CN101060703A

CN101060703A - User equipment switching policy and charging control method

Info

Publication number: CN101060703A
Application number: CNA2006100744750A
Authority: CN
Inventors: 刘继兴
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2006-04-21
Filing date: 2006-04-21
Publication date: 2007-10-24
Anticipated expiration: 2026-04-21
Also published as: CN101060703B

Abstract

The disclosed strategy and charge control method for UE switch comprises: AGW obtains the set entity address of source rule from source AGW and decides whether it can connect with this entity; if yes, connects the entity, and interacts with the entity and AF for strategy and charge control for UE; or else, connects the objective rule set entity for interaction on strategy and charge control. Besides, another method concerns is: objective AGW connects source AGW to execute the strategy and charge control for UE. This invention ensures the dialogue quality well.

Description

Strategy and billing control method when subscriber equipment switches

Technical field

The present invention relates to mobile communication technology, relate in particular to subscriber equipment (User Equipment, the strategy when UE) switching and charge control (Policy and Charging Control, PCC) method.

Background technology

Increasingly mature along with communication and the high development of information technology and IP Internet Protocol (IP) technology, the application of Internet (Internet) is popularized rapidly, people no longer are satisfied with single voice communication mode, and need brand-new multimedia communication mode.And simultaneously, mobile communications network is still the main path that people communicate by letter with fixed communication network, therefore, and the IPization of mobile communications network and fixed communication network, and the fusion of Internet and communication network just becomes the developing direction that industry is generally acknowledged undisputedly.That is to say, can support the IP multimedia communications system of multiple access technology to become the emphasis of Future Development.

IP Multimedia System (IP Multimedia Subsystem, IMS) be 3rd Generation Partnership Project (3rd Generation Partnership Project, a subsystem of finishing IP multimedia communication control of 3GPP) on the packet carrying network basis, introducing, it can be towards multiple access technology, according to personalized user data, the shielding user mode access, the degree of opening of control professional ability, provide the IP multimedia communication to experience, satisfied multimedia service in safety, charge, roaming and service quality (Quality of Service, the demand of each side such as QoS).

In the IMS conversation procedure, need carry out the qos policy control and the control of chargeing at the business that UE asked, to have on the message content much be similar or repetition because policy control and charge is controlled at, therefore, the two is merged not only can improve communication efficiency, can also reduce professional setup delay.At present, 3GPP, 3GPP2 etc. organize and to formulate based on the fusion of IMS policy control and the strategy of the control of chargeing and the control standard of chargeing.Wherein, strategy among the 3GPP2 and charging are controlled at carrying control (Service Based Bearer Control, SBBC) the middle regulation based on business.

Referring to shown in Figure 1, when UE is positioned at home network, the SBBC functional mode comprise application function (Application Function, AF), "Policy and Charging Rules Function (Policy and Charging RuleFunction, PCRF), and IAD (Access Gateway, AGW).Wherein, AF is used for providing dynamic service information according to the service request of UE; PCRF is used to generate strategy and charging regulation, comprise functional entity charging rule functions (the Charging Rule Function that formulates charging regulation, CRF) and generate strategy the rule functional entity strategy decision function (Policy Decision Function, PDF); AGW is used for implementation strategy and charging regulation, comprise functional entity charge execution function (the Traffic Plane Function that carries out charging regulation, TPF) and the functional entity policy enforcement function of implementation strategy rule (Policy Enforcement Function, PEF); Interface between AF and PCRF is the Tx interface, and the interface between PCRF and AGW is the Ty interface.

For the UE that is positioned at home network, its strategy and charging control procedure mainly comprise following step referring to Fig. 2:

Step 201:AGW sends authorization query to PCRF, and inquiry is at strategy and the charging regulation of this UE.

After step 202:PCRF receives authorization query, send the business information inquiry, the relevant information of inquiry UE institute requested service to AF.

Step 203:AF returns business information to PCRF after receiving the business information inquiry.

Step 204:PCRF generates strategy and charging regulation according to the business information received, and the promptly local strategy that is provided with of some control laws that is provided with of local operator, and the strategy that will formulate and charging regulation send to AGW, as authorization response.

Step 205:AGW controls UE implementation strategy and charging according to strategy of receiving and charging regulation.

Referring to shown in Figure 3, when UE roams into the visit net, SBBC roaming model comprises AF, ownership "Policy and Charging Rules Function (Home Policy and Charging Rule Function, H-PCRF), the visit "Policy and Charging Rules Function (Visited Policy and Charging Rule Function, V-PCRF), and AGW.Wherein, the interface between AF and H-PCRF is the Tx interface, between H-PCRF and V-PCRF, and V-PCRF and AGW between interface be the Ty interface.Here for ease of distinguishing, the PCRF in the home network is called H-PCRF, the PCRF in the visit net is called V-PCRF, in fact the H-PCRF among Fig. 2 just is equivalent to the PCRF among Fig. 1.

For the UE that is positioned at the visit net, its strategy and charging control procedure mainly comprise following step referring to Fig. 4:

Step 401:AGW sends authorization query to V-PCRF, in the inquiry visit net at strategy and the charging regulation of this UE.

Step 402:V-PCRF receive from the AGW authorization query after, H-PCRF in the home network that UE belonged to sends policy lookup, strategy and the charging regulation relevant with this UE in the inquiry home network.

After step 403:H-PCRF receives policy lookup, send the business information inquiry, the relevant information of inquiry UE institute requested service to AF.

Step 404:AF returns business information to H-PCRF after receiving the business information inquiry.

Step 405:H-PCRF is according to the business information of receiving, some strategies that reach the setting of local operator and the just local home network strategy that is provided with of charging control rule, formulate home network strategy and charging regulation, and home network strategy and the charging regulation of formulating sent to V-PCRF, respond as policy lookup.

Step 406:V-PCRF is according to home network strategy of receiving and charging regulation, some strategies that reach the setting of local operator and the just local visit net strategy that is provided with of charging control rule, formulate visit net strategy and charging regulation, and visit net strategy and the charging regulation that will formulate send to AGW, as authorization response.

Step 407:AGW controls UE implementation strategy and charging according to strategy of receiving and charging regulation.

In the process of carrying out the IMS session, the AGW that may cause UE to insert that moves of UE changes, and promptly UE switches to another AGW from an AGW.This paper is for ease of describing, and the AGW that UE before switching is inserted is called source AGW, and PCRF that source AGW is connected or V-PCRF are called source PCRF or source V-PCRF, and the H-PCRF that source V-PCRF connects is called source H-PCRF; The AGW that UE after switching is inserted is called purpose AGW, and PCRF that purpose AGW connected or V-PCRF are called purpose PCRF or purpose V-PCRF, and the H-PCRF that purpose V-PCRF connects is called purpose H-PCRF.

Because PCRF or V-PCRF that different AGW connects may be different, therefore, the proceeding of IMS session in order to guarantee to switch, purpose PCRF or purpose V-PCRF need reconnect other purpose PCC entity such as AF or H-PCRF.But, the be in no position to take possession of relevant information of other purpose PCC entity of purpose PCRF or purpose V-PCRF, therefore, purpose PCRF or purpose V-PCRF may obtain with corresponding target PCC entity such as AF or H-PCRF and be connected, that is to say, switch and easily cause the interruption of session, thereby influence quality of the conversation.

Summary of the invention

In view of this, strategy and billing control method when the object of the present invention is to provide a kind of UE to switch, the continuity of assurance session.

For achieving the above object, method provided by the invention may further comprise the steps:

A, purpose access gateway AG W obtain source rule from source AGW and formulate physical address, and judge whether to connect source rule and formulate entity, if can, execution in step B then, otherwise, execution in step C;

B, purpose AGW connect source rule formulation entity, and carry out strategy and charge control alternately by source rule formulation entity and application function AF, to the user equipment (UE) implementation strategy and the control of chargeing, and the processing of process ends;

C, purpose AGW connect purpose Rulemaking entity, carry out strategy and charge control alternately by purpose Rulemaking entity and AF, to the UE implementation strategy and the control of chargeing.

Wherein, the described purpose AGW of steps A obtains source rule from source AGW and formulates physical address and be: source AGW formulates physical address with source rule and sends to purpose AGW;

Perhaps be: purpose AGW sends request to source AGW, after source AGW receives request, source rule is formulated physical address send to purpose AGW.

First scheme:

Preferably, it is source policy and charging rule functions PCRF that described source rule is formulated entity, and described purpose Rulemaking entity is purpose PCRF;

Described step C is: purpose AGW connects purpose PCRF, and PCRF address, source sent to purpose PCRF, after purpose PCRF receives PCRF address, source, connect source PCRF, purpose AGW carries out strategy and charges control alternately by purpose PCRF, source PCRF and AF, to the UE implementation strategy and the control of chargeing.

Wherein, described purpose AGW carries out strategy and charges control alternately by purpose PCRF, source PCRF and AF, and UE implementation strategy and charging are controlled to be:

Purpose AGW sends authorization query by purpose PCRF to source PCRF; Source PCRF obtains business information from AF, and according to business information of obtaining and the local strategy that is provided with, generates strategy and charging regulation after receiving the authorization query that purpose PCRF transmits, and the strategy that will formulate and charging regulation send to purpose AGW by purpose PCRF; Purpose AGW controls UE implementation strategy and charging according to strategy and charging regulation that the purpose PCRF that receives transmits.

Perhaps, described purpose AGW carries out strategy and charges control alternately by purpose PCRF, source PCRF and AF, and UE implementation strategy and charging are controlled to be:

After purpose PCRF receives authorization query from purpose AGW, initiate the application message inquiry to AF by source PCRF; The business information that source PCRF returns AF is transmitted to purpose PCRF; Purpose PCRF generates strategy and charging regulation according to the business information received, and the local strategy that is provided with, and the strategy that will formulate and charging regulation send to purpose AGW; Purpose AGW controls UE implementation strategy and charging according to strategy of receiving and charging regulation.

Described step C is: purpose AGW connects purpose PCRF, and purpose PCRF is connected with AF, and purpose AGW directly carries out strategy and charges control alternately by purpose PCRF and AF, to the UE implementation strategy and the control of chargeing.

Wherein, described purpose PCRF and AF are connected to: purpose PCRF obtains the AF address from source PCRF, connects AF;

Described purpose PCRF obtains the AF address from source PCRF: purpose AGW sends to purpose PCRF with PCRF address, source, and purpose PCRF sends request to source PCRF, after source PCRF receives request, the AF address is sent to purpose PCRF;

Perhaps, described purpose PCRF obtains the AF address from source PCRF: purpose AGW sends to source AGW with purpose PCRF address, source AGW sends to source PCRF with the purpose PCRF address of receiving, after source PCRF receives purpose PCRF address, initiatively the AF address is sent to purpose PCRF.

Perhaps, described purpose PCRF and AF are connected to: AF obtains purpose PCRF address from source PCRF, connects purpose PCRF;

Described AF obtains purpose PCRF address from source PCRF: purpose AGW sends to source AGW with purpose PCRF address, and source AGW sends to source PCRF with the purpose PCRF address of receiving, after source PCRF receives purpose PCRF address, purpose PCRF address is sent to AF.

Alternative plan:

Preferably, it is source visit "Policy and Charging Rules Function V-PCRF that described source rule is formulated entity, and described purpose Rulemaking entity is purpose V-PCRF;

Described step C is: purpose AGW connects purpose V-PCRF, and V-PCRF address, source is sent to purpose V-PCRF; After purpose V-PCRF receives V-PCRF address, source, connect source V-PCRF; Purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, source V-PCRF, source ownership "Policy and Charging Rules Function H-PCRF and AF, to the UE implementation strategy and the control of chargeing.

Wherein, described purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, source V-PCRF, source H-PCRF and AF, and UE implementation strategy and charging are controlled to be:

Purpose AGW sends authorization query by purpose V-PCRF to source V-PCRF; After source V-PCRF receives the authorization query of purpose V-PCRF forwarding, initiate policy lookup to source H-PCRF; After source H-PCRF receives policy lookup, obtain business information, and, formulate home network strategy and charging regulation, and home network strategy and the charging regulation of formulating sent to source V-PCRF according to the business information of obtaining, and the local home network strategy that is provided with from AF; Source V-PCRF formulates visit net strategy and charging regulation according to the home network strategy received and charging regulation, and the local visit net strategy that is provided with, and the visit net strategy that will formulate and charging regulation send to purpose AGW by purpose V-PCRF; Purpose AGW controls UE implementation strategy and charging according to visit net strategy and charging regulation that the purpose V-PCRF that receives transmits.

Perhaps, described purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, source V-PCRF, source H-PCRF and AF, and UE implementation strategy and charging are controlled to be:

After purpose V-PCRF receives authorization query from purpose AGW, initiate policy lookup to source H-PCRF by source V-PCRF; After source H-PCRF receives policy lookup, obtain business information from AF, and, formulate home network strategy and charging regulation, and home network strategy and the charging regulation of formulating sent to purpose V-PCRF by source V-PCRF according to the business information of obtaining, and the local home network strategy that is provided with; Purpose V-PCRF transmits home network strategy and charging regulation, and the local visit net strategy that is provided with according to the source V-PCRF that receives, formulates visit net strategy and charging regulation, and the visit net strategy that will formulate and charging regulation send to purpose AGW; Purpose AGW controls UE implementation strategy and charging according to visit net strategy of receiving and charging regulation.

Described step C is: purpose AGW connects purpose V-PCRF; Purpose V-PCRF is connected with source H-PCRF; Purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, source H-PCRF and AF, to the UE implementation strategy and the control of chargeing.

Wherein, described purpose V-PCRF and source H-PCRF are connected to: purpose V-PCRF obtains H-PCRF address, source from source V-PCRF, connects source H-PCRF;

Described purpose V-PCRF obtains H-PCRF address, source from source V-PCRF: purpose AGW sends to purpose V-PCRF with V-PCRF address, source, purpose V-PCRF sends request to source V-PCRF, after source V-PCRF receives request, H-PCRF address, source is sent to purpose V-PCRF;

Perhaps, described purpose V-PCRF obtains H-PCRF address, source from source V-PCRF: purpose AGW sends to source AGW with purpose V-PCRF address, source AGW sends to source V-PCRF with the purpose V-PCRF address of receiving, after source V-PCRF receives purpose V-PCRF address, initiatively H-PCRF address, source is sent to purpose V-PCRF.

Perhaps, described purpose V-PCRF and source H-PCRF are connected to: source H-PCRF obtains purpose V-PCRF address from source V-PCRF, connects purpose V-PCRF;

Described source H-PCRF obtains purpose V-PCRF address from source V-PCRF: purpose AGW sends to source AGW with purpose V-PCRF address; Source AGW sends to source V-PCRF with the purpose V-PCRF address of receiving; After source V-PCRF receives purpose V-PCRF address, purpose V-PCRF address is sent to source H-PCRF.

Perhaps, described purpose V-PCRF and source H-PCRF are connected to: purpose V-PCRF obtains H-PCRF address, source according to UE sign or session identification from home network, connects source H-PCRF.

Described step C is: purpose AGW connects purpose V-PCRF, purpose V-PCRF connects source H-PCRF by purpose H-PCRF, purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, purpose H-PCRF, source H-PCRF and AF, to the UE implementation strategy and the control of chargeing.

Wherein, described purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, purpose H-PCRF, source H-PCRF and AF, and UE implementation strategy and charging are controlled to be:

After purpose V-PCRF receives authorization query from purpose AGW, initiate policy lookup to source H-PCRF by purpose H-PCRF; After source H-PCRF receives the policy lookup of purpose H-PCRF forwarding, obtain business information from AF, and according to the business information of obtaining, and the local home network strategy that is provided with, formulate home network strategy and charging regulation, and home network strategy and the charging regulation of formulating sent to purpose V-PCRF by purpose H-PCRF; Home network strategy that purpose V-PCRF transmits according to the purpose H-PCRF that receives and charging regulation, and the local visit net strategy that is provided with are formulated visit net strategy and charging regulation, and the visit net strategy that will formulate and charging regulation send to purpose AGW; Purpose AGW controls UE implementation strategy and charging according to visit net strategy of receiving and charging regulation

Perhaps, described purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, purpose H-PCRF, source H-PCRF and AF, and UE implementation strategy and charging are controlled to be:

After purpose V-PCRF receives authorization query from purpose AGW, initiate policy lookup to purpose H-PCRF; Purpose H-PCRF initiates the application message inquiry by source H-PCRF to AF; The business information that source H-PCRF returns AF is transmitted to purpose H-PCRF; The business information that purpose H-PCRF basis is received, the home network strategy that reaches local setting are formulated home network strategy and charging regulation, and the home network strategy and the charging regulation of formulation are sent to purpose V-PCRF; Purpose V-PCRF formulates visit net strategy and charging regulation according to the home network strategy received and charging regulation, and the local visit net strategy that is provided with, and the visit net strategy that will formulate and charging regulation send to purpose AGW; Purpose AGW controls UE implementation strategy and charging according to visit net strategy of receiving and charging regulation.

Described step C is: purpose AGW connects purpose V-PCRF, and purpose V-PCRF is by purpose H-PCRF connection AF, and purpose AGW carries out strategy by purpose V-PCRF, purpose H-PCRF and AF and charging control is mutual, and UE implementation strategy and charging are controlled.

Third party's case:

Preferably, it is source H-PCRF that described source rule is formulated entity, and described purpose Rulemaking entity is purpose V-PCRF;

Described step C is: purpose AGW connects purpose V-PCRF, and H-PCRF address, source is sent to purpose V-PCRF; After purpose V-PCRF receives H-PCRF address, source, connect source H-PCRF; Purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, source H-PCRF and AF, to the UE implementation strategy and the control of chargeing.

After purpose V-PCRF receives authorization query from purpose AGW, initiate policy lookup to source H-PCRF by purpose H-PCRF; After source H-PCRF receives the policy lookup of purpose H-PCRF forwarding, obtain business information from AF, and according to the business information of obtaining, and the local home network strategy that is provided with, formulate home network strategy and charging regulation, and home network strategy and the charging regulation of formulating sent to purpose V-PCRF by purpose H-PCRF; Home network strategy that purpose V-PCRF transmits according to the purpose H-PCRF that receives and charging regulation, and the local visit net strategy that is provided with are formulated visit net strategy and charging regulation, and the visit net strategy that will formulate and charging regulation send to purpose AGW; Purpose AGW controls UE implementation strategy and charging according to visit net strategy of receiving and charging regulation.

Cubic case:

Preferably, it is source H-PCRF that described source rule is formulated entity, and described purpose Rulemaking entity is purpose H-PCRF;

Described step C is: purpose AGW connects purpose H-PCRF, and H-PCRF address, source sent to purpose H-PCRF, after purpose H-PCRF receives H-PCRF address, source, connection source H-PCRF, purpose AGW carries out strategy and charges control alternately by purpose H-PCRF, source H-PCRF and AF, to the UE implementation strategy and the control of chargeing.

Wherein, described purpose AGW carries out strategy and charges control alternately by purpose H-PCRF, source H-PCRF and AF, and UE implementation strategy and charging are controlled to be:

Purpose AGW sends authorization query by purpose H-PCRF to source H-PCRF; After source H-PCRF receives the authorization query of purpose PCRF forwarding, obtain business information from AF, and according to the business information of obtaining, and the local home network strategy that is provided with, formulate home network strategy and charging regulation, and the strategy that will formulate and charging regulation send to purpose AGW by purpose H-PCRF; Purpose AGW controls UE implementation strategy and charging according to strategy and the charging regulation by purpose H-PCRF forwarding received.

Perhaps, described purpose AGW carries out strategy and charges control alternately by purpose H-PCRF, source H-PCRF and AF, and UE implementation strategy and charging are controlled to be:

After purpose H-PCRF receives authorization query from purpose AGW, send the application message inquiry to AF by source H-PCRF; The business information that source H-PCRF returns AF is transmitted to purpose H-PCRF; Purpose H-PCRF formulates home network strategy and charging regulation according to the business information received, and the local home network strategy that is provided with, and the strategy that will formulate and charging regulation send to purpose AGW; Purpose AGW controls UE implementation strategy and charging according to strategy of receiving and charging regulation.

Described step C is: purpose AGW connects purpose H-PCRF, and purpose H-PCRF is connected with AF, and purpose AGW directly carries out strategy and charges control alternately by purpose H-PCRF and AF, to the UE implementation strategy and the control of chargeing.

Wherein, described purpose H-PCRF and AF are connected to: purpose H-PCRF obtains the AF address from source H-PCRF, connects AF;

Described purpose H-PCRF obtains the AF address from source H-PCRF: purpose AGW sends to purpose H-PCRF with H-PCRF address, source, and purpose H-PCRF sends request to source H-PCRF, after source H-PCRF receives request, the AF address is sent to purpose H-PCRF;

Perhaps, described purpose H-PCRF obtains the AF address from source H-PCRF: purpose AGW sends to source AGW with purpose H-PCRF address, source AGW sends to source H-PCRF with the purpose H-PCRF address of receiving, after source H-PCRF receives purpose H-PCRF address, initiatively the AF address is sent to purpose H-PCRF.

Perhaps, described purpose H-PCRF and AF are connected to: AF obtains purpose H-PCRF address from source H-PCRF, connects purpose PCRF;

Described AF obtains purpose H-PCRF address from source H-PCRF: purpose AGW sends to source AGW with purpose H-PCRF address, source AGW sends to source H-PCRF with the purpose H-PCRF address of receiving, after source H-PCRF receives purpose H-PCRF address, purpose H-PCRF address is sent to AF.

Strategy and billing control method when the present invention also provides another subscriber equipment to switch, this method comprises: purpose AGW connects source AGW; Strategy and charging regulation that AGW formulates according to the Rulemaking entity are to the UE implementation strategy and the control of chargeing.

Wherein, when described AGW was source AGW, described step B was: strategy and charging regulation that source AGW formulates according to the Rulemaking entity, by purpose AGW UE implementation strategy and charging are controlled.

When described AGW was purpose AGW, described step B was: strategy and charging regulation that source AGW formulates the Rulemaking entity are transmitted to purpose AGW, and purpose AGW controls UE implementation strategy and charging according to strategy of receiving and charging regulation.

Wherein, described Rulemaking entity is PCRF or is V-PCRF.

This shows, purpose PCRF or purpose V-PCRF are by obtaining the information of some other purpose PCC entities such as AF or source H-PCRF among the present invention from source PCC entity such as source PCRF or source V-PCRF, purpose PCRF or purpose V-PCRF can obtain with corresponding target PCC entity and be connected when making switching, thereby guaranteed the continuity of session, and then guaranteed quality of the conversation.

Description of drawings

Fig. 1 is a SBBC functional mode schematic diagram of the prior art;

Fig. 2 is strategy and the charging control flow chart that is positioned at home network UE;

Fig. 3 is the SBBC functional mode schematic diagram in when roaming in the prior art;

Fig. 4 is strategy and the charging control flow chart that is positioned at visit net UE;

Fig. 5 is strategy and the charging control flow chart in the embodiment of the invention one;

Fig. 6 is strategy and the charging control flow chart in the embodiment of the invention two;

Fig. 7 is strategy and the charging control flow chart in the embodiment of the invention three;

Fig. 8 is strategy and the charging control flow chart in the embodiment of the invention four.

Embodiment

Basic thought of the present invention is: when UE switches between different AGW, purpose AGW obtains source rule from source AGW and formulates physical address, and formulate physical address according to the source rule that obtains and judge whether to connect source rule and formulate entity, if can, then purpose AGW connects source rule formulation entity, carry out strategy and charge control alternately by source rule formulation entity and AF, to the UE implementation strategy and the control of chargeing; Otherwise purpose AGW connects purpose Rulemaking entity, carries out strategy and charges control alternately by purpose Rulemaking entity and AF, to the UE implementation strategy and the control of chargeing.

Wherein, described Rulemaking entity can be PCRF or V-PCRF or H-PCRF.

For making purpose of the present invention, technical scheme and advantage clearer, the embodiment that develops simultaneously with reference to the accompanying drawings is described in further detail the present invention.

Embodiment one:

Referring to shown in Figure 5, when UE switched in home network, it was source PCRF that described source rule is formulated entity, and described purpose Rulemaking entity is purpose PCRF, and strategy in the present embodiment and charging control procedure mainly may further comprise the steps:

Step 501: purpose AGW obtains PCRF address, source from source AGW.

Wherein, source AGW can initiatively send to purpose AGW with PCRF address, source; Perhaps, send request to source AGW, after source AGW receives request, PCRF address, source is sent to purpose AGW by purpose AGW.

Step 502: purpose AGW connects source PCRF according to the PCRF address, source that obtains, and judges whether to connect source PCRF, if can, then execution in step 503, otherwise, execution in step 504.

Step 503: purpose AGW connects source PCRF, and carry out strategy and charge control alternately by source PCRF and AF, to the UE implementation strategy and the control of chargeing, and the processing of process ends.

Step 504: purpose AGW connects purpose PCRF, carries out strategy and charges control alternately by purpose PCRF and AF, to the UE implementation strategy and the control of chargeing.

Step 504 specifically can be: purpose AGW connects purpose PCRF, and PCRF address, source is sent to purpose PCRF; After purpose PCRF receives PCRF address, source, connect source PCRF; Purpose AGW carries out strategy and charges control alternately by purpose PCRF, source PCRF and AF, to the UE implementation strategy and the control of chargeing.

Purpose AGW sends authorization query by purpose PCRF to source PCRF; Source PCRF obtains business information from AF, and according to business information of obtaining and the local strategy that is provided with, generates strategy and charging regulation after receiving the authorization query that purpose PCRF transmits, and the strategy that will formulate and charging regulation send to purpose AGW by purpose PCRF; Purpose AGW controls UE implementation strategy and charging according to strategy and charging regulation that the purpose PCRF that receives transmits.That is to say that purpose PCRF is used to transmit the message between purpose AGW and the source PCRF as relaying, the formulation of strategy and charging regulation is still finished by source PCRF.

After purpose PCRF receives authorization query from purpose AGW, initiate the application message inquiry to AF by source PCRF; The business information that source PCRF returns AF is transmitted to purpose PCRF; Purpose PCRF generates strategy and charging regulation according to the business information received, and the local strategy that is provided with, and the strategy that will formulate and charging regulation send to purpose AGW; Purpose AGW controls UE implementation strategy and charging according to strategy of receiving and charging regulation.That is to say that source PCRF is used to transmit the message between purpose PCRF and the AF as relaying, the formulation of strategy and charging regulation is finished by purpose PCRF.

Perhaps step 504 is: purpose AGW connects purpose PCRF; Purpose PCRF is connected with AF; Purpose AGW directly carries out strategy and charges control alternately by purpose PCRF and AF, to the UE implementation strategy and the control of chargeing.

Perhaps be: AF obtains purpose PCRF address from source PCRF, connects purpose PCRF.

Wherein, described purpose PCRF obtains the AF address from source PCRF and is: purpose AGW sends to purpose PCRF with PCRF address, source, and purpose PCRF sends request to source PCRF, after source PCRF receives request, the AF address is sent to purpose PCRF;

Perhaps be: purpose AGW sends to source AGW with purpose PCRF address, and source AGW sends to source PCRF with the purpose PCRF address of receiving, after source PCRF receives purpose PCRF address, initiatively the AF address is sent to purpose PCRF.

Described AF obtains purpose PCRF address from source PCRF: purpose AGW sends to source AGW with purpose PCRF address; Source AGW sends to source PCRF with the purpose PCRF address of receiving; After source PCRF receives purpose PCRF address, purpose PCRF address is sent to AF.

In addition, purpose AGW can also obtain qos policy and the charging regulation that source PCRF formulates from source AGW, in order to using in strategy and charging control procedure.

Specific strategy after each connection is finished in the step 503,504 is consistent with Fig. 2 with charging control and treatment process, gives unnecessary details no longer one by one here.

Embodiment two:

Referring to shown in Figure 6, when UE switched in the visit net or between the visit net, it was source V-PCRF that described source rule is formulated entity, and described purpose Rulemaking entity is purpose V-PCRF, and strategy in the present embodiment and charging control procedure mainly may further comprise the steps:

Step 601: purpose AGW obtains V-PCRF address, source from source AGW.

Wherein, source AGW can initiatively send to purpose AGW with V-PCRF address, source; Perhaps, send request to source AGW, after source AGW receives request, V-PCRF address, source is sent to purpose AGW by purpose AGW.

Step 602: purpose AGW connects source V-PCRF according to the V-PCRF address, source that obtains, and judges whether to connect source V-PCRF, if can, then execution in step 603, otherwise, execution in step 604.

Step 603: purpose AGW connects source V-PCRF, and carry out strategy and charge control alternately by source V-PCRF and AF, to the UE implementation strategy and the control of chargeing, and the processing of process ends.

Step 604: purpose AGW connects purpose V-PCRF, carries out strategy and charges control alternately by purpose V-PCRF and AF, to the UE implementation strategy and the control of chargeing.

Step 604 specifically can be: purpose AGW connects purpose V-PCRF, and V-PCRF address, source is sent to purpose V-PCRF; After purpose V-PCRF receives V-PCRF address, source, connect source V-PCRF; Purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, source V-PCRF, source H-PCRF and AF, to the UE implementation strategy and the control of chargeing.

Purpose AGW sends authorization query by purpose V-PCRF to source V-PCRF; After source V-PCRF receives the authorization query of purpose V-PCRF forwarding, initiate policy lookup to source H-PCRF; After source H-PCRF receives policy lookup, obtain business information, and, formulate home network strategy and charging regulation, and home network strategy and the charging regulation of formulating sent to source V-PCRF according to the business information of obtaining, and the local home network strategy that is provided with from AF; Source V-PCRF formulates visit net strategy and charging regulation according to the home network strategy received and charging regulation, and the local visit net strategy that is provided with, and the visit net strategy that will formulate and charging regulation send to purpose AGW by purpose V-PCRF; Purpose AGW controls UE implementation strategy and charging according to visit net strategy and charging regulation that the purpose V-PCRF that receives transmits.That is to say that purpose V-PCRF is used to transmit the message between purpose AGW and the source V-PCRF as relaying, the formulation of strategy and charging regulation is still finished by source V-PCRF in the visit net.

After purpose V-PCRF receives authorization query from purpose AGW, initiate policy lookup to source H-PCRF by source V-PCRF; After source H-PCRF receives policy lookup, obtain business information from AF, and, formulate home network strategy and charging regulation, and home network strategy and the charging regulation of formulating sent to purpose V-PCRF by source V-PCRF according to the business information of obtaining, and the local home network strategy that is provided with; Purpose V-PCRF transmits home network strategy and charging regulation, and the local visit net strategy that is provided with according to the source V-PCRF that receives, formulates visit net strategy and charging regulation, and the visit net strategy that will formulate and charging regulation send to purpose AGW; Purpose AGW controls UE implementation strategy and charging according to visit net strategy of receiving and charging regulation.That is to say that source V-PCRF is used to transmit the message between purpose V-PCRF and source H-PCRF as relaying, the formulation of strategy and charging regulation is finished by purpose V-PCRF in the visit net.

If purpose V-PCRF can be connected with source H-PCRF, then step 604 can also connect purpose V-PCRF for: purpose AGW; Purpose V-PCRF is connected with source H-PCRF; Purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, source H-PCRF and AF, to the UE implementation strategy and the control of chargeing.

Perhaps be: purpose V-PCRF obtains H-PCRF address, source according to UE sign or session identification etc. from home network, connects source H-PCRF;

Perhaps be: source H-PCRF obtains purpose V-PCRF address from source V-PCRF, connects purpose V-PCRF.

Wherein, described purpose V-PCRF obtains H-PCRF address, source from source V-PCRF: purpose AGW sends to purpose V-PCRF with V-PCRF address, source, purpose V-PCRF sends request to source V-PCRF, after source V-PCRF receives request, H-PCRF address, source is sent to purpose V-PCRF;

Perhaps be: purpose AGW sends to source AGW with purpose V-PCRF address, and source AGW sends to source V-PCRF with the purpose V-PCRF address of receiving, after source V-PCRF receives purpose V-PCRF address, initiatively H-PCRF address, source is sent to purpose V-PCRF.

If purpose V-PCRF can not be connected with source H-PCRF, step 604 can connect purpose V-PCRF for: purpose AGW, purpose V-PCRF connects source H-PCRF by purpose H-PCRF, purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, purpose H-PCRF, source H-PCRF and AF, to the UE implementation strategy and the control of chargeing.

After purpose V-PCRF receives authorization query from purpose AGW, initiate policy lookup to source H-PCRF by purpose H-PCRF; After source H-PCRF receives the policy lookup of purpose H-PCRF forwarding, obtain business information from AF, and according to the business information of obtaining, and the local home network strategy that is provided with, formulate home network strategy and charging regulation, and home network strategy and the charging regulation of formulating sent to purpose V-PCRF by purpose H-PCRF; Home network strategy that purpose V-PCRF transmits according to the purpose H-PCRF that receives and charging regulation, and the local visit net strategy that is provided with are formulated visit net strategy and charging regulation, and the visit net strategy that will formulate and charging regulation send to purpose AGW; Purpose AGW controls UE implementation strategy and charging according to visit net strategy of receiving and charging regulation.That is to say that purpose H-PCRF is used to transmit the message between purpose V-PCRF and the source H-PCRF as relaying, the formulation of strategy and charging regulation is still finished by source H-PCRF in the home network.

After purpose V-PCRF receives authorization query from purpose AGW, initiate policy lookup to purpose H-PCRF; Purpose H-PCRF initiates the application message inquiry by source H-PCRF to AF; The business information that source H-PCRF returns AF is transmitted to purpose H-PCRF; The business information that purpose H-PCRF basis is received, the home network strategy that reaches local setting are formulated home network strategy and charging regulation, and the home network strategy and the charging regulation of formulation are sent to purpose V-PCRF; Purpose V-PCRF formulates visit net strategy and charging regulation according to the home network strategy received and charging regulation, and the local visit net strategy that is provided with, and the visit net strategy that will formulate and charging regulation send to purpose AGW; Purpose AGW controls UE implementation strategy and charging according to visit net strategy of receiving and charging regulation.That is to say that source H-PCRF is used to transmit the message between purpose H-PCRF and the AF as relaying, the formulation of strategy and charging regulation is finished by purpose H-PCRF in the home network.

If purpose V-PCRF can not be connected with source H-PCRF, step 604 or be: purpose AGW connects purpose V-PCRF, purpose V-PCRF connects AF by purpose H-PCRF, purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, purpose H-PCRF and AF, to the UE implementation strategy and the control of chargeing.Wherein, purpose H-PCRF can obtain the AF address from source H-PCRF, is connected with AF.

In addition, purpose AGW can also obtain qos policy and the charging regulation that source V-PCRF formulates from source AGW, in order to using in strategy and charging control procedure.

Specific strategy after each connection is finished in the step 603,604 is consistent with Fig. 4 with charging control and treatment process, gives unnecessary details no longer one by one here.

Embodiment three:

Referring to shown in Figure 7, when UE switches to when net visit from home network, it is source H-PCRF that described source rule is formulated entity, and described purpose Rulemaking entity is purpose V-PCRF, and strategy in the present embodiment and charging control procedure mainly may further comprise the steps:

Step 701: purpose AGW obtains H-PCRF address, source from source AGW.

Wherein, source AGW can initiatively send to purpose AGW with H-PCRF address, source; Perhaps, send request to source AGW, after source AGW receives request, H-PCRF address, source is sent to purpose AGW by purpose AGW.

Step 702: purpose AGW connects source H-PCRF according to the H-PCRF address, source that obtains, and judges whether to connect source H-PCRF, if can, then execution in step 703, otherwise, execution in step 704.

Step 703: purpose AGW connects source H-PCRF, and carry out strategy and charge control alternately by source H-PCRF and AF, to the UE implementation strategy and the control of chargeing, and the processing of process ends.

Step 704: purpose AGW connects purpose V-PCRF, carries out strategy and charges control alternately by purpose V-PCRF and AF, to the UE implementation strategy and the control of chargeing.

If purpose V-PCRF can be connected with source H-PCRF, step 704 can be: purpose AGW connects purpose V-PCRF, and H-PCRF address, source is sent to purpose V-PCRF; After purpose V-PCRF receives H-PCRF address, source, connect source H-PCRF; Purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, source H-PCRF and AF, to the UE implementation strategy and the control of chargeing.

If purpose V-PCRF can not be connected with source H-PCRF, step 704 can be: purpose AGW connects purpose V-PCRF, purpose V-PCRF connects source H-PCRF by purpose H-PCRF, purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, purpose H-PCRF, source H-PCRF and AF, to the UE implementation strategy and the control of chargeing.

If purpose V-PCRF can not be connected with source H-PCRF, step 704 or be: purpose AGW connects purpose V-PCRF, purpose V-PCRF connects AF by purpose H-PCRF, purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, purpose H-PCRF and AF, to the UE implementation strategy and the control of chargeing.Wherein, purpose H-PCRF can obtain the AF address from source H-PCRF, is connected with AF.

Embodiment four:

Referring to shown in Figure 8, when UE switched to home network from visiting net, it was source H-PCRF that described source rule is formulated entity, and described purpose Rulemaking entity is purpose H-PCRF, and strategy in the present embodiment and charging control procedure mainly may further comprise the steps:

Step 801: purpose AGW obtains H-PCRF address, source from source AGW.

Step 802: purpose AGW connects source H-PCRF according to the H-PCRF address, source that obtains, and judges whether to connect source H-PCRF, if can, then execution in step 803, otherwise, execution in step 804.

Step 803: purpose AGW connects source H-PCRF, and carry out strategy and charge control alternately by source H-PCRF and AF, to the UE implementation strategy and the control of chargeing, and the processing of process ends.

Step 804: purpose AGW connects purpose H-PCRF, carries out strategy and charges control alternately by purpose H-PCRF and AF, to the UE implementation strategy and the control of chargeing.

Step 804 specifically can be: purpose AGW connects purpose H-PCRF, and H-PCRF address, source is sent to purpose H-PCRF; After purpose H-PCRF receives H-PCRF address, source, connect source H-PCRF; Purpose AGW carries out strategy and charges control alternately by purpose H-PCRF, source H-PCRF and AF, to the UE implementation strategy and the control of chargeing.

Purpose AGW sends authorization query by purpose H-PCRF to source H-PCRF; After source H-PCRF receives the authorization query of purpose PCRF forwarding, obtain business information from AF, and according to the business information of obtaining, and the local home network strategy that is provided with, formulate home network strategy and charging regulation, and the strategy that will formulate and charging regulation send to purpose AGW by purpose H-PCRF; Purpose AGW controls UE implementation strategy and charging according to strategy and the charging regulation by purpose H-PCRF forwarding received.That is to say that purpose H-PCRF is used to transmit the message between purpose AGW and the source H-PCRF as relaying, the formulation of strategy and charging regulation is still finished by source H-PCRF in the home network.

After purpose H-PCRF receives authorization query from purpose AGW, send the application message inquiry to AF by source H-PCRF; The business information that source H-PCRF returns AF is transmitted to purpose H-PCRF; Purpose H-PCRF formulates home network strategy and charging regulation according to the business information received, and the local home network strategy that is provided with, and the strategy that will formulate and charging regulation send to purpose AGW; Purpose AGW controls UE implementation strategy and charging according to strategy of receiving and charging regulation.That is to say that source H-PCRF is used to transmit the message between purpose H-PCRF and the AF as relaying, the formulation of strategy and charging regulation is finished by purpose H-PCRF in the home network.

Perhaps step 804 is: purpose AGW connects purpose H-PCRF; Purpose H-PCRF is connected with AF; Purpose AGW directly carries out strategy and charges control alternately by purpose H-PCRF and AF, to the UE implementation strategy and the control of chargeing.

Perhaps be: AF obtains purpose H-PCRF address from source H-PCRF, connects purpose PCRF.

Wherein, described purpose H-PCRF obtains the AF address from source H-PCRF and is: purpose AGW sends to purpose H-PCRF with H-PCRF address, source, and purpose H-PCRF sends request to source H-PCRF, after source H-PCRF receives request, the AF address is sent to purpose H-PCRF;

Perhaps be: purpose AGW sends to source AGW with purpose H-PCRF address, and source AGW sends to source H-PCRF with the purpose H-PCRF address of receiving, after source H-PCRF receives purpose H-PCRF address, initiatively the AF address is sent to purpose H-PCRF.

Described AF obtains purpose H-PCRF address from source H-PCRF: purpose AGW sends to source AGW with purpose H-PCRF address; Source AGW sends to source H-PCRF with the purpose H-PCRF address of receiving; After source H-PCRF receives purpose H-PCRF address, purpose H-PCRF address is sent to AF.

In addition, can also realize that promptly purpose AGW connects source AGW to the strategy of UE and the control of chargeing by setting up the annexation of purpose AGW and source AGW; Strategy and charging regulation that AGW formulates according to the Rulemaking entity are to the UE implementation strategy and the control of chargeing.

Wherein, described AGW can be source AGW; Then this moment, described step B was: strategy and charging regulation that source AGW formulates according to the Rulemaking entity, by purpose AGW UE implementation strategy and charging are controlled.That is to say, purpose AGW as relaying, is used to transmit the message between source AGW and the UE, strategy and charging regulation that the Rulemaking entity is formulated are carried out by source AGW.

Perhaps, described AGW is purpose AGW; Then this moment, described step B was: strategy and charging regulation that source AGW formulates the Rulemaking entity are transmitted to purpose AGW, and strategy that purpose AGW basis is received and charging regulation are to the UE implementation strategy and the control of chargeing.That is to say, source AGW as relaying, is used to transmit the message between purpose AGW and the Rulemaking entity, strategy and charging regulation that the Rulemaking entity is formulated are carried out by purpose AGW.

Wherein, described Rulemaking entity can or be V-PCRF for PCRF.

As seen, method proposed by the invention can effectively reduce conversation, thereby guarantees quality of the conversation.

The above has carried out further detailed description to purpose of the present invention, technical scheme and beneficial effect; institute is understood that; the above is not in order to restriction the present invention; within the spirit and principles in the present invention all; any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

Strategy and billing control method when 1, a kind of subscriber equipment switches is characterized in that this method may further comprise the steps:

A, purpose access gateway AG W obtain source rule from source AGW and formulate physical address, and judge whether to connect source rule and formulate entity, if can, execution in step B then, otherwise, execution in step C;

B, purpose AGW connect source rule formulation entity, and carry out strategy and charge control alternately by source rule formulation entity and application function AF, to the user equipment (UE) implementation strategy and the control of chargeing, and the processing of process ends;

C, purpose AGW connect purpose Rulemaking entity, carry out strategy and charge control alternately by purpose Rulemaking entity and AF, to the UE implementation strategy and the control of chargeing.
2, method according to claim 1 is characterized in that, the described purpose AGW of steps A obtains source rule formulation physical address from source AGW and is: source AGW formulates physical address with source rule and sends to purpose AGW.
3, method according to claim 1, it is characterized in that, the described purpose AGW of steps A obtains source rule formulation physical address from source AGW: purpose AGW sends request to source AGW, after source AGW receives request, source rule is formulated physical address send to purpose AGW.
According to claim 1,2 or 3 described methods, it is characterized in that 4, it is source policy and charging rule functions PCRF that described source rule is formulated entity, described purpose Rulemaking entity is purpose PCRF;

Described step C is: purpose AGW connects purpose PCRF, and PCRF address, source sent to purpose PCRF, after purpose PCRF receives PCRF address, source, connect source PCRF, purpose AGW carries out strategy and charges control alternately by purpose PCRF, source PCRF and AF, to the UE implementation strategy and the control of chargeing.
According to claim 1,2 or 3 described methods, it is characterized in that 5, it is source policy and charging rule functions PCRF that described source rule is formulated entity, described purpose Rulemaking entity is purpose PCRF;

Described step C is: purpose AGW connects purpose PCRF, and purpose PCRF is connected with AF, and purpose AGW directly carries out strategy and charges control alternately by purpose PCRF and AF, to the UE implementation strategy and the control of chargeing.
6, method according to claim 4 is characterized in that, the described purpose AGW of step C carries out strategy and charges control alternately by purpose PCRF, source PCRF and AF, and UE implementation strategy and charging are controlled to be:

Purpose AGW sends authorization query by purpose PCRF to source PCRF; Source PCRF obtains business information from AF, and according to business information of obtaining and the local strategy that is provided with, generates strategy and charging regulation after receiving the authorization query that purpose PCRF transmits, and the strategy that will formulate and charging regulation send to purpose AGW by purpose PCRF; Purpose AGW controls UE implementation strategy and charging according to strategy and charging regulation that the purpose PCRF that receives transmits.
7, method according to claim 4 is characterized in that, the described purpose AGW of step C carries out strategy and charges control alternately by purpose PCRF, source PCRF and AF, and UE implementation strategy and charging are controlled to be:

After purpose PCRF receives authorization query from purpose AGW, initiate the application message inquiry to AF by source PCRF; The business information that source PCRF returns AF is transmitted to purpose PCRF; Purpose PCRF generates strategy and charging regulation according to the business information received, and the local strategy that is provided with, and the strategy that will formulate and charging regulation send to purpose AGW; Purpose AGW controls UE implementation strategy and charging according to strategy of receiving and charging regulation.
8, method according to claim 5 is characterized in that, described purpose PCRF and AF are connected to: purpose PCRF obtains the AF address from source PCRF, connects AF;

Described purpose PCRF obtains the AF address from source PCRF: purpose AGW sends to purpose PCRF with PCRF address, source, and purpose PCRF sends request to source PCRF, after source PCRF receives request, the AF address is sent to purpose PCRF.
9, method according to claim 5 is characterized in that, described purpose PCRF and AF are connected to: purpose PCRF obtains the AF address from source PCRF, connects AF;

Described purpose PCRF obtains the AF address from source PCRF: purpose AGW sends to source AGW with purpose PCRF address, and source AGW sends to source PCRF with the purpose PCRF address of receiving, after source PCRF receives purpose PCRF address, initiatively the AF address is sent to purpose PCRF.
10, method according to claim 5 is characterized in that, described purpose PCRF and AF are connected to: AF obtains purpose PCRF address from source PCRF, connects purpose PCRF;

Described AF obtains purpose PCRF address from source PCRF: purpose AGW sends to source AGW with purpose PCRF address, and source AGW sends to source PCRF with the purpose PCRF address of receiving, after source PCRF receives purpose PCRF address, purpose PCRF address is sent to AF.
According to claim 1,2 or 3 described methods, it is characterized in that 11, it is source visit "Policy and Charging Rules Function V-PCRF that described source rule is formulated entity, described purpose Rulemaking entity is purpose V-PCRF;

Described step C is: purpose AGW connects purpose V-PCRF, and V-PCRF address, source is sent to purpose V-PCRF; After purpose V-PCRF receives V-PCRF address, source, connect source V-PCRF; Purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, source V-PCRF, source ownership "Policy and Charging Rules Function H-PCRF and AF, to the UE implementation strategy and the control of chargeing.
According to claim 1,2 or 3 described methods, it is characterized in that 12, it is source visit "Policy and Charging Rules Function V-PCRF that described source rule is formulated entity, described purpose Rulemaking entity is purpose V-PCRF;

Described step C is: purpose AGW connects purpose V-PCRF; Purpose V-PCRF is connected with source H-PCRF; Purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, source H-PCRF and AF, to the UE implementation strategy and the control of chargeing.
According to claim 1,2 or 3 described methods, it is characterized in that 13, it is source visit "Policy and Charging Rules Function V-PCRF that described source rule is formulated entity, described purpose Rulemaking entity is purpose V-PCRF;

Described step C is: purpose AGW connects purpose V-PCRF, purpose V-PCRF connects source H-PCRF by purpose H-PCRF, purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, purpose H-PCRF, source H-PCRF and AF, to the UE implementation strategy and the control of chargeing.
According to claim 1,2 or 3 described methods, it is characterized in that 14, it is source visit "Policy and Charging Rules Function V-PCRF that described source rule is formulated entity, described purpose Rulemaking entity is purpose V-PCRF;

Described step C is: purpose AGW connects purpose V-PCRF, and purpose V-PCRF is by purpose H-PCRF connection AF, and purpose AGW carries out strategy by purpose V-PCRF, purpose H-PCRF and AF and charging control is mutual, and UE implementation strategy and charging are controlled.
15, method according to claim 11 is characterized in that, the described purpose AGW of step C carries out strategy and charges control alternately by purpose V-PCRF, source V-PCRF, source H-PCRF and AF, and UE implementation strategy and charging are controlled to be:

Purpose AGW sends authorization query by purpose V-PCRF to source V-PCRF; After source V-PCRF receives the authorization query of purpose V-PCRF forwarding, initiate policy lookup to source H-PCRF; After source H-PCRF receives policy lookup, obtain business information, and, formulate home network strategy and charging regulation, and home network strategy and the charging regulation of formulating sent to source V-PCRF according to the business information of obtaining, and the local home network strategy that is provided with from AF; Source V-PCRF formulates visit net strategy and charging regulation according to the home network strategy received and charging regulation, and the local visit net strategy that is provided with, and the visit net strategy that will formulate and charging regulation send to purpose AGW by purpose V-PCRF; Purpose AGW controls UE implementation strategy and charging according to visit net strategy and charging regulation that the purpose V-PCRF that receives transmits.
16, method according to claim 11 is characterized in that, the described purpose AGW of step C carries out strategy and charges control alternately by purpose V-PCRF, source V-PCRF, source H-PCRF and AF, and UE implementation strategy and charging are controlled to be:

After purpose V-PCRF receives authorization query from purpose AGW, initiate policy lookup to source H-PCRF by source V-PCRF; After source H-PCRF receives policy lookup, obtain business information from AF, and, formulate home network strategy and charging regulation, and home network strategy and the charging regulation of formulating sent to purpose V-PCRF by source V-PCRF according to the business information of obtaining, and the local home network strategy that is provided with; Purpose V-PCRF transmits home network strategy and charging regulation, and the local visit net strategy that is provided with according to the source V-PCRF that receives, formulates visit net strategy and charging regulation, and the visit net strategy that will formulate and charging regulation send to purpose AGW; Purpose AGW controls UE implementation strategy and charging according to visit net strategy of receiving and charging regulation.
17, method according to claim 12 is characterized in that, described purpose V-PCRF and source H-PCRF are connected to: purpose V-PCRF obtains H-PCRF address, source from source V-PCRF, connects source H-PCRF;

Described purpose V-PCRF obtains H-PCRF address, source from source V-PCRF: purpose AGW sends to purpose V-PCRF with V-PCRF address, source, purpose V-PCRF sends request to source V-PCRF, after source V-PCRF receives request, H-PCRF address, source is sent to purpose V-PCRF.
18, method according to claim 12 is characterized in that, described purpose V-PCRF and source H-PCRF are connected to: purpose V-PCRF obtains H-PCRF address, source from source V-PCRF, connects source H-PCRF;

Described purpose V-PCRF obtains H-PCRF address, source from source V-PCRF: purpose AGW sends to source AGW with purpose V-PCRF address, source AGW sends to source V-PCRF with the purpose V-PCRF address of receiving, after source V-PCRF receives purpose V-PCRF address, initiatively H-PCRF address, source is sent to purpose V-PCRF.
19, method according to claim 12 is characterized in that, described purpose V-PCRF and source H-PCRF are connected to: source H-PCRF obtains purpose V-PCRF address from source V-PCRF, connects purpose V-PCRF;

Described source H-PCRF obtains purpose V-PCRF address from source V-PCRF: purpose AGW sends to source AGW with purpose V-PCRF address; Source AGW sends to source V-PCRF with the purpose V-PCRF address of receiving; After source V-PCRF receives purpose V-PCRF address, purpose V-PCRF address is sent to source H-PCRF.
20, method according to claim 12 is characterized in that, described purpose V-PCRF and source H-PCRF are connected to: purpose V-PCRF obtains H-PCRF address, source according to UE sign or session identification from home network, connects source H-PCRF.
21, method according to claim 13 is characterized in that, described purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, purpose H-PCRF, source H-PCRF and AF, and UE implementation strategy and charging are controlled to be:

After purpose V-PCRF receives authorization query from purpose AGW, initiate policy lookup to source H-PCRF by purpose H-PCRF; After source H-PCRF receives the policy lookup of purpose H-PCRF forwarding, obtain business information from AF, and according to the business information of obtaining, and the local home network strategy that is provided with, formulate home network strategy and charging regulation, and home network strategy and the charging regulation of formulating sent to purpose V-PCRF by purpose H-PCRF; Home network strategy that purpose V-PCRF transmits according to the purpose H-PCRF that receives and charging regulation, and the local visit net strategy that is provided with are formulated visit net strategy and charging regulation, and the visit net strategy that will formulate and charging regulation send to purpose AGW; Purpose AGW controls UE implementation strategy and charging according to visit net strategy of receiving and charging regulation.
22, method according to claim 13 is characterized in that, described purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, purpose H-PCRF, source H-PCRF and AF, and UE implementation strategy and charging are controlled to be:

After purpose V-PCRF receives authorization query from purpose AGW, initiate policy lookup to purpose H-PCRF; Purpose H-PCRF initiates the application message inquiry by source H-PCRF to AF; The business information that source H-PCRF returns AF is transmitted to purpose H-PCRF; The business information that purpose H-PCRF basis is received, the home network strategy that reaches local setting are formulated home network strategy and charging regulation, and the home network strategy and the charging regulation of formulation are sent to purpose V-PCRF; Purpose V-PCRF formulates visit net strategy and charging regulation according to the home network strategy received and charging regulation, and the local visit net strategy that is provided with, and the visit net strategy that will formulate and charging regulation send to purpose AGW; Purpose AGW controls UE implementation strategy and charging according to visit net strategy of receiving and charging regulation.
According to claim 1,2 or 3 described methods, it is characterized in that 23, it is source H-PCRF that described source rule is formulated entity, described purpose Rulemaking entity is purpose V-PCRF;

Described step C is: purpose AGW connects purpose V-PCRF, and H-PCRF address, source is sent to purpose V-PCRF; After purpose V-PCRF receives H-PCRF address, source, connect source H-PCRF; Purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, source H-PCRF and AF, to the UE implementation strategy and the control of chargeing.
According to claim 1,2 or 3 described methods, it is characterized in that 24, it is source H-PCRF that described source rule is formulated entity, described purpose Rulemaking entity is purpose V-PCRF;

Described step C is: purpose AGW connects purpose V-PCRF, purpose V-PCRF connects source H-PCRF by purpose H-PCRF, purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, purpose H-PCRF, source H-PCRF and AF, to the UE implementation strategy and the control of chargeing.
According to claim 1,2 or 3 described methods, it is characterized in that 25, it is source H-PCRF that described source rule is formulated entity, described purpose Rulemaking entity is purpose V-PCRF;

Described step C is: purpose AGW connects purpose V-PCRF, and purpose V-PCRF is by purpose H-PCRF connection AF, and purpose AGW carries out strategy by purpose V-PCRF, purpose H-PCRF and AF and charging control is mutual, and UE implementation strategy and charging are controlled.
26, method according to claim 24 is characterized in that, described purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, purpose H-PCRF, source H-PCRF and AF, and UE implementation strategy and charging are controlled to be:

After purpose V-PCRF receives authorization query from purpose AGW, initiate policy lookup to source H-PCRF by purpose H-PCRF; After source H-PCRF receives the policy lookup of purpose H-PCRF forwarding, obtain business information from AF, and according to the business information of obtaining, and the local home network strategy that is provided with, formulate home network strategy and charging regulation, and home network strategy and the charging regulation of formulating sent to purpose V-PCRF by purpose H-PCRF; Home network strategy that purpose V-PCRF transmits according to the purpose H-PCRF that receives and charging regulation, and the local visit net strategy that is provided with are formulated visit net strategy and charging regulation, and the visit net strategy that will formulate and charging regulation send to purpose AGW; Purpose AGW controls UE implementation strategy and charging according to visit net strategy of receiving and charging regulation.
27, method according to claim 24 is characterized in that, described purpose AGW carries out strategy and charges control alternately by purpose V-PCRF, purpose H-PCRF, source H-PCRF and AF, and UE implementation strategy and charging are controlled to be:

After purpose V-PCRF receives authorization query from purpose AGW, initiate policy lookup to purpose H-PCRF; Purpose H-PCRF initiates the application message inquiry by source H-PCRF to AF; The business information that source H-PCRF returns AF is transmitted to purpose H-PCRF; The business information that purpose H-PCRF basis is received, the home network strategy that reaches local setting are formulated home network strategy and charging regulation, and the home network strategy and the charging regulation of formulation are sent to purpose V-PCRF; Purpose V-PCRF formulates visit net strategy and charging regulation according to the home network strategy received and charging regulation, and the local visit net strategy that is provided with, and the visit net strategy that will formulate and charging regulation send to purpose AGW; Purpose AGW controls UE implementation strategy and charging according to visit net strategy of receiving and charging regulation.
According to claim 1,2 or 3 described methods, it is characterized in that 28, it is source H-PCRF that described source rule is formulated entity, described purpose Rulemaking entity is purpose H-PCRF;

Described step C is: purpose AGW connects purpose H-PCRF, and H-PCRF address, source sent to purpose H-PCRF, after purpose H-PCRF receives H-PCRF address, source, connection source H-PCRF, purpose AGW carries out strategy and charges control alternately by purpose H-PCRF, source H-PCRF and AF, to the UE implementation strategy and the control of chargeing.
29, method according to claim 28 is characterized in that, described purpose AGW carries out strategy and charges control alternately by purpose H-PCRF, source H-PCRF and AF, and UE implementation strategy and charging are controlled to be:

Purpose AGW sends authorization query by purpose H-PCRF to source H-PCRF; After source H-PCRF receives the authorization query of purpose PCRF forwarding, obtain business information from AF, and according to the business information of obtaining, and the local home network strategy that is provided with, formulate home network strategy and charging regulation, and the strategy that will formulate and charging regulation send to purpose AGW by purpose H-PCRF; Purpose AGW controls UE implementation strategy and charging according to strategy and the charging regulation by purpose H-PCRF forwarding received.
30, method according to claim 28 is characterized in that, described purpose AGW carries out strategy and charges control alternately by purpose H-PCRF, source H-PCRF and AF, and UE implementation strategy and charging are controlled to be:

After purpose H-PCRF receives authorization query from purpose AGW, send the application message inquiry to AF by source H-PCRF; The business information that source H-PCRF returns AF is transmitted to purpose H-PCRF; Purpose H-PCRF formulates home network strategy and charging regulation according to the business information received, and the local home network strategy that is provided with, and the strategy that will formulate and charging regulation send to purpose AGW; Purpose AGW controls UE implementation strategy and charging according to strategy of receiving and charging regulation.
According to claim 1,2 or 3 described methods, it is characterized in that 31, it is source H-PCRF that described source rule is formulated entity, described purpose Rulemaking entity is purpose H-PCRF;

Described step C is: purpose AGW connects purpose H-PCRF, and purpose H-PCRF is connected with AF, and purpose AGW directly carries out strategy and charges control alternately by purpose H-PCRF and AF, to the UE implementation strategy and the control of chargeing.
32, method according to claim 31 is characterized in that, described purpose H-PCRF and AF are connected to: purpose H-PCRF obtains the AF address from source H-PCRF, connects AF;

Described purpose H-PCRF obtains the AF address from source H-PCRF: purpose AGW sends to purpose H-PCRF with H-PCRF address, source, and purpose H-PCRF sends request to source H-PCRF, after source H-PCRF receives request, the AF address is sent to purpose H-PCRF.
33, method according to claim 31 is characterized in that, described purpose H-PCRF and AF are connected to: purpose H-PCRF obtains the AF address from source H-PCRF, connects AF;

Described purpose H-PCRF obtains the AF address from source H-PCRF: purpose AGW sends to source AGW with purpose H-PCRF address, source AGW sends to source H-PCRF with the purpose H-PCRF address of receiving, after source H-PCRF receives purpose H-PCRF address, initiatively the AF address is sent to purpose H-PCRF.
34, method according to claim 31 is characterized in that, described purpose H-PCRF and AF are connected to: AF obtains purpose H-PCRF address from source H-PCRF, connects purpose PCRF;

Described AF obtains purpose H-PCRF address from source H-PCRF: purpose AGW sends to source AGW with purpose H-PCRF address, source AGW sends to source H-PCRF with the purpose H-PCRF address of receiving, after source H-PCRF receives purpose H-PCRF address, purpose H-PCRF address is sent to AF.
Strategy and billing control method when 35, a kind of subscriber equipment switches is characterized in that this method may further comprise the steps:

A, purpose AGW connect source AGW;

Strategy and charging regulation that B, AGW formulate according to the Rulemaking entity are to the UE implementation strategy and the control of chargeing.
36, method according to claim 35 is characterized in that, described AGW is source AGW;

Described step B is: strategy and charging regulation that source AGW formulates according to the Rulemaking entity, by purpose AGW UE implementation strategy and charging are controlled.
37, method according to claim 35 is characterized in that, described AGW is purpose AGW;

Described step B is: strategy and charging regulation that source AGW formulates the Rulemaking entity are transmitted to purpose AGW, and purpose AGW controls UE implementation strategy and charging according to strategy of receiving and charging regulation.
According to claim 35,36 or 37 described methods, it is characterized in that 38, described Rulemaking entity is PCRF or is V-PCRF.