CN104853332A - Visit policy control method and device - Google Patents

Visit policy control method and device Download PDF

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Publication number
CN104853332A
CN104853332A CN201410053315.2A CN201410053315A CN104853332A CN 104853332 A CN104853332 A CN 104853332A CN 201410053315 A CN201410053315 A CN 201410053315A CN 104853332 A CN104853332 A CN 104853332A
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China
Prior art keywords
vpcrf
hpcrf
policy
request
visited place
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CN201410053315.2A
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Chinese (zh)
Inventor
吴锦花
王刚
吴近峰
郑兴明
金海�
郭雅如
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ZTE Corp
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ZTE Corp
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Priority to CN201410053315.2A priority Critical patent/CN104853332A/en
Publication of CN104853332A publication Critical patent/CN104853332A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance or administration or management of packet switching networks
    • H04L41/08Configuration management of network or network elements
    • H04L41/0893Assignment of logical groupings to network elements; Policy based network management or configuration
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M15/00Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/66Policy and charging system
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M15/00Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/80Rating or billing plans; Tariff determination aspects
    • H04M15/8038Roaming or handoff
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24Accounting or billing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/02Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks

Abstract

The invention discloses a visit policy control method and device, and the method comprises the steps: a VPCRF (visit policy and charging rule functional entity) receives an IP-CAN conversation building request transmitted by a VPCEF (visit policy and charging execution functional entity), and transmits the IP-CAN conversation building request to an HPCRF (home policy and charging rule functional entity); the VPCRF receives a PCC ( policy control and charging control function) rule transmitted by the HPCRF, and transmits the PCC rule to the VPCEF, wherein the PCC rule is established by the HPCRF according to the IP-CAN conversation building request and contract information. The method irons out the defects of Gx roaming schemes based on VPCEF and HPCRF in related technologies, and has the beneficial effects: improving the policy authority limit of the VPCRF and achieving visit policy control and roaming local business.

Description

Visited place policy control method and device
Technical field
The present invention relates to the communications field, in particular to a kind of visited place policy control method and device.
Background technology
Policy control and charging controlling functions (Policy and Charging Control, be called for short PCC) each functional entity and dispose as follows: "Policy and Charging Rules Function entity (Policy and Charging Rules Function, be called for short PCRF), strategy and charging execution function entity (Policy and Charging Enforcement Function, be called for short PCEF) be present in grouped data network gateway (Packet Data Network Gateway, be called for short P-GW or PDN GW) in, bearing binding and event reporting function entity (Bearer Binding and Event Report Function, be called for short BBERF) gateway (ServingGateway can be present in, be called for short S-GW) in, Application Function (the Application Function of business, be called for short AF) be present in carrier network agreement (Internet Protocol, IP) business network, user-subscribed database (Subscription Profile Repository, be called for short SPR) can with home subscriber server (Home Subscriber Server, be called for short HSS) unification.PCC realizes UE being access packet data network (Packet Data Network by above functional entity, being called for short PDN) IP that sets up connects the policy and charging control of Access Network (IP Connectivity Access Network is called for short IP-CAN) session.
Fig. 1 is according to the non-roaming configuration diagram of the PCC of correlation technique, as shown in Figure 1, the formulation of PCRF primary responsibility strategy and charging regulation, by Gx interface, the PCC of formulation strategy and charging regulation are handed down to PCEF, PCEF installs, perform PCC strategy, and report dependent event, charge information mutual with charge system.AF provides business information by Rx interface to PCRF, and SPR saves the business information that user contracts, the business information that PCRF can be contracted to SPR inquiring user by Sp interface.Online charging information is sent to Online Charging System (Online Charging System by Gy interface by PCEF, be called for short OSC), by Gz interface, offline charging information is sent to off-line accounting system (Offline Charging System, be called for short OFCS), wherein, OSC is responsible for the statistics of online charging.PCEF also can strengthen application measuring ability (Application DetectionControl is called for short ADC).Stream is detected entity (Traffic Detection Function is called for short TDF) and is connected by Sd interface with PCRF, and the application detection control rule that TDF can issue according to pre-configured or PCRF is carried out application and detected and strategy execution.
Grouping system (the Evolved Packet System of evolution, be called for short EPS) a public land mobile telephone network (PublicLand Mobile Network, be called for short PLMN) in may there is multiple PCRF node, and all PCRF node belong to one or more Diameter (PCRF) territory.The policy and charging control information of an IP-CAN session of UE is only determined by a PCRF.The ends such as all PCEF or BBERF relevant in order to ensure an IP-CAN session or AF are all associated with same PCRF, EPS is at each Diameter(PCRF) introduce a logic functional block Diameter route agent (DiameterRouting Agent is called for short DRA) in territory.When UE will be established to the IP-CAN session of a PDN, select a PCRF by DRA for this IP-CAN session, PCEF or BBERF relevant to this IP-CAN session is associated with on selected PCRF by DRA.The AF that this IP-CAN session is correlated with also can be associated with selected PCRF by DRA simultaneously.
DRA can according to network strategy, for different PCRF is selected in the different IP-CAN session of UE, now, same UE establishes multiple IP-CAN session, also same PCRF can be selected for all IP-CAN sessions of UE, namely DRA selects PCRF can based on UE rank, also can based on IP-CAN rank.
When user roams into visited place, there are two kinds of modes: ownership place route access (home routed access) and local break-out access (local breakout access).Fig. 2 roams visited place access architecture schematic diagram according to the PCC of correlation technique, as shown in Figure 2, for local break-out access scene, namely the PCC framework under LBO roaming scence, PCEF is positioned at visited network, and the information interaction of visited network and home network is by visited network PCRF(VPCRF) and home network PCRF(HPCRF) between the transmission of roaming interface S9 interface.When user accesses at access zone network, VPCRF sets up S9 session/sub-session by S9 interface requests, and HPCRF formulates PCC strategy, and issue PCC rule to VPCRF, forward pass is to execution such as PCEF/BBERF.For the access of ownership place route, PCEF is positioned at belonging area network, and BBERF is positioned at access zone network, and the QoS Rule Information generated by HPCRF by roaming S9 interface between VPCRF and HPCRF is handed down to BBERF installs execution.
In correlation technique, by disposing above S9 interface, realizing the request of resource authorization under roaming scence between HPCRF and VPCRF and charging policy and issuing.Further, a kind of improved procedure do not existed when between two zone networks when S9 disposes is: realize ownership place HPCRF by the PCEF of visited network and the Gx interface (comprise and there is DRA) of ownership HPCRF and control the strategy of visited place and charging.When Diameter territory, Radix Angelicae Sinensis possession exists multiple PCRF, need the selection being realized HPCRF by ownership place DRA.Alternatively, the Gx session of visited place PCEF and HPCRF is by visited place V-DRA route.
The roaming scenarios based on Gx mouth that above-described PCEF and HPCRF connects, can solve roaming place and ownership place accesses without the roaming under S9 interface deployment scenario.But, there is fatal defect in relative S9 interface scheme.For S9 interface, after HPCRF create-rule is handed down to VPCRF, VPCRF according to local migration efficiency and demand, can carry out tactful secondary-confirmation.If this mandate does not meet local policy, cannot reach the resource requirement of VPCRF, VPCRF can refuse this mandate Sum fanction, sends refuse information to HPCRF, and carries the authorization resources of Reason For Denial and expectation.HPCRF can carry out Developing Tactics according to the refuse information of VPCRF, issues new resource authorization Sum fanction to VPCRF.And this improvement project HPCRF without S9 interface directly authorizes and issue rule to visited place PCEF, then visited place loses the controlling functions of local policy controlling functions under this roaming scence and local policy superposition, screening ownership place strategy.The strategic decision-making body VPCRF of visited place cannot the resource authorization of perception ownership place and strategic decision-making, and thus the local policy of access zone network and operation demand cannot meet.
For roaming access network, especially roaming home ground access scene, except local policy lost efficacy, the characteristic service of the unique competitiveness of roaming place network self also cannot be carried out.For ownership place VIP user, even if local network resources is nervous, also need to provide the strategy more excellent compared with domestic consumer according to ownership place strategy, the roaming scenarios of the existing Gx of the giving mouth of this demand also cannot meet.Roaming place network becomes pipeline pure between home network and its contracted user, the service differentiation operation that this and current characteristic service appear, and the market of fierceness contend in operator's demand of network transmission data being strengthened to the intelligent pipeline operation of tactful management and control and right of speech run in the opposite direction.
Realize the local policy authority of access zone network to roamer, and roam carrying out of local service, become problem demanding prompt solution.
For in correlation technique based on the defect problem of the Gx mouth roaming scenarios of visited place PCEF and HPCRF, at present effective solution is not yet proposed.
Summary of the invention
The invention provides a kind of visited place policy control method and device, at least to solve the problem.
According to an aspect of the present invention, provide a kind of visited place policy control method, comprise: visited place "Policy and Charging Rules Function entity VPCRF receives the IP-CAN session establishment request of visited place strategy and charging execution function entity VPCEF transmission, and the request of described IP-CAN session establishment is sent to ownership place "Policy and Charging Rules Function entity HPCRF; Described VPCRF receives policy control and the charging controlling functions PCC rule of described HPCRF transmission, and described PCC rule is sent to described VPCEF, wherein, described PCC rule is that described HPCRF formulates according to the request of described IP-CAN session establishment and CAMEL-Subscription-Information.
Preferably, after described VPCRF receives the IP-CAN session establishment request of described VPCEF transmission, described method also comprises: described VPCRF upgrades the parameter of carrying in the request of described IP-CAN session establishment according to local policy.
Preferably, after described VPCRF receives the described PCC rule of described HPCRF transmission, described method also comprises, and described VPCRF revises described PCC rule according to local policy.
Preferably, described method comprises: when visited place exists multiple VPCRF, and different IP-CAN sessions can choose different VPCRF.
Preferably, described VPCRF is the relaying network element of described VPCEF to described HPCRF, route network element, or redirected network element.
Preferably, the interface between described VPCRF and described HPCRF is Gx class interface or IP-CAN session-level S9 interface.
Preferably, described Gx class interface is the Gx interface strengthened, and the granularity of described IP-CAN session-level S9 interface is different from the granularity of S9 interface.
According to a further aspect in the invention, provide a kind of visited place policy control method, comprising: visited place strategy and charging execution function entity VPCEF send the request of IP-CAN session establishment via visited place "Policy and Charging Rules Function entity VPCRF to ownership place "Policy and Charging Rules Function entity HPCRF; Described VPCEF receives the policy control and charging controlling functions PCC rule that described HPCRF sends via described VPCRF, and wherein, described PCC rule is that described HPCRF is according to the request of described IP-CAN session establishment and CAMEL-Subscription-Information formulation; Described VPCEF performs described PCC rule.
Preferably, described method also comprises: when visited place exists multiple VPCRF, and different IP-CAN sessions can choose different VPCRF.
According to another aspect of the invention, provide a kind of visited place policy control method, the IP-CAN session establishment request that ownership place "Policy and Charging Rules Function entity HPCRF reception visited place strategy and charging execution function entity VPCEF send via visited place "Policy and Charging Rules Function entity VPCRF; Described HPCRF generates strategy according to the request of described IP-CAN session establishment and CAMEL-Subscription-Information and controls and charging controlling functions PCC rule, and described PCC rule is sent to described VPCEE via described VPCRF.
Preferably, when the request of described IP-CAN session establishment is via described VPCRF, the parameter in the request of described IP-CAN session establishment by described VPCRF according to the local policy of described VPCRF upgrade.
Preferably, when visited place exists multiple VPCRF, different IP-CAN sessions can choose different VPCRF.
Preferably, the interface between described VPCRF and described HPCRF is the S9 interface of Gx class interface or IP-CAN session-level.
According to another aspect of the invention, provide a kind of visited place policy control device, described device is positioned on the "Policy and Charging Rules Function entity VPCRF of visited place, described device comprises: the first transceiver module, for receiving the IP-CAN session establishment request of visited place strategy and charging execution function entity VPCEF transmission, and the request of described IP-CAN session establishment is sent to ownership place "Policy and Charging Rules Function entity HPCRF; Second transceiver module, for receiving policy control and the charging controlling functions PCC rule of described HPCRF transmission, and described PCC rule is sent to described VPCEF, wherein, described PCC rule is that described HPCRF formulates according to the request of described IP-CAN session establishment and CAMEL-Subscription-Information.
According to another aspect of the invention, provide a kind of visited place policy control device, be positioned on visited place strategy and charging execution function entity VPCEF, described device comprises: sending module, for sending the request of IP-CAN session establishment via visited place "Policy and Charging Rules Function entity VPCRF to ownership place "Policy and Charging Rules Function entity HPCRF; Receiver module, for receiving the policy control and charging controlling functions PCC rule that described HPCRF sends via described VPCRF, wherein, described PCC rule is that described HPCRF is according to the request of described IP-CAN session establishment and CAMEL-Subscription-Information formulation; Executive Module, for performing described PCC rule.
According to another aspect of the invention, provide a kind of visited place policy control device, be positioned on ownership place "Policy and Charging Rules Function entity HPCRF, this device comprises: request receiving module, for receiving visited place strategy and the IP-CAN session establishment request that sends via visited place "Policy and Charging Rules Function entity VPCRF of charging execution function entity VPCEF; Module is formulated in session, for control and the charging controlling functions PCC rule of generating strategy according to the request of described IP-CAN session establishment and CAMEL-Subscription-Information, and described PCC rule is sent to described VPCEE via described VPCRF.
Pass through the present invention, VPCRF is adopted to receive the IP-CAN session establishment request of VPCEF transmission, and the request of IP-CAN session establishment is sent to HPCRF, VPCRF receives the PCC rule that HPCRF sends, and PCC rule is sent to VPCEF, wherein, PCC rule is that HPCRF formulates according to the request of IP-CAN session establishment and CAMEL-Subscription-Information, solve the defect problem based on the Gx mouth roaming scenarios of VPCEF and HPCRF in correlation technique, and then reach the effect strengthening VPCRF policy permissions and realize visited place policy control and roam local service.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the non-roaming configuration diagram of the PCC of correlation technique;
Fig. 2 roams visited place access architecture schematic diagram according to the PCC of correlation technique;
Fig. 3 is the flow chart of the visited place policy control method one according to the embodiment of the present invention;
Fig. 4 is the flow chart of the visited place policy control method two according to the embodiment of the present invention;
Fig. 5 is the flow chart of the visited place policy control method three according to the embodiment of the present invention;
Fig. 6 is the structural representation of the visited place policy control device one according to the embodiment of the present invention;
Fig. 7 is the structural representation of the visited place policy control device two according to the embodiment of the present invention;
Fig. 7 a is the structural representation of the visited place policy control device three according to the embodiment of the present invention;
Fig. 8 is the flow chart of visited place policy control method one according to the preferred embodiment of the invention; And
Fig. 9 is the flow chart of visited place policy control method two according to the preferred embodiment of the invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Embodiments provide a kind of visited place policy control method, Fig. 3 is the flow chart of the visited place policy control method one according to the embodiment of the present invention, the method is applied in the roaming scence not having to dispose or use S9 interface, and as shown in Figure 3, the method comprises the following steps:
Step S302, VPCRF receive the IP-CAN session establishment request that VPCEF sends, and the request of IP-CAN session establishment is sent to HPCRF;
Step S304, VPCRF receive the PCC rule that HPCRF sends, and PCC rule is sent to VPCEF, and wherein, PCC rule is that HPCRF formulates according to the request of IP-CAN session establishment and CAMEL-Subscription-Information.
Pass through above-mentioned steps, the interface changed in correlation technique between VPCRF and HPCRF be Gx class interface or IP-CAN session-level S9 interface HPCRF directly authorize and issue rule to the way of VPCEF, solve the defect based on the Gx mouth roaming scenarios of VPCEF and HPCRF in correlation technique, have and strengthen the effect that VPCRF policy permissions realizes visited place policy control and roaming local service.
In a preferred implementation of the embodiment of the present invention, after VPCRF receives the IP-CAN session establishment request of VPCEF transmission, the method can also comprise: described VPCRF upgrades the parameter of carrying in the request of described IP-CAN session establishment according to local policy, wherein, this renewal can comprise following one of at least: supplementary parameter, delete parameter, amendment parameter etc.By above-mentioned steps, HPCRF can be made to return according to the IP-CAN after renewal the request of foundation and to formulate PCC rule, thus make the formulation of PCC rule take into full account local policy and the operation demand of access zone network.
In a preferred implementation of the embodiment of the present invention, after VPCRF receives the PCC rule of HPCRF transmission, the method can also comprise, and VPCRF is according to local policy amendment PCC rule.By above-mentioned steps, the controlling functions of the local policy controlling functions under roaming scence, local policy overlaying function, screening ownership place strategy can be realized.
In a preferred implementation of the embodiment of the present invention, when visited place exists multiple VPCRF, different IP-CAN sessions can choose different VPCRF.In the S9 interface of correlation technique, no matter a user has how many IP-CAN sessions, all only has a S9 session, therefore only has a VPCRF.And in the present embodiment, Gx oral instructions pass is IP-CAN session-level, therefore, can there is multiple IP-CAN session, the different IP-CAN session of user can choose different VPCRF.
In a preferred implementation of the embodiment of the present invention, VPCRF can be the relaying network element of VPCEF to HPCRF, route network element, or redirected network element.By above-mentioned steps, the function of VPCRF can be realized by multiple physical NE.
In a preferred implementation of the embodiment of the present invention, interface between VPCRF and HPCRF is Gx class interface or IP-CAN session-level S9 interface, wherein, this Gx class interface is the Gx interface strengthened, and the granularity of this IP-CAN session-level S9 interface is different from the granularity of S9 interface.Here, granularity difference is exactly level difference, and such as, user level is different, and session level is different.By Gx class interface or IP-CAN session-level S9 interface, same user can set up multiple session between VPCRF and HPCRF, and Gx class interface or IP-CAN session-level S9 interface do not need the session carrying out user class and PDN rank to map.In addition, the Gx interface of enhancing strengthens the policing rule enhancing comprising VPCRF and send to the enhancing of the conversation request message of HPCRF and HPCRF to return to VPCRF.
The embodiment of the present invention additionally provides a kind of visited place policy control method, Fig. 4 is the flow chart of the visited place policy control method two according to the embodiment of the present invention, the method is applied in the roaming scence not having to dispose or use S9 interface, and as shown in Figure 4, the method comprises the following steps:
Step S402, VPCEF send the request of IP-CAN session establishment via VPCRF to HPCRF;
Step S404, VPCEF receive the PCC rule that HPCRF sends via VPCRF, and wherein, this PCC rule is that HPCRF formulates according to the request of IP-CAN session establishment and CAMEL-Subscription-Information;
Step S406, VPCEF perform PCC rule.
Preferably, when visited place exists multiple VPCRF, different IP-CAN sessions can choose different VPCRF.
The embodiment of the present invention additionally provides a kind of visited place policy control method, Fig. 5 is the flow chart of the visited place policy control method three according to the embodiment of the present invention, the method is applied in the roaming scence not having to dispose or use S9 interface, and as shown in Figure 5, the method comprises the following steps:
Step S502, HPCRF receive the IP-CAN session establishment request that VPCEF sends via VPCRF;
Step S504, HPCRF formulate PCC rule according to the request of IP-CAN session establishment and CAMEL-Subscription-Information, and PCC rule is sent to VPCEE via VPCRF.
Preferably, when the request of IP-CAN session establishment is via VPCRF, the parameter in the request of IP-CAN session establishment by VPCRF according to the local policy of VPCRF upgrade.
Preferably, when visited place exists multiple VPCRF, different IP-CAN sessions can choose different VPCRF.
Preferably, the interface between VPCRF and HPCRF is the S9 interface of Gx class interface or IP-CAN session-level.
Additionally provide visited place policy control device in the present embodiment, this device is used for realizing above-described embodiment and preferred implementation, has carried out repeating no more of explanation.As used below, term " module " can realize the software of predetermined function and/or the combination of hardware.Although the device described by following examples preferably realizes with software, hardware, or the realization of the combination of software and hardware also may and conceived.
Fig. 6 is the structural representation of the visited place policy control device one according to the embodiment of the present invention, and be positioned on the "Policy and Charging Rules Function entity VPCRF of visited place, as shown in Figure 6, this device comprises:
First transceiver module 62, for receiving the IP-CAN session establishment request of visited place strategy and charging execution function entity VPCEF transmission, and sends to ownership place "Policy and Charging Rules Function entity HPCRF by the request of IP-CAN session establishment;
Second transceiver module 64, for receiving policy control and the charging controlling functions PCC rule of HPCRF transmission, and sends to VPCEF by PCC rule, and wherein, PCC rule is that HPCRF formulates according to the request of IP-CAN session establishment and CAMEL-Subscription-Information.
Fig. 7 is the structural representation of the visited place policy control device two according to the embodiment of the present invention, and be positioned on visited place strategy and charging execution function entity VPCEF, as shown in Figure 7, this device comprises:
Sending module 72, for sending the request of IP-CAN session establishment via VPCRF to HPCRF;
Receiver module 74, for receiving the PCC rule that HPCRF sends via VPCRF, wherein, PCC rule is that HPCRF formulates according to the request of IP-CAN session establishment and CAMEL-Subscription-Information;
Executive Module 76, for performing PCC rule.
Fig. 7 a is the structural representation of the visited place policy control device three according to the embodiment of the present invention, is positioned on HPCRF, and as shown in Figure 7a, this device comprises:
Request receiving module 78, for receiving the IP-CAN session establishment request that VPCEF sends via VPCRF;
Module 79 is formulated in session, for formulating PCC rule according to the request of IP-CAN session establishment and CAMEL-Subscription-Information, and PCC rule is sent to VPCEE via VPCRF.
Be described below in conjunction with preferred embodiment, following preferred embodiment combines above-described embodiment and preferred implementation thereof.
Preferred embodiment one
In the present embodiment, UE is under roaming local access scene, and V-DRA sends the IP-CAN session establishment request of VPCEF to VPCRF.VPCRF judges that this user is as diffusing in user, judges to need to send the request of IP-CAN session establishment to HPCRF according to local policy.VPCRF sends this IP-CAN session establishment request and sends this IP-CAN session establishment request to HPCRF to the request of V-DRA, V-DRA forward pass IP-CAN session establishment to H-DRA, H-DRA.HPCRF contracts according to ownership place and strategic decision-making is carried out in this IP-CAN session establishment request, resource authorization and generation PCC rule.HPCRF returns IP-CAN conversation establishing response message to V-DRA, V-DRA further forward pass IP-CAN conversation establishing response message to VPCRF by H-DRA, carries policing rule and dependent event information in this IP-CAN conversation establishing response message.VPCRF confirms the resource that HPCRF authorizes, if confirm successfully, sends this PCC rule to GW (PCEF).
In above-mentioned flow process, DRA is agency's (proxy) pattern, and VPCRF is the proxy network element of VPCEF connection HPCRF.The session request of VPLMN is routed to HPLMN by V-DRA.
Fig. 8 is the flow chart of visited place policy control method one according to the preferred embodiment of the invention, and the method is the roaming scenarios strengthened based on the VPCRF of VPCRFproxy, and as shown in Figure 8, the method comprises the following steps:
Step S801:PCEF place gateway receives sets up IP-CAN session request, carries user ID and PDN mark in message.PCEF place gateway is set up IP-CAN session distributing IP Address;
Step S802:PCEF sends IP-CAN session request to visited place V-DRA and sets up message (CCR), carries user ID, PDN mark and IP Address in message;
Step S803:V-DRA searches local information of preserving according to user ID, find that this user not yet has PCRF to select, according to user ID, IP and PDN, set local policy (such as roaming policy) selects a PCRF(VPCRF for this user), and preserve this user profile, the PCRF address of session information and selection or PCRF mark.This CCR of VDRA forward asks to the VPCRF selected, and carries user ID, PDN mark and IP Address in message.
Step S804:PCRF is according to station address, user ID and PDN mark, judge that user is as roamer, in conjunction with local policy and roaming agreement, to the renewal of request message, (such as newly-increased visited place busy is hurried district's information in the message in decision-making alternatively, for HPCRF decision-making), and this IP-CAN conversation establishing request of forward forward is to home network.This CCR request message of VPCRF proxy is to VDRA;
Step S805:VDRA is according to UE IP and ID, and judge the ownership Diameter territory (belonging area network) that the CCR request of this VPCRF sends, VDRA, according to the routing iinformation of the home network/domain identifier of this user, finds HDRA.Send this CCR and ask HDRA, in message, carry relevant information when PCEF sends request.
Step S806:HDRA is according to UE IP and ID in request message, and PDN mark, judge that this user not yet selects HPCRF, then according to DRA local policy for this user selects HPCRF, and send this CCR and ask HPCRF, carry relevant information when PCEF sends request in message.H-DRA preserves this user profile, session information (as PCEF address or the mark of Gx session, VPCRF address or mark), the HPCRF address of selection or mark.
Step S807:HPCRF judges do not have relevant subscription data according to user ID and PDN mark.HPCRF sends subscription request message to SPR, carries user ID, PDN mark in message;
Step S808:SPR returns CAMEL-Subscription-Information;
The UE access information etc. that step S809:HPCRF sends according to user signing contract information, PCEF is generated strategy, produce PCC rule and event trigger, and generate the relevant threshold value of consumption monitoring and monitoring keyword, and be handed down to HDRA by CCA response message and send PCEF to and install and perform; The formulation of dependency rule and generation, and the same prior art of flow processing of the optional function such as consumption monitoring, do not do repeated description here;
Step S810:HDRA returns CCA conversation establishing response message to VDRA, carries the information such as rule and event of above-mentioned strategic decision-making.
This CCA message of step S811:VDRA forward, to VPCRF, carries the information such as rule and event of above-mentioned strategic decision-making.
Step S812:VPCRF preserves the strategic decision-making Sum fanction of HPCRF, the resource that HPCRF authorizes is confirmed, according to local policy, dependency rule is upgraded alternatively, if confirm successfully, send this PCC rule, to GW (PCEF), execution is installed, carry the dependent event that PCRF subscribes in this message, and possible consumption monitors the monitor messages such as threshold value.This CCA message sends VDRA, returns to PCEF by VDRA.
Step S813:VDRA receives the CCA message of the policy distribution of VPCRF, and this message of forward is to PCEF, and carry information such as S812 describes.
Step S814:PCEF preserves dependency rule and the event of subscription of HPCRF mandate, installs and performs.Return IP-CAN conversation establishing response message (as SGW etc.), carry out the process of IP-CAN signaling bear.
Step S815: home network AF initiates service conversation request, triggers AF conversation establishing.Send ASR request message to HPCRF, carry in message user ID and or IP address, business information, and concrete stream description information.This ASR request message is via H-DRA proxy to HPCRF; Whether alternatively, the triggering of this business also can be that TDF detects that conditions such as reporting PCRF triggers, and the present embodiment only illustrates, not to trigger condition, such as, have AF to trigger etc. and limit;
Step S816:H-DRA receives the AF conversation establishing request of AF, according to the PCRF selection information of this user that this locality is preserved, chooses the same PCRF(HPCRF that IP-CAN conversation establishing is selected).Local preservation AF session information
After step S817:H-DRA upgrades the binding session information of this user, this ASR of proxy asks HPCRF, carries the specifying information in AF request;
Step S818:HPCRF receives the request of AF conversation establishing, identifies relevant IP-CAN session, and association PCC rule.Association AF session is to this IP-CAN session.Generate or upgrade relevant PCC rule.
Step S818:HPCRF provides the PCC rule and strategic decision-making generated or upgrade to install to PCEF and performs.Send RAR message and be routed to access zone network to HDRA, in message, carry dependency rule and event;
Step S819:HPCRF sends RAR to H-DRA, provides the rule after renewal and event information;
The user conversation related information that step S820:H-DRA stores according to this locality, this RAR message of route, to visited network V-DRA, carries the information such as rule and event generated in S817 in message;
The user conversation related information that step S821:V-DRA stores according to this locality, this RAR to V-PCRF of proxy, carries the information such as rule and event generated in S817 in message;
Step S822:VPCRF preserves the strategic decision-making Sum fanction information that in the RAR message of V-DRA, HPCRF provides, the resource of this business that HPCRF authorizes is confirmed, if confirm successfully, send this PCC rule, to GW (PCEF), execution is installed, carry the rule of renewal and the dependent event of PCRF subscription in this message, and possible consumption monitors the monitor messages such as threshold value.This RAR message sends to V-DRA, by V-DRA proxy to PCEF.
Step S823:V-DRA receives the RAR message of the renewal IP-CAN session of VPCRF, and this message of forward is to PCEF, and carry information such as S822 describes.
Step S824:PCEF installs or upgrades the dependency rule of being authorized by HPCRF and the subscription event of VPCRF proxy.Return rule and provide response RAA message, namely IP-CAN session modification response message is to HPCRF.This RAA message sends to V-DRA route;
This RAA message of step S825:V-DRA route, to VPCRF, informs regular execution result;
This RAA message of step S826:VPCRF proxy, to HPCRF, is routed to belonging area network through V-DRA therebetween; PCRF continues this RAA message of forward pass to V-DRA route;
This RAA message of step S827:V-DRA route to HPCRF, via H-DRA forward pass;
Step S828:H-DRA receives this RAA message, and according to the PCRF address that this locality stores, this response message of forward pass, to HPCRF, carries the relevant information provided in S824;
Step S829: for outside AF triggers, then H-PCRF returns AF to AF and creates response message, informs the dependent event report that AF conversation establishing result and AF subscribe to; This ASA message returns to AF via H-DRA;
The ASA response message that step S830:H-DRA will receive, according to the AF session information that this locality stores, route, to AF, informs AF conversation establishing result, and the dependent event report that AF subscribes to;
Foregoing description user is IP-CAN session and the success of AF conversation establishing under the access roaming scene of visited place, this business that can successfully use AF to trigger.V-DRA completes the selection of VPCRF and the routing function of home network.H-DRA completes the session association of IP-CAN session and AF session, correctly performs the selection of H-PCRF.VPCRF enhances the proxy function (be different from the S9 session of the user class of prior art herein, VPCRF does not need the mapping performing Gx session and S9 session/S9 session) of rule application between PCEF and HPCRF of visited place and resource authorization.Interface between VPCRF and HPCRF can be Gx interface (the Gx conversation message of VPCRF proxy PCEF is to HPCRF) or S9 interface (the S9 session of PDN rank is different from the S9 session of user class of the prior art).Multiple Gx or S9 session can be there is between VPLMN and HPLMN.According to the strategy (the different PCRF selection strategy of such as different PDN) that PCRF selects, a not only VPCRF can be there is.
When there is BBERF and disposing, the associating of gateway control session and IP-CAN session in V-DRA, for the selection of V-PCRF, is similar to the association process of above-mentioned AF session and IP-CAN session, does not do repeated description herein.
Preferred embodiment two
In the present embodiment, UE is under roaming local access scene, and V-DRA sends the IP-CAN session establishment request of VPCEF to VPCRF.VPCRF judges that this user is as diffusing in user, judges that needing the request of transmission IP-CAN session establishment to send this IP-CAN session establishment request to HPCRF, VPCRF sends this request to HPCRF to H-DRA, H-DRA according to local policy.HPCRF carries out strategic decision-making according to ownership place is signing with IP-CAN session establishment request message, resource authorization and generation PCC rule.HPCRF returns IP-CAN conversation establishing response message to VPCRF by H-DRA, carries policing rule and dependent event information in this response message.VPCRF confirms the resource that HPCRF authorizes, if confirm successfully, sends this PCC rule to VPCEF.AF triggers AF session, chooses HPCRF by H-DRA, triggers IP-CAN session modification.
In this flow process, DRA is route pattern, and VPCRF is the route network element that PCEF connects HPCRF.The session request of VPLMN is routed to HPLMN by VPCRF.
Fig. 9 is the flow chart of visited place policy control method two according to the preferred embodiment of the invention, and the method is the roaming scenarios strengthened based on the VPCRF of VPCRF route, specifically comprises the following steps:
Step S901:PCEF place gateway receives sets up IP-CAN session request, carries user ID and PDN mark in message.PCEF place gateway is set up IP-CAN session distributing IP Address;
Step S902:PCEF sends IP-CAN session request to visited place V-DRA and sets up message (CCR), carries user ID, PDN mark and IP Address in message;
Step S903:V-DRA searches local information of preserving according to user ID, find that this user not yet has PCRF to select, according to user ID, IP and PDN, set local policy (such as roaming policy) selects a PCRF(VPCRF for this user), and preserve this user profile, the PCRF address of session information and selection or PCRF mark.This CCR of VDRA forward asks to the VPCRF selected, and carries user ID, PDN mark and IP Address in message.
Step S904:VPCRF is according to station address, user ID and PDN mark, judge that user is as roamer, in conjunction with local policy and roaming agreement, to the renewal of request message, (such as newly-increased visited place busy is hurried district's information in the message in decision-making alternatively, for HPCRF decision-making), and this IP-CAN conversation establishing request of forward forward is to home network.This CCR request message of the direct proxy of VPCRF is to belonging area network, and VPCRF, according to UE IP and ID, judges that this CCR asks the ownership Diameter territory (belonging area network) sent, according to the information of the home network/domain identifier of this user, finds the HDRA of ownership place.Send this CCR and ask HDRA, in message, carry relevant information when PCEF sends request.
Step S905:HDRA is according to UE IP and ID in request message, and PDN mark, judge that this user not yet selects HPCRF, then according to DRA local policy for this user selects HPCRF, and send this CCR and ask HPCRF, carry relevant information when PCEF sends request in message.H-DRA preserves this user profile, session information (as PCEF address or the mark of Gx session, VPCRF address or mark), the HPCRF address of selection or mark.
Step S906:HPCRF judges do not have relevant subscription data according to user ID and PDN mark.HPCRF sends subscription request message to SPR, carries user ID, PDN mark in message;
Step S907:SPR returns CAMEL-Subscription-Information;
The UE access information etc. that step S908:HPCRF sends according to user signing contract information, PCEF is generated strategy, produce PCC rule and event trigger, and generate the relevant threshold value of consumption monitoring and monitoring keyword, and be handed down to HDRA by CCA response message and send PCEF to and install and perform; The formulation of dependency rule and generation, and the same prior art of flow processing of the optional function such as consumption monitoring, do not do repeated description here;
Step S909:HDRA returns CCA conversation establishing response message to VPCRF, carries the information such as rule and event of above-mentioned strategic decision-making.
Step S910:VPCRF preserves the strategic decision-making Sum fanction of HPCRF, the resource that HPCRF authorizes is confirmed, according to local policy, dependency rule is upgraded alternatively, if confirm successfully, send this PCC rule, to GW (PCEF), execution is installed, carry the dependent event that PCRF subscribes in this message, and possible consumption monitors the monitor messages such as threshold value.This CCA message sends VDRA, returns to PCEF by VDRA.
Step S911:VDRA receives the CCA message of the policy distribution of VPCRF, and this message of forward is to PCEF, and carry information such as S910 describes.
Step S912:PCEF preserves dependency rule and the event of subscription of HPCRF mandate, installs and performs.Return IP-CAN conversation establishing response message (as SGW etc.), carry out the process of IP-CAN signaling bear.
Step S913: home network AF initiates service conversation request, triggers AF conversation establishing.Send ASR request message to HPCRF, carry in message user ID and or IP address, business information, and concrete stream description information.This ASR request message is via H-DRA proxy to HPCRF; Whether alternatively, the triggering of this business also can be that TDF detects that conditions such as reporting PCRF triggers, and the present embodiment only illustrates, not to trigger condition, such as, have AF to trigger etc. and limit;
Step S914:H-DRA receives the AF conversation establishing request of AF, according to the PCRF selection information of this user that this locality is preserved, chooses the same PCRF(HPCRF that IP-CAN conversation establishing is selected).Local preservation AF session information;
After step S915:H-DRA upgrades the binding session information of this user, this ASR of proxy asks HPCRF, carries the specifying information in AF request;
Step S916:HPCRF receives the request of AF conversation establishing, identifies relevant IP-CAN session, and association PCC rule.Association AF session is to this IP-CAN session.Generate or upgrade relevant PCC rule.
Step S917:HPCRF provides the PCC rule and strategic decision-making generated or upgrade to install to PCEF and performs.Send RAR message and be routed to access zone network to HDRA, in message, carry dependency rule and event;
The user conversation related information that step S918:H-DRA stores according to this locality, this RAR message of route, to visited network VPCRF, carries the information such as rule and event generated in S916 in message;
Step S919:VPCRF preserves the strategic decision-making Sum fanction information that in the RAR message of H-DRA, HPCRF provides, the resource of this business that HPCRF authorizes is confirmed, if confirm successfully, send this PCC rule, to GW (PCEF), execution is installed, carry the rule of renewal and the dependent event of PCRF subscription in this message, and possible consumption monitors the monitor messages such as threshold value.This RAR message sends to V-DRA, by V-DRA proxy to PCEF.
Step S920:V-DRA receives the RAR message of the renewal IP-CAN session of VPCRF, and this message of forward is to PCEF, and carry information such as S920 describes.
Step S921:PCEF installs or upgrades the dependency rule of being authorized by HPCRF and the subscription event of VPCRF proxy.Return rule and provide response RAA message, namely IP-CAN session modification response message is to HPCRF.This RAA message sends to V-DRA route;
This RAA message of step S922:V-DRA route, to VPCRF, informs regular execution result;
This RAA message of step S923:VPCRF proxy, to HPCRF, is routed to HPCRF through H-DRA therebetween;
Step S924:H-DRA receives this RAA message, and according to the PCRF address that this locality stores, this response message of forward pass, to HPCRF, carries the relevant information provided in S922;
Step S925:H-PCRF returns AF to AF and creates response message, informs the dependent event report that AF conversation establishing result and AF subscribe to; This ASA message returns to AF via H-DRA;
The ASA response message that step S926:H-DRA will receive, according to the AF session information that this locality stores, route, to AF, informs AF conversation establishing result, and the dependent event report that AF subscribes to;
Foregoing description user is IP-CAN session and the success of AF conversation establishing under the access roaming scene of visited place, this business that can successfully use AF to trigger.V-DRA completes the selection of VPCRF and the routing function of visited network.H-DRA completes the session association of IP-CAN session and AF session, correctly performs the selection of H-PCRF.The proxy function that VPCRF enhances rule application between PCEF and HPCRF of visited place and resource authorization (is different from the S9 session of the user class of prior art herein, VPCRF does not need the mapping performing Gx session and S9 session/S9 session), VPCRF is by H-DRA addressing HPCRF.Interface between VPCRF and HPCRF can be Gx interface (the Gx conversation message of VPCRF proxy PCEF is to HPCRF) or S9 interface (the S9 session of PDN rank is different from the S9 session of user class of the prior art).Multiple Gx or S9 session can be there is between VPLMN and HPLMN.According to the strategy (the different PCRF selection strategy of such as different PDN) that PCRF selects, a not only VPCRF can be there is.
When there is BBERF and disposing, the associating of gateway control session and IP-CAN session in V-DRA, for the selection of V-PCRF, is similar to the association process of above-mentioned AF session and IP-CAN session, does not do repeated description herein;
The above is single IP-CAN conversation establishing flow process, and there is multiple IP-CAN session context for user, flow process can with embodiment one or two, IP-CAN and the AF session that VDRA with HDRA will associate, gateway control session, and TDF session, choose same PCRF.According to operation demand, different IP-CAN session can choose different PCRF.
The above DRA is logic function, can be independent part administration network element entity, also can integrated deployment on other related network elements (being such as integrated on GW).The support mode of DRA, can for acting on behalf of proxy or relaying relay or redirected redirect pattern.Deployment way and support mode the present invention of concrete DRA do not limit, and select according to operation demand.
As can be seen from the above description, present invention achieves following technique effect: achieve the local policy authority of access zone network to roamer, and carried out roaming local service.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (16)

1. a visited place policy control method, is characterized in that, comprising:
Visited place "Policy and Charging Rules Function entity VPCRF receives the IP-CAN session establishment request of visited place strategy and charging execution function entity VPCEF transmission, and the request of described IP-CAN session establishment is sent to ownership place "Policy and Charging Rules Function entity HPCRF;
Described VPCRF receives policy control and the charging controlling functions PCC rule of described HPCRF transmission, and described PCC rule is sent to described VPCEF, wherein, described PCC rule is that described HPCRF formulates according to the request of described IP-CAN session establishment and CAMEL-Subscription-Information.
2. method according to claim 1, it is characterized in that, after described VPCRF receives the IP-CAN session establishment request of described VPCEF transmission, described method also comprises: described VPCRF upgrades the parameter of carrying in the request of described IP-CAN session establishment according to local policy.
3. method according to claim 1, is characterized in that, after described VPCRF receives the described PCC rule of described HPCRF transmission, described method also comprises, and described VPCRF revises described PCC rule according to local policy.
4. method according to claim 1, is characterized in that, described method comprises:
When visited place exists multiple VPCRF, different IP-CAN sessions can choose different VPCRF.
5. method according to claim 1, is characterized in that, described VPCRF is the relaying network element of described VPCEF to described HPCRF, route network element, or redirected network element.
6. method according to claim 1, is characterized in that, the interface between described VPCRF and described HPCRF is Gx class interface or IP-CAN session-level S9 interface.
7. method according to claim 6, is characterized in that, described Gx class interface is the Gx interface strengthened, and the granularity of described IP-CAN session-level S9 interface is different from the granularity of S9 interface.
8. a visited place policy control method, is characterized in that, comprising:
Visited place strategy and charging execution function entity VPCEF send the request of IP-CAN session establishment via visited place "Policy and Charging Rules Function entity VPCRF to ownership place "Policy and Charging Rules Function entity HPCRF;
Described VPCEF receives the policy control and charging controlling functions PCC rule that described HPCRF sends via described VPCRF, and wherein, described PCC rule is that described HPCRF is according to the request of described IP-CAN session establishment and CAMEL-Subscription-Information formulation;
Described VPCEF performs described PCC rule.
9. method according to claim 8, is characterized in that, described method also comprises:
When visited place exists multiple VPCRF, different IP-CAN sessions can choose different VPCRF.
10. a visited place policy control method, is characterized in that, comprising:
The IP-CAN session establishment request that ownership place "Policy and Charging Rules Function entity HPCRF reception visited place strategy and charging execution function entity VPCEF send via visited place "Policy and Charging Rules Function entity VPCRF;
Described HPCRF generates strategy according to the request of described IP-CAN session establishment and CAMEL-Subscription-Information and controls and charging controlling functions PCC rule, and described PCC rule is sent to described VPCEE via described VPCRF.
11. methods according to claim 10, is characterized in that, when the request of described IP-CAN session establishment is via described VPCRF, the parameter in the request of described IP-CAN session establishment by described VPCRF according to the local policy of described VPCRF upgrade.
12. methods according to claim 10, is characterized in that,
When visited place exists multiple VPCRF, different IP-CAN sessions can choose different VPCRF.
13. methods according to claim 10, is characterized in that, the interface between described VPCRF and described HPCRF is the S9 interface of Gx class interface or IP-CAN session-level.
14. 1 kinds of visited place policy control devices, is characterized in that, described device is positioned on the "Policy and Charging Rules Function entity VPCRF of visited place, and described device comprises:
First transceiver module, for receiving the IP-CAN session establishment request of visited place strategy and charging execution function entity VPCEF transmission, and sends to ownership place "Policy and Charging Rules Function entity HPCRF by the request of described IP-CAN session establishment;
Second transceiver module, for receiving policy control and the charging controlling functions PCC rule of described HPCRF transmission, and described PCC rule is sent to described VPCEF, wherein, described PCC rule is that described HPCRF formulates according to the request of described IP-CAN session establishment and CAMEL-Subscription-Information.
15. 1 kinds of visited place control device, is characterized in that, be positioned on visited place strategy and charging execution function entity VPCEF, described device comprises:
Sending module, for sending the request of IP-CAN session establishment via visited place "Policy and Charging Rules Function entity VPCRF to ownership place "Policy and Charging Rules Function entity HPCRF;
Receiver module, for receiving the policy control and charging controlling functions PCC rule that described HPCRF sends via described VPCRF, wherein, described PCC rule is that described HPCRF is according to the request of described IP-CAN session establishment and CAMEL-Subscription-Information formulation;
Executive Module, for performing described PCC rule.
16. 1 kinds of visited place control device, is characterized in that, be positioned on ownership place "Policy and Charging Rules Function entity HPCRF, this device comprises:
Request receiving module, for receiving visited place strategy and the IP-CAN session establishment request that sends via visited place "Policy and Charging Rules Function entity VPCRF of charging execution function entity VPCEF;
Module is formulated in session, for control and the charging controlling functions PCC rule of generating strategy according to the request of described IP-CAN session establishment and CAMEL-Subscription-Information, and described PCC rule is sent to described VPCEE via described VPCRF.
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