CN102137368A

CN102137368A - Enhanced policy and charge control method and system and PCC (Policy Charge Control) system

Info

Publication number: CN102137368A
Application number: CN2010101013532A
Authority: CN
Inventors: 周晓云; 刘小华
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2010-01-26
Filing date: 2010-01-26
Publication date: 2011-07-27
Anticipated expiration: 2030-01-26
Also published as: CN102137368B; WO2011091682A1

Abstract

The invention discloses an enhanced policy and charging control method. A PCC (Policy Charge Control) system is internally provided with a TDEF (Traffic Detection Executing Function) entity. The method comprises the steps: when formulating the PCC rule, a PCRF (Policy and Control Reporting Function) determines whether more than four layers of policy and charging control are carried out on service data streams matched with the PCC rule; when sending the PCC rule to a policy and control executing function (PCEF) entity, the PCRF indicates whether more than four layers of policy and charging control are carried out on the service data streams matched with the PCC rule; if yes, the PCRF sends the rule for carrying out more than four layers of policy and charging control on the service data streams to the TDEF; and the TDEF implements the rule for carrying out more than four layers of policy and charging control on service data streams, and returns an implementation result to the PCRF. The invention discloses an enhanced policy and charging control system and the PCC system. The invention realizes multilevel and multi-latitudinal charging control on service data.

Description

Method and system, the PCC system of the strategy that strengthens and the control of chargeing

Technical field

The technology of the strategy that the present invention relates to strengthen and the control (PCC, Policy and Charging Control) of chargeing relates in particular to a kind of strategy of enhancing and the method and system of charging control, and the PCC system.

Background technology

Third generation partner program (3GPP, 3rd Generation Partnership Project) PCC system is a functional framework that can be applied to multiple access technology, for example, it can be applied to universal mobile telecommunications system (UMTS, Universal Mobile Telecommunications System) terrestrial radio Access Network (UTRAN, UMTS Terrestrial Radio Access Network), global system for mobile communications (GSM, Global system for Mobile Communication)/GSM data enhancing evolution (EDGE, Enhanced Data rates for Global Evolution) wireless access network, the grouping system of intercommunicated wireless local area network (I-WLAN) and evolution (EPS, Evolved Packet System) etc.

Fig. 1 is the non-roaming configuration diagram of the Rel-8PCC of correlation technique, as shown in Figure 1, comprise user-subscribed database (SPR in the PCC system, Subscription Profile Repository), Application Function (AF, Application Function), strategy and charging regulation function entity (PCRF, Policy andCharging Rule Function), bearing binding and event reporting function entity (BBERF, Bearer Bindingand Event Reporting Function), functional entity (PCEF is carried out in strategy and control, Policy andControl Enforcement Function) and charge system, wherein, SPR is connected with PCRF by the Sp interface, AF is connected with PCRF by Rx interface, BBERF is connected with PCRF by the Gxx interface, and PCEF is connected with PCRF by the Gx interface; Charge system comprises line charge system (OCS, OnlineCharging System) and off-line accounting system (OFCS, Offline Charging System), and PCEF is connected in OCS by the Gy interface, and PCEF is connected in OFCS by the Gz interface.Followingly each logical functional entity and interface function thereof in the PCC system are described with reference to Fig. 1:

AF is used to provide the access point of service application, and the employed Internet resources of these service application need carry out dynamic policy control.When service surface was carried out parameter negotiation, AF passed to PCRF with related service information.If these business information are tactful consistent with PCRF's, then PCRF accepts this negotiation; Otherwise PCRF refuses this negotiation, and provides the acceptable service parameter of PCRF in feedback simultaneously.Subsequently, AF can return to these parameters subscriber equipment (UE, User Equipment).Wherein, the interface between AF and the PCRF is a Rx interface.

PCRF is the core of PCC, is responsible for the formulation of strategic decision-making and charging regulation.PCRF provides the network control rule based on business data flow, these network controls comprise detection, gate (Gating Control), service quality (QoS, the Quality of Service) control of business data flow and based on the charging regulation of data flow etc.PCRF sends to the PCEF execution with the strategy and the charging regulation of its formulation, and simultaneously, PCRF needs also to guarantee that these rules are consistent with user's CAMEL-Subscription-Information.PCRF generates strategy and comprises with the foundation of charging regulation: obtain and professional relevant information from AF; Obtain and user policy, billing control and subscription information from SPR; Obtain and carry the information of network of relation from PCEF.

PCEF be usually located at gateway (GW, Gate-Way) in, carry out strategy and the charging regulation that PCRF formulated at loading end.PCEF detects business data flow according to the business datum flow filter in the rule that PCRF sent, and then these business data flows are carried out strategy and the charging regulation that PCRF formulated.When carrying was set up, the rule that PCEF sends according to PCRF was carried out the QoS mandate, and carried out gate control according to the execution of AF.According to the charging regulation that PCRF sends, PCEF carries out corresponding business data flow billing operation, and chargeing both can be online charging, also can be offline charging.If online charging, then PCEF needs and OCS carry out credit management together.During offline charging, exchange correlation charge information between PCEF and the OFCS.Interface between PCEF and the PCRF is the Gx interface, and the interface between the OCS is the Gy interface, and the interface between the OFCS is the Gz interface.PCEF generally is positioned on the gateway of network, as the packet data gateway (PDG, Packet Data Gateway) among GGSN among the GPRS (GGSN, Gateway GPRS Support Node) and the I-WLAN.

BBERF is used for the checking and the event report of bearing binding, up bearing binding.When UE inserts by E-UTRAN, and adopt mobility management protocol between S-GW and the P-GW for supporting the mobile IP v 6 (DSMIPv6 of two stacks, Moblie IPv6 support for dual stack Hosts and Routers) during agreement, BBERF is located in S-GW, when UE inserts by the non-3GPP connecting system of trusted, BBERF is positioned at the trusted non-3 GPP access network and closes, when UE inserts by trustless non-3GPP connecting system, BBERF is positioned at packet data gateway (ePDG, the Evolved Packet Data Gateway of evolution.At this moment, PCEF no longer carries out the bearing binding function.

SPR has stored and the policy control and the relevant user policy, billing control and subscription information that charges.Interface between SPR and the PCRF is the Sp interface.

OCS and PCEF carry out the control and the management of user credit under the online charging mode together.OFCS finishes billing operation under the offline charging mode with PCEF.

The PCC system has realized that by above each functional entity to UE be the policy and charging control that IP that PDN set up of visit connects Access Network (IP-CAN, IP Connectivity Access Network) session.

Adopt present PCC framework, have following problem:

(1) Ye Wu information is provided by AF, and PCRF carries out strategic decision-making according to this information.And in the existing network application, do not have AF under a lot of scenes.IP Multimedia System (IMS, IMS IPMultimedia Subsystem) etc. the business of dialogue-based class can adopt initial session protocol (SIP, SIPSession Initiation P rotocol) the signaling operation layer that carries out session is consulted (as code encoding/decoding mode, medium type, required bandwidth etc.), P-CSCF (being the AF in the PCC system) is the notification of business information PCRF that consults, and carries out QoS by PCRF and authorize.And the business of a large amount of non-conversation class in the existing network, voice protocol (VoIP as the current application IP based network, Voice Over Internet Protocol), IPTV (IPTV, IPTV Internet Protocol Television), video request program (VoD, Video OnDemand), business such as online game etc. can not carry out the media negotiation of application layer, can not carry out the process that business information is sent to PCRF yet.At these non-session services, though can carry out certain policy authorization by some static policies of configuration on PCRF, this mode has greatly limited the advantage of PCC system.

(2) present, the filter that is used to detect the IP bag in the PCC rule that PCRF issues all is to adopt five-tuple.And under some scene, only adopting five-tuple can not two kinds of different traffic differentiation be come out, this is just need the information more than four layers to be detected.

Summary of the invention

In view of this, main purpose of the present invention is to provide the method and system of a kind of strategy of enhancing and the control of chargeing, and PCC system, can realize the strategy of non-session service and the control of chargeing, can detect the information of business data flow more than four layers especially, widen the Practical Performance of PCC system.

For achieving the above object, technical scheme of the present invention is achieved in that

The method of a kind of strategy of enhancing and the control of chargeing is provided with professional the detection and carries out functional entity TDEF in strategy and charging control PCC system; Described method comprises:

"Policy and Charging Rules Function entity PCRF determine to the business data flow that IP connects Access Network IP-CAN session carry out strategy more than four layers and the control of chargeing after, formulate and professionally detect rule and/or professional executing rule also sends to described TDEF;

PCEF receive that described PCRF carries out more than four layers strategy to business data flow and the indication of the control of chargeing after, according to described indication detected business data flow is sent to TDEF;

Described TDEF carries out the described professional rule that detects to described business data flow, gives described PCRF with the identification-information reporting that detects data service, and/or, described professional executing rule is carried out in detected data service.

Preferably, in the initiation process of IP-CAN session foundation or IP-CAN session modification, described PCRF formulates the PCC rule according to user's CAMEL-Subscription-Information;

Described method also comprises:

Described PCEF determines the business data flow with described PCC rule match is carried out strategy more than four layers and during the control of chargeing, described PCEF will be transmitted to described TDEF with the business data flow of described PCC rule match; And described PCEF will be with any PCC rule match but strategy more than four layers is carried out in described PCRF indication and the business data flow of the control of chargeing is transmitted to described TDEF.

Preferably, the process set up of described IP-CAN session by the resident gateway of bearing binding and event reporting function entity B BERF receive set up the IP-CAN conversation request message after and initiate;

When the process of described IP-CAN session modification provides the business information of IP-CAN by Application Function AF and initiate, or detect after the new business by TDEF and initiate, or after BBERF receives the new service quality QoS of request rule or detects the PCRF events subscribed and initiate, or initiate in the new QoS rule of the TDEF request of receiving or after detecting the PCRF events subscribed.

Preferably, described method also comprises:

In deletion IP-CAN conversation procedure, when described PCRF determines that the PCC rule relevant with described IP-CAN session comprises described regular that strategy and charging are controlled more than four layers, control the described PCEF deletion PCC rule relevant, and control TDEF deletes described professional executing rule with described IP-CAN session.

Preferably, described method also comprises:

When subscription data upgrades, described PCRF whether redefine to described IP-CAN session the business data flow control carrying out strategy more than four layers and charge, redefine professional executing rule when being, and be updated among the TDEF.

Preferably, in the described PCC system described TDEF is set, is specially:

Described TDEF is connected with charge system with described PCRF respectively.

A kind of PCC system comprises user-subscribed database SPR, AF, PCRF, BBERF, PCEF and charge system, and described SPR, described AF, described BBERF and described PCEF are connected with described PCRF respectively, and described PCEF is connected in described charge system; Described PCC system also comprises TDEF, is connected with described charge system with described PCRF respectively; Described PCC system is used for the method for the strategy of aforesaid enhancing and the control of chargeing.

Preferably, be connected by the Sx interface between described TDEF and the described PCRF.

The system of a kind of strategy of enhancing and the control of chargeing comprises the unit being set, formulating unit, determining unit, first transmitting element, second transmitting element and execution and returning the unit, wherein:

The unit is set, is used for TDEF being set in the PCC system;

Formulate the unit, be used to formulate PCC rule, professional rule and the professional executing rule of detecting;

Determining unit is used to determine whether the business data flow with described IP-CAN session is carried out strategy and the control of chargeing more than four layers;

First transmitting element is used for sending the PCC rule and/or indicating whether control that the business data flow with described PCC rule match is carried out strategy more than four layers and charges to PCEF;

Second transmitting element is used for and will described professional detection rule and/or professional executing rule be sent to described TDEF;

Carry out and return the unit, be used for described business data flow is carried out the described professional rule that detects, give described PCRF the identification-information reporting that detects data service, and/or, described professional executing rule is carried out in detected data service.

Preferably, the PCC rule is formulated according to user's CAMEL-Subscription-Information in described formulation unit in the initiation process of IP-CAN session foundation or IP-CAN session modification;

Accordingly, described determining unit is further determined the business data flow with described IP-CAN session is carried out strategy more than four layers and during the control of chargeing, described PCEF will be transmitted to described TDEF with the business data flow of described PCC rule match, and, with not with any PCC rule match but strategy more than four layers is carried out in described PCRF indication and the business data flow of the control of chargeing is transmitted to described TDEF.

Preferably, described system also comprises:

Delete cells is used for the conversation procedure at deletion IP-CAN, deletes the PCC rule relevant with described IP-CAN session, and described professional executing rule.

Preferably, when described subscription data upgrades, whether described determining unit redefines carries out strategy and the control of chargeing more than four layers to the business data flow with described IP-CAN session, redefines professional executing rule when being, and sends to TDEF by described second transmitting element.

Among the present invention, in current PCC system, set up professional detecting function (TDF, Traffic DetectionFunction), realization detects the information of business data flow more than four layers, like this to provide the business information will be abundanter to PCRF, help PCRF and carry out strategic decision-making, thereby realized business datum is carried out multi-level, multidimensional policy and charging control.

Description of drawings

Fig. 1 is the non-roaming configuration diagram of the Rel-8PCC of correlation technique;

Fig. 2 forms structural representation for PCC of the present invention system;

Fig. 3 is the flow chart of the method embodiment one of the strategy that strengthens of the present invention and the control of chargeing;

Fig. 4 is the flow chart of the method embodiment two of the strategy that strengthens of the present invention and the control of chargeing;

Fig. 5 is the flow chart of the method embodiment three of the strategy that strengthens of the present invention and the control of chargeing;

Fig. 6 is the flow chart of the method embodiment four of the strategy that strengthens of the present invention and the control of chargeing;

Fig. 7 is the flow chart of the method embodiment five of the strategy that strengthens of the present invention and the control of chargeing;

Fig. 8 is the flow chart of the method embodiment six of the strategy that strengthens of the present invention and the control of chargeing;

Fig. 9 is the flow chart of the method embodiment seven of the strategy that strengthens of the present invention and the control of chargeing;

Figure 10 is a kind of composition structural representation of the system of the strategy of the present invention's enhancing and the control of chargeing;

Figure 11 forms structural representation for the strategy that the present invention strengthens with the another kind of the system of the control of chargeing.

Embodiment

Basic thought of the present invention is: the professional detection is set in current PCC system carries out functional entity (TDEF, Traffic Detection Enforcement Function), so that to business data flow more than four layers filter carry out gate, qos policy control etc., thereby realized business datum is carried out multi-level, multidimensional policy and charging control.

For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.

Fig. 2 forms structural representation for PCC of the present invention system, and as shown in Figure 2, PCC of the present invention system sets up TDEF to form in PCC system shown in Figure 1, and concrete, TDEF is arranged between charge system and the PCRF, and TDEF is connected in PCRF by the Sx interface.The major function of TDEF comprises:

1, the message that issues according to PCRF detects rule (rule of the strategy more than four layers and the control of chargeing) and carries out the business datum message and detect, and packet is carried out analyzing and testing more than four layers;

2, report the business information of detection to PCRF;

3, carry out gate, qos policy execution based on filter more than four layers;

4, report to PCRF and need carry out the request of bearing bed resource modifying;

5, report the PCRF events subscribed.

Below based on PCC system shown in Figure 2, the further specific implementation of the strategy that strengthens of sets forth in detail the present invention and the method for chargeing control.

Embodiment one

Fig. 3 is the flow chart of the method embodiment one of the strategy that strengthens of the present invention and the control of chargeing, and as shown in Figure 3, present embodiment is described the IP-CAN session and set up flow process, and concrete steps are as follows:

Step S301, the resident gateway of BBERF receive and set up the IP-CAN conversation request message, carries user's information such as sign, PDN sign in the message.

Step S302, BBERF sends gateway control session to PCRF and sets up request message, carries user ID, PDN sign etc. in the message.This message is used for request and sets up gateway control session.

Step S303, if PCRF does not have user-dependent CAMEL-Subscription-Information, PCRF sends signatory document request message to SPR, carries user ID and PDN sign etc. in the message.If store user-dependent CAMEL-Subscription-Information among the PCRF, then direct execution in step S305 formulates corresponding strategy according to CAMEL-Subscription-Information.

Step S304, SPR identifies the CAMEL-Subscription-Information that returns the user according to user ID and PDN, wherein comprises the business that whether needs to carry out professional detection and needs detection.

Step S305, the CAMEL-Subscription-Information that PCRF returns according to SPR is formulated default policy, comprises PCC rule and corresponding QoS rule.Detect if need carry out business, then the business that detects as required of PCRF formulate professional detect regular.Professional detection rule generally includes the filter more than four layers.If the PCC rule that issues also needs further to carry out the policy control more than four layers, then PCRF also can customize the corresponding service executing rule, professional detection rule generally includes filter and the corresponding QoS information more than four layers, as ensure speed (GBR, Guaranteed Bit Rate), maximum rate (MBR, Max Bit Rate), consumption threshold value (Usage Threshold) etc.Optionally, PCRF also can formulate event trigger.

Step S306, PCRF returns gateway control session to BBERF and sets up acknowledge message, carries QoS rule, event trigger etc. in the message.BBERF installs QoS rule and event trigger.

Step S307, the resident gateway of BBERF sends to the resident gateway of PCEF sets up the IP-CAN conversation request message, carries information such as user ID and PDN sign in the message.Among the present invention, step S307 can carry out simultaneously with step S302.

Step S308, the resident gateway of PCEF are the IP-CAN session distributing IP address that the UE request is set up.PCEF sends the IP-CAN session to PCRF and sets up Indication message, carries information such as user ID, PDN sign and IP Address in the message.This message is used for request and sets up the Gx session.

Step S309, PCRF set up gateway control session Gx session that with step S308 request set up with the PDN sign with step S302 request according to user ID and carry out related.PCRF sends to PCEF with PCC rule, the event trigger that S304 formulates.Whether PCRF will need to carry out the professional indication that detects to the business data flow that PCEF sends this IP-CAN session, if need carry out business detection, then PCEF will be not being transmitted to TDEF with the business data flow of any PCC rule match.For each PCC rule, PCRF can send whether need to carry out the strategy that filters more than four layers and the control indication of chargeing to PCEF simultaneously, if need carry out the strategy that filters more than four layers and the control of chargeing to data stream, then PCEF will be transmitted to TDEF with the business data flow of this PCC rule match.If do not need, then PCEF carries out directly sending to the PDN network after the policy and charging control to business data flow with the PCC rule.

Step S310, if at least one PCC rule is successfully activated, the resident gateway of PCEF returns to the resident gateway of BBERF sets up the IP-CAN session response message, carries the IPAddress of IP-CAN session.

Step S311, the resident gateway of BBERF returns sets up the IP-CAN session response message, carries the IP address of IP-CAN session.

Step S312, PCRF sends professional detection session to TDEF and sets up request message, carries professional rule and/or the professional executing rule of detecting in the message.This request message is used to set up the professional session that detects.

Step S313, TDEF return acknowledge message to PCRF after professional detection rule and/or professional executing rule are installed.

Among the present invention, step S312 just can carry out behind step S305.

By above flow process, UE sets up the IP-CAN session, and PCRF will realize this IP-CAN session is carried out the gateway control session, Gx session of policy control and professionally detected session and carry out related.PCEF will carry out the filtration of business data packet according to the PCC rule that PCRF issues, and carry out the corresponding strategy and the control of chargeing.If business data flow can with the PCC rule match, and PCRF indicate this PCC rule detection to business data flow need be transmitted to TDEF and make further policy and charging control, PCEF sends to TDEF with this business data flow so; If business data flow can with the PCC rule match, but PCRF do not indicate this PCC rule detection to business data flow need be transmitted to TDEF and make further policy and charging control, PCEF will not send to TDEF to business datum so, but directly mail to the PDN network; If business data flow is not with any PCC rule match but the business data flow of this IP-CAN session of PCRF indication PCEF need carry out business detects, PCEF also sends to TDEF with this business data flow so that carry out the business detection so.

Embodiment two

Fig. 4 is the flow chart of the method embodiment two of the strategy that strengthens of the present invention and the control of chargeing, as shown in Figure 4, after present embodiment has been described and has been set up the IP-CAN session based on embodiment one, the termination flow process of the IP-CAN session that UE initiates, in this flow process, adopt the PMIPv6 agreement to communicate between the resident gateway of gateway that BBERF is resident and PCEF.Concrete steps are as follows:

Step S401, the resident gateway of BBERF receive deletion IP-CAN conversation request message.Carry the sign of IP-CAN session such as the IP address of IP-CAN session etc. in the message.

Step S402, BBERF sends gateway control session termination request message to PCRF, and PCRF identifies relevant IP-CAN session and deletes corresponding QoS rule.

Step S403, PCRF returns gateway control session termination acknowledge message to BBERF.

Step S404, the resident gateway of BBERF sends deletion IP-CAN conversation request message to the resident gateway of PCEF.

Step S405, PCEF sends IP-CAN session termination Indication message to PCRF.

Step S406, PCRF identify relevant IP-CAN session and delete corresponding PCC rule.

Step S407, PCEF delete the relevant PCC rule of this IP-CAN session.

Step S408, notified if the AF of this IP-CAN session association needs, then PCRF notice AF transfer resource discharges.If do not need to notify AF, then direct execution in step S410.

Step S409, AF echo reply message.

Step S410, PCRF return IP-CAN session termination acknowledge message.

Step S411, the resident gateway of PCEF returns deletion IP-CAN session response message to the resident gateway of BBERF.

Step S412, the resident gateway of BBERF return deletion IP-CAN session response message.

Step S413, the business that PCRF identification is relevant with this IP-CAN session detects session, and sends the professional session termination request message that detects to this TDEF.

Step S414, TDEF identify and delete after relevant business detects rule and professional executing rule.

Step S415, TDEF returns acknowledge message to PCRF.

Step S416, if subscribe to cancellation notice message before the SPR, then PCRF sends the signatory notification request message of cancellation to SPR.

Step S417, SPR echo reply message.

Embodiment three

Fig. 5 is the flow chart of the method embodiment three of the strategy that strengthens of the present invention and the control of chargeing, as shown in Figure 5, present embodiment has been described the IP-CAN session modification flow process of being initiated by AF, and in this flow process, employing PMIPv6 agreement communicates between the resident gateway of the gateway that BBERF is resident and PCEF.Concrete steps are as follows:

Step S501, AF sends application/business information to PCRF.

Step S502, PCRF returns acknowledge message after preserving application/business information.

Step S503, PCRF carries out strategic decision-making according to CAMEL-Subscription-Information, access information, business information and network strategy.The PCRF strategy comprises PCC rule and corresponding QoS rule.If the PCC rule that issues also needs further to carry out the strategy more than four layers and the control of chargeing, then PCRF also can customize the corresponding service executing rule.Professional executing rule comprises filter and the corresponding QoS information that detects information more than four layers, and TDEF just can carry out strategy and the control of chargeing to business data flow according to filter more than four layers like this.The PCC rule comprises four layers filter, and PCEF carries out strategy and the control of chargeing according to four layers of filter to business data flow.PCRF can also formulate event trigger, is used for carrying out event subscription to BBERF, PCEF or TDEF.

Step S504, PCRF gives information to BBERF transmission gateway control and QoS rule, carries the QoS rule, and event trigger.

Step S505, BBERF installs QoS rule and event trigger.BBERF place gateway can be carried out corresponding quality control, the foundation of carrying, modification or termination according to the QoS rule.

Step S506, BBERF return acknowledge message to PCRF.

Step S507, PCRF gives information to PCEF transmission strategy and charging regulation, carries PCC rule and event trigger.For each PCC rule, PCRF can send whether need to carry out the strategy that filters more than four layers and the control indication of chargeing to PCEF simultaneously, if need, then PCEF will be transmitted to TDEF with the business data flow of this PCC rule match.

Step S508, PCEF installs PCC rule and event trigger.PCEF will will be transmitted to TDEF with the business data flow of this PCC rule match according to the strategy that filters more than four layers and the control indication of chargeing.

Step S509, PCEF returns acknowledge message to PCRF.

Step S510, PCRF sends professional executing rule to TDEF and gives information, and step S503 is provided the professional executing rule and the event trigger of customization.

Step S511, TDEF install professional executing rule and event trigger.

Step S512, TDEF returns acknowledge message to PCRF.

By above-mentioned flow process, BBERF and PCEF have realized business is carried out the filtration and the strategy of business data flow below four layers or four layers and the control of chargeing, and TDEF has realized business is carried out the filtration and the strategy of business data flow more than four layers and the control of chargeing.Thereby realize multi-level control to business.

Embodiment four

Fig. 6 is the flow chart of the method embodiment four of the strategy that strengthens of the present invention and the control of chargeing, as shown in Figure 6, present embodiment has been described by TDEF and has been detected rule detection after new business according to business, the IP-CAN session modification flow process of initiating, in this flow process, adopt the PMIPv6 agreement to communicate between the resident gateway of gateway that BBERF is resident and PCEF.Concrete steps are as follows:

Step S601, the business that TDEF issues according to PCRF detects rule the business data flow of flowing through is detected, and the business of not reported to PCRF before having detected.

Step S602, TDEF reports the detected business that does not have before to PCRF.TDEF can realize the report to PCRF by the sign that reports corresponding service to detect this pre-configured between regular sign or PCRF and TDEF business.

Step S603 after the information that PCRF preservation TDEF reports, returns acknowledge message to TDEF.

Step S604, PCRF carries out strategic decision-making according to the business information that CAMEL-Subscription-Information, access information, network strategy and TDEF report.The PCRF strategy comprises PCC rule and corresponding QoS rule.The PCC rule comprises four layers filter, and PCEF detects business data flow according to four layers of filter, carries out strategy and the control of chargeing.If the PCC rule that issues also needs further to carry out the policy control more than four layers, then PCRF also can customize the corresponding service executing rule.Professional executing rule comprises the filter more than four layers, and TDEF just can detect business data flow according to filter more than four layers like this, and carries out strategy and the control of chargeing.PCRF can also formulate event trigger, is used for carrying out event subscription to BBERF, PCEF or TDEF.

Step S605, PCRF gives information to BBERF transmission gateway control and QoS rule, carries the QoS rule, and event trigger.

Step S606, BBERF installs QoS rule and event trigger.BBERF place gateway can be carried out QoS control according to QoS, and carries out foundation, modification or the termination of carrying.

Step S607, BBERF returns acknowledge message to PCRF.

Step S608, PCRF gives information to PCEF transmission strategy and charging regulation, carries PCC rule and event trigger.For each PCC rule, PCRF can send the policy control that whether needs to carry out filtering more than four layers to PCEF simultaneously and indicate, if need, then PCEF will be transmitted to TDEF with the business data flow of this PCC rule match.

Step S609, PCEF installs PCC rule and event trigger.PCEF will will be transmitted to TDEF with the business data flow of this PCC rule match according to the policy control indication of filtering more than four layers.

Step S610, PCEF returns acknowledge message to PCRF.

Step S611, PCRF sends professional executing rule to TDEF and gives information, and professional executing rule and event trigger are provided.

Step S612, TDEF install professional executing rule and event trigger.

Step S613, TDEF returns acknowledge message to PCRF.

By above-mentioned flow process, BBERF and PCEF have realized business is carried out the filtration and the policy control of business data flow below four layers or four layers, and TDEF has realized business is carried out the filtration and the strategy of business data flow more than four layers and the control of chargeing.Thereby realize multi-level control to business.

Embodiment five

Fig. 7 is the flow chart of the method embodiment five of the strategy that strengthens of the present invention and the control of chargeing, as shown in Figure 7, after present embodiment has been described and has been received the QoS rule that please look for novelty or detected the PCRF events subscribed by BBERF, the IP-CAN session modification flow process of initiating, in this flow process, adopt the PMIPv6 agreement to communicate between the resident gateway of gateway that BBERF is resident and PCEF.Concrete steps are as follows:

Step S701, BBERF receive new QoS rule request or detect the PCRF events subscribed.

Step S702, BBERF sends gateway control and QoS rule request message to PCRF, carries the resource authorization request or detects the PCRF events subscribed.

Step S703, PCRF is according to the information of BBERF report, update strategy.The PCRF strategy comprises PCC rule and corresponding QoS rule.If the PCC rule that issues also needs further to carry out the strategy more than four layers and the control of chargeing, then PCRF also can customize the corresponding service executing rule.The PCC rule comprises four layers filter, and PCEF carries out strategy and the control of chargeing according to four layers of filter to business data flow.PCRF is new business executing rule (before formulating) or formulate professional executing rule (before not formulating) more also.Professional executing rule comprises the filter that detects information more than four layers, and TDEF just can carry out strategy and the control of chargeing to business data flow according to filter more than four layers like this.

Step S704, PCRF send to BBERF and return acknowledge message, wherein carry the QoS rule.

Step S705, BBERF installs the QoS rule.BBERF place gateway can be carried out QoS control according to the QoS rule, and the foundation of carrying, modification or termination

Step S706, PCRF gives information to PCEF transmission strategy and charging regulation, carries PCC rule and event trigger.For each PCC rule, PCRF can send the policy control that whether needs to carry out filtering more than four layers to PCEF simultaneously and indicate, if need, then PCEF will be transmitted to TDEF with the business data flow of this PCC rule match.

Step S707, PCEF installs PCC rule and event trigger.PCEF will will be transmitted to TDEF with the business data flow of this PCC rule match according to the policy control indication of filtering more than four layers.

Step S708, PCEF returns acknowledge message to PCRF.

Step S709, PCRF sends professional executing rule to TDEF and gives information, and professional executing rule and event trigger are provided.

Step S710, TDEF install professional executing rule and event trigger.

Step S711, TDEF returns acknowledge message to PCRF.

Embodiment six

Fig. 8 is the flow chart of the method embodiment six of the strategy that strengthens of the present invention and the control of chargeing, as shown in Figure 8, after present embodiment has been described and has been received the QoS rule that please look for novelty or detected the PCRF events subscribed by TDEF, the IP-CAN session modification flow process of initiating, in this flow process, adopt the PMIPv6 agreement to communicate between the resident gateway of gateway that BBERF is resident and PCEF.Concrete steps are as follows:

Step S801, TDEF detect the PCRF events subscribed and take place.

Step S802, TDEF is to the PCRF reported event.

Step S803, the incident that PCRF reports according to TDEF, update strategy.The modification of this strategy will be referred to the variation of bearing bed resource.PCRF policy update PCC rule and QoS rule.

Step S804, PCRF is to TDEF echo reply message.

Step S805, PCRF gives information to BBERF transmission gateway control and QoS rule, carries the QoS rule of renewal.

Step S806, BBERF installs the QoS rule.BBERF place gateway can be carried out QoS control according to the QoS rule, and the foundation of carrying, modification or termination.

Step S807, BBERF returns acknowledge message to PCRF.

Step S808, PCRF gives information to PCEF transmission strategy and charging regulation, carries the PCC rule of renewal.

Step S809, PCEF installs the PCC rule of upgrading.

Step S810, PCEF returns acknowledge message to PCRF.

Embodiment seven

Fig. 9 is the flow chart of the method embodiment five of the strategy that strengthens of the present invention and the control of chargeing, as shown in Figure 9, present embodiment has been described because after subscription data changes, the IP-CAN session modification flow process that causes, in this flow process, adopt the PMIPv6 agreement to communicate between the resident gateway of gateway that BBERF is resident and PCEF.In the present embodiment, suppose that the business of whether user's business data flow being carried out more than four layers detects and policy and charging control, all is based on the signatory of user.Even user's the business that does not allow more than four layers that is signed up as detects, and the policy and charging control of the business data flow more than four layers is not carried out yet so.Concrete steps are as follows:

Step S901, SPR detect the signatory document of user and change.This variation can be understood as the user has increased professional perception permission to some business, or has deleted the professional perception permission of some business or deleted professional perception permission for all business fully.

Step S902, SPR sends signatory document updating message to PCRF, carries the signatory document of renewal.

Step S903, PCRF returns acknowledge message to SPR.

Step S904, PCRF carries out strategic decision-making according to the signatory document that upgrades.The PCRF update strategy comprise following one or more:

(a) the professional perception of some business is permitted then PCRF will formulate new business and detect rule, the professional detection of initiation rules modification flow process if increased.

(b) if deleted the professional perception permission of some business, and the business that PCRF has issued these business detects rule, but PCRF does not also formulate at these professional strategy execution sessions (comprising PCC rule and professional executing rule), promptly also do not carry out the strategy more than four layers and the control of chargeing, PCRF will initiate the professional flow process that detects session modification so, and the deletion corresponding business detects rule.

(c) if deleted the professional perception permission of some business, business detection rule and PCRF that while PCRF has issued these business have issued these professional strategy execution rules (comprising PCC rule and professional executing rule), promptly carried out the strategy more than four layers and the control of chargeing, PCRF not only will initiate to delete the professional session modification flow process deletion corresponding business executing rule that detects so, also to notify PCEF to revise route orientation (promptly adopt the PCC rule that business data flow is carried out directly mailing to the PDN network after the policy control, do not need to mail to again TDEF).

(d) if deleted the professional perception permission of all business, then PCRF will initiate the professional termination flow process that detects session, and notice PCEF revises the route orientation.

If PCRF need notify PCEF to revise some professional route orientation, then execution in step S905 is to step S906.If PCRF need initiate the professional flow process that detects session modification, then execution in step S908 is to step S910.

Step S905, if PCRF need notify PCEF to revise some professional route orientation, PCRF sends strategy and charging regulation gives information to PCEF, cancellation issue before when the coupling of business data flow and PCC rule, this business data flow is continued to be transmitted to the indication of TDEF.

Step S906, PCEF implementation strategy, cancellation PCC rule and the binding relationship that is forwarded to TDEF.

Step S907, PCEF returns acknowledge message to PCRF.

If PCRF need initiate the professional flow process that detects session modification, then execution in step S908 is to step S910.

Step S908, PCRF sends the professional session modification flow process that detects to TDEF, carries the business that will increase or delete and detects rule, and/or carry the professional executing rule that needs deletion.

Step S909, the TDEF implementation strategy increases or the business of deletion detects rule, and/or deletes professional executing rule.

Step S910, TDEF returns acknowledge message.

The professional session that detects if PCRF need terminate, then execution in step S911 is to step S913.

Step S911, PCRF sends the professional termination conversation request message that detects to TDEF.

This business of deleting step S912, TDEF detects the relevant strategy of session (professional rule, professional executing rule and the event trigger etc. of detecting).

Step S913, TDEF returns acknowledge message.

Figure 10 is a kind of composition structural representation of the system of the strategy of the present invention's enhancing and the control of chargeing, as shown in figure 10, the system of the strategy that the present invention strengthens and the control of chargeing comprise unit 1001 be set, formulate unit 1002, determining unit 1003, first transmitting element 1004, second transmitting element 1005 and carry out and return unit 1006, wherein:

Unit 1001 is set, is used for TDEF being set in the PCC system;

Formulate unit 1002, be used to formulate PCC rule, professional rule and the professional executing rule of detecting;

Determining unit 1003 is used to determine whether the business data flow with described IP-CAN session is carried out strategy and the control of chargeing more than four layers;

First transmitting element 1004 is used for sending the PCC rule and/or indicating whether control that the business data flow with described PCC rule match is carried out strategy more than four layers and charges to PCEF;

Second transmitting element 1005 is used for and will described professional detection rule and/or professional executing rule be sent to described TDEF;

Carry out and return unit 1006, be used for described business data flow is carried out the described professional rule that detects, give described PCRF the identification-information reporting that detects data service, and/or, described professional executing rule is carried out in detected data service.

Wherein, formulate unit 1002 in the initiation process of IP-CAN session foundation or IP-CAN session modification, formulate the PCC rule according to user's CAMEL-Subscription-Information;

Accordingly, determining unit 1003 is further determined the business data flow with described IP-CAN session is carried out strategy more than four layers and during the control of chargeing, described PCEF will be transmitted to described TDEF with the business data flow of described PCC rule match, and, with not with any PCC rule match but strategy more than four layers is carried out in described PCRF indication and the business data flow of the control of chargeing is transmitted to described TDEF.The process that above-mentioned IP-CAN session is set up by the resident gateway of bearing binding and event reporting function entity B BERF receive set up the IP-CAN conversation request message after and initiate; When the process of above-mentioned IP-CAN session modification provides the business information of IP-CAN by Application Function AF and initiate, or detect after the new business by TDEF and initiate, or after BBERF receives request QoS rule or detects the PCRF events subscribed and initiate, or initiate in the new QoS rule of the TDEF request of receiving or after detecting the PCRF events subscribed.

Figure 11 forms structural representation for the strategy that the present invention strengthens with the another kind of the system of the control of chargeing, as shown in figure 11, on the basis of the system that the strategy and the charging of enhancing shown in Figure 10 are controlled, the system of the strategy that the present invention strengthens and the control of chargeing also comprises delete cells 1007, be used for conversation procedure at deletion IP-CAN, delete the PCC rule relevant with described IP-CAN session, and described professional executing rule.

In the system of the strategy of enhancing of the present invention and the control of chargeing, formulate unit 1002 and formulate the PCC rule, determining unit 1003 determines whether the business data flow with described PCC rule match is carried out strategy and the control of chargeing more than four layers according to user's subscription data.

Accordingly, determining unit 1003 is determined the business data flow with described PCC rule match is carried out strategy more than four layers and during the control of chargeing, described PCEF will be transmitted to described TDEF with the business data flow of described PCC rule match.

When subscription data upgraded, whether determining unit 1003 redefines carried out strategy and the control of chargeing more than four layers to the business data flow with described IP-CAN session, redefines professional executing rule when being, and sends to TDEF by second transmitting element 1005.

Those skilled in the art are to be understood that, the system of the strategy of Figure 10 and enhancing shown in Figure 11 and the control of chargeing designs for the strategy of realizing aforesaid enhancing and the method for chargeing control, the function of each processing unit can be understood to the description of method shown in Figure 9 with reference to Fig. 3 in the system of the strategy of Figure 10 and enhancing shown in Figure 11 and the control of chargeing, the function of each processing unit can realize by the program that runs on the processor, also can realize by concrete logical circuit.

The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.

Claims

1. the method for the strategy of an enhancing and the control of chargeing is provided with professional the detection and carries out functional entity TDEF in strategy and charging control PCC system; It is characterized in that described method comprises:

PCEF receive that described PCRF carries out more than four layers strategy to described business data flow and the indication of the control of chargeing after, according to described indication detected business data flow is sent to TDEF;

Described TDEF carries out the described professional rule that detects to described business data flow, and the business information of detected business data flow is reported described PCRF, and/or, business data flow is carried out described professional executing rule.

2. method according to claim 1 is characterized in that,

In the initiation process of IP-CAN session foundation or IP-CAN session modification, described PCRF formulates the PCC rule according to user's CAMEL-Subscription-Information;

Described method also comprises:

Described PCEF will carry out that the business data flow of strategy and the control of chargeing is transmitted to described TDEF more than four layers with described PCC rule match and described PCRF indication; And, described PCEF will be not with any PCC rule match but described PCRF indication carry out the professional business data flow that detects and be transmitted to described TDEF.

3. method according to claim 2 is characterized in that, the process that described IP-CAN session is set up by the resident gateway of bearing binding and event reporting function entity B BERF receive set up the IP-CAN conversation request message after and initiate;

4. method according to claim 2 is characterized in that, described method also comprises:

In deletion IP-CAN conversation procedure, described PCRF indicates the described PCEF deletion PCC rule relevant with described IP-CAN session, and indication TDEF deletes described IP-CAN session relevant business detection rule and/or professional executing rule.

5. method according to claim 2 is characterized in that, described method also comprises:

When subscription data upgrades, whether described PCRF redefines business data flow to described IP-CAN session and carries out professional the detection and/or the strategy and the control of chargeing more than four layers, redefine professional detection rule and/or professional executing rule when being, and be updated among the TDEF.

6. according to each described method of claim 1 to 5, it is characterized in that, in the described PCC system described TDEF be set, be specially:

Described TDEF is connected with described PCRF.

7. a PCC system comprises user-subscribed database SPR, AF, PCRF, BBERF, PCEF and charge system, and described SPR, described AF, described BBERF and described PCEF are connected with described PCRF respectively, and described PCEF is connected in described charge system; It is characterized in that described PCC system also comprises TDEF, is connected with described PCRF; Described PCC system is used for the method for the strategy of the described enhancing of claim 1 and the control of chargeing.

8. PCC according to claim 7 system is characterized in that, is connected by the Sx interface between described TDEF and the described PCRF.

9. the system of the strategy of an enhancing and the control of chargeing is characterized in that, comprise the unit being set, formulating unit, determining unit, first transmitting element, second transmitting element and execution and returning the unit, wherein:

The unit is set, is used for TDEF being set in the PCC system;

Determining unit is used to determine whether the business data flow with described IP-CAN session is carried out professional the detection and/or strategy and the control of chargeing more than four layers;

First transmitting element is used for sending the PCC rule and/or indicating whether to PCEF described business data flow is carried out professional the detection and/or the strategy and the control of chargeing more than four layers;

Second transmitting element is used for described professional detection rule and/or professional executing rule are sent to described TDEF;

Carry out and return the unit, be used for described business data flow is carried out the described professional rule that detects, detected business information is reported described PCRF, and/or, described business data flow is carried out described professional executing rule.

10. system according to claim 9 is characterized in that, the PCC rule is formulated according to user's CAMEL-Subscription-Information in described formulation unit in the initiation process of IP-CAN session foundation or IP-CAN session modification;

Accordingly, when the business of carrying out the definite business data flow to described IP-CAN session of described determining unit detects, described PCEF will be not with any PCC rule match but described PCRF indication carry out the professional business data flow that detects and be transmitted to described TDEF, and/or described determining unit further determines that business data flow to described IP-CAN session carries out strategy more than four layers and during the control of chargeing, described PCEF will be transmitted to described TDEF with the business data flow of described PCC rule match.

11. system according to claim 10 is characterized in that, the process that described IP-CAN session is set up by the resident gateway of bearing binding and event reporting function entity B BERF receive set up the IP-CAN conversation request message after and initiate;

12. system according to claim 10 is characterized in that, described system also comprises:

Delete cells is used for the conversation procedure at deletion IP-CAN, deletes the PCC rule relevant with described IP-CAN session, and described professional rule and/or the professional executing rule of detecting.

13. system according to claim 10, it is characterized in that, when described subscription data upgrades, whether described determining unit redefines business data flow to described IP-CAN session and carries out professional the detection and/or the strategy and the control of chargeing more than four layers, redefine professional detection rule and/or professional executing rule when being, and send to TDEF by described second transmitting element.