CN103841539A - Roaming local service function realization method and system - Google Patents

Roaming local service function realization method and system Download PDF

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Publication number
CN103841539A
CN103841539A CN201210478957.8A CN201210478957A CN103841539A CN 103841539 A CN103841539 A CN 103841539A CN 201210478957 A CN201210478957 A CN 201210478957A CN 103841539 A CN103841539 A CN 103841539A
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pcrf
local service
service function
roaming local
roaming
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CN103841539B (en
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吴锦花
周晓云
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2013/086711 priority patent/WO2014079323A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24—Accounting or billing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/66—Policy and charging system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/80—Rating or billing plans; Tariff determination aspects
    • H04M15/8038—Roaming or handoff
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing 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
    • H04W8/08—Mobility data transfer
    • H04W8/12—Mobility data transfer between location registers or mobility servers

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  • Accounting & Taxation (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a roaming local service function realization method, apparatus and system. The method comprises: when an S9 session is created, a visit-policy control and charging function (V-PCRF) entity sending a roaming local service function authorization request to a home-policy control and charging function (H-PCRF) entity; and the H-PCRF receiving the request, and when the H-PCRF supports a roaming local service function and subscription is allowed, the H-PCRF authorizing the roaming local service function to the V-PCRF. The method and system provided by the invention can realize the roaming local service function.

Description

A kind of roaming local service function realizing method and system
Technical field
The present invention relates to strategy and the charging control technology field of mobile communication, be specifically related to a kind of roaming local service function realizing method and system.
Background technology
From third generation partner program (3rd Generation Partnership Project, 3GPP) since stage 7 (Release7) standards system, strategy and billing function are realized by strategy and charging control (Policy andCharging Control, PCC) framework.PCC framework is a functional framework that can be applied to multiple access technology, for example, PCC framework can be applied to universal mobile telecommunications system (Universal MobileTelecommunications System, UMTS) terrestrial radio Access Network (UMTS Terrestrial RadioAccess Network, UTRAN), global system for mobile communications (Global system for MobileCommunication, GSM) wireless access network, GSM data strengthen evolution (Enhanced Data Ratefor GSM Evolution, EDGE) wireless access network, intercommunicated wireless local area network (InterworkingWireles s Local Area Networks, and the grouping system of evolution (Evolved PacketSystem I-WLAN), EPS) etc.
Fig. 1 is the non-roaming structure composed schematic diagram of the PCC of existing Rel-11, below each logical functional entity and interface function thereof in the PCC framework shown in Fig. 1 is described:
Access facility (Access Facilities, AF), for the access point of service application is provided, the Internet resources that these service application are used need to carry out dynamic policy control.In the time that service surface is carried out parameter negotiation, related service information is passed to policy control and charging regulation function entity (Policy and ChargingRules Function by AF, PCRF), described policy control and charging regulation function entity also can be called policy control and charging rule functional device.If these business information are consistent with the strategy of PCRF, PCRF accepts this negotiation; Otherwise PCRF refuses this negotiation, and in the time of feedback, provide the acceptable service parameter of PCRF.Subsequently, AF can return to these parameters subscriber equipment (User Equipment, UE).Wherein, the interface between AF and PCRF is Rx interface.
PCRF is the core of PCC, for being responsible for the formulation of strategic decision-making and charging regulation.PCRF provides the rule of the network control based on business data flow, described network control rule comprises detection, gate (Gating Control), service quality (Quality of Service, QoS) control and the charging regulation based on data flow etc. of business data flow.PCRF sends to strategy and charging execution function entity (Policy and Control Enforcement Function, PCEF) to carry out the strategy of its formulation and charging regulation; Meanwhile, PCRF also needs to ensure that these rules are consistent with user's CAMEL-Subscription-Information.Wherein, PCRF generate strategy and charging regulation according to comprising: that obtain from AF and information traffic aided, the user's relevant with charging with policy control that obtain from user-subscribed database (SubscriptionProfile Repository, SPR) CAMEL-Subscription-Information and that obtain from PCEF by Gx interface and information carrying network of relation.
PCEF is usually located at gateway (Gate-Way, GW) in, as the grouped data network gateway of EPS (Packet Data Network Gateway, PDN-GW), GPRS (General PacketRadio Service, GPRS) GGSN (the Gateway GPRS Support Node in, GGSN) packet data gateway (the Packet Data Gateway and in I-WLAN, PDG) etc., carry out at loading end strategy and the charging regulation that PCRF formulates.Business datum flow filter in the rule that PCEF sends according to PCRF detects business data flow, and then these business data flows are carried out to strategy and the charging regulation that PCRF formulates; In the time that carrying is set up, the rule that PCEF sends according to PCRF is carried out resource distribution, and the information providing according to AF is carried out gate control; Meanwhile, the Event triggered that PCEF subscribes to according to PCRF reports event on bearer network; The charging regulation sending according to PCRF, PCEF carries out corresponding service data flow charge operation, and charging can be both online charging, can be also offline charging.If online charging, PCEF needs and Online Charging System (Online Charging System, OCS) carry out credit management together; When offline charging, the charge information of exchange correlation between PCEF and off-line accounting system (Offline ChargingSystem, OFCS).Wherein, the interface between PCEF and PCRF is Gx interface, and the interface between PCEF and OCS is Gy interface, and the interface between PCEF and OFCS is Gz interface.PCEF also can strengthen and has business measuring ability (Traffic Detection Function, TDF).The ADC rule that application that what PCEF can issue according to this locality configuration or PCRF comprise detects control strategy (ApplicationDetection and Control, ADC) apply and is detected and carry out strategy execution (as gate, redirected and limit bandwidth).
TDF can independently dispose, and it is connected with PCRF by Sd interface, and TDF can detect control law according to application pre-configured or that PCRF issues and apply detection and strategy execution.PCRF detects control law or the pre-configured rule of activation TDF for TDF provides application, and the policy control executable operations of independent TDF function comprises gate, is redirected and limit bandwidth.TDF makes report (beginning from the business/stream detecting to PCRF and the termination of for example reporting) of the dependent event of detected business/stream and information to PCRF, and send business datum stream description to PCRF, send from PCRF for flowing, the business of detection detects and the signaling of policing rule.
Bearing binding and event reporting function entity (Bearer Binding and Event ReportingFunction, BBERF) are usually located in Access Network gateway (Access Network Gateway).As accessed and adopt proxy mobile internet protocol version 6 (Proxy Mobile Internet Protocol version6 between EPS, gateway S-GW and P-GW by E-UTRAN when subscriber equipment, PMIPv6), when agreement, in S-GW, just there is BBERF.In the time that subscriber equipment accesses by trusted non-3 GPP access network, also there is BBERF in the trusted non-3 GPP access network Central Shanxi Plain.
SPR, stores the user policy, billing control and subscription information relevant to policy control and charging.Interface between SPR and PCRF is Sp interface.
OCS and PCEF complete the control and management of user credit under online charging mode jointly.
OFCS and PCEF complete the billing operation under offline charging mode jointly.
It is a packet data network (Packet Data Network of access that above PCC framework has been realized UE by each functional entity, PDN) Internet protocol of setting up connects the policy and charging control of Access Network (Internet ProtocolConnectivity Acces s Network, IP-CAN) session.
In prior art, in the time that user roams into visited place, there is the mode of two kinds of access visited network (being the network of visited place), one is ownership place route access (home routed access), one is local break-out access (local breakout acess), access scene as Fig. 2 (the PCC framework under LBO roaming scence) for local break-out, wherein PCEF is positioned at visited network, the information interaction of visited network and home network (being the network of ownership place) is by the roaming interface S9 interface transmission between visited network PCRF (V-PCRF) and home network PCRF (H-PCRF).When user is in the time that visited network accesses, V-PCRF sets up S9 session/sub-session by S9 interface requests, and H-PCRF formulates PCC strategy, issues PCC rule to V-PCRF, and V-PCRF passes to the execution such as PCEF/BBERF again.
The individual business demand of mobile communication is on the increase at present, the demand of user's roaming also constantly increases, user wishes to access home network business at visited network, and can pass through at the signing user terminal of home network and sequence number (Identity, ID) local service of message reference visited network, the local service of described visited network is also referred to as roaming local service (Roaming Local Service, RLS).
Because roaming local service function belongs to visited network, be independent of home network, therefore access corresponding strategies and the resource authorization of roaming local service for user, need to be by V-PCRF decision-making.But, strategy in prior art under roaming scence and charging regulation are formulated and are issued by H-PCRF, V-PCRF can only accept or refuse mandate and the rule of HPCRF, cannot carry out the independence of roaming local service to the user of home network signing and authorize, therefore cannot realize roaming local service function.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of roaming local service function realizing method and system, can realize roaming local service function.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of roaming local service function realizing method, described method comprises:
In the time of S9 conversation establishing, the policy control of visited network and charging regulation function entity (V-PCRF) send policy control and the charging regulation function entity (H-PCRF) of roaming local service function authorization requests to home network;
H-PCRF receives described request, and in the time that H-PCRF supports roaming local service function and signing permission, H-PCRF authorizes roaming local service function to V-PCRF.
Preferably, described in the time of S9 conversation establishing, V-PCRF sends roaming local service function authorization requests to H-PCRF, for,
V-PCRF sends S9 session establishment or modify request messages to H-PCRF, described S9 session establishment or modify request messages comprise supported feature information and/or roaming local service function request field, described supported feature information is used for representing whether described V-PCRF supports to roam local service function, and described roaming local service function request field is used for representing that V-PCRF is to the mandate of H-PCRF request roaming local service function;
Accordingly, H-PCRF receives described request, and in the time that H-PCRF supports roaming local service function and signing permission, H-PCRF authorizes roaming local service function to V-PCRF, for,
H-PCRF receives described request, and return to S9 session establishment or amendment response message to V-PCRF, in the time that H-PCRF supports roaming local service function and signing permission, described S9 session establishment or amendment response message comprise roaming local service function indication field and/or supported feature information, described roaming local service function indication field represents whether described H-PCRF authorizes roaming local service function to V-PCRF, and described supported feature information is used for representing whether described H-PCRF supports to roam local service function.
Preferably, before described H-PCRF authorizes roaming local service to V-PCRF, described method also comprises:
H-PCRF obtains described user's CAMEL-Subscription-Information.
Preferably, H-PCRF obtains described user's CAMEL-Subscription-Information, for,
H-PCRF according to the user totem information in described S9 session establishment or modify request messages from this locality or the user-subscribed database H-SPR of home network obtain described user's CAMEL-Subscription-Information.
Preferably, described H-PCRF is after V-PCRF authorizes roaming local service, described method also comprises: the V-PCRF that receives roaming local service information generates strategy and charging control (PCC) rule, and described PCC rule is issued to strategy and charging execution function entity (PCEF).
The invention provides a kind of PCRF, described PCRF comprises:
Authorization requests transmitting element, for when the S9 conversation establishing, sends roaming local service function authorization requests to policy control and the charging regulation function entity (H-PCRF) of home network;
Receiving element, the roaming local service function mandate of sending for receiving H-PCRF.
Preferably, described authorization requests transmitting element, specifically for sending S9 session establishment or modify request messages to H-PCRF, described S9 session establishment or modify request messages comprise supported feature information and/or roaming local service function request field, described supported feature information is used for representing whether described PCRF supports to roam local service function, and described roaming local service function request field is used for representing that described PCRF is to the mandate of H-PCRF request roaming local service function;
Described receiving element, S9 session establishment or the amendment response message sent specifically for receiving H-PCRF, described S9 session establishment or amendment response message comprise roaming local service function indication field and/or supported feature information, described roaming local service function indication field represents whether described H-PCRF authorizes roaming local service function to described PCRF, and described supported feature information is used for representing whether described H-PCRF supports to roam local service function.
The invention provides a kind of PCRF, described PCRF comprises: request reception unit, for receiving the policy control of visited network and the roaming local service function authorization requests that charging regulation function entity (V-PCRF) is sent;
Roaming local service function granted unit, in the time that local service function and signing permission are roamed in described PCRF support, authorizes and roams local service function to V-PCRF.
Preferably, described request receiving element, S9 session establishment or the modify request messages sent specifically for receiving V-PCRF, described S9 session establishment or modify request messages comprise supported feature information and/or roaming local service function request field;
Roaming local service function granted unit, specifically for return to S9 session establishment or amendment response message to V-PCRF, in the time that described PCRF supports roaming local service function and signing permission, described S9 session establishment or amendment response message comprise roaming local service function indication field and/or supported feature information, described roaming local service function indication field represents whether described PCRF authorizes roaming local service function to V-PCRF, and described supported feature information is used for representing whether described PCRF supports to roam local service function.
The invention provides a kind of roaming local service function and realize system, described system comprises: the policy control of the policy control of visited network and charging regulation function entity (V-PCRF) and home network and charging regulation function entity (H-PCRF), wherein
Described V-PCRF, for when the S9 conversation establishing, sends roaming local service function authorization requests to described H-PCRF;
Described H-PCRF, the roaming local service function authorization requests of sending for receiving V-PCRF, in the time that H-PCRF supports roaming local service function and signing permission, authorizes roaming local service function to V-PCRF.
Preferably, described V-PCRF, specifically for sending S9 session establishment or modify request messages to H-PCRF, described S9 session establishment or modify request messages comprise supported feature information and/or roaming local service function request field, described supported feature information is used for representing whether described V-PCRF supports to roam local service function, and described roaming local service function request field is used for representing that V-PCRF is to the mandate of H-PCRF request roaming local service function;
Described H-PCRF, the roaming local service function authorization requests of sending specifically for receiving V-PCRF, return to S9 session establishment or amendment response message to V-PCRF, in the time that H-PCRF supports roaming local service function and signing permission, described S9 session establishment or amendment response message comprise roaming local service function indication field and/or supported feature information, described roaming local service function indication field represents whether described H-PCRF authorizes roaming local service function to V-PCRF, described supported feature information is used for representing whether described H-PCRF supports to roam local service function.
As from the foregoing, technical scheme of the present invention comprises: in the time of S9 conversation establishing, the policy control of visited network and charging regulation function entity (V-PCRF) send policy control and the charging regulation function entity (H-PCRF) of roaming local service function authorization requests to home network;
H-PCRF receives described request, and in the time that H-PCRF supports roaming local service function and signing permission, H-PCRF authorizes roaming local service function to V-PCRF; Thus, the present invention can realize that the user of home network is carried out to the independence of roaming local service function is signing and authorize, and then can realize roaming local service function.
Brief description of the drawings
Fig. 1 is the realization flow figure of a kind of the first embodiment that roams local service function realizing method provided by the invention;
Fig. 2 is the structural representation of a kind of PCRF provided by the invention;
Fig. 3 is the structural representation of a kind of PCRF provided by the invention;
Fig. 4 is a kind of structural representation of roaming local service function and realizing system provided by the invention;
Fig. 5 is the realization flow figure of a kind of the second embodiment that roams local service function realizing method provided by the invention;
Fig. 6 is the realization flow figure of a kind of the 3rd embodiment that roams local service function realizing method provided by the invention.
Embodiment
A kind of the first embodiment that roams local service function realizing method provided by the invention, as shown in Figure 1, described method comprises:
Step 101, in the time of S9 conversation establishing, the policy control of visited network and charging regulation function entity (V-PCRF) send policy control and the charging regulation function entity (H-PCRF) of roaming local service function authorization requests to home network;
Step 102, H-PCRF receive described request, and in the time that H-PCRF supports roaming local service function and signing permission, H-PCRF authorizes roaming local service function to V-PCRF.
Preferably, described step 101, Ke Yiwei,
V-PCRF sends S9 session establishment or modify request messages to H-PCRF, described S9 session establishment or modify request messages comprise supported feature information and/or roaming local service function request field, described supported feature information is used for representing whether described V-PCRF supports to roam local service function, and described roaming local service function request field is used for representing that V-PCRF is to the mandate of H-PCRF request roaming local service function;
Accordingly, described step 102, Ke Yiwei,
H-PCRF receives described request, and return to S9 session establishment response message to V-PCRF, in the time that H-PCRF supports roaming local service function and signing permission, described S9 session establishment or amendment response message comprise roaming local service function indication field and/or supported feature information, described roaming local service function indication field represents whether described H-PCRF authorizes roaming local service function to V-PCRF, and described supported feature information is used for representing whether described H-PCRF supports to roam local service function.
Preferably, before described H-PCRF authorizes roaming local service function to V-PCRF, described method also comprises:
H-PCRF obtains described user's CAMEL-Subscription-Information;
Preferably, H-PCRF obtains described user's CAMEL-Subscription-Information, for,
H-PCRF according to the user totem information in described S9 session establishment or modify request messages from this locality or the user-subscribed database H-SPR of home network obtain described user's CAMEL-Subscription-Information.
Preferably, described H-PCRF is after V-PCRF authorizes roaming local service function, and described method also comprises: the V-PCRF that receives roaming local service function information formulates PCC rule, and described PCC rule is issued to PCEF.
The invention provides a kind of PCRF, as shown in Figure 2, described PCRF comprises:
Authorization requests transmitting element, for when the S9 conversation establishing, sends roaming local service function authorization requests to H-PCRF, and described roaming local service function authorization requests comprises whether described PCRF supports to roam the information of local service function;
Receiving element, the roaming local service function mandate of sending for receiving H-PCRF.
Preferably, described authorization requests transmitting element, specifically for sending S9 session establishment or modify request messages to H-PCRF, described S9 session establishment or modify request messages comprise supported feature information and/or roaming local service function request field, described supported feature information is used for representing whether described PCRF supports to roam local service function, and described roaming local service function request field is used for representing that described PCRF is to the mandate of H-PCRF request roaming local service function;
Described receiving element, S9 session establishment or the amendment response message sent specifically for receiving H-PCRF, described S9 session establishment or amendment response message comprise roaming local service function indication field and/or supported feature information, described roaming local service function indication field represents whether described H-PCRF authorizes roaming local service function to described PCRF, and described supported feature information is used for representing whether described H-PCRF supports to roam local service function.
The invention provides a kind of PCRF, as shown in Figure 3, described PCRF comprises: request reception unit, for receiving the policy control of visited network and the roaming local service function authorization requests that charging regulation function entity (V-PCRF) is sent;
Roaming local service function granted unit, in the time that local service function and signing permission are roamed in described PCRF support, authorizes and roams local service function to V-PCRF.
Preferably, described request receiving element, S9 session establishment or the modify request messages sent specifically for receiving V-PCRF, described S9 session establishment or modify request messages comprise supported feature information and/or roaming local service function request field;
Roaming local service function granted unit, specifically for return to S9 session establishment or amendment response message to V-PCRF, in the time that described PCRF supports roaming local service function and signing permission, described S9 session establishment or amendment response message comprise roaming local service function indication field and/or supported feature information, described roaming local service function indication field represents whether described PCRF authorizes roaming local service function to V-PCRF, and described supported feature information is used for representing whether described PCRF supports to roam local service function.
The invention provides a kind of roaming local service function and realize system, as shown in Figure 4, described system comprises: V-PCRF and H-PCRF, wherein,
Described V-PCRF, for when the S9 conversation establishing, sends roaming local service function authorization requests to described H-PCRF;
Described H-PCRF, the roaming local service function authorization requests of sending for receiving V-PCRF, in the time that H-PCRF supports roaming local service function and signing permission, authorizes roaming local service function to V-PCRF.
Preferably, described V-PCRF, specifically for sending S9 session establishment or modify request messages to H-PCRF, described S9 session establishment or modify request messages comprise supported feature information and/or roaming local service function request field, described supported feature information is used for representing whether described V-PCRF supports to roam local service function, and described roaming local service function request field is used for representing that V-PCRF is to the mandate of H-PCRF request roaming local service function;
Described H-PCRF, the roaming local service function authorization requests of sending specifically for receiving V-PCRF, return to S9 session establishment or amendment response message to V-PCRF, in the time that H-PCRF supports roaming local service function and signing permission, described S9 session establishment or amendment response message comprise roaming local service function indication field and/or supported feature information, described roaming local service function indication field represents whether described H-PCRF authorizes roaming local service function to V-PCRF, described supported feature information is used for representing whether described H-PCRF supports to roam local service function.
Below in conjunction with Fig. 5, a kind of the second embodiment that roams local service function realizing method provided by the invention is introduced.
In the present embodiment, H-PCRF and V-PCRF support to roam local service function, UE roams into visited place from ownership place, in the time of access visited network, select roaming local service function, after angelica network authorization visited network can and lay down a regulation for roaming local service functional independence decision strategy, the home network no longer rule of the strategy to visited network independent decision-making and formulation carries out license confirmation.
Step 501, receive the PCEF of IP-CAN session establishment request message, send IP-CAN session establishment Indication message to V-PCRF, in described IP-CAN session establishment Indication message, carry the IP address of user ID, PDN mark, UE and the instruction of UE selection roaming local service function.
Step 502, V-PCRF judge the local CAMEL-Subscription-Information that whether has described user according to the described user ID of receiving, in the time existing CAMEL-Subscription-Information and described CAMEL-Subscription-Information effective, enter step 503; In the time not there is not CAMEL-Subscription-Information, or there is CAMEL-Subscription-Information but described CAMEL-Subscription-Information when imperfect, or have CAMEL-Subscription-Information but described CAMEL-Subscription-Information while having lost efficacy, enter step 504.
Step 503, V-PCRF obtain described user's CAMEL-Subscription-Information from this locality according to described user ID, enter step 506.
Step 504, V-PCRF send CAMEL-Subscription-Information request message to the user-subscribed database V-SPR of visited network, carry user ID and PDN mark in described CAMEL-Subscription-Information request message.
Step 505, receive that the V-SPR of CAMEL-Subscription-Information request returns to CAMEL-Subscription-Information response message to V-PCRF, described CAMEL-Subscription-Information response message is carried described user's CAMEL-Subscription-Information.
Step 506, V-PCRF judge whether to set up S9 session for described user according to described user ID, if do not set up S9 session for described user, enter step 507; If set up S9 session for described user, enter step 508.
Step 507, V-PCRF send S9 session establishment request message to H-PCRF, in described S9 session establishment request message, carry IP address and supported feature (supportfeature) field of user ID, PDN mark, UE, described supported feature information is used for representing whether described V-PCRF supports to roam local service function, enters step 509.
Step 508, V-PCRF send S9 session modification request message to H-PCRF, IP address and the supported feature information of in described S9 session modification request message, carrying user ID, PDN mark, UE, described supported feature information is used for representing whether described V-PCRF supports to roam local service function.
Step 509, H-PCRF judge the local CAMEL-Subscription-Information that whether has described user according to the described user ID of receiving, in the time existing CAMEL-Subscription-Information and described CAMEL-Subscription-Information effective, enter step 510; In the time not there is not CAMEL-Subscription-Information, or there is CAMEL-Subscription-Information but described CAMEL-Subscription-Information when imperfect, or have CAMEL-Subscription-Information but described CAMEL-Subscription-Information while having lost efficacy, enter step 511.
Step 510, H-PCRF obtain described user's CAMEL-Subscription-Information from this locality according to described user ID, enter step 513.
Step 511, H-PCRF send CAMEL-Subscription-Information request message to the user-subscribed database H-SPR of home network, carry user ID and PDN mark in described CAMEL-Subscription-Information request message.
Step 512, receive that the H-SPR of CAMEL-Subscription-Information request returns to CAMEL-Subscription-Information response message to H-PCRF, described CAMEL-Subscription-Information response message is carried described user's CAMEL-Subscription-Information.
Step 513, H-PCRF are according to the supported feature information in the described user's who obtains CAMEL-Subscription-Information, S9 session establishment or modify request messages and/or the instruction of roaming local service function, and whether HPCRF support to roam local service function, judge whether to authorize roaming local service function to V-PCRF;
Concrete, when representing described V-PCRF, described supported feature information support roaming local service function, described user's CAMEL-Subscription-Information to represent this user roaming local service function of having contracted, and when H-PCRF supports roaming local service function, judge to V-PCRF and authorize roaming local service function;
When representing described V-PCRF, described supported feature information do not support to roam local service function, or described user's CAMEL-Subscription-Information represents the not signing roaming local service of this user function, or H-PCRF is not while supporting to roam local service function, judge that refusal authorizes roaming local service function to V-PCRF.
Step 514, H-PCRF return to S9 session establishment or amendment response message to V-PCRF, described S9 session establishment or amendment response message comprise roaming local service function indication field, and described roaming local service function indication field represents whether described H-PCRF authorizes roaming local service function to V-PCRF.
Here in described response message, can also comprise reason (reject cause) and the corresponding strategies of H-PCRF formulation etc. that operator's list (list) and service lists (list), refusal are authorized; Described strategy comprises PCC rule, event trigger etc.
The information that step 515, V-PCRF storage H-PCRF return, and return to IP-CAN session establishment acknowledge message to PCEF, in described acknowledge message, carry the strategy of V-PCRF formulation or the strategy that H-PCRF sends.
Step 516, AF send AF session establishment solicited message to V-PCRF, carry roaming local service information in described request information.
Roaming local service mandate corresponding to roaming local service information that step 517, V-PCRF send AF, and according to the described user's who obtains CAMEL-Subscription-Information, roaming local service corresponding to roaming local service information that AF is sent formulated PCC rule.
Step 518, V-PCRF return to AF session establishment response message to AF.
Described PCC rule is issued PCEF by step 519, V-PCRF.
After step 520, PCEF installation implementation strategy, return to acknowledge message to V-PCRF.
Below in conjunction with Fig. 6, a kind of the 3rd embodiment that roams local service function realizing method provided by the invention is introduced.
In the present embodiment, H-PCRF and V-PCRF support to roam local service function, UE roams into visited place from ownership place, in the time of access visited network, select roaming local service function, after angelica network authorization visited network can and lay down a regulation for roaming local service independent decision-making strategy, home network also needs strategy to visited network independent decision-making and the rule of formulation to carry out license confirmation.
Step 601, receive the PCEF of IP-CAN session establishment request message, send IP-CAN session establishment Indication message to V-PCRF, in described IP-CAN session establishment Indication message, carry the IP address of user ID, PDN mark, UE and the instruction of UE selection roaming local service function.
Step 602, V-PCRF judge the local CAMEL-Subscription-Information that whether has described user according to the described user ID of receiving, in the time existing CAMEL-Subscription-Information and described CAMEL-Subscription-Information effective, enter step 603; In the time not there is not CAMEL-Subscription-Information, or there is CAMEL-Subscription-Information but described CAMEL-Subscription-Information when imperfect, or have CAMEL-Subscription-Information but described CAMEL-Subscription-Information while having lost efficacy, enter step 604.
Step 603, V-PCRF obtain described user's CAMEL-Subscription-Information from this locality according to described user ID, enter step 606.
Step 604, V-PCRF send CAMEL-Subscription-Information request message to the user-subscribed database V-SPR of visited network, carry user ID and PDN mark in described CAMEL-Subscription-Information request message.
Step 605, receive that the V-SPR of CAMEL-Subscription-Information request returns to CAMEL-Subscription-Information response message to V-PCRF, described CAMEL-Subscription-Information response message is carried described user's CAMEL-Subscription-Information.
Step 606, V-PCRF judge whether to set up S9 session for described user according to described user ID, if do not set up S9 session for described user, enter step 607; If set up S9 session for described user, enter step 608.
Step 607, V-PCRF send S9 session establishment request message to H-PCRF, in described S9 session establishment request message, carry IP address, supported feature (supportfeature) field and roaming local service function request (RLS request) field of user ID, PDN mark, UE, described supported feature information is used for representing whether described V-PCRF supports to roam local service function, and described roaming local service function request field is used for representing that V-PCRF is to the mandate of H-PCRF request roaming local service function; Enter step 609.
Step 608, V-PCRF send S9 session modification request message to H-PCRF, in described S9 session modification request message, carry IP address, supported feature information and roaming local service function request (RLS request) field of user ID, PDN mark, UE, described supported feature information is used for representing whether described V-PCRF supports to roam local service function, and described roaming local service function request field is used for representing that V-PCRF is to the mandate of H-PCRF request roaming local service function.
Step 609, H-PCRF judge the local CAMEL-Subscription-Information that whether has described user according to the described user ID of receiving, in the time existing CAMEL-Subscription-Information and described CAMEL-Subscription-Information effective, enter step 610; In the time not there is not CAMEL-Subscription-Information, or there is CAMEL-Subscription-Information but described CAMEL-Subscription-Information when imperfect, or have CAMEL-Subscription-Information but described CAMEL-Subscription-Information while having lost efficacy, enter step 611.
Step 610, H-PCRF obtain described user's CAMEL-Subscription-Information from this locality according to described user ID, enter step 613.
Step 611, H-PCRF send CAMEL-Subscription-Information request message to the user-subscribed database H-SPR of home network, carry user ID and PDN mark in described CAMEL-Subscription-Information request message.
Step 612, receive that the H-SPR of CAMEL-Subscription-Information request returns to CAMEL-Subscription-Information response message to H-PCRF, described CAMEL-Subscription-Information response message is carried described user's CAMEL-Subscription-Information.
Whether step 613, H-PCRF support to roam local service function according to the supported feature information in the described user's who obtains CAMEL-Subscription-Information, S9 session establishment or modify request messages and/or the function instruction of roaming local service and HPCRF judges whether to authorize roaming local service function to V-PCRF;
Concrete, when representing described V-PCRF, described supported feature information support roaming local service function and described user's CAMEL-Subscription-Information to represent user's signing contract of admission random local service function, and when H-PCRF supports roaming local service function, judge to V-PCRF and authorize roaming local service function;
When representing described V-PCRF, described supported feature information do not support to roam local service function, or described user's CAMEL-Subscription-Information represents not signing contract of admission random local service function of this user, or H-PCRF is not while supporting to roam local service function, judge that refusal authorizes roaming local service function to V-PCRF.
Step 614, H-PCRF return to S9 session establishment or amendment response message to V-PCRF, described S9 session establishment or amendment response message comprise roaming local service function indication field, and described roaming local service function indication field represents whether described H-PCRF authorizes roaming local service function to V-PCRF.
Here in described response message, can also comprise reason (reject cause) and the corresponding strategies of H-PCRF formulation etc. that operator's list (1ist) and service lists (1ist), refusal are authorized; Described strategy comprises PCC rule, event trigger etc.
The information that step 615, V-PCRF storage H-PCRF return, and return to IP-CAN session establishment acknowledge message to PCEF, in described acknowledge message, carry the strategy of V-PCRF formulation or the strategy that H-PCRF sends.
Step 616, AF send AF session establishment solicited message to V-PCRF, carry roaming local service information in described request information.
Roaming local service mandate corresponding to roaming local service information that step 617, V-PCRF send AF, and roaming local service corresponding to the roaming local service information that AF is sent formulated PCC rule.
Step 618, V-PCRF send roaming local service function information and pre-authorization instruction to H-PCRF, and described pre-authorization instruction represents that V-PCRF authorizes roaming local service function corresponding to described roaming local service function information.
Step 619, receive that the H-PCRF of pre-authorization instruction carries out decision-making.The signing roaming local service function that allows user to access visited network mandate of angelica network strategy and user, H-PCRF confirms the mandate of V-PCRF, and preserving after described roaming local service function, returns to acknowledge message to V-PCRF.
Step 620, V-PCRF return to AF session establishment response message to AF, and according to the license confirmation message of the HPCRF obtaining, and described user's CAMEL-Subscription-Information etc., formulate PCC rule for this business, described PCC rule is issued to PCEF.If there is BBERF, formulate QoS, this QoS rule is sent to BBERF.
Step 621, for example, if need (business need be authorized for bis-times at HPCRF), H-PCRF can be according to business information, and the formulation PCC rules such as user is signing, network strategy also offer V-PCRF; If this business only needs HPCRF to confirm to authorize, directly carry out and issue PCC rule by VPCRF;
Step 622, V-PCRF provides PCC rule to PCEF;
Step 623, after PCEF installation implementation strategy, returns to acknowledge message to V-PCRF;
Step 624, V-PCRF returns to acknowledge message to H-PCRF.
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.

Claims (11)

1. a roaming local service function realizing method, is characterized in that, described method comprises:
In the time of S9 conversation establishing, the policy control of visited network and charging regulation function entity (V-PCRF) send policy control and the charging regulation function entity (H-PCRF) of roaming local service function authorization requests to home network;
H-PCRF receives described request, and in the time that H-PCRF supports roaming local service function and signing permission, H-PCRF authorizes roaming local service function to V-PCRF.
2. method according to claim 1, is characterized in that, described in the time of S9 conversation establishing, and V-PCRF sends roaming local service function authorization requests to H-PCRF, for,
V-PCRF sends S9 session establishment or modify request messages to H-PCRF, described S9 session establishment or modify request messages comprise supported feature information and/or roaming local service function request field, described supported feature information is used for representing whether described V-PCRF supports to roam local service function, and described roaming local service function request field is used for representing that V-PCRF is to the mandate of H-PCRF request roaming local service function;
Accordingly, H-PCRF receives described request, and in the time that H-PCRF supports roaming local service function and signing permission, H-PCRF authorizes roaming local service function to V-PCRF, for,
H-PCRF receives described request, and return to S9 session establishment or amendment response message to V-PCRF, in the time that H-PCRF supports roaming local service function and signing permission, described S9 session establishment or amendment response message comprise roaming local service function indication field and/or supported feature information, described roaming local service function indication field represents whether described H-PCRF authorizes roaming local service function to V-PCRF, and described supported feature information is used for representing whether described H-PCRF supports to roam local service function.
3. method according to claim 2, is characterized in that, before described H-PCRF authorizes roaming local service to V-PCRF, described method also comprises:
H-PCRF obtains described user's CAMEL-Subscription-Information.
4. method according to claim 3, is characterized in that, H-PCRF obtains described user's CAMEL-Subscription-Information, for,
H-PCRF according to the user totem information in described S9 session establishment or modify request messages from this locality or the user-subscribed database H-SPR of home network obtain described user's CAMEL-Subscription-Information.
5. method according to claim 1, it is characterized in that, described H-PCRF is after V-PCRF authorizes roaming local service, described method also comprises: the V-PCRF that receives roaming local service information generates strategy and charging control (PCC) rule, and described PCC rule is issued to strategy and charging execution function entity (PCEF).
6. a policy control and charging rule functional device (PCRF), is characterized in that, described PCRF comprises:
Authorization requests transmitting element, for when the S9 conversation establishing, sends roaming local service function authorization requests to policy control and the charging regulation function entity (H-PCRF) of home network;
Receiving element, the roaming local service function mandate of sending for receiving H-PCRF.
7. PCRF according to claim 6, it is characterized in that, described authorization requests transmitting element, specifically for sending S9 session establishment or modify request messages to H-PCRF, described S9 session establishment or modify request messages comprise supported feature information and/or roaming local service function request field, described supported feature information is used for representing whether described PCRF supports to roam local service function, and described roaming local service function request field is used for representing that described PCRF is to the mandate of H-PCRF request roaming local service function;
Described receiving element, S9 session establishment or the amendment response message sent specifically for receiving H-PCRF, described S9 session establishment or amendment response message comprise roaming local service function indication field and/or supported feature information, described roaming local service function indication field represents whether described H-PCRF authorizes roaming local service function to described PCRF, and described supported feature information is used for representing whether described H-PCRF supports to roam local service function.
8. a policy control and charging rule functional device (PCRF), it is characterized in that, described PCRF comprises: request reception unit, for receiving the policy control of visited network and the roaming local service function authorization requests that charging regulation function entity (V-PCRF) is sent;
Roaming local service function granted unit, in the time that local service function and signing permission are roamed in described PCRF support, authorizes and roams local service function to V-PCRF.
9. PCRF according to claim 8, it is characterized in that, described request receiving element, S9 session establishment or the modify request messages sent specifically for receiving V-PCRF, described S9 session establishment or modify request messages comprise supported feature information and/or roaming local service function request field;
Roaming local service function granted unit, specifically for return to S9 session establishment or amendment response message to V-PCRF, in the time that described PCRF supports roaming local service function and signing permission, described S9 session establishment or amendment response message comprise roaming local service function indication field and/or supported feature information, described roaming local service function indication field represents whether described PCRF authorizes roaming local service function to V-PCRF, and described supported feature information is used for representing whether described PCRF supports to roam local service function.
10. a roaming local service function realizes system, it is characterized in that, described system comprises: the policy control of the policy control of visited network and charging regulation function entity (V-PCRF) and home network and charging regulation function entity (H-PCRF), wherein
Described V-PCRF, for when the S9 conversation establishing, sends roaming local service function authorization requests to described H-PCRF;
Described H-PCRF, the roaming local service function authorization requests of sending for receiving V-PCRF, in the time that H-PCRF supports roaming local service function and signing permission, authorizes roaming local service function to V-PCRF.
11. systems according to claim 10, it is characterized in that, described V-PCRF, specifically for sending S9 session establishment or modify request messages to H-PCRF, described S9 session establishment or modify request messages comprise supported feature information and/or roaming local service function request field, described supported feature information is used for representing whether described V-PCRF supports to roam local service function, and described roaming local service function request field is used for representing that V-PCRF is to the mandate of H-PCRF request roaming local service function;
Described H-PCRF, the roaming local service function authorization requests of sending specifically for receiving V-PCRF, return to S9 session establishment or amendment response message to V-PCRF, in the time that H-PCRF supports roaming local service function and signing permission, described S9 session establishment or amendment response message comprise roaming local service function indication field and/or supported feature information, described roaming local service function indication field represents whether described H-PCRF authorizes roaming local service function to V-PCRF, described supported feature information is used for representing whether described H-PCRF supports to roam local service function.
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