CN102137368B - Enhanced policy and charge control method and system and PCC (Policy Charge Control) system - Google Patents

Enhanced policy and charge control method and system and PCC (Policy Charge Control) system Download PDF

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Publication number
CN102137368B
CN102137368B CN201010101353.2A CN201010101353A CN102137368B CN 102137368 B CN102137368 B CN 102137368B CN 201010101353 A CN201010101353 A CN 201010101353A CN 102137368 B CN102137368 B CN 102137368B
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business
pcrf
rule
tdef
data flow
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CN102137368A (en
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周晓云
刘小华
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2010/079118 priority patent/WO2011091682A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/02—Capturing of monitoring data
    • H04L43/028—Capturing of monitoring data by filtering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H04L12/1403—Architecture for metering, charging or billing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0894—Policy-based network configuration management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/66—Policy and charging system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24—Accounting or billing

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Meter Arrangements (AREA)
  • Telephonic Communication Services (AREA)

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, PCC system that the strategy strengthened and charging control
Technical field
The present invention relates to the strategy of enhancing and the technology of charging control (PCC, Policy and Charging Control), particularly relate to a kind of strategy of enhancing and the method and system of charging control, and PCC system.
Background technology
Third generation partner program (3GPP, 3rd Generation Partnership Project) PCC system be a functional framework that can be applied to multiple access technology, such as, 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, grouping system (the EPS of intercommunicated wireless local area network (I-WLAN) and evolution, Evolved Packet System) etc.
Fig. 1 is the non-roaming configuration diagram of Rel-8PCC of correlation technique, as shown in Figure 1, PCC system comprises user-subscribed database (SPR, 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), strategy and control n-back test entity (PCEF, Policy andControl Enforcement Function) and charge system, wherein, SPR is connected with PCRF by Sp interface, AF is connected with PCRF by Rx interface, BBERF is connected with PCRF by Gxx interface, PCEF is connected with PCRF by Gx interface, charge system comprises line charge system (OCS, OnlineCharging System) and off-line accounting system (OFCS, Offline Charging System), PCEF is connected to OCS by Gy interface, and PCEF is connected to OFCS by Gz interface.Referring to Fig. 1, each logical functional entity in PCC system and interface function thereof are described:
AF is for providing the access point of service application, and the Internet resources that these service application use need to carry out dynamic policy control.When service surface carries out parameter negotiation, related service information is passed to PCRF by AF.If these business information are consistent with the strategy of PCRF, then PCRF accepts this negotiation; Otherwise PCRF refuses this negotiation, and provide the acceptable service parameter of PCRF in feedback simultaneously.Subsequently, these parameters can be returned to subscriber equipment (UE, User Equipment) by AF.Wherein, the interface between AF and PCRF is 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 the detection of business data flow, gate (Gating Control), service quality (QoS, Quality of Service) control and based on the charging regulation etc. of data flow.The strategy that PCRF is formulated and charging regulation send to PCEF to perform, and meanwhile, PCRF also needs to ensure that these rules are consistent with the CAMEL-Subscription-Information of user.PCRF generate strategy with charging regulation according to comprising: obtain the information relevant to business from AF; Obtain and user policy, billing control and subscription information from SPR; The information with carrying network of relation is obtained from PCEF.
PCEF is usually located in gateway (GW, Gate-Way), performs the strategy formulated of PCRF and charging regulation at loading end.Business datum flow filter in the rule that PCEF sends according to PCRF detects business data flow, and then performs to these business data flows the strategy and charging regulation that PCRF formulates.When carrying is set up, the rule that PCEF sends according to PCRF carries out QoS mandate, and carries out gate control according to the execution of AF.According to the charging regulation that PCRF sends, PCEF performs the operation of corresponding service data flow charge, and charging both can be online charging, also can be offline charging.If online charging, then PCEF needs to carry out credit management together with OCS.During offline charging, exchange correlation charge information between PCEF and OFCS.Interface between PCEF and PCRF is Gx interface, and the interface between OCS is Gy interface, and the interface between OFCS is Gz interface.PCEF is generally positioned on the gateway of network, as the GGSN (GGSN, Gateway GPRS Support Node) in GPRS and the packet data gateway (PDG, Packet Data Gateway) in I-WLAN.
BBERF is used for bearing binding, the checking of up bearing binding and event report.When UE is accessed by E-UTRAN, and adopt mobility management protocol to be the mobile IP v 6 (DSMIPv6 supporting two stack between S-GW and P-GW, Moblie IPv6 support for dual stack Hosts and Routers) agreement time, BBERF is located in S-GW, when UE is by the access of trusted non-3 GPP access system, BBERF is positioned at trusted non-3 GPP access gateway, when UE by the access of trustless non-3 GPP access system time, BBERF is positioned at packet data gateway (ePDG, the Evolved Packet Data Gateway of evolution.Now, PCEF no longer performs bearing binding function.
SPR stores the user policy, billing control and subscription information relevant to charging with policy control.Interface between SPR and PCRF is Sp interface.
The control and management of user credit under online charging mode is carried out together with OCS with PCEF.OFCS and PCEF completes the billing operation under offline charging mode together.
PCC system achieves the policy and charging control to IP connection Access Network (IP-CAN, the IP Connectivity Access Network) session that UE sets up for access PDN by above each functional entity.
Adopt current PCC framework, there is following problem:
(1) information of business is provided by AF, and PCRF carries out strategic decision-making according to this information.And in existing network application, under a lot of scene, there is no AF.IP Multimedia System (IMS, IMS IPMultimedia Subsystem) etc. the business of dialogue-based class can adopt initial session protocol (SIP, SIPSession Initiation P rotocol) operation layer that conversates of signaling consults (as code encoding/decoding mode, medium type, required bandwidth etc.), the notification of business information PCRF that P-CSCF (AF namely in PCC system) will consult, and carry out QoS mandate by PCRF.And the business of a large amount of non-session class in existing network, as the voice protocol (VoIP of current application IP based network, Voice Over Internet Protocol), IPTV (IPTV, IPTV Internet Protocol Television), video request program (VoD, Video OnDemand), the business etc. such as online game can not carry out the media negotiation of application layer, also can not perform process business information being sent to PCRF.For these non-session class business, although can carry out certain policy authorization by configuring some static policies on PCRF, but this mode strongly limit the advantage of PCC system.
(2) current, the filter wrapped for detecting IP in the PCC rule that PCRF issues is all adopt five-tuple.And under some scene, only adopting five-tuple can not two kinds of different traffic differentiation out, this just needs the information to more than four layers to detect.
Summary of the invention
In view of this, main purpose of the present invention is the method and system providing a kind of strategy of enhancing and charging to control, and PCC system, the strategy to non-session class business and charging control can be realized, to detect the information of business data flow more than four layers especially, to have widened the Practical Performance of PCC system.
For achieving the above object, technical scheme of the present invention is achieved in that
The method that the strategy of enhancing and charging control, the business that arranges in strategy and charging control PCC system detects n-back test entity TDEF; Described method comprises:
After "Policy and Charging Rules Function entity PCRF determines that the business data flow connecting Access Network IP-CAN session to IP carries out the control of more than four layers strategies and charging, formulate business detected rule and/or business executing rule and send to described TDEF;
PCEF receive described PCRF to business data flow carry out more than four layers strategy and charging control instruction after, according to described instruction, the business data flow detected is sent to TDEF;
Described TDEF performs described business detected rule to described business data flow, will detect that the identification-information reporting of data service is to described PCRF, and/or, described business executing rule is performed to the data service detected.
Preferably, in the initiation process of IP-CAN session establishment or IP-CAN session modification, described PCRF formulates PCC rule according to the CAMEL-Subscription-Information of user;
Described method also comprises:
When described PCEF determines to carry out the control of more than four layers strategies and charging to the business data flow with described PCC rule match, the business data flow with described PCC rule match is transmitted to described TDEF by described PCEF; And described PCEF is not by with any PCC rule match but described PCRF indicates the business data flow of control carrying out more than four layers strategies and charging to be transmitted to described TDEF.
Preferably, described IP-CAN session establishment process by bearing binding and the resident gateway of event reporting function entity B BERF receive set up IP-CAN conversation request message after initiate;
Initiate when the process of described IP-CAN session modification provides the business information of IP-CAN by Application Function AF, or initiate after new business being detected by TDEF, or receive request new service quality QoS rule at BBERF or initiate after the event that PCRF subscribes to being detected, or it is regular or initiate after the event that PCRF subscribes to being detected to receive the new QoS of request at TDEF.
Preferably, described method also comprises:
In deletion IP-CAN conversation procedure, described PCRF determine that relevant to described IP-CAN session PCC rule comprises that described more than four layers strategies and charging control regular time, control described PCEF and delete the PCC rule relevant to described IP-CAN session, and control TDEF deletes described business executing rule.
Preferably, described method also comprises:
When subscription data upgrades, described PCRF redefine whether to described IP-CAN session business data flow carry out the control of more than four layers strategies and charging, redefine business executing rule when being, and be updated in TDEF.
Preferably, in described PCC system, described TDEF is set, is specially:
Described TDEF is connected with described PCRF and charge system respectively.
A kind of PCC system, comprise user-subscribed database SPR, AF, PCRF, BBERF, PCEF and charge system, described SPR, described AF, described BBERF are connected with described PCRF respectively with described PCEF, and described PCEF is connected to described charge system; Described PCC system also comprises TDEF, is connected respectively with described PCRF and described charge system; Described PCC system is used for the strategy of aforesaid enhancing and the method for charging control.
Preferably, be connected by Sx interface between described TDEF with described PCRF.
The system that the strategy of enhancing and charging control, comprises setting unit, formulates unit, determining unit, the first transmitting element, the second transmitting element and execution and return unit, wherein:
Setting unit, for arranging TDEF in PCC system;
Formulate unit, for formulating PCC rule, business detected rule and business executing rule;
Determining unit, for determining whether the control business data flow with described IP-CAN session being carried out to more than four layers strategies and charging;
First transmitting element, for sending PCC rule and/or indicating whether to carry out more than four layers strategies and the control of charging to the business data flow with described PCC rule match to PCEF;
Second transmitting element, for sending to described TDEF to described business detected rule and/or business executing rule;
Performing and return unit, for performing described business detected rule to described business data flow, will detect that the identification-information reporting of data service is to described PCRF, and/or, described business executing rule is performed to the data service detected.
Preferably, described formulation unit, in the initiation process of IP-CAN session establishment or IP-CAN session modification, formulates PCC rule according to the CAMEL-Subscription-Information of user;
Accordingly, when described determining unit is determined to carry out the control of more than four layers strategies and charging to the business data flow with described IP-CAN session further, business data flow with described PCC rule match is transmitted to described TDEF by described PCEF, and, by not with any PCC rule match but described PCRF indicates the business data flow of control carrying out more than four layers strategies and charging to be transmitted to described TDEF.
Preferably, described IP-CAN session establishment process by bearing binding and the resident gateway of event reporting function entity B BERF receive set up IP-CAN conversation request message after initiate;
Initiate when the process of described IP-CAN session modification provides the business information of IP-CAN by Application Function AF, or initiate after new business being detected by TDEF, or receive request new service quality QoS rule at BBERF or initiate after the event that PCRF subscribes to being detected, or it is regular or initiate after the event that PCRF subscribes to being detected to receive the new QoS of request at TDEF.
Preferably, described system also comprises:
Delete cells, in deletion IP-CAN conversation procedure, deletes the PCC rule relevant to described IP-CAN session, and described business executing rule.
Preferably, when described subscription data upgrades, described determining unit redefines the control whether business data flow with described IP-CAN session being carried out to more than four layers strategies and charging, redefines business executing rule, and send to TDEF by described second transmitting element when being.
In the present invention, business detecting function (TDF is set up in current PCC system, Traffic DetectionFunction), realize detecting the information of business data flow more than four layers, like this to providing business information will be abundanter to PCRF, be conducive to PCRF and carry out strategic decision-making, thus achieve multi-level, multidimensional policy and charging control is carried out to business datum.
Accompanying drawing explanation
Fig. 1 is the non-roaming configuration diagram of Rel-8PCC of correlation technique;
Fig. 2 is PCC system of the present invention composition structural representation;
Fig. 3 is the flow chart of the embodiment of the method one that the strategy that strengthens of the present invention and charging control;
Fig. 4 is the flow chart of the embodiment of the method two that the strategy that strengthens of the present invention and charging control;
Fig. 5 is the flow chart of the embodiment of the method three that the strategy that strengthens of the present invention and charging control;
Fig. 6 is the flow chart of the embodiment of the method four that the strategy that strengthens of the present invention and charging control;
Fig. 7 is the flow chart of the embodiment of the method five that the strategy that strengthens of the present invention and charging control;
Fig. 8 is the flow chart of the embodiment of the method six that the strategy that strengthens of the present invention and charging control;
Fig. 9 is the flow chart of the embodiment of the method seven that the strategy that strengthens of the present invention and charging control;
Figure 10 is the one composition structural representation of the system that the strategy that strengthens of the present invention and charging control;
Figure 11 is the another kind composition structural representation of the system that the strategy that strengthens of the present invention and charging control.
Embodiment
Basic thought of the present invention is: the business that arranges in current PCC system detects n-back test entity (TDEF, Traffic Detection Enforcement Function), to carry out gate, qos policy control etc. to business data flow more than four layers filters, thus achieve multi-level, multidimensional policy and charging control is carried out to business datum.
For making the object, technical solutions and advantages of the present invention clearly understand, by the following examples also with reference to accompanying drawing, the present invention is described in more detail.
Fig. 2 is PCC system of the present invention composition structural representation, and as shown in Figure 2, PCC system of the present invention sets up TDEF in the PCC system shown in Fig. 1, and concrete, TDEF is arranged between charge system and PCRF, and TDEF is connected to PCRF by Sx interface.The major function of TDEF comprises:
1, the packet check rule (rule that the strategy of more than four layers and charging control) issued according to PCRF performs business datum packet check, packet is carried out to the analyzing and testing of more than four layers;
2, the business information of detection is reported to PCRF;
3, carry out gate based on more than four layers filters, qos policy performs;
4, the request needing to carry out bearing bed resource modifying is reported to PCRF;
5, the event reporting PCRF to subscribe to.
Below based on the PCC system shown in Fig. 2, illustrate the specific implementation of the strategy of the present invention's enhancing and the method for charging control further in detail.
Embodiment one
Fig. 3 is the flow chart of the embodiment of the method one that the strategy that strengthens of the present invention and charging control, and as shown in Figure 3, the present embodiment describes IP-CAN session establishment flow process, and concrete steps are as follows:
The resident gateway of step S301, BBERF receives sets up IP-CAN conversation request message, carries the information such as the mark of user, PDN mark in message.
Step S302, BBERF send gateway control session to PCRF and set up request message, carry user ID, PDN mark etc. in 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 signing document request message to SPR, carries user ID and PDN mark etc. in message.If store user-dependent CAMEL-Subscription-Information in PCRF, then directly perform step S305, formulate corresponding strategy according to CAMEL-Subscription-Information.
Step S304, SPR return the CAMEL-Subscription-Information of user according to user ID and PDN mark, wherein comprise the business the need of carrying out business detection and needs detection.
The CAMEL-Subscription-Information that step S305, PCRF return according to SPR, formulates default policy, comprises PCC rule and corresponding QoS rule.If desired carry out business detection, then the business that PCRF detects as required formulates business detected rule.Business detected rule generally includes the filter of more than four layers.If the PCC rule issued also needs the policy control performing more than four layers further, then PCRF also can customize corresponding business executing rule, business detected rule generally includes the filter of more than four layers and corresponding QoS information, as ensured 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 return gateway control session to BBERF and set up acknowledge message, carry QoS rule, event trigger etc. in message.BBERF installs QoS rule and event trigger.
The resident gateway of step S307, BBERF sends to the gateway that PCEF is resident and sets up IP-CAN conversation request message, carries the information such as user ID and PDN mark in message.In the present invention, step S307 can perform with step S302 simultaneously.
The resident gateway of step S308, PCEF is the IP-CAN session distributing IP address that UE request is set up.PCEF sends IP-CAN session establishment Indication message to PCRF, carries the information such as user ID, PDN mark and IP Address in message.This message is used for request and sets up Gx session.
Step S302 request is set up gateway control session according to user ID with PDN mark and is associated with the Gx session that step S308 request is set up by step S309, PCRF.The PCC rule that S304 formulates by PCRF, event trigger send to PCEF.PCRF, by sending the business data flow of this IP-CAN session to PCEF the need of the instruction carrying out business detection, if desired carries out business detection, then PCEF is by not being transmitted to TDEF with the business data flow of any PCC rule match.For each PCC rule, PCRF can send the need of carrying out more than the four layers strategies filtered and charging control instruction to PCEF simultaneously, if desired carry out more than the four layers strategies filtered and charging control to data stream, then the business data flow with this PCC rule match is transmitted to TDEF by PCEF.If do not need, then directly send to PDN network after PCEF PCC rule carries out policy and charging control to business data flow.
Step S310, if at least one PCC rule is successfully activated, the resident gateway of PCEF returns to the gateway that BBERF is resident sets up IP-CAN session response message, carries the IPAddress of IP-CAN session.
The resident gateway of step S311, BBERF returns sets up IP-CAN session response message, carries the IP address of IP-CAN session.
Step S312, PCRF send business to TDEF and detect session establishment request message, carry business detected rule and/or business executing rule in message.This request message is used for business of setting up and detects session.
Step S313, TDEF return acknowledge message to PCRF after installing business detected rule and/or business executing rule.
In the present invention, step S312 just can perform after step S305.
By above flow process, UE sets up IP-CAN session, and PCRF detects session associate realizing carrying out the gateway control session of policy control, Gx session and business to this IP-CAN session.The PCC issued according to PCRF rule is carried out the filtration of business data packet by PCEF, and performs corresponding strategy and charging control.If business data flow can with PCC rule match, and PCRF indicate this PCC rule detection to business data flow need to be transmitted to TDEF and make further policy and charging control, so this business data flow is sent to TDEF by PCEF; If business data flow can with PCC rule match, but PCRF do not indicate this PCC rule detection to business data flow need to be transmitted to TDEF and make further policy and charging control, so PCEF will not send to TDEF business datum, but directly mail to PDN network; If business data flow is not with any PCC rule match but PCRF indicates the business data flow of this IP-CAN session of PCEF to need to carry out business detection, so this business data flow is also sent to TDEF to carry out business detection by PCEF.
Embodiment two
Fig. 4 is the flow chart of the embodiment of the method two that the strategy that strengthens of the present invention and charging control, as shown in Figure 4, present embodiment describes after setting up IP-CAN session based on embodiment one, the termination flow process of the IP-CAN session that UE initiates, in this flow process, between the gateway that the resident gateway of BBERF is resident with PCEF, PMIPv6 agreement is adopted to communicate.Concrete steps are as follows:
The resident gateway of step S401, BBERF receives deletes IP-CAN conversation request message.The IP address etc. of mark as IP-CAN session of IP-CAN session is carried in message.
Step S402, BBERF send gateway control session termination request message to PCRF, and PCRF identifies relevant IP-CAN session and deletes corresponding QoS rule.
Step S403, PCRF return gateway control session termination acknowledge message to BBERF.
The resident gateway of step S404, BBERF sends to the gateway that PCEF is resident and deletes IP-CAN conversation request message.
Step S405, PCEF send 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, if the AF of this IP-CAN session association needs notified, then PCRF notifies the release of AF transfer resource.Notify AF if do not need, then directly perform step S410.
Step S409, AF return response message.
Step S410, PCRF return IP-CAN session termination acknowledge message.
The resident gateway of step S411, PCEF returns to the gateway that BBERF is resident and deletes IP-CAN session response message.
The resident gateway of step S412, BBERF returns deletes IP-CAN session response message.
Step S413, PCRF identify that the business relevant to this IP-CAN session detects session, and send business detection session termination request message to this TDEF.
Step S414, TDEF delete after identifying relevant business detected rule and business executing rule.
Step S415, TDEF return acknowledge message to PCRF.
Step S416, if subscribe to cancellation notice message before SPR, then PCRF sends to SPR and cancels signing notification request message.
Step S417, SPR return response message.
Embodiment three
Fig. 5 is the flow chart of the embodiment of the method three that the strategy that strengthens of the present invention and charging control, as shown in Figure 5, present embodiment describes the IP-CAN session modification flow process initiated by AF, in this flow process, between the gateway that the resident gateway of BBERF is resident with PCEF, adopt PMIPv6 agreement to communicate.Concrete steps are as follows:
Step S501, AF send application/business information to PCRF.
Step S502, PCRF return acknowledge message after preserving application/business information.
Step S503, PCRF carry out strategic decision-making according to CAMEL-Subscription-Information, access information, business information and network strategy.PCRF strategy comprises PCC rule and corresponding QoS rule.If the PCC rule issued also needs the strategy and the charging control that perform more than four layers further, then PCRF also can customize corresponding business executing rule.Business executing rule comprises the filter of detection more than four layers information and corresponding QoS information, and such TDEF just can carry out strategy and charging control according to more than four layers filters to business data flow.PCC rule comprises the filter of four layers, and PCEF carries out strategy and charging control according to four layers of filter to business data flow.PCRF can also formulate event trigger, for carrying out event subscription to BBERF, PCEF or TDEF.
Step S504, PCRF send gateway control to BBERF and QoS rule provides message, carries QoS rule, and event trigger.
Step S505, BBERF install QoS rule and event trigger.BBERF place gateway can perform corresponding quality control according to QoS rule, the foundation carrying out carrying, amendment or termination.
Step S506, BBERF return acknowledge message to PCRF.
Step S507, PCRF provide message to PCEF sending strategy and charging regulation, carry PCC rule and event trigger.For each PCC rule, PCRF can send the need of carrying out more than the four layers strategies filtered and charging control instruction to PCEF simultaneously, and if desired, then the business data flow with this PCC rule match is transmitted to TDEF by PCEF.
Step S508, PCEF install PCC rule and event trigger.The strategy filtered according to more than four layers and charging are controlled instruction and the business data flow with this PCC rule match are transmitted to TDEF by PCEF.
Step S509, PCEF return acknowledge message to PCRF.
Step S510, PCRF send business executing rule to TDEF and provide message, the business executing rule providing step S503 to customize and event trigger.
Step S511, TDEF install business executing rule and event trigger.
Step S512, TDEF return acknowledge message to PCRF.
By above-mentioned flow process, BBERF and PCEF achieve to business carry out less than four layers or four layers business data flows filtration and strategy and charging control, and TDEF achieve to business carry out more than four layers business data flows filtration and strategy and charging control.Thus the multi level control realized business.
Embodiment four
Fig. 6 is the flow chart of the embodiment of the method four that the strategy that strengthens of the present invention and charging control, as shown in Figure 6, present embodiment describes after new business being detected by TDEF according to business detected rule, the IP-CAN session modification flow process initiated, in this flow process, between the gateway that the resident gateway of BBERF is resident with PCEF, PMIPv6 agreement is adopted to communicate.Concrete steps are as follows:
The business detected rule that step S601, TDEF issue according to PCRF detects the business data flow flowed through, and the business do not reported to PCRF before detecting.
Step S602, TDEF report the business do not had before detected to PCRF.TDEF can by reporting the report of mark realization to PCRF of this business pre-configured between the mark of corresponding business detected rule or PCRF and TDEF.
After the information that step S603, PCRF preservation TDEF reports, return acknowledge message to TDEF.
The business information that step S604, PCRF report according to CAMEL-Subscription-Information, access information, network strategy and TDEF carries out strategic decision-making.PCRF strategy comprises PCC rule and corresponding QoS rule.PCC rule comprises the filter of four layers, and PCEF detects business data flow according to four layers of filter, carries out strategy and charging control.If the PCC rule issued also needs the policy control performing more than four layers further, then PCRF also can customize corresponding business executing rule.Business executing rule comprises the filter of more than four layers, and such TDEF just can detect business data flow according to more than four layers filters, and carries out strategy and charging control.PCRF can also formulate event trigger, for carrying out event subscription to BBERF, PCEF or TDEF.
Step S605, PCRF send gateway control to BBERF and QoS rule provides message, carries QoS rule, and event trigger.
Step S606, BBERF install QoS rule and event trigger.BBERF place gateway can perform QoS according to QoS and control, and the foundation of execution carrying, amendment or termination.
Step S607, BBERF return acknowledge message to PCRF.
Step S608, PCRF provide message to PCEF sending strategy and charging regulation, carry PCC rule and event trigger.For each PCC rule, PCRF can send the need of carrying out more than four layers policy control instructions of filtering to PCEF simultaneously, and if desired, then the business data flow with this PCC rule match is transmitted to TDEF by PCEF.
Step S609, PCEF install PCC rule and event trigger.Business data flow with this PCC rule match is transmitted to TDEF by the policy control of filtering according to more than four layers instruction by PCEF.
Step S610, PCEF return acknowledge message to PCRF.
Step S611, PCRF send business executing rule to TDEF and provide message, provide business executing rule and event trigger.
Step S612, TDEF install business executing rule and event trigger.
Step S613, TDEF return acknowledge message to PCRF.
By above-mentioned flow process, BBERF and PCEF achieves filtration and the policy control of business being carried out to less than four layers or four layers business data flows, and TDEF achieve to business carry out more than four layers business data flows filtration and strategy and charging control.Thus the multi level control realized business.
Embodiment five
Fig. 7 is the flow chart of the embodiment of the method five that the strategy that strengthens of the present invention and charging control, as shown in Figure 7, present embodiment describes by BBERF receive please look for novelty QoS rule or after the event that PCRF subscribes to being detected, the IP-CAN session modification flow process initiated, in this flow process, between the gateway that the resident gateway of BBERF is resident with PCEF, PMIPv6 agreement is adopted to communicate.Concrete steps are as follows:
Step S701, BBERF receive new QoS rule request or the event that PCRF subscribes to detected.
Step S702, BBERF send gateway control and QoS rule request message to PCRF, carry resource authorization request or the event that PCRF subscribes to detected.
The information that step S703, PCRF report according to BBERF, update strategy.PCRF strategy comprises PCC rule and corresponding QoS rule.If the PCC rule issued also needs the strategy and the charging control that perform more than four layers further, then PCRF also can customize corresponding business executing rule.PCC rule comprises the filter of four layers, and PCEF carries out strategy and charging control according to four layers of filter to business data flow.PCRF also may more new business executing rule (before formulating) or formulation business executing rule (before not formulating).Business executing rule comprises the filter of detection more than four layers information, and such TDEF just can carry out strategy and charging control according to more than four layers filters to business data flow.
Step S704, PCRF send to BBERF and return acknowledge message, wherein carry QoS rule.
Step S705, BBERF install QoS rule.BBERF place gateway can perform QoS according to QoS rule and control, and the foundation carrying out carrying, amendment or termination
Step S706, PCRF provide message to PCEF sending strategy and charging regulation, carry PCC rule and event trigger.For each PCC rule, PCRF can send the need of carrying out more than four layers policy control instructions of filtering to PCEF simultaneously, and if desired, then the business data flow with this PCC rule match is transmitted to TDEF by PCEF.
Step S707, PCEF install PCC rule and event trigger.The policy control instruction that PCEF will filter according to more than four layers, is transmitted to TDEF by the business data flow with this PCC rule match.
Step S708, PCEF return acknowledge message to PCRF.
Step S709, PCRF send business executing rule to TDEF and provide message, provide business executing rule and event trigger.
Step S710, TDEF install business executing rule and event trigger.
Step S711, TDEF return acknowledge message to PCRF.
Embodiment six
Fig. 8 is the flow chart of the embodiment of the method six that the strategy that strengthens of the present invention and charging control, as shown in Figure 8, present embodiment describes by TDEF receive please look for novelty QoS rule or after the event that PCRF subscribes to being detected, the IP-CAN session modification flow process initiated, in this flow process, between the gateway that the resident gateway of BBERF is resident with PCEF, PMIPv6 agreement is adopted to communicate.Concrete steps are as follows:
Step S801, TDEF detect that the event that PCRF subscribes to occurs.
Step S802, TDEF are to PCRF reported event.
The event that step S803, PCRF report according to TDEF, update strategy.The amendment of this strategy will relate to the change of bearing bed resource.PCRF policy update PCC is regular and QoS is regular.
Step S804, PCRF return response message to TDEF.
Step S805, PCRF send gateway control to BBERF and QoS rule provides message, carries the QoS rule of renewal.
Step S806, BBERF install QoS rule.BBERF place gateway can perform QoS according to QoS rule and control, and the foundation carrying out carrying, amendment or termination.
Step S807, BBERF return acknowledge message to PCRF.
Step S808, PCRF provide message to PCEF sending strategy and charging regulation, carry the PCC rule of renewal.
Step S809, PCEF install the PCC rule upgraded.
Step S810, PCEF return acknowledge message to PCRF.
Embodiment seven
Fig. 9 is the flow chart of the embodiment of the method five that the strategy that strengthens of the present invention and charging control, as shown in Figure 9, present embodiment describes due to after subscription data changes, the IP-CAN session modification flow process caused, in this flow process, between the gateway that the resident gateway of BBERF is resident with PCEF, PMIPv6 agreement is adopted to communicate.In the present embodiment, assuming that whether detect and policy and charging control the business that the business data flow of user performs more than four layers, be all signing based on user.Even being signed up as of user does not allow the business of more than four layers to detect, and so the policy and charging control of business data flow of more than four layers is not also carried out.Concrete steps are as follows:
Step S901, SPR detect that user's document of contracting changes.This change can be understood as user and adds and permit the service-aware of some business, or deletes the service-aware license of some business or the service-aware deleted completely for all business is permitted.
Step S902, SPR send signing document updating message to PCRF, carry the signing document of renewal.
Step S903, PCRF return acknowledge message to SPR.
Step S904, PCRF carry out strategic decision-making according to the signing document upgraded.PCRF update strategy comprise following one or more:
Permit the service-aware of some business if a () adds, then PCRF will formulate new business detected rule, initiates business detected rule modification process.
If b () deletes the service-aware license of some business, and PCRF has issued the business detected rule of these business, but PCRF does not also formulate the strategy execution session (comprising PCC rule and business executing rule) for these business, namely strategy and the charging of also not carrying out more than four layers control, so the business of initiation is detected the flow process of session modification by PCRF, deletes corresponding business detected rule.
If c () deletes the service-aware license of some business, simultaneously PCRF has issued the business detected rule of these business and PCRF has issued the strategy execution rule (comprising PCC rule and business executing rule) of these business, namely strategy and the charging of having carried out more than four layers control, so PCRF not only will initiate deletion business detection session modification flow process and delete corresponding business executing rule, also to notify that PCEF revises route orientation and (directly mails to PDN network after namely adopting PCC rule to carry out policy control to business data flow, do not need to mail to TDEF again).
If d () deletes the service-aware license of all business, then the business of initiation is detected the termination flow process of session by PCRF, and it is directed to notify that PCEF revises route.
If PCRF needs to notify that PCEF revises the route orientation of some business, then perform step S905 to step S906.If PCRF needs initiation business to detect the flow process of session modification, then perform step S908 to step S910.
Step S905, if PCRF needs to notify that PCEF revises the route orientation of some business, PCRF provides message to PCEF sending strategy and charging regulation, issue before cancellation when the mating of business data flow and PCC rule, this business data flow is continued the instruction being transmitted to TDEF.
Step S906, PCEF implementation strategy, cancels PCC rule and the binding relationship being forwarded to TDEF.
Step S907, PCEF return acknowledge message to PCRF.
If PCRF needs initiation business to detect the flow process of session modification, then perform step S908 to step S910.
Step S908, PCRF send business to TDEF and detect session modification flow process, carry the business detected rule that will increase or delete, and/or carry the business executing rule needing to delete.
Step S909, TDEF implementation strategy, the business detected rule increasing or delete, and/or the business of deletion executing rule.
Step S910, TDEF return acknowledge message.
If PCRF needs termination business to detect session, then perform step S911 to step S913.
Step S911, PCRF send business to TDEF and detect termination conversation request message.
This business of deleting step S912, TDEF detects the relevant strategy (business detected rule, business executing rule and event trigger etc.) of session.
Step S913, TDEF return acknowledge message.
Figure 10 is the one composition structural representation of the system that the strategy that strengthens of the present invention and charging control, as shown in Figure 10, the strategy that the present invention strengthens and the system that charging controls comprise setting unit 1001, formulation unit 1002, determining unit 1003, first transmitting element 1004, second transmitting element 1005 and perform and return unit 1006, wherein:
Setting unit 1001, for arranging TDEF in PCC system;
Formulate unit 1002, for formulating PCC rule, business detected rule and business executing rule;
Determining unit 1003, for determining whether the control business data flow with described IP-CAN session being carried out to more than four layers strategies and charging;
First transmitting element 1004, for sending PCC rule and/or indicating whether to carry out more than four layers strategies and the control of charging to the business data flow with described PCC rule match to PCEF;
Second transmitting element 1005, for sending to described TDEF to described business detected rule and/or business executing rule;
Performing and return unit 1006, for performing described business detected rule to described business data flow, will detect that the identification-information reporting of data service is to described PCRF, and/or, described business executing rule is performed to the data service detected.
Wherein, formulate unit 1002 in the initiation process of IP-CAN session establishment or IP-CAN session modification, formulate PCC rule according to the CAMEL-Subscription-Information of user;
Accordingly, when determining unit 1003 is determined to carry out the control of more than four layers strategies and charging to the business data flow with described IP-CAN session further, business data flow with described PCC rule match is transmitted to described TDEF by described PCEF, and, by not with any PCC rule match but described PCRF indicates the business data flow of control carrying out more than four layers strategies and charging to be transmitted to described TDEF.The process of above-mentioned IP-CAN session establishment by bearing binding and the resident gateway of event reporting function entity B BERF receive set up IP-CAN conversation request message after initiate; Initiate when the process of above-mentioned IP-CAN session modification provides the business information of IP-CAN by Application Function AF, or initiate after new business being detected by TDEF, or receive request QoS rule at BBERF or initiate after the event that PCRF subscribes to being detected, or it is regular or initiate after the event that PCRF subscribes to being detected to receive the new QoS of request at TDEF.
Figure 11 is the another kind composition structural representation of the system that the strategy that strengthens of the present invention and charging control, as shown in figure 11, on the basis of the system controlled at the strategy of the enhancing shown in Figure 10 and charging, the strategy that the present invention strengthens and the system that charging controls also comprise delete cells 1007, for in deletion IP-CAN conversation procedure, delete the PCC rule relevant to described IP-CAN session, and described business executing rule.
In the system that the strategy of enhancing of the present invention and charging control, formulate unit 1002 and formulate PCC rule, determining unit 1003 determines whether according to the subscription data of user the control business data flow with described PCC rule match being carried out to more than four layers strategies and charging.
Accordingly, when determining unit 1003 is determined to carry out the control of more than four layers strategies and charging to the business data flow with described PCC rule match, the business data flow with described PCC rule match is transmitted to described TDEF by described PCEF.
When subscription data upgrades, determining unit 1003 redefines the control whether business data flow with described IP-CAN session being carried out to more than four layers strategies and charging, redefines business executing rule, and send to TDEF by the second transmitting element 1005 when being.
Those skilled in the art are to be understood that, the system that the strategy of the enhancing shown in Figure 10 and Figure 11 and charging control is the method that controls of strategy for realizing aforesaid enhancing and charging and designs, in the system that the strategy of the enhancing shown in Figure 10 and Figure 11 and charging control, the function of each processing unit can refer to the description of method shown in Fig. 3 to Fig. 9 and understands, the function of each processing unit realizes by the program run on processor, also realizes by concrete logical circuit.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.

Claims (13)

1. the method that the strategy strengthened and charging control, the business that arranges in strategy and charging control PCC system detects n-back test entity TDEF; It is characterized in that, described method comprises:
After "Policy and Charging Rules Function entity PCRF determines that the business data flow connecting Access Network IP-CAN session to IP carries out the control of more than four layers strategies and charging, formulate business detected rule and/or business executing rule and send to described TDEF;
Strategy and control n-back test entity PCEF and receive after described PCRF carries out to described business data flow the instruction that more than four layers strategies and charging control, sends to TDEF according to described instruction by the business data flow detected;
Described TDEF performs described business detected rule to described business data flow, and the business information of the business data flow detected is reported described PCRF, and/or, described business executing rule is performed to business data flow.
2. method according to claim 1, is characterized in that,
In the initiation process of IP-CAN session establishment or IP-CAN session modification, described PCRF formulates PCC rule according to the CAMEL-Subscription-Information of user;
Described method also comprises:
Described PCEF by with described PCC rule match and described PCRF indicate and carry out more than four layers strategies and the business data flow that controls of charging is transmitted to described TDEF; And described PCEF is not by with any PCC rule match but described PCRF indicates the business data flow carrying out business detection to be transmitted to described TDEF.
3. method according to claim 2, is characterized in that, the process of described IP-CAN session establishment by bearing binding and the resident gateway of event reporting function entity B BERF receive set up IP-CAN conversation request message after initiate;
Initiate when the process of described IP-CAN session modification provides the business information of IP-CAN by Application Function AF, or initiate after new business being detected by TDEF, or receive request new service quality QoS rule at BBERF or initiate after the event that PCRF subscribes to being detected, or it is regular or initiate after the event that PCRF subscribes to being detected to receive the new QoS of request at TDEF.
4. method according to claim 2, is characterized in that, described method also comprises:
In deletion IP-CAN conversation procedure, described PCRF indicates described PCEF to delete the PCC rule relevant to described IP-CAN session, and indicates TDEF to delete the relevant business detected rule of described IP-CAN session and/or business executing rule.
5. method according to claim 2, is characterized in that, described method also comprises:
When subscription data upgrades, described PCRF redefines the control whether business data flow of described IP-CAN session being carried out to business detection and/or more than four layers strategies and charging, redefine business detected rule and/or business executing rule when being, and be updated in TDEF.
6. the method according to any one of claim 1 to 5, is characterized in that, arranges described TDEF, be specially in described PCC system:
Described TDEF is connected with described PCRF.
7. a PCC system, comprise user-subscribed database SPR, Application Function AF, strategy and charging regulation function entity PCRF, bearing binding and event reporting function entity B BERF, strategy and control n-back test entity PCEF and charge system, described SPR, described AF, described BBERF are connected with described PCRF respectively with described PCEF, and described PCEF is connected to described charge system; It is characterized in that, described PCC system also comprises business and detects n-back test entity TDEF, is connected with described PCRF; Wherein,
Described SPR, for storing the user policy, billing control and subscription information relevant to charging with policy control;
Described BBERF, for checking and the event report of bearing binding, up bearing binding;
Described AF, for when service surface carries out parameter negotiation, passes to PCRF by related service information;
Described PCRF, after determining that the business data flow connecting Access Network IP-CAN session to IP carries out the control of more than four layers strategies and charging, formulates business detected rule and/or business executing rule and sends to described TDEF;
Described PCEF, for receive described PCRF to described business data flow carry out more than four layers strategy and charging control instruction after, according to described instruction, the business data flow detected is sent to TDEF;
Described TDEF, for performing described business detected rule to described business data flow, reports described PCRF by the business information of the business data flow detected, and/or, described business executing rule is performed to business data flow.
8. PCC system according to claim 7, is characterized in that, is connected between described TDEF with described PCRF by Sx interface.
9. the system that the strategy strengthened and charging control, is characterized in that, comprises setting unit, formulates unit, determining unit, the first transmitting element, the second transmitting element and execution and return unit, wherein:
Setting unit, for arranging TDEF in PCC system;
Formulate unit, for formulating PCC rule, business detected rule and business executing rule;
Determining unit, for determining whether the control business data flow with IP-CAN session being carried out to business detection and/or more than four layers strategies and charging;
First transmitting element, for sending PCC rule and/or indicating whether to carry out business detection and/or more than four layers strategies and the control of charging to described business data flow to PCEF;
Second transmitting element, for sending to described TDEF by described business detected rule and/or business executing rule;
Performing and return unit, for performing described business detected rule to described business data flow, the business information detected being reported described PCRF, and/or, described business executing rule is performed to described business data flow.
10. system according to claim 9, is characterized in that, described formulation unit, in the initiation process of IP-CAN session establishment or IP-CAN session modification, formulates PCC rule according to the CAMEL-Subscription-Information of user;
Accordingly, when described determining unit is determined to carry out business detection to the business data flow of described IP-CAN session, described PCEF is not by with any PCC rule match but described PCRF indicates the business data flow carrying out business detection to be transmitted to described TDEF, and/or described determining unit is when determining further to carry out more than four layers strategies and the control of charging to the business data flow of described IP-CAN session, the business data flow with described PCC rule match is transmitted to described TDEF by described PCEF.
11. systems according to claim 10, is characterized in that, the process of described IP-CAN session establishment by bearing binding and the resident gateway of event reporting function entity B BERF receive set up IP-CAN conversation request message after initiate;
Initiate when the process of described IP-CAN session modification provides the business information of IP-CAN by Application Function AF, or initiate after new business being detected by TDEF, or receive request new service quality QoS rule at BBERF or initiate after the event that PCRF subscribes to being detected, or it is regular or initiate after the event that PCRF subscribes to being detected to receive the new QoS of request at TDEF.
12. systems according to claim 10, is characterized in that, described system also comprises:
Delete cells, in deletion IP-CAN conversation procedure, deletes the PCC relevant to described IP-CAN session regular, and described business detected rule and/or business executing rule.
13. systems according to claim 10, it is characterized in that, when described subscription data upgrades, described determining unit redefines the control whether business data flow of described IP-CAN session being carried out to business detection and/or more than four layers strategies and charging, redefine business detected rule and/or business executing rule when being, and send to TDEF by described second transmitting element.
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