CN101035001A

CN101035001A - Method and system for processing the strategy control and charging

Info

Publication number: CN101035001A
Application number: CN 200610066612
Authority: CN
Inventors: 肖家幸; 陈卫民; 胡华东; 段小琴; 刘继兴
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2006-03-10
Filing date: 2006-04-13
Publication date: 2007-09-12

Abstract

This invention provides a method and system to deal with strategy control and accounting. The method including: to set up functional entities in the strategy control and accounting system through which to deal with the adoption of the roaming function under the rules of attribution strategy billing functions or transmit news and non-roaming network under a strategy to their billing rules functional entities addressable and information transmitted. Through this invention improve the existing control and accounting framework strategy to increase the flexibility of the network architecture that it is functional network topology; In addition, strategy billing rules functional entities addressable function under roaming circumstance be achieved and enhance current applications entities and users trigger flow of business strategy in the process of the establishment of accounting rules in functional entities addressing.

Description

The method of a kind of deal with strategy control and charging and system thereof

Technical field

The present invention relates to moving communicating field, the method and the system thereof of particularly deal with strategy control and charging (PCC:PolicyControl and Charging) relate to method and the system thereof of a kind of PCC of processing specifically.

Background technology

Be that example describes the mode of handling PCC in the prior art with the 3GPP system below.At 3GPP (3rd Generation Partnership Project; 3rd Generation Partnership Project) do you why to introduce PCC in? in the Rel6 of 3GPP, provide based on local session strategy (SBLP:Session Based Local Policy) and based on stream charging (FBC:Flow BasedCharging) scheme.But these two schemes have certain plyability, are in particular in two aspects, are respectively that function repeats and interface repeats.From functional perspective, charging FBC based on stream can provide to a certain degree policy control functions equally, gate control function for example, so just cause a problem: a same function is used based on the policy control SBLP of local session with based on the charging FBC scheme that flows and can be realized, therefore can cause the unnecessary redundancy of system.From interface angle, among the policy control SBLP and charging FBC scheme based on local session based on stream, it is similar greatly that the information that interface transmitted also has, for example, application function (AF:Application Function) entity in two kinds of schemes all will be in scheme decision entity, promptly be respectively strategy decision function (PDF:Policy DecisionFunction) and provide the information relevant with business with charging rule functions (CRF:Charging Rule Function).In general, this complexity that repeats both to have increased system, the while has been reduced the efficient of system again.

From the angle of signaling, this strategy and the charge information branch mechanism that issues that comes also can be increased the time delay of some system operation greatly, thereby aggravate the deficiency of present network the real time business disposal ability.At 3G (3th Generation; The 3G (Third Generation) Moblie standard) in the evolution of network, the signaling time delay that how to reduce system has become needs one of key issue that solves, and has caused widely and has paid close attention to.

In addition, also there is bigger problem in the universality of Rel6 policy control and flow based charging.With the policy control SBLP scheme based on local session is example, and it is to design for conversation-based GPRS Packet Service specially.Yet in the evolvement network in future, class of business is ever-changing, and the access technology that the user can select also can be increasing.This variation has also proposed new demand to the policy control mechanism in the network naturally, need it can adapt to miscellaneous service environment (conversation class and non-conversation class) and various access environment, as general packet radio service (GPRS) and wireless local Access Network (WLAN:Wireless Local AccessNetwork) etc., promptly need its scheme can be independent of concrete business and access environment.

In order to improve the efficient of system, simplify the operation, reduce time delay, improve the universality of policy control and flow based charging mechanism simultaneously, the policy control and the control of chargeing need be merged, the mechanism after the fusion is exactly policy control and charging (PCC).

Policy control and the current framework of charging PCC are to merge a scheme that forms according to what R5 among the 3GPP defined based on the policy control SBLP framework of local session and the charging FBC framework based on stream of R6 definition.As shown in Figure 1, be configuration diagram based on the policy control SBLP scheme of local session; Be illustrated in figure 2 as configuration diagram based on the charging FBC scheme of stream; Be illustrated in figure 3 as fusion based on the policy control SBLP of local session with based on policy control and the charging PCC configuration diagram of the charging FBC of stream.

Original policy control mechanism is the flow ruuning situation in the monitor network effectively, the flow of the difference service (service) of being carried in packet data protocol (the PDP:Packet Data Protocol) context be can not distinguish, and different policy control and different service quality (QoS:Quality of Service) applied at different service in view of the above.Therefore, along with the appearance of multiple application, be necessary the policy control mode of the extensive style in the refinement existing network.Introducing based on the policy control SBLP of local session is exactly in order to address this problem.Be illustrated in figure 1 as configuration diagram based on the policy control SBLP of local session.Wherein,

Core mechanism based on the policy control SBLP of local session is exactly its binding mechanism, and this also is that it can realize the basic principle based on the policy control of service.

Binding mechanism associates the carrying of packet data protocol PDP Context with one or more IP streams, carry out based on the local policy of service so that support.Binding information is included in the packet data protocol PDP context activation or revises in the message and is passed in the Gateway GPRS Support Node (GGSN).The purpose of binding is to make GGSN can discern actually which stream (flow) effectively to belong to certain PDP Context, and knows and will use which kind of strategy to remove to control these streams.

Can obtain the address information of corresponding strategy decision function (PDF:Policy DecisionFunction) from binding information, like this, GGSN just knows whom this remove to want the policy information of packet data protocol PDP Context to.

The content of binding information comprises: the authorization token and the will of failing to be sold at auction.At session establishment phase, application function AF gives user terminal (UE:User Equipment) with authorization token; Subsequently, user terminal UE just can be placed on this token in packet data protocol PDP Context message or RSVP (the RSVP:Resource Reservation Protocol) message, form binding information with one of traffic identifier, give GGSN and in follow-up operating process, use.After strategy decision function PDF gives application function AF authorization token, will relevant SBLP local policy be stored based on the information on services of receiving from application function AF, for future use.As GGSN during to strategy decision function PDF application bearer authorization, PDF will carry out Authorized operation according to previously stored SBLP policy information.GGSN after strategy decision function PDF obtains policy information, apply it to the packet data protocol PDP Context carrying of process.Binding mechanism makes GGSN can discern and the relevant IP Media Stream of certain packet data protocol PDP Context carrying, and uses corresponding policy information in view of the above.

Authorization token is unique in the domain space of operator, and follows relevant internet engineer's task groups (IETF:Internet Engineering Task Force) standard.The legitimate domain name that has comprised a strategy decision function PDF in the authorization token, therefore, GGSN obtains just can knowing with which tactful decision function PDF behind the token and gets in touch, thereby obtains relevant resource authorization information.Flow label adds that token just can identify an IP Media Stream uniquely.The information on services that strategy decision function PDF may provide owing to application function AF and the policing rule of operator do not match and refuse the authorization requests of application function AF.

For billing mechanism, original billing mechanism is based on the packet data protocol PDP Context and charges, there is a defective in this charge mode: owing to tend to comprise a plurality of different medium compositions (service data flow) in a session, it can't realize each medium composition is independently chargeed, and can only carry out unified charging to the PDP Context of session.This charge mode is irrational, because from the angle of operator, different medium compositions take the situation difference of Internet resources, therefore, also just must implement different Freight Basis.Just be based on this point, needing to introduce charging FBC mechanism,, reaching the accurate control that user network is used by implementing more fine-grained charging way based on stream.Charging way based on stream can reduce restriction for PDP Context media bearer type.Be illustrated in figure 2 as configuration diagram based on the charging FBC scheme of stream.Wherein,

Depend on the enforcement of charging regulation, its basic principle that Here it is based on the realization of charging FBC of stream.

By formulating different charging regulations, just can realize based on the charging of flowing (flow) at homogeneous turbulence (flow) not; Charging regulation has certain priority attribute.A charging regulation at first comprises a traffic filtering device, in order to the object flow that filters out required charging (charging key (Charging key) separately or and service identification (service identifier) identify a stream together).After filtering out the charging object flow, just can on this object flow, implement the charging regulation formulated, carry out corresponding metrological operation.

In charging FBC system based on stream, charge execution function (TPF:Traffic PlaneFunction) is the actuating logic module of charging regulation, charging regulation just is mounted among the charge execution function TPF, the reporting of the differentiation that charge execution function TPF is responsible for flowing, metering and charging result.In the GPRS bearer network, TPF can realize in GGSN.

The required charging regulation of charge execution function TPF is provided by charging rule functions (CRF:Charging RuleFunction) logic module, and interface definition between the two is among Gx.Application function AF and charge execution function TPF can provide some information to charging rule functions CRF, select corresponding charging regulation (be stored in charging regulation database (service data flow based charging rules data repository) among) according to these information charging rule functions CRF, and carried out among by interface it being installed in charge execution function TPF based on business data flow.

As shown in Figure 3, policy control and the charging PCC configuration diagram for having merged SBLP and FBC.Following problem and solution thereof have mainly been studied in the introducing of policy control and charging PCC:

1) will merge under the new independent system based on the policy control SBLP function of local session and based on the charging FBC function that flows;

2) new policy control and the charging PCC system CAMEL-Subscription-Information that must be able to consider the user;

3) research of new binding mechanism makes the business on carrying and upper strata to be mapped.This function makes network can control the employed load-carrying properties of Business Stream.

With the same based on the charging FBC of stream, the basic object of operating in policy control and charging PCC is server data stream (SDF:Service Data Flow).Similarly, all operations are all passed through PCC rule (rule) (being charging regulation (Charging Rule)) and are expressed and be sent among the execution functional entity in the network in FBC in policy control and charging PCC.CAMEL-Subscription-Information, new binding mechanism and the combination of PCC rule, make policy control and charging PCC can be suitable for more generally applied environment, if any AF do not have an AF, GPRS and non-GPRS carrying etc., thus provide a more unitized operating platform for the enforcement of more new business.

As can be seen from Figure 3, main variation is that strategy decision function PDF among the SBLP and the charging rule functions CRF among the FBC are fused into a functional entity, be "Policy and Charging Rules Function (PCRF:Policyand Charging Rules Function), PDF and CRF are the functional entitys of Rulemaking; Charge execution function (TPF:Traffic Plane Function) among Policy Enforcement Point among the SBLP (PEP:Policy Enforcement Point) and the FBC is fused into strategy and charge execution function (PCEF:Policyand Charging Enforce Function), be gateway (GW:Gateway), PEP and TPF are the functional entitys of executing rule.In addition, original function before application function AF inherits promptly is provided for relevant business information of making a strategic decision.

In addition, Go and Gx interface are merged into Gx+, provide charging regulation and policy control rule to PEP/TPF respectively, the Gx interface will the support policy controlled function be referred to as the policy control (FBP) based on stream than being easier to upgrading.Two major functions of Gx are exactly: transmit PCC rule request and response message between PCEF and PCRF; Between PCEF and PCRF, transmit the event message of user's face.The interface Gq and the Rx of policy control and charging PCC session-oriented layer and application layer merge into Rx+, Gq is very similar on function with Rx interface, and session control layer is passed to policy control and charging PCC about the information of (IMS) session of IP-based IP multimedia subsystem, IMS and media parameter.

Introduce new solution and solve carrying and professional binding issue, be different from authorization token (token) mechanism that existing SBLP uses.Policy control based on stream will be used data flow template (TFT:TrafficFlow Template), and this data flow template TFT is included in the PDP Context, and TFT is by IP address and port numbers identification stream, and the method for its method and CRF/PDF identification IP stream is similar.

At last, in PCC, increased a user signing contract information database (SPR:SubscriptionProfile Repository) functional entity, mainly be the entity that is used for preserving the signatory strategy of real-time user, in PCC, better keep network and user's policy consistency.As shown in Figure 4, be the schematic diagram of the CAMEL-Subscription-Information database SPR functional entity that Adds User in the PCC framework, Sp interface wherein makes user signing contract information database SPR user-dependent CAMEL-Subscription-Information can be offered "Policy and Charging Rules Function PCRF.By the Sp interface between user signing contract information database SPR and PCRF, "Policy and Charging Rules Function PCRF just can ask and carrying policy-related (noun) CAMEL-Subscription-Information to user signing contract information database SPR as international mobile subscriber identity (IMSI:Internation Mobile Subscriber Identity) according to effective sign (ID:Identify) of user.If "Policy and Charging Rules Function PCRF has asked relevant CAMEL-Subscription-Information before this, so, when user signing contract information database SPR detected relevant CAMEL-Subscription-Information and changed, it will be notified to corresponding PCRF with these changes by the Sp interface.

The framework that deal with strategy control and a charging PCC under roaming condition have been arranged among the Rel7 of existing 3GPP standard, wherein, comprised the application function AF of two kinds of scenes such as service-user and PCEF all at the AF of visited network scene and service-user at the PCEF of home network and service-user in the visited network scene; As shown in Figure 5, in the prior art under roaming condition the configuration diagram of deal with strategy control and charging PCC.

In this structure chart, each functions entity is as described below:

Strategy and charge execution function PCEF are used for the detection of business data flow, and the execution of strategy is based on the billing function of stream; "Policy and Charging Rules Function PCRF, comprise visit policy charging rule function (V-PCRF:Visited PCRF) and ownership policy charging rule function (H-PCRF:Home PCRF), be used to handle the formulation of qos policy and charging policy, keep the tactful consistent of subscriber policy and network side, handle the function of roaming; User signing contract information database SPR has comprised user's signatory relevant information, directly offers the signatory relevant information of PCRF user of PCC, strengthens the real-time decision-making capability of PCRF; Application function AF provides some need carry out the application message function of IP carrying user face dynamic strategy resource control; Online Charging System (OCS:Online Charging System), it is pre paid functionality that user's online charging function is provided; Off-line accounting system (OFCS:Offline Charging System) provides the i.e. back payment function of user's offline charging function; Bill system (Billing System) to the postpaid service user, generates the function of ticket according to its charge information.

The functional entity in figure, interface therebetween is described below:

Rx interface is the interface between AF functional entity and PCRF functional entity, is transmitted in dynamic service information between AF and PCRF; The Gx interface is the interface between PCEF functional entity and PCRF functional entity, is transmitted between PCEF and PCRF based on the local QoS strategy with based on the business information of charging regulation; The Gy interface is the interface between PCEF functional entity and OCS, prepaid user's relevant information between transmission PCEF and OCS; The Gz interface is the interface between PCEF functional entity and OFCS, the relevant information of chargeing of the postpaid service user between transmission PCEF and OFCS; The Sp interface is the interface between PCRF functional entity and SPR functional entity, the signatory relevant information of transmission user.

Except above-mentioned interface, also have some other interfaces.Wherein, the concrete name of the interface between V-PCRF and the H-PCRF does not determine that yet still, the existence of this interface is necessary.Other is labeled as "? " interface whether exist, and concrete name is all determined yet.

By above functional entity and interface formed a kind of under roaming condition the framework of PCC solution.But the shortcoming of prior art is that the PCRF of visited network can directly visit the PCRF of home network, makes the topological structure of home network directly be exposed to outer net, can't realize topology hiding, increases potential safety hazard; In addition, under roaming scence, the present standard of addressing mechanism that addressing mechanism between V-PCRF and the H-PCRF and current AF addressing and users trigger flow of business are set up in the process is not determined yet yet.

Summary of the invention

In view of problems of the prior art, the object of the present invention is to provide the method and the system thereof of a kind of deal with strategy control and charging.

The invention provides the method for a kind of deal with strategy control and charging, wherein, in policy control and charge system, functional entity is set, handles roaming down to the addressing of ownership policy charging rule functional entity and forwards or non-roaming down to the addressing and the forwards of the policy charging rule functional entity of belonging network by this functional entity.

According to the present invention, described functional entity is arranged at home network, be connected with at least one ownership policy charging rule functional entity, the policy charging rule functional entity of described functional entity and visited network is mutual, handles addressing and the forwards of visit policy charging rule functional entity to the ownership policy charging rule functional entity by described functional entity.

The visit policy charging rule functional entity comprises step to the addressing and the forwards of ownership policy charging rule functional entity:

The visit policy charging rule functional entity is to the address information of the ownership policy charging rule functional entity of described functional entity inquiring user;

After obtaining this address information, described visit policy charging rule functional entity sends to the ownership policy charging rule functional entity with user message.

The visit policy charging rule functional entity comprises step to the address information of the ownership policy charging rule functional entity of described functional entity inquiring user:

The visit policy charging rule functional entity sends the address lookup request message to described functional entity;

After this functional entity is received the address lookup request message, the address information of inquiry ownership policy charging rule functional entity, and the result that will inquire about feeds back to the visit policy charging rule functional entity.

The visit policy charging rule functional entity comprises step to the addressing and the forwarding message of ownership policy charging rule functional entity:

The visit policy charging rule functional entity sends to described functional entity with user message;

The address information and the local storage of this functional entity inquiry ownership policy charging rule functional entity are transmitted to user message described ownership policy charging rule functional entity then;

After described ownership policing rule functional entity is received user message, send response message, this response message is forwarded to the visit policy charging rule functional entity by described functional entity.

The visit policy charging rule functional entity sends to described functional entity with user message, wherein, carries the address information of described visit policing rule functional entity in this user message;

The address information of this functional entity inquiry ownership policy charging rule functional entity is transmitted to described ownership policy charging rule functional entity with user message;

After described ownership policy charging rule functional entity is received user message, send response message, this response message is forwarded to visit policing rule functional entity by described functional entity; Perhaps directly be sent to visit policing rule functional entity, the address information of wherein carrying ownership policing rule functional entity in this response message;

After the visit policy charging rule functional entity was received described response message, the address information of store home policing rule functional entity directly sent to the ownership policy charging rule functional entity with strategy and charging information with the follow-up user of receiving.

Described functional entity is inquired about the address information that belongs to policy charging rule functional entity according to local policy or to the mode of user signing contract information data base querying.

Realized the interface between described functional entity and the ownership policy charging rule functional entity, to carry this functional entity and the relevant policy control and the charging information that belong between the policy charging rule functional entity.

Described functional entity and the interface of visit between the policy charging rule functional entity have been realized, to transmit the relevant policy control between two operators and the information of charging.

According to the present invention, a functional entity is set respectively in visited network and home network, wherein,

The functional entity of visited network is connected with the visit policy charging rule functional entity, the functional entity of home network is connected with at least one ownership policy charging rule functional entity, make that the functional entity of the functional entity of home network and visited network is mutual, handle addressing and the forwards of visit policy charging rule functional entity the ownership policy charging rule functional entity by described functional entity.

The visit policy charging rule functional entity is to the address information of the functional entity inquiry ownership policy charging rule functional entity of visited network;

The functional entity of visited network is to the address information of the functional entity inquiry ownership policy charging rule functional entity of home network;

After the visit policy charging rule functional entity obtains the address information of ownership policy charging rule functional entity, user message is sent to described ownership policy charging rule functional entity.

The functional entity of visited network comprises step to the address information of the functional entity inquiry ownership policy charging rule functional entity of home network:

The functional entity of visited network sends the address lookup request message to the functional entity of home network;

After the functional entity of home network is received this address lookup request message, the address information of inquiry ownership policy charging rule functional entity, and the result that will inquire about feeds back to the visit policy charging rule functional entity.

The visit policy charging rule functional entity is issued user message the functional entity of visited network;

The address information and local storage of the functional entity of the functional entity inquiry home network of visited network, and user message is transmitted to the functional entity of home network;

The address information of the ownership policy charging rule functional entity of the functional entity inquiring user of home network and local the storage, and user message is transmitted to the ownership policy charging rule functional entity;

After described ownership policing rule functional entity is received user message, send response message, this response message is forwarded to the visit policy charging rule functional entity by the functional entity of home network and visited network.

The visit policy charging rule functional entity is issued the functional entity of visited network with user message, wherein, carries the address information of described visit policing rule functional entity in this user message;

The functional entity of visited network is inquired about the address information of the functional entity of home network, and user message is transmitted to the functional entity of home network;

The address information of the ownership policy charging rule functional entity of the functional entity inquiring user of home network, and user message is transmitted to the ownership policy charging rule functional entity;

After described ownership policy charging rule functional entity is received user message, send response message, this response message is forwarded to visit policing rule functional entity by the functional entity of home network and visited network; Perhaps directly be sent to visit policing rule functional entity, the address information of wherein carrying ownership policing rule functional entity in this response message;

The functional entity of visited network is according to the local policy or the address information of inquiring about the functional entity of home network to the mode of user signing contract information data base querying.

The functional entity of home network and the interface between the ownership policy charging rule functional entity have been realized, to carry this functional entity and to belong to relevant policy control and charging information between the policy charging rule functional entity;

The functional entity of visited network and the interface between the visit policy charging rule functional entity have been realized, to carry this functional entity and the relevant policy control and the charging information of visiting between the policy charging rule functional entity.

Realized the interface between the functional entity of the functional entity of visited network and home network, to transmit the relevant policy control between two operators and the information of charging.

Application Function is connected with the functional entity of its belonging network, handles addressing and the forwards of Application Function to the ownership policy charging rule functional entity by this functional entity.

According to the present invention, described Application Function belongs to home network, and the described functional entity that is connected with this Application Function is connected with at least one ownership policy charging rule functional entity.

Application Function comprises step to the addressing and the forwards of ownership policy charging rule functional entity:

Application Function is to the address information of the ownership policy charging rule functional entity of functional entity inquiring user;

After described Application Function obtains this address information, user message is sent to described ownership policy charging rule functional entity.

Application Function sends to described functional entity with user message;

This functional entity is inquired about the address information and local storage of described ownership policy charging rule functional entity, and user message is transmitted to the ownership policy charging rule functional entity;

After described ownership policing rule functional entity is received user message, send response message, this response message is forwarded to Application Function by described functional entity.

Application Function sends to described functional entity with user message, wherein, carries the address information of described Application Function in this user message;

This functional entity is inquired about the address information of described ownership policy charging rule functional entity, and user message is transmitted to the ownership policy charging rule functional entity;

After described ownership policy charging rule functional entity is received user message, send response message, this response message is forwarded to Application Function by described functional entity; Perhaps directly be sent to Application Function, wherein carry the address information of ownership policing rule functional entity in this response message;

After Application Function was received described response message, the address information of store home policing rule functional entity directly sent to the ownership policy charging rule functional entity with strategy and charging information with the follow-up user of receiving.

According to the present invention, described Application Function belongs to the 3rd side's network of visited network or non-attribution, non-visited network; In home network one functional entity is set also, is connected with at least one ownership policy charging rule functional entity.

Application Function is to the address information of the ownership policy charging rule functional entity of the functional entity inquiring user of belonging network;

The functional entity of belonging network is to the address information of the ownership policy charging rule functional entity of the functional entity inquiring user of home network;

Application Function is transmitted to the ownership policy charging rule functional entity with user message after obtaining the address information of ownership policy charging rule functional entity.

Application Function mails to user message the functional entity of belonging network;

The address information and local storage of the functional entity of the functional entity inquiry home network of this belonging network, and user's related news are transmitted to the functional entity of home network;

After described ownership policing rule functional entity is received user message, send response message, this response message is forwarded to Application Function by the functional entity of home network and belonging network.

Application Function is issued the functional entity of belonging network with user message, wherein, carries the address information of described Application Function in this user message;

The functional entity of belonging network is inquired about the address information of the functional entity of home network, and user message is transmitted to the functional entity of home network;

After described ownership policy charging rule functional entity is received user message, send response message, this response message is forwarded to Application Function by the functional entity of home network and belonging network; Perhaps directly be sent to Application Function, wherein carry the address information of ownership policing rule functional entity in this response message;

According to the present invention, under non-roaming, described functional entity is connected with gateway and at least one policy charging rule functional entity of belonging network, sets up in the process gateway to the addressing and the forwards of policy charging rule functional entity by this functional entity process user trigger flow of business.

Gateway comprises step to the addressing and the forwards of policy charging rule functional entity:

Gateway is to the address information of the policy charging rule functional entity of described functional entity inquiring user;

After obtaining this address information, described gateway sends to policy charging rule functional entity with user message.

Gateway sends to described functional entity with user message;

The address information of this functional entity query strategy charging regulation function entity and local storage are transmitted to user message described policy charging rule functional entity then;

After described policing rule functional entity is received user message, send response message, this response message is forwarded to gateway by described functional entity.

Gateway sends to described functional entity with user message, wherein the address information of carrying gateway in this user message;

The address information of this functional entity query strategy charging regulation function entity is transmitted to user message described policy charging rule functional entity then;

After described policy charging rule functional entity is received user message, send response message, this response message is forwarded to gateway by described functional entity; Perhaps directly be sent to gateway, wherein the address information of carrying the policing rule functional entity in this response message;

After gateway was received described response message, the address information of store home policing rule functional entity directly sent to policy charging rule functional entity with strategy and charging information with the follow-up user of receiving.

Realize the interface between described gateway and the functional entity, with relevant policy control and the charging information between bearing function entity and the gateway.

According to the present invention, under roaming, one functional entity is set respectively in visited network and home network, wherein, the functional entity of visited network is connected with the visit gateway with the visit policy charging rule functional entity, the functional entity of home network is connected with the visit policy charging rule functional entity with the ownership policy charging rule functional entity, sets up by the functional entity process user trigger flow of business of described visited network and home network and visits addressing and the forwards of gateway to the ownership policy charging rule functional entity in the process.

The visit gateway comprises step to the addressing and the forwards of ownership policy charging rule functional entity:

Behind visit gateway reception roamer's the strategy and the request of chargeing, visit the address information of policy charging rule functional entity to the functional entity inquiry of visited network;

After inquiring described address information, the functional entity of visited network feeds back to described visit gateway with this address information;

Visit gateway transmission user's strategy and charging request message are to visiting policy charging rule functional entity;

The visit policy charging rule functional entity is made local decision-making to user's strategy and charging request message, allows the user to pass through;

Then, the visit policy charging rule functional entity is to ownership policy charging rule functional entity addressing and forwards.

After the visit gateway receives roamer's the strategy and the request of chargeing, the functional entity that user's strategy and charging request message is sent to visited network;

After the functional entity of visited network obtains the address information and local storage of visit policy charging rule functional entity, user's strategy and charging request message is sent to the visit policy charging rule functional entity;

The visit policy charging rule functional entity is to ownership policy charging rule functional entity addressing and forwards;

After the visit policy charging rule functional entity has been received strategy and charge response message, strategy and charge response message are issued the visit gateway by the functional entity of visited network.

After the functional entity of visited network obtains the address information of visit policy charging rule functional entity, user's strategy and charging request message is sent to the visit policy charging rule functional entity;

After the visit policy charging rule functional entity has been received strategy and charge response message, by the functional entity of visited network or directly strategy and charge response message are issued the visit gateway.

According to the present invention, under roaming, one functional entity is set respectively in visited network and home network, wherein, the functional entity of visited network is connected with the visit gateway with the visit policy charging rule functional entity, the functional entity of home network is connected with the functional entity of ownership policy charging rule functional entity and visited network, sets up by the functional entity process user trigger flow of business of described visited network and home network and visits addressing and the forwards of gateway to the ownership policy charging rule functional entity in the process.

The visit policy charging rule functional entity is to ownership policy charging rule functional entity addressing and transmit message.

The visit policy charging rule functional entity is to the ownership policy charging rule functional entity and transmit message;

After this, the visit policy charging rule functional entity is to ownership policy charging rule functional entity and forwarding message;

After the visit policy charging rule functional entity has been received strategy and charge response message, by the functional entity of visited network or directly strategy and charge response message are issued the visit gateway, wherein carry the address information of visit policing rule functional entity in this response message;

The visit gateway directly sends to the visit policy charging rule functional entity with the follow-up user's of receiving strategy and charging information.

The present invention also provides a kind of system of roaming down deal with strategy control and charging, the policy control and the charge system that comprise home network and visited network, wherein, one functional entity is set in the policy control of described home network and the charge system, be connected with the visit policy charging rule functional entity with ownership respectively, make that the functional entity of visit policy charging rule functional entity and home network is mutual.

Interface between described functional entity and the ownership policy charging rule functional entity is the PP interface;

Described functional entity and the interface of visit between the policy charging rule functional entity are the VH interface, and this interface is used to transmit the relevant policy control between two operators and the information of charging.

The policy control of described visited network and charge system also comprise a functional entity and gateway, the functional entity of this visited network is connected with the visit policy charging rule functional entity with the visit gateway, is used to handle addressing and forwards to the visit policy charging rule functional entity;

The functional entity of described visited network is the PP interface with the interface of visit policy charging rule functional entity, is used to carry the functional entity and the relevant policy control and the charging information of visiting between the policy charging rule functional entity of visited network;

Interface between the functional entity of described visit gateway and visited network is the Pg interface, is used to carry the relevant policy control between the functional entity of described visit gateway and visited network and is billed to message.

The present invention also provides a kind of system of roaming down deal with strategy control and charging, the policy control and the charge system that comprise home network and visited network, it is characterized in that, in the policy control of described home network and visited network and charge system, a functional entity is set respectively, be connected with the visit policy charging rule functional entity with ownership respectively, make that the functional entity of the functional entity of home network and visited network is mutual.

The functional entity of home network and the interface of ownership between the policy charging rule functional entity are the PP interface, are used to carry relevant policy control and charging information between the "Policy and Charging Rules Function entity of described functional entity and home network;

Interface between the functional entity of visited network and the visit policy charging rule functional entity is the PP interface, and this interface is used to carry described functional entity and the relevant policy control and the charging information of visiting between the policy charging rule functional entity;

Interface between the functional entity of home network and the functional entity of visited network is the VH interface, and this interface is used to transmit the relevant policy control between two operators and the information of charging.

The policy control of described visited network and charge system also comprise a gateway, and the functional entity of visited network is connected with the visit gateway with the visit policy charging rule functional entity, and the interface between the functional entity of described gateway and visited network is the Pg interface.

Beneficial effect of the present invention is, perfect PCC framework among the existing 3GPP, and the flexibility that has increased the network architecture is a functional network topology; In addition, can also realize that V-PCRF under the roaming condition is to the H-PCRF addressing function and strengthen current AF and users trigger flow of business is set up in the process addressing function to PCRF.

Description of drawings

Fig. 1 is the configuration diagram of conversation-based policy control SBLP;

Fig. 2 is the configuration diagram based on the charging FBC of stream;

Fig. 3 is for merging SBLP and the policy control of FBC and the configuration diagram of charging PCC;

Fig. 4 is the schematic diagram of the CAMEL-Subscription-Information database SPR functional entity that Adds User in the PCC framework;

Fig. 5 is a configuration diagram of roaming following deal with strategy control and charging PCC in the prior art;

Fig. 6 is the configuration diagram of deal with strategy control and charging PCC under the roaming of the embodiment of the invention one;

Fig. 7 is the flow chart of the V-PCRF of the embodiment of the invention one to H-PCRF addressing and forwards;

Fig. 8 is the flow chart of the V-PCRF of the embodiment of the invention one to H-PCRF addressing and forwards;

Fig. 9 is the flow chart of the V-PCRF of the embodiment of the invention one to H-PCRF addressing and forwards;

Figure 10 is the configuration diagram of deal with strategy control and charging PCC under the roaming of the embodiment of the invention two;

Figure 11 is the flow chart of the V-PCRF of the embodiment of the invention two to H-PCRF addressing and forwards;

Figure 12 is the flow chart of the V-PCRF of the embodiment of the invention two to H-PCRF addressing and forwards;

Figure 13 is the flow chart of the V-PCRF of the embodiment of the invention two to H-PCRF addressing and forwards;

Figure 14 is the structural representation of the Application Function of the embodiment of the invention three to the H-PCRF addressing;

Figure 15 is that the AF of home network of the embodiment of the invention three is to the flow chart of H-PCRF addressing and forwards;

Figure 16 is that the AF of home network of the embodiment of the invention three is to the flow chart of H-PCRF addressing and forwards;

Figure 17 is that the AF of home network of the embodiment of the invention three is to the flow chart of H-PCRF addressing and forwards;

Figure 18 is the flow chart of the AF of the visited network of the embodiment of the invention three and third party's network to H-PCRF addressing and forwards;

Figure 19 is the flow chart of the AF of the visited network of the embodiment of the invention three and third party's network to H-PCRF addressing and forwards;

Figure 20 is the flow chart of the AF of the visited network of the embodiment of the invention three and third party's network to H-PCRF addressing and forwards;

Figure 21 sets up process to PCRF addressing structure schematic diagram from users trigger flow of business down for non-roaming in the embodiment of the invention four;

Figure 22 sets up process to PCRF addressing flow chart from users trigger flow of business down for non-roaming in the embodiment of the invention four;

Figure 23 sets up process to PCRF addressing flow chart from users trigger flow of business down for non-roaming in the embodiment of the invention four;

Figure 24 sets up process to PCRF addressing flow chart from users trigger flow of business down for non-roaming in the embodiment of the invention four;

Figure 25 sets up process to H-PCRF addressing structure schematic diagram from users trigger flow of business down for roaming in the embodiment of the invention four;

Figure 26 sets up process to H-PCRF addressing flow chart from users trigger flow of business down for roaming in the embodiment of the invention four;

Figure 27 sets up process to H-PCRF addressing flow chart from users trigger flow of business down for roaming in the embodiment of the invention four;

Figure 28 sets up process to H-PCRF addressing flow chart from users trigger flow of business down for roaming in the embodiment of the invention four;

Figure 29 sets up process to H-PCRF addressing structure schematic diagram from users trigger flow of business down for roaming in the embodiment of the invention four;

Figure 30 sets up process to H-PCRF addressing flow chart from users trigger flow of business down for roaming in the embodiment of the invention four;

Figure 31 sets up process to H-PCRF addressing flow chart from users trigger flow of business down for roaming in the embodiment of the invention four;

Figure 32 sets up process to H-PCRF addressing flow chart from users trigger flow of business down for roaming in the embodiment of the invention four.

Embodiment

The present invention will be described in detail below in conjunction with accompanying drawing.

The present invention is the method and the system thereof of a kind of deal with strategy control and charging.Wherein, this method is: a functional entity is set in policy control and charge system, handles roaming down to belonging to the addressing and the forwards of policy charging rule functional entity by this functional entity; Perhaps handle addressing and forwards non-roaming time to the policy charging rule functional entity of belonging network.

The flexibility that has increased the network architecture by this method is a functional network topology, and plays the hidden function of network topology structure.In addition, strengthen current AF and users trigger flow of business and set up in the process addressing function PCRF.

Wherein, the title of described functional entity is unrestricted, and this functional entity is referred to as inquiry policy charging rule function (I-PCRF:Interrogating PCRF) entity in the present embodiment.

Embodiment one

As shown in Figure 6, be the configuration diagram of deal with strategy control under the roaming of the embodiment of the invention one and charging PCC.Inquiry policy charging rule function I-PCRF entity is arranged at home network, at least one policy charging rule function H-PCRF entity with home network, promptly belonging to policy charging rule function (H-PCRF1, H-PCRF2......, H-PCRFn) entity is connected, make the "Policy and Charging Rules Function entity of visited network, promptly visit policy charging rule function V-PCRF entity and I-PCRF entity interaction, handle addressing and the forwards of V-PCRF entity the H-PCRF entity.

As shown in Figure 6, realized the interface between I-PCRF entity and the H-PCRF entity in the present embodiment, the title of this interface is unrestricted.This interface is referred to as the PP interface in the present embodiment, is used to carry between following I-PCRF entity of roaming and the H-PCRF entity send the message that comprises PCC relevant informations such as strategy, charging, PCRF routing inquiry.

In addition, also realized the interface between I-PCRF entity and the V-PCRF entity, the title of this interface is unrestricted.This interface is referred to as the VH interface in the present embodiment, and this interface is the interface between the PCRF of two operators, is mainly used between two operators of transmission the message about PCC relevant informations such as quality of services for users strategy, charging, PCRF routing inquiries.

Above-mentioned I-PCRF entity handles V-PCRF entity is to the addressing and the forwards function of H-PCRF entity, broken down as follows: the routing inquiry function, i.e. address information and the local storage that obtains user's H-PCRF entity according to local policy or mode such as inquiry SPR etc. called in order to follow-up message for same user, perhaps follow-uply carries in replying message; The message buffering forwarding capability; Produce the charge information function.Wherein, it is optional producing the charge information function.

As shown in Figure 7, the V-PCRF entity adopts following steps to addressing of H-PCRF entity and forwards: the V-PCRF entity sends the address lookup request message to described I-PCRF entity and (sees step 1); After this I-PCRF entity was received the address lookup request message, the address information of inquiry H-PCRF entity fed back to V-PCRF entity (seeing step 2) by the address lookup response message with Query Result; After the V-PCRF entity obtains this address information, subscriber policy control and charging request message are sent to the H-PCRF entity (see step 3).The H-PCRF entity is received and is returned policy control for behind the request message V-PCRF entity and charge response message (is seen step 4).In the above-described embodiments, the I-PCRF entity is not transmitted message.

As shown in Figure 8, the V-PCRF entity is to addressing of H-PCRF entity and forwards, adopts following steps: the V-PCRF entity sends to the I-PCRF entity with roamer's policy control and charging request message and (sees step 1); The address information and the local storage of this I-PCRF entity inquiry H-PCRF entity are called in order to follow-up message for same user, then roamer's policy control and charging request message are transmitted to H-PCRF entity (seeing step 2,3).The H-PCRF entity returns policy control and charge response message (seeing step 4,5) for the V-PCRF entity after receiving request message.In addition, in giving the response message of V-PCRF entity, user's H-PCRF entity address message is transmitted to the V-PCRF entity by I-PCRF, flow process after this (is seen step 6,7,8,9) repeatedly according to this path.

In addition, as shown in Figure 9, the V-PCRF entity also can adopt following steps to the addressing and the forwarding message of H-PCRF entity:

The V-PCRF entity sends to the I-PCRF entity with user message (to be seen step 1), wherein, carries the address information of V-PCRF entity in this user message; The address information of I-PCRF entity inquiry H-PCRF entity is transmitted to H-PCRF entity (seeing step 2,3) with user message; After described H-PCRF entity is received user message, send response message, this response message is forwarded to V-PCRF entity (seeing step 4,5) by the I-PCRF entity; Perhaps directly be sent to V-PCRF entity (see step 4 ', 5 '), wherein the address information of carrying the H-PCRF entity in this response message; Then, the V-PCRF entity directly sends to the H-PCRF entity with the follow-up user's of receiving strategy and charging information (see step 6), described H-PCRF entity directly is sent to response message V-PCRF (seeing step 6,7).

In as Fig. 7, Fig. 8 and embodiment shown in Figure 9, the I-PCRF entity obtains the address information of H-PCRF entity according to the mode of local policy or inquiry SPR.But be not limited thereto dual mode, also can adopt alternate manner to obtain, repeat no more herein.

Embodiment two

As shown in figure 10, be the configuration diagram of deal with strategy control under the roaming of the embodiment of the invention two and charging PCC.Above-mentioned I-PCRF entity is arranged at home network and visited network respectively, and the I-PCRF entity of home network is connected with the H-PCRF entity, the I-PCRF entity of visited network is connected with the V-PCRF entity, thereby the I-PCRF of the I-PCRF of home network and visited network is mutual.

As shown in figure 10, realized the I-PCRF entity of home network and the interface between the H-PCRF entity in the present embodiment, the title of this interface is unrestricted.This interface is referred to as the PP interface in the present embodiment, is used to carry between following I-PCRF entity of roaming and the H-PCRF entity send the message that comprises PCC relevant informations such as strategy, charging, PCRF routing inquiry.

In addition, also realized the I-PCRF entity of visited network and the interface between the V-PCRF entity, the title of this interface is unrestricted.This interface is referred to as the PP interface in the present embodiment, is used to carry between following I-PCRF entity of roaming and the V-PCRF entity send the message that comprises PCC relevant informations such as strategy, charging, PCRF routing inquiry.

In addition, also realized the interface between the I-PCRF entity of the I-PCRF entity of visited network and home network, the title of this interface is unrestricted.This interface is referred to as the VH interface in the present embodiment, and this interface is the interface between the PCRF of two operators, is mainly used between two operators of transmission the message about PCC relevant informations such as quality of services for users strategy, charging, PCRF routing inquiries.

Above-mentioned I-PCRF entity handles V-PCRF entity is to the addressing and the forwards function of H-PCRF entity, broken down as follows: the routing inquiry function, promptly in visited network, the I-PCRF entity of visited network is finished the addressing of I-PCRF entity in the home network and forwards function, and the address information and the local storage that obtain the I-PCRF entity of user attaching network according to modes such as local policy or inquiry SPR are called in order to follow-up message for same user; In home network, the I-PCRF entity of home network is finished the addressing of H-PCRF entity and forwards function, obtains that the address information of user H-PCRF entity and local storage are called in order to follow-up message for same user or follow-uply carries in replying message according to local policy or mode such as inquiry SPR etc.; The message buffering forwarding capability; Produce the charge information function.Wherein, it is optional producing the charge information function.

As shown in figure 11, roaming V-PCRF entity is down adopted following steps to addressing of H-PCRF entity and forwards: the V-PCRF entity (is seen step 1) to the address lookup request message that the I-PCRF of visited network entity sends the address information of the H-PCRF entity of inquiring about the roamer; The I-PCRF entity of visited network sends this address lookup request message (seeing step 2) to the I-PCRF of home network entity; After the I-PCRF entity of home network is received this address lookup request message, the address information of inquiry H-PCRF entity, and feed back to the I-PCRF entity by the result that the address lookup response message will be inquired about, and then feed back to V-PCRF entity (seeing step 3,4); After the V-PCRF entity obtains the address of H-PCRF entity, roamer's policy control and charging request message are issued described H-PCRF entity (see step 5); Then, the H-PCRF entity returns policy control and charge response message to V-PCRF entity (is seen step 6).In the above-described embodiments, the I-PCRF entity is not transmitted message.

In addition, as shown in figure 12, the V-PCRF entity is to addressing of H-PCRF entity and forwards down in roaming, and adopt following steps: the I-PCRF entity that the V-PCRF entity is issued visited network with roamer's policy control and charging request message (is seen step 1); The address information and the local storage of the I-PCRF entity of the I-PCRF entity of visited network inquiry home network are called in order to follow-up message for same user, and the I-PCRF entity (seeing step 2,3) that roamer's policy control and charging request message is transmitted to home network; The address information of the H-PCRF entity of the I-PCRF entity inquiring user of home network and local storage are called in order to follow-up message for same user, and roamer's policy control and charging request message is transmitted to H-PCRF entity (seeing step 4,5); After the H-PCRF entity is received, policy control and charge response message are turned back to V-PCRF entity (seeing step 6,7,8).In addition, in giving the response message of V-PCRF entity, user's the H-PCRF entity address message I-PCRF entity by home network and visited network is forwarded to the V-PCRF entity, flow process afterwards (is seen step 9～14) repeatedly according to this path.

As shown in figure 13, the V-PCRF entity also can adopt following steps to the addressing and the forwards of H-PCRF entity:

The V-PCRF entity is issued the I-PCRF entity of visited network with user message, wherein, carries the address information of described V-PCRF entity in this user message and (sees step 1); The I-PCRF entity of visited network is inquired about the address information of the I-PCRF entity of home network, and user message is transmitted to the I-PCRF entity (seeing step 2,3) of home network; The address information of the H-PCRF entity of the I-PCRF entity inquiring user of home network, and user message is transmitted to H-PCRF entity (seeing step 4,5); After described H-PCRF entity is received user message, send response message, this response message is forwarded to V-PCRF entity (seeing step 6～8) by the I-PCRF entity of home network and visited network; Perhaps directly be sent to V-PCRF entity (step 6 '～8 '), wherein the address information of carrying the H-PCRF entity in this response message; The V-PCRF entity directly sends to the H-PCRF entity with the follow-up user's of receiving strategy and charging information, and the H-PCRF entity is sent to V-PCRF entity (seeing step 9,10) with response message.

The I-PCRF entity of home network described in the above-mentioned steps is according to local policy or to the address information of the H-PCRF entity of the mode inquiring user of SPR inquiry.

The I-PCRF entity of visited network is inquired about the address information of inquiring about the I-PCRF entity of home network in interior mode according to local policy or to SPR.

But above-mentioned inquiry mode is not limited to above-mentioned two kinds, also can adopt alternate manner, repeats no more herein.

Embodiment three

In the present embodiment, the application function AF entity among the PCC is connected with the I-PCRF entity of belonging network, and communicates by letter with the H-PCRF entity.

As shown in figure 14, be the AF entity of third embodiment of the invention structural representation to the H-PCRF addressing.Receive that at the AF entity business information and decision and relevant PCRF take place when mutual, the AF entity at first according to the I-PCRF address that disposes on it or obtain by other modes to the request of corresponding I-PCRF transmission H-PCRF address lookup; After I-PCRF receives this request message,, obtain the required H-PCRF information of AF by its local policy or further to modes such as SPR inquiries; Subsequently, I-PCRF returns to AF with the H-PCRF address information that obtains.After obtaining this information, AF can directly communicate by letter with the H-PCRF that is obtained, and also can continue to communicate by letter with this H-PCRF by I-PCRF.Said method all is suitable for for the AF of third party's network of home network, visited network and non-visit and home network.

Wherein, as shown in figure 15, when described application function AF entity belongs to home network, the message flow chart of communicating by letter with the H-PCRF entity.As shown in the figure, the AF entity is connected with the I-PCRF entity of home network, the I-PCRF entity of home network and ownership policy functional entity H-PCRF (H-PCRF1～H-PCRFn) be connected.

As shown in figure 15, the AF entity adopts following steps to the addressing and the forwards of H-PCRF entity: the AF entity sends the address lookup request message to the I-PCRF entity and (sees step 1); After described I-PCRF entity was received this address lookup request message, the address information of inquiry H-PCRF entity returned to described AF entity (seeing step 2) with this address information by the address lookup response message then; After described AF entity obtains this address information, subscription request message is directly sent to described H-PCRF entity (see step 3).In the above-described embodiments, the I-PCRF entity is not transmitted message.

In addition, as shown in figure 16, the AF entity adopts following steps to the addressing and the forwards of H-PCRF entity:

The AF entity sends to described I-PCRF entity with user message and (sees step 1); The address information and the local storage of this I-PCRF entity inquiry H-PCRF entity are called in order to follow-up message for same user, and user message is transmitted to H-PCRF entity (seeing step 2,3).After this, after the H-PCRF entity is received user message, send response message, this response message is forwarded to AF entity (seeing step 4,5) by the I-PCRF entity, and flow process after this (is seen step 6,7,8,9) repeatedly according to this path.

In addition, as shown in figure 17, the AF entity also can adopt following steps to the addressing and the forwards of H-PCRF entity:

The AF entity sends to described I-PCRF entity with user message, wherein, carries the address information of described AF entity in this user message and (sees step 1);

Described I-PCRF entity is inquired about the address information of H-PCRF entity, and user message is transmitted to H-PCRF entity (seeing step 2,3);

After described H-PCRF entity is received user message, send response message, this response message is forwarded to AF entity (seeing step 4,5) by the I-PCRF entity; Perhaps directly be sent to AF entity (see step 4 '～5 '), wherein the address information of carrying the H-PCRF entity in this response message;

The AF entity directly sends to the H-PCRF entity with the follow-up user's of receiving strategy and charging information, and the H-PCRF entity directly is sent to response message AF entity (seeing step 6,7).Wherein, described H-PCRF entity is according to the local policy or the address information of inquiring about the H-PCRF entity to the mode of SPR inquiry.But be not limited to above-mentioned two kinds of inquiry modes.

In addition, when above-mentioned application function AF entity belongs to visited network or third-party network, wherein AF be connected with the I-PCRF entity of belonging network, with the I-PCRF entity interaction of home network, handle addressing and the forwards of this AF entity to the H-PCRF entity.

As shown in figure 18, described AF entity adopts following steps to the addressing and the forwards of H-PCRF entity: the AF entity (is seen step 1) to the address lookup request message of the address information of the H-PCRF entity of the I-PCRF of belonging network entity transmission inquiring user; The I-PCRF entity of belonging network sends address lookup request message (seeing step 2) to the I-PCRF of home network entity; After the I-PCRF entity of home network is received this address lookup request message, the address information of inquiry H-PCRF entity, and the result that will inquire about feeds back to AF entity (seeing step 3,4) by the address lookup response message; After the AF entity obtains the address information of H-PCRF entity, subscriber policy control and charging request message are issued the H-PCRF entity (see step 5); The H-PCRF entity returns policy control and charge response message to AF entity (is seen step 6) then.In the above-described embodiments, the I-PCRF entity is not transmitted message.

As shown in figure 19, described AF entity adopts following step to the addressing and the forwards of H-PCRF entity: the AF entity (is seen step 1) with the I-PCRF entity that subscriber policy control and charging request message mail to belonging network; The address information and the local storage of the I-PCRF entity of the I-PCRF entity of this belonging network inquiry home network are called in order to follow-up message for same user, and subscriber policy control and charging request message are transmitted to the I-PCRF entity (seeing step 2,3) of home network; The address information of the H-PCRF entity of the I-PCRF entity inquiring user of home network and local storage are called in order to follow-up message for same user, and subscriber policy control and charging request message are transmitted to H-PCRF entity (seeing step 4,5); The H-PCRF entity returns policy control and charge response message and gives described AF entity (seeing step 6,7,8) then.After this H-PCRF entity sends response message, and the I-PCRF entity by home network and belonging network is forwarded to the AF entity, and flow process after this (is seen step 9～14) repeatedly according to this path.

As shown in figure 20, the AF entity also can adopt following step to the addressing and the forwards of H-PCRF entity:

The AF entity is issued the I-PCRF entity of belonging network with user message, wherein carries the address information of AF entity in this user message and (sees step 1); The I-PCRF entity of belonging network is inquired about the address information of the I-PCRF entity of home network, and user message is transmitted to the I-PCRF entity (seeing step 2,3) of home network;

The address information of the H-PCRF entity of the I-PCRF entity inquiring user of home network, and user message is transmitted to H-PCRF entity (seeing step 4,5); After described H-PCRF entity is received user message, send response message, this response message is forwarded to AF entity (seeing step 6,7,8) by the I-PCRF entity of home network and belonging network; Perhaps directly be sent to AF entity (see step 6 '～8 '), wherein the address information of carrying the H-PCRF entity in this response message; The AF entity directly sends to the H-PCRF entity with the follow-up user's of receiving strategy and charging information, the H-PCRF entity is sent to AF entity (seeing step 9,10) wherein with response message, and the I-PCRF entity of above-mentioned home network is inquired about the address information that belongs to the H-PCRF entity according to local policy or to the mode of SPR inquiry.But be not limited to above-mentioned dual mode.

The I-PCRF entity of belonging network is according to local policy or inquire about the H-PCRF entity address message of home network to the mode of SPR inquiry.

Embodiment four

In the present embodiment, provide a kind of and set up the process addressing and forwards PCRF from users trigger flow of business.

Receive that at gateway GW the user presets business or other business and sets up solicited message and decision and user-dependent PCRF and take place when mutual, GW is at first according to the PCRF address lookup request to corresponding I-PCRF transmission user correspondence of the Home Network I-PCRF functional entity address of configuration it on; After the I-PCRF functional entity is received this request message,,, obtain the corresponding PCRF address information of the required user of GW as by the configuration information on it or further to modes such as SPR inquiries by certain mode; Subsequently, I-PCRF returns to GW with the PCRF address information that obtains.After obtaining this information, GW can be directly communicates by letter with the PCRF of institute address acquisition, also can continue to communicate by letter with this PCRF by the I-PCRF functional entity.

As shown in figure 21, under non-roaming, set up the addressing structure schematic diagram of process to PCRF from users trigger flow of business.Wherein, (PCRF1～PCRFn) be connected is connected with the gateway GW of described network described I-PCRF entity with policy charging rule functional entity PCRF.

Interface between described I-PCRF entity and the PCRF1～PCRFn is the PP interface, is used to carry the message that comprises relevant informations such as strategy, charging, PCRF routing inquiry that sends between non-roaming I-PCRF entity down and the PCRF; And the interface between the GW is the PG interface, is used to carry the message that comprises relevant informations such as strategy, charging, PCRF routing inquiry that sends between non-roaming I-PCRF entity down and the GW (PCEF).

In addition, the interface between PCRF1～PCRFn entity and the GW still adopts the Gx interface in the existing protocol.

As shown in figure 22, GW adopts following steps to addressing of PCRF entity and forwards:

GW sends the address lookup request message to the I-PCRF of present networks entity and (sees step 1); After this I-PCRF entity was received the address lookup request message, the address information of inquiry H-PCRF entity fed back to GW (seeing step 2) by the address lookup response message with Query Result; After GW obtains this address information, subscriber policy control and charging request message are sent to the corresponding PCRF entity of user (see step 3).The PCRF entity is received and is returned policy control to GW behind this request message and charge response message (is seen step 4).In the above-described embodiments, the I-PCRF entity is not transmitted message.

As shown in figure 23, GW also can adopt following steps to addressing of PCRF entity and forwards:

GW (sees step 1) with the I-PCRF entity that subscriber policy control and charging request message send to present networks; The address information and the local storage of this I-PCRF entity inquiry PCRF entity are called in order to follow-up message for same user, then subscriber policy control and charging request message are transmitted to corresponding PCRF entity (seeing step 2,3); The PCRF entity receives behind the request message that by the control of I-PCRF entity forwarding strategy and charge response message to GW (seeing step 4,5), flow process after this (is seen step 6,7,8,9) repeatedly according to this path.

In addition, as shown in figure 24, GW also can adopt following steps to addressing of PCRF entity and forwards:

GW sends to the I-PCRF entity with user message, wherein carries the address information of GW in this user message and (sees step 1); The address information of I-PCRF entity inquiry PCRF entity is transmitted to user message PCRF entity (seeing step 2,3) then; After the PCRF entity is received user message, send response message, this response message is forwarded to GW (seeing step 4,5) by the I-PCRF entity; Perhaps directly be sent to GW (see step 4 '～5 '), wherein the address information of carrying the PCRF entity in this response message; GW directly sends to the PCRF entity with the follow-up user's of receiving strategy and charging information, and the PCRF entity is sent to GW (seeing step 6,7) with response message.

As shown in figure 25, set up the addressing structure schematic diagram of process for roaming down to H-PCRF from users trigger flow of business.Wherein, the I-PCRF entity is set respectively in visited network and home network, wherein,

The I-PCRF entity of visited network is connected with visit gateway (V-GW) with the V-PCRF entity, the I-PCRF entity of home network is connected with the H-PCRF entity, make the I-PCRF entity interaction of V-PCRF entity and home network, process user trigger flow of business set up in the process V-GW to the addressing and the forwards of H-PCRF entity.

Wherein, the I-PCRF entity in the visited network is mainly finished addressing and the forwards function of V-PCRF, and the I-PCRF entity in home network mainly is the function of finishing the addressing of ownership H-PCRF and transmitting message.Its function is broken down as follows: obtain in the visited network H-PCRF address information and the local storage of acquiescence V-PCRF and user according to local policy or mode such as inquiry SPR etc. and call in order to follow-up message for same user, be i.e. the routing inquiry function; The message buffering forwarding capability; Produce charge information function (optional).

Wherein, as shown in figure 26, V-GW adopts following steps to the addressing and the forwards of H-PCRF entity:

After V-GW received user's the strategy and the request of chargeing, to the PCRF of the I-PCRF of visited network entity inquiring user correspondence, after it was the roamer through judgement, just the address information with V-PCRF in the visited network of acquiescence fed back to V-GW (seeing step 1,2); V-GW sends to the V-PCRF entity with user's strategy and charging request message and (sees step 3); The V-PCRF entity is to addressing of H-PCRF entity and forwards, and this step such as embodiment one described method repeat no more herein and (see step 4).

After the V-PCRF entity was received policy control and charge response message, (see step 5), flow process after this (was seen step 6,7,8) repeatedly according to this path to V-GW for forwarding strategy control and charge response message.

As shown in figure 27, V-GW also can adopt following steps to the addressing and the forwards of H-PCRF entity:

After V-GW received user's the strategy and the request of chargeing, the I-PCRF entity that user's strategy and charging request message can be sent to visited network (was seen step 1); The PCRF entity of the I-PCRF entity inquiring user correspondence of visited network and this locality storage, after it was the roamer through judgement, just strategy and the charging request message with the user sent the V-PCRF entity of giving tacit consent to (seeing step 2,3); The V-PCRF entity is to addressing of H-PCRF entity and forwards, and this step such as embodiment one described method repeat no more herein and (see step 4).

The V-PCRF entity receives after policy control and the charge response message that by the I-PCRF entity forwarding strategy control of visited network and charge response message to V-GW (seeing step 5,6), flow process after this (is seen step 7,8,9,10,11) repeatedly according to this path.

In addition, as shown in figure 28, V-GW is to the addressing and the forwards of H-PCRF entity, also admissible following steps:

After V-GW received user's the strategy and the request of chargeing, the I-PCRF entity that user's strategy and charging request message can be sent to visited network (was seen step 1); The PCRF entity of the I-PCRF entity inquiring user correspondence of visited network, after it was the roamer through judgement, just strategy and the charging request message with the user sent the V-PCRF entity of giving tacit consent to (seeing step 2,3); The V-PCRF entity is to addressing of H-PCRF entity and forwards, and this step such as embodiment one described method repeat no more herein and (see step 4).

The V-PCRF entity is received behind the response message by the I-PCRF entity forwarding strategy control of visited network and charge response message to V-GW (seeing step 5,6); Perhaps directly send this response message to V-GW (see step 5 '～6 '), the wherein address information of carrying the V-PCRF entity in this response message; After this flow process (is seen step 7,8,9) repeatedly according to this path.

As shown in figure 29, set up the addressing structure schematic diagram of process for roaming down to H-PCRF from users trigger flow of business.The I-PCRF entity is set respectively in visited network and home network, wherein,

The I-PCRF entity of visited network is connected with V-GW with the V-PCRF entity, the I-PCRF entity of home network is connected with the H-PCRF entity, make the I-PCRF entity of visited network and the I-PCRF entity interaction of home network, process user trigger flow of business set up in the process V-GW to the addressing and the forwards of H-PCRF entity.

Wherein, the I-PCRF entity of visited network is mainly finished the addressing and the forwards function of the I-PCRF entity of V-PCRF and home network; The I-PCRF entity of home network mainly is the function of finishing the addressing of H-PCRF entity and transmitting message.Its function is broken down as follows: obtain in the visited network H-PCRF address information and the local storage of acquiescence V-PCRF and user according to local policy or mode such as inquiry SPR etc. and call in order to follow-up message for same user, be i.e. the routing inquiry function; The message buffering forwarding capability; Produce charge information function (optional).

As shown in figure 30, V-GW adopts following steps to the addressing and the forwards of H-PCRF entity:

After V-GW receives user's the strategy and the request of chargeing, the PCRF entity of the I-PCRF entity inquiring user correspondence of meeting in visited network, after it was the roamer through judgement, just the address information with V-PCRF entity in the visited network of acquiescence fed back to V-GW (seeing step 1,2); V-GW sends to the V-PCRF entity with user's strategy and charging request message, and the V-PCRF entity is made local decision-making according to the strategy of this locality and charging regulation to user's strategy and the request of chargeing and (seen step 3); After allowing the user to pass through, the V-PCRF entity is to addressing of H-PCRF entity and forwards, and its addressing and message forwarding method can adopt embodiment two described methods, repeat no more herein and (see step 4);

The V-PCRF entity is received after policy control and the charge response message directly forwarding strategy control and charge response message, and (see step 5), flow process after this (is seen step 6,7,8) repeatedly according to this path to V-GW.

In addition, as shown in figure 31, V-GW is to the addressing and the forwards of H-PCRF entity, also admissible following steps:

After V-GW received user's the strategy and the request of chargeing, the I-PCRF that user's strategy and charging request message can be sent in the visited network (saw step 1);

The PCRF entity of the I-PCRF inquiring user correspondence in the visited network and local this PCRF address information of storage, after it is the roamer through judgement, just user's strategy and charging request message are sent and issued V-PCRF, V-PCRF makes local decision-making (seeing step 2,3) according to the strategy and the charging regulation of this locality to user's strategy and the request of chargeing;

After allowing the user to pass through, the V-PCRF entity is to addressing of H-PCRF entity and forwards, and its addressing and message forwarding method can adopt embodiment two described methods, repeat no more herein and (see step 4);

After the V-PCRF entity was received policy control and charge response message, I-PCRF entity forwarding strategy control by visited network and charge response message were to V-GW (seeing step 5,6), and flow process after this (is seen step 7,8,9,10,11) repeatedly according to this path.

Shown in figure 32, V-GW is to the addressing and the forwards of H-PCRF entity, also admissible following steps:

The PCRF entity of the I-PCRF inquiring user correspondence in the visited network, after it is the roamer through judgement, just user's strategy and charging request message are sent and issued V-PCRF, V-PCRF makes local decision-making (seeing step 2,3) according to the strategy and the charging regulation of this locality to user's strategy and the request of chargeing;

After the V-PCRF entity was received policy control and charge response message, I-PCRF entity forwarding strategy control by visited network and charge response message were to V-GW (seeing step 5,6); Perhaps directly be sent to V-GW (see step 5 '～6 '), wherein the address information of carrying the V-PCRF entity in this response message; After this flow process (is seen step 7,8,9) repeatedly according to this path.

In the above-described embodiments, except the new functional entity that proposes, inquire promptly outside the policy charging rule function I-PCRF entity that visit policy and charging control function V-PCRF wherein and ownership policy and charging control function H-PCRF only need to handle itself policy development and decision function; Other functional entity is handled original function and is got final product, and with identical in the prior art, repeats no more herein.

Said method is not limited to the PCC framework among the 3GPP, so long as adopted entity I-PCRF and interface, function with identical function all can adopt method of the present invention in the framework that the PCC in the other system is correlated with.

The foregoing description only is used to illustrate the present invention, but not is used to limit the present invention.

Claims

1. the method for deal with strategy control and charging, it is characterized in that, in policy control and charge system, functional entity is set, handles roaming down to the addressing of ownership policy charging rule functional entity and forwards or non-roaming down to the addressing and the forwards of the policy charging rule functional entity of belonging network by this functional entity.

2. the method for deal with strategy control according to claim 1 and charging, it is characterized in that, under roaming, described functional entity is arranged at home network, be connected with at least one ownership policy charging rule functional entity, the policy charging rule functional entity of described functional entity and visited network is mutual, handles addressing and the forwards of visit policy charging rule functional entity to the ownership policy charging rule functional entity by described functional entity.

3. the method for deal with strategy control according to claim 2 and charging is characterized in that, the visit policy charging rule functional entity comprises step to the addressing and the forwards of ownership policy charging rule functional entity:

4. the method for deal with strategy control according to claim 3 and charging is characterized in that, the visit policy charging rule functional entity comprises step to the address information of the ownership policy charging rule functional entity of described functional entity inquiring user:

5. the method for deal with strategy control according to claim 2 and charging is characterized in that, the visit policy charging rule functional entity comprises step to the addressing and the forwarding message of ownership policy charging rule functional entity:

6. the method for deal with strategy control according to claim 2 and charging is characterized in that, the visit policy charging rule functional entity comprises step to the addressing and the forwarding message of ownership policy charging rule functional entity:

7. according to the method for claim 4 or 5 or 6 described deal with strategy control and charging, it is characterized in that described functional entity is inquired about the address information that belongs to policy charging rule functional entity according to local policy or to the mode of user signing contract information data base querying.

8. the method for deal with strategy control according to claim 2 and charging, it is characterized in that, realized the interface between described functional entity and the ownership policy charging rule functional entity, to carry this functional entity and the relevant policy control and the charging information that belong between the policy charging rule functional entity.

9. the method for deal with strategy control according to claim 2 and charging, it is characterized in that, described functional entity and the interface of visit between the policy charging rule functional entity have been realized, to transmit the relevant policy control between two operators and the information of charging.

10. the method for deal with strategy control according to claim 1 and charging is characterized in that, a functional entity is set respectively in visited network and home network, wherein,

11. the method for deal with strategy control according to claim 10 and charging is characterized in that, the visit policy charging rule functional entity comprises step to the addressing and the forwards of ownership policy charging rule functional entity:

12. the method for deal with strategy control according to claim 11 and charging is characterized in that, the functional entity of visited network comprises step to the address information of the functional entity inquiry ownership policy charging rule functional entity of home network:

13. the method for deal with strategy control according to claim 10 and charging is characterized in that, the visit policy charging rule functional entity comprises step to the addressing and the forwards of ownership policy charging rule functional entity:

14. the method for deal with strategy control according to claim 10 and charging is characterized in that, the visit policy charging rule functional entity comprises step to the addressing and the forwards of ownership policy charging rule functional entity:

15. the method for deal with strategy control according to claim 13 and charging is characterized in that, the functional entity of visited network is according to the local policy or the address information of inquiring about the functional entity of home network to the mode of user signing contract information data base querying.

16. the method for deal with strategy control according to claim 10 and charging, it is characterized in that, the functional entity of home network and the interface between the ownership policy charging rule functional entity have been realized, to carry this functional entity and to belong to relevant policy control and charging information between the policy charging rule functional entity;

17. the method for deal with strategy control according to claim 10 and charging, it is characterized in that, realized the interface between the functional entity of the functional entity of visited network and home network, to transmit the relevant policy control between two operators and the information of charging.

18. the method for deal with strategy control according to claim 1 and charging, it is characterized in that, Application Function is connected with the functional entity of its belonging network, handles addressing and the forwards of Application Function to the ownership policy charging rule functional entity by this functional entity.

19. the method for deal with strategy control according to claim 18 and charging, it is characterized in that, described Application Function belongs to home network, and the described functional entity that is connected with this Application Function is connected with at least one ownership policy charging rule functional entity.

20. the method for deal with strategy control according to claim 19 and charging is characterized in that, Application Function comprises step to the addressing and the forwards of ownership policy charging rule functional entity:

21. the method for deal with strategy control according to claim 19 and charging is characterized in that, Application Function comprises step to the addressing and the forwards of ownership policy charging rule functional entity:

Application Function sends to described functional entity with user message;

22. the method for deal with strategy control according to claim 19 and charging is characterized in that, Application Function comprises step to the addressing and the forwards of ownership policy charging rule functional entity:

23. the method for deal with strategy control according to claim 18 and charging is characterized in that, described Application Function belongs to the 3rd side's network of visited network or non-attribution, non-visited network; In home network one functional entity is set also, is connected with at least one ownership policy charging rule functional entity.

24. the method for deal with strategy control according to claim 23 and charging is characterized in that, Application Function comprises step to the addressing and the forwards of ownership policy charging rule functional entity:

25. the method for deal with strategy control according to claim 23 and charging is characterized in that, Application Function comprises step to the addressing and the forwards of ownership policy charging rule functional entity:

26. the method for deal with strategy control according to claim 23 and charging is characterized in that, Application Function comprises step to the addressing and the forwards of ownership policy charging rule functional entity:

27. the method for deal with strategy control according to claim 1 and charging, it is characterized in that, under non-roaming, described functional entity is connected with gateway and at least one policy charging rule functional entity of belonging network, sets up in the process gateway to the addressing and the forwards of policy charging rule functional entity by this functional entity process user trigger flow of business.

28. the method for deal with strategy control according to claim 27 and charging is characterized in that, gateway comprises step to the addressing and the forwards of policy charging rule functional entity:

29. the method for deal with strategy control according to claim 27 and charging is characterized in that, gateway comprises step to the addressing and the forwards of policy charging rule functional entity:

Gateway sends to described functional entity with user message;

30. the method for deal with strategy control according to claim 27 and charging is characterized in that, gateway comprises step to the addressing and the forwards of policy charging rule functional entity:

31. the method for deal with strategy control according to claim 27 and charging is characterized in that, realizes the interface between described gateway and the functional entity, with relevant policy control and the charging information between bearing function entity and the gateway.

32. the method for deal with strategy control according to claim 1 and charging is characterized in that, under roaming, a functional entity is set respectively in visited network and home network, wherein,

The functional entity of visited network is connected with the visit gateway with the visit policy charging rule functional entity, the functional entity of home network is connected with the visit policy charging rule functional entity with the ownership policy charging rule functional entity, sets up by the functional entity process user trigger flow of business of described visited network and home network and visits addressing and the forwards of gateway to the ownership policy charging rule functional entity in the process.

33. the method for deal with strategy control according to claim 32 and charging is characterized in that, the visit gateway comprises step to the addressing and the forwards of ownership policy charging rule functional entity:

34. the method for deal with strategy control according to claim 32 and charging is characterized in that, the visit gateway comprises step to the addressing and the forwards of ownership policy charging rule functional entity:

35. the method for deal with strategy control according to claim 32 and charging is characterized in that, the visit gateway comprises step to the addressing and the forwards of ownership policy charging rule functional entity:

36. the method for deal with strategy control according to claim 1 and charging is characterized in that, under roaming, a functional entity is set respectively in visited network and home network, wherein,

The functional entity of visited network is connected with the visit gateway with the visit policy charging rule functional entity, the functional entity of home network is connected with the functional entity of ownership policy charging rule functional entity and visited network, sets up by the functional entity process user trigger flow of business of described visited network and home network and visits addressing and the forwards of gateway to the ownership policy charging rule functional entity in the process.

37. the method for deal with strategy control according to claim 36 and charging is characterized in that, the visit gateway comprises step to the addressing and the forwards of ownership policy charging rule functional entity:

38. the method for deal with strategy control according to claim 36 and charging is characterized in that, the visit gateway comprises step to the addressing and the forwards of ownership policy charging rule functional entity:

39. the method for deal with strategy control according to claim 36 and charging is characterized in that, the visit gateway comprises step to the addressing and the forwards of ownership policy charging rule functional entity:

40. the system of deal with strategy control and charging under the roaming, the policy control and the charge system that comprise home network and visited network, it is characterized in that, one functional entity is set in the policy control of described home network and the charge system, be connected with the visit policy charging rule functional entity with ownership respectively, make that the functional entity of visit policy charging rule functional entity and home network is mutual.

41. the system according to deal with strategy control and charging under the described roaming of claim 40 is characterized in that, the interface between described functional entity and the ownership policy charging rule functional entity is the PP interface;

42. system according to deal with strategy control and charging under the described roaming of claim 40, it is characterized in that, the policy control of described visited network and charge system also comprise a functional entity and gateway, the functional entity of this visited network is connected with the visit policy charging rule functional entity with the visit gateway, is used to handle addressing and forwards to the visit policy charging rule functional entity;

43. the system of deal with strategy control and charging under the roaming, the policy control and the charge system that comprise home network and visited network, it is characterized in that, in the policy control of described home network and visited network and charge system, a functional entity is set respectively, be connected with the visit policy charging rule functional entity with ownership respectively, make that the functional entity of the functional entity of home network and visited network is mutual.

44. system according to deal with strategy control and charging under the described roaming of claim 43, it is characterized in that, the functional entity of home network and the interface of ownership between the policy charging rule functional entity are the PP interface, are used to carry relevant policy control and charging information between the "Policy and Charging Rules Function entity of described functional entity and home network;

45. system according to deal with strategy control and charging under the described roaming of claim 44, it is characterized in that, the policy control of described visited network and charge system also comprise a gateway, the functional entity of visited network is connected with the visit gateway with the visit policy charging rule functional entity, and the interface between the functional entity of described gateway and visited network is the Pg interface.