CN101047988B - Strategy and charging control method at user roaming state - Google Patents

Strategy and charging control method at user roaming state Download PDF

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Publication number
CN101047988B
CN101047988B CN2006100835270A CN200610083527A CN101047988B CN 101047988 B CN101047988 B CN 101047988B CN 2006100835270 A CN2006100835270 A CN 2006100835270A CN 200610083527 A CN200610083527 A CN 200610083527A CN 101047988 B CN101047988 B CN 101047988B
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China
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pcrf
strategy
visited network
described
home network
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CN2006100835270A
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Chinese (zh)
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CN101047988A (en
Inventor
孙成振
胡华东
段小琴
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华为技术有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • H04L12/14Metering, charging or billing arrangements specially adapted for data wireline or wireless communications
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • H04L12/14Metering, charging or billing arrangements specially adapted for data wireline or wireless communications
    • H04L12/1403Architecture for metering, charging or billing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/10Network architectures or network communication protocols for network security for controlling access to network resources
    • H04L63/102Entity profiles
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/20Network architectures or network communication protocols for network security for managing network security; network security policies in general
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M15/00Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M15/00Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/66Policy and charging system
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M15/00Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/80Rating or billing plans; Tariff determination aspects
    • H04M15/8038Roaming or handoff
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24Accounting or billing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2215/00Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/20Technology dependant metering
    • H04M2215/204UMTS; GPRS
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2215/00Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/74Rating aspects, e.g. rating parameters or tariff determination apects
    • H04M2215/7442Roaming

Abstract

This invention discloses a strategy and billing control method in the state of users' roaming, including: UE requires PCEF for the visit network to establish the operational load, and PCEF requires PCRF of the visit network for strategy and billing control rules. PCRF of the visit network requires PCRF of the UE attaching network to execute the information of strategy and billing control, and PCRF sets strategy and billing control rules according to the returned information and sends to PCEF.

Description

Strategy under a kind of user roaming state and billing control method

Technical field

The present invention relates to wireless communication field, more particularly, relate to strategy and billing control method under a kind of user roaming state.

Background technology

In third generation partner program (3GPP), discuss based on the charging (FBC, Flow Based Charging) of Internet protocol (IP) stream for realization.For a Packet data service, the user is using the data volume that this business consumed to be called business data flow (Service DataFlow), and business data flow is the set that a plurality of IP streams are formed.And in a PDP Context (context), can carry a plurality of different business, and therefore be far smaller than charging based on PDP Context based on the granularity of the charging of IP stream, thus can for operator or service supplier provides the more charging means of horn of plenty.

Divide for the functional entity of realizing FBC according to present 3GPP, TPF carries IP traffic, when IP carrying is set up or during bearing modification (QoS is consulted again), TPF can send the charging regulation request to CRF by the Gx interface, can carry user's information relevant in the request (as Mobile Subscriber International ISDN number MSISDN with terminal, IMSI International Mobile Subscriber Identity IMSI), the relevant information of bearer properties (as QoS information etc.) and network is (as Mobile Network Code MNC, Mobile Country Code MCC MCC), the information of carrying in the charging regulation request message of CRF according to TPF, select a suitable charging regulation to return, comprise billing mechanism (adopting online charging or offline charging) in the charging regulation to TPF, charge type (also being based on the charging of flow based on duration), charging key (parameter relevant) with rate, business datum flow filter and this charging regulation priority.Wherein, be used to indicate TPF need filter out in the business datum filter and be applied to this charging regulation for which IP stream.Can comprise IP5 tuple information such as (source/purpose IP address, source/destination interface number, agreement ID) in the filter, as to be used for CRF indication TPF need be 10.0.0.1 for source address, destination address is 10.0.0.2, source/destination slogan is 20, agreement is that the IP traffic of TCP filters, and uses charging regulation to charge to the IP traffic that filters out.

CRF can provide Event trigger (trigger event) to TPF, in order to notice TPF when some incidents takes place, the charging regulation that need please look for novelty to CRF, the charging regulation that requires TPF when some bearing modification incident takes place, just please look for novelty as CRF to CRF.The TPF that can cause that defines in the standard asks the event trigger of charging regulation to comprise SGSN change (SGSN variation) again at present, QoS change (QoS variation), RAT type change (variation of RAT type) and TFT change (TFT variation).In addition, CRF is except the input information according to TPF decides the charging regulation of choosing, and CRF can also accept AF or the input information of OCS decides the charging regulation of choosing.Such as, what AF notice CRF active user used is any business, thus CRF chooses the charging regulation corresponding with this business.

OCS is made up of SCP (Service Control Point service control point) and two functional entitys of CCF (Credit Control Function credit control function) as Online Charging System, and the user credit when wherein CCF is to online charging manages.When the user used business, CCF carried out authentication to the credit in this user's the credit pool, and issued the operable credit of user to TPF.In addition, OCS can require TPF to report to OCS when some discrimination weight incidents (Re-authorisation triggers) take place, and this moment, OCS carried out discrimination weight according to the incident that TPF reports to the user, and may calculate again user's credit.When chargeing as the subregion, operator uses different charging rates for the user of different regions, OCS determines a rate according to user's present located position, and calculate user's credit according to this rate, when the user moves to another position, as the SGSN change events has taken place, TPF needs this event notice to OCS, OCS determines new rate according to the new residing position of user, and recomputates the new credit of user.And for example, when OCS uses professional QoS to determine rate according to the user, when the user has carried out the QoS modification, as the bearing modification incident has taken place, TPF needs this event notice to OCS.OCS determines new rate according to new QoS, and recomputates the new credit of user.These that define in the standard may cause that the incident of discrimination weight comprises that credit expired (credit authorisation lifetime expiry), user idle state overtime (idle timeout), the charging regulation of permission change (charging rule is changed) at present, in addition, some GPRS incidents such as SGSN change (SGSN change), QoS changes (QoS changes), RAT type change (RAT typechange) etc.

Corresponding to GPRS network, TPF is GGSN, and AF is a Service Gateway among the PDN, or service server, and CRF is newly-increased logic entity.The function of TPF is that charging regulation is carried out point, and CRF is the control point of charging regulation.For providing conversation-based policy control scheme (SBLP) among the Rel6 and based on the billing scheme (FBC) of SDF (Service Data Flow), these two schemes have certain function plyability (for example, FBC can provide policy control functions to a certain degree).So just cause a problem, a same function (for example gating function) uses SBLP and FBC to realize.Simultaneously, the information that reference point interface transmitted that two kinds of mechanism is used also have bigger repetition, and therefore, this complexity that repeats to increase system has reduced the efficient of system.From the another one aspect, this come mechanism that issues of strategy and charge information branch also can be increased the time delay of system operation (for example carrying foundation).

In order to improve the efficient of system, simplify the operation, reduce time delay, need to consider the policy control and the control of chargeing are merged, this fusion simultaneously also is possible, the mechanism after the fusion is exactly PCC.

In the PCC of new Rel7, these two function schemes will fully merge in the new function structure.This real time interactive operation system that optimization better is provided in GGSN (and GW of other Access Network) that is beneficial to that is associated with.The same with FBC, the basic object of operating in PCC is SDF.Similarly, all operations are all passed through PCC rule (being charging rule) and are expressed and be sent among the execution functional entity in the network in FBC in PCC.CAMEL-Subscription-Information, new binding mechanism and the combination of PCC rule make PCC can be suitable for more generally applied environment (have AF do not have AF, GPRS and non-GPRS carrying or the like).PCC provides a more unitized operating platform for the enforcement of how new application.

In order to guarantee the competitiveness of 3GPP system in the following time, the work of an access technology evolution is just carried out at the 3GPP organization internal.Particularly, in the 3GPP system, use group technology to need further to strengthen in order to strengthen the 3GPP system handles ability of the IP data service of growth fast.Most important several sections comprises in this class technology evolution: reduce time delay, Gao Su user data rate more, the reduction of the power system capacity of enhancing and coverage and operator's integral body cost.The core net of wireless evolution network mainly comprises MME, UPE, three logic function modules of Inter AS Anchor, MME wherein is the mobile management module, be responsible for the mobile management of chain of command, comprise the management of user's context and mobile status, distributing user temporary identity sign, safety function etc., it is corresponding to the control plane part of current UMTS internal system SGSN; UPE is a user entity, is responsible for initiating paging for downlink data under the idle condition, and IP bearing parameter and the interior routing iinformation of network etc. are preserved in management, and it is for the datum plane part of current UMTS internal system SGSN and GGSN; Inter AS Anchor then serves as the user's face anchor point between different access systems.The function of each interface among the figure and whether exist is not still finally determined.MME, UPE among the figure, how three functional modules of Inter AS Anchor are combined in the entity also is undetermined.

This shows, in evolution network framework, also need to adopt PCC to carry out policy control and billing operation, still, determine as yet at present for the position of PCEF, might be on the MME/UPE entity, also might be on Inter-AS Anchor.No matter how the position of PCEF changes, and present PCC framework is constant basically.

But, do not have clear and definite PCEF in the present standard and be arranged in which network entity, therefore work as the user and be under the roaming situation, and can't realize the strategy of UE and the control of chargeing.

Summary of the invention

In view of this, main purpose of the present invention is strategy and the billing control method that proposes under a kind of user roaming state, to be implemented under the user roaming state the strategy of UE and the control of chargeing.

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

Strategy under a kind of user roaming state and billing control method, this method comprises:

A, subscriber equipment (UE) are set up service bearer to the strategy and the charge execution function PCEF request of visited network, and the PCEF of described visited network is to strategy and the charging rule functions PCRF request strategy and the charging control rule of visited network;

The PCRF of B, visited network is to the corresponding PCRF request implementation strategy of the home network of described UE and the required information of control of chargeing, the corresponding PCRF of UE home network returns described implementation strategy and charges the required information of control to the PCRF of visited network, the PCRF of visited network formulates visited network side strategy and charging control rule according to the described information of returning, and the described visited network side strategy that will formulate and the charging control rule PCEF that sends to visited network.

This method further comprises behind step B:

The PCEF of C, visited network sets up service bearer to the corresponding PCEF request of described home network, and the corresponding PCEF of described home network is to the corresponding PCRF request strategy and the charging control rule of home network;

The corresponding PCRF of D, described home network returns home network side strategy and charging control rule to the PCEF of home network.

The PCEF of the described visited network of steps A carries user ID in the request that the PCRF of visited network sends, this method further comprises between steps A and step B:

The PCRF of A1, visited network judges according to described user ID whether the home network user at UE place is the agreement user, if not, return refusal response message and process ends, if, execution in step B then.

Described step B comprises:

The PCRF of B1, visited network is to the corresponding PCRF request implementation strategy of the home network of described UE and the required information of control of chargeing;

B2, the corresponding PCRF of described home network according to the authorized user message that obtains from user-subscribed database (SPR) judge the user whether can be this visited network the usage policy and the control business of chargeing, if cannot, then the corresponding PCRF of described home network returns refusal response message and process ends to the PCRF of visited network, if can, the corresponding PCRF of described home network returns implementation strategy and charges the required information of control to the PCRF of visited network, the PCRF of visited network formulates visited network side strategy and charging control rule according to the described information of returning, and the described visited network side strategy that will formulate and the charging control rule PCEF that sends to visited network.

This method further comprises between step C and step D:

The corresponding PCRF of C1, described home network according to the authorized user message that obtains from SPR judge the user whether can be this visited network the usage policy and the control business of chargeing, if cannot, the corresponding PCRF of described home network returns refusal response message and process ends to the PCRF of visited network, if of course, execution in step D then.

The PCRF of described UE home network is the home network PCRF of UE acquiescence, and described step B comprises:

The PCRF of B1, visited network is to the home network PCRF of the described acquiescence request implementation strategy and the required information of control of chargeing, and the home network PCRF of described acquiescence returns described implementation strategy and the PCEF node identification of the home network that the PCEF of the charge required information of control, this visited network should insert to the PCRF of visited network;

The PCRF of B2, visited network formulates visited network side strategy and charging control rule according to described implementation strategy of returning and the required information of the control of chargeing, and the PCEF node identification of the PCEF of the described visited network side strategy that will formulate and charging control rule, this visited network home network that should insert sends to the PCEF of visited network.

This method further comprises behind step B:

The PCEF of C2, visited network is according to the PCEF node identification of described home network, service bearer is set up in corresponding PCEF request to home network, and the corresponding PCEF of described home network is to the corresponding PCRF request strategy and the charging control rule of its pairing home network;

The corresponding PCRF of D2, described home network returns home network side strategy and charging control rule to the PCEF of home network.

The PCEF of the described visited network of steps A carries user ID in the request that the PCRF of visited network sends, this method further comprises between steps A and step B:

The PCRF of A2, visited network judges according to described user ID whether the home network user at UE place is the agreement user, if not, return refusal response message and process ends, if, execution in step B then.

The PCRF request implementation strategy and the charging of the described visited network of step B1 are controlled after the required information, and this method further comprises:

The home network PCRF of described acquiescence according to the authorized user message that obtains from SPR judge the user whether can be visited network the usage policy and the control business of chargeing, if cannot, then return refusal response message and process ends to the PCRF of visited network, if can, then return implementation strategy and the required information of control of chargeing to the PCRF of visited network, and execution in step B2.

This method further comprises between step C2 and step D2:

The corresponding PCRF of C22, described home network according to the authorized user message that obtains from SPR judge the user whether can be visited network the usage policy and the control business of chargeing, if cannot, then return refusal response message and process ends to the PCRF of visited network, if of course, execution in step D2 then.

The corresponding PCRF corresponding with the corresponding PCEF of described home network, with the home network PCRF of described acquiescence be one PCRF.

Described PCEF node identification is Internet protocol IP address or network node numbering.

The PCEF of described visited network is positioned at user's face anchor point between connecting system (Inter AS Anchor) and goes up or be positioned at user entity (UPE) and go up or be positioned on the mobile management module (MME).

From technique scheme as can be seen, in the present invention, at first, UE sets up service bearer to the strategy and the charge execution function PCEF request of visited network, and the PCEF of visited network is to strategy and the charging rule functions PCRF request strategy and the charging control rule of visited network; The PCRF of visited network is to the corresponding PCRF request implementation strategy of the home network of UE and the required information of control of chargeing then, the corresponding PCRF of UE home network returns described implementation strategy and charges the required information of control to the PCRF of visited network, the PCRF of visited network formulates visited network side strategy and charging control rule according to the described information of returning, and the described visited network side strategy that will formulate and the charging control rule PCEF that sends to visited network.Equally, the present invention has realized that also the corresponding PCRF of home network returns home network side strategy and charging control rule to the PCEF of home network.Therefore, use after the present invention, be implemented under the user roaming state the strategy of UE and the control of chargeing.

In addition, the present invention has also greatly reduced visited network with the internetwork interface quantity of ownership, is very beneficial for improving the efficient of internetwork ability and service negotiation.

Description of drawings

Fig. 1 is the exemplary flow schematic diagram of under user roaming state strategy and the charging of UE being controlled according to first embodiment of the invention;

Fig. 2 is the exemplary flow schematic diagram of under user roaming state strategy and the charging of UE being controlled according to second embodiment of the invention;

Fig. 3 is the exemplary flow schematic diagram of under user roaming state strategy and the charging of UE being controlled according to third embodiment of the invention;

Fig. 4 is the exemplary flow schematic diagram of under user roaming state strategy and the charging of UE being controlled according to fourth embodiment of the invention.

Embodiment

For making the purpose, technical solutions and advantages of the present invention express clearlyer, the present invention is further described in more detail below in conjunction with drawings and the specific embodiments.

Fig. 1 is the exemplary flow schematic diagram of under user roaming state strategy and the charging of UE being controlled according to first embodiment of the invention.

As shown in Figure 1, this method comprises:

Step 101:UE sets up service bearer to the PCEF of visited network (visit PCEF) request;

The PCEF of step 102, visited network is to the PCRF of visited network (visit PCRF) request strategy and charging control rule.Carry user ID and service identification in preferred this request herein.

The PCRF of step 103, visited network judges according to user ID whether the home network user at UE place can use the present networks business, if cannot, return refusal response message and process ends; Otherwise, be addressed to the corresponding PCRF of the home network of UE, and ask to carry out strategy and the required relevant information of control of chargeing;

After the corresponding PCRF of the home network of step 104, UE receives the relevant information request that PCRF carries out strategy and the control of chargeing is required of visited network, judge according to obtain user's associated authorization information from SPR whether the user can use institute's requested service visited network, if of course, then return and carry out strategy and charge the required relevant information of control to the PCRF of visited network; Otherwise return refusing user's and use this professional response message and process ends;

The information that the PCRF of step 105, visited network returns according to the PCRF of UE home network, and present networks resource situation are formulated corresponding visited network side strategy and charging control rule, and are sent to the PCEF of visited network;

So far, the strategy of visited network side and charging control rule have been formulated and have been finished, and send to the PCEF of visited network.

Preferably, need to formulate the strategy and the charging control rule of home network side.Immediately following said process, below the strategy of home network side and the formulation process of charging control rule are described.

The PCEF of step 106, visited network sends service bearer to the corresponding PCEF of the home network of UE and sets up request;

The PCEF of step 107, home network is to the PCRF of home network request strategy and charging control rule;

The PCRF of step 108, home network judges according to obtain user's associated authorization information from SPR whether the user can use institute's requested service visited network, if of course, then return and carry out home network side strategy and charging control rule to the PCEF of home network; Otherwise return refusing user's and use this professional response message and process ends;

The PCEF of step 109, home network returns carrying to the PCEF of visited network and sets up response message, and sets up carrying;

The PCEF of step 110, visited network returns signaling bear to UE and sets up response message, sets up carrying;

Step 111, carrying are set up successfully, carry out business data transmission.

In the above process, step 110 also can be carried out after step 105, and the present invention is not particularly limited the execution sequence of step 110.

In the above process, the PCEF of visited network can be positioned on the UPE of visited network, or on the MME/UPE, or on the Inter AS Anchor, or on other network entity; Equally, the PCEF of home network can be positioned on the UPE or MME/UPE of home network, or on the Inter ASAnchor of home network, or on other network entity.

Such as, Fig. 2 is the exemplary flow schematic diagram of under user roaming state strategy and the charging of UE being controlled according to second embodiment of the invention.

As shown in Figure 2, this method comprises:

Step 201:UE sets up service bearer to the Inter of visited network AS Anchor (visit Inter AS Anchor) request;

The Inter AS Anchor of step 202, visited network is to the PCRF of visited network (visit PCRF) request strategy and charging control rule.Carry user ID and service identification in preferred this request herein.

The PCRF of step 203, visited network judges according to user ID whether the home network user at UE place can use the present networks business, if cannot, return refusal response message and process ends; Otherwise, to corresponding PCRF request the carrying out strategy of the home network of UE and the required relevant information of control of chargeing;

After the corresponding PCRF of the home network of step 204, UE receives the relevant information request that PCRF carries out strategy and the control of chargeing is required of visited network, judge according to obtain user's associated authorization information from SPR whether the user can use institute's requested service visited network, if of course, then return and carry out strategy and charge the required relevant information of control to the PCRF of visited network; Otherwise return refusing user's and use this professional response message and process ends;

The information that the PCRF of step 205, visited network returns according to the PCRF of UE home network, and present networks resource situation are formulated corresponding visited network side strategy and charging control rule, and are sent to the Inter AS Anchor of visited network;

So far, the strategy of visited network side and charging control rule have been formulated and have been finished, and send to the Inter AS Anchor of visited network.

Preferably, need to formulate the strategy and the charging control rule of home network side.Immediately following said process, below the strategy of home network side and the formulation process of charging control rule are described.

The Inter AS Anchor of step 206, visited network sends service bearer to the corresponding Inter ASAnchor of the home network of UE and sets up request;

The Inter AS Anchor of step 207, home network is to the PCRF of home network request strategy and charging control rule;

The PCRF of step 208, home network judges according to obtain user's associated authorization information from SPR whether the user can use institute's requested service visited network, if of course, then return and carry out home network side strategy and charging control rule to the PCRF of visited network; Otherwise return refusing user's and use this professional response message and process ends;

The Inter AS Anchor of step 209, home network returns carrying to the Inter of visited network AS Anchor and sets up response message, and sets up carrying;

The Inter AS Anchor of step 210, visited network returns signaling bear to UE and sets up response message, sets up carrying;

Step 211, carrying are set up successfully, carry out business data transmission.

In the above process, step 210 also can be carried out after step 205, and the present invention is not particularly limited the execution sequence of step 210.

Fig. 3 is the exemplary flow schematic diagram of under user roaming state strategy and the charging of UE being controlled according to third embodiment of the invention.As shown in Figure 3, this method comprises:

Step 301, UE set up service bearer to the PCEF of visited network request;

The PCEF of step 302, visited network is to the PCRF of visited network request strategy and charging control rule.Preferably, carry user ID and service identification in this request.

The PCRF of step 303, visited network judges according to user ID whether the home network user at UE place can use the present networks business, if cannot, return refusal response message and process ends; Otherwise, to the home network PCRF A of the UE that gives tacit consent to request the carrying out strategy and the required relevant information of control of chargeing;

After the PCRF A of the home network of step 304, UE receives the relevant information request that PCRF carries out strategy and the control of chargeing is required of visited network, judge according to obtain user's associated authorization information from SPR whether the user can use institute's requested service visited network, if can, then return and carry out strategy and charge the required relevant information of control to the PCRF of visited network, return the PCEF node identification of the home network that this visited network PCEF should insert simultaneously, wherein said PCEF node identification is preferably Internet protocol (IP) address or network node numbering; Otherwise, return refusing user's and use this professional response message and process ends;

The information that the PCRF of step 305, visited network returns according to the PCRF A of UE home network, and present networks resource situation, formulate corresponding visited network side strategy and charging control rule and send to the PCEF of visited network, return the PCEF node identification of the home network that this visited network PCEF should insert simultaneously;

So far, the strategy of visited network side and charging control rule have been formulated and have been finished, and send to the PCEF of visited network.

Preferably, need to formulate the strategy and the charging control rule of home network side.Immediately following said process, below the strategy of home network side and the formulation process of charging control rule are described

The PCEF of step 306, visited network sends service bearer foundation request according to the PCEF node identification of the home network that receives to the corresponding PCEF of the home network of UE;

The PCEF of step 307, home network is to its pairing PCRF B request strategy and charging regulation;

Here, at this moment, PCRF B may be PCRF A, also may be another PCRF.

The PCRF B of step 308, home network judges according to obtain user's associated authorization information from SPR whether the user can use institute's requested service visited network, if can, then return home network side strategy and charging control rule to the PCEF of home network; Otherwise return refusing user's and use this professional response message and process ends;

The PCEF of step 309, home network returns carrying to the PCEF of visited network and sets up response, and sets up carrying;

The PCEF of step 310, visited network returns signaling bear to UE and sets up response, and sets up carrying;

Step 311, carrying are set up successfully, carry out business data transmission.

In the above process, step 310 also can be carried out after step 305, and the present invention is not particularly limited the execution sequence of step 310.

In the above process, the PCEF of visited network can be positioned on the UPE of visited network, or on the MME/UPE, or on the Inter AS Anchor, or on other network entity; Equally, the PCEF of home network can be positioned on the UPE or MME/UPE of home network, or on the Inter AS Anchor, or on other network entity.

Such as, Fig. 4 is the exemplary flow schematic diagram of under user roaming state strategy and the charging of UE being controlled according to fourth embodiment of the invention.

As shown in Figure 4, this method comprises:

Step 401, UE set up service bearer to the Inter of visited network AS Anchor request;

The Inter AS Anchor of step 402, visited network is to the PCRF of visited network request strategy and charging control rule.Preferably, carry user ID and service identification in this request.

The PCRF of step 403, visited network judges according to user ID whether the home network user at UE place can use the present networks business, if cannot, return refusal response message and process ends; Otherwise, be addressed to the home network PCRF A of the UE of acquiescence, and ask to carry out strategy and the required relevant information of control of chargeing;

Step 404, after the PCRF A of the home network of UE receives the relevant information request that PCRF carries out strategy and the control of chargeing is required of visited network, judge according to the user's associated authorization information that obtains from SPR whether the user can use institute's requested service visited network, if can, then return and carry out strategy and charge the required relevant information of control to the PCRF of visited network, return the PCEF node identification of the home network that this visited network Inter AS Anchor should insert simultaneously, wherein said PCEF node identification is preferably Internet protocol (IP) address, or network node numbering; Otherwise, return refusing user's and use this professional response message and process ends;

The information that the PCRF of step 405, visited network returns according to the PCRF A of UE home network, and present networks resource situation, formulate corresponding visited network side strategy and charging control rule and send to the Inter AS Anchor of visited network, return the PCEF node identification of the home network that this visited network Inter AS Anchor should insert simultaneously;

So far, the strategy of visited network side and charging control rule have been formulated and have been finished, and send to the Inter AS Anchor of visited network.

Preferably, need to formulate the strategy and the charging control rule of home network side.Immediately following said process, below the strategy of home network side and the formulation process of charging control rule are described

The Inter AS Anchor of step 406, visited network sends service bearer foundation request according to the Inter ASAnchor node identification of the home network that receives to the corresponding Inter AS Anchor of the home network of UE;

The Inter AS Anchor of step 407, home network is to its pairing PCRF B request strategy and charging regulation;

Here, at this moment, PCRF B may be PCRF A, also may be another PCRF.

The PCRF B of step 408, home network judges according to obtain user's associated authorization information from SPR whether the user can use institute's requested service visited network, if can, then return home network side strategy and charging control rule to the PCRF of visited network; Otherwise return refusing user's and use this professional response message and process ends;

The Inter AS Anchor of step 409, home network returns carrying to the Inter of visited network AS Anchor and sets up response, and sets up carrying;

The Inter AS Anchor of step 410, visited network returns signaling bear to UE and sets up response, and sets up carrying;

Step 411, carrying are set up successfully, carry out business data transmission.

In the above process, step 410 also can be carried out after step 405, and the present invention is not particularly limited the execution sequence of step 410.

The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (13)

1. strategy and the billing control method under the user roaming state is characterized in that this method comprises:
A, user equipment (UE) are set up service bearer to the strategy and the charge execution function PCEF request of visited network, and the PCEF of described visited network is to strategy and the charging rule functions PCRF request strategy and the charging control rule of visited network;
The PCRF of B, visited network is to the corresponding PCRF request implementation strategy of the home network of described UE and the required information of control of chargeing, the corresponding PCRF of UE home network returns described implementation strategy and charges the required information of control to the PCRF of visited network, the PCRF of visited network formulates visited network side strategy and charging control rule according to the described information of returning, and the described visited network side strategy that will formulate and the charging control rule PCEF that sends to visited network.
2. strategy according to claim 1 and billing control method is characterized in that, this method further comprises behind step B:
The PCEF of C, visited network sets up service bearer to the corresponding PCEF request of described home network, and the corresponding PCEF of described home network is to the corresponding PCRF request strategy and the charging control rule of home network;
The corresponding PCRF of D, described home network returns home network side strategy and charging control rule to the PCEF of home network.
3. strategy according to claim 1 and 2 and billing control method is characterized in that, the PCEF of the described visited network of steps A carries user ID in the request that the PCRF of visited network sends, and this method further comprises between steps A and step B:
The PCRF of A1, visited network judges according to described user ID whether the home network user at UE place is the agreement user, if not, return refusal response message and process ends, if, execution in step B then.
4. strategy according to claim 1 and 2 and billing control method is characterized in that, described step B comprises:
The PCRF of B1, visited network is to the corresponding PCRF request implementation strategy of the home network of described UE and the required information of control of chargeing;
B2, the corresponding PCRF of described home network judges according to the authorized user message that obtains from user-subscribed database SPR whether the user can use the business of being asked this visited network, if cannot, then the corresponding PCRF of described home network returns refusal response message and process ends to the PCRF of visited network, if can, the corresponding PCRF of described home network returns implementation strategy and charges the required information of control to the PCRF of visited network, the PCRF of visited network formulates visited network side strategy and charging control rule according to the described information of returning, and the described visited network side strategy that will formulate and the charging control rule PCEF that sends to visited network.
5. strategy according to claim 2 and billing control method is characterized in that, this method further comprises between step C and step D:
The corresponding PCRF of C1, described home network judges according to the authorized user message that obtains from SPR whether the user can use the business of being asked this visited network, if cannot, the corresponding PCRF of described home network returns refusal response message and process ends to the PCRF of visited network, if of course, execution in step D then.
6. strategy according to claim 1 and billing control method is characterized in that, the PCRF of described UE home network is the home network PCRF of UE acquiescence, and described step B comprises:
The PCRF of B1, visited network is to the home network PCRF of the described acquiescence request implementation strategy and the required information of control of chargeing, and the home network PCRF of described acquiescence returns described implementation strategy and the PCEF node identification of the home network that the PCEF of the charge required information of control, this visited network should insert to the PCRF of visited network;
The PCRF of B2, visited network formulates visited network side strategy and charging control rule according to described implementation strategy of returning and the required information of the control of chargeing, and the PCEF node identification of the PCEF of the described visited network side strategy that will formulate and charging control rule, this visited network home network that should insert sends to the PCEF of visited network.
7. strategy according to claim 6 and billing control method is characterized in that, this method further comprises behind step B:
The PCEF of C2, visited network is according to the PCEF node identification of described home network, service bearer is set up in corresponding PCEF request to home network, and the corresponding PCEF of described home network is to the corresponding PCRF request strategy and the charging control rule of its pairing home network;
The corresponding PCRF of D2, described home network returns home network side strategy and charging control rule to the PCEF of home network.
8. according to claim 6 or 7 described strategy and billing control methods, it is characterized in that the PCEF of the described visited network of steps A carries user ID in the request that the PCRF of visited network sends, this method further comprises between steps A and step B:
The PCRF of A2, visited network judges according to described user ID whether the home network user at UE place is the agreement user, if not, return refusal response message and process ends, if, execution in step B then.
9. according to claim 6 or 7 described strategy and billing control methods, it is characterized in that the PCRF request implementation strategy and the charging of the described visited network of step B1 are controlled after the required information, this method further comprises:
The home network PCRF of described acquiescence judges according to the authorized user message that obtains from SPR whether the user can use the business of being asked visited network, if cannot, then return refusal response message and process ends to the PCRF of visited network, if can, then return implementation strategy and the required information of control of chargeing to the PCRF of visited network, and execution in step B2.
10. strategy according to claim 7 and billing control method is characterized in that, this method further comprises between step C2 and step D2:
The corresponding PCRF of C22, described home network judges according to the authorized user message that obtains from SPR whether the user can use the business of being asked visited network, if cannot, then return refusal response message and process ends to the PCRF of visited network, if of course, execution in step D2 then.
11. strategy according to claim 7 and billing control method is characterized in that, the corresponding PCRF corresponding with the corresponding PCEF of described home network, with the home network PCRF of described acquiescence be one PCRF.
12., it is characterized in that described PCEF node identification is Internet protocol IP address or network node numbering according to each described strategy and billing control method in the claim 6,7,10,11.
13. it is characterized in that according to each described strategy and billing control method in the claim 1,2,5,6,7 PCEF of described visited network is positioned between connecting system on user's face anchor point Inter AS Anchor or is positioned at user entity UPE and goes up or be positioned on the mobile management module MME.
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