CN101459951A - Method and system for bearing binding and event reporting function policy control - Google Patents
Method and system for bearing binding and event reporting function policy control Download PDFInfo
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Abstract
The invention discloses a method for bearing binding and event report function strategy control, and a system thereof. The invention adds a mark in a message which is sent by a BBERF and a PCRF mutually, wherein the mark is used to indicate which IP-CAN conversation is related with the message, and the BBERF or the PCRF can be correctly bound with the IP-CAN conversation according to the mark in the message when the BBERF or the PCRF receives the message. The mark is exclusive to each IP-CAN conversation under one PCRF. When users' devices build IP connection with a plurality of business networks simultaneously and adopt DSMIPv6 protocols through the method and the system, a plurality of IP-CAN conversations exist in the network, however, BBEFR can correctly bind strategy control information which is issued by the PCRF to a corresponding IP-CAN conversation through the mark in the message. Simultaneously, PCRF also can correctly bind related information sent by the BBERF to the corresponding IP-CAN conversation through the mark in the message.
Description
Technical field
The present invention relates to 3GPP (3rd Generation Partnership Project, third generation partner program) grouping system of evolution (EPS:Evolved Packet System), the particularly method of bearing binding and event report function strategy control in this system.
Background technology
As shown in Figure 1, the EPS of 3GPP is by E-UTRAN (Evolved Universal TerrestrialRadio Access Network, the Universal Terrestrial Radio Access Network of evolution), MME (MobilityManagement Entity, mobile management unit), S-GW (Serving Gateway, gateway), P-GW (Packet Data Network Gateway, grouped data network gateway), HSS (HomeSubscriber Server, home subscriber server), 3GPP aaa server (3GPP authentication and authorization charging server), PCRF (Policy and Charging Rules Function, "Policy and Charging Rules Function) entity and other support nodes are formed.Wherein, S-GW is the accessing gateway equipment that links to each other with E-UTRAN, transmits data between E-UTRAN and P-GW, and is responsible for pending datas such as paging are carried out buffer memory; P-GW then is the borde gateway of EPS and PDN (Packet DataNetwork, Packet Data Network), is responsible for the access of PDN, transmits data etc. between EPS and PDN; PCRF is by Rx interface and the IP of operator (Internet Protocol, Internet protocol) business network interface, obtain business information, it links to each other another side with gateway device in the 3GPP network by the S7/S7a/S7b/S7c interface, be responsible for initiating the foundation of IP carrying, guarantee the QoS (Quality of Service, service quality) 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 then as 3GPP network and the internetwork anchor point of non-3GPP with the intercommunication of non-3GPP network.Non-3GPP network comprises the non-3GPP network of trusted and trustless non-3GPP network.The IP of the non-3GPP network of trusted inserts can be directly by S2a and P-GW interface; The IP of trustless non-3GPP network 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.UE (User Equipment, subscriber equipment) also can adopt DSMIPv6 (Dual Stack Mobile IPv6, two stack mobile IP v 6s) agreement directly to be connected with P-GW by the S2c interface simultaneously.
In the EPS system, PCEF (Policy and charging enforcement function, strategy and charge execution function) resides among the P-GW, passes through S7 interface exchange message between PCRF and P-GW.When the interface between P-GW and S-GW during based on PMIPv6, also there is the function of policy control in S-GW, be called BBERF (Bearer Binding and Event Reporting Function, bearing binding and event reporting function), pass through S7c interface exchange message between S-GW and the PCRF.When subscriber equipment during by the non-3GPP network insertion of trusted, also have BBERF in the trusted non-3 GPP access network, between non-3GPP network access gateway of trusted and the PCRF by S7a interface exchange message.When subscriber equipment during by trustless non-3GPP network insertion, have BBERF among the ePDG, between ePDG and the PCRF by S7b interface exchange message.During the UE roaming, the S9 interface is as the interface of ownership place PCRF and visit ground PCRF.Simultaneously, for UE provides professional AF (Application Function, application function) is used to formulate PCC (Policy and Charging Control by the Rx+ interface to the PCRF transmission, the strategy and the control of chargeing) or the tactful business information of QoS (Quality of Service, service quality).
MIPv6 (Moblie IPv6) is by to the binding support MN of the IPv6 Care-of Address CoA of mobile node MN (Mobile Node) and IPv6 home address the HoA accessibility and the continuity of session when mobile in network.But because IPv6 is not also disposed widely, in very long from now on a period of time, the network of IPv4 also will exist in a large number.The MN of IPv6 tends to move on the network of not supporting IPv6, therefore must expand MIPv6.DSMIPv6 is a kind of solution effectively, and it is a kind of MIP agreement based on client (Client-based), requires mobile node MN and home agent Home Agent all to need to support DSMIPv6.The binding of the MN that supports DSMIPv6 by its IPv4/IPv6 Care-of Address and IPv4/IPv6 home address is supported in the mobility on IPv4 or the IPv6 network.
The EPS system supports many PDN to insert, and promptly UE can be linked into a plurality of PDN simultaneously by a plurality of P-GW or a P-GW.Fig. 2 is UE inserts two PDN and UE employing DSMIPv6 agreement simultaneously by two P-GW a scene graph.Fig. 3 is based under Fig. 2 scene, the flow chart that UE initially adheres to, and concrete steps are as follows:
Step 301: subscriber equipment inserts trusted non-3 GPP access network network by layer 2, and HSS/AAA carries out the access authentication mandate to UE;
Step 302: behind the authentication success, the layer 3 of setting up UE and the non-3GPP connecting system of trusted is connected; Connecting system is that UE distributes the Care-of Address CoA of an IP address as UE;
Step 303: the trusted non-3 GPP access network sends " gateway control session foundation " request to PCRF, carries NAI (Network Access Identifier, network access identifier) and the Care-of Address CoA of UE in the message;
The CAMEL-Subscription-Information of step 304:PCRF strategy Network Based and UE is formulated control strategy, i.e. QoS rule, and send to the trusted non-3 GPP access network, the independent of service that control strategy at this moment follows UE to insert by " gateway control session is set up and confirmed " message;
Step 305:UE is according to APN1 (Access Point Name, Access Point Name) carries out DNS (Domain Name Server, name server) inquiry, obtain the IP address of the P-GW1 that access business network 1 is provided, set up Security Association between UE and the P-GW1, P-GW1 is that UE distributes home address HoA1 in this process;
Step 306:UE sends " Binding Update " request message to P-GW1, carries CoA and HoA1 in the message;
Step 307:P-GW1 sends " indication is set up in the IP-CAN session " message to PCRF, carries CoA, HoA1, NAI and APN1 in the message, and PCRF carries out related with gateway control session session according to CoA;
The information of step 308:PCRF and the business network 1 that will insert signatory according to network strategy, user etc. is formulated corresponding PCC rule and event trigger, and sends to P-GW1 by " affirmation is set up in the IP-CAN session " message;
Step 309:P-GW1 returns " binding acknowledgement " message to UE;
The information of step 310:PCRF and the business network 1 that will insert signatory according to network strategy, user etc. is made amendment to QoS rule before, and the formulation event trigger, send to the trusted non-3 GPP access network by " gateway control and QoS rule provide " message;
Step 311: the trusted non-3 GPP access network returns " gateway control and QoS rule provide affirmation " message to P-GW1;
Step 312:UE determines access business network 2, carries out DNS inquiry, the IP address that obtains the P-GW2 that access business network 2 is provided according to APN2;
Set up Security Association between step 313:UE and the P-GW2, P-GW2 is that UE distributes home address HoA2 in this process;
Step 314:UE sends " Binding Update " request message to P-GW2, carries CoA and HoA2 in the message;
Step 315:P-GW2 sends " indication is set up in the IP-CAN session " message to PCRF, carries CoA, HoA2, NAI and APN2 in the message, and PCRF carries out related with gateway control session session according to CoA;
The information of step 316:PCRF and the business network 2 that will insert signatory according to network strategy, user etc. is formulated corresponding PCC rule and event trigger, and sends to P-GW2 by " affirmation is set up in the IP-CAN session " message;
Step 317:P-GW2 returns " binding acknowledgement " message to UE;
The information of step 318:PCRF and the business network 2 that will insert signatory according to network strategy, user etc. is formulated QoS rule and event trigger, sends to the trusted non-3 GPP access network by " gateway control and QoS rule provide " message;
Step 319: the trusted non-3 GPP access network returns " gateway control and QoS rule provide affirmation " message to P-GW2.
Owing to the information of the business network 1 that when step 304, does not have UE to insert, thus the QoS rule will in step 310, be revised, and PCRF has had the information of business network 2 when step 318, therefore can directly specify the QoS rule.
By above-mentioned flow process, two IP that UE has set up business network 1 and business network 2 respectively are connected.This UE is called IP-CAN (IP Connectivity AccessNetwork, IP connects Access Network) session to the IP connection of business network.For convenience of description, be connected to IP-CAN session 1 to call UE in the following text to the IP of business network 1, UE is connected to IP-CAN session 2 to the IP of business network 2.PCRF has set up a Diameter session with the trusted non-3 GPP access network, and (the available technology adopting Diameter is set up this and is connected, in PCRF and trusted non-3 GPP access network, preserve the context of Diameter session), P-GW1, P-GW2 set up a Diameter session with PCRF respectively.
PCRF will carry out the PCC of policy and charging control or QoS rule and event trigger to IP-CAN session 1 by the Diameter session between trusted non-3 GPP access network and the PCRF and the Diameter session between P-GW1 and the PCRF and be handed down to relevant gateway.Same PCRF will carry out the PCC of policy and charging control or QoS rule and trigger to IP-CAN session 2 by the Diameter session between trusted non-3 GPP access network and the PCRF and the Diameter session between P-GW2 and the PCRF and be handed down to relevant gateway.Be not difficult to find out from last analysis, Diamter session and IP-CAN session between P-GW and the PCRF are man-to-man, when PCRF sent to P-GW by the Diamter session with policy information, P-GW can determine that these policy informations are relevant with which IP-CAN session.And Diamter session between trusted non-3 GPP access network and the PCRF and IP-CAN session are one-to-manies, when PCRF sent to the trusted non-3 GPP access network by this Diameter session with policy information, the trusted non-3 GPP access network can not determine that these policy informations are relevant with which IP-CAN session.Can cause policy control mistake to occur like this.For example: PCRF has issued the regular trusted non-3 GPP access network of giving of QoS that IP-CAN session 1 is carried out policy control, and the trusted non-3 GPP access network is controlled business data flow after the QoS rule is installed; Subsequently, PCRF has issued the QoS rule that IP-CAN session 2 is controlled again and has given the trusted non-3 GPP access network, and at this moment the trusted non-3 GPP access network can be thought the renewal to the QoS rule that issues before, thereby causes policy control mistake to occur.
When UE determines from business network 1 disconnection, the All Policies control information that PCRF must notify BBERF to delete or deexcitation is correlated with IP-CAN session 1, and the policy control information that reservation follows IP-CAN session 2 to be correlated with.And the policy control information that BBERF and not knowing will delete or which IP-CAN session of deexcitation is relevant.
Summary of the invention
The technical problem to be solved in the present invention provides the method and system of a kind of bearing binding and event report function strategy control, when there are a plurality of IP-CAN sessions in subscriber equipment and adopt the DSMIPv6 agreement, bearing binding and event reporting function can be distinguished the policy control information of each IP-CAN session, thereby business data flow is carried out correct policy control.
In order to address the above problem, the invention provides the method for a kind of bearing binding and event report function strategy control, may further comprise the steps:
"Policy and Charging Rules Function sends to bearing binding and event reporting function with policy control information and sign, and described sign is used to indicate the IP relevant with this policy control information to connect the Access Network session;
After described bearing binding and event reporting function receive described policy control information and sign, according to sign policy control information is connected the Access Network binding session with corresponding IP, and carries out corresponding operating according to described policy control information.
Wherein, policy control information comprises that rules for quality of service, event trigger, IP connect Access Network session attribute, session termination indication.
Wherein, described sign is distributed by "Policy and Charging Rules Function, and the sign of each IP connection Access Network session under this "Policy and Charging Rules Function is unique.
Described sign also can be home address or the Access Point Name that connects the relevant subscriber equipment of Access Network session with IP.
Wherein, carrying out corresponding operating according to described policy control information comprises:
Install and/or excited service quality rule and event trigger;
Updating service quality rule and event trigger;
Deletion and/or deexcitation rules for quality of service and event trigger.
Further, described bearing binding is after IP is connected Access Network session build-in services quality rule and event trigger with event reporting function, if connecting the business information of Access Network session corresponding service network, this IP changes, need to upgrade rules for quality of service and the event trigger that this IP connects the Access Network session, step of updating is:
The described "Policy and Charging Rules Function of message informing that described business network changes business information;
Described "Policy and Charging Rules Function is reformulated with this IP and is connected the relevant policy control information of Access Network session, and described policy control information and sign sent to described bearing binding and event reporting function, described sign is used to indicate the IP relevant with this policy control information to connect the Access Network session;
Described bearing binding is connected Access Network binding session with this policy control information with corresponding IP according to the sign that receives with event reporting function, and for this IP connects the Access Network session new rules for quality of service and event trigger is installed, and finishes renewal.
Further, described bearing binding is after IP is connected Access Network session build-in services quality rule and event trigger with event reporting function, if subscriber equipment is initiated using this IP to connect the new resource allocation of Access Network session corresponding service network or discharging request, need to upgrade rules for quality of service and the event trigger that this IP connects the Access Network session, step of updating is:
Described subscriber equipment sends resource allocation or discharges request to described non-third generation partner program network trusty;
Bearing binding in the described non-third generation partner program network trusty and event reporting function send update inquiry information to described "Policy and Charging Rules Function, comprise sign in the described update inquiry information, be used to identify the IP relevant and connect the Access Network session with this message;
After described "Policy and Charging Rules Function is received described update inquiry information, according to the sign in the update inquiry information it is connected the Access Network binding session with corresponding IP, and reformulate and the relevant policy control information of this IP connection Access Network session, and policy control information and sign sent to described bearing binding and event reporting function, described sign is used to indicate the IP relevant with this policy control information to connect the Access Network session;
After described bearing binding and event reporting function receive described policy control information and sign, according to described sign this policy control information is connected the Access Network binding session with corresponding IP, and, finish renewal for this IP connects new rules for quality of service and the event trigger of Access Network session installation.
Further, described bearing binding is after IP is connected Access Network session build-in services quality rule and event trigger with event reporting function, if user's disconnection is connected with business network, trigger policy is bound with event reporting function with the charging rule functions notice and is deleted rules for quality of service and the event trigger that is connected the Access Network session with deexcitation IP, and step comprises:
The subscriber equipment disconnection is connected with business network, sends to grouped data network gateway and removes to register binding update messages;
Packet data network sends IP to "Policy and Charging Rules Function and connects Access Network session termination Indication message;
"Policy and Charging Rules Function deletion IP connects the relevant policy, billing information of Access Network session, send the gateway control session ending message to bearing binding and event reporting function, carry sign in the gateway control session ending message, be used to identify the IP relevant and connect the Access Network session with this message;
After described bearing binding and event reporting function receive described gateway control session ending message and sign, according to described sign this message is connected the Access Network binding session with corresponding IP, deletion is connected the relevant policy control information of Access Network session with deexcitation IP, and returns gateway control session termination acknowledge message to "Policy and Charging Rules Function.
The present invention also provides the system of a kind of bearing binding and event report function strategy control, comprising:
"Policy and Charging Rules Function is used for policy control information and sign are sent to bearing binding and event reporting function, and described sign is used to indicate the IP relevant with this policy control information to connect the Access Network session;
Bearing binding and event reporting function, be used for after receiving the policy control information and sign that sends by described "Policy and Charging Rules Function, according to described sign, this policy control information is connected the Access Network binding session with corresponding IP, and is this IP connection Access Network session installation, renewal, deletion, activation and deexcitation corresponding control strategies.
Further, in the described system, bearing binding and event reporting function, also be used for when subscriber equipment is initiated to upgrade configuration or discharged resource request, send update inquiry information to described "Policy and Charging Rules Function, comprise a sign in this message, this sign is used to indicate the IP relevant with this message to connect the Access Network session;
"Policy and Charging Rules Function, after also being used to receive the message of sending by described bearing binding and event reporting function, according to the sign in the message, this message is connected the Access Network binding session with corresponding IP, and reformulates policy control message for this IP connects the Access Network session.
Further, in the described system, "Policy and Charging Rules Function also is used to each IP under this "Policy and Charging Rules Function to connect the unique sign of Access Network session distribution.
Further, in the described system, be designated the home address or the Access Point Name that connect the relevant subscriber equipment of Access Network session with IP.
The invention has the beneficial effects as follows, when subscriber equipment simultaneously sets up with a plurality of professional networks that IP is connected and when adopting the DSMIPv6 agreement, though there is a plurality of IP-CAN (IP connects access) session in the network, BBERF (bearing binding and event reporting function) is tied to corresponding IP-CAN session by the policy control information that the sign in the message can correctly issue PCRF (strategy and charge execution function).Equally, PCRF also can correctly be tied to the relevant information of being sent here by BBERF corresponding IP-CAN session by the sign in the message.
Description of drawings
Fig. 1 is a kind of Organization Chart of EPS of 3GPP network of non-roaming state;
Fig. 2 is that UE passes through the schematic diagram that different P-GW inserts different business networks;
Fig. 3 is the attachment flow figure that UE inserts different business networks in the prior art by different P-GW;
Fig. 4 is UE of the present invention inserts an embodiment of different business networks by different P-GW attachment flow figure;
Fig. 5 is that UE of the present invention sets up with after the IP of business network 1 and business network 2 is connected, and when the business information of business network 1 changes, carries out the flow chart of the embodiment that policy control upgrades;
Fig. 6 is that UE of the present invention sets up with after the IP of business network 1 and business network 2 is connected, and UE initiates when using the new resource allocation request of business network 1, carries out the flow chart of the embodiment that policy control upgrades;
Fig. 7 is that UE of the present invention sets up with after the IP of business network 1 and business network 2 is connected, and UE disconnects and being connected with business network 2, carries out tactful the deletion and the flow chart of deexcitation;
Fig. 8 is UE of the present invention inserts the embodiment of different business network by trustless non-3 GPP access network network attachment flow figure;
Fig. 9 is the schematic diagram of an embodiment of the system of bearing binding of the present invention and event report function strategy control.
Embodiment
In the prior art, when setting up IP connection access session, perhaps IP connects when inserting session foundation back renewal relevant information, wrong reason can occur is, because a Diameter session between BBERF (bearing binding and event reporting function) and the PCRF (strategy and charge execution function) is used for transmitting the relevant policy control information of a plurality of IP-CAN (IP connects Access Network) session, when BBERF or PCRF receive the message that the other side sends, can't judge that this message is relevant with which IP-CAN session.The present invention is directed to this problem, in the message that BBERF and PCRF send mutually, add a sign, this sign is used to indicate this message relevant with which IP-CAN session, when BBERF or PCRF receive this message, just can be according to the sign in the message correctly with itself and IP-CAN binding session.This sign all is unique for each the IP-CAN session of same UE under the one PCRF at least.This sign can be that PCRF is each IP-CAN session specific assigned, also can adopt existing parameter, and for example the home address of the UE (subscriber equipment) that employing is relevant with certain IP-CAN session or APN (Access Point Name) are as the sign of this IP-CAN session.
The invention will be further described below in conjunction with the drawings and specific embodiments, can be implemented so that those skilled in the art can better understand the present invention also, but illustrated embodiment is not as a limitation of the invention.
Following examples all insert the scene of different business networks by different P-GW based on UE shown in Figure 2.
As shown in Figure 4, insert the attachment flow figure of an embodiment of different business networks by different P-GW for UE of the present invention.Each step is described below:
Step 401: subscriber equipment inserts trusted non-3 GPP access network network by layer 2, and HSS/AAA carries out the access authentication mandate to UE;
Step 402: behind the authentication success, the layer 3 of setting up UE and the non-3GPP connecting system of trusted is connected, and connecting system is that UE distributes the Care-of Address CoA of an IP address as UE;
Step 403: resident have the trusted non-3 GPP access network of BBERF (bearing binding and event reporting function) to send " gateway control session foundation " request to this PCRF, carries sign NAI and the CoA of UE in the message;
The CAMEL-Subscription-Information of step 404:PCRF strategy Network Based and UE is formulated control strategy, i.e. QoS rule, and send to the trusted non-3 GPP access network, the independent of service that control strategy at this moment follows UE to insert by " gateway control session is set up and confirmed " message;
Step 405:UE carries out DNS inquiry, the IP address that obtains the P-GW1 that access service 1 network is provided according to APN1.Set up Security Association between UE and the P-GW1, P-GW1 is that UE distributes home address HoA1 in this process;
Step 406:UE sends " Binding Update " request message to P-GW1, carries CoA and HoA1 in the message;
Step 407:P-GW1 sends " indication is set up in the IP-CAN session " message to PCRF, carries CoA, HoA1, NAI and APN1 in the message; PCRF carries out related with gateway control session session according to CoA;
The information of step 408:PCRF and the business network 1 that will insert signatory according to network strategy, user etc. is formulated corresponding PCC rule and event trigger, and sends to P-GW1 by " affirmation is set up in the IP-CAN session " message;
Step 409:P-GW1 returns " binding acknowledgement " message to UE;
The information of step 410:PCRF and the business network 1 that will insert signatory according to network strategy, user etc. are made amendment to the QoS rule of formulating before and are formulated event trigger, PCRF is this IP-CAN session allocation identification IP-CAN session identification 1 simultaneously, and QoS rule, event trigger and the IP-CAN session identification 1 that will revise by " gateway control and QoS rule provide " message send to the trusted non-3 GPP access network;
Step 411: the trusted non-3 GPP access network judges it is the relevant policy control information of a newly-built IP-CAN session according to IP-CAN session identification 1, so preserve this IP-CAN session identification 1, for QoS rule and event trigger are installed in this IP-CAN session, and return " gateway control and QoS rule provide affirmation " message to P-GW1;
Step 412:UE determines access business network 2, carries out DNS inquiry, the IP address that obtains the P-GW2 that access business network 2 is provided according to APN2;
Set up Security Association between step 413:UE and the P-GW2, P-GW2 is that UE distributes home address HoA2 in this process;
Step 414:UE sends " Binding Update " request message to P-GW2, carries CoA and HoA2 in the message;
Step 415:P-GW2 sends " indication is set up in the IP-CAN session " message to PCRF, carries CoA, HoA2, NAI and APN2 in the message, and PCRF carries out related with gateway control session session according to CoA;
The information of step 416:PCRF and the business network 2 that will insert signatory according to network strategy, user etc. is formulated corresponding PCC rule and event trigger, sends to P-GW2 by " the IP-CAN session is set up and confirmed " message;
Step 417:P-GW1 returns " binding acknowledgement " message to UE;
The information of step 418:PCRF and the business network 2 that will insert signatory according to network strategy, user etc. is formulated QoS rule and event trigger, PCRF is this IP-CAN session allocation identification IP-CAN session identification 2 simultaneously, sends to the trusted non-3 GPP access network by " gateway control and QoS rule provide " message;
Step 419: the trusted non-3 GPP access network determines that according to IP-CAN session identification 2 this is the relevant policy control information of a newly-built IP-CAN session, so preserve this IP-CAN session identification 2, for this IP-CAN session QoS rule and event trigger are installed, are returned " gateway control and QoS rule provide affirmation " message to P-GW2.
In other embodiments, in step 410, PCRF can not distribute IP-CAN session identification 1, but in " gateway control and QoS rule provide " message, carry home address HoA1 or the Access Point Name APN1 of UE, send to the trusted non-3 GPP access network, be associated with IP-CAN session 1 in order to identify this message; In step 411, the trusted non-3 GPP access network judges it is the relevant policy control information of a newly-built IP-CAN session according to HoA1 or APN1, so preserve HoA1 or APN1, for QoS rule and event trigger are installed in this IP-CAN session, and return " gateway control and QoS rule provide affirmation " message to P-GW1.
Similarly, in the process of UE access business network 2, PCRF also can not distribute IP-CAN session identification 2, but replaces with home address HoA2 or the Access Point Name APN1 of UE.
When UE sets up respectively by above-mentioned steps with after the IP of business network 1 and business network 2 is connected, if the business information of business network 1 changes, can trigger PCRF and reformulate PCC and QoS rule, thereby PCRF needs the QoS rule relevant with IP-CAN session 1 in PCC rule among the P-GW1 and the trusted non-3 GPP access network upgraded.The flow process of upgrading as shown in Figure 5, each step is described below:
Step 501: the business information of business network 1 is sent out variation, and is handed down to PCRF, and PCRF reformulates PCC rule and the QoS rule relevant with IP-CAN session 1;
Step 502:PCRF is handed down to the QoS rule of reformulating the trusted non-3 GPP access network of the resident BBERF of having (bearing binding and event reporting function) by " gateway control and policing rule provide " message, carry IP-CAN session identification 1 in the message, relevant in order to show the QoS rule that issues with IP-CAN session 1;
The non-3GPPIP Access Network of step 503:UE and trusted specific mechanism is carried out the strategy that newly issues;
Step 504: the trusted non-3 GPP access network is tied to IP-CAN session 1 according to IP-CAN session identification 1 with the QoS rule that issues, thereby upgrade the QoS rule that IP-CAN session 1 is correlated with, and return " gateway control and policing rule provide affirmation " message to PCRF;
Step 505:PCRF issues the PCC rule of new formulation to P-GW1 by " policy charging rule provides " message;
Step 506:P-GW1 upgrades the PCC rule, returns " policy charging rule provides affirmation " message to PCRF.
In other embodiments, if adopt home address HoA1 and the HoA2 of UE to replace IP-CAN session identification 1 and IP-CAN session identification 2 respectively, then in said process, in the step 502, PCRF with the QoS that reformulates rule by " gateway control and policing rule provide " when message is handed down to the trusted non-3 GPP access network, that carries in the message is the home address HoA1 of UE, relevant with IP-CAN session 1 in order to show the QoS rule that issues; Correspondingly, in the step 504, the trusted non-3 GPP access network is tied to IP-CAN session 1 according to the home address HoA1 of UE with the QoS rule that issues, thereby upgrades the QoS rule that IP-CAN session 1 is correlated with.Here also can replace IP-CAN session identification 1 and the sign of IP-CAN session identification 2 with Access Point Name APN1 and APN2 as the relevant IP-CAN session of indication.
If the business information of business network 2 changes, also can trigger PCRF and reformulate PCC and QoS rule, thereby PCRF needs the QoS rule relevant with IP-CAN session 2 in PCC rule among the P-GW2 and the trusted non-3 GPP access network upgraded.The flow process of upgrading is similar to above-mentioned flow process.
After the IP that UE plays business network 1 and business network 2 by flow process foundation shown in Figure 4 is connected, if UE initiates using the new resource allocation request of business network 1, need PCRF to reformulate PCC and QoS rule, thereby PCRF can upgrade to the QoS rule relevant in PCC rule among the P-GW1 and the trusted non-3 GPP access network with IP-CAN session 1.The process of upgrading as shown in Figure 6, each step is described below:
Step 601: non-3 GPP access network closes the resource allocation request to IP-CAN session 1 of receiving that UE initiates;
Step 602: resident have the trusted non-3 GPP access network of BBERF (bearing binding and event reporting function) to send " gateway control and qos policy rule request " message to PCRF, carried QoS, traffic filter template and the IP-CAN session identification 1 of request in the message;
Step 603:PCRF is tied to IP-CAN session 1 according to IP-CAN session identification 1 with above-mentioned solicited message, and the request of each QoS is made a strategic decision, and formulates PCC and QoS rule;
Step 604:PCRF sends " strategy and charging regulation provide " message to P-GW1, carries the PCC rule of renewal in the message;
Step 605:P-GW1 installs the PCC rule of upgrading, and returns " strategy and charging regulation provide affirmation " message;
Step 606:PCRF sends " gateway control and policing rule provide " message to the trusted non-3 GPP access network, carrying the QoS rule and the IP-CAN session identification 1 of renewal in the message, is the renewal to the QoS rule of IP-CAN session 1 in order to show the QoS rule that issues here;
Step 607: the trusted non-3 GPP access network is tied to IP-CAN session 1 according to IP-CAN session identification 1 with the QoS rule, and its QoS rule is upgraded, trusted non-3 GPP access network specific mechanism implementation strategy.
In other embodiments, if adopt home address HoA1 and the HoA2 of UE to replace IP-CAN session identification 1 and IP-CAN session identification 2 respectively, then in said process, in step 602, the trusted non-3 GPP access network is in " gateway control and qos policy rule request " message that PCRF sends, and that carry is the home address HoA1 of QoS, traffic filter template and the UE of request; Correspondingly, in step 603, PCRF is tied to IP-CAN session 1 according to the home address HoA1 of UE with above-mentioned solicited message.In step 606, PCRF is in " gateway control and policing rule provide " message that the trusted non-3 GPP access network sends, carrying the QoS rule of renewal and the home address HoA1 of UE, is the renewal to the QoS rule of IP-CAN session 1 in order to show the QoS rule that issues here; Correspondingly, in the step 607, the trusted non-3 GPP access network is tied to IP-CAN session 1 according to the home address HoA1 of UE with the QoS rule.Here also can replace IP-CAN session identification 1 and the sign of IP-CAN session identification 2 with Access Point Name APN1 and APN2 as the relevant IP-CAN session of indication.
If UE initiates also to need PCRF to reformulate PCC and QoS rule to using the new resource allocation request of business network 2, thereby PCRF can upgrade the QoS rule relevant with IP-CAN session 2 in PCC rule among the P-GW2 and the trusted non-3 GPP access network.The process of upgrading is similar to the above process.
In other embodiment, UE initiates the resource release request to business network 1, the resource that UE initiates IP-CAN session 1 to the trusted non-3 GPP access network in step 601 discharges, carrying QoS information, the traffic filter template of request resource release in the message of step 602 shows and IP-CAN session identification 1, in the step 603, PCRF is tied to IP-CAN session 1 according to IP-CAN session identification 1 with above-mentioned solicited message, and the request to the QoS that discharges is made a strategic decision, and reformulates PCC and QoS rule; Other steps are similar.
After the IP that UE plays business network 1 and business network 2 by flow process foundation shown in Figure 4 is connected, when UE decision disconnects with being connected of business network 2, can trigger the PCRF issuing message and notify the trusted non-3 GPP access network of the resident BBERF of having to close to delete the QoS rule relevant with deexcitation IP-CAN session 2.The flow process of upgrading as shown in Figure 7, each step is described below:
Step 701:UE decision disconnection is connected with business network 2, sends to P-GW2 and removes to register binding update messages, carries HoA2 in the message, and the lifetime parameter value is 0;
Step 702:P-GW2 sends IP-CAN session termination Indication message to PCRF, and deletion and deexcitation simultaneously be relevant PCC rule of IP-CAN session 2 on it;
The PCC rule that step 703:PCRF deletion IP-CAN session 2 is correlated with is returned IP-hui session termination acknowledge message to P-GW2;
Step 704:P-GW2 notice AAA and HSS are the IP address of UE deletion P-GW2;
Step 705:P-GW2 returns binding acknowledgement message to UE;
The QoS rule that step 706:PCRF deletion IP-CAN session 2 is correlated with, there is the trusted non-3 GPP access network of BBERF to close transmission " the gateway control session termination that PCRF initiates " message to resident, carry IP-CAN session identification 2 in the message, notice trusted non-3 GPP access network closes all relevant QoS rules of deletion and deexcitation IP-CAN session 2;
Step 707: the trusted non-3 GPP access network closes all relevant QoS rules of deletion and deexcitation IP-CAN session 2, and returns " gateway control session that PCRF initiates terminate affirmation " message to PCRF;
In other embodiments, if adopt home address HoAl and the HoA2 of UE to replace IP-CAN session identification 1 and IP-CAN session identification 2 respectively, then in said process, in step 706, PCRF is in " the gateway control session termination that PCRF initiates " message that the trusted non-3 GPP access network sends, and that carries is the home address HoA1 of UE; Here also can replace IP-CAN session identification 1 and the sign of IP-CAN session identification 2 with Access Point Name APN1 and APN2 as the relevant IP-CAN session of indication.
Following examples are UE by trustless non-3GPP IP access network by the attachment flow that different P-GW inserts different business networks, as shown in Figure 8, comprising:
Step 801:UE initiates IKEv2 (Internet Key Exchange Version2, internet key exchange version 2) tunnel establishment procedure, and HSS/AAA carries out the tunnel Certificate Authority to UE;
Step 802:ePDG sends last IKEv2 message to UE, the Care-of Address CoA of configuration UE in the message;
Step 803: resident have the ePDG of BBERF (bearing binding and event reporting function) to send " gateway control session foundation " request message to this PCRF, carries sign NAI and the CoA of UE in the message;
The CAMEL-Subscription-Information of step 804:PCRF strategy Network Based and UE is formulated control strategy, i.e. QoS rule, and send to ePDG, the independent of service that control strategy at this moment follows UE to insert by " gateway control session is set up and confirmed " message;
Step 805:UE carries out the DNS inquiry according to APN1, and Security Association is set up between UE and the P-GW1 in the IP address that obtains the P-GW1 that access service 1 network is provided, and P-GW1 is that UE distributes home address HoA1 in this process;
Step 806:UE sends " Binding Update " request message to P-GW1, carries CoA and HoA1 in the message;
Step 807:P-GW1 sends " indication is set up in the IP-CAN session " message to PCRF, carries CoA, HoA1, NAI and APN1 in the message; PCRF carries out related with gateway control session session according to CoA;
The information of step 808:PCRF and the business network 1 that will insert signatory according to network strategy, user etc. is formulated corresponding PCC rule and event trigger, and sends to P-GW1 by " affirmation is set up in the IP-CAN session " message;
Step 809:P-GW1 returns " binding acknowledgement " message to UE;
The information of step 810:PCRF and the business network 1 that will insert signatory according to network strategy, user etc. are made amendment to the QoS rule of formulating before and are formulated event trigger, PCRF is this IP-CAN session allocation identification IP-CAN session identification 1 simultaneously, and QoS rule, event trigger and the IP-CAN session identification 1 that will revise by " gateway control and QoS rule provide " message send to ePDG;
Step 811:ePDG judges it is the relevant policy control information of a newly-built IP-CAN session according to IP-CAN session identification 1, so preserve this IP-CAN session identification 1, for QoS rule and event trigger are installed in this IP-CAN session, and return " gateway control and QoS rule provide affirmation " message to P-GW1;
Step 812:UE determines access business network 2, carries out DNS inquiry, the IP address that obtains the P-GW2 that access business network 2 is provided according to APN2;
Set up Security Association between step 813:UE and the P-GW2, P-GW2 is that UE distributes home address HoA2 in this process;
Step 814:UE sends " Binding Update " request message to P-GW2, carries CoA and HoA2 in the message;
Step 815:P-GW2 sends " indication is set up in the IP-CAN session " message to PCRF, carries CoA, HoA2, NAI and APN2 in the message, and PCRF carries out related with gateway control session session according to CoA;
The information of step 816:PCRF and the business network 2 that will insert signatory according to network strategy, user etc. is formulated corresponding PCC rule and event trigger, sends to P-GW2 by " the IP-CAN session is set up and confirmed " message;
Step 817:P-GW1 returns " binding acknowledgement " message to UE;
The information of step 818:PCRF and the business network 2 that will insert signatory according to network strategy, user etc. is formulated QoS rule and event trigger, PCRF is this IP-CAN session allocation identification IP-CAN session identification 2 simultaneously, sends to ePDG by " gateway control and QoS rule provide " message;
Step 819:ePDG determines that according to IP-CAN session identification 2 this is the relevant policy control information of a newly-built IP-CAN session, so preserve this IP-CAN session identification 2, for this IP-CAN session QoS rule and event trigger are installed, are returned " gateway control and QoS rule provide affirmation " message to P-GW2.
After UE inserts the 3GPP network by trustless non-3GPP IP access network, similar when resource request that PCC that PCRF initiatively initiates or QoS Policy Updates and UE initiate and resource release flow and UE insert by the non-3GPP IP of trusted access network, repeat no more here.
One embodiment of system of bearing binding of the present invention and event report function strategy control as shown in Figure 9, comprising:
"Policy and Charging Rules Function 901, be used to each IP to connect the Access Network session and formulate control strategy, and the control strategy of formulating sent to bearing binding and event reporting function 902 by message, comprise a sign in this message, this sign is used to indicate the IP-CAN session relevant with this message;
Bearing binding and event reporting function 902, be used for after receiving the message of sending by "Policy and Charging Rules Function 901, according to the sign in the message, with this message and corresponding IP-CAN binding session, and be this IP-CAN session installation, renewal, deletion, activation and deexcitation corresponding control strategies.
In addition, when bearing binding and event reporting function 902 also are used in subscriber equipment initiation renewal configuration or discharge resource request, send a request message to described "Policy and Charging Rules Function 901, comprise a sign in this message, this sign is used to indicate the IP-CAN session relevant with this message;
And after "Policy and Charging Rules Function 901 also can also be used to receive the message of being sent by described bearing binding and event reporting function 902, according to the sign in the message, with this message and corresponding IP-CAN binding session, and reformulate control strategy for this IP-CAN session.
Wherein, the sign in the message can be distributed by "Policy and Charging Rules Function 901, and the sign of each IP-CAN session of 901 times same UE of "Policy and Charging Rules Function is unique; Sign in the message also can adopt existing parameter, and for example the home address of the UE that employing is relevant with certain IP-CAN session or Access Point Name are as the sign of this IP-CAN session.
The above embodiment is the preferred embodiment that proves absolutely that the present invention lifts, and protection scope of the present invention is not limited thereto.Being equal to that those skilled in the art are done on basis of the present invention substitutes or conversion, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (12)
1, the method for a kind of bearing binding and event report function strategy control is characterized in that, may further comprise the steps:
"Policy and Charging Rules Function sends to bearing binding and event reporting function with policy control information and sign, and described sign is used to indicate the IP relevant with this policy control information to connect the Access Network session;
After described bearing binding and event reporting function receive described policy control information and sign, according to sign policy control information is connected the Access Network binding session with corresponding IP, and carries out corresponding operating according to described policy control information.
2, the method shown in claim 1 is characterized in that, described policy control information comprises that rules for quality of service, event trigger, IP connect Access Network session attribute, session termination indication.
3, the method for claim 1 is characterized in that, described sign is distributed by "Policy and Charging Rules Function, and the sign of each IP connection Access Network session under this "Policy and Charging Rules Function is unique.
4, the method for claim 1 is characterized in that, described home address or the Access Point Name that connects the relevant subscriber equipment of Access Network session with IP that be designated.
5, method as claimed in claim 2 is characterized in that, carries out corresponding operating according to described policy control information and comprises:
Install and/or excited service quality rule and event trigger;
Updating service quality rule and event trigger;
Deletion and/or deexcitation rules for quality of service and event trigger.
6, method as claimed in claim 5, it is characterized in that, described bearing binding is after IP is connected Access Network session build-in services quality rule and event trigger with event reporting function, if connecting the business information of Access Network session corresponding service network, this IP changes, need to upgrade rules for quality of service and the event trigger that this IP connects the Access Network session, step of updating is:
The described "Policy and Charging Rules Function of message informing that described business network changes business information;
Described "Policy and Charging Rules Function is reformulated with this IP and is connected the relevant policy control information of Access Network session, and described policy control information and sign sent to described bearing binding and event reporting function, described sign is used to indicate the IP relevant with this policy control information to connect the Access Network session;
Described bearing binding is connected Access Network binding session with this policy control information with corresponding IP according to the sign that receives with event reporting function, and for this IP connects the Access Network session new rules for quality of service and event trigger is installed, and finishes renewal.
7, the method described in claim 5, it is characterized in that, described bearing binding is after IP is connected Access Network session build-in services quality rule and event trigger with event reporting function, if subscriber equipment is initiated using this IP to connect the new resource allocation of Access Network session corresponding service network or discharging request, need to upgrade rules for quality of service and the event trigger that this IP connects the Access Network session, step of updating is:
Described subscriber equipment sends resource allocation or discharges request to described non-third generation partner program network trusty;
Bearing binding in the described non-third generation partner program network trusty and event reporting function send update inquiry information to described "Policy and Charging Rules Function, comprise sign in the described update inquiry information, be used to identify the IP relevant and connect the Access Network session with this message;
After described "Policy and Charging Rules Function is received described update inquiry information, according to the sign in the update inquiry information it is connected the Access Network binding session with corresponding IP, and reformulate and the relevant policy control information of this IP connection Access Network session, and policy control information and sign sent to described bearing binding and event reporting function, described sign is used to indicate the IP relevant with this policy control information to connect the Access Network session;
After described bearing binding and event reporting function receive described policy control information and sign, according to described sign this policy control information is connected the Access Network binding session with corresponding IP, and, finish renewal for this IP connects new rules for quality of service and the event trigger of Access Network session installation.
8, method according to claim 5, it is characterized in that, described bearing binding is after IP is connected Access Network session build-in services quality rule and event trigger with event reporting function, if user's disconnection is connected with business network, trigger policy is bound with event reporting function with the charging rule functions notice and is deleted rules for quality of service and the event trigger that is connected the Access Network session with deexcitation IP, and step comprises:
The subscriber equipment disconnection is connected with business network, sends to grouped data network gateway and removes to register binding update messages;
Packet data network sends IP to "Policy and Charging Rules Function and connects Access Network session termination Indication message;
"Policy and Charging Rules Function deletion IP connects the relevant policy, billing information of Access Network session, send the gateway control session ending message to bearing binding and event reporting function, carry sign in the gateway control session ending message, be used to identify the IP relevant and connect the Access Network session with this message;
After described bearing binding and event reporting function receive described gateway control session ending message and sign, according to described sign this message is connected the Access Network binding session with corresponding IP, deletion is connected the relevant policy control information of Access Network session with deexcitation IP, and returns gateway control session termination acknowledge message to "Policy and Charging Rules Function.
9, the system of a kind of bearing binding and event report function strategy control is characterized in that, comprising:
"Policy and Charging Rules Function is used for policy control information and sign are sent to bearing binding and event reporting function, and described sign is used to indicate the IP relevant with this policy control information to connect the Access Network session;
Bearing binding and event reporting function, be used for after receiving the policy control information and sign that sends by described "Policy and Charging Rules Function, according to described sign, this policy control information is connected the Access Network binding session with corresponding IP, and is this IP connection Access Network session installation, renewal, deletion, activation and deexcitation corresponding control strategies.
10, system as claimed in claim 9 is characterized in that,
Described bearing binding and event reporting function, also be used for when subscriber equipment is initiated to upgrade configuration or discharged resource request, send update inquiry information to described "Policy and Charging Rules Function, comprise a sign in this message, this sign is used to indicate the IP relevant with this message to connect the Access Network session;
Described "Policy and Charging Rules Function, after also being used to receive the message of sending by described bearing binding and event reporting function, according to the sign in the message, this message is connected the Access Network binding session with corresponding IP, and reformulates policy control message for this IP connects the Access Network session.
11, as claim 9 or 10 described systems, it is characterized in that, also comprise:
Described "Policy and Charging Rules Function also is used to each IP under this "Policy and Charging Rules Function to connect the unique sign of Access Network session distribution.
12, as claim 9 or 10 described systems, it is characterized in that described home address or the Access Point Name that connects the relevant subscriber equipment of Access Network session with IP that be designated.
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| PCT/CN2008/071720 WO2009124436A1 (en) | 2008-04-11 | 2008-07-22 | A method and system for policy controlling bberf |
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| CN2008100899638A CN101459951B (en) | 2008-04-11 | 2008-04-11 | Method and system for bearing binding and event reporting function policy control |
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| CN101459951B CN101459951B (en) | 2011-08-24 |
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| WO (1) | WO2009124436A1 (en) |
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- 2008-04-11 CN CN2008100899638A patent/CN101459951B/en not_active Expired - Fee Related
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| CN106161375A (en) * | 2015-04-13 | 2016-11-23 | 中国移动通信集团公司 | Distribution method, device, strategy controller and the grader of business chain mark |
| CN106161375B (en) * | 2015-04-13 | 2019-10-29 | 中国移动通信集团公司 | Distribution method, device, strategy controller and the classifier of business chain mark |
| CN109246173A (en) * | 2017-06-16 | 2019-01-18 | 北京三星通信技术研究有限公司 | The control method and device of session operation |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009124436A1 (en) | 2009-10-15 |
| CN101459951B (en) | 2011-08-24 |
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