CN103188646B - The offer method of charge information, apparatus and system - Google Patents

Abstract

The invention discloses a kind of offer method of charge information, apparatus and system.Wherein, this method includes：Fixed broadband access device receives the first charging policy that "Policy and Charging Rules Function entity (PCRF) provides；Fixed broadband access device provides the charge information of the user equipment by Broadband Forum (BBF) authentication and authorization charging (AAA) server and 3GPP aaa servers according to the first charging policy to charge system.By the present invention, realize fixed network and mobile network merges the offer of the charge information under scene.

Description

The offer method of charge information, apparatus and system

Technical field

The present invention relates to the communications field, offer method, apparatus and system in particular to a kind of charge information.

Background technology

Fig. 1 a are that third generation partner program (3rd Generation Partnership Project, is referred to as 3GPP) the schematic diagram of grouping system (Evolved Packet System, referred to as EPS) structure composed of evolution, such as Fig. 1 institutes The EPS network architectures for the non-roaming scene shown include：UMTS land radio access web (the Evolved of evolution Universal Terrestrial Radio Access Network, referred to as E-UTRAN), mobile management unit (Mobility Management Entity, referred to as MME), gateway (Serving Gateway, referred to as S-GW), Grouped data network gateway (Packet Data Network Gateway, referred to as P-GW, also referred to as PDN GW), ownership are used Family server (Home Subscriber Server, referred to as HSS), "Policy and Charging Rules Function (Policy and Charging Rules Function, referred to as PCRF) entity and other support nodes composition.

Wherein, PCRF is strategy and the core of charging control (Policy and Charging Control, referred to as PCC) The heart, it is responsible for strategic decision-making and the formulation of charging regulation.PCRF provides the network control rule based on business data flow, these nets Network control include business data flow detection, gate (Gating Control), service quality (Quality of Service, Referred to as QoS) control and the charging regulation based on data flow etc..The strategy and charging regulation that PCRF is formulated are sent to plan Slightly performed with charge execution function (Policy and Charging Enforcement Function, referred to as PCEF), together When, PCRF also needs to ensure that these rules are consistent with the signing information of user.The foundation bag that PCRF generates strategy with charging regulation Include：The information related to business is obtained from application function (Application Function, referred to as AF)；From user's signing number User policy, billing control and subscription information is obtained according to storehouse (Subscription Profile Repository, referred to as SPR)； The information with carrying network of relation is obtained from PCEF.

EPS supports the intercommunication with non-3 GPP system, and the intercommunication of EPS and non-3 GPP system is realized by S2a/b/c interfaces, P- GW is as the anchor point between 3GPP and non-3 GPP system.As shown in Figure 1a, wherein non-3 GPP system is divided into trusted non-3 gpp IP Access and trustless non-3 gpp IP accesses.Trusted non-3 gpp IP accesses directly can be connected by S2a interfaces with P-GW；No Trusted non-3 gpp IP accesses packet data gateway (Evolved Packet Data Gateway, abbreviation that need to be Jing Guo evolution For ePDG) it is connected with P-GW, the interface between ePDG and P-GW is S2b interfaces, and is assisted safely using IP layers between UE and ePDG Protection is encrypted to signaling and data in view (IP Security, referred to as IPSec).S2c interfaces provide user equipment The related control of the user plane of (User Equipment, referred to as UE) between P-GW and mobility support, its shifting supported Mobility management agreement is to support mobile IP v 6 (the Mobile IPv6 support for dual stack Hosts and of double stacks Routers, referred to as DSMIPv6).

At present, many operator's concern fixed network mobile fusions (Fixed Mobile Convergence, referred to as FMC), And interconnect and studied for 3GPP and Broadband Forum (Broadband Forum, referred to as BBF).Pass through for user The scenes of BBF access mobile core nets is, it is necessary to whole transmission path to data (data can pass through fixed network and mobile network transmits) On QoS ensured.In the prior art, framework (Broadband is controlled by the broadband policy in PCRF and BBF accesses Policy Control Framework, referred to as BPCF) interact, realize that QoS is ensured.BPCF is the plan in BBF accesses Framework is slightly controlled, to PCRF resource request message, network strategy that BPCF accesses according to BBF, signing information etc. carry out resource Call access control or other network elements (such as wideband network gateway (Broadband that resource request message is transmitted to BBF access networks Network Gateway, referred to as BNG)), then perform resource and admission control by other network elements and (entrust other network elements to perform money Source call access control).For example, when UE accesses 3GPP core nets by WLAN (Wireless Local, referred to as WLAN) When, in order to which the total bandwidth need for all UE access services for ensureing to access by a WLAN line attachment is no more than the circuit Bandwidth (the greatest physical agency supported such as signing bandwidth or the circuit), PCRF needs to interact with BPCF when carrying out QoS mandates, So that BBF access networks perform the call access control of resource.

The research that 3GPP and BBF interconnect at present mainly includes two aspects：3GPP UE are accessed by BBF WLAN EPC scene and 3GPP UE accesses 3GPP cores by evolved Home eNodeB (Home E-UTRAN NodeB, referred to as HeNB) BBF access networks are connected to 3GPP core nets by the scene of heart net, wherein H (e) NB.

Fig. 1 b are that UE is shown by the framework of BBF WLAN access 3GPP core nets under the non-roaming scene according to correlation technique It is intended to, as shown in Figure 1 b, BBF access networks are as non-3 GPP access network.When using S2b interfaces, BBF access networks are trustless Non-3 GPP access network, ePDG and P-GW S2b interfaces use general packet wireless service tunnel protocol (General Packet Radio Service Tunnelling Protocol, referred to as GTP) or proxy mobile IPv 6 (Proxy Mobile IPv6, Referred to as PMIPv6) agreement, when using S2c interfaces, if BBF access networks are trusty, in the absence of ePDG, otherwise exist ePDG.Fig. 2 a and Fig. 2 b are that UE accesses 3GPP cores by BBF WLAN under local route and two kinds of scenes of local break-out respectively The configuration diagram of net.Fig. 2 c, Fig. 2 d and Fig. 2 e are that (i.e. PCRF is supported to fixed broadband access network equipment for complete fusion respectively Policy control) under scene, UE passes through the configuration diagram that BBFWLAN accesses 3GPP core nets.

Fig. 3 is to be accessed according to the UE of correlation technique by trustless BBF access networks under the non-roaming scene of 3GPP core nets The flow chart of adherence method.GTP agreements are used between ePDG and P-GW in figure 3, as shown in figure 3, can include following Step (step S302- step S332).

Step S302, alternatively, after UE access BBF access systems, the access authentication based on 3GPP is performed, UE provides international CUSTOMER ID (International Mobile Subscriber Identification Number, referred to as IMSI) (being used for access authentication).

Step S304, UE obtain local ip address from BBF access networks.The address may be distributed by RG or BNG.

Step S306, receive step S302 or step S304 triggering, notice BPCF user equipment access BBF access networks.

Step S308, BPCF send procotol connected reference network (Internet Protocol to PCRF Connectivity Access Network, referred to as IP-CAN) session establishment message, carry user and identify, local IP Location.

Step S310, PCRF return to IP-CAN session establishment confirmation messages to BPCF.PCRF may need to obtain with SPR interactions Take contracted user's strategic decision-making at family.

After step S312, UE selection ePDG, initiation IKEv2 (IKE (Internet Key Management, Referred to as IKE)) tunnel establishment procedure, and using Extensible Authentication Protocol (Extensible Authentication Protocol, referred to as EAP) it is authenticated.If there is network address translation (Network Address in UE and ePDG Translation, referred to as NAT) or network port address conversion (Network Address Port Translation, letter Referred to as NAPT) (NA (P) T on residential gateway (RG) being such as present), then IKEv2 signalings are passed through NAT is performed.

Passed through because IKEv2 signalings may have passed through NA (P) T, therefore, the source address and source port number that ePDG is received can Source address and source port number when can be sent from UE is different.If not passed through by NA (P) T, source address is that UE is being accessed The local ip address obtained during BBF access networks.

Scene for NA (P) T is not present between UE and ePDG, the source for the IKEv2 signalings that the UE that ePDG is received is sent Address is the local ip address of BBF access networks distribution, and the address can be encapsulated with the unique mark UE by the ipsec tunnel Business data flow.

For having (1 between UE and ePDG:1) NAT scene, the source for the IKEv2 signalings that the UE that ePDG is received is sent Address is the public network IP address after NAT, but due to being 1:1 NAT, the address still can be with the unique mark UE by this The business data flow of ipsec tunnel encapsulation.

For (N between UE and ePDG:1) NAT (i.e. NAPT), business data flow need to carry out number of users in passing through NAT Encapsulated according to agreement (User Date Protocol, referred to as UDP), NAPT can be that the ipsec tunnel distributes source UDP port number (for UE up direction).Therefore, for the business data flow that the unique mark UE is encapsulated by the ipsec tunnel, extremely Need less the IKEv2 signalings that the UE that ePDG receives sends source address (public network IP address i.e. after BBF access networks NAT, if NAT is located at RG, and the address is exactly RG address) and the source port numbers of IKEv2 signalings that send of the UE that receive of ePDG are (i.e. IPSec sources UDP port number).

For convenience of description, UE is also referred to as local ip address by NAT IP address.

After step S314, ePDG selection P-GW, sent to P-GW and create conversation request message, creating conversation request message In carry user mark and PDN mark and local ip address and source UDP port number (if detecting NA (P) T).

Step S316, P-GW are that UE distributes IP address, positioned at P-GW strategy and charge execution function logic entity (Policy and Control Enforcement Function, referred to as PCEF) sends IP-CAN session establishments to PCRF Message is indicated, user's mark, PDN marks, the IP address for UE distribution, UE are carried in IP-CAN session establishments indicate message Local ip address and source UDP port number (if detecting NA (P) T).Network can also be determined whether UE performs by P-GW simultaneously Reflective QoS decision-making is sent to PCRF.

Step S318, PCRF formulate PCC rules according to subscription data, network strategy and access network attribute etc..Further, PCRF is according to PCC Rulemakings QoS rules.

Step S320, P-GW are to authentication and authorization charging (Authentication, Authorization and Accounting, referred to as AAA) server (Server) transmission renewal P-GW IP address message, P-GW address is sent to AAA Server, AAA Server are further interacted with HSS and P-GW address are saved in HSS.

Step S322, P-GW are returned to ePDG and are created session confirmation message, are carried in session confirmation message is created promising The IP address of UE distribution.

Step S324, establishes ipsec tunnel between UE and ePDG.

Step S326, ePDG send the last item IKEv2 signalings to UE, wherein carrying UE IP address.

Step S328, PCRF perform the gateway control session Establishing process that PCRF is initiated, to BPCF with providing UE local IP Location, source UDP port number (if detecting NA (P) T), and the QoS rules formulated.

Step S330, if step S308- steps S310 is not carried out, BPCF initiates IP-CAN session establishment flows.PCRF The strategy of offload Operational Visits is provided to BPCF.

Strategy is supplied to BNG or Broadband Remote Access Server (Broadband Remote by step S332, BPCF Access Server, referred to as BRAS).

By above-mentioned flow, the local ip address that UE can use fixed broadband access network to distribute carries out offload business (business even any IP network that business can include the business that fixed broadband access network provides, mobile operator is provided Business) and evolution packet-based core networks (Evolved Packet Core, referred to as EPC) distribution IP address carry out business visit Ask (business that for example business is mobile operator offers).

In the prior art, when UE complete step S302- step S304, that is, complete access authentication and IP address distribution after, BNG/BRAS sends charging request message (Accounting-Request (start)) by BBF AAA to 3GPP AAA, and The time cycle is obtained when in the whole life cycle of user conversation (i.e. fixed broadband access network session) according in access authentication Charge information (user as passed through BNG/BRAS of BNG/BRAS collections is periodically reported to BBF AAA and 3GPP AAA Service traffics information).When user conversation terminates, BNG/BRAS sends accounting request to 3GPP AAA by BBF AAA and disappeared Cease (Accounting-Request (stop)).

It can be seen from foregoing description, in the related art, only after UE completes 3GPP-based access authentications, BNG/ BRAS could send Accounting-Request (start) to BBF AAA, 3GPP AAA.Otherwise, BNG/BRAS can not be triggered The message.In addition, only completing access authentication, BNG/BRAS could be according to the time obtained in Access Accept message Cycle (being carried from Acc-Interim-Interval AVP) periodically reports the charging of collection to BBF AAA, 3GPP AAA Information.Therefore, in the related art, if UE does not perform access authentication, charging can not be carried out to UE.

The content of the invention

The problem of in correlation technique, in the case where UE does not perform access authentication, charging can not be carried out to UE, this hair The bright a kind of offer method for providing charge information, apparatus and system.

According to an aspect of the invention, there is provided a kind of offer method of charge information, including：Fixed broadband access is set Standby the first charging policy for receiving "Policy and Charging Rules Function entity (PCRF) and providing；The fixed broadband access device according to First charging policy, by Broadband Forum (BBF) authentication and authorization charging (AAA) server and 3GPP aaa servers to meter Charge system provides the charge information of the user equipment.

Preferably, it is described before the first charging policy that the fixed broadband access device receives that the PCRF is provided Method also includes：The PCRF decision-makings are used for first charging policy of fixed broadband access network, by the first charging plan Slightly it is supplied to the fixed broadband access device.

Preferably, before the charging policy that the fixed broadband access device receives that the PCRF is provided, methods described Also include：The PCRF obtains the second charging policy that the 3GPP aaa servers provide；The PCRF is according to described second Charging policy, decision-making are used for first charging policy of fixed broadband access network, first charging policy are supplied into institute State fixed broadband access device.

Preferably, the PCRF obtains the second charging policy that the 3GPP aaa servers provide, including：In the use Family equipment and the packet data gateway of evolution (ePDG) establish IP layers security protocol (IP Security, referred to as IPSec) tunnel During, the 3GPP aaa servers provide second charging policy of the user equipment to the ePDG；It is described EPDG provides second charging policy by the grouped data network gateway P-GW of selection to the PCRF.

Preferably, the PCRF obtains the second charging policy that the 3GPP aaa servers provide, including：In the use Family equipment is established in tunneling process with ePDG, and the 3GPP aaa servers are provided described in the user equipment to the ePDG Second charging policy；Positioned at bearing binding and event reporting function entity (the Bearer Binding and of the ePDG Event Reporting Function, BBERF) to the PCRF send gateway control session establish message, wherein, the net Close in control session establishment message and carry second charging policy.

Preferably, the PCRF obtains the second charging policy that the 3GPP aaa servers provide, including：In the use During family equipment establishes Security Association with P-GW, the 3GPP aaa servers provide the user equipment to the P-GW Second charging policy；The P-GW indicates that message provides second meter to the PCRF by IP-CAN session establishments Take strategy.

Preferably, the fixed broadband access device by Broadband Forum (BBF) authentication and authorization charging (AAA) server and 3GPP aaa servers provide the charge information of the user equipment to charge system, including：The fixed broadband access device When obtaining first charging policy, detect during the business datum of the user or detect the unloading of the user (offload) during business datum, the fixed broadband access device sends metering data to the BBF aaa servers and starts to ask Seek message；The metering data is started request message and is transmitted to 3GPP aaa servers by the BBF aaa servers；It is described 3GPP aaa servers are sent to the charge system after the charging start request message is changed.

Preferably, the fixed broadband access device is taken by Broadband Forum authentication and authorization charging server and 3GPP AAA Device be engaged in the charge information of the charge system offer user equipment, including：When the charging week of first charging policy instruction When phase reaches, the fixed broadband access device is sent to the 3GPP aaa servers by the BBF aaa servers and counted Expense data intermediate request message is to report charge information, and the 3GPP aaa servers are by the metering data intermediate request message The charge system is sent to after conversion.

Preferably, the information that the PCRF provides to the fixed broadband access device also includes：Address information, wherein, The address information includes：The local ip address and ePDG IP address of the user equipment, or, the local of the user equipment IP address and P-GW addresses；Or in the case where detecting NAPT, the address information includes：The sheet of the user equipment Ground IP address and source UDP port number.

Preferably, the fixed broadband access device by BBF aaa servers and 3GPP aaa servers to charging system System provides the charge information of the user equipment, including：The fixed broadband access device distinguishes institute according to the address information State the data and offload data of packet-based core networks (EPC) route of the evolution of user equipment；The fixed broadband access device The EPC charge informations routeing and/or Offload charge information are passed through into the BBF aaa servers and the 3GPP Aaa server is sent to the charge system.

Preferably, the information that the PCRF provides to the fixed broadband access device also includes：In the user equipment Tunnel building or Security Association establish during certification session identification；The metering data starts also to carry in request State session identification.

Preferably, the information that the PCRF provides to the fixed broadband access device also includes：In the user equipment Tunnel building or Security Association establish during participate in certification the 3GPP aaa servers mark or address；It is described solid Determine broadband access equipment to pass through described in the BBF aaa servers and the 3GPP aaa servers to charge system offer The charge information of user equipment, including：The fixed broadband access device provides the 3GPP to the BBF aaa servers The mark of aaa server or address；Mark or address of the BBF aaa servers according to the 3GPP aaa servers, to The 3GPP aaa servers send the charge information.

Preferably, methods described also includes：The PCRF terminations and broadband policy control framework BPCF gateway control meeting Words, the BPCF judge that the gateway control session is initiated after last gateway control session of user equipment correlation IP-CAN session terminations flow simultaneously notifies that user equipment described in the fixed broadband access device is offline or stops reporting the meter Charge information；The fixed broadband access device passes through described in the BBF aaa servers and 3GPP aaa servers notice Charge system stops charging.

According to another aspect of the present invention, there is provided a kind of offer device of charge information, accessed positioned at fixed-bandwidth Equipment side, described device include：Receiving module, by receive "Policy and Charging Rules Function entity (PCRF) offer first based on Take strategy；Module is provided, for according to first charging policy, by BBF aaa servers and 3GPP aaa servers to Charge system provides the charge information of the user equipment.

Preferably, the offer module includes at least one of：First sending module, for obtaining first charging When tactful, the offload business datums that detect during the business datum of the user or detect the user when, by described BBFAAA servers are disappeared request the metering data by the 3GPP aaa servers to the 3GPP aaa servers The charge system is sent to after breath conversion；Second sending module, for the metering period indicated when first charging policy During arrival, metering data intermediate request is sent in terms of reporting to the 3GPP aaa servers by the BBF aaa servers Charge information, the charge system is sent to after the metering data intermediate request is changed by the 3GPP aaa servers；The Three sending modules, for offline or when stopping reporting the advice of charge information when receiving the user equipment, by described BBFAAA servers and the 3GPP aaa servers notify the charge system to stop charging.

Preferably, the information that the PCRF provides to the fixed broadband access device also includes：Address information, wherein, The address information includes：The local ip address and ePDG IP address of the user equipment, or, the local of the user equipment IP address and P-GW addresses；Or in the case where detecting NAPT, the address information includes：The sheet of the user equipment Ground IP address and source UDP port number；Described device also includes：Discriminating module, for distinguishing the use according to the address information The data traffic that the data traffic and unloading offload of the EPC routes of family equipment access；The offer module is used for by described in The charge information of EPC routes and/or Offload charge information are taken by the BBF aaa servers and the 3GPP AAA Business device is sent to the charge system.

Preferably, the information that the PCRF is provided also includes：Built in the tunnel building or Security Association of the user equipment Mark or the address of the 3GPP aaa servers of certification are participated in during vertical；The offer module is additionally operable to the participation The mark of the 3GPP aaa servers of certification or address are supplied to the BBF aaa servers.

According to a further aspect of the invention, there is provided a kind of offer system of charge information, including：Strategy and charging rule Then functional entity PCRF, for providing the first charging policy to fixed broadband access device；The fixed broadband access device, bag The device of the above-mentioned offer of the present invention is included, for according to first charging policy, passing through Broadband Forum BBF authentication and authorization chargings Aaa server and 3GPP aaa servers provide the charge information of the user equipment to charge system.

Preferably, the PCRF includes：Acquisition module, the second charging provided for obtaining the 3GPP aaa servers Strategy；Decision-making module, for being used for the first charging plan of fixed broadband access network according to second charging policy, decision-making Slightly；Module is provided, for first charging policy to be supplied into the fixed broadband access device.

By the present invention, fixed broadband access device is receiving "Policy and Charging Rules Function entity in confirmation user equipment Session establishment after after the first charging policy for providing, according to the first charging policy received, by BBFAAA servers and 3GPPAAA servers provide the charge information of the user equipment to charge system, so that not performing access even in UE In the case of certification, UE charge information can also be provided to charge system, and then realize fixed network and mobile network is melted Close and charging is carried out to UE under scene.

Brief description of the drawings

Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：

Fig. 1 a are the schematic diagrames according to the 3GPP EPS structure composeds of correlation technique；

Fig. 1 b are that UE is shown by the framework of BBF WLAN access 3GPP core nets under the non-roaming scene according to correlation technique It is intended to；

Fig. 2 a are to route UE under scene according to the local of correlation technique to pass through the framework of BBF WLAN access 3GPP core nets Schematic diagram；

Fig. 2 b are the frameworks that UE accesses 3GPP core nets by BBF WLAN under the local break-out scene according to correlation technique Schematic diagram；

Fig. 2 c are that UE passes through BBF WLAN access 3GPP core nets under the first complete fusion scene according to correlation technique Configuration diagram；

Fig. 2 d are to merge UE under scene completely according to second of correlation technique to access 3GPP core nets by BBF WLAN Configuration diagram；

Fig. 2 e are that UE passes through BBF WLAN access 3GPP core nets under the third complete fusion scene according to correlation technique Configuration diagram；

Fig. 3 is to be accessed according to the UE of correlation technique by trustless BBF access networks under the non-roaming scene of 3GPP core nets The flow chart of adherence method；

Fig. 4 is the schematic diagram of the offer system of charge information according to embodiments of the present invention；

Fig. 5 is the structured flowchart of the offer device of charge information according to embodiments of the present invention；

Fig. 6 is a kind of structured flowchart of the offer device of preferable charge information according to embodiments of the present invention；

Fig. 7 is the flow chart of the offer method of charge information according to embodiments of the present invention；

Fig. 8 is the flow chart of the offer method of according to embodiments of the present invention one charge information；

Fig. 9 is the flow chart of the offer method of according to embodiments of the present invention two charge information；

Figure 10 is the flow chart of the offer method of according to embodiments of the present invention three charge information；

Figure 11 is the flow chart of the offer method of according to embodiments of the present invention four charge information；

Figure 12 is the flow chart of the method for according to embodiments of the present invention five end charging.

Embodiment

Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not conflicting In the case of, the feature in embodiment and embodiment in the application can be mutually combined.

According to embodiments of the present invention, there is provided a kind of offer system of charge information, can be in fixed network and mobile network Under the scene of network fusion, realize that fixed broadband access device provides the charge information of user equipment to charge system.

Fig. 4 is the schematic diagram of the offer system of charge information according to embodiments of the present invention, as shown in figure 4, the system can With including："Policy and Charging Rules Function entity (PCRF) 1 and fixed broadband access device 2.Wherein, strategy and charging regulation work( Energy entity 1, for providing the first charging policy to fixed broadband access device 2.Fixed broadband access device 2, for according to plan The first charging policy slightly provided with charging regulation function entity 1, pass through Broadband Forum (BBF) authentication and authorization charging (AAA) and take Business device and 3GPP aaa servers provide the charge information of user equipment to charge system.

By the embodiment of the present invention, fixed broadband access device receives first that "Policy and Charging Rules Function entity provides Charging policy；Fixed broadband access device passes through Broadband Forum BBF authentication and authorization chargings according to the first charging policy received Aaa server and 3GPP aaa servers provide the charge information of the user equipment to charge system, realize fixed network The offer of charge information under scene is provided with mobile network.

According to being actually needed, the charging policy that "Policy and Charging Rules Function entity 1 provides to fixed broadband access device 2 It (the first charging policy), can be provided, can also be generated by "Policy and Charging Rules Function entity 1 by 3GPP aaa servers.

In embodiments of the present invention, it is described exemplified by providing charge information by 3GPP aaa servers.Strategy and meter Take regulation function entity 1 and obtain the second charging policy that 3GPP aaa servers provide."Policy and Charging Rules Function entity 1 According to the second charging policy of acquisition, decision-making is used for the first charging policy of fixed broadband access network, the first charging policy is provided To fixed broadband access device 2.

In a preferred embodiment of the embodiment of the present invention, to achieve these goals, strategy and charging regulation work( Energy entity 1 can include：Acquisition module 102, decision-making module 104 and offer module 106.Wherein, acquisition module 102, for obtaining The second charging policy for taking 3GPPAAA servers to provide；Decision-making module 104, it is coupled with acquisition module 102, is obtained for basis The second charging policy that modulus block 102 obtains, decision-making are used for the first charging policy of fixed broadband access network；Module 106 is provided, It is coupled with decision-making module 104, the first charging policy for decision-making module 104 to be determined is supplied to fixed broadband access to set It is standby.

In embodiments of the present invention, fixed broadband access device 2 can be, but not limited to the offer device by charge information, Realize the above-mentioned function of description of the embodiment of the present invention.

Fig. 5 is the structured flowchart of the offer device of charge information according to embodiments of the present invention, as shown in figure 5, the device It can include：Receiving module 202 and offer module 204.Wherein, receiving module 202, for receiving "Policy and Charging Rules Function The first charging policy that entity 1 provides；Module 204 is provided, is coupled with receiving module 202, for being connect according to receiving module 202 The first charging policy received, by Broadband Forum (BBF) authentication and authorization charging (AAA) server and 3GPP aaa servers to meter Charge system provides the charge information of user equipment.

By the embodiment of the present invention, fixed broadband access device receives "Policy and Charging Rules Function entity and is confirming user The first charging policy provided after the session establishment of equipment；Fixed broadband access device according to the first charging policy received, By Broadband Forum BBF authentication and authorization chargings aaa server and 3GPP aaa servers to charge system (can be offline charging System (OFCS) or Online Charging System (OCS)) charge information of the user equipment is provided, realize fixed net Network and mobile network merge the offer of the charge information under scene.

In a preferred embodiment of the embodiment of the present invention, the information of the offer of "Policy and Charging Rules Function entity 1, The user that user equipment can also be included identifies.There is provided module 204 can include：First sending module, for obtaining described During one charging policy, the offload business datums that detect during the business datum of the user or detect the user when, lead to The BBF aaa servers are crossed to the 3GPP aaa servers, are opened the metering data by the 3GPP aaa servers The charge system is sent to after the conversion of beginning request message；And/or second sending module, for being indicated when the first charging policy Metering period when reaching, metering data intermediate request is sent to report to 3GPP aaa servers by BBF aaa servers Charge information, the charge system is sent to after the metering data intermediate request is changed by the 3GPP aaa servers； And/or the 3rd sending module, for offline or when stopping reporting the advice of charge information when receiving the user equipment, The charge system is notified to stop charging by the BBF aaa servers and the 3GPP aaa servers.

Further, in a preferred embodiment of the embodiment of the present invention, in order that fixed broadband access device 2 can To distinguish the data traffic of the data traffic of UE EPC routes and Offload access."Policy and Charging Rules Function entity 1 to The information that fixed broadband access device 2 provides also includes：Address information.The address information includes：The local of above-mentioned user equipment IP address and ePDG IP address, or, the address information includes：The local ip address of above-mentioned user equipment and P-GW addresses.Or Person, in the case where detecting NAPT, address above mentioned information includes：Above-mentioned user equipment local ip address and source udp port Number.

The address information that fixed broadband access device 2 can provide according to "Policy and Charging Rules Function entity 1, can be with area Divide the data traffic of the EPC routes of user equipment and the data traffic of unloading (Offload) access.Therefore, implement in the present invention In one preferred embodiment of example, as shown in fig. 6, said apparatus can also include：Discriminating module 206, for according to address The data traffic that the data traffic and Offload of the EPC routes of data separation user equipment access.In this case, there is provided Module 204, be additionally operable to the charge information of EPC routes and/or Offload charge information by the BBFAAA servers and The 3GPP aaa servers are sent to the charge system.

Further, the information that "Policy and Charging Rules Function entity 1 provides can also include：In the tunnel of user equipment Foundation or Security Association participate in mark or the address of the 3GPP aaa servers of certification during establishing.In this case, carry For module 206, the mark or address for being additionally operable to that the 3GPP aaa servers of certification will be participated in are supplied to the BBF AAA to service Device, so that when multiple 3GPP aaa servers be present, BBF AAA can determine to connect fixed broadband according to the mark or address The charge information for entering equipment transmission is sent to 3GPP aaa servers corresponding to the mark or address.

According to embodiments of the present invention, a kind of offer method of charge information is be provided, can be, but not limited in the present invention In the offer system for the above-mentioned charge information that embodiment provides, realize under fixed network and the scene of mobile network's fusion, Gu Determine the charge information that broadband access equipment provides user equipment to charge system.

Fig. 7 is the flow chart of the offer method of charge information according to embodiments of the present invention, as shown in fig. 7, this method can With including following steps (step S702- step S704)：

Step S702, fixed broadband access device receive the first meter that "Policy and Charging Rules Function entity (PCRF) provides Take strategy.

Step S704, fixed broadband access device pass through Broadband Forum (BBF) certification according to the first charging policy of reception Charging (AAA) server and 3GPP aaa servers is authorized to provide the charge information of user equipment to charge system.

By the embodiment of the present invention, fixed broadband access device receives first that "Policy and Charging Rules Function entity provides Charging policy；Fixed broadband access device passes through Broadband Forum BBF authentication and authorization chargings according to the first charging policy received Aaa server and 3GPP aaa servers provide the charge information of the user equipment to charge system, realize fixed network The offer of charge information under scene is provided with mobile network.

In embodiments of the present invention, "Policy and Charging Rules Function entity 1 provided to fixed broadband access device 2 first Charging policy, two kinds of sides can be obtained by being generated by "Policy and Charging Rules Function entity 1, and from 3GPP aaa servers Formula is realized, aforesaid way is described separately below.

Mode one

"Policy and Charging Rules Function entity 1 directly generates the first charging policy."Policy and Charging Rules Function entity 1 can It is used for the first charging policy of fixed broadband access network with decision-making, is supplied to fixed broadband to access the first charging policy of determination Equipment 2.

Mode two

"Policy and Charging Rules Function entity 1 obtains charging policy from 3GPP aaa servers.Set in fixed broadband access Before standby 2 receive the charging policy provided, "Policy and Charging Rules Function entity 1 obtains second that 3GPP aaa servers provide Charging policy；"Policy and Charging Rules Function entity 1 can connect according to the second charging policy of acquisition, decision-making for fixed broadband The first charging policy to network, fixed broadband access device 2 is supplied to by the first charging policy of determination.

"Policy and Charging Rules Function entity 1 can by different modes, obtain that 3GPP aaa servers provide the Two charging policy.Specifically, can be realized by following four mode.

1) in user equipment and the packet data gateway of evolution (ePDG establishes IPSec) tunneling process, 3GPP AAA clothes Device be engaged in the second charging policy of packet data gateway (ePDG) the offer user equipment of evolution, the packet count that ePDG passes through selection According to network gateway (P-GW) the second charging policy is provided to "Policy and Charging Rules Function entity 1.

2) established in user equipment and ePDG in tunneling process, packet data gateway of the 3GPP aaa servers to evolution EPDG provides the second charging policy of user equipment；BBERF positioned at ePDG sends net to "Policy and Charging Rules Function entity 1 Control session establishment message is closed, the gateway control session, which is established in message, carries the second charging policy；Strategy and charging regulation Functional entity 1 obtains gateway control session and establishes the second charging policy carried in message.

3) during user equipment and P-GW establish Security Association, 3GPP aaa servers provide user to P-GW Second charging policy of equipment；P-GW indicates that message carries to "Policy and Charging Rules Function entity 1 by IP-CAN session establishments For the second charging policy.

In a preferred embodiment of the embodiment of the present invention, fixed broadband access device passes through BBF aaa servers And the charge information of 3GPPAAA servers to charge system offer user equipment can include：Fixed broadband access device obtains During the first charging policy, the offload business datums that detect during the business datum of the user or detect the user when, The fixed broadband access device sends metering data to the BBF aaa servers and starts request message, BBF aaa servers The metering data is started into request message and is transmitted to 3GPP aaa servers；The 3GPP aaa servers open the charging Off-line accounting system OFCS or Online Charging System OCS is sent to after the conversion of beginning request message.

In another preferred embodiment of the embodiment of the present invention, the fixed broadband access device passes through Broadband Forum BBF authentication and authorization chargings aaa server and 3GPP aaa servers provide the charge information of the user equipment to charge system, It can also include：When the metering period of first charging policy instruction reaches, the fixed broadband access device passes through institute State BBFAAA servers and send metering data intermediate request message to the 3GPP aaa servers to report charge information, it is described 3GPPAAA servers are sent to the OFCS or described OCS after the metering data intermediate request message is changed.

Further, in order that fixed broadband access device 2 can distinguish UE EPC route data traffic and The data traffic that Offload is accessed, the information that "Policy and Charging Rules Function entity 1 provides to fixed broadband access device 2, also Address information can be included, the address information includes：The local ip address and ePDG IP address of user equipment, or user set Standby local ip address and P-GW addresses；Or in the case where detecting NAPT, address above mentioned information includes：User equipment Local ip address and source UDP port number.

In above-mentioned preferred embodiment, fixed broadband access device 2 can be according to "Policy and Charging Rules Function entity 1 The address information of offer, distinguish the data traffic of the EPC routes of user equipment and the data traffic of Offload access.Therefore, Gu Determine broadband access equipment 2 by BBF aaa servers and 3GPP aaa servers to charge system send charge information when, can be with The charge information of EPC routes and/or the Offload charge information accessed are passed through into BBF aaa servers and described 3GPPAAA servers are sent to the charge system.So that charge system can distinguish user EPC route or The charge information that Offload is accessed.

In a preferred embodiment of the embodiment of the present invention, in order that 3GPP aaa servers can be by this charging Associated with this session, the information that "Policy and Charging Rules Function entity 1 provides to fixed broadband access device 2 also includes： The session identification of certification during the tunnel building or Security Association of user equipment are established.In this case, metering data Start also to carry above-mentioned session identification in request, so that 3GPP aaa servers can be by the charge information of the UE with being somebody's turn to do Session association corresponding to session identification.

In a preferred embodiment of the embodiment of the present invention, in the case where multiple 3GPP aaa servers be present, In order to which accounting start request to be sent to the same 3GPP aaa servers that certification is participated in UE tunnel establishment procedure, strategy Also include with the information that charging regulation function entity 1 provides to fixed broadband access device 2：User equipment tunnel building or Security Association participates in mark or the address of the 3GPP aaa servers of certification during establishing.In this case, fixed broadband Access device provides mark or the address of 3GPP aaa servers to BBF aaa servers, and BBF aaa servers are according to the 3GPP The mark of aaa server or address, charge information is sent to 3GPP aaa servers corresponding to the mark or address.

In a preferred embodiment of the embodiment of the present invention, if user equipment attachment removal or leaving fixed broadband and connecing Network, end charging can be triggered, in a preferred embodiment of the embodiment of the present invention, terminating charging flow can wrap Include：The gateway control session that "Policy and Charging Rules Function entity 1 terminates with BPCF, BPCF judge that gateway control session is the use IP-CAN session terminations flow is initiated after last device-dependent gateway control session of family and notifies fixed broadband access to set The standby user equipment is offline or stops reporting charge information, and fixed broadband access device passes through BBF aaa servers and 3GPP Aaa server notice charge system stops charging.

It is described below by specific embodiment.

Embodiment one

According to embodiments of the present invention, describe and 3GPP cores are accessed by trustless BBF access networks in user equipment (UE) Under heart net, non-roaming scene, charging method of the fixed broadband access network to the Operational Visit of 3GPP user equipmenies.Of the invention real Apply in example, GTP agreements are used between ePDG and P-GW.

Fig. 8 is the flow chart of the offer method of according to embodiments of the present invention one charge information, as shown in figure 8, this method Following steps (step S801- step S824) can be included：

Step S801, UE obtain local ip address from BBF access networks, and the address may be distributed by RG or BNG.

After step S802, UE selection ePDG, IKEv2 tunnel establishment procedures are initiated, and be authenticated using EAP.If UE and There is NA (P) T (NA (P) T on RG being such as present) in ePDG, then IKEv2 signalings are passed through NAT is performed.In tunnel establishment procedure, EPDG can obtain the session identification of the certification and participate in the 3GPP AAA Server of certification mark or address.In addition, 3GPP The charging policy (such as metering period) of the user can also be supplied to ePDG by AAA.

Passed through because IKEv2 signalings may have passed through NA (P) T, therefore, the source address and source port number that ePDG is received can Source address and source port number when can be sent from UE is different.If not passed through by NA (P) T, source address is that UE is being accessed The local address obtained during BBF access networks.

Scene for NA (P) T is not present between UE and ePDG, the source for the IKEv2 signalings that the UE that ePDG is received is sent Address is the local ip address of BBF access networks distribution, and the address can be encapsulated with the unique mark UE by the ipsec tunnel Business data flow.

For having (1 between UE and ePDG:1) NAT scene, the source for the IKEv2 signalings that the UE that ePDG is received is sent Address is the public network IP address after NAT, but due to being 1:1NAT, the address still can be with the unique mark UE by this The business data flow of ipsec tunnel encapsulation.

For (N between UE and ePDG:1) NAT (i.e. NAPT), business data flow need to carry out UDP envelopes in passing through NAT Dress, NAPT can be that the ipsec tunnel distributes source UDP port number (for UE up direction).Therefore for unique mark The business data flow that the UE is encapsulated by the ipsec tunnel, the source for the IKEv2 signalings that the UE at least needing ePDG to receive is sent Location (public network IP address i.e. after BBF access networks NAT, if NAT is located at RG, the address is exactly RG address) and ePDG are received UE send IKEv2 signalings source port number (i.e. IPSec sources UDP port number).

For convenience of description, UE is also referred to as local ip address by NAT IP address.

After step S803, ePDG selection P-GW, sent to P-GW and create conversation request message, creating conversation request message In carry user mark and PDN mark and local ip address and source UDP port number (if detecting NA (P) T).EPDG is same When can be the mark or ground of the session identification of the certification obtained in step S802 and the 3GPP AAA Server for participating in certification Location.In addition, the charging policy that ePDG can also obtain step S802 is sent to P-GW.

Step S804, P-GW are that UE distributes IP address, and sending IP-CAN session establishments to PCRF positioned at P-GW PCEF refers to Show message, user's mark, PDN marks, the IP address for UE distribution, UE sheets are carried in IP-CAN session establishments indicate message Ground IP address and source UDP port number (if detecting NA (P) T).P-GW also can be in tunnel establishment procedure simultaneously, the meeting of certification Words mark and the 3GPP AAA Server of participation certification mark or address.In addition, P-GW can also send charging policy To PCRF.

Step S805, PCRF formulate PCC rules according to subscription data, network strategy and access network attribute etc..Further, PCRF is according to PCC Rulemakings QoS rules.Simultaneously decision-making be used for fixed broadband access network charging policy, as metering period (if P-GW has reported the charging policy that 3GPP AAA server are provided, then PCRF further formulates according to the charging policy).

Step S806, P-GW send renewal P-GW IP address message to 3GPP AAA Server, and P-GW address is sent out 3GPP AAA Server, 3GPP AAA Server are given further to interact with HSS and P-GW address is saved in HSS.

Step S807, P-GW are returned to ePDG and are created session confirmation message, are carried in session confirmation message is created promising The IP address of UE distribution.

Step S808, establishes ipsec tunnel between UE and ePDG.

Step S809, ePDG send the last item IKEv2 signalings to UE, wherein carrying UE IP address.

Step S810, PCRF perform the gateway control session Establishing process that PCRF is initiated, and user's mark, UE are provided to BPCF Local ip address, ePDG IP address, source UDP port number (if detecting NA (P) T), and the QoS rules formulated.If wherein NAPT is detected, then source UDP port number can be only provided, without providing ePDG IP address.

Step S811, BPCF initiate IP-CAN session establishment flows.PCRF is provided for offload Operational Visits to BPCF Strategy, the strategy of the Operational Visit includes charging policy, in such as metering period, and tunnel establishment procedure, the meeting of certification Words mark and the 3GPP AAA Server of participation certification mark or address.

The information such as the strategy obtained from PCRF are further provided to BNG/BRAS by step S812, BPCF.Marked including user Knowledge, UE local ip address, ePDGIP addresses, source UDP port number (if detecting NA (P) T), related QoS control strategies, use In the charging policy of fixed broadband access network, such as metering period, and tunnel establishment procedure, the session identification and ginseng of certification Mark or address with the 3GPP AAA Server of certification.

Step S813, BNG/BRAS identify according to user and/or charging policy judges that a new user accesses, BNG/ BRAS sends metering data to BBF AAA and starts request to establish chargeable session, and user's mark is carried in request message.It is optional Ground, the session identification of certification in tunnel establishment procedure can also be carried in message and participates in the 3GPP AAA Server of certification Mark or address.The mark or address for wherein participating in the 3GPP AAA Server of certification can be used for when in 3GPP networks When multiple AAA Server be present, BBF AAA determine that it is same to participate in the AAA Server of charging and the AAA server of certification It is individual, in order to the management of network billing.

Step S814, BBF AAA sends metering data to 3GPP AAA Server and starts request to establish chargeable session, User's mark is carried in request message.Alternatively, the session identification of certification in tunnel establishment procedure can also be carried in message, its Middle session identification can be used for 3GPP AAA Server and be associated chargeable session and authen session.

Step S815,3GPP AAA Server send metering data to OFCS after transforming the message into and start request or to OCS Prearranged elements are sent to start to ask.

Step S816, OFCS returns to response message to 3GPP AAA Server after preserving information or OCS performs diameter credit control Backward 3GPP AAA Server return to response message.

Step S817,3GPP AAA Server are sent to BBF AAA after transforming the message into.

Step S818, BBF AAA returns to response message to BNG/BRAS.

Step S819, user carries out Operational Visit, and when reaching metering period, BNG/BRAS sends charging to BBF AAA Data intermediate request, metering data, such as flow information are carried in message.BNG/BRAS is according to UE local ip address and ePDGIP Location or UE local ip address and source UDP port number (if detecting NAPT) can distinguish the data traffic of EPC routes.Therefore The flow that flow, the Offload that BNG/BRAS can report EPC to route are accessed, and both total flows.

Step S820, BBF AAA sends metering data intermediate request to 3GPP AAA Server, is carried in request message Metering data, such as flow information.

Step S821,3GPP AAA Server are sent after transforming the message into OFCS metering datas intermediate request or to OCS Prearranged elements renewal request.

Step S822, OFCS returns to response message to 3GPP AAA Server after preserving information or OCS performs diameter credit control Backward 3GPP AAA Server return to response message.

Step S823,3GPP AAA Server are sent to BBF AAA after transforming the message into.

Step S824, BBF AAA returns to response message to BNG/BRAS.

In above-mentioned flow, BNG/BRAS and 3GPP AAA establish chargeable session, and 3GPP AAA and OFCS establishes chargeable session Or built one's credit with OCS and control session.

For the roaming scence shown in Fig. 2 a, Fig. 2 b, ePDG can obtain authen session mark during tunnel building Mark or address with 3GPP AAA Proxy, and the charging policy that 3GPP AAA Server are provided.EPDG can be by charging Strategy by P-GW reports V-PCRF or H-PCRF, and (if reporting V-PCRF, V-PCRF further reports H-PCRF use In decision-making).What H-PCRF was formulated, which be used for the strategy that offload is accessed, is supplied to V-PCRF, and V-PCRF is by charging policy, certification meeting Words mark and 3GPP AAA Proxy mark or address are supplied to BPCF, BPCF to be further provided to BNG/BRAS, BNG/BRAS will report charge information by BBF AAA, 3GPP AAA proxy, 3GPP AAA server to OCS or OFCS.

For Fig. 2 c, Fig. 2 d and Fig. 2 e scene, difference is directly being believed to (v) PCRF by Gxd interfaces by related Breath is supplied to BNG/BRAS.

Embodiment two

According to embodiments of the present invention, describe UE and 3GPP core nets, non-roaming field are accessed by trustless BBF access networks Under scape, charging method of the fixed broadband access network to 3GPP UE Operational Visit.In embodiments of the present invention, ePDG and P-GW Between use PMIPv6 agreements.

Fig. 9 is the flow chart of the offer method of according to embodiments of the present invention two charge information, as shown in figure 9, this method Following steps (step S901- step S915) can be included：

Step S901- steps S902 is identical with step S801- steps S802 in embodiment two.

Step S903, send gateway control session to PCRF positioned at ePDG BBERF and establish message, carry user's mark With PDN marks and local ip address and source UDP port number (if detecting NA (P) T).EPDG simultaneously can be step S902 The session identification of the certification of middle acquisition and the 3GPP AAA Server of participation certification mark or address.In addition, ePDG may be used also P-GW is sent to the charging policy for obtaining step S902.

Step S904, PCRF return to confirmation message to ePDG.

After step S905, ePDG selection P-GW, agent binding update messages are sent to P-GW, in agent binding update messages In carry user mark and PDN mark.

Step S906, P-GW are that UE distributes IP address, and sending IP-CAN session establishments to PCRF positioned at P-GW PCEF refers to Show message, user's mark, PDN marks, the IP address for UE distribution are carried in IP-CAN session establishments indicate message.

Step S907, PCRF according to user mark and PDN mark judge, if without correlation user contracting data, PCRF will interact acquisition signing information with SPR.PCRF formulates PCC according to subscription data, network strategy and access network attribute Rule.Further, PCRF is according to PCC Rulemakings QoS rules.Decision-making simultaneously is used for the charging policy of fixed broadband access network, Such as metering period, (if ePDG has reported the charging policy that 3GPP AAA server are provided, PCRF enters one according to the charging policy Step is formulated).

Step S908, P-GW send renewal P-GW IP address message to AAA Server, and P-GW address is sent to AAA Server, AAA Server are further interacted with HSS and P-GW address are saved in HSS.

Step S909, P-GW return to proxy binding acknowledgment messages to ePDG, are carried in proxy binding acknowledgment messages promising The IP address of UE distribution.

Step S910, agent binding update success, establishes ipsec tunnel between UE and ePDG.

Step S911, ePDG send the last item IKEv2 signalings to UE, wherein, UE IP is carried in IKEv2 signalings Location.

Step S912, PCRF perform the gateway control session Establishing process that PCRF is initiated, and user's mark, UE are provided to BPCF Local ip address, ePDG IP address, source UDP port number (if detecting NA (P) T), and the QoS rules formulated.If wherein NAPT is detected, then source UDP port number can be only provided, without providing ePDGIP addresses.

Step S913, BPCF initiate IP-CAN session establishment flows.PCRF is provided for offload Operational Visits to BPCF Strategy, including charging policy, in such as metering period, and tunnel establishment procedure, the session identification of certification and participation The 3GPP AAA Server of certification mark or address.

The information such as the strategy obtained from PCRF are further provided to BNG/BRAS by step S914, BPCF.Marked including user Knowledge, UE local ip address, ePDGIP addresses, source UDP port number (if detecting NA (P) T), related QoS control strategies, use In the charging policy of fixed broadband access network, such as metering period, and tunnel establishment procedure, the session identification and ginseng of certification Mark or address with the 3GPP AAA Server of certification.

Step S915, perform step S813- steps S824 as shown in Figure 8.

For the roaming scence shown in Fig. 2 a, Fig. 2 b, ePDG can obtain authen session mark during tunnel building Mark or address with 3GPP AAA Proxy, and the charging policy that 3GPP AAA Server are provided.EPDG can be by charging Strategy reports V-PCRF, and V-PCRF further reports H-PCRF and is used for decision-making.What H-PCRF was formulated is used for offload access Strategy be supplied to V-PCRF, V-PCRF is by charging policy, authen session mark and 3GPP AAA Proxy mark or address Be supplied to BPCF, BPCF to be further provided to BNG/BRAS, BNG/BRAS will by BBF AAA, 3GPP AAA proxy, 3GPP AAA server report charge information to OCS or OFCS.

For Fig. 2 c, Fig. 2 d and Fig. 2 e scene, difference is directly being believed to (v) PCRF by Gxd interfaces by related Breath is supplied to BNG/BRAS.

Embodiment three

According to embodiments of the present invention, UE is described by fixed broadband access network, and 3GPP cores are accessed using DSMIPv6 agreements During heart net, charging method of the fixed broadband access network to 3GPP UE Operational Visit.Wherein, fixed broadband access network conduct can Trust non-3 GPP access network.

Figure 10 is the flow chart of the offer method of according to embodiments of the present invention three charge information, as shown in Figure 10, the party Method can include following steps (step S1001- step S1010)：

Step S1001, UE obtain Care-of Address CoA of the local ip address as UE from fixed broadband access network.

Step S1002, UE perform self-starting (Bootstraping) flow.UE has found P-GW, in order to protect UE and P-GW Between DSMIPv6 message, UE establishes Security Association using IKEv2, and is authenticated using EAP.P-GW and AAA Server (AAA Server further interact with HSS) is communicated to complete EAP authentication, while P-GW is that UE distributes an IPv6 address Prefix, UE construct home address (HoA) of the IPv6 addresses as UE according to the prefix.In tunnel establishment procedure, P-GW can be obtained The session identification for obtaining the certification and the 3GPP AAA Server for participating in certification mark or address.In addition, 3GPP AAA Server can return to charging policy to P-GW.

Step S1003, UE send DSMIPv6 binding update messages to P-GW, carry HoA and CoA.

Step S1004, the PCEF positioned at P-GW send IP-CAN session establishments instruction message to PCRF, carry and use in message Family identifies, HoA, UE local address (i.e. CoA) and optional UDP port number (if detecting NAT).P-GW simultaneously can be step The session identification of the certification obtained in rapid S1002 and the 3GPP AAA Server for participating in certification mark or address.In addition, P-GW can provide 3GPP AAA server to PCRF and return to charging policy.

Step S1005, PCRF according to user mark and PDN mark judge, if without correlation user contracting data, PCRF will interact acquisition signing information with SPR.PCRF formulates PCC according to subscription data, network strategy and access network attribute Rule.Further, PCRF is according to PCC Rulemakings QoS rules.Decision-making simultaneously is used for the charging plan of fixed broadband access network Slightly, such as metering period, (if P-GW has reported the charging policy that 3GPP AAA server are provided, PCRF is according to the charging policy Further formulate).

Step S1006, P-GW return to binding acknowledgement message to UE.

Step S1007, PCRF perform the gateway control session Establishing process that PCRF is initiated, to BPCF with providing UE local IP Location, P-GW IP address, source UDP port number (if detecting NA (P) T), and the QoS rules formulated.If wherein detect NAPT, then source UDP port number can be only provided, without providing P-GW IP address.

Step S1008, BPCF initiate IP-CAN session establishment flows.PCRF is provided to BPCF and visited for offload business The strategy asked, including charging policy, in such as metering period, and tunnel establishment procedure, the session identification and ginseng of certification Mark or address with the 3GPP AAA Server of certification.

The information such as the strategy obtained from PCRF are further provided to BNG/BRAS by step S1009, BPCF.Marked including user Knowledge, UE local ip address, P-GWIP addresses, source UDP port number (if detecting NA (P) T), related QoS control strategies, use In the charging policy of fixed broadband access network, such as metering period, and tunnel establishment procedure, the session identification and ginseng of certification Mark or address with the 3GPP AAA Server of certification.

Step S1010, perform step S813- steps S824 as shown in Figure 8.Wherein, BNG/BRAS is according to UE locals IP Address and P-GW IP address or UE local ip address and source UDP port number (if detecting NAPT), EPC routes can be distinguished Data traffic.Therefore, the flow that flow, the Offload that BNG/BRAS can report EPC to route are accessed, and both are total Flow.

For Fig. 2 a roaming scence, P-GW can obtain authen session mark and 3GPP AAA during tunnel building Server mark or address, and the charging policy that 3GPP AAA Server are provided.Charging policy is reported H- by P-GW PCRF is used for decision-making.What H-PCRF was formulated, which be used for the strategy that offload is accessed, is supplied to V-PCRF, V-PCRF by charging policy, Authen session identifies is supplied to BPCF, BPCF to be further provided to BNG/ with 3GPP AAA Server mark or address BRAS, BNG/BRAS will be by BBF AAA, and 3GPP AAA proxy (optional), 3GPP AAA server are on OCS or OFCS Report charge information.

For Fig. 2 b roaming scence, P-GW can obtain authen session mark and 3GPP AAA during tunnel building Proxy mark or address, and the charging policy that 3GPP AAA Server are provided.Charging policy is reported V- by P-GW Charging policy is further reported H-PCRF and is used for decision-making by PCRF, V-PCRF.What H-PCRF was formulated is used for what offload was accessed Strategy is supplied to V-PCRF, V-PCRF to put forward charging policy, authen session mark and 3GPP AAA proxy mark or address Supply BPCF, BPCF is further provided to BNG/BRAS, BNG/BRAS will by BBF AAA, 3GPP AAA proxy, 3GPP AAA server report charge information to OCS or OFCS.

For Fig. 2 c, Fig. 2 d and Fig. 2 e scene, difference is directly being believed to (v) PCRF by Gxd interfaces by related Breath is supplied to BNG/BRAS.

Example IV

According to embodiments of the present invention, UE is described by fixed broadband access network, and 3GPP cores are accessed using DSMIPv6 agreements During heart net, charging method of the fixed broadband access network to 3GPP UE Operational Visit.Wherein, fixed broadband access network is not as Trusted non-3 GPP access network.

Figure 11 is the flow chart of the offer method of according to embodiments of the present invention four charge information, as shown in figure 11, the party Method can include following steps (step S1101- step S1115)：

Step S1101, UE obtain Care-of Address CoA of the local ip address as UE from fixed broadband access network.

Step S1102, UE initiates IKEv2 tunnel establishment procedures, and is authenticated using EAP.EPDG and AAA Server (AAA Server further interact with HSS) is interacted to complete EAP authentication.In tunnel establishment procedure, ePDG, which can obtain this, to be recognized The session identification of card and the 3GPP AAA Server of participation certification mark or address.In addition, 3GPP AAA server can To return to charging policy to ePDG.

Step S1103, send gateway control session to PCRF positioned at ePDG BBERF and establish message, in gateway control meeting Words, which are established in message, carries user's mark, PDN marks, and local ip address and source UDP port number are (if detect NA (P) T).EPDG simultaneously can be the session identification of the certification obtained in step S1102 and the 3GPP AAA Server of participation certification Mark or address.In addition, ePDG can provide the 3GPP AAA server charging policy returned to PCRF.

Step S1104, PCRF send gateway control session to ePDG and establish confirmation message.

Step S1105, ePDG send the last item IKEv2 message to UE, wherein, IKEv2 message carries promising UE distribution An IP address, Care-of Address (CoA) of the IP address as UE.

Step S1106, establishes ipsec tunnel between UE and ePDG.

Step S1107, UE perform self-starting (Bootstraping) flow.UE carries out dns lookup acquisition according to APN and wanted Access PDN P-GW IP address.In order to protect the DSMIPv6 message between UE and P-GW, UE establishes safety connection using IKEv2 Alliance, and be authenticated using EAP.P-GW is communicated with complete with AAA Server (AAA Server further interact with HSS) Into EAP authentication, while P-GW is that UE distributes the home address (HoA) of an IPv6 address or prefix as UE.

Step S1108, UE send DSMIPv6 binding update messages to P-GW, are carried in DSMIPv6 binding update messages There are a CoA and HoA, lifetime parameter is not zero in binding message.P-GW establishes BindingContext.

PCEF in step S1109, P-GW sends IP-CAN session establishments instruction message, IP-CAN session establishments to PCRF User's mark, PDN marks are carried in instruction message.

Step S1110, PCRF according to user mark and PDN mark judge, if without correlation user contracting data, PCRF will interact acquisition signing information with SPR.PCRF formulates PCC according to subscription data, network strategy and access network attribute Rule.Further, PCRF is according to PCC Rulemakings QoS rules.Decision-making simultaneously is used for the charging plan of fixed broadband access network Slightly, such as metering period, (if ePDG has reported the charging policy that 3GPP AAA server are provided, PCRF is according to the charging policy Further formulate).

Step S1111, P-GW return to binding acknowledgement message to UE.

Step S1112, PCRF perform the gateway control session Establishing process that PCRF is initiated, to BPCF with providing UE local IP Location, ePDG IP address, source UDP port number (if detecting NA (P) T), and the QoS rules formulated.If wherein detect NAPT, then source UDP port number can be only provided, without providing ePDG IP address.

Step S1113, BPCF initiate IP-CAN session establishment flows.PCRF provides to BPCF simultaneously connects for fixed broadband In the charging policy of networking, such as metering period, and tunnel establishment procedure, the session identification of certification and certification is participated in 3GPPAAA Server mark or address.

The information such as the strategy obtained from PCRF are further provided to BNG/BRAS by step S1114, BPCF.Marked including user Knowledge, UE local ip address, ePDG IP address, source UDP port number (if detecting NA (P) T), related QoS control strategies, For the charging policy of fixed broadband access network, in such as metering period, and tunnel establishment procedure, the session identification of certification and Participate in the 3GPP AAA Server of certification mark or address.

Step S1115, perform step S813- steps S824 as shown in Figure 8.

For the roaming scence shown in Fig. 2 a, Fig. 2 b, ePDG can obtain authen session mark during tunnel building Mark or address with 3GPP AAA Proxy, and the charging policy that 3GPP AAA Server are provided.EPDG can be by charging Strategy reports V-PCRF, and V-PCRF further reports H-PCRF and is used for decision-making.What H-PCRF was formulated is used for offload access Strategy be supplied to V-PCRF, V-PCRF is by charging policy, authen session mark and 3GPP AAA Proxy mark or address Be supplied to BPCF, BPCF to be further provided to BNG/BRAS, BNG/BRAS will by BBF AAA, 3GPP AAA proxy, 3GPP AAA server report charge information to OCS or OFCS.

For Fig. 2 c, Fig. 2 d and Fig. 2 e scene, difference is directly being believed to (v) PCRF by Gxd interfaces by related Breath is supplied to BNG/BRAS.

In all of above embodiment, when BNG/BRAS obtains the charging policy that PCRF is issued, BNG/BRAS is to BBF AAA sends metering data and starts request message.In other embodiments, when BNG/BRAS detects first data of the user Wrap (all charge informations that now BNG/BRAS reports the user) or first offload business data packet of the user (now BNG/BRAS only reports the charge information of offload business) sends metering data to BBF AAA and starts to ask.

Embodiment five

According to embodiments of the present invention, UE is described using embodiment one to the flow of example IV, is connect by fixed broadband Network after access EPC, when UE attachment removals or UE leave the covering of fixed broadband access network, terminate the method for charging.Wherein, it is fixed wide Band access network can be trustless non-3 GPP access network or trusted non-3 GPP access network.

Figure 12 is the flow chart of the method for according to embodiments of the present invention five end charging, and as shown in figure 12, this method can With including following steps (step S1201- step S1210)：

Step S1201, PCRF receive triggering, UE one PDN connection of termination.The triggering is from P-GW IP- CAN session terminations are asked or the termination request of ePDG gateway control session.

Step S1202, PCRF initiate gateway control session termination flow to BPCF.

The gateway control session that step S1203, BPCF judgment step 1202 terminates is last related gateway of the UE When controlling session, BPCF initiates IP-CAN session termination flows.

Step S1204, the BPCF notice BNG/BRAS users are offline or notice BNG/BRAS stops reporting charge information. Can be that termination deletes the policy control session established between BNG/BRAS and BPCF for the user in practical application.

Step S1205, BNG/BRAS send metering data to BBF AAA and stop request with the chargeable session that terminates, and carry most The charge information of the user since closely once reporting.

Step S1206, BBF AAA sends metering data to 3GPP AAA Server and stops request, and metering data stops please Ask.

Step S1207,3GPP AAA Server transform the message into after to OFCS send metering data stop request or to OCS sends Prearranged elements and stops request.

Step S1208, OFCS returns to response message to 3GPP AAA Server after preserving information or OCS performs credit control Make backward 3GPP AAA server and return to response message.

Step S1209,3GPP AAA Server are sent to BBF AAA after transforming the message into.

Step S1210, BBF AAA returns to response message to BNG/BRAS.

As can be seen from the above description, the present invention realizes following technique effect：Fixed broadband access device receives The first charging policy that "Policy and Charging Rules Function entity provides after the session establishment of user equipment is confirmed；Fixed broadband connects Enter equipment according to the first charging policy received, pass through Broadband Forum BBF authentication and authorization chargings aaa server and 3GPP AAA Server provides the charge information of the user equipment to charge system, realizes fixed network and mobile network is merged under scene Charge information offer.Meanwhile the information that "Policy and Charging Rules Function entity provides to fixed broadband access device, also wrap Include address information, fixed broadband access device according to address information, can distinguish the EPC routes of user equipment data traffic and The data traffic that Offload is accessed.The number that fixed broadband access device accesses the EPC data traffics routeing and/or Offload Carried according to flow in metering data intermediate request, send to charge system, realize the meter respectively to two kinds of access service flows Take.

Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and formed Network on, alternatively, they can be realized with the program code that computing device can perform, it is thus possible to they are stored Performed in the storage device by computing device, and in some cases, can be with different from shown in order execution herein The step of going out or describing, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.

The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims (16)

1. a kind of offer method of charge information, it is characterised in that including：

Fixed broadband access device receives the first charging policy that "Policy and Charging Rules Function entity PCRF is provided；

The fixed broadband access device is taken according to first charging policy by Broadband Forum BBF authentication and authorization chargings AAA Business device and 3GPP aaa servers provide the charge information of user equipment to charge system；

Wherein, the fixed broadband access device is taken by Broadband Forum BBF authentication and authorization chargings aaa server and 3GPP AAA Device be engaged in the charge information of the charge system offer user equipment, including：

When the fixed broadband access device obtains first charging policy, when detecting the business datum of the user or inspection When measuring the unloading offload business datums of the user, the fixed broadband access device is sent out to the BBF aaa servers Metering data is sent to start request message；The metering data is started request message and is transmitted to 3GPP by the BBF aaa servers Aaa server；The 3GPP aaa servers are sent to the charge system after the charging start request message is changed；Or Person,

When the metering period of first charging policy instruction reaches, the fixed broadband access device passes through the BBF Aaa server sends metering data intermediate request message to report charge information, the 3GPP to the 3GPP aaa servers Aaa server is sent to the charge system after the metering data intermediate request message is changed.

2. according to the method for claim 1, it is characterised in that receive the PCRF in the fixed broadband access device and carry Before the first charging policy supplied, methods described also includes：

The PCRF decision-makings are used for first charging policy of fixed broadband access network, and first charging policy is supplied to The fixed broadband access device.

3. according to the method for claim 1, it is characterised in that receive the PCRF in the fixed broadband access device and carry Before the charging policy of confession, methods described also includes：

The PCRF obtains the second charging policy that the 3GPP aaa servers provide；

The PCRF is used for first charging policy of fixed broadband access network according to second charging policy, decision-making, will First charging policy is supplied to the fixed broadband access device.

4. according to the method for claim 3, it is characterised in that the PCRF obtains what the 3GPP aaa servers provided Second charging policy, including：

During the packet data gateway ePDG of the user equipment and evolution establishes IP layer security protocol ipsec tunnels, institute State second charging policy that 3GPP aaa servers provide the user equipment to the ePDG；

The ePDG provides second charging policy by the grouped data network gateway P-GW of selection to the PCRF.

5. according to the method for claim 3, it is characterised in that the PCRF obtains what the 3GPP aaa servers provided Second charging policy, including：

Established in the user equipment and ePDG in tunneling process, the 3GPP aaa servers provide the use to the ePDG Second charging policy of family equipment；

Gateway control session is sent positioned at the bearing binding and event reporting function entity B BERF of the ePDG to the PCRF to build Vertical message, wherein, the gateway control session, which is established in message, carries second charging policy.

6. according to the method for claim 3, it is characterised in that the PCRF obtains what the 3GPP aaa servers provided Second charging policy, including：

During the user equipment and P-GW establish Security Association, the 3GPP aaa servers provide to the P-GW Second charging policy of the user equipment；

The P-GW indicates that message provides second charging policy to the PCRF by IP-CAN session establishments.

7. according to the method for claim 1, it is characterised in that

The information that the PCRF provides to the fixed broadband access device also includes：Address information, wherein, the address information Including：The local ip address and ePDG IP address of the user equipment, or, the local ip address and P-GW of the user equipment Address；

Or in the case where detecting NAPT, the address information includes：The local ip address of the user equipment and source UDP port number.

8. according to the method for claim 7, it is characterised in that the fixed broadband access device passes through Broadband Forum BBF Authentication and authorization charging aaa server and 3GPP aaa servers provide the charge information of the user equipment, bag to charge system Include：

The fixed broadband access device distinguishes the packet-based core networks EPC of the evolution of the user equipment according to the address information The data and unloading Offload data of route；

The fixed broadband access device passes through the charge information of the EPC charge informations routeing and/or Offload described BBF aaa servers and the 3GPP aaa servers are sent to the charge system.

9. according to the method for claim 1, it is characterised in that

The information that the PCRF provides to the fixed broadband access device also includes：The user equipment tunnel building or The session identification of certification during Security Association is established；

The metering data starts also to carry the session identification in request.

10. according to the method for claim 1, it is characterised in that

The information that the PCRF provides to the fixed broadband access device also includes：The user equipment tunnel building or Security Association participates in mark or the address of the 3GPP aaa servers of certification during establishing；

The fixed broadband access device is by the BBF aaa servers and the 3GPP aaa servers to the charging system System provides the charge information of the user equipment, including：

The fixed broadband access device provides the mark or ground of the 3GPP aaa servers to the BBF aaa servers Location；

Mark or address of the BBF aaa servers according to the 3GPP aaa servers, to the 3GPP aaa servers Send the charge information.

11. according to the method for claim 1, methods described also includes：

The PCRF terminations and broadband policy control framework BPCF gateway control session, the BPCF judge the gateway control Session is to initiate IP-CAN session terminations flow after last related gateway control session of the user equipment and notify institute State user equipment described in fixed broadband access device offline or stop reporting the charge information；

The fixed broadband access device notifies the charging by the BBF aaa servers and the 3GPP aaa servers System stops charging.

A kind of 12. offer device of charge information, positioned at fixed-bandwidth access device side, it is characterised in that described device includes：

Receiving module, for receiving the first charging policy of "Policy and Charging Rules Function entity PCRF offers；

Module is provided, for according to first charging policy, by Broadband Forum BBF authentication and authorization chargings aaa server and 3GPP aaa servers provide the charge information of user equipment to charge system；

Wherein, the offer module includes at least one of：

First sending module, during for obtaining first charging policy, when detecting the business datum of the user or detection To the user offload business datums when, by the BBF aaa servers to the 3GPP aaa servers send count Expense data start request message, will be sent to by the 3GPP aaa servers the metering data after request message conversion The charge system；

Second sending module, when the metering period for being indicated when first charging policy reaches, taken by the BBF AAA Business device sends metering data intermediate request to report charge information to the 3GPP aaa servers, is serviced by the 3GPP AAA Device is sent to the charge system after the metering data intermediate request is changed；

3rd sending module, for offline or when stopping reporting the advice of charge information when receiving the user equipment, lead to Cross the BBF aaa servers and the 3GPP aaa servers notify the charge system to stop charging.

13. device according to claim 12, it is characterised in that

The information that the PCRF provides to the fixed broadband access device also includes：Address information, wherein, the address information Including：The local ip address and ePDG IP address of the user equipment, or, the local ip address and P-GW of the user equipment Address；Or in the case where detecting NAPT, the address information includes：The local ip address of the user equipment and source UDP port number；

Described device also includes：Discriminating module, the packet of the evolution for distinguishing the user equipment according to the address information The data traffic that the data traffic and unloading Offload of core net EPC routes access；

The offer module is used to the charge information of the EPC charge informations routeing and/or Offload passing through the BBF Aaa server and the 3GPP aaa servers are sent to the charge system.

14. device according to claim 12, it is characterised in that

The information that the PCRF is provided also includes：Participated in during the tunnel building or Security Association of the user equipment are established The mark of the 3GPP aaa servers of certification or address；

The module that provides is additionally operable to the mark of the 3GPP aaa servers of the participation certification or address being supplied to institute State BBF aaa servers.

A kind of 15. offer system of charge information, it is characterised in that including：

"Policy and Charging Rules Function entity PCRF, for providing the first charging policy to fixed broadband access device；

The fixed broadband access device, including the device any one of claim 12 to 14, for according to described One charging policy, provided by Broadband Forum BBF authentication and authorization chargings aaa server and 3GPP aaa servers to charge system The charge information of the user equipment.

16. system according to claim 15, it is characterised in that the PCRF includes：

Acquisition module, the second charging policy provided for obtaining the 3GPP aaa servers；

Decision-making module, for being used for the first charging plan of fixed broadband access network according to second charging policy, decision-making Slightly；

Module is provided, for first charging policy to be supplied into the fixed broadband access device.