network, the home HLR2 of the sender MS set in the core network, the home SGSN3, the home The GGSN/SSP4 composed of superposition of GGSN and SSP and the visited SGSN5, the WAPGW5 and MMSC7 set in the IP data network, the home HLR2, the home SGSN3, the home GGSN/SSP4, WAP GW6, MMSC7 and SCP1 are sequentially connected by communication, The visited SGSN5 communicates with the home GGSN/SSP4, and the SCP1 also communicates with the home HLR2. Wherein, the home HLR2 is used to store the user information of all home MSs and the relevant dynamic data information of each home MS user, including: the current location information of the home MS users; SCP1 is the center of the mobile intelligent network, used It is used to execute business logic to execute a specific service. It is used to obtain the current geographic location information of the MS user sending the MMS from the home HLR2 when receiving the charging request information sent by the MMSC7 for charging the MMS. According to the Geographical location information and MM content, according to the preset billing rate, MMS is billed and deducted, and when the MM transmission fails, the fee is reimbursed.

In the roaming billing system provided by the present invention, the SCP obtains the geographic location information of the MS user, and based on this and the MM content, the billing of the MMS is realized, and the MMSC does not need to perform signaling interaction with the HLR. The signaling interface between MMSC and HLR is developed on MMSC, which avoids the complexity of MMSC transformation in the existing technology, and avoids the compatibility test between MMSC and HLR produced by different manufacturers, reduces the cost required for MMSC transformation, and avoids MMSC and HLR compatible testing investment.

FIG. 6 is a flow chart of Embodiment 2 of the roaming charging method of the present invention. This embodiment can be realized based on the system shown in FIG. 5 , which includes the following steps:

Step 601, when the MS initiates an MMS request, it sends the MMS request information to the MMSC7 through the visited SGSN5, the home GGSN/SSP4 and WAPGW6 in sequence, and the MMS request information carries the IMSI of the calling party MS, the called party MS The IMSI and MM.

Step 602, MMSC7 queries the subscription information of the MS user stored in HLR2 through WAP GW6, GGSN/SSP4 and home SGSN3 successively, and judges whether the MS user of the calling party is a prepaid user based on this, if yes, execute step 603; otherwise, execute Step 612.

Step 603, MMSC7 sends charging request information for charging MMS to SCP1, and the charging request information carries the IMSI and MM of the MS user.

Step 604, SCP1 queries the current geographic location information of the sender MS user from HLR2 through the MAP (Mobile Application Part, mobile application part) protocol, that is: the IP address information of the visited SGSN5.

Step 605, SCP1 determines the fee for this MMS according to the current geographic location of the sender MS user and the MM content carried in the charging request information, and according to the preset charging rate, and corresponds to the IMSI of the sender MS user. Deduct the corresponding fee from the account of the MMSC7, and then return the billing result information that the MMS fee has been deducted to the MMSC7.

When the SCP receives the billing request information sent by the MMSC, it obtains the current geographic location information of the sending MS user from the HLR in real time, realizing real-time billing of the prepaid MMS, which prevents the MS user from maliciously using MM and overdrafting The situation of prepaid fees is convenient for MMS operators and MS users; and, since SCP is used to execute business logic and is mainly used for signaling control, when MS initiates an MMS request in the visited network, the SCP from The HLR acquires the geographic location information of the MS for roaming charging, which does not reduce the working efficiency of the roaming charging system, avoids increasing the time delay of sending MM, and facilitates the MS user.

Step 606, after receiving the billing result information, the MMSC7 sends the MM to the receiver MS according to the number information of the receiver carried in the MMS request message.

Step 607, MMSC7 generates the sending result information of whether the MM is successfully sent according to whether the result information of successfully receiving the MM returned by the receiver MS is received within the predetermined time, and then sends the sending result information to SCP1, and simultaneously initiates the MCP ( is the message channel protocol) billing confirmation request.

Step 608, SCP1 judges whether the MM is successfully sent to the receiver MS according to the sending result information, if yes, execute step 609; otherwise, execute step 611.

Step 609, SCP1 returns the charging confirmation result to MMSC7.

Step 610: After receiving the charging confirmation result sent by SCP1, MMSC7 returns to the sender MS through WAPGW6, the home GGSN/SSP4 and the visited SGSN5 successively the reading report that the receiver MS has received the MM, and then executes step 612.

In step 611, SCP1 replenishes the fee deducted from the account corresponding to the IMSI of the sending MS user for this MMS service to the account.

Step 612, end.

FIG. 7 is a schematic structural diagram of an embodiment of a service control device with the function of providing geographic location information according to the present invention. The service control device includes an SCP1 and an address information storage device 8 connected to each other. Among them, the address information storage device 8 is used to store the geographical location information where the MS user of the home is currently located; When the MMS performs billing request information for billing, the location information of the MS user who sends the MMS is obtained from the address information storage device 8, and the MMS is charged according to the preset charging information according to the location information and MM content. Fees and deductions, as well as fee recovery when MM transmission fails.

FIG. 8 is a schematic structural diagram of Embodiment 3 of the roaming billing system of the present invention. The system includes an SCP1 and an address information storage device 8 set in a mobile intelligent network, and a home HLR2 of a sender MS set in a core network, Home SGSN3, home GGSN/SSP4 composed of GGSN and SSP, visiting SGSN5, and WAP GW6 and MMSC7 set in IP data network, home HLR2, home SGSN3, home GGSN/SSP4, WAP GW6, MMSC7 communicates with SCP1 sequentially, the visited SGSN5 communicates with the home GGSN/SSP4, and SCP1 connects with the address information storage device 8. The two can be set as one, or the address information storage device 8 is set in SCP1. When the storage device 8 is integrated, the two constitute the service control device with the function of providing geographic location information as shown in FIG. 7 . Among them, the address information storage device 8 is used to store the geographical location information where the MS user of the home is currently located; When the MMS performs billing request information for billing, the location information of the MS user who sends the MMS is obtained from the address information storage device 8, and the MMS is charged according to the preset charging information according to the location information and MM content. Fees and deductions, as well as fee recovery when MM transmission fails.

In the roaming billing system provided by the present invention, the SCP obtains the geographic location information of the MS user from the connected or integrated address information storage device and implements the billing of the MMS accordingly, and the MMSC does not need to perform signaling with the HLR Interaction, therefore, there is no need to develop a signaling interface with the HLR on the MMSC, avoiding the complexity of the existing technology for MMSC transformation, and avoiding the compatibility test between the MMSC and the HLR produced by different manufacturers, reducing the MMSC The cost required for transformation avoids investment in compatibility testing between MMSC and HLR.

FIG. 9 is a flow chart of Embodiment 3 of the roaming charging method of the present invention. This embodiment can be implemented based on the system shown in FIG. 8, which includes the following steps:

Step 901: After the MS roams and attaches to a new network, it sends an activation PDP context request message to the SGSN5 in the visited network, requesting to establish a connection. The activation PDP context request message carries the MS's IMSI, MSISDN, APN, and QoS and other information; the activation PDP context request message can be sent through Activate PDP Context Request signaling.

Step 902, the SGSN5 in the visited network searches the address of the corresponding GGSN/SSP4 in the home network from the MS's home HLR2 according to the IMSI and APN information carried in the activation PDP context request message, and sends the address to the home GGSN/SSP4 Send a Create PDP Context Request message, which carries the MS's IMSI, MSISDN, and IP address information of the visited SGSN5; the Create PDP Context Request message can be implemented through the Create PDP Context Request signaling.

Step 903, the home GGSN/SSP4 queries the HLR2 through the home SGSN3 according to the IMSI carried in the PDP context request message to determine whether the MS user is a prepaid user, if yes, execute step 904; otherwise, execute step 920.

Step 904, the home GGSN/SSP4 instructs the visited SGSN5 to allocate wireless resources for signaling connection to the MS; at the same time, it initiates the operation of requesting GPRS data processing to SCP1, and reports the IDP information, which carries the IMSI of the MS user , MSISDN and the IP address information of the visited SGSN5, this operation can be realized through Initial DP GPRS signaling.

Step 905, the visited SGSN5 allocates wireless resources to the MS; at the same time, the SCP1 sends a GPRS event request response to the home GGSN/SSP4, and the sending of the GPRS event request response can be realized through Request Report GPRS Event signaling.

Step 906, SCP1 obtains the IMSI, MSISDN of the MS user and the IP address information of the visited SGSN5 from the IDP information, and stores them in the address information storage device 9, and then sends the instruction information to the home GGSN/SSP4 to continue GPRS data processing , the indication information can be realized through the continueGPRS signaling, and after receiving the message, the GGSN/SSP4 can continue the process of the MS accessing the data network through the GPRS core network.

In step 907, the home GGSN/SSP4 returns a response message of creating a PDP context request to the visited SGSN5, and returning the response message can be realized through the Create PDP Context Response signaling.

Step 908, the visited SGSN5 returns to the MS a response message to activate the PDP context request, which can be implemented through the Active PDP Context Accept signaling, and the MS can perform GPRS services after receiving the response message .

Step 909, when the MS initiates an MMS request, it sends the MMS request information to the MS user MMSC7 through the visited SGSN5, the home GGSN/SSP4, and the WAP GW6 in sequence. The MMS request information carries the IMSI of the calling party MS, the received The IMSI and MM of the calling party MS; the transmission of the MMS request information can be realized through MM Submit signaling.

Step 910, MMSC7 queries the subscription information of the MS user stored in HLR2 through WAP GW6, home GGSN/SSP4 and home SGSN3 successively, and judges whether the MS user of the calling party is a prepaid user based on this, if yes, execute step 911; otherwise , execute step 919.

Step 911, MMSC7 sends charging request information for charging MMS to SCP1, the charging request information carries the IMSI and MM of the MS user; the sending of the charging request information can be realized through Charging Request signaling.

Step 912, SCP1 queries the geographic location information corresponding to the IMSI of the MS user of the MM sender from the address information storage device 8, that is, the IP address information of the visited SGSN5, and according to the geographic location information and MM content, according to a preset calculation Charge rate, determine the fee of this MMS, and deduct the corresponding fee from the account corresponding to the IMSI, and then return the billing result information of the deducted MMS fee to the MMSC7; the return of the billing result information can be realized through Charging Response signaling.

When the SCP receives the billing request information sent by the MMSC, it acquires the current geographic location information of the MS from the address information storage device in real time, and based on this and the MM content, real-time billing for the prepaid MMS is realized, avoiding the malicious intent of the MS user The situation of using MM to overdraw the prepaid fee is convenient for MMS operators and MS users; moreover, there is no need to require MS to inquire its geographic location information every time it uses MMS, and the SCP will retrieve the information from the connected or integrated address information storage device. It is very convenient to obtain the geographic location information of the MS for roaming charging. Compared with the prior art, it improves the working efficiency of the roaming charging system, reduces the time delay of sending MM, and facilitates MS users.

Step 913, after receiving the billing result information, the MMSC7 sends the MM to the receiver MS according to the receiver's number information carried in the MMS request message; the operation of sending the MM can be realized through the MMSubmit signaling.

Step 914, MMSC7 generates the sending result information of whether the MM is successfully sent according to whether it receives the result information of successfully receiving the MM returned by the receiver MS within the pre-specified time, and then sends the sending result information and billing confirmation request information to SCP1 ; The charging confirmation request can be realized through Confirm Request signaling.

Step 915, SCP1 judges whether the MM is successfully sent to the recipient MS according to the sending result information, if yes, execute step 916; otherwise, execute step 918.

Step 916, SCP1 returns the charging confirmation result to MMSC7, and the charging confirmation result can be realized through Confirm Response signaling.

Step 917: After receiving the billing confirmation result sent by SCP1, MMSC7 returns to the sender MS through WAPGW6, home GGSN/SSP4 and visited SGSN5 in turn, the reading report that the receiver MS has received MM, and the reading report can be read through Read The Report signaling is implemented, and then step 919 is executed.

Step 918, SCP1 replenishes the MMS fee deducted from the account corresponding to the IMSI of the sender MS user to this account.

Step 919, end.

FIG. 9 is a signaling diagram for implementing related operations in the process shown in FIG. 8 .

Figure 11 is a structural schematic diagram of Embodiment 4 of the roaming billing system of the present invention, the system includes SCP1 set in the mobile intelligent network, the home HLR2 of the sender MS set in the core network, the home SGSN3, and the home GGSN GGSN/SSP4, address information storage device 8 and visiting SGSN5 formed by superimposing with SSP, WAPGW5 and MMSC7 set in the IP data network, home HLR2, home SGSN3, home GGSN/SSP4, WAP GW6, MMSC7 It communicates with SCP1 in turn, the visited SGSN5 communicates with the home GGSN/SSP4, and the address information storage device 8 is respectively connected with the home GGSN/SSP4 and WAPGW5. The two can be set as one, or the address information storage device 8 can be set in SCP1 In addition, the address information storage device 8 can also be set in the IP data network. Among them, the address information storage device 8 is used to store the geographical location information of the MS user at the home place; the home GGSN/SSP4 is used to provide GPRS smart service triggering, and when receiving the MMS request information, the information is obtained from the address information storage device 8. The geographic location information of the MS that sends the MMS is sent to the WAP GW6 together with the MMS request information.

In the roaming billing system provided by the present invention, an address information storage device for storing the IP address of the visited SGSN is added, and the GGSN/SSP obtains the geographical location of the MS user from the connected or integrated address information storage device. Based on the location information, SCP and MM content can realize billing for MMS, so that MMSC does not need to perform signaling interaction with HLR. Therefore, it is not necessary to develop a signaling interface with HLR on MMSC, avoiding the transformation of MMSC in the existing technology complexity, and avoid the compatibility test between MMSC and HLR produced by different manufacturers, reduce the cost of MMSC transformation, and avoid the investment in compatibility test between MMSC and HLR.

Figure 12 is a flow chart of Embodiment 4 of the roaming charging method of the present invention. This embodiment can be implemented based on the system shown in Figure 11, which includes the following steps:

Step 1201: After the MS roams and attaches to a new network, it sends an activation PDP context request message to the SGSN5 in the visited network, requesting to establish a connection. The activation PDP context request message carries the MS's IMSI, MSISDN, APN, and QoS and other information.

Step 1202, the SGSN5 in the visited network searches the address of the corresponding GGSN/SSP4 in the home network from the MS's home HLR2 according to the IMSI and APN information carried in the activation PDP context request message, and sends the address to the home GGSN/SSP4 Send Create PDP Context Request message.

Step 1203, the home GGSN/SSP4 instructs the visited SGSN5 to allocate radio resources for the signaling connection to the MS.

Step 1204, the visited SGSN5 allocates wireless resources to the MS; at the same time, the home GGSN/SSP4 stores the current geographical location information of the MS, namely: the IP address information of the visited SGSN5 in the address information storage device 8.

Step 1205, when the MS initiates an MMS request, it sends the MMS request information to the WAP GW6 through the visited SGSN5 and the home GGSN/SSP4.

Step 1206, WAP GW6 queries the geographical location information of the MS user from the address information storage device 8 through the Radius protocol, that is: the IP address information of the visited SGSN5, and then sends the geographical location information and MMS request information through the PAP/HTTP protocol To MMSC7, the MMS request information carries the IMSI of the calling party MS, the IMSI of the called party MS and MM.

Step 1207, MMSC7 queries the subscription information of the MS user stored in HLR2 through WAP GW6, home GGSN/SSP4 and home SGSN3 successively, and judges whether the MS user of the calling party is a prepaid user based on this, if yes, execute step 1208; otherwise , go to step 1211.

Step 1208, MMSC7 sends charging request information for charging the MMS to SCP1, the charging request information carries the IMSI of the MS user and the current geographic location information of the MS user.

Step 1209, SCP1 authenticates the MS user according to the IMSI carried in the billing request information, and after the authentication is passed, according to the preset billing rate, the content of the MM and the current geographic location of the sending MS user determine this time. MMS fee, and deduct the corresponding fee from the account corresponding to the IMSI, and then return the billing result information that the MMS fee has been deducted to the MMSC7.

When GGSN/SSP4 receives the MMS request information sent by the MS, it will obtain the current geographic location information of the MS user from the location information storage device in real time, and send the geographic location information together with the MMS request information to the MMSC, so that the MMSC and the SCP Combined with the realization of real-time billing for prepaid MMS, this avoids the situation that MS users maliciously use MM and overdraws the prepaid fee, which is convenient for MMS operators and MS users; moreover, there is no need to require MS to query each time MMS is used Its location information is very convenient. Compared with the prior art, it improves the working efficiency of the roaming billing system, reduces the time delay of sending MM, and facilitates MS users.

Step 1210, after receiving the billing result information, the MMSC7 sends the MM to the recipient MS according to the recipient's number information carried in the MMS request message.

Step 1211, end.

In addition, the address information storage device 8 can also be set at the WAP GW6 place respectively, or be set at the MMSC7 place to connect with the MMSC7, and when the attributable GGSN/SSP4 reports the IP address information of the visited SGSN5 to the HLR2, the IP The address information is reported to WAP GW6 at the same time, and the geographic location information of the sender MS is stored in the address information storage device 8 by WAP GW6, or sent to MMSC7, and the geographic location information of the sender MS is stored in the address by MMSC7. In the information storage device 8. When the sender MS initiates an MMS request, correspondingly the WAP GW6 or MMSC7 obtains the geographic location information of the sender MS user from the address information storage device 8, and the WAPGW6 sends the geographic location information together with the MMS request to the MMSC7, by MMSC7 generates charging request information according to the geographic location information of the MS user of the sender and MM content and sends it to the SCP for charging.

The overall beneficial effect brought by the present invention:

1) The present invention establishes the roaming billing system based on the MMS of the mobile intelligent network. When the MMSC receives the MMS request information sent by the MS, it can obtain the current geographical location information of the MS in real time, and realizes the real-time billing of the prepaid MMS. This avoids the situation that MS users maliciously use MM and overdraws the prepaid fee, which is convenient for MMS operators and MS users;

2) In the roaming billing system of MMS shown in Fig. 5, Fig. 7 and Fig. 10 provided by the present invention, MMSC does not need to carry out signaling interaction with HLR, therefore, it is not necessary to develop a signaling interface with HLR on MMSC, It avoids the complexity of MMSC transformation in the existing technology, and avoids the compatibility test between MMSC and HLR produced by different manufacturers, reduces the cost required for MMSC transformation, and avoids the investment in compatibility testing between MMSC and HLR;

3) When the MS roams to a new network, store the geographical location information of the MS in the visited network, and then, when the MS initiates an MMS request information in the visited network, it can directly use the stored geographical location information of the MS information for roaming billing, without requiring the MS to query its geographic location information every time it uses MMS, compared with the existing technology, it improves the work efficiency of the roaming billing system, reduces the delay in sending MM, and facilitates MS users;

4) When the roaming charging system of MMS shown in Fig. 5 and Fig. 7 is used for billing, because the SCP is used to execute business logic and mainly used for signaling control, therefore, when the MS initiates the MMS in the visited network When requesting information, the SCP will obtain the geographical location information of the MS for roaming charging, which will not reduce the working efficiency of the roaming charging system, avoid increasing the delay of sending MM, and facilitate MS users.

Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present invention, rather than limiting the understanding of the present invention. Although the present invention has been described in detail with reference to the above-mentioned preferred embodiments, those skilled in the art should understand that: it can still modify or replace the technical solution of the present invention, and such modification or replacement does not depart from the technology of the present invention. The spirit and scope of the programme.

Claims (13)

1, a kind of roam charging method wherein, comprising:

Step 1, when receiving the multimedia messaging service, MMS solicited message of portable terminal transmission, inquire about the current geographical location information of this mobile phone users, content according to this geographical location information and Multimedia Message, multimedia messaging service, MMS is chargeed and deducts fees, described geographical location information by service control point or multimedia messaging service, MMS central store in the address information storage device;

Step 2 sends described Multimedia Message.

2, method according to claim 1, wherein, described step 1 is specially:

After the multimedia messaging service, MMS center receives described multimedia messaging service, MMS solicited message, judge according to stored user information in the attaching position register of described portable terminal whether described mobile phone users is the prepaid user, be, then inquire about the geographical location information of described mobile phone users, service control point charges and deducts fees multimedia messaging service, MMS according to the content of this geographical location information and Multimedia Message; Otherwise, end operation.

3, method according to claim 1 wherein, before the described step 1, is also carried out the operation of the described geographical location information of storage in the attaching position register of described portable terminal.

4, method according to claim 3, wherein, the described geographical location information of storage comprises in the attaching position register of described portable terminal:

When portable terminal is attached to access zone network, send activation PDP Context solicited message to visit ground Serving GPRS Support Node;

Described visit ground Serving GPRS Support Node obtains described portable terminal ownership place Gateway GPRS Support Node/operation exchange address of node information according to IMSI International Mobile Subscriber Identity of carrying in the described activation PDP Context solicited message and service access point name information, and sends establishment PDP Context solicited message to this Gateway GPRS Support Node/operation exchange node;

Described visit ground Serving GPRS Support Node is stored in the geographical location information of described mobile phone users in the attaching position register of described portable terminal.

5, method according to claim 4 wherein, also comprises: described Gateway GPRS Support Node/operation exchange node obtains described geographical location information from described establishment PDP Context solicited message, and this geographical location information is sent to service control point; Described service control point is stored in this geographical location information in the address information storage device.

6, method according to claim 5, wherein, described step 1 is specially:

After the multimedia messaging service, MMS center receives the multimedia messaging service, MMS solicited message of portable terminal transmission, send the billing information request that described multimedia service is chargeed to service control point, carry described IMSI International Mobile Subscriber Identity and described Multimedia Message in this billing information request;

Described service control point is inquired about the geographical location information of described mobile phone users from described address information storage device, content according to described geographical location information and Multimedia Message, according to predefined charging rate, determine the expense of described multimedia service, and deduct this expense from the account of described IMSI International Mobile Subscriber Identity correspondence.

7, method according to claim 4, wherein, also comprise: described Gateway GPRS Support Node/operation exchange node obtains described geographical location information from described establishment PDP Context solicited message, and this geographical location information is sent to the multimedia messaging service, MMS center; Described multimedia messaging service, MMS center is stored in this geographical location information in the address information storage device.

8, method according to claim 7, wherein, described step 1 is specially:

After the multimedia messaging service, MMS center receives the multimedia messaging service, MMS solicited message of portable terminal transmission, the IP address information of the described portable terminal of inquiry from described address information storage device, send the billing information request that described multimedia service is chargeed to service control point then, carry described IMSI International Mobile Subscriber Identity, described geographical location information and described Multimedia Message in this billing information request;

Described service control point according to predefined charging rate, is determined the expense of described multimedia service according to the content of described geographical location information and Multimedia Message, and deducts this expense from the account of described IMSI International Mobile Subscriber Identity correspondence.

9, according to any described method of claim 1 to 8, wherein, described step 2 is specially:

After the multimedia messaging service, MMS center receives the charging result information of the described expense of successful deduction that service control point sends, described Multimedia Message is sent to recipient's portable terminal according to the recipient's who carries in the described multimedia messaging service, MMS solicited message number information.

10, method according to claim 9 wherein, after the described step 2, also comprises:

Described multimedia messaging service, MMS center according to whether receiving the object information that receives described Multimedia Message that described recipient's portable terminal returns, generating sends object information and sends to service control point;

Described service control point judges whether described Multimedia Message successfully sends, and is, sends to charge to described multimedia messaging service, MMS center and confirms object information; Otherwise, the expense of this multimedia service from account's deduction of described IMSI International Mobile Subscriber Identity correspondence covered on this account.

11, a kind of have a business control device that geographical location information provides function, comprise service control point, it is characterized in that, this service control point also connects an address information storage device that is used for memory mobile terminal user's geographical location information, so that described service control point is after receiving the billing information request that multimedia messaging service, MMS is chargeed that sends when described multimedia service center is receiving the multimedia messaging service, MMS solicited message that portable terminal sends, according to the geographical location information of the described mobile phone users of storing in this address information storage device and the content of Multimedia Message, this multimedia messaging service, MMS is chargeed, deduct fees.

12, a kind of roam charge system, it is characterized in that, comprise the attaching position register that is arranged on the portable terminal in the core network, with the multimedia service center that is arranged in the IP data network, with the business control device that geographical location information provides function that has that is arranged in the mobile intelligent network, this business control device comprises interconnective service control point and address information storage device, described address information storage device is used for memory mobile terminal user's geographical location information, described service control point is used to receive the billing information request that described multimedia service center sends charges to multimedia messaging service, MMS when receiving the multimedia messaging service, MMS solicited message that portable terminal sends, obtain the geographical location information of mobile phone users from described address information storage device, and this multimedia service is chargeed according to the content of this geographical location information and Multimedia Message, deduct fees, and carry out the expense covering.

13, a kind of roam charge system, it is characterized in that, comprise the service control point that is arranged in the mobile intelligent network, with the attaching position register that is arranged on the portable terminal in the core network, with the multimedia service center that is arranged in the IP data network, with be connected with ownership place Gateway GPRS Support Node/operation exchange node, be used to store the address information storage device of the geographical location information of described mobile phone users, so that after described multimedia service center receives the multimedia messaging service, MMS solicited message of portable terminal transmission, obtain the geographical location information of described mobile phone users by WAP gateway from described address information storage device, and ask described service control point this multimedia service to be chargeed according to the content of this geographical location information and Multimedia Message, deduct fees.

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