CN102143530B - A kind of policy control method to the access of mobile subscriber this locality and system - Google Patents

A kind of policy control method to the access of mobile subscriber this locality and system Download PDF

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Publication number
CN102143530B
CN102143530B CN201010110823.1A CN201010110823A CN102143530B CN 102143530 B CN102143530 B CN 102143530B CN 201010110823 A CN201010110823 A CN 201010110823A CN 102143530 B CN102143530 B CN 102143530B
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policy
entity
strategy
network
fixed network
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CN102143530A (en
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芮通
孙默
周娜
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2010/078824 priority patent/WO2011095025A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/82—Miscellaneous aspects
    • H04L47/824—Applicable to portable or mobile terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/80—Actions related to the user profile or the type of traffic
    • H04L47/805—QOS or priority aware
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access

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

Abstract

The invention discloses a kind of policy control method to the access of mobile subscriber this locality, comprise: the policy decision entity of mobile network is that IP connected reference network (IP-CAN) session is generated strategy, and the strategy of formulation is sent to the policy execution entity of mobile network and the policy decision entity of fixed network respectively; The strategy of reception is sent to the policy execution entity of fixed network by the policy decision entity of fixed network; The policy execution entity of mobile network and the policy execution entity of fixed network are installed and are performed received strategy.The invention also discloses a kind of system of the policy control to the access of mobile subscriber this locality.By method and system of the present invention, achieve and dynamic quality of service (QoS) control is carried out to the flow of the data flow of mobile subscriber's local IP access.

Description

A kind of policy control method to the access of mobile subscriber this locality and system
Technical field
The present invention relates to the access technology of moving communicating field, particularly relate to a kind of policy control method to the access of mobile subscriber this locality and system.
Background technology
Third generation partner program (3GPP, 3rdGenerationPartnershipProject) grouping system (the EPS of evolution, EvolvedPacketSystem) by the universal mobile telecommunications system land radio access web (E-UTRAN of evolution, EvolvedUniversalTerrestrialRadioAccessNetwork), mobile management unit (MME, MobilityManagementEntity), gateway (S-GW, ServingGateway), grouped data network gateway (P-GW, PacketDataNetworkGateway), home subscriber server (HSS, HomeSubscriberServer), authentication and authorization charging (the AAA of 3GPP, Authentication, AuthorizationandAccounting) server, "Policy and Charging Rules Function entity (PCRF, PolicyandChargingRulesFunction) and other support nodes composition.
As shown in Figure 1, MME is responsible for the associative operation of the chain of command such as process and the contextual management of user's mobile management of mobile management, Non-Access Stratum signaling to existing EPS framework; S-GW is the accessing gateway equipment be connected with E-UTRAN, forwarding data between E-UTRAN and P-GW, and is responsible for carrying out buffer memory to pending datas such as pagings; P-GW is then the borde gateway of EPS and packet data network (PDN, PacketDataNetwork), be responsible for PDN access and between EPS and PDN forwarding data etc.; S-GW and P-GW belongs to core network gateway; PCRF is by receiving interface Rx and carrier network agreement (IP, InternetProtocol) business network is connected, obtain business information, in addition, PCRF is connected with the gateway device in network by Gx/Gxa/Gxc interface, is responsible for the foundation initiating IP carrying, ensures the service quality (QoS of business datum, and carry out charging control QualityofService).
EPS supports the intercommunication with non-3 GPP system, and wherein, pass through S2a/b/c Interface realization with the intercommunication of non-3 GPP system, P-GW is as the anchor point between 3GPP and non-3 GPP system.In the system architecture diagram of EPS, non-3 gpp IP Access Network is divided into trusted non-3 gpp IP Access Network and trustless non-3 gpp IP Access Network.Trusted non-3 gpp IP Access Network can be directly connected with P-GW by S2a interface; Trustless non-3 gpp IP Access Network need through the packet data gateway (ePDG of evolution, EvolvedPacketDataGateway) be connected with P-GW, interface between ePDG and P-GW is S2b, S2c provides subscriber equipment (UE, UserEquipment) relevant to the user face between P-GW control and mobility support, its mobility management protocol supported is the mobile IP v 6 (DSMIPv6, MobileIPv6SupportforDualStackHostsandRouters) supporting two stack.
In EPS, strategy and charging execution function entity (PCEF, PolicyandChargingEnforcementFunction) are present in P-GW, by Gx interface exchange message between PCRF and P-GW.Interface when between P-GW and S-GW is based on proxy mobile IPv 6 (PMIPv6, ProxyMobileIPv6) time, S-GW also has bearing binding and event reporting function (BBERF, BearerBindingandEventReportFunction) QoS control is carried out to business data flow, by Gxc interface exchange message between S-GW and PCRF.When by the access of trusted non-3 GPP access network, the trusted non-3 GPP access network Central Shanxi Plain also resident BBERF.By Gxa interface exchange message between trusted non-3 GPP access gateway and PCRF.
When UE roams, S9 interface is as the interface of ownership place PCRF and visited place PCRF, simultaneously for UE provides the application function (AF of business, ApplicationFunction), sent the business information being used for generating strategy with charging control (PCC, PolicyandChargingControl) strategy to PCRF by Rx interface.In 3 gpp, corresponding PDN network can be found by APN (APN, AccessPointName).Usually UE to PDN network connection is called that an IP connects Access Network (IP-CAN, IPConnectivityAccessNetwork) session.In the process setting up IP-CAN session, BBERF and PCEF respectively and set up Diameter session between PCRF, transmits the policy, billing information that controls this IP-CAN session and the information etc. for generating strategy by these Diameter sessions.
Base station from home is a kind of small-sized, lower powered base station, be deployed in the indoor place such as family and office, Main Function is to provide higher service rate to user and reduce the expense used required for high rate services, making up the deficiency that existing distributed cellular radio communication system covers simultaneously.In home base station system, base station from home is wireless side network element.Base station from home can be directly connected to core network, as shown in Figure 2 a; Also core network can be linked into by this logical ne of home base-station gateway, as shown in Figure 2 b, wherein, the major function of home base-station gateway is: the fail safe of checking base station from home, the registration of process base station from home, operation maintenance management is carried out to base station from home, according to Carrier Requirements configuration and control base station from home, is responsible for data of exchcange core net and base station from home etc.
Except supporting the access of mobile core network, mobile communication system (comprising home base station system) also can support local IP access function, wireless side network element possess local IP access ability and user contract allow local IP access condition under, this locality access of terminal to other IP devices of home network or internet can be realized.
The realization of local IP access can adopt multiple connection establishment mode: the access function simultaneously realizing core net access and local IP by setting up a connection, as shown in Figure 2 a and 2 b, now without the need to setting up the function of local gateway on wireless side network element or home base-station gateway; Also by setting up local gateway to provide providing powerful support for local IP access technology, local gateway can carry out conjunction with wireless side network element and establish, as shown in Figure 3 a.When there is home base-station gateway, local gateway not only can carry out conjunction with base station from home and establish, and also can carry out conjunction with home base-station gateway and establish, as shown in Figure 3 b.Local gateway can be local SGW (L-SGW, LocalSGW) and local PGW (L-PGW, LocalPGW), can be independent L-PGW.In addition, home base-station gateway can carry out conjunction with base station from home and establishes.For universal terrestrial access network (UTRAN, UniversalTerrestrialRadioAccessNetwork) system, core network gateway can be Serving GPRS Support Node (SGSN, ServingGPRSSupportNode), Gateway GPRS Support Node (GGSN, GatewayGPRSSupportNode).Local gateway can be local GGSN (L-GGSN, LocalGGSN) and local SGSN (L-SGSN, LocalSGSN), can be independent L-GGSN.
With Long Term Evolution (LTE, LongTermEvolution) mobile communications network framework is example, Fig. 4 a shows the data flow that local IP access is connected with core net in the wireless communication system of Fig. 2 a, wherein, the flow of local IP access by fixed network access device access fixed network, as shown in Figure 5 a.Fig. 4 b shows the data flow that local IP access is connected with core net in the wireless communication system of Fig. 3 a, wherein, the flow of local IP access by fixed network access device access fixed network, as shown in Figure 5 b.
A kind of access technology similar with local IP access is femtocell (Femtocell), and mobile operator is in order to bring better experience to user, and this kind of base station from home of a large amount of deployment, solves with this and cover not enough problem; By fixed broadband access for the user in indoor environment provide better quality, speed faster, serve more mobile service; The data flow of user is accessed by base station from home, utilize the existing ADSL (Asymmetric Digital Subscriber Line) (ADSL of user, AsymmetricDigitalSubscriberLine), local area network (LAN) (LAN, the data of user are sent in network by the broadband connection such as LocalAreaNetwork).
When user is mobile subscriber, the business datum of this user flows through base station from home and flows to fixed network transmission node, as Access Network (AN, AccessNetwork), Broadband Remote Access Server (BRAS, BroadbandRemoteAccessServer), wideband network gateway (BNG, the equipment such as BroadbandNetworkGateway), then flow to mobile network or directly gone out by local routing, as shown in the Femtocell incoming data stream in Fig. 5 c; Operator also can dispose Wireless Fidelity (WIFI, WirelessFidelity) wireless coverage is provided, as shown in the WIFI incoming data stream in Fig. 5 c, in order to better business experience can be brought to user, need for these data flow provide corresponding QoS service quality, this means that the resource needs of each node (comprising fixed network transmission equipment and Mobile Transmission equipment) that this data flow flows to are guaranteed.
For the resources control of fixed network, three large normal structures are had to study at present.
For the communication of high-level network and the business of the Internet converged and agreement (TISPAN, TelecommunicationandInternetconvergedServicesandProtocol sforAdvancedNetworking) propose Resource and Admission Control Sub-system (RACS, ResourceandAdmissionControlSubsystem) the QoS problem of next generation network (NGN, NextGenerationNetwork) bearer network is solved.NGN framework is divided into operation layer and transport layer by TISPAN, RACS and Network Attachment Subsystem (NASS is introduced in transport layer, NetworkAttachmentSubSystem), RACS solves the QoS problem of NGN bearer network, and NASS is then responsible for upper-layer service layer and provides independently user access administration.The major function of TISPANRACS and standardization department of international telecommunication union telecommunication (ITU-T, InternationalTelecommunicationUnionTelecommunicationssta ndardizationsector) resource accommodating control function entity (RACF, ResourceandAdmissionControlFunctions) similar.
The function structure of TISPANRACS, as shown in Figure 6, the resource requirement of operation layer is associated with the Resourse Distribute of transport layer by RACS, mainly complete policy control, the function such as resource reservation, call access control, network address translation (NAT, NetworkAddressTranslation) are passed through.RACS provides the control service of transport layer by a series of qos policy for operation layer, makes user terminal (UE, UserEquipment) can obtain required service quality assurance.
RACS is made up of two entities: based on the policy deciding functional entity (SPDF of business, and accommodating access resource controlling functions entity (Access-Resource and Admission Control Function, Access-ResourceandAdmissionControlFunction) Service-basedPolicyDecisionFunction).Wherein, SPDF provides unified interface to application layer, the access style that shielding bottom-layer network topological sum is concrete, provides the policy control based on business; SPDF is according to Application Function (AF, ApplicationFunction) request selecting local policy, and request is mapped to IPQoS parameter, send to Access-Resource and Admission Control Function and Border Gateway Function entity (BGF, BorderGatewayFunction), to control corresponding resource.Access-Resource and Admission Control Function is arranged in Access Network, has the function of call access control and network strategy convergence; Receive request from SPDF, then realize call access control based on preserved strategy, accept or the request of refusal to transfer resource; Access-Resource and Admission Control Function obtains network attachment information and user signing contract information by e4 interface from NASS, thus available Internet resources can be determined according to network location information (address of the physical node of such as access user), the reference user signing contract information when processing resource allocation request simultaneously.
Three kinds of functional entitys are comprised: access node, BGF, Resource Control Enforcement Function entity (RCEF, ResourceControlEnforcementFunction) in transport layer.Wherein, BGF is that a bag arrives packet gateway, (can realize Core Border Gateway Function), also between two core net, (can realize Interconnected Border gateway function) between Access Network and core net.BGF completes under the control of SPDF that NAT passes through, the restriction of gate, QoS marker, bandwidth, use and measure and source synchronous function.RCEF implements two layers/tri-layers (L2/L3) Media Stream strategy of the access carrier definition that Access-Resource and Admission Control Function is sent by Re interface, completes the functions such as gate, QoS marker, bandwidth restriction.
ITU-T is the telecommunications department of International Telecommunication Union (ITU, InternationalTelecommunicationUnion), has formulated the standard of related resources call access control.In the RACF draft of the up-to-date announcement of ITU-T, provide the functional framework of RACF, as shown in Figure 7, RACF is made up of two parts, policy deciding functional entity (PD-FE respectively, and transfer resource controlling functions entity (TRC-FE, TransportResourceControlFunctionalEntity) PolicyDecisionFunctionalEntity).Wherein, TRC-FE is mutual by Rc and transfer function, by Rn and transfer resource n-back test entity (TRE-FE, TransportResourceEnforcementFunctionalEntity) alternately; PD-FE is mutual by Rt and TRC-FE, by Rh and the local network of users (CPN, CustomerPremisesNetwork) mutual, by Rw and policy execution functional entity (PE-FE, PolicyEnforcementFunctionalEntity) mutual, by the business control function body (SCF of Rs and operation layer, ServiceControlFunctions) mutual, by Ru and network attachment controlling functions (NACF, NetworkAttachmentControlFunctions) mutual, and PD-FE passes through Ri interface and other NGN are mutual.
In addition, PD-FE and transmission technology have nothing to do, and also have nothing to do with SCF, the transport layer CAMEL-Subscription-Information that the business information that PD-FE policing rule Network Based, SCF provide, NACF provide, and the Resource Availability result of decision that TRC-FE provides, make the last decision-making of resource and admission control.
TRC-FE and business have nothing to do, but relevant to transmission technology.TRC-FE is responsible for collecting and safeguarding transmission network information and resource state information, and after receiving resource request from PD-FE, TRC-FE, based on QoS, priority requirements, Resource availability information and the policing rule relevant to transmission, performs resource-based call access control.
Transport layer PE-FE and TRE-FE composition.PE-FE performs the policing rule that PD-FE issues, PE-FE is that bag is to packet gateway, can, between CPN and access network, between Access Network and core net or between different operators network, be the key node supporting that dynamic QoS control, port address conversion and control and NAT pass through.TRE-FE performs the transfer resource policing rule that TRC-FE issues.
Broadband Forum (BBF, BroadbandForum) propose broadband policy and control framework centralized deployment function structure (BPCF, CentralizedDeploymentFunctionalArchitecture), as shown in Figure 8, the major function of policy decision point (PDP, PolicyDecisionPoint) formulates corresponding strategy; The corresponding strategy that Policy Enforcement Point (PEF, PolicyEnforcementPoint) is formulated according to PDP performs; AAA stored user CAMEL-Subscription-Information; AF is that PDP generates strategy, and provides corresponding business information.
But, at current local IP access (LIPA, LocalIPAccess) in technology, how to carry out dynamic QoS to the flow of the data flow of mobile subscriber's local IP access controls not yet clear and definite, when mobile network and fixed network adhere to different operators separately, there will be the situation that accurately cannot control this part flow, thus the transmission quality of these data flow can be caused to be guaranteed, affect normally carrying out and O&M of Network.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of policy control method to the access of mobile subscriber this locality and system, to realize carrying out dynamic QoS control to the flow of the data flow of mobile subscriber's local IP access.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of policy control method to the access of mobile subscriber this locality, the method comprises:
The policy decision entity of mobile network is that IP connected reference network (IP-CAN) session is generated strategy, and the strategy of formulation is sent to the policy execution entity of mobile network and the policy decision entity of fixed network respectively;
The strategy of reception is sent to the policy execution entity of fixed network by the policy decision entity of described fixed network;
The policy execution entity of described mobile network and the policy execution entity of fixed network are installed and are performed received strategy.
The method comprises further:
After the policy decision entity of described fixed network receives strategy, described strategy is preserved, and the strategy preserved is mapped and/or adjusted;
Strategy after mapping and/or adjustment is sent to the policy execution entity of fixed network by the policy decision entity of described fixed network.
The method comprises further:
In described IP-CAN conversation procedure, when the policy decision entity of mobile network is subject to inside or external trigger, and when needing to upgrade the strategy formulated, the strategy after renewal is sent to the policy execution entity of mobile network and the policy decision entity of fixed network by the policy decision entity of described mobile network respectively; Strategy after renewal is transmitted to the policy execution entity of fixed network by the policy decision entity of described fixed network;
The policy execution entity of described mobile network and the policy execution entity of fixed network are installed and are performed the strategy after upgrading.
The method comprises further:
When described IP-CAN conversation end, the policy decision entity of described mobile network notifies that the policy execution entity of mobile network deletes the strategy relevant to described IP-CAN session with the policy decision entity of fixed network;
The policy execution entity of described mobile network and the policy decision entity of fixed network respectively implementation strategy are deleted, and the policy execution entity of the policy decision entity of described fixed network notice fixed network deletes the strategy relevant to described IP-CAN session;
The policy execution entity implementation strategy of described fixed network is deleted.
The policy decision entity of described fixed network is: Resource and Admission Control Sub-system (RACS) or resource accommodating control function entity (RACF) or policy decision point (PDP).
The policy execution entity of described fixed network is: Resource Control Enforcement Function entity (RCEF) or policy execution functional entity (PE-FE) or Policy Enforcement Point (PEP).
If described mobile subscriber is this locality access connected based on local IP access (LIPA), then the policy execution entity of described mobile network comprise following one of at least: wireless side network element, local gateway (L-GW) and home base-station gateway; Wherein, described wireless side network element comprise following one of at least: base station, base station from home and radio network controller;
If described mobile subscriber is this locality access connected based on femtocell (Femtocell) or Wireless Fidelity (WIFI), then the policy execution entity of described mobile network comprise following one of at least: strategy and charging execution function entity (PCEF) and bearing binding and event reporting function entity (BBERF).
Described strategy is service quality (QoS) strategy and/or charging policy.
Present invention also offers a kind of policy controlling system to the access of mobile subscriber this locality, this system comprises: the policy decision entity of mobile network, the policy execution entity of mobile network, the policy decision entity of fixed network and the policy execution entity of fixed network, wherein,
The policy decision entity of described mobile network, for generating strategy for IP-CAN session, and sends to the policy execution entity of mobile network and the policy decision entity of fixed network respectively by the strategy of formulation;
The policy execution entity of described mobile network, for installing and performing received strategy;
The policy decision entity of described fixed network, for sending to the policy execution entity of fixed network by the strategy of reception;
The policy execution entity of described fixed network, for installing and performing received strategy.
The policy decision entity of described fixed network is further used for, and after receiving strategy, preserves described strategy, and maps the strategy preserved and/or adjust, then the strategy after mapping and/or adjustment is sent to the policy execution entity of fixed network.
The policy decision entity of described mobile network is further used for, in described IP-CAN conversation procedure, when the policy decision entity of mobile network is subject to inside or external trigger, and when needing to upgrade the strategy formulated, the strategy after upgrading is sent to the policy execution entity of mobile network and the policy decision entity of fixed network respectively;
Accordingly, the policy decision entity of described fixed network is further used for, and the strategy after renewal is transmitted to the policy execution entity of fixed network;
The policy execution entity of described mobile network and the policy execution entity of fixed network are further used for, and install and perform the strategy after upgrading.
The policy decision entity of described mobile network is further used for, and when described IP-CAN conversation end, notifies that the policy execution entity of mobile network deletes the strategy relevant to described IP-CAN session with the policy decision entity of fixed network;
Accordingly, the policy decision entity of described fixed network is further used for, and implementation strategy is deleted, and notifies that the policy execution entity of fixed network deletes the strategy relevant to described IP-CAN session;
The policy execution entity of described mobile network and the policy execution entity of fixed network are further used for, and implementation strategy is deleted respectively.
The policy decision entity of described fixed network is: RACS or RACF or PDP.
The policy execution entity of described fixed network is: RCEF or PE-FE or PEP.
If described mobile subscriber is this locality access connected based on LIPA, then the policy execution entity of described mobile network comprise following one of at least: wireless side network element, L-GW and home base-station gateway; Wherein, described wireless side network element comprise following one of at least: base station, base station from home and radio network controller;
If described mobile subscriber is this locality access connected based on Femtocell or WIFI, then the policy execution entity of described mobile network comprise following one of at least: PCEF and BBERF.
A kind of policy control method to the access of mobile subscriber this locality provided by the present invention and system, when mobile subscriber is by local access, the policy decision entity of mobile network is that the local IP-CAN session accessed is generated strategy, and the strategy of formulation is sent to the policy execution entity of mobile network and the policy decision entity of fixed network respectively; The strategy of reception is transmitted to the policy execution entity of fixed network by the policy decision entity of fixed network; The policy execution entity of mobile network and the policy execution entity of fixed network are installed and are performed received strategy.Pass through the present invention, achieve and dynamic QoS control is carried out to the flow of the data flow of mobile subscriber's local IP access, avoid when mobile network and fixed network adhere to different operators separately, accurately cannot control the situation of this part flow, the transmission quality of these data flow is guaranteed.
Accompanying drawing explanation
Fig. 1 is the system architecture schematic diagram of EPS in prior art;
Fig. 2 a is the schematic diagram one that in prior art, mobile communications network connects;
Fig. 2 b is the schematic diagram two that in prior art, mobile communications network connects;
Fig. 3 a is the schematic diagram three that in prior art, mobile communications network connects;
Fig. 3 b is the schematic diagram four that in prior art, mobile communications network connects;
Fig. 4 a is the schematic diagram one of the local IP incoming data stream of mobile communication system in prior art;
Fig. 4 b is the schematic diagram two of the local IP incoming data stream of mobile communication system in prior art;
Fig. 5 a is the schematic diagram one of mobile communication system local IP access fixed network transfer device data stream in prior art;
Fig. 5 b is the schematic diagram two of mobile communication system local IP access fixed network transfer device data stream in prior art;
Fig. 5 c is the schematic diagram three of mobile communication system local IP access fixed network transfer device data stream in prior art;
Fig. 6 is the schematic diagram of TISPANRACS resources control framework in prior art;
Fig. 7 is the schematic diagram of ITU-TRACF resources control framework in prior art;
Fig. 8 is the schematic diagram of BPCF resources control framework in prior art;
Fig. 9 a is the schematic diagram one that in the present invention, local IP access connects;
Fig. 9 b is the schematic diagram two that in the present invention, local IP access connects;
Fig. 9 c is the schematic diagram three that in the present invention, local IP access connects;
Figure 10 a is the policy control method flow chart of the embodiment of the present invention one;
Figure 10 b is the policy control method flow chart of the embodiment of the present invention two;
Figure 11 a is the policy control method flow chart of the embodiment of the present invention three;
Figure 11 b is the policy control method flow chart of the embodiment of the present invention four;
Figure 12 a is the policy control method flow chart of the embodiment of the present invention five;
Figure 12 b is the policy control method flow chart of the embodiment of the present invention six.
Embodiment
Below in conjunction with the drawings and specific embodiments, the technical solution of the present invention is further elaborated.
For realizing carrying out dynamic QoS control to the flow of the data flow of mobile subscriber's local IP access, the invention provides a kind of policy control method to the access of mobile subscriber this locality, its core concept is: when mobile subscriber is by local access, the policy decision entity of mobile network is the IP connected reference network (IP-CAN of local access, IP-ConnectivityAccessNetwork) session is generated strategy, and the strategy of formulation is sent to the policy execution entity of mobile network and the policy decision entity of fixed network respectively; The strategy of reception is transmitted to the policy execution entity of fixed network by the policy decision entity of fixed network; The policy execution entity of mobile network and the policy execution entity of fixed network are installed and are performed received strategy.
In addition, in IP-CAN conversation procedure, when the policy decision entity of mobile network is subject to inside or external trigger, and when needing to upgrade the strategy formulated, the strategy after renewal is sent to the policy execution entity of mobile network and the policy decision entity of fixed network by the policy decision entity of mobile network respectively; Strategy after renewal is transmitted to the policy execution entity of fixed network by the policy decision entity of fixed network; The policy execution entity of mobile network and the policy execution entity of fixed network are installed and are performed the strategy after upgrading.
When IP-CAN conversation end, the policy decision entity of mobile network notifies that the policy execution entity of mobile network deletes the strategy relevant to IP-CAN session with the policy decision entity of fixed network; The policy execution entity of mobile network and the policy decision entity of fixed network respectively implementation strategy are deleted, and the policy execution entity of the policy decision entity of fixed network notice fixed network deletes the strategy relevant to IP-CAN session; The policy execution entity implementation strategy of fixed network is deleted.
It should be noted that, the policy decision entity of fixed network, after receiving strategy, needs the strategy to receiving to preserve.Due to the otherness of mobile network and fixed network, the policy decision entity of fixed network may need to be the strategy in fixed network by the policy mappings of reception, as: the qos parameter qos parameter in mobile network being mapped as fixed network; When mobile network and fixed network belong to different operators, also may need to adjust the strategy received based on the agreement of signing between operator, as: improve or reduce bandwidth, raising or reduce QoS grade.After mapping and/or adjustment, the strategy after mapping and/or adjustment is sent to the policy execution entity of fixed network by the policy decision entity of fixed network again.
In addition, the policy decision entity of the mobile network in the present invention can be PCRF; The policy decision entity of fixed network can for the RACS in framework shown in Fig. 6, also can for the RACF in framework shown in Fig. 7, can also for the PDP in framework shown in Fig. 8; The policy execution entity of fixed network can for the RCEF in framework shown in Fig. 6, also can for the PE-FE in framework shown in Fig. 7, can also for the PEP in framework shown in Fig. 8.
Access if mobile subscriber is this locality be connected based on LIPA shown in Fig. 9 a (L-GW sets up separately with wireless side network element) or 9b (L-GW close establish) with wireless side network element, then the policy execution entity of mobile network comprise following one of at least: wireless side network element, L-GW and home base-station gateway; Wherein, wireless side network element comprise following one of at least: base station, base station from home and radio network controller; If mobile subscriber is this locality access connected based on Femtocell or WIFI shown in Fig. 9 c, then the policy execution entity of mobile network comprise following one of at least: PCEF and BBERF.
Below in conjunction with specific embodiment, above-mentioned policy control method is elaborated further.
In embodiments of the invention one, after mobile subscriber completes certification, PCRF is subject to an inside or the triggering of outside (such as: receive the request message from L-GW), needs to generate strategy for LIPA connects, and this strategy can be qos policy and/or charging policy; PCRF issues the strategy of formulation to the policy execution entity of mobile network, and sends this strategy to the policy decision entity (RACS/RACF/PDP) of fixed network; The policy decision entity (RACS/RACF/PDP) of fixed network preserves the strategy received also can to mapping this strategy and/or adjusting, be handed down to the policy execution entity (RCEF/PE-FE/PEP) of fixed network afterwards, thus ensure that the QoS on each node that the data flow that this LIPA connects flows to can be guaranteed.Specific implementation flow process as shown in Figure 10 a, mainly comprises the following steps:
Step 101, PCRF is triggered, and formulates corresponding strategy for LIPA connects.
Step 102, the strategy of formulation is sent to the policy execution entity of mobile network by PCRF, and this policy execution entity can be: in wireless side network element, L-GW, home base-station gateway one of at least.
Step 103, the policy execution entity of mobile network, after receiving strategy, is installed and performs this strategy.
Step 104, the strategy of formulation is sent to the policy decision entity of fixed network by PCRF, and the policy decision entity of this fixed network can be: RACS or RACF or PDP.
Step 105, the policy decision entity of fixed network preserves the strategy received, and can map the strategy received and/or adjust.
Step 106, this strategy is sent to the policy execution entity of fixed network by the policy decision entity of fixed network, and the policy execution entity of this fixed network can be: RCEF or PE-FE or PEP.
If have mapping and/or the adjustment of implementation strategy in step 105, what so send to the policy execution entity of fixed network in step 106 is mapping and/or the strategy after adjusting.
Step 107, the policy execution entity of fixed network is installed and is performed received strategy.
Wherein, step 102 and step 104 can concurrence performance.
In embodiments of the invention two, after mobile subscriber completes certification, PCRF is subject to the triggering (such as: receive the request message from L-GW) of an inside or outside, needs to generate strategy for Femtocell/WIFI connects, and this strategy can be qos policy and/or charging policy; PCRF issues the strategy of formulation to the policy execution entity of mobile network, and sends this strategy to the policy decision entity (RACS/RACF/PDP) of fixed network; The policy decision entity (RACS/RACF/PDP) of fixed network preserves the strategy received also can to mapping this strategy or adjusting, be handed down to the policy execution entity (RCEF/PE-FE/PEP) of fixed network afterwards, thus ensure that the QoS on each node that the data flow that this Femtocell/WIFI connects flows to can be guaranteed.
Now, because UE and mobile core network equipment set up IP safety (IP-Sec) tunnel, the strategy being therefore handed down to the policy execution entity of fixed network can be the dynamic strategy issued for IP-Sec tunnel.Specific implementation flow process as shown in fig. lob, mainly comprises the following steps:
Step 201, PCRF is triggered, and formulates corresponding strategy for Femtocell/WIFI connects.
Step 202, the strategy of formulation is sent to the policy execution entity of mobile network by PCRF, and this policy execution entity can be: PCEF and/or BBERF.
Step 203, the policy execution entity of mobile network, after receiving strategy, is installed and performs this strategy.
It should be noted that, if data flow is without mobile network, and gone out by fixed network transmission equipment direct routing, the strategy that so PCRF formulates does not need the policy execution entity sending to mobile network, namely in this case, the operation of step 202 ~ 203 can perform.
Step 204, the strategy of formulation is sent to the policy decision entity of fixed network by PCRF, and the policy decision entity of this fixed network can be: RACS or RACF or PDP.
Step 205, the policy decision entity of fixed network preserves the strategy received, and can map the strategy received or adjust.
Step 206, this strategy is sent to the policy execution entity of fixed network by the policy decision entity of fixed network, and the policy execution entity of this fixed network can be: RCEF or PE-FE or PEP.
Step 207, the policy execution entity of fixed network is installed and is performed received strategy.
Wherein, step 202 and step 204 can concurrence performance.
In embodiments of the invention three, in IP-CAN conversation procedure, PCRF is subject to the triggering (internal trigger such as carrier policy changes, and external trigger such as user contracting data sends change) of inside or outside, needs the strategy to formulating before to upgrade; PCRF upgrades to policy decision entity (RACS/RACF/PDP) notice of fixed network; The policy decision entity of fixed network preserves the strategy after upgrading, and by the policy distribution after upgrading to the policy execution entity of fixed network (RCEF/PE-FE/PEP), after the policy decision entity of fixed network receives update notification, installs and strategy after performing renewal.
PCRF also by the policy distribution after upgrading to the policy decision entity of mobile network, this entity can be local gateway and/or home base-station gateway and/or wireless side network element; After the policy decision entity of mobile network receives renewal, install and perform the strategy after upgrading.Specific implementation flow process as shown in fig. lla, mainly comprises the following steps:
Step 301, PCRF is subject to the triggering of inside or outside, needs the strategy to formulating before to upgrade.
Step 302, PCRF upgrades to the policy execution entity notification strategy of mobile network, and this policy execution entity can be: in wireless side network element, L-GW, home base-station gateway one of at least.
PCRF carries the ID needing the strategy upgraded in an announcement message, thus the policy execution entity of mobile network upon receiving the notification message, can know which strategy needs to upgrade.
Step 303, the policy execution entity of mobile network receives the strategy after renewal, installs and performs this strategy.
Step 304, PCRF upgrades to the policy decision entity notification strategy of fixed network, and this policy decision entity can be: RACS or RACF or PDP.
Step 305, the policy decision entity of fixed network preserves the strategy after upgrading, and can map the strategy received or adjust.
Step 306, the policy execution entity notification strategy to fixed network upgrades by the policy decision entity of fixed network, and this policy execution entity can be: RCEF or PE-FE or PEP.
Step 307, the policy execution entity of fixed network is according to also performing the strategy after upgrading.
Wherein, step 302 and step 304 can concurrence performance.
In embodiments of the invention four, in IP-CAN conversation procedure, PCRF is subject to the triggering of inside or outside, needs the strategy to formulating before to upgrade; PCRF upgrades to policy decision entity (RACS/RACF/PDP) notice of fixed network; The policy decision entity of fixed network preserves the strategy after upgrading, and by the policy distribution after upgrading to the policy execution entity of fixed network (RCEF/PE-FE/PEP), after the policy decision entity of fixed network receives update notification, installs and strategy after performing renewal.
PCRF also by upgrade after policy distribution to the policy decision entity of mobile network, this entity can be PCEF and/or BBERF; After the policy decision entity of mobile network receives renewal, install and perform the strategy after upgrading.
Now, because UE and mobile core network equipment set up IP-Sec tunnel, the strategy being therefore handed down to the policy execution entity of fixed network can be the dynamic strategy issued for IP-Sec tunnel.Specific implementation flow process as shown in figure lib, mainly comprises the following steps:
Step 401, PCRF is subject to the triggering of inside or outside, needs the strategy to formulating before to upgrade.
Step 402, PCRF upgrades to the policy execution entity notification strategy of mobile network, and this policy execution entity can be: PCEF and/or BBERF.
Step 403, the policy execution entity of mobile network receives the strategy after renewal, installs and performs this strategy.
It should be noted that, if data flow is without mobile network, and gone out by fixed network transmission equipment direct routing, the strategy so after PCRF renewal does not need the policy execution entity sending to mobile network, namely in this case, the operation of step 402 ~ 403 can perform.
Step 404, PCRF upgrades to the policy decision entity notification strategy of fixed network, and this policy decision entity can be: RACS or RACF or PDP.
Step 405, the policy decision entity of fixed network preserves the strategy after upgrading, and can map the strategy received or adjust.
Step 406, the policy execution entity notification strategy to fixed network upgrades by the policy decision entity of fixed network, and this policy execution entity can be: RCEF or PE-FE or PEP.
Step 407, the policy execution entity of fixed network is according to also performing the strategy after upgrading.
Wherein, step 402 and step 404 can concurrence performance.
In embodiments of the invention five, when LIPA Connection Release, PCRF notifies that the policy decision entity (RACS/RACF/PDP) of fixed network deletes strategy associated with the session, and the decision-making of the policy decision entity notice fixed network of fixed network performs entity (RCEF/PE-FE/PEP) and deletes strategy associated with the session.Specific implementation flow process as figure 12 a shows, mainly comprises the following steps:
Step 501, when LIPA Connection Release, PCRF knows conversation end, and needs notice to delete strategy associated with the session.
Step 502, PCRF notifies that the policy execution entity of mobile network deletes strategy associated with the session, and this policy execution entity can be: in wireless side network element, L-GW, home base-station gateway one of at least.
PCRF carries the ID needing the strategy deleted in an announcement message, thus the policy execution entity of mobile network upon receiving the notification message, can know which strategy needs to delete.
Step 503, the policy execution entity of mobile network performs the operation of deletion strategy.
Step 504, PCRF notifies that the policy decision entity of fixed network deletes strategy associated with the session, and this policy decision entity can be: RACS or RACF or PDP.
Step 505, the policy decision entity of fixed network performs the operation of deletion strategy.
Step 506, the policy execution entity of the policy decision entity notice fixed network of fixed network deletes strategy associated with the session.
Step 507, the policy execution entity of fixed network performs the operation of deletion strategy.
In embodiments of the invention six, when Femtocell/WIFI Connection Release, PCRF notifies that the policy decision entity (RACS/RACF/PDP) of fixed network deletes strategy associated with the session, and the decision-making of the policy decision entity notice fixed network of fixed network performs entity (RCEF/PE-FE/PEP) and deletes strategy associated with the session.Specific implementation flow process as shown in Figure 12b, mainly comprises the following steps:
Step 601, when Femtocell/WIFI Connection Release, PCRF knows conversation end, and needs notice to delete strategy associated with the session.
Step 602, PCRF notifies that the policy execution entity of mobile network deletes strategy associated with the session, and this policy execution entity can be: PCEF and/or BBERF.
Step 603, the policy execution entity of mobile network performs the operation of deletion strategy.
It should be noted that, if data flow is without mobile network, and gone out by fixed network transmission equipment direct routing, so PCRF is without the need to notifying that the policy execution entity implementation strategy of mobile network is deleted, namely in this case, the operation of step 602 ~ 603 can perform.
Step 604, PCRF notifies that the policy decision entity of fixed network deletes strategy associated with the session, and this policy decision entity can be: RACS or RACF or PDP.
Step 605, the policy decision entity of fixed network performs the operation of deletion strategy.
Step 606, the policy execution entity of the policy decision entity notice fixed network of fixed network deletes strategy associated with the session.
Step 607, the policy execution entity of fixed network performs the operation of deletion strategy.
Corresponding above-mentioned policy control method, present invention also offers a kind of policy controlling system to the access of mobile subscriber this locality, comprising: the policy decision entity of mobile network, the policy execution entity of mobile network, the policy decision entity of fixed network and the policy execution entity of fixed network.
Wherein, the policy decision entity of mobile network, for when mobile subscriber is by local access, for the IP-CAN session of this locality access is generated strategy, and sends to the policy execution entity of mobile network and the policy decision entity of fixed network by the strategy of formulation respectively; The policy execution entity of mobile network, for installing and performing received strategy; The policy decision entity of fixed network, for being transmitted to the policy execution entity of fixed network by the strategy of reception; The policy execution entity of fixed network, for installing and performing received strategy.
In sum, by method and system of the present invention, achieve and dynamic QoS control is carried out to the flow of the data flow of mobile subscriber's local IP access, avoid when mobile network and fixed network adhere to different operators separately, accurately cannot control the situation of this part flow, the transmission quality of these data flow is guaranteed.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.

Claims (13)

1., to a policy control method for mobile subscriber this locality access, it is characterized in that, the method comprises:
The policy decision entity of mobile network is that IP connected reference network IP-CAN session is generated strategy, and the strategy of formulation is sent to the policy execution entity of mobile network and the policy decision entity of fixed network respectively;
The strategy of reception is sent to the policy execution entity of fixed network by the policy decision entity of described fixed network;
The policy execution entity of described mobile network and the policy execution entity of fixed network are installed and are performed received strategy;
When described IP-CAN conversation end, the policy decision entity of described mobile network notifies that the policy execution entity of mobile network deletes the strategy relevant to described IP-CAN session with the policy decision entity of fixed network;
The policy execution entity of described mobile network and the policy decision entity of fixed network respectively implementation strategy are deleted, and the policy execution entity of the policy decision entity of described fixed network notice fixed network deletes the strategy relevant to described IP-CAN session;
The policy execution entity implementation strategy of described fixed network is deleted.
2., according to claim 1 to the policy control method of mobile subscriber this locality access, it is characterized in that, the method comprises further:
After the policy decision entity of described fixed network receives strategy, described strategy is preserved, and the strategy preserved is mapped and/or adjusted;
Strategy after mapping and/or adjustment is sent to the policy execution entity of fixed network by the policy decision entity of described fixed network.
3., according to claim 1 to the policy control method of mobile subscriber this locality access, it is characterized in that, the method comprises further:
In described IP-CAN conversation procedure, when the policy decision entity of mobile network is subject to inside or external trigger, and when needing to upgrade the strategy formulated, the strategy after renewal is sent to the policy execution entity of mobile network and the policy decision entity of fixed network by the policy decision entity of described mobile network respectively; Strategy after renewal is transmitted to the policy execution entity of fixed network by the policy decision entity of described fixed network;
The policy execution entity of described mobile network and the policy execution entity of fixed network are installed and are performed the strategy after upgrading.
4. according to any one of claims 1 to 3 to mobile subscriber this locality access policy control method, it is characterized in that, the policy decision entity of described fixed network is: Resource and Admission Control Sub-system (RACS) or resource accommodating control function entity (RACF) or policy decision point (PDP).
5. according to any one of claims 1 to 3 to mobile subscriber this locality access policy control method, it is characterized in that, the policy execution entity of described fixed network is: Resource Control Enforcement Function entity (RCEF) or policy execution functional entity (PE-FE) or Policy Enforcement Point (PEP).
6. according to any one of claims 1 to 3 to mobile subscriber this locality access policy control method, it is characterized in that,
If described mobile subscriber is this locality access connected based on local IP access (LIPA), then the policy execution entity of described mobile network comprise following one of at least: wireless side network element, local gateway (L-GW) and home base-station gateway; Wherein, described wireless side network element comprise following one of at least: base station, base station from home and radio network controller;
If described mobile subscriber is this locality access connected based on femtocell (Femtocell) or Wireless Fidelity (WIFI), then the policy execution entity of described mobile network comprise following one of at least: strategy and charging execution function entity (PCEF) and bearing binding and event reporting function entity (BBERF).
7. according to any one of claims 1 to 3 to mobile subscriber this locality access policy control method, it is characterized in that, described strategy be service quality (QoS) strategy and/or charging policy.
8., to a policy controlling system for mobile subscriber this locality access, it is characterized in that, this system comprises: the policy decision entity of mobile network, the policy execution entity of mobile network, the policy decision entity of fixed network and the policy execution entity of fixed network, wherein,
The policy decision entity of described mobile network, for generating strategy for IP-CAN session, and sends to the policy execution entity of mobile network and the policy decision entity of fixed network respectively by the strategy of formulation;
The policy execution entity of described mobile network, for installing and performing received strategy;
The policy decision entity of described fixed network, for sending to the policy execution entity of fixed network by the strategy of reception;
The policy execution entity of described fixed network, for installing and performing received strategy;
The policy decision entity of described mobile network is further used for, and when described IP-CAN conversation end, notifies that the policy execution entity of mobile network deletes the strategy relevant to described IP-CAN session with the policy decision entity of fixed network;
Accordingly, the policy decision entity of described fixed network is further used for, and implementation strategy is deleted, and notifies that the policy execution entity of fixed network deletes the strategy relevant to described IP-CAN session;
The policy execution entity of described mobile network and the policy execution entity of fixed network are further used for, and implementation strategy is deleted respectively.
9. according to claim 8 to the policy controlling system of mobile subscriber this locality access, it is characterized in that, the policy decision entity of described fixed network is further used for, after receiving strategy, described strategy is preserved, and the strategy preserved is mapped and/or adjusted, then the strategy after mapping and/or adjustment is sent to the policy execution entity of fixed network.
10. according to claim 8 to the policy controlling system of mobile subscriber this locality access, it is characterized in that, the policy decision entity of described mobile network is further used for, in described IP-CAN conversation procedure, when the policy decision entity of mobile network is subject to inside or external trigger, and when needing to upgrade the strategy formulated, the strategy after upgrading is sent to the policy execution entity of mobile network and the policy decision entity of fixed network respectively;
Accordingly, the policy decision entity of described fixed network is further used for, and the strategy after renewal is transmitted to the policy execution entity of fixed network;
The policy execution entity of described mobile network and the policy execution entity of fixed network are further used for, and install and perform the strategy after upgrading.
To the policy controlling system of mobile subscriber this locality access described in 11. any one of according to Claim 8 to 10, it is characterized in that, the policy decision entity of described fixed network is: RACS or RACF or PDP.
To the policy controlling system of mobile subscriber this locality access described in 12. any one of according to Claim 8 to 10, it is characterized in that, the policy execution entity of described fixed network is: RCEF or PE-FE or PEP.
To the policy controlling system of mobile subscriber this locality access described in 13. any one of according to Claim 8 to 10, it is characterized in that,
If described mobile subscriber is this locality access connected based on LIPA, then the policy execution entity of described mobile network comprise following one of at least: wireless side network element, L-GW and home base-station gateway; Wherein, described wireless side network element comprise following one of at least: base station, base station from home and radio network controller;
If described mobile subscriber is this locality access connected based on Femtocell or WIFI, then the policy execution entity of described mobile network comprise following one of at least: PCEF and BBERF.
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