CN105516953A - Method and apparatus for selecting policy and charging rules function - Google Patents
Method and apparatus for selecting policy and charging rules function Download PDFInfo
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Abstract
The invention provides a method and apparatus for selecting a policy and charging rules function. The method comprises the steps of acquiring, by a diameter routing agent (DRA), subscription information of a specific business subscribed by a user from a subscription profile Repository (SPR) or a business operation support system (BOSS); and selecting, by the DRA, a policy charging rules function (PCRF) supporting the specific business for user equipment (UE) or an IP connectivity access network (IP-CAN) session according to the subscription information of the specific business. The invention can support selection of different PCRFs for different businesses.
Description
Technical field
The present invention relates to the communications field, particularly a kind of system of selection of "Policy and Charging Rules Function and device.
Background technology
Fig. 1 is third generation partner program (3rdGenerationPartnershipProject in correlation technique, referred to as 3GPP) strategy that defines and charging control architecture (PolicyandChargingControl, referred to as PCC) schematic diagram, as shown in Figure 1, "Policy and Charging Rules Function (PolicyandChargingRulesFunction, referred to as PCRF) is the core of whole PCC framework.PCRF formulates described control strategy to be needed to combine from application function (ApplicationFunction, referred to as AF) business information that receives, from user-subscribed database (SubscriptionProfileRepository, referred to as SPR) user signing contract information that receives, the strategy etc. of operator's configuration.The control strategy formulated for business is handed down to strategy and charge execution function (PolicyandChargingEnforcementFunction by PCRF, referred to as PCEF) or bearing binding and reporting events function (BearerBindingandEventReportFunction, referred to as BBERF) perform.Simultaneously PCRF can subscribe to bearing bed dependent event to PCEF and/or BBERF, timely perception when there is described event with convenient bearing bed, and changes control strategy.PCEF also can support application detection control function.The PCC rule comprising application identities that PCEF can issue according to this locality configuration or PCRF is carried out application and is detected and carry out strategy execution (as gate, being redirected and bandwidth restriction).PCEF is generally positioned on the gateway GW of network, as the grouped data network gateway (PDN-GW) of EPS, connects OCS (Online Charging System) and OFCS (off-line accounting system).In addition, network can also realize applying detection control by disposing separate traffic measuring ability (TrafficDetectionFunction, referred to as TDF).TDF and PCRF is connected by Sd interface, and application detection control (ApplicationDetectionandControl, referred to as the ADC) rule that TDF can issue according to pre-configured or PCRF is carried out application and detected and strategy execution.
In the prior art, usually multiple PCRF is deployed with in a public land mobile network PLMN, now DRA (DiameterRoutingAgent, diameter route agent) these PCRF will be in charge of, and guarantee all to be associated with same PCRF with the session of an IP-CAN (IP connects access network) or relevant All Policies control session (as Gx, Gxx, Sd session) of terminal UE.Hypothesis of the prior art is that this multiple PCRF has identical ability (now DRA usually can according to the selection PCRF of the information on load of number section of UE, IP address or each PCRF).Therefore, DRA does not need to consider that the traffic handing capacity that PCRF is different comes for PCRF is selected in UE or IP-CAN session.
But in some application scenarios, when operator needs to carry out a kind of new business time, (such as red packet business) or operator deploy new data intelligence network on existing business network and PCC framework, operator how to carry out when not changing existing business network and PCC framework business carry out need solve.
Summary of the invention
The technical problem to be solved in the present invention how to support that carrying out different PCRF according to different business selects.
In order to solve the problem, the invention provides a kind of system of selection of "Policy and Charging Rules Function, comprising:
Diameter route agent DRA obtains the CAMEL-Subscription-Information of the specific transactions that user contracts from user-subscribed database SPR or service operation back-up system BOSS;
Described DRA is the "Policy and Charging Rules Function PCRF that UE or IP connects that access network IP-CAN session selection supports to carry out described specific transactions according to described CAMEL-Subscription-Information.
Alternatively, described DRA is that the PCRF that UE or IP-CAN session is selected to support to carry out described specific transactions comprises according to described CAMEL-Subscription-Information:
Described DRA determines according to described CAMEL-Subscription-Information the specific transactions that user contracts;
Described DRA supports the corresponding relation between the specific transactions carried out according to the PCRF of configuration and institute, and the PCRF of determined specific transactions is carried out in selection support;
When deploying one group of PCRF in network and supporting that described specific transactions is carried out, described DRA selects any one PCRF in this group PCRF.
Alternatively, described DRA is also comprise after UE or IP-CAN session selects to support to carry out the PCRF of described specific transactions according to described CAMEL-Subscription-Information:
Described DRA preserves described user ID, corresponding relation between grouped data network PDN mark and the address of selected PCRF.
Alternatively, the CAMEL-Subscription-Information that described DRA obtains from SPR or BOSS the specific transactions that user contracts comprises:
Described DRA receives gateway control session from bearing binding and reporting events function BBERF and sets up message;
Described DRA sets up the user ID and PDN mark of carrying in message according to described gateway control session, search preserved described corresponding relation, cross PCRF if unallocated, then send described user ID and grouped data network PDN identifies to SPR or BOSS by document request message of contracting;
Described DRA receives the CAMEL-Subscription-Information that described SPR or BOSS returns, and therefrom obtains the CAMEL-Subscription-Information of the specific transactions that described user contracts.
Alternatively, described DRA preserves user ID, PDN also comprises after identifying the step of the corresponding relation between the address of selected PCRF:
Described DRA carries the address of selected PCRF in the redirect message sending to described BBERF;
Described DRA when receive strategy and charge execution function PCEF send carry the IP-CAN session establishment Indication message of the IP address distributed to some extent after, according to the user ID of carrying in described IP-CAN session establishment Indication message and PDN identifier lookup preservation described corresponding relation; If have selected PCRF, then in preserved described corresponding relation, add described IP address; The redirect message carrying selected PCRF address is returned to described PCEF.
Alternatively, described DRA preserves user ID, PDN also comprises after identifying the step of the corresponding relation between the address of selected PCRF:
Described DRA sends gateway control session to selected PCRF and sets up message, carries user ID and PDN mark;
Described DRA is when receiving after gateway control session that described PCRF returns sets up acknowledge message, and control session establishment acknowledge message to described BBERF forward gateway, described gateway control session is set up in acknowledge message and carried service quality QoS rule and event trigger;
Described DRA when receive that PCEF sends carry the IP-CAN session establishment Indication message of the IP address distributed to some extent after, according to the described corresponding relation that the user ID of carrying in described IP-CAN session establishment Indication message and PDN identifier lookup are preserved; If have selected PCRF, then in preserved described corresponding relation, add described IP address; Forward described IP-CAN session establishment Indication message to selected PCRF, carry described user ID, PDN mark and IP address; IP-CAN session establishment acknowledge message is returned to described PCEF.
Alternatively, the CAMEL-Subscription-Information that described DRA obtains from SPR or BOSS the specific transactions that user contracts comprises:
Described DRA receives IP-CAN session establishment Indication message from PCEF;
Described DRA is according to the user ID of carrying in described IP-CAN session establishment Indication message and PDN mark, search preserved corresponding relation, cross PCRF if unallocated, then send described user ID and PDN identifies to SPR or BOSS by document request message of contracting;
Described DRA receives the CAMEL-Subscription-Information that described SPR or BOSS returns, and therefrom obtains the CAMEL-Subscription-Information of the specific transactions that described user contracts.
Alternatively, described DRA preserves user ID, PDN also comprises after identifying the step of the corresponding relation between the address of selected PCRF:
Described DRA carries the address of selected PCRF in the redirect message sending to described PCEF.
Alternatively, described DRA preserves user ID, PDN also comprises after identifying the step of the corresponding relation between the address of selected PCRF:
Described IP-CAN session establishment Indication message is transmitted to selected PCRF by described DRA;
Described DRA is after receiving the IP-CAN session establishment acknowledge message that described PCRF returns, return described IP-CAN session establishment acknowledge message to described PCEF, carry strategy in described IP-CAN session establishment acknowledge message and charging control architecture PCC is regular and event trigger.
Present invention also offers a kind of choice device of "Policy and Charging Rules Function, be arranged in diameter route agent DRA, comprise:
CAMEL-Subscription-Information acquisition module, for obtaining the CAMEL-Subscription-Information of the specific transactions that user contracts from user-subscribed database SPR or service operation back-up system BOSS;
Select module, for according to described CAMEL-Subscription-Information being the "Policy and Charging Rules Function PCRF that UE or IP connects that access network IP-CAN session selection supports to carry out described specific transactions.
Alternatively, described selection module is that the PCRF that UE or IP-CAN session is selected to support to carry out described specific transactions refers to according to described CAMEL-Subscription-Information:
Described selection module determines according to described CAMEL-Subscription-Information the specific transactions that user contracts; Supports the corresponding relation between the specific transactions carried out according to the PCRF of configuration and institute, the PCRF of determined specific transactions is carried out in selection support; When deploying one group of PCRF in network and supporting that described specific transactions is carried out, select any one PCRF in this group PCRF.
Alternatively, described device also comprises:
Memory module, for in described selection module being after UE or IP-CAN session selects to support to carry out the PCRF of described specific transactions according to described CAMEL-Subscription-Information, preserve described user ID, corresponding relation between grouped data network PDN mark and the address of selected PCRF.
Alternatively, the CAMEL-Subscription-Information that described CAMEL-Subscription-Information acquisition module obtains from SPR or BOSS the specific transactions that user contracts refers to:
Described CAMEL-Subscription-Information acquisition module receives gateway control session from bearing binding and reporting events function BBERF and sets up message; The user ID and PDN mark of carrying in message is set up according to described gateway control session, search the corresponding relation that described memory module is preserved, cross PCRF if unallocated, then send described user ID and grouped data network PDN identifies to SPR or BOSS by document request message of contracting; Receive the CAMEL-Subscription-Information that described SPR or BOSS returns, therefrom obtain the CAMEL-Subscription-Information of the specific transactions that described user contracts.
Alternatively, described device also comprises:
Interactive module, for after described memory module preserves described corresponding relation, carries the address of selected PCRF in the redirect message sending to described BBERF; When receive strategy and charge execution function PCEF send carry the IP-CAN session establishment Indication message of the IP address distributed to some extent after, according to the user ID of carrying in described IP-CAN session establishment Indication message and PDN identifier lookup memory module preservation described corresponding relation; If have selected PCRF, then described memory module is indicated to add described IP address in preserved described corresponding relation; The redirect message carrying selected PCRF address is returned to described PCEF.
Alternatively, described device also comprises:
Interactive module, for after described memory module preserves described corresponding relation, sends gateway control session to selected PCRF and sets up message, carries described user ID and PDN mark; When receiving after gateway control session that described PCRF returns sets up acknowledge message, forward described gateway control session to described BBERF and set up acknowledge message, described gateway control session is set up in acknowledge message and is carried service quality QoS rule and event trigger; When receive PCEF send carry the IP-CAN session establishment Indication message of the IP address distributed to some extent after, according to the user ID in described IP-CAN session establishment Indication message and PDN identifier lookup memory module preserve described corresponding relation; If have selected PCRF, then described memory module is indicated to add described IP address in preserved described corresponding relation; Forward described IP-CAN session establishment Indication message to selected PCRF, carry described user ID, PDN mark and IP address; IP-CAN session establishment acknowledge message is returned to described PCEF.
Alternatively, the CAMEL-Subscription-Information that described CAMEL-Subscription-Information acquisition module obtains from SPR or BOSS the specific transactions that user contracts refers to:
Described CAMEL-Subscription-Information acquisition module receives IP-CAN session establishment Indication message from PCEF; According to the user ID of carrying in described IP-CAN session establishment Indication message and PDN mark, search the described corresponding relation that described memory module is preserved, cross PCRF if unallocated, then send described user ID and PDN identifies to SPR or BOSS by document request message of contracting; Receive the CAMEL-Subscription-Information that described SPR or BOSS returns, therefrom obtain the CAMEL-Subscription-Information of the specific transactions that described user contracts.
Alternatively, described device also comprises:
Interactive module, for after described memory module preserves described corresponding relation, carries the address of selected PCRF in the redirect message sending to PCEF.
Alternatively, described device also comprises:
Interactive module, for after described memory module preserves described corresponding relation, is transmitted to selected PCRF by described IP-CAN session establishment Indication message; After receiving the IP-CAN session establishment acknowledge message that described PCRF returns, return described IP-CAN session establishment acknowledge message to described PCEF, in described IP-CAN session establishment acknowledge message, carry PCC rule and event trigger.
Technical scheme of the present invention can dispose one or one group of PCRF to support that process new business is carried out in existing PCRF territory, supports that carrying out different PCRF according to different business selects.
Accompanying drawing explanation
Fig. 1 is 3GPP evolved packet system structural representation;
Fig. 2 is the flow chart of the system of selection of "Policy and Charging Rules Function of the present invention;
Fig. 3 is the schematic diagram of framework one of the present invention;
Fig. 4 is the schematic diagram of framework two of the present invention;
Fig. 5 is the flow chart of the system of selection embodiment one of PCRF of the present invention;
Fig. 6 is the flow chart of the system of selection embodiment two of PCRF of the present invention;
Fig. 7 is the flow chart of the system of selection embodiment three of PCRF of the present invention;
Fig. 8 is the flow chart of the system of selection embodiment four of PCRF of the present invention.
Embodiment
Below in conjunction with drawings and Examples, technical scheme of the present invention is described in detail.
It should be noted that, if do not conflicted, each feature in the embodiment of the present invention and embodiment can be combined with each other, all within protection scope of the present invention.In addition, although show logical order in flow charts, in some cases, can be different from the step shown or described by order execution herein.
A system of selection for "Policy and Charging Rules Function, as shown in Figure 2, comprising:
DRA obtains the CAMEL-Subscription-Information of the specific transactions that user contracts from SPR or BOSS (BusinessandOperationSupportSystem, service operation back-up system);
DRA is the PCRF that UE or IP-CAN session is selected to support to carry out described specific transactions according to described CAMEL-Subscription-Information.
As shown in Figure 3, be framework one of the present invention.In framework one, DRA is in charge of the PCRF in PCRF territory, and the implementation of DRA can be redirect agent (RedirectAgent) also can be Proxy agency (ProxyAgent).In this territory, the quantity of PCRF is more than 2 or 2 (PCRF1 and PCRF2 in such as Fig. 3).The CAMEL-Subscription-Information of the specific transactions that in store user signs in SPR.There is interface Sq between DRA and SPR carries out alternately, the specific service profile that user signs.PCRF client (as BBERF, PCEF and AF) and DRA carry out mutual to select the PCRF of this specific transactions of support in this territory.
As shown in Figure 4, be framework two of the present invention.In this framework two, DRA is in charge of the PCRF in PCRF territory, and the implementation of DRA can be redirect agent (RedirectAgent) also can be ProxyAgent (proxy server agency).In this territory, the quantity of PCRF is more than 2 or 2 (PCRF1 and PCRF2 in such as Fig. 4).The CAMEL-Subscription-Information of the specific transactions that in store user signs in BOSS.There is interface Sq between DRA and BOSS carries out alternately, the specific service profile that user signs.PCRF client (as BBERF, PCEF and AF) and DRA carry out mutual to select the PCRF of this specific transactions of support in this territory.
Embodiment one
What the present embodiment described is that user is from E-UTRAN (EvolvedUniversalTerrestrialRadioAccessNetwork, the universal terrestrial Radio Access Network of evolution) access and when adopting PMIPv6 agreement or UE access 3GPP system from trusted non-3 GPP network or trustless non-3 GPP network and adopt PMIPv6 agreement between A-GW (security gateway)/ePDG (packet data gateway of evolution) and P-GW between S-GW (gateway) and P-GW (packet data gateway), set up the selection flow process of IP-CAN conversation procedure and PCRF.DRA is RedirectAgent, realizes based on the structure row shown in Fig. 3 or Fig. 4.Fig. 5 is the flow chart of the system of selection embodiment one of PCRF of the present invention, as shown in Figure 5, specifically comprises the following steps 401 ~ 417:
Step 401:UE is accessed by E-UTRAN or sets up IP-CAN session from trusted non-3 GPP network access request, S-GW or A-GW/ePDG receives the message that IP-CAN session is set up in request, carries user ID and PDN (Packet Data Network) mark in message;
Step 402: the BBERF being positioned at S-GW or A-GW/ePDG sends gateway control session to DRA and sets up message, carries user ID and PDN mark in message;
The corresponding relation that step 403:DRA preserves according to user ID and PDN identifier lookup this locality, find do not have the PDN mark for this user ID or this user ID and correspondence to select PCRF, then DRA sends signing document request message to SPR or BOSS, carries user ID and PDN mark in message;
Step 404:SPR or BOSS returns CAMEL-Subscription-Information according to user ID, comprising the CAMEL-Subscription-Information of the specific transactions that user contracts;
Step 405:DRA preserves CAMEL-Subscription-Information, determines according to described CAMEL-Subscription-Information the specific transactions that user contracts;
The specific transactions that step 406:DRA contracts according to user, and according to the configuration (i.e. PCRF and support between the specific transactions carried out corresponding relation) on DRA, for UE or IP-CAN session selects a support to carry out the PCRF of described specific transactions, preservation user ID, PDN identify the corresponding relation between the address of selected PCRF, carry the address of selected PCRF in the redirect message sending to BBERF;
When deploying one group of PCRF in network and supporting that described specific transactions is carried out, so DRA will select this group PCRF in any one PCRF.
Step 407:BBERF sends gateway control session to PCRF and sets up message, carries user ID and PDN mark in message;
Step 408:PCRF sends signing document request message to SPR, carries user ID and PDN mark in message;
Step 409:SPR returns CAMEL-Subscription-Information;
Step 410:PCRF generates strategy according to CAMEL-Subscription-Information, network strategy, Access Network information etc., as PCC rule, the regular and event trigger of QoS etc.; PCRF returns gateway control session to BBERF and sets up acknowledge message, carries QoS rule and event trigger; BBERF mounting strategy;
Step 411:BBERF place gateway sends request to PCEF place gateway and sets up IP-CAN session, carries user ID and PDN mark in message; PCEF place gateway is set up IP-CAN session distributing IP Address;
Step 412:PCEF sends IP-CAN session establishment Indication message to DRA, the IPAddress (address) carrying user ID, PDN mark in message and distribute;
The corresponding relation that step 413:DRA preserves according to user ID and PDN identifier lookup, finds to have selected PCRF for this IP-CAN session or UE, then upgrades corresponding relation (user ID, PDN mark, IPAddress, PCRF address).DRA returns redirect message to PCEF, carries PCRF address;
Step 414:PCEF sends IP-CAN session establishment Indication message to PCRF, carries user ID, PDN mark and IPAddress in message;
Step 415:PCRF returns PCC rule and the event trigger of corresponding step 410 formulation according to user ID and PDN mark;
Step 416:PCEF place gateway returns response to BBERF place gateway and sets up IP-CAN session, carries IPAddress;
Step 417:BBERF place gateway returns response and sets up IP-CAN session, carries IPAddress.
Through above-mentioned flow process, DRA is the PCRF that this UE or IP-CAN session have selected that the specific transactions that user contracts is carried out in a support, and when user carries out this specific transactions, PCRF generates strategy according to the CAMEL-Subscription-Information of the specific transactions that user contracts.
Embodiment two
What the present embodiment described is that UE is under non-roaming scene, access from E-UTRAN and between S-GW and P-GW, adopt GTP ((GPRSTunnelProtocol, general packet radio service technology tunnel protocol) agreement or UE are from trusted non-3 GPP network or trustless non-3 GPP network access 3GPP system and when adopting GTP agreement between A-GW/ePDG and P-GW, set up the selection flow process of IP-CAN conversation procedure and PCRF.DRA is RedirectAgent, realizes based on the structure row shown in Fig. 3 or Fig. 4.Fig. 6 is the flow chart of the system of selection embodiment two of PCRF of the present invention, specifically comprises the following steps 501 ~ 511:
Step 501:UE is by E-UTRAN or non-3 GPP access EPS, and P-GW receives the message that IP-CAN session is set up in request, carries user ID and PDN mark in message;
Step 502: the PCEF being positioned at P-GW sends IP-CAN session establishment Indication message to DRA, carries user ID and PDN mark in message;
The corresponding relation that step 503:DRA preserves according to user ID and PDN identifier lookup this locality, find do not have the PDN mark for this user or this user and correspondence to select PCRF, then DRA sends signing document request message to SPR or BOSS, carries user ID and PDN mark in message;
Step 504:SPR or BOSS returns CAMEL-Subscription-Information according to user ID, comprising the CAMEL-Subscription-Information of the specific transactions that user contracts;
Step 505:DRA preserves CAMEL-Subscription-Information, determines according to described CAMEL-Subscription-Information the specific transactions that user contracts;
The specific transactions that step 506:DRA contracts according to user, and according to the configuration (i.e. PCRF and support between the specific transactions carried out corresponding relation) on DRA, for UE or IP-CAN session selects a support to carry out the PCRF of described specific transactions, preservation user ID, PDN identify the corresponding relation between the address of selected PCRF, carry the address of selected PCRF in the redirect message sending to PCEF;
When deploying one group of PCRF in network and supporting that described specific transactions is carried out, so DRA will select this group PCRF in any one PCRF.
Step 507:PCEF sends IP-CAN session establishment Indication message to PCRF, carries user ID, PDN mark and IPAddress in message;
Step 508:PCRF sends signing document request message to SPR, carries user ID and PDN mark in message;
Step 509:SPR returns CAMEL-Subscription-Information;
Step 510:PCRF generates strategy according to CAMEL-Subscription-Information, network strategy, Access Network information etc., as PCC rule and event trigger etc.PCRF returns IP-CAN session establishment acknowledge message to PCEF, carries PCC rule and event trigger; PCEF mounting strategy;
Step 511:P-GW returns response and sets up IP-CAN session, carries IPAddress.
Through above-mentioned flow process, DRA is the PCRF that this UE or IP-CAN session have selected that the specific transactions that user contracts is carried out in a support, and when user carries out this specific transactions, PCRF generates strategy according to the CAMEL-Subscription-Information of the specific transactions that user contracts.
Embodiment three
That the present embodiment describes is user from E-UTRAN access and when adopting PMIPv6 agreement or UE from trusted non-3 GPP network or trustless non-3 GPP network access 3GPP system between S-GW and P-GW and adopt PMIPv6 agreement between A-GW/ePDG and P-GW, set up the selection flow process of IP-CAN conversation procedure and PCRF.DRA is ProxyAgent, realizes based on the structure row shown in Fig. 3 or Fig. 4.Fig. 7 is the flow chart of the system of selection embodiment three of PCRF of the present invention, specifically comprises the following steps 601 ~ 617:
Step 601:UE is accessed by E-UTRAN or sets up IP-CAN session from trusted non-3 GPP network access request, S-GW or trusted non-3 GPP access gateway (A-GW) receive the message that IP-CAN session is set up in request, carry user ID and PDN mark in message;
Step 602: the BBERF being positioned at S-GW or A-GW sends gateway control session to DRA and sets up message, carries user ID and PDN mark in message;
The corresponding relation that step 603:DRA preserves according to user ID and PDN identifier lookup this locality, find do not have the PDN mark for this user or this user and correspondence to select PCRF, then DRA sends signing document request message to SPR or BOSS, carries user ID and PDN mark in message;
Step 604:SPR or BOSS returns CAMEL-Subscription-Information according to user ID, comprising the CAMEL-Subscription-Information of the specific transactions that user contracts;
Step 605:DRA preserves CAMEL-Subscription-Information, determines according to described CAMEL-Subscription-Information the specific transactions that user contracts;
The specific transactions that step 606:DRA contracts according to user, and according to the configuration (i.e. PCRF and support between the specific transactions carried out corresponding relation) on DRA, for UE or IP-CAN session selects a support to carry out the PCRF of described specific transactions, preservation user ID, PDN identify the corresponding relation between the address of selected PCRF, DRA sends gateway control session to selected PCRF and sets up message, carries user ID and PDN mark in message;
When deploying one group of PCRF in network and supporting that described specific transactions is carried out, so DRA will select this group PCRF in any one PCRF.
Step 607:PCRF sends signing document request message to SPR, carries user ID and PDN mark in message;
Step 608:SPR returns CAMEL-Subscription-Information;
Step 609:PCRF generates strategy according to CAMEL-Subscription-Information, network strategy, Access Network information etc., as PCC rule, the regular and event trigger of QoS etc.PCRF returns gateway control session to DRA and sets up acknowledge message, carries QoS rule and event trigger.
Step 610:DRA controls session establishment acknowledge message to BBERF forward gateway, carries QoS rule and event trigger; BBERF mounting strategy;
Step 611:BBERF place gateway sends request to PCEF place gateway and sets up IP-CAN session, carries user ID and PDN mark in message; PCEF place gateway is set up IP-CAN session distributing IP Address;
Step 612:PCEF sends IP-CAN session establishment Indication message to DRA, the IPAddress carrying user ID, PDN mark in message and distribute;
Step 613:DRA preserves information according to user ID and PDN identifier lookup, finds to have selected PCRF for this IP-CAN session or UE, then upgrades corresponding relation (user ID, PDN mark, IPAddress, PCRF address).DRA forwards IP-CAN session establishment Indication message to selected PCRF, carries user ID, PDN mark and IP address;
Step 614:PCRF returns PCC rule and the event trigger of corresponding step 609 formulation according to user ID and PDN mark;
Step 615:DRA returns IP-CAN session establishment acknowledge message to PCEF;
Step 616:PCEF place gateway returns response to BBERF place gateway and sets up IP-CAN session, carries IPAddress;
Step 617:BBERF place gateway returns response and sets up IP-CAN session, carries IPAddress.
Through above-mentioned flow process, DRA is the PCRF that this UE or IP-CAN session have selected that the specific transactions that user contracts is carried out in a support, and when user carries out this specific transactions, PCRF generates strategy according to the CAMEL-Subscription-Information of the specific transactions that user contracts.
Embodiment four
What the present embodiment described is that UE is under non-roaming scene, when accessing from E-UTRAN and adopt GTP agreement or UE from trusted non-3 GPP network or trustless non-3 GPP network access 3GPP system between S-GW and P-GW and adopt GTP agreement between A-GW/ePDG and P-GW, set up the selection flow process of IP-CAN conversation procedure and PCRF.DRA is ProxyAgent, realizes based on the structure row shown in Fig. 3 or Fig. 4.Fig. 8 is the flow chart of the system of selection embodiment four of PCRF of the present invention, comprises the following steps 701 ~ 711:
Step 701:UE is by E-UTRAN or non-3 GPP network access EPS, and P-GW receives the message that IP-CAN session is set up in request, carries user ID and PDN mark in message;
Step 702: the PCEF being positioned at P-GW sends IP-CAN session establishment Indication message to DRA, carries user ID in message, PDN mark and IP address;
The corresponding relation that step 703:DRA preserves according to user ID and PDN identifier lookup this locality, find do not have the PDN mark for this user or this user and correspondence to select PCRF, then DRA sends signing document request message to SPR or BOSS, carries user ID and PDN mark in message;
Step 704:SPR or BOSS returns CAMEL-Subscription-Information according to user ID, comprising the CAMEL-Subscription-Information of the specific transactions that user contracts;
Step 705:DRA preserves CAMEL-Subscription-Information, determines according to described CAMEL-Subscription-Information the specific transactions that user contracts;
The specific transactions that step 706:DRA contracts according to user, and according to the configuration (i.e. PCRF and support between the specific transactions carried out corresponding relation) on DRA, for the PCRF that UE or IP-CAN session selects a support to commence business, preserve user ID, PDN mark, corresponding relation between IP address and the address of selected PCRF.IP-CAN session establishment Indication message is transmitted to this PCRF by DRA;
When deploying one group of PCRF in network and supporting that described specific transactions is carried out, so DRA will select this group PCRF in any one PCRF.
Step 707:PCRF sends signing document request message to SPR, carries user ID and PDN mark in message;
Step 708:SPR returns CAMEL-Subscription-Information;
Step 709:PCRF generates strategy according to CAMEL-Subscription-Information, network strategy, Access Network information etc., as PCC rule and event trigger etc.PCRF returns IP-CAN session establishment acknowledge message to DRA, carries PCC rule and event trigger.
Step 710:DRA returns IP-CAN session establishment acknowledge message to PCEF, carries PCC rule and event trigger in message; PCEF mounting strategy;
Step 711:P-GW returns response and sets up IP-CAN session, carries IPAddress.
Through above-mentioned flow process, DRA is the PCRF that this UE or IP-CAN session have selected that the specific transactions that user contracts is carried out in a support, and when user carries out this specific transactions, PCRF generates strategy according to the CAMEL-Subscription-Information of the specific transactions that user contracts.
In above all embodiments, after the enhancing of existing DRA is supported that DRA and SPR/BOSS intercommunication obtains the CAMEL-Subscription-Information of specific transactions, be the PCRF that UE or IP-CAN session selects support specific transactions to carry out.In other embodiments, also can realize in the following manner: below dispose an eDRA (DRA of evolution) at existing DRA, this eDRA can obtain the CAMEL-Subscription-Information of specific transactions with SPR/BOSS intercommunication.If user does not have the CAMEL-Subscription-Information of specific transactions, so eDRA is by PCRF common for selection one; Otherwise selection one is supported the PCRF that respective specific business is carried out by eDRA.Concrete flow process and Fig. 5 ~ Fig. 8 similar, repeat no more.
A choice device for "Policy and Charging Rules Function, is arranged in diameter route agent DRA, comprises:
CAMEL-Subscription-Information acquisition module, for obtaining the CAMEL-Subscription-Information of the specific transactions that user contracts from user-subscribed database SPR or service operation back-up system BOSS;
Select module, for according to described CAMEL-Subscription-Information being the "Policy and Charging Rules Function PCRF that UE or IP connects that access network IP-CAN session selection supports to carry out described specific transactions.
Alternatively, described selection module is that the PCRF that UE or IP-CAN session is selected to support to carry out described specific transactions refers to according to described CAMEL-Subscription-Information:
Described selection module determines according to described CAMEL-Subscription-Information the specific transactions that user contracts; Supports the corresponding relation between the specific transactions carried out according to the PCRF of configuration and institute, the PCRF of determined specific transactions is carried out in selection support; When deploying one group of PCRF in network and supporting that described specific transactions is carried out, select any one PCRF in this group PCRF.
Alternatively, described device also comprises: memory module, for in described selection module being after UE or IP-CAN session selects to support to carry out the PCRF of described specific transactions according to described CAMEL-Subscription-Information, preserve user ID, corresponding relation between grouped data network PDN mark and the address of selected PCRF.
Alternatively, the CAMEL-Subscription-Information that described CAMEL-Subscription-Information acquisition module obtains from SPR or BOSS the specific transactions that user contracts refers to:
Described CAMEL-Subscription-Information acquisition module receives gateway control session from bearing binding and reporting events function BBERF and sets up message; The user ID and PDN mark of carrying in message is set up according to described gateway control session, search the corresponding relation that described memory module is preserved, cross PCRF if unallocated, then send described user ID and grouped data network PDN identifies to SPR or BOSS by document request message of contracting; Receive the CAMEL-Subscription-Information that described SPR or BOSS returns, therefrom obtain the CAMEL-Subscription-Information of the specific transactions that described user contracts.
Alternatively, described device also comprises: interactive module, for after described memory module preserves described corresponding relation, carries the address of selected PCRF in the redirect message sending to described BBERF; When receive strategy and charge execution function PCEF send carry the IP-CAN session establishment Indication message of the IP address distributed to some extent after, according to the user ID of carrying in described IP-CAN session establishment Indication message and PDN identifier lookup memory module preservation described corresponding relation; If have selected PCRF, then described memory module is indicated to add described IP address in preserved described corresponding relation; The redirect message carrying selected PCRF address is returned to described PCEF.
Alternatively, described device also comprises: interactive module, for after described memory module preserves described corresponding relation, sends gateway control session set up message to selected PCRF, carries described user ID and PDN mark; When receiving after gateway control session that described PCRF returns sets up acknowledge message, forward described gateway control session to described BBERF and set up acknowledge message, described gateway control session is set up in acknowledge message and is carried service quality QoS rule and event trigger; When receive PCEF send carry the IP-CAN session establishment Indication message of the IP address distributed to some extent after, according to the user ID in described IP-CAN session establishment Indication message and PDN identifier lookup memory module preserve described corresponding relation; If have selected PCRF, then described memory module is indicated to add described IP address in preserved described corresponding relation; Forward described IP-CAN session establishment Indication message to selected PCRF, carry described user ID, PDN mark and IP address; IP-CAN session establishment acknowledge message is returned to described PCEF.
Alternatively, the CAMEL-Subscription-Information that described CAMEL-Subscription-Information acquisition module obtains from SPR or BOSS the specific transactions that user contracts refers to:
Described CAMEL-Subscription-Information acquisition module receives IP-CAN session establishment Indication message from PCEF; According to the user ID of carrying in described IP-CAN session establishment Indication message and PDN mark, search the described corresponding relation that described memory module is preserved, cross PCRF if unallocated, then send described user ID and PDN identifies to SPR or BOSS by document request message of contracting; Receive the CAMEL-Subscription-Information that described SPR or BOSS returns, therefrom obtain the CAMEL-Subscription-Information of the specific transactions that described user contracts.
Alternatively, described device also comprises: interactive module, for after described memory module preserves described corresponding relation, carries the address of selected PCRF in the redirect message sending to PCEF.
Alternatively, described device also comprises: interactive module, for after described memory module preserves described corresponding relation, described IP-CAN session establishment Indication message is transmitted to selected PCRF; After receiving the IP-CAN session establishment acknowledge message that described PCRF returns, return described IP-CAN session establishment acknowledge message to described PCEF, in described IP-CAN session establishment acknowledge message, carry PCC rule and event trigger.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection range that all should belong to claim of the present invention.
Claims (18)
1. a system of selection for "Policy and Charging Rules Function, comprising:
Diameter route agent DRA obtains the CAMEL-Subscription-Information of the specific transactions that user contracts from user-subscribed database SPR or service operation back-up system BOSS;
Described DRA is the "Policy and Charging Rules Function PCRF that UE or IP connects that access network IP-CAN session selection supports to carry out described specific transactions according to described CAMEL-Subscription-Information.
2. the method for claim 1, is characterized in that, described DRA is that the PCRF that UE or IP-CAN session is selected to support to carry out described specific transactions comprises according to described CAMEL-Subscription-Information:
Described DRA determines according to described CAMEL-Subscription-Information the specific transactions that user contracts;
Described DRA supports the corresponding relation between the specific transactions carried out according to the PCRF of configuration and institute, and the PCRF of determined specific transactions is carried out in selection support;
When deploying one group of PCRF in network and supporting that described specific transactions is carried out, described DRA selects any one PCRF in this group PCRF.
3. method as claimed in claim 1 or 2, is characterized in that, described DRA is also comprise after UE or IP-CAN session selects to support to carry out the PCRF of described specific transactions according to described CAMEL-Subscription-Information:
Described DRA preserves described user ID, corresponding relation between grouped data network PDN mark and the address of selected PCRF.
4. method as claimed in claim 3, is characterized in that, the CAMEL-Subscription-Information that described DRA obtains from SPR or BOSS the specific transactions that user contracts comprises:
Described DRA receives gateway control session from bearing binding and reporting events function BBERF and sets up message;
Described DRA sets up the user ID and PDN mark of carrying in message according to described gateway control session, search preserved described corresponding relation, cross PCRF if unallocated, then send described user ID and grouped data network PDN identifies to SPR or BOSS by document request message of contracting;
Described DRA receives the CAMEL-Subscription-Information that described SPR or BOSS returns, and therefrom obtains the CAMEL-Subscription-Information of the specific transactions that described user contracts.
5. method as claimed in claim 4, is characterized in that, described DRA preserves user ID, PDN also comprises after identifying the step of the corresponding relation between the address of selected PCRF:
Described DRA carries the address of selected PCRF in the redirect message sending to described BBERF;
Described DRA when receive strategy and charge execution function PCEF send carry the IP-CAN session establishment Indication message of the IP address distributed to some extent after, according to the user ID of carrying in described IP-CAN session establishment Indication message and PDN identifier lookup preservation described corresponding relation; If have selected PCRF, then in preserved described corresponding relation, add described IP address; The redirect message carrying selected PCRF address is returned to described PCEF.
6. method as claimed in claim 4, is characterized in that, described DRA preserves user ID, PDN also comprises after identifying the step of the corresponding relation between the address of selected PCRF:
Described DRA sends gateway control session to selected PCRF and sets up message, carries user ID and PDN mark;
Described DRA is when receiving after gateway control session that described PCRF returns sets up acknowledge message, and control session establishment acknowledge message to described BBERF forward gateway, described gateway control session is set up in acknowledge message and carried service quality QoS rule and event trigger;
Described DRA when receive that PCEF sends carry the IP-CAN session establishment Indication message of the IP address distributed to some extent after, according to the described corresponding relation that the user ID of carrying in described IP-CAN session establishment Indication message and PDN identifier lookup are preserved; If have selected PCRF, then in preserved described corresponding relation, add described IP address; Forward described IP-CAN session establishment Indication message to selected PCRF, carry described user ID, PDN mark and IP address; IP-CAN session establishment acknowledge message is returned to described PCEF.
7. method as claimed in claim 3, is characterized in that, the CAMEL-Subscription-Information that described DRA obtains from SPR or BOSS the specific transactions that user contracts comprises:
Described DRA receives IP-CAN session establishment Indication message from PCEF;
Described DRA is according to the user ID of carrying in described IP-CAN session establishment Indication message and PDN mark, search preserved corresponding relation, cross PCRF if unallocated, then send described user ID and PDN identifies to SPR or BOSS by document request message of contracting;
Described DRA receives the CAMEL-Subscription-Information that described SPR or BOSS returns, and therefrom obtains the CAMEL-Subscription-Information of the specific transactions that described user contracts.
8. method as claimed in claim 7, is characterized in that, described DRA preserves user ID, PDN also comprises after identifying the step of the corresponding relation between the address of selected PCRF:
Described DRA carries the address of selected PCRF in the redirect message sending to described PCEF.
9. method as claimed in claim 7, is characterized in that, described DRA preserves user ID, PDN also comprises after identifying the step of the corresponding relation between the address of selected PCRF:
Described IP-CAN session establishment Indication message is transmitted to selected PCRF by described DRA;
Described DRA is after receiving the IP-CAN session establishment acknowledge message that described PCRF returns, return described IP-CAN session establishment acknowledge message to described PCEF, carry strategy in described IP-CAN session establishment acknowledge message and charging control architecture PCC is regular and event trigger.
10. a choice device for "Policy and Charging Rules Function, is arranged in diameter route agent DRA, it is characterized in that, comprising:
CAMEL-Subscription-Information acquisition module, for obtaining the CAMEL-Subscription-Information of the specific transactions that user contracts from user-subscribed database SPR or service operation back-up system BOSS;
Select module, for according to described CAMEL-Subscription-Information being the "Policy and Charging Rules Function PCRF that UE or IP connects that access network IP-CAN session selection supports to carry out described specific transactions.
11. devices as claimed in claim 10, is characterized in that, described selection module is that the PCRF that UE or IP-CAN session is selected to support to carry out described specific transactions refers to according to described CAMEL-Subscription-Information:
Described selection module determines according to described CAMEL-Subscription-Information the specific transactions that user contracts; Supports the corresponding relation between the specific transactions carried out according to the PCRF of configuration and institute, the PCRF of determined specific transactions is carried out in selection support; When deploying one group of PCRF in network and supporting that described specific transactions is carried out, select any one PCRF in this group PCRF.
12. devices as described in claim 11 or 12, is characterized in that, also comprise:
Memory module, for in described selection module being after UE or IP-CAN session selects to support to carry out the PCRF of described specific transactions according to described CAMEL-Subscription-Information, preserve described user ID, corresponding relation between grouped data network PDN mark and the address of selected PCRF.
13. devices as claimed in claim 12, is characterized in that, the CAMEL-Subscription-Information that described CAMEL-Subscription-Information acquisition module obtains from SPR or BOSS the specific transactions that user contracts refers to:
Described CAMEL-Subscription-Information acquisition module receives gateway control session from bearing binding and reporting events function BBERF and sets up message; The user ID and PDN mark of carrying in message is set up according to described gateway control session, search the corresponding relation that described memory module is preserved, cross PCRF if unallocated, then send described user ID and grouped data network PDN identifies to SPR or BOSS by document request message of contracting; Receive the CAMEL-Subscription-Information that described SPR or BOSS returns, therefrom obtain the CAMEL-Subscription-Information of the specific transactions that described user contracts.
14. devices as claimed in claim 13, is characterized in that, also comprise:
Interactive module, for after described memory module preserves described corresponding relation, carries the address of selected PCRF in the redirect message sending to described BBERF; When receive strategy and charge execution function PCEF send carry the IP-CAN session establishment Indication message of the IP address distributed to some extent after, according to the user ID of carrying in described IP-CAN session establishment Indication message and PDN identifier lookup memory module preservation described corresponding relation; If have selected PCRF, then described memory module is indicated to add described IP address in preserved described corresponding relation; The redirect message carrying selected PCRF address is returned to described PCEF.
15. devices as claimed in claim 13, is characterized in that, also comprise:
Interactive module, for after described memory module preserves described corresponding relation, sends gateway control session to selected PCRF and sets up message, carries described user ID and PDN mark; When receiving after gateway control session that described PCRF returns sets up acknowledge message, forward described gateway control session to described BBERF and set up acknowledge message, described gateway control session is set up in acknowledge message and is carried service quality QoS rule and event trigger; When receive PCEF send carry the IP-CAN session establishment Indication message of the IP address distributed to some extent after, according to the user ID in described IP-CAN session establishment Indication message and PDN identifier lookup memory module preserve described corresponding relation; If have selected PCRF, then described memory module is indicated to add described IP address in preserved described corresponding relation; Forward described IP-CAN session establishment Indication message to selected PCRF, carry described user ID, PDN mark and IP address; IP-CAN session establishment acknowledge message is returned to described PCEF.
16. devices as claimed in claim 12, is characterized in that, the CAMEL-Subscription-Information that described CAMEL-Subscription-Information acquisition module obtains from SPR or BOSS the specific transactions that user contracts refers to:
Described CAMEL-Subscription-Information acquisition module receives IP-CAN session establishment Indication message from PCEF; According to the user ID of carrying in described IP-CAN session establishment Indication message and PDN mark, search the described corresponding relation that described memory module is preserved, cross PCRF if unallocated, then send described user ID and PDN identifies to SPR or BOSS by document request message of contracting; Receive the CAMEL-Subscription-Information that described SPR or BOSS returns, therefrom obtain the CAMEL-Subscription-Information of the specific transactions that described user contracts.
17. devices as claimed in claim 16, is characterized in that, also comprise:
Interactive module, for after described memory module preserves described corresponding relation, carries the address of selected PCRF in the redirect message sending to PCEF.
18. devices as claimed in claim 16, is characterized in that, also comprise:
Interactive module, for after described memory module preserves described corresponding relation, is transmitted to selected PCRF by described IP-CAN session establishment Indication message; After receiving the IP-CAN session establishment acknowledge message that described PCRF returns, return described IP-CAN session establishment acknowledge message to described PCEF, in described IP-CAN session establishment acknowledge message, carry PCC rule and event trigger.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410559086.1A CN105516953A (en) | 2014-10-20 | 2014-10-20 | Method and apparatus for selecting policy and charging rules function |
| PCT/CN2015/076193 WO2016062026A1 (en) | 2014-10-20 | 2015-04-09 | Method and device for selecting policy and charging rules function |
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| CN201410559086.1A CN105516953A (en) | 2014-10-20 | 2014-10-20 | Method and apparatus for selecting policy and charging rules function |
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