CN101001156A - Method of authentication prepayment by remote dial switch-in service authentication protocol - Google Patents
Method of authentication prepayment by remote dial switch-in service authentication protocol Download PDFInfo
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Abstract
This invention discloses a method for prepayment authentication of remote dialing accessed service authentication protocol including the following steps: a gateway anylizes the content accessed by a user to get a service ID related to the service, said gateway carries the user identity attribute and the service ID to put forward an authentication request to the remote dialed access service authentication protocol server, which authenticates the user identity and service ID and gives the charge attribute corresponding to the service ID including a charge kind and payment kind and brings them to the gateway to be carried out at the same time when presenting authentication responding content stipulated by the protocol, which realizes the function for authenticating prepayment using radius in radio data service content charge based on the access server radius authenticatin and a charge plan.
Description
Technical field
The present invention relates to the authentication pre-paying method in a kind of content charging of 3G radio packet network, in particular a kind of use remote dial access service authentication protocol (Radius) agreement realizes the method for authentication pre-payment.
Background technology
At present, the widely applicable radius that is to use does back paying and time-based pre-payment, also has method to pass through the pre-payment of its expansion realization based on flow.Yet these methods all are to carry out pre-payment control at the total flow of user's all-access business.In view of the needs of content charging, be necessary to propose to distinguish the corresponding different pre-payment control mode of different pieces of information business tine.
Using radius to carry out aspect the access authentication of user, existent method all realizes according to radius agreement rfc at present, comprising based on user name user name, perhaps user identity is carried out the access authentication based on calling number calling-station-id.Yet,, be necessary to propose the method that can whether have authority to use certain data service to authenticate to the user in view of the needs of content charging.Therefore, prior art awaits improving and development.
Summary of the invention
The object of the present invention is to provide a kind of method of authentication prepayment by remote dial switch-in service authentication protocol, at above-mentioned prior art problem, be implemented in the authentication of using radius to distinguish data service in the content charging of wireless data services such as 3G and by the pre-payment of flow or incident, can control the mandate of user accesses data business on the one hand, the content supplier that can avoid non-user to subscribe to does not on the other hand visit the expense that propelling data is professional and thereby generation should not take place under the situation of wish the user, helps operator that the data service environment for use of a quiet safety of not harassed is provided to the user.
Technical scheme of the present invention is as follows:
A kind of method of authentication prepayment by remote dial switch-in service authentication protocol, it comprises the steps:
A, gateway are analyzed the content of user capture, the service identification that the business of obtaining is associated;
B, described gateway carry the user identity attribute, and service identification, propose authentication request to remote dial access service authentication protocol server;
C, user identity and service identification are authenticated by remote dial access service authentication protocol server, and simultaneously in the authentication response content that provides the agreement regulation, provide the pairing charging property of service identification, described charging property comprises charge type and payment type, and is placed on and brings gateway in the authentication response and carry out;
D, described gateway send the request of charging to described remote dial access service authentication protocol server, and the kind of described charging request comprises event type, charge by incident so that support;
E, described remote dial access service authentication protocol server provide the user and have pre-payment amount and the control information relevant with pre-payment in the institute that uses the service identification related service in the response of chargeing.
Described method, wherein, described step C also comprises:
C11, from described authentication request, take out subscriber identity information, in the user signing contract information database, search the whether signatory pairing business of service identification of using of user by remote dial access service authentication protocol server;
If C21 finds these information in this user signing contract information database, remote dial access service authentication protocol server is just responded authentication success; Otherwise response authentification failure.
Described method, wherein, described step C also comprises:
In the time of C31, described remote dial access service authentication protocol whois lookup CAMEL-Subscription-Information, obtain charge type and payment type that this business is taked under this user.
Described method, wherein, described step D also comprises:
If the charge type in the authentication response that the D11 gateway is received is an event type, just the account status type is set to event type in the request of chargeing; Remote dial access service authentication protocol server is received after the charging request of this type and after handling account and quota information, directly to be sent the response of chargeing not for this chargeable session is provided with state machine and timer.
Described method, wherein, described step D also comprises;
If the charge type in the authentication response that the D21 gateway is received is the service conversation type, send Intermediate Charging ICH information to remote dial access service authentication protocol server by the dial access service authentication protocol client in the gateway;
After D31, described remote dial access service authentication protocol server receive Intermediate Charging ICH information, send Intermediate Charging ICH to the dial access service authentication protocol client and reply, and in Intermediate Charging ICH is replied, insert this user and in this billing interval, can also provide how many quotas the account of business that should the service identification association.
Described method, wherein, described step D also comprises: if comprise tariff switch point in this billing interval, provide tariff switch point front and back quota quantities separately in the described charging response; And when in the billing interval of just passing by, comprising tariff switch point, provide the quota quantities that consume separately before and after the tariff switch point in the described Intermediate Charging ICH request.
Described method, wherein, described step D also comprises: if described remote dial access service authentication protocol server thinks that the user may use up all operable quotas in next billing interval, then being included in the response of chargeing needs to carry out control action after quota is used up.
The method of a kind of authentication prepayment by remote dial switch-in service authentication protocol provided by the present invention, on the basis of using for reference access server radius authentication and billing scheme, realized in the wireless data service content charging, using radius to authenticate the function of pre-payment.
Description of drawings
Fig. 1 is the schematic network structure that the authentication pre-payment is implemented in the content charging of the inventive method;
Fig. 2 is the business process map of the authentication success of the inventive method;
Fig. 3 is the unsuccessful business process map of the authentication of the inventive method;
Fig. 4 is that session class business is charged by flow and the business process map of user balance when sufficient in the inventive method;
Fig. 5 is that session class business is charged by flow and the business process map of user balance deficiency in the inventive method;
Fig. 6 is by event charging operation flow schematic diagram in the inventive method.
Embodiment
Below in conjunction with accompanying drawing, will be described in detail each specific embodiment of the present invention, so that technical scheme of the present invention and beneficial effect thereof are more readily understood.
In the method for authentication prepayment by remote dial switch-in service authentication protocol of the present invention, at first gateway is analyzed the content of user capture, the service identification that the business of obtaining is associated, do not belong to scope of the present invention for the method that how to obtain related service identification, and be well known to those skilled in the art, therefore do not describe.
Gateway carries user identity attributes such as user name, calling number, adds service identification, proposes authentication request to the radius server.By the radius server user identity and service identification are authenticated, and outside the authentication response content that provides the agreement regulation, also need to provide the pairing charging property of service identification: charge type (session or event) and payment type (online, offline or online bothoffline).These information are placed on and bring the gateway execution in the authentication response.
Send the request of charging by described gateway to the radius server then.The kind of described charging request also has incident event type except the agreement regulation, charge by incident so that support.Original start, interim and stop are used for the charging of session type service in the charging request.
Described Radius server except the information that the charging response that provides the agreement regulation should be carried, gives the user and has the pre-payment amount in the institute that uses the service identification related service in the response of chargeing, and also will provide some relevant control informations of pre-payment.
In above-mentioned steps, from described authentication request, take out identity information by the radius server: user name or calling number, also have service identification,, in the user signing contract information database, search the whether signatory pairing business of service identification of using of user again according to subscriber identity information.If can find these information in the database, user's these data services of having contracted are described, server just can be responded authentication success; If do not find, just think that the user does not have signatory these data services, server can be responded authentification failure.
In described Radius whois lookup CAMEL-Subscription-Information, also need to obtain charge type and the payment type that this business is taked under this user.It is to treat according to service conversation session that charge type is meant here to this business, still treats according to incident event.If meaning this business, session have tangible initial sum to stop, the flow information that is taken place in the process that business is carried out also is significant, be the foundation of carrying out pre-payment in the content charging by flow, accounting server need have state to the management of such chargeable session; If event means for this business, initial sum stops almost carrying out simultaneously, does not perhaps need the situation of being concerned about when it stops, and accounting server is stateless to the management of such chargeable session.
The described gateway of the inventive method except the type that the Acct Status Type of agreement regulation comprises, has increased the event type when send chargeing request to the radius server, the event type in the charge type that is used for providing in the corresponding authentication response.If the charge type in the authentication response that gateway is received is the event type, just account status type Acct Status Type is set to the event type in the request of chargeing; The radius accounting server does not need for this chargeable session is provided with state machine and timer after receiving the charging request of this type, after handling account and quota information, directly sends the response of chargeing, and just can think that this chargeable session end is just passable.
The inventive method is under the situation of session, to further comprise at described charge type: send Intermediate Charging ICH information by the radius client in the gateway to the radius server; After the Radius server receives Intermediate Charging ICH information, send Intermediate Charging ICH to radius client and reply, and in Intermediate Charging ICH is replied, insert this user and in this billing interval, can also provide how many quotas the account of business that should the service identification association; If comprise tariff switch point in this billing interval, also to provide tariff switch point front and back quota quantities separately in the response of chargeing.Equally, if comprised tariff switch point in the billing interval of just passing by, just should provide the quota quantities that consume separately before and after the tariff switch point in the Intermediate Charging ICH request.If the radius server thinks that the user just may use up all operable quotas in next billing interval, can be included in the response of chargeing needs to carry out control action after quota is used up.Can realize prepayment mode thus.
The described radius server of the inventive method will provide the response of chargeing, and the charging response of these charge response and foregoing Intermediate Charging ICH information is identical, no longer is repeated in this description at this.
The network structure of having showed the content charging enforcement authentication pre-payment of the inventive method as Fig. 1.As shown in Figure 1, the system that uses radius authentication pre-payment in content charging of the inventive method comprises:
One aaa server 10 is used for the user is authenticated, the business that the user visited authorized, and the charge information of process user.
One Gateway GPRS Support Node (GGSN) 20 is used for the Packet data service of GPRS and 3G is linked into intemet (Internet), and RADIUS client (radius client) is integrated among the GGSN, realize and aaa server 10 alternately.
One prepaid server 30, carry out billing operation according to the information in the charging request of aaa server 10 transmissions, and return the response of chargeing and give aaa server 10, aaa server 10 provides the response of chargeing according to these information, and GGSN 20 controls the business that user and user carry out according to these responses of chargeing.
Should be understood that; this block diagram does not embody the network entity that those and discussion of the present invention do not have substantial connection; and actual network realizes comprising a plurality of network entities among the figure, and this diagram only for the explanation technical solution of the present invention, can not be interpreted as the restriction to scope of patent protection of the present invention.
For functions such as the authentication that further realizes content charging, pre-payment, flow control, rate switchings, the inventive method at first on original Extended Protocol basis definition has expanded the radius agreement.The Radius agreement has following components:
Radius consensus standard funtion part is referring to radius agreement, RFC2865, RFC2866, RFC2869;
The radius protocol part that meets the WCDMA standard is referring to TS23.060.
Radius protocol extension for the authentication prepayment characteristic that satisfies content charging.
The present invention also defines and illustrates the interface between aaa server and the prepaid server in addition.
Related functional entities strengthens to be described:
Aaa server: storing user subscription business configuration data are used for the authentication of content charging, memory contents charging prepayment service charging control strategy.For the prepaid user to the prepaid server quota application, quota is exactly the big small-amount that prepaid server is distributed to flow that the user uses what or time length.To the already used quota quantities of prepaid server report of user.Be about under the not enough situation in quota, to GGSN notice charging control strategy.
Gateway GPRS Support Node (GGSN): integrated content analysis and billing function can obtain the service identification of user institute access service by content analysis; This service identification is one of foundation that authenticates on aaa server.Administer and maintain and be each user configured trigger on it; When satisfying, various trigger conditions send charging message accounting-request to aaa server; In inserting response access-response message, provide professional charge type and payment type according to aaa server and come the differentiated treatment charge information.
Prepaid server: handle the charge information that aaa server returns to prepaid server.Distinguish the different business sign that the user visited, carry out the calculating and the distribution of quota.
The inventive method is supported the RADIUS expansion of content charging authentication feature, and described message identifying (access accept/reject) extended description is as follows:
Table 1
| Property Name | Explanation |
| Service-identifier | Service identification |
| Service-Accounting -type | Charge type |
| Service-charging-ty pe | Payment type |
| Service-information | The characteristic information summary of Service |
Extended attribute to above-mentioned table 1 is described as follows:
Service-identifier describes: this attribute is that GGSN issues aaa server, is used to represent that the user is just in the sign of access service.This attribute appears among Access-request and the Access-accept.Aaa server is according to user profile such as user name, MISDN or IP addresses, and whether authenticated user has the indicated service of authority visit service-identifier.
Service-Accounting-type describes: the charge type of indication service, session and event.
Service-charging-type describes: the payment type of indication service, online, offline or online and offline.
Service-information describes: describe the summary of the particular content of service, for example, can carry the partial content of URL
As shown in table 2 to charging message (accounting-request response) extended description:
Table 2
| Property Name | Explanation |
| Service-identifier | Service identification |
| Service-session-timeo ut | The duration quota |
| Service-Input?Octets | The downlink traffic quota |
| Service-Output?Octets | The uplink traffic quota |
| Gn-Correlation-Id | The gn mouth is charge associated |
| Used-Service-Unit | The Group type comprises used discharge record |
| Tariff-Change-Usage | Rate changes sign |
| TariffTime-Change AVP | The time point that rate is switched takes place |
| Granted-Service-Unit | The Group type comprises the up-downgoing flow quota of mandate |
| Final-Unit-Indication | The last quota of Service correspondence |
| Final-Unit-Action | The action of carrying out when quota is not enough |
| Restriction-Filter-Rul e | Restricted access list |
| Redirect-Server | The Group type, Redirect Server |
| Redirect-Address-Typ e | The Redirect Server address style |
| Redirect-server-Addre ss | The Redirect Server address |
His-and-hers watches 2 extended attributes are described as follows:
Service-session-timeout describes: and the corresponding duration quota of service-id, the maximum number of seconds that session continues.
Service-Input Octets describes: and the corresponding downlink traffic quota of service-id, the total amount of byte that session was allowed to receive.
Service-Output Octets describes: and the corresponding uplink traffic quota of service-id, the total amount of byte that session was allowed to send.
Gn-Correlation-Id describes: the charging identifier of GGSN is used for content charging and gn mouth charge information is done charge associated.
Used-Service-Unit describes: the AVP of Group type, expression session be the interior flow that takes place of metering period in the past.The kind of the AVP attribute that is comprised has 42,43,47 and 48, may comprise Tariff-Change-Usage.
Tariff-Change-Usage describes: rate changes sign.
Tariff-Time-Change AVP describes: the time point that rate is switched takes place.
Granted-Service-Unit describes: the AVP of Group type, the duration that expression session is allowed to use, perhaps quota such as flow.Comprise the up-downgoing flow quota (114,115) of Tariff-Time-Change and mandate, the service of duration quota type does not need Tariff-Time-Change AVP.
Final-Unit-Indication describes: the last quota of Service correspondence, and use up the back in this quota and carry out Final-Unit-Action action indication, perhaps operator's named policer.
Final-Unit-Action describes: when being illustrated in the quota deficiency of session, and the mode of gateway processes session.Three types of redirected can be arranged, RESTRICT ACCESS, TERMINATE.
Restriction-Filter-Rule describes: if top Action Selection RESTRICT ACCESS, server can also provide restricted access list.
Redirect-Server describes: the AVP of GROUP type.If top Action Selection redirected, server can also provide Redirect Address, depends on operator's named policer but whether use, and comprises two sub-attribute Redirect-Address-Type and Redirect-server-Address in logic.
Redirect-Address-Type describes: the address style IPv4Address of Redirect Server address, IPv6 Address, URL, SIP URI.
Redirect-server-Address describes: the particular content of Redirect Server address, resolve according to the type that provides above.
To aaa server and prepaid server protocol extension: do not have the interface between AAA and the SCP at present in the standard network model, therefore need expand to this interface.By the AAA-SCP message interface, SCP can finish following function:
The corresponding relation that has service-identifier service identification and rate calculates quota kind and the quantity that is handed down to the gateway use according to service-identifier and user profile.Handle the charge information that AAA reports user's generation of SCP: incident, duration and flow.Deduction account cost of use.
Wherein, the message header structural representation is as shown in table 3:
Table 3
| Field | Attribute | Describe |
| MsgID | ?INTEGER | The message serial number |
| Command_I D | ?INTEGER | Show type of message |
| DataLength | ?INTEGER | The message body partial-length |
*MsgID is produced by AAA, and each interacting message MsgID does not repeat, and inserts identical value when prepaid server is receiveed the response, with this unique identification as an interacting message.
Described Command_ID sign implication is as shown in table 4:
Table 4
| Command_ID | Describe |
| Accounting-Request | Fee request message |
| Accounting-Response | Fee request is receiveed the response |
The message body grammer comprises:
Fee request message: this message is initiatively issued prepaid server by aaa server, and request is deducted quota, extended attribute such as table 5 according to service-id in real time from user account number:
Table 5
| Field | Describe |
| CardNo | Account number |
| AAA_Address | The IP address of aaa server |
| AAA_ID | The numbering of aaa server |
| Service-identifier | Service identification |
| SessionId | Session identification |
| NasAddr | The access server address |
| PortNo | Port numbers |
| Used-Service-Unit | The Group type comprises used discharge record |
| Acct?Input?Octets | The input word joint number |
| Acct?Output?Octets | The output word joint number |
| Tariff-Change-Usage | The rate switching mark |
| OperationType | Action type has: start, Interim, stop, event |
Fee request response message (accounting-response): this message is to be responded to aaa server by prepaid server, and the quota of assign sessions perhaps provides incident charging request and confirms replying of character, but just no longer needed quota.Extended attribute such as table 6:
Table 6
| Field | Describe |
| CardNo | Account number |
| AAA_Address | The IP address of aaa server |
| AAA_ID | The numbering of aaa server |
| Service-identifier | Service identification |
| Service-session-timeou t | The duration quota |
| Service-Input?Octets | The downlink traffic quota |
| Service-Output?Octets | The uplink traffic quota |
| Tariff-Time-Change | The time point that rate is switched takes place |
| Granted-Service-Unit | The up-downgoing flow quota that comprises mandate |
| Final-Unit-Indication | The last quota of Service correspondence |
| Final-Unit-Action | The action of carrying out when quota is not enough |
| Restriction-Filter-Rule | Restricted access list |
| Redirect-Server | The Group type, Redirect Server |
| Redirect-Address-Type | The Redirect Server address style |
| Redirect-server-Addres s | The Redirect Server address |
| OperationType | Action type has: please receive the response event cost acknowledge message, event cost refuse information in the quota |
Described GGSN, AAA and prepaid server handling process in the inventive method are described below:
GGSN obtains service-identifier after the data service of user capture is analyzed, aaa server authenticates, and providing this service in authentication result is session or event type, is online or offline type; Prepaid server is determined to select which kind of rate according to service-identifier and user profile, also needs to determine the kind of quota, and duration, flow still are that the both has; What of these quota quantities are prepaid server also fibrous root determine according to the account situation.GGSN sends the request of chargeing (start) afterwards, determines it is by duration according to the quota kind that provides in the charging request response of receiving, presses flow and still presses duration and charge on traffic.For pressing event charging, prepaid server only needs directly to deduct the fee from the account, does not need to provide quota.
Described prepaid server has rate information, be responsible for to calculate user account information the quota quantities that can support; Aaa server only is responsible for transmitting the charge information that GGSN sends, and transmits the quota information that prepaid server provides, and the quota of itself not carrying out is calculated, the account maintenance of information.Aaa server need authenticate user and service-identifier, and the charging request message that provides according to GGSN and the charging request response of prepaid server provide ticket writing.
If the quota that provides in the charging request response that described prepaid server provides has only duration, illustrate that the charge type to this session is only to charge by duration; If have only flow, the charge type that session is described is only to charge by flow; If duration and flow have, then duration and charge on traffic are pressed in explanation.The type of setting in the request if charge is an incident, does not then need to provide quota in the charging request response.
When only pressing the duration charging, GGSN sends the request accounting-request (start) that charges to AAA, AAA is transmitted to prepaid server, prepaid server calculates session according to rate up-to-date in next metering period can keep duration, insert the service-session-timeout of accounting-response message, and definite nearest switching instant of rate next time, insert the Taritff-Time-Change parameter, accounting-response message is sent to GGSN.
When the duration quota is unspent, just arrive metering period or tariff switch point, GGSN can trigger and report accounting-request (interim) message; AAA is transmitted to prepaid server; Prepaid server is calculated the session duration of usefulness with reference to acct-delay-time and the time of receiving accounting-request (start).The prepaid server deduction has been used duration, and the quota that recomputates the new period according to this section rate is handed down to AAA, and AAA is transmitted to GGSN.
When not arriving metering period or tariff switch point, the duration quota that GGSN just is found to session uses up, and the processing method that GGSN can carry out after the Final-Unit-Indication quota that provides in the last charging request response uses up is handled.If Final-Unit-Action need to point out terminate to stop session, GGSN just stops session, sends charging request message accounting-request (stop) to AAA then.If Final-Unit-Action points out to need to be redirected redirect-access, GGSN just is redirected to the position that Redirect-Server points out with user's visit, sends charging request message accounting-request (stop) to AAA then.Whether the service-identifier that the destination belonged to redirected or limited accass needs to add up and charge can be by this locality configuration decision of GGSN.Statistics can equally with the Session of regular traffic be handled if desired.
The operation flow of this pattern is to press duration similar with the operation flow of charge on traffic pattern, and difference is that quota is not that duration and flow exist simultaneously, but has only duration.
When only charging by flow, GGSN sends the request accounting-request (start) that charges to AAA, AAA is transmitted to prepaid server, prepaid server calculates the spendable flow of session according to rate up-to-date in next metering period, insert the Service-Input Octets and the Service-Output Octets of accounting-response message, and definite nearest switching instant of rate next time, insert the Tariff-Time-Change parameter, need simultaneously the quota (Granted-Service-Unit{Tariff-Time-Change, Service-Input Octets and Service-Output Octets}) after quota (Granted-Service-Unit{Service-Input Octets and Service-Output Octets}) before the rate switching and the rate switching is given out respectively.Accounting-response message is sent to GGSN.
When the flow quota is unspent, just arrive metering period, traffic threshold or tariff switch point, GGSN can trigger and report accounting-request (interim) message; AAA is transmitted to prepaid server; Prepaid server is with reference to the Used-Service-Unit among the accounting-request (interim), the session that Acct Input Octets and Acct Output Octets field provide is use traffic, the flow quota that recomputates the new period according to this section rate is handed down to AAA, and AAA is transmitted to GGSN.GGSN will provide rate switching preceding (Used-Service-Unit{Acct Input Octets and Acct Output Octets}) respectively in accounting-request (interim) message and rate is switched the flow that use respectively back (Used-Service-Unit{Tariff-Change-Usage, Acct Input Octets and AcctOutput Octets}).
When not arriving metering period, traffic threshold or tariff switch point, the flow quota that GGSN just is found to session uses up, and the processing method that GGSN can carry out after the Final-Unit-Indication quota that provides in the last charging request response uses up is handled.If Final-Unit-Action need to point out terminate to stop session, GGSN just stops session, sends charging request message accounting-request (stop) to AAA then.If Final-Unit-Action points out to need to be redirected redirect-access, GGSN just is redirected to the position that Redirect-Server points out with user's visit, sends charging request message accounting-request (stop) to AAA then.Whether the service-identifier that the destination belonged to redirected or limited accass needs to add up and charge can be by this locality configuration decision of GGSN.Statistics can equally with the Session of regular traffic be handled if desired.
The operation flow of this pattern is to press duration similar with the operation flow of charge on traffic pattern, and difference is that quota is not that duration and flow exist simultaneously, but has only flow.
When pressing duration and charge on traffic, GGSN sends the request accounting-request (start) that charges to AAA, AAA is transmitted to prepaid server, prepaid server calculates spendable flow of session and duration according to rate up-to-date in next metering period, insert the service-session-timeout of accounting-response message, Service-Input Octets and Service-Output Octets, and definite nearest switching instant of rate next time, insert the Tariff-Time-Change parameter, need simultaneously rate is switched preceding quota (Granted-Service-Unit{service-session-timeout, Service-Input Octets and Service-Output Octets}) and the quota (Granted-Service-Unit{Tariff-Time-Change, Service-Input Octets and Service-Output Octets}) of rate after switching give out respectively.Accounting-response message is sent to GGSN.
When duration and flow quota are unspent, just arrive metering period, traffic threshold or tariff switch point, GGSN can trigger and report accounting-request (interim) message; AAA is transmitted to prepaid server; Prepaid server is with reference to the Used-Service-Unit among the accounting-request (interim), the session that Acct Input Octets and Acct Output Octets field provide is use traffic, and the flow quota that recomputates the new period according to this section rate is handed down to AAA; Simultaneously, prepaid server is calculated the session duration of usefulness with reference to acct-delay-time and the time of receiving accounting-request (start).The prepaid server deduction has been used duration, and the quota that recomputates the new period according to this section rate is handed down to AAA; AAA is transmitted to GGSN.GGSN will provide rate switching preceding (Used-Service-Unit{Acct Input Octets and Acct Output Octets}) respectively in accounting-request (interim) message and rate is switched the flow that use respectively back (Used-Service-Unit{Tariff-Change-Usage, Acc t Input Octets and Acct OutputOctets}).
When not arriving metering period, traffic threshold or tariff switch point, duration or flow quota that GGSN just is found to session use up, and the processing method that GGSN can carry out after the Final-Unit-Indication quota that provides in the last charging request response uses up is handled.If Final-Unit-Action need to point out terminate to stop session, GGSN just stops session, sends charging request message accounting-request (stop) to AAA then.If Final-Unit-Action points out to need to be redirected redirect-access, GGSN just is redirected to the position that Redirect-Server points out with user's visit, sends charging request message accounting-request (stop) to AAA then.Whether the service-identifier that the destination belonged to redirected or limited accass needs to add up and charge can be by this locality configuration decision of GGSN.Statistics can equally with the Session of regular traffic be handled if desired.
Below in conjunction with accompanying drawing above-mentioned two kinds of related steps of scene are provided detailed description: Session class business is according to the sufficient operation flow of user balance of duration and charge on traffic, as shown in Figure 4:
The data flow of A, GGSN analysis user visit data business obtains service-identifier.GGSN writes the access authentication request message with service-identifier, and other user profile together with the agreement regulation send to aaa server and authenticate.AAA obtains authentication result after the contract signing relationship between user and the service-identifier is authenticated; Authentication is passed through, and just inserts the charge type and the payment type of service-identifier correspondence in access authentication request response access-accept.For charge type is the session class, and payment type is the online type, then is the prepayment service of session type.
B, GGSN send accounting-request (start) and charge request beginning message to AAA, AAA is transmitted to prepaid server, prepaid server is calculated spendable flow of user capture service and duration according to up-to-date rate, insert the Granted-Service-Unit{Service-Input Octets and the Service-Output Octets} of accounting-response message, bring GGSN by AAA.
C, metering period arrive and trigger GGSN transmission Accounting-request (interim) message, carry already used flow of user session and duration Used-Service-Unit{Acct Input Octets and Acct Output Octets}.AAA transmits message and gives prepaid server.
D, prepaid server are calculated operable flow of user capture service and duration quota according to up-to-date rate, and definite nearest switching instant of rate next time, insert the Tariff-Time-Change parameter, need simultaneously the quota after quota before the rate switching and the rate switching is given out respectively.Accounting-response message is sent to GGSN.
E, rate switching trigger GGSN and send charging request message Accounting-request (interim) to AAA when taking place, carry user session rate and switch preceding already used flow Used-Service-Unit{Tariff-Change-Usage=0 (switching), Acct InputOctets and Acct Output Octets} and rate are switched flow Used-Service-Unit{Tariff-Change-Usage=1 (switching), Acct Input Octets and the Acct Output Octets} that use the back.AAA is transmitted to prepaid server.
F, prepaid server are calculated spendable flow of user capture service and duration according to up-to-date rate, insert the Granted-Service-Unit{Service-InputOctets and the Service-Output Octets} of accounting-response message, bring GGSN by AAA.
Trigger GGSN when G, flow or duration arrive thresholding and send charging request message Accounting-request (interim), carry user session already used quota Used-Service-Unit{Acct Input Octets and Acct Output Octets} to AAA.AAA is transmitted to prepaid server, prepaid server is calculated the spendable flow of user capture service according to up-to-date rate, insert the Granted-Service-Unit{Service-InputOctets and the Service-Output Octets} of accounting-response message, bring GGSN by AAA.
User session of the present invention finishes, and GGSN sends accounting-request (stop) message and gives AAA.Carry user session already used quota Used-Service-Unit{Acct Input Octets and Acct Output Octets}, AAA is transmitted to prepaid server.The untapped quota of prepaid server rollback is given user account.
If the user had just stopped data access before the duration of session or flow quota use up, GGSN just sends charging request message accounting-request (stop) to AAA.How many flows that GGSN also will provide user data visit in last cycle is.Below in conjunction with accompanying drawing the related step of this scene is provided detailed description:
Session class business is according to the operation flow of the user balance deficiency of duration and charge on traffic, as shown in Figure 5:
The data flow of A1, GGSN analysis user visit data business obtains service-identifier.GGSN writes the access authentication request message with service-identifier, and other user profile together with the agreement regulation send to aaa server and authenticate.AAA obtains authentication result after the contract signing relationship between user and the service-identifier is authenticated; Authentication is passed through, and just inserts the charge type and the payment type of service-identifier correspondence in access authentication request response access-accept.For charge type is the session class, and payment type is the online type, then is the prepayment service of session type.
B1, GGSN send accounting-request (start) and charge request beginning message to AAA, AAA is transmitted to prepaid server, prepaid server is calculated spendable flow of user capture service and duration according to up-to-date rate, insert the Granted-Service-Unit{Service-Input Octets and the Service-Output Octets} of accounting-response message, bring GGSN by AAA.
C1, metering period arrive and trigger GGSN transmission Accounting-request (interim) message, carry the already used flow Used-Service-Unit{Acct of user session Input Octets and Acct Output Octets}.AAA transmits message and gives prepaid server.
D1, prepaid server are calculated the operable flow quota of user capture service according to up-to-date rate, and definite nearest switching instant of rate next time, insert the Tariff-Time-Change parameter, need simultaneously the quota (Granted-Service-Unit{Tariff-Time-Change, Service-Input Octets and Service-Output Octets}) after quota (Granted-Service-Unit{Service-Input Octets and Service-Output Octets}) before the rate switching and the rate switching is given out respectively.Accounting-response message is sent to GGSN.
E1, rate switching trigger GGSN and send charging request message Accounting-request (interim) to AAA when taking place, carry user session rate and switch preceding already used flow Used-Service-Unit{Tariff-Change-Usage=0 (switching), Acct InputOctets and Acct Output Octets} and rate are switched flow Used-Service-Unit{Tariff-Change-Usage=1 (switching), Acct Input Octets and the Acct Output Octets} that use the back.AAA is transmitted to prepaid server.
F1, prepaid server are calculated the spendable flow of user capture service according to up-to-date rate, insert the Granted-Service-Unit{Service-Input Octets and the Service-Output Octets} of accounting-response message, bring GGSN by AAA.
Trigger GGSN when G1, flow or duration arrive thresholding and send charging request message Accounting-request (interim), carry user session already used quota Used-Service-Unit{Acct Input Octets and Acct Output Octets} to AAA.AAA is transmitted to prepaid server, prepaid server is calculated the spendable flow of user capture service according to up-to-date rate, insert the Granted-Service-Unit{Service-InputOctets and the Service-Output Octets} of accounting-response message, bring GGSN by AAA.If the last operable quota of user session, just be placed on and provide quota and quota among the Final-Unit-Indication and use and need the action indication carried out.
When the GGSN of the inventive method found that the quota of user session is not enough, GGSN sent accounting-request (stop) message and gives AAA.Carry user session already used quota Used-Service-Unit{Acct Input Octets and Acct Output Octets}, AAA is transmitted to prepaid server.The untapped quota of prepaid server rollback is given user account, and GGSN handles in the processing method of the last Final-Unit-Indication that provides when once providing quota according to configuration or prepaid server.
By event charging the time: GGSN sends the request accounting-request (event) that charges to AAA, AAA is transmitted to prepaid server, and whether the expense that prepaid server calculates user account according to up-to-date rate is enough to use the business of this service-identifier association.And indication " event charging affirmation " or " event charging refusal " in the OperationType of accounting-response message parameter.At payment type is under the situation of online, and GGSN need wait for the charging result that the OperationType parameter in the accounting-response message provides, and could transmit service then afterwards in " event charging affirmation "; If be rejected, just according to the service of the charging failure processing mode process user of GGSN default configuration.In time period,, do not need to report the accounting-request message of interim type at the service that transmits event type if crossed over rate point switching time yet; When the service of event type is transmitted end, has used how many flows also not need to be concerned about.
Below in conjunction with accompanying drawing to providing detailed description by the related step of event charging: the professional operation flow of pressing event charging of Event class, as shown in Figure 6:
The data flow of A2, GGSN analysis user visit data business obtains service-identifier.GGSN writes the access authentication request message with service-identifier, and other user profile together with the agreement regulation send to aaa server and authenticate.AAA obtains authentication result after the contract signing relationship between user and the service-identifier is authenticated; Authentication is passed through, and just inserts the charge type and the payment type of service-identifier correspondence in access authentication request response access-accept.For charge type is the event class, and payment type is the online type, then is the prepayment service of event type.
B2, GGSN send the request accounting-request (event) that charges to AAA;
C2, AAA are transmitted to prepaid server;
Whether the expense that D2, prepaid server calculate user account according to up-to-date rate is enough to use the business of this service-identifier association.And indication " event charging affirmation " or " event charging refusal " in the OperationType of accounting-response message parameter.
E2, AAA transmit charge response message and give GGSN.
In the inventive method, described GGSN obtains the charging result that the OperationType parameter in the accounting-response message provides, and could transmit service then afterwards in " event charging affirmation "; If be rejected, just according to the service of the charging failure processing mode process user of GGSN default configuration.When the service of event type is transmitted end, has used how many flows also not need to be concerned about.
When metering period arrival, traffic threshold arrival or tariff switch point arrived, the service of Session type can report charging request message.Processing under these three kinds of situations is described below.
Arrive triggering charging request message flow process at metering period:
When A3, GGSN can use service-identifier authenticated, the Acct-Interim-Interval parameter in access-accept message was determined metering period; Also can use the metering period of the local configuration of GGSN.
B3, when metering period arrives, GGSN triggers Accounting-request (interim) message.
C3, AAA receive Accounting-request (interim) message, are transmitted to prepaid server.Charge for pressing duration, prepaid server according on call time and acct-delay-time determines user's the already used duration of session; For charging by flow, prepaid server is according to the already used flow that reports, and then determines that according to account's situation of current rate and user the quota of next period is placed in the charging request response, brings GGSN by AAA.For pressing duration and charge on traffic, prepaid server need be calculated duration and flow simultaneously.
After D3, GGSN receive Accounting-response message, determine user's the operable duration of service according to Service-session-timeout; Determine user's the operable flow of service according to Service-Input Octets and Service-Output Octets.If indicated tariff switch point and rate to switch later flow quota in the message, GGSN also will be provided with tariff switch point, and adds up the flow that rate is switched front and back respectively, reports AAA.
Switch arrival in rate and trigger the charging request message flow process:
A4, GGSN receive accounting-response message after reporting Accounting-request (start) or accounting-request (interim) message, according to Tariff-Time-Change tariff switch point are set.
B4, when tariff switch point arrives, GGSN triggers Accounting-request (interim) message.
B4, AAA receive Accounting-request (interim) message, are transmitted to prepaid server.Charge for pressing duration, prepaid server according on call time and acct-delay-time determines user's the already used duration of session; For charging by flow, the rate before flow before prepaid server changes according to the rate that reports and rate change is adjusted already used quota; Simultaneously, also need to calculate flow after rate changes and rate and calculate the quota quantities that user session uses behind the tariff switch point, and then determine that according to account's situation of current rate and user the quota of next period is placed in the charging request response, brings GGSN by AAA.For pressing duration and charge on traffic, prepaid server need be calculated duration and flow simultaneously.
After C4, GGSN receive Accounting-response message, determine user's the operable duration of service according to Service-session-timeout; Determine user's the operable flow of service according to Service-Input Octets and Service-Output Octets.If indicated tariff switch point and rate to switch later flow quota in the message, GGSN also will be provided with tariff switch point once more, repeats above-mentioned steps.
Arrive reporting of triggering charging request message at traffic threshold, only be used to charge by flow:
A5, GGSN can dispose traffic threshold according to this locality, monitor that all need carry out the flow situation of the session of charge on traffic, when the flow that uses as session arrives thresholding, report accounting-request (interim) message.
B5, AAA receive Accounting-request (interim) message, are transmitted to prepaid server.Prepaid server is according to the already used flow that reports, and then determines that according to account's situation of current rate and user the quota of next period is placed in the charging request response, brings GGSN by AAA.
After C5, GGSN receive Accounting-response message, determine user's the operable flow of service according to Service-Input Octets and Service-Output Octets.If indicated tariff switch point and rate to switch later flow quota in the message, GGSN also will be provided with tariff switch point, and adds up the flow that rate is switched front and back respectively, reports AAA.
To performing step of the present invention, promptly the handling process of GGSN, AAA and prepaid server elaborates below in conjunction with accompanying drawing:
In radius server authentication successful service flow process, as shown in Figure 2:
The data flow of A6, GGSN analysis user visit data business obtains service-identifier.
B6, GGSN write the access authentication request message with service-identifier, and other user profile together with the agreement regulation send to aaa server and authenticate.
C6, AAA obtain authentication result after the contract signing relationship between user and the service-identifier is authenticated; Authentication is passed through, and just inserts the charge type and the payment type of service-identifier correspondence in access authentication request response access-accept.
The unsuccessful operation flow of described radius server authentication, as shown in Figure 3:
The data flow of A7, GGSN analysis user visit data business obtains service-identifier.
B7, GGSN write the access authentication request message with service-identifier, and other user profile together with the agreement regulation send to aaa server and authenticate.
C7, AAA obtain authentication result after the contract signing relationship between user and the service-identifier is authenticated; Authentication is not passed through, and just replys access authentication request response access-reject.
The inventive method has expanded the message attributes in the existing radius standard, strengthened AAA, the function of GGSN and prepaid server, make it support the fundamental characteristics of content charging prepayment service, comprise user's quota segmentation application, flow control, charging policy control, duration control and rate switching etc.
Should be understood that above-mentioned description at specific embodiment is comparatively detailed, can not thereby think the restriction to scope of patent protection of the present invention, scope of patent protection of the present invention should be as the criterion with claims.
Claims (7)
1, a kind of method of authentication prepayment by remote dial switch-in service authentication protocol, it comprises the steps:
A, gateway are analyzed the content of user capture, the service identification that the business of obtaining is associated;
B, described gateway carry the user identity attribute, and service identification, propose authentication request to remote dial access service authentication protocol server;
C, user identity and service identification are authenticated by remote dial access service authentication protocol server, and simultaneously in the authentication response content that provides the agreement regulation, provide the pairing charging property of service identification, described charging property comprises charge type and payment type, and is placed on and brings gateway in the authentication response and carry out;
D, described gateway send the request of charging to described remote dial access service authentication protocol server, and the kind of described charging request comprises event type, charge by incident so that support;
E, described remote dial access service authentication protocol server provide the user and have pre-payment amount and the control information relevant with pre-payment in the institute that uses the service identification related service in the response of chargeing.
2, method according to claim 1 is characterized in that, described step C also comprises:
C11, from described authentication request, take out subscriber identity information, in the user signing contract information database, search the whether signatory pairing business of service identification of using of user by remote dial access service authentication protocol server;
If C21 finds these information in this user signing contract information database, remote dial access service authentication protocol server is just responded authentication success; Otherwise response authentification failure.
3, method according to claim 2 is characterized in that, described step C also comprises:
In the time of C31, described remote dial access service authentication protocol whois lookup CAMEL-Subscription-Information, obtain charge type and payment type that this business is taked under this user.
4, method according to claim 1 is characterized in that, described step D also comprises:
If the charge type in the authentication response that the D11 gateway is received is an event type, just the account status type is set to event type in the request of chargeing; Remote dial access service authentication protocol server is received after the charging request of this type and after handling account and quota information, directly to be sent the response of chargeing not for this chargeable session is provided with state machine and timer.
5, method according to claim 4 is characterized in that, described step D also comprises;
If the charge type in the authentication response that the D21 gateway is received is the service conversation type, send Intermediate Charging ICH information to remote dial access service authentication protocol server by the dial access service authentication protocol client in the gateway;
After D31, described remote dial access service authentication protocol server receive Intermediate Charging ICH information, send Intermediate Charging ICH to the dial access service authentication protocol client and reply, and in Intermediate Charging ICH is replied, insert this user and in this billing interval, can also provide how many quotas the account of business that should the service identification association.
6, method according to claim 5 is characterized in that, described step D also comprises: if comprise tariff switch point in this billing interval, provide tariff switch point front and back quota quantities separately in the described charging response; And when in the billing interval of just passing by, comprising tariff switch point, provide the quota quantities that consume separately before and after the tariff switch point in the described Intermediate Charging ICH request.
7, method according to claim 6, it is characterized in that, described step D also comprises: if described remote dial access service authentication protocol server thinks that the user may use up all operable quotas in next billing interval, then being included in the response of chargeing needs to carry out control action after quota is used up.
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