CN101272534A - Policy charging control method for concealing visited place network topological structure - Google Patents
Policy charging control method for concealing visited place network topological structure Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
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- H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
- H04L12/1428—Invoice generation, e.g. customization, lay-out, database processing, algorithms for calculating the bill or formatting invoices as WWW pages
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Abstract
A method for controlling the strategic charging of a topology structure which hides visit place network is applied to a 3GPP evolutionary grouping system. The method includes: in the IP accessing network of user equipment, namely an IP-CAN conversation modification process and after visit network strategy and charging rules function vPCRF receives a gateway control conversation message which is sent by bearing binding and event reporting function BBERF, the interaction between the IP-CAN conversation message and the vPCRF is adopted to obtain the strategy which is rearranged by home network strategy and charging rules function hPCRF and charging control PCC rules and control and send conversation messages to the BBERF through a gateway. The method of the invention enables the topology structure of the visit place network to hide the network. At the same time, a S9 interface only supports the protocol which is supported by a Gx interface. Then, the S9 interface is simplified.
Description
Technical field
The present invention relates to the method for the policy and charging control of a kind of concealing visited place network topological structure in the wireless network.
Background technology
Grouping system (the EPS of 3GPP evolution, Evolved Packet System) by the UTRAN (E-UTRAN of evolution, Evolved Universal Terrestrial Radio Access Network), MME (mobile management unit, Mobility Management Entity), S-GW (gateway, ServingGateway), PDN GW (P-GW, Packet Data Network GateWay, data network gateway), HSS (home subscriber server, Home Subscriber Server), 3GPP aaa server (3GPP authentication and authorization charging server), PCRF (Policy and Charging Rules Function, "Policy and Charging Rules Function), reaching other support nodes forms.Wherein MME is responsible for the processing of mobile management, Non-Access Stratum signaling, user's chain of command related works such as the contextual management of mobile management; S-GW is the accessing gateway equipment that links to each other with E-UTRAN, transmits data between E-UTRAN and PDN GW, and is responsible for pending datas such as paging are carried out buffer memory.P-GW then is the grouping system (EPS, Evolved Packet System) of 3GPP evolution and the borde gateway of PDN (Packet Data Network) network, is responsible for the access of PDN, transmits function such as data between EPS and PDN.PCRF is the "Policy and Charging Rules Function entity, and it obtains business information by Rx interface and operator's IP operation network interface, it links to each other another side with gateway device in the network by Gx/Gxa/Gxc, be responsible for initiating the foundation of IP carrying, guarantee the QoS of business datum, and the control of chargeing.
EPS supports the intercommunication with non-3GPP network.Realize that by the S2a/b/c interface P-GW is as 3GPP and the internetwork anchor point of non-3GPP with the intercommunication of non-3GPP network.The system architecture diagram of EPS as shown in Figure 1.Wherein non-3 GPP system is divided into the non-3GPP IP access of trusted and trustless non-3GPP IP access.The non-3GPP IP of trusted inserts can be directly by S2a and P-GW interface; Trustless non-3GPP IP inserts to be needed to link to each other with P-GW through ePDG (Evolved Packet Data Gateway, the data gateway of evolution), and the interface between ePDG and P-GW is S2b.
In the 3GPP network before EPS, strategy and charge execution function (PCEF, Policy andcharging enforcement function) exists only among the P-GW, PCRF passes through Gx interface (see figure 1) exchange message as long as can finish policy and charging control with the P-GW interface between PCRF and P-GW.But, in the EPS system, when the interface between P-GW and S-GW during based on PMIPv6, because the limitation of PMIPv6 agreement, can not the transmission policy charging control information, the partial function of PCEF, for example function such as bearing binding and event report has been moved among the S-GW, is called bearing binding and event reporting function (BBERF, Bearer Binding and Event Reporting Function), pass through Gxc interface (see figure 1) exchange message between S-GW and the PCRF.When intercommunication inserts between the non-3GPP connecting system of trusted is by S2a and 3GPP system, the also resident BBERF in the trusted non-3 GPP access network Central Shanxi Plain (as Fig. 1), it is by Gxa interface and PCRF exchange message.When UE roamed, the S9 interface was as the interface of home network PCRF and access zone network PCRF.For providing professional AF (Application Function, application function), UE sends the business information that is used to formulate PCC (Policy and Charging Control, the strategy and the control of chargeing) strategy to PCRF simultaneously by Rx interface.Gx, Gxa, Gxc and Rx interface all adopt Diameter.
Above PCEF, BEERF, vPCRF, hPCRF etc. can be considered functional module or entity.
When the user roams into visit ground, can use local route (Home Routed) or local break-out (LBO, Local BreakOut) dual mode to insert the PDN network.Adopt the mode of Home Routed, the user uses the P-GW of home network to insert PDN network (as shown in Figure 2); Adopt the LBO mode, the user uses the P-GW on visit ground to insert PDN network (as shown in Figure 3).When UE adopted Home Routed mode to roam, the BBERF that is positioned at access zone network was undertaken by vPCRF (visit PCRF) and hPCRF (home PCRF) alternately.When UE adopted the LBO mode to roam, the operator of access zone network wished to hide the network topology structure of oneself, and promptly the BBERF of access zone network is sightless for hPCRF.VPCRF the mutual of BBERF and hPCRF that can terminate, and only transmit access zone network PCEF and hPCRF alternately.Under the roaming scence of LBO, UE inserts by E-UTRAN, S-GW and P-GW adopt PMIPv6 agreement or UE to close by the trusted non-3 GPP access network, and when adopting the PMIPv6 agreement to insert, concealing visited place network topological structure was an an open question still when specifically how implementation strategy chargeed control.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method of policy and charging control of concealing visited place network topological structure, make access zone network can hide topology of networks, the S9 interface has been simplified the S9 interface as long as support the agreement that the Gx interface is supported simultaneously.
In order to address the above problem, the invention provides a kind of method of policy and charging control of concealing visited place network topological structure, be applied to the grouping system of 3GPP evolution, comprising:
Connecting Access Network at the IP of described subscriber equipment is in the IP-CAN session modification flow process, after described access zone network "Policy and Charging Rules Function vPCRF receives the gateway control session message of bearing binding and event reporting function BBERF transmission, adopt IP-CAN conversation message and described vPCRF mutual, obtain strategy that home network "Policy and Charging Rules Function hPCRF reformulates and charging control PCC rule and be handed down to described BBERF by gateway control session message.
Further, said method also can comprise following characteristics:
In the IP-CAN of described subscriber equipment session foundation or session modification flow process, described vPCRF preserves the event trigger that described hPCRF issues; Described vPCRF judges whether that the incident that described event trigger is described takes place after receiving the gateway control session message that described BBERF sends, if any, adopt IP-CAN conversation message and described hPCRF mutual.
Further, said method also can comprise following characteristics:
In the IP-CAN of described subscriber equipment session modification flow process, described vPCRF receives the IP-CAN conversation message that strategy and charge execution function PCEF send;
Described vPCRF judges whether that the incident that described event trigger is described takes place, if any, adopt IP-CAN conversation message and described hPCRF mutual, it is regular and be handed down to described PCEF by IP-CAN message to obtain PCC that described hPCRF reformulates.
Further, said method also can comprise following characteristics:
Described BBERF resides on the gateway S-GW, and described subscriber equipment inserts the grouping system of described 3GPP evolution with the roam mode of local break-out by the UTRAN of evolution, and adopts the PMIPv6 agreement between described S-GW and the data network gateway P-GW; Perhaps
Described BBERF resides in the trusted non-3 GPP access network and shuts, and described subscriber equipment adopts the PMIPv6 agreement to insert the grouping system of described 3GPP evolution with the roam mode of local break-out.
Further, said method also can comprise following characteristics:
Set up in the process in described IP-CAN session, resident have the S-GW of described BBERF or trusted non-3 GPP access network to close the event trigger that the described vPCRF of installation issues;
Described IP-CAN session modification flow process is initiated owing to BBERF switches, and this flow process comprises:
Resident purpose S-GW that this BBERF arranged or trusted non-3 GPP access network close receive set up the gateway control session request message after, send gateway control session to described vPCRF and set up Indication message;
After described vPCRF receives that gateway control session is set up Indication message, described gateway control session is associated with the IP-CAN session of setting up before, directly send the indication of IP-CAN session modification or when the incident that judgement has described event trigger to describe takes place, send the indication of IP-CAN session modification, carry the event report and the affected PCC rule that change to described hPCRF to described hPCRF;
Described hPCRF reformulates the PCC rule according to the information of carrying in the IP-CAN session modification Indication message, sends to described vPCRF by IP-CAN session modification acknowledge message;
Described vPCRF reformulates the QoS rule according to the PCC rule, and sets up acknowledge message by gateway control session and send to described purpose S-GW or trusted non-3 GPP access network and close;
Described purpose S-GW or trusted non-3 GPP access network close installs new QoS rule.
Further, said method also can comprise following characteristics: described IP-CAN session modification flow process also comprises:
Described purpose S-GW or trusted non-3 GPP access network close receive set up the gateway control session request message after, also send and set up the IP-CAN conversation request message to the described P-GW of the resident PCEF of having, carry the sign of the PDN that user ID and user will insert;
Described P-GW sends the indication of IP-CAN session modification to described vPCRF;
The incident of describing in the event trigger that described vPCRF such as judgement have hPCRF to issue takes place, and sends IP-CAN session modification Indication message to described hPCRF, carries the event report and the affected PCC rule that change;
Described hPCRF reformulates the PCC rule according to the information of described event report, sends to vPCRF by IP-CAN session modification acknowledge message;
Described vPCRF by strategy and charging regulation give information to described P-GW send described PCC regular or make amendment according to the PCC rule that local policy issues hPCRF after the PCC rule;
Described P-GW installs the PCC rule that issues, and sets up the IP-CAN session response message to purpose S-GW or the transmission of trusted non-3 GPP access network pass, and provides affirmation to described vPCRF transmission strategy and charging regulation;
Described purpose S-GW or trusted non-3 GPP access network close to be received after the IP-CAN session response message to return to the transmit leg of setting up the gateway control session request message and sets up the gateway control session response message.
Further, said method also can comprise following characteristics:
After described vPCRF receives the PCC rule that described hPCRF issues by IP-CAN session modification acknowledge message, judge whether that also to set up the PCC rule that acknowledge message issues by gateway control session identical with described hPCRF, if change, then the PCC rule that issues according to IP-CAN session modification acknowledge message is reformulated the QoS rule, gives information by gateway control and QoS rule and closes to described S-GW or trusted non-3 GPP access network the QoS rule downloading after upgrading;
Described S-GW or trusted non-3 GPP access network close receives that gateway control and the QoS rule back that gives information installs wherein QoS rule, returns gateway control and the QoS rule provides acknowledge message to described vPCRF.
Further, said method also can comprise following characteristics: in the described IP-CAN session modification flow process, also comprise:
After described source S-GW or trusted non-3 GPP access network close and receive the request of deletion gateway control session, carry the sign of the PDN that user ID and user will insert in the message;
Described source S-GW or trusted non-3 GPP access network close to described vPCRF and send gateway control session termination Indication message, carry the data network sign that user ID and user will insert in the message;
Described vPCRF deletes old gateway control session according to described user ID and data network sign;
Described source S-GW or trusted non-3 GPP access network close QoS rule and event trigger deletion that gateway control session is relevant, and the transmit leg that disappears to the request of deletion gateway control session returns and deletes gateway control session and reply then.
Further, said method also can comprise following characteristics:
Set up in the process in described IP-CAN session, resident have the S-GW of described BBERF or trusted non-3 GPP access network to close the event trigger that the described vPCRF of installation issues;
Described IP-CAN session modification flow process is because resource that the user please look for novelty or release resource are initiated, and further comprises:
Resident have the S-GW of described BBERF or trusted non-3 GPP access network pass to receive gateway control session modification message, judging has the incident of described event trigger definition to take place, send gateway control and QoS rule request message to described vPCRF, carry the event report and the affected PCC rule that change;
Described vPCRF sends IP-CAN session modification Indication message to described hPCRF, carries the event report and the affected PCC rule that change;
Described hPCRF reformulates the PCC rule according to the information of described event report, sends to described vPCRF by IP-CAN session modification acknowledge message;
Described vPCRF sends to described S-GW or trusted non-3 GPP access network pass according to the PCC Rulemaking QoS rule that issues by gateway control and QoS rule response message;
Described S-GW or trusted non-3 GPP access network close when judgement Qos rule is new, this Qos rule is installed, return gateway control and the QoS rule is replied acknowledge message to described vPCRF, and return gateway control session to the transmit leg that gateway control session is revised message and revise response message;
The PCC rule that described vPCRF also issues described hPCRF gives information by strategy and charging regulation and is handed down to P-GW, and described P-GW installs described PCC rule, and provides affirmation to described vPCRF transmission strategy and charging regulation.
Further, said method also can comprise following characteristics:
Described IP-CAN session modification flow process is initiated owing to business information or user signing contract information change, and further comprises:
Described hPCRF carries out strategic decision-making and mandate after receiving business information or user signing contract information, reformulates the PCC rule, and giving information by strategy and charging regulation sends to described vPCRF;
Described vPCRF reformulates the QoS rule according to the PCC rule that issues, and gives information by gateway control and QoS rule and the QoS rule to be sent to S-GW or the trusted non-3 GPP access network closes, and giving information by strategy and charging regulation sends to P-GW;
Described S-GW or the described QoS rule of trusted non-3 GPP access network pass installation are returned gateway control and the QoS rule provides acknowledge message; Described P-GW installs described PCC rule, returns strategy and charging regulation acknowledge message is provided;
Described vPCRF to described hPCRF return the strategy and charging regulation acknowledge message is provided.
Further, said method also can comprise following characteristics:
Described hPCRF goes back the update event trigger when reformulating the PCC rule, and is handed down to described vPCRF together with the described PCC rule of reformulating;
Described vPCRF also is handed down to described P-GW together with event trigger after the described renewal and PCC rule, and S-GW or trusted non-3 GPP access network pass;
Described P-GW, and S-GW or trusted non-3 GPP access network are installed after closing the event trigger of receiving after the described renewal.
In order to solve the problems of the technologies described above, the present invention provides a kind of method of policy and charging control of concealing visited place network topological structure again, is applied to IP connection Access Network IP-CAN session and sets up process, comprising:
Set up in the process in the IP-CAN session, resident S-GW that bearing binding and event reporting function BBERF arranged or trusted non-3 GPP access network close by gateway control message and access zone network "Policy and Charging Rules Function vPCRF mutual, and QoS rule and event trigger that it issues are installed;
And, after described S-GW or trusted non-3 GPP access network close and select the resident data network gateway P-GW that strategy and charge execution function PCEF arranged, set up the IP-CAN conversation request message to the P-GW transmission, described P-GW obtains strategy and charging control PCC rule and event trigger or regular and event trigger and the installation through the amended PCC of described vPCRF that home network "Policy and Charging Rules Function hPCRF formulates by the IP-CAN conversation message by described vPCRF.
Further, said method also can comprise following characteristics: described IP-CAN session is set up process and be may further comprise the steps:
After the S-GW of the resident BBERF of having or trusted non-3 GPP access network pass receive and set up the gateway control session request message, select P-GW, and send gateway control to described vPCRF and set up Indication message, carry the data network sign that user ID and user will insert and the indication information of roam mode;
Described vPCRF judges that according to described indication information the user has adopted the roaming mode of local break-out, and when not having the IP-CAN session between vPCRF and the hPCRF, for QoS rule and event trigger are formulated in this session, set up acknowledge message by gateway control session and send to described S-GW or trusted non-3 GPP access network pass;
Described S-GW or trusted non-3 GPP access network close installs QoS rule and event trigger;
Described S-GW or trusted non-3 GPP access network close to the P-GW of the resident PCEF of having that selects transmission sets up the IP-CAN conversation request message, carries the data network sign that user ID and user will insert;
Described P-GW sends the IP-CAN session to vPCRF and sets up Indication message, carries the data network sign that user ID and user will insert;
Described vPCRF is associated described IP-CAN session and gateway control according to the data network sign that user ID and user will insert, and sends the IP-CAN session to described hPCRF and set up Indication message;
Described hPCRF formulates PCC rule and event trigger for this session, sets up acknowledge message by the IP-CAN session and sends to described vPCRF;
Described vPCRF sends the IP-CAN session to described P-GW and sets up acknowledge message, carry the PCC rule that issues and event trigger or through the amended PCC of described vPCRF regular and event trigger make amendment;
Described P-GW installs PCC rule and event trigger, closes to return to described S-GW or trusted non-3 GPP access network then and sets up the IP-CAN session response message;
Described S-GW or trusted non-3 GPP access network pass are returned to the transmit leg of setting up the gateway control session request and are set up the gateway control session response message.
Further, said method also can comprise following characteristics:
Described vPCRF also reformulates QoS rule and event trigger according to PCC rule and event trigger that described hPCRF issues, if different, then give information new QoS rule and/or event trigger are handed down to described S-GW or trusted non-3 GPP access network pass by gateway control and QoS rule with the QoS rule and/or the event trigger that are handed down to described S-GW or trusted non-3 GPP access network pass before;
Described S-GW or trusted non-3 GPP access network close installs new QoS rule and event trigger, returns gateway control and the QoS rule provides acknowledge message to vPCRF then.
Further, said method also can comprise following characteristics:
The subscriber equipment of initiating described session inserts the grouping system of described 3GPP evolution with the roam mode of local break-out by the UTRAN of evolution, and adopts the PMIPv6 agreement between described S-GW and the data network gateway P-GW; The subscriber equipment of perhaps initiating described session adopts the PMIPv6 agreement to insert the grouping system of described 3GPP evolution with the roam mode of local break-out.
In order to solve the problems of the technologies described above, the present invention also provides a kind of method of policy and charging control of concealing visited place network topological structure, is applied to IP and connects Access Network session termination flow process, comprising:
Resident gateway S-GW that bearing binding and event reporting function BBERF arranged or trusted non-3 GPP access network close and receive deletion IP to be connected Access Network be the IP-CAN conversation request message, carry the data network that user ID and user will insert and identify;
Described S-GW or trusted non-3 GPP access network close according to user ID will insert relevant QoS rule and the event trigger of data network sign deletion with the user, and to access zone network "Policy and Charging Rules Function vPCRF transmission gateway control session ending message, relevant QoS rule and the event trigger of described vPCRF deletion, and return gateway control session termination acknowledge message;
Described S-GW or trusted non-3 GPP access network close to described P-GW and send deletion IP-CAN conversation request message, carry the data network sign that user ID and user will insert in the message; Described P-GW sends the indication of IP-CAN session termination according to the sign of the PDN that user ID and user will insert to described vPCRF, and deletion local relevant PCC rule and event trigger;
Relevant PCC rule and the event trigger of described vPCRF deletion, and to the indication of home network "Policy and Charging Rules Function hPCRF transmission IP-CAN session termination;
Relevant PCC rule and the event trigger of described hPCRF deletion, and return the IP-CAN session termination to vPCRF and confirm, returning the IP-CAN session termination to described P-GW after described vPCRF receives confirms, after described P-GW receives, close to S-GW or trusted non-3 GPP access network and to return deletion IP-CAN session and reply;
Described S-GW or trusted non-3 GPP access network pass are returned deletion IP-CAN session to deletion IP-CAN session and are replied.
Compared with prior art, the invention enables access zone network can hide topology of networks, the S9 interface has been simplified the S9 interface as long as support the agreement that the Gx interface is supported simultaneously.
Description of drawings
Fig. 1 is the non-roaming Organization Chart of EPS in the prior art;
Fig. 2 is the roaming Organization Chart that UE adopts Home Routed in the prior art;
Fig. 3 is the roaming Organization Chart that UE adopts LBO in the prior art;
Fig. 4 is a flow chart of setting up the IP-CAN session in the embodiment of the invention;
Fig. 5 is a flow chart of revising the IP-CAN session in the embodiment of the invention;
Fig. 6 is a flow chart of revising the IP-CAN session in the embodiment of the invention;
Fig. 7 is a flow chart of revising the IP-CAN session in the embodiment of the invention;
Fig. 8 is the flow chart of termination IP-CAN session in the embodiment of the invention.
Embodiment
The present invention is in order to solve the drawback that conventional solution exists, further set forth the method for the policy and charging control of a kind of concealing visited place network topological structure of the present invention by following specific embodiment, below embodiment is described in detail, but not as a limitation of the invention.
What present embodiment was described is to be under the local break-out roaming scence as UE, and flow chart was set up in the IP-CAN session when UE adopted the PMIPv6 agreement to insert by adopting PMIPv6 agreement or UE between E-UTRAN access and S-GW and the P-GW by the trusted non-3 GPP access network.Present embodiment as shown in Figure 4, each step is described below:
401, the S-GW of the resident BBERF of having or trusted non-3 GPP access network close to receive and set up the gateway control session request message.When inserting by E-UTRAN, this message is that the default bearing that MME sends is set up request message, and when closing access by the trusted non-3 GPP access network, the layer 3 in this message trusted non-3 GPP access network adheres to message.Carry user ID in the message, as NAI (NetworkAccess Identifier, network access Identifier)) and the sign of the user PDN that will insert, as APN (Access Point Name, Access Point Name);
402, S-GW or trusted non-3 GPP access network close the P-GW that has selected access zone network, and promptly the user adopts the roaming mode of local break-out.Resident BBERF wherein sends the gateway control request message to access zone network vPCRF, carries sign and the LBO indication of the PDN that user ID and user will insert in the message;
When specific implementation, LBO indication can be the ID of P-GW place network, vPCRF the ID of own place network and LBO can be indicated with the ID of P-GW place network compare.If identical, the user has adopted the roaming mode of LBO, if inequality, the user has adopted the roaming mode of Home Routed.Also can compare herein and judge the roaming mode, also can finish,, not influence the present invention program's execution for the selection of judging the roaming mode herein by other modes without ID among the LBO.
403, vPCRF has adopted the roaming mode of LBO according to LBO indication judgement user, and there is not the IP-CAN session between vPCRF and the hPCRF, therefore vPCRF will be according to this policy development QoS rule and event trigger, and sets up acknowledge message by gateway control session and send to BBERF; S-GW or trusted non-3 GPP access network close installs QoS rule and event trigger;
404, S-GW or trusted non-3 GPP access network close receive set up the gateway control session request message after, send to the P-GW of the resident PCEF of having and to set up the IP-CAN conversation request message, carry the sign of the PDN that user ID and user will insert in the message;
405, P-GW (reside in other words conj.or perhaps P-GW PCEF) sends the IP-CAN session to vPCRF and sets up Indication message, carries the sign of the PDN that user ID and user will insert in the message;
406, the sign of the vPCRF PDN that will insert according to user ID and user is carried out IP-CAN session and gateway control related, and sends the IP-CAN session to hPCRF and sets up Indication message;
407, hPCRF is according to user's CAMEL-Subscription-Information, and network strategy etc. are made a strategic decision, and formulates PCC rule and event trigger;
408, hPCRF sets up acknowledge message by the IP-CAN session and sends PCC rule and event trigger to vPCRF;
409, vPCRF sends the IP-CAN session to P-GW and sets up acknowledge message, carries PCC rule and event trigger.VPCRF may make amendment to PCC rule and event trigger that hPCRF issues according to local policy;
410, P-GW installs PCC rule and event trigger, closes to return to S-GW or trusted non-3 GPP access network then and sets up the IP-CAN session response message;
411, vPCRF reformulates QoS rule and event trigger according to PCC rule and event trigger that hPCRF issues, if different with the QoS rule or the event trigger that are handed down to BBERF before, then vPCRF gives information by gateway control and QoS rule new QoS rule and event trigger is handed down to BBERF;
412, S-GW or trusted non-3 GPP access network close to be installed new QoS rule and event trigger, return gateway control and the QoS rule provides acknowledge message to vPCRF then;
413, S-GW or trusted non-3 GPP access network close to return and set up the gateway control session response message.
After as above an embodiment sets up the IP-CAN session, initiate the IP-CAN session modification owing to BBERF switches, as shown in Figure 5, each step is described below:
501, purpose S-GW or trusted non-3 GPP access network pass is received and is set up the gateway control session request message.When inserting by E-UTRAN, this message is that the default bearing that MME sends is set up request message, and when closing access by the trusted non-3 GPP access network, this message is that the layer 3 in the trusted non-3 GPP access network adheres to message.Carry the sign of the PDN that user ID and user will insert in the message;
502, the purpose S-GW of the resident BBERF of having or trusted non-3 GPP access network close and to send gateway control session to vPCRF and set up Indication message (being that BBERF sends gateway control session message to vPCRF), carry sign and the LBO indication of the PDN that user ID and user will insert in the message.The network ID of P-GW in vPCRF self networks ID and the above-mentioned message is identical.VPCRF carries out related with the IP-CAN session of setting up before this gateway control session according to user ID with the PDN sign that the user will insert;
503, (change has taken place in the position as UE as if the incident generation of describing in the event trigger that hPCRF issues before, change etc. has taken place in the access technology type), vPCRF sends the indication of IP-CAN session modification to hPCRF, carries the event report and the affected PCC rule that change in the message;
Whether the incident that vPCRF also might not carry out describing in the decision event trigger takes place, just information entrained in the gateway control session message is sent to hPCRF by IP-CAN session modification Indication message, comprise the sign of carrying the PDN that user ID and user will insert, and new positional information or access technology type etc.;
504, hPCRF reformulates the PCC rule according to the information of event report, and sends to vPCRF by IP-CAN session modification acknowledge message.The also possible update event trigger of hPCRF, and be handed down to vPCRF;
If hPCRF does not receive event report, the information that it carries according to IP-CAN session modification message, the sign of the PDN that will insert as user ID and user, and new positional information or access technology type etc. reformulate the PCC rule, and send to vPCRF by IP-CAN session modification acknowledge message;
505, vPCRF reformulates the QoS rule according to the PCC rule, and sets up acknowledge message by gateway control session QoS rule and event trigger (if upgrade, down with) are sent to purpose S-GW or trusted non-3 GPP access network pass.Purpose S-GW or trusted non-3 GPP access network close installs the QoS rule;
506, purpose S-GW or trusted non-3 GPP access network close receiving setting up behind the gateway control session request message in 501 steps and send to P-GW and to set up the IP-CAN conversation request message, carry the sign of the PDN that user ID and user will insert in the message;
This step and follow-up correlation step and step 502 and follow-up correlation step can walk abreast, and do not have fixing sequencing.
507, resident have the P-GW of PCEF to send the indication of IP-CAN session modification to vPCRF;
508, if the incident of describing in the event trigger that hPCRF issues takes place, vPCRF sends IP-CAN session modification Indication message to hPCRF, carries the event report and the affected PCC rule that change in the message;
509, hPCRF reformulates the PCC rule according to the information of event report, and sends to vPCRF by IP-CAN session modification acknowledge message.The also possible update event trigger of hPCRF, and be handed down to vPCRF;
510, vPCRF sends PCC rule and event trigger (if hPCRF update event trigger) by IP-CAN session modification acknowledge message to P-GW, and the vPCRF rule may be made amendment to the PCC rule that hPCRF issues according to local policy;
511, P-GW installs PCC rule and event trigger, and sets up the IP-CAN session response message to purpose S-GW or the transmission of trusted non-3 GPP access network pass;
512, if change has taken place in the PCC rule that the PCC rule that issues in 509 steps issues in going on foot with 506, then vPCRF reformulates QoS rule and event trigger according to up-to-date PCC rule, and then vPCRF gives information by gateway control and QoS rule QoS rule after upgrading and event trigger (if renewal) are handed down to S-GW or trusted non-3 GPP access network pass;
Step 512 is optional.
513, S-GW or trusted non-3 GPP access network close to be installed QoS rule and event trigger (if renewal), and return gateway control and the QoS rule provides acknowledge message to vPCRF.
514, purpose S-GW or trusted non-3 GPP access network close and to receive setting up in 511 steps and return after the IP-CAN session response message and set up the gateway control session response message;
515, source S-GW or trusted non-3 GPP access network close and to receive deletion gateway control session request message, carry the sign of the PDN that user ID and user will insert in the message;
516, source S-GW or trusted non-3 GPP access network close to vPCRF and send gateway control session termination Indication message, carry the sign of the PDN that user ID and user will insert in the message;
517, the sign of the vPCRF PDN that will insert according to user ID and user is with old gateway control session deletion;
518, source S-GW or trusted non-3 GPP access network close QoS rule that gateway control session is relevant and event trigger deletion, return the deletion gateway control session then and reply.
After setting up the IP-CAN session as first embodiment, because the resource that the user please look for novelty or discharge resource and initiate the IP-CAN session modification, as shown in Figure 6, each step is described below:
601, the S-GW of the resident BBERF of having or trusted non-3 GPP access network close and receive the gateway control session modify request messages.When inserting by E-UTRAN, this message is that the default bearing that MME sends is set up request message, and when closing access by the trusted non-3 GPP access network, this message is that the layer 3 in the trusted non-3 GPP access network adheres to message.；
602, because the incident that defines in the event trigger that issues before generation, resident have the S-GW of BBERF or trusted non-3 GPP access network to close to vPCRF transmission gateway control and QoS rule request message, carries the event report and the affected QoS rule that change in the message;
603, vPCRF sends the indication of IP-CAN session modification to hPCRF, carries the event report and the affected PCC rule that change in the message;
604, hPCRF reformulates the PCC rule according to the information of event report, and sends to vPCRF by IP-CAN session modification acknowledge message.The also possible update event trigger of hPCRF, and be handed down to vPCRF;
605, vPCRF reformulates the QoS rule according to the PCC rule that issues, and sends to S-GW or trusted non-3 GPP access network pass by gateway control and QoS rule response message, if hPCRF update event trigger, event trigger also issues together;
606, S-GW or trusted non-3 GPP access network close to be installed new Qos rule and event trigger (if renewal), and return gateway control and the QoS rule is replied acknowledge message to vPCRF;
607, S-GW or trusted non-3 GPP access network close and return gateway control session modification response message;
608, vPCRF gives information the PCC rule that issues and event trigger (if renewal) in 604 steps and is handed down to P-GW by strategy and charging regulation;
609, P-GW installs the PCC rule, and provides affirmation to vPCRF transmission strategy and charging regulation.
After setting up the IP-CAN session as first embodiment, wait and trigger PCRF initiation IP-CAN session modification because business information changes or user signing contract information changes, as shown in Figure 7, each step is described below:
701, alternatively, AF offers hPCRF with business information;
702, hPCRF preserves business information, returns acknowledge message to AF;
703, hPCRF carries out strategic decision-making and mandate, reformulates the PCC rule.HPCRF might the update event trigger;
704, hPCRF gives information PCC rule and event trigger (if renewal) and sends to vPCRF by strategy and charging regulation;
705, vPCRF reformulates the QoS rule according to the PCC rule that issues, and gives information by gateway control and QoS rule QoS rule and event trigger (if renewal) are sent to S-GW or trusted non-3 GPP access network pass;
706, S-GW or trusted non-3 GPP access network close to be installed QoS rule and event trigger (if renewal), and return gateway control and the QoS rule provides acknowledge message;
707, vPCRF gives information PCC rule and event trigger and sends to P-GW by strategy and charging regulation;
708, P-GW installs PCC rule and event trigger, and returns strategy and charging regulation provides acknowledge message;
709, vPCRF returns strategy and charging regulation provides acknowledge message to hPCRF.
Be noted that above-mentioned vPCRF closes to S-GW or trusted non-3 GPP access network, with the sequencing of the operation that issues the QoS rule to P-GW different set can be arranged, the present invention is not limited to the order of the foregoing description.
After setting up the IP-CAN session as first embodiment, owing to the IP-CAN session termination is initiated in user's attachment removal, as shown in Figure 8, each step is described below:
801, the S-GW of the resident BBERF of having or trusted non-3 GPP access network close the request message that receives deletion IP-CAN session.When inserting by E-UTRAN, this message is that the default bearing that MME sends is set up request message, and when closing access by the trusted non-3 GPP access network, this message is that the layer 3 in the trusted non-3 GPP access network adheres to message.Carry the sign of the PDN that user ID and user will insert in the message;
802, S-GW or trusted non-3 GPP access network close relevant QoS rule and the event trigger of sign deletion of the PDN that will insert according to user ID and user, and to vPCRF transmission gateway control session ending message;
803, relevant QoS rule and the event trigger of vPCRF deletion, and return gateway control session termination acknowledge message;
804, S-GW or trusted non-3 GPP access network close to P-GW and send deletion IP-CAN conversation request message, carry the sign of the PDN that user ID and user will insert in the message;
805, the sign of the P-GW PDN that will insert according to user ID and user sends the indication of IP-CAN session termination to vPCRF;
806, relevant PCC rule and the event trigger of vPCRF deletion, and to the indication of hPCRF transmission IP-CAN session termination;
807, relevant PCC rule and the event trigger of P-GW deletion;
Step 806 and 807 can be carried out simultaneously.
808, relevant PCC rule and the event trigger of hPCRF deletion, and return the IP-CAN session termination to vPCRF and confirm;
809, vPCRF returns the affirmation of IP-CAN session termination to P-GW;
810, P-GW closes to S-GW or trusted non-3 GPP access network and returns deletion IP-CAN session and reply;
811, S-GW or trusted non-3 GPP access network close and to return deletion IP-CAN session and reply.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (16)
1, a kind of method of policy and charging control of concealing visited place network topological structure is applied to the grouping system of 3GPP evolution, comprising:
Connecting Access Network at the IP of described subscriber equipment is in the IP-CAN session modification flow process, after described access zone network "Policy and Charging Rules Function vPCRF receives the gateway control session message of bearing binding and event reporting function BBERF transmission, adopt IP-CAN conversation message and described vPCRF mutual, obtain strategy that home network "Policy and Charging Rules Function hPCRF reformulates and charging control PCC rule and be handed down to described BBERF by gateway control session message.
2, strategic charging control method as claimed in claim 1 is characterized in that, also comprises:
In the IP-CAN of described subscriber equipment session foundation or session modification flow process, described vPCRF preserves the event trigger that described hPCRF issues; Described vPCRF judges whether that the incident that described event trigger is described takes place after receiving the gateway control session message that described BBERF sends, if any, adopt IP-CAN conversation message and described hPCRF mutual.
3, strategic charging control method as claimed in claim 1 or 2 is characterized in that, also comprises:
In the IP-CAN of described subscriber equipment session modification flow process, described vPCRF receives the IP-CAN conversation message that strategy and charge execution function PCEF send;
Described vPCRF judges whether that the incident that described event trigger is described takes place, if any, adopt IP-CAN conversation message and described hPCRF mutual, it is regular and be handed down to described PCEF by IP-CAN message to obtain PCC that described hPCRF reformulates.
4, strategic charging control method as claimed in claim 1 or 2 is characterized in that, also comprises:
Described BBERF resides on the gateway S-GW, and described subscriber equipment inserts the grouping system of described 3GPP evolution with the roam mode of local break-out by the UTRAN of evolution, and adopts the PMIPv6 agreement between described S-GW and the data network gateway P-GW; Perhaps
Described BBERF resides in the trusted non-3 GPP access network and shuts, and described subscriber equipment adopts the PMIPv6 agreement to insert the grouping system of described 3GPP evolution with the roam mode of local break-out.
5, strategic charging control method as claimed in claim 4 is characterized in that:
Set up in the process in described IP-CAN session, resident have the S-GW of described BBERF or trusted non-3 GPP access network to close the event trigger that the described vPCRF of installation issues;
Described IP-CAN session modification flow process is initiated owing to BBERF switches, and this flow process comprises:
Resident purpose S-GW that this BBERF arranged or trusted non-3 GPP access network close receive set up the gateway control session request message after, send gateway control session to described vPCRF and set up Indication message;
After described vPCRF receives that gateway control session is set up Indication message, described gateway control session is associated with the IP-CAN session of setting up before, directly send the indication of IP-CAN session modification or when the incident that judgement has described event trigger to describe takes place, send the indication of IP-CAN session modification, carry the event report and the affected PCC rule that change to described hPCRF to described hPCRF;
Described hPCRF reformulates the PCC rule according to the information of carrying in the IP-CAN session modification Indication message, sends to described vPCRF by IP-CAN session modification acknowledge message;
Described vPCRF reformulates the QoS rule according to the PCC rule, and sets up acknowledge message by gateway control session and send to described purpose S-GW or trusted non-3 GPP access network and close;
Described purpose S-GW or trusted non-3 GPP access network close installs new QoS rule.
6, strategic charging control method as claimed in claim 5 is characterized in that, described IP-CAN session modification flow process also comprises:
Described purpose S-GW or trusted non-3 GPP access network close receive set up the gateway control session request message after, also send and set up the IP-CAN conversation request message to the described P-GW of the resident PCEF of having, carry the sign of the PDN that user ID and user will insert;
Described P-GW sends the indication of IP-CAN session modification to described vPCRF;
The incident of describing in the event trigger that described vPCRF such as judgement have hPCRF to issue takes place, and sends IP-CAN session modification Indication message to described hPCRF, carries the event report and the affected PCC rule that change;
Described hPCRF reformulates the PCC rule according to the information of described event report, sends to vPCRF by IP-CAN session modification acknowledge message;
Described vPCRF by strategy and charging regulation give information to described P-GW send described PCC regular or make amendment according to the PCC rule that local policy issues hPCRF after the PCC rule;
Described P-GW installs the PCC rule that issues, and sets up the IP-CAN session response message to purpose S-GW or the transmission of trusted non-3 GPP access network pass, and provides affirmation to described vPCRF transmission strategy and charging regulation;
Described purpose S-GW or trusted non-3 GPP access network close to be received after the IP-CAN session response message to return to the transmit leg of setting up the gateway control session request message and sets up the gateway control session response message.
7, strategic charging control method as claimed in claim 6 is characterized in that, also comprises:
After described vPCRF receives the PCC rule that described hPCRF issues by IP-CAN session modification acknowledge message, judge whether that also to set up the PCC rule that acknowledge message issues by gateway control session identical with described hPCRF, if change, then the PCC rule that issues according to IP-CAN session modification acknowledge message is reformulated the QoS rule, gives information by gateway control and QoS rule and closes to described S-GW or trusted non-3 GPP access network the QoS rule downloading after upgrading;
Described S-GW or trusted non-3 GPP access network close receives that gateway control and the QoS rule back that gives information installs wherein QoS rule, returns gateway control and the QoS rule provides acknowledge message to described vPCRF.
8, strategic charging control method as claimed in claim 6 is characterized in that, in the described IP-CAN session modification flow process, also comprises:
After described source S-GW or trusted non-3 GPP access network close and receive the request of deletion gateway control session, carry the sign of the PDN that user ID and user will insert in the message;
Described source S-GW or trusted non-3 GPP access network close to described vPCRF and send gateway control session termination Indication message, carry the data network sign that user ID and user will insert in the message;
Described vPCRF deletes old gateway control session according to described user ID and data network sign;
Described source S-GW or trusted non-3 GPP access network close QoS rule and event trigger deletion that gateway control session is relevant, and the transmit leg that disappears to the request of deletion gateway control session returns and deletes gateway control session and reply then.
9, strategic charging control method as claimed in claim 4 is characterized in that:
Set up in the process in described IP-CAN session, resident have the S-GW of described BBERF or trusted non-3 GPP access network to close the event trigger that the described vPCRF of installation issues;
Described IP-CAN session modification flow process is because resource that the user please look for novelty or release resource are initiated, and further comprises:
Resident have the S-GW of described BBERF or trusted non-3 GPP access network pass to receive gateway control session modification message, judging has the incident of described event trigger definition to take place, send gateway control and QoS rule request message to described vPCRF, carry the event report and the affected PCC rule that change;
Described vPCRF sends IP-CAN session modification Indication message to described hPCRF, carries the event report and the affected PCC rule that change;
Described hPCRF reformulates the PCC rule according to the information of described event report, sends to described vPCRF by IP-CAN session modification acknowledge message;
Described vPCRF sends to described S-GW or trusted non-3 GPP access network pass according to the PCC Rulemaking QoS rule that issues by gateway control and QoS rule response message;
Described S-GW or trusted non-3 GPP access network close when judgement Qos rule is new, this Qos rule is installed, return gateway control and the QoS rule is replied acknowledge message to described vPCRF, and return gateway control session to the transmit leg that gateway control session is revised message and revise response message;
The PCC rule that described vPCRF also issues described hPCRF gives information by strategy and charging regulation and is handed down to P-GW, and described P-GW installs described PCC rule, and provides affirmation to described vPCRF transmission strategy and charging regulation.
10, strategic charging control method as claimed in claim 4 is characterized in that:
Described IP-CAN session modification flow process is initiated owing to business information or user signing contract information change, and further comprises:
Described hPCRF carries out strategic decision-making and mandate after receiving business information or user signing contract information, reformulates the PCC rule, and giving information by strategy and charging regulation sends to described vPCRF;
Described vPCRF reformulates the QoS rule according to the PCC rule that issues, and gives information by gateway control and QoS rule and the QoS rule to be sent to S-GW or the trusted non-3 GPP access network closes, and giving information by strategy and charging regulation sends to P-GW;
Described S-GW or the described QoS rule of trusted non-3 GPP access network pass installation are returned gateway control and the QoS rule provides acknowledge message; Described P-GW installs described PCC rule, returns strategy and charging regulation acknowledge message is provided;
Described vPCRF to described hPCRF return the strategy and charging regulation acknowledge message is provided.
11, as the described strategic charging control method of arbitrary claim in the claim 5 to 10, it is characterized in that:
Described hPCRF goes back the update event trigger when reformulating the PCC rule, and is handed down to described vPCRF together with the described PCC rule of reformulating;
Described vPCRF also is handed down to described P-GW together with event trigger after the described renewal and PCC rule, and S-GW or trusted non-3 GPP access network pass;
Described P-GW, and S-GW or trusted non-3 GPP access network are installed after closing the event trigger of receiving after the described renewal.
12, a kind of method of policy and charging control of concealing visited place network topological structure is applied to IP connection Access Network IP-CAN session and sets up process, comprising:
Set up in the process in the IP-CAN session, resident S-GW that bearing binding and event reporting function BBERF arranged or trusted non-3 GPP access network close by gateway control message and access zone network "Policy and Charging Rules Function vPCRF mutual, and QoS rule and event trigger that it issues are installed;
And, after described S-GW or trusted non-3 GPP access network close and select the resident data network gateway P-GW that strategy and charge execution function PCEF arranged, set up the IP-CAN conversation request message to the P-GW transmission, described P-GW obtains strategy and charging control PCC rule and event trigger or regular and event trigger and the installation through the amended PCC of described vPCRF that home network "Policy and Charging Rules Function hPCRF formulates by the IP-CAN conversation message by described vPCRF.
13, method as claimed in claim 12 is characterized in that, described IP-CAN session is set up process and be may further comprise the steps:
After the S-GW of the resident BBERF of having or trusted non-3 GPP access network pass receive and set up the gateway control session request message, select P-GW, and send gateway control to described vPCRF and set up Indication message, carry the data network sign that user ID and user will insert and the indication information of roam mode;
Described vPCRF judges that according to described indication information the user has adopted the roaming mode of local break-out, and when not having the IP-CAN session between vPCRF and the hPCRF, for QoS rule and event trigger are formulated in this session, set up acknowledge message by gateway control session and send to described S-GW or trusted non-3 GPP access network pass;
Described S-GW or trusted non-3 GPP access network close installs QoS rule and event trigger;
Described S-GW or trusted non-3 GPP access network close to the P-GW of the resident PCEF of having that selects transmission sets up the IP-CAN conversation request message, carries the data network sign that user ID and user will insert;
Described P-GW sends the IP-CAN session to vPCRF and sets up Indication message, carries the data network sign that user ID and user will insert;
Described vPCRF is associated described IP-CAN session and gateway control according to the data network sign that user ID and user will insert, and sends the IP-CAN session to described hPCRF and set up Indication message;
Described hPCRF formulates PCC rule and event trigger for this session, sets up acknowledge message by the IP-CAN session and sends to described vPCRF;
Described vPCRF sends the IP-CAN session to described P-GW and sets up acknowledge message, carry the PCC rule that issues and event trigger or through the amended PCC of described vPCRF regular and event trigger make amendment;
Described P-GW installs PCC rule and event trigger, closes to return to described S-GW or trusted non-3 GPP access network then and sets up the IP-CAN session response message;
Described S-GW or trusted non-3 GPP access network pass are returned to the transmit leg of setting up the gateway control session request and are set up the gateway control session response message.
14, method as claimed in claim 13 is characterized in that, also comprises:
Described vPCRF also reformulates QoS rule and event trigger according to PCC rule and event trigger that described hPCRF issues, if different, then give information new QoS rule and/or event trigger are handed down to described S-GW or trusted non-3 GPP access network pass by gateway control and QoS rule with the QoS rule and/or the event trigger that are handed down to described S-GW or trusted non-3 GPP access network pass before;
Described S-GW or trusted non-3 GPP access network close installs new QoS rule and event trigger, returns gateway control and the QoS rule provides acknowledge message to vPCRF then.
15, as claim 12,13 or 14 described methods, it is characterized in that:
The subscriber equipment of initiating described session inserts the grouping system of described 3GPP evolution with the roam mode of local break-out by the UTRAN of evolution, and adopts the PMIPv6 agreement between described S-GW and the data network gateway P-GW; The subscriber equipment of perhaps initiating described session adopts the PMIPv6 agreement to insert the grouping system of described 3GPP evolution with the roam mode of local break-out.
16, a kind of method of policy and charging control of concealing visited place network topological structure is applied to IP and connects Access Network session termination flow process, comprising:
Resident gateway S-GW that bearing binding and event reporting function BBERF arranged or trusted non-3 GPP access network close and receive deletion IP to be connected Access Network be the IP-CAN conversation request message, carry the data network that user ID and user will insert in the message and identify;
Described S-GW or trusted non-3 GPP access network close according to user ID will insert relevant QoS rule and the event trigger of data network sign deletion with the user, and to access zone network "Policy and Charging Rules Function vPCRF transmission gateway control session ending message, relevant QoS rule and the event trigger of described vPCRF deletion, and return gateway control session termination acknowledge message;
Described S-GW or trusted non-3 GPP access network close to described P-GW and send deletion IP-CAN conversation request message, carry the data network sign that user ID and user will insert in the message; Described P-GW sends the indication of IP-CAN session termination according to the sign of the PDN that user ID and user will insert to described vPCRF, and deletion local relevant PCC rule and event trigger;
Relevant PCC rule and the event trigger of described vPCRF deletion, and to the indication of home network "Policy and Charging Rules Function hPCRF transmission IP-CAN session termination;
Relevant PCC rule and the event trigger of described hPCRF deletion, and return the IP-CAN session termination to vPCRF and confirm, returning the IP-CAN session termination to described P-GW after described vPCRF receives confirms, after described P-GW receives, close to S-GW or trusted non-3 GPP access network and to return deletion IP-CAN session and reply;
Described S-GW or trusted non-3 GPP access network pass are returned deletion IP-CAN session to deletion IP-CAN session and are replied.
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| PCT/CN2008/071663 WO2009135362A1 (en) | 2008-05-08 | 2008-07-16 | Policy and charging control method for hiding topology of visited network |
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| CN101272534B (en) | 2012-07-18 |
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